2 * Copyright (c) 2001-2003 The ffmpeg Project
4 * first version by Francois Revol (revol@free.fr)
5 * fringe ADPCM codecs (e.g., DK3, DK4, Westwood)
6 * by Mike Melanson (melanson@pcisys.net)
7 * CD-ROM XA ADPCM codec by BERO
8 * EA ADPCM decoder by Robin Kay (komadori@myrealbox.com)
9 * EA ADPCM R1/R2/R3 decoder by Peter Ross (pross@xvid.org)
10 * EA IMA EACS decoder by Peter Ross (pross@xvid.org)
11 * EA IMA SEAD decoder by Peter Ross (pross@xvid.org)
12 * EA ADPCM XAS decoder by Peter Ross (pross@xvid.org)
13 * MAXIS EA ADPCM decoder by Robert Marston (rmarston@gmail.com)
14 * THP ADPCM decoder by Marco Gerards (mgerards@xs4all.nl)
16 * This file is part of Libav.
18 * Libav is free software; you can redistribute it and/or
19 * modify it under the terms of the GNU Lesser General Public
20 * License as published by the Free Software Foundation; either
21 * version 2.1 of the License, or (at your option) any later version.
23 * Libav is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * Lesser General Public License for more details.
28 * You should have received a copy of the GNU Lesser General Public
29 * License along with Libav; if not, write to the Free Software
30 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
35 #include "bytestream.h"
37 #include "adpcm_data.h"
43 * Features and limitations:
45 * Reference documents:
46 * http://wiki.multimedia.cx/index.php?title=Category:ADPCM_Audio_Codecs
47 * http://www.pcisys.net/~melanson/codecs/simpleaudio.html [dead]
48 * http://www.geocities.com/SiliconValley/8682/aud3.txt [dead]
49 * http://openquicktime.sourceforge.net/
50 * XAnim sources (xa_codec.c) http://xanim.polter.net/
51 * http://www.cs.ucla.edu/~leec/mediabench/applications.html [dead]
52 * SoX source code http://sox.sourceforge.net/
55 * http://ku-www.ss.titech.ac.jp/~yatsushi/xaadpcm.html [dead]
56 * vagpack & depack http://homepages.compuserve.de/bITmASTER32/psx-index.html [dead]
57 * readstr http://www.geocities.co.jp/Playtown/2004/
60 /* These are for CD-ROM XA ADPCM */
61 static const int xa_adpcm_table[5][2] = {
69 static const int ea_adpcm_table[] = {
77 // padded to zero where table size is less then 16
78 static const int swf_index_tables[4][16] = {
80 /*3*/ { -1, -1, 2, 4 },
81 /*4*/ { -1, -1, -1, -1, 2, 4, 6, 8 },
82 /*5*/ { -1, -1, -1, -1, -1, -1, -1, -1, 1, 2, 4, 6, 8, 10, 13, 16 }
87 typedef struct ADPCMDecodeContext {
88 ADPCMChannelStatus status[6];
89 int vqa_version; /**< VQA version. Used for ADPCM_IMA_WS */
92 static av_cold int adpcm_decode_init(AVCodecContext * avctx)
94 ADPCMDecodeContext *c = avctx->priv_data;
95 unsigned int min_channels = 1;
96 unsigned int max_channels = 2;
98 switch(avctx->codec->id) {
99 case AV_CODEC_ID_ADPCM_EA:
102 case AV_CODEC_ID_ADPCM_EA_R1:
103 case AV_CODEC_ID_ADPCM_EA_R2:
104 case AV_CODEC_ID_ADPCM_EA_R3:
105 case AV_CODEC_ID_ADPCM_EA_XAS:
109 if (avctx->channels < min_channels || avctx->channels > max_channels) {
110 av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
111 return AVERROR(EINVAL);
114 switch(avctx->codec->id) {
115 case AV_CODEC_ID_ADPCM_CT:
116 c->status[0].step = c->status[1].step = 511;
118 case AV_CODEC_ID_ADPCM_IMA_WAV:
119 if (avctx->bits_per_coded_sample != 4) {
120 av_log(avctx, AV_LOG_ERROR, "Only 4-bit ADPCM IMA WAV files are supported\n");
124 case AV_CODEC_ID_ADPCM_IMA_APC:
125 if (avctx->extradata && avctx->extradata_size >= 8) {
126 c->status[0].predictor = AV_RL32(avctx->extradata);
127 c->status[1].predictor = AV_RL32(avctx->extradata + 4);
130 case AV_CODEC_ID_ADPCM_IMA_WS:
131 if (avctx->extradata && avctx->extradata_size >= 2)
132 c->vqa_version = AV_RL16(avctx->extradata);
138 switch(avctx->codec->id) {
139 case AV_CODEC_ID_ADPCM_IMA_QT:
140 case AV_CODEC_ID_ADPCM_IMA_WAV:
141 case AV_CODEC_ID_ADPCM_4XM:
142 case AV_CODEC_ID_ADPCM_XA:
143 case AV_CODEC_ID_ADPCM_EA_R1:
144 case AV_CODEC_ID_ADPCM_EA_R2:
145 case AV_CODEC_ID_ADPCM_EA_R3:
146 case AV_CODEC_ID_ADPCM_EA_XAS:
147 case AV_CODEC_ID_ADPCM_THP:
148 avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
150 case AV_CODEC_ID_ADPCM_IMA_WS:
151 avctx->sample_fmt = c->vqa_version == 3 ? AV_SAMPLE_FMT_S16P :
155 avctx->sample_fmt = AV_SAMPLE_FMT_S16;
161 static inline short adpcm_ima_expand_nibble(ADPCMChannelStatus *c, char nibble, int shift)
165 int sign, delta, diff, step;
167 step = ff_adpcm_step_table[c->step_index];
168 step_index = c->step_index + ff_adpcm_index_table[(unsigned)nibble];
169 step_index = av_clip(step_index, 0, 88);
173 /* perform direct multiplication instead of series of jumps proposed by
174 * the reference ADPCM implementation since modern CPUs can do the mults
176 diff = ((2 * delta + 1) * step) >> shift;
177 predictor = c->predictor;
178 if (sign) predictor -= diff;
179 else predictor += diff;
181 c->predictor = av_clip_int16(predictor);
182 c->step_index = step_index;
184 return (short)c->predictor;
187 static inline int adpcm_ima_qt_expand_nibble(ADPCMChannelStatus *c, int nibble, int shift)
193 step = ff_adpcm_step_table[c->step_index];
194 step_index = c->step_index + ff_adpcm_index_table[nibble];
195 step_index = av_clip(step_index, 0, 88);
198 if (nibble & 4) diff += step;
199 if (nibble & 2) diff += step >> 1;
200 if (nibble & 1) diff += step >> 2;
203 predictor = c->predictor - diff;
205 predictor = c->predictor + diff;
207 c->predictor = av_clip_int16(predictor);
208 c->step_index = step_index;
213 static inline short adpcm_ms_expand_nibble(ADPCMChannelStatus *c, int nibble)
217 predictor = (((c->sample1) * (c->coeff1)) + ((c->sample2) * (c->coeff2))) / 64;
218 predictor += ((nibble & 0x08)?(nibble - 0x10):(nibble)) * c->idelta;
220 c->sample2 = c->sample1;
221 c->sample1 = av_clip_int16(predictor);
222 c->idelta = (ff_adpcm_AdaptationTable[(int)nibble] * c->idelta) >> 8;
223 if (c->idelta < 16) c->idelta = 16;
228 static inline short adpcm_ct_expand_nibble(ADPCMChannelStatus *c, char nibble)
230 int sign, delta, diff;
235 /* perform direct multiplication instead of series of jumps proposed by
236 * the reference ADPCM implementation since modern CPUs can do the mults
238 diff = ((2 * delta + 1) * c->step) >> 3;
239 /* predictor update is not so trivial: predictor is multiplied on 254/256 before updating */
240 c->predictor = ((c->predictor * 254) >> 8) + (sign ? -diff : diff);
241 c->predictor = av_clip_int16(c->predictor);
242 /* calculate new step and clamp it to range 511..32767 */
243 new_step = (ff_adpcm_AdaptationTable[nibble & 7] * c->step) >> 8;
244 c->step = av_clip(new_step, 511, 32767);
246 return (short)c->predictor;
249 static inline short adpcm_sbpro_expand_nibble(ADPCMChannelStatus *c, char nibble, int size, int shift)
251 int sign, delta, diff;
253 sign = nibble & (1<<(size-1));
254 delta = nibble & ((1<<(size-1))-1);
255 diff = delta << (7 + c->step + shift);
258 c->predictor = av_clip(c->predictor + (sign ? -diff : diff), -16384,16256);
260 /* calculate new step */
261 if (delta >= (2*size - 3) && c->step < 3)
263 else if (delta == 0 && c->step > 0)
266 return (short) c->predictor;
269 static inline short adpcm_yamaha_expand_nibble(ADPCMChannelStatus *c, unsigned char nibble)
276 c->predictor += (c->step * ff_adpcm_yamaha_difflookup[nibble]) / 8;
277 c->predictor = av_clip_int16(c->predictor);
278 c->step = (c->step * ff_adpcm_yamaha_indexscale[nibble]) >> 8;
279 c->step = av_clip(c->step, 127, 24567);
283 static int xa_decode(AVCodecContext *avctx, int16_t *out0, int16_t *out1,
284 const uint8_t *in, ADPCMChannelStatus *left,
285 ADPCMChannelStatus *right, int channels, int sample_offset)
288 int shift,filter,f0,f1;
292 out0 += sample_offset;
296 out1 += sample_offset;
299 shift = 12 - (in[4+i*2] & 15);
300 filter = in[4+i*2] >> 4;
302 av_log(avctx, AV_LOG_ERROR,
303 "Invalid XA-ADPCM filter %d (max. allowed is 4)\n",
305 return AVERROR_INVALIDDATA;
307 f0 = xa_adpcm_table[filter][0];
308 f1 = xa_adpcm_table[filter][1];
316 t = sign_extend(d, 4);
317 s = ( t<<shift ) + ((s_1*f0 + s_2*f1+32)>>6);
319 s_1 = av_clip_int16(s);
326 s_1 = right->sample1;
327 s_2 = right->sample2;
330 shift = 12 - (in[5+i*2] & 15);
331 filter = in[5+i*2] >> 4;
333 av_log(avctx, AV_LOG_ERROR,
334 "Invalid XA-ADPCM filter %d (max. allowed is 4)\n",
336 return AVERROR_INVALIDDATA;
338 f0 = xa_adpcm_table[filter][0];
339 f1 = xa_adpcm_table[filter][1];
344 t = sign_extend(d >> 4, 4);
345 s = ( t<<shift ) + ((s_1*f0 + s_2*f1+32)>>6);
347 s_1 = av_clip_int16(s);
352 right->sample1 = s_1;
353 right->sample2 = s_2;
359 out0 += 28 * (3 - channels);
360 out1 += 28 * (3 - channels);
366 static void adpcm_swf_decode(AVCodecContext *avctx, const uint8_t *buf, int buf_size, int16_t *samples)
368 ADPCMDecodeContext *c = avctx->priv_data;
371 int k0, signmask, nb_bits, count;
372 int size = buf_size*8;
375 init_get_bits(&gb, buf, size);
377 //read bits & initial values
378 nb_bits = get_bits(&gb, 2)+2;
379 table = swf_index_tables[nb_bits-2];
380 k0 = 1 << (nb_bits-2);
381 signmask = 1 << (nb_bits-1);
383 while (get_bits_count(&gb) <= size - 22*avctx->channels) {
384 for (i = 0; i < avctx->channels; i++) {
385 *samples++ = c->status[i].predictor = get_sbits(&gb, 16);
386 c->status[i].step_index = get_bits(&gb, 6);
389 for (count = 0; get_bits_count(&gb) <= size - nb_bits*avctx->channels && count < 4095; count++) {
392 for (i = 0; i < avctx->channels; i++) {
393 // similar to IMA adpcm
394 int delta = get_bits(&gb, nb_bits);
395 int step = ff_adpcm_step_table[c->status[i].step_index];
396 long vpdiff = 0; // vpdiff = (delta+0.5)*step/4
407 if (delta & signmask)
408 c->status[i].predictor -= vpdiff;
410 c->status[i].predictor += vpdiff;
412 c->status[i].step_index += table[delta & (~signmask)];
414 c->status[i].step_index = av_clip(c->status[i].step_index, 0, 88);
415 c->status[i].predictor = av_clip_int16(c->status[i].predictor);
417 *samples++ = c->status[i].predictor;
424 * Get the number of samples that will be decoded from the packet.
425 * In one case, this is actually the maximum number of samples possible to
426 * decode with the given buf_size.
428 * @param[out] coded_samples set to the number of samples as coded in the
429 * packet, or 0 if the codec does not encode the
430 * number of samples in each frame.
432 static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb,
433 int buf_size, int *coded_samples)
435 ADPCMDecodeContext *s = avctx->priv_data;
437 int ch = avctx->channels;
438 int has_coded_samples = 0;
443 switch (avctx->codec->id) {
444 /* constant, only check buf_size */
445 case AV_CODEC_ID_ADPCM_EA_XAS:
446 if (buf_size < 76 * ch)
450 case AV_CODEC_ID_ADPCM_IMA_QT:
451 if (buf_size < 34 * ch)
455 /* simple 4-bit adpcm */
456 case AV_CODEC_ID_ADPCM_CT:
457 case AV_CODEC_ID_ADPCM_IMA_APC:
458 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
459 case AV_CODEC_ID_ADPCM_IMA_WS:
460 case AV_CODEC_ID_ADPCM_YAMAHA:
461 nb_samples = buf_size * 2 / ch;
467 /* simple 4-bit adpcm, with header */
469 switch (avctx->codec->id) {
470 case AV_CODEC_ID_ADPCM_4XM:
471 case AV_CODEC_ID_ADPCM_IMA_ISS: header_size = 4 * ch; break;
472 case AV_CODEC_ID_ADPCM_IMA_AMV: header_size = 8; break;
473 case AV_CODEC_ID_ADPCM_IMA_SMJPEG: header_size = 4; break;
476 return (buf_size - header_size) * 2 / ch;
478 /* more complex formats */
479 switch (avctx->codec->id) {
480 case AV_CODEC_ID_ADPCM_EA:
481 has_coded_samples = 1;
482 *coded_samples = bytestream2_get_le32(gb);
483 *coded_samples -= *coded_samples % 28;
484 nb_samples = (buf_size - 12) / 30 * 28;
486 case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
487 has_coded_samples = 1;
488 *coded_samples = bytestream2_get_le32(gb);
489 nb_samples = (buf_size - (4 + 8 * ch)) * 2 / ch;
491 case AV_CODEC_ID_ADPCM_EA_MAXIS_XA:
492 nb_samples = (buf_size - ch) / ch * 2;
494 case AV_CODEC_ID_ADPCM_EA_R1:
495 case AV_CODEC_ID_ADPCM_EA_R2:
496 case AV_CODEC_ID_ADPCM_EA_R3:
497 /* maximum number of samples */
498 /* has internal offsets and a per-frame switch to signal raw 16-bit */
499 has_coded_samples = 1;
500 switch (avctx->codec->id) {
501 case AV_CODEC_ID_ADPCM_EA_R1:
502 header_size = 4 + 9 * ch;
503 *coded_samples = bytestream2_get_le32(gb);
505 case AV_CODEC_ID_ADPCM_EA_R2:
506 header_size = 4 + 5 * ch;
507 *coded_samples = bytestream2_get_le32(gb);
509 case AV_CODEC_ID_ADPCM_EA_R3:
510 header_size = 4 + 5 * ch;
511 *coded_samples = bytestream2_get_be32(gb);
514 *coded_samples -= *coded_samples % 28;
515 nb_samples = (buf_size - header_size) * 2 / ch;
516 nb_samples -= nb_samples % 28;
518 case AV_CODEC_ID_ADPCM_IMA_DK3:
519 if (avctx->block_align > 0)
520 buf_size = FFMIN(buf_size, avctx->block_align);
521 nb_samples = ((buf_size - 16) * 2 / 3 * 4) / ch;
523 case AV_CODEC_ID_ADPCM_IMA_DK4:
524 if (avctx->block_align > 0)
525 buf_size = FFMIN(buf_size, avctx->block_align);
526 nb_samples = 1 + (buf_size - 4 * ch) * 2 / ch;
528 case AV_CODEC_ID_ADPCM_IMA_WAV:
529 if (avctx->block_align > 0)
530 buf_size = FFMIN(buf_size, avctx->block_align);
531 nb_samples = 1 + (buf_size - 4 * ch) / (4 * ch) * 8;
533 case AV_CODEC_ID_ADPCM_MS:
534 if (avctx->block_align > 0)
535 buf_size = FFMIN(buf_size, avctx->block_align);
536 nb_samples = 2 + (buf_size - 7 * ch) * 2 / ch;
538 case AV_CODEC_ID_ADPCM_SBPRO_2:
539 case AV_CODEC_ID_ADPCM_SBPRO_3:
540 case AV_CODEC_ID_ADPCM_SBPRO_4:
542 int samples_per_byte;
543 switch (avctx->codec->id) {
544 case AV_CODEC_ID_ADPCM_SBPRO_2: samples_per_byte = 4; break;
545 case AV_CODEC_ID_ADPCM_SBPRO_3: samples_per_byte = 3; break;
546 case AV_CODEC_ID_ADPCM_SBPRO_4: samples_per_byte = 2; break;
548 if (!s->status[0].step_index) {
552 nb_samples += buf_size * samples_per_byte / ch;
555 case AV_CODEC_ID_ADPCM_SWF:
557 int buf_bits = buf_size * 8 - 2;
558 int nbits = (bytestream2_get_byte(gb) >> 6) + 2;
559 int block_hdr_size = 22 * ch;
560 int block_size = block_hdr_size + nbits * ch * 4095;
561 int nblocks = buf_bits / block_size;
562 int bits_left = buf_bits - nblocks * block_size;
563 nb_samples = nblocks * 4096;
564 if (bits_left >= block_hdr_size)
565 nb_samples += 1 + (bits_left - block_hdr_size) / (nbits * ch);
568 case AV_CODEC_ID_ADPCM_THP:
569 has_coded_samples = 1;
570 bytestream2_skip(gb, 4); // channel size
571 *coded_samples = bytestream2_get_be32(gb);
572 *coded_samples -= *coded_samples % 14;
573 nb_samples = (buf_size - 80) / (8 * ch) * 14;
575 case AV_CODEC_ID_ADPCM_XA:
576 nb_samples = (buf_size / 128) * 224 / ch;
580 /* validate coded sample count */
581 if (has_coded_samples && (*coded_samples <= 0 || *coded_samples > nb_samples))
582 return AVERROR_INVALIDDATA;
587 static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
588 int *got_frame_ptr, AVPacket *avpkt)
590 AVFrame *frame = data;
591 const uint8_t *buf = avpkt->data;
592 int buf_size = avpkt->size;
593 ADPCMDecodeContext *c = avctx->priv_data;
594 ADPCMChannelStatus *cs;
595 int n, m, channel, i;
600 int nb_samples, coded_samples, ret;
603 bytestream2_init(&gb, buf, buf_size);
604 nb_samples = get_nb_samples(avctx, &gb, buf_size, &coded_samples);
605 if (nb_samples <= 0) {
606 av_log(avctx, AV_LOG_ERROR, "invalid number of samples in packet\n");
607 return AVERROR_INVALIDDATA;
610 /* get output buffer */
611 frame->nb_samples = nb_samples;
612 if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
613 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
616 samples = (short *)frame->data[0];
617 samples_p = (int16_t **)frame->extended_data;
619 /* use coded_samples when applicable */
620 /* it is always <= nb_samples, so the output buffer will be large enough */
622 if (coded_samples != nb_samples)
623 av_log(avctx, AV_LOG_WARNING, "mismatch in coded sample count\n");
624 frame->nb_samples = nb_samples = coded_samples;
627 st = avctx->channels == 2 ? 1 : 0;
629 switch(avctx->codec->id) {
630 case AV_CODEC_ID_ADPCM_IMA_QT:
631 /* In QuickTime, IMA is encoded by chunks of 34 bytes (=64 samples).
632 Channel data is interleaved per-chunk. */
633 for (channel = 0; channel < avctx->channels; channel++) {
636 cs = &(c->status[channel]);
637 /* (pppppp) (piiiiiii) */
639 /* Bits 15-7 are the _top_ 9 bits of the 16-bit initial predictor value */
640 predictor = sign_extend(bytestream2_get_be16u(&gb), 16);
641 step_index = predictor & 0x7F;
644 if (cs->step_index == step_index) {
645 int diff = predictor - cs->predictor;
652 cs->step_index = step_index;
653 cs->predictor = predictor;
656 if (cs->step_index > 88u){
657 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
658 channel, cs->step_index);
659 return AVERROR_INVALIDDATA;
662 samples = samples_p[channel];
664 for (m = 0; m < 64; m += 2) {
665 int byte = bytestream2_get_byteu(&gb);
666 samples[m ] = adpcm_ima_qt_expand_nibble(cs, byte & 0x0F, 3);
667 samples[m + 1] = adpcm_ima_qt_expand_nibble(cs, byte >> 4 , 3);
671 case AV_CODEC_ID_ADPCM_IMA_WAV:
672 for(i=0; i<avctx->channels; i++){
673 cs = &(c->status[i]);
674 cs->predictor = samples_p[i][0] = sign_extend(bytestream2_get_le16u(&gb), 16);
676 cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
677 if (cs->step_index > 88u){
678 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
680 return AVERROR_INVALIDDATA;
684 for (n = 0; n < (nb_samples - 1) / 8; n++) {
685 for (i = 0; i < avctx->channels; i++) {
687 samples = &samples_p[i][1 + n * 8];
688 for (m = 0; m < 8; m += 2) {
689 int v = bytestream2_get_byteu(&gb);
690 samples[m ] = adpcm_ima_expand_nibble(cs, v & 0x0F, 3);
691 samples[m + 1] = adpcm_ima_expand_nibble(cs, v >> 4 , 3);
696 case AV_CODEC_ID_ADPCM_4XM:
697 for (i = 0; i < avctx->channels; i++)
698 c->status[i].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
700 for (i = 0; i < avctx->channels; i++) {
701 c->status[i].step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
702 if (c->status[i].step_index > 88u) {
703 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
704 i, c->status[i].step_index);
705 return AVERROR_INVALIDDATA;
709 for (i = 0; i < avctx->channels; i++) {
710 samples = (int16_t *)frame->data[i];
712 for (n = nb_samples >> 1; n > 0; n--) {
713 int v = bytestream2_get_byteu(&gb);
714 *samples++ = adpcm_ima_expand_nibble(cs, v & 0x0F, 4);
715 *samples++ = adpcm_ima_expand_nibble(cs, v >> 4 , 4);
719 case AV_CODEC_ID_ADPCM_MS:
723 block_predictor = bytestream2_get_byteu(&gb);
724 if (block_predictor > 6) {
725 av_log(avctx, AV_LOG_ERROR, "ERROR: block_predictor[0] = %d\n",
727 return AVERROR_INVALIDDATA;
729 c->status[0].coeff1 = ff_adpcm_AdaptCoeff1[block_predictor];
730 c->status[0].coeff2 = ff_adpcm_AdaptCoeff2[block_predictor];
732 block_predictor = bytestream2_get_byteu(&gb);
733 if (block_predictor > 6) {
734 av_log(avctx, AV_LOG_ERROR, "ERROR: block_predictor[1] = %d\n",
736 return AVERROR_INVALIDDATA;
738 c->status[1].coeff1 = ff_adpcm_AdaptCoeff1[block_predictor];
739 c->status[1].coeff2 = ff_adpcm_AdaptCoeff2[block_predictor];
741 c->status[0].idelta = sign_extend(bytestream2_get_le16u(&gb), 16);
743 c->status[1].idelta = sign_extend(bytestream2_get_le16u(&gb), 16);
746 c->status[0].sample1 = sign_extend(bytestream2_get_le16u(&gb), 16);
747 if (st) c->status[1].sample1 = sign_extend(bytestream2_get_le16u(&gb), 16);
748 c->status[0].sample2 = sign_extend(bytestream2_get_le16u(&gb), 16);
749 if (st) c->status[1].sample2 = sign_extend(bytestream2_get_le16u(&gb), 16);
751 *samples++ = c->status[0].sample2;
752 if (st) *samples++ = c->status[1].sample2;
753 *samples++ = c->status[0].sample1;
754 if (st) *samples++ = c->status[1].sample1;
755 for(n = (nb_samples - 2) >> (1 - st); n > 0; n--) {
756 int byte = bytestream2_get_byteu(&gb);
757 *samples++ = adpcm_ms_expand_nibble(&c->status[0 ], byte >> 4 );
758 *samples++ = adpcm_ms_expand_nibble(&c->status[st], byte & 0x0F);
762 case AV_CODEC_ID_ADPCM_IMA_DK4:
763 for (channel = 0; channel < avctx->channels; channel++) {
764 cs = &c->status[channel];
765 cs->predictor = *samples++ = sign_extend(bytestream2_get_le16u(&gb), 16);
766 cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
767 if (cs->step_index > 88u){
768 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
769 channel, cs->step_index);
770 return AVERROR_INVALIDDATA;
773 for (n = nb_samples >> (1 - st); n > 0; n--) {
774 int v = bytestream2_get_byteu(&gb);
775 *samples++ = adpcm_ima_expand_nibble(&c->status[0 ], v >> 4 , 3);
776 *samples++ = adpcm_ima_expand_nibble(&c->status[st], v & 0x0F, 3);
779 case AV_CODEC_ID_ADPCM_IMA_DK3:
783 int decode_top_nibble_next = 0;
785 const int16_t *samples_end = samples + avctx->channels * nb_samples;
787 bytestream2_skipu(&gb, 10);
788 c->status[0].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
789 c->status[1].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
790 c->status[0].step_index = bytestream2_get_byteu(&gb);
791 c->status[1].step_index = bytestream2_get_byteu(&gb);
792 if (c->status[0].step_index > 88u || c->status[1].step_index > 88u){
793 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i/%i\n",
794 c->status[0].step_index, c->status[1].step_index);
795 return AVERROR_INVALIDDATA;
797 /* sign extend the predictors */
798 diff_channel = c->status[1].predictor;
800 /* DK3 ADPCM support macro */
801 #define DK3_GET_NEXT_NIBBLE() \
802 if (decode_top_nibble_next) { \
803 nibble = last_byte >> 4; \
804 decode_top_nibble_next = 0; \
806 last_byte = bytestream2_get_byteu(&gb); \
807 nibble = last_byte & 0x0F; \
808 decode_top_nibble_next = 1; \
811 while (samples < samples_end) {
813 /* for this algorithm, c->status[0] is the sum channel and
814 * c->status[1] is the diff channel */
816 /* process the first predictor of the sum channel */
817 DK3_GET_NEXT_NIBBLE();
818 adpcm_ima_expand_nibble(&c->status[0], nibble, 3);
820 /* process the diff channel predictor */
821 DK3_GET_NEXT_NIBBLE();
822 adpcm_ima_expand_nibble(&c->status[1], nibble, 3);
824 /* process the first pair of stereo PCM samples */
825 diff_channel = (diff_channel + c->status[1].predictor) / 2;
826 *samples++ = c->status[0].predictor + c->status[1].predictor;
827 *samples++ = c->status[0].predictor - c->status[1].predictor;
829 /* process the second predictor of the sum channel */
830 DK3_GET_NEXT_NIBBLE();
831 adpcm_ima_expand_nibble(&c->status[0], nibble, 3);
833 /* process the second pair of stereo PCM samples */
834 diff_channel = (diff_channel + c->status[1].predictor) / 2;
835 *samples++ = c->status[0].predictor + c->status[1].predictor;
836 *samples++ = c->status[0].predictor - c->status[1].predictor;
840 case AV_CODEC_ID_ADPCM_IMA_ISS:
841 for (channel = 0; channel < avctx->channels; channel++) {
842 cs = &c->status[channel];
843 cs->predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
844 cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
845 if (cs->step_index > 88u){
846 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
847 channel, cs->step_index);
848 return AVERROR_INVALIDDATA;
852 for (n = nb_samples >> (1 - st); n > 0; n--) {
854 int v = bytestream2_get_byteu(&gb);
855 /* nibbles are swapped for mono */
863 *samples++ = adpcm_ima_expand_nibble(&c->status[0 ], v1, 3);
864 *samples++ = adpcm_ima_expand_nibble(&c->status[st], v2, 3);
867 case AV_CODEC_ID_ADPCM_IMA_APC:
868 while (bytestream2_get_bytes_left(&gb) > 0) {
869 int v = bytestream2_get_byteu(&gb);
870 *samples++ = adpcm_ima_expand_nibble(&c->status[0], v >> 4 , 3);
871 *samples++ = adpcm_ima_expand_nibble(&c->status[st], v & 0x0F, 3);
874 case AV_CODEC_ID_ADPCM_IMA_WS:
875 if (c->vqa_version == 3) {
876 for (channel = 0; channel < avctx->channels; channel++) {
877 int16_t *smp = samples_p[channel];
879 for (n = nb_samples / 2; n > 0; n--) {
880 int v = bytestream2_get_byteu(&gb);
881 *smp++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
882 *smp++ = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
886 for (n = nb_samples / 2; n > 0; n--) {
887 for (channel = 0; channel < avctx->channels; channel++) {
888 int v = bytestream2_get_byteu(&gb);
889 *samples++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
890 samples[st] = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
892 samples += avctx->channels;
895 bytestream2_seek(&gb, 0, SEEK_END);
897 case AV_CODEC_ID_ADPCM_XA:
899 int16_t *out0 = samples_p[0];
900 int16_t *out1 = samples_p[1];
901 int samples_per_block = 28 * (3 - avctx->channels) * 4;
902 int sample_offset = 0;
903 while (bytestream2_get_bytes_left(&gb) >= 128) {
904 if ((ret = xa_decode(avctx, out0, out1, buf + bytestream2_tell(&gb),
905 &c->status[0], &c->status[1],
906 avctx->channels, sample_offset)) < 0)
908 bytestream2_skipu(&gb, 128);
909 sample_offset += samples_per_block;
913 case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
914 for (i=0; i<=st; i++) {
915 c->status[i].step_index = bytestream2_get_le32u(&gb);
916 if (c->status[i].step_index > 88u) {
917 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
918 i, c->status[i].step_index);
919 return AVERROR_INVALIDDATA;
922 for (i=0; i<=st; i++)
923 c->status[i].predictor = bytestream2_get_le32u(&gb);
925 for (n = nb_samples >> (1 - st); n > 0; n--) {
926 int byte = bytestream2_get_byteu(&gb);
927 *samples++ = adpcm_ima_expand_nibble(&c->status[0], byte >> 4, 3);
928 *samples++ = adpcm_ima_expand_nibble(&c->status[st], byte & 0x0F, 3);
931 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
932 for (n = nb_samples >> (1 - st); n > 0; n--) {
933 int byte = bytestream2_get_byteu(&gb);
934 *samples++ = adpcm_ima_expand_nibble(&c->status[0], byte >> 4, 6);
935 *samples++ = adpcm_ima_expand_nibble(&c->status[st], byte & 0x0F, 6);
938 case AV_CODEC_ID_ADPCM_EA:
940 int previous_left_sample, previous_right_sample;
941 int current_left_sample, current_right_sample;
942 int next_left_sample, next_right_sample;
943 int coeff1l, coeff2l, coeff1r, coeff2r;
944 int shift_left, shift_right;
946 /* Each EA ADPCM frame has a 12-byte header followed by 30-byte pieces,
947 each coding 28 stereo samples. */
949 current_left_sample = sign_extend(bytestream2_get_le16u(&gb), 16);
950 previous_left_sample = sign_extend(bytestream2_get_le16u(&gb), 16);
951 current_right_sample = sign_extend(bytestream2_get_le16u(&gb), 16);
952 previous_right_sample = sign_extend(bytestream2_get_le16u(&gb), 16);
954 for (count1 = 0; count1 < nb_samples / 28; count1++) {
955 int byte = bytestream2_get_byteu(&gb);
956 coeff1l = ea_adpcm_table[ byte >> 4 ];
957 coeff2l = ea_adpcm_table[(byte >> 4 ) + 4];
958 coeff1r = ea_adpcm_table[ byte & 0x0F];
959 coeff2r = ea_adpcm_table[(byte & 0x0F) + 4];
961 byte = bytestream2_get_byteu(&gb);
962 shift_left = 20 - (byte >> 4);
963 shift_right = 20 - (byte & 0x0F);
965 for (count2 = 0; count2 < 28; count2++) {
966 byte = bytestream2_get_byteu(&gb);
967 next_left_sample = sign_extend(byte >> 4, 4) << shift_left;
968 next_right_sample = sign_extend(byte, 4) << shift_right;
970 next_left_sample = (next_left_sample +
971 (current_left_sample * coeff1l) +
972 (previous_left_sample * coeff2l) + 0x80) >> 8;
973 next_right_sample = (next_right_sample +
974 (current_right_sample * coeff1r) +
975 (previous_right_sample * coeff2r) + 0x80) >> 8;
977 previous_left_sample = current_left_sample;
978 current_left_sample = av_clip_int16(next_left_sample);
979 previous_right_sample = current_right_sample;
980 current_right_sample = av_clip_int16(next_right_sample);
981 *samples++ = current_left_sample;
982 *samples++ = current_right_sample;
986 bytestream2_skip(&gb, 2); // Skip terminating 0x0000
990 case AV_CODEC_ID_ADPCM_EA_MAXIS_XA:
992 int coeff[2][2], shift[2];
994 for(channel = 0; channel < avctx->channels; channel++) {
995 int byte = bytestream2_get_byteu(&gb);
997 coeff[channel][i] = ea_adpcm_table[(byte >> 4) + 4*i];
998 shift[channel] = 20 - (byte & 0x0F);
1000 for (count1 = 0; count1 < nb_samples / 2; count1++) {
1003 byte[0] = bytestream2_get_byteu(&gb);
1004 if (st) byte[1] = bytestream2_get_byteu(&gb);
1005 for(i = 4; i >= 0; i-=4) { /* Pairwise samples LL RR (st) or LL LL (mono) */
1006 for(channel = 0; channel < avctx->channels; channel++) {
1007 int sample = sign_extend(byte[channel] >> i, 4) << shift[channel];
1009 c->status[channel].sample1 * coeff[channel][0] +
1010 c->status[channel].sample2 * coeff[channel][1] + 0x80) >> 8;
1011 c->status[channel].sample2 = c->status[channel].sample1;
1012 c->status[channel].sample1 = av_clip_int16(sample);
1013 *samples++ = c->status[channel].sample1;
1017 bytestream2_seek(&gb, 0, SEEK_END);
1020 case AV_CODEC_ID_ADPCM_EA_R1:
1021 case AV_CODEC_ID_ADPCM_EA_R2:
1022 case AV_CODEC_ID_ADPCM_EA_R3: {
1023 /* channel numbering
1025 4chan: 0=fl, 1=rl, 2=fr, 3=rr
1026 6chan: 0=fl, 1=c, 2=fr, 3=rl, 4=rr, 5=sub */
1027 const int big_endian = avctx->codec->id == AV_CODEC_ID_ADPCM_EA_R3;
1028 int previous_sample, current_sample, next_sample;
1031 unsigned int channel;
1036 for (channel=0; channel<avctx->channels; channel++)
1037 offsets[channel] = (big_endian ? bytestream2_get_be32(&gb) :
1038 bytestream2_get_le32(&gb)) +
1039 (avctx->channels + 1) * 4;
1041 for (channel=0; channel<avctx->channels; channel++) {
1042 bytestream2_seek(&gb, offsets[channel], SEEK_SET);
1043 samplesC = samples_p[channel];
1045 if (avctx->codec->id == AV_CODEC_ID_ADPCM_EA_R1) {
1046 current_sample = sign_extend(bytestream2_get_le16(&gb), 16);
1047 previous_sample = sign_extend(bytestream2_get_le16(&gb), 16);
1049 current_sample = c->status[channel].predictor;
1050 previous_sample = c->status[channel].prev_sample;
1053 for (count1 = 0; count1 < nb_samples / 28; count1++) {
1054 int byte = bytestream2_get_byte(&gb);
1055 if (byte == 0xEE) { /* only seen in R2 and R3 */
1056 current_sample = sign_extend(bytestream2_get_be16(&gb), 16);
1057 previous_sample = sign_extend(bytestream2_get_be16(&gb), 16);
1059 for (count2=0; count2<28; count2++)
1060 *samplesC++ = sign_extend(bytestream2_get_be16(&gb), 16);
1062 coeff1 = ea_adpcm_table[ byte >> 4 ];
1063 coeff2 = ea_adpcm_table[(byte >> 4) + 4];
1064 shift = 20 - (byte & 0x0F);
1066 for (count2=0; count2<28; count2++) {
1068 next_sample = sign_extend(byte, 4) << shift;
1070 byte = bytestream2_get_byte(&gb);
1071 next_sample = sign_extend(byte >> 4, 4) << shift;
1074 next_sample += (current_sample * coeff1) +
1075 (previous_sample * coeff2);
1076 next_sample = av_clip_int16(next_sample >> 8);
1078 previous_sample = current_sample;
1079 current_sample = next_sample;
1080 *samplesC++ = current_sample;
1086 } else if (count != count1) {
1087 av_log(avctx, AV_LOG_WARNING, "per-channel sample count mismatch\n");
1088 count = FFMAX(count, count1);
1091 if (avctx->codec->id != AV_CODEC_ID_ADPCM_EA_R1) {
1092 c->status[channel].predictor = current_sample;
1093 c->status[channel].prev_sample = previous_sample;
1097 frame->nb_samples = count * 28;
1098 bytestream2_seek(&gb, 0, SEEK_END);
1101 case AV_CODEC_ID_ADPCM_EA_XAS:
1102 for (channel=0; channel<avctx->channels; channel++) {
1103 int coeff[2][4], shift[4];
1104 int16_t *s = samples_p[channel];
1105 for (n = 0; n < 4; n++, s += 32) {
1106 int val = sign_extend(bytestream2_get_le16u(&gb), 16);
1108 coeff[i][n] = ea_adpcm_table[(val&0x0F)+4*i];
1111 val = sign_extend(bytestream2_get_le16u(&gb), 16);
1112 shift[n] = 20 - (val & 0x0F);
1116 for (m=2; m<32; m+=2) {
1117 s = &samples_p[channel][m];
1118 for (n = 0; n < 4; n++, s += 32) {
1120 int byte = bytestream2_get_byteu(&gb);
1122 level = sign_extend(byte >> 4, 4) << shift[n];
1123 pred = s[-1] * coeff[0][n] + s[-2] * coeff[1][n];
1124 s[0] = av_clip_int16((level + pred + 0x80) >> 8);
1126 level = sign_extend(byte, 4) << shift[n];
1127 pred = s[0] * coeff[0][n] + s[-1] * coeff[1][n];
1128 s[1] = av_clip_int16((level + pred + 0x80) >> 8);
1133 case AV_CODEC_ID_ADPCM_IMA_AMV:
1134 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1135 if (avctx->codec->id == AV_CODEC_ID_ADPCM_IMA_AMV) {
1136 c->status[0].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
1137 c->status[0].step_index = bytestream2_get_le16u(&gb);
1138 bytestream2_skipu(&gb, 4);
1140 c->status[0].predictor = sign_extend(bytestream2_get_be16u(&gb), 16);
1141 c->status[0].step_index = bytestream2_get_byteu(&gb);
1142 bytestream2_skipu(&gb, 1);
1144 if (c->status[0].step_index > 88u) {
1145 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i\n",
1146 c->status[0].step_index);
1147 return AVERROR_INVALIDDATA;
1150 for (n = nb_samples >> (1 - st); n > 0; n--) {
1151 int hi, lo, v = bytestream2_get_byteu(&gb);
1153 if (avctx->codec->id == AV_CODEC_ID_ADPCM_IMA_AMV) {
1161 *samples++ = adpcm_ima_expand_nibble(&c->status[0], lo, 3);
1162 *samples++ = adpcm_ima_expand_nibble(&c->status[0], hi, 3);
1165 case AV_CODEC_ID_ADPCM_CT:
1166 for (n = nb_samples >> (1 - st); n > 0; n--) {
1167 int v = bytestream2_get_byteu(&gb);
1168 *samples++ = adpcm_ct_expand_nibble(&c->status[0 ], v >> 4 );
1169 *samples++ = adpcm_ct_expand_nibble(&c->status[st], v & 0x0F);
1172 case AV_CODEC_ID_ADPCM_SBPRO_4:
1173 case AV_CODEC_ID_ADPCM_SBPRO_3:
1174 case AV_CODEC_ID_ADPCM_SBPRO_2:
1175 if (!c->status[0].step_index) {
1176 /* the first byte is a raw sample */
1177 *samples++ = 128 * (bytestream2_get_byteu(&gb) - 0x80);
1179 *samples++ = 128 * (bytestream2_get_byteu(&gb) - 0x80);
1180 c->status[0].step_index = 1;
1183 if (avctx->codec->id == AV_CODEC_ID_ADPCM_SBPRO_4) {
1184 for (n = nb_samples >> (1 - st); n > 0; n--) {
1185 int byte = bytestream2_get_byteu(&gb);
1186 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1188 *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],
1191 } else if (avctx->codec->id == AV_CODEC_ID_ADPCM_SBPRO_3) {
1192 for (n = nb_samples / 3; n > 0; n--) {
1193 int byte = bytestream2_get_byteu(&gb);
1194 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1196 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1197 (byte >> 2) & 0x07, 3, 0);
1198 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1202 for (n = nb_samples >> (2 - st); n > 0; n--) {
1203 int byte = bytestream2_get_byteu(&gb);
1204 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1206 *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],
1207 (byte >> 4) & 0x03, 2, 2);
1208 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1209 (byte >> 2) & 0x03, 2, 2);
1210 *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],
1215 case AV_CODEC_ID_ADPCM_SWF:
1216 adpcm_swf_decode(avctx, buf, buf_size, samples);
1217 bytestream2_seek(&gb, 0, SEEK_END);
1219 case AV_CODEC_ID_ADPCM_YAMAHA:
1220 for (n = nb_samples >> (1 - st); n > 0; n--) {
1221 int v = bytestream2_get_byteu(&gb);
1222 *samples++ = adpcm_yamaha_expand_nibble(&c->status[0 ], v & 0x0F);
1223 *samples++ = adpcm_yamaha_expand_nibble(&c->status[st], v >> 4 );
1226 case AV_CODEC_ID_ADPCM_THP:
1232 for (i = 0; i < 2; i++)
1233 for (n = 0; n < 16; n++)
1234 table[i][n] = sign_extend(bytestream2_get_be16u(&gb), 16);
1236 /* Initialize the previous sample. */
1237 for (i = 0; i < 2; i++)
1238 for (n = 0; n < 2; n++)
1239 prev[i][n] = sign_extend(bytestream2_get_be16u(&gb), 16);
1241 for (ch = 0; ch <= st; ch++) {
1242 samples = samples_p[ch];
1244 /* Read in every sample for this channel. */
1245 for (i = 0; i < nb_samples / 14; i++) {
1246 int byte = bytestream2_get_byteu(&gb);
1247 int index = (byte >> 4) & 7;
1248 unsigned int exp = byte & 0x0F;
1249 int factor1 = table[ch][index * 2];
1250 int factor2 = table[ch][index * 2 + 1];
1252 /* Decode 14 samples. */
1253 for (n = 0; n < 14; n++) {
1257 sampledat = sign_extend(byte, 4);
1259 byte = bytestream2_get_byteu(&gb);
1260 sampledat = sign_extend(byte >> 4, 4);
1263 sampledat = ((prev[ch][0]*factor1
1264 + prev[ch][1]*factor2) >> 11) + (sampledat << exp);
1265 *samples = av_clip_int16(sampledat);
1266 prev[ch][1] = prev[ch][0];
1267 prev[ch][0] = *samples++;
1280 return bytestream2_tell(&gb);
1284 static const enum AVSampleFormat sample_fmts_s16[] = { AV_SAMPLE_FMT_S16,
1285 AV_SAMPLE_FMT_NONE };
1286 static const enum AVSampleFormat sample_fmts_s16p[] = { AV_SAMPLE_FMT_S16,
1287 AV_SAMPLE_FMT_NONE };
1288 static const enum AVSampleFormat sample_fmts_both[] = { AV_SAMPLE_FMT_S16,
1290 AV_SAMPLE_FMT_NONE };
1292 #define ADPCM_DECODER(id_, sample_fmts_, name_, long_name_) \
1293 AVCodec ff_ ## name_ ## _decoder = { \
1295 .type = AVMEDIA_TYPE_AUDIO, \
1297 .priv_data_size = sizeof(ADPCMDecodeContext), \
1298 .init = adpcm_decode_init, \
1299 .decode = adpcm_decode_frame, \
1300 .capabilities = CODEC_CAP_DR1, \
1301 .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
1302 .sample_fmts = sample_fmts_, \
1305 /* Note: Do not forget to add new entries to the Makefile as well. */
1306 ADPCM_DECODER(AV_CODEC_ID_ADPCM_4XM, sample_fmts_s16p, adpcm_4xm, "ADPCM 4X Movie");
1307 ADPCM_DECODER(AV_CODEC_ID_ADPCM_CT, sample_fmts_s16, adpcm_ct, "ADPCM Creative Technology");
1308 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA, sample_fmts_s16, adpcm_ea, "ADPCM Electronic Arts");
1309 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_MAXIS_XA, sample_fmts_s16, adpcm_ea_maxis_xa, "ADPCM Electronic Arts Maxis CDROM XA");
1310 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R1, sample_fmts_s16p, adpcm_ea_r1, "ADPCM Electronic Arts R1");
1311 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R2, sample_fmts_s16p, adpcm_ea_r2, "ADPCM Electronic Arts R2");
1312 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R3, sample_fmts_s16p, adpcm_ea_r3, "ADPCM Electronic Arts R3");
1313 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_XAS, sample_fmts_s16p, adpcm_ea_xas, "ADPCM Electronic Arts XAS");
1314 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_AMV, sample_fmts_s16, adpcm_ima_amv, "ADPCM IMA AMV");
1315 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_APC, sample_fmts_s16, adpcm_ima_apc, "ADPCM IMA CRYO APC");
1316 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DK3, sample_fmts_s16, adpcm_ima_dk3, "ADPCM IMA Duck DK3");
1317 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DK4, sample_fmts_s16, adpcm_ima_dk4, "ADPCM IMA Duck DK4");
1318 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_EA_EACS, sample_fmts_s16, adpcm_ima_ea_eacs, "ADPCM IMA Electronic Arts EACS");
1319 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_EA_SEAD, sample_fmts_s16, adpcm_ima_ea_sead, "ADPCM IMA Electronic Arts SEAD");
1320 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_ISS, sample_fmts_s16, adpcm_ima_iss, "ADPCM IMA Funcom ISS");
1321 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_QT, sample_fmts_s16p, adpcm_ima_qt, "ADPCM IMA QuickTime");
1322 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_SMJPEG, sample_fmts_s16, adpcm_ima_smjpeg, "ADPCM IMA Loki SDL MJPEG");
1323 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WAV, sample_fmts_s16p, adpcm_ima_wav, "ADPCM IMA WAV");
1324 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WS, sample_fmts_both, adpcm_ima_ws, "ADPCM IMA Westwood");
1325 ADPCM_DECODER(AV_CODEC_ID_ADPCM_MS, sample_fmts_s16, adpcm_ms, "ADPCM Microsoft");
1326 ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_2, sample_fmts_s16, adpcm_sbpro_2, "ADPCM Sound Blaster Pro 2-bit");
1327 ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_3, sample_fmts_s16, adpcm_sbpro_3, "ADPCM Sound Blaster Pro 2.6-bit");
1328 ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_4, sample_fmts_s16, adpcm_sbpro_4, "ADPCM Sound Blaster Pro 4-bit");
1329 ADPCM_DECODER(AV_CODEC_ID_ADPCM_SWF, sample_fmts_s16, adpcm_swf, "ADPCM Shockwave Flash");
1330 ADPCM_DECODER(AV_CODEC_ID_ADPCM_THP, sample_fmts_s16p, adpcm_thp, "ADPCM Nintendo Gamecube THP");
1331 ADPCM_DECODER(AV_CODEC_ID_ADPCM_XA, sample_fmts_s16p, adpcm_xa, "ADPCM CDROM XA");
1332 ADPCM_DECODER(AV_CODEC_ID_ADPCM_YAMAHA, sample_fmts_s16, adpcm_yamaha, "ADPCM Yamaha");