| 1 | /* |
| 2 | * utils for libavcodec |
| 3 | * Copyright (c) 2001 Fabrice Bellard |
| 4 | * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
| 5 | * |
| 6 | * This file is part of FFmpeg. |
| 7 | * |
| 8 | * FFmpeg is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; either |
| 11 | * version 2.1 of the License, or (at your option) any later version. |
| 12 | * |
| 13 | * FFmpeg is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with FFmpeg; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | /** |
| 24 | * @file |
| 25 | * utils. |
| 26 | */ |
| 27 | |
| 28 | #include "config.h" |
| 29 | #include "libavutil/atomic.h" |
| 30 | #include "libavutil/attributes.h" |
| 31 | #include "libavutil/avassert.h" |
| 32 | #include "libavutil/avstring.h" |
| 33 | #include "libavutil/bprint.h" |
| 34 | #include "libavutil/channel_layout.h" |
| 35 | #include "libavutil/crc.h" |
| 36 | #include "libavutil/frame.h" |
| 37 | #include "libavutil/internal.h" |
| 38 | #include "libavutil/mathematics.h" |
| 39 | #include "libavutil/pixdesc.h" |
| 40 | #include "libavutil/imgutils.h" |
| 41 | #include "libavutil/samplefmt.h" |
| 42 | #include "libavutil/dict.h" |
| 43 | #include "avcodec.h" |
| 44 | #include "libavutil/opt.h" |
| 45 | #include "me_cmp.h" |
| 46 | #include "mpegvideo.h" |
| 47 | #include "thread.h" |
| 48 | #include "frame_thread_encoder.h" |
| 49 | #include "internal.h" |
| 50 | #include "raw.h" |
| 51 | #include "bytestream.h" |
| 52 | #include "version.h" |
| 53 | #include <stdlib.h> |
| 54 | #include <stdarg.h> |
| 55 | #include <limits.h> |
| 56 | #include <float.h> |
| 57 | #if CONFIG_ICONV |
| 58 | # include <iconv.h> |
| 59 | #endif |
| 60 | |
| 61 | #if HAVE_PTHREADS |
| 62 | #include <pthread.h> |
| 63 | #elif HAVE_W32THREADS |
| 64 | #include "compat/w32pthreads.h" |
| 65 | #elif HAVE_OS2THREADS |
| 66 | #include "compat/os2threads.h" |
| 67 | #endif |
| 68 | |
| 69 | #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS |
| 70 | static int default_lockmgr_cb(void **arg, enum AVLockOp op) |
| 71 | { |
| 72 | void * volatile * mutex = arg; |
| 73 | int err; |
| 74 | |
| 75 | switch (op) { |
| 76 | case AV_LOCK_CREATE: |
| 77 | return 0; |
| 78 | case AV_LOCK_OBTAIN: |
| 79 | if (!*mutex) { |
| 80 | pthread_mutex_t *tmp = av_malloc(sizeof(pthread_mutex_t)); |
| 81 | if (!tmp) |
| 82 | return AVERROR(ENOMEM); |
| 83 | if ((err = pthread_mutex_init(tmp, NULL))) { |
| 84 | av_free(tmp); |
| 85 | return AVERROR(err); |
| 86 | } |
| 87 | if (avpriv_atomic_ptr_cas(mutex, NULL, tmp)) { |
| 88 | pthread_mutex_destroy(tmp); |
| 89 | av_free(tmp); |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | if ((err = pthread_mutex_lock(*mutex))) |
| 94 | return AVERROR(err); |
| 95 | |
| 96 | return 0; |
| 97 | case AV_LOCK_RELEASE: |
| 98 | if ((err = pthread_mutex_unlock(*mutex))) |
| 99 | return AVERROR(err); |
| 100 | |
| 101 | return 0; |
| 102 | case AV_LOCK_DESTROY: |
| 103 | if (*mutex) |
| 104 | pthread_mutex_destroy(*mutex); |
| 105 | av_free(*mutex); |
| 106 | avpriv_atomic_ptr_cas(mutex, *mutex, NULL); |
| 107 | return 0; |
| 108 | } |
| 109 | return 1; |
| 110 | } |
| 111 | static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = default_lockmgr_cb; |
| 112 | #else |
| 113 | static int (*lockmgr_cb)(void **mutex, enum AVLockOp op) = NULL; |
| 114 | #endif |
| 115 | |
| 116 | |
| 117 | volatile int ff_avcodec_locked; |
| 118 | static int volatile entangled_thread_counter = 0; |
| 119 | static void *codec_mutex; |
| 120 | static void *avformat_mutex; |
| 121 | |
| 122 | static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc) |
| 123 | { |
| 124 | void **p = ptr; |
| 125 | if (min_size < *size) |
| 126 | return 0; |
| 127 | min_size = FFMAX(17 * min_size / 16 + 32, min_size); |
| 128 | av_free(*p); |
| 129 | *p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size); |
| 130 | if (!*p) |
| 131 | min_size = 0; |
| 132 | *size = min_size; |
| 133 | return 1; |
| 134 | } |
| 135 | |
| 136 | void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size) |
| 137 | { |
| 138 | uint8_t **p = ptr; |
| 139 | if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) { |
| 140 | av_freep(p); |
| 141 | *size = 0; |
| 142 | return; |
| 143 | } |
| 144 | if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1)) |
| 145 | memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE); |
| 146 | } |
| 147 | |
| 148 | void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size) |
| 149 | { |
| 150 | uint8_t **p = ptr; |
| 151 | if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) { |
| 152 | av_freep(p); |
| 153 | *size = 0; |
| 154 | return; |
| 155 | } |
| 156 | if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1)) |
| 157 | memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 158 | } |
| 159 | |
| 160 | /* encoder management */ |
| 161 | static AVCodec *first_avcodec = NULL; |
| 162 | static AVCodec **last_avcodec = &first_avcodec; |
| 163 | |
| 164 | AVCodec *av_codec_next(const AVCodec *c) |
| 165 | { |
| 166 | if (c) |
| 167 | return c->next; |
| 168 | else |
| 169 | return first_avcodec; |
| 170 | } |
| 171 | |
| 172 | static av_cold void avcodec_init(void) |
| 173 | { |
| 174 | static int initialized = 0; |
| 175 | |
| 176 | if (initialized != 0) |
| 177 | return; |
| 178 | initialized = 1; |
| 179 | |
| 180 | if (CONFIG_ME_CMP) |
| 181 | ff_me_cmp_init_static(); |
| 182 | } |
| 183 | |
| 184 | int av_codec_is_encoder(const AVCodec *codec) |
| 185 | { |
| 186 | return codec && (codec->encode_sub || codec->encode2); |
| 187 | } |
| 188 | |
| 189 | int av_codec_is_decoder(const AVCodec *codec) |
| 190 | { |
| 191 | return codec && codec->decode; |
| 192 | } |
| 193 | |
| 194 | av_cold void avcodec_register(AVCodec *codec) |
| 195 | { |
| 196 | AVCodec **p; |
| 197 | avcodec_init(); |
| 198 | p = last_avcodec; |
| 199 | codec->next = NULL; |
| 200 | |
| 201 | while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, codec)) |
| 202 | p = &(*p)->next; |
| 203 | last_avcodec = &codec->next; |
| 204 | |
| 205 | if (codec->init_static_data) |
| 206 | codec->init_static_data(codec); |
| 207 | } |
| 208 | |
| 209 | #if FF_API_EMU_EDGE |
| 210 | unsigned avcodec_get_edge_width(void) |
| 211 | { |
| 212 | return EDGE_WIDTH; |
| 213 | } |
| 214 | #endif |
| 215 | |
| 216 | #if FF_API_SET_DIMENSIONS |
| 217 | void avcodec_set_dimensions(AVCodecContext *s, int width, int height) |
| 218 | { |
| 219 | int ret = ff_set_dimensions(s, width, height); |
| 220 | if (ret < 0) { |
| 221 | av_log(s, AV_LOG_WARNING, "Failed to set dimensions %d %d\n", width, height); |
| 222 | } |
| 223 | } |
| 224 | #endif |
| 225 | |
| 226 | int ff_set_dimensions(AVCodecContext *s, int width, int height) |
| 227 | { |
| 228 | int ret = av_image_check_size(width, height, 0, s); |
| 229 | |
| 230 | if (ret < 0) |
| 231 | width = height = 0; |
| 232 | |
| 233 | s->coded_width = width; |
| 234 | s->coded_height = height; |
| 235 | s->width = FF_CEIL_RSHIFT(width, s->lowres); |
| 236 | s->height = FF_CEIL_RSHIFT(height, s->lowres); |
| 237 | |
| 238 | return ret; |
| 239 | } |
| 240 | |
| 241 | int ff_set_sar(AVCodecContext *avctx, AVRational sar) |
| 242 | { |
| 243 | int ret = av_image_check_sar(avctx->width, avctx->height, sar); |
| 244 | |
| 245 | if (ret < 0) { |
| 246 | av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n", |
| 247 | sar.num, sar.den); |
| 248 | avctx->sample_aspect_ratio = (AVRational){ 0, 1 }; |
| 249 | return ret; |
| 250 | } else { |
| 251 | avctx->sample_aspect_ratio = sar; |
| 252 | } |
| 253 | return 0; |
| 254 | } |
| 255 | |
| 256 | int ff_side_data_update_matrix_encoding(AVFrame *frame, |
| 257 | enum AVMatrixEncoding matrix_encoding) |
| 258 | { |
| 259 | AVFrameSideData *side_data; |
| 260 | enum AVMatrixEncoding *data; |
| 261 | |
| 262 | side_data = av_frame_get_side_data(frame, AV_FRAME_DATA_MATRIXENCODING); |
| 263 | if (!side_data) |
| 264 | side_data = av_frame_new_side_data(frame, AV_FRAME_DATA_MATRIXENCODING, |
| 265 | sizeof(enum AVMatrixEncoding)); |
| 266 | |
| 267 | if (!side_data) |
| 268 | return AVERROR(ENOMEM); |
| 269 | |
| 270 | data = (enum AVMatrixEncoding*)side_data->data; |
| 271 | *data = matrix_encoding; |
| 272 | |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, |
| 277 | int linesize_align[AV_NUM_DATA_POINTERS]) |
| 278 | { |
| 279 | int i; |
| 280 | int w_align = 1; |
| 281 | int h_align = 1; |
| 282 | AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt); |
| 283 | |
| 284 | if (desc) { |
| 285 | w_align = 1 << desc->log2_chroma_w; |
| 286 | h_align = 1 << desc->log2_chroma_h; |
| 287 | } |
| 288 | |
| 289 | switch (s->pix_fmt) { |
| 290 | case AV_PIX_FMT_YUV420P: |
| 291 | case AV_PIX_FMT_YUYV422: |
| 292 | case AV_PIX_FMT_YVYU422: |
| 293 | case AV_PIX_FMT_UYVY422: |
| 294 | case AV_PIX_FMT_YUV422P: |
| 295 | case AV_PIX_FMT_YUV440P: |
| 296 | case AV_PIX_FMT_YUV444P: |
| 297 | case AV_PIX_FMT_GBRAP: |
| 298 | case AV_PIX_FMT_GBRP: |
| 299 | case AV_PIX_FMT_GRAY8: |
| 300 | case AV_PIX_FMT_GRAY16BE: |
| 301 | case AV_PIX_FMT_GRAY16LE: |
| 302 | case AV_PIX_FMT_YUVJ420P: |
| 303 | case AV_PIX_FMT_YUVJ422P: |
| 304 | case AV_PIX_FMT_YUVJ440P: |
| 305 | case AV_PIX_FMT_YUVJ444P: |
| 306 | case AV_PIX_FMT_YUVA420P: |
| 307 | case AV_PIX_FMT_YUVA422P: |
| 308 | case AV_PIX_FMT_YUVA444P: |
| 309 | case AV_PIX_FMT_YUV420P9LE: |
| 310 | case AV_PIX_FMT_YUV420P9BE: |
| 311 | case AV_PIX_FMT_YUV420P10LE: |
| 312 | case AV_PIX_FMT_YUV420P10BE: |
| 313 | case AV_PIX_FMT_YUV420P12LE: |
| 314 | case AV_PIX_FMT_YUV420P12BE: |
| 315 | case AV_PIX_FMT_YUV420P14LE: |
| 316 | case AV_PIX_FMT_YUV420P14BE: |
| 317 | case AV_PIX_FMT_YUV420P16LE: |
| 318 | case AV_PIX_FMT_YUV420P16BE: |
| 319 | case AV_PIX_FMT_YUVA420P9LE: |
| 320 | case AV_PIX_FMT_YUVA420P9BE: |
| 321 | case AV_PIX_FMT_YUVA420P10LE: |
| 322 | case AV_PIX_FMT_YUVA420P10BE: |
| 323 | case AV_PIX_FMT_YUVA420P16LE: |
| 324 | case AV_PIX_FMT_YUVA420P16BE: |
| 325 | case AV_PIX_FMT_YUV422P9LE: |
| 326 | case AV_PIX_FMT_YUV422P9BE: |
| 327 | case AV_PIX_FMT_YUV422P10LE: |
| 328 | case AV_PIX_FMT_YUV422P10BE: |
| 329 | case AV_PIX_FMT_YUV422P12LE: |
| 330 | case AV_PIX_FMT_YUV422P12BE: |
| 331 | case AV_PIX_FMT_YUV422P14LE: |
| 332 | case AV_PIX_FMT_YUV422P14BE: |
| 333 | case AV_PIX_FMT_YUV422P16LE: |
| 334 | case AV_PIX_FMT_YUV422P16BE: |
| 335 | case AV_PIX_FMT_YUVA422P9LE: |
| 336 | case AV_PIX_FMT_YUVA422P9BE: |
| 337 | case AV_PIX_FMT_YUVA422P10LE: |
| 338 | case AV_PIX_FMT_YUVA422P10BE: |
| 339 | case AV_PIX_FMT_YUVA422P16LE: |
| 340 | case AV_PIX_FMT_YUVA422P16BE: |
| 341 | case AV_PIX_FMT_YUV444P9LE: |
| 342 | case AV_PIX_FMT_YUV444P9BE: |
| 343 | case AV_PIX_FMT_YUV444P10LE: |
| 344 | case AV_PIX_FMT_YUV444P10BE: |
| 345 | case AV_PIX_FMT_YUV444P12LE: |
| 346 | case AV_PIX_FMT_YUV444P12BE: |
| 347 | case AV_PIX_FMT_YUV444P14LE: |
| 348 | case AV_PIX_FMT_YUV444P14BE: |
| 349 | case AV_PIX_FMT_YUV444P16LE: |
| 350 | case AV_PIX_FMT_YUV444P16BE: |
| 351 | case AV_PIX_FMT_YUVA444P9LE: |
| 352 | case AV_PIX_FMT_YUVA444P9BE: |
| 353 | case AV_PIX_FMT_YUVA444P10LE: |
| 354 | case AV_PIX_FMT_YUVA444P10BE: |
| 355 | case AV_PIX_FMT_YUVA444P16LE: |
| 356 | case AV_PIX_FMT_YUVA444P16BE: |
| 357 | case AV_PIX_FMT_GBRP9LE: |
| 358 | case AV_PIX_FMT_GBRP9BE: |
| 359 | case AV_PIX_FMT_GBRP10LE: |
| 360 | case AV_PIX_FMT_GBRP10BE: |
| 361 | case AV_PIX_FMT_GBRP12LE: |
| 362 | case AV_PIX_FMT_GBRP12BE: |
| 363 | case AV_PIX_FMT_GBRP14LE: |
| 364 | case AV_PIX_FMT_GBRP14BE: |
| 365 | case AV_PIX_FMT_GBRP16LE: |
| 366 | case AV_PIX_FMT_GBRP16BE: |
| 367 | w_align = 16; //FIXME assume 16 pixel per macroblock |
| 368 | h_align = 16 * 2; // interlaced needs 2 macroblocks height |
| 369 | break; |
| 370 | case AV_PIX_FMT_YUV411P: |
| 371 | case AV_PIX_FMT_YUVJ411P: |
| 372 | case AV_PIX_FMT_UYYVYY411: |
| 373 | w_align = 32; |
| 374 | h_align = 8; |
| 375 | break; |
| 376 | case AV_PIX_FMT_YUV410P: |
| 377 | if (s->codec_id == AV_CODEC_ID_SVQ1) { |
| 378 | w_align = 64; |
| 379 | h_align = 64; |
| 380 | } |
| 381 | break; |
| 382 | case AV_PIX_FMT_RGB555: |
| 383 | if (s->codec_id == AV_CODEC_ID_RPZA) { |
| 384 | w_align = 4; |
| 385 | h_align = 4; |
| 386 | } |
| 387 | break; |
| 388 | case AV_PIX_FMT_PAL8: |
| 389 | case AV_PIX_FMT_BGR8: |
| 390 | case AV_PIX_FMT_RGB8: |
| 391 | if (s->codec_id == AV_CODEC_ID_SMC || |
| 392 | s->codec_id == AV_CODEC_ID_CINEPAK) { |
| 393 | w_align = 4; |
| 394 | h_align = 4; |
| 395 | } |
| 396 | if (s->codec_id == AV_CODEC_ID_JV) { |
| 397 | w_align = 8; |
| 398 | h_align = 8; |
| 399 | } |
| 400 | break; |
| 401 | case AV_PIX_FMT_BGR24: |
| 402 | if ((s->codec_id == AV_CODEC_ID_MSZH) || |
| 403 | (s->codec_id == AV_CODEC_ID_ZLIB)) { |
| 404 | w_align = 4; |
| 405 | h_align = 4; |
| 406 | } |
| 407 | break; |
| 408 | case AV_PIX_FMT_RGB24: |
| 409 | if (s->codec_id == AV_CODEC_ID_CINEPAK) { |
| 410 | w_align = 4; |
| 411 | h_align = 4; |
| 412 | } |
| 413 | break; |
| 414 | default: |
| 415 | break; |
| 416 | } |
| 417 | |
| 418 | if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) { |
| 419 | w_align = FFMAX(w_align, 8); |
| 420 | } |
| 421 | |
| 422 | *width = FFALIGN(*width, w_align); |
| 423 | *height = FFALIGN(*height, h_align); |
| 424 | if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) |
| 425 | // some of the optimized chroma MC reads one line too much |
| 426 | // which is also done in mpeg decoders with lowres > 0 |
| 427 | *height += 2; |
| 428 | |
| 429 | for (i = 0; i < 4; i++) |
| 430 | linesize_align[i] = STRIDE_ALIGN; |
| 431 | } |
| 432 | |
| 433 | void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height) |
| 434 | { |
| 435 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt); |
| 436 | int chroma_shift = desc->log2_chroma_w; |
| 437 | int linesize_align[AV_NUM_DATA_POINTERS]; |
| 438 | int align; |
| 439 | |
| 440 | avcodec_align_dimensions2(s, width, height, linesize_align); |
| 441 | align = FFMAX(linesize_align[0], linesize_align[3]); |
| 442 | linesize_align[1] <<= chroma_shift; |
| 443 | linesize_align[2] <<= chroma_shift; |
| 444 | align = FFMAX3(align, linesize_align[1], linesize_align[2]); |
| 445 | *width = FFALIGN(*width, align); |
| 446 | } |
| 447 | |
| 448 | int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos) |
| 449 | { |
| 450 | if (pos <= AVCHROMA_LOC_UNSPECIFIED || pos >= AVCHROMA_LOC_NB) |
| 451 | return AVERROR(EINVAL); |
| 452 | pos--; |
| 453 | |
| 454 | *xpos = (pos&1) * 128; |
| 455 | *ypos = ((pos>>1)^(pos<4)) * 128; |
| 456 | |
| 457 | return 0; |
| 458 | } |
| 459 | |
| 460 | enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos) |
| 461 | { |
| 462 | int pos, xout, yout; |
| 463 | |
| 464 | for (pos = AVCHROMA_LOC_UNSPECIFIED + 1; pos < AVCHROMA_LOC_NB; pos++) { |
| 465 | if (avcodec_enum_to_chroma_pos(&xout, &yout, pos) == 0 && xout == xpos && yout == ypos) |
| 466 | return pos; |
| 467 | } |
| 468 | return AVCHROMA_LOC_UNSPECIFIED; |
| 469 | } |
| 470 | |
| 471 | int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, |
| 472 | enum AVSampleFormat sample_fmt, const uint8_t *buf, |
| 473 | int buf_size, int align) |
| 474 | { |
| 475 | int ch, planar, needed_size, ret = 0; |
| 476 | |
| 477 | needed_size = av_samples_get_buffer_size(NULL, nb_channels, |
| 478 | frame->nb_samples, sample_fmt, |
| 479 | align); |
| 480 | if (buf_size < needed_size) |
| 481 | return AVERROR(EINVAL); |
| 482 | |
| 483 | planar = av_sample_fmt_is_planar(sample_fmt); |
| 484 | if (planar && nb_channels > AV_NUM_DATA_POINTERS) { |
| 485 | if (!(frame->extended_data = av_mallocz_array(nb_channels, |
| 486 | sizeof(*frame->extended_data)))) |
| 487 | return AVERROR(ENOMEM); |
| 488 | } else { |
| 489 | frame->extended_data = frame->data; |
| 490 | } |
| 491 | |
| 492 | if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0], |
| 493 | (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples, |
| 494 | sample_fmt, align)) < 0) { |
| 495 | if (frame->extended_data != frame->data) |
| 496 | av_freep(&frame->extended_data); |
| 497 | return ret; |
| 498 | } |
| 499 | if (frame->extended_data != frame->data) { |
| 500 | for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++) |
| 501 | frame->data[ch] = frame->extended_data[ch]; |
| 502 | } |
| 503 | |
| 504 | return ret; |
| 505 | } |
| 506 | |
| 507 | static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame) |
| 508 | { |
| 509 | FramePool *pool = avctx->internal->pool; |
| 510 | int i, ret; |
| 511 | |
| 512 | switch (avctx->codec_type) { |
| 513 | case AVMEDIA_TYPE_VIDEO: { |
| 514 | AVPicture picture; |
| 515 | int size[4] = { 0 }; |
| 516 | int w = frame->width; |
| 517 | int h = frame->height; |
| 518 | int tmpsize, unaligned; |
| 519 | |
| 520 | if (pool->format == frame->format && |
| 521 | pool->width == frame->width && pool->height == frame->height) |
| 522 | return 0; |
| 523 | |
| 524 | avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align); |
| 525 | |
| 526 | do { |
| 527 | // NOTE: do not align linesizes individually, this breaks e.g. assumptions |
| 528 | // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2 |
| 529 | av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w); |
| 530 | // increase alignment of w for next try (rhs gives the lowest bit set in w) |
| 531 | w += w & ~(w - 1); |
| 532 | |
| 533 | unaligned = 0; |
| 534 | for (i = 0; i < 4; i++) |
| 535 | unaligned |= picture.linesize[i] % pool->stride_align[i]; |
| 536 | } while (unaligned); |
| 537 | |
| 538 | tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h, |
| 539 | NULL, picture.linesize); |
| 540 | if (tmpsize < 0) |
| 541 | return -1; |
| 542 | |
| 543 | for (i = 0; i < 3 && picture.data[i + 1]; i++) |
| 544 | size[i] = picture.data[i + 1] - picture.data[i]; |
| 545 | size[i] = tmpsize - (picture.data[i] - picture.data[0]); |
| 546 | |
| 547 | for (i = 0; i < 4; i++) { |
| 548 | av_buffer_pool_uninit(&pool->pools[i]); |
| 549 | pool->linesize[i] = picture.linesize[i]; |
| 550 | if (size[i]) { |
| 551 | pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1, |
| 552 | CONFIG_MEMORY_POISONING ? |
| 553 | NULL : |
| 554 | av_buffer_allocz); |
| 555 | if (!pool->pools[i]) { |
| 556 | ret = AVERROR(ENOMEM); |
| 557 | goto fail; |
| 558 | } |
| 559 | } |
| 560 | } |
| 561 | pool->format = frame->format; |
| 562 | pool->width = frame->width; |
| 563 | pool->height = frame->height; |
| 564 | |
| 565 | break; |
| 566 | } |
| 567 | case AVMEDIA_TYPE_AUDIO: { |
| 568 | int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout); |
| 569 | int planar = av_sample_fmt_is_planar(frame->format); |
| 570 | int planes = planar ? ch : 1; |
| 571 | |
| 572 | if (pool->format == frame->format && pool->planes == planes && |
| 573 | pool->channels == ch && frame->nb_samples == pool->samples) |
| 574 | return 0; |
| 575 | |
| 576 | av_buffer_pool_uninit(&pool->pools[0]); |
| 577 | ret = av_samples_get_buffer_size(&pool->linesize[0], ch, |
| 578 | frame->nb_samples, frame->format, 0); |
| 579 | if (ret < 0) |
| 580 | goto fail; |
| 581 | |
| 582 | pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL); |
| 583 | if (!pool->pools[0]) { |
| 584 | ret = AVERROR(ENOMEM); |
| 585 | goto fail; |
| 586 | } |
| 587 | |
| 588 | pool->format = frame->format; |
| 589 | pool->planes = planes; |
| 590 | pool->channels = ch; |
| 591 | pool->samples = frame->nb_samples; |
| 592 | break; |
| 593 | } |
| 594 | default: av_assert0(0); |
| 595 | } |
| 596 | return 0; |
| 597 | fail: |
| 598 | for (i = 0; i < 4; i++) |
| 599 | av_buffer_pool_uninit(&pool->pools[i]); |
| 600 | pool->format = -1; |
| 601 | pool->planes = pool->channels = pool->samples = 0; |
| 602 | pool->width = pool->height = 0; |
| 603 | return ret; |
| 604 | } |
| 605 | |
| 606 | static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame) |
| 607 | { |
| 608 | FramePool *pool = avctx->internal->pool; |
| 609 | int planes = pool->planes; |
| 610 | int i; |
| 611 | |
| 612 | frame->linesize[0] = pool->linesize[0]; |
| 613 | |
| 614 | if (planes > AV_NUM_DATA_POINTERS) { |
| 615 | frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data)); |
| 616 | frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS; |
| 617 | frame->extended_buf = av_mallocz_array(frame->nb_extended_buf, |
| 618 | sizeof(*frame->extended_buf)); |
| 619 | if (!frame->extended_data || !frame->extended_buf) { |
| 620 | av_freep(&frame->extended_data); |
| 621 | av_freep(&frame->extended_buf); |
| 622 | return AVERROR(ENOMEM); |
| 623 | } |
| 624 | } else { |
| 625 | frame->extended_data = frame->data; |
| 626 | av_assert0(frame->nb_extended_buf == 0); |
| 627 | } |
| 628 | |
| 629 | for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) { |
| 630 | frame->buf[i] = av_buffer_pool_get(pool->pools[0]); |
| 631 | if (!frame->buf[i]) |
| 632 | goto fail; |
| 633 | frame->extended_data[i] = frame->data[i] = frame->buf[i]->data; |
| 634 | } |
| 635 | for (i = 0; i < frame->nb_extended_buf; i++) { |
| 636 | frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]); |
| 637 | if (!frame->extended_buf[i]) |
| 638 | goto fail; |
| 639 | frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data; |
| 640 | } |
| 641 | |
| 642 | if (avctx->debug & FF_DEBUG_BUFFERS) |
| 643 | av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame); |
| 644 | |
| 645 | return 0; |
| 646 | fail: |
| 647 | av_frame_unref(frame); |
| 648 | return AVERROR(ENOMEM); |
| 649 | } |
| 650 | |
| 651 | static int video_get_buffer(AVCodecContext *s, AVFrame *pic) |
| 652 | { |
| 653 | FramePool *pool = s->internal->pool; |
| 654 | int i; |
| 655 | |
| 656 | if (pic->data[0]) { |
| 657 | av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n"); |
| 658 | return -1; |
| 659 | } |
| 660 | |
| 661 | memset(pic->data, 0, sizeof(pic->data)); |
| 662 | pic->extended_data = pic->data; |
| 663 | |
| 664 | for (i = 0; i < 4 && pool->pools[i]; i++) { |
| 665 | pic->linesize[i] = pool->linesize[i]; |
| 666 | |
| 667 | pic->buf[i] = av_buffer_pool_get(pool->pools[i]); |
| 668 | if (!pic->buf[i]) |
| 669 | goto fail; |
| 670 | |
| 671 | pic->data[i] = pic->buf[i]->data; |
| 672 | } |
| 673 | for (; i < AV_NUM_DATA_POINTERS; i++) { |
| 674 | pic->data[i] = NULL; |
| 675 | pic->linesize[i] = 0; |
| 676 | } |
| 677 | if (pic->data[1] && !pic->data[2]) |
| 678 | avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt); |
| 679 | |
| 680 | if (s->debug & FF_DEBUG_BUFFERS) |
| 681 | av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic); |
| 682 | |
| 683 | return 0; |
| 684 | fail: |
| 685 | av_frame_unref(pic); |
| 686 | return AVERROR(ENOMEM); |
| 687 | } |
| 688 | |
| 689 | void avpriv_color_frame(AVFrame *frame, const int c[4]) |
| 690 | { |
| 691 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); |
| 692 | int p, y, x; |
| 693 | |
| 694 | av_assert0(desc->flags & AV_PIX_FMT_FLAG_PLANAR); |
| 695 | |
| 696 | for (p = 0; p<desc->nb_components; p++) { |
| 697 | uint8_t *dst = frame->data[p]; |
| 698 | int is_chroma = p == 1 || p == 2; |
| 699 | int bytes = is_chroma ? FF_CEIL_RSHIFT(frame->width, desc->log2_chroma_w) : frame->width; |
| 700 | int height = is_chroma ? FF_CEIL_RSHIFT(frame->height, desc->log2_chroma_h) : frame->height; |
| 701 | for (y = 0; y < height; y++) { |
| 702 | if (desc->comp[0].depth_minus1 >= 8) { |
| 703 | for (x = 0; x<bytes; x++) |
| 704 | ((uint16_t*)dst)[x] = c[p]; |
| 705 | }else |
| 706 | memset(dst, c[p], bytes); |
| 707 | dst += frame->linesize[p]; |
| 708 | } |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags) |
| 713 | { |
| 714 | int ret; |
| 715 | |
| 716 | if ((ret = update_frame_pool(avctx, frame)) < 0) |
| 717 | return ret; |
| 718 | |
| 719 | #if FF_API_GET_BUFFER |
| 720 | FF_DISABLE_DEPRECATION_WARNINGS |
| 721 | frame->type = FF_BUFFER_TYPE_INTERNAL; |
| 722 | FF_ENABLE_DEPRECATION_WARNINGS |
| 723 | #endif |
| 724 | |
| 725 | switch (avctx->codec_type) { |
| 726 | case AVMEDIA_TYPE_VIDEO: |
| 727 | return video_get_buffer(avctx, frame); |
| 728 | case AVMEDIA_TYPE_AUDIO: |
| 729 | return audio_get_buffer(avctx, frame); |
| 730 | default: |
| 731 | return -1; |
| 732 | } |
| 733 | } |
| 734 | |
| 735 | int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame) |
| 736 | { |
| 737 | AVPacket *pkt = avctx->internal->pkt; |
| 738 | |
| 739 | if (pkt) { |
| 740 | uint8_t *packet_sd; |
| 741 | AVFrameSideData *frame_sd; |
| 742 | int size; |
| 743 | frame->pkt_pts = pkt->pts; |
| 744 | av_frame_set_pkt_pos (frame, pkt->pos); |
| 745 | av_frame_set_pkt_duration(frame, pkt->duration); |
| 746 | av_frame_set_pkt_size (frame, pkt->size); |
| 747 | |
| 748 | /* copy the replaygain data to the output frame */ |
| 749 | packet_sd = av_packet_get_side_data(pkt, AV_PKT_DATA_REPLAYGAIN, &size); |
| 750 | if (packet_sd) { |
| 751 | frame_sd = av_frame_new_side_data(frame, AV_FRAME_DATA_REPLAYGAIN, size); |
| 752 | if (!frame_sd) |
| 753 | return AVERROR(ENOMEM); |
| 754 | |
| 755 | memcpy(frame_sd->data, packet_sd, size); |
| 756 | } |
| 757 | |
| 758 | /* copy the displaymatrix to the output frame */ |
| 759 | packet_sd = av_packet_get_side_data(pkt, AV_PKT_DATA_DISPLAYMATRIX, &size); |
| 760 | if (packet_sd) { |
| 761 | frame_sd = av_frame_new_side_data(frame, AV_FRAME_DATA_DISPLAYMATRIX, size); |
| 762 | if (!frame_sd) |
| 763 | return AVERROR(ENOMEM); |
| 764 | |
| 765 | memcpy(frame_sd->data, packet_sd, size); |
| 766 | } |
| 767 | |
| 768 | /* copy the stereo3d format to the output frame */ |
| 769 | packet_sd = av_packet_get_side_data(pkt, AV_PKT_DATA_STEREO3D, &size); |
| 770 | if (packet_sd) { |
| 771 | frame_sd = av_frame_new_side_data(frame, AV_FRAME_DATA_STEREO3D, size); |
| 772 | if (!frame_sd) |
| 773 | return AVERROR(ENOMEM); |
| 774 | |
| 775 | memcpy(frame_sd->data, packet_sd, size); |
| 776 | } |
| 777 | } else { |
| 778 | frame->pkt_pts = AV_NOPTS_VALUE; |
| 779 | av_frame_set_pkt_pos (frame, -1); |
| 780 | av_frame_set_pkt_duration(frame, 0); |
| 781 | av_frame_set_pkt_size (frame, -1); |
| 782 | } |
| 783 | frame->reordered_opaque = avctx->reordered_opaque; |
| 784 | |
| 785 | if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED) |
| 786 | frame->color_primaries = avctx->color_primaries; |
| 787 | if (frame->color_trc == AVCOL_TRC_UNSPECIFIED) |
| 788 | frame->color_trc = avctx->color_trc; |
| 789 | if (av_frame_get_colorspace(frame) == AVCOL_SPC_UNSPECIFIED) |
| 790 | av_frame_set_colorspace(frame, avctx->colorspace); |
| 791 | if (av_frame_get_color_range(frame) == AVCOL_RANGE_UNSPECIFIED) |
| 792 | av_frame_set_color_range(frame, avctx->color_range); |
| 793 | if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED) |
| 794 | frame->chroma_location = avctx->chroma_sample_location; |
| 795 | |
| 796 | switch (avctx->codec->type) { |
| 797 | case AVMEDIA_TYPE_VIDEO: |
| 798 | frame->format = avctx->pix_fmt; |
| 799 | if (!frame->sample_aspect_ratio.num) |
| 800 | frame->sample_aspect_ratio = avctx->sample_aspect_ratio; |
| 801 | |
| 802 | if (frame->width && frame->height && |
| 803 | av_image_check_sar(frame->width, frame->height, |
| 804 | frame->sample_aspect_ratio) < 0) { |
| 805 | av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n", |
| 806 | frame->sample_aspect_ratio.num, |
| 807 | frame->sample_aspect_ratio.den); |
| 808 | frame->sample_aspect_ratio = (AVRational){ 0, 1 }; |
| 809 | } |
| 810 | |
| 811 | break; |
| 812 | case AVMEDIA_TYPE_AUDIO: |
| 813 | if (!frame->sample_rate) |
| 814 | frame->sample_rate = avctx->sample_rate; |
| 815 | if (frame->format < 0) |
| 816 | frame->format = avctx->sample_fmt; |
| 817 | if (!frame->channel_layout) { |
| 818 | if (avctx->channel_layout) { |
| 819 | if (av_get_channel_layout_nb_channels(avctx->channel_layout) != |
| 820 | avctx->channels) { |
| 821 | av_log(avctx, AV_LOG_ERROR, "Inconsistent channel " |
| 822 | "configuration.\n"); |
| 823 | return AVERROR(EINVAL); |
| 824 | } |
| 825 | |
| 826 | frame->channel_layout = avctx->channel_layout; |
| 827 | } else { |
| 828 | if (avctx->channels > FF_SANE_NB_CHANNELS) { |
| 829 | av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n", |
| 830 | avctx->channels); |
| 831 | return AVERROR(ENOSYS); |
| 832 | } |
| 833 | } |
| 834 | } |
| 835 | av_frame_set_channels(frame, avctx->channels); |
| 836 | break; |
| 837 | } |
| 838 | return 0; |
| 839 | } |
| 840 | |
| 841 | #if FF_API_GET_BUFFER |
| 842 | FF_DISABLE_DEPRECATION_WARNINGS |
| 843 | int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame) |
| 844 | { |
| 845 | return avcodec_default_get_buffer2(avctx, frame, 0); |
| 846 | } |
| 847 | |
| 848 | typedef struct CompatReleaseBufPriv { |
| 849 | AVCodecContext avctx; |
| 850 | AVFrame frame; |
| 851 | uint8_t avframe_padding[1024]; // hack to allow linking to a avutil with larger AVFrame |
| 852 | } CompatReleaseBufPriv; |
| 853 | |
| 854 | static void compat_free_buffer(void *opaque, uint8_t *data) |
| 855 | { |
| 856 | CompatReleaseBufPriv *priv = opaque; |
| 857 | if (priv->avctx.release_buffer) |
| 858 | priv->avctx.release_buffer(&priv->avctx, &priv->frame); |
| 859 | av_freep(&priv); |
| 860 | } |
| 861 | |
| 862 | static void compat_release_buffer(void *opaque, uint8_t *data) |
| 863 | { |
| 864 | AVBufferRef *buf = opaque; |
| 865 | av_buffer_unref(&buf); |
| 866 | } |
| 867 | FF_ENABLE_DEPRECATION_WARNINGS |
| 868 | #endif |
| 869 | |
| 870 | int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame) |
| 871 | { |
| 872 | return ff_init_buffer_info(avctx, frame); |
| 873 | } |
| 874 | |
| 875 | static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags) |
| 876 | { |
| 877 | const AVHWAccel *hwaccel = avctx->hwaccel; |
| 878 | int override_dimensions = 1; |
| 879 | int ret; |
| 880 | |
| 881 | if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
| 882 | if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) { |
| 883 | av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n"); |
| 884 | return AVERROR(EINVAL); |
| 885 | } |
| 886 | } |
| 887 | if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
| 888 | if (frame->width <= 0 || frame->height <= 0) { |
| 889 | frame->width = FFMAX(avctx->width, FF_CEIL_RSHIFT(avctx->coded_width, avctx->lowres)); |
| 890 | frame->height = FFMAX(avctx->height, FF_CEIL_RSHIFT(avctx->coded_height, avctx->lowres)); |
| 891 | override_dimensions = 0; |
| 892 | } |
| 893 | } |
| 894 | ret = ff_decode_frame_props(avctx, frame); |
| 895 | if (ret < 0) |
| 896 | return ret; |
| 897 | if ((ret = ff_init_buffer_info(avctx, frame)) < 0) |
| 898 | return ret; |
| 899 | |
| 900 | if (hwaccel && hwaccel->alloc_frame) { |
| 901 | ret = hwaccel->alloc_frame(avctx, frame); |
| 902 | goto end; |
| 903 | } |
| 904 | |
| 905 | #if FF_API_GET_BUFFER |
| 906 | FF_DISABLE_DEPRECATION_WARNINGS |
| 907 | /* |
| 908 | * Wrap an old get_buffer()-allocated buffer in a bunch of AVBuffers. |
| 909 | * We wrap each plane in its own AVBuffer. Each of those has a reference to |
| 910 | * a dummy AVBuffer as its private data, unreffing it on free. |
| 911 | * When all the planes are freed, the dummy buffer's free callback calls |
| 912 | * release_buffer(). |
| 913 | */ |
| 914 | if (avctx->get_buffer) { |
| 915 | CompatReleaseBufPriv *priv = NULL; |
| 916 | AVBufferRef *dummy_buf = NULL; |
| 917 | int planes, i, ret; |
| 918 | |
| 919 | if (flags & AV_GET_BUFFER_FLAG_REF) |
| 920 | frame->reference = 1; |
| 921 | |
| 922 | ret = avctx->get_buffer(avctx, frame); |
| 923 | if (ret < 0) |
| 924 | return ret; |
| 925 | |
| 926 | /* return if the buffers are already set up |
| 927 | * this would happen e.g. when a custom get_buffer() calls |
| 928 | * avcodec_default_get_buffer |
| 929 | */ |
| 930 | if (frame->buf[0]) |
| 931 | goto end0; |
| 932 | |
| 933 | priv = av_mallocz(sizeof(*priv)); |
| 934 | if (!priv) { |
| 935 | ret = AVERROR(ENOMEM); |
| 936 | goto fail; |
| 937 | } |
| 938 | priv->avctx = *avctx; |
| 939 | priv->frame = *frame; |
| 940 | |
| 941 | dummy_buf = av_buffer_create(NULL, 0, compat_free_buffer, priv, 0); |
| 942 | if (!dummy_buf) { |
| 943 | ret = AVERROR(ENOMEM); |
| 944 | goto fail; |
| 945 | } |
| 946 | |
| 947 | #define WRAP_PLANE(ref_out, data, data_size) \ |
| 948 | do { \ |
| 949 | AVBufferRef *dummy_ref = av_buffer_ref(dummy_buf); \ |
| 950 | if (!dummy_ref) { \ |
| 951 | ret = AVERROR(ENOMEM); \ |
| 952 | goto fail; \ |
| 953 | } \ |
| 954 | ref_out = av_buffer_create(data, data_size, compat_release_buffer, \ |
| 955 | dummy_ref, 0); \ |
| 956 | if (!ref_out) { \ |
| 957 | av_frame_unref(frame); \ |
| 958 | ret = AVERROR(ENOMEM); \ |
| 959 | goto fail; \ |
| 960 | } \ |
| 961 | } while (0) |
| 962 | |
| 963 | if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
| 964 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); |
| 965 | |
| 966 | planes = av_pix_fmt_count_planes(frame->format); |
| 967 | /* workaround for AVHWAccel plane count of 0, buf[0] is used as |
| 968 | check for allocated buffers: make libavcodec happy */ |
| 969 | if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL) |
| 970 | planes = 1; |
| 971 | if (!desc || planes <= 0) { |
| 972 | ret = AVERROR(EINVAL); |
| 973 | goto fail; |
| 974 | } |
| 975 | |
| 976 | for (i = 0; i < planes; i++) { |
| 977 | int v_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0; |
| 978 | int plane_size = (frame->height >> v_shift) * frame->linesize[i]; |
| 979 | |
| 980 | WRAP_PLANE(frame->buf[i], frame->data[i], plane_size); |
| 981 | } |
| 982 | } else { |
| 983 | int planar = av_sample_fmt_is_planar(frame->format); |
| 984 | planes = planar ? avctx->channels : 1; |
| 985 | |
| 986 | if (planes > FF_ARRAY_ELEMS(frame->buf)) { |
| 987 | frame->nb_extended_buf = planes - FF_ARRAY_ELEMS(frame->buf); |
| 988 | frame->extended_buf = av_malloc_array(sizeof(*frame->extended_buf), |
| 989 | frame->nb_extended_buf); |
| 990 | if (!frame->extended_buf) { |
| 991 | ret = AVERROR(ENOMEM); |
| 992 | goto fail; |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | for (i = 0; i < FFMIN(planes, FF_ARRAY_ELEMS(frame->buf)); i++) |
| 997 | WRAP_PLANE(frame->buf[i], frame->extended_data[i], frame->linesize[0]); |
| 998 | |
| 999 | for (i = 0; i < frame->nb_extended_buf; i++) |
| 1000 | WRAP_PLANE(frame->extended_buf[i], |
| 1001 | frame->extended_data[i + FF_ARRAY_ELEMS(frame->buf)], |
| 1002 | frame->linesize[0]); |
| 1003 | } |
| 1004 | |
| 1005 | av_buffer_unref(&dummy_buf); |
| 1006 | |
| 1007 | end0: |
| 1008 | frame->width = avctx->width; |
| 1009 | frame->height = avctx->height; |
| 1010 | |
| 1011 | return 0; |
| 1012 | |
| 1013 | fail: |
| 1014 | avctx->release_buffer(avctx, frame); |
| 1015 | av_freep(&priv); |
| 1016 | av_buffer_unref(&dummy_buf); |
| 1017 | return ret; |
| 1018 | } |
| 1019 | FF_ENABLE_DEPRECATION_WARNINGS |
| 1020 | #endif |
| 1021 | |
| 1022 | ret = avctx->get_buffer2(avctx, frame, flags); |
| 1023 | |
| 1024 | end: |
| 1025 | if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions) { |
| 1026 | frame->width = avctx->width; |
| 1027 | frame->height = avctx->height; |
| 1028 | } |
| 1029 | |
| 1030 | return ret; |
| 1031 | } |
| 1032 | |
| 1033 | int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags) |
| 1034 | { |
| 1035 | int ret = get_buffer_internal(avctx, frame, flags); |
| 1036 | if (ret < 0) |
| 1037 | av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
| 1038 | return ret; |
| 1039 | } |
| 1040 | |
| 1041 | static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame) |
| 1042 | { |
| 1043 | AVFrame *tmp; |
| 1044 | int ret; |
| 1045 | |
| 1046 | av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO); |
| 1047 | |
| 1048 | if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) { |
| 1049 | av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n", |
| 1050 | frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt)); |
| 1051 | av_frame_unref(frame); |
| 1052 | } |
| 1053 | |
| 1054 | ff_init_buffer_info(avctx, frame); |
| 1055 | |
| 1056 | if (!frame->data[0]) |
| 1057 | return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); |
| 1058 | |
| 1059 | if (av_frame_is_writable(frame)) |
| 1060 | return ff_decode_frame_props(avctx, frame); |
| 1061 | |
| 1062 | tmp = av_frame_alloc(); |
| 1063 | if (!tmp) |
| 1064 | return AVERROR(ENOMEM); |
| 1065 | |
| 1066 | av_frame_move_ref(tmp, frame); |
| 1067 | |
| 1068 | ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); |
| 1069 | if (ret < 0) { |
| 1070 | av_frame_free(&tmp); |
| 1071 | return ret; |
| 1072 | } |
| 1073 | |
| 1074 | av_frame_copy(frame, tmp); |
| 1075 | av_frame_free(&tmp); |
| 1076 | |
| 1077 | return 0; |
| 1078 | } |
| 1079 | |
| 1080 | int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame) |
| 1081 | { |
| 1082 | int ret = reget_buffer_internal(avctx, frame); |
| 1083 | if (ret < 0) |
| 1084 | av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n"); |
| 1085 | return ret; |
| 1086 | } |
| 1087 | |
| 1088 | #if FF_API_GET_BUFFER |
| 1089 | void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic) |
| 1090 | { |
| 1091 | av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO); |
| 1092 | |
| 1093 | av_frame_unref(pic); |
| 1094 | } |
| 1095 | |
| 1096 | int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic) |
| 1097 | { |
| 1098 | av_assert0(0); |
| 1099 | return AVERROR_BUG; |
| 1100 | } |
| 1101 | #endif |
| 1102 | |
| 1103 | int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size) |
| 1104 | { |
| 1105 | int i; |
| 1106 | |
| 1107 | for (i = 0; i < count; i++) { |
| 1108 | int r = func(c, (char *)arg + i * size); |
| 1109 | if (ret) |
| 1110 | ret[i] = r; |
| 1111 | } |
| 1112 | return 0; |
| 1113 | } |
| 1114 | |
| 1115 | int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count) |
| 1116 | { |
| 1117 | int i; |
| 1118 | |
| 1119 | for (i = 0; i < count; i++) { |
| 1120 | int r = func(c, arg, i, 0); |
| 1121 | if (ret) |
| 1122 | ret[i] = r; |
| 1123 | } |
| 1124 | return 0; |
| 1125 | } |
| 1126 | |
| 1127 | enum AVPixelFormat avpriv_find_pix_fmt(const PixelFormatTag *tags, |
| 1128 | unsigned int fourcc) |
| 1129 | { |
| 1130 | while (tags->pix_fmt >= 0) { |
| 1131 | if (tags->fourcc == fourcc) |
| 1132 | return tags->pix_fmt; |
| 1133 | tags++; |
| 1134 | } |
| 1135 | return AV_PIX_FMT_NONE; |
| 1136 | } |
| 1137 | |
| 1138 | static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt) |
| 1139 | { |
| 1140 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); |
| 1141 | return desc->flags & AV_PIX_FMT_FLAG_HWACCEL; |
| 1142 | } |
| 1143 | |
| 1144 | enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt) |
| 1145 | { |
| 1146 | while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt)) |
| 1147 | ++fmt; |
| 1148 | return fmt[0]; |
| 1149 | } |
| 1150 | |
| 1151 | static AVHWAccel *find_hwaccel(enum AVCodecID codec_id, |
| 1152 | enum AVPixelFormat pix_fmt) |
| 1153 | { |
| 1154 | AVHWAccel *hwaccel = NULL; |
| 1155 | |
| 1156 | while ((hwaccel = av_hwaccel_next(hwaccel))) |
| 1157 | if (hwaccel->id == codec_id |
| 1158 | && hwaccel->pix_fmt == pix_fmt) |
| 1159 | return hwaccel; |
| 1160 | return NULL; |
| 1161 | } |
| 1162 | |
| 1163 | |
| 1164 | int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt) |
| 1165 | { |
| 1166 | const AVPixFmtDescriptor *desc; |
| 1167 | enum AVPixelFormat ret = avctx->get_format(avctx, fmt); |
| 1168 | |
| 1169 | desc = av_pix_fmt_desc_get(ret); |
| 1170 | if (!desc) |
| 1171 | return AV_PIX_FMT_NONE; |
| 1172 | |
| 1173 | if (avctx->hwaccel && avctx->hwaccel->uninit) |
| 1174 | avctx->hwaccel->uninit(avctx); |
| 1175 | av_freep(&avctx->internal->hwaccel_priv_data); |
| 1176 | avctx->hwaccel = NULL; |
| 1177 | |
| 1178 | if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL && |
| 1179 | !(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)) { |
| 1180 | AVHWAccel *hwaccel; |
| 1181 | int err; |
| 1182 | |
| 1183 | hwaccel = find_hwaccel(avctx->codec_id, ret); |
| 1184 | if (!hwaccel) { |
| 1185 | av_log(avctx, AV_LOG_ERROR, |
| 1186 | "Could not find an AVHWAccel for the pixel format: %s", |
| 1187 | desc->name); |
| 1188 | return AV_PIX_FMT_NONE; |
| 1189 | } |
| 1190 | |
| 1191 | if (hwaccel->priv_data_size) { |
| 1192 | avctx->internal->hwaccel_priv_data = av_mallocz(hwaccel->priv_data_size); |
| 1193 | if (!avctx->internal->hwaccel_priv_data) |
| 1194 | return AV_PIX_FMT_NONE; |
| 1195 | } |
| 1196 | |
| 1197 | if (hwaccel->init) { |
| 1198 | err = hwaccel->init(avctx); |
| 1199 | if (err < 0) { |
| 1200 | av_freep(&avctx->internal->hwaccel_priv_data); |
| 1201 | return AV_PIX_FMT_NONE; |
| 1202 | } |
| 1203 | } |
| 1204 | avctx->hwaccel = hwaccel; |
| 1205 | } |
| 1206 | |
| 1207 | return ret; |
| 1208 | } |
| 1209 | |
| 1210 | #if FF_API_AVFRAME_LAVC |
| 1211 | void avcodec_get_frame_defaults(AVFrame *frame) |
| 1212 | { |
| 1213 | #if LIBAVCODEC_VERSION_MAJOR >= 55 |
| 1214 | // extended_data should explicitly be freed when needed, this code is unsafe currently |
| 1215 | // also this is not compatible to the <55 ABI/API |
| 1216 | if (frame->extended_data != frame->data && 0) |
| 1217 | av_freep(&frame->extended_data); |
| 1218 | #endif |
| 1219 | |
| 1220 | memset(frame, 0, sizeof(AVFrame)); |
| 1221 | av_frame_unref(frame); |
| 1222 | } |
| 1223 | |
| 1224 | AVFrame *avcodec_alloc_frame(void) |
| 1225 | { |
| 1226 | return av_frame_alloc(); |
| 1227 | } |
| 1228 | |
| 1229 | void avcodec_free_frame(AVFrame **frame) |
| 1230 | { |
| 1231 | av_frame_free(frame); |
| 1232 | } |
| 1233 | #endif |
| 1234 | |
| 1235 | MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase) |
| 1236 | MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor) |
| 1237 | MAKE_ACCESSORS(AVCodecContext, codec, int, lowres) |
| 1238 | MAKE_ACCESSORS(AVCodecContext, codec, int, seek_preroll) |
| 1239 | MAKE_ACCESSORS(AVCodecContext, codec, uint16_t*, chroma_intra_matrix) |
| 1240 | |
| 1241 | int av_codec_get_max_lowres(const AVCodec *codec) |
| 1242 | { |
| 1243 | return codec->max_lowres; |
| 1244 | } |
| 1245 | |
| 1246 | static void avcodec_get_subtitle_defaults(AVSubtitle *sub) |
| 1247 | { |
| 1248 | memset(sub, 0, sizeof(*sub)); |
| 1249 | sub->pts = AV_NOPTS_VALUE; |
| 1250 | } |
| 1251 | |
| 1252 | static int get_bit_rate(AVCodecContext *ctx) |
| 1253 | { |
| 1254 | int bit_rate; |
| 1255 | int bits_per_sample; |
| 1256 | |
| 1257 | switch (ctx->codec_type) { |
| 1258 | case AVMEDIA_TYPE_VIDEO: |
| 1259 | case AVMEDIA_TYPE_DATA: |
| 1260 | case AVMEDIA_TYPE_SUBTITLE: |
| 1261 | case AVMEDIA_TYPE_ATTACHMENT: |
| 1262 | bit_rate = ctx->bit_rate; |
| 1263 | break; |
| 1264 | case AVMEDIA_TYPE_AUDIO: |
| 1265 | bits_per_sample = av_get_bits_per_sample(ctx->codec_id); |
| 1266 | bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate; |
| 1267 | break; |
| 1268 | default: |
| 1269 | bit_rate = 0; |
| 1270 | break; |
| 1271 | } |
| 1272 | return bit_rate; |
| 1273 | } |
| 1274 | |
| 1275 | int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) |
| 1276 | { |
| 1277 | int ret = 0; |
| 1278 | |
| 1279 | ff_unlock_avcodec(); |
| 1280 | |
| 1281 | ret = avcodec_open2(avctx, codec, options); |
| 1282 | |
| 1283 | ff_lock_avcodec(avctx); |
| 1284 | return ret; |
| 1285 | } |
| 1286 | |
| 1287 | int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) |
| 1288 | { |
| 1289 | int ret = 0; |
| 1290 | AVDictionary *tmp = NULL; |
| 1291 | |
| 1292 | if (avcodec_is_open(avctx)) |
| 1293 | return 0; |
| 1294 | |
| 1295 | if ((!codec && !avctx->codec)) { |
| 1296 | av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n"); |
| 1297 | return AVERROR(EINVAL); |
| 1298 | } |
| 1299 | if ((codec && avctx->codec && codec != avctx->codec)) { |
| 1300 | av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, " |
| 1301 | "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name); |
| 1302 | return AVERROR(EINVAL); |
| 1303 | } |
| 1304 | if (!codec) |
| 1305 | codec = avctx->codec; |
| 1306 | |
| 1307 | if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE) |
| 1308 | return AVERROR(EINVAL); |
| 1309 | |
| 1310 | if (options) |
| 1311 | av_dict_copy(&tmp, *options, 0); |
| 1312 | |
| 1313 | ret = ff_lock_avcodec(avctx); |
| 1314 | if (ret < 0) |
| 1315 | return ret; |
| 1316 | |
| 1317 | avctx->internal = av_mallocz(sizeof(AVCodecInternal)); |
| 1318 | if (!avctx->internal) { |
| 1319 | ret = AVERROR(ENOMEM); |
| 1320 | goto end; |
| 1321 | } |
| 1322 | |
| 1323 | avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool)); |
| 1324 | if (!avctx->internal->pool) { |
| 1325 | ret = AVERROR(ENOMEM); |
| 1326 | goto free_and_end; |
| 1327 | } |
| 1328 | |
| 1329 | avctx->internal->to_free = av_frame_alloc(); |
| 1330 | if (!avctx->internal->to_free) { |
| 1331 | ret = AVERROR(ENOMEM); |
| 1332 | goto free_and_end; |
| 1333 | } |
| 1334 | |
| 1335 | if (codec->priv_data_size > 0) { |
| 1336 | if (!avctx->priv_data) { |
| 1337 | avctx->priv_data = av_mallocz(codec->priv_data_size); |
| 1338 | if (!avctx->priv_data) { |
| 1339 | ret = AVERROR(ENOMEM); |
| 1340 | goto end; |
| 1341 | } |
| 1342 | if (codec->priv_class) { |
| 1343 | *(const AVClass **)avctx->priv_data = codec->priv_class; |
| 1344 | av_opt_set_defaults(avctx->priv_data); |
| 1345 | } |
| 1346 | } |
| 1347 | if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0) |
| 1348 | goto free_and_end; |
| 1349 | } else { |
| 1350 | avctx->priv_data = NULL; |
| 1351 | } |
| 1352 | if ((ret = av_opt_set_dict(avctx, &tmp)) < 0) |
| 1353 | goto free_and_end; |
| 1354 | |
| 1355 | // only call ff_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions |
| 1356 | if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && |
| 1357 | (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) { |
| 1358 | if (avctx->coded_width && avctx->coded_height) |
| 1359 | ret = ff_set_dimensions(avctx, avctx->coded_width, avctx->coded_height); |
| 1360 | else if (avctx->width && avctx->height) |
| 1361 | ret = ff_set_dimensions(avctx, avctx->width, avctx->height); |
| 1362 | if (ret < 0) |
| 1363 | goto free_and_end; |
| 1364 | } |
| 1365 | |
| 1366 | if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height) |
| 1367 | && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0 |
| 1368 | || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) { |
| 1369 | av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n"); |
| 1370 | ff_set_dimensions(avctx, 0, 0); |
| 1371 | } |
| 1372 | |
| 1373 | if (avctx->width > 0 && avctx->height > 0) { |
| 1374 | if (av_image_check_sar(avctx->width, avctx->height, |
| 1375 | avctx->sample_aspect_ratio) < 0) { |
| 1376 | av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n", |
| 1377 | avctx->sample_aspect_ratio.num, |
| 1378 | avctx->sample_aspect_ratio.den); |
| 1379 | avctx->sample_aspect_ratio = (AVRational){ 0, 1 }; |
| 1380 | } |
| 1381 | } |
| 1382 | |
| 1383 | /* if the decoder init function was already called previously, |
| 1384 | * free the already allocated subtitle_header before overwriting it */ |
| 1385 | if (av_codec_is_decoder(codec)) |
| 1386 | av_freep(&avctx->subtitle_header); |
| 1387 | |
| 1388 | if (avctx->channels > FF_SANE_NB_CHANNELS) { |
| 1389 | ret = AVERROR(EINVAL); |
| 1390 | goto free_and_end; |
| 1391 | } |
| 1392 | |
| 1393 | avctx->codec = codec; |
| 1394 | if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) && |
| 1395 | avctx->codec_id == AV_CODEC_ID_NONE) { |
| 1396 | avctx->codec_type = codec->type; |
| 1397 | avctx->codec_id = codec->id; |
| 1398 | } |
| 1399 | if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type |
| 1400 | && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) { |
| 1401 | av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n"); |
| 1402 | ret = AVERROR(EINVAL); |
| 1403 | goto free_and_end; |
| 1404 | } |
| 1405 | avctx->frame_number = 0; |
| 1406 | avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id); |
| 1407 | |
| 1408 | if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL && |
| 1409 | avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { |
| 1410 | const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder"; |
| 1411 | AVCodec *codec2; |
| 1412 | av_log(avctx, AV_LOG_ERROR, |
| 1413 | "The %s '%s' is experimental but experimental codecs are not enabled, " |
| 1414 | "add '-strict %d' if you want to use it.\n", |
| 1415 | codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL); |
| 1416 | codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id); |
| 1417 | if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL)) |
| 1418 | av_log(avctx, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n", |
| 1419 | codec_string, codec2->name); |
| 1420 | ret = AVERROR_EXPERIMENTAL; |
| 1421 | goto free_and_end; |
| 1422 | } |
| 1423 | |
| 1424 | if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && |
| 1425 | (!avctx->time_base.num || !avctx->time_base.den)) { |
| 1426 | avctx->time_base.num = 1; |
| 1427 | avctx->time_base.den = avctx->sample_rate; |
| 1428 | } |
| 1429 | |
| 1430 | if (!HAVE_THREADS) |
| 1431 | av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n"); |
| 1432 | |
| 1433 | if (CONFIG_FRAME_THREAD_ENCODER) { |
| 1434 | ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem |
| 1435 | ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL); |
| 1436 | ff_lock_avcodec(avctx); |
| 1437 | if (ret < 0) |
| 1438 | goto free_and_end; |
| 1439 | } |
| 1440 | |
| 1441 | if (HAVE_THREADS |
| 1442 | && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) { |
| 1443 | ret = ff_thread_init(avctx); |
| 1444 | if (ret < 0) { |
| 1445 | goto free_and_end; |
| 1446 | } |
| 1447 | } |
| 1448 | if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS)) |
| 1449 | avctx->thread_count = 1; |
| 1450 | |
| 1451 | if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) { |
| 1452 | av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n", |
| 1453 | avctx->codec->max_lowres); |
| 1454 | ret = AVERROR(EINVAL); |
| 1455 | goto free_and_end; |
| 1456 | } |
| 1457 | |
| 1458 | #if FF_API_VISMV |
| 1459 | if (avctx->debug_mv) |
| 1460 | av_log(avctx, AV_LOG_WARNING, "The 'vismv' option is deprecated, " |
| 1461 | "see the codecview filter instead.\n"); |
| 1462 | #endif |
| 1463 | |
| 1464 | if (av_codec_is_encoder(avctx->codec)) { |
| 1465 | int i; |
| 1466 | if (avctx->codec->sample_fmts) { |
| 1467 | for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) { |
| 1468 | if (avctx->sample_fmt == avctx->codec->sample_fmts[i]) |
| 1469 | break; |
| 1470 | if (avctx->channels == 1 && |
| 1471 | av_get_planar_sample_fmt(avctx->sample_fmt) == |
| 1472 | av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) { |
| 1473 | avctx->sample_fmt = avctx->codec->sample_fmts[i]; |
| 1474 | break; |
| 1475 | } |
| 1476 | } |
| 1477 | if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) { |
| 1478 | char buf[128]; |
| 1479 | snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt); |
| 1480 | av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n", |
| 1481 | (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf)); |
| 1482 | ret = AVERROR(EINVAL); |
| 1483 | goto free_and_end; |
| 1484 | } |
| 1485 | } |
| 1486 | if (avctx->codec->pix_fmts) { |
| 1487 | for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++) |
| 1488 | if (avctx->pix_fmt == avctx->codec->pix_fmts[i]) |
| 1489 | break; |
| 1490 | if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE |
| 1491 | && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG) |
| 1492 | && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) { |
| 1493 | char buf[128]; |
| 1494 | snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt); |
| 1495 | av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n", |
| 1496 | (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf)); |
| 1497 | ret = AVERROR(EINVAL); |
| 1498 | goto free_and_end; |
| 1499 | } |
| 1500 | } |
| 1501 | if (avctx->codec->supported_samplerates) { |
| 1502 | for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++) |
| 1503 | if (avctx->sample_rate == avctx->codec->supported_samplerates[i]) |
| 1504 | break; |
| 1505 | if (avctx->codec->supported_samplerates[i] == 0) { |
| 1506 | av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n", |
| 1507 | avctx->sample_rate); |
| 1508 | ret = AVERROR(EINVAL); |
| 1509 | goto free_and_end; |
| 1510 | } |
| 1511 | } |
| 1512 | if (avctx->codec->channel_layouts) { |
| 1513 | if (!avctx->channel_layout) { |
| 1514 | av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n"); |
| 1515 | } else { |
| 1516 | for (i = 0; avctx->codec->channel_layouts[i] != 0; i++) |
| 1517 | if (avctx->channel_layout == avctx->codec->channel_layouts[i]) |
| 1518 | break; |
| 1519 | if (avctx->codec->channel_layouts[i] == 0) { |
| 1520 | char buf[512]; |
| 1521 | av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); |
| 1522 | av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf); |
| 1523 | ret = AVERROR(EINVAL); |
| 1524 | goto free_and_end; |
| 1525 | } |
| 1526 | } |
| 1527 | } |
| 1528 | if (avctx->channel_layout && avctx->channels) { |
| 1529 | int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); |
| 1530 | if (channels != avctx->channels) { |
| 1531 | char buf[512]; |
| 1532 | av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); |
| 1533 | av_log(avctx, AV_LOG_ERROR, |
| 1534 | "Channel layout '%s' with %d channels does not match number of specified channels %d\n", |
| 1535 | buf, channels, avctx->channels); |
| 1536 | ret = AVERROR(EINVAL); |
| 1537 | goto free_and_end; |
| 1538 | } |
| 1539 | } else if (avctx->channel_layout) { |
| 1540 | avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout); |
| 1541 | } |
| 1542 | if(avctx->codec_type == AVMEDIA_TYPE_VIDEO) { |
| 1543 | if (avctx->width <= 0 || avctx->height <= 0) { |
| 1544 | av_log(avctx, AV_LOG_ERROR, "dimensions not set\n"); |
| 1545 | ret = AVERROR(EINVAL); |
| 1546 | goto free_and_end; |
| 1547 | } |
| 1548 | } |
| 1549 | if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO) |
| 1550 | && avctx->bit_rate>0 && avctx->bit_rate<1000) { |
| 1551 | av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate); |
| 1552 | } |
| 1553 | |
| 1554 | if (!avctx->rc_initial_buffer_occupancy) |
| 1555 | avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4; |
| 1556 | } |
| 1557 | |
| 1558 | avctx->pts_correction_num_faulty_pts = |
| 1559 | avctx->pts_correction_num_faulty_dts = 0; |
| 1560 | avctx->pts_correction_last_pts = |
| 1561 | avctx->pts_correction_last_dts = INT64_MIN; |
| 1562 | |
| 1563 | if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME) |
| 1564 | || avctx->internal->frame_thread_encoder)) { |
| 1565 | ret = avctx->codec->init(avctx); |
| 1566 | if (ret < 0) { |
| 1567 | goto free_and_end; |
| 1568 | } |
| 1569 | } |
| 1570 | |
| 1571 | ret=0; |
| 1572 | |
| 1573 | if (av_codec_is_decoder(avctx->codec)) { |
| 1574 | if (!avctx->bit_rate) |
| 1575 | avctx->bit_rate = get_bit_rate(avctx); |
| 1576 | /* validate channel layout from the decoder */ |
| 1577 | if (avctx->channel_layout) { |
| 1578 | int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); |
| 1579 | if (!avctx->channels) |
| 1580 | avctx->channels = channels; |
| 1581 | else if (channels != avctx->channels) { |
| 1582 | char buf[512]; |
| 1583 | av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); |
| 1584 | av_log(avctx, AV_LOG_WARNING, |
| 1585 | "Channel layout '%s' with %d channels does not match specified number of channels %d: " |
| 1586 | "ignoring specified channel layout\n", |
| 1587 | buf, channels, avctx->channels); |
| 1588 | avctx->channel_layout = 0; |
| 1589 | } |
| 1590 | } |
| 1591 | if (avctx->channels && avctx->channels < 0 || |
| 1592 | avctx->channels > FF_SANE_NB_CHANNELS) { |
| 1593 | ret = AVERROR(EINVAL); |
| 1594 | goto free_and_end; |
| 1595 | } |
| 1596 | if (avctx->sub_charenc) { |
| 1597 | if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) { |
| 1598 | av_log(avctx, AV_LOG_ERROR, "Character encoding is only " |
| 1599 | "supported with subtitles codecs\n"); |
| 1600 | ret = AVERROR(EINVAL); |
| 1601 | goto free_and_end; |
| 1602 | } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) { |
| 1603 | av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, " |
| 1604 | "subtitles character encoding will be ignored\n", |
| 1605 | avctx->codec_descriptor->name); |
| 1606 | avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING; |
| 1607 | } else { |
| 1608 | /* input character encoding is set for a text based subtitle |
| 1609 | * codec at this point */ |
| 1610 | if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC) |
| 1611 | avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER; |
| 1612 | |
| 1613 | if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) { |
| 1614 | #if CONFIG_ICONV |
| 1615 | iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc); |
| 1616 | if (cd == (iconv_t)-1) { |
| 1617 | av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context " |
| 1618 | "with input character encoding \"%s\"\n", avctx->sub_charenc); |
| 1619 | ret = AVERROR(errno); |
| 1620 | goto free_and_end; |
| 1621 | } |
| 1622 | iconv_close(cd); |
| 1623 | #else |
| 1624 | av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles " |
| 1625 | "conversion needs a libavcodec built with iconv support " |
| 1626 | "for this codec\n"); |
| 1627 | ret = AVERROR(ENOSYS); |
| 1628 | goto free_and_end; |
| 1629 | #endif |
| 1630 | } |
| 1631 | } |
| 1632 | } |
| 1633 | } |
| 1634 | end: |
| 1635 | ff_unlock_avcodec(); |
| 1636 | if (options) { |
| 1637 | av_dict_free(options); |
| 1638 | *options = tmp; |
| 1639 | } |
| 1640 | |
| 1641 | return ret; |
| 1642 | free_and_end: |
| 1643 | av_dict_free(&tmp); |
| 1644 | av_freep(&avctx->priv_data); |
| 1645 | if (avctx->internal) { |
| 1646 | av_frame_free(&avctx->internal->to_free); |
| 1647 | av_freep(&avctx->internal->pool); |
| 1648 | } |
| 1649 | av_freep(&avctx->internal); |
| 1650 | avctx->codec = NULL; |
| 1651 | goto end; |
| 1652 | } |
| 1653 | |
| 1654 | int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size) |
| 1655 | { |
| 1656 | if (avpkt->size < 0) { |
| 1657 | av_log(avctx, AV_LOG_ERROR, "Invalid negative user packet size %d\n", avpkt->size); |
| 1658 | return AVERROR(EINVAL); |
| 1659 | } |
| 1660 | if (size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) { |
| 1661 | av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n", |
| 1662 | size, INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE); |
| 1663 | return AVERROR(EINVAL); |
| 1664 | } |
| 1665 | |
| 1666 | if (avctx) { |
| 1667 | av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer); |
| 1668 | if (!avpkt->data || avpkt->size < size) { |
| 1669 | av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size); |
| 1670 | avpkt->data = avctx->internal->byte_buffer; |
| 1671 | avpkt->size = avctx->internal->byte_buffer_size; |
| 1672 | #if FF_API_DESTRUCT_PACKET |
| 1673 | FF_DISABLE_DEPRECATION_WARNINGS |
| 1674 | avpkt->destruct = NULL; |
| 1675 | FF_ENABLE_DEPRECATION_WARNINGS |
| 1676 | #endif |
| 1677 | } |
| 1678 | } |
| 1679 | |
| 1680 | if (avpkt->data) { |
| 1681 | AVBufferRef *buf = avpkt->buf; |
| 1682 | #if FF_API_DESTRUCT_PACKET |
| 1683 | FF_DISABLE_DEPRECATION_WARNINGS |
| 1684 | void *destruct = avpkt->destruct; |
| 1685 | FF_ENABLE_DEPRECATION_WARNINGS |
| 1686 | #endif |
| 1687 | |
| 1688 | if (avpkt->size < size) { |
| 1689 | av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %"PRId64")\n", avpkt->size, size); |
| 1690 | return AVERROR(EINVAL); |
| 1691 | } |
| 1692 | |
| 1693 | av_init_packet(avpkt); |
| 1694 | #if FF_API_DESTRUCT_PACKET |
| 1695 | FF_DISABLE_DEPRECATION_WARNINGS |
| 1696 | avpkt->destruct = destruct; |
| 1697 | FF_ENABLE_DEPRECATION_WARNINGS |
| 1698 | #endif |
| 1699 | avpkt->buf = buf; |
| 1700 | avpkt->size = size; |
| 1701 | return 0; |
| 1702 | } else { |
| 1703 | int ret = av_new_packet(avpkt, size); |
| 1704 | if (ret < 0) |
| 1705 | av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size); |
| 1706 | return ret; |
| 1707 | } |
| 1708 | } |
| 1709 | |
| 1710 | int ff_alloc_packet(AVPacket *avpkt, int size) |
| 1711 | { |
| 1712 | return ff_alloc_packet2(NULL, avpkt, size); |
| 1713 | } |
| 1714 | |
| 1715 | /** |
| 1716 | * Pad last frame with silence. |
| 1717 | */ |
| 1718 | static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src) |
| 1719 | { |
| 1720 | AVFrame *frame = NULL; |
| 1721 | int ret; |
| 1722 | |
| 1723 | if (!(frame = av_frame_alloc())) |
| 1724 | return AVERROR(ENOMEM); |
| 1725 | |
| 1726 | frame->format = src->format; |
| 1727 | frame->channel_layout = src->channel_layout; |
| 1728 | av_frame_set_channels(frame, av_frame_get_channels(src)); |
| 1729 | frame->nb_samples = s->frame_size; |
| 1730 | ret = av_frame_get_buffer(frame, 32); |
| 1731 | if (ret < 0) |
| 1732 | goto fail; |
| 1733 | |
| 1734 | ret = av_frame_copy_props(frame, src); |
| 1735 | if (ret < 0) |
| 1736 | goto fail; |
| 1737 | |
| 1738 | if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0, |
| 1739 | src->nb_samples, s->channels, s->sample_fmt)) < 0) |
| 1740 | goto fail; |
| 1741 | if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples, |
| 1742 | frame->nb_samples - src->nb_samples, |
| 1743 | s->channels, s->sample_fmt)) < 0) |
| 1744 | goto fail; |
| 1745 | |
| 1746 | *dst = frame; |
| 1747 | |
| 1748 | return 0; |
| 1749 | |
| 1750 | fail: |
| 1751 | av_frame_free(&frame); |
| 1752 | return ret; |
| 1753 | } |
| 1754 | |
| 1755 | int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx, |
| 1756 | AVPacket *avpkt, |
| 1757 | const AVFrame *frame, |
| 1758 | int *got_packet_ptr) |
| 1759 | { |
| 1760 | AVFrame *extended_frame = NULL; |
| 1761 | AVFrame *padded_frame = NULL; |
| 1762 | int ret; |
| 1763 | AVPacket user_pkt = *avpkt; |
| 1764 | int needs_realloc = !user_pkt.data; |
| 1765 | |
| 1766 | *got_packet_ptr = 0; |
| 1767 | |
| 1768 | if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) { |
| 1769 | av_free_packet(avpkt); |
| 1770 | av_init_packet(avpkt); |
| 1771 | return 0; |
| 1772 | } |
| 1773 | |
| 1774 | /* ensure that extended_data is properly set */ |
| 1775 | if (frame && !frame->extended_data) { |
| 1776 | if (av_sample_fmt_is_planar(avctx->sample_fmt) && |
| 1777 | avctx->channels > AV_NUM_DATA_POINTERS) { |
| 1778 | av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, " |
| 1779 | "with more than %d channels, but extended_data is not set.\n", |
| 1780 | AV_NUM_DATA_POINTERS); |
| 1781 | return AVERROR(EINVAL); |
| 1782 | } |
| 1783 | av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n"); |
| 1784 | |
| 1785 | extended_frame = av_frame_alloc(); |
| 1786 | if (!extended_frame) |
| 1787 | return AVERROR(ENOMEM); |
| 1788 | |
| 1789 | memcpy(extended_frame, frame, sizeof(AVFrame)); |
| 1790 | extended_frame->extended_data = extended_frame->data; |
| 1791 | frame = extended_frame; |
| 1792 | } |
| 1793 | |
| 1794 | /* check for valid frame size */ |
| 1795 | if (frame) { |
| 1796 | if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) { |
| 1797 | if (frame->nb_samples > avctx->frame_size) { |
| 1798 | av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n"); |
| 1799 | ret = AVERROR(EINVAL); |
| 1800 | goto end; |
| 1801 | } |
| 1802 | } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) { |
| 1803 | if (frame->nb_samples < avctx->frame_size && |
| 1804 | !avctx->internal->last_audio_frame) { |
| 1805 | ret = pad_last_frame(avctx, &padded_frame, frame); |
| 1806 | if (ret < 0) |
| 1807 | goto end; |
| 1808 | |
| 1809 | frame = padded_frame; |
| 1810 | avctx->internal->last_audio_frame = 1; |
| 1811 | } |
| 1812 | |
| 1813 | if (frame->nb_samples != avctx->frame_size) { |
| 1814 | av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size); |
| 1815 | ret = AVERROR(EINVAL); |
| 1816 | goto end; |
| 1817 | } |
| 1818 | } |
| 1819 | } |
| 1820 | |
| 1821 | ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); |
| 1822 | if (!ret) { |
| 1823 | if (*got_packet_ptr) { |
| 1824 | if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) { |
| 1825 | if (avpkt->pts == AV_NOPTS_VALUE) |
| 1826 | avpkt->pts = frame->pts; |
| 1827 | if (!avpkt->duration) |
| 1828 | avpkt->duration = ff_samples_to_time_base(avctx, |
| 1829 | frame->nb_samples); |
| 1830 | } |
| 1831 | avpkt->dts = avpkt->pts; |
| 1832 | } else { |
| 1833 | avpkt->size = 0; |
| 1834 | } |
| 1835 | } |
| 1836 | if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { |
| 1837 | needs_realloc = 0; |
| 1838 | if (user_pkt.data) { |
| 1839 | if (user_pkt.size >= avpkt->size) { |
| 1840 | memcpy(user_pkt.data, avpkt->data, avpkt->size); |
| 1841 | } else { |
| 1842 | av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); |
| 1843 | avpkt->size = user_pkt.size; |
| 1844 | ret = -1; |
| 1845 | } |
| 1846 | avpkt->buf = user_pkt.buf; |
| 1847 | avpkt->data = user_pkt.data; |
| 1848 | #if FF_API_DESTRUCT_PACKET |
| 1849 | FF_DISABLE_DEPRECATION_WARNINGS |
| 1850 | avpkt->destruct = user_pkt.destruct; |
| 1851 | FF_ENABLE_DEPRECATION_WARNINGS |
| 1852 | #endif |
| 1853 | } else { |
| 1854 | if (av_dup_packet(avpkt) < 0) { |
| 1855 | ret = AVERROR(ENOMEM); |
| 1856 | } |
| 1857 | } |
| 1858 | } |
| 1859 | |
| 1860 | if (!ret) { |
| 1861 | if (needs_realloc && avpkt->data) { |
| 1862 | ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 1863 | if (ret >= 0) |
| 1864 | avpkt->data = avpkt->buf->data; |
| 1865 | } |
| 1866 | |
| 1867 | avctx->frame_number++; |
| 1868 | } |
| 1869 | |
| 1870 | if (ret < 0 || !*got_packet_ptr) { |
| 1871 | av_free_packet(avpkt); |
| 1872 | av_init_packet(avpkt); |
| 1873 | goto end; |
| 1874 | } |
| 1875 | |
| 1876 | /* NOTE: if we add any audio encoders which output non-keyframe packets, |
| 1877 | * this needs to be moved to the encoders, but for now we can do it |
| 1878 | * here to simplify things */ |
| 1879 | avpkt->flags |= AV_PKT_FLAG_KEY; |
| 1880 | |
| 1881 | end: |
| 1882 | av_frame_free(&padded_frame); |
| 1883 | av_free(extended_frame); |
| 1884 | |
| 1885 | return ret; |
| 1886 | } |
| 1887 | |
| 1888 | #if FF_API_OLD_ENCODE_AUDIO |
| 1889 | int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, |
| 1890 | uint8_t *buf, int buf_size, |
| 1891 | const short *samples) |
| 1892 | { |
| 1893 | AVPacket pkt; |
| 1894 | AVFrame *frame; |
| 1895 | int ret, samples_size, got_packet; |
| 1896 | |
| 1897 | av_init_packet(&pkt); |
| 1898 | pkt.data = buf; |
| 1899 | pkt.size = buf_size; |
| 1900 | |
| 1901 | if (samples) { |
| 1902 | frame = av_frame_alloc(); |
| 1903 | if (!frame) |
| 1904 | return AVERROR(ENOMEM); |
| 1905 | |
| 1906 | if (avctx->frame_size) { |
| 1907 | frame->nb_samples = avctx->frame_size; |
| 1908 | } else { |
| 1909 | /* if frame_size is not set, the number of samples must be |
| 1910 | * calculated from the buffer size */ |
| 1911 | int64_t nb_samples; |
| 1912 | if (!av_get_bits_per_sample(avctx->codec_id)) { |
| 1913 | av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not " |
| 1914 | "support this codec\n"); |
| 1915 | av_frame_free(&frame); |
| 1916 | return AVERROR(EINVAL); |
| 1917 | } |
| 1918 | nb_samples = (int64_t)buf_size * 8 / |
| 1919 | (av_get_bits_per_sample(avctx->codec_id) * |
| 1920 | avctx->channels); |
| 1921 | if (nb_samples >= INT_MAX) { |
| 1922 | av_frame_free(&frame); |
| 1923 | return AVERROR(EINVAL); |
| 1924 | } |
| 1925 | frame->nb_samples = nb_samples; |
| 1926 | } |
| 1927 | |
| 1928 | /* it is assumed that the samples buffer is large enough based on the |
| 1929 | * relevant parameters */ |
| 1930 | samples_size = av_samples_get_buffer_size(NULL, avctx->channels, |
| 1931 | frame->nb_samples, |
| 1932 | avctx->sample_fmt, 1); |
| 1933 | if ((ret = avcodec_fill_audio_frame(frame, avctx->channels, |
| 1934 | avctx->sample_fmt, |
| 1935 | (const uint8_t *)samples, |
| 1936 | samples_size, 1)) < 0) { |
| 1937 | av_frame_free(&frame); |
| 1938 | return ret; |
| 1939 | } |
| 1940 | |
| 1941 | /* fabricate frame pts from sample count. |
| 1942 | * this is needed because the avcodec_encode_audio() API does not have |
| 1943 | * a way for the user to provide pts */ |
| 1944 | if (avctx->sample_rate && avctx->time_base.num) |
| 1945 | frame->pts = ff_samples_to_time_base(avctx, |
| 1946 | avctx->internal->sample_count); |
| 1947 | else |
| 1948 | frame->pts = AV_NOPTS_VALUE; |
| 1949 | avctx->internal->sample_count += frame->nb_samples; |
| 1950 | } else { |
| 1951 | frame = NULL; |
| 1952 | } |
| 1953 | |
| 1954 | got_packet = 0; |
| 1955 | ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet); |
| 1956 | if (!ret && got_packet && avctx->coded_frame) { |
| 1957 | avctx->coded_frame->pts = pkt.pts; |
| 1958 | avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY); |
| 1959 | } |
| 1960 | /* free any side data since we cannot return it */ |
| 1961 | av_packet_free_side_data(&pkt); |
| 1962 | |
| 1963 | if (frame && frame->extended_data != frame->data) |
| 1964 | av_freep(&frame->extended_data); |
| 1965 | |
| 1966 | av_frame_free(&frame); |
| 1967 | return ret ? ret : pkt.size; |
| 1968 | } |
| 1969 | |
| 1970 | #endif |
| 1971 | |
| 1972 | #if FF_API_OLD_ENCODE_VIDEO |
| 1973 | int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
| 1974 | const AVFrame *pict) |
| 1975 | { |
| 1976 | AVPacket pkt; |
| 1977 | int ret, got_packet = 0; |
| 1978 | |
| 1979 | if (buf_size < FF_MIN_BUFFER_SIZE) { |
| 1980 | av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n"); |
| 1981 | return -1; |
| 1982 | } |
| 1983 | |
| 1984 | av_init_packet(&pkt); |
| 1985 | pkt.data = buf; |
| 1986 | pkt.size = buf_size; |
| 1987 | |
| 1988 | ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet); |
| 1989 | if (!ret && got_packet && avctx->coded_frame) { |
| 1990 | avctx->coded_frame->pts = pkt.pts; |
| 1991 | avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY); |
| 1992 | } |
| 1993 | |
| 1994 | /* free any side data since we cannot return it */ |
| 1995 | if (pkt.side_data_elems > 0) { |
| 1996 | int i; |
| 1997 | for (i = 0; i < pkt.side_data_elems; i++) |
| 1998 | av_free(pkt.side_data[i].data); |
| 1999 | av_freep(&pkt.side_data); |
| 2000 | pkt.side_data_elems = 0; |
| 2001 | } |
| 2002 | |
| 2003 | return ret ? ret : pkt.size; |
| 2004 | } |
| 2005 | |
| 2006 | #endif |
| 2007 | |
| 2008 | int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx, |
| 2009 | AVPacket *avpkt, |
| 2010 | const AVFrame *frame, |
| 2011 | int *got_packet_ptr) |
| 2012 | { |
| 2013 | int ret; |
| 2014 | AVPacket user_pkt = *avpkt; |
| 2015 | int needs_realloc = !user_pkt.data; |
| 2016 | |
| 2017 | *got_packet_ptr = 0; |
| 2018 | |
| 2019 | if(CONFIG_FRAME_THREAD_ENCODER && |
| 2020 | avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME)) |
| 2021 | return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr); |
| 2022 | |
| 2023 | if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out) |
| 2024 | avctx->stats_out[0] = '\0'; |
| 2025 | |
| 2026 | if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) { |
| 2027 | av_free_packet(avpkt); |
| 2028 | av_init_packet(avpkt); |
| 2029 | avpkt->size = 0; |
| 2030 | return 0; |
| 2031 | } |
| 2032 | |
| 2033 | if (av_image_check_size(avctx->width, avctx->height, 0, avctx)) |
| 2034 | return AVERROR(EINVAL); |
| 2035 | |
| 2036 | av_assert0(avctx->codec->encode2); |
| 2037 | |
| 2038 | ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); |
| 2039 | av_assert0(ret <= 0); |
| 2040 | |
| 2041 | if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { |
| 2042 | needs_realloc = 0; |
| 2043 | if (user_pkt.data) { |
| 2044 | if (user_pkt.size >= avpkt->size) { |
| 2045 | memcpy(user_pkt.data, avpkt->data, avpkt->size); |
| 2046 | } else { |
| 2047 | av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); |
| 2048 | avpkt->size = user_pkt.size; |
| 2049 | ret = -1; |
| 2050 | } |
| 2051 | avpkt->buf = user_pkt.buf; |
| 2052 | avpkt->data = user_pkt.data; |
| 2053 | #if FF_API_DESTRUCT_PACKET |
| 2054 | FF_DISABLE_DEPRECATION_WARNINGS |
| 2055 | avpkt->destruct = user_pkt.destruct; |
| 2056 | FF_ENABLE_DEPRECATION_WARNINGS |
| 2057 | #endif |
| 2058 | } else { |
| 2059 | if (av_dup_packet(avpkt) < 0) { |
| 2060 | ret = AVERROR(ENOMEM); |
| 2061 | } |
| 2062 | } |
| 2063 | } |
| 2064 | |
| 2065 | if (!ret) { |
| 2066 | if (!*got_packet_ptr) |
| 2067 | avpkt->size = 0; |
| 2068 | else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) |
| 2069 | avpkt->pts = avpkt->dts = frame->pts; |
| 2070 | |
| 2071 | if (needs_realloc && avpkt->data) { |
| 2072 | ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE); |
| 2073 | if (ret >= 0) |
| 2074 | avpkt->data = avpkt->buf->data; |
| 2075 | } |
| 2076 | |
| 2077 | avctx->frame_number++; |
| 2078 | } |
| 2079 | |
| 2080 | if (ret < 0 || !*got_packet_ptr) |
| 2081 | av_free_packet(avpkt); |
| 2082 | else |
| 2083 | av_packet_merge_side_data(avpkt); |
| 2084 | |
| 2085 | emms_c(); |
| 2086 | return ret; |
| 2087 | } |
| 2088 | |
| 2089 | int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
| 2090 | const AVSubtitle *sub) |
| 2091 | { |
| 2092 | int ret; |
| 2093 | if (sub->start_display_time) { |
| 2094 | av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n"); |
| 2095 | return -1; |
| 2096 | } |
| 2097 | |
| 2098 | ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub); |
| 2099 | avctx->frame_number++; |
| 2100 | return ret; |
| 2101 | } |
| 2102 | |
| 2103 | /** |
| 2104 | * Attempt to guess proper monotonic timestamps for decoded video frames |
| 2105 | * which might have incorrect times. Input timestamps may wrap around, in |
| 2106 | * which case the output will as well. |
| 2107 | * |
| 2108 | * @param pts the pts field of the decoded AVPacket, as passed through |
| 2109 | * AVFrame.pkt_pts |
| 2110 | * @param dts the dts field of the decoded AVPacket |
| 2111 | * @return one of the input values, may be AV_NOPTS_VALUE |
| 2112 | */ |
| 2113 | static int64_t guess_correct_pts(AVCodecContext *ctx, |
| 2114 | int64_t reordered_pts, int64_t dts) |
| 2115 | { |
| 2116 | int64_t pts = AV_NOPTS_VALUE; |
| 2117 | |
| 2118 | if (dts != AV_NOPTS_VALUE) { |
| 2119 | ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts; |
| 2120 | ctx->pts_correction_last_dts = dts; |
| 2121 | } else if (reordered_pts != AV_NOPTS_VALUE) |
| 2122 | ctx->pts_correction_last_dts = reordered_pts; |
| 2123 | |
| 2124 | if (reordered_pts != AV_NOPTS_VALUE) { |
| 2125 | ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts; |
| 2126 | ctx->pts_correction_last_pts = reordered_pts; |
| 2127 | } else if(dts != AV_NOPTS_VALUE) |
| 2128 | ctx->pts_correction_last_pts = dts; |
| 2129 | |
| 2130 | if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE) |
| 2131 | && reordered_pts != AV_NOPTS_VALUE) |
| 2132 | pts = reordered_pts; |
| 2133 | else |
| 2134 | pts = dts; |
| 2135 | |
| 2136 | return pts; |
| 2137 | } |
| 2138 | |
| 2139 | static int apply_param_change(AVCodecContext *avctx, AVPacket *avpkt) |
| 2140 | { |
| 2141 | int size = 0, ret; |
| 2142 | const uint8_t *data; |
| 2143 | uint32_t flags; |
| 2144 | |
| 2145 | data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size); |
| 2146 | if (!data) |
| 2147 | return 0; |
| 2148 | |
| 2149 | if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) { |
| 2150 | av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter " |
| 2151 | "changes, but PARAM_CHANGE side data was sent to it.\n"); |
| 2152 | return AVERROR(EINVAL); |
| 2153 | } |
| 2154 | |
| 2155 | if (size < 4) |
| 2156 | goto fail; |
| 2157 | |
| 2158 | flags = bytestream_get_le32(&data); |
| 2159 | size -= 4; |
| 2160 | |
| 2161 | if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) { |
| 2162 | if (size < 4) |
| 2163 | goto fail; |
| 2164 | avctx->channels = bytestream_get_le32(&data); |
| 2165 | size -= 4; |
| 2166 | } |
| 2167 | if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) { |
| 2168 | if (size < 8) |
| 2169 | goto fail; |
| 2170 | avctx->channel_layout = bytestream_get_le64(&data); |
| 2171 | size -= 8; |
| 2172 | } |
| 2173 | if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) { |
| 2174 | if (size < 4) |
| 2175 | goto fail; |
| 2176 | avctx->sample_rate = bytestream_get_le32(&data); |
| 2177 | size -= 4; |
| 2178 | } |
| 2179 | if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) { |
| 2180 | if (size < 8) |
| 2181 | goto fail; |
| 2182 | avctx->width = bytestream_get_le32(&data); |
| 2183 | avctx->height = bytestream_get_le32(&data); |
| 2184 | size -= 8; |
| 2185 | ret = ff_set_dimensions(avctx, avctx->width, avctx->height); |
| 2186 | if (ret < 0) |
| 2187 | return ret; |
| 2188 | } |
| 2189 | |
| 2190 | return 0; |
| 2191 | fail: |
| 2192 | av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n"); |
| 2193 | return AVERROR_INVALIDDATA; |
| 2194 | } |
| 2195 | |
| 2196 | static int add_metadata_from_side_data(AVCodecContext *avctx, AVFrame *frame) |
| 2197 | { |
| 2198 | int size; |
| 2199 | const uint8_t *side_metadata; |
| 2200 | |
| 2201 | AVDictionary **frame_md = avpriv_frame_get_metadatap(frame); |
| 2202 | |
| 2203 | side_metadata = av_packet_get_side_data(avctx->internal->pkt, |
| 2204 | AV_PKT_DATA_STRINGS_METADATA, &size); |
| 2205 | return av_packet_unpack_dictionary(side_metadata, size, frame_md); |
| 2206 | } |
| 2207 | |
| 2208 | static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame) |
| 2209 | { |
| 2210 | int ret; |
| 2211 | |
| 2212 | /* move the original frame to our backup */ |
| 2213 | av_frame_unref(avci->to_free); |
| 2214 | av_frame_move_ref(avci->to_free, frame); |
| 2215 | |
| 2216 | /* now copy everything except the AVBufferRefs back |
| 2217 | * note that we make a COPY of the side data, so calling av_frame_free() on |
| 2218 | * the caller's frame will work properly */ |
| 2219 | ret = av_frame_copy_props(frame, avci->to_free); |
| 2220 | if (ret < 0) |
| 2221 | return ret; |
| 2222 | |
| 2223 | memcpy(frame->data, avci->to_free->data, sizeof(frame->data)); |
| 2224 | memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize)); |
| 2225 | if (avci->to_free->extended_data != avci->to_free->data) { |
| 2226 | int planes = av_frame_get_channels(avci->to_free); |
| 2227 | int size = planes * sizeof(*frame->extended_data); |
| 2228 | |
| 2229 | if (!size) { |
| 2230 | av_frame_unref(frame); |
| 2231 | return AVERROR_BUG; |
| 2232 | } |
| 2233 | |
| 2234 | frame->extended_data = av_malloc(size); |
| 2235 | if (!frame->extended_data) { |
| 2236 | av_frame_unref(frame); |
| 2237 | return AVERROR(ENOMEM); |
| 2238 | } |
| 2239 | memcpy(frame->extended_data, avci->to_free->extended_data, |
| 2240 | size); |
| 2241 | } else |
| 2242 | frame->extended_data = frame->data; |
| 2243 | |
| 2244 | frame->format = avci->to_free->format; |
| 2245 | frame->width = avci->to_free->width; |
| 2246 | frame->height = avci->to_free->height; |
| 2247 | frame->channel_layout = avci->to_free->channel_layout; |
| 2248 | frame->nb_samples = avci->to_free->nb_samples; |
| 2249 | av_frame_set_channels(frame, av_frame_get_channels(avci->to_free)); |
| 2250 | |
| 2251 | return 0; |
| 2252 | } |
| 2253 | |
| 2254 | int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, |
| 2255 | int *got_picture_ptr, |
| 2256 | const AVPacket *avpkt) |
| 2257 | { |
| 2258 | AVCodecInternal *avci = avctx->internal; |
| 2259 | int ret; |
| 2260 | // copy to ensure we do not change avpkt |
| 2261 | AVPacket tmp = *avpkt; |
| 2262 | |
| 2263 | if (!avctx->codec) |
| 2264 | return AVERROR(EINVAL); |
| 2265 | if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) { |
| 2266 | av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n"); |
| 2267 | return AVERROR(EINVAL); |
| 2268 | } |
| 2269 | |
| 2270 | *got_picture_ptr = 0; |
| 2271 | if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx)) |
| 2272 | return AVERROR(EINVAL); |
| 2273 | |
| 2274 | av_frame_unref(picture); |
| 2275 | |
| 2276 | if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) { |
| 2277 | int did_split = av_packet_split_side_data(&tmp); |
| 2278 | ret = apply_param_change(avctx, &tmp); |
| 2279 | if (ret < 0) { |
| 2280 | av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n"); |
| 2281 | if (avctx->err_recognition & AV_EF_EXPLODE) |
| 2282 | goto fail; |
| 2283 | } |
| 2284 | |
| 2285 | avctx->internal->pkt = &tmp; |
| 2286 | if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
| 2287 | ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr, |
| 2288 | &tmp); |
| 2289 | else { |
| 2290 | ret = avctx->codec->decode(avctx, picture, got_picture_ptr, |
| 2291 | &tmp); |
| 2292 | picture->pkt_dts = avpkt->dts; |
| 2293 | |
| 2294 | if(!avctx->has_b_frames){ |
| 2295 | av_frame_set_pkt_pos(picture, avpkt->pos); |
| 2296 | } |
| 2297 | //FIXME these should be under if(!avctx->has_b_frames) |
| 2298 | /* get_buffer is supposed to set frame parameters */ |
| 2299 | if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) { |
| 2300 | if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio; |
| 2301 | if (!picture->width) picture->width = avctx->width; |
| 2302 | if (!picture->height) picture->height = avctx->height; |
| 2303 | if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt; |
| 2304 | } |
| 2305 | } |
| 2306 | add_metadata_from_side_data(avctx, picture); |
| 2307 | |
| 2308 | fail: |
| 2309 | emms_c(); //needed to avoid an emms_c() call before every return; |
| 2310 | |
| 2311 | avctx->internal->pkt = NULL; |
| 2312 | if (did_split) { |
| 2313 | av_packet_free_side_data(&tmp); |
| 2314 | if(ret == tmp.size) |
| 2315 | ret = avpkt->size; |
| 2316 | } |
| 2317 | |
| 2318 | if (*got_picture_ptr) { |
| 2319 | if (!avctx->refcounted_frames) { |
| 2320 | int err = unrefcount_frame(avci, picture); |
| 2321 | if (err < 0) |
| 2322 | return err; |
| 2323 | } |
| 2324 | |
| 2325 | avctx->frame_number++; |
| 2326 | av_frame_set_best_effort_timestamp(picture, |
| 2327 | guess_correct_pts(avctx, |
| 2328 | picture->pkt_pts, |
| 2329 | picture->pkt_dts)); |
| 2330 | } else |
| 2331 | av_frame_unref(picture); |
| 2332 | } else |
| 2333 | ret = 0; |
| 2334 | |
| 2335 | /* many decoders assign whole AVFrames, thus overwriting extended_data; |
| 2336 | * make sure it's set correctly */ |
| 2337 | av_assert0(!picture->extended_data || picture->extended_data == picture->data); |
| 2338 | |
| 2339 | return ret; |
| 2340 | } |
| 2341 | |
| 2342 | #if FF_API_OLD_DECODE_AUDIO |
| 2343 | int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples, |
| 2344 | int *frame_size_ptr, |
| 2345 | AVPacket *avpkt) |
| 2346 | { |
| 2347 | AVFrame *frame = av_frame_alloc(); |
| 2348 | int ret, got_frame = 0; |
| 2349 | |
| 2350 | if (!frame) |
| 2351 | return AVERROR(ENOMEM); |
| 2352 | if (avctx->get_buffer != avcodec_default_get_buffer) { |
| 2353 | av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with" |
| 2354 | "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n"); |
| 2355 | av_log(avctx, AV_LOG_ERROR, "Please port your application to " |
| 2356 | "avcodec_decode_audio4()\n"); |
| 2357 | avctx->get_buffer = avcodec_default_get_buffer; |
| 2358 | avctx->release_buffer = avcodec_default_release_buffer; |
| 2359 | } |
| 2360 | |
| 2361 | ret = avcodec_decode_audio4(avctx, frame, &got_frame, avpkt); |
| 2362 | |
| 2363 | if (ret >= 0 && got_frame) { |
| 2364 | int ch, plane_size; |
| 2365 | int planar = av_sample_fmt_is_planar(avctx->sample_fmt); |
| 2366 | int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels, |
| 2367 | frame->nb_samples, |
| 2368 | avctx->sample_fmt, 1); |
| 2369 | if (*frame_size_ptr < data_size) { |
| 2370 | av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for " |
| 2371 | "the current frame (%d < %d)\n", *frame_size_ptr, data_size); |
| 2372 | av_frame_free(&frame); |
| 2373 | return AVERROR(EINVAL); |
| 2374 | } |
| 2375 | |
| 2376 | memcpy(samples, frame->extended_data[0], plane_size); |
| 2377 | |
| 2378 | if (planar && avctx->channels > 1) { |
| 2379 | uint8_t *out = ((uint8_t *)samples) + plane_size; |
| 2380 | for (ch = 1; ch < avctx->channels; ch++) { |
| 2381 | memcpy(out, frame->extended_data[ch], plane_size); |
| 2382 | out += plane_size; |
| 2383 | } |
| 2384 | } |
| 2385 | *frame_size_ptr = data_size; |
| 2386 | } else { |
| 2387 | *frame_size_ptr = 0; |
| 2388 | } |
| 2389 | av_frame_free(&frame); |
| 2390 | return ret; |
| 2391 | } |
| 2392 | |
| 2393 | #endif |
| 2394 | |
| 2395 | int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx, |
| 2396 | AVFrame *frame, |
| 2397 | int *got_frame_ptr, |
| 2398 | const AVPacket *avpkt) |
| 2399 | { |
| 2400 | AVCodecInternal *avci = avctx->internal; |
| 2401 | int ret = 0; |
| 2402 | |
| 2403 | *got_frame_ptr = 0; |
| 2404 | |
| 2405 | if (!avpkt->data && avpkt->size) { |
| 2406 | av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); |
| 2407 | return AVERROR(EINVAL); |
| 2408 | } |
| 2409 | if (!avctx->codec) |
| 2410 | return AVERROR(EINVAL); |
| 2411 | if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) { |
| 2412 | av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n"); |
| 2413 | return AVERROR(EINVAL); |
| 2414 | } |
| 2415 | |
| 2416 | av_frame_unref(frame); |
| 2417 | |
| 2418 | if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) { |
| 2419 | uint8_t *side; |
| 2420 | int side_size; |
| 2421 | uint32_t discard_padding = 0; |
| 2422 | // copy to ensure we do not change avpkt |
| 2423 | AVPacket tmp = *avpkt; |
| 2424 | int did_split = av_packet_split_side_data(&tmp); |
| 2425 | ret = apply_param_change(avctx, &tmp); |
| 2426 | if (ret < 0) { |
| 2427 | av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n"); |
| 2428 | if (avctx->err_recognition & AV_EF_EXPLODE) |
| 2429 | goto fail; |
| 2430 | } |
| 2431 | |
| 2432 | avctx->internal->pkt = &tmp; |
| 2433 | if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
| 2434 | ret = ff_thread_decode_frame(avctx, frame, got_frame_ptr, &tmp); |
| 2435 | else { |
| 2436 | ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp); |
| 2437 | frame->pkt_dts = avpkt->dts; |
| 2438 | } |
| 2439 | if (ret >= 0 && *got_frame_ptr) { |
| 2440 | add_metadata_from_side_data(avctx, frame); |
| 2441 | avctx->frame_number++; |
| 2442 | av_frame_set_best_effort_timestamp(frame, |
| 2443 | guess_correct_pts(avctx, |
| 2444 | frame->pkt_pts, |
| 2445 | frame->pkt_dts)); |
| 2446 | if (frame->format == AV_SAMPLE_FMT_NONE) |
| 2447 | frame->format = avctx->sample_fmt; |
| 2448 | if (!frame->channel_layout) |
| 2449 | frame->channel_layout = avctx->channel_layout; |
| 2450 | if (!av_frame_get_channels(frame)) |
| 2451 | av_frame_set_channels(frame, avctx->channels); |
| 2452 | if (!frame->sample_rate) |
| 2453 | frame->sample_rate = avctx->sample_rate; |
| 2454 | } |
| 2455 | |
| 2456 | side= av_packet_get_side_data(avctx->internal->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size); |
| 2457 | if(side && side_size>=10) { |
| 2458 | avctx->internal->skip_samples = AV_RL32(side); |
| 2459 | av_log(avctx, AV_LOG_DEBUG, "skip %d samples due to side data\n", |
| 2460 | avctx->internal->skip_samples); |
| 2461 | discard_padding = AV_RL32(side + 4); |
| 2462 | } |
| 2463 | if (avctx->internal->skip_samples && *got_frame_ptr) { |
| 2464 | if(frame->nb_samples <= avctx->internal->skip_samples){ |
| 2465 | *got_frame_ptr = 0; |
| 2466 | avctx->internal->skip_samples -= frame->nb_samples; |
| 2467 | av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n", |
| 2468 | avctx->internal->skip_samples); |
| 2469 | } else { |
| 2470 | av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples, |
| 2471 | frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format); |
| 2472 | if(avctx->pkt_timebase.num && avctx->sample_rate) { |
| 2473 | int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples, |
| 2474 | (AVRational){1, avctx->sample_rate}, |
| 2475 | avctx->pkt_timebase); |
| 2476 | if(frame->pkt_pts!=AV_NOPTS_VALUE) |
| 2477 | frame->pkt_pts += diff_ts; |
| 2478 | if(frame->pkt_dts!=AV_NOPTS_VALUE) |
| 2479 | frame->pkt_dts += diff_ts; |
| 2480 | if (av_frame_get_pkt_duration(frame) >= diff_ts) |
| 2481 | av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts); |
| 2482 | } else { |
| 2483 | av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n"); |
| 2484 | } |
| 2485 | av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n", |
| 2486 | avctx->internal->skip_samples, frame->nb_samples); |
| 2487 | frame->nb_samples -= avctx->internal->skip_samples; |
| 2488 | avctx->internal->skip_samples = 0; |
| 2489 | } |
| 2490 | } |
| 2491 | |
| 2492 | if (discard_padding > 0 && discard_padding <= frame->nb_samples && *got_frame_ptr) { |
| 2493 | if (discard_padding == frame->nb_samples) { |
| 2494 | *got_frame_ptr = 0; |
| 2495 | } else { |
| 2496 | if(avctx->pkt_timebase.num && avctx->sample_rate) { |
| 2497 | int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding, |
| 2498 | (AVRational){1, avctx->sample_rate}, |
| 2499 | avctx->pkt_timebase); |
| 2500 | if (av_frame_get_pkt_duration(frame) >= diff_ts) |
| 2501 | av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts); |
| 2502 | } else { |
| 2503 | av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n"); |
| 2504 | } |
| 2505 | av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n", |
| 2506 | discard_padding, frame->nb_samples); |
| 2507 | frame->nb_samples -= discard_padding; |
| 2508 | } |
| 2509 | } |
| 2510 | fail: |
| 2511 | avctx->internal->pkt = NULL; |
| 2512 | if (did_split) { |
| 2513 | av_packet_free_side_data(&tmp); |
| 2514 | if(ret == tmp.size) |
| 2515 | ret = avpkt->size; |
| 2516 | } |
| 2517 | |
| 2518 | if (ret >= 0 && *got_frame_ptr) { |
| 2519 | if (!avctx->refcounted_frames) { |
| 2520 | int err = unrefcount_frame(avci, frame); |
| 2521 | if (err < 0) |
| 2522 | return err; |
| 2523 | } |
| 2524 | } else |
| 2525 | av_frame_unref(frame); |
| 2526 | } |
| 2527 | |
| 2528 | return ret; |
| 2529 | } |
| 2530 | |
| 2531 | #define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */ |
| 2532 | static int recode_subtitle(AVCodecContext *avctx, |
| 2533 | AVPacket *outpkt, const AVPacket *inpkt) |
| 2534 | { |
| 2535 | #if CONFIG_ICONV |
| 2536 | iconv_t cd = (iconv_t)-1; |
| 2537 | int ret = 0; |
| 2538 | char *inb, *outb; |
| 2539 | size_t inl, outl; |
| 2540 | AVPacket tmp; |
| 2541 | #endif |
| 2542 | |
| 2543 | if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0) |
| 2544 | return 0; |
| 2545 | |
| 2546 | #if CONFIG_ICONV |
| 2547 | cd = iconv_open("UTF-8", avctx->sub_charenc); |
| 2548 | av_assert0(cd != (iconv_t)-1); |
| 2549 | |
| 2550 | inb = inpkt->data; |
| 2551 | inl = inpkt->size; |
| 2552 | |
| 2553 | if (inl >= INT_MAX / UTF8_MAX_BYTES - FF_INPUT_BUFFER_PADDING_SIZE) { |
| 2554 | av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n"); |
| 2555 | ret = AVERROR(ENOMEM); |
| 2556 | goto end; |
| 2557 | } |
| 2558 | |
| 2559 | ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES); |
| 2560 | if (ret < 0) |
| 2561 | goto end; |
| 2562 | outpkt->buf = tmp.buf; |
| 2563 | outpkt->data = tmp.data; |
| 2564 | outpkt->size = tmp.size; |
| 2565 | outb = outpkt->data; |
| 2566 | outl = outpkt->size; |
| 2567 | |
| 2568 | if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 || |
| 2569 | iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 || |
| 2570 | outl >= outpkt->size || inl != 0) { |
| 2571 | av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" " |
| 2572 | "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc); |
| 2573 | av_free_packet(&tmp); |
| 2574 | ret = AVERROR(errno); |
| 2575 | goto end; |
| 2576 | } |
| 2577 | outpkt->size -= outl; |
| 2578 | memset(outpkt->data + outpkt->size, 0, outl); |
| 2579 | |
| 2580 | end: |
| 2581 | if (cd != (iconv_t)-1) |
| 2582 | iconv_close(cd); |
| 2583 | return ret; |
| 2584 | #else |
| 2585 | av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv"); |
| 2586 | return AVERROR(EINVAL); |
| 2587 | #endif |
| 2588 | } |
| 2589 | |
| 2590 | static int utf8_check(const uint8_t *str) |
| 2591 | { |
| 2592 | const uint8_t *byte; |
| 2593 | uint32_t codepoint, min; |
| 2594 | |
| 2595 | while (*str) { |
| 2596 | byte = str; |
| 2597 | GET_UTF8(codepoint, *(byte++), return 0;); |
| 2598 | min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 : |
| 2599 | 1 << (5 * (byte - str) - 4); |
| 2600 | if (codepoint < min || codepoint >= 0x110000 || |
| 2601 | codepoint == 0xFFFE /* BOM */ || |
| 2602 | codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */) |
| 2603 | return 0; |
| 2604 | str = byte; |
| 2605 | } |
| 2606 | return 1; |
| 2607 | } |
| 2608 | |
| 2609 | int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, |
| 2610 | int *got_sub_ptr, |
| 2611 | AVPacket *avpkt) |
| 2612 | { |
| 2613 | int i, ret = 0; |
| 2614 | |
| 2615 | if (!avpkt->data && avpkt->size) { |
| 2616 | av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); |
| 2617 | return AVERROR(EINVAL); |
| 2618 | } |
| 2619 | if (!avctx->codec) |
| 2620 | return AVERROR(EINVAL); |
| 2621 | if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) { |
| 2622 | av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n"); |
| 2623 | return AVERROR(EINVAL); |
| 2624 | } |
| 2625 | |
| 2626 | *got_sub_ptr = 0; |
| 2627 | avcodec_get_subtitle_defaults(sub); |
| 2628 | |
| 2629 | if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) { |
| 2630 | AVPacket pkt_recoded; |
| 2631 | AVPacket tmp = *avpkt; |
| 2632 | int did_split = av_packet_split_side_data(&tmp); |
| 2633 | //apply_param_change(avctx, &tmp); |
| 2634 | |
| 2635 | if (did_split) { |
| 2636 | /* FFMIN() prevents overflow in case the packet wasn't allocated with |
| 2637 | * proper padding. |
| 2638 | * If the side data is smaller than the buffer padding size, the |
| 2639 | * remaining bytes should have already been filled with zeros by the |
| 2640 | * original packet allocation anyway. */ |
| 2641 | memset(tmp.data + tmp.size, 0, |
| 2642 | FFMIN(avpkt->size - tmp.size, FF_INPUT_BUFFER_PADDING_SIZE)); |
| 2643 | } |
| 2644 | |
| 2645 | pkt_recoded = tmp; |
| 2646 | ret = recode_subtitle(avctx, &pkt_recoded, &tmp); |
| 2647 | if (ret < 0) { |
| 2648 | *got_sub_ptr = 0; |
| 2649 | } else { |
| 2650 | avctx->internal->pkt = &pkt_recoded; |
| 2651 | |
| 2652 | if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE) |
| 2653 | sub->pts = av_rescale_q(avpkt->pts, |
| 2654 | avctx->pkt_timebase, AV_TIME_BASE_Q); |
| 2655 | ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded); |
| 2656 | av_assert1((ret >= 0) >= !!*got_sub_ptr && |
| 2657 | !!*got_sub_ptr >= !!sub->num_rects); |
| 2658 | |
| 2659 | if (sub->num_rects && !sub->end_display_time && avpkt->duration && |
| 2660 | avctx->pkt_timebase.num) { |
| 2661 | AVRational ms = { 1, 1000 }; |
| 2662 | sub->end_display_time = av_rescale_q(avpkt->duration, |
| 2663 | avctx->pkt_timebase, ms); |
| 2664 | } |
| 2665 | |
| 2666 | for (i = 0; i < sub->num_rects; i++) { |
| 2667 | if (sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) { |
| 2668 | av_log(avctx, AV_LOG_ERROR, |
| 2669 | "Invalid UTF-8 in decoded subtitles text; " |
| 2670 | "maybe missing -sub_charenc option\n"); |
| 2671 | avsubtitle_free(sub); |
| 2672 | return AVERROR_INVALIDDATA; |
| 2673 | } |
| 2674 | } |
| 2675 | |
| 2676 | if (tmp.data != pkt_recoded.data) { // did we recode? |
| 2677 | /* prevent from destroying side data from original packet */ |
| 2678 | pkt_recoded.side_data = NULL; |
| 2679 | pkt_recoded.side_data_elems = 0; |
| 2680 | |
| 2681 | av_free_packet(&pkt_recoded); |
| 2682 | } |
| 2683 | if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) |
| 2684 | sub->format = 0; |
| 2685 | else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB) |
| 2686 | sub->format = 1; |
| 2687 | avctx->internal->pkt = NULL; |
| 2688 | } |
| 2689 | |
| 2690 | if (did_split) { |
| 2691 | av_packet_free_side_data(&tmp); |
| 2692 | if(ret == tmp.size) |
| 2693 | ret = avpkt->size; |
| 2694 | } |
| 2695 | |
| 2696 | if (*got_sub_ptr) |
| 2697 | avctx->frame_number++; |
| 2698 | } |
| 2699 | |
| 2700 | return ret; |
| 2701 | } |
| 2702 | |
| 2703 | void avsubtitle_free(AVSubtitle *sub) |
| 2704 | { |
| 2705 | int i; |
| 2706 | |
| 2707 | for (i = 0; i < sub->num_rects; i++) { |
| 2708 | av_freep(&sub->rects[i]->pict.data[0]); |
| 2709 | av_freep(&sub->rects[i]->pict.data[1]); |
| 2710 | av_freep(&sub->rects[i]->pict.data[2]); |
| 2711 | av_freep(&sub->rects[i]->pict.data[3]); |
| 2712 | av_freep(&sub->rects[i]->text); |
| 2713 | av_freep(&sub->rects[i]->ass); |
| 2714 | av_freep(&sub->rects[i]); |
| 2715 | } |
| 2716 | |
| 2717 | av_freep(&sub->rects); |
| 2718 | |
| 2719 | memset(sub, 0, sizeof(AVSubtitle)); |
| 2720 | } |
| 2721 | |
| 2722 | av_cold int avcodec_close(AVCodecContext *avctx) |
| 2723 | { |
| 2724 | if (!avctx) |
| 2725 | return 0; |
| 2726 | |
| 2727 | if (avcodec_is_open(avctx)) { |
| 2728 | FramePool *pool = avctx->internal->pool; |
| 2729 | int i; |
| 2730 | if (CONFIG_FRAME_THREAD_ENCODER && |
| 2731 | avctx->internal->frame_thread_encoder && avctx->thread_count > 1) { |
| 2732 | ff_frame_thread_encoder_free(avctx); |
| 2733 | } |
| 2734 | if (HAVE_THREADS && avctx->internal->thread_ctx) |
| 2735 | ff_thread_free(avctx); |
| 2736 | if (avctx->codec && avctx->codec->close) |
| 2737 | avctx->codec->close(avctx); |
| 2738 | avctx->coded_frame = NULL; |
| 2739 | avctx->internal->byte_buffer_size = 0; |
| 2740 | av_freep(&avctx->internal->byte_buffer); |
| 2741 | av_frame_free(&avctx->internal->to_free); |
| 2742 | for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++) |
| 2743 | av_buffer_pool_uninit(&pool->pools[i]); |
| 2744 | av_freep(&avctx->internal->pool); |
| 2745 | |
| 2746 | if (avctx->hwaccel && avctx->hwaccel->uninit) |
| 2747 | avctx->hwaccel->uninit(avctx); |
| 2748 | av_freep(&avctx->internal->hwaccel_priv_data); |
| 2749 | |
| 2750 | av_freep(&avctx->internal); |
| 2751 | } |
| 2752 | |
| 2753 | if (avctx->priv_data && avctx->codec && avctx->codec->priv_class) |
| 2754 | av_opt_free(avctx->priv_data); |
| 2755 | av_opt_free(avctx); |
| 2756 | av_freep(&avctx->priv_data); |
| 2757 | if (av_codec_is_encoder(avctx->codec)) |
| 2758 | av_freep(&avctx->extradata); |
| 2759 | avctx->codec = NULL; |
| 2760 | avctx->active_thread_type = 0; |
| 2761 | |
| 2762 | return 0; |
| 2763 | } |
| 2764 | |
| 2765 | static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id) |
| 2766 | { |
| 2767 | switch(id){ |
| 2768 | //This is for future deprecatec codec ids, its empty since |
| 2769 | //last major bump but will fill up again over time, please don't remove it |
| 2770 | // case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO; |
| 2771 | case AV_CODEC_ID_BRENDER_PIX_DEPRECATED : return AV_CODEC_ID_BRENDER_PIX; |
| 2772 | case AV_CODEC_ID_OPUS_DEPRECATED : return AV_CODEC_ID_OPUS; |
| 2773 | case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK; |
| 2774 | case AV_CODEC_ID_PAF_AUDIO_DEPRECATED : return AV_CODEC_ID_PAF_AUDIO; |
| 2775 | case AV_CODEC_ID_PCM_S24LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S24LE_PLANAR; |
| 2776 | case AV_CODEC_ID_PCM_S32LE_PLANAR_DEPRECATED : return AV_CODEC_ID_PCM_S32LE_PLANAR; |
| 2777 | case AV_CODEC_ID_ADPCM_VIMA_DEPRECATED : return AV_CODEC_ID_ADPCM_VIMA; |
| 2778 | case AV_CODEC_ID_ESCAPE130_DEPRECATED : return AV_CODEC_ID_ESCAPE130; |
| 2779 | case AV_CODEC_ID_EXR_DEPRECATED : return AV_CODEC_ID_EXR; |
| 2780 | case AV_CODEC_ID_G2M_DEPRECATED : return AV_CODEC_ID_G2M; |
| 2781 | case AV_CODEC_ID_PAF_VIDEO_DEPRECATED : return AV_CODEC_ID_PAF_VIDEO; |
| 2782 | case AV_CODEC_ID_WEBP_DEPRECATED : return AV_CODEC_ID_WEBP; |
| 2783 | case AV_CODEC_ID_HEVC_DEPRECATED : return AV_CODEC_ID_HEVC; |
| 2784 | case AV_CODEC_ID_MVC1_DEPRECATED : return AV_CODEC_ID_MVC1; |
| 2785 | case AV_CODEC_ID_MVC2_DEPRECATED : return AV_CODEC_ID_MVC2; |
| 2786 | case AV_CODEC_ID_SANM_DEPRECATED : return AV_CODEC_ID_SANM; |
| 2787 | case AV_CODEC_ID_SGIRLE_DEPRECATED : return AV_CODEC_ID_SGIRLE; |
| 2788 | case AV_CODEC_ID_VP7_DEPRECATED : return AV_CODEC_ID_VP7; |
| 2789 | default : return id; |
| 2790 | } |
| 2791 | } |
| 2792 | |
| 2793 | static AVCodec *find_encdec(enum AVCodecID id, int encoder) |
| 2794 | { |
| 2795 | AVCodec *p, *experimental = NULL; |
| 2796 | p = first_avcodec; |
| 2797 | id= remap_deprecated_codec_id(id); |
| 2798 | while (p) { |
| 2799 | if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) && |
| 2800 | p->id == id) { |
| 2801 | if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) { |
| 2802 | experimental = p; |
| 2803 | } else |
| 2804 | return p; |
| 2805 | } |
| 2806 | p = p->next; |
| 2807 | } |
| 2808 | return experimental; |
| 2809 | } |
| 2810 | |
| 2811 | AVCodec *avcodec_find_encoder(enum AVCodecID id) |
| 2812 | { |
| 2813 | return find_encdec(id, 1); |
| 2814 | } |
| 2815 | |
| 2816 | AVCodec *avcodec_find_encoder_by_name(const char *name) |
| 2817 | { |
| 2818 | AVCodec *p; |
| 2819 | if (!name) |
| 2820 | return NULL; |
| 2821 | p = first_avcodec; |
| 2822 | while (p) { |
| 2823 | if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0) |
| 2824 | return p; |
| 2825 | p = p->next; |
| 2826 | } |
| 2827 | return NULL; |
| 2828 | } |
| 2829 | |
| 2830 | AVCodec *avcodec_find_decoder(enum AVCodecID id) |
| 2831 | { |
| 2832 | return find_encdec(id, 0); |
| 2833 | } |
| 2834 | |
| 2835 | AVCodec *avcodec_find_decoder_by_name(const char *name) |
| 2836 | { |
| 2837 | AVCodec *p; |
| 2838 | if (!name) |
| 2839 | return NULL; |
| 2840 | p = first_avcodec; |
| 2841 | while (p) { |
| 2842 | if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0) |
| 2843 | return p; |
| 2844 | p = p->next; |
| 2845 | } |
| 2846 | return NULL; |
| 2847 | } |
| 2848 | |
| 2849 | const char *avcodec_get_name(enum AVCodecID id) |
| 2850 | { |
| 2851 | const AVCodecDescriptor *cd; |
| 2852 | AVCodec *codec; |
| 2853 | |
| 2854 | if (id == AV_CODEC_ID_NONE) |
| 2855 | return "none"; |
| 2856 | cd = avcodec_descriptor_get(id); |
| 2857 | if (cd) |
| 2858 | return cd->name; |
| 2859 | av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id); |
| 2860 | codec = avcodec_find_decoder(id); |
| 2861 | if (codec) |
| 2862 | return codec->name; |
| 2863 | codec = avcodec_find_encoder(id); |
| 2864 | if (codec) |
| 2865 | return codec->name; |
| 2866 | return "unknown_codec"; |
| 2867 | } |
| 2868 | |
| 2869 | size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag) |
| 2870 | { |
| 2871 | int i, len, ret = 0; |
| 2872 | |
| 2873 | #define TAG_PRINT(x) \ |
| 2874 | (((x) >= '0' && (x) <= '9') || \ |
| 2875 | ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \ |
| 2876 | ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_')) |
| 2877 | |
| 2878 | for (i = 0; i < 4; i++) { |
| 2879 | len = snprintf(buf, buf_size, |
| 2880 | TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF); |
| 2881 | buf += len; |
| 2882 | buf_size = buf_size > len ? buf_size - len : 0; |
| 2883 | ret += len; |
| 2884 | codec_tag >>= 8; |
| 2885 | } |
| 2886 | return ret; |
| 2887 | } |
| 2888 | |
| 2889 | void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode) |
| 2890 | { |
| 2891 | const char *codec_type; |
| 2892 | const char *codec_name; |
| 2893 | const char *profile = NULL; |
| 2894 | const AVCodec *p; |
| 2895 | int bitrate; |
| 2896 | AVRational display_aspect_ratio; |
| 2897 | |
| 2898 | if (!buf || buf_size <= 0) |
| 2899 | return; |
| 2900 | codec_type = av_get_media_type_string(enc->codec_type); |
| 2901 | codec_name = avcodec_get_name(enc->codec_id); |
| 2902 | if (enc->profile != FF_PROFILE_UNKNOWN) { |
| 2903 | if (enc->codec) |
| 2904 | p = enc->codec; |
| 2905 | else |
| 2906 | p = encode ? avcodec_find_encoder(enc->codec_id) : |
| 2907 | avcodec_find_decoder(enc->codec_id); |
| 2908 | if (p) |
| 2909 | profile = av_get_profile_name(p, enc->profile); |
| 2910 | } |
| 2911 | |
| 2912 | snprintf(buf, buf_size, "%s: %s", codec_type ? codec_type : "unknown", |
| 2913 | codec_name); |
| 2914 | buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */ |
| 2915 | |
| 2916 | if (enc->codec && strcmp(enc->codec->name, codec_name)) |
| 2917 | snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", enc->codec->name); |
| 2918 | |
| 2919 | if (profile) |
| 2920 | snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile); |
| 2921 | if (enc->codec_tag) { |
| 2922 | char tag_buf[32]; |
| 2923 | av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag); |
| 2924 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2925 | " (%s / 0x%04X)", tag_buf, enc->codec_tag); |
| 2926 | } |
| 2927 | |
| 2928 | switch (enc->codec_type) { |
| 2929 | case AVMEDIA_TYPE_VIDEO: |
| 2930 | if (enc->pix_fmt != AV_PIX_FMT_NONE) { |
| 2931 | char detail[256] = "("; |
| 2932 | const char *colorspace_name; |
| 2933 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2934 | ", %s", |
| 2935 | av_get_pix_fmt_name(enc->pix_fmt)); |
| 2936 | if (enc->bits_per_raw_sample && |
| 2937 | enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1) |
| 2938 | av_strlcatf(detail, sizeof(detail), "%d bpc, ", enc->bits_per_raw_sample); |
| 2939 | if (enc->color_range != AVCOL_RANGE_UNSPECIFIED) |
| 2940 | av_strlcatf(detail, sizeof(detail), |
| 2941 | enc->color_range == AVCOL_RANGE_MPEG ? "tv, ": "pc, "); |
| 2942 | |
| 2943 | colorspace_name = av_get_colorspace_name(enc->colorspace); |
| 2944 | if (colorspace_name) |
| 2945 | av_strlcatf(detail, sizeof(detail), "%s, ", colorspace_name); |
| 2946 | |
| 2947 | if (strlen(detail) > 1) { |
| 2948 | detail[strlen(detail) - 2] = 0; |
| 2949 | av_strlcatf(buf, buf_size, "%s)", detail); |
| 2950 | } |
| 2951 | } |
| 2952 | if (enc->width) { |
| 2953 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2954 | ", %dx%d", |
| 2955 | enc->width, enc->height); |
| 2956 | if (enc->sample_aspect_ratio.num) { |
| 2957 | av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, |
| 2958 | enc->width * enc->sample_aspect_ratio.num, |
| 2959 | enc->height * enc->sample_aspect_ratio.den, |
| 2960 | 1024 * 1024); |
| 2961 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2962 | " [SAR %d:%d DAR %d:%d]", |
| 2963 | enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den, |
| 2964 | display_aspect_ratio.num, display_aspect_ratio.den); |
| 2965 | } |
| 2966 | if (av_log_get_level() >= AV_LOG_DEBUG) { |
| 2967 | int g = av_gcd(enc->time_base.num, enc->time_base.den); |
| 2968 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2969 | ", %d/%d", |
| 2970 | enc->time_base.num / g, enc->time_base.den / g); |
| 2971 | } |
| 2972 | } |
| 2973 | if (encode) { |
| 2974 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2975 | ", q=%d-%d", enc->qmin, enc->qmax); |
| 2976 | } |
| 2977 | break; |
| 2978 | case AVMEDIA_TYPE_AUDIO: |
| 2979 | if (enc->sample_rate) { |
| 2980 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2981 | ", %d Hz", enc->sample_rate); |
| 2982 | } |
| 2983 | av_strlcat(buf, ", ", buf_size); |
| 2984 | av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout); |
| 2985 | if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) { |
| 2986 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2987 | ", %s", av_get_sample_fmt_name(enc->sample_fmt)); |
| 2988 | } |
| 2989 | if ( enc->bits_per_raw_sample > 0 |
| 2990 | && enc->bits_per_raw_sample != av_get_bytes_per_sample(enc->sample_fmt) * 8) |
| 2991 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2992 | " (%d bit)", enc->bits_per_raw_sample); |
| 2993 | break; |
| 2994 | case AVMEDIA_TYPE_DATA: |
| 2995 | if (av_log_get_level() >= AV_LOG_DEBUG) { |
| 2996 | int g = av_gcd(enc->time_base.num, enc->time_base.den); |
| 2997 | if (g) |
| 2998 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 2999 | ", %d/%d", |
| 3000 | enc->time_base.num / g, enc->time_base.den / g); |
| 3001 | } |
| 3002 | break; |
| 3003 | case AVMEDIA_TYPE_SUBTITLE: |
| 3004 | if (enc->width) |
| 3005 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 3006 | ", %dx%d", enc->width, enc->height); |
| 3007 | break; |
| 3008 | default: |
| 3009 | return; |
| 3010 | } |
| 3011 | if (encode) { |
| 3012 | if (enc->flags & CODEC_FLAG_PASS1) |
| 3013 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 3014 | ", pass 1"); |
| 3015 | if (enc->flags & CODEC_FLAG_PASS2) |
| 3016 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 3017 | ", pass 2"); |
| 3018 | } |
| 3019 | bitrate = get_bit_rate(enc); |
| 3020 | if (bitrate != 0) { |
| 3021 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 3022 | ", %d kb/s", bitrate / 1000); |
| 3023 | } else if (enc->rc_max_rate > 0) { |
| 3024 | snprintf(buf + strlen(buf), buf_size - strlen(buf), |
| 3025 | ", max. %d kb/s", enc->rc_max_rate / 1000); |
| 3026 | } |
| 3027 | } |
| 3028 | |
| 3029 | const char *av_get_profile_name(const AVCodec *codec, int profile) |
| 3030 | { |
| 3031 | const AVProfile *p; |
| 3032 | if (profile == FF_PROFILE_UNKNOWN || !codec->profiles) |
| 3033 | return NULL; |
| 3034 | |
| 3035 | for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++) |
| 3036 | if (p->profile == profile) |
| 3037 | return p->name; |
| 3038 | |
| 3039 | return NULL; |
| 3040 | } |
| 3041 | |
| 3042 | unsigned avcodec_version(void) |
| 3043 | { |
| 3044 | // av_assert0(AV_CODEC_ID_V410==164); |
| 3045 | av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563); |
| 3046 | av_assert0(AV_CODEC_ID_ADPCM_G722==69660); |
| 3047 | // av_assert0(AV_CODEC_ID_BMV_AUDIO==86071); |
| 3048 | av_assert0(AV_CODEC_ID_SRT==94216); |
| 3049 | av_assert0(LIBAVCODEC_VERSION_MICRO >= 100); |
| 3050 | |
| 3051 | av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC); |
| 3052 | av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR); |
| 3053 | av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC); |
| 3054 | av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC); |
| 3055 | av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT); |
| 3056 | return LIBAVCODEC_VERSION_INT; |
| 3057 | } |
| 3058 | |
| 3059 | const char *avcodec_configuration(void) |
| 3060 | { |
| 3061 | return FFMPEG_CONFIGURATION; |
| 3062 | } |
| 3063 | |
| 3064 | const char *avcodec_license(void) |
| 3065 | { |
| 3066 | #define LICENSE_PREFIX "libavcodec license: " |
| 3067 | return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; |
| 3068 | } |
| 3069 | |
| 3070 | void avcodec_flush_buffers(AVCodecContext *avctx) |
| 3071 | { |
| 3072 | if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) |
| 3073 | ff_thread_flush(avctx); |
| 3074 | else if (avctx->codec->flush) |
| 3075 | avctx->codec->flush(avctx); |
| 3076 | |
| 3077 | avctx->pts_correction_last_pts = |
| 3078 | avctx->pts_correction_last_dts = INT64_MIN; |
| 3079 | |
| 3080 | if (!avctx->refcounted_frames) |
| 3081 | av_frame_unref(avctx->internal->to_free); |
| 3082 | } |
| 3083 | |
| 3084 | int av_get_exact_bits_per_sample(enum AVCodecID codec_id) |
| 3085 | { |
| 3086 | switch (codec_id) { |
| 3087 | case AV_CODEC_ID_8SVX_EXP: |
| 3088 | case AV_CODEC_ID_8SVX_FIB: |
| 3089 | case AV_CODEC_ID_ADPCM_CT: |
| 3090 | case AV_CODEC_ID_ADPCM_IMA_APC: |
| 3091 | case AV_CODEC_ID_ADPCM_IMA_EA_SEAD: |
| 3092 | case AV_CODEC_ID_ADPCM_IMA_OKI: |
| 3093 | case AV_CODEC_ID_ADPCM_IMA_WS: |
| 3094 | case AV_CODEC_ID_ADPCM_G722: |
| 3095 | case AV_CODEC_ID_ADPCM_YAMAHA: |
| 3096 | return 4; |
| 3097 | case AV_CODEC_ID_DSD_LSBF: |
| 3098 | case AV_CODEC_ID_DSD_MSBF: |
| 3099 | case AV_CODEC_ID_DSD_LSBF_PLANAR: |
| 3100 | case AV_CODEC_ID_DSD_MSBF_PLANAR: |
| 3101 | case AV_CODEC_ID_PCM_ALAW: |
| 3102 | case AV_CODEC_ID_PCM_MULAW: |
| 3103 | case AV_CODEC_ID_PCM_S8: |
| 3104 | case AV_CODEC_ID_PCM_S8_PLANAR: |
| 3105 | case AV_CODEC_ID_PCM_U8: |
| 3106 | case AV_CODEC_ID_PCM_ZORK: |
| 3107 | return 8; |
| 3108 | case AV_CODEC_ID_PCM_S16BE: |
| 3109 | case AV_CODEC_ID_PCM_S16BE_PLANAR: |
| 3110 | case AV_CODEC_ID_PCM_S16LE: |
| 3111 | case AV_CODEC_ID_PCM_S16LE_PLANAR: |
| 3112 | case AV_CODEC_ID_PCM_U16BE: |
| 3113 | case AV_CODEC_ID_PCM_U16LE: |
| 3114 | return 16; |
| 3115 | case AV_CODEC_ID_PCM_S24DAUD: |
| 3116 | case AV_CODEC_ID_PCM_S24BE: |
| 3117 | case AV_CODEC_ID_PCM_S24LE: |
| 3118 | case AV_CODEC_ID_PCM_S24LE_PLANAR: |
| 3119 | case AV_CODEC_ID_PCM_U24BE: |
| 3120 | case AV_CODEC_ID_PCM_U24LE: |
| 3121 | return 24; |
| 3122 | case AV_CODEC_ID_PCM_S32BE: |
| 3123 | case AV_CODEC_ID_PCM_S32LE: |
| 3124 | case AV_CODEC_ID_PCM_S32LE_PLANAR: |
| 3125 | case AV_CODEC_ID_PCM_U32BE: |
| 3126 | case AV_CODEC_ID_PCM_U32LE: |
| 3127 | case AV_CODEC_ID_PCM_F32BE: |
| 3128 | case AV_CODEC_ID_PCM_F32LE: |
| 3129 | return 32; |
| 3130 | case AV_CODEC_ID_PCM_F64BE: |
| 3131 | case AV_CODEC_ID_PCM_F64LE: |
| 3132 | return 64; |
| 3133 | default: |
| 3134 | return 0; |
| 3135 | } |
| 3136 | } |
| 3137 | |
| 3138 | enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be) |
| 3139 | { |
| 3140 | static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = { |
| 3141 | [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, |
| 3142 | [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, |
| 3143 | [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, |
| 3144 | [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, |
| 3145 | [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, |
| 3146 | [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, |
| 3147 | [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, |
| 3148 | [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, |
| 3149 | [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, |
| 3150 | [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, |
| 3151 | }; |
| 3152 | if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB) |
| 3153 | return AV_CODEC_ID_NONE; |
| 3154 | if (be < 0 || be > 1) |
| 3155 | be = AV_NE(1, 0); |
| 3156 | return map[fmt][be]; |
| 3157 | } |
| 3158 | |
| 3159 | int av_get_bits_per_sample(enum AVCodecID codec_id) |
| 3160 | { |
| 3161 | switch (codec_id) { |
| 3162 | case AV_CODEC_ID_ADPCM_SBPRO_2: |
| 3163 | return 2; |
| 3164 | case AV_CODEC_ID_ADPCM_SBPRO_3: |
| 3165 | return 3; |
| 3166 | case AV_CODEC_ID_ADPCM_SBPRO_4: |
| 3167 | case AV_CODEC_ID_ADPCM_IMA_WAV: |
| 3168 | case AV_CODEC_ID_ADPCM_IMA_QT: |
| 3169 | case AV_CODEC_ID_ADPCM_SWF: |
| 3170 | case AV_CODEC_ID_ADPCM_MS: |
| 3171 | return 4; |
| 3172 | default: |
| 3173 | return av_get_exact_bits_per_sample(codec_id); |
| 3174 | } |
| 3175 | } |
| 3176 | |
| 3177 | int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes) |
| 3178 | { |
| 3179 | int id, sr, ch, ba, tag, bps; |
| 3180 | |
| 3181 | id = avctx->codec_id; |
| 3182 | sr = avctx->sample_rate; |
| 3183 | ch = avctx->channels; |
| 3184 | ba = avctx->block_align; |
| 3185 | tag = avctx->codec_tag; |
| 3186 | bps = av_get_exact_bits_per_sample(avctx->codec_id); |
| 3187 | |
| 3188 | /* codecs with an exact constant bits per sample */ |
| 3189 | if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768) |
| 3190 | return (frame_bytes * 8LL) / (bps * ch); |
| 3191 | bps = avctx->bits_per_coded_sample; |
| 3192 | |
| 3193 | /* codecs with a fixed packet duration */ |
| 3194 | switch (id) { |
| 3195 | case AV_CODEC_ID_ADPCM_ADX: return 32; |
| 3196 | case AV_CODEC_ID_ADPCM_IMA_QT: return 64; |
| 3197 | case AV_CODEC_ID_ADPCM_EA_XAS: return 128; |
| 3198 | case AV_CODEC_ID_AMR_NB: |
| 3199 | case AV_CODEC_ID_EVRC: |
| 3200 | case AV_CODEC_ID_GSM: |
| 3201 | case AV_CODEC_ID_QCELP: |
| 3202 | case AV_CODEC_ID_RA_288: return 160; |
| 3203 | case AV_CODEC_ID_AMR_WB: |
| 3204 | case AV_CODEC_ID_GSM_MS: return 320; |
| 3205 | case AV_CODEC_ID_MP1: return 384; |
| 3206 | case AV_CODEC_ID_ATRAC1: return 512; |
| 3207 | case AV_CODEC_ID_ATRAC3: return 1024; |
| 3208 | case AV_CODEC_ID_MP2: |
| 3209 | case AV_CODEC_ID_MUSEPACK7: return 1152; |
| 3210 | case AV_CODEC_ID_AC3: return 1536; |
| 3211 | } |
| 3212 | |
| 3213 | if (sr > 0) { |
| 3214 | /* calc from sample rate */ |
| 3215 | if (id == AV_CODEC_ID_TTA) |
| 3216 | return 256 * sr / 245; |
| 3217 | |
| 3218 | if (ch > 0) { |
| 3219 | /* calc from sample rate and channels */ |
| 3220 | if (id == AV_CODEC_ID_BINKAUDIO_DCT) |
| 3221 | return (480 << (sr / 22050)) / ch; |
| 3222 | } |
| 3223 | } |
| 3224 | |
| 3225 | if (ba > 0) { |
| 3226 | /* calc from block_align */ |
| 3227 | if (id == AV_CODEC_ID_SIPR) { |
| 3228 | switch (ba) { |
| 3229 | case 20: return 160; |
| 3230 | case 19: return 144; |
| 3231 | case 29: return 288; |
| 3232 | case 37: return 480; |
| 3233 | } |
| 3234 | } else if (id == AV_CODEC_ID_ILBC) { |
| 3235 | switch (ba) { |
| 3236 | case 38: return 160; |
| 3237 | case 50: return 240; |
| 3238 | } |
| 3239 | } |
| 3240 | } |
| 3241 | |
| 3242 | if (frame_bytes > 0) { |
| 3243 | /* calc from frame_bytes only */ |
| 3244 | if (id == AV_CODEC_ID_TRUESPEECH) |
| 3245 | return 240 * (frame_bytes / 32); |
| 3246 | if (id == AV_CODEC_ID_NELLYMOSER) |
| 3247 | return 256 * (frame_bytes / 64); |
| 3248 | if (id == AV_CODEC_ID_RA_144) |
| 3249 | return 160 * (frame_bytes / 20); |
| 3250 | if (id == AV_CODEC_ID_G723_1) |
| 3251 | return 240 * (frame_bytes / 24); |
| 3252 | |
| 3253 | if (bps > 0) { |
| 3254 | /* calc from frame_bytes and bits_per_coded_sample */ |
| 3255 | if (id == AV_CODEC_ID_ADPCM_G726) |
| 3256 | return frame_bytes * 8 / bps; |
| 3257 | } |
| 3258 | |
| 3259 | if (ch > 0) { |
| 3260 | /* calc from frame_bytes and channels */ |
| 3261 | switch (id) { |
| 3262 | case AV_CODEC_ID_ADPCM_AFC: |
| 3263 | return frame_bytes / (9 * ch) * 16; |
| 3264 | case AV_CODEC_ID_ADPCM_DTK: |
| 3265 | return frame_bytes / (16 * ch) * 28; |
| 3266 | case AV_CODEC_ID_ADPCM_4XM: |
| 3267 | case AV_CODEC_ID_ADPCM_IMA_ISS: |
| 3268 | return (frame_bytes - 4 * ch) * 2 / ch; |
| 3269 | case AV_CODEC_ID_ADPCM_IMA_SMJPEG: |
| 3270 | return (frame_bytes - 4) * 2 / ch; |
| 3271 | case AV_CODEC_ID_ADPCM_IMA_AMV: |
| 3272 | return (frame_bytes - 8) * 2 / ch; |
| 3273 | case AV_CODEC_ID_ADPCM_XA: |
| 3274 | return (frame_bytes / 128) * 224 / ch; |
| 3275 | case AV_CODEC_ID_INTERPLAY_DPCM: |
| 3276 | return (frame_bytes - 6 - ch) / ch; |
| 3277 | case AV_CODEC_ID_ROQ_DPCM: |
| 3278 | return (frame_bytes - 8) / ch; |
| 3279 | case AV_CODEC_ID_XAN_DPCM: |
| 3280 | return (frame_bytes - 2 * ch) / ch; |
| 3281 | case AV_CODEC_ID_MACE3: |
| 3282 | return 3 * frame_bytes / ch; |
| 3283 | case AV_CODEC_ID_MACE6: |
| 3284 | return 6 * frame_bytes / ch; |
| 3285 | case AV_CODEC_ID_PCM_LXF: |
| 3286 | return 2 * (frame_bytes / (5 * ch)); |
| 3287 | case AV_CODEC_ID_IAC: |
| 3288 | case AV_CODEC_ID_IMC: |
| 3289 | return 4 * frame_bytes / ch; |
| 3290 | } |
| 3291 | |
| 3292 | if (tag) { |
| 3293 | /* calc from frame_bytes, channels, and codec_tag */ |
| 3294 | if (id == AV_CODEC_ID_SOL_DPCM) { |
| 3295 | if (tag == 3) |
| 3296 | return frame_bytes / ch; |
| 3297 | else |
| 3298 | return frame_bytes * 2 / ch; |
| 3299 | } |
| 3300 | } |
| 3301 | |
| 3302 | if (ba > 0) { |
| 3303 | /* calc from frame_bytes, channels, and block_align */ |
| 3304 | int blocks = frame_bytes / ba; |
| 3305 | switch (avctx->codec_id) { |
| 3306 | case AV_CODEC_ID_ADPCM_IMA_WAV: |
| 3307 | if (bps < 2 || bps > 5) |
| 3308 | return 0; |
| 3309 | return blocks * (1 + (ba - 4 * ch) / (bps * ch) * 8); |
| 3310 | case AV_CODEC_ID_ADPCM_IMA_DK3: |
| 3311 | return blocks * (((ba - 16) * 2 / 3 * 4) / ch); |
| 3312 | case AV_CODEC_ID_ADPCM_IMA_DK4: |
| 3313 | return blocks * (1 + (ba - 4 * ch) * 2 / ch); |
| 3314 | case AV_CODEC_ID_ADPCM_IMA_RAD: |
| 3315 | return blocks * ((ba - 4 * ch) * 2 / ch); |
| 3316 | case AV_CODEC_ID_ADPCM_MS: |
| 3317 | return blocks * (2 + (ba - 7 * ch) * 2 / ch); |
| 3318 | } |
| 3319 | } |
| 3320 | |
| 3321 | if (bps > 0) { |
| 3322 | /* calc from frame_bytes, channels, and bits_per_coded_sample */ |
| 3323 | switch (avctx->codec_id) { |
| 3324 | case AV_CODEC_ID_PCM_DVD: |
| 3325 | if(bps<4) |
| 3326 | return 0; |
| 3327 | return 2 * (frame_bytes / ((bps * 2 / 8) * ch)); |
| 3328 | case AV_CODEC_ID_PCM_BLURAY: |
| 3329 | if(bps<4) |
| 3330 | return 0; |
| 3331 | return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8); |
| 3332 | case AV_CODEC_ID_S302M: |
| 3333 | return 2 * (frame_bytes / ((bps + 4) / 4)) / ch; |
| 3334 | } |
| 3335 | } |
| 3336 | } |
| 3337 | } |
| 3338 | |
| 3339 | /* Fall back on using frame_size */ |
| 3340 | if (avctx->frame_size > 1 && frame_bytes) |
| 3341 | return avctx->frame_size; |
| 3342 | |
| 3343 | //For WMA we currently have no other means to calculate duration thus we |
| 3344 | //do it here by assuming CBR, which is true for all known cases. |
| 3345 | if (avctx->bit_rate>0 && frame_bytes>0 && avctx->sample_rate>0 && avctx->block_align>1) { |
| 3346 | if (avctx->codec_id == AV_CODEC_ID_WMAV1 || avctx->codec_id == AV_CODEC_ID_WMAV2) |
| 3347 | return (frame_bytes * 8LL * avctx->sample_rate) / avctx->bit_rate; |
| 3348 | } |
| 3349 | |
| 3350 | return 0; |
| 3351 | } |
| 3352 | |
| 3353 | #if !HAVE_THREADS |
| 3354 | int ff_thread_init(AVCodecContext *s) |
| 3355 | { |
| 3356 | return -1; |
| 3357 | } |
| 3358 | |
| 3359 | #endif |
| 3360 | |
| 3361 | unsigned int av_xiphlacing(unsigned char *s, unsigned int v) |
| 3362 | { |
| 3363 | unsigned int n = 0; |
| 3364 | |
| 3365 | while (v >= 0xff) { |
| 3366 | *s++ = 0xff; |
| 3367 | v -= 0xff; |
| 3368 | n++; |
| 3369 | } |
| 3370 | *s = v; |
| 3371 | n++; |
| 3372 | return n; |
| 3373 | } |
| 3374 | |
| 3375 | int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b) |
| 3376 | { |
| 3377 | int i; |
| 3378 | for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ; |
| 3379 | return i; |
| 3380 | } |
| 3381 | |
| 3382 | #if FF_API_MISSING_SAMPLE |
| 3383 | FF_DISABLE_DEPRECATION_WARNINGS |
| 3384 | void av_log_missing_feature(void *avc, const char *feature, int want_sample) |
| 3385 | { |
| 3386 | av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg " |
| 3387 | "version to the newest one from Git. If the problem still " |
| 3388 | "occurs, it means that your file has a feature which has not " |
| 3389 | "been implemented.\n", feature); |
| 3390 | if(want_sample) |
| 3391 | av_log_ask_for_sample(avc, NULL); |
| 3392 | } |
| 3393 | |
| 3394 | void av_log_ask_for_sample(void *avc, const char *msg, ...) |
| 3395 | { |
| 3396 | va_list argument_list; |
| 3397 | |
| 3398 | va_start(argument_list, msg); |
| 3399 | |
| 3400 | if (msg) |
| 3401 | av_vlog(avc, AV_LOG_WARNING, msg, argument_list); |
| 3402 | av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample " |
| 3403 | "of this file to ftp://upload.ffmpeg.org/incoming/ " |
| 3404 | "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)\n"); |
| 3405 | |
| 3406 | va_end(argument_list); |
| 3407 | } |
| 3408 | FF_ENABLE_DEPRECATION_WARNINGS |
| 3409 | #endif /* FF_API_MISSING_SAMPLE */ |
| 3410 | |
| 3411 | static AVHWAccel *first_hwaccel = NULL; |
| 3412 | static AVHWAccel **last_hwaccel = &first_hwaccel; |
| 3413 | |
| 3414 | void av_register_hwaccel(AVHWAccel *hwaccel) |
| 3415 | { |
| 3416 | AVHWAccel **p = last_hwaccel; |
| 3417 | hwaccel->next = NULL; |
| 3418 | while(*p || avpriv_atomic_ptr_cas((void * volatile *)p, NULL, hwaccel)) |
| 3419 | p = &(*p)->next; |
| 3420 | last_hwaccel = &hwaccel->next; |
| 3421 | } |
| 3422 | |
| 3423 | AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel) |
| 3424 | { |
| 3425 | return hwaccel ? hwaccel->next : first_hwaccel; |
| 3426 | } |
| 3427 | |
| 3428 | int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op)) |
| 3429 | { |
| 3430 | if (lockmgr_cb) { |
| 3431 | if (lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY)) |
| 3432 | return -1; |
| 3433 | if (lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY)) |
| 3434 | return -1; |
| 3435 | } |
| 3436 | |
| 3437 | lockmgr_cb = cb; |
| 3438 | |
| 3439 | if (lockmgr_cb) { |
| 3440 | if (lockmgr_cb(&codec_mutex, AV_LOCK_CREATE)) |
| 3441 | return -1; |
| 3442 | if (lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE)) |
| 3443 | return -1; |
| 3444 | } |
| 3445 | return 0; |
| 3446 | } |
| 3447 | |
| 3448 | int ff_lock_avcodec(AVCodecContext *log_ctx) |
| 3449 | { |
| 3450 | if (lockmgr_cb) { |
| 3451 | if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN)) |
| 3452 | return -1; |
| 3453 | } |
| 3454 | entangled_thread_counter++; |
| 3455 | if (entangled_thread_counter != 1) { |
| 3456 | av_log(log_ctx, AV_LOG_ERROR, "Insufficient thread locking around avcodec_open/close()\n"); |
| 3457 | if (!lockmgr_cb) |
| 3458 | av_log(log_ctx, AV_LOG_ERROR, "No lock manager is set, please see av_lockmgr_register()\n"); |
| 3459 | ff_avcodec_locked = 1; |
| 3460 | ff_unlock_avcodec(); |
| 3461 | return AVERROR(EINVAL); |
| 3462 | } |
| 3463 | av_assert0(!ff_avcodec_locked); |
| 3464 | ff_avcodec_locked = 1; |
| 3465 | return 0; |
| 3466 | } |
| 3467 | |
| 3468 | int ff_unlock_avcodec(void) |
| 3469 | { |
| 3470 | av_assert0(ff_avcodec_locked); |
| 3471 | ff_avcodec_locked = 0; |
| 3472 | entangled_thread_counter--; |
| 3473 | if (lockmgr_cb) { |
| 3474 | if ((*lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE)) |
| 3475 | return -1; |
| 3476 | } |
| 3477 | return 0; |
| 3478 | } |
| 3479 | |
| 3480 | int avpriv_lock_avformat(void) |
| 3481 | { |
| 3482 | if (lockmgr_cb) { |
| 3483 | if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN)) |
| 3484 | return -1; |
| 3485 | } |
| 3486 | return 0; |
| 3487 | } |
| 3488 | |
| 3489 | int avpriv_unlock_avformat(void) |
| 3490 | { |
| 3491 | if (lockmgr_cb) { |
| 3492 | if ((*lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE)) |
| 3493 | return -1; |
| 3494 | } |
| 3495 | return 0; |
| 3496 | } |
| 3497 | |
| 3498 | unsigned int avpriv_toupper4(unsigned int x) |
| 3499 | { |
| 3500 | return av_toupper(x & 0xFF) + |
| 3501 | (av_toupper((x >> 8) & 0xFF) << 8) + |
| 3502 | (av_toupper((x >> 16) & 0xFF) << 16) + |
| 3503 | ((unsigned)av_toupper((x >> 24) & 0xFF) << 24); |
| 3504 | } |
| 3505 | |
| 3506 | int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src) |
| 3507 | { |
| 3508 | int ret; |
| 3509 | |
| 3510 | dst->owner = src->owner; |
| 3511 | |
| 3512 | ret = av_frame_ref(dst->f, src->f); |
| 3513 | if (ret < 0) |
| 3514 | return ret; |
| 3515 | |
| 3516 | if (src->progress && |
| 3517 | !(dst->progress = av_buffer_ref(src->progress))) { |
| 3518 | ff_thread_release_buffer(dst->owner, dst); |
| 3519 | return AVERROR(ENOMEM); |
| 3520 | } |
| 3521 | |
| 3522 | return 0; |
| 3523 | } |
| 3524 | |
| 3525 | #if !HAVE_THREADS |
| 3526 | |
| 3527 | enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt) |
| 3528 | { |
| 3529 | return ff_get_format(avctx, fmt); |
| 3530 | } |
| 3531 | |
| 3532 | int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags) |
| 3533 | { |
| 3534 | f->owner = avctx; |
| 3535 | return ff_get_buffer(avctx, f->f, flags); |
| 3536 | } |
| 3537 | |
| 3538 | void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f) |
| 3539 | { |
| 3540 | if (f->f) |
| 3541 | av_frame_unref(f->f); |
| 3542 | } |
| 3543 | |
| 3544 | void ff_thread_finish_setup(AVCodecContext *avctx) |
| 3545 | { |
| 3546 | } |
| 3547 | |
| 3548 | void ff_thread_report_progress(ThreadFrame *f, int progress, int field) |
| 3549 | { |
| 3550 | } |
| 3551 | |
| 3552 | void ff_thread_await_progress(ThreadFrame *f, int progress, int field) |
| 3553 | { |
| 3554 | } |
| 3555 | |
| 3556 | int ff_thread_can_start_frame(AVCodecContext *avctx) |
| 3557 | { |
| 3558 | return 1; |
| 3559 | } |
| 3560 | |
| 3561 | int ff_alloc_entries(AVCodecContext *avctx, int count) |
| 3562 | { |
| 3563 | return 0; |
| 3564 | } |
| 3565 | |
| 3566 | void ff_reset_entries(AVCodecContext *avctx) |
| 3567 | { |
| 3568 | } |
| 3569 | |
| 3570 | void ff_thread_await_progress2(AVCodecContext *avctx, int field, int thread, int shift) |
| 3571 | { |
| 3572 | } |
| 3573 | |
| 3574 | void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n) |
| 3575 | { |
| 3576 | } |
| 3577 | |
| 3578 | #endif |
| 3579 | |
| 3580 | enum AVMediaType avcodec_get_type(enum AVCodecID codec_id) |
| 3581 | { |
| 3582 | AVCodec *c= avcodec_find_decoder(codec_id); |
| 3583 | if(!c) |
| 3584 | c= avcodec_find_encoder(codec_id); |
| 3585 | if(c) |
| 3586 | return c->type; |
| 3587 | |
| 3588 | if (codec_id <= AV_CODEC_ID_NONE) |
| 3589 | return AVMEDIA_TYPE_UNKNOWN; |
| 3590 | else if (codec_id < AV_CODEC_ID_FIRST_AUDIO) |
| 3591 | return AVMEDIA_TYPE_VIDEO; |
| 3592 | else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE) |
| 3593 | return AVMEDIA_TYPE_AUDIO; |
| 3594 | else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN) |
| 3595 | return AVMEDIA_TYPE_SUBTITLE; |
| 3596 | |
| 3597 | return AVMEDIA_TYPE_UNKNOWN; |
| 3598 | } |
| 3599 | |
| 3600 | int avcodec_is_open(AVCodecContext *s) |
| 3601 | { |
| 3602 | return !!s->internal; |
| 3603 | } |
| 3604 | |
| 3605 | int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf) |
| 3606 | { |
| 3607 | int ret; |
| 3608 | char *str; |
| 3609 | |
| 3610 | ret = av_bprint_finalize(buf, &str); |
| 3611 | if (ret < 0) |
| 3612 | return ret; |
| 3613 | avctx->extradata = str; |
| 3614 | /* Note: the string is NUL terminated (so extradata can be read as a |
| 3615 | * string), but the ending character is not accounted in the size (in |
| 3616 | * binary formats you are likely not supposed to mux that character). When |
| 3617 | * extradata is copied, it is also padded with FF_INPUT_BUFFER_PADDING_SIZE |
| 3618 | * zeros. */ |
| 3619 | avctx->extradata_size = buf->len; |
| 3620 | return 0; |
| 3621 | } |
| 3622 | |
| 3623 | const uint8_t *avpriv_find_start_code(const uint8_t *av_restrict p, |
| 3624 | const uint8_t *end, |
| 3625 | uint32_t *av_restrict state) |
| 3626 | { |
| 3627 | int i; |
| 3628 | |
| 3629 | av_assert0(p <= end); |
| 3630 | if (p >= end) |
| 3631 | return end; |
| 3632 | |
| 3633 | for (i = 0; i < 3; i++) { |
| 3634 | uint32_t tmp = *state << 8; |
| 3635 | *state = tmp + *(p++); |
| 3636 | if (tmp == 0x100 || p == end) |
| 3637 | return p; |
| 3638 | } |
| 3639 | |
| 3640 | while (p < end) { |
| 3641 | if (p[-1] > 1 ) p += 3; |
| 3642 | else if (p[-2] ) p += 2; |
| 3643 | else if (p[-3]|(p[-1]-1)) p++; |
| 3644 | else { |
| 3645 | p++; |
| 3646 | break; |
| 3647 | } |
| 3648 | } |
| 3649 | |
| 3650 | p = FFMIN(p, end) - 4; |
| 3651 | *state = AV_RB32(p); |
| 3652 | |
| 3653 | return p + 4; |
| 3654 | } |