/*
  * PCM codecs

  * Copyright (c) 2001 Fabrice Bellard

  *

  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

  * version 2.1 of the License, or (at your option) any later version.

  *

  * FFmpeg is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.

  *

  * You should have received a copy of the GNU Lesser General Public

  * License along with FFmpeg; if not, write to the Free Software

  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  */

 /**

  * @file

  * PCM codecs
  */

 #include "libavutil/attributes.h"

 #include "avcodec.h"

 #include "bytestream.h"

 #include "internal.h"

 #include "mathops.h"

 #include "pcm_tablegen.h"

 static av_cold int pcm_encode_init(AVCodecContext *avctx)

 {

     avctx->frame_size = 0;

     switch (avctx->codec->id) {

     case AV_CODEC_ID_PCM_ALAW:

         pcm_alaw_tableinit();

         break;

     case AV_CODEC_ID_PCM_MULAW:

         pcm_ulaw_tableinit();

         break;
     default:
         break;
     }

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

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

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

     avctx->coded_frame           = avcodec_alloc_frame();

     if (!avctx->coded_frame)
         return AVERROR(ENOMEM);

     return 0;
 }
 

 static av_cold int pcm_encode_close(AVCodecContext *avctx)

 {

     av_freep(&avctx->coded_frame);
 

     return 0;
 }
 

 /**

  * Write PCM samples macro

  * @param type   Datatype of native machine format

  * @param endian bytestream_put_xxx() suffix

  * @param src    Source pointer (variable name)
  * @param dst    Destination pointer (variable name)
  * @param n      Total number of samples (variable name)
  * @param shift  Bitshift (bits)

  * @param offset Sample value offset
  */

 #define ENCODE(type, endian, src, dst, n, shift, offset)                \
     samples_ ## type = (const type *) src;                              \
     for (; n > 0; n--) {                                                \
         register type v = (*samples_ ## type++ >> shift) + offset;      \
         bytestream_put_ ## endian(&dst, v);                             \

     }

 #define ENCODE_PLANAR(type, endian, dst, n, shift, offset)              \
     n /= avctx->channels;                                               \
     for (c = 0; c < avctx->channels; c++) {                             \
         int i;                                                          \
         samples_ ## type = (const type *) frame->extended_data[c];      \
         for (i = n; i > 0; i--) {                                       \
             register type v = (*samples_ ## type++ >> shift) + offset;  \
             bytestream_put_ ## endian(&dst, v);                         \
         }                                                               \
     }
 

 static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
                             const AVFrame *frame, int *got_packet_ptr)

 {

     int n, c, sample_size, v, ret;

     const short *samples;

     unsigned char *dst;

     const uint8_t *samples_uint8_t;

     const int16_t *samples_int16_t;
     const int32_t *samples_int32_t;
     const int64_t *samples_int64_t;
     const uint16_t *samples_uint16_t;
     const uint32_t *samples_uint32_t;

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

     n           = frame->nb_samples * avctx->channels;
     samples     = (const short *)frame->data[0];
 

     if ((ret = ff_alloc_packet2(avctx, avpkt, n * sample_size)) < 0)

         return ret;
     dst = avpkt->data;

     switch (avctx->codec->id) {

     case AV_CODEC_ID_PCM_U32LE:

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

         break;

     case AV_CODEC_ID_PCM_U32BE:

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

         break;

     case AV_CODEC_ID_PCM_S24LE:

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

         break;

     case AV_CODEC_ID_PCM_S24LE_PLANAR:
         ENCODE_PLANAR(int32_t, le24, dst, n, 8, 0)
         break;

     case AV_CODEC_ID_PCM_S24BE:

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

         break;

     case AV_CODEC_ID_PCM_U24LE:

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

         break;

     case AV_CODEC_ID_PCM_U24BE:

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

         break;

     case AV_CODEC_ID_PCM_S24DAUD:

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

             uint32_t tmp = ff_reverse[(*samples >> 8) & 0xff] +
                            (ff_reverse[*samples & 0xff] << 8);

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

             bytestream_put_be24(&dst, tmp);

             samples++;
         }
         break;

     case AV_CODEC_ID_PCM_U16LE:

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

         break;

     case AV_CODEC_ID_PCM_U16BE:

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

         break;

     case AV_CODEC_ID_PCM_S8:

         ENCODE(uint8_t, byte, samples, dst, n, 0, -128)

         break;

     case AV_CODEC_ID_PCM_S8_PLANAR:
         ENCODE_PLANAR(uint8_t, byte, dst, n, 0, -128)
         break;

 #if HAVE_BIGENDIAN

     case AV_CODEC_ID_PCM_F64LE:

         ENCODE(int64_t, le64, samples, dst, n, 0, 0)
         break;

     case AV_CODEC_ID_PCM_S32LE:
     case AV_CODEC_ID_PCM_F32LE:

         ENCODE(int32_t, le32, samples, dst, n, 0, 0)
         break;

     case AV_CODEC_ID_PCM_S32LE_PLANAR:
         ENCODE_PLANAR(int32_t, le32, dst, n, 0, 0)
         break;

     case AV_CODEC_ID_PCM_S16LE:

         ENCODE(int16_t, le16, samples, dst, n, 0, 0)
         break;

     case AV_CODEC_ID_PCM_S16LE_PLANAR:
         ENCODE_PLANAR(int16_t, le16, dst, n, 0, 0)
         break;

     case AV_CODEC_ID_PCM_F64BE:
     case AV_CODEC_ID_PCM_F32BE:
     case AV_CODEC_ID_PCM_S32BE:
     case AV_CODEC_ID_PCM_S16BE:

 #else

     case AV_CODEC_ID_PCM_F64BE:

         ENCODE(int64_t, be64, samples, dst, n, 0, 0)
         break;

     case AV_CODEC_ID_PCM_F32BE:
     case AV_CODEC_ID_PCM_S32BE:

         ENCODE(int32_t, be32, samples, dst, n, 0, 0)
         break;

     case AV_CODEC_ID_PCM_S16BE:

         ENCODE(int16_t, be16, samples, dst, n, 0, 0)
         break;

     case AV_CODEC_ID_PCM_S16BE_PLANAR:
         ENCODE_PLANAR(int16_t, be16, dst, n, 0, 0)
         break;

     case AV_CODEC_ID_PCM_F64LE:
     case AV_CODEC_ID_PCM_F32LE:
     case AV_CODEC_ID_PCM_S32LE:
     case AV_CODEC_ID_PCM_S16LE:

 #endif /* HAVE_BIGENDIAN */

     case AV_CODEC_ID_PCM_U8:

         memcpy(dst, samples, n * sample_size);

         break;

 #if HAVE_BIGENDIAN
     case AV_CODEC_ID_PCM_S16BE_PLANAR:
 #else
     case AV_CODEC_ID_PCM_S16LE_PLANAR:
     case AV_CODEC_ID_PCM_S32LE_PLANAR:
 #endif /* HAVE_BIGENDIAN */
         n /= avctx->channels;
         for (c = 0; c < avctx->channels; c++) {
             const uint8_t *src = frame->extended_data[c];
             bytestream_put_buffer(&dst, src, n * sample_size);
         }
         break;

     case AV_CODEC_ID_PCM_ALAW:

         for (; n > 0; n--) {
             v      = *samples++;

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

         }
         break;

     case AV_CODEC_ID_PCM_MULAW:

         for (; n > 0; n--) {
             v      = *samples++;

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

         }
         break;
     default:
         return -1;
     }

     *got_packet_ptr = 1;
     return 0;

 }
 
 typedef struct PCMDecode {

     short   table[256];

 } PCMDecode;
 

 static av_cold int pcm_decode_init(AVCodecContext *avctx)

 {
     PCMDecode *s = avctx->priv_data;
     int i;
 

     if (avctx->channels <= 0) {

         av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n");
         return AVERROR(EINVAL);
     }
 

     switch (avctx->codec_id) {

     case AV_CODEC_ID_PCM_ALAW:

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

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

     case AV_CODEC_ID_PCM_MULAW:

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

             s->table[i] = ulaw2linear(i);
         break;
     default:
         break;
     }

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

     if (avctx->sample_fmt == AV_SAMPLE_FMT_S32)

         avctx->bits_per_raw_sample = av_get_bits_per_sample(avctx->codec_id);

     return 0;
 }
 

 /**

  * Read PCM samples macro

  * @param size   Data size of native machine format

  * @param endian bytestream_get_xxx() endian suffix

  * @param src    Source pointer (variable name)
  * @param dst    Destination pointer (variable name)
  * @param n      Total number of samples (variable name)
  * @param shift  Bitshift (bits)

  * @param offset Sample value offset
  */

 #define DECODE(size, endian, src, dst, n, shift, offset)                \
     for (; n > 0; n--) {                                                \
         uint ## size ## _t v = bytestream_get_ ## endian(&src);         \
         AV_WN ## size ## A(dst, (v - offset) << shift);                 \
         dst += size / 8;                                                \

     }

 #define DECODE_PLANAR(size, endian, src, dst, n, shift, offset)         \

     n /= avctx->channels;                                               \
     for (c = 0; c < avctx->channels; c++) {                             \

         int i;                                                          \

         dst = frame->extended_data[c];                                \

         for (i = n; i > 0; i--) {                                       \
             uint ## size ## _t v = bytestream_get_ ## endian(&src);     \
             AV_WN ## size ## A(dst, (v - offset) << shift);             \
             dst += size / 8;                                            \
         }                                                               \

     }

 static int pcm_decode_frame(AVCodecContext *avctx, void *data,
                             int *got_frame_ptr, AVPacket *avpkt)

 {

     const uint8_t *src = avpkt->data;

     int buf_size       = avpkt->size;
     PCMDecode *s       = avctx->priv_data;

     AVFrame *frame     = data;

     int sample_size, c, n, ret, samples_per_block;

     uint8_t *samples;

     int32_t *dst_int32_t;

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

     /* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */

     samples_per_block = 1;

     if (AV_CODEC_ID_PCM_DVD == avctx->codec_id) {

         if (avctx->bits_per_coded_sample != 20 &&
             avctx->bits_per_coded_sample != 24) {

             av_log(avctx, AV_LOG_ERROR,
                    "PCM DVD unsupported sample depth %i\n",
                    avctx->bits_per_coded_sample);

             return AVERROR(EINVAL);
         }

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

         samples_per_block = 2;

         sample_size       = avctx->bits_per_coded_sample * 2 / 8;

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

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

         samples_per_block = 2;

         sample_size       = 5;

     }

     if (sample_size == 0) {
         av_log(avctx, AV_LOG_ERROR, "Invalid sample_size\n");
         return AVERROR(EINVAL);
     }
 

     if (avctx->channels == 0) {
         av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
         return AVERROR(EINVAL);
     }
 

     if (avctx->codec_id != avctx->codec->id) {
         av_log(avctx, AV_LOG_ERROR, "codec ids mismatch\n");
         return AVERROR(EINVAL);
     }
 

     n = avctx->channels * sample_size;

     if (n && buf_size % n) {

         if (buf_size < n) {

             av_log(avctx, AV_LOG_ERROR,
                    "Invalid PCM packet, data has size %d but at least a size of %d was expected\n",
                    buf_size, n);
             return AVERROR_INVALIDDATA;

         } else

             buf_size -= buf_size % n;

     }
 

     n = buf_size / sample_size;

     /* get output buffer */

     frame->nb_samples = n * samples_per_block / avctx->channels;
     if ((ret = ff_get_buffer(avctx, frame)) < 0) {

         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return ret;

     }

     samples = frame->data[0];

     switch (avctx->codec_id) {

     case AV_CODEC_ID_PCM_U32LE:

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

         break;

     case AV_CODEC_ID_PCM_U32BE:

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

         break;

     case AV_CODEC_ID_PCM_S24LE:

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

         break;

     case AV_CODEC_ID_PCM_S24LE_PLANAR:
         DECODE_PLANAR(32, le24, src, samples, n, 8, 0);
         break;

     case AV_CODEC_ID_PCM_S24BE:

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

         break;

     case AV_CODEC_ID_PCM_U24LE:

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

         break;

     case AV_CODEC_ID_PCM_U24BE:

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

         break;

     case AV_CODEC_ID_PCM_S24DAUD:

         for (; n > 0; n--) {
             uint32_t v = bytestream_get_be24(&src);
             v >>= 4; // sync flags are here

             AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] +
                              (ff_reverse[v        & 0xff] << 8));

             samples += 2;

         }
         break;

     case AV_CODEC_ID_PCM_U16LE:

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

         break;

     case AV_CODEC_ID_PCM_U16BE:

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

         break;

     case AV_CODEC_ID_PCM_S8:

         for (; n > 0; n--)

             *samples++ = *src++ + 128;

         break;

     case AV_CODEC_ID_PCM_S8_PLANAR:
         n /= avctx->channels;
         for (c = 0; c < avctx->channels; c++) {
             int i;

             samples = frame->extended_data[c];

             for (i = n; i > 0; i--)
                 *samples++ = *src++ + 128;
         }
         break;

 #if HAVE_BIGENDIAN

     case AV_CODEC_ID_PCM_F64LE:

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

         break;

     case AV_CODEC_ID_PCM_S32LE:
     case AV_CODEC_ID_PCM_F32LE:

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

         break;

     case AV_CODEC_ID_PCM_S32LE_PLANAR:
         DECODE_PLANAR(32, le32, src, samples, n, 0, 0);
         break;

     case AV_CODEC_ID_PCM_S16LE:

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

         break;

     case AV_CODEC_ID_PCM_S16LE_PLANAR:
         DECODE_PLANAR(16, le16, src, samples, n, 0, 0);
         break;

     case AV_CODEC_ID_PCM_F64BE:
     case AV_CODEC_ID_PCM_F32BE:
     case AV_CODEC_ID_PCM_S32BE:
     case AV_CODEC_ID_PCM_S16BE:

 #else

     case AV_CODEC_ID_PCM_F64BE:

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

         break;

     case AV_CODEC_ID_PCM_F32BE:
     case AV_CODEC_ID_PCM_S32BE:

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

         break;

     case AV_CODEC_ID_PCM_S16BE:

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

         break;

     case AV_CODEC_ID_PCM_S16BE_PLANAR:
         DECODE_PLANAR(16, be16, src, samples, n, 0, 0);
         break;

     case AV_CODEC_ID_PCM_F64LE:
     case AV_CODEC_ID_PCM_F32LE:
     case AV_CODEC_ID_PCM_S32LE:
     case AV_CODEC_ID_PCM_S16LE:

 #endif /* HAVE_BIGENDIAN */

     case AV_CODEC_ID_PCM_U8:

         memcpy(samples, src, n * sample_size);

         break;

 #if HAVE_BIGENDIAN
     case AV_CODEC_ID_PCM_S16BE_PLANAR:
 #else
     case AV_CODEC_ID_PCM_S16LE_PLANAR:
     case AV_CODEC_ID_PCM_S32LE_PLANAR:
 #endif /* HAVE_BIGENDIAN */
         n /= avctx->channels;
         for (c = 0; c < avctx->channels; c++) {

             samples = frame->extended_data[c];

             bytestream_get_buffer(&src, samples, n * sample_size);
         }
         break;

     case AV_CODEC_ID_PCM_ZORK:

         for (; n > 0; n--) {
             int v = *src++;
             if (v < 128)
                 v = 128 - v;
             *samples++ = v;

         }
         break;

     case AV_CODEC_ID_PCM_ALAW:
     case AV_CODEC_ID_PCM_MULAW:

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

             AV_WN16A(samples, s->table[*src++]);
             samples += 2;

         }
         break;

     case AV_CODEC_ID_PCM_DVD:

     {
         const uint8_t *src8;

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

         n /= avctx->channels;

         switch (avctx->bits_per_coded_sample) {

         case 20:

             while (n--) {

                 c    = avctx->channels;
                 src8 = src + 4 * c;

                 while (c--) {

                     *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8   & 0xf0) <<  8);
                     *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++ & 0x0f) << 12);

                 }
                 src = src8;

             }

             break;
         case 24:
             while (n--) {

                 c    = avctx->channels;
                 src8 = src + 4 * c;

                 while (c--) {
                     *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);
                     *dst_int32_t++ = (bytestream_get_be16(&src) << 16) + ((*src8++) << 8);
                 }
                 src = src8;
             }
             break;

         }
         break;

     }

     case AV_CODEC_ID_PCM_LXF:

     {
         int i;

         n /= avctx->channels;

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

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

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

                 // extract low 20 bits and expand to 32 bits

                 *dst_int32_t++ =  (src[2]         << 28) |
                                   (src[1]         << 20) |
                                   (src[0]         << 12) |
                                  ((src[2] & 0x0F) <<  8) |
                                    src[1];

                 // extract high 20 bits and expand to 32 bits

                 *dst_int32_t++ =  (src[4]         << 24) |
                                   (src[3]         << 16) |
                                  ((src[2] & 0xF0) <<  8) |
                                   (src[4]         <<  4) |
                                   (src[3]         >>  4);

                 src += 5;

             }
         }
         break;

     }

     default:
         return -1;
     }

     *got_frame_ptr = 1;

     return buf_size;

 }
 

 #define PCM_ENCODER_0(id_, sample_fmt_, name_, long_name_)
 #define PCM_ENCODER_1(id_, sample_fmt_, name_, long_name_)                  \

 AVCodec ff_ ## name_ ## _encoder = {                                        \
     .name         = #name_,                                                 \
     .type         = AVMEDIA_TYPE_AUDIO,                                     \

     .id           = AV_CODEC_ID_ ## id_,                                    \

     .init         = pcm_encode_init,                                        \
     .encode2      = pcm_encode_frame,                                       \
     .close        = pcm_encode_close,                                       \
     .capabilities = CODEC_CAP_VARIABLE_FRAME_SIZE,                          \
     .sample_fmts  = (const enum AVSampleFormat[]){ sample_fmt_,             \
                                                    AV_SAMPLE_FMT_NONE },    \
     .long_name    = NULL_IF_CONFIG_SMALL(long_name_),                       \

 }

 #define PCM_ENCODER_2(cf, id, sample_fmt, name, long_name)                  \
     PCM_ENCODER_ ## cf(id, sample_fmt, name, long_name)
 #define PCM_ENCODER_3(cf, id, sample_fmt, name, long_name)                  \
     PCM_ENCODER_2(cf, id, sample_fmt, name, long_name)
 #define PCM_ENCODER(id, sample_fmt, name, long_name)                        \
     PCM_ENCODER_3(CONFIG_ ## id ## _ENCODER, id, sample_fmt, name, long_name)
 
 #define PCM_DECODER_0(id, sample_fmt, name, long_name)
 #define PCM_DECODER_1(id_, sample_fmt_, name_, long_name_)                  \

 AVCodec ff_ ## name_ ## _decoder = {                                        \
     .name           = #name_,                                               \
     .type           = AVMEDIA_TYPE_AUDIO,                                   \

     .id             = AV_CODEC_ID_ ## id_,                                  \

     .priv_data_size = sizeof(PCMDecode),                                    \
     .init           = pcm_decode_init,                                      \
     .decode         = pcm_decode_frame,                                     \
     .capabilities   = CODEC_CAP_DR1,                                        \
     .sample_fmts    = (const enum AVSampleFormat[]){ sample_fmt_,           \
                                                      AV_SAMPLE_FMT_NONE },  \
     .long_name      = NULL_IF_CONFIG_SMALL(long_name_),                     \

 }

 
 #define PCM_DECODER_2(cf, id, sample_fmt, name, long_name)                  \
     PCM_DECODER_ ## cf(id, sample_fmt, name, long_name)
 #define PCM_DECODER_3(cf, id, sample_fmt, name, long_name)                  \
     PCM_DECODER_2(cf, id, sample_fmt, name, long_name)
 #define PCM_DECODER(id, sample_fmt, name, long_name)                        \
     PCM_DECODER_3(CONFIG_ ## id ## _DECODER, id, sample_fmt, name, long_name)

 #define PCM_CODEC(id, sample_fmt_, name, long_name_)                    \
     PCM_ENCODER(id, sample_fmt_, name, long_name_);                     \
     PCM_DECODER(id, sample_fmt_, name, long_name_)

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

 PCM_CODEC  (PCM_ALAW,         AV_SAMPLE_FMT_S16, pcm_alaw,         "PCM A-law / G.711 A-law");

 PCM_DECODER(PCM_DVD,          AV_SAMPLE_FMT_S32, pcm_dvd,          "PCM signed 20|24-bit big-endian");
 PCM_CODEC  (PCM_F32BE,        AV_SAMPLE_FMT_FLT, pcm_f32be,        "PCM 32-bit floating point big-endian");
 PCM_CODEC  (PCM_F32LE,        AV_SAMPLE_FMT_FLT, pcm_f32le,        "PCM 32-bit floating point little-endian");
 PCM_CODEC  (PCM_F64BE,        AV_SAMPLE_FMT_DBL, pcm_f64be,        "PCM 64-bit floating point big-endian");
 PCM_CODEC  (PCM_F64LE,        AV_SAMPLE_FMT_DBL, pcm_f64le,        "PCM 64-bit floating point little-endian");

 PCM_DECODER(PCM_LXF,          AV_SAMPLE_FMT_S32P,pcm_lxf,          "PCM signed 20-bit little-endian planar");
 PCM_CODEC  (PCM_MULAW,        AV_SAMPLE_FMT_S16, pcm_mulaw,        "PCM mu-law / G.711 mu-law");

 PCM_CODEC  (PCM_S8,           AV_SAMPLE_FMT_U8,  pcm_s8,           "PCM signed 8-bit");

 PCM_CODEC  (PCM_S8_PLANAR,    AV_SAMPLE_FMT_U8P, pcm_s8_planar,    "PCM signed 8-bit planar");

 PCM_CODEC  (PCM_S16BE,        AV_SAMPLE_FMT_S16, pcm_s16be,        "PCM signed 16-bit big-endian");

 PCM_CODEC  (PCM_S16BE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16be_planar, "PCM signed 16-bit big-endian planar");

 PCM_CODEC  (PCM_S16LE,        AV_SAMPLE_FMT_S16, pcm_s16le,        "PCM signed 16-bit little-endian");

 PCM_CODEC  (PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16le_planar, "PCM signed 16-bit little-endian planar");

 PCM_CODEC  (PCM_S24BE,        AV_SAMPLE_FMT_S32, pcm_s24be,        "PCM signed 24-bit big-endian");
 PCM_CODEC  (PCM_S24DAUD,      AV_SAMPLE_FMT_S16, pcm_s24daud,      "PCM D-Cinema audio signed 24-bit");
 PCM_CODEC  (PCM_S24LE,        AV_SAMPLE_FMT_S32, pcm_s24le,        "PCM signed 24-bit little-endian");

 PCM_CODEC  (PCM_S24LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s24le_planar, "PCM signed 24-bit little-endian planar");

 PCM_CODEC  (PCM_S32BE,        AV_SAMPLE_FMT_S32, pcm_s32be,        "PCM signed 32-bit big-endian");
 PCM_CODEC  (PCM_S32LE,        AV_SAMPLE_FMT_S32, pcm_s32le,        "PCM signed 32-bit little-endian");

 PCM_CODEC  (PCM_S32LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s32le_planar, "PCM signed 32-bit little-endian planar");

 PCM_CODEC  (PCM_U8,           AV_SAMPLE_FMT_U8,  pcm_u8,           "PCM unsigned 8-bit");
 PCM_CODEC  (PCM_U16BE,        AV_SAMPLE_FMT_S16, pcm_u16be,        "PCM unsigned 16-bit big-endian");
 PCM_CODEC  (PCM_U16LE,        AV_SAMPLE_FMT_S16, pcm_u16le,        "PCM unsigned 16-bit little-endian");
 PCM_CODEC  (PCM_U24BE,        AV_SAMPLE_FMT_S32, pcm_u24be,        "PCM unsigned 24-bit big-endian");
 PCM_CODEC  (PCM_U24LE,        AV_SAMPLE_FMT_S32, pcm_u24le,        "PCM unsigned 24-bit little-endian");
 PCM_CODEC  (PCM_U32BE,        AV_SAMPLE_FMT_S32, pcm_u32be,        "PCM unsigned 32-bit big-endian");
 PCM_CODEC  (PCM_U32LE,        AV_SAMPLE_FMT_S32, pcm_u32le,        "PCM unsigned 32-bit little-endian");
 PCM_DECODER(PCM_ZORK,         AV_SAMPLE_FMT_U8,  pcm_zork,         "PCM Zork");