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pcm.c
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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 "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  avctx->coded_frame = avcodec_alloc_frame();
52  if (!avctx->coded_frame)
53  return AVERROR(ENOMEM);
54 
55  return 0;
56 }
57 
58 static av_cold int pcm_encode_close(AVCodecContext *avctx)
59 {
60  av_freep(&avctx->coded_frame);
61 
62  return 0;
63 }
64 
65 /**
66  * Write PCM samples macro
67  * @param type Datatype of native machine format
68  * @param endian bytestream_put_xxx() suffix
69  * @param src Source pointer (variable name)
70  * @param dst Destination pointer (variable name)
71  * @param n Total number of samples (variable name)
72  * @param shift Bitshift (bits)
73  * @param offset Sample value offset
74  */
75 #define ENCODE(type, endian, src, dst, n, shift, offset) \
76  samples_ ## type = (const type *) src; \
77  for (; n > 0; n--) { \
78  register type v = (*samples_ ## type++ >> shift) + offset; \
79  bytestream_put_ ## endian(&dst, v); \
80  }
81 
82 #define ENCODE_PLANAR(type, endian, dst, n, shift, offset) \
83  n /= avctx->channels; \
84  for (c = 0; c < avctx->channels; c++) { \
85  int i; \
86  samples_ ## type = (const type *) frame->extended_data[c]; \
87  for (i = n; i > 0; i--) { \
88  register type v = (*samples_ ## type++ >> shift) + offset; \
89  bytestream_put_ ## endian(&dst, v); \
90  } \
91  }
92 
93 static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
94  const AVFrame *frame, int *got_packet_ptr)
95 {
96  int n, c, sample_size, v, ret;
97  const short *samples;
98  unsigned char *dst;
99  const uint8_t *samples_uint8_t;
100  const int16_t *samples_int16_t;
101  const int32_t *samples_int32_t;
102  const int64_t *samples_int64_t;
103  const uint16_t *samples_uint16_t;
104  const uint32_t *samples_uint32_t;
105 
106  sample_size = av_get_bits_per_sample(avctx->codec->id) / 8;
107  n = frame->nb_samples * avctx->channels;
108  samples = (const short *)frame->data[0];
109 
110  if ((ret = ff_alloc_packet2(avctx, avpkt, n * sample_size)) < 0)
111  return ret;
112  dst = avpkt->data;
113 
114  switch (avctx->codec->id) {
115  case AV_CODEC_ID_PCM_U32LE:
116  ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000)
117  break;
118  case AV_CODEC_ID_PCM_U32BE:
119  ENCODE(uint32_t, be32, samples, dst, n, 0, 0x80000000)
120  break;
121  case AV_CODEC_ID_PCM_S24LE:
122  ENCODE(int32_t, le24, samples, dst, n, 8, 0)
123  break;
124  case AV_CODEC_ID_PCM_S24LE_PLANAR:
125  ENCODE_PLANAR(int32_t, le24, dst, n, 8, 0)
126  break;
127  case AV_CODEC_ID_PCM_S24BE:
128  ENCODE(int32_t, be24, samples, dst, n, 8, 0)
129  break;
130  case AV_CODEC_ID_PCM_U24LE:
131  ENCODE(uint32_t, le24, samples, dst, n, 8, 0x800000)
132  break;
133  case AV_CODEC_ID_PCM_U24BE:
134  ENCODE(uint32_t, be24, samples, dst, n, 8, 0x800000)
135  break;
136  case AV_CODEC_ID_PCM_S24DAUD:
137  for (; n > 0; n--) {
138  uint32_t tmp = ff_reverse[(*samples >> 8) & 0xff] +
139  (ff_reverse[*samples & 0xff] << 8);
140  tmp <<= 4; // sync flags would go here
141  bytestream_put_be24(&dst, tmp);
142  samples++;
143  }
144  break;
145  case AV_CODEC_ID_PCM_U16LE:
146  ENCODE(uint16_t, le16, samples, dst, n, 0, 0x8000)
147  break;
148  case AV_CODEC_ID_PCM_U16BE:
149  ENCODE(uint16_t, be16, samples, dst, n, 0, 0x8000)
150  break;
151  case AV_CODEC_ID_PCM_S8:
152  ENCODE(uint8_t, byte, samples, dst, n, 0, -128)
153  break;
154  case AV_CODEC_ID_PCM_S8_PLANAR:
155  ENCODE_PLANAR(uint8_t, byte, dst, n, 0, -128)
156  break;
157 #if HAVE_BIGENDIAN
158  case AV_CODEC_ID_PCM_F64LE:
159  ENCODE(int64_t, le64, samples, dst, n, 0, 0)
160  break;
161  case AV_CODEC_ID_PCM_S32LE:
162  case AV_CODEC_ID_PCM_F32LE:
163  ENCODE(int32_t, le32, samples, dst, n, 0, 0)
164  break;
165  case AV_CODEC_ID_PCM_S32LE_PLANAR:
166  ENCODE_PLANAR(int32_t, le32, dst, n, 0, 0)
167  break;
168  case AV_CODEC_ID_PCM_S16LE:
169  ENCODE(int16_t, le16, samples, dst, n, 0, 0)
170  break;
171  case AV_CODEC_ID_PCM_S16LE_PLANAR:
172  ENCODE_PLANAR(int16_t, le16, dst, n, 0, 0)
173  break;
174  case AV_CODEC_ID_PCM_F64BE:
175  case AV_CODEC_ID_PCM_F32BE:
176  case AV_CODEC_ID_PCM_S32BE:
177  case AV_CODEC_ID_PCM_S16BE:
178 #else
179  case AV_CODEC_ID_PCM_F64BE:
180  ENCODE(int64_t, be64, samples, dst, n, 0, 0)
181  break;
182  case AV_CODEC_ID_PCM_F32BE:
183  case AV_CODEC_ID_PCM_S32BE:
184  ENCODE(int32_t, be32, samples, dst, n, 0, 0)
185  break;
186  case AV_CODEC_ID_PCM_S16BE:
187  ENCODE(int16_t, be16, samples, dst, n, 0, 0)
188  break;
189  case AV_CODEC_ID_PCM_S16BE_PLANAR:
190  ENCODE_PLANAR(int16_t, be16, dst, n, 0, 0)
191  break;
192  case AV_CODEC_ID_PCM_F64LE:
193  case AV_CODEC_ID_PCM_F32LE:
194  case AV_CODEC_ID_PCM_S32LE:
195  case AV_CODEC_ID_PCM_S16LE:
196 #endif /* HAVE_BIGENDIAN */
197  case AV_CODEC_ID_PCM_U8:
198  memcpy(dst, samples, n * sample_size);
199  break;
200 #if HAVE_BIGENDIAN
201  case AV_CODEC_ID_PCM_S16BE_PLANAR:
202 #else
203  case AV_CODEC_ID_PCM_S16LE_PLANAR:
204  case AV_CODEC_ID_PCM_S32LE_PLANAR:
205 #endif /* HAVE_BIGENDIAN */
206  n /= avctx->channels;
207  for (c = 0; c < avctx->channels; c++) {
208  const uint8_t *src = frame->extended_data[c];
209  bytestream_put_buffer(&dst, src, n * sample_size);
210  }
211  break;
212  case AV_CODEC_ID_PCM_ALAW:
213  for (; n > 0; n--) {
214  v = *samples++;
215  *dst++ = linear_to_alaw[(v + 32768) >> 2];
216  }
217  break;
218  case AV_CODEC_ID_PCM_MULAW:
219  for (; n > 0; n--) {
220  v = *samples++;
221  *dst++ = linear_to_ulaw[(v + 32768) >> 2];
222  }
223  break;
224  default:
225  return -1;
226  }
227 
228  *got_packet_ptr = 1;
229  return 0;
230 }
231 
232 typedef struct PCMDecode {
233  short table[256];
234 } PCMDecode;
235 
236 static av_cold int pcm_decode_init(AVCodecContext *avctx)
237 {
238  PCMDecode *s = avctx->priv_data;
239  int i;
240 
241  if (avctx->channels <= 0) {
242  av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n");
243  return AVERROR(EINVAL);
244  }
245 
246  switch (avctx->codec_id) {
247  case AV_CODEC_ID_PCM_ALAW:
248  for (i = 0; i < 256; i++)
249  s->table[i] = alaw2linear(i);
250  break;
251  case AV_CODEC_ID_PCM_MULAW:
252  for (i = 0; i < 256; i++)
253  s->table[i] = ulaw2linear(i);
254  break;
255  default:
256  break;
257  }
258 
259  avctx->sample_fmt = avctx->codec->sample_fmts[0];
260 
261  if (avctx->sample_fmt == AV_SAMPLE_FMT_S32)
262  avctx->bits_per_raw_sample = av_get_bits_per_sample(avctx->codec_id);
263 
264  return 0;
265 }
266 
267 /**
268  * Read PCM samples macro
269  * @param size Data size of native machine format
270  * @param endian bytestream_get_xxx() endian suffix
271  * @param src Source pointer (variable name)
272  * @param dst Destination pointer (variable name)
273  * @param n Total number of samples (variable name)
274  * @param shift Bitshift (bits)
275  * @param offset Sample value offset
276  */
277 #define DECODE(size, endian, src, dst, n, shift, offset) \
278  for (; n > 0; n--) { \
279  uint ## size ## _t v = bytestream_get_ ## endian(&src); \
280  AV_WN ## size ## A(dst, (v - offset) << shift); \
281  dst += size / 8; \
282  }
283 
284 #define DECODE_PLANAR(size, endian, src, dst, n, shift, offset) \
285  n /= avctx->channels; \
286  for (c = 0; c < avctx->channels; c++) { \
287  int i; \
288  dst = frame->extended_data[c]; \
289  for (i = n; i > 0; i--) { \
290  uint ## size ## _t v = bytestream_get_ ## endian(&src); \
291  AV_WN ## size ## A(dst, (v - offset) << shift); \
292  dst += size / 8; \
293  } \
294  }
295 
296 static int pcm_decode_frame(AVCodecContext *avctx, void *data,
297  int *got_frame_ptr, AVPacket *avpkt)
298 {
299  const uint8_t *src = avpkt->data;
300  int buf_size = avpkt->size;
301  PCMDecode *s = avctx->priv_data;
302  AVFrame *frame = data;
303  int sample_size, c, n, ret, samples_per_block;
304  uint8_t *samples;
305  int32_t *dst_int32_t;
306 
307  sample_size = av_get_bits_per_sample(avctx->codec_id) / 8;
308 
309  /* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */
310  samples_per_block = 1;
311  if (AV_CODEC_ID_PCM_DVD == avctx->codec_id) {
312  if (avctx->bits_per_coded_sample != 20 &&
313  avctx->bits_per_coded_sample != 24) {
314  av_log(avctx, AV_LOG_ERROR,
315  "PCM DVD unsupported sample depth %i\n",
316  avctx->bits_per_coded_sample);
317  return AVERROR(EINVAL);
318  }
319  /* 2 samples are interleaved per block in PCM_DVD */
320  samples_per_block = 2;
321  sample_size = avctx->bits_per_coded_sample * 2 / 8;
322  } else if (avctx->codec_id == AV_CODEC_ID_PCM_LXF) {
323  /* we process 40-bit blocks per channel for LXF */
324  samples_per_block = 2;
325  sample_size = 5;
326  }
327 
328  if (sample_size == 0) {
329  av_log(avctx, AV_LOG_ERROR, "Invalid sample_size\n");
330  return AVERROR(EINVAL);
331  }
332 
333  if (avctx->channels == 0) {
334  av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
335  return AVERROR(EINVAL);
336  }
337 
338  if (avctx->codec_id != avctx->codec->id) {
339  av_log(avctx, AV_LOG_ERROR, "codec ids mismatch\n");
340  return AVERROR(EINVAL);
341  }
342 
343  n = avctx->channels * sample_size;
344 
345  if (n && buf_size % n) {
346  if (buf_size < n) {
347  av_log(avctx, AV_LOG_ERROR,
348  "Invalid PCM packet, data has size %d but at least a size of %d was expected\n",
349  buf_size, n);
350  return AVERROR_INVALIDDATA;
351  } else
352  buf_size -= buf_size % n;
353  }
354 
355  n = buf_size / sample_size;
356 
357  /* get output buffer */
358  frame->nb_samples = n * samples_per_block / avctx->channels;
359  if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
360  return ret;
361  samples = frame->data[0];
362 
363  switch (avctx->codec_id) {
364  case AV_CODEC_ID_PCM_U32LE:
365  DECODE(32, le32, src, samples, n, 0, 0x80000000)
366  break;
367  case AV_CODEC_ID_PCM_U32BE:
368  DECODE(32, be32, src, samples, n, 0, 0x80000000)
369  break;
370  case AV_CODEC_ID_PCM_S24LE:
371  DECODE(32, le24, src, samples, n, 8, 0)
372  break;
373  case AV_CODEC_ID_PCM_S24LE_PLANAR:
374  DECODE_PLANAR(32, le24, src, samples, n, 8, 0);
375  break;
376  case AV_CODEC_ID_PCM_S24BE:
377  DECODE(32, be24, src, samples, n, 8, 0)
378  break;
379  case AV_CODEC_ID_PCM_U24LE:
380  DECODE(32, le24, src, samples, n, 8, 0x800000)
381  break;
382  case AV_CODEC_ID_PCM_U24BE:
383  DECODE(32, be24, src, samples, n, 8, 0x800000)
384  break;
385  case AV_CODEC_ID_PCM_S24DAUD:
386  for (; n > 0; n--) {
387  uint32_t v = bytestream_get_be24(&src);
388  v >>= 4; // sync flags are here
389  AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] +
390  (ff_reverse[v & 0xff] << 8));
391  samples += 2;
392  }
393  break;
394  case AV_CODEC_ID_PCM_U16LE:
395  DECODE(16, le16, src, samples, n, 0, 0x8000)
396  break;
397  case AV_CODEC_ID_PCM_U16BE:
398  DECODE(16, be16, src, samples, n, 0, 0x8000)
399  break;
400  case AV_CODEC_ID_PCM_S8:
401  for (; n > 0; n--)
402  *samples++ = *src++ + 128;
403  break;
404  case AV_CODEC_ID_PCM_S8_PLANAR:
405  n /= avctx->channels;
406  for (c = 0; c < avctx->channels; c++) {
407  int i;
408  samples = frame->extended_data[c];
409  for (i = n; i > 0; i--)
410  *samples++ = *src++ + 128;
411  }
412  break;
413 #if HAVE_BIGENDIAN
414  case AV_CODEC_ID_PCM_F64LE:
415  DECODE(64, le64, src, samples, n, 0, 0)
416  break;
417  case AV_CODEC_ID_PCM_S32LE:
418  case AV_CODEC_ID_PCM_F32LE:
419  DECODE(32, le32, src, samples, n, 0, 0)
420  break;
421  case AV_CODEC_ID_PCM_S32LE_PLANAR:
422  DECODE_PLANAR(32, le32, src, samples, n, 0, 0);
423  break;
424  case AV_CODEC_ID_PCM_S16LE:
425  DECODE(16, le16, src, samples, n, 0, 0)
426  break;
427  case AV_CODEC_ID_PCM_S16LE_PLANAR:
428  DECODE_PLANAR(16, le16, src, samples, n, 0, 0);
429  break;
430  case AV_CODEC_ID_PCM_F64BE:
431  case AV_CODEC_ID_PCM_F32BE:
432  case AV_CODEC_ID_PCM_S32BE:
433  case AV_CODEC_ID_PCM_S16BE:
434 #else
435  case AV_CODEC_ID_PCM_F64BE:
436  DECODE(64, be64, src, samples, n, 0, 0)
437  break;
438  case AV_CODEC_ID_PCM_F32BE:
439  case AV_CODEC_ID_PCM_S32BE:
440  DECODE(32, be32, src, samples, n, 0, 0)
441  break;
442  case AV_CODEC_ID_PCM_S16BE:
443  DECODE(16, be16, src, samples, n, 0, 0)
444  break;
445  case AV_CODEC_ID_PCM_S16BE_PLANAR:
446  DECODE_PLANAR(16, be16, src, samples, n, 0, 0);
447  break;
448  case AV_CODEC_ID_PCM_F64LE:
449  case AV_CODEC_ID_PCM_F32LE:
450  case AV_CODEC_ID_PCM_S32LE:
451  case AV_CODEC_ID_PCM_S16LE:
452 #endif /* HAVE_BIGENDIAN */
453  case AV_CODEC_ID_PCM_U8:
454  memcpy(samples, src, n * sample_size);
455  break;
456 #if HAVE_BIGENDIAN
457  case AV_CODEC_ID_PCM_S16BE_PLANAR:
458 #else
459  case AV_CODEC_ID_PCM_S16LE_PLANAR:
460  case AV_CODEC_ID_PCM_S32LE_PLANAR:
461 #endif /* HAVE_BIGENDIAN */
462  n /= avctx->channels;
463  for (c = 0; c < avctx->channels; c++) {
464  samples = frame->extended_data[c];
465  bytestream_get_buffer(&src, samples, n * sample_size);
466  }
467  break;
468  case AV_CODEC_ID_PCM_ZORK:
469  for (; n > 0; n--) {
470  int v = *src++;
471  if (v < 128)
472  v = 128 - v;
473  *samples++ = v;
474  }
475  break;
476  case AV_CODEC_ID_PCM_ALAW:
477  case AV_CODEC_ID_PCM_MULAW:
478  for (; n > 0; n--) {
479  AV_WN16A(samples, s->table[*src++]);
480  samples += 2;
481  }
482  break;
483  case AV_CODEC_ID_PCM_DVD:
484  {
485  const uint8_t *src8;
486  dst_int32_t = (int32_t *)frame->data[0];
487  n /= avctx->channels;
488  switch (avctx->bits_per_coded_sample) {
489  case 20:
490  while (n--) {
491  c = avctx->channels;
492  src8 = src + 4 * c;
493  while (c--) {
494  *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8 & 0xf0) << 8);
495  *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++ & 0x0f) << 12);
496  }
497  src = src8;
498  }
499  break;
500  case 24:
501  while (n--) {
502  c = avctx->channels;
503  src8 = src + 4 * c;
504  while (c--) {
505  *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);
506  *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);
507  }
508  src = src8;
509  }
510  break;
511  }
512  break;
513  }
514  case AV_CODEC_ID_PCM_LXF:
515  {
516  int i;
517  n /= avctx->channels;
518  for (c = 0; c < avctx->channels; c++) {
519  dst_int32_t = (int32_t *)frame->extended_data[c];
520  for (i = 0; i < n; i++) {
521  // extract low 20 bits and expand to 32 bits
522  *dst_int32_t++ = (src[2] << 28) |
523  (src[1] << 20) |
524  (src[0] << 12) |
525  ((src[2] & 0x0F) << 8) |
526  src[1];
527  // extract high 20 bits and expand to 32 bits
528  *dst_int32_t++ = (src[4] << 24) |
529  (src[3] << 16) |
530  ((src[2] & 0xF0) << 8) |
531  (src[4] << 4) |
532  (src[3] >> 4);
533  src += 5;
534  }
535  }
536  break;
537  }
538  default:
539  return -1;
540  }
541 
542  *got_frame_ptr = 1;
543 
544  return buf_size;
545 }
546 
547 #define PCM_ENCODER_0(id_, sample_fmt_, name_, long_name_)
548 #define PCM_ENCODER_1(id_, sample_fmt_, name_, long_name_) \
549 AVCodec ff_ ## name_ ## _encoder = { \
550  .name = #name_, \
551  .type = AVMEDIA_TYPE_AUDIO, \
552  .id = AV_CODEC_ID_ ## id_, \
553  .init = pcm_encode_init, \
554  .encode2 = pcm_encode_frame, \
555  .close = pcm_encode_close, \
556  .capabilities = CODEC_CAP_VARIABLE_FRAME_SIZE, \
557  .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
558  AV_SAMPLE_FMT_NONE }, \
559  .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
560 }
561 
562 #define PCM_ENCODER_2(cf, id, sample_fmt, name, long_name) \
563  PCM_ENCODER_ ## cf(id, sample_fmt, name, long_name)
564 #define PCM_ENCODER_3(cf, id, sample_fmt, name, long_name) \
565  PCM_ENCODER_2(cf, id, sample_fmt, name, long_name)
566 #define PCM_ENCODER(id, sample_fmt, name, long_name) \
567  PCM_ENCODER_3(CONFIG_ ## id ## _ENCODER, id, sample_fmt, name, long_name)
568 
569 #define PCM_DECODER_0(id, sample_fmt, name, long_name)
570 #define PCM_DECODER_1(id_, sample_fmt_, name_, long_name_) \
571 AVCodec ff_ ## name_ ## _decoder = { \
572  .name = #name_, \
573  .type = AVMEDIA_TYPE_AUDIO, \
574  .id = AV_CODEC_ID_ ## id_, \
575  .priv_data_size = sizeof(PCMDecode), \
576  .init = pcm_decode_init, \
577  .decode = pcm_decode_frame, \
578  .capabilities = CODEC_CAP_DR1, \
579  .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
580  AV_SAMPLE_FMT_NONE }, \
581  .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
582 }
583 
584 #define PCM_DECODER_2(cf, id, sample_fmt, name, long_name) \
585  PCM_DECODER_ ## cf(id, sample_fmt, name, long_name)
586 #define PCM_DECODER_3(cf, id, sample_fmt, name, long_name) \
587  PCM_DECODER_2(cf, id, sample_fmt, name, long_name)
588 #define PCM_DECODER(id, sample_fmt, name, long_name) \
589  PCM_DECODER_3(CONFIG_ ## id ## _DECODER, id, sample_fmt, name, long_name)
590 
591 #define PCM_CODEC(id, sample_fmt_, name, long_name_) \
592  PCM_ENCODER(id, sample_fmt_, name, long_name_); \
593  PCM_DECODER(id, sample_fmt_, name, long_name_)
594 
595 /* Note: Do not forget to add new entries to the Makefile as well. */
596 PCM_CODEC (PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law / G.711 A-law");
597 PCM_DECODER(PCM_DVD, AV_SAMPLE_FMT_S32, pcm_dvd, "PCM signed 20|24-bit big-endian");
598 PCM_CODEC (PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian");
599 PCM_CODEC (PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian");
600 PCM_CODEC (PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian");
601 PCM_CODEC (PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian");
602 PCM_DECODER(PCM_LXF, AV_SAMPLE_FMT_S32P,pcm_lxf, "PCM signed 20-bit little-endian planar");
603 PCM_CODEC (PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law / G.711 mu-law");
604 PCM_CODEC (PCM_S8, AV_SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit");
605 PCM_CODEC (PCM_S8_PLANAR, AV_SAMPLE_FMT_U8P, pcm_s8_planar, "PCM signed 8-bit planar");
606 PCM_CODEC (PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian");
607 PCM_CODEC (PCM_S16BE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16be_planar, "PCM signed 16-bit big-endian planar");
608 PCM_CODEC (PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian");
609 PCM_CODEC (PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16le_planar, "PCM signed 16-bit little-endian planar");
610 PCM_CODEC (PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian");
611 PCM_CODEC (PCM_S24DAUD, AV_SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit");
612 PCM_CODEC (PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian");
613 PCM_CODEC (PCM_S24LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s24le_planar, "PCM signed 24-bit little-endian planar");
614 PCM_CODEC (PCM_S32BE, AV_SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian");
615 PCM_CODEC (PCM_S32LE, AV_SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian");
616 PCM_CODEC (PCM_S32LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s32le_planar, "PCM signed 32-bit little-endian planar");
617 PCM_CODEC (PCM_U8, AV_SAMPLE_FMT_U8, pcm_u8, "PCM unsigned 8-bit");
618 PCM_CODEC (PCM_U16BE, AV_SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian");
619 PCM_CODEC (PCM_U16LE, AV_SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian");
620 PCM_CODEC (PCM_U24BE, AV_SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian");
621 PCM_CODEC (PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian");
622 PCM_CODEC (PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian");
623 PCM_CODEC (PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian");
624 PCM_DECODER(PCM_ZORK, AV_SAMPLE_FMT_U8, pcm_zork, "PCM Zork");
625 
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