| 1 | /* |
| 2 | * PCM codecs |
| 3 | * Copyright (c) 2001 Fabrice Bellard |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * @file |
| 24 | * PCM codecs |
| 25 | */ |
| 26 | |
| 27 | #include "libavutil/attributes.h" |
| 28 | #include "avcodec.h" |
| 29 | #include "bytestream.h" |
| 30 | #include "internal.h" |
| 31 | #include "mathops.h" |
| 32 | #include "pcm_tablegen.h" |
| 33 | |
| 34 | static av_cold int pcm_encode_init(AVCodecContext *avctx) |
| 35 | { |
| 36 | avctx->frame_size = 0; |
| 37 | switch (avctx->codec->id) { |
| 38 | case AV_CODEC_ID_PCM_ALAW: |
| 39 | pcm_alaw_tableinit(); |
| 40 | break; |
| 41 | case AV_CODEC_ID_PCM_MULAW: |
| 42 | pcm_ulaw_tableinit(); |
| 43 | break; |
| 44 | default: |
| 45 | break; |
| 46 | } |
| 47 | |
| 48 | avctx->bits_per_coded_sample = av_get_bits_per_sample(avctx->codec->id); |
| 49 | avctx->block_align = avctx->channels * avctx->bits_per_coded_sample / 8; |
| 50 | avctx->bit_rate = avctx->block_align * avctx->sample_rate * 8; |
| 51 | |
| 52 | return 0; |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * Write PCM samples macro |
| 57 | * @param type Datatype of native machine format |
| 58 | * @param endian bytestream_put_xxx() suffix |
| 59 | * @param src Source pointer (variable name) |
| 60 | * @param dst Destination pointer (variable name) |
| 61 | * @param n Total number of samples (variable name) |
| 62 | * @param shift Bitshift (bits) |
| 63 | * @param offset Sample value offset |
| 64 | */ |
| 65 | #define ENCODE(type, endian, src, dst, n, shift, offset) \ |
| 66 | samples_ ## type = (const type *) src; \ |
| 67 | for (; n > 0; n--) { \ |
| 68 | register type v = (*samples_ ## type++ >> shift) + offset; \ |
| 69 | bytestream_put_ ## endian(&dst, v); \ |
| 70 | } |
| 71 | |
| 72 | #define ENCODE_PLANAR(type, endian, dst, n, shift, offset) \ |
| 73 | n /= avctx->channels; \ |
| 74 | for (c = 0; c < avctx->channels; c++) { \ |
| 75 | int i; \ |
| 76 | samples_ ## type = (const type *) frame->extended_data[c]; \ |
| 77 | for (i = n; i > 0; i--) { \ |
| 78 | register type v = (*samples_ ## type++ >> shift) + offset; \ |
| 79 | bytestream_put_ ## endian(&dst, v); \ |
| 80 | } \ |
| 81 | } |
| 82 | |
| 83 | static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, |
| 84 | const AVFrame *frame, int *got_packet_ptr) |
| 85 | { |
| 86 | int n, c, sample_size, v, ret; |
| 87 | const short *samples; |
| 88 | unsigned char *dst; |
| 89 | const uint8_t *samples_uint8_t; |
| 90 | const int16_t *samples_int16_t; |
| 91 | const int32_t *samples_int32_t; |
| 92 | const int64_t *samples_int64_t; |
| 93 | const uint16_t *samples_uint16_t; |
| 94 | const uint32_t *samples_uint32_t; |
| 95 | |
| 96 | sample_size = av_get_bits_per_sample(avctx->codec->id) / 8; |
| 97 | n = frame->nb_samples * avctx->channels; |
| 98 | samples = (const short *)frame->data[0]; |
| 99 | |
| 100 | if ((ret = ff_alloc_packet2(avctx, avpkt, n * sample_size)) < 0) |
| 101 | return ret; |
| 102 | dst = avpkt->data; |
| 103 | |
| 104 | switch (avctx->codec->id) { |
| 105 | case AV_CODEC_ID_PCM_U32LE: |
| 106 | ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000) |
| 107 | break; |
| 108 | case AV_CODEC_ID_PCM_U32BE: |
| 109 | ENCODE(uint32_t, be32, samples, dst, n, 0, 0x80000000) |
| 110 | break; |
| 111 | case AV_CODEC_ID_PCM_S24LE: |
| 112 | ENCODE(int32_t, le24, samples, dst, n, 8, 0) |
| 113 | break; |
| 114 | case AV_CODEC_ID_PCM_S24LE_PLANAR: |
| 115 | ENCODE_PLANAR(int32_t, le24, dst, n, 8, 0) |
| 116 | break; |
| 117 | case AV_CODEC_ID_PCM_S24BE: |
| 118 | ENCODE(int32_t, be24, samples, dst, n, 8, 0) |
| 119 | break; |
| 120 | case AV_CODEC_ID_PCM_U24LE: |
| 121 | ENCODE(uint32_t, le24, samples, dst, n, 8, 0x800000) |
| 122 | break; |
| 123 | case AV_CODEC_ID_PCM_U24BE: |
| 124 | ENCODE(uint32_t, be24, samples, dst, n, 8, 0x800000) |
| 125 | break; |
| 126 | case AV_CODEC_ID_PCM_S24DAUD: |
| 127 | for (; n > 0; n--) { |
| 128 | uint32_t tmp = ff_reverse[(*samples >> 8) & 0xff] + |
| 129 | (ff_reverse[*samples & 0xff] << 8); |
| 130 | tmp <<= 4; // sync flags would go here |
| 131 | bytestream_put_be24(&dst, tmp); |
| 132 | samples++; |
| 133 | } |
| 134 | break; |
| 135 | case AV_CODEC_ID_PCM_U16LE: |
| 136 | ENCODE(uint16_t, le16, samples, dst, n, 0, 0x8000) |
| 137 | break; |
| 138 | case AV_CODEC_ID_PCM_U16BE: |
| 139 | ENCODE(uint16_t, be16, samples, dst, n, 0, 0x8000) |
| 140 | break; |
| 141 | case AV_CODEC_ID_PCM_S8: |
| 142 | ENCODE(uint8_t, byte, samples, dst, n, 0, -128) |
| 143 | break; |
| 144 | case AV_CODEC_ID_PCM_S8_PLANAR: |
| 145 | ENCODE_PLANAR(uint8_t, byte, dst, n, 0, -128) |
| 146 | break; |
| 147 | #if HAVE_BIGENDIAN |
| 148 | case AV_CODEC_ID_PCM_F64LE: |
| 149 | ENCODE(int64_t, le64, samples, dst, n, 0, 0) |
| 150 | break; |
| 151 | case AV_CODEC_ID_PCM_S32LE: |
| 152 | case AV_CODEC_ID_PCM_F32LE: |
| 153 | ENCODE(int32_t, le32, samples, dst, n, 0, 0) |
| 154 | break; |
| 155 | case AV_CODEC_ID_PCM_S32LE_PLANAR: |
| 156 | ENCODE_PLANAR(int32_t, le32, dst, n, 0, 0) |
| 157 | break; |
| 158 | case AV_CODEC_ID_PCM_S16LE: |
| 159 | ENCODE(int16_t, le16, samples, dst, n, 0, 0) |
| 160 | break; |
| 161 | case AV_CODEC_ID_PCM_S16LE_PLANAR: |
| 162 | ENCODE_PLANAR(int16_t, le16, dst, n, 0, 0) |
| 163 | break; |
| 164 | case AV_CODEC_ID_PCM_F64BE: |
| 165 | case AV_CODEC_ID_PCM_F32BE: |
| 166 | case AV_CODEC_ID_PCM_S32BE: |
| 167 | case AV_CODEC_ID_PCM_S16BE: |
| 168 | #else |
| 169 | case AV_CODEC_ID_PCM_F64BE: |
| 170 | ENCODE(int64_t, be64, samples, dst, n, 0, 0) |
| 171 | break; |
| 172 | case AV_CODEC_ID_PCM_F32BE: |
| 173 | case AV_CODEC_ID_PCM_S32BE: |
| 174 | ENCODE(int32_t, be32, samples, dst, n, 0, 0) |
| 175 | break; |
| 176 | case AV_CODEC_ID_PCM_S16BE: |
| 177 | ENCODE(int16_t, be16, samples, dst, n, 0, 0) |
| 178 | break; |
| 179 | case AV_CODEC_ID_PCM_S16BE_PLANAR: |
| 180 | ENCODE_PLANAR(int16_t, be16, dst, n, 0, 0) |
| 181 | break; |
| 182 | case AV_CODEC_ID_PCM_F64LE: |
| 183 | case AV_CODEC_ID_PCM_F32LE: |
| 184 | case AV_CODEC_ID_PCM_S32LE: |
| 185 | case AV_CODEC_ID_PCM_S16LE: |
| 186 | #endif /* HAVE_BIGENDIAN */ |
| 187 | case AV_CODEC_ID_PCM_U8: |
| 188 | memcpy(dst, samples, n * sample_size); |
| 189 | break; |
| 190 | #if HAVE_BIGENDIAN |
| 191 | case AV_CODEC_ID_PCM_S16BE_PLANAR: |
| 192 | #else |
| 193 | case AV_CODEC_ID_PCM_S16LE_PLANAR: |
| 194 | case AV_CODEC_ID_PCM_S32LE_PLANAR: |
| 195 | #endif /* HAVE_BIGENDIAN */ |
| 196 | n /= avctx->channels; |
| 197 | for (c = 0; c < avctx->channels; c++) { |
| 198 | const uint8_t *src = frame->extended_data[c]; |
| 199 | bytestream_put_buffer(&dst, src, n * sample_size); |
| 200 | } |
| 201 | break; |
| 202 | case AV_CODEC_ID_PCM_ALAW: |
| 203 | for (; n > 0; n--) { |
| 204 | v = *samples++; |
| 205 | *dst++ = linear_to_alaw[(v + 32768) >> 2]; |
| 206 | } |
| 207 | break; |
| 208 | case AV_CODEC_ID_PCM_MULAW: |
| 209 | for (; n > 0; n--) { |
| 210 | v = *samples++; |
| 211 | *dst++ = linear_to_ulaw[(v + 32768) >> 2]; |
| 212 | } |
| 213 | break; |
| 214 | default: |
| 215 | return -1; |
| 216 | } |
| 217 | |
| 218 | *got_packet_ptr = 1; |
| 219 | return 0; |
| 220 | } |
| 221 | |
| 222 | typedef struct PCMDecode { |
| 223 | short table[256]; |
| 224 | } PCMDecode; |
| 225 | |
| 226 | static av_cold int pcm_decode_init(AVCodecContext *avctx) |
| 227 | { |
| 228 | PCMDecode *s = avctx->priv_data; |
| 229 | int i; |
| 230 | |
| 231 | if (avctx->channels <= 0) { |
| 232 | av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n"); |
| 233 | return AVERROR(EINVAL); |
| 234 | } |
| 235 | |
| 236 | switch (avctx->codec_id) { |
| 237 | case AV_CODEC_ID_PCM_ALAW: |
| 238 | for (i = 0; i < 256; i++) |
| 239 | s->table[i] = alaw2linear(i); |
| 240 | break; |
| 241 | case AV_CODEC_ID_PCM_MULAW: |
| 242 | for (i = 0; i < 256; i++) |
| 243 | s->table[i] = ulaw2linear(i); |
| 244 | break; |
| 245 | default: |
| 246 | break; |
| 247 | } |
| 248 | |
| 249 | avctx->sample_fmt = avctx->codec->sample_fmts[0]; |
| 250 | |
| 251 | if (avctx->sample_fmt == AV_SAMPLE_FMT_S32) |
| 252 | avctx->bits_per_raw_sample = av_get_bits_per_sample(avctx->codec_id); |
| 253 | |
| 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | /** |
| 258 | * Read PCM samples macro |
| 259 | * @param size Data size of native machine format |
| 260 | * @param endian bytestream_get_xxx() endian suffix |
| 261 | * @param src Source pointer (variable name) |
| 262 | * @param dst Destination pointer (variable name) |
| 263 | * @param n Total number of samples (variable name) |
| 264 | * @param shift Bitshift (bits) |
| 265 | * @param offset Sample value offset |
| 266 | */ |
| 267 | #define DECODE(size, endian, src, dst, n, shift, offset) \ |
| 268 | for (; n > 0; n--) { \ |
| 269 | uint ## size ## _t v = bytestream_get_ ## endian(&src); \ |
| 270 | AV_WN ## size ## A(dst, (v - offset) << shift); \ |
| 271 | dst += size / 8; \ |
| 272 | } |
| 273 | |
| 274 | #define DECODE_PLANAR(size, endian, src, dst, n, shift, offset) \ |
| 275 | n /= avctx->channels; \ |
| 276 | for (c = 0; c < avctx->channels; c++) { \ |
| 277 | int i; \ |
| 278 | dst = frame->extended_data[c]; \ |
| 279 | for (i = n; i > 0; i--) { \ |
| 280 | uint ## size ## _t v = bytestream_get_ ## endian(&src); \ |
| 281 | AV_WN ## size ## A(dst, (v - offset) << shift); \ |
| 282 | dst += size / 8; \ |
| 283 | } \ |
| 284 | } |
| 285 | |
| 286 | static int pcm_decode_frame(AVCodecContext *avctx, void *data, |
| 287 | int *got_frame_ptr, AVPacket *avpkt) |
| 288 | { |
| 289 | const uint8_t *src = avpkt->data; |
| 290 | int buf_size = avpkt->size; |
| 291 | PCMDecode *s = avctx->priv_data; |
| 292 | AVFrame *frame = data; |
| 293 | int sample_size, c, n, ret, samples_per_block; |
| 294 | uint8_t *samples; |
| 295 | int32_t *dst_int32_t; |
| 296 | |
| 297 | sample_size = av_get_bits_per_sample(avctx->codec_id) / 8; |
| 298 | |
| 299 | /* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */ |
| 300 | samples_per_block = 1; |
| 301 | if (avctx->codec_id == AV_CODEC_ID_PCM_LXF) { |
| 302 | /* we process 40-bit blocks per channel for LXF */ |
| 303 | samples_per_block = 2; |
| 304 | sample_size = 5; |
| 305 | } |
| 306 | |
| 307 | if (sample_size == 0) { |
| 308 | av_log(avctx, AV_LOG_ERROR, "Invalid sample_size\n"); |
| 309 | return AVERROR(EINVAL); |
| 310 | } |
| 311 | |
| 312 | if (avctx->channels == 0) { |
| 313 | av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n"); |
| 314 | return AVERROR(EINVAL); |
| 315 | } |
| 316 | |
| 317 | if (avctx->codec_id != avctx->codec->id) { |
| 318 | av_log(avctx, AV_LOG_ERROR, "codec ids mismatch\n"); |
| 319 | return AVERROR(EINVAL); |
| 320 | } |
| 321 | |
| 322 | n = avctx->channels * sample_size; |
| 323 | |
| 324 | if (n && buf_size % n) { |
| 325 | if (buf_size < n) { |
| 326 | av_log(avctx, AV_LOG_ERROR, |
| 327 | "Invalid PCM packet, data has size %d but at least a size of %d was expected\n", |
| 328 | buf_size, n); |
| 329 | return AVERROR_INVALIDDATA; |
| 330 | } else |
| 331 | buf_size -= buf_size % n; |
| 332 | } |
| 333 | |
| 334 | n = buf_size / sample_size; |
| 335 | |
| 336 | /* get output buffer */ |
| 337 | frame->nb_samples = n * samples_per_block / avctx->channels; |
| 338 | if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) |
| 339 | return ret; |
| 340 | samples = frame->data[0]; |
| 341 | |
| 342 | switch (avctx->codec_id) { |
| 343 | case AV_CODEC_ID_PCM_U32LE: |
| 344 | DECODE(32, le32, src, samples, n, 0, 0x80000000) |
| 345 | break; |
| 346 | case AV_CODEC_ID_PCM_U32BE: |
| 347 | DECODE(32, be32, src, samples, n, 0, 0x80000000) |
| 348 | break; |
| 349 | case AV_CODEC_ID_PCM_S24LE: |
| 350 | DECODE(32, le24, src, samples, n, 8, 0) |
| 351 | break; |
| 352 | case AV_CODEC_ID_PCM_S24LE_PLANAR: |
| 353 | DECODE_PLANAR(32, le24, src, samples, n, 8, 0); |
| 354 | break; |
| 355 | case AV_CODEC_ID_PCM_S24BE: |
| 356 | DECODE(32, be24, src, samples, n, 8, 0) |
| 357 | break; |
| 358 | case AV_CODEC_ID_PCM_U24LE: |
| 359 | DECODE(32, le24, src, samples, n, 8, 0x800000) |
| 360 | break; |
| 361 | case AV_CODEC_ID_PCM_U24BE: |
| 362 | DECODE(32, be24, src, samples, n, 8, 0x800000) |
| 363 | break; |
| 364 | case AV_CODEC_ID_PCM_S24DAUD: |
| 365 | for (; n > 0; n--) { |
| 366 | uint32_t v = bytestream_get_be24(&src); |
| 367 | v >>= 4; // sync flags are here |
| 368 | AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] + |
| 369 | (ff_reverse[v & 0xff] << 8)); |
| 370 | samples += 2; |
| 371 | } |
| 372 | break; |
| 373 | case AV_CODEC_ID_PCM_U16LE: |
| 374 | DECODE(16, le16, src, samples, n, 0, 0x8000) |
| 375 | break; |
| 376 | case AV_CODEC_ID_PCM_U16BE: |
| 377 | DECODE(16, be16, src, samples, n, 0, 0x8000) |
| 378 | break; |
| 379 | case AV_CODEC_ID_PCM_S8: |
| 380 | for (; n > 0; n--) |
| 381 | *samples++ = *src++ + 128; |
| 382 | break; |
| 383 | case AV_CODEC_ID_PCM_S8_PLANAR: |
| 384 | n /= avctx->channels; |
| 385 | for (c = 0; c < avctx->channels; c++) { |
| 386 | int i; |
| 387 | samples = frame->extended_data[c]; |
| 388 | for (i = n; i > 0; i--) |
| 389 | *samples++ = *src++ + 128; |
| 390 | } |
| 391 | break; |
| 392 | #if HAVE_BIGENDIAN |
| 393 | case AV_CODEC_ID_PCM_F64LE: |
| 394 | DECODE(64, le64, src, samples, n, 0, 0) |
| 395 | break; |
| 396 | case AV_CODEC_ID_PCM_S32LE: |
| 397 | case AV_CODEC_ID_PCM_F32LE: |
| 398 | DECODE(32, le32, src, samples, n, 0, 0) |
| 399 | break; |
| 400 | case AV_CODEC_ID_PCM_S32LE_PLANAR: |
| 401 | DECODE_PLANAR(32, le32, src, samples, n, 0, 0); |
| 402 | break; |
| 403 | case AV_CODEC_ID_PCM_S16LE: |
| 404 | DECODE(16, le16, src, samples, n, 0, 0) |
| 405 | break; |
| 406 | case AV_CODEC_ID_PCM_S16LE_PLANAR: |
| 407 | DECODE_PLANAR(16, le16, src, samples, n, 0, 0); |
| 408 | break; |
| 409 | case AV_CODEC_ID_PCM_F64BE: |
| 410 | case AV_CODEC_ID_PCM_F32BE: |
| 411 | case AV_CODEC_ID_PCM_S32BE: |
| 412 | case AV_CODEC_ID_PCM_S16BE: |
| 413 | #else |
| 414 | case AV_CODEC_ID_PCM_F64BE: |
| 415 | DECODE(64, be64, src, samples, n, 0, 0) |
| 416 | break; |
| 417 | case AV_CODEC_ID_PCM_F32BE: |
| 418 | case AV_CODEC_ID_PCM_S32BE: |
| 419 | DECODE(32, be32, src, samples, n, 0, 0) |
| 420 | break; |
| 421 | case AV_CODEC_ID_PCM_S16BE: |
| 422 | DECODE(16, be16, src, samples, n, 0, 0) |
| 423 | break; |
| 424 | case AV_CODEC_ID_PCM_S16BE_PLANAR: |
| 425 | DECODE_PLANAR(16, be16, src, samples, n, 0, 0); |
| 426 | break; |
| 427 | case AV_CODEC_ID_PCM_F64LE: |
| 428 | case AV_CODEC_ID_PCM_F32LE: |
| 429 | case AV_CODEC_ID_PCM_S32LE: |
| 430 | case AV_CODEC_ID_PCM_S16LE: |
| 431 | #endif /* HAVE_BIGENDIAN */ |
| 432 | case AV_CODEC_ID_PCM_U8: |
| 433 | memcpy(samples, src, n * sample_size); |
| 434 | break; |
| 435 | #if HAVE_BIGENDIAN |
| 436 | case AV_CODEC_ID_PCM_S16BE_PLANAR: |
| 437 | #else |
| 438 | case AV_CODEC_ID_PCM_S16LE_PLANAR: |
| 439 | case AV_CODEC_ID_PCM_S32LE_PLANAR: |
| 440 | #endif /* HAVE_BIGENDIAN */ |
| 441 | n /= avctx->channels; |
| 442 | for (c = 0; c < avctx->channels; c++) { |
| 443 | samples = frame->extended_data[c]; |
| 444 | bytestream_get_buffer(&src, samples, n * sample_size); |
| 445 | } |
| 446 | break; |
| 447 | case AV_CODEC_ID_PCM_ZORK: |
| 448 | for (; n > 0; n--) { |
| 449 | int v = *src++; |
| 450 | if (v < 128) |
| 451 | v = 128 - v; |
| 452 | *samples++ = v; |
| 453 | } |
| 454 | break; |
| 455 | case AV_CODEC_ID_PCM_ALAW: |
| 456 | case AV_CODEC_ID_PCM_MULAW: |
| 457 | for (; n > 0; n--) { |
| 458 | AV_WN16A(samples, s->table[*src++]); |
| 459 | samples += 2; |
| 460 | } |
| 461 | break; |
| 462 | case AV_CODEC_ID_PCM_LXF: |
| 463 | { |
| 464 | int i; |
| 465 | n /= avctx->channels; |
| 466 | for (c = 0; c < avctx->channels; c++) { |
| 467 | dst_int32_t = (int32_t *)frame->extended_data[c]; |
| 468 | for (i = 0; i < n; i++) { |
| 469 | // extract low 20 bits and expand to 32 bits |
| 470 | *dst_int32_t++ = (src[2] << 28) | |
| 471 | (src[1] << 20) | |
| 472 | (src[0] << 12) | |
| 473 | ((src[2] & 0x0F) << 8) | |
| 474 | src[1]; |
| 475 | // extract high 20 bits and expand to 32 bits |
| 476 | *dst_int32_t++ = (src[4] << 24) | |
| 477 | (src[3] << 16) | |
| 478 | ((src[2] & 0xF0) << 8) | |
| 479 | (src[4] << 4) | |
| 480 | (src[3] >> 4); |
| 481 | src += 5; |
| 482 | } |
| 483 | } |
| 484 | break; |
| 485 | } |
| 486 | default: |
| 487 | return -1; |
| 488 | } |
| 489 | |
| 490 | *got_frame_ptr = 1; |
| 491 | |
| 492 | return buf_size; |
| 493 | } |
| 494 | |
| 495 | #define PCM_ENCODER_0(id_, sample_fmt_, name_, long_name_) |
| 496 | #define PCM_ENCODER_1(id_, sample_fmt_, name_, long_name_) \ |
| 497 | AVCodec ff_ ## name_ ## _encoder = { \ |
| 498 | .name = #name_, \ |
| 499 | .long_name = NULL_IF_CONFIG_SMALL(long_name_), \ |
| 500 | .type = AVMEDIA_TYPE_AUDIO, \ |
| 501 | .id = AV_CODEC_ID_ ## id_, \ |
| 502 | .init = pcm_encode_init, \ |
| 503 | .encode2 = pcm_encode_frame, \ |
| 504 | .capabilities = CODEC_CAP_VARIABLE_FRAME_SIZE, \ |
| 505 | .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \ |
| 506 | AV_SAMPLE_FMT_NONE }, \ |
| 507 | } |
| 508 | |
| 509 | #define PCM_ENCODER_2(cf, id, sample_fmt, name, long_name) \ |
| 510 | PCM_ENCODER_ ## cf(id, sample_fmt, name, long_name) |
| 511 | #define PCM_ENCODER_3(cf, id, sample_fmt, name, long_name) \ |
| 512 | PCM_ENCODER_2(cf, id, sample_fmt, name, long_name) |
| 513 | #define PCM_ENCODER(id, sample_fmt, name, long_name) \ |
| 514 | PCM_ENCODER_3(CONFIG_ ## id ## _ENCODER, id, sample_fmt, name, long_name) |
| 515 | |
| 516 | #define PCM_DECODER_0(id, sample_fmt, name, long_name) |
| 517 | #define PCM_DECODER_1(id_, sample_fmt_, name_, long_name_) \ |
| 518 | AVCodec ff_ ## name_ ## _decoder = { \ |
| 519 | .name = #name_, \ |
| 520 | .long_name = NULL_IF_CONFIG_SMALL(long_name_), \ |
| 521 | .type = AVMEDIA_TYPE_AUDIO, \ |
| 522 | .id = AV_CODEC_ID_ ## id_, \ |
| 523 | .priv_data_size = sizeof(PCMDecode), \ |
| 524 | .init = pcm_decode_init, \ |
| 525 | .decode = pcm_decode_frame, \ |
| 526 | .capabilities = CODEC_CAP_DR1, \ |
| 527 | .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \ |
| 528 | AV_SAMPLE_FMT_NONE }, \ |
| 529 | } |
| 530 | |
| 531 | #define PCM_DECODER_2(cf, id, sample_fmt, name, long_name) \ |
| 532 | PCM_DECODER_ ## cf(id, sample_fmt, name, long_name) |
| 533 | #define PCM_DECODER_3(cf, id, sample_fmt, name, long_name) \ |
| 534 | PCM_DECODER_2(cf, id, sample_fmt, name, long_name) |
| 535 | #define PCM_DECODER(id, sample_fmt, name, long_name) \ |
| 536 | PCM_DECODER_3(CONFIG_ ## id ## _DECODER, id, sample_fmt, name, long_name) |
| 537 | |
| 538 | #define PCM_CODEC(id, sample_fmt_, name, long_name_) \ |
| 539 | PCM_ENCODER(id, sample_fmt_, name, long_name_); \ |
| 540 | PCM_DECODER(id, sample_fmt_, name, long_name_) |
| 541 | |
| 542 | /* Note: Do not forget to add new entries to the Makefile as well. */ |
| 543 | PCM_CODEC (PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law / G.711 A-law"); |
| 544 | PCM_CODEC (PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian"); |
| 545 | PCM_CODEC (PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian"); |
| 546 | PCM_CODEC (PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian"); |
| 547 | PCM_CODEC (PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian"); |
| 548 | PCM_DECODER(PCM_LXF, AV_SAMPLE_FMT_S32P,pcm_lxf, "PCM signed 20-bit little-endian planar"); |
| 549 | PCM_CODEC (PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law / G.711 mu-law"); |
| 550 | PCM_CODEC (PCM_S8, AV_SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit"); |
| 551 | PCM_CODEC (PCM_S8_PLANAR, AV_SAMPLE_FMT_U8P, pcm_s8_planar, "PCM signed 8-bit planar"); |
| 552 | PCM_CODEC (PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian"); |
| 553 | PCM_CODEC (PCM_S16BE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16be_planar, "PCM signed 16-bit big-endian planar"); |
| 554 | PCM_CODEC (PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian"); |
| 555 | PCM_CODEC (PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16le_planar, "PCM signed 16-bit little-endian planar"); |
| 556 | PCM_CODEC (PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian"); |
| 557 | PCM_CODEC (PCM_S24DAUD, AV_SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit"); |
| 558 | PCM_CODEC (PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian"); |
| 559 | PCM_CODEC (PCM_S24LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s24le_planar, "PCM signed 24-bit little-endian planar"); |
| 560 | PCM_CODEC (PCM_S32BE, AV_SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian"); |
| 561 | PCM_CODEC (PCM_S32LE, AV_SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian"); |
| 562 | PCM_CODEC (PCM_S32LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s32le_planar, "PCM signed 32-bit little-endian planar"); |
| 563 | PCM_CODEC (PCM_U8, AV_SAMPLE_FMT_U8, pcm_u8, "PCM unsigned 8-bit"); |
| 564 | PCM_CODEC (PCM_U16BE, AV_SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian"); |
| 565 | PCM_CODEC (PCM_U16LE, AV_SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian"); |
| 566 | PCM_CODEC (PCM_U24BE, AV_SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian"); |
| 567 | PCM_CODEC (PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian"); |
| 568 | PCM_CODEC (PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian"); |
| 569 | PCM_CODEC (PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian"); |
| 570 | PCM_DECODER(PCM_ZORK, AV_SAMPLE_FMT_U8, pcm_zork, "PCM Zork"); |
| 571 | |