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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 "libavutil/attributes.h" | |
28 | #include "avcodec.h" | |
29 | #include "bytestream.h" | |
30 | #include "internal.h" | |
31 | #include "mathops.h" | |
32 | #include "pcm_tablegen.h" | |
33 | ||
34 | static av_cold int pcm_encode_init(AVCodecContext *avctx) | |
35 | { | |
36 | avctx->frame_size = 0; | |
37 | switch (avctx->codec->id) { | |
38 | case AV_CODEC_ID_PCM_ALAW: | |
39 | pcm_alaw_tableinit(); | |
40 | break; | |
41 | case AV_CODEC_ID_PCM_MULAW: | |
42 | pcm_ulaw_tableinit(); | |
43 | break; | |
44 | default: | |
45 | break; | |
46 | } | |
47 | ||
48 | avctx->bits_per_coded_sample = av_get_bits_per_sample(avctx->codec->id); | |
49 | avctx->block_align = avctx->channels * avctx->bits_per_coded_sample / 8; | |
50 | avctx->bit_rate = avctx->block_align * avctx->sample_rate * 8; | |
51 | ||
52 | return 0; | |
53 | } | |
54 | ||
55 | /** | |
56 | * Write PCM samples macro | |
57 | * @param type Datatype of native machine format | |
58 | * @param endian bytestream_put_xxx() suffix | |
59 | * @param src Source pointer (variable name) | |
60 | * @param dst Destination pointer (variable name) | |
61 | * @param n Total number of samples (variable name) | |
62 | * @param shift Bitshift (bits) | |
63 | * @param offset Sample value offset | |
64 | */ | |
65 | #define ENCODE(type, endian, src, dst, n, shift, offset) \ | |
66 | samples_ ## type = (const type *) src; \ | |
67 | for (; n > 0; n--) { \ | |
68 | register type v = (*samples_ ## type++ >> shift) + offset; \ | |
69 | bytestream_put_ ## endian(&dst, v); \ | |
70 | } | |
71 | ||
72 | #define ENCODE_PLANAR(type, endian, dst, n, shift, offset) \ | |
73 | n /= avctx->channels; \ | |
74 | for (c = 0; c < avctx->channels; c++) { \ | |
75 | int i; \ | |
76 | samples_ ## type = (const type *) frame->extended_data[c]; \ | |
77 | for (i = n; i > 0; i--) { \ | |
78 | register type v = (*samples_ ## type++ >> shift) + offset; \ | |
79 | bytestream_put_ ## endian(&dst, v); \ | |
80 | } \ | |
81 | } | |
82 | ||
83 | static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, | |
84 | const AVFrame *frame, int *got_packet_ptr) | |
85 | { | |
86 | int n, c, sample_size, v, ret; | |
87 | const short *samples; | |
88 | unsigned char *dst; | |
89 | const uint8_t *samples_uint8_t; | |
90 | const int16_t *samples_int16_t; | |
91 | const int32_t *samples_int32_t; | |
92 | const int64_t *samples_int64_t; | |
93 | const uint16_t *samples_uint16_t; | |
94 | const uint32_t *samples_uint32_t; | |
95 | ||
96 | sample_size = av_get_bits_per_sample(avctx->codec->id) / 8; | |
97 | n = frame->nb_samples * avctx->channels; | |
98 | samples = (const short *)frame->data[0]; | |
99 | ||
100 | if ((ret = ff_alloc_packet2(avctx, avpkt, n * sample_size)) < 0) | |
101 | return ret; | |
102 | dst = avpkt->data; | |
103 | ||
104 | switch (avctx->codec->id) { | |
105 | case AV_CODEC_ID_PCM_U32LE: | |
106 | ENCODE(uint32_t, le32, samples, dst, n, 0, 0x80000000) | |
107 | break; | |
108 | case AV_CODEC_ID_PCM_U32BE: | |
109 | ENCODE(uint32_t, be32, samples, dst, n, 0, 0x80000000) | |
110 | break; | |
111 | case AV_CODEC_ID_PCM_S24LE: | |
112 | ENCODE(int32_t, le24, samples, dst, n, 8, 0) | |
113 | break; | |
114 | case AV_CODEC_ID_PCM_S24LE_PLANAR: | |
115 | ENCODE_PLANAR(int32_t, le24, dst, n, 8, 0) | |
116 | break; | |
117 | case AV_CODEC_ID_PCM_S24BE: | |
118 | ENCODE(int32_t, be24, samples, dst, n, 8, 0) | |
119 | break; | |
120 | case AV_CODEC_ID_PCM_U24LE: | |
121 | ENCODE(uint32_t, le24, samples, dst, n, 8, 0x800000) | |
122 | break; | |
123 | case AV_CODEC_ID_PCM_U24BE: | |
124 | ENCODE(uint32_t, be24, samples, dst, n, 8, 0x800000) | |
125 | break; | |
126 | case AV_CODEC_ID_PCM_S24DAUD: | |
127 | for (; n > 0; n--) { | |
128 | uint32_t tmp = ff_reverse[(*samples >> 8) & 0xff] + | |
129 | (ff_reverse[*samples & 0xff] << 8); | |
130 | tmp <<= 4; // sync flags would go here | |
131 | bytestream_put_be24(&dst, tmp); | |
132 | samples++; | |
133 | } | |
134 | break; | |
135 | case AV_CODEC_ID_PCM_U16LE: | |
136 | ENCODE(uint16_t, le16, samples, dst, n, 0, 0x8000) | |
137 | break; | |
138 | case AV_CODEC_ID_PCM_U16BE: | |
139 | ENCODE(uint16_t, be16, samples, dst, n, 0, 0x8000) | |
140 | break; | |
141 | case AV_CODEC_ID_PCM_S8: | |
142 | ENCODE(uint8_t, byte, samples, dst, n, 0, -128) | |
143 | break; | |
144 | case AV_CODEC_ID_PCM_S8_PLANAR: | |
145 | ENCODE_PLANAR(uint8_t, byte, dst, n, 0, -128) | |
146 | break; | |
147 | #if HAVE_BIGENDIAN | |
148 | case AV_CODEC_ID_PCM_F64LE: | |
149 | ENCODE(int64_t, le64, samples, dst, n, 0, 0) | |
150 | break; | |
151 | case AV_CODEC_ID_PCM_S32LE: | |
152 | case AV_CODEC_ID_PCM_F32LE: | |
153 | ENCODE(int32_t, le32, samples, dst, n, 0, 0) | |
154 | break; | |
155 | case AV_CODEC_ID_PCM_S32LE_PLANAR: | |
156 | ENCODE_PLANAR(int32_t, le32, dst, n, 0, 0) | |
157 | break; | |
158 | case AV_CODEC_ID_PCM_S16LE: | |
159 | ENCODE(int16_t, le16, samples, dst, n, 0, 0) | |
160 | break; | |
161 | case AV_CODEC_ID_PCM_S16LE_PLANAR: | |
162 | ENCODE_PLANAR(int16_t, le16, dst, n, 0, 0) | |
163 | break; | |
164 | case AV_CODEC_ID_PCM_F64BE: | |
165 | case AV_CODEC_ID_PCM_F32BE: | |
166 | case AV_CODEC_ID_PCM_S32BE: | |
167 | case AV_CODEC_ID_PCM_S16BE: | |
168 | #else | |
169 | case AV_CODEC_ID_PCM_F64BE: | |
170 | ENCODE(int64_t, be64, samples, dst, n, 0, 0) | |
171 | break; | |
172 | case AV_CODEC_ID_PCM_F32BE: | |
173 | case AV_CODEC_ID_PCM_S32BE: | |
174 | ENCODE(int32_t, be32, samples, dst, n, 0, 0) | |
175 | break; | |
176 | case AV_CODEC_ID_PCM_S16BE: | |
177 | ENCODE(int16_t, be16, samples, dst, n, 0, 0) | |
178 | break; | |
179 | case AV_CODEC_ID_PCM_S16BE_PLANAR: | |
180 | ENCODE_PLANAR(int16_t, be16, dst, n, 0, 0) | |
181 | break; | |
182 | case AV_CODEC_ID_PCM_F64LE: | |
183 | case AV_CODEC_ID_PCM_F32LE: | |
184 | case AV_CODEC_ID_PCM_S32LE: | |
185 | case AV_CODEC_ID_PCM_S16LE: | |
186 | #endif /* HAVE_BIGENDIAN */ | |
187 | case AV_CODEC_ID_PCM_U8: | |
188 | memcpy(dst, samples, n * sample_size); | |
189 | break; | |
190 | #if HAVE_BIGENDIAN | |
191 | case AV_CODEC_ID_PCM_S16BE_PLANAR: | |
192 | #else | |
193 | case AV_CODEC_ID_PCM_S16LE_PLANAR: | |
194 | case AV_CODEC_ID_PCM_S32LE_PLANAR: | |
195 | #endif /* HAVE_BIGENDIAN */ | |
196 | n /= avctx->channels; | |
197 | for (c = 0; c < avctx->channels; c++) { | |
198 | const uint8_t *src = frame->extended_data[c]; | |
199 | bytestream_put_buffer(&dst, src, n * sample_size); | |
200 | } | |
201 | break; | |
202 | case AV_CODEC_ID_PCM_ALAW: | |
203 | for (; n > 0; n--) { | |
204 | v = *samples++; | |
205 | *dst++ = linear_to_alaw[(v + 32768) >> 2]; | |
206 | } | |
207 | break; | |
208 | case AV_CODEC_ID_PCM_MULAW: | |
209 | for (; n > 0; n--) { | |
210 | v = *samples++; | |
211 | *dst++ = linear_to_ulaw[(v + 32768) >> 2]; | |
212 | } | |
213 | break; | |
214 | default: | |
215 | return -1; | |
216 | } | |
217 | ||
218 | *got_packet_ptr = 1; | |
219 | return 0; | |
220 | } | |
221 | ||
222 | typedef struct PCMDecode { | |
223 | short table[256]; | |
224 | } PCMDecode; | |
225 | ||
226 | static av_cold int pcm_decode_init(AVCodecContext *avctx) | |
227 | { | |
228 | PCMDecode *s = avctx->priv_data; | |
229 | int i; | |
230 | ||
231 | if (avctx->channels <= 0) { | |
232 | av_log(avctx, AV_LOG_ERROR, "PCM channels out of bounds\n"); | |
233 | return AVERROR(EINVAL); | |
234 | } | |
235 | ||
236 | switch (avctx->codec_id) { | |
237 | case AV_CODEC_ID_PCM_ALAW: | |
238 | for (i = 0; i < 256; i++) | |
239 | s->table[i] = alaw2linear(i); | |
240 | break; | |
241 | case AV_CODEC_ID_PCM_MULAW: | |
242 | for (i = 0; i < 256; i++) | |
243 | s->table[i] = ulaw2linear(i); | |
244 | break; | |
245 | default: | |
246 | break; | |
247 | } | |
248 | ||
249 | avctx->sample_fmt = avctx->codec->sample_fmts[0]; | |
250 | ||
251 | if (avctx->sample_fmt == AV_SAMPLE_FMT_S32) | |
252 | avctx->bits_per_raw_sample = av_get_bits_per_sample(avctx->codec_id); | |
253 | ||
254 | return 0; | |
255 | } | |
256 | ||
257 | /** | |
258 | * Read PCM samples macro | |
259 | * @param size Data size of native machine format | |
260 | * @param endian bytestream_get_xxx() endian suffix | |
261 | * @param src Source pointer (variable name) | |
262 | * @param dst Destination pointer (variable name) | |
263 | * @param n Total number of samples (variable name) | |
264 | * @param shift Bitshift (bits) | |
265 | * @param offset Sample value offset | |
266 | */ | |
267 | #define DECODE(size, endian, src, dst, n, shift, offset) \ | |
268 | for (; n > 0; n--) { \ | |
269 | uint ## size ## _t v = bytestream_get_ ## endian(&src); \ | |
270 | AV_WN ## size ## A(dst, (v - offset) << shift); \ | |
271 | dst += size / 8; \ | |
272 | } | |
273 | ||
274 | #define DECODE_PLANAR(size, endian, src, dst, n, shift, offset) \ | |
275 | n /= avctx->channels; \ | |
276 | for (c = 0; c < avctx->channels; c++) { \ | |
277 | int i; \ | |
278 | dst = frame->extended_data[c]; \ | |
279 | for (i = n; i > 0; i--) { \ | |
280 | uint ## size ## _t v = bytestream_get_ ## endian(&src); \ | |
281 | AV_WN ## size ## A(dst, (v - offset) << shift); \ | |
282 | dst += size / 8; \ | |
283 | } \ | |
284 | } | |
285 | ||
286 | static int pcm_decode_frame(AVCodecContext *avctx, void *data, | |
287 | int *got_frame_ptr, AVPacket *avpkt) | |
288 | { | |
289 | const uint8_t *src = avpkt->data; | |
290 | int buf_size = avpkt->size; | |
291 | PCMDecode *s = avctx->priv_data; | |
292 | AVFrame *frame = data; | |
293 | int sample_size, c, n, ret, samples_per_block; | |
294 | uint8_t *samples; | |
295 | int32_t *dst_int32_t; | |
296 | ||
297 | sample_size = av_get_bits_per_sample(avctx->codec_id) / 8; | |
298 | ||
299 | /* av_get_bits_per_sample returns 0 for AV_CODEC_ID_PCM_DVD */ | |
300 | samples_per_block = 1; | |
301 | if (avctx->codec_id == AV_CODEC_ID_PCM_LXF) { | |
302 | /* we process 40-bit blocks per channel for LXF */ | |
303 | samples_per_block = 2; | |
304 | sample_size = 5; | |
305 | } | |
306 | ||
307 | if (sample_size == 0) { | |
308 | av_log(avctx, AV_LOG_ERROR, "Invalid sample_size\n"); | |
309 | return AVERROR(EINVAL); | |
310 | } | |
311 | ||
312 | if (avctx->channels == 0) { | |
313 | av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n"); | |
314 | return AVERROR(EINVAL); | |
315 | } | |
316 | ||
317 | if (avctx->codec_id != avctx->codec->id) { | |
318 | av_log(avctx, AV_LOG_ERROR, "codec ids mismatch\n"); | |
319 | return AVERROR(EINVAL); | |
320 | } | |
321 | ||
322 | n = avctx->channels * sample_size; | |
323 | ||
324 | if (n && buf_size % n) { | |
325 | if (buf_size < n) { | |
326 | av_log(avctx, AV_LOG_ERROR, | |
327 | "Invalid PCM packet, data has size %d but at least a size of %d was expected\n", | |
328 | buf_size, n); | |
329 | return AVERROR_INVALIDDATA; | |
330 | } else | |
331 | buf_size -= buf_size % n; | |
332 | } | |
333 | ||
334 | n = buf_size / sample_size; | |
335 | ||
336 | /* get output buffer */ | |
337 | frame->nb_samples = n * samples_per_block / avctx->channels; | |
338 | if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) | |
339 | return ret; | |
340 | samples = frame->data[0]; | |
341 | ||
342 | switch (avctx->codec_id) { | |
343 | case AV_CODEC_ID_PCM_U32LE: | |
344 | DECODE(32, le32, src, samples, n, 0, 0x80000000) | |
345 | break; | |
346 | case AV_CODEC_ID_PCM_U32BE: | |
347 | DECODE(32, be32, src, samples, n, 0, 0x80000000) | |
348 | break; | |
349 | case AV_CODEC_ID_PCM_S24LE: | |
350 | DECODE(32, le24, src, samples, n, 8, 0) | |
351 | break; | |
352 | case AV_CODEC_ID_PCM_S24LE_PLANAR: | |
353 | DECODE_PLANAR(32, le24, src, samples, n, 8, 0); | |
354 | break; | |
355 | case AV_CODEC_ID_PCM_S24BE: | |
356 | DECODE(32, be24, src, samples, n, 8, 0) | |
357 | break; | |
358 | case AV_CODEC_ID_PCM_U24LE: | |
359 | DECODE(32, le24, src, samples, n, 8, 0x800000) | |
360 | break; | |
361 | case AV_CODEC_ID_PCM_U24BE: | |
362 | DECODE(32, be24, src, samples, n, 8, 0x800000) | |
363 | break; | |
364 | case AV_CODEC_ID_PCM_S24DAUD: | |
365 | for (; n > 0; n--) { | |
366 | uint32_t v = bytestream_get_be24(&src); | |
367 | v >>= 4; // sync flags are here | |
368 | AV_WN16A(samples, ff_reverse[(v >> 8) & 0xff] + | |
369 | (ff_reverse[v & 0xff] << 8)); | |
370 | samples += 2; | |
371 | } | |
372 | break; | |
373 | case AV_CODEC_ID_PCM_U16LE: | |
374 | DECODE(16, le16, src, samples, n, 0, 0x8000) | |
375 | break; | |
376 | case AV_CODEC_ID_PCM_U16BE: | |
377 | DECODE(16, be16, src, samples, n, 0, 0x8000) | |
378 | break; | |
379 | case AV_CODEC_ID_PCM_S8: | |
380 | for (; n > 0; n--) | |
381 | *samples++ = *src++ + 128; | |
382 | break; | |
383 | case AV_CODEC_ID_PCM_S8_PLANAR: | |
384 | n /= avctx->channels; | |
385 | for (c = 0; c < avctx->channels; c++) { | |
386 | int i; | |
387 | samples = frame->extended_data[c]; | |
388 | for (i = n; i > 0; i--) | |
389 | *samples++ = *src++ + 128; | |
390 | } | |
391 | break; | |
392 | #if HAVE_BIGENDIAN | |
393 | case AV_CODEC_ID_PCM_F64LE: | |
394 | DECODE(64, le64, src, samples, n, 0, 0) | |
395 | break; | |
396 | case AV_CODEC_ID_PCM_S32LE: | |
397 | case AV_CODEC_ID_PCM_F32LE: | |
398 | DECODE(32, le32, src, samples, n, 0, 0) | |
399 | break; | |
400 | case AV_CODEC_ID_PCM_S32LE_PLANAR: | |
401 | DECODE_PLANAR(32, le32, src, samples, n, 0, 0); | |
402 | break; | |
403 | case AV_CODEC_ID_PCM_S16LE: | |
404 | DECODE(16, le16, src, samples, n, 0, 0) | |
405 | break; | |
406 | case AV_CODEC_ID_PCM_S16LE_PLANAR: | |
407 | DECODE_PLANAR(16, le16, src, samples, n, 0, 0); | |
408 | break; | |
409 | case AV_CODEC_ID_PCM_F64BE: | |
410 | case AV_CODEC_ID_PCM_F32BE: | |
411 | case AV_CODEC_ID_PCM_S32BE: | |
412 | case AV_CODEC_ID_PCM_S16BE: | |
413 | #else | |
414 | case AV_CODEC_ID_PCM_F64BE: | |
415 | DECODE(64, be64, src, samples, n, 0, 0) | |
416 | break; | |
417 | case AV_CODEC_ID_PCM_F32BE: | |
418 | case AV_CODEC_ID_PCM_S32BE: | |
419 | DECODE(32, be32, src, samples, n, 0, 0) | |
420 | break; | |
421 | case AV_CODEC_ID_PCM_S16BE: | |
422 | DECODE(16, be16, src, samples, n, 0, 0) | |
423 | break; | |
424 | case AV_CODEC_ID_PCM_S16BE_PLANAR: | |
425 | DECODE_PLANAR(16, be16, src, samples, n, 0, 0); | |
426 | break; | |
427 | case AV_CODEC_ID_PCM_F64LE: | |
428 | case AV_CODEC_ID_PCM_F32LE: | |
429 | case AV_CODEC_ID_PCM_S32LE: | |
430 | case AV_CODEC_ID_PCM_S16LE: | |
431 | #endif /* HAVE_BIGENDIAN */ | |
432 | case AV_CODEC_ID_PCM_U8: | |
433 | memcpy(samples, src, n * sample_size); | |
434 | break; | |
435 | #if HAVE_BIGENDIAN | |
436 | case AV_CODEC_ID_PCM_S16BE_PLANAR: | |
437 | #else | |
438 | case AV_CODEC_ID_PCM_S16LE_PLANAR: | |
439 | case AV_CODEC_ID_PCM_S32LE_PLANAR: | |
440 | #endif /* HAVE_BIGENDIAN */ | |
441 | n /= avctx->channels; | |
442 | for (c = 0; c < avctx->channels; c++) { | |
443 | samples = frame->extended_data[c]; | |
444 | bytestream_get_buffer(&src, samples, n * sample_size); | |
445 | } | |
446 | break; | |
447 | case AV_CODEC_ID_PCM_ZORK: | |
448 | for (; n > 0; n--) { | |
449 | int v = *src++; | |
450 | if (v < 128) | |
451 | v = 128 - v; | |
452 | *samples++ = v; | |
453 | } | |
454 | break; | |
455 | case AV_CODEC_ID_PCM_ALAW: | |
456 | case AV_CODEC_ID_PCM_MULAW: | |
457 | for (; n > 0; n--) { | |
458 | AV_WN16A(samples, s->table[*src++]); | |
459 | samples += 2; | |
460 | } | |
461 | break; | |
462 | case AV_CODEC_ID_PCM_LXF: | |
463 | { | |
464 | int i; | |
465 | n /= avctx->channels; | |
466 | for (c = 0; c < avctx->channels; c++) { | |
467 | dst_int32_t = (int32_t *)frame->extended_data[c]; | |
468 | for (i = 0; i < n; i++) { | |
469 | // extract low 20 bits and expand to 32 bits | |
470 | *dst_int32_t++ = (src[2] << 28) | | |
471 | (src[1] << 20) | | |
472 | (src[0] << 12) | | |
473 | ((src[2] & 0x0F) << 8) | | |
474 | src[1]; | |
475 | // extract high 20 bits and expand to 32 bits | |
476 | *dst_int32_t++ = (src[4] << 24) | | |
477 | (src[3] << 16) | | |
478 | ((src[2] & 0xF0) << 8) | | |
479 | (src[4] << 4) | | |
480 | (src[3] >> 4); | |
481 | src += 5; | |
482 | } | |
483 | } | |
484 | break; | |
485 | } | |
486 | default: | |
487 | return -1; | |
488 | } | |
489 | ||
490 | *got_frame_ptr = 1; | |
491 | ||
492 | return buf_size; | |
493 | } | |
494 | ||
495 | #define PCM_ENCODER_0(id_, sample_fmt_, name_, long_name_) | |
496 | #define PCM_ENCODER_1(id_, sample_fmt_, name_, long_name_) \ | |
497 | AVCodec ff_ ## name_ ## _encoder = { \ | |
498 | .name = #name_, \ | |
499 | .long_name = NULL_IF_CONFIG_SMALL(long_name_), \ | |
500 | .type = AVMEDIA_TYPE_AUDIO, \ | |
501 | .id = AV_CODEC_ID_ ## id_, \ | |
502 | .init = pcm_encode_init, \ | |
503 | .encode2 = pcm_encode_frame, \ | |
504 | .capabilities = CODEC_CAP_VARIABLE_FRAME_SIZE, \ | |
505 | .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \ | |
506 | AV_SAMPLE_FMT_NONE }, \ | |
507 | } | |
508 | ||
509 | #define PCM_ENCODER_2(cf, id, sample_fmt, name, long_name) \ | |
510 | PCM_ENCODER_ ## cf(id, sample_fmt, name, long_name) | |
511 | #define PCM_ENCODER_3(cf, id, sample_fmt, name, long_name) \ | |
512 | PCM_ENCODER_2(cf, id, sample_fmt, name, long_name) | |
513 | #define PCM_ENCODER(id, sample_fmt, name, long_name) \ | |
514 | PCM_ENCODER_3(CONFIG_ ## id ## _ENCODER, id, sample_fmt, name, long_name) | |
515 | ||
516 | #define PCM_DECODER_0(id, sample_fmt, name, long_name) | |
517 | #define PCM_DECODER_1(id_, sample_fmt_, name_, long_name_) \ | |
518 | AVCodec ff_ ## name_ ## _decoder = { \ | |
519 | .name = #name_, \ | |
520 | .long_name = NULL_IF_CONFIG_SMALL(long_name_), \ | |
521 | .type = AVMEDIA_TYPE_AUDIO, \ | |
522 | .id = AV_CODEC_ID_ ## id_, \ | |
523 | .priv_data_size = sizeof(PCMDecode), \ | |
524 | .init = pcm_decode_init, \ | |
525 | .decode = pcm_decode_frame, \ | |
526 | .capabilities = CODEC_CAP_DR1, \ | |
527 | .sample_fmts = (const enum AVSampleFormat[]){ sample_fmt_, \ | |
528 | AV_SAMPLE_FMT_NONE }, \ | |
529 | } | |
530 | ||
531 | #define PCM_DECODER_2(cf, id, sample_fmt, name, long_name) \ | |
532 | PCM_DECODER_ ## cf(id, sample_fmt, name, long_name) | |
533 | #define PCM_DECODER_3(cf, id, sample_fmt, name, long_name) \ | |
534 | PCM_DECODER_2(cf, id, sample_fmt, name, long_name) | |
535 | #define PCM_DECODER(id, sample_fmt, name, long_name) \ | |
536 | PCM_DECODER_3(CONFIG_ ## id ## _DECODER, id, sample_fmt, name, long_name) | |
537 | ||
538 | #define PCM_CODEC(id, sample_fmt_, name, long_name_) \ | |
539 | PCM_ENCODER(id, sample_fmt_, name, long_name_); \ | |
540 | PCM_DECODER(id, sample_fmt_, name, long_name_) | |
541 | ||
542 | /* Note: Do not forget to add new entries to the Makefile as well. */ | |
543 | PCM_CODEC (PCM_ALAW, AV_SAMPLE_FMT_S16, pcm_alaw, "PCM A-law / G.711 A-law"); | |
544 | PCM_CODEC (PCM_F32BE, AV_SAMPLE_FMT_FLT, pcm_f32be, "PCM 32-bit floating point big-endian"); | |
545 | PCM_CODEC (PCM_F32LE, AV_SAMPLE_FMT_FLT, pcm_f32le, "PCM 32-bit floating point little-endian"); | |
546 | PCM_CODEC (PCM_F64BE, AV_SAMPLE_FMT_DBL, pcm_f64be, "PCM 64-bit floating point big-endian"); | |
547 | PCM_CODEC (PCM_F64LE, AV_SAMPLE_FMT_DBL, pcm_f64le, "PCM 64-bit floating point little-endian"); | |
548 | PCM_DECODER(PCM_LXF, AV_SAMPLE_FMT_S32P,pcm_lxf, "PCM signed 20-bit little-endian planar"); | |
549 | PCM_CODEC (PCM_MULAW, AV_SAMPLE_FMT_S16, pcm_mulaw, "PCM mu-law / G.711 mu-law"); | |
550 | PCM_CODEC (PCM_S8, AV_SAMPLE_FMT_U8, pcm_s8, "PCM signed 8-bit"); | |
551 | PCM_CODEC (PCM_S8_PLANAR, AV_SAMPLE_FMT_U8P, pcm_s8_planar, "PCM signed 8-bit planar"); | |
552 | PCM_CODEC (PCM_S16BE, AV_SAMPLE_FMT_S16, pcm_s16be, "PCM signed 16-bit big-endian"); | |
553 | PCM_CODEC (PCM_S16BE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16be_planar, "PCM signed 16-bit big-endian planar"); | |
554 | PCM_CODEC (PCM_S16LE, AV_SAMPLE_FMT_S16, pcm_s16le, "PCM signed 16-bit little-endian"); | |
555 | PCM_CODEC (PCM_S16LE_PLANAR, AV_SAMPLE_FMT_S16P,pcm_s16le_planar, "PCM signed 16-bit little-endian planar"); | |
556 | PCM_CODEC (PCM_S24BE, AV_SAMPLE_FMT_S32, pcm_s24be, "PCM signed 24-bit big-endian"); | |
557 | PCM_CODEC (PCM_S24DAUD, AV_SAMPLE_FMT_S16, pcm_s24daud, "PCM D-Cinema audio signed 24-bit"); | |
558 | PCM_CODEC (PCM_S24LE, AV_SAMPLE_FMT_S32, pcm_s24le, "PCM signed 24-bit little-endian"); | |
559 | PCM_CODEC (PCM_S24LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s24le_planar, "PCM signed 24-bit little-endian planar"); | |
560 | PCM_CODEC (PCM_S32BE, AV_SAMPLE_FMT_S32, pcm_s32be, "PCM signed 32-bit big-endian"); | |
561 | PCM_CODEC (PCM_S32LE, AV_SAMPLE_FMT_S32, pcm_s32le, "PCM signed 32-bit little-endian"); | |
562 | PCM_CODEC (PCM_S32LE_PLANAR, AV_SAMPLE_FMT_S32P,pcm_s32le_planar, "PCM signed 32-bit little-endian planar"); | |
563 | PCM_CODEC (PCM_U8, AV_SAMPLE_FMT_U8, pcm_u8, "PCM unsigned 8-bit"); | |
564 | PCM_CODEC (PCM_U16BE, AV_SAMPLE_FMT_S16, pcm_u16be, "PCM unsigned 16-bit big-endian"); | |
565 | PCM_CODEC (PCM_U16LE, AV_SAMPLE_FMT_S16, pcm_u16le, "PCM unsigned 16-bit little-endian"); | |
566 | PCM_CODEC (PCM_U24BE, AV_SAMPLE_FMT_S32, pcm_u24be, "PCM unsigned 24-bit big-endian"); | |
567 | PCM_CODEC (PCM_U24LE, AV_SAMPLE_FMT_S32, pcm_u24le, "PCM unsigned 24-bit little-endian"); | |
568 | PCM_CODEC (PCM_U32BE, AV_SAMPLE_FMT_S32, pcm_u32be, "PCM unsigned 32-bit big-endian"); | |
569 | PCM_CODEC (PCM_U32LE, AV_SAMPLE_FMT_S32, pcm_u32le, "PCM unsigned 32-bit little-endian"); | |
570 | PCM_DECODER(PCM_ZORK, AV_SAMPLE_FMT_U8, pcm_zork, "PCM Zork"); | |
571 |