static int pcm_decode_frame(AVCodecContext *avctx,

                            void *data, int *data_size,

                            AVPacket *avpkt)

{

    const uint8_t *buf = avpkt->data;

    int buf_size = avpkt->size;

    PCMDecode *s = avctx->priv_data;

    int sample_size, c, n, i;

    uint8_t *samples;

    const uint8_t *src, *src8, *src2[MAX_CHANNELS];

    int32_t *dst_int32_t;



    samples = data;

    src = buf;



    if (avctx->sample_fmt!=avctx->codec->sample_fmts[0]) {

        av_log(avctx, AV_LOG_ERROR, "invalid sample_fmt\n");

        return -1;

    }



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

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

        return -1;

    }



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



    /* av_get_bits_per_sample returns 0 for CODEC_ID_PCM_DVD */

    if (CODEC_ID_PCM_DVD == avctx->codec_id)

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

        sample_size = avctx->bits_per_coded_sample * 2 / 8;

    else if (avctx->codec_id == CODEC_ID_PCM_LXF)

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

        sample_size = 5;



    if (sample_size == 0) {

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

            return -1;

        }else

            buf_size -= buf_size % n;

    }



    buf_size= FFMIN(buf_size, *data_size/2);



    n = buf_size/sample_size;



    switch(avctx->codec->id) {

    case CODEC_ID_PCM_U32LE:

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

        break;

    case CODEC_ID_PCM_U32BE:

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

        break;

    case CODEC_ID_PCM_S24LE:

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

        break;

    case CODEC_ID_PCM_S24BE:

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

        break;

    case CODEC_ID_PCM_U24LE:

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

        break;

    case CODEC_ID_PCM_U24BE:

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

        break;

    case CODEC_ID_PCM_S24DAUD:

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

          uint32_t v = bytestream_get_be24(&src);

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

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

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

          samples += 2;

        }

        break;

    case CODEC_ID_PCM_S16LE_PLANAR:

        n /= avctx->channels;

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

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

        for(;n>0;n--)

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

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

                samples += 2;

            }

        src = src2[avctx->channels-1];

        break;

    case CODEC_ID_PCM_U16LE:

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

        break;

    case CODEC_ID_PCM_U16BE:

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

        break;

    case CODEC_ID_PCM_S8:

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

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

        }

        break;

#if HAVE_BIGENDIAN

    case CODEC_ID_PCM_F64LE:

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

        break;

    case CODEC_ID_PCM_S32LE:

    case CODEC_ID_PCM_F32LE:

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

        break;

    case CODEC_ID_PCM_S16LE:

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

        break;

    case CODEC_ID_PCM_F64BE:

    case CODEC_ID_PCM_F32BE:

    case CODEC_ID_PCM_S32BE:

    case CODEC_ID_PCM_S16BE:

#else

    case CODEC_ID_PCM_F64BE:

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

        break;

    case CODEC_ID_PCM_F32BE:

    case CODEC_ID_PCM_S32BE:

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

        break;

    case CODEC_ID_PCM_S16BE:

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

        break;

    case CODEC_ID_PCM_F64LE:

    case CODEC_ID_PCM_F32LE:

    case CODEC_ID_PCM_S32LE:

    case CODEC_ID_PCM_S16LE:

#endif /* HAVE_BIGENDIAN */

    case CODEC_ID_PCM_U8:

        memcpy(samples, src, n*sample_size);

        src += n*sample_size;

        samples += n * sample_size;

        break;

    case CODEC_ID_PCM_ZORK:

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

            int x= *src++;

            if(x&128) x-= 128;

            else      x = -x;

            AV_WN16A(samples, x << 8);

            samples += 2;

        }

        break;

    case CODEC_ID_PCM_ALAW:

    case CODEC_ID_PCM_MULAW:

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

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

            samples += 2;

        }

        break;

    case CODEC_ID_PCM_DVD:

        dst_int32_t = data;

        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;

        default:

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

            return -1;

        }

        samples = (uint8_t *) dst_int32_t;

        break;

    case CODEC_ID_PCM_LXF:

        dst_int32_t = data;

        n /= avctx->channels;

        //unpack and de-planerize

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

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

                //extract low 20 bits and expand to 32 bits

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

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

            }



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

                //extract high 20 bits and expand to 32 bits

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

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

            }

        }

        src += n * avctx->channels * 5;

        samples = (uint8_t *) dst_int32_t;

        break;

    default:

        return -1;

    }

    *data_size = samples - (uint8_t *)data;

    return src - buf;

}

static int pcm_decode_frame(AVCodecContext *avctx,

                            void *data, int *data_size,

                            AVPacket *avpkt)

{

    const uint8_t *buf = avpkt->data;

    int buf_size = avpkt->size;

    PCMDecode *s = avctx->priv_data;

    int sample_size, c, n, i;

    uint8_t *samples;

    const uint8_t *src, *src8, *src2[MAX_CHANNELS];

    int32_t *dst_int32_t;



    samples = data;

    src = buf;



    if (avctx->sample_fmt!=avctx->codec->sample_fmts[0]) {

        av_log(avctx, AV_LOG_ERROR, "invalid sample_fmt\n");

        return -1;

    }



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

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

        return -1;

    }



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



    

    if (CODEC_ID_PCM_DVD == avctx->codec_id)

        

        sample_size = avctx->bits_per_coded_sample * 2 / 8;

    else if (avctx->codec_id == CODEC_ID_PCM_LXF)

        

        sample_size = 5;



    if (sample_size == 0) {

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

            return -1;

        }else

            buf_size -= buf_size % n;

    }



    buf_size= FFMIN(buf_size, *data_size/2);



    n = buf_size/sample_size;



    switch(avctx->codec->id) {

    case CODEC_ID_PCM_U32LE:

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

        break;

    case CODEC_ID_PCM_U32BE:

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

        break;

    case CODEC_ID_PCM_S24LE:

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

        break;

    case CODEC_ID_PCM_S24BE:

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

        break;

    case CODEC_ID_PCM_U24LE:

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

        break;

    case CODEC_ID_PCM_U24BE:

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

        break;

    case CODEC_ID_PCM_S24DAUD:

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

          uint32_t v = bytestream_get_be24(&src);

          v >>= 4; 

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

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

          samples += 2;

        }

        break;

    case CODEC_ID_PCM_S16LE_PLANAR:

        n /= avctx->channels;

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

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

        for(;n>0;n--)

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

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

                samples += 2;

            }

        src = src2[avctx->channels-1];

        break;

    case CODEC_ID_PCM_U16LE:

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

        break;

    case CODEC_ID_PCM_U16BE:

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

        break;

    case CODEC_ID_PCM_S8:

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

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

        }

        break;

#if HAVE_BIGENDIAN

    case CODEC_ID_PCM_F64LE:

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

        break;

    case CODEC_ID_PCM_S32LE:

    case CODEC_ID_PCM_F32LE:

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

        break;

    case CODEC_ID_PCM_S16LE:

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

        break;

    case CODEC_ID_PCM_F64BE:

    case CODEC_ID_PCM_F32BE:

    case CODEC_ID_PCM_S32BE:

    case CODEC_ID_PCM_S16BE:

#else

    case CODEC_ID_PCM_F64BE:

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

        break;

    case CODEC_ID_PCM_F32BE:

    case CODEC_ID_PCM_S32BE:

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

        break;

    case CODEC_ID_PCM_S16BE:

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

        break;

    case CODEC_ID_PCM_F64LE:

    case CODEC_ID_PCM_F32LE:

    case CODEC_ID_PCM_S32LE:

    case CODEC_ID_PCM_S16LE:

#endif 

    case CODEC_ID_PCM_U8:

        memcpy(samples, src, n*sample_size);

        src += n*sample_size;

        samples += n * sample_size;

        break;

    case CODEC_ID_PCM_ZORK:

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

            int x= *src++;

            if(x&128) x-= 128;

            else      x = -x;

            AV_WN16A(samples, x << 8);

            samples += 2;

        }

        break;

    case CODEC_ID_PCM_ALAW:

    case CODEC_ID_PCM_MULAW:

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

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

            samples += 2;

        }

        break;

    case CODEC_ID_PCM_DVD:

        dst_int32_t = data;

        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;

        default:

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

            return -1;

        }

        samples = (uint8_t *) dst_int32_t;

        break;

    case CODEC_ID_PCM_LXF:

        dst_int32_t = data;

        n /= avctx->channels;

        

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

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

                

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

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

            }



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

                

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

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

            }

        }

        src += n * avctx->channels * 5;

        samples = (uint8_t *) dst_int32_t;

        break;

    default:

        return -1;

    }

    *data_size = samples - (uint8_t *)data;

    return src - buf;

}

static int FUNC_0(AVCodecContext *VAR_0,

                            void *VAR_1, int *VAR_2,

                            AVPacket *VAR_3)

{

    const uint8_t *VAR_4 = VAR_3->VAR_1;

    int VAR_5 = VAR_3->size;

    PCMDecode *s = VAR_0->priv_data;

    int VAR_6, VAR_7, VAR_8, VAR_9;

    uint8_t *samples;

    const uint8_t *VAR_10, *src8, *src2[MAX_CHANNELS];

    int32_t *dst_int32_t;



    samples = VAR_1;

    VAR_10 = VAR_4;



    if (VAR_0->sample_fmt!=VAR_0->codec->sample_fmts[0]) {

        av_log(VAR_0, AV_LOG_ERROR, "invalid sample_fmt\VAR_8");

        return -1;

    }



    if(VAR_0->channels <= 0 || VAR_0->channels > MAX_CHANNELS){

        av_log(VAR_0, AV_LOG_ERROR, "PCM channels out of bounds\VAR_8");

        return -1;

    }



    VAR_6 = av_get_bits_per_sample(VAR_0->codec_id)/8;



    

    if (CODEC_ID_PCM_DVD == VAR_0->codec_id)

        

        VAR_6 = VAR_0->bits_per_coded_sample * 2 / 8;

    else if (VAR_0->codec_id == CODEC_ID_PCM_LXF)

        

        VAR_6 = 5;



    if (VAR_6 == 0) {

        av_log(VAR_0, AV_LOG_ERROR, "Invalid VAR_6\VAR_8");

        return AVERROR(EINVAL);

    }



    VAR_8 = VAR_0->channels * VAR_6;



    if(VAR_8 && VAR_5 % VAR_8){

        if (VAR_5 < VAR_8) {

            av_log(VAR_0, AV_LOG_ERROR, "invalid PCM packet\VAR_8");

            return -1;

        }else

            VAR_5 -= VAR_5 % VAR_8;

    }



    VAR_5= FFMIN(VAR_5, *VAR_2/2);



    VAR_8 = VAR_5/VAR_6;



    switch(VAR_0->codec->id) {

    case CODEC_ID_PCM_U32LE:

        DECODE(32, le32, VAR_10, samples, VAR_8, 0, 0x80000000)

        break;

    case CODEC_ID_PCM_U32BE:

        DECODE(32, be32, VAR_10, samples, VAR_8, 0, 0x80000000)

        break;

    case CODEC_ID_PCM_S24LE:

        DECODE(32, le24, VAR_10, samples, VAR_8, 8, 0)

        break;

    case CODEC_ID_PCM_S24BE:

        DECODE(32, be24, VAR_10, samples, VAR_8, 8, 0)

        break;

    case CODEC_ID_PCM_U24LE:

        DECODE(32, le24, VAR_10, samples, VAR_8, 8, 0x800000)

        break;

    case CODEC_ID_PCM_U24BE:

        DECODE(32, be24, VAR_10, samples, VAR_8, 8, 0x800000)

        break;

    case CODEC_ID_PCM_S24DAUD:

        for(;VAR_8>0;VAR_8--) {

          uint32_t v = bytestream_get_be24(&VAR_10);

          v >>= 4; 

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

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

          samples += 2;

        }

        break;

    case CODEC_ID_PCM_S16LE_PLANAR:

        VAR_8 /= VAR_0->channels;

        for(VAR_7=0;VAR_7<VAR_0->channels;VAR_7++)

            src2[VAR_7] = &VAR_10[VAR_7*VAR_8*2];

        for(;VAR_8>0;VAR_8--)

            for(VAR_7=0;VAR_7<VAR_0->channels;VAR_7++) {

                AV_WN16A(samples, bytestream_get_le16(&src2[VAR_7]));

                samples += 2;

            }

        VAR_10 = src2[VAR_0->channels-1];

        break;

    case CODEC_ID_PCM_U16LE:

        DECODE(16, le16, VAR_10, samples, VAR_8, 0, 0x8000)

        break;

    case CODEC_ID_PCM_U16BE:

        DECODE(16, be16, VAR_10, samples, VAR_8, 0, 0x8000)

        break;

    case CODEC_ID_PCM_S8:

        for(;VAR_8>0;VAR_8--) {

            *samples++ = *VAR_10++ + 128;

        }

        break;

#if HAVE_BIGENDIAN

    case CODEC_ID_PCM_F64LE:

        DECODE(64, le64, VAR_10, samples, VAR_8, 0, 0)

        break;

    case CODEC_ID_PCM_S32LE:

    case CODEC_ID_PCM_F32LE:

        DECODE(32, le32, VAR_10, samples, VAR_8, 0, 0)

        break;

    case CODEC_ID_PCM_S16LE:

        DECODE(16, le16, VAR_10, samples, VAR_8, 0, 0)

        break;

    case CODEC_ID_PCM_F64BE:

    case CODEC_ID_PCM_F32BE:

    case CODEC_ID_PCM_S32BE:

    case CODEC_ID_PCM_S16BE:

#else

    case CODEC_ID_PCM_F64BE:

        DECODE(64, be64, VAR_10, samples, VAR_8, 0, 0)

        break;

    case CODEC_ID_PCM_F32BE:

    case CODEC_ID_PCM_S32BE:

        DECODE(32, be32, VAR_10, samples, VAR_8, 0, 0)

        break;

    case CODEC_ID_PCM_S16BE:

        DECODE(16, be16, VAR_10, samples, VAR_8, 0, 0)

        break;

    case CODEC_ID_PCM_F64LE:

    case CODEC_ID_PCM_F32LE:

    case CODEC_ID_PCM_S32LE:

    case CODEC_ID_PCM_S16LE:

#endif 

    case CODEC_ID_PCM_U8:

        memcpy(samples, VAR_10, VAR_8*VAR_6);

        VAR_10 += VAR_8*VAR_6;

        samples += VAR_8 * VAR_6;

        break;

    case CODEC_ID_PCM_ZORK:

        for(;VAR_8>0;VAR_8--) {

            int VAR_11= *VAR_10++;

            if(VAR_11&128) VAR_11-= 128;

            else      VAR_11 = -VAR_11;

            AV_WN16A(samples, VAR_11 << 8);

            samples += 2;

        }

        break;

    case CODEC_ID_PCM_ALAW:

    case CODEC_ID_PCM_MULAW:

        for(;VAR_8>0;VAR_8--) {

            AV_WN16A(samples, s->table[*VAR_10++]);

            samples += 2;

        }

        break;

    case CODEC_ID_PCM_DVD:

        dst_int32_t = VAR_1;

        VAR_8 /= VAR_0->channels;

        switch (VAR_0->bits_per_coded_sample) {

        case 20:

            while (VAR_8--) {

                VAR_7 = VAR_0->channels;

                src8 = VAR_10 + 4*VAR_7;

                while (VAR_7--) {

                    *dst_int32_t++ = (bytestream_get_be16(&VAR_10) << 16) + ((*src8   &0xf0) << 8);

                    *dst_int32_t++ = (bytestream_get_be16(&VAR_10) << 16) + ((*src8++ &0x0f) << 12);

                }

                VAR_10 = src8;

            }

            break;

        case 24:

            while (VAR_8--) {

                VAR_7 = VAR_0->channels;

                src8 = VAR_10 + 4*VAR_7;

                while (VAR_7--) {

                    *dst_int32_t++ = (bytestream_get_be16(&VAR_10) << 16) + ((*src8++) << 8);

                    *dst_int32_t++ = (bytestream_get_be16(&VAR_10) << 16) + ((*src8++) << 8);

                }

                VAR_10 = src8;

            }

            break;

        default:

            av_log(VAR_0, AV_LOG_ERROR, "PCM DVD unsupported sample depth\VAR_8");

            return -1;

        }

        samples = (uint8_t *) dst_int32_t;

        break;

    case CODEC_ID_PCM_LXF:

        dst_int32_t = VAR_1;

        VAR_8 /= VAR_0->channels;

        

        for (VAR_9 = 0; VAR_9 < VAR_8; VAR_9++) {

            for (VAR_7 = 0, src8 = VAR_10 + VAR_9*5; VAR_7 < VAR_0->channels; VAR_7++, src8 += VAR_8*5) {

                

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

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

            }



            for (VAR_7 = 0, src8 = VAR_10 + VAR_9*5; VAR_7 < VAR_0->channels; VAR_7++, src8 += VAR_8*5) {

                

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

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

            }

        }

        VAR_10 += VAR_8 * VAR_0->channels * 5;

        samples = (uint8_t *) dst_int32_t;

        break;

    default:

        return -1;

    }

    *VAR_2 = samples - (uint8_t *)VAR_1;

    return VAR_10 - VAR_4;

}

static int FUNC_0(AVCodecContext *VAR_0,
void *VAR_1, int *VAR_2,
AVPacket *VAR_3)
{ const uint8_t *VAR_4 = VAR_3->VAR_1; int VAR_5 = VAR_3->size; PCMDecode *s = VAR_0->priv_data; int VAR_6, VAR_7, VAR_8, VAR_9; uint8_t *samples; const uint8_t *VAR_10, *src8, *src2[MAX_CHANNELS]; int32_t *dst_int32_t; samples = VAR_1; VAR_10 = VAR_4; if (VAR_0->sample_fmt!=VAR_0->codec->sample_fmts[0]) { av_log(VAR_0, AV_LOG_ERROR, "invalid sample_fmt\VAR_8"); return -1; } if(VAR_0->channels <= 0 || VAR_0->channels > MAX_CHANNELS){ av_log(VAR_0, AV_LOG_ERROR, "PCM channels out of bounds\VAR_8"); return -1; } VAR_6 = av_get_bits_per_sample(VAR_0->codec_id)/8; if (CODEC_ID_PCM_DVD == VAR_0->codec_id)
VAR_6 = VAR_0->bits_per_coded_sample * 2 / 8; else if (VAR_0->codec_id == CODEC_ID_PCM_LXF)
VAR_6 = 5; if (VAR_6 == 0) { av_log(VAR_0, AV_LOG_ERROR, "Invalid VAR_6\VAR_8"); return AVERROR(EINVAL); } VAR_8 = VAR_0->channels * VAR_6; if(VAR_8 && VAR_5 % VAR_8){ if (VAR_5 < VAR_8) { av_log(VAR_0, AV_LOG_ERROR, "invalid PCM packet\VAR_8"); return -1; }else VAR_5 -= VAR_5 % VAR_8; } VAR_5= FFMIN(VAR_5, *VAR_2/2); VAR_8 = VAR_5/VAR_6; switch(VAR_0->codec->id) { case CODEC_ID_PCM_U32LE:
DECODE(32, le32, VAR_10, samples, VAR_8, 0, 0x80000000)
break; case CODEC_ID_PCM_U32BE:
DECODE(32, be32, VAR_10, samples, VAR_8, 0, 0x80000000)
break; case CODEC_ID_PCM_S24LE:
DECODE(32, le24, VAR_10, samples, VAR_8, 8, 0)
break; case CODEC_ID_PCM_S24BE:
DECODE(32, be24, VAR_10, samples, VAR_8, 8, 0)
break; case CODEC_ID_PCM_U24LE:
DECODE(32, le24, VAR_10, samples, VAR_8, 8, 0x800000)
break; case CODEC_ID_PCM_U24BE:
DECODE(32, be24, VAR_10, samples, VAR_8, 8, 0x800000)
break; case CODEC_ID_PCM_S24DAUD:
for(;VAR_8>0;VAR_8--) { uint32_t v = bytestream_get_be24(&VAR_10); v >>= 4; AV_WN16A(samples, av_reverse[(v >> 8) & 0xff] +
(av_reverse[v & 0xff] << 8)); samples += 2; } break; case CODEC_ID_PCM_S16LE_PLANAR:
VAR_8 /= VAR_0->channels; for(VAR_7=0;VAR_7<VAR_0->channels;VAR_7++) src2[VAR_7] = &VAR_10[VAR_7*VAR_8*2]; for(;VAR_8>0;VAR_8--) for(VAR_7=0;VAR_7<VAR_0->channels;VAR_7++) { AV_WN16A(samples, bytestream_get_le16(&src2[VAR_7])); samples += 2; } VAR_10 = src2[VAR_0->channels-1]; break; case CODEC_ID_PCM_U16LE:
DECODE(16, le16, VAR_10, samples, VAR_8, 0, 0x8000)
break; case CODEC_ID_PCM_U16BE:
DECODE(16, be16, VAR_10, samples, VAR_8, 0, 0x8000)
break; case CODEC_ID_PCM_S8:
for(;VAR_8>0;VAR_8--) { *samples++ = *VAR_10++ + 128; } break; #if HAVE_BIGENDIAN
case CODEC_ID_PCM_F64LE:
DECODE(64, le64, VAR_10, samples, VAR_8, 0, 0)
break; case CODEC_ID_PCM_S32LE:
case CODEC_ID_PCM_F32LE:
DECODE(32, le32, VAR_10, samples, VAR_8, 0, 0)
break; case CODEC_ID_PCM_S16LE:
DECODE(16, le16, VAR_10, samples, VAR_8, 0, 0)
break; case CODEC_ID_PCM_F64BE:
case CODEC_ID_PCM_F32BE:
case CODEC_ID_PCM_S32BE:
case CODEC_ID_PCM_S16BE:
#else
case CODEC_ID_PCM_F64BE:
DECODE(64, be64, VAR_10, samples, VAR_8, 0, 0)
break; case CODEC_ID_PCM_F32BE:
case CODEC_ID_PCM_S32BE:
DECODE(32, be32, VAR_10, samples, VAR_8, 0, 0)
break; case CODEC_ID_PCM_S16BE:
DECODE(16, be16, VAR_10, samples, VAR_8, 0, 0)
break; case CODEC_ID_PCM_F64LE:
case CODEC_ID_PCM_F32LE:
case CODEC_ID_PCM_S32LE:
case CODEC_ID_PCM_S16LE:
#endif
case CODEC_ID_PCM_U8:
memcpy(samples, VAR_10, VAR_8*VAR_6); VAR_10 += VAR_8*VAR_6; samples += VAR_8 * VAR_6; break; case CODEC_ID_PCM_ZORK:
for(;VAR_8>0;VAR_8--) { int VAR_11= *VAR_10++; if(VAR_11&128) VAR_11-= 128; else      VAR_11 = -VAR_11; AV_WN16A(samples, VAR_11 << 8); samples += 2; } break; case CODEC_ID_PCM_ALAW:
case CODEC_ID_PCM_MULAW:
for(;VAR_8>0;VAR_8--) { AV_WN16A(samples, s->table[*VAR_10++]); samples += 2; } break; case CODEC_ID_PCM_DVD:
dst_int32_t = VAR_1; VAR_8 /= VAR_0->channels; switch (VAR_0->bits_per_coded_sample) { case 20:
while (VAR_8--) { VAR_7 = VAR_0->channels; src8 = VAR_10 + 4*VAR_7; while (VAR_7--) { *dst_int32_t++ = (bytestream_get_be16(&VAR_10) << 16) + ((*src8   &0xf0) << 8); *dst_int32_t++ = (bytestream_get_be16(&VAR_10) << 16) + ((*src8++ &0x0f) << 12); } VAR_10 = src8; } break; case 24:
while (VAR_8--) { VAR_7 = VAR_0->channels; src8 = VAR_10 + 4*VAR_7; while (VAR_7--) { *dst_int32_t++ = (bytestream_get_be16(&VAR_10) << 16) + ((*src8++) << 8); *dst_int32_t++ = (bytestream_get_be16(&VAR_10) << 16) + ((*src8++) << 8); } VAR_10 = src8; } break; default:
av_log(VAR_0, AV_LOG_ERROR, "PCM DVD unsupported sample depth\VAR_8"); return -1; } samples = (uint8_t *) dst_int32_t; break; case CODEC_ID_PCM_LXF:
dst_int32_t = VAR_1; VAR_8 /= VAR_0->channels; for (VAR_9 = 0; VAR_9 < VAR_8; VAR_9++) { for (VAR_7 = 0, src8 = VAR_10 + VAR_9*5; VAR_7 < VAR_0->channels; VAR_7++, src8 += VAR_8*5) { *dst_int32_t++ = (src8[2] << 28) | (src8[1] << 20) | (src8[0] << 12) |
((src8[2] & 0xF) << 8) | src8[1]; } for (VAR_7 = 0, src8 = VAR_10 + VAR_9*5; VAR_7 < VAR_0->channels; VAR_7++, src8 += VAR_8*5) { *dst_int32_t++ = (src8[4] << 24) | (src8[3] << 16) |
((src8[2] & 0xF0) << 8) | (src8[4] << 4) | (src8[3] >> 4); } } VAR_10 += VAR_8 * VAR_0->channels * 5; samples = (uint8_t *) dst_int32_t; break; default:
return -1; } *VAR_2 = samples - (uint8_t *)VAR_1; return VAR_10 - VAR_4; }