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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 "libavutil/float_dsp.h"
29#include "avcodec.h"
30#include "bytestream.h"
31#include "internal.h"
32#include "mathops.h"
33#include "pcm_tablegen.h"
34
35static av_cold int pcm_encode_init(AVCodecContext *avctx)
36{
37 avctx->frame_size = 0;
38 switch (avctx->codec->id) {
39 case AV_CODEC_ID_PCM_ALAW:
40 pcm_alaw_tableinit();
41 break;
42 case AV_CODEC_ID_PCM_MULAW:
43 pcm_ulaw_tableinit();
44 break;
45 default:
46 break;
47 }
48
49 avctx->bits_per_coded_sample = av_get_bits_per_sample(avctx->codec->id);
50 avctx->block_align = avctx->channels * avctx->bits_per_coded_sample / 8;
51 avctx->bit_rate = avctx->block_align * 8LL * avctx->sample_rate;
52
53 return 0;
54}
55
56/**
57 * Write PCM samples macro
58 * @param type Datatype of native machine format
59 * @param endian bytestream_put_xxx() suffix
60 * @param src Source pointer (variable name)
61 * @param dst Destination pointer (variable name)
62 * @param n Total number of samples (variable name)
63 * @param shift Bitshift (bits)
64 * @param offset Sample value offset
65 */
66#define ENCODE(type, endian, src, dst, n, shift, offset) \
67 samples_ ## type = (const type *) src; \
68 for (; n > 0; n--) { \
69 register type v = (*samples_ ## type++ >> shift) + offset; \
70 bytestream_put_ ## endian(&dst, v); \
71 }
72
73#define ENCODE_PLANAR(type, endian, dst, n, shift, offset) \
74 n /= avctx->channels; \
75 for (c = 0; c < avctx->channels; c++) { \
76 int i; \
77 samples_ ## type = (const type *) frame->extended_data[c]; \
78 for (i = n; i > 0; i--) { \
79 register type v = (*samples_ ## type++ >> shift) + offset; \
80 bytestream_put_ ## endian(&dst, v); \
81 } \
82 }
83
84static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
85 const AVFrame *frame, int *got_packet_ptr)
86{
87 int n, c, sample_size, v, ret;
88 const short *samples;
89 unsigned char *dst;
90 const uint8_t *samples_uint8_t;
91 const int16_t *samples_int16_t;
92 const int32_t *samples_int32_t;
93 const int64_t *samples_int64_t;
94 const uint16_t *samples_uint16_t;
95 const uint32_t *samples_uint32_t;
96
97 sample_size = av_get_bits_per_sample(avctx->codec->id) / 8;
98 n = frame->nb_samples * avctx->channels;
99 samples = (const short *)frame->data[0];
100
101 if ((ret = ff_alloc_packet2(avctx, avpkt, n * sample_size, n * sample_size)) < 0)
102 return ret;
103 dst = avpkt->data;
104
105 switch (avctx->codec->id) {
106 case AV_CODEC_ID_PCM_U32LE:
107 ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000)
108 break;
109 case AV_CODEC_ID_PCM_U32BE:
110 ENCODE(uint32_t, be32, samples, dst, n, 0, 0x80000000)
111 break;
112 case AV_CODEC_ID_PCM_S24LE:
113 ENCODE(int32_t, le24, samples, dst, n, 8, 0)
114 break;
115 case AV_CODEC_ID_PCM_S24LE_PLANAR:
116 ENCODE_PLANAR(int32_t, le24, dst, n, 8, 0)
117 break;
118 case AV_CODEC_ID_PCM_S24BE:
119 ENCODE(int32_t, be24, samples, dst, n, 8, 0)
120 break;
121 case AV_CODEC_ID_PCM_U24LE:
122 ENCODE(uint32_t, le24, samples, dst, n, 8, 0x800000)
123 break;
124 case AV_CODEC_ID_PCM_U24BE:
125 ENCODE(uint32_t, be24, samples, dst, n, 8, 0x800000)
126 break;
127 case AV_CODEC_ID_PCM_S24DAUD:
128 for (; n > 0; n--) {
129 uint32_t tmp = ff_reverse[(*samples >> 8) & 0xff] +
130 (ff_reverse[*samples & 0xff] << 8);
131 tmp <<= 4; // sync flags would go here
132 bytestream_put_be24(&dst, tmp);
133 samples++;
134 }
135 break;
136 case AV_CODEC_ID_PCM_U16LE:
137 ENCODE(uint16_t, le16, samples, dst, n, 0, 0x8000)
138 break;
139 case AV_CODEC_ID_PCM_U16BE:
140 ENCODE(uint16_t, be16, samples, dst, n, 0, 0x8000)
141 break;
142 case AV_CODEC_ID_PCM_S8:
143 ENCODE(uint8_t, byte, samples, dst, n, 0, -128)
144 break;
145 case AV_CODEC_ID_PCM_S8_PLANAR:
146 ENCODE_PLANAR(uint8_t, byte, dst, n, 0, -128)
147 break;
148#if HAVE_BIGENDIAN
149 case AV_CODEC_ID_PCM_S64LE:
150 case AV_CODEC_ID_PCM_F64LE:
151 ENCODE(int64_t, le64, samples, dst, n, 0, 0)
152 break;
153 case AV_CODEC_ID_PCM_S32LE:
154 case AV_CODEC_ID_PCM_F32LE:
155 ENCODE(int32_t, le32, samples, dst, n, 0, 0)
156 break;
157 case AV_CODEC_ID_PCM_S32LE_PLANAR:
158 ENCODE_PLANAR(int32_t, le32, dst, n, 0, 0)
159 break;
160 case AV_CODEC_ID_PCM_S16LE:
161 ENCODE(int16_t, le16, samples, dst, n, 0, 0)
162 break;
163 case AV_CODEC_ID_PCM_S16LE_PLANAR:
164 ENCODE_PLANAR(int16_t, le16, dst, n, 0, 0)
165 break;
166 case AV_CODEC_ID_PCM_F64BE:
167 case AV_CODEC_ID_PCM_F32BE:
168 case AV_CODEC_ID_PCM_S64BE:
169 case AV_CODEC_ID_PCM_S32BE:
170 case AV_CODEC_ID_PCM_S16BE:
171#else
172 case AV_CODEC_ID_PCM_S64BE:
173 case AV_CODEC_ID_PCM_F64BE:
174 ENCODE(int64_t, be64, samples, dst, n, 0, 0)
175 break;
176 case AV_CODEC_ID_PCM_F32BE:
177 case AV_CODEC_ID_PCM_S32BE:
178 ENCODE(int32_t, be32, samples, dst, n, 0, 0)
179 break;
180 case AV_CODEC_ID_PCM_S16BE:
181 ENCODE(int16_t, be16, samples, dst, n, 0, 0)
182 break;
183 case AV_CODEC_ID_PCM_S16BE_PLANAR:
184 ENCODE_PLANAR(int16_t, be16, dst, n, 0, 0)
185 break;
186 case AV_CODEC_ID_PCM_F64LE:
187 case AV_CODEC_ID_PCM_F32LE:
188 case AV_CODEC_ID_PCM_S64LE:
189 case AV_CODEC_ID_PCM_S32LE:
190 case AV_CODEC_ID_PCM_S16LE:
191#endif /* HAVE_BIGENDIAN */
192 case AV_CODEC_ID_PCM_U8:
193 memcpy(dst, samples, n * sample_size);
194 break;
195#if HAVE_BIGENDIAN
196 case AV_CODEC_ID_PCM_S16BE_PLANAR:
197#else
198 case AV_CODEC_ID_PCM_S16LE_PLANAR:
199 case AV_CODEC_ID_PCM_S32LE_PLANAR:
200#endif /* HAVE_BIGENDIAN */
201 n /= avctx->channels;
202 for (c = 0; c < avctx->channels; c++) {
203 const uint8_t *src = frame->extended_data[c];
204 bytestream_put_buffer(&dst, src, n * sample_size);
205 }
206 break;
207 case AV_CODEC_ID_PCM_ALAW:
208 for (; n > 0; n--) {
209 v = *samples++;
210 *dst++ = linear_to_alaw[(v + 32768) >> 2];
211 }
212 break;
213 case AV_CODEC_ID_PCM_MULAW:
214 for (; n > 0; n--) {
215 v = *samples++;
216 *dst++ = linear_to_ulaw[(v + 32768) >> 2];
217 }
218 break;
219 default:
220 return -1;
221 }
222
223 *got_packet_ptr = 1;
224 return 0;
225}
226
227typedef struct PCMDecode {
228 short table[256];
229 AVFloatDSPContext *fdsp;
230 float scale;
231} PCMDecode;
232
233static av_cold int pcm_decode_init(AVCodecContext *avctx)
234{
235 PCMDecode *s = avctx->priv_data;
236 int i;
237
238 if (avctx->channels <= 0) {
239 av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n");
240 return AVERROR(EINVAL);
241 }
242
243 switch (avctx->codec_id) {
244 case AV_CODEC_ID_PCM_ALAW:
245 for (i = 0; i < 256; i++)
246 s->table[i] = alaw2linear(i);
247 break;
248 case AV_CODEC_ID_PCM_MULAW:
249 for (i = 0; i < 256; i++)
250 s->table[i] = ulaw2linear(i);
251 break;
252 case AV_CODEC_ID_PCM_F16LE:
253 case AV_CODEC_ID_PCM_F24LE:
254 s->scale = 1. / (1 << (avctx->bits_per_coded_sample - 1));
255 s->fdsp = avpriv_float_dsp_alloc(0);
256 if (!s->fdsp)
257 return AVERROR(ENOMEM);
258 break;
259 default:
260 break;
261 }
262
263 avctx->sample_fmt = avctx->codec->sample_fmts[0];
264
265 if (avctx->sample_fmt == AV_SAMPLE_FMT_S32)
266 avctx->bits_per_raw_sample = av_get_bits_per_sample(avctx->codec_id);
267
268 return 0;
269}
270
271static av_cold int pcm_decode_close(AVCodecContext *avctx)
272{
273 PCMDecode *s = avctx->priv_data;
274
275 av_freep(&s->fdsp);
276
277 return 0;
278}
279
280/**
281 * Read PCM samples macro
282 * @param size Data size of native machine format
283 * @param endian bytestream_get_xxx() endian suffix
284 * @param src Source pointer (variable name)
285 * @param dst Destination pointer (variable name)
286 * @param n Total number of samples (variable name)
287 * @param shift Bitshift (bits)
288 * @param offset Sample value offset
289 */
290#define DECODE(size, endian, src, dst, n, shift, offset) \
291 for (; n > 0; n--) { \
292 uint ## size ## _t v = bytestream_get_ ## endian(&src); \
293 AV_WN ## size ## A(dst, (v - offset) << shift); \
294 dst += size / 8; \
295 }
296
297#define DECODE_PLANAR(size, endian, src, dst, n, shift, offset) \
298 n /= avctx->channels; \
299 for (c = 0; c < avctx->channels; c++) { \
300 int i; \
301 dst = frame->extended_data[c]; \
302 for (i = n; i > 0; i--) { \
303 uint ## size ## _t v = bytestream_get_ ## endian(&src); \
304 AV_WN ## size ## A(dst, (v - offset) << shift); \
305 dst += size / 8; \
306 } \
307 }
308
309static int pcm_decode_frame(AVCodecContext *avctx, void *data,
310 int *got_frame_ptr, AVPacket *avpkt)
311{
312 const uint8_t *src = avpkt->data;
313 int buf_size = avpkt->size;
314 PCMDecode *s = avctx->priv_data;
315 AVFrame *frame = data;
316 int sample_size, c, n, ret, samples_per_block;
317 uint8_t *samples;
318 int32_t *dst_int32_t;
319
320 sample_size = av_get_bits_per_sample(avctx->codec_id) / 8;
321
322 /* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */
323 samples_per_block = 1;
324 if (avctx->codec_id == AV_CODEC_ID_PCM_LXF) {
325 /* we process 40-bit blocks per channel for LXF */
326 samples_per_block = 2;
327 sample_size = 5;
328 }
329
330 if (sample_size == 0) {
331 av_log(avctx, AV_LOG_ERROR, "Invalid sample_size\n");
332 return AVERROR(EINVAL);
333 }
334
335 if (avctx->channels == 0) {
336 av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
337 return AVERROR(EINVAL);
338 }
339
340 if (avctx->codec_id != avctx->codec->id) {
341 av_log(avctx, AV_LOG_ERROR, "codec ids mismatch\n");
342 return AVERROR(EINVAL);
343 }
344
345 n = avctx->channels * sample_size;
346
347 if (n && buf_size % n) {
348 if (buf_size < n) {
349 av_log(avctx, AV_LOG_ERROR,
350 "Invalid PCM packet, data has size %d but at least a size of %d was expected\n",
351 buf_size, n);
352 return AVERROR_INVALIDDATA;
353 } else
354 buf_size -= buf_size % n;
355 }
356
357 n = buf_size / sample_size;
358
359 /* get output buffer */
360 frame->nb_samples = n * samples_per_block / avctx->channels;
361 if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
362 return ret;
363 samples = frame->data[0];
364
365 switch (avctx->codec_id) {
366 case AV_CODEC_ID_PCM_U32LE:
367 DECODE(32, le32, src, samples, n, 0, 0x80000000)
368 break;
369 case AV_CODEC_ID_PCM_U32BE:
370 DECODE(32, be32, src, samples, n, 0, 0x80000000)
371 break;
372 case AV_CODEC_ID_PCM_S24LE:
373 DECODE(32, le24, src, samples, n, 8, 0)
374 break;
375 case AV_CODEC_ID_PCM_S24LE_PLANAR:
376 DECODE_PLANAR(32, le24, src, samples, n, 8, 0);
377 break;
378 case AV_CODEC_ID_PCM_S24BE:
379 DECODE(32, be24, src, samples, n, 8, 0)
380 break;
381 case AV_CODEC_ID_PCM_U24LE:
382 DECODE(32, le24, src, samples, n, 8, 0x800000)
383 break;
384 case AV_CODEC_ID_PCM_U24BE:
385 DECODE(32, be24, src, samples, n, 8, 0x800000)
386 break;
387 case AV_CODEC_ID_PCM_S24DAUD:
388 for (; n > 0; n--) {
389 uint32_t v = bytestream_get_be24(&src);
390 v >>= 4; // sync flags are here
391 AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] +
392 (ff_reverse[v & 0xff] << 8));
393 samples += 2;
394 }
395 break;
396 case AV_CODEC_ID_PCM_U16LE:
397 DECODE(16, le16, src, samples, n, 0, 0x8000)
398 break;
399 case AV_CODEC_ID_PCM_U16BE:
400 DECODE(16, be16, src, samples, n, 0, 0x8000)
401 break;
402 case AV_CODEC_ID_PCM_S8:
403 for (; n > 0; n--)
404 *samples++ = *src++ + 128;
405 break;
406 case AV_CODEC_ID_PCM_S8_PLANAR:
407 n /= avctx->channels;
408 for (c = 0; c < avctx->channels; c++) {
409 int i;
410 samples = frame->extended_data[c];
411 for (i = n; i > 0; i--)
412 *samples++ = *src++ + 128;
413 }
414 break;
415#if HAVE_BIGENDIAN
416 case AV_CODEC_ID_PCM_S64LE:
417 case AV_CODEC_ID_PCM_F64LE:
418 DECODE(64, le64, src, samples, n, 0, 0)
419 break;
420 case AV_CODEC_ID_PCM_S32LE:
421 case AV_CODEC_ID_PCM_F32LE:
422 case AV_CODEC_ID_PCM_F24LE:
423 case AV_CODEC_ID_PCM_F16LE:
424 DECODE(32, le32, src, samples, n, 0, 0)
425 break;
426 case AV_CODEC_ID_PCM_S32LE_PLANAR:
427 DECODE_PLANAR(32, le32, src, samples, n, 0, 0);
428 break;
429 case AV_CODEC_ID_PCM_S16LE:
430 DECODE(16, le16, src, samples, n, 0, 0)
431 break;
432 case AV_CODEC_ID_PCM_S16LE_PLANAR:
433 DECODE_PLANAR(16, le16, src, samples, n, 0, 0);
434 break;
435 case AV_CODEC_ID_PCM_F64BE:
436 case AV_CODEC_ID_PCM_F32BE:
437 case AV_CODEC_ID_PCM_S64BE:
438 case AV_CODEC_ID_PCM_S32BE:
439 case AV_CODEC_ID_PCM_S16BE:
440#else
441 case AV_CODEC_ID_PCM_S64BE:
442 case AV_CODEC_ID_PCM_F64BE:
443 DECODE(64, be64, src, samples, n, 0, 0)
444 break;
445 case AV_CODEC_ID_PCM_F32BE:
446 case AV_CODEC_ID_PCM_S32BE:
447 DECODE(32, be32, src, samples, n, 0, 0)
448 break;
449 case AV_CODEC_ID_PCM_S16BE:
450 DECODE(16, be16, src, samples, n, 0, 0)
451 break;
452 case AV_CODEC_ID_PCM_S16BE_PLANAR:
453 DECODE_PLANAR(16, be16, src, samples, n, 0, 0);
454 break;
455 case AV_CODEC_ID_PCM_F64LE:
456 case AV_CODEC_ID_PCM_F32LE:
457 case AV_CODEC_ID_PCM_F24LE:
458 case AV_CODEC_ID_PCM_F16LE:
459 case AV_CODEC_ID_PCM_S64LE:
460 case AV_CODEC_ID_PCM_S32LE:
461 case AV_CODEC_ID_PCM_S16LE:
462#endif /* HAVE_BIGENDIAN */
463 case AV_CODEC_ID_PCM_U8:
464 memcpy(samples, src, n * sample_size);
465 break;
466#if HAVE_BIGENDIAN
467 case AV_CODEC_ID_PCM_S16BE_PLANAR:
468#else
469 case AV_CODEC_ID_PCM_S16LE_PLANAR:
470 case AV_CODEC_ID_PCM_S32LE_PLANAR:
471#endif /* HAVE_BIGENDIAN */
472 n /= avctx->channels;
473 for (c = 0; c < avctx->channels; c++) {
474 samples = frame->extended_data[c];
475 bytestream_get_buffer(&src, samples, n * sample_size);
476 }
477 break;
478 case AV_CODEC_ID_PCM_ZORK:
479 for (; n > 0; n--) {
480 int v = *src++;
481 if (v < 128)
482 v = 128 - v;
483 *samples++ = v;
484 }
485 break;
486 case AV_CODEC_ID_PCM_ALAW:
487 case AV_CODEC_ID_PCM_MULAW:
488 for (; n > 0; n--) {
489 AV_WN16A(samples, s->table[*src++]);
490 samples += 2;
491 }
492 break;
493 case AV_CODEC_ID_PCM_LXF:
494 {
495 int i;
496 n /= avctx->channels;
497 for (c = 0; c < avctx->channels; c++) {
498 dst_int32_t = (int32_t *)frame->extended_data[c];
499 for (i = 0; i < n; i++) {
500 // extract low 20 bits and expand to 32 bits
501 *dst_int32_t++ = (src[2] << 28) |
502 (src[1] << 20) |
503 (src[0] << 12) |
504 ((src[2] & 0x0F) << 8) |
505 src[1];
506 // extract high 20 bits and expand to 32 bits
507 *dst_int32_t++ = (src[4] << 24) |
508 (src[3] << 16) |
509 ((src[2] & 0xF0) << 8) |
510 (src[4] << 4) |
511 (src[3] >> 4);
512 src += 5;
513 }
514 }
515 break;
516 }
517 default:
518 return -1;
519 }
520
521 if (avctx->codec_id == AV_CODEC_ID_PCM_F16LE ||
522 avctx->codec_id == AV_CODEC_ID_PCM_F24LE) {
523 s->fdsp->vector_fmul_scalar((float *)frame->extended_data[0],
524 (const float *)frame->extended_data[0],
525 s->scale, FFALIGN(frame->nb_samples * avctx->channels, 4));
526 emms_c();
527 }
528
529 *got_frame_ptr = 1;
530
531 return buf_size;
532}
533
534#define PCM_ENCODER_0(id_, sample_fmt_, name_, long_name_)
535#define PCM_ENCODER_1(id_, sample_fmt_, name_, long_name_) \
536AVCodec ff_ ## name_ ## _encoder = { \
537 .name = #name_, \
538 .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
539 .type = AVMEDIA_TYPE_AUDIO, \
540 .id = AV_CODEC_ID_ ## id_, \
541 .init = pcm_encode_init, \
542 .encode2 = pcm_encode_frame, \
543 .capabilities = AV_CODEC_CAP_VARIABLE_FRAME_SIZE, \
544 .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
545 AV_SAMPLE_FMT_NONE }, \
546}
547
548#define PCM_ENCODER_2(cf, id, sample_fmt, name, long_name) \
549 PCM_ENCODER_ ## cf(id, sample_fmt, name, long_name)
550#define PCM_ENCODER_3(cf, id, sample_fmt, name, long_name) \
551 PCM_ENCODER_2(cf, id, sample_fmt, name, long_name)
552#define PCM_ENCODER(id, sample_fmt, name, long_name) \
553 PCM_ENCODER_3(CONFIG_ ## id ## _ENCODER, id, sample_fmt, name, long_name)
554
555#define PCM_DECODER_0(id, sample_fmt, name, long_name)
556#define PCM_DECODER_1(id_, sample_fmt_, name_, long_name_) \
557AVCodec ff_ ## name_ ## _decoder = { \
558 .name = #name_, \
559 .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
560 .type = AVMEDIA_TYPE_AUDIO, \
561 .id = AV_CODEC_ID_ ## id_, \
562 .priv_data_size = sizeof(PCMDecode), \
563 .init = pcm_decode_init, \
564 .close = pcm_decode_close, \
565 .decode = pcm_decode_frame, \
566 .capabilities = AV_CODEC_CAP_DR1, \
567 .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
568 AV_SAMPLE_FMT_NONE }, \
569}
570
571#define PCM_DECODER_2(cf, id, sample_fmt, name, long_name) \
572 PCM_DECODER_ ## cf(id, sample_fmt, name, long_name)
573#define PCM_DECODER_3(cf, id, sample_fmt, name, long_name) \
574 PCM_DECODER_2(cf, id, sample_fmt, name, long_name)
575#define PCM_DECODER(id, sample_fmt, name, long_name) \
576 PCM_DECODER_3(CONFIG_ ## id ## _DECODER, id, sample_fmt, name, long_name)
577
578#define PCM_CODEC(id, sample_fmt_, name, long_name_) \
579 PCM_ENCODER(id, sample_fmt_, name, long_name_); \
580 PCM_DECODER(id, sample_fmt_, name, long_name_)
581
582/* Note: Do not forget to add new entries to the Makefile as well. */
583PCM_CODEC (PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law / G.711 A-law");
584PCM_DECODER(PCM_F16LE, AV_SAMPLE_FMT_FLT, pcm_f16le, "PCM 16.8 floating point little-endian");
585PCM_DECODER(PCM_F24LE, AV_SAMPLE_FMT_FLT, pcm_f24le, "PCM 24.0 floating point little-endian");
586PCM_CODEC (PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian");
587PCM_CODEC (PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian");
588PCM_CODEC (PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian");
589PCM_CODEC (PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian");
590PCM_DECODER(PCM_LXF, AV_SAMPLE_FMT_S32P,pcm_lxf, "PCM signed 20-bit little-endian planar");
591PCM_CODEC (PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law / G.711 mu-law");
592PCM_CODEC (PCM_S8, AV_SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit");
593PCM_CODEC (PCM_S8_PLANAR, AV_SAMPLE_FMT_U8P, pcm_s8_planar, "PCM signed 8-bit planar");
594PCM_CODEC (PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian");
595PCM_CODEC (PCM_S16BE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16be_planar, "PCM signed 16-bit big-endian planar");
596PCM_CODEC (PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian");
597PCM_CODEC (PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16le_planar, "PCM signed 16-bit little-endian planar");
598PCM_CODEC (PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian");
599PCM_CODEC (PCM_S24DAUD, AV_SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit");
600PCM_CODEC (PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian");
601PCM_CODEC (PCM_S24LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s24le_planar, "PCM signed 24-bit little-endian planar");
602PCM_CODEC (PCM_S32BE, AV_SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian");
603PCM_CODEC (PCM_S32LE, AV_SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian");
604PCM_CODEC (PCM_S32LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s32le_planar, "PCM signed 32-bit little-endian planar");
605PCM_CODEC (PCM_U8, AV_SAMPLE_FMT_U8, pcm_u8, "PCM unsigned 8-bit");
606PCM_CODEC (PCM_U16BE, AV_SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian");
607PCM_CODEC (PCM_U16LE, AV_SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian");
608PCM_CODEC (PCM_U24BE, AV_SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian");
609PCM_CODEC (PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian");
610PCM_CODEC (PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian");
611PCM_CODEC (PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian");
612PCM_DECODER(PCM_ZORK, AV_SAMPLE_FMT_U8, pcm_zork, "PCM Zork");
613PCM_CODEC (PCM_S64BE, AV_SAMPLE_FMT_S64, pcm_s64be, "PCM signed 64-bit big-endian");
614PCM_CODEC (PCM_S64LE, AV_SAMPLE_FMT_S64, pcm_s64le, "PCM signed 64-bit little-endian");
615
generated by cgit at 2024-05-17 03:43:01 (GMT)