yading@10: /*
yading@10:  * Copyright (c) 2001-2003 The ffmpeg Project
yading@10:  *
yading@10:  * first version by Francois Revol (revol@free.fr)
yading@10:  * fringe ADPCM codecs (e.g., DK3, DK4, Westwood)
yading@10:  *   by Mike Melanson (melanson@pcisys.net)
yading@10:  * CD-ROM XA ADPCM codec by BERO
yading@10:  * EA ADPCM decoder by Robin Kay (komadori@myrealbox.com)
yading@10:  * EA ADPCM R1/R2/R3 decoder by Peter Ross (pross@xvid.org)
yading@10:  * EA IMA EACS decoder by Peter Ross (pross@xvid.org)
yading@10:  * EA IMA SEAD decoder by Peter Ross (pross@xvid.org)
yading@10:  * EA ADPCM XAS decoder by Peter Ross (pross@xvid.org)
yading@10:  * MAXIS EA ADPCM decoder by Robert Marston (rmarston@gmail.com)
yading@10:  * THP ADPCM decoder by Marco Gerards (mgerards@xs4all.nl)
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: #include "avcodec.h"
yading@10: #include "get_bits.h"
yading@10: #include "put_bits.h"
yading@10: #include "bytestream.h"
yading@10: #include "adpcm.h"
yading@10: #include "adpcm_data.h"
yading@10: #include "internal.h"
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * ADPCM decoders
yading@10:  * Features and limitations:
yading@10:  *
yading@10:  * Reference documents:
yading@10:  * http://wiki.multimedia.cx/index.php?title=Category:ADPCM_Audio_Codecs
yading@10:  * http://www.pcisys.net/~melanson/codecs/simpleaudio.html [dead]
yading@10:  * http://www.geocities.com/SiliconValley/8682/aud3.txt [dead]
yading@10:  * http://openquicktime.sourceforge.net/
yading@10:  * XAnim sources (xa_codec.c) http://xanim.polter.net/
yading@10:  * http://www.cs.ucla.edu/~leec/mediabench/applications.html [dead]
yading@10:  * SoX source code http://sox.sourceforge.net/
yading@10:  *
yading@10:  * CD-ROM XA:
yading@10:  * http://ku-www.ss.titech.ac.jp/~yatsushi/xaadpcm.html [dead]
yading@10:  * vagpack & depack http://homepages.compuserve.de/bITmASTER32/psx-index.html [dead]
yading@10:  * readstr http://www.geocities.co.jp/Playtown/2004/
yading@10:  */
yading@10: 
yading@10: /* These are for CD-ROM XA ADPCM */
yading@10: static const int xa_adpcm_table[5][2] = {
yading@10:     {   0,   0 },
yading@10:     {  60,   0 },
yading@10:     { 115, -52 },
yading@10:     {  98, -55 },
yading@10:     { 122, -60 }
yading@10: };
yading@10: 
yading@10: static const int ea_adpcm_table[] = {
yading@10:     0,  240,  460,  392,
yading@10:     0,    0, -208, -220,
yading@10:     0,    1,    3,    4,
yading@10:     7,    8,   10,   11,
yading@10:     0,   -1,   -3,   -4
yading@10: };
yading@10: 
yading@10: // padded to zero where table size is less then 16
yading@10: static const int swf_index_tables[4][16] = {
yading@10:     /*2*/ { -1, 2 },
yading@10:     /*3*/ { -1, -1, 2, 4 },
yading@10:     /*4*/ { -1, -1, -1, -1, 2, 4, 6, 8 },
yading@10:     /*5*/ { -1, -1, -1, -1, -1, -1, -1, -1, 1, 2, 4, 6, 8, 10, 13, 16 }
yading@10: };
yading@10: 
yading@10: /* end of tables */
yading@10: 
yading@10: typedef struct ADPCMDecodeContext {
yading@10:     ADPCMChannelStatus status[6];
yading@10:     int vqa_version;                /**< VQA version. Used for ADPCM_IMA_WS */
yading@10: } ADPCMDecodeContext;
yading@10: 
yading@10: static av_cold int adpcm_decode_init(AVCodecContext * avctx)
yading@10: {
yading@10:     ADPCMDecodeContext *c = avctx->priv_data;
yading@10:     unsigned int min_channels = 1;
yading@10:     unsigned int max_channels = 2;
yading@10: 
yading@10:     switch(avctx->codec->id) {
yading@10:     case AV_CODEC_ID_ADPCM_EA:
yading@10:         min_channels = 2;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_AFC:
yading@10:     case AV_CODEC_ID_ADPCM_EA_R1:
yading@10:     case AV_CODEC_ID_ADPCM_EA_R2:
yading@10:     case AV_CODEC_ID_ADPCM_EA_R3:
yading@10:     case AV_CODEC_ID_ADPCM_EA_XAS:
yading@10:     case AV_CODEC_ID_ADPCM_THP:
yading@10:         max_channels = 6;
yading@10:         break;
yading@10:     }
yading@10:     if (avctx->channels < min_channels || avctx->channels > max_channels) {
yading@10:         av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
yading@10:         return AVERROR(EINVAL);
yading@10:     }
yading@10: 
yading@10:     switch(avctx->codec->id) {
yading@10:     case AV_CODEC_ID_ADPCM_CT:
yading@10:         c->status[0].step = c->status[1].step = 511;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_WAV:
yading@10:         if (avctx->bits_per_coded_sample != 4) {
yading@10:             av_log(avctx, AV_LOG_ERROR, "Only 4-bit ADPCM IMA WAV files are supported\n");
yading@10:             return -1;
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_APC:
yading@10:         if (avctx->extradata && avctx->extradata_size >= 8) {
yading@10:             c->status[0].predictor = AV_RL32(avctx->extradata);
yading@10:             c->status[1].predictor = AV_RL32(avctx->extradata + 4);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_WS:
yading@10:         if (avctx->extradata && avctx->extradata_size >= 2)
yading@10:             c->vqa_version = AV_RL16(avctx->extradata);
yading@10:         break;
yading@10:     default:
yading@10:         break;
yading@10:     }
yading@10: 
yading@10:     switch(avctx->codec->id) {
yading@10:         case AV_CODEC_ID_ADPCM_IMA_QT:
yading@10:         case AV_CODEC_ID_ADPCM_IMA_WAV:
yading@10:         case AV_CODEC_ID_ADPCM_4XM:
yading@10:         case AV_CODEC_ID_ADPCM_XA:
yading@10:         case AV_CODEC_ID_ADPCM_EA_R1:
yading@10:         case AV_CODEC_ID_ADPCM_EA_R2:
yading@10:         case AV_CODEC_ID_ADPCM_EA_R3:
yading@10:         case AV_CODEC_ID_ADPCM_EA_XAS:
yading@10:         case AV_CODEC_ID_ADPCM_THP:
yading@10:         case AV_CODEC_ID_ADPCM_AFC:
yading@10:             avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
yading@10:             break;
yading@10:         case AV_CODEC_ID_ADPCM_IMA_WS:
yading@10:             avctx->sample_fmt = c->vqa_version == 3 ? AV_SAMPLE_FMT_S16P :
yading@10:                                                       AV_SAMPLE_FMT_S16;
yading@10:             break;
yading@10:         default:
yading@10:             avctx->sample_fmt = AV_SAMPLE_FMT_S16;
yading@10:     }
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static inline short adpcm_ima_expand_nibble(ADPCMChannelStatus *c, char nibble, int shift)
yading@10: {
yading@10:     int step_index;
yading@10:     int predictor;
yading@10:     int sign, delta, diff, step;
yading@10: 
yading@10:     step = ff_adpcm_step_table[c->step_index];
yading@10:     step_index = c->step_index + ff_adpcm_index_table[(unsigned)nibble];
yading@10:     step_index = av_clip(step_index, 0, 88);
yading@10: 
yading@10:     sign = nibble & 8;
yading@10:     delta = nibble & 7;
yading@10:     /* perform direct multiplication instead of series of jumps proposed by
yading@10:      * the reference ADPCM implementation since modern CPUs can do the mults
yading@10:      * quickly enough */
yading@10:     diff = ((2 * delta + 1) * step) >> shift;
yading@10:     predictor = c->predictor;
yading@10:     if (sign) predictor -= diff;
yading@10:     else predictor += diff;
yading@10: 
yading@10:     c->predictor = av_clip_int16(predictor);
yading@10:     c->step_index = step_index;
yading@10: 
yading@10:     return (short)c->predictor;
yading@10: }
yading@10: 
yading@10: static inline int adpcm_ima_qt_expand_nibble(ADPCMChannelStatus *c, int nibble, int shift)
yading@10: {
yading@10:     int step_index;
yading@10:     int predictor;
yading@10:     int diff, step;
yading@10: 
yading@10:     step = ff_adpcm_step_table[c->step_index];
yading@10:     step_index = c->step_index + ff_adpcm_index_table[nibble];
yading@10:     step_index = av_clip(step_index, 0, 88);
yading@10: 
yading@10:     diff = step >> 3;
yading@10:     if (nibble & 4) diff += step;
yading@10:     if (nibble & 2) diff += step >> 1;
yading@10:     if (nibble & 1) diff += step >> 2;
yading@10: 
yading@10:     if (nibble & 8)
yading@10:         predictor = c->predictor - diff;
yading@10:     else
yading@10:         predictor = c->predictor + diff;
yading@10: 
yading@10:     c->predictor = av_clip_int16(predictor);
yading@10:     c->step_index = step_index;
yading@10: 
yading@10:     return c->predictor;
yading@10: }
yading@10: 
yading@10: static inline short adpcm_ms_expand_nibble(ADPCMChannelStatus *c, int nibble)
yading@10: {
yading@10:     int predictor;
yading@10: 
yading@10:     predictor = (((c->sample1) * (c->coeff1)) + ((c->sample2) * (c->coeff2))) / 64;
yading@10:     predictor += ((nibble & 0x08)?(nibble - 0x10):(nibble)) * c->idelta;
yading@10: 
yading@10:     c->sample2 = c->sample1;
yading@10:     c->sample1 = av_clip_int16(predictor);
yading@10:     c->idelta = (ff_adpcm_AdaptationTable[(int)nibble] * c->idelta) >> 8;
yading@10:     if (c->idelta < 16) c->idelta = 16;
yading@10: 
yading@10:     return c->sample1;
yading@10: }
yading@10: 
yading@10: static inline short adpcm_ima_oki_expand_nibble(ADPCMChannelStatus *c, int nibble)
yading@10: {
yading@10:     int step_index, predictor, sign, delta, diff, step;
yading@10: 
yading@10:     step = ff_adpcm_oki_step_table[c->step_index];
yading@10:     step_index = c->step_index + ff_adpcm_index_table[(unsigned)nibble];
yading@10:     step_index = av_clip(step_index, 0, 48);
yading@10: 
yading@10:     sign = nibble & 8;
yading@10:     delta = nibble & 7;
yading@10:     diff = ((2 * delta + 1) * step) >> 3;
yading@10:     predictor = c->predictor;
yading@10:     if (sign) predictor -= diff;
yading@10:     else predictor += diff;
yading@10: 
yading@10:     c->predictor = av_clip(predictor, -2048, 2047);
yading@10:     c->step_index = step_index;
yading@10: 
yading@10:     return c->predictor << 4;
yading@10: }
yading@10: 
yading@10: static inline short adpcm_ct_expand_nibble(ADPCMChannelStatus *c, char nibble)
yading@10: {
yading@10:     int sign, delta, diff;
yading@10:     int new_step;
yading@10: 
yading@10:     sign = nibble & 8;
yading@10:     delta = nibble & 7;
yading@10:     /* perform direct multiplication instead of series of jumps proposed by
yading@10:      * the reference ADPCM implementation since modern CPUs can do the mults
yading@10:      * quickly enough */
yading@10:     diff = ((2 * delta + 1) * c->step) >> 3;
yading@10:     /* predictor update is not so trivial: predictor is multiplied on 254/256 before updating */
yading@10:     c->predictor = ((c->predictor * 254) >> 8) + (sign ? -diff : diff);
yading@10:     c->predictor = av_clip_int16(c->predictor);
yading@10:     /* calculate new step and clamp it to range 511..32767 */
yading@10:     new_step = (ff_adpcm_AdaptationTable[nibble & 7] * c->step) >> 8;
yading@10:     c->step = av_clip(new_step, 511, 32767);
yading@10: 
yading@10:     return (short)c->predictor;
yading@10: }
yading@10: 
yading@10: static inline short adpcm_sbpro_expand_nibble(ADPCMChannelStatus *c, char nibble, int size, int shift)
yading@10: {
yading@10:     int sign, delta, diff;
yading@10: 
yading@10:     sign = nibble & (1<<(size-1));
yading@10:     delta = nibble & ((1<<(size-1))-1);
yading@10:     diff = delta << (7 + c->step + shift);
yading@10: 
yading@10:     /* clamp result */
yading@10:     c->predictor = av_clip(c->predictor + (sign ? -diff : diff), -16384,16256);
yading@10: 
yading@10:     /* calculate new step */
yading@10:     if (delta >= (2*size - 3) && c->step < 3)
yading@10:         c->step++;
yading@10:     else if (delta == 0 && c->step > 0)
yading@10:         c->step--;
yading@10: 
yading@10:     return (short) c->predictor;
yading@10: }
yading@10: 
yading@10: static inline short adpcm_yamaha_expand_nibble(ADPCMChannelStatus *c, unsigned char nibble)
yading@10: {
yading@10:     if(!c->step) {
yading@10:         c->predictor = 0;
yading@10:         c->step = 127;
yading@10:     }
yading@10: 
yading@10:     c->predictor += (c->step * ff_adpcm_yamaha_difflookup[nibble]) / 8;
yading@10:     c->predictor = av_clip_int16(c->predictor);
yading@10:     c->step = (c->step * ff_adpcm_yamaha_indexscale[nibble]) >> 8;
yading@10:     c->step = av_clip(c->step, 127, 24567);
yading@10:     return c->predictor;
yading@10: }
yading@10: 
yading@10: static int xa_decode(AVCodecContext *avctx, int16_t *out0, int16_t *out1,
yading@10:                      const uint8_t *in, ADPCMChannelStatus *left,
yading@10:                      ADPCMChannelStatus *right, int channels, int sample_offset)
yading@10: {
yading@10:     int i, j;
yading@10:     int shift,filter,f0,f1;
yading@10:     int s_1,s_2;
yading@10:     int d,s,t;
yading@10: 
yading@10:     out0 += sample_offset;
yading@10:     if (channels == 1)
yading@10:         out1 = out0 + 28;
yading@10:     else
yading@10:         out1 += sample_offset;
yading@10: 
yading@10:     for(i=0;i<4;i++) {
yading@10:         shift  = 12 - (in[4+i*2] & 15);
yading@10:         filter = in[4+i*2] >> 4;
yading@10:         if (filter >= FF_ARRAY_ELEMS(xa_adpcm_table)) {
yading@10:             avpriv_request_sample(avctx, "unknown XA-ADPCM filter %d", filter);
yading@10:             filter=0;
yading@10:         }
yading@10:         f0 = xa_adpcm_table[filter][0];
yading@10:         f1 = xa_adpcm_table[filter][1];
yading@10: 
yading@10:         s_1 = left->sample1;
yading@10:         s_2 = left->sample2;
yading@10: 
yading@10:         for(j=0;j<28;j++) {
yading@10:             d = in[16+i+j*4];
yading@10: 
yading@10:             t = sign_extend(d, 4);
yading@10:             s = ( t<<shift ) + ((s_1*f0 + s_2*f1+32)>>6);
yading@10:             s_2 = s_1;
yading@10:             s_1 = av_clip_int16(s);
yading@10:             out0[j] = s_1;
yading@10:         }
yading@10: 
yading@10:         if (channels == 2) {
yading@10:             left->sample1 = s_1;
yading@10:             left->sample2 = s_2;
yading@10:             s_1 = right->sample1;
yading@10:             s_2 = right->sample2;
yading@10:         }
yading@10: 
yading@10:         shift  = 12 - (in[5+i*2] & 15);
yading@10:         filter = in[5+i*2] >> 4;
yading@10:         if (filter >= FF_ARRAY_ELEMS(xa_adpcm_table)) {
yading@10:             avpriv_request_sample(avctx, "unknown XA-ADPCM filter %d", filter);
yading@10:             filter=0;
yading@10:         }
yading@10: 
yading@10:         f0 = xa_adpcm_table[filter][0];
yading@10:         f1 = xa_adpcm_table[filter][1];
yading@10: 
yading@10:         for(j=0;j<28;j++) {
yading@10:             d = in[16+i+j*4];
yading@10: 
yading@10:             t = sign_extend(d >> 4, 4);
yading@10:             s = ( t<<shift ) + ((s_1*f0 + s_2*f1+32)>>6);
yading@10:             s_2 = s_1;
yading@10:             s_1 = av_clip_int16(s);
yading@10:             out1[j] = s_1;
yading@10:         }
yading@10: 
yading@10:         if (channels == 2) {
yading@10:             right->sample1 = s_1;
yading@10:             right->sample2 = s_2;
yading@10:         } else {
yading@10:             left->sample1 = s_1;
yading@10:             left->sample2 = s_2;
yading@10:         }
yading@10: 
yading@10:         out0 += 28 * (3 - channels);
yading@10:         out1 += 28 * (3 - channels);
yading@10:     }
yading@10: 
yading@10:     return 0;
yading@10: }
yading@10: 
yading@10: static void adpcm_swf_decode(AVCodecContext *avctx, const uint8_t *buf, int buf_size, int16_t *samples)
yading@10: {
yading@10:     ADPCMDecodeContext *c = avctx->priv_data;
yading@10:     GetBitContext gb;
yading@10:     const int *table;
yading@10:     int k0, signmask, nb_bits, count;
yading@10:     int size = buf_size*8;
yading@10:     int i;
yading@10: 
yading@10:     init_get_bits(&gb, buf, size);
yading@10: 
yading@10:     //read bits & initial values
yading@10:     nb_bits = get_bits(&gb, 2)+2;
yading@10:     table = swf_index_tables[nb_bits-2];
yading@10:     k0 = 1 << (nb_bits-2);
yading@10:     signmask = 1 << (nb_bits-1);
yading@10: 
yading@10:     while (get_bits_count(&gb) <= size - 22*avctx->channels) {
yading@10:         for (i = 0; i < avctx->channels; i++) {
yading@10:             *samples++ = c->status[i].predictor = get_sbits(&gb, 16);
yading@10:             c->status[i].step_index = get_bits(&gb, 6);
yading@10:         }
yading@10: 
yading@10:         for (count = 0; get_bits_count(&gb) <= size - nb_bits*avctx->channels && count < 4095; count++) {
yading@10:             int i;
yading@10: 
yading@10:             for (i = 0; i < avctx->channels; i++) {
yading@10:                 // similar to IMA adpcm
yading@10:                 int delta = get_bits(&gb, nb_bits);
yading@10:                 int step = ff_adpcm_step_table[c->status[i].step_index];
yading@10:                 long vpdiff = 0; // vpdiff = (delta+0.5)*step/4
yading@10:                 int k = k0;
yading@10: 
yading@10:                 do {
yading@10:                     if (delta & k)
yading@10:                         vpdiff += step;
yading@10:                     step >>= 1;
yading@10:                     k >>= 1;
yading@10:                 } while(k);
yading@10:                 vpdiff += step;
yading@10: 
yading@10:                 if (delta & signmask)
yading@10:                     c->status[i].predictor -= vpdiff;
yading@10:                 else
yading@10:                     c->status[i].predictor += vpdiff;
yading@10: 
yading@10:                 c->status[i].step_index += table[delta & (~signmask)];
yading@10: 
yading@10:                 c->status[i].step_index = av_clip(c->status[i].step_index, 0, 88);
yading@10:                 c->status[i].predictor = av_clip_int16(c->status[i].predictor);
yading@10: 
yading@10:                 *samples++ = c->status[i].predictor;
yading@10:             }
yading@10:         }
yading@10:     }
yading@10: }
yading@10: 
yading@10: /**
yading@10:  * Get the number of samples that will be decoded from the packet.
yading@10:  * In one case, this is actually the maximum number of samples possible to
yading@10:  * decode with the given buf_size.
yading@10:  *
yading@10:  * @param[out] coded_samples set to the number of samples as coded in the
yading@10:  *                           packet, or 0 if the codec does not encode the
yading@10:  *                           number of samples in each frame.
yading@10:  */
yading@10: static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb,
yading@10:                           int buf_size, int *coded_samples)
yading@10: {
yading@10:     ADPCMDecodeContext *s = avctx->priv_data;
yading@10:     int nb_samples        = 0;
yading@10:     int ch                = avctx->channels;
yading@10:     int has_coded_samples = 0;
yading@10:     int header_size;
yading@10: 
yading@10:     *coded_samples = 0;
yading@10: 
yading@10:     if(ch <= 0)
yading@10:         return 0;
yading@10: 
yading@10:     switch (avctx->codec->id) {
yading@10:     /* constant, only check buf_size */
yading@10:     case AV_CODEC_ID_ADPCM_EA_XAS:
yading@10:         if (buf_size < 76 * ch)
yading@10:             return 0;
yading@10:         nb_samples = 128;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_QT:
yading@10:         if (buf_size < 34 * ch)
yading@10:             return 0;
yading@10:         nb_samples = 64;
yading@10:         break;
yading@10:     /* simple 4-bit adpcm */
yading@10:     case AV_CODEC_ID_ADPCM_CT:
yading@10:     case AV_CODEC_ID_ADPCM_IMA_APC:
yading@10:     case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
yading@10:     case AV_CODEC_ID_ADPCM_IMA_OKI:
yading@10:     case AV_CODEC_ID_ADPCM_IMA_WS:
yading@10:     case AV_CODEC_ID_ADPCM_YAMAHA:
yading@10:         nb_samples = buf_size * 2 / ch;
yading@10:         break;
yading@10:     }
yading@10:     if (nb_samples)
yading@10:         return nb_samples;
yading@10: 
yading@10:     /* simple 4-bit adpcm, with header */
yading@10:     header_size = 0;
yading@10:     switch (avctx->codec->id) {
yading@10:         case AV_CODEC_ID_ADPCM_4XM:
yading@10:         case AV_CODEC_ID_ADPCM_IMA_ISS:     header_size = 4 * ch;      break;
yading@10:         case AV_CODEC_ID_ADPCM_IMA_AMV:     header_size = 8;           break;
yading@10:         case AV_CODEC_ID_ADPCM_IMA_SMJPEG:  header_size = 4 * ch;      break;
yading@10:     }
yading@10:     if (header_size > 0)
yading@10:         return (buf_size - header_size) * 2 / ch;
yading@10: 
yading@10:     /* more complex formats */
yading@10:     switch (avctx->codec->id) {
yading@10:     case AV_CODEC_ID_ADPCM_EA:
yading@10:         has_coded_samples = 1;
yading@10:         *coded_samples  = bytestream2_get_le32(gb);
yading@10:         *coded_samples -= *coded_samples % 28;
yading@10:         nb_samples      = (buf_size - 12) / 30 * 28;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
yading@10:         has_coded_samples = 1;
yading@10:         *coded_samples = bytestream2_get_le32(gb);
yading@10:         nb_samples     = (buf_size - (4 + 8 * ch)) * 2 / ch;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_EA_MAXIS_XA:
yading@10:         nb_samples = (buf_size - ch) / ch * 2;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_EA_R1:
yading@10:     case AV_CODEC_ID_ADPCM_EA_R2:
yading@10:     case AV_CODEC_ID_ADPCM_EA_R3:
yading@10:         /* maximum number of samples */
yading@10:         /* has internal offsets and a per-frame switch to signal raw 16-bit */
yading@10:         has_coded_samples = 1;
yading@10:         switch (avctx->codec->id) {
yading@10:         case AV_CODEC_ID_ADPCM_EA_R1:
yading@10:             header_size    = 4 + 9 * ch;
yading@10:             *coded_samples = bytestream2_get_le32(gb);
yading@10:             break;
yading@10:         case AV_CODEC_ID_ADPCM_EA_R2:
yading@10:             header_size    = 4 + 5 * ch;
yading@10:             *coded_samples = bytestream2_get_le32(gb);
yading@10:             break;
yading@10:         case AV_CODEC_ID_ADPCM_EA_R3:
yading@10:             header_size    = 4 + 5 * ch;
yading@10:             *coded_samples = bytestream2_get_be32(gb);
yading@10:             break;
yading@10:         }
yading@10:         *coded_samples -= *coded_samples % 28;
yading@10:         nb_samples      = (buf_size - header_size) * 2 / ch;
yading@10:         nb_samples     -= nb_samples % 28;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_DK3:
yading@10:         if (avctx->block_align > 0)
yading@10:             buf_size = FFMIN(buf_size, avctx->block_align);
yading@10:         nb_samples = ((buf_size - 16) * 2 / 3 * 4) / ch;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_DK4:
yading@10:         if (avctx->block_align > 0)
yading@10:             buf_size = FFMIN(buf_size, avctx->block_align);
yading@10:         nb_samples = 1 + (buf_size - 4 * ch) * 2 / ch;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_WAV:
yading@10:         if (avctx->block_align > 0)
yading@10:             buf_size = FFMIN(buf_size, avctx->block_align);
yading@10:         nb_samples = 1 + (buf_size - 4 * ch) / (4 * ch) * 8;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_MS:
yading@10:         if (avctx->block_align > 0)
yading@10:             buf_size = FFMIN(buf_size, avctx->block_align);
yading@10:         nb_samples = 2 + (buf_size - 7 * ch) * 2 / ch;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_SBPRO_2:
yading@10:     case AV_CODEC_ID_ADPCM_SBPRO_3:
yading@10:     case AV_CODEC_ID_ADPCM_SBPRO_4:
yading@10:     {
yading@10:         int samples_per_byte;
yading@10:         switch (avctx->codec->id) {
yading@10:         case AV_CODEC_ID_ADPCM_SBPRO_2: samples_per_byte = 4; break;
yading@10:         case AV_CODEC_ID_ADPCM_SBPRO_3: samples_per_byte = 3; break;
yading@10:         case AV_CODEC_ID_ADPCM_SBPRO_4: samples_per_byte = 2; break;
yading@10:         }
yading@10:         if (!s->status[0].step_index) {
yading@10:             nb_samples++;
yading@10:             buf_size -= ch;
yading@10:         }
yading@10:         nb_samples += buf_size * samples_per_byte / ch;
yading@10:         break;
yading@10:     }
yading@10:     case AV_CODEC_ID_ADPCM_SWF:
yading@10:     {
yading@10:         int buf_bits       = buf_size * 8 - 2;
yading@10:         int nbits          = (bytestream2_get_byte(gb) >> 6) + 2;
yading@10:         int block_hdr_size = 22 * ch;
yading@10:         int block_size     = block_hdr_size + nbits * ch * 4095;
yading@10:         int nblocks        = buf_bits / block_size;
yading@10:         int bits_left      = buf_bits - nblocks * block_size;
yading@10:         nb_samples         = nblocks * 4096;
yading@10:         if (bits_left >= block_hdr_size)
yading@10:             nb_samples += 1 + (bits_left - block_hdr_size) / (nbits * ch);
yading@10:         break;
yading@10:     }
yading@10:     case AV_CODEC_ID_ADPCM_THP:
yading@10:         has_coded_samples = 1;
yading@10:         bytestream2_skip(gb, 4); // channel size
yading@10:         *coded_samples  = bytestream2_get_be32(gb);
yading@10:         *coded_samples -= *coded_samples % 14;
yading@10:         nb_samples      = (buf_size - (8 + 36 * ch)) / (8 * ch) * 14;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_AFC:
yading@10:         nb_samples = buf_size / (9 * ch) * 16;
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_XA:
yading@10:         nb_samples = (buf_size / 128) * 224 / ch;
yading@10:         break;
yading@10:     }
yading@10: 
yading@10:     /* validate coded sample count */
yading@10:     if (has_coded_samples && (*coded_samples <= 0 || *coded_samples > nb_samples))
yading@10:         return AVERROR_INVALIDDATA;
yading@10: 
yading@10:     return nb_samples;
yading@10: }
yading@10: 
yading@10: static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
yading@10:                               int *got_frame_ptr, AVPacket *avpkt)
yading@10: {
yading@10:     AVFrame *frame     = data;
yading@10:     const uint8_t *buf = avpkt->data;
yading@10:     int buf_size = avpkt->size;
yading@10:     ADPCMDecodeContext *c = avctx->priv_data;
yading@10:     ADPCMChannelStatus *cs;
yading@10:     int n, m, channel, i;
yading@10:     short *samples;
yading@10:     int16_t **samples_p;
yading@10:     int st; /* stereo */
yading@10:     int count1, count2;
yading@10:     int nb_samples, coded_samples, ret;
yading@10:     GetByteContext gb;
yading@10: 
yading@10:     bytestream2_init(&gb, buf, buf_size);
yading@10:     nb_samples = get_nb_samples(avctx, &gb, buf_size, &coded_samples);
yading@10:     if (nb_samples <= 0) {
yading@10:         av_log(avctx, AV_LOG_ERROR, "invalid number of samples in packet\n");
yading@10:         return AVERROR_INVALIDDATA;
yading@10:     }
yading@10: 
yading@10:     /* get output buffer */
yading@10:     frame->nb_samples = nb_samples;
yading@10:     if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
yading@10:         return ret;
yading@10:     samples = (short *)frame->data[0];
yading@10:     samples_p = (int16_t **)frame->extended_data;
yading@10: 
yading@10:     /* use coded_samples when applicable */
yading@10:     /* it is always <= nb_samples, so the output buffer will be large enough */
yading@10:     if (coded_samples) {
yading@10:         if (coded_samples != nb_samples)
yading@10:             av_log(avctx, AV_LOG_WARNING, "mismatch in coded sample count\n");
yading@10:         frame->nb_samples = nb_samples = coded_samples;
yading@10:     }
yading@10: 
yading@10:     st = avctx->channels == 2 ? 1 : 0;
yading@10: 
yading@10:     switch(avctx->codec->id) {
yading@10:     case AV_CODEC_ID_ADPCM_IMA_QT:
yading@10:         /* In QuickTime, IMA is encoded by chunks of 34 bytes (=64 samples).
yading@10:            Channel data is interleaved per-chunk. */
yading@10:         for (channel = 0; channel < avctx->channels; channel++) {
yading@10:             int predictor;
yading@10:             int step_index;
yading@10:             cs = &(c->status[channel]);
yading@10:             /* (pppppp) (piiiiiii) */
yading@10: 
yading@10:             /* Bits 15-7 are the _top_ 9 bits of the 16-bit initial predictor value */
yading@10:             predictor = sign_extend(bytestream2_get_be16u(&gb), 16);
yading@10:             step_index = predictor & 0x7F;
yading@10:             predictor &= ~0x7F;
yading@10: 
yading@10:             if (cs->step_index == step_index) {
yading@10:                 int diff = predictor - cs->predictor;
yading@10:                 if (diff < 0)
yading@10:                     diff = - diff;
yading@10:                 if (diff > 0x7f)
yading@10:                     goto update;
yading@10:             } else {
yading@10:             update:
yading@10:                 cs->step_index = step_index;
yading@10:                 cs->predictor = predictor;
yading@10:             }
yading@10: 
yading@10:             if (cs->step_index > 88u){
yading@10:                 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
yading@10:                        channel, cs->step_index);
yading@10:                 return AVERROR_INVALIDDATA;
yading@10:             }
yading@10: 
yading@10:             samples = samples_p[channel];
yading@10: 
yading@10:             for (m = 0; m < 64; m += 2) {
yading@10:                 int byte = bytestream2_get_byteu(&gb);
yading@10:                 samples[m    ] = adpcm_ima_qt_expand_nibble(cs, byte & 0x0F, 3);
yading@10:                 samples[m + 1] = adpcm_ima_qt_expand_nibble(cs, byte >> 4  , 3);
yading@10:             }
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_WAV:
yading@10:         for(i=0; i<avctx->channels; i++){
yading@10:             cs = &(c->status[i]);
yading@10:             cs->predictor = samples_p[i][0] = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10: 
yading@10:             cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:             if (cs->step_index > 88u){
yading@10:                 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
yading@10:                        i, cs->step_index);
yading@10:                 return AVERROR_INVALIDDATA;
yading@10:             }
yading@10:         }
yading@10: 
yading@10:         for (n = 0; n < (nb_samples - 1) / 8; n++) {
yading@10:             for (i = 0; i < avctx->channels; i++) {
yading@10:                 cs = &c->status[i];
yading@10:                 samples = &samples_p[i][1 + n * 8];
yading@10:                 for (m = 0; m < 8; m += 2) {
yading@10:                     int v = bytestream2_get_byteu(&gb);
yading@10:                     samples[m    ] = adpcm_ima_expand_nibble(cs, v & 0x0F, 3);
yading@10:                     samples[m + 1] = adpcm_ima_expand_nibble(cs, v >> 4  , 3);
yading@10:                 }
yading@10:             }
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_4XM:
yading@10:         for (i = 0; i < avctx->channels; i++)
yading@10:             c->status[i].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10: 
yading@10:         for (i = 0; i < avctx->channels; i++) {
yading@10:             c->status[i].step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:             if (c->status[i].step_index > 88u) {
yading@10:                 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
yading@10:                        i, c->status[i].step_index);
yading@10:                 return AVERROR_INVALIDDATA;
yading@10:             }
yading@10:         }
yading@10: 
yading@10:         for (i = 0; i < avctx->channels; i++) {
yading@10:             samples = (int16_t *)frame->data[i];
yading@10:             cs = &c->status[i];
yading@10:             for (n = nb_samples >> 1; n > 0; n--) {
yading@10:                 int v = bytestream2_get_byteu(&gb);
yading@10:                 *samples++ = adpcm_ima_expand_nibble(cs, v & 0x0F, 4);
yading@10:                 *samples++ = adpcm_ima_expand_nibble(cs, v >> 4  , 4);
yading@10:             }
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_MS:
yading@10:     {
yading@10:         int block_predictor;
yading@10: 
yading@10:         block_predictor = bytestream2_get_byteu(&gb);
yading@10:         if (block_predictor > 6) {
yading@10:             av_log(avctx, AV_LOG_ERROR, "ERROR: block_predictor[0] = %d\n",
yading@10:                    block_predictor);
yading@10:             return AVERROR_INVALIDDATA;
yading@10:         }
yading@10:         c->status[0].coeff1 = ff_adpcm_AdaptCoeff1[block_predictor];
yading@10:         c->status[0].coeff2 = ff_adpcm_AdaptCoeff2[block_predictor];
yading@10:         if (st) {
yading@10:             block_predictor = bytestream2_get_byteu(&gb);
yading@10:             if (block_predictor > 6) {
yading@10:                 av_log(avctx, AV_LOG_ERROR, "ERROR: block_predictor[1] = %d\n",
yading@10:                        block_predictor);
yading@10:                 return AVERROR_INVALIDDATA;
yading@10:             }
yading@10:             c->status[1].coeff1 = ff_adpcm_AdaptCoeff1[block_predictor];
yading@10:             c->status[1].coeff2 = ff_adpcm_AdaptCoeff2[block_predictor];
yading@10:         }
yading@10:         c->status[0].idelta = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         if (st){
yading@10:             c->status[1].idelta = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         }
yading@10: 
yading@10:         c->status[0].sample1 = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         if (st) c->status[1].sample1 = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         c->status[0].sample2 = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         if (st) c->status[1].sample2 = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10: 
yading@10:         *samples++ = c->status[0].sample2;
yading@10:         if (st) *samples++ = c->status[1].sample2;
yading@10:         *samples++ = c->status[0].sample1;
yading@10:         if (st) *samples++ = c->status[1].sample1;
yading@10:         for(n = (nb_samples - 2) >> (1 - st); n > 0; n--) {
yading@10:             int byte = bytestream2_get_byteu(&gb);
yading@10:             *samples++ = adpcm_ms_expand_nibble(&c->status[0 ], byte >> 4  );
yading@10:             *samples++ = adpcm_ms_expand_nibble(&c->status[st], byte & 0x0F);
yading@10:         }
yading@10:         break;
yading@10:     }
yading@10:     case AV_CODEC_ID_ADPCM_IMA_DK4:
yading@10:         for (channel = 0; channel < avctx->channels; channel++) {
yading@10:             cs = &c->status[channel];
yading@10:             cs->predictor  = *samples++ = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:             cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:             if (cs->step_index > 88u){
yading@10:                 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
yading@10:                        channel, cs->step_index);
yading@10:                 return AVERROR_INVALIDDATA;
yading@10:             }
yading@10:         }
yading@10:         for (n = (nb_samples - 1) >> (1 - st); n > 0; n--) {
yading@10:             int v = bytestream2_get_byteu(&gb);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[0 ], v >> 4  , 3);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[st], v & 0x0F, 3);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_DK3:
yading@10:     {
yading@10:         int last_byte = 0;
yading@10:         int nibble;
yading@10:         int decode_top_nibble_next = 0;
yading@10:         int diff_channel;
yading@10:         const int16_t *samples_end = samples + avctx->channels * nb_samples;
yading@10: 
yading@10:         bytestream2_skipu(&gb, 10);
yading@10:         c->status[0].predictor  = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         c->status[1].predictor  = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         c->status[0].step_index = bytestream2_get_byteu(&gb);
yading@10:         c->status[1].step_index = bytestream2_get_byteu(&gb);
yading@10:         if (c->status[0].step_index > 88u || c->status[1].step_index > 88u){
yading@10:             av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i/%i\n",
yading@10:                    c->status[0].step_index, c->status[1].step_index);
yading@10:             return AVERROR_INVALIDDATA;
yading@10:         }
yading@10:         /* sign extend the predictors */
yading@10:         diff_channel = c->status[1].predictor;
yading@10: 
yading@10:         /* DK3 ADPCM support macro */
yading@10: #define DK3_GET_NEXT_NIBBLE() \
yading@10:     if (decode_top_nibble_next) { \
yading@10:         nibble = last_byte >> 4; \
yading@10:         decode_top_nibble_next = 0; \
yading@10:     } else { \
yading@10:         last_byte = bytestream2_get_byteu(&gb); \
yading@10:         nibble = last_byte & 0x0F; \
yading@10:         decode_top_nibble_next = 1; \
yading@10:     }
yading@10: 
yading@10:         while (samples < samples_end) {
yading@10: 
yading@10:             /* for this algorithm, c->status[0] is the sum channel and
yading@10:              * c->status[1] is the diff channel */
yading@10: 
yading@10:             /* process the first predictor of the sum channel */
yading@10:             DK3_GET_NEXT_NIBBLE();
yading@10:             adpcm_ima_expand_nibble(&c->status[0], nibble, 3);
yading@10: 
yading@10:             /* process the diff channel predictor */
yading@10:             DK3_GET_NEXT_NIBBLE();
yading@10:             adpcm_ima_expand_nibble(&c->status[1], nibble, 3);
yading@10: 
yading@10:             /* process the first pair of stereo PCM samples */
yading@10:             diff_channel = (diff_channel + c->status[1].predictor) / 2;
yading@10:             *samples++ = c->status[0].predictor + c->status[1].predictor;
yading@10:             *samples++ = c->status[0].predictor - c->status[1].predictor;
yading@10: 
yading@10:             /* process the second predictor of the sum channel */
yading@10:             DK3_GET_NEXT_NIBBLE();
yading@10:             adpcm_ima_expand_nibble(&c->status[0], nibble, 3);
yading@10: 
yading@10:             /* process the second pair of stereo PCM samples */
yading@10:             diff_channel = (diff_channel + c->status[1].predictor) / 2;
yading@10:             *samples++ = c->status[0].predictor + c->status[1].predictor;
yading@10:             *samples++ = c->status[0].predictor - c->status[1].predictor;
yading@10:         }
yading@10:         break;
yading@10:     }
yading@10:     case AV_CODEC_ID_ADPCM_IMA_ISS:
yading@10:         for (channel = 0; channel < avctx->channels; channel++) {
yading@10:             cs = &c->status[channel];
yading@10:             cs->predictor  = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:             cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:             if (cs->step_index > 88u){
yading@10:                 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
yading@10:                        channel, cs->step_index);
yading@10:                 return AVERROR_INVALIDDATA;
yading@10:             }
yading@10:         }
yading@10: 
yading@10:         for (n = nb_samples >> (1 - st); n > 0; n--) {
yading@10:             int v1, v2;
yading@10:             int v = bytestream2_get_byteu(&gb);
yading@10:             /* nibbles are swapped for mono */
yading@10:             if (st) {
yading@10:                 v1 = v >> 4;
yading@10:                 v2 = v & 0x0F;
yading@10:             } else {
yading@10:                 v2 = v >> 4;
yading@10:                 v1 = v & 0x0F;
yading@10:             }
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[0 ], v1, 3);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[st], v2, 3);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_APC:
yading@10:         while (bytestream2_get_bytes_left(&gb) > 0) {
yading@10:             int v = bytestream2_get_byteu(&gb);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[0],  v >> 4  , 3);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[st], v & 0x0F, 3);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_OKI:
yading@10:         while (bytestream2_get_bytes_left(&gb) > 0) {
yading@10:             int v = bytestream2_get_byteu(&gb);
yading@10:             *samples++ = adpcm_ima_oki_expand_nibble(&c->status[0],  v >> 4  );
yading@10:             *samples++ = adpcm_ima_oki_expand_nibble(&c->status[st], v & 0x0F);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_WS:
yading@10:         if (c->vqa_version == 3) {
yading@10:             for (channel = 0; channel < avctx->channels; channel++) {
yading@10:                 int16_t *smp = samples_p[channel];
yading@10: 
yading@10:                 for (n = nb_samples / 2; n > 0; n--) {
yading@10:                     int v = bytestream2_get_byteu(&gb);
yading@10:                     *smp++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4  , 3);
yading@10:                     *smp++ = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
yading@10:                 }
yading@10:             }
yading@10:         } else {
yading@10:             for (n = nb_samples / 2; n > 0; n--) {
yading@10:                 for (channel = 0; channel < avctx->channels; channel++) {
yading@10:                     int v = bytestream2_get_byteu(&gb);
yading@10:                     *samples++  = adpcm_ima_expand_nibble(&c->status[channel], v >> 4  , 3);
yading@10:                     samples[st] = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
yading@10:                 }
yading@10:                 samples += avctx->channels;
yading@10:             }
yading@10:         }
yading@10:         bytestream2_seek(&gb, 0, SEEK_END);
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_XA:
yading@10:     {
yading@10:         int16_t *out0 = samples_p[0];
yading@10:         int16_t *out1 = samples_p[1];
yading@10:         int samples_per_block = 28 * (3 - avctx->channels) * 4;
yading@10:         int sample_offset = 0;
yading@10:         while (bytestream2_get_bytes_left(&gb) >= 128) {
yading@10:             if ((ret = xa_decode(avctx, out0, out1, buf + bytestream2_tell(&gb),
yading@10:                                  &c->status[0], &c->status[1],
yading@10:                                  avctx->channels, sample_offset)) < 0)
yading@10:                 return ret;
yading@10:             bytestream2_skipu(&gb, 128);
yading@10:             sample_offset += samples_per_block;
yading@10:         }
yading@10:         break;
yading@10:     }
yading@10:     case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
yading@10:         for (i=0; i<=st; i++) {
yading@10:             c->status[i].step_index = bytestream2_get_le32u(&gb);
yading@10:             if (c->status[i].step_index > 88u) {
yading@10:                 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
yading@10:                        i, c->status[i].step_index);
yading@10:                 return AVERROR_INVALIDDATA;
yading@10:             }
yading@10:         }
yading@10:         for (i=0; i<=st; i++)
yading@10:             c->status[i].predictor  = bytestream2_get_le32u(&gb);
yading@10: 
yading@10:         for (n = nb_samples >> (1 - st); n > 0; n--) {
yading@10:             int byte   = bytestream2_get_byteu(&gb);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[0],  byte >> 4,   3);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[st], byte & 0x0F, 3);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
yading@10:         for (n = nb_samples >> (1 - st); n > 0; n--) {
yading@10:             int byte = bytestream2_get_byteu(&gb);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[0],  byte >> 4,   6);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[st], byte & 0x0F, 6);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_EA:
yading@10:     {
yading@10:         int previous_left_sample, previous_right_sample;
yading@10:         int current_left_sample, current_right_sample;
yading@10:         int next_left_sample, next_right_sample;
yading@10:         int coeff1l, coeff2l, coeff1r, coeff2r;
yading@10:         int shift_left, shift_right;
yading@10: 
yading@10:         /* Each EA ADPCM frame has a 12-byte header followed by 30-byte pieces,
yading@10:            each coding 28 stereo samples. */
yading@10: 
yading@10:         if(avctx->channels != 2)
yading@10:             return AVERROR_INVALIDDATA;
yading@10: 
yading@10:         current_left_sample   = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         previous_left_sample  = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         current_right_sample  = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         previous_right_sample = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10: 
yading@10:         for (count1 = 0; count1 < nb_samples / 28; count1++) {
yading@10:             int byte = bytestream2_get_byteu(&gb);
yading@10:             coeff1l = ea_adpcm_table[ byte >> 4       ];
yading@10:             coeff2l = ea_adpcm_table[(byte >> 4  ) + 4];
yading@10:             coeff1r = ea_adpcm_table[ byte & 0x0F];
yading@10:             coeff2r = ea_adpcm_table[(byte & 0x0F) + 4];
yading@10: 
yading@10:             byte = bytestream2_get_byteu(&gb);
yading@10:             shift_left  = 20 - (byte >> 4);
yading@10:             shift_right = 20 - (byte & 0x0F);
yading@10: 
yading@10:             for (count2 = 0; count2 < 28; count2++) {
yading@10:                 byte = bytestream2_get_byteu(&gb);
yading@10:                 next_left_sample  = sign_extend(byte >> 4, 4) << shift_left;
yading@10:                 next_right_sample = sign_extend(byte,      4) << shift_right;
yading@10: 
yading@10:                 next_left_sample = (next_left_sample +
yading@10:                     (current_left_sample * coeff1l) +
yading@10:                     (previous_left_sample * coeff2l) + 0x80) >> 8;
yading@10:                 next_right_sample = (next_right_sample +
yading@10:                     (current_right_sample * coeff1r) +
yading@10:                     (previous_right_sample * coeff2r) + 0x80) >> 8;
yading@10: 
yading@10:                 previous_left_sample = current_left_sample;
yading@10:                 current_left_sample = av_clip_int16(next_left_sample);
yading@10:                 previous_right_sample = current_right_sample;
yading@10:                 current_right_sample = av_clip_int16(next_right_sample);
yading@10:                 *samples++ = current_left_sample;
yading@10:                 *samples++ = current_right_sample;
yading@10:             }
yading@10:         }
yading@10: 
yading@10:         bytestream2_skip(&gb, 2); // Skip terminating 0x0000
yading@10: 
yading@10:         break;
yading@10:     }
yading@10:     case AV_CODEC_ID_ADPCM_EA_MAXIS_XA:
yading@10:     {
yading@10:         int coeff[2][2], shift[2];
yading@10: 
yading@10:         for(channel = 0; channel < avctx->channels; channel++) {
yading@10:             int byte = bytestream2_get_byteu(&gb);
yading@10:             for (i=0; i<2; i++)
yading@10:                 coeff[channel][i] = ea_adpcm_table[(byte >> 4) + 4*i];
yading@10:             shift[channel] = 20 - (byte & 0x0F);
yading@10:         }
yading@10:         for (count1 = 0; count1 < nb_samples / 2; count1++) {
yading@10:             int byte[2];
yading@10: 
yading@10:             byte[0] = bytestream2_get_byteu(&gb);
yading@10:             if (st) byte[1] = bytestream2_get_byteu(&gb);
yading@10:             for(i = 4; i >= 0; i-=4) { /* Pairwise samples LL RR (st) or LL LL (mono) */
yading@10:                 for(channel = 0; channel < avctx->channels; channel++) {
yading@10:                     int sample = sign_extend(byte[channel] >> i, 4) << shift[channel];
yading@10:                     sample = (sample +
yading@10:                              c->status[channel].sample1 * coeff[channel][0] +
yading@10:                              c->status[channel].sample2 * coeff[channel][1] + 0x80) >> 8;
yading@10:                     c->status[channel].sample2 = c->status[channel].sample1;
yading@10:                     c->status[channel].sample1 = av_clip_int16(sample);
yading@10:                     *samples++ = c->status[channel].sample1;
yading@10:                 }
yading@10:             }
yading@10:         }
yading@10:         bytestream2_seek(&gb, 0, SEEK_END);
yading@10:         break;
yading@10:     }
yading@10:     case AV_CODEC_ID_ADPCM_EA_R1:
yading@10:     case AV_CODEC_ID_ADPCM_EA_R2:
yading@10:     case AV_CODEC_ID_ADPCM_EA_R3: {
yading@10:         /* channel numbering
yading@10:            2chan: 0=fl, 1=fr
yading@10:            4chan: 0=fl, 1=rl, 2=fr, 3=rr
yading@10:            6chan: 0=fl, 1=c,  2=fr, 3=rl,  4=rr, 5=sub */
yading@10:         const int big_endian = avctx->codec->id == AV_CODEC_ID_ADPCM_EA_R3;
yading@10:         int previous_sample, current_sample, next_sample;
yading@10:         int coeff1, coeff2;
yading@10:         int shift;
yading@10:         unsigned int channel;
yading@10:         uint16_t *samplesC;
yading@10:         int count = 0;
yading@10:         int offsets[6];
yading@10: 
yading@10:         for (channel=0; channel<avctx->channels; channel++)
yading@10:             offsets[channel] = (big_endian ? bytestream2_get_be32(&gb) :
yading@10:                                              bytestream2_get_le32(&gb)) +
yading@10:                                (avctx->channels + 1) * 4;
yading@10: 
yading@10:         for (channel=0; channel<avctx->channels; channel++) {
yading@10:             bytestream2_seek(&gb, offsets[channel], SEEK_SET);
yading@10:             samplesC = samples_p[channel];
yading@10: 
yading@10:             if (avctx->codec->id == AV_CODEC_ID_ADPCM_EA_R1) {
yading@10:                 current_sample  = sign_extend(bytestream2_get_le16(&gb), 16);
yading@10:                 previous_sample = sign_extend(bytestream2_get_le16(&gb), 16);
yading@10:             } else {
yading@10:                 current_sample  = c->status[channel].predictor;
yading@10:                 previous_sample = c->status[channel].prev_sample;
yading@10:             }
yading@10: 
yading@10:             for (count1 = 0; count1 < nb_samples / 28; count1++) {
yading@10:                 int byte = bytestream2_get_byte(&gb);
yading@10:                 if (byte == 0xEE) {  /* only seen in R2 and R3 */
yading@10:                     current_sample  = sign_extend(bytestream2_get_be16(&gb), 16);
yading@10:                     previous_sample = sign_extend(bytestream2_get_be16(&gb), 16);
yading@10: 
yading@10:                     for (count2=0; count2<28; count2++)
yading@10:                         *samplesC++ = sign_extend(bytestream2_get_be16(&gb), 16);
yading@10:                 } else {
yading@10:                     coeff1 = ea_adpcm_table[ byte >> 4     ];
yading@10:                     coeff2 = ea_adpcm_table[(byte >> 4) + 4];
yading@10:                     shift = 20 - (byte & 0x0F);
yading@10: 
yading@10:                     for (count2=0; count2<28; count2++) {
yading@10:                         if (count2 & 1)
yading@10:                             next_sample = sign_extend(byte,    4) << shift;
yading@10:                         else {
yading@10:                             byte = bytestream2_get_byte(&gb);
yading@10:                             next_sample = sign_extend(byte >> 4, 4) << shift;
yading@10:                         }
yading@10: 
yading@10:                         next_sample += (current_sample  * coeff1) +
yading@10:                                        (previous_sample * coeff2);
yading@10:                         next_sample = av_clip_int16(next_sample >> 8);
yading@10: 
yading@10:                         previous_sample = current_sample;
yading@10:                         current_sample  = next_sample;
yading@10:                         *samplesC++ = current_sample;
yading@10:                     }
yading@10:                 }
yading@10:             }
yading@10:             if (!count) {
yading@10:                 count = count1;
yading@10:             } else if (count != count1) {
yading@10:                 av_log(avctx, AV_LOG_WARNING, "per-channel sample count mismatch\n");
yading@10:                 count = FFMAX(count, count1);
yading@10:             }
yading@10: 
yading@10:             if (avctx->codec->id != AV_CODEC_ID_ADPCM_EA_R1) {
yading@10:                 c->status[channel].predictor   = current_sample;
yading@10:                 c->status[channel].prev_sample = previous_sample;
yading@10:             }
yading@10:         }
yading@10: 
yading@10:         frame->nb_samples = count * 28;
yading@10:         bytestream2_seek(&gb, 0, SEEK_END);
yading@10:         break;
yading@10:     }
yading@10:     case AV_CODEC_ID_ADPCM_EA_XAS:
yading@10:         for (channel=0; channel<avctx->channels; channel++) {
yading@10:             int coeff[2][4], shift[4];
yading@10:             int16_t *s = samples_p[channel];
yading@10:             for (n = 0; n < 4; n++, s += 32) {
yading@10:                 int val = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:                 for (i=0; i<2; i++)
yading@10:                     coeff[i][n] = ea_adpcm_table[(val&0x0F)+4*i];
yading@10:                 s[0] = val & ~0x0F;
yading@10: 
yading@10:                 val = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:                 shift[n] = 20 - (val & 0x0F);
yading@10:                 s[1] = val & ~0x0F;
yading@10:             }
yading@10: 
yading@10:             for (m=2; m<32; m+=2) {
yading@10:                 s = &samples_p[channel][m];
yading@10:                 for (n = 0; n < 4; n++, s += 32) {
yading@10:                     int level, pred;
yading@10:                     int byte = bytestream2_get_byteu(&gb);
yading@10: 
yading@10:                     level = sign_extend(byte >> 4, 4) << shift[n];
yading@10:                     pred  = s[-1] * coeff[0][n] + s[-2] * coeff[1][n];
yading@10:                     s[0]  = av_clip_int16((level + pred + 0x80) >> 8);
yading@10: 
yading@10:                     level = sign_extend(byte, 4) << shift[n];
yading@10:                     pred  = s[0] * coeff[0][n] + s[-1] * coeff[1][n];
yading@10:                     s[1]  = av_clip_int16((level + pred + 0x80) >> 8);
yading@10:                 }
yading@10:             }
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_AMV:
yading@10:         c->status[0].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
yading@10:         c->status[0].step_index = bytestream2_get_le16u(&gb);
yading@10:         bytestream2_skipu(&gb, 4);
yading@10:         if (c->status[0].step_index > 88u) {
yading@10:             av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i\n",
yading@10:                    c->status[0].step_index);
yading@10:             return AVERROR_INVALIDDATA;
yading@10:         }
yading@10: 
yading@10:         for (n = nb_samples >> (1 - st); n > 0; n--) {
yading@10:             int v = bytestream2_get_byteu(&gb);
yading@10: 
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[0], v >> 4, 3);
yading@10:             *samples++ = adpcm_ima_expand_nibble(&c->status[0], v & 0xf, 3);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
yading@10:         for (i = 0; i < avctx->channels; i++) {
yading@10:             c->status[i].predictor = sign_extend(bytestream2_get_be16u(&gb), 16);
yading@10:             c->status[i].step_index = bytestream2_get_byteu(&gb);
yading@10:             bytestream2_skipu(&gb, 1);
yading@10:             if (c->status[i].step_index > 88u) {
yading@10:                 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i\n",
yading@10:                        c->status[i].step_index);
yading@10:                 return AVERROR_INVALIDDATA;
yading@10:             }
yading@10:         }
yading@10: 
yading@10:         for (n = nb_samples >> (1 - st); n > 0; n--) {
yading@10:             int v = bytestream2_get_byteu(&gb);
yading@10: 
yading@10:             *samples++ = adpcm_ima_qt_expand_nibble(&c->status[0 ], v >> 4, 3);
yading@10:             *samples++ = adpcm_ima_qt_expand_nibble(&c->status[st], v & 0xf, 3);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_CT:
yading@10:         for (n = nb_samples >> (1 - st); n > 0; n--) {
yading@10:             int v = bytestream2_get_byteu(&gb);
yading@10:             *samples++ = adpcm_ct_expand_nibble(&c->status[0 ], v >> 4  );
yading@10:             *samples++ = adpcm_ct_expand_nibble(&c->status[st], v & 0x0F);
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_SBPRO_4:
yading@10:     case AV_CODEC_ID_ADPCM_SBPRO_3:
yading@10:     case AV_CODEC_ID_ADPCM_SBPRO_2:
yading@10:         if (!c->status[0].step_index) {
yading@10:             /* the first byte is a raw sample */
yading@10:             *samples++ = 128 * (bytestream2_get_byteu(&gb) - 0x80);
yading@10:             if (st)
yading@10:                 *samples++ = 128 * (bytestream2_get_byteu(&gb) - 0x80);
yading@10:             c->status[0].step_index = 1;
yading@10:             nb_samples--;
yading@10:         }
yading@10:         if (avctx->codec->id == AV_CODEC_ID_ADPCM_SBPRO_4) {
yading@10:             for (n = nb_samples >> (1 - st); n > 0; n--) {
yading@10:                 int byte = bytestream2_get_byteu(&gb);
yading@10:                 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
yading@10:                                                        byte >> 4,   4, 0);
yading@10:                 *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],
yading@10:                                                        byte & 0x0F, 4, 0);
yading@10:             }
yading@10:         } else if (avctx->codec->id == AV_CODEC_ID_ADPCM_SBPRO_3) {
yading@10:             for (n = nb_samples / 3; n > 0; n--) {
yading@10:                 int byte = bytestream2_get_byteu(&gb);
yading@10:                 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
yading@10:                                                         byte >> 5        , 3, 0);
yading@10:                 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
yading@10:                                                        (byte >> 2) & 0x07, 3, 0);
yading@10:                 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
yading@10:                                                         byte & 0x03,       2, 0);
yading@10:             }
yading@10:         } else {
yading@10:             for (n = nb_samples >> (2 - st); n > 0; n--) {
yading@10:                 int byte = bytestream2_get_byteu(&gb);
yading@10:                 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
yading@10:                                                         byte >> 6        , 2, 2);
yading@10:                 *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],
yading@10:                                                        (byte >> 4) & 0x03, 2, 2);
yading@10:                 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
yading@10:                                                        (byte >> 2) & 0x03, 2, 2);
yading@10:                 *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],
yading@10:                                                         byte & 0x03,       2, 2);
yading@10:             }
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_SWF:
yading@10:         adpcm_swf_decode(avctx, buf, buf_size, samples);
yading@10:         bytestream2_seek(&gb, 0, SEEK_END);
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_YAMAHA:
yading@10:         for (n = nb_samples >> (1 - st); n > 0; n--) {
yading@10:             int v = bytestream2_get_byteu(&gb);
yading@10:             *samples++ = adpcm_yamaha_expand_nibble(&c->status[0 ], v & 0x0F);
yading@10:             *samples++ = adpcm_yamaha_expand_nibble(&c->status[st], v >> 4  );
yading@10:         }
yading@10:         break;
yading@10:     case AV_CODEC_ID_ADPCM_AFC:
yading@10:     {
yading@10:         int samples_per_block;
yading@10:         int blocks;
yading@10: 
yading@10:         if (avctx->extradata && avctx->extradata_size == 1 && avctx->extradata[0]) {
yading@10:             samples_per_block = avctx->extradata[0] / 16;
yading@10:             blocks = nb_samples / avctx->extradata[0];
yading@10:         } else {
yading@10:             samples_per_block = nb_samples / 16;
yading@10:             blocks = 1;
yading@10:         }
yading@10: 
yading@10:         for (m = 0; m < blocks; m++) {
yading@10:         for (channel = 0; channel < avctx->channels; channel++) {
yading@10:             int prev1 = c->status[channel].sample1;
yading@10:             int prev2 = c->status[channel].sample2;
yading@10: 
yading@10:             samples = samples_p[channel] + m * 16;
yading@10:             /* Read in every sample for this channel.  */
yading@10:             for (i = 0; i < samples_per_block; i++) {
yading@10:                 int byte = bytestream2_get_byteu(&gb);
yading@10:                 int scale = 1 << (byte >> 4);
yading@10:                 int index = byte & 0xf;
yading@10:                 int factor1 = ff_adpcm_afc_coeffs[0][index];
yading@10:                 int factor2 = ff_adpcm_afc_coeffs[1][index];
yading@10: 
yading@10:                 /* Decode 16 samples.  */
yading@10:                 for (n = 0; n < 16; n++) {
yading@10:                     int32_t sampledat;
yading@10: 
yading@10:                     if (n & 1) {
yading@10:                         sampledat = sign_extend(byte, 4);
yading@10:                     } else {
yading@10:                         byte = bytestream2_get_byteu(&gb);
yading@10:                         sampledat = sign_extend(byte >> 4, 4);
yading@10:                     }
yading@10: 
yading@10:                     sampledat = ((prev1 * factor1 + prev2 * factor2) +
yading@10:                                  ((sampledat * scale) << 11)) >> 11;
yading@10:                     *samples = av_clip_int16(sampledat);
yading@10:                     prev2 = prev1;
yading@10:                     prev1 = *samples++;
yading@10:                 }
yading@10:             }
yading@10: 
yading@10:             c->status[channel].sample1 = prev1;
yading@10:             c->status[channel].sample2 = prev2;
yading@10:         }
yading@10:         }
yading@10:         bytestream2_seek(&gb, 0, SEEK_END);
yading@10:         break;
yading@10:     }
yading@10:     case AV_CODEC_ID_ADPCM_THP:
yading@10:     {
yading@10:         int table[6][16];
yading@10:         int ch;
yading@10: 
yading@10:         for (i = 0; i < avctx->channels; i++)
yading@10:             for (n = 0; n < 16; n++)
yading@10:                 table[i][n] = sign_extend(bytestream2_get_be16u(&gb), 16);
yading@10: 
yading@10:         /* Initialize the previous sample.  */
yading@10:         for (i = 0; i < avctx->channels; i++) {
yading@10:             c->status[i].sample1 = sign_extend(bytestream2_get_be16u(&gb), 16);
yading@10:             c->status[i].sample2 = sign_extend(bytestream2_get_be16u(&gb), 16);
yading@10:         }
yading@10: 
yading@10:         for (ch = 0; ch < avctx->channels; ch++) {
yading@10:             samples = samples_p[ch];
yading@10: 
yading@10:             /* Read in every sample for this channel.  */
yading@10:             for (i = 0; i < nb_samples / 14; i++) {
yading@10:                 int byte = bytestream2_get_byteu(&gb);
yading@10:                 int index = (byte >> 4) & 7;
yading@10:                 unsigned int exp = byte & 0x0F;
yading@10:                 int factor1 = table[ch][index * 2];
yading@10:                 int factor2 = table[ch][index * 2 + 1];
yading@10: 
yading@10:                 /* Decode 14 samples.  */
yading@10:                 for (n = 0; n < 14; n++) {
yading@10:                     int32_t sampledat;
yading@10: 
yading@10:                     if (n & 1) {
yading@10:                         sampledat = sign_extend(byte, 4);
yading@10:                     } else {
yading@10:                         byte = bytestream2_get_byteu(&gb);
yading@10:                         sampledat = sign_extend(byte >> 4, 4);
yading@10:                     }
yading@10: 
yading@10:                     sampledat = ((c->status[ch].sample1 * factor1
yading@10:                                 + c->status[ch].sample2 * factor2) >> 11) + (sampledat << exp);
yading@10:                     *samples = av_clip_int16(sampledat);
yading@10:                     c->status[ch].sample2 = c->status[ch].sample1;
yading@10:                     c->status[ch].sample1 = *samples++;
yading@10:                 }
yading@10:             }
yading@10:         }
yading@10:         break;
yading@10:     }
yading@10: 
yading@10:     default:
yading@10:         return -1;
yading@10:     }
yading@10: 
yading@10:     if (avpkt->size && bytestream2_tell(&gb) == 0) {
yading@10:         av_log(avctx, AV_LOG_ERROR, "Nothing consumed\n");
yading@10:         return AVERROR_INVALIDDATA;
yading@10:     }
yading@10: 
yading@10:     *got_frame_ptr = 1;
yading@10: 
yading@10:     return bytestream2_tell(&gb);
yading@10: }
yading@10: 
yading@10: 
yading@10: static const enum AVSampleFormat sample_fmts_s16[]  = { AV_SAMPLE_FMT_S16,
yading@10:                                                         AV_SAMPLE_FMT_NONE };
yading@10: static const enum AVSampleFormat sample_fmts_s16p[] = { AV_SAMPLE_FMT_S16,
yading@10:                                                         AV_SAMPLE_FMT_NONE };
yading@10: static const enum AVSampleFormat sample_fmts_both[] = { AV_SAMPLE_FMT_S16,
yading@10:                                                         AV_SAMPLE_FMT_S16P,
yading@10:                                                         AV_SAMPLE_FMT_NONE };
yading@10: 
yading@10: #define ADPCM_DECODER(id_, sample_fmts_, name_, long_name_) \
yading@10: AVCodec ff_ ## name_ ## _decoder = {                        \
yading@10:     .name           = #name_,                               \
yading@10:     .type           = AVMEDIA_TYPE_AUDIO,                   \
yading@10:     .id             = id_,                                  \
yading@10:     .priv_data_size = sizeof(ADPCMDecodeContext),           \
yading@10:     .init           = adpcm_decode_init,                    \
yading@10:     .decode         = adpcm_decode_frame,                   \
yading@10:     .capabilities   = CODEC_CAP_DR1,                        \
yading@10:     .long_name      = NULL_IF_CONFIG_SMALL(long_name_),     \
yading@10:     .sample_fmts    = sample_fmts_,                         \
yading@10: }
yading@10: 
yading@10: /* Note: Do not forget to add new entries to the Makefile as well. */
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_4XM,         sample_fmts_s16p, adpcm_4xm,         "ADPCM 4X Movie");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_AFC,         sample_fmts_s16p, adpcm_afc,         "ADPCM Nintendo Gamecube AFC");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_CT,          sample_fmts_s16,  adpcm_ct,          "ADPCM Creative Technology");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA,          sample_fmts_s16,  adpcm_ea,          "ADPCM Electronic Arts");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_MAXIS_XA, sample_fmts_s16,  adpcm_ea_maxis_xa, "ADPCM Electronic Arts Maxis CDROM XA");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R1,       sample_fmts_s16p, adpcm_ea_r1,       "ADPCM Electronic Arts R1");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R2,       sample_fmts_s16p, adpcm_ea_r2,       "ADPCM Electronic Arts R2");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R3,       sample_fmts_s16p, adpcm_ea_r3,       "ADPCM Electronic Arts R3");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_XAS,      sample_fmts_s16p, adpcm_ea_xas,      "ADPCM Electronic Arts XAS");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_AMV,     sample_fmts_s16,  adpcm_ima_amv,     "ADPCM IMA AMV");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_APC,     sample_fmts_s16,  adpcm_ima_apc,     "ADPCM IMA CRYO APC");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DK3,     sample_fmts_s16,  adpcm_ima_dk3,     "ADPCM IMA Duck DK3");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DK4,     sample_fmts_s16,  adpcm_ima_dk4,     "ADPCM IMA Duck DK4");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_EA_EACS, sample_fmts_s16,  adpcm_ima_ea_eacs, "ADPCM IMA Electronic Arts EACS");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_EA_SEAD, sample_fmts_s16,  adpcm_ima_ea_sead, "ADPCM IMA Electronic Arts SEAD");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_ISS,     sample_fmts_s16,  adpcm_ima_iss,     "ADPCM IMA Funcom ISS");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_OKI,     sample_fmts_s16,  adpcm_ima_oki,     "ADPCM IMA Dialogic OKI");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_QT,      sample_fmts_s16p, adpcm_ima_qt,      "ADPCM IMA QuickTime");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_SMJPEG,  sample_fmts_s16,  adpcm_ima_smjpeg,  "ADPCM IMA Loki SDL MJPEG");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WAV,     sample_fmts_s16p, adpcm_ima_wav,     "ADPCM IMA WAV");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WS,      sample_fmts_both, adpcm_ima_ws,      "ADPCM IMA Westwood");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_MS,          sample_fmts_s16,  adpcm_ms,          "ADPCM Microsoft");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_2,     sample_fmts_s16,  adpcm_sbpro_2,     "ADPCM Sound Blaster Pro 2-bit");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_3,     sample_fmts_s16,  adpcm_sbpro_3,     "ADPCM Sound Blaster Pro 2.6-bit");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_4,     sample_fmts_s16,  adpcm_sbpro_4,     "ADPCM Sound Blaster Pro 4-bit");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_SWF,         sample_fmts_s16,  adpcm_swf,         "ADPCM Shockwave Flash");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_THP,         sample_fmts_s16p, adpcm_thp,         "ADPCM Nintendo Gamecube THP");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_XA,          sample_fmts_s16p, adpcm_xa,          "ADPCM CDROM XA");
yading@10: ADPCM_DECODER(AV_CODEC_ID_ADPCM_YAMAHA,      sample_fmts_s16,  adpcm_yamaha,      "ADPCM Yamaha");