falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
32471 Commits
32 Branches
283MB
Tree: 01cb62aba2
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '01cb62aba2'
${ noResults }
FFmpeg/libavcodec/pcm.c

537 lines
18KB
Raw Blame History 

  1. /*

  2.  * PCM codecs

  3.  * Copyright (c) 2001 Fabrice Bellard

  4.  *

  5.  * This file is part of Libav.

  6.  *

  7.  * Libav 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.  * Libav 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 Libav; 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 "avcodec.h"

  28. #include "libavutil/common.h" /* for av_reverse */

  29. #include "bytestream.h"

  30. #include "internal.h"

  31. #include "pcm_tablegen.h"

  32. 

  33. #define MAX_CHANNELS 64

  34. 

  35. static av_cold int pcm_encode_init(AVCodecContext *avctx)

  36. {

  37.     avctx->frame_size = 0;

  38.     switch(avctx->codec->id) {

  39.     case CODEC_ID_PCM_ALAW:

  40.         pcm_alaw_tableinit();

  41.         break;

  42.     case 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->coded_frame= avcodec_alloc_frame();

  52.     avctx->coded_frame->key_frame= 1;

  53. 

  54.     return 0;

  55. }

  56. 

  57. static av_cold int pcm_encode_close(AVCodecContext *avctx)

  58. {

  59.     av_freep(&avctx->coded_frame);

  60. 

  61.     return 0;

  62. }

  63. 

  64. /**

  65.  * Write PCM samples macro

  66.  * @param type Datatype of native machine format

  67.  * @param endian bytestream_put_xxx() suffix

  68.  * @param src Source pointer (variable name)

  69.  * @param dst Destination pointer (variable name)

  70.  * @param n Total number of samples (variable name)

  71.  * @param shift Bitshift (bits)

  72.  * @param offset Sample value offset

  73.  */

  74. #define ENCODE(type, endian, src, dst, n, shift, offset) \

  75.     samples_##type = (const type*) src; \

  76.     for(;n>0;n--) { \

  77.         register type v = (*samples_##type++ >> shift) + offset; \

  78.         bytestream_put_##endian(&dst, v); \

  79.     }

  80. 

  81. static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,

  82.                             const AVFrame *frame, int *got_packet_ptr)

  83. {

  84.     int n, sample_size, v, ret;

  85.     const short *samples;

  86.     unsigned char *dst;

  87.     const uint8_t *srcu8;

  88.     const int16_t *samples_int16_t;

  89.     const int32_t *samples_int32_t;

  90.     const int64_t *samples_int64_t;

  91.     const uint16_t *samples_uint16_t;

  92.     const uint32_t *samples_uint32_t;

  93. 

  94.     sample_size = av_get_bits_per_sample(avctx->codec->id)/8;

  95.     n           = frame->nb_samples * avctx->channels;

  96.     samples     = (const short *)frame->data[0];

  97. 

  98.     if ((ret = ff_alloc_packet(avpkt, n * sample_size))) {

  99.         av_log(avctx, AV_LOG_ERROR, "Error getting output packet\n");

  100.         return ret;

  101.     }

  102.     dst = avpkt->data;

  103. 

  104.     switch(avctx->codec->id) {

  105.     case CODEC_ID_PCM_U32LE:

  106.         ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000)

  107.         break;

  108.     case CODEC_ID_PCM_U32BE:

  109.         ENCODE(uint32_t, be32, samples, dst, n, 0, 0x80000000)

  110.         break;

  111.     case CODEC_ID_PCM_S24LE:

  112.         ENCODE(int32_t, le24, samples, dst, n, 8, 0)

  113.         break;

  114.     case CODEC_ID_PCM_S24BE:

  115.         ENCODE(int32_t, be24, samples, dst, n, 8, 0)

  116.         break;

  117.     case CODEC_ID_PCM_U24LE:

  118.         ENCODE(uint32_t, le24, samples, dst, n, 8, 0x800000)

  119.         break;

  120.     case CODEC_ID_PCM_U24BE:

  121.         ENCODE(uint32_t, be24, samples, dst, n, 8, 0x800000)

  122.         break;

  123.     case CODEC_ID_PCM_S24DAUD:

  124.         for(;n>0;n--) {

  125.             uint32_t tmp = av_reverse[(*samples >> 8) & 0xff] +

  126.                            (av_reverse[*samples & 0xff] << 8);

  127.             tmp <<= 4; // sync flags would go here

  128.             bytestream_put_be24(&dst, tmp);

  129.             samples++;

  130.         }

  131.         break;

  132.     case CODEC_ID_PCM_U16LE:

  133.         ENCODE(uint16_t, le16, samples, dst, n, 0, 0x8000)

  134.         break;

  135.     case CODEC_ID_PCM_U16BE:

  136.         ENCODE(uint16_t, be16, samples, dst, n, 0, 0x8000)

  137.         break;

  138.     case CODEC_ID_PCM_S8:

  139.         srcu8 = frame->data[0];

  140.         for(;n>0;n--) {

  141.             v = *srcu8++;

  142.             *dst++ = v - 128;

  143.         }

  144.         break;

  145. #if HAVE_BIGENDIAN

  146.     case CODEC_ID_PCM_F64LE:

  147.         ENCODE(int64_t, le64, samples, dst, n, 0, 0)

  148.         break;

  149.     case CODEC_ID_PCM_S32LE:

  150.     case CODEC_ID_PCM_F32LE:

  151.         ENCODE(int32_t, le32, samples, dst, n, 0, 0)

  152.         break;

  153.     case CODEC_ID_PCM_S16LE:

  154.         ENCODE(int16_t, le16, samples, dst, n, 0, 0)

  155.         break;

  156.     case CODEC_ID_PCM_F64BE:

  157.     case CODEC_ID_PCM_F32BE:

  158.     case CODEC_ID_PCM_S32BE:

  159.     case CODEC_ID_PCM_S16BE:

  160. #else

  161.     case CODEC_ID_PCM_F64BE:

  162.         ENCODE(int64_t, be64, samples, dst, n, 0, 0)

  163.         break;

  164.     case CODEC_ID_PCM_F32BE:

  165.     case CODEC_ID_PCM_S32BE:

  166.         ENCODE(int32_t, be32, samples, dst, n, 0, 0)

  167.         break;

  168.     case CODEC_ID_PCM_S16BE:

  169.         ENCODE(int16_t, be16, samples, dst, n, 0, 0)

  170.         break;

  171.     case CODEC_ID_PCM_F64LE:

  172.     case CODEC_ID_PCM_F32LE:

  173.     case CODEC_ID_PCM_S32LE:

  174.     case CODEC_ID_PCM_S16LE:

  175. #endif /* HAVE_BIGENDIAN */

  176.     case CODEC_ID_PCM_U8:

  177.         memcpy(dst, samples, n*sample_size);

  178.         dst += n*sample_size;

  179.         break;

  180.     case CODEC_ID_PCM_ALAW:

  181.         for(;n>0;n--) {

  182.             v = *samples++;

  183.             *dst++ = linear_to_alaw[(v + 32768) >> 2];

  184.         }

  185.         break;

  186.     case CODEC_ID_PCM_MULAW:

  187.         for(;n>0;n--) {

  188.             v = *samples++;

  189.             *dst++ = linear_to_ulaw[(v + 32768) >> 2];

  190.         }

  191.         break;

  192.     default:

  193.         return -1;

  194.     }

  195. 

  196.     *got_packet_ptr = 1;

  197.     return 0;

  198. }

  199. 

  200. typedef struct PCMDecode {

  201.     AVFrame frame;

  202.     short table[256];

  203. } PCMDecode;

  204. 

  205. static av_cold int pcm_decode_init(AVCodecContext * avctx)

  206. {

  207.     PCMDecode *s = avctx->priv_data;

  208.     int i;

  209. 

  210.     if (avctx->channels <= 0 || avctx->channels > MAX_CHANNELS) {

  211.         av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n");

  212.         return AVERROR(EINVAL);

  213.     }

  214. 

  215.     switch(avctx->codec->id) {

  216.     case CODEC_ID_PCM_ALAW:

  217.         for(i=0;i<256;i++)

  218.             s->table[i] = alaw2linear(i);

  219.         break;

  220.     case CODEC_ID_PCM_MULAW:

  221.         for(i=0;i<256;i++)

  222.             s->table[i] = ulaw2linear(i);

  223.         break;

  224.     default:

  225.         break;

  226.     }

  227. 

  228.     avctx->sample_fmt = avctx->codec->sample_fmts[0];

  229. 

  230.     if (avctx->sample_fmt == AV_SAMPLE_FMT_S32)

  231.         avctx->bits_per_raw_sample = av_get_bits_per_sample(avctx->codec->id);

  232. 

  233.     avcodec_get_frame_defaults(&s->frame);

  234.     avctx->coded_frame = &s->frame;

  235. 

  236.     return 0;

  237. }

  238. 

  239. /**

  240.  * Read PCM samples macro

  241.  * @param size Data size of native machine format

  242.  * @param endian bytestream_get_xxx() endian suffix

  243.  * @param src Source pointer (variable name)

  244.  * @param dst Destination pointer (variable name)

  245.  * @param n Total number of samples (variable name)

  246.  * @param shift Bitshift (bits)

  247.  * @param offset Sample value offset

  248.  */

  249. #define DECODE(size, endian, src, dst, n, shift, offset) \

  250.     for(;n>0;n--) { \

  251.         uint##size##_t v = bytestream_get_##endian(&src); \

  252.         AV_WN##size##A(dst, (v - offset) << shift); \

  253.         dst += size / 8; \

  254.     }

  255. 

  256. static int pcm_decode_frame(AVCodecContext *avctx, void *data,

  257.                             int *got_frame_ptr, AVPacket *avpkt)

  258. {

  259.     const uint8_t *src = avpkt->data;

  260.     int buf_size = avpkt->size;

  261.     PCMDecode *s = avctx->priv_data;

  262.     int sample_size, c, n, ret, samples_per_block;

  263.     uint8_t *samples;

  264.     int32_t *dst_int32_t;

  265. 

  266.     sample_size = av_get_bits_per_sample(avctx->codec_id)/8;

  267. 

  268.     /* av_get_bits_per_sample returns 0 for CODEC_ID_PCM_DVD */

  269.     samples_per_block = 1;

  270.     if (CODEC_ID_PCM_DVD == avctx->codec_id) {

  271.         if (avctx->bits_per_coded_sample != 20 &&

  272.             avctx->bits_per_coded_sample != 24) {

  273.             av_log(avctx, AV_LOG_ERROR, "PCM DVD unsupported sample depth\n");

  274.             return AVERROR(EINVAL);

  275.         }

  276.         /* 2 samples are interleaved per block in PCM_DVD */

  277.         samples_per_block = 2;

  278.         sample_size = avctx->bits_per_coded_sample * 2 / 8;

  279.     } else if (avctx->codec_id == CODEC_ID_PCM_LXF) {

  280.         /* we process 40-bit blocks per channel for LXF */

  281.         samples_per_block = 2;

  282.         sample_size = 5;

  283.     }

  284. 

  285.     if (sample_size == 0) {

  286.         av_log(avctx, AV_LOG_ERROR, "Invalid sample_size\n");

  287.         return AVERROR(EINVAL);

  288.     }

  289. 

  290.     n = avctx->channels * sample_size;

  291. 

  292.     if(n && buf_size % n){

  293.         if (buf_size < n) {

  294.             av_log(avctx, AV_LOG_ERROR, "invalid PCM packet\n");

  295.             return -1;

  296.         }else

  297.             buf_size -= buf_size % n;

  298.     }

  299. 

  300.     n = buf_size/sample_size;

  301. 

  302.     /* get output buffer */

  303.     s->frame.nb_samples = n * samples_per_block / avctx->channels;

  304.     if ((ret = avctx->get_buffer(avctx, &s->frame)) < 0) {

  305.         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");

  306.         return ret;

  307.     }

  308.     samples = s->frame.data[0];

  309. 

  310.     switch(avctx->codec->id) {

  311.     case CODEC_ID_PCM_U32LE:

  312.         DECODE(32, le32, src, samples, n, 0, 0x80000000)

  313.         break;

  314.     case CODEC_ID_PCM_U32BE:

  315.         DECODE(32, be32, src, samples, n, 0, 0x80000000)

  316.         break;

  317.     case CODEC_ID_PCM_S24LE:

  318.         DECODE(32, le24, src, samples, n, 8, 0)

  319.         break;

  320.     case CODEC_ID_PCM_S24BE:

  321.         DECODE(32, be24, src, samples, n, 8, 0)

  322.         break;

  323.     case CODEC_ID_PCM_U24LE:

  324.         DECODE(32, le24, src, samples, n, 8, 0x800000)

  325.         break;

  326.     case CODEC_ID_PCM_U24BE:

  327.         DECODE(32, be24, src, samples, n, 8, 0x800000)

  328.         break;

  329.     case CODEC_ID_PCM_S24DAUD:

  330.         for(;n>0;n--) {

  331.           uint32_t v = bytestream_get_be24(&src);

  332.           v >>= 4; // sync flags are here

  333.           AV_WN16A(samples, av_reverse[(v >> 8) & 0xff] +

  334.                            (av_reverse[v & 0xff] << 8));

  335.           samples += 2;

  336.         }

  337.         break;

  338.     case CODEC_ID_PCM_S16LE_PLANAR:

  339.     {

  340.         const uint8_t *src2[MAX_CHANNELS];

  341.         n /= avctx->channels;

  342.         for(c=0;c<avctx->channels;c++)

  343.             src2[c] = &src[c*n*2];

  344.         for(;n>0;n--)

  345.             for(c=0;c<avctx->channels;c++) {

  346.                 AV_WN16A(samples, bytestream_get_le16(&src2[c]));

  347.                 samples += 2;

  348.             }

  349.         break;

  350.     }

  351.     case CODEC_ID_PCM_U16LE:

  352.         DECODE(16, le16, src, samples, n, 0, 0x8000)

  353.         break;

  354.     case CODEC_ID_PCM_U16BE:

  355.         DECODE(16, be16, src, samples, n, 0, 0x8000)

  356.         break;

  357.     case CODEC_ID_PCM_S8:

  358.         for(;n>0;n--) {

  359.             *samples++ = *src++ + 128;

  360.         }

  361.         break;

  362. #if HAVE_BIGENDIAN

  363.     case CODEC_ID_PCM_F64LE:

  364.         DECODE(64, le64, src, samples, n, 0, 0)

  365.         break;

  366.     case CODEC_ID_PCM_S32LE:

  367.     case CODEC_ID_PCM_F32LE:

  368.         DECODE(32, le32, src, samples, n, 0, 0)

  369.         break;

  370.     case CODEC_ID_PCM_S16LE:

  371.         DECODE(16, le16, src, samples, n, 0, 0)

  372.         break;

  373.     case CODEC_ID_PCM_F64BE:

  374.     case CODEC_ID_PCM_F32BE:

  375.     case CODEC_ID_PCM_S32BE:

  376.     case CODEC_ID_PCM_S16BE:

  377. #else

  378.     case CODEC_ID_PCM_F64BE:

  379.         DECODE(64, be64, src, samples, n, 0, 0)

  380.         break;

  381.     case CODEC_ID_PCM_F32BE:

  382.     case CODEC_ID_PCM_S32BE:

  383.         DECODE(32, be32, src, samples, n, 0, 0)

  384.         break;

  385.     case CODEC_ID_PCM_S16BE:

  386.         DECODE(16, be16, src, samples, n, 0, 0)

  387.         break;

  388.     case CODEC_ID_PCM_F64LE:

  389.     case CODEC_ID_PCM_F32LE:

  390.     case CODEC_ID_PCM_S32LE:

  391.     case CODEC_ID_PCM_S16LE:

  392. #endif /* HAVE_BIGENDIAN */

  393.     case CODEC_ID_PCM_U8:

  394.         memcpy(samples, src, n*sample_size);

  395.         break;

  396.     case CODEC_ID_PCM_ZORK:

  397.         for (; n > 0; n--) {

  398.             int v = *src++;

  399.             if (v < 128)

  400.                 v = 128 - v;

  401.             *samples++ = v;

  402.         }

  403.         break;

  404.     case CODEC_ID_PCM_ALAW:

  405.     case CODEC_ID_PCM_MULAW:

  406.         for(;n>0;n--) {

  407.             AV_WN16A(samples, s->table[*src++]);

  408.             samples += 2;

  409.         }

  410.         break;

  411.     case CODEC_ID_PCM_DVD:

  412.     {

  413.         const uint8_t *src8;

  414.         dst_int32_t = (int32_t *)s->frame.data[0];

  415.         n /= avctx->channels;

  416.         switch (avctx->bits_per_coded_sample) {

  417.         case 20:

  418.             while (n--) {

  419.                 c = avctx->channels;

  420.                 src8 = src + 4*c;

  421.                 while (c--) {

  422.                     *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8   &0xf0) << 8);

  423.                     *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++ &0x0f) << 12);

  424.                 }

  425.                 src = src8;

  426.             }

  427.             break;

  428.         case 24:

  429.             while (n--) {

  430.                 c = avctx->channels;

  431.                 src8 = src + 4*c;

  432.                 while (c--) {

  433.                     *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);

  434.                     *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);

  435.                 }

  436.                 src = src8;

  437.             }

  438.             break;

  439.         }

  440.         break;

  441.     }

  442.     case CODEC_ID_PCM_LXF:

  443.     {

  444.         int i;

  445.         const uint8_t *src8;

  446.         dst_int32_t = (int32_t *)s->frame.data[0];

  447.         n /= avctx->channels;

  448.         //unpack and de-planerize

  449.         for (i = 0; i < n; i++) {

  450.             for (c = 0, src8 = src + i*5; c < avctx->channels; c++, src8 += n*5) {

  451.                 //extract low 20 bits and expand to 32 bits

  452.                 *dst_int32_t++ = (src8[2] << 28) | (src8[1] << 20) | (src8[0] << 12) |

  453.                                  ((src8[2] & 0xF) << 8) | src8[1];

  454.             }

  455. 

  456.             for (c = 0, src8 = src + i*5; c < avctx->channels; c++, src8 += n*5) {

  457.                 //extract high 20 bits and expand to 32 bits

  458.                 *dst_int32_t++ = (src8[4] << 24) | (src8[3] << 16) |

  459.                                  ((src8[2] & 0xF0) << 8) | (src8[4] << 4) | (src8[3] >> 4);

  460.             }

  461.         }

  462.         break;

  463.     }

  464.     default:

  465.         return -1;

  466.     }

  467. 

  468.     *got_frame_ptr   = 1;

  469.     *(AVFrame *)data = s->frame;

  470. 

  471.     return buf_size;

  472. }

  473. 

  474. #if CONFIG_ENCODERS

  475. #define PCM_ENCODER(id_,sample_fmt_,name_,long_name_) \

  476. AVCodec ff_ ## name_ ## _encoder = {            \

  477.     .name        = #name_,                      \

  478.     .type        = AVMEDIA_TYPE_AUDIO,          \

  479.     .id          = id_,                         \

  480.     .init        = pcm_encode_init,             \

  481.     .encode2     = pcm_encode_frame,            \

  482.     .close       = pcm_encode_close,            \

  483.     .capabilities = CODEC_CAP_VARIABLE_FRAME_SIZE, \

  484.     .sample_fmts = (const enum AVSampleFormat[]){sample_fmt_,AV_SAMPLE_FMT_NONE}, \

  485.     .long_name = NULL_IF_CONFIG_SMALL(long_name_), \

  486. }

  487. #else

  488. #define PCM_ENCODER(id,sample_fmt_,name,long_name_)

  489. #endif

  490. 

  491. #if CONFIG_DECODERS

  492. #define PCM_DECODER(id_,sample_fmt_,name_,long_name_)         \

  493. AVCodec ff_ ## name_ ## _decoder = {            \

  494.     .name           = #name_,                   \

  495.     .type           = AVMEDIA_TYPE_AUDIO,       \

  496.     .id             = id_,                      \

  497.     .priv_data_size = sizeof(PCMDecode),        \

  498.     .init           = pcm_decode_init,          \

  499.     .decode         = pcm_decode_frame,         \

  500.     .capabilities   = CODEC_CAP_DR1,            \

  501.     .sample_fmts = (const enum AVSampleFormat[]){sample_fmt_,AV_SAMPLE_FMT_NONE}, \

  502.     .long_name = NULL_IF_CONFIG_SMALL(long_name_), \

  503. }

  504. #else

  505. #define PCM_DECODER(id,sample_fmt_,name,long_name_)

  506. #endif

  507. 

  508. #define PCM_CODEC(id, sample_fmt_, name, long_name_)         \

  509.     PCM_ENCODER(id,sample_fmt_,name,long_name_); PCM_DECODER(id,sample_fmt_,name,long_name_)

  510. 

  511. /* Note: Do not forget to add new entries to the Makefile as well. */

  512. PCM_CODEC  (CODEC_ID_PCM_ALAW,  AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law");

  513. PCM_DECODER(CODEC_ID_PCM_DVD,   AV_SAMPLE_FMT_S32, pcm_dvd, "PCM signed 20|24-bit big-endian");

  514. PCM_CODEC  (CODEC_ID_PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian");

  515. PCM_CODEC  (CODEC_ID_PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian");

  516. PCM_CODEC  (CODEC_ID_PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian");

  517. PCM_CODEC  (CODEC_ID_PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian");

  518. PCM_DECODER(CODEC_ID_PCM_LXF,   AV_SAMPLE_FMT_S32, pcm_lxf, "PCM signed 20-bit little-endian planar");

  519. PCM_CODEC  (CODEC_ID_PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law");

  520. PCM_CODEC  (CODEC_ID_PCM_S8,    AV_SAMPLE_FMT_U8,  pcm_s8, "PCM signed 8-bit");

  521. PCM_CODEC  (CODEC_ID_PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian");

  522. PCM_CODEC  (CODEC_ID_PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian");

  523. PCM_DECODER(CODEC_ID_PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16, pcm_s16le_planar, "PCM 16-bit little-endian planar");

  524. PCM_CODEC  (CODEC_ID_PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian");

  525. PCM_CODEC  (CODEC_ID_PCM_S24DAUD, AV_SAMPLE_FMT_S16,  pcm_s24daud, "PCM D-Cinema audio signed 24-bit");

  526. PCM_CODEC  (CODEC_ID_PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian");

  527. PCM_CODEC  (CODEC_ID_PCM_S32BE, AV_SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian");

  528. PCM_CODEC  (CODEC_ID_PCM_S32LE, AV_SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian");

  529. PCM_CODEC  (CODEC_ID_PCM_U8,    AV_SAMPLE_FMT_U8,  pcm_u8, "PCM unsigned 8-bit");

  530. PCM_CODEC  (CODEC_ID_PCM_U16BE, AV_SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian");

  531. PCM_CODEC  (CODEC_ID_PCM_U16LE, AV_SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian");

  532. PCM_CODEC  (CODEC_ID_PCM_U24BE, AV_SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian");

  533. PCM_CODEC  (CODEC_ID_PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian");

  534. PCM_CODEC  (CODEC_ID_PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian");

  535. PCM_CODEC  (CODEC_ID_PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian");

  536. PCM_DECODER(CODEC_ID_PCM_ZORK,  AV_SAMPLE_FMT_U8,  pcm_zork,  "PCM Zork");