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)
15 * Argonaut Games ADPCM decoder by Zane van Iperen (zane@zanevaniperen.com)
16 * Simon & Schuster Interactive ADPCM decoder by Zane van Iperen (zane@zanevaniperen.com)
17 * Ubisoft ADPCM decoder by Zane van Iperen (zane@zanevaniperen.com)
19 * This file is part of FFmpeg.
21 * FFmpeg is free software; you can redistribute it and/or
22 * modify it under the terms of the GNU Lesser General Public
23 * License as published by the Free Software Foundation; either
24 * version 2.1 of the License, or (at your option) any later version.
26 * FFmpeg is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
29 * Lesser General Public License for more details.
31 * You should have received a copy of the GNU Lesser General Public
32 * License along with FFmpeg; if not, write to the Free Software
33 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
37 #include "bytestream.h"
39 #include "adpcm_data.h"
45 * Features and limitations:
47 * Reference documents:
48 * http://wiki.multimedia.cx/index.php?title=Category:ADPCM_Audio_Codecs
49 * http://www.pcisys.net/~melanson/codecs/simpleaudio.html [dead]
50 * http://www.geocities.com/SiliconValley/8682/aud3.txt [dead]
51 * http://openquicktime.sourceforge.net/
52 * XAnim sources (xa_codec.c) http://xanim.polter.net/
53 * http://www.cs.ucla.edu/~leec/mediabench/applications.html [dead]
54 * SoX source code http://sox.sourceforge.net/
57 * http://ku-www.ss.titech.ac.jp/~yatsushi/xaadpcm.html [dead]
58 * vagpack & depack http://homepages.compuserve.de/bITmASTER32/psx-index.html [dead]
59 * readstr http://www.geocities.co.jp/Playtown/2004/
62 /* These are for CD-ROM XA ADPCM */
63 static const int8_t xa_adpcm_table[5][2] = {
71 static const int16_t ea_adpcm_table[] = {
79 // padded to zero where table size is less then 16
80 static const int8_t swf_index_tables[4][16] = {
82 /*3*/ { -1, -1, 2, 4 },
83 /*4*/ { -1, -1, -1, -1, 2, 4, 6, 8 },
84 /*5*/ { -1, -1, -1, -1, -1, -1, -1, -1, 1, 2, 4, 6, 8, 10, 13, 16 }
87 static const int8_t zork_index_table[8] = {
88 -1, -1, -1, 1, 4, 7, 10, 12,
93 typedef struct ADPCMDecodeContext {
94 ADPCMChannelStatus status[14];
95 int vqa_version; /**< VQA version. Used for ADPCM_IMA_WS */
99 static av_cold int adpcm_decode_init(AVCodecContext * avctx)
101 ADPCMDecodeContext *c = avctx->priv_data;
102 unsigned int min_channels = 1;
103 unsigned int max_channels = 2;
105 switch(avctx->codec->id) {
106 case AV_CODEC_ID_ADPCM_DTK:
107 case AV_CODEC_ID_ADPCM_EA:
110 case AV_CODEC_ID_ADPCM_AFC:
111 case AV_CODEC_ID_ADPCM_EA_R1:
112 case AV_CODEC_ID_ADPCM_EA_R2:
113 case AV_CODEC_ID_ADPCM_EA_R3:
114 case AV_CODEC_ID_ADPCM_EA_XAS:
115 case AV_CODEC_ID_ADPCM_MS:
118 case AV_CODEC_ID_ADPCM_MTAF:
121 if (avctx->channels & 1) {
122 avpriv_request_sample(avctx, "channel count %d\n", avctx->channels);
123 return AVERROR_PATCHWELCOME;
126 case AV_CODEC_ID_ADPCM_PSX:
129 case AV_CODEC_ID_ADPCM_IMA_DAT4:
130 case AV_CODEC_ID_ADPCM_THP:
131 case AV_CODEC_ID_ADPCM_THP_LE:
135 if (avctx->channels < min_channels || avctx->channels > max_channels) {
136 av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
137 return AVERROR(EINVAL);
140 switch(avctx->codec->id) {
141 case AV_CODEC_ID_ADPCM_CT:
142 c->status[0].step = c->status[1].step = 511;
144 case AV_CODEC_ID_ADPCM_IMA_WAV:
145 if (avctx->bits_per_coded_sample < 2 || avctx->bits_per_coded_sample > 5)
146 return AVERROR_INVALIDDATA;
148 case AV_CODEC_ID_ADPCM_IMA_APC:
149 if (avctx->extradata && avctx->extradata_size >= 8) {
150 c->status[0].predictor = av_clip_intp2(AV_RL32(avctx->extradata ), 18);
151 c->status[1].predictor = av_clip_intp2(AV_RL32(avctx->extradata + 4), 18);
154 case AV_CODEC_ID_ADPCM_IMA_APM:
155 if (avctx->extradata && avctx->extradata_size >= 16) {
156 c->status[0].predictor = AV_RL32(avctx->extradata + 0);
157 c->status[0].step_index = AV_RL32(avctx->extradata + 4);
158 c->status[1].predictor = AV_RL32(avctx->extradata + 8);
159 c->status[1].step_index = AV_RL32(avctx->extradata + 12);
162 case AV_CODEC_ID_ADPCM_IMA_WS:
163 if (avctx->extradata && avctx->extradata_size >= 2)
164 c->vqa_version = AV_RL16(avctx->extradata);
166 case AV_CODEC_ID_ADPCM_ARGO:
167 if (avctx->bits_per_coded_sample != 4)
168 return AVERROR_INVALIDDATA;
170 case AV_CODEC_ID_ADPCM_ZORK:
171 if (avctx->bits_per_coded_sample != 8)
172 return AVERROR_INVALIDDATA;
178 switch (avctx->codec->id) {
179 case AV_CODEC_ID_ADPCM_AICA:
180 case AV_CODEC_ID_ADPCM_IMA_DAT4:
181 case AV_CODEC_ID_ADPCM_IMA_QT:
182 case AV_CODEC_ID_ADPCM_IMA_WAV:
183 case AV_CODEC_ID_ADPCM_4XM:
184 case AV_CODEC_ID_ADPCM_XA:
185 case AV_CODEC_ID_ADPCM_EA_R1:
186 case AV_CODEC_ID_ADPCM_EA_R2:
187 case AV_CODEC_ID_ADPCM_EA_R3:
188 case AV_CODEC_ID_ADPCM_EA_XAS:
189 case AV_CODEC_ID_ADPCM_THP:
190 case AV_CODEC_ID_ADPCM_THP_LE:
191 case AV_CODEC_ID_ADPCM_AFC:
192 case AV_CODEC_ID_ADPCM_DTK:
193 case AV_CODEC_ID_ADPCM_PSX:
194 case AV_CODEC_ID_ADPCM_MTAF:
195 case AV_CODEC_ID_ADPCM_ARGO:
196 avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
198 case AV_CODEC_ID_ADPCM_IMA_WS:
199 avctx->sample_fmt = c->vqa_version == 3 ? AV_SAMPLE_FMT_S16P :
202 case AV_CODEC_ID_ADPCM_MS:
203 avctx->sample_fmt = avctx->channels > 2 ? AV_SAMPLE_FMT_S16P :
207 avctx->sample_fmt = AV_SAMPLE_FMT_S16;
213 static inline int16_t adpcm_agm_expand_nibble(ADPCMChannelStatus *c, int8_t nibble)
215 int delta, pred, step, add;
220 add = (delta * 2 + 1) * step;
224 if ((nibble & 8) == 0)
225 pred = av_clip(pred + (add >> 3), -32767, 32767);
227 pred = av_clip(pred - (add >> 3), -32767, 32767);
234 c->step = av_clip(c->step * 2, 127, 24576);
252 c->step = av_clip(c->step, 127, 24576);
257 static inline int16_t adpcm_ima_expand_nibble(ADPCMChannelStatus *c, int8_t nibble, int shift)
261 int sign, delta, diff, step;
263 step = ff_adpcm_step_table[c->step_index];
264 step_index = c->step_index + ff_adpcm_index_table[(unsigned)nibble];
265 step_index = av_clip(step_index, 0, 88);
269 /* perform direct multiplication instead of series of jumps proposed by
270 * the reference ADPCM implementation since modern CPUs can do the mults
272 diff = ((2 * delta + 1) * step) >> shift;
273 predictor = c->predictor;
274 if (sign) predictor -= diff;
275 else predictor += diff;
277 c->predictor = av_clip_int16(predictor);
278 c->step_index = step_index;
280 return (int16_t)c->predictor;
283 static inline int16_t adpcm_ima_wav_expand_nibble(ADPCMChannelStatus *c, GetBitContext *gb, int bps)
285 int nibble, step_index, predictor, sign, delta, diff, step, shift;
288 nibble = get_bits_le(gb, bps),
289 step = ff_adpcm_step_table[c->step_index];
290 step_index = c->step_index + ff_adpcm_index_tables[bps - 2][nibble];
291 step_index = av_clip(step_index, 0, 88);
293 sign = nibble & (1 << shift);
294 delta = av_mod_uintp2(nibble, shift);
295 diff = ((2 * delta + 1) * step) >> shift;
296 predictor = c->predictor;
297 if (sign) predictor -= diff;
298 else predictor += diff;
300 c->predictor = av_clip_int16(predictor);
301 c->step_index = step_index;
303 return (int16_t)c->predictor;
306 static inline int adpcm_ima_qt_expand_nibble(ADPCMChannelStatus *c, int nibble, int shift)
312 step = ff_adpcm_step_table[c->step_index];
313 step_index = c->step_index + ff_adpcm_index_table[nibble];
314 step_index = av_clip(step_index, 0, 88);
317 if (nibble & 4) diff += step;
318 if (nibble & 2) diff += step >> 1;
319 if (nibble & 1) diff += step >> 2;
322 predictor = c->predictor - diff;
324 predictor = c->predictor + diff;
326 c->predictor = av_clip_int16(predictor);
327 c->step_index = step_index;
332 static inline int16_t adpcm_ms_expand_nibble(ADPCMChannelStatus *c, int nibble)
336 predictor = (((c->sample1) * (c->coeff1)) + ((c->sample2) * (c->coeff2))) / 64;
337 predictor += ((nibble & 0x08)?(nibble - 0x10):(nibble)) * c->idelta;
339 c->sample2 = c->sample1;
340 c->sample1 = av_clip_int16(predictor);
341 c->idelta = (ff_adpcm_AdaptationTable[(int)nibble] * c->idelta) >> 8;
342 if (c->idelta < 16) c->idelta = 16;
343 if (c->idelta > INT_MAX/768) {
344 av_log(NULL, AV_LOG_WARNING, "idelta overflow\n");
345 c->idelta = INT_MAX/768;
351 static inline int16_t adpcm_ima_oki_expand_nibble(ADPCMChannelStatus *c, int nibble)
353 int step_index, predictor, sign, delta, diff, step;
355 step = ff_adpcm_oki_step_table[c->step_index];
356 step_index = c->step_index + ff_adpcm_index_table[(unsigned)nibble];
357 step_index = av_clip(step_index, 0, 48);
361 diff = ((2 * delta + 1) * step) >> 3;
362 predictor = c->predictor;
363 if (sign) predictor -= diff;
364 else predictor += diff;
366 c->predictor = av_clip_intp2(predictor, 11);
367 c->step_index = step_index;
369 return c->predictor * 16;
372 static inline int16_t adpcm_ct_expand_nibble(ADPCMChannelStatus *c, int8_t nibble)
374 int sign, delta, diff;
379 /* perform direct multiplication instead of series of jumps proposed by
380 * the reference ADPCM implementation since modern CPUs can do the mults
382 diff = ((2 * delta + 1) * c->step) >> 3;
383 /* predictor update is not so trivial: predictor is multiplied on 254/256 before updating */
384 c->predictor = ((c->predictor * 254) >> 8) + (sign ? -diff : diff);
385 c->predictor = av_clip_int16(c->predictor);
386 /* calculate new step and clamp it to range 511..32767 */
387 new_step = (ff_adpcm_AdaptationTable[nibble & 7] * c->step) >> 8;
388 c->step = av_clip(new_step, 511, 32767);
390 return (int16_t)c->predictor;
393 static inline int16_t adpcm_sbpro_expand_nibble(ADPCMChannelStatus *c, int8_t nibble, int size, int shift)
395 int sign, delta, diff;
397 sign = nibble & (1<<(size-1));
398 delta = nibble & ((1<<(size-1))-1);
399 diff = delta << (7 + c->step + shift);
402 c->predictor = av_clip(c->predictor + (sign ? -diff : diff), -16384,16256);
404 /* calculate new step */
405 if (delta >= (2*size - 3) && c->step < 3)
407 else if (delta == 0 && c->step > 0)
410 return (int16_t) c->predictor;
413 static inline int16_t adpcm_yamaha_expand_nibble(ADPCMChannelStatus *c, uint8_t nibble)
420 c->predictor += (c->step * ff_adpcm_yamaha_difflookup[nibble]) / 8;
421 c->predictor = av_clip_int16(c->predictor);
422 c->step = (c->step * ff_adpcm_yamaha_indexscale[nibble]) >> 8;
423 c->step = av_clip(c->step, 127, 24576);
427 static inline int16_t adpcm_mtaf_expand_nibble(ADPCMChannelStatus *c, uint8_t nibble)
429 c->predictor += ff_adpcm_mtaf_stepsize[c->step][nibble];
430 c->predictor = av_clip_int16(c->predictor);
431 c->step += ff_adpcm_index_table[nibble];
432 c->step = av_clip_uintp2(c->step, 5);
436 static inline int16_t adpcm_zork_expand_nibble(ADPCMChannelStatus *c, uint8_t nibble)
438 int16_t index = c->step_index;
439 uint32_t lookup_sample = ff_adpcm_step_table[index];
443 sample += lookup_sample;
445 sample += lookup_sample >> 1;
447 sample += lookup_sample >> 2;
449 sample += lookup_sample >> 3;
451 sample += lookup_sample >> 4;
453 sample += lookup_sample >> 5;
455 sample += lookup_sample >> 6;
459 sample += c->predictor;
460 sample = av_clip_int16(sample);
462 index += zork_index_table[(nibble >> 4) & 7];
463 index = av_clip(index, 0, 88);
465 c->predictor = sample;
466 c->step_index = index;
471 static int xa_decode(AVCodecContext *avctx, int16_t *out0, int16_t *out1,
472 const uint8_t *in, ADPCMChannelStatus *left,
473 ADPCMChannelStatus *right, int channels, int sample_offset)
476 int shift,filter,f0,f1;
480 out0 += sample_offset;
484 out1 += sample_offset;
487 shift = 12 - (in[4+i*2] & 15);
488 filter = in[4+i*2] >> 4;
489 if (filter >= FF_ARRAY_ELEMS(xa_adpcm_table)) {
490 avpriv_request_sample(avctx, "unknown XA-ADPCM filter %d", filter);
493 f0 = xa_adpcm_table[filter][0];
494 f1 = xa_adpcm_table[filter][1];
502 t = sign_extend(d, 4);
503 s = t*(1<<shift) + ((s_1*f0 + s_2*f1+32)>>6);
505 s_1 = av_clip_int16(s);
512 s_1 = right->sample1;
513 s_2 = right->sample2;
516 shift = 12 - (in[5+i*2] & 15);
517 filter = in[5+i*2] >> 4;
518 if (filter >= FF_ARRAY_ELEMS(xa_adpcm_table)) {
519 avpriv_request_sample(avctx, "unknown XA-ADPCM filter %d", filter);
523 f0 = xa_adpcm_table[filter][0];
524 f1 = xa_adpcm_table[filter][1];
529 t = sign_extend(d >> 4, 4);
530 s = t*(1<<shift) + ((s_1*f0 + s_2*f1+32)>>6);
532 s_1 = av_clip_int16(s);
537 right->sample1 = s_1;
538 right->sample2 = s_2;
544 out0 += 28 * (3 - channels);
545 out1 += 28 * (3 - channels);
551 static void adpcm_swf_decode(AVCodecContext *avctx, const uint8_t *buf, int buf_size, int16_t *samples)
553 ADPCMDecodeContext *c = avctx->priv_data;
556 int k0, signmask, nb_bits, count;
557 int size = buf_size*8;
560 init_get_bits(&gb, buf, size);
562 //read bits & initial values
563 nb_bits = get_bits(&gb, 2)+2;
564 table = swf_index_tables[nb_bits-2];
565 k0 = 1 << (nb_bits-2);
566 signmask = 1 << (nb_bits-1);
568 while (get_bits_count(&gb) <= size - 22*avctx->channels) {
569 for (i = 0; i < avctx->channels; i++) {
570 *samples++ = c->status[i].predictor = get_sbits(&gb, 16);
571 c->status[i].step_index = get_bits(&gb, 6);
574 for (count = 0; get_bits_count(&gb) <= size - nb_bits*avctx->channels && count < 4095; count++) {
577 for (i = 0; i < avctx->channels; i++) {
578 // similar to IMA adpcm
579 int delta = get_bits(&gb, nb_bits);
580 int step = ff_adpcm_step_table[c->status[i].step_index];
581 int vpdiff = 0; // vpdiff = (delta+0.5)*step/4
592 if (delta & signmask)
593 c->status[i].predictor -= vpdiff;
595 c->status[i].predictor += vpdiff;
597 c->status[i].step_index += table[delta & (~signmask)];
599 c->status[i].step_index = av_clip(c->status[i].step_index, 0, 88);
600 c->status[i].predictor = av_clip_int16(c->status[i].predictor);
602 *samples++ = c->status[i].predictor;
608 static inline int16_t adpcm_argo_expand_nibble(ADPCMChannelStatus *cs, int nibble, int control, int shift)
610 int sample = nibble * (1 << shift);
613 sample += (8 * cs->sample1) - (4 * cs->sample2);
615 sample += 4 * cs->sample1;
617 sample = av_clip_int16(sample >> 2);
619 cs->sample2 = cs->sample1;
620 cs->sample1 = sample;
626 * Get the number of samples that will be decoded from the packet.
627 * In one case, this is actually the maximum number of samples possible to
628 * decode with the given buf_size.
630 * @param[out] coded_samples set to the number of samples as coded in the
631 * packet, or 0 if the codec does not encode the
632 * number of samples in each frame.
633 * @param[out] approx_nb_samples set to non-zero if the number of samples
634 * returned is an approximation.
636 static int get_nb_samples(AVCodecContext *avctx, GetByteContext *gb,
637 int buf_size, int *coded_samples, int *approx_nb_samples)
639 ADPCMDecodeContext *s = avctx->priv_data;
641 int ch = avctx->channels;
642 int has_coded_samples = 0;
646 *approx_nb_samples = 0;
651 switch (avctx->codec->id) {
652 /* constant, only check buf_size */
653 case AV_CODEC_ID_ADPCM_EA_XAS:
654 if (buf_size < 76 * ch)
658 case AV_CODEC_ID_ADPCM_IMA_QT:
659 if (buf_size < 34 * ch)
663 case AV_CODEC_ID_ADPCM_ARGO:
664 if (buf_size < 17 * ch)
668 /* simple 4-bit adpcm */
669 case AV_CODEC_ID_ADPCM_CT:
670 case AV_CODEC_ID_ADPCM_IMA_APC:
671 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
672 case AV_CODEC_ID_ADPCM_IMA_OKI:
673 case AV_CODEC_ID_ADPCM_IMA_WS:
674 case AV_CODEC_ID_ADPCM_YAMAHA:
675 case AV_CODEC_ID_ADPCM_AICA:
676 case AV_CODEC_ID_ADPCM_IMA_SSI:
677 case AV_CODEC_ID_ADPCM_IMA_APM:
678 nb_samples = buf_size * 2 / ch;
684 /* simple 4-bit adpcm, with header */
686 switch (avctx->codec->id) {
687 case AV_CODEC_ID_ADPCM_4XM:
688 case AV_CODEC_ID_ADPCM_AGM:
689 case AV_CODEC_ID_ADPCM_IMA_DAT4:
690 case AV_CODEC_ID_ADPCM_IMA_ISS: header_size = 4 * ch; break;
691 case AV_CODEC_ID_ADPCM_IMA_AMV: header_size = 8; break;
692 case AV_CODEC_ID_ADPCM_IMA_SMJPEG: header_size = 4 * ch; break;
695 return (buf_size - header_size) * 2 / ch;
697 /* more complex formats */
698 switch (avctx->codec->id) {
699 case AV_CODEC_ID_ADPCM_EA:
700 has_coded_samples = 1;
701 *coded_samples = bytestream2_get_le32(gb);
702 *coded_samples -= *coded_samples % 28;
703 nb_samples = (buf_size - 12) / 30 * 28;
705 case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
706 has_coded_samples = 1;
707 *coded_samples = bytestream2_get_le32(gb);
708 nb_samples = (buf_size - (4 + 8 * ch)) * 2 / ch;
710 case AV_CODEC_ID_ADPCM_EA_MAXIS_XA:
711 nb_samples = (buf_size - ch) / ch * 2;
713 case AV_CODEC_ID_ADPCM_EA_R1:
714 case AV_CODEC_ID_ADPCM_EA_R2:
715 case AV_CODEC_ID_ADPCM_EA_R3:
716 /* maximum number of samples */
717 /* has internal offsets and a per-frame switch to signal raw 16-bit */
718 has_coded_samples = 1;
719 switch (avctx->codec->id) {
720 case AV_CODEC_ID_ADPCM_EA_R1:
721 header_size = 4 + 9 * ch;
722 *coded_samples = bytestream2_get_le32(gb);
724 case AV_CODEC_ID_ADPCM_EA_R2:
725 header_size = 4 + 5 * ch;
726 *coded_samples = bytestream2_get_le32(gb);
728 case AV_CODEC_ID_ADPCM_EA_R3:
729 header_size = 4 + 5 * ch;
730 *coded_samples = bytestream2_get_be32(gb);
733 *coded_samples -= *coded_samples % 28;
734 nb_samples = (buf_size - header_size) * 2 / ch;
735 nb_samples -= nb_samples % 28;
736 *approx_nb_samples = 1;
738 case AV_CODEC_ID_ADPCM_IMA_DK3:
739 if (avctx->block_align > 0)
740 buf_size = FFMIN(buf_size, avctx->block_align);
741 nb_samples = ((buf_size - 16) * 2 / 3 * 4) / ch;
743 case AV_CODEC_ID_ADPCM_IMA_DK4:
744 if (avctx->block_align > 0)
745 buf_size = FFMIN(buf_size, avctx->block_align);
746 if (buf_size < 4 * ch)
747 return AVERROR_INVALIDDATA;
748 nb_samples = 1 + (buf_size - 4 * ch) * 2 / ch;
750 case AV_CODEC_ID_ADPCM_IMA_RAD:
751 if (avctx->block_align > 0)
752 buf_size = FFMIN(buf_size, avctx->block_align);
753 nb_samples = (buf_size - 4 * ch) * 2 / ch;
755 case AV_CODEC_ID_ADPCM_IMA_WAV:
757 int bsize = ff_adpcm_ima_block_sizes[avctx->bits_per_coded_sample - 2];
758 int bsamples = ff_adpcm_ima_block_samples[avctx->bits_per_coded_sample - 2];
759 if (avctx->block_align > 0)
760 buf_size = FFMIN(buf_size, avctx->block_align);
761 if (buf_size < 4 * ch)
762 return AVERROR_INVALIDDATA;
763 nb_samples = 1 + (buf_size - 4 * ch) / (bsize * ch) * bsamples;
766 case AV_CODEC_ID_ADPCM_MS:
767 if (avctx->block_align > 0)
768 buf_size = FFMIN(buf_size, avctx->block_align);
769 nb_samples = (buf_size - 6 * ch) * 2 / ch;
771 case AV_CODEC_ID_ADPCM_MTAF:
772 if (avctx->block_align > 0)
773 buf_size = FFMIN(buf_size, avctx->block_align);
774 nb_samples = (buf_size - 16 * (ch / 2)) * 2 / ch;
776 case AV_CODEC_ID_ADPCM_SBPRO_2:
777 case AV_CODEC_ID_ADPCM_SBPRO_3:
778 case AV_CODEC_ID_ADPCM_SBPRO_4:
780 int samples_per_byte;
781 switch (avctx->codec->id) {
782 case AV_CODEC_ID_ADPCM_SBPRO_2: samples_per_byte = 4; break;
783 case AV_CODEC_ID_ADPCM_SBPRO_3: samples_per_byte = 3; break;
784 case AV_CODEC_ID_ADPCM_SBPRO_4: samples_per_byte = 2; break;
786 if (!s->status[0].step_index) {
788 return AVERROR_INVALIDDATA;
792 nb_samples += buf_size * samples_per_byte / ch;
795 case AV_CODEC_ID_ADPCM_SWF:
797 int buf_bits = buf_size * 8 - 2;
798 int nbits = (bytestream2_get_byte(gb) >> 6) + 2;
799 int block_hdr_size = 22 * ch;
800 int block_size = block_hdr_size + nbits * ch * 4095;
801 int nblocks = buf_bits / block_size;
802 int bits_left = buf_bits - nblocks * block_size;
803 nb_samples = nblocks * 4096;
804 if (bits_left >= block_hdr_size)
805 nb_samples += 1 + (bits_left - block_hdr_size) / (nbits * ch);
808 case AV_CODEC_ID_ADPCM_THP:
809 case AV_CODEC_ID_ADPCM_THP_LE:
810 if (avctx->extradata) {
811 nb_samples = buf_size * 14 / (8 * ch);
814 has_coded_samples = 1;
815 bytestream2_skip(gb, 4); // channel size
816 *coded_samples = (avctx->codec->id == AV_CODEC_ID_ADPCM_THP_LE) ?
817 bytestream2_get_le32(gb) :
818 bytestream2_get_be32(gb);
819 buf_size -= 8 + 36 * ch;
821 nb_samples = buf_size / 8 * 14;
822 if (buf_size % 8 > 1)
823 nb_samples += (buf_size % 8 - 1) * 2;
824 *approx_nb_samples = 1;
826 case AV_CODEC_ID_ADPCM_AFC:
827 nb_samples = buf_size / (9 * ch) * 16;
829 case AV_CODEC_ID_ADPCM_XA:
830 nb_samples = (buf_size / 128) * 224 / ch;
832 case AV_CODEC_ID_ADPCM_DTK:
833 case AV_CODEC_ID_ADPCM_PSX:
834 nb_samples = buf_size / (16 * ch) * 28;
836 case AV_CODEC_ID_ADPCM_ZORK:
837 nb_samples = buf_size / ch;
841 /* validate coded sample count */
842 if (has_coded_samples && (*coded_samples <= 0 || *coded_samples > nb_samples))
843 return AVERROR_INVALIDDATA;
848 static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
849 int *got_frame_ptr, AVPacket *avpkt)
851 AVFrame *frame = data;
852 const uint8_t *buf = avpkt->data;
853 int buf_size = avpkt->size;
854 ADPCMDecodeContext *c = avctx->priv_data;
855 ADPCMChannelStatus *cs;
856 int n, m, channel, i;
861 int nb_samples, coded_samples, approx_nb_samples, ret;
864 bytestream2_init(&gb, buf, buf_size);
865 nb_samples = get_nb_samples(avctx, &gb, buf_size, &coded_samples, &approx_nb_samples);
866 if (nb_samples <= 0) {
867 av_log(avctx, AV_LOG_ERROR, "invalid number of samples in packet\n");
868 return AVERROR_INVALIDDATA;
871 /* get output buffer */
872 frame->nb_samples = nb_samples;
873 if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
875 samples = (int16_t *)frame->data[0];
876 samples_p = (int16_t **)frame->extended_data;
878 /* use coded_samples when applicable */
879 /* it is always <= nb_samples, so the output buffer will be large enough */
881 if (!approx_nb_samples && coded_samples != nb_samples)
882 av_log(avctx, AV_LOG_WARNING, "mismatch in coded sample count\n");
883 frame->nb_samples = nb_samples = coded_samples;
886 st = avctx->channels == 2 ? 1 : 0;
888 switch(avctx->codec->id) {
889 case AV_CODEC_ID_ADPCM_IMA_QT:
890 /* In QuickTime, IMA is encoded by chunks of 34 bytes (=64 samples).
891 Channel data is interleaved per-chunk. */
892 for (channel = 0; channel < avctx->channels; channel++) {
895 cs = &(c->status[channel]);
896 /* (pppppp) (piiiiiii) */
898 /* Bits 15-7 are the _top_ 9 bits of the 16-bit initial predictor value */
899 predictor = sign_extend(bytestream2_get_be16u(&gb), 16);
900 step_index = predictor & 0x7F;
903 if (cs->step_index == step_index) {
904 int diff = predictor - cs->predictor;
911 cs->step_index = step_index;
912 cs->predictor = predictor;
915 if (cs->step_index > 88u){
916 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
917 channel, cs->step_index);
918 return AVERROR_INVALIDDATA;
921 samples = samples_p[channel];
923 for (m = 0; m < 64; m += 2) {
924 int byte = bytestream2_get_byteu(&gb);
925 samples[m ] = adpcm_ima_qt_expand_nibble(cs, byte & 0x0F, 3);
926 samples[m + 1] = adpcm_ima_qt_expand_nibble(cs, byte >> 4 , 3);
930 case AV_CODEC_ID_ADPCM_IMA_WAV:
931 for(i=0; i<avctx->channels; i++){
932 cs = &(c->status[i]);
933 cs->predictor = samples_p[i][0] = sign_extend(bytestream2_get_le16u(&gb), 16);
935 cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
936 if (cs->step_index > 88u){
937 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
939 return AVERROR_INVALIDDATA;
943 if (avctx->bits_per_coded_sample != 4) {
944 int samples_per_block = ff_adpcm_ima_block_samples[avctx->bits_per_coded_sample - 2];
945 int block_size = ff_adpcm_ima_block_sizes[avctx->bits_per_coded_sample - 2];
946 uint8_t temp[20 + AV_INPUT_BUFFER_PADDING_SIZE] = { 0 };
949 for (n = 0; n < (nb_samples - 1) / samples_per_block; n++) {
950 for (i = 0; i < avctx->channels; i++) {
954 samples = &samples_p[i][1 + n * samples_per_block];
955 for (j = 0; j < block_size; j++) {
956 temp[j] = buf[4 * avctx->channels + block_size * n * avctx->channels +
957 (j % 4) + (j / 4) * (avctx->channels * 4) + i * 4];
959 ret = init_get_bits8(&g, (const uint8_t *)&temp, block_size);
962 for (m = 0; m < samples_per_block; m++) {
963 samples[m] = adpcm_ima_wav_expand_nibble(cs, &g,
964 avctx->bits_per_coded_sample);
968 bytestream2_skip(&gb, avctx->block_align - avctx->channels * 4);
970 for (n = 0; n < (nb_samples - 1) / 8; n++) {
971 for (i = 0; i < avctx->channels; i++) {
973 samples = &samples_p[i][1 + n * 8];
974 for (m = 0; m < 8; m += 2) {
975 int v = bytestream2_get_byteu(&gb);
976 samples[m ] = adpcm_ima_expand_nibble(cs, v & 0x0F, 3);
977 samples[m + 1] = adpcm_ima_expand_nibble(cs, v >> 4 , 3);
983 case AV_CODEC_ID_ADPCM_4XM:
984 for (i = 0; i < avctx->channels; i++)
985 c->status[i].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
987 for (i = 0; i < avctx->channels; i++) {
988 c->status[i].step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
989 if (c->status[i].step_index > 88u) {
990 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
991 i, c->status[i].step_index);
992 return AVERROR_INVALIDDATA;
996 for (i = 0; i < avctx->channels; i++) {
997 samples = (int16_t *)frame->data[i];
999 for (n = nb_samples >> 1; n > 0; n--) {
1000 int v = bytestream2_get_byteu(&gb);
1001 *samples++ = adpcm_ima_expand_nibble(cs, v & 0x0F, 4);
1002 *samples++ = adpcm_ima_expand_nibble(cs, v >> 4 , 4);
1006 case AV_CODEC_ID_ADPCM_AGM:
1007 for (i = 0; i < avctx->channels; i++)
1008 c->status[i].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
1009 for (i = 0; i < avctx->channels; i++)
1010 c->status[i].step = sign_extend(bytestream2_get_le16u(&gb), 16);
1012 for (n = 0; n < nb_samples >> (1 - st); n++) {
1013 int v = bytestream2_get_byteu(&gb);
1014 *samples++ = adpcm_agm_expand_nibble(&c->status[0], v & 0xF);
1015 *samples++ = adpcm_agm_expand_nibble(&c->status[st], v >> 4 );
1018 case AV_CODEC_ID_ADPCM_MS:
1020 int block_predictor;
1022 if (avctx->channels > 2) {
1023 for (channel = 0; channel < avctx->channels; channel++) {
1024 samples = samples_p[channel];
1025 block_predictor = bytestream2_get_byteu(&gb);
1026 if (block_predictor > 6) {
1027 av_log(avctx, AV_LOG_ERROR, "ERROR: block_predictor[%d] = %d\n",
1028 channel, block_predictor);
1029 return AVERROR_INVALIDDATA;
1031 c->status[channel].coeff1 = ff_adpcm_AdaptCoeff1[block_predictor];
1032 c->status[channel].coeff2 = ff_adpcm_AdaptCoeff2[block_predictor];
1033 c->status[channel].idelta = sign_extend(bytestream2_get_le16u(&gb), 16);
1034 c->status[channel].sample1 = sign_extend(bytestream2_get_le16u(&gb), 16);
1035 c->status[channel].sample2 = sign_extend(bytestream2_get_le16u(&gb), 16);
1036 *samples++ = c->status[channel].sample2;
1037 *samples++ = c->status[channel].sample1;
1038 for(n = (nb_samples - 2) >> 1; n > 0; n--) {
1039 int byte = bytestream2_get_byteu(&gb);
1040 *samples++ = adpcm_ms_expand_nibble(&c->status[channel], byte >> 4 );
1041 *samples++ = adpcm_ms_expand_nibble(&c->status[channel], byte & 0x0F);
1045 block_predictor = bytestream2_get_byteu(&gb);
1046 if (block_predictor > 6) {
1047 av_log(avctx, AV_LOG_ERROR, "ERROR: block_predictor[0] = %d\n",
1049 return AVERROR_INVALIDDATA;
1051 c->status[0].coeff1 = ff_adpcm_AdaptCoeff1[block_predictor];
1052 c->status[0].coeff2 = ff_adpcm_AdaptCoeff2[block_predictor];
1054 block_predictor = bytestream2_get_byteu(&gb);
1055 if (block_predictor > 6) {
1056 av_log(avctx, AV_LOG_ERROR, "ERROR: block_predictor[1] = %d\n",
1058 return AVERROR_INVALIDDATA;
1060 c->status[1].coeff1 = ff_adpcm_AdaptCoeff1[block_predictor];
1061 c->status[1].coeff2 = ff_adpcm_AdaptCoeff2[block_predictor];
1063 c->status[0].idelta = sign_extend(bytestream2_get_le16u(&gb), 16);
1065 c->status[1].idelta = sign_extend(bytestream2_get_le16u(&gb), 16);
1068 c->status[0].sample1 = sign_extend(bytestream2_get_le16u(&gb), 16);
1069 if (st) c->status[1].sample1 = sign_extend(bytestream2_get_le16u(&gb), 16);
1070 c->status[0].sample2 = sign_extend(bytestream2_get_le16u(&gb), 16);
1071 if (st) c->status[1].sample2 = sign_extend(bytestream2_get_le16u(&gb), 16);
1073 *samples++ = c->status[0].sample2;
1074 if (st) *samples++ = c->status[1].sample2;
1075 *samples++ = c->status[0].sample1;
1076 if (st) *samples++ = c->status[1].sample1;
1077 for(n = (nb_samples - 2) >> (1 - st); n > 0; n--) {
1078 int byte = bytestream2_get_byteu(&gb);
1079 *samples++ = adpcm_ms_expand_nibble(&c->status[0 ], byte >> 4 );
1080 *samples++ = adpcm_ms_expand_nibble(&c->status[st], byte & 0x0F);
1085 case AV_CODEC_ID_ADPCM_MTAF:
1086 for (channel = 0; channel < avctx->channels; channel+=2) {
1087 bytestream2_skipu(&gb, 4);
1088 c->status[channel ].step = bytestream2_get_le16u(&gb) & 0x1f;
1089 c->status[channel + 1].step = bytestream2_get_le16u(&gb) & 0x1f;
1090 c->status[channel ].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
1091 bytestream2_skipu(&gb, 2);
1092 c->status[channel + 1].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
1093 bytestream2_skipu(&gb, 2);
1094 for (n = 0; n < nb_samples; n+=2) {
1095 int v = bytestream2_get_byteu(&gb);
1096 samples_p[channel][n ] = adpcm_mtaf_expand_nibble(&c->status[channel], v & 0x0F);
1097 samples_p[channel][n + 1] = adpcm_mtaf_expand_nibble(&c->status[channel], v >> 4 );
1099 for (n = 0; n < nb_samples; n+=2) {
1100 int v = bytestream2_get_byteu(&gb);
1101 samples_p[channel + 1][n ] = adpcm_mtaf_expand_nibble(&c->status[channel + 1], v & 0x0F);
1102 samples_p[channel + 1][n + 1] = adpcm_mtaf_expand_nibble(&c->status[channel + 1], v >> 4 );
1106 case AV_CODEC_ID_ADPCM_IMA_DK4:
1107 for (channel = 0; channel < avctx->channels; channel++) {
1108 cs = &c->status[channel];
1109 cs->predictor = *samples++ = sign_extend(bytestream2_get_le16u(&gb), 16);
1110 cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
1111 if (cs->step_index > 88u){
1112 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
1113 channel, cs->step_index);
1114 return AVERROR_INVALIDDATA;
1117 for (n = (nb_samples - 1) >> (1 - st); n > 0; n--) {
1118 int v = bytestream2_get_byteu(&gb);
1119 *samples++ = adpcm_ima_expand_nibble(&c->status[0 ], v >> 4 , 3);
1120 *samples++ = adpcm_ima_expand_nibble(&c->status[st], v & 0x0F, 3);
1123 case AV_CODEC_ID_ADPCM_IMA_DK3:
1127 int decode_top_nibble_next = 0;
1129 const int16_t *samples_end = samples + avctx->channels * nb_samples;
1131 bytestream2_skipu(&gb, 10);
1132 c->status[0].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
1133 c->status[1].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
1134 c->status[0].step_index = bytestream2_get_byteu(&gb);
1135 c->status[1].step_index = bytestream2_get_byteu(&gb);
1136 if (c->status[0].step_index > 88u || c->status[1].step_index > 88u){
1137 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i/%i\n",
1138 c->status[0].step_index, c->status[1].step_index);
1139 return AVERROR_INVALIDDATA;
1141 /* sign extend the predictors */
1142 diff_channel = c->status[1].predictor;
1144 /* DK3 ADPCM support macro */
1145 #define DK3_GET_NEXT_NIBBLE() \
1146 if (decode_top_nibble_next) { \
1147 nibble = last_byte >> 4; \
1148 decode_top_nibble_next = 0; \
1150 last_byte = bytestream2_get_byteu(&gb); \
1151 nibble = last_byte & 0x0F; \
1152 decode_top_nibble_next = 1; \
1155 while (samples < samples_end) {
1157 /* for this algorithm, c->status[0] is the sum channel and
1158 * c->status[1] is the diff channel */
1160 /* process the first predictor of the sum channel */
1161 DK3_GET_NEXT_NIBBLE();
1162 adpcm_ima_expand_nibble(&c->status[0], nibble, 3);
1164 /* process the diff channel predictor */
1165 DK3_GET_NEXT_NIBBLE();
1166 adpcm_ima_expand_nibble(&c->status[1], nibble, 3);
1168 /* process the first pair of stereo PCM samples */
1169 diff_channel = (diff_channel + c->status[1].predictor) / 2;
1170 *samples++ = c->status[0].predictor + c->status[1].predictor;
1171 *samples++ = c->status[0].predictor - c->status[1].predictor;
1173 /* process the second predictor of the sum channel */
1174 DK3_GET_NEXT_NIBBLE();
1175 adpcm_ima_expand_nibble(&c->status[0], nibble, 3);
1177 /* process the second pair of stereo PCM samples */
1178 diff_channel = (diff_channel + c->status[1].predictor) / 2;
1179 *samples++ = c->status[0].predictor + c->status[1].predictor;
1180 *samples++ = c->status[0].predictor - c->status[1].predictor;
1183 if ((bytestream2_tell(&gb) & 1))
1184 bytestream2_skip(&gb, 1);
1187 case AV_CODEC_ID_ADPCM_IMA_ISS:
1188 for (channel = 0; channel < avctx->channels; channel++) {
1189 cs = &c->status[channel];
1190 cs->predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
1191 cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
1192 if (cs->step_index > 88u){
1193 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
1194 channel, cs->step_index);
1195 return AVERROR_INVALIDDATA;
1199 for (n = nb_samples >> (1 - st); n > 0; n--) {
1201 int v = bytestream2_get_byteu(&gb);
1202 /* nibbles are swapped for mono */
1210 *samples++ = adpcm_ima_expand_nibble(&c->status[0 ], v1, 3);
1211 *samples++ = adpcm_ima_expand_nibble(&c->status[st], v2, 3);
1214 case AV_CODEC_ID_ADPCM_IMA_DAT4:
1215 for (channel = 0; channel < avctx->channels; channel++) {
1216 cs = &c->status[channel];
1217 samples = samples_p[channel];
1218 bytestream2_skip(&gb, 4);
1219 for (n = 0; n < nb_samples; n += 2) {
1220 int v = bytestream2_get_byteu(&gb);
1221 *samples++ = adpcm_ima_expand_nibble(cs, v >> 4 , 3);
1222 *samples++ = adpcm_ima_expand_nibble(cs, v & 0x0F, 3);
1226 case AV_CODEC_ID_ADPCM_IMA_APC:
1227 while (bytestream2_get_bytes_left(&gb) > 0) {
1228 int v = bytestream2_get_byteu(&gb);
1229 *samples++ = adpcm_ima_expand_nibble(&c->status[0], v >> 4 , 3);
1230 *samples++ = adpcm_ima_expand_nibble(&c->status[st], v & 0x0F, 3);
1233 case AV_CODEC_ID_ADPCM_IMA_SSI:
1234 while (bytestream2_get_bytes_left(&gb) > 0) {
1235 int v = bytestream2_get_byteu(&gb);
1236 *samples++ = adpcm_ima_qt_expand_nibble(&c->status[0], v >> 4 , 3);
1237 *samples++ = adpcm_ima_qt_expand_nibble(&c->status[st], v & 0x0F, 3);
1240 case AV_CODEC_ID_ADPCM_IMA_APM:
1241 for (n = nb_samples / 2; n > 0; n--) {
1242 for (channel = 0; channel < avctx->channels; channel++) {
1243 int v = bytestream2_get_byteu(&gb);
1244 *samples++ = adpcm_ima_qt_expand_nibble(&c->status[channel], v >> 4 , 3);
1245 samples[st] = adpcm_ima_qt_expand_nibble(&c->status[channel], v & 0x0F, 3);
1247 samples += avctx->channels;
1250 case AV_CODEC_ID_ADPCM_IMA_OKI:
1251 while (bytestream2_get_bytes_left(&gb) > 0) {
1252 int v = bytestream2_get_byteu(&gb);
1253 *samples++ = adpcm_ima_oki_expand_nibble(&c->status[0], v >> 4 );
1254 *samples++ = adpcm_ima_oki_expand_nibble(&c->status[st], v & 0x0F);
1257 case AV_CODEC_ID_ADPCM_IMA_RAD:
1258 for (channel = 0; channel < avctx->channels; channel++) {
1259 cs = &c->status[channel];
1260 cs->step_index = sign_extend(bytestream2_get_le16u(&gb), 16);
1261 cs->predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
1262 if (cs->step_index > 88u){
1263 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
1264 channel, cs->step_index);
1265 return AVERROR_INVALIDDATA;
1268 for (n = 0; n < nb_samples / 2; n++) {
1271 byte[0] = bytestream2_get_byteu(&gb);
1273 byte[1] = bytestream2_get_byteu(&gb);
1274 for(channel = 0; channel < avctx->channels; channel++) {
1275 *samples++ = adpcm_ima_expand_nibble(&c->status[channel], byte[channel] & 0x0F, 3);
1277 for(channel = 0; channel < avctx->channels; channel++) {
1278 *samples++ = adpcm_ima_expand_nibble(&c->status[channel], byte[channel] >> 4 , 3);
1282 case AV_CODEC_ID_ADPCM_IMA_WS:
1283 if (c->vqa_version == 3) {
1284 for (channel = 0; channel < avctx->channels; channel++) {
1285 int16_t *smp = samples_p[channel];
1287 for (n = nb_samples / 2; n > 0; n--) {
1288 int v = bytestream2_get_byteu(&gb);
1289 *smp++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
1290 *smp++ = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
1294 for (n = nb_samples / 2; n > 0; n--) {
1295 for (channel = 0; channel < avctx->channels; channel++) {
1296 int v = bytestream2_get_byteu(&gb);
1297 *samples++ = adpcm_ima_expand_nibble(&c->status[channel], v >> 4 , 3);
1298 samples[st] = adpcm_ima_expand_nibble(&c->status[channel], v & 0x0F, 3);
1300 samples += avctx->channels;
1303 bytestream2_seek(&gb, 0, SEEK_END);
1305 case AV_CODEC_ID_ADPCM_XA:
1307 int16_t *out0 = samples_p[0];
1308 int16_t *out1 = samples_p[1];
1309 int samples_per_block = 28 * (3 - avctx->channels) * 4;
1310 int sample_offset = 0;
1311 int bytes_remaining;
1312 while (bytestream2_get_bytes_left(&gb) >= 128) {
1313 if ((ret = xa_decode(avctx, out0, out1, buf + bytestream2_tell(&gb),
1314 &c->status[0], &c->status[1],
1315 avctx->channels, sample_offset)) < 0)
1317 bytestream2_skipu(&gb, 128);
1318 sample_offset += samples_per_block;
1320 /* Less than a full block of data left, e.g. when reading from
1321 * 2324 byte per sector XA; the remainder is padding */
1322 bytes_remaining = bytestream2_get_bytes_left(&gb);
1323 if (bytes_remaining > 0) {
1324 bytestream2_skip(&gb, bytes_remaining);
1328 case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
1329 for (i=0; i<=st; i++) {
1330 c->status[i].step_index = bytestream2_get_le32u(&gb);
1331 if (c->status[i].step_index > 88u) {
1332 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index[%d] = %i\n",
1333 i, c->status[i].step_index);
1334 return AVERROR_INVALIDDATA;
1337 for (i=0; i<=st; i++) {
1338 c->status[i].predictor = bytestream2_get_le32u(&gb);
1339 if (FFABS((int64_t)c->status[i].predictor) > (1<<16))
1340 return AVERROR_INVALIDDATA;
1343 for (n = nb_samples >> (1 - st); n > 0; n--) {
1344 int byte = bytestream2_get_byteu(&gb);
1345 *samples++ = adpcm_ima_expand_nibble(&c->status[0], byte >> 4, 3);
1346 *samples++ = adpcm_ima_expand_nibble(&c->status[st], byte & 0x0F, 3);
1349 case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
1350 for (n = nb_samples >> (1 - st); n > 0; n--) {
1351 int byte = bytestream2_get_byteu(&gb);
1352 *samples++ = adpcm_ima_expand_nibble(&c->status[0], byte >> 4, 6);
1353 *samples++ = adpcm_ima_expand_nibble(&c->status[st], byte & 0x0F, 6);
1356 case AV_CODEC_ID_ADPCM_EA:
1358 int previous_left_sample, previous_right_sample;
1359 int current_left_sample, current_right_sample;
1360 int next_left_sample, next_right_sample;
1361 int coeff1l, coeff2l, coeff1r, coeff2r;
1362 int shift_left, shift_right;
1364 /* Each EA ADPCM frame has a 12-byte header followed by 30-byte pieces,
1365 each coding 28 stereo samples. */
1367 if(avctx->channels != 2)
1368 return AVERROR_INVALIDDATA;
1370 current_left_sample = sign_extend(bytestream2_get_le16u(&gb), 16);
1371 previous_left_sample = sign_extend(bytestream2_get_le16u(&gb), 16);
1372 current_right_sample = sign_extend(bytestream2_get_le16u(&gb), 16);
1373 previous_right_sample = sign_extend(bytestream2_get_le16u(&gb), 16);
1375 for (count1 = 0; count1 < nb_samples / 28; count1++) {
1376 int byte = bytestream2_get_byteu(&gb);
1377 coeff1l = ea_adpcm_table[ byte >> 4 ];
1378 coeff2l = ea_adpcm_table[(byte >> 4 ) + 4];
1379 coeff1r = ea_adpcm_table[ byte & 0x0F];
1380 coeff2r = ea_adpcm_table[(byte & 0x0F) + 4];
1382 byte = bytestream2_get_byteu(&gb);
1383 shift_left = 20 - (byte >> 4);
1384 shift_right = 20 - (byte & 0x0F);
1386 for (count2 = 0; count2 < 28; count2++) {
1387 byte = bytestream2_get_byteu(&gb);
1388 next_left_sample = sign_extend(byte >> 4, 4) * (1 << shift_left);
1389 next_right_sample = sign_extend(byte, 4) * (1 << shift_right);
1391 next_left_sample = (next_left_sample +
1392 (current_left_sample * coeff1l) +
1393 (previous_left_sample * coeff2l) + 0x80) >> 8;
1394 next_right_sample = (next_right_sample +
1395 (current_right_sample * coeff1r) +
1396 (previous_right_sample * coeff2r) + 0x80) >> 8;
1398 previous_left_sample = current_left_sample;
1399 current_left_sample = av_clip_int16(next_left_sample);
1400 previous_right_sample = current_right_sample;
1401 current_right_sample = av_clip_int16(next_right_sample);
1402 *samples++ = current_left_sample;
1403 *samples++ = current_right_sample;
1407 bytestream2_skip(&gb, 2); // Skip terminating 0x0000
1411 case AV_CODEC_ID_ADPCM_EA_MAXIS_XA:
1413 int coeff[2][2], shift[2];
1415 for(channel = 0; channel < avctx->channels; channel++) {
1416 int byte = bytestream2_get_byteu(&gb);
1418 coeff[channel][i] = ea_adpcm_table[(byte >> 4) + 4*i];
1419 shift[channel] = 20 - (byte & 0x0F);
1421 for (count1 = 0; count1 < nb_samples / 2; count1++) {
1424 byte[0] = bytestream2_get_byteu(&gb);
1425 if (st) byte[1] = bytestream2_get_byteu(&gb);
1426 for(i = 4; i >= 0; i-=4) { /* Pairwise samples LL RR (st) or LL LL (mono) */
1427 for(channel = 0; channel < avctx->channels; channel++) {
1428 int sample = sign_extend(byte[channel] >> i, 4) * (1 << shift[channel]);
1430 c->status[channel].sample1 * coeff[channel][0] +
1431 c->status[channel].sample2 * coeff[channel][1] + 0x80) >> 8;
1432 c->status[channel].sample2 = c->status[channel].sample1;
1433 c->status[channel].sample1 = av_clip_int16(sample);
1434 *samples++ = c->status[channel].sample1;
1438 bytestream2_seek(&gb, 0, SEEK_END);
1441 case AV_CODEC_ID_ADPCM_EA_R1:
1442 case AV_CODEC_ID_ADPCM_EA_R2:
1443 case AV_CODEC_ID_ADPCM_EA_R3: {
1444 /* channel numbering
1446 4chan: 0=fl, 1=rl, 2=fr, 3=rr
1447 6chan: 0=fl, 1=c, 2=fr, 3=rl, 4=rr, 5=sub */
1448 const int big_endian = avctx->codec->id == AV_CODEC_ID_ADPCM_EA_R3;
1449 int previous_sample, current_sample, next_sample;
1452 unsigned int channel;
1457 for (channel=0; channel<avctx->channels; channel++)
1458 offsets[channel] = (big_endian ? bytestream2_get_be32(&gb) :
1459 bytestream2_get_le32(&gb)) +
1460 (avctx->channels + 1) * 4;
1462 for (channel=0; channel<avctx->channels; channel++) {
1463 bytestream2_seek(&gb, offsets[channel], SEEK_SET);
1464 samplesC = samples_p[channel];
1466 if (avctx->codec->id == AV_CODEC_ID_ADPCM_EA_R1) {
1467 current_sample = sign_extend(bytestream2_get_le16(&gb), 16);
1468 previous_sample = sign_extend(bytestream2_get_le16(&gb), 16);
1470 current_sample = c->status[channel].predictor;
1471 previous_sample = c->status[channel].prev_sample;
1474 for (count1 = 0; count1 < nb_samples / 28; count1++) {
1475 int byte = bytestream2_get_byte(&gb);
1476 if (byte == 0xEE) { /* only seen in R2 and R3 */
1477 current_sample = sign_extend(bytestream2_get_be16(&gb), 16);
1478 previous_sample = sign_extend(bytestream2_get_be16(&gb), 16);
1480 for (count2=0; count2<28; count2++)
1481 *samplesC++ = sign_extend(bytestream2_get_be16(&gb), 16);
1483 coeff1 = ea_adpcm_table[ byte >> 4 ];
1484 coeff2 = ea_adpcm_table[(byte >> 4) + 4];
1485 shift = 20 - (byte & 0x0F);
1487 for (count2=0; count2<28; count2++) {
1489 next_sample = (unsigned)sign_extend(byte, 4) << shift;
1491 byte = bytestream2_get_byte(&gb);
1492 next_sample = (unsigned)sign_extend(byte >> 4, 4) << shift;
1495 next_sample += (current_sample * coeff1) +
1496 (previous_sample * coeff2);
1497 next_sample = av_clip_int16(next_sample >> 8);
1499 previous_sample = current_sample;
1500 current_sample = next_sample;
1501 *samplesC++ = current_sample;
1507 } else if (count != count1) {
1508 av_log(avctx, AV_LOG_WARNING, "per-channel sample count mismatch\n");
1509 count = FFMAX(count, count1);
1512 if (avctx->codec->id != AV_CODEC_ID_ADPCM_EA_R1) {
1513 c->status[channel].predictor = current_sample;
1514 c->status[channel].prev_sample = previous_sample;
1518 frame->nb_samples = count * 28;
1519 bytestream2_seek(&gb, 0, SEEK_END);
1522 case AV_CODEC_ID_ADPCM_EA_XAS:
1523 for (channel=0; channel<avctx->channels; channel++) {
1524 int coeff[2][4], shift[4];
1525 int16_t *s = samples_p[channel];
1526 for (n = 0; n < 4; n++, s += 32) {
1527 int val = sign_extend(bytestream2_get_le16u(&gb), 16);
1529 coeff[i][n] = ea_adpcm_table[(val&0x0F)+4*i];
1532 val = sign_extend(bytestream2_get_le16u(&gb), 16);
1533 shift[n] = 20 - (val & 0x0F);
1537 for (m=2; m<32; m+=2) {
1538 s = &samples_p[channel][m];
1539 for (n = 0; n < 4; n++, s += 32) {
1541 int byte = bytestream2_get_byteu(&gb);
1543 level = sign_extend(byte >> 4, 4) * (1 << shift[n]);
1544 pred = s[-1] * coeff[0][n] + s[-2] * coeff[1][n];
1545 s[0] = av_clip_int16((level + pred + 0x80) >> 8);
1547 level = sign_extend(byte, 4) * (1 << shift[n]);
1548 pred = s[0] * coeff[0][n] + s[-1] * coeff[1][n];
1549 s[1] = av_clip_int16((level + pred + 0x80) >> 8);
1554 case AV_CODEC_ID_ADPCM_IMA_AMV:
1555 c->status[0].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
1556 c->status[0].step_index = bytestream2_get_byteu(&gb);
1557 bytestream2_skipu(&gb, 5);
1558 if (c->status[0].step_index > 88u) {
1559 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i\n",
1560 c->status[0].step_index);
1561 return AVERROR_INVALIDDATA;
1564 for (n = nb_samples >> (1 - st); n > 0; n--) {
1565 int v = bytestream2_get_byteu(&gb);
1567 *samples++ = adpcm_ima_expand_nibble(&c->status[0], v >> 4, 3);
1568 *samples++ = adpcm_ima_expand_nibble(&c->status[0], v & 0xf, 3);
1571 case AV_CODEC_ID_ADPCM_IMA_SMJPEG:
1572 for (i = 0; i < avctx->channels; i++) {
1573 c->status[i].predictor = sign_extend(bytestream2_get_be16u(&gb), 16);
1574 c->status[i].step_index = bytestream2_get_byteu(&gb);
1575 bytestream2_skipu(&gb, 1);
1576 if (c->status[i].step_index > 88u) {
1577 av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i\n",
1578 c->status[i].step_index);
1579 return AVERROR_INVALIDDATA;
1583 for (n = nb_samples >> (1 - st); n > 0; n--) {
1584 int v = bytestream2_get_byteu(&gb);
1586 *samples++ = adpcm_ima_qt_expand_nibble(&c->status[0 ], v >> 4, 3);
1587 *samples++ = adpcm_ima_qt_expand_nibble(&c->status[st], v & 0xf, 3);
1590 case AV_CODEC_ID_ADPCM_CT:
1591 for (n = nb_samples >> (1 - st); n > 0; n--) {
1592 int v = bytestream2_get_byteu(&gb);
1593 *samples++ = adpcm_ct_expand_nibble(&c->status[0 ], v >> 4 );
1594 *samples++ = adpcm_ct_expand_nibble(&c->status[st], v & 0x0F);
1597 case AV_CODEC_ID_ADPCM_SBPRO_4:
1598 case AV_CODEC_ID_ADPCM_SBPRO_3:
1599 case AV_CODEC_ID_ADPCM_SBPRO_2:
1600 if (!c->status[0].step_index) {
1601 /* the first byte is a raw sample */
1602 *samples++ = 128 * (bytestream2_get_byteu(&gb) - 0x80);
1604 *samples++ = 128 * (bytestream2_get_byteu(&gb) - 0x80);
1605 c->status[0].step_index = 1;
1608 if (avctx->codec->id == AV_CODEC_ID_ADPCM_SBPRO_4) {
1609 for (n = nb_samples >> (1 - st); n > 0; n--) {
1610 int byte = bytestream2_get_byteu(&gb);
1611 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1613 *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],
1616 } else if (avctx->codec->id == AV_CODEC_ID_ADPCM_SBPRO_3) {
1617 for (n = (nb_samples<<st) / 3; n > 0; n--) {
1618 int byte = bytestream2_get_byteu(&gb);
1619 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1621 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1622 (byte >> 2) & 0x07, 3, 0);
1623 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1627 for (n = nb_samples >> (2 - st); n > 0; n--) {
1628 int byte = bytestream2_get_byteu(&gb);
1629 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1631 *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],
1632 (byte >> 4) & 0x03, 2, 2);
1633 *samples++ = adpcm_sbpro_expand_nibble(&c->status[0],
1634 (byte >> 2) & 0x03, 2, 2);
1635 *samples++ = adpcm_sbpro_expand_nibble(&c->status[st],
1640 case AV_CODEC_ID_ADPCM_SWF:
1641 adpcm_swf_decode(avctx, buf, buf_size, samples);
1642 bytestream2_seek(&gb, 0, SEEK_END);
1644 case AV_CODEC_ID_ADPCM_YAMAHA:
1645 for (n = nb_samples >> (1 - st); n > 0; n--) {
1646 int v = bytestream2_get_byteu(&gb);
1647 *samples++ = adpcm_yamaha_expand_nibble(&c->status[0 ], v & 0x0F);
1648 *samples++ = adpcm_yamaha_expand_nibble(&c->status[st], v >> 4 );
1651 case AV_CODEC_ID_ADPCM_AICA:
1652 if (!c->has_status) {
1653 for (channel = 0; channel < avctx->channels; channel++)
1654 c->status[channel].step = 0;
1657 for (channel = 0; channel < avctx->channels; channel++) {
1658 samples = samples_p[channel];
1659 for (n = nb_samples >> 1; n > 0; n--) {
1660 int v = bytestream2_get_byteu(&gb);
1661 *samples++ = adpcm_yamaha_expand_nibble(&c->status[channel], v & 0x0F);
1662 *samples++ = adpcm_yamaha_expand_nibble(&c->status[channel], v >> 4 );
1666 case AV_CODEC_ID_ADPCM_AFC:
1668 int samples_per_block;
1671 if (avctx->extradata && avctx->extradata_size == 1 && avctx->extradata[0]) {
1672 samples_per_block = avctx->extradata[0] / 16;
1673 blocks = nb_samples / avctx->extradata[0];
1675 samples_per_block = nb_samples / 16;
1679 for (m = 0; m < blocks; m++) {
1680 for (channel = 0; channel < avctx->channels; channel++) {
1681 int prev1 = c->status[channel].sample1;
1682 int prev2 = c->status[channel].sample2;
1684 samples = samples_p[channel] + m * 16;
1685 /* Read in every sample for this channel. */
1686 for (i = 0; i < samples_per_block; i++) {
1687 int byte = bytestream2_get_byteu(&gb);
1688 int scale = 1 << (byte >> 4);
1689 int index = byte & 0xf;
1690 int factor1 = ff_adpcm_afc_coeffs[0][index];
1691 int factor2 = ff_adpcm_afc_coeffs[1][index];
1693 /* Decode 16 samples. */
1694 for (n = 0; n < 16; n++) {
1698 sampledat = sign_extend(byte, 4);
1700 byte = bytestream2_get_byteu(&gb);
1701 sampledat = sign_extend(byte >> 4, 4);
1704 sampledat = ((prev1 * factor1 + prev2 * factor2) >> 11) +
1706 *samples = av_clip_int16(sampledat);
1712 c->status[channel].sample1 = prev1;
1713 c->status[channel].sample2 = prev2;
1716 bytestream2_seek(&gb, 0, SEEK_END);
1719 case AV_CODEC_ID_ADPCM_THP:
1720 case AV_CODEC_ID_ADPCM_THP_LE:
1725 #define THP_GET16(g) \
1727 avctx->codec->id == AV_CODEC_ID_ADPCM_THP_LE ? \
1728 bytestream2_get_le16u(&(g)) : \
1729 bytestream2_get_be16u(&(g)), 16)
1731 if (avctx->extradata) {
1733 if (avctx->extradata_size < 32 * avctx->channels) {
1734 av_log(avctx, AV_LOG_ERROR, "Missing coeff table\n");
1735 return AVERROR_INVALIDDATA;
1738 bytestream2_init(&tb, avctx->extradata, avctx->extradata_size);
1739 for (i = 0; i < avctx->channels; i++)
1740 for (n = 0; n < 16; n++)
1741 table[i][n] = THP_GET16(tb);
1743 for (i = 0; i < avctx->channels; i++)
1744 for (n = 0; n < 16; n++)
1745 table[i][n] = THP_GET16(gb);
1747 if (!c->has_status) {
1748 /* Initialize the previous sample. */
1749 for (i = 0; i < avctx->channels; i++) {
1750 c->status[i].sample1 = THP_GET16(gb);
1751 c->status[i].sample2 = THP_GET16(gb);
1755 bytestream2_skip(&gb, avctx->channels * 4);
1759 for (ch = 0; ch < avctx->channels; ch++) {
1760 samples = samples_p[ch];
1762 /* Read in every sample for this channel. */
1763 for (i = 0; i < (nb_samples + 13) / 14; i++) {
1764 int byte = bytestream2_get_byteu(&gb);
1765 int index = (byte >> 4) & 7;
1766 unsigned int exp = byte & 0x0F;
1767 int factor1 = table[ch][index * 2];
1768 int factor2 = table[ch][index * 2 + 1];
1770 /* Decode 14 samples. */
1771 for (n = 0; n < 14 && (i * 14 + n < nb_samples); n++) {
1775 sampledat = sign_extend(byte, 4);
1777 byte = bytestream2_get_byteu(&gb);
1778 sampledat = sign_extend(byte >> 4, 4);
1781 sampledat = ((c->status[ch].sample1 * factor1
1782 + c->status[ch].sample2 * factor2) >> 11) + sampledat * (1 << exp);
1783 *samples = av_clip_int16(sampledat);
1784 c->status[ch].sample2 = c->status[ch].sample1;
1785 c->status[ch].sample1 = *samples++;
1791 case AV_CODEC_ID_ADPCM_DTK:
1792 for (channel = 0; channel < avctx->channels; channel++) {
1793 samples = samples_p[channel];
1795 /* Read in every sample for this channel. */
1796 for (i = 0; i < nb_samples / 28; i++) {
1799 bytestream2_skipu(&gb, 1);
1800 header = bytestream2_get_byteu(&gb);
1801 bytestream2_skipu(&gb, 3 - channel);
1803 /* Decode 28 samples. */
1804 for (n = 0; n < 28; n++) {
1805 int32_t sampledat, prev;
1807 switch (header >> 4) {
1809 prev = (c->status[channel].sample1 * 0x3c);
1812 prev = (c->status[channel].sample1 * 0x73) - (c->status[channel].sample2 * 0x34);
1815 prev = (c->status[channel].sample1 * 0x62) - (c->status[channel].sample2 * 0x37);
1821 prev = av_clip_intp2((prev + 0x20) >> 6, 21);
1823 byte = bytestream2_get_byteu(&gb);
1825 sampledat = sign_extend(byte, 4);
1827 sampledat = sign_extend(byte >> 4, 4);
1829 sampledat = ((sampledat * (1 << 12)) >> (header & 0xf)) * (1 << 6) + prev;
1830 *samples++ = av_clip_int16(sampledat >> 6);
1831 c->status[channel].sample2 = c->status[channel].sample1;
1832 c->status[channel].sample1 = sampledat;
1836 bytestream2_seek(&gb, 0, SEEK_SET);
1839 case AV_CODEC_ID_ADPCM_PSX:
1840 for (channel = 0; channel < avctx->channels; channel++) {
1841 samples = samples_p[channel];
1843 /* Read in every sample for this channel. */
1844 for (i = 0; i < nb_samples / 28; i++) {
1845 int filter, shift, flag, byte;
1847 filter = bytestream2_get_byteu(&gb);
1848 shift = filter & 0xf;
1849 filter = filter >> 4;
1850 if (filter >= FF_ARRAY_ELEMS(xa_adpcm_table))
1851 return AVERROR_INVALIDDATA;
1852 flag = bytestream2_get_byteu(&gb);
1854 /* Decode 28 samples. */
1855 for (n = 0; n < 28; n++) {
1856 int sample = 0, scale;
1860 scale = sign_extend(byte >> 4, 4);
1862 byte = bytestream2_get_byteu(&gb);
1863 scale = sign_extend(byte, 4);
1866 scale = scale << 12;
1867 sample = (int)((scale >> shift) + (c->status[channel].sample1 * xa_adpcm_table[filter][0] + c->status[channel].sample2 * xa_adpcm_table[filter][1]) / 64);
1869 *samples++ = av_clip_int16(sample);
1870 c->status[channel].sample2 = c->status[channel].sample1;
1871 c->status[channel].sample1 = sample;
1876 case AV_CODEC_ID_ADPCM_ARGO:
1878 * The format of each block:
1879 * uint8_t left_control;
1880 * uint4_t left_samples[nb_samples];
1881 * ---- and if stereo ----
1882 * uint8_t right_control;
1883 * uint4_t right_samples[nb_samples];
1885 * Format of the control byte:
1886 * MSB [SSSSDRRR] LSB
1887 * S = (Shift Amount - 2)
1891 * Each block relies on the previous two samples of each channel.
1892 * They should be 0 initially.
1894 for (channel = 0; channel < avctx->channels; channel++) {
1897 samples = samples_p[channel];
1898 cs = c->status + channel;
1900 /* Get the control byte and decode the samples, 2 at a time. */
1901 control = bytestream2_get_byteu(&gb);
1902 shift = (control >> 4) + 2;
1904 for (n = 0; n < nb_samples / 2; n++) {
1905 int sample = bytestream2_get_byteu(&gb);
1906 *samples++ = adpcm_argo_expand_nibble(cs, sign_extend(sample >> 4, 4), control, shift);
1907 *samples++ = adpcm_argo_expand_nibble(cs, sign_extend(sample >> 0, 4), control, shift);
1911 case AV_CODEC_ID_ADPCM_ZORK:
1912 if (!c->has_status) {
1913 for (channel = 0; channel < avctx->channels; channel++) {
1914 c->status[channel].predictor = 0;
1915 c->status[channel].step_index = 0;
1919 for (n = 0; n < nb_samples * avctx->channels; n++) {
1920 int v = bytestream2_get_byteu(&gb);
1921 *samples++ = adpcm_zork_expand_nibble(&c->status[n % avctx->channels], v);
1925 av_assert0(0); // unsupported codec_id should not happen
1928 if (avpkt->size && bytestream2_tell(&gb) == 0) {
1929 av_log(avctx, AV_LOG_ERROR, "Nothing consumed\n");
1930 return AVERROR_INVALIDDATA;
1935 if (avpkt->size < bytestream2_tell(&gb)) {
1936 av_log(avctx, AV_LOG_ERROR, "Overread of %d < %d\n", avpkt->size, bytestream2_tell(&gb));
1940 return bytestream2_tell(&gb);
1943 static void adpcm_flush(AVCodecContext *avctx)
1945 ADPCMDecodeContext *c = avctx->priv_data;
1950 static const enum AVSampleFormat sample_fmts_s16[] = { AV_SAMPLE_FMT_S16,
1951 AV_SAMPLE_FMT_NONE };
1952 static const enum AVSampleFormat sample_fmts_s16p[] = { AV_SAMPLE_FMT_S16P,
1953 AV_SAMPLE_FMT_NONE };
1954 static const enum AVSampleFormat sample_fmts_both[] = { AV_SAMPLE_FMT_S16,
1956 AV_SAMPLE_FMT_NONE };
1958 #define ADPCM_DECODER(id_, sample_fmts_, name_, long_name_) \
1959 AVCodec ff_ ## name_ ## _decoder = { \
1961 .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
1962 .type = AVMEDIA_TYPE_AUDIO, \
1964 .priv_data_size = sizeof(ADPCMDecodeContext), \
1965 .init = adpcm_decode_init, \
1966 .decode = adpcm_decode_frame, \
1967 .flush = adpcm_flush, \
1968 .capabilities = AV_CODEC_CAP_DR1, \
1969 .sample_fmts = sample_fmts_, \
1972 /* Note: Do not forget to add new entries to the Makefile as well. */
1973 ADPCM_DECODER(AV_CODEC_ID_ADPCM_4XM, sample_fmts_s16p, adpcm_4xm, "ADPCM 4X Movie");
1974 ADPCM_DECODER(AV_CODEC_ID_ADPCM_AFC, sample_fmts_s16p, adpcm_afc, "ADPCM Nintendo Gamecube AFC");
1975 ADPCM_DECODER(AV_CODEC_ID_ADPCM_AGM, sample_fmts_s16, adpcm_agm, "ADPCM AmuseGraphics Movie");
1976 ADPCM_DECODER(AV_CODEC_ID_ADPCM_AICA, sample_fmts_s16p, adpcm_aica, "ADPCM Yamaha AICA");
1977 ADPCM_DECODER(AV_CODEC_ID_ADPCM_ARGO, sample_fmts_s16p, adpcm_argo, "ADPCM Argonaut Games");
1978 ADPCM_DECODER(AV_CODEC_ID_ADPCM_CT, sample_fmts_s16, adpcm_ct, "ADPCM Creative Technology");
1979 ADPCM_DECODER(AV_CODEC_ID_ADPCM_DTK, sample_fmts_s16p, adpcm_dtk, "ADPCM Nintendo Gamecube DTK");
1980 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA, sample_fmts_s16, adpcm_ea, "ADPCM Electronic Arts");
1981 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_MAXIS_XA, sample_fmts_s16, adpcm_ea_maxis_xa, "ADPCM Electronic Arts Maxis CDROM XA");
1982 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R1, sample_fmts_s16p, adpcm_ea_r1, "ADPCM Electronic Arts R1");
1983 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R2, sample_fmts_s16p, adpcm_ea_r2, "ADPCM Electronic Arts R2");
1984 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_R3, sample_fmts_s16p, adpcm_ea_r3, "ADPCM Electronic Arts R3");
1985 ADPCM_DECODER(AV_CODEC_ID_ADPCM_EA_XAS, sample_fmts_s16p, adpcm_ea_xas, "ADPCM Electronic Arts XAS");
1986 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_AMV, sample_fmts_s16, adpcm_ima_amv, "ADPCM IMA AMV");
1987 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_APC, sample_fmts_s16, adpcm_ima_apc, "ADPCM IMA CRYO APC");
1988 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_APM, sample_fmts_s16, adpcm_ima_apm, "ADPCM IMA Ubisoft APM");
1989 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DAT4, sample_fmts_s16, adpcm_ima_dat4, "ADPCM IMA Eurocom DAT4");
1990 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DK3, sample_fmts_s16, adpcm_ima_dk3, "ADPCM IMA Duck DK3");
1991 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_DK4, sample_fmts_s16, adpcm_ima_dk4, "ADPCM IMA Duck DK4");
1992 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_EA_EACS, sample_fmts_s16, adpcm_ima_ea_eacs, "ADPCM IMA Electronic Arts EACS");
1993 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_EA_SEAD, sample_fmts_s16, adpcm_ima_ea_sead, "ADPCM IMA Electronic Arts SEAD");
1994 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_ISS, sample_fmts_s16, adpcm_ima_iss, "ADPCM IMA Funcom ISS");
1995 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_OKI, sample_fmts_s16, adpcm_ima_oki, "ADPCM IMA Dialogic OKI");
1996 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_QT, sample_fmts_s16p, adpcm_ima_qt, "ADPCM IMA QuickTime");
1997 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_RAD, sample_fmts_s16, adpcm_ima_rad, "ADPCM IMA Radical");
1998 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_SSI, sample_fmts_s16, adpcm_ima_ssi, "ADPCM IMA Simon & Schuster Interactive");
1999 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_SMJPEG, sample_fmts_s16, adpcm_ima_smjpeg, "ADPCM IMA Loki SDL MJPEG");
2000 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WAV, sample_fmts_s16p, adpcm_ima_wav, "ADPCM IMA WAV");
2001 ADPCM_DECODER(AV_CODEC_ID_ADPCM_IMA_WS, sample_fmts_both, adpcm_ima_ws, "ADPCM IMA Westwood");
2002 ADPCM_DECODER(AV_CODEC_ID_ADPCM_MS, sample_fmts_both, adpcm_ms, "ADPCM Microsoft");
2003 ADPCM_DECODER(AV_CODEC_ID_ADPCM_MTAF, sample_fmts_s16p, adpcm_mtaf, "ADPCM MTAF");
2004 ADPCM_DECODER(AV_CODEC_ID_ADPCM_PSX, sample_fmts_s16p, adpcm_psx, "ADPCM Playstation");
2005 ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_2, sample_fmts_s16, adpcm_sbpro_2, "ADPCM Sound Blaster Pro 2-bit");
2006 ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_3, sample_fmts_s16, adpcm_sbpro_3, "ADPCM Sound Blaster Pro 2.6-bit");
2007 ADPCM_DECODER(AV_CODEC_ID_ADPCM_SBPRO_4, sample_fmts_s16, adpcm_sbpro_4, "ADPCM Sound Blaster Pro 4-bit");
2008 ADPCM_DECODER(AV_CODEC_ID_ADPCM_SWF, sample_fmts_s16, adpcm_swf, "ADPCM Shockwave Flash");
2009 ADPCM_DECODER(AV_CODEC_ID_ADPCM_THP_LE, sample_fmts_s16p, adpcm_thp_le, "ADPCM Nintendo THP (little-endian)");
2010 ADPCM_DECODER(AV_CODEC_ID_ADPCM_THP, sample_fmts_s16p, adpcm_thp, "ADPCM Nintendo THP");
2011 ADPCM_DECODER(AV_CODEC_ID_ADPCM_XA, sample_fmts_s16p, adpcm_xa, "ADPCM CDROM XA");
2012 ADPCM_DECODER(AV_CODEC_ID_ADPCM_YAMAHA, sample_fmts_s16, adpcm_yamaha, "ADPCM Yamaha");
2013 ADPCM_DECODER(AV_CODEC_ID_ADPCM_ZORK, sample_fmts_s16, adpcm_zork, "ADPCM Zork");