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.
35359 Commits
32 Branches
935MB
Tree: 22f5149ec4
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '22f5149ec4'
${ noResults }
FFmpeg/libavcodec/pcm.c

544 lines
20KB
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 "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. #define MAX_CHANNELS 64

  35. 

  36. static av_cold int pcm_encode_init(AVCodecContext *avctx)

  37. {

  38.     avctx->frame_size = 0;

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

  40.     case AV_CODEC_ID_PCM_ALAW:

  41.         pcm_alaw_tableinit();

  42.         break;

  43.     case AV_CODEC_ID_PCM_MULAW:

  44.         pcm_ulaw_tableinit();

  45.         break;

  46.     default:

  47.         break;

  48.     }

  49. 

  50.     avctx->bits_per_coded_sample = av_get_bits_per_sample(avctx->codec->id);

  51.     avctx->block_align           = avctx->channels * avctx->bits_per_coded_sample / 8;

  52.     avctx->bit_rate              = avctx->block_align * avctx->sample_rate * 8;

  53.     avctx->coded_frame           = avcodec_alloc_frame();

  54.     if (!avctx->coded_frame)

  55.         return AVERROR(ENOMEM);

  56. 

  57.     return 0;

  58. }

  59. 

  60. static av_cold int pcm_encode_close(AVCodecContext *avctx)

  61. {

  62.     av_freep(&avctx->coded_frame);

  63. 

  64.     return 0;

  65. }

  66. 

  67. /**

  68.  * Write PCM samples macro

  69.  * @param type   Datatype of native machine format

  70.  * @param endian bytestream_put_xxx() suffix

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

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

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

  74.  * @param shift  Bitshift (bits)

  75.  * @param offset Sample value offset

  76.  */

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

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

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

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

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

  82.     }

  83. 

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

  85.                             const AVFrame *frame, int *got_packet_ptr)

  86. {

  87.     int n, sample_size, v, ret;

  88.     const short *samples;

  89.     unsigned char *dst;

  90.     const uint8_t *srcu8;

  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_packet(avpkt, n * sample_size))) {

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

  103.         return ret;

  104.     }

  105.     dst = avpkt->data;

  106. 

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

  108.     case AV_CODEC_ID_PCM_U32LE:

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

  110.         break;

  111.     case AV_CODEC_ID_PCM_U32BE:

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

  113.         break;

  114.     case AV_CODEC_ID_PCM_S24LE:

  115.         ENCODE(int32_t, le24, samples, 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.         srcu8 = frame->data[0];

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

  144.             v      = *srcu8++;

  145.             *dst++ = v - 128;

  146.         }

  147.         break;

  148. #if HAVE_BIGENDIAN

  149.     case AV_CODEC_ID_PCM_F64LE:

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

  151.         break;

  152.     case AV_CODEC_ID_PCM_S32LE:

  153.     case AV_CODEC_ID_PCM_F32LE:

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

  155.         break;

  156.     case AV_CODEC_ID_PCM_S16LE:

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

  158.         break;

  159.     case AV_CODEC_ID_PCM_F64BE:

  160.     case AV_CODEC_ID_PCM_F32BE:

  161.     case AV_CODEC_ID_PCM_S32BE:

  162.     case AV_CODEC_ID_PCM_S16BE:

  163. #else

  164.     case AV_CODEC_ID_PCM_F64BE:

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

  166.         break;

  167.     case AV_CODEC_ID_PCM_F32BE:

  168.     case AV_CODEC_ID_PCM_S32BE:

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

  170.         break;

  171.     case AV_CODEC_ID_PCM_S16BE:

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

  173.         break;

  174.     case AV_CODEC_ID_PCM_F64LE:

  175.     case AV_CODEC_ID_PCM_F32LE:

  176.     case AV_CODEC_ID_PCM_S32LE:

  177.     case AV_CODEC_ID_PCM_S16LE:

  178. #endif /* HAVE_BIGENDIAN */

  179.     case AV_CODEC_ID_PCM_U8:

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

  181.         dst += n * sample_size;

  182.         break;

  183.     case AV_CODEC_ID_PCM_ALAW:

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

  185.             v      = *samples++;

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

  187.         }

  188.         break;

  189.     case AV_CODEC_ID_PCM_MULAW:

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

  191.             v      = *samples++;

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

  193.         }

  194.         break;

  195.     default:

  196.         return -1;

  197.     }

  198. 

  199.     *got_packet_ptr = 1;

  200.     return 0;

  201. }

  202. 

  203. typedef struct PCMDecode {

  204.     AVFrame frame;

  205.     short   table[256];

  206. } PCMDecode;

  207. 

  208. static av_cold int pcm_decode_init(AVCodecContext *avctx)

  209. {

  210.     PCMDecode *s = avctx->priv_data;

  211.     int i;

  212. 

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

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

  215.         return AVERROR(EINVAL);

  216.     }

  217. 

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

  219.     case AV_CODEC_ID_PCM_ALAW:

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

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

  222.         break;

  223.     case AV_CODEC_ID_PCM_MULAW:

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

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

  226.         break;

  227.     default:

  228.         break;

  229.     }

  230. 

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

  232. 

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

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

  235. 

  236.     avcodec_get_frame_defaults(&s->frame);

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

  238. 

  239.     return 0;

  240. }

  241. 

  242. /**

  243.  * Read PCM samples macro

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

  245.  * @param endian bytestream_get_xxx() endian suffix

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

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

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

  249.  * @param shift  Bitshift (bits)

  250.  * @param offset Sample value offset

  251.  */

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

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

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

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

  256.         dst += size / 8;                                                \

  257.     }

  258. 

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

  260.                             int *got_frame_ptr, AVPacket *avpkt)

  261. {

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

  263.     int buf_size       = avpkt->size;

  264.     PCMDecode *s       = avctx->priv_data;

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

  266.     uint8_t *samples;

  267.     int32_t *dst_int32_t;

  268. 

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

  270. 

  271.     /* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */

  272.     samples_per_block = 1;

  273.     if (AV_CODEC_ID_PCM_DVD == avctx->codec_id) {

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

  275.             avctx->bits_per_coded_sample != 24) {

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

  277.             return AVERROR(EINVAL);

  278.         }

  279.         /* 2 samples are interleaved per block in PCM_DVD */

  280.         samples_per_block = 2;

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

  282.     } else if (avctx->codec_id == AV_CODEC_ID_PCM_LXF) {

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

  284.         samples_per_block = 2;

  285.         sample_size       = 5;

  286.     }

  287. 

  288.     if (sample_size == 0) {

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

  290.         return AVERROR(EINVAL);

  291.     }

  292. 

  293.     n = avctx->channels * sample_size;

  294. 

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

  296.         if (buf_size < n) {

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

  298.             return -1;

  299.         } else

  300.             buf_size -= buf_size % n;

  301.     }

  302. 

  303.     n = buf_size / sample_size;

  304. 

  305.     /* get output buffer */

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

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

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

  309.         return ret;

  310.     }

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

  312. 

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

  314.     case AV_CODEC_ID_PCM_U32LE:

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

  316.         break;

  317.     case AV_CODEC_ID_PCM_U32BE:

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

  319.         break;

  320.     case AV_CODEC_ID_PCM_S24LE:

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

  322.         break;

  323.     case AV_CODEC_ID_PCM_S24BE:

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

  325.         break;

  326.     case AV_CODEC_ID_PCM_U24LE:

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

  328.         break;

  329.     case AV_CODEC_ID_PCM_U24BE:

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

  331.         break;

  332.     case AV_CODEC_ID_PCM_S24DAUD:

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

  334.             uint32_t v = bytestream_get_be24(&src);

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

  336.             AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] +

  337.                              (ff_reverse[v        & 0xff] << 8));

  338.             samples += 2;

  339.         }

  340.         break;

  341.     case AV_CODEC_ID_PCM_S16LE_PLANAR:

  342.     {

  343.         const uint8_t *src2[MAX_CHANNELS];

  344.         n /= avctx->channels;

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

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

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

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

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

  350.                 samples += 2;

  351.             }

  352.         break;

  353.     }

  354.     case AV_CODEC_ID_PCM_U16LE:

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

  356.         break;

  357.     case AV_CODEC_ID_PCM_U16BE:

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

  359.         break;

  360.     case AV_CODEC_ID_PCM_S8:

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

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

  363.         break;

  364. #if HAVE_BIGENDIAN

  365.     case AV_CODEC_ID_PCM_F64LE:

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

  367.         break;

  368.     case AV_CODEC_ID_PCM_S32LE:

  369.     case AV_CODEC_ID_PCM_F32LE:

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

  371.         break;

  372.     case AV_CODEC_ID_PCM_S16LE:

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

  374.         break;

  375.     case AV_CODEC_ID_PCM_F64BE:

  376.     case AV_CODEC_ID_PCM_F32BE:

  377.     case AV_CODEC_ID_PCM_S32BE:

  378.     case AV_CODEC_ID_PCM_S16BE:

  379. #else

  380.     case AV_CODEC_ID_PCM_F64BE:

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

  382.         break;

  383.     case AV_CODEC_ID_PCM_F32BE:

  384.     case AV_CODEC_ID_PCM_S32BE:

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

  386.         break;

  387.     case AV_CODEC_ID_PCM_S16BE:

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

  389.         break;

  390.     case AV_CODEC_ID_PCM_F64LE:

  391.     case AV_CODEC_ID_PCM_F32LE:

  392.     case AV_CODEC_ID_PCM_S32LE:

  393.     case AV_CODEC_ID_PCM_S16LE:

  394. #endif /* HAVE_BIGENDIAN */

  395.     case AV_CODEC_ID_PCM_U8:

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

  397.         break;

  398.     case AV_CODEC_ID_PCM_ZORK:

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

  400.             int v = *src++;

  401.             if (v < 128)

  402.                 v = 128 - v;

  403.             *samples++ = v;

  404.         }

  405.         break;

  406.     case AV_CODEC_ID_PCM_ALAW:

  407.     case AV_CODEC_ID_PCM_MULAW:

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

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

  410.             samples += 2;

  411.         }

  412.         break;

  413.     case AV_CODEC_ID_PCM_DVD:

  414.     {

  415.         const uint8_t *src8;

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

  417.         n /= avctx->channels;

  418.         switch (avctx->bits_per_coded_sample) {

  419.         case 20:

  420.             while (n--) {

  421.                 c    = avctx->channels;

  422.                 src8 = src + 4 * c;

  423.                 while (c--) {

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

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

  426.                 }

  427.                 src = src8;

  428.             }

  429.             break;

  430.         case 24:

  431.             while (n--) {

  432.                 c    = avctx->channels;

  433.                 src8 = src + 4 * c;

  434.                 while (c--) {

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

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

  437.                 }

  438.                 src = src8;

  439.             }

  440.             break;

  441.         }

  442.         break;

  443.     }

  444.     case AV_CODEC_ID_PCM_LXF:

  445.     {

  446.         int i;

  447.         n /= avctx->channels;

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

  449.             dst_int32_t = (int32_t *)s->frame.extended_data[c];

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

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

  452.                 *dst_int32_t++ =  (src[2]         << 28) |

  453.                                   (src[1]         << 20) |

  454.                                   (src[0]         << 12) |

  455.                                  ((src[2] & 0x0F) <<  8) |

  456.                                    src[1];

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

  458.                 *dst_int32_t++ =  (src[4]         << 24) |

  459.                                   (src[3]         << 16) |

  460.                                  ((src[2] & 0xF0) <<  8) |

  461.                                   (src[4]         <<  4) |

  462.                                   (src[3]         >>  4);

  463.                 src += 5;

  464.             }

  465.         }

  466.         break;

  467.     }

  468.     default:

  469.         return -1;

  470.     }

  471. 

  472.     *got_frame_ptr   = 1;

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

  474. 

  475.     return buf_size;

  476. }

  477. 

  478. #if CONFIG_ENCODERS

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

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

  481.     .name         = #name_,                                                 \

  482.     .type         = AVMEDIA_TYPE_AUDIO,                                     \

  483.     .id           = id_,                                                    \

  484.     .init         = pcm_encode_init,                                        \

  485.     .encode2      = pcm_encode_frame,                                       \

  486.     .close        = pcm_encode_close,                                       \

  487.     .capabilities = CODEC_CAP_VARIABLE_FRAME_SIZE,                          \

  488.     .sample_fmts  = (const enum AVSampleFormat[]){ sample_fmt_,             \

  489.                                                    AV_SAMPLE_FMT_NONE },    \

  490.     .long_name    = NULL_IF_CONFIG_SMALL(long_name_),                       \

  491. }

  492. #else

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

  494. #endif

  495. 

  496. #if CONFIG_DECODERS

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

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

  499.     .name           = #name_,                                               \

  500.     .type           = AVMEDIA_TYPE_AUDIO,                                   \

  501.     .id             = id_,                                                  \

  502.     .priv_data_size = sizeof(PCMDecode),                                    \

  503.     .init           = pcm_decode_init,                                      \

  504.     .decode         = pcm_decode_frame,                                     \

  505.     .capabilities   = CODEC_CAP_DR1,                                        \

  506.     .sample_fmts    = (const enum AVSampleFormat[]){ sample_fmt_,           \

  507.                                                      AV_SAMPLE_FMT_NONE },  \

  508.     .long_name      = NULL_IF_CONFIG_SMALL(long_name_),                     \

  509. }

  510. #else

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

  512. #endif

  513. 

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

  515.     PCM_ENCODER(id, sample_fmt_, name, long_name_);                     \

  516.     PCM_DECODER(id, sample_fmt_, name, long_name_)

  517. 

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

  519. PCM_CODEC  (AV_CODEC_ID_PCM_ALAW,         AV_SAMPLE_FMT_S16, pcm_alaw,         "PCM A-law");

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

  521. PCM_CODEC  (AV_CODEC_ID_PCM_F32BE,        AV_SAMPLE_FMT_FLT, pcm_f32be,        "PCM 32-bit floating point big-endian");

  522. PCM_CODEC  (AV_CODEC_ID_PCM_F32LE,        AV_SAMPLE_FMT_FLT, pcm_f32le,        "PCM 32-bit floating point little-endian");

  523. PCM_CODEC  (AV_CODEC_ID_PCM_F64BE,        AV_SAMPLE_FMT_DBL, pcm_f64be,        "PCM 64-bit floating point big-endian");

  524. PCM_CODEC  (AV_CODEC_ID_PCM_F64LE,        AV_SAMPLE_FMT_DBL, pcm_f64le,        "PCM 64-bit floating point little-endian");

  525. PCM_DECODER(AV_CODEC_ID_PCM_LXF,          AV_SAMPLE_FMT_S32P, pcm_lxf,          "PCM signed 20-bit little-endian planar");

  526. PCM_CODEC  (AV_CODEC_ID_PCM_MULAW,        AV_SAMPLE_FMT_S16, pcm_mulaw,        "PCM mu-law");

  527. PCM_CODEC  (AV_CODEC_ID_PCM_S8,           AV_SAMPLE_FMT_U8,  pcm_s8,           "PCM signed 8-bit");

  528. PCM_CODEC  (AV_CODEC_ID_PCM_S16BE,        AV_SAMPLE_FMT_S16, pcm_s16be,        "PCM signed 16-bit big-endian");

  529. PCM_CODEC  (AV_CODEC_ID_PCM_S16LE,        AV_SAMPLE_FMT_S16, pcm_s16le,        "PCM signed 16-bit little-endian");

  530. PCM_DECODER(AV_CODEC_ID_PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16, pcm_s16le_planar, "PCM 16-bit little-endian planar");

  531. PCM_CODEC  (AV_CODEC_ID_PCM_S24BE,        AV_SAMPLE_FMT_S32, pcm_s24be,        "PCM signed 24-bit big-endian");

  532. PCM_CODEC  (AV_CODEC_ID_PCM_S24DAUD,      AV_SAMPLE_FMT_S16, pcm_s24daud,      "PCM D-Cinema audio signed 24-bit");

  533. PCM_CODEC  (AV_CODEC_ID_PCM_S24LE,        AV_SAMPLE_FMT_S32, pcm_s24le,        "PCM signed 24-bit little-endian");

  534. PCM_CODEC  (AV_CODEC_ID_PCM_S32BE,        AV_SAMPLE_FMT_S32, pcm_s32be,        "PCM signed 32-bit big-endian");

  535. PCM_CODEC  (AV_CODEC_ID_PCM_S32LE,        AV_SAMPLE_FMT_S32, pcm_s32le,        "PCM signed 32-bit little-endian");

  536. PCM_CODEC  (AV_CODEC_ID_PCM_U8,           AV_SAMPLE_FMT_U8,  pcm_u8,           "PCM unsigned 8-bit");

  537. PCM_CODEC  (AV_CODEC_ID_PCM_U16BE,        AV_SAMPLE_FMT_S16, pcm_u16be,        "PCM unsigned 16-bit big-endian");

  538. PCM_CODEC  (AV_CODEC_ID_PCM_U16LE,        AV_SAMPLE_FMT_S16, pcm_u16le,        "PCM unsigned 16-bit little-endian");

  539. PCM_CODEC  (AV_CODEC_ID_PCM_U24BE,        AV_SAMPLE_FMT_S32, pcm_u24be,        "PCM unsigned 24-bit big-endian");

  540. PCM_CODEC  (AV_CODEC_ID_PCM_U24LE,        AV_SAMPLE_FMT_S32, pcm_u24le,        "PCM unsigned 24-bit little-endian");

  541. PCM_CODEC  (AV_CODEC_ID_PCM_U32BE,        AV_SAMPLE_FMT_S32, pcm_u32be,        "PCM unsigned 32-bit big-endian");

  542. PCM_CODEC  (AV_CODEC_ID_PCM_U32LE,        AV_SAMPLE_FMT_S32, pcm_u32le,        "PCM unsigned 32-bit little-endian");

  543. PCM_DECODER(AV_CODEC_ID_PCM_ZORK,         AV_SAMPLE_FMT_U8,  pcm_zork,         "PCM Zork");