/*

 * 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 "libavutil/float_dsp.h"

#include "avcodec.h"

#include "bytestream.h"

#include "internal.h"

#include "mathops.h"

#include "pcm_tablegen.h"

{

    }

}

/**

 * 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);                         \

        }                                                               \

    }

                            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;

        }

#if HAVE_BIGENDIAN

    case AV_CODEC_ID_PCM_S64LE:

    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_S64BE:

    case AV_CODEC_ID_PCM_S32BE:

    case AV_CODEC_ID_PCM_S16BE:

#else

    case AV_CODEC_ID_PCM_F64BE:

    case AV_CODEC_ID_PCM_S32BE:

    case AV_CODEC_ID_PCM_F32LE:

    case AV_CODEC_ID_PCM_S64LE:

    case AV_CODEC_ID_PCM_S32LE:

    case AV_CODEC_ID_PCM_S16LE:

#endif /* HAVE_BIGENDIAN */

    case AV_CODEC_ID_PCM_U8:

#if HAVE_BIGENDIAN

    case AV_CODEC_ID_PCM_S16BE_PLANAR:

#else

    case AV_CODEC_ID_PCM_S32LE_PLANAR:

#endif /* HAVE_BIGENDIAN */

        }

        }

        }

        }

    }

}

typedef struct PCMDecode {

    short   table[256];

    AVFloatDSPContext *fdsp;

    float   scale;

} PCMDecode;

{

    int i;

    }

    case AV_CODEC_ID_PCM_F24LE:

    }

}

{

}

/**

 * 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, (uint ## size ## _t)(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, (uint ## size ##_t)(v - offset) << shift); \

            dst += size / 8;                                                   \

        }                                                                      \

    }

                            int *got_frame_ptr, AVPacket *avpkt)

{

    int sample_size, c, n, ret, samples_per_block;

    uint8_t *samples;

    int32_t *dst_int32_t;

    /* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */

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

    }

    }

    }

    }

                   "Invalid PCM packet, data has size %d but at least a size of %d was expected\n",

                   buf_size, n);

        } else

    }

    /* get output buffer */

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

        }

            int i;

        }

#if HAVE_BIGENDIAN

    case AV_CODEC_ID_PCM_S64LE:

    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:

    case AV_CODEC_ID_PCM_F24LE:

    case AV_CODEC_ID_PCM_F16LE:

        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_S64BE:

    case AV_CODEC_ID_PCM_S32BE:

    case AV_CODEC_ID_PCM_S16BE:

#else

    case AV_CODEC_ID_PCM_F64BE:

    case AV_CODEC_ID_PCM_S32BE:

    case AV_CODEC_ID_PCM_F32LE:

    case AV_CODEC_ID_PCM_F24LE:

    case AV_CODEC_ID_PCM_F16LE:

    case AV_CODEC_ID_PCM_S64LE:

    case AV_CODEC_ID_PCM_S32LE:

    case AV_CODEC_ID_PCM_S16LE:

#endif /* HAVE_BIGENDIAN */

    case AV_CODEC_ID_PCM_U8:

#if HAVE_BIGENDIAN

    case AV_CODEC_ID_PCM_S16BE_PLANAR:

#else

    case AV_CODEC_ID_PCM_S32LE_PLANAR:

#endif /* HAVE_BIGENDIAN */

        }

    case AV_CODEC_ID_PCM_MULAW:

    case AV_CODEC_ID_PCM_VIDC:

        }

    {

        int i;

                // extract low 20 bits and expand to 32 bits

                // extract high 20 bits and expand to 32 bits

            }

        }

    }

    }

    }

}

#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_,                                                 \

    .long_name    = NULL_IF_CONFIG_SMALL(long_name_),                       \

    .type         = AVMEDIA_TYPE_AUDIO,                                     \

    .id           = AV_CODEC_ID_ ## id_,                                    \

    .init         = pcm_encode_init,                                        \

    .encode2      = pcm_encode_frame,                                       \

    .capabilities = AV_CODEC_CAP_VARIABLE_FRAME_SIZE,                       \

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

                                                   AV_SAMPLE_FMT_NONE },    \

}

#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_,                                               \

    .long_name      = NULL_IF_CONFIG_SMALL(long_name_),                     \

    .type           = AVMEDIA_TYPE_AUDIO,                                   \

    .id             = AV_CODEC_ID_ ## id_,                                  \

    .priv_data_size = sizeof(PCMDecode),                                    \

    .init           = pcm_decode_init,                                      \

    .close          = pcm_decode_close,                                     \

    .decode         = pcm_decode_frame,                                     \

    .capabilities   = AV_CODEC_CAP_DR1,                                     \

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

                                                     AV_SAMPLE_FMT_NONE },  \

}

#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_F16LE,        AV_SAMPLE_FMT_FLT, pcm_f16le,        "PCM 16.8 floating point little-endian");

PCM_DECODER(PCM_F24LE,        AV_SAMPLE_FMT_FLT, pcm_f24le,        "PCM 24.0 floating point little-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_CODEC  (PCM_S64BE,        AV_SAMPLE_FMT_S64, pcm_s64be,        "PCM signed 64-bit big-endian");

PCM_CODEC  (PCM_S64LE,        AV_SAMPLE_FMT_S64, pcm_s64le,        "PCM signed 64-bit little-endian");

PCM_CODEC  (PCM_VIDC,         AV_SAMPLE_FMT_S16, pcm_vidc,         "PCM Archimedes VIDC");