| 1 | /* |
| 2 | * Copyright (c) 2011 Stefano Sabatini |
| 3 | * |
| 4 | * This file is part of FFmpeg. |
| 5 | * |
| 6 | * FFmpeg is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * FFmpeg is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with FFmpeg; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | /** |
| 22 | * @file |
| 23 | * buffer sink |
| 24 | */ |
| 25 | |
| 26 | #include "libavutil/audio_fifo.h" |
| 27 | #include "libavutil/avassert.h" |
| 28 | #include "libavutil/channel_layout.h" |
| 29 | #include "libavutil/common.h" |
| 30 | #include "libavutil/internal.h" |
| 31 | #include "libavutil/mathematics.h" |
| 32 | #include "libavutil/opt.h" |
| 33 | |
| 34 | #include "audio.h" |
| 35 | #include "avfilter.h" |
| 36 | #include "buffersink.h" |
| 37 | #include "internal.h" |
| 38 | |
| 39 | typedef struct BufferSinkContext { |
| 40 | const AVClass *class; |
| 41 | AVFifoBuffer *fifo; ///< FIFO buffer of video frame references |
| 42 | unsigned warning_limit; |
| 43 | |
| 44 | /* only used for video */ |
| 45 | enum AVPixelFormat *pixel_fmts; ///< list of accepted pixel formats, must be terminated with -1 |
| 46 | int pixel_fmts_size; |
| 47 | |
| 48 | /* only used for audio */ |
| 49 | enum AVSampleFormat *sample_fmts; ///< list of accepted sample formats, terminated by AV_SAMPLE_FMT_NONE |
| 50 | int sample_fmts_size; |
| 51 | int64_t *channel_layouts; ///< list of accepted channel layouts, terminated by -1 |
| 52 | int channel_layouts_size; |
| 53 | int *channel_counts; ///< list of accepted channel counts, terminated by -1 |
| 54 | int channel_counts_size; |
| 55 | int all_channel_counts; |
| 56 | int *sample_rates; ///< list of accepted sample rates, terminated by -1 |
| 57 | int sample_rates_size; |
| 58 | |
| 59 | /* only used for compat API */ |
| 60 | AVAudioFifo *audio_fifo; ///< FIFO for audio samples |
| 61 | int64_t next_pts; ///< interpolating audio pts |
| 62 | } BufferSinkContext; |
| 63 | |
| 64 | #define NB_ITEMS(list) (list ## _size / sizeof(*list)) |
| 65 | |
| 66 | static av_cold void uninit(AVFilterContext *ctx) |
| 67 | { |
| 68 | BufferSinkContext *sink = ctx->priv; |
| 69 | AVFrame *frame; |
| 70 | |
| 71 | if (sink->audio_fifo) |
| 72 | av_audio_fifo_free(sink->audio_fifo); |
| 73 | |
| 74 | if (sink->fifo) { |
| 75 | while (av_fifo_size(sink->fifo) >= sizeof(AVFilterBufferRef *)) { |
| 76 | av_fifo_generic_read(sink->fifo, &frame, sizeof(frame), NULL); |
| 77 | av_frame_free(&frame); |
| 78 | } |
| 79 | av_fifo_freep(&sink->fifo); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | static int add_buffer_ref(AVFilterContext *ctx, AVFrame *ref) |
| 84 | { |
| 85 | BufferSinkContext *buf = ctx->priv; |
| 86 | |
| 87 | if (av_fifo_space(buf->fifo) < sizeof(AVFilterBufferRef *)) { |
| 88 | /* realloc fifo size */ |
| 89 | if (av_fifo_realloc2(buf->fifo, av_fifo_size(buf->fifo) * 2) < 0) { |
| 90 | av_log(ctx, AV_LOG_ERROR, |
| 91 | "Cannot buffer more frames. Consume some available frames " |
| 92 | "before adding new ones.\n"); |
| 93 | return AVERROR(ENOMEM); |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | /* cache frame */ |
| 98 | av_fifo_generic_write(buf->fifo, &ref, sizeof(AVFilterBufferRef *), NULL); |
| 99 | return 0; |
| 100 | } |
| 101 | |
| 102 | static int filter_frame(AVFilterLink *link, AVFrame *frame) |
| 103 | { |
| 104 | AVFilterContext *ctx = link->dst; |
| 105 | BufferSinkContext *buf = link->dst->priv; |
| 106 | int ret; |
| 107 | |
| 108 | if ((ret = add_buffer_ref(ctx, frame)) < 0) |
| 109 | return ret; |
| 110 | if (buf->warning_limit && |
| 111 | av_fifo_size(buf->fifo) / sizeof(AVFilterBufferRef *) >= buf->warning_limit) { |
| 112 | av_log(ctx, AV_LOG_WARNING, |
| 113 | "%d buffers queued in %s, something may be wrong.\n", |
| 114 | buf->warning_limit, |
| 115 | (char *)av_x_if_null(ctx->name, ctx->filter->name)); |
| 116 | buf->warning_limit *= 10; |
| 117 | } |
| 118 | return 0; |
| 119 | } |
| 120 | |
| 121 | int attribute_align_arg av_buffersink_get_frame(AVFilterContext *ctx, AVFrame *frame) |
| 122 | { |
| 123 | return av_buffersink_get_frame_flags(ctx, frame, 0); |
| 124 | } |
| 125 | |
| 126 | int attribute_align_arg av_buffersink_get_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags) |
| 127 | { |
| 128 | BufferSinkContext *buf = ctx->priv; |
| 129 | AVFilterLink *inlink = ctx->inputs[0]; |
| 130 | int ret; |
| 131 | AVFrame *cur_frame; |
| 132 | |
| 133 | /* no picref available, fetch it from the filterchain */ |
| 134 | if (!av_fifo_size(buf->fifo)) { |
| 135 | if (flags & AV_BUFFERSINK_FLAG_NO_REQUEST) |
| 136 | return AVERROR(EAGAIN); |
| 137 | if ((ret = ff_request_frame(inlink)) < 0) |
| 138 | return ret; |
| 139 | } |
| 140 | |
| 141 | if (!av_fifo_size(buf->fifo)) |
| 142 | return AVERROR(EINVAL); |
| 143 | |
| 144 | if (flags & AV_BUFFERSINK_FLAG_PEEK) { |
| 145 | cur_frame = *((AVFrame **)av_fifo_peek2(buf->fifo, 0)); |
| 146 | if ((ret = av_frame_ref(frame, cur_frame)) < 0) |
| 147 | return ret; |
| 148 | } else { |
| 149 | av_fifo_generic_read(buf->fifo, &cur_frame, sizeof(cur_frame), NULL); |
| 150 | av_frame_move_ref(frame, cur_frame); |
| 151 | av_frame_free(&cur_frame); |
| 152 | } |
| 153 | |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | static int read_from_fifo(AVFilterContext *ctx, AVFrame *frame, |
| 158 | int nb_samples) |
| 159 | { |
| 160 | BufferSinkContext *s = ctx->priv; |
| 161 | AVFilterLink *link = ctx->inputs[0]; |
| 162 | AVFrame *tmp; |
| 163 | |
| 164 | if (!(tmp = ff_get_audio_buffer(link, nb_samples))) |
| 165 | return AVERROR(ENOMEM); |
| 166 | av_audio_fifo_read(s->audio_fifo, (void**)tmp->extended_data, nb_samples); |
| 167 | |
| 168 | tmp->pts = s->next_pts; |
| 169 | if (s->next_pts != AV_NOPTS_VALUE) |
| 170 | s->next_pts += av_rescale_q(nb_samples, (AVRational){1, link->sample_rate}, |
| 171 | link->time_base); |
| 172 | |
| 173 | av_frame_move_ref(frame, tmp); |
| 174 | av_frame_free(&tmp); |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | int attribute_align_arg av_buffersink_get_samples(AVFilterContext *ctx, |
| 180 | AVFrame *frame, int nb_samples) |
| 181 | { |
| 182 | BufferSinkContext *s = ctx->priv; |
| 183 | AVFilterLink *link = ctx->inputs[0]; |
| 184 | AVFrame *cur_frame; |
| 185 | int ret = 0; |
| 186 | |
| 187 | if (!s->audio_fifo) { |
| 188 | int nb_channels = link->channels; |
| 189 | if (!(s->audio_fifo = av_audio_fifo_alloc(link->format, nb_channels, nb_samples))) |
| 190 | return AVERROR(ENOMEM); |
| 191 | } |
| 192 | |
| 193 | while (ret >= 0) { |
| 194 | if (av_audio_fifo_size(s->audio_fifo) >= nb_samples) |
| 195 | return read_from_fifo(ctx, frame, nb_samples); |
| 196 | |
| 197 | if (!(cur_frame = av_frame_alloc())) |
| 198 | return AVERROR(ENOMEM); |
| 199 | ret = av_buffersink_get_frame_flags(ctx, cur_frame, 0); |
| 200 | if (ret == AVERROR_EOF && av_audio_fifo_size(s->audio_fifo)) { |
| 201 | av_frame_free(&cur_frame); |
| 202 | return read_from_fifo(ctx, frame, av_audio_fifo_size(s->audio_fifo)); |
| 203 | } else if (ret < 0) { |
| 204 | av_frame_free(&cur_frame); |
| 205 | return ret; |
| 206 | } |
| 207 | |
| 208 | if (cur_frame->pts != AV_NOPTS_VALUE) { |
| 209 | s->next_pts = cur_frame->pts - |
| 210 | av_rescale_q(av_audio_fifo_size(s->audio_fifo), |
| 211 | (AVRational){ 1, link->sample_rate }, |
| 212 | link->time_base); |
| 213 | } |
| 214 | |
| 215 | ret = av_audio_fifo_write(s->audio_fifo, (void**)cur_frame->extended_data, |
| 216 | cur_frame->nb_samples); |
| 217 | av_frame_free(&cur_frame); |
| 218 | } |
| 219 | |
| 220 | return ret; |
| 221 | } |
| 222 | |
| 223 | AVBufferSinkParams *av_buffersink_params_alloc(void) |
| 224 | { |
| 225 | static const int pixel_fmts[] = { AV_PIX_FMT_NONE }; |
| 226 | AVBufferSinkParams *params = av_malloc(sizeof(AVBufferSinkParams)); |
| 227 | if (!params) |
| 228 | return NULL; |
| 229 | |
| 230 | params->pixel_fmts = pixel_fmts; |
| 231 | return params; |
| 232 | } |
| 233 | |
| 234 | AVABufferSinkParams *av_abuffersink_params_alloc(void) |
| 235 | { |
| 236 | AVABufferSinkParams *params = av_mallocz(sizeof(AVABufferSinkParams)); |
| 237 | |
| 238 | if (!params) |
| 239 | return NULL; |
| 240 | return params; |
| 241 | } |
| 242 | |
| 243 | #define FIFO_INIT_SIZE 8 |
| 244 | |
| 245 | static av_cold int common_init(AVFilterContext *ctx) |
| 246 | { |
| 247 | BufferSinkContext *buf = ctx->priv; |
| 248 | |
| 249 | buf->fifo = av_fifo_alloc_array(FIFO_INIT_SIZE, sizeof(AVFilterBufferRef *)); |
| 250 | if (!buf->fifo) { |
| 251 | av_log(ctx, AV_LOG_ERROR, "Failed to allocate fifo\n"); |
| 252 | return AVERROR(ENOMEM); |
| 253 | } |
| 254 | buf->warning_limit = 100; |
| 255 | buf->next_pts = AV_NOPTS_VALUE; |
| 256 | return 0; |
| 257 | } |
| 258 | |
| 259 | void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size) |
| 260 | { |
| 261 | AVFilterLink *inlink = ctx->inputs[0]; |
| 262 | |
| 263 | inlink->min_samples = inlink->max_samples = |
| 264 | inlink->partial_buf_size = frame_size; |
| 265 | } |
| 266 | |
| 267 | #if FF_API_AVFILTERBUFFER |
| 268 | FF_DISABLE_DEPRECATION_WARNINGS |
| 269 | static void compat_free_buffer(AVFilterBuffer *buf) |
| 270 | { |
| 271 | AVFrame *frame = buf->priv; |
| 272 | av_frame_free(&frame); |
| 273 | av_free(buf); |
| 274 | } |
| 275 | |
| 276 | static int compat_read(AVFilterContext *ctx, |
| 277 | AVFilterBufferRef **pbuf, int nb_samples, int flags) |
| 278 | { |
| 279 | AVFilterBufferRef *buf; |
| 280 | AVFrame *frame; |
| 281 | int ret; |
| 282 | |
| 283 | if (!pbuf) |
| 284 | return ff_poll_frame(ctx->inputs[0]); |
| 285 | |
| 286 | frame = av_frame_alloc(); |
| 287 | if (!frame) |
| 288 | return AVERROR(ENOMEM); |
| 289 | |
| 290 | if (!nb_samples) |
| 291 | ret = av_buffersink_get_frame_flags(ctx, frame, flags); |
| 292 | else |
| 293 | ret = av_buffersink_get_samples(ctx, frame, nb_samples); |
| 294 | |
| 295 | if (ret < 0) |
| 296 | goto fail; |
| 297 | |
| 298 | AV_NOWARN_DEPRECATED( |
| 299 | if (ctx->inputs[0]->type == AVMEDIA_TYPE_VIDEO) { |
| 300 | buf = avfilter_get_video_buffer_ref_from_arrays(frame->data, frame->linesize, |
| 301 | AV_PERM_READ, |
| 302 | frame->width, frame->height, |
| 303 | frame->format); |
| 304 | } else { |
| 305 | buf = avfilter_get_audio_buffer_ref_from_arrays(frame->extended_data, |
| 306 | frame->linesize[0], AV_PERM_READ, |
| 307 | frame->nb_samples, |
| 308 | frame->format, |
| 309 | frame->channel_layout); |
| 310 | } |
| 311 | if (!buf) { |
| 312 | ret = AVERROR(ENOMEM); |
| 313 | goto fail; |
| 314 | } |
| 315 | |
| 316 | avfilter_copy_frame_props(buf, frame); |
| 317 | ) |
| 318 | |
| 319 | buf->buf->priv = frame; |
| 320 | buf->buf->free = compat_free_buffer; |
| 321 | |
| 322 | *pbuf = buf; |
| 323 | |
| 324 | return 0; |
| 325 | fail: |
| 326 | av_frame_free(&frame); |
| 327 | return ret; |
| 328 | } |
| 329 | |
| 330 | int attribute_align_arg av_buffersink_read(AVFilterContext *ctx, AVFilterBufferRef **buf) |
| 331 | { |
| 332 | return compat_read(ctx, buf, 0, 0); |
| 333 | } |
| 334 | |
| 335 | int attribute_align_arg av_buffersink_read_samples(AVFilterContext *ctx, AVFilterBufferRef **buf, |
| 336 | int nb_samples) |
| 337 | { |
| 338 | return compat_read(ctx, buf, nb_samples, 0); |
| 339 | } |
| 340 | |
| 341 | int attribute_align_arg av_buffersink_get_buffer_ref(AVFilterContext *ctx, |
| 342 | AVFilterBufferRef **bufref, int flags) |
| 343 | { |
| 344 | *bufref = NULL; |
| 345 | |
| 346 | av_assert0( !strcmp(ctx->filter->name, "buffersink") |
| 347 | || !strcmp(ctx->filter->name, "abuffersink") |
| 348 | || !strcmp(ctx->filter->name, "ffbuffersink") |
| 349 | || !strcmp(ctx->filter->name, "ffabuffersink")); |
| 350 | |
| 351 | return compat_read(ctx, bufref, 0, flags); |
| 352 | } |
| 353 | FF_ENABLE_DEPRECATION_WARNINGS |
| 354 | #endif |
| 355 | |
| 356 | AVRational av_buffersink_get_frame_rate(AVFilterContext *ctx) |
| 357 | { |
| 358 | av_assert0( !strcmp(ctx->filter->name, "buffersink") |
| 359 | || !strcmp(ctx->filter->name, "ffbuffersink")); |
| 360 | |
| 361 | return ctx->inputs[0]->frame_rate; |
| 362 | } |
| 363 | |
| 364 | int attribute_align_arg av_buffersink_poll_frame(AVFilterContext *ctx) |
| 365 | { |
| 366 | BufferSinkContext *buf = ctx->priv; |
| 367 | AVFilterLink *inlink = ctx->inputs[0]; |
| 368 | |
| 369 | av_assert0( !strcmp(ctx->filter->name, "buffersink") |
| 370 | || !strcmp(ctx->filter->name, "abuffersink") |
| 371 | || !strcmp(ctx->filter->name, "ffbuffersink") |
| 372 | || !strcmp(ctx->filter->name, "ffabuffersink")); |
| 373 | |
| 374 | return av_fifo_size(buf->fifo)/sizeof(AVFilterBufferRef *) + ff_poll_frame(inlink); |
| 375 | } |
| 376 | |
| 377 | static av_cold int vsink_init(AVFilterContext *ctx, void *opaque) |
| 378 | { |
| 379 | BufferSinkContext *buf = ctx->priv; |
| 380 | AVBufferSinkParams *params = opaque; |
| 381 | int ret; |
| 382 | |
| 383 | if (params) { |
| 384 | if ((ret = av_opt_set_int_list(buf, "pix_fmts", params->pixel_fmts, AV_PIX_FMT_NONE, 0)) < 0) |
| 385 | return ret; |
| 386 | } |
| 387 | |
| 388 | return common_init(ctx); |
| 389 | } |
| 390 | |
| 391 | #define CHECK_LIST_SIZE(field) \ |
| 392 | if (buf->field ## _size % sizeof(*buf->field)) { \ |
| 393 | av_log(ctx, AV_LOG_ERROR, "Invalid size for " #field ": %d, " \ |
| 394 | "should be multiple of %d\n", \ |
| 395 | buf->field ## _size, (int)sizeof(*buf->field)); \ |
| 396 | return AVERROR(EINVAL); \ |
| 397 | } |
| 398 | static int vsink_query_formats(AVFilterContext *ctx) |
| 399 | { |
| 400 | BufferSinkContext *buf = ctx->priv; |
| 401 | AVFilterFormats *formats = NULL; |
| 402 | unsigned i; |
| 403 | int ret; |
| 404 | |
| 405 | CHECK_LIST_SIZE(pixel_fmts) |
| 406 | if (buf->pixel_fmts_size) { |
| 407 | for (i = 0; i < NB_ITEMS(buf->pixel_fmts); i++) |
| 408 | if ((ret = ff_add_format(&formats, buf->pixel_fmts[i])) < 0) { |
| 409 | ff_formats_unref(&formats); |
| 410 | return ret; |
| 411 | } |
| 412 | ff_set_common_formats(ctx, formats); |
| 413 | } else { |
| 414 | ff_default_query_formats(ctx); |
| 415 | } |
| 416 | |
| 417 | return 0; |
| 418 | } |
| 419 | |
| 420 | static av_cold int asink_init(AVFilterContext *ctx, void *opaque) |
| 421 | { |
| 422 | BufferSinkContext *buf = ctx->priv; |
| 423 | AVABufferSinkParams *params = opaque; |
| 424 | int ret; |
| 425 | |
| 426 | if (params) { |
| 427 | if ((ret = av_opt_set_int_list(buf, "sample_fmts", params->sample_fmts, AV_SAMPLE_FMT_NONE, 0)) < 0 || |
| 428 | (ret = av_opt_set_int_list(buf, "sample_rates", params->sample_rates, -1, 0)) < 0 || |
| 429 | (ret = av_opt_set_int_list(buf, "channel_layouts", params->channel_layouts, -1, 0)) < 0 || |
| 430 | (ret = av_opt_set_int_list(buf, "channel_counts", params->channel_counts, -1, 0)) < 0 || |
| 431 | (ret = av_opt_set_int(buf, "all_channel_counts", params->all_channel_counts, 0)) < 0) |
| 432 | return ret; |
| 433 | } |
| 434 | return common_init(ctx); |
| 435 | } |
| 436 | |
| 437 | static int asink_query_formats(AVFilterContext *ctx) |
| 438 | { |
| 439 | BufferSinkContext *buf = ctx->priv; |
| 440 | AVFilterFormats *formats = NULL; |
| 441 | AVFilterChannelLayouts *layouts = NULL; |
| 442 | unsigned i; |
| 443 | int ret; |
| 444 | |
| 445 | CHECK_LIST_SIZE(sample_fmts) |
| 446 | CHECK_LIST_SIZE(sample_rates) |
| 447 | CHECK_LIST_SIZE(channel_layouts) |
| 448 | CHECK_LIST_SIZE(channel_counts) |
| 449 | |
| 450 | if (buf->sample_fmts_size) { |
| 451 | for (i = 0; i < NB_ITEMS(buf->sample_fmts); i++) |
| 452 | if ((ret = ff_add_format(&formats, buf->sample_fmts[i])) < 0) { |
| 453 | ff_formats_unref(&formats); |
| 454 | return ret; |
| 455 | } |
| 456 | ff_set_common_formats(ctx, formats); |
| 457 | } |
| 458 | |
| 459 | if (buf->channel_layouts_size || buf->channel_counts_size || |
| 460 | buf->all_channel_counts) { |
| 461 | for (i = 0; i < NB_ITEMS(buf->channel_layouts); i++) |
| 462 | if ((ret = ff_add_channel_layout(&layouts, buf->channel_layouts[i])) < 0) { |
| 463 | ff_channel_layouts_unref(&layouts); |
| 464 | return ret; |
| 465 | } |
| 466 | for (i = 0; i < NB_ITEMS(buf->channel_counts); i++) |
| 467 | if ((ret = ff_add_channel_layout(&layouts, FF_COUNT2LAYOUT(buf->channel_counts[i]))) < 0) { |
| 468 | ff_channel_layouts_unref(&layouts); |
| 469 | return ret; |
| 470 | } |
| 471 | if (buf->all_channel_counts) { |
| 472 | if (layouts) |
| 473 | av_log(ctx, AV_LOG_WARNING, |
| 474 | "Conflicting all_channel_counts and list in options\n"); |
| 475 | else if (!(layouts = ff_all_channel_counts())) |
| 476 | return AVERROR(ENOMEM); |
| 477 | } |
| 478 | ff_set_common_channel_layouts(ctx, layouts); |
| 479 | } |
| 480 | |
| 481 | if (buf->sample_rates_size) { |
| 482 | formats = NULL; |
| 483 | for (i = 0; i < NB_ITEMS(buf->sample_rates); i++) |
| 484 | if ((ret = ff_add_format(&formats, buf->sample_rates[i])) < 0) { |
| 485 | ff_formats_unref(&formats); |
| 486 | return ret; |
| 487 | } |
| 488 | ff_set_common_samplerates(ctx, formats); |
| 489 | } |
| 490 | |
| 491 | return 0; |
| 492 | } |
| 493 | |
| 494 | #define OFFSET(x) offsetof(BufferSinkContext, x) |
| 495 | #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
| 496 | static const AVOption buffersink_options[] = { |
| 497 | { "pix_fmts", "set the supported pixel formats", OFFSET(pixel_fmts), AV_OPT_TYPE_BINARY, .flags = FLAGS }, |
| 498 | { NULL }, |
| 499 | }; |
| 500 | #undef FLAGS |
| 501 | #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
| 502 | static const AVOption abuffersink_options[] = { |
| 503 | { "sample_fmts", "set the supported sample formats", OFFSET(sample_fmts), AV_OPT_TYPE_BINARY, .flags = FLAGS }, |
| 504 | { "sample_rates", "set the supported sample rates", OFFSET(sample_rates), AV_OPT_TYPE_BINARY, .flags = FLAGS }, |
| 505 | { "channel_layouts", "set the supported channel layouts", OFFSET(channel_layouts), AV_OPT_TYPE_BINARY, .flags = FLAGS }, |
| 506 | { "channel_counts", "set the supported channel counts", OFFSET(channel_counts), AV_OPT_TYPE_BINARY, .flags = FLAGS }, |
| 507 | { "all_channel_counts", "accept all channel counts", OFFSET(all_channel_counts), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS }, |
| 508 | { NULL }, |
| 509 | }; |
| 510 | #undef FLAGS |
| 511 | |
| 512 | AVFILTER_DEFINE_CLASS(buffersink); |
| 513 | AVFILTER_DEFINE_CLASS(abuffersink); |
| 514 | |
| 515 | #if FF_API_AVFILTERBUFFER |
| 516 | |
| 517 | #define ffbuffersink_options buffersink_options |
| 518 | #define ffabuffersink_options abuffersink_options |
| 519 | AVFILTER_DEFINE_CLASS(ffbuffersink); |
| 520 | AVFILTER_DEFINE_CLASS(ffabuffersink); |
| 521 | |
| 522 | static const AVFilterPad ffbuffersink_inputs[] = { |
| 523 | { |
| 524 | .name = "default", |
| 525 | .type = AVMEDIA_TYPE_VIDEO, |
| 526 | .filter_frame = filter_frame, |
| 527 | }, |
| 528 | { NULL }, |
| 529 | }; |
| 530 | |
| 531 | AVFilter ff_vsink_ffbuffersink = { |
| 532 | .name = "ffbuffersink", |
| 533 | .description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them available to the end of the filter graph."), |
| 534 | .priv_size = sizeof(BufferSinkContext), |
| 535 | .priv_class = &ffbuffersink_class, |
| 536 | .init_opaque = vsink_init, |
| 537 | .uninit = uninit, |
| 538 | |
| 539 | .query_formats = vsink_query_formats, |
| 540 | .inputs = ffbuffersink_inputs, |
| 541 | .outputs = NULL, |
| 542 | }; |
| 543 | |
| 544 | static const AVFilterPad ffabuffersink_inputs[] = { |
| 545 | { |
| 546 | .name = "default", |
| 547 | .type = AVMEDIA_TYPE_AUDIO, |
| 548 | .filter_frame = filter_frame, |
| 549 | }, |
| 550 | { NULL }, |
| 551 | }; |
| 552 | |
| 553 | AVFilter ff_asink_ffabuffersink = { |
| 554 | .name = "ffabuffersink", |
| 555 | .description = NULL_IF_CONFIG_SMALL("Buffer audio frames, and make them available to the end of the filter graph."), |
| 556 | .init_opaque = asink_init, |
| 557 | .uninit = uninit, |
| 558 | .priv_size = sizeof(BufferSinkContext), |
| 559 | .priv_class = &ffabuffersink_class, |
| 560 | .query_formats = asink_query_formats, |
| 561 | .inputs = ffabuffersink_inputs, |
| 562 | .outputs = NULL, |
| 563 | }; |
| 564 | #endif /* FF_API_AVFILTERBUFFER */ |
| 565 | |
| 566 | static const AVFilterPad avfilter_vsink_buffer_inputs[] = { |
| 567 | { |
| 568 | .name = "default", |
| 569 | .type = AVMEDIA_TYPE_VIDEO, |
| 570 | .filter_frame = filter_frame, |
| 571 | }, |
| 572 | { NULL } |
| 573 | }; |
| 574 | |
| 575 | AVFilter ff_vsink_buffer = { |
| 576 | .name = "buffersink", |
| 577 | .description = NULL_IF_CONFIG_SMALL("Buffer video frames, and make them available to the end of the filter graph."), |
| 578 | .priv_size = sizeof(BufferSinkContext), |
| 579 | .priv_class = &buffersink_class, |
| 580 | .init_opaque = vsink_init, |
| 581 | .uninit = uninit, |
| 582 | |
| 583 | .query_formats = vsink_query_formats, |
| 584 | .inputs = avfilter_vsink_buffer_inputs, |
| 585 | .outputs = NULL, |
| 586 | }; |
| 587 | |
| 588 | static const AVFilterPad avfilter_asink_abuffer_inputs[] = { |
| 589 | { |
| 590 | .name = "default", |
| 591 | .type = AVMEDIA_TYPE_AUDIO, |
| 592 | .filter_frame = filter_frame, |
| 593 | }, |
| 594 | { NULL } |
| 595 | }; |
| 596 | |
| 597 | AVFilter ff_asink_abuffer = { |
| 598 | .name = "abuffersink", |
| 599 | .description = NULL_IF_CONFIG_SMALL("Buffer audio frames, and make them available to the end of the filter graph."), |
| 600 | .priv_class = &abuffersink_class, |
| 601 | .priv_size = sizeof(BufferSinkContext), |
| 602 | .init_opaque = asink_init, |
| 603 | .uninit = uninit, |
| 604 | |
| 605 | .query_formats = asink_query_formats, |
| 606 | .inputs = avfilter_asink_abuffer_inputs, |
| 607 | .outputs = NULL, |
| 608 | }; |