1 /*
2 * PCM codecs
3 * Copyright (c) 2001 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * PCM codecs
25 */
26
27 #include "config.h"
28 #include "libavutil/attributes.h"
29 #include "libavutil/float_dsp.h"
30 #include "libavutil/thread.h"
31 #include "avcodec.h"
32 #include "bytestream.h"
33 #include "internal.h"
34 #include "mathops.h"
35 #include "pcm_tablegen.h"
36
pcm_encode_init(AVCodecContext * avctx)37 static av_cold int pcm_encode_init(AVCodecContext *avctx)
38 {
39 avctx->frame_size = 0;
40 #if !CONFIG_HARDCODED_TABLES
41 switch (avctx->codec->id) {
42 #define INIT_ONCE(id, name) \
43 case AV_CODEC_ID_PCM_ ## id: \
44 if (CONFIG_PCM_ ## id ## _ENCODER) { \
45 static AVOnce init_static_once = AV_ONCE_INIT; \
46 ff_thread_once(&init_static_once, pcm_ ## name ## _tableinit); \
47 } \
48 break
49 INIT_ONCE(ALAW, alaw);
50 INIT_ONCE(MULAW, ulaw);
51 INIT_ONCE(VIDC, vidc);
52 default:
53 break;
54 }
55 #endif
56
57 avctx->bits_per_coded_sample = av_get_bits_per_sample(avctx->codec->id);
58 avctx->block_align = avctx->channels * avctx->bits_per_coded_sample / 8;
59 avctx->bit_rate = avctx->block_align * 8LL * avctx->sample_rate;
60
61 return 0;
62 }
63
64 /**
65 * Write PCM samples macro
66 * @param type Datatype of native machine format
67 * @param endian bytestream_put_xxx() suffix
68 * @param src Source pointer (variable name)
69 * @param dst Destination pointer (variable name)
70 * @param n Total number of samples (variable name)
71 * @param shift Bitshift (bits)
72 * @param offset Sample value offset
73 */
74 #define ENCODE(type, endian, src, dst, n, shift, offset) \
75 samples_ ## type = (const type *) src; \
76 for (; n > 0; n--) { \
77 register type v = (*samples_ ## type++ >> shift) + offset; \
78 bytestream_put_ ## endian(&dst, v); \
79 }
80
81 #define ENCODE_PLANAR(type, endian, dst, n, shift, offset) \
82 n /= avctx->channels; \
83 for (c = 0; c < avctx->channels; c++) { \
84 int i; \
85 samples_ ## type = (const type *) frame->extended_data[c]; \
86 for (i = n; i > 0; i--) { \
87 register type v = (*samples_ ## type++ >> shift) + offset; \
88 bytestream_put_ ## endian(&dst, v); \
89 } \
90 }
91
pcm_encode_frame(AVCodecContext * avctx,AVPacket * avpkt,const AVFrame * frame,int * got_packet_ptr)92 static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
93 const AVFrame *frame, int *got_packet_ptr)
94 {
95 int n, c, sample_size, v, ret;
96 const short *samples;
97 unsigned char *dst;
98 const uint8_t *samples_uint8_t;
99 const int16_t *samples_int16_t;
100 const int32_t *samples_int32_t;
101 const int64_t *samples_int64_t;
102 const uint16_t *samples_uint16_t;
103 const uint32_t *samples_uint32_t;
104
105 sample_size = av_get_bits_per_sample(avctx->codec->id) / 8;
106 n = frame->nb_samples * avctx->channels;
107 samples = (const short *)frame->data[0];
108
109 if ((ret = ff_alloc_packet2(avctx, avpkt, n * sample_size, n * sample_size)) < 0)
110 return ret;
111 dst = avpkt->data;
112
113 switch (avctx->codec->id) {
114 case AV_CODEC_ID_PCM_U32LE:
115 ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000)
116 break;
117 case AV_CODEC_ID_PCM_U32BE:
118 ENCODE(uint32_t, be32, samples, dst, n, 0, 0x80000000)
119 break;
120 case AV_CODEC_ID_PCM_S24LE:
121 ENCODE(int32_t, le24, samples, dst, n, 8, 0)
122 break;
123 case AV_CODEC_ID_PCM_S24LE_PLANAR:
124 ENCODE_PLANAR(int32_t, le24, dst, n, 8, 0)
125 break;
126 case AV_CODEC_ID_PCM_S24BE:
127 ENCODE(int32_t, be24, samples, dst, n, 8, 0)
128 break;
129 case AV_CODEC_ID_PCM_U24LE:
130 ENCODE(uint32_t, le24, samples, dst, n, 8, 0x800000)
131 break;
132 case AV_CODEC_ID_PCM_U24BE:
133 ENCODE(uint32_t, be24, samples, dst, n, 8, 0x800000)
134 break;
135 case AV_CODEC_ID_PCM_S24DAUD:
136 for (; n > 0; n--) {
137 uint32_t tmp = ff_reverse[(*samples >> 8) & 0xff] +
138 (ff_reverse[*samples & 0xff] << 8);
139 tmp <<= 4; // sync flags would go here
140 bytestream_put_be24(&dst, tmp);
141 samples++;
142 }
143 break;
144 case AV_CODEC_ID_PCM_U16LE:
145 ENCODE(uint16_t, le16, samples, dst, n, 0, 0x8000)
146 break;
147 case AV_CODEC_ID_PCM_U16BE:
148 ENCODE(uint16_t, be16, samples, dst, n, 0, 0x8000)
149 break;
150 case AV_CODEC_ID_PCM_S8:
151 ENCODE(uint8_t, byte, samples, dst, n, 0, -128)
152 break;
153 case AV_CODEC_ID_PCM_S8_PLANAR:
154 ENCODE_PLANAR(uint8_t, byte, dst, n, 0, -128)
155 break;
156 #if HAVE_BIGENDIAN
157 case AV_CODEC_ID_PCM_S64LE:
158 case AV_CODEC_ID_PCM_F64LE:
159 ENCODE(int64_t, le64, samples, dst, n, 0, 0)
160 break;
161 case AV_CODEC_ID_PCM_S32LE:
162 case AV_CODEC_ID_PCM_F32LE:
163 ENCODE(int32_t, le32, samples, dst, n, 0, 0)
164 break;
165 case AV_CODEC_ID_PCM_S32LE_PLANAR:
166 ENCODE_PLANAR(int32_t, le32, dst, n, 0, 0)
167 break;
168 case AV_CODEC_ID_PCM_S16LE:
169 ENCODE(int16_t, le16, samples, dst, n, 0, 0)
170 break;
171 case AV_CODEC_ID_PCM_S16LE_PLANAR:
172 ENCODE_PLANAR(int16_t, le16, dst, n, 0, 0)
173 break;
174 case AV_CODEC_ID_PCM_F64BE:
175 case AV_CODEC_ID_PCM_F32BE:
176 case AV_CODEC_ID_PCM_S64BE:
177 case AV_CODEC_ID_PCM_S32BE:
178 case AV_CODEC_ID_PCM_S16BE:
179 #else
180 case AV_CODEC_ID_PCM_S64BE:
181 case AV_CODEC_ID_PCM_F64BE:
182 ENCODE(int64_t, be64, samples, dst, n, 0, 0)
183 break;
184 case AV_CODEC_ID_PCM_F32BE:
185 case AV_CODEC_ID_PCM_S32BE:
186 ENCODE(int32_t, be32, samples, dst, n, 0, 0)
187 break;
188 case AV_CODEC_ID_PCM_S16BE:
189 ENCODE(int16_t, be16, samples, dst, n, 0, 0)
190 break;
191 case AV_CODEC_ID_PCM_S16BE_PLANAR:
192 ENCODE_PLANAR(int16_t, be16, dst, n, 0, 0)
193 break;
194 case AV_CODEC_ID_PCM_F64LE:
195 case AV_CODEC_ID_PCM_F32LE:
196 case AV_CODEC_ID_PCM_S64LE:
197 case AV_CODEC_ID_PCM_S32LE:
198 case AV_CODEC_ID_PCM_S16LE:
199 #endif /* HAVE_BIGENDIAN */
200 case AV_CODEC_ID_PCM_U8:
201 memcpy(dst, samples, n * sample_size);
202 break;
203 #if HAVE_BIGENDIAN
204 case AV_CODEC_ID_PCM_S16BE_PLANAR:
205 #else
206 case AV_CODEC_ID_PCM_S16LE_PLANAR:
207 case AV_CODEC_ID_PCM_S32LE_PLANAR:
208 #endif /* HAVE_BIGENDIAN */
209 n /= avctx->channels;
210 for (c = 0; c < avctx->channels; c++) {
211 const uint8_t *src = frame->extended_data[c];
212 bytestream_put_buffer(&dst, src, n * sample_size);
213 }
214 break;
215 case AV_CODEC_ID_PCM_ALAW:
216 for (; n > 0; n--) {
217 v = *samples++;
218 *dst++ = linear_to_alaw[(v + 32768) >> 2];
219 }
220 break;
221 case AV_CODEC_ID_PCM_MULAW:
222 for (; n > 0; n--) {
223 v = *samples++;
224 *dst++ = linear_to_ulaw[(v + 32768) >> 2];
225 }
226 break;
227 case AV_CODEC_ID_PCM_VIDC:
228 for (; n > 0; n--) {
229 v = *samples++;
230 *dst++ = linear_to_vidc[(v + 32768) >> 2];
231 }
232 break;
233 default:
234 return -1;
235 }
236
237 *got_packet_ptr = 1;
238 return 0;
239 }
240
241 typedef struct PCMDecode {
242 short table[256];
243 void (*vector_fmul_scalar)(float *dst, const float *src, float mul,
244 int len);
245 float scale;
246 } PCMDecode;
247
pcm_decode_init(AVCodecContext * avctx)248 static av_cold int pcm_decode_init(AVCodecContext *avctx)
249 {
250 PCMDecode *s = avctx->priv_data;
251 AVFloatDSPContext *fdsp;
252 int i;
253
254 if (avctx->channels <= 0) {
255 av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n");
256 return AVERROR(EINVAL);
257 }
258
259 switch (avctx->codec_id) {
260 case AV_CODEC_ID_PCM_ALAW:
261 for (i = 0; i < 256; i++)
262 s->table[i] = alaw2linear(i);
263 break;
264 case AV_CODEC_ID_PCM_MULAW:
265 for (i = 0; i < 256; i++)
266 s->table[i] = ulaw2linear(i);
267 break;
268 case AV_CODEC_ID_PCM_VIDC:
269 for (i = 0; i < 256; i++)
270 s->table[i] = vidc2linear(i);
271 break;
272 case AV_CODEC_ID_PCM_F16LE:
273 case AV_CODEC_ID_PCM_F24LE:
274 if (avctx->bits_per_coded_sample < 1 || avctx->bits_per_coded_sample > 24)
275 return AVERROR_INVALIDDATA;
276
277 s->scale = 1. / (1 << (avctx->bits_per_coded_sample - 1));
278 fdsp = avpriv_float_dsp_alloc(0);
279 if (!fdsp)
280 return AVERROR(ENOMEM);
281 s->vector_fmul_scalar = fdsp->vector_fmul_scalar;
282 av_free(fdsp);
283 break;
284 default:
285 break;
286 }
287
288 avctx->sample_fmt = avctx->codec->sample_fmts[0];
289
290 if (avctx->sample_fmt == AV_SAMPLE_FMT_S32)
291 avctx->bits_per_raw_sample = av_get_bits_per_sample(avctx->codec_id);
292
293 return 0;
294 }
295
296 /**
297 * Read PCM samples macro
298 * @param size Data size of native machine format
299 * @param endian bytestream_get_xxx() endian suffix
300 * @param src Source pointer (variable name)
301 * @param dst Destination pointer (variable name)
302 * @param n Total number of samples (variable name)
303 * @param shift Bitshift (bits)
304 * @param offset Sample value offset
305 */
306 #define DECODE(size, endian, src, dst, n, shift, offset) \
307 for (; n > 0; n--) { \
308 uint ## size ## _t v = bytestream_get_ ## endian(&src); \
309 AV_WN ## size ## A(dst, (uint ## size ## _t)(v - offset) << shift); \
310 dst += size / 8; \
311 }
312
313 #define DECODE_PLANAR(size, endian, src, dst, n, shift, offset) \
314 n /= avctx->channels; \
315 for (c = 0; c < avctx->channels; c++) { \
316 int i; \
317 dst = frame->extended_data[c]; \
318 for (i = n; i > 0; i--) { \
319 uint ## size ## _t v = bytestream_get_ ## endian(&src); \
320 AV_WN ## size ## A(dst, (uint ## size ##_t)(v - offset) << shift); \
321 dst += size / 8; \
322 } \
323 }
324
pcm_decode_frame(AVCodecContext * avctx,void * data,int * got_frame_ptr,AVPacket * avpkt)325 static int pcm_decode_frame(AVCodecContext *avctx, void *data,
326 int *got_frame_ptr, AVPacket *avpkt)
327 {
328 const uint8_t *src = avpkt->data;
329 int buf_size = avpkt->size;
330 PCMDecode *s = avctx->priv_data;
331 AVFrame *frame = data;
332 int sample_size, c, n, ret, samples_per_block;
333 uint8_t *samples;
334 int32_t *dst_int32_t;
335
336 sample_size = av_get_bits_per_sample(avctx->codec_id) / 8;
337
338 /* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */
339 samples_per_block = 1;
340 if (avctx->codec_id == AV_CODEC_ID_PCM_LXF) {
341 /* we process 40-bit blocks per channel for LXF */
342 samples_per_block = 2;
343 sample_size = 5;
344 }
345
346 if (sample_size == 0) {
347 av_log(avctx, AV_LOG_ERROR, "Invalid sample_size\n");
348 return AVERROR(EINVAL);
349 }
350
351 if (avctx->channels == 0) {
352 av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
353 return AVERROR(EINVAL);
354 }
355
356 if (avctx->codec_id != avctx->codec->id) {
357 av_log(avctx, AV_LOG_ERROR, "codec ids mismatch\n");
358 return AVERROR(EINVAL);
359 }
360
361 n = avctx->channels * sample_size;
362
363 if (n && buf_size % n) {
364 if (buf_size < n) {
365 av_log(avctx, AV_LOG_ERROR,
366 "Invalid PCM packet, data has size %d but at least a size of %d was expected\n",
367 buf_size, n);
368 return AVERROR_INVALIDDATA;
369 } else
370 buf_size -= buf_size % n;
371 }
372
373 n = buf_size / sample_size;
374
375 /* get output buffer */
376 frame->nb_samples = n * samples_per_block / avctx->channels;
377 if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
378 return ret;
379 samples = frame->data[0];
380
381 switch (avctx->codec_id) {
382 case AV_CODEC_ID_PCM_U32LE:
383 DECODE(32, le32, src, samples, n, 0, 0x80000000)
384 break;
385 case AV_CODEC_ID_PCM_U32BE:
386 DECODE(32, be32, src, samples, n, 0, 0x80000000)
387 break;
388 case AV_CODEC_ID_PCM_S24LE:
389 DECODE(32, le24, src, samples, n, 8, 0)
390 break;
391 case AV_CODEC_ID_PCM_S24LE_PLANAR:
392 DECODE_PLANAR(32, le24, src, samples, n, 8, 0);
393 break;
394 case AV_CODEC_ID_PCM_S24BE:
395 DECODE(32, be24, src, samples, n, 8, 0)
396 break;
397 case AV_CODEC_ID_PCM_U24LE:
398 DECODE(32, le24, src, samples, n, 8, 0x800000)
399 break;
400 case AV_CODEC_ID_PCM_U24BE:
401 DECODE(32, be24, src, samples, n, 8, 0x800000)
402 break;
403 case AV_CODEC_ID_PCM_S24DAUD:
404 for (; n > 0; n--) {
405 uint32_t v = bytestream_get_be24(&src);
406 v >>= 4; // sync flags are here
407 AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] +
408 (ff_reverse[v & 0xff] << 8));
409 samples += 2;
410 }
411 break;
412 case AV_CODEC_ID_PCM_U16LE:
413 DECODE(16, le16, src, samples, n, 0, 0x8000)
414 break;
415 case AV_CODEC_ID_PCM_U16BE:
416 DECODE(16, be16, src, samples, n, 0, 0x8000)
417 break;
418 case AV_CODEC_ID_PCM_S8:
419 for (; n > 0; n--)
420 *samples++ = *src++ + 128;
421 break;
422 case AV_CODEC_ID_PCM_SGA:
423 for (; n > 0; n--) {
424 int sign = *src >> 7;
425 int magn = *src & 0x7f;
426 *samples++ = sign ? 128 - magn : 128 + magn;
427 src++;
428 }
429 break;
430 case AV_CODEC_ID_PCM_S8_PLANAR:
431 n /= avctx->channels;
432 for (c = 0; c < avctx->channels; c++) {
433 int i;
434 samples = frame->extended_data[c];
435 for (i = n; i > 0; i--)
436 *samples++ = *src++ + 128;
437 }
438 break;
439 #if HAVE_BIGENDIAN
440 case AV_CODEC_ID_PCM_S64LE:
441 case AV_CODEC_ID_PCM_F64LE:
442 DECODE(64, le64, src, samples, n, 0, 0)
443 break;
444 case AV_CODEC_ID_PCM_S32LE:
445 case AV_CODEC_ID_PCM_F32LE:
446 case AV_CODEC_ID_PCM_F24LE:
447 case AV_CODEC_ID_PCM_F16LE:
448 DECODE(32, le32, src, samples, n, 0, 0)
449 break;
450 case AV_CODEC_ID_PCM_S32LE_PLANAR:
451 DECODE_PLANAR(32, le32, src, samples, n, 0, 0);
452 break;
453 case AV_CODEC_ID_PCM_S16LE:
454 DECODE(16, le16, src, samples, n, 0, 0)
455 break;
456 case AV_CODEC_ID_PCM_S16LE_PLANAR:
457 DECODE_PLANAR(16, le16, src, samples, n, 0, 0);
458 break;
459 case AV_CODEC_ID_PCM_F64BE:
460 case AV_CODEC_ID_PCM_F32BE:
461 case AV_CODEC_ID_PCM_S64BE:
462 case AV_CODEC_ID_PCM_S32BE:
463 case AV_CODEC_ID_PCM_S16BE:
464 #else
465 case AV_CODEC_ID_PCM_S64BE:
466 case AV_CODEC_ID_PCM_F64BE:
467 DECODE(64, be64, src, samples, n, 0, 0)
468 break;
469 case AV_CODEC_ID_PCM_F32BE:
470 case AV_CODEC_ID_PCM_S32BE:
471 DECODE(32, be32, src, samples, n, 0, 0)
472 break;
473 case AV_CODEC_ID_PCM_S16BE:
474 DECODE(16, be16, src, samples, n, 0, 0)
475 break;
476 case AV_CODEC_ID_PCM_S16BE_PLANAR:
477 DECODE_PLANAR(16, be16, src, samples, n, 0, 0);
478 break;
479 case AV_CODEC_ID_PCM_F64LE:
480 case AV_CODEC_ID_PCM_F32LE:
481 case AV_CODEC_ID_PCM_F24LE:
482 case AV_CODEC_ID_PCM_F16LE:
483 case AV_CODEC_ID_PCM_S64LE:
484 case AV_CODEC_ID_PCM_S32LE:
485 case AV_CODEC_ID_PCM_S16LE:
486 #endif /* HAVE_BIGENDIAN */
487 case AV_CODEC_ID_PCM_U8:
488 memcpy(samples, src, n * sample_size);
489 break;
490 #if HAVE_BIGENDIAN
491 case AV_CODEC_ID_PCM_S16BE_PLANAR:
492 #else
493 case AV_CODEC_ID_PCM_S16LE_PLANAR:
494 case AV_CODEC_ID_PCM_S32LE_PLANAR:
495 #endif /* HAVE_BIGENDIAN */
496 n /= avctx->channels;
497 for (c = 0; c < avctx->channels; c++) {
498 samples = frame->extended_data[c];
499 bytestream_get_buffer(&src, samples, n * sample_size);
500 }
501 break;
502 case AV_CODEC_ID_PCM_ALAW:
503 case AV_CODEC_ID_PCM_MULAW:
504 case AV_CODEC_ID_PCM_VIDC:
505 for (; n > 0; n--) {
506 AV_WN16A(samples, s->table[*src++]);
507 samples += 2;
508 }
509 break;
510 case AV_CODEC_ID_PCM_LXF:
511 {
512 int i;
513 n /= avctx->channels;
514 for (c = 0; c < avctx->channels; c++) {
515 dst_int32_t = (int32_t *)frame->extended_data[c];
516 for (i = 0; i < n; i++) {
517 // extract low 20 bits and expand to 32 bits
518 *dst_int32_t++ = ((uint32_t)src[2]<<28) |
519 (src[1] << 20) |
520 (src[0] << 12) |
521 ((src[2] & 0x0F) << 8) |
522 src[1];
523 // extract high 20 bits and expand to 32 bits
524 *dst_int32_t++ = ((uint32_t)src[4]<<24) |
525 (src[3] << 16) |
526 ((src[2] & 0xF0) << 8) |
527 (src[4] << 4) |
528 (src[3] >> 4);
529 src += 5;
530 }
531 }
532 break;
533 }
534 default:
535 return -1;
536 }
537
538 if (avctx->codec_id == AV_CODEC_ID_PCM_F16LE ||
539 avctx->codec_id == AV_CODEC_ID_PCM_F24LE) {
540 s->vector_fmul_scalar((float *)frame->extended_data[0],
541 (const float *)frame->extended_data[0],
542 s->scale, FFALIGN(frame->nb_samples * avctx->channels, 4));
543 emms_c();
544 }
545
546 *got_frame_ptr = 1;
547
548 return buf_size;
549 }
550
551 #define PCM_ENCODER_0(id_, sample_fmt_, name_, long_name_)
552 #define PCM_ENCODER_1(id_, sample_fmt_, name_, long_name_) \
553 AVCodec ff_ ## name_ ## _encoder = { \
554 .name = #name_, \
555 .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
556 .type = AVMEDIA_TYPE_AUDIO, \
557 .id = AV_CODEC_ID_ ## id_, \
558 .init = pcm_encode_init, \
559 .encode2 = pcm_encode_frame, \
560 .capabilities = AV_CODEC_CAP_VARIABLE_FRAME_SIZE, \
561 .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
562 AV_SAMPLE_FMT_NONE }, \
563 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, \
564 }
565
566 #define PCM_ENCODER_2(cf, id, sample_fmt, name, long_name) \
567 PCM_ENCODER_ ## cf(id, sample_fmt, name, long_name)
568 #define PCM_ENCODER_3(cf, id, sample_fmt, name, long_name) \
569 PCM_ENCODER_2(cf, id, sample_fmt, name, long_name)
570 #define PCM_ENCODER(id, sample_fmt, name, long_name) \
571 PCM_ENCODER_3(CONFIG_ ## id ## _ENCODER, id, sample_fmt, name, long_name)
572
573 #define PCM_DECODER_0(id, sample_fmt, name, long_name)
574 #define PCM_DECODER_1(id_, sample_fmt_, name_, long_name_) \
575 AVCodec ff_ ## name_ ## _decoder = { \
576 .name = #name_, \
577 .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
578 .type = AVMEDIA_TYPE_AUDIO, \
579 .id = AV_CODEC_ID_ ## id_, \
580 .priv_data_size = sizeof(PCMDecode), \
581 .init = pcm_decode_init, \
582 .decode = pcm_decode_frame, \
583 .capabilities = AV_CODEC_CAP_DR1, \
584 .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \
585 AV_SAMPLE_FMT_NONE }, \
586 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, \
587 }
588
589 #define PCM_DECODER_2(cf, id, sample_fmt, name, long_name) \
590 PCM_DECODER_ ## cf(id, sample_fmt, name, long_name)
591 #define PCM_DECODER_3(cf, id, sample_fmt, name, long_name) \
592 PCM_DECODER_2(cf, id, sample_fmt, name, long_name)
593 #define PCM_DECODER(id, sample_fmt, name, long_name) \
594 PCM_DECODER_3(CONFIG_ ## id ## _DECODER, id, sample_fmt, name, long_name)
595
596 #define PCM_CODEC(id, sample_fmt_, name, long_name_) \
597 PCM_ENCODER(id, sample_fmt_, name, long_name_); \
598 PCM_DECODER(id, sample_fmt_, name, long_name_)
599
600 /* Note: Do not forget to add new entries to the Makefile as well. */
601 PCM_CODEC (PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law / G.711 A-law");
602 PCM_DECODER(PCM_F16LE, AV_SAMPLE_FMT_FLT, pcm_f16le, "PCM 16.8 floating point little-endian");
603 PCM_DECODER(PCM_F24LE, AV_SAMPLE_FMT_FLT, pcm_f24le, "PCM 24.0 floating point little-endian");
604 PCM_CODEC (PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian");
605 PCM_CODEC (PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian");
606 PCM_CODEC (PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian");
607 PCM_CODEC (PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian");
608 PCM_DECODER(PCM_LXF, AV_SAMPLE_FMT_S32P,pcm_lxf, "PCM signed 20-bit little-endian planar");
609 PCM_CODEC (PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law / G.711 mu-law");
610 PCM_CODEC (PCM_S8, AV_SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit");
611 PCM_CODEC (PCM_S8_PLANAR, AV_SAMPLE_FMT_U8P, pcm_s8_planar, "PCM signed 8-bit planar");
612 PCM_CODEC (PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian");
613 PCM_CODEC (PCM_S16BE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16be_planar, "PCM signed 16-bit big-endian planar");
614 PCM_CODEC (PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian");
615 PCM_CODEC (PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16le_planar, "PCM signed 16-bit little-endian planar");
616 PCM_CODEC (PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian");
617 PCM_CODEC (PCM_S24DAUD, AV_SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit");
618 PCM_CODEC (PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian");
619 PCM_CODEC (PCM_S24LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s24le_planar, "PCM signed 24-bit little-endian planar");
620 PCM_CODEC (PCM_S32BE, AV_SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian");
621 PCM_CODEC (PCM_S32LE, AV_SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian");
622 PCM_CODEC (PCM_S32LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s32le_planar, "PCM signed 32-bit little-endian planar");
623 PCM_CODEC (PCM_U8, AV_SAMPLE_FMT_U8, pcm_u8, "PCM unsigned 8-bit");
624 PCM_CODEC (PCM_U16BE, AV_SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian");
625 PCM_CODEC (PCM_U16LE, AV_SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian");
626 PCM_CODEC (PCM_U24BE, AV_SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian");
627 PCM_CODEC (PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian");
628 PCM_CODEC (PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian");
629 PCM_CODEC (PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian");
630 PCM_CODEC (PCM_S64BE, AV_SAMPLE_FMT_S64, pcm_s64be, "PCM signed 64-bit big-endian");
631 PCM_CODEC (PCM_S64LE, AV_SAMPLE_FMT_S64, pcm_s64le, "PCM signed 64-bit little-endian");
632 PCM_CODEC (PCM_VIDC, AV_SAMPLE_FMT_S16, pcm_vidc, "PCM Archimedes VIDC");
633 PCM_DECODER(PCM_SGA, AV_SAMPLE_FMT_U8, pcm_sga, "PCM SGA");
634