Directory: | ../../../ffmpeg/ |
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File: | src/libavcodec/dpcm.c |
Date: | 2022-07-05 19:52:29 |
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Lines: | 104 | 183 | 56.8% |
Branches: | 43 | 83 | 51.8% |
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1 | /* | ||
2 | * Assorted DPCM codecs | ||
3 | * Copyright (c) 2003 The FFmpeg project | ||
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 | * Assorted DPCM (differential pulse code modulation) audio codecs | ||
25 | * by Mike Melanson (melanson@pcisys.net) | ||
26 | * Xan DPCM decoder by Mario Brito (mbrito@student.dei.uc.pt) | ||
27 | * for more information on the specific data formats, visit: | ||
28 | * http://www.pcisys.net/~melanson/codecs/simpleaudio.html | ||
29 | * SOL DPCMs implemented by Konstantin Shishkov | ||
30 | * | ||
31 | * Note about using the Xan DPCM decoder: Xan DPCM is used in AVI files | ||
32 | * found in the Wing Commander IV computer game. These AVI files contain | ||
33 | * WAVEFORMAT headers which report the audio format as 0x01: raw PCM. | ||
34 | * Clearly incorrect. To detect Xan DPCM, you will probably have to | ||
35 | * special-case your AVI demuxer to use Xan DPCM if the file uses 'Xxan' | ||
36 | * (Xan video) for its video codec. Alternately, such AVI files also contain | ||
37 | * the fourcc 'Axan' in the 'auds' chunk of the AVI header. | ||
38 | */ | ||
39 | |||
40 | #include "libavutil/intreadwrite.h" | ||
41 | #include "avcodec.h" | ||
42 | #include "bytestream.h" | ||
43 | #include "codec_internal.h" | ||
44 | #include "internal.h" | ||
45 | #include "mathops.h" | ||
46 | |||
47 | typedef struct DPCMContext { | ||
48 | int16_t array[256]; | ||
49 | int sample[2]; ///< previous sample (for SOL_DPCM) | ||
50 | const int8_t *sol_table; ///< delta table for SOL_DPCM | ||
51 | } DPCMContext; | ||
52 | |||
53 | static const int32_t derf_steps[96] = { | ||
54 | 0, 1, 2, 3, 4, 5, 6, 7, | ||
55 | 8, 9, 10, 11, 12, 13, 14, 16, | ||
56 | 17, 19, 21, 23, 25, 28, 31, 34, | ||
57 | 37, 41, 45, 50, 55, 60, 66, 73, | ||
58 | 80, 88, 97, 107, 118, 130, 143, 157, | ||
59 | 173, 190, 209, 230, 253, 279, 307, 337, | ||
60 | 371, 408, 449, 494, 544, 598, 658, 724, | ||
61 | 796, 876, 963, 1060, 1166, 1282, 1411, 1552, | ||
62 | 1707, 1878, 2066, 2272, 2499, 2749, 3024, 3327, | ||
63 | 3660, 4026, 4428, 4871, 5358, 5894, 6484, 7132, | ||
64 | 7845, 8630, 9493, 10442, 11487, 12635, 13899, 15289, | ||
65 | 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767, | ||
66 | }; | ||
67 | |||
68 | static const int16_t interplay_delta_table[] = { | ||
69 | 0, 1, 2, 3, 4, 5, 6, 7, | ||
70 | 8, 9, 10, 11, 12, 13, 14, 15, | ||
71 | 16, 17, 18, 19, 20, 21, 22, 23, | ||
72 | 24, 25, 26, 27, 28, 29, 30, 31, | ||
73 | 32, 33, 34, 35, 36, 37, 38, 39, | ||
74 | 40, 41, 42, 43, 47, 51, 56, 61, | ||
75 | 66, 72, 79, 86, 94, 102, 112, 122, | ||
76 | 133, 145, 158, 173, 189, 206, 225, 245, | ||
77 | 267, 292, 318, 348, 379, 414, 452, 493, | ||
78 | 538, 587, 640, 699, 763, 832, 908, 991, | ||
79 | 1081, 1180, 1288, 1405, 1534, 1673, 1826, 1993, | ||
80 | 2175, 2373, 2590, 2826, 3084, 3365, 3672, 4008, | ||
81 | 4373, 4772, 5208, 5683, 6202, 6767, 7385, 8059, | ||
82 | 8794, 9597, 10472, 11428, 12471, 13609, 14851, 16206, | ||
83 | 17685, 19298, 21060, 22981, 25078, 27367, 29864, 32589, | ||
84 | -29973, -26728, -23186, -19322, -15105, -10503, -5481, -1, | ||
85 | 1, 1, 5481, 10503, 15105, 19322, 23186, 26728, | ||
86 | 29973, -32589, -29864, -27367, -25078, -22981, -21060, -19298, | ||
87 | -17685, -16206, -14851, -13609, -12471, -11428, -10472, -9597, | ||
88 | -8794, -8059, -7385, -6767, -6202, -5683, -5208, -4772, | ||
89 | -4373, -4008, -3672, -3365, -3084, -2826, -2590, -2373, | ||
90 | -2175, -1993, -1826, -1673, -1534, -1405, -1288, -1180, | ||
91 | -1081, -991, -908, -832, -763, -699, -640, -587, | ||
92 | -538, -493, -452, -414, -379, -348, -318, -292, | ||
93 | -267, -245, -225, -206, -189, -173, -158, -145, | ||
94 | -133, -122, -112, -102, -94, -86, -79, -72, | ||
95 | -66, -61, -56, -51, -47, -43, -42, -41, | ||
96 | -40, -39, -38, -37, -36, -35, -34, -33, | ||
97 | -32, -31, -30, -29, -28, -27, -26, -25, | ||
98 | -24, -23, -22, -21, -20, -19, -18, -17, | ||
99 | -16, -15, -14, -13, -12, -11, -10, -9, | ||
100 | -8, -7, -6, -5, -4, -3, -2, -1 | ||
101 | |||
102 | }; | ||
103 | |||
104 | static const int8_t sol_table_old[16] = { | ||
105 | 0x0, 0x1, 0x2, 0x3, 0x6, 0xA, 0xF, 0x15, | ||
106 | -0x15, -0xF, -0xA, -0x6, -0x3, -0x2, -0x1, 0x0 | ||
107 | }; | ||
108 | |||
109 | static const int8_t sol_table_new[16] = { | ||
110 | 0x0, 0x1, 0x2, 0x3, 0x6, 0xA, 0xF, 0x15, | ||
111 | 0x0, -0x1, -0x2, -0x3, -0x6, -0xA, -0xF, -0x15 | ||
112 | }; | ||
113 | |||
114 | static const int16_t sol_table_16[128] = { | ||
115 | 0x000, 0x008, 0x010, 0x020, 0x030, 0x040, 0x050, 0x060, 0x070, 0x080, | ||
116 | 0x090, 0x0A0, 0x0B0, 0x0C0, 0x0D0, 0x0E0, 0x0F0, 0x100, 0x110, 0x120, | ||
117 | 0x130, 0x140, 0x150, 0x160, 0x170, 0x180, 0x190, 0x1A0, 0x1B0, 0x1C0, | ||
118 | 0x1D0, 0x1E0, 0x1F0, 0x200, 0x208, 0x210, 0x218, 0x220, 0x228, 0x230, | ||
119 | 0x238, 0x240, 0x248, 0x250, 0x258, 0x260, 0x268, 0x270, 0x278, 0x280, | ||
120 | 0x288, 0x290, 0x298, 0x2A0, 0x2A8, 0x2B0, 0x2B8, 0x2C0, 0x2C8, 0x2D0, | ||
121 | 0x2D8, 0x2E0, 0x2E8, 0x2F0, 0x2F8, 0x300, 0x308, 0x310, 0x318, 0x320, | ||
122 | 0x328, 0x330, 0x338, 0x340, 0x348, 0x350, 0x358, 0x360, 0x368, 0x370, | ||
123 | 0x378, 0x380, 0x388, 0x390, 0x398, 0x3A0, 0x3A8, 0x3B0, 0x3B8, 0x3C0, | ||
124 | 0x3C8, 0x3D0, 0x3D8, 0x3E0, 0x3E8, 0x3F0, 0x3F8, 0x400, 0x440, 0x480, | ||
125 | 0x4C0, 0x500, 0x540, 0x580, 0x5C0, 0x600, 0x640, 0x680, 0x6C0, 0x700, | ||
126 | 0x740, 0x780, 0x7C0, 0x800, 0x900, 0xA00, 0xB00, 0xC00, 0xD00, 0xE00, | ||
127 | 0xF00, 0x1000, 0x1400, 0x1800, 0x1C00, 0x2000, 0x3000, 0x4000 | ||
128 | }; | ||
129 | |||
130 | |||
131 | 14 | static av_cold int dpcm_decode_init(AVCodecContext *avctx) | |
132 | { | ||
133 | 14 | DPCMContext *s = avctx->priv_data; | |
134 | int i; | ||
135 | |||
136 |
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14 | if (avctx->ch_layout.nb_channels < 1 || avctx->ch_layout.nb_channels > 2) { |
137 | ✗ | av_log(avctx, AV_LOG_ERROR, "invalid number of channels\n"); | |
138 | ✗ | return AVERROR(EINVAL); | |
139 | } | ||
140 | |||
141 | 14 | s->sample[0] = s->sample[1] = 0; | |
142 | |||
143 |
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14 | switch(avctx->codec->id) { |
144 | |||
145 | 5 | case AV_CODEC_ID_ROQ_DPCM: | |
146 | /* initialize square table */ | ||
147 |
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645 | for (i = 0; i < 128; i++) { |
148 | 640 | int16_t square = i * i; | |
149 | 640 | s->array[i ] = square; | |
150 | 640 | s->array[i + 128] = -square; | |
151 | } | ||
152 | 5 | break; | |
153 | |||
154 | 2 | case AV_CODEC_ID_SOL_DPCM: | |
155 |
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2 | switch(avctx->codec_tag){ |
156 | ✗ | case 1: | |
157 | ✗ | s->sol_table = sol_table_old; | |
158 | ✗ | s->sample[0] = s->sample[1] = 0x80; | |
159 | ✗ | break; | |
160 | ✗ | case 2: | |
161 | ✗ | s->sol_table = sol_table_new; | |
162 | ✗ | s->sample[0] = s->sample[1] = 0x80; | |
163 | ✗ | break; | |
164 | 2 | case 3: | |
165 | 2 | break; | |
166 | ✗ | default: | |
167 | ✗ | av_log(avctx, AV_LOG_ERROR, "Unknown SOL subcodec\n"); | |
168 | ✗ | return -1; | |
169 | } | ||
170 | 2 | break; | |
171 | |||
172 | ✗ | case AV_CODEC_ID_SDX2_DPCM: | |
173 | ✗ | for (i = -128; i < 128; i++) { | |
174 | ✗ | int16_t square = i * i * 2; | |
175 | ✗ | s->array[i+128] = i < 0 ? -square: square; | |
176 | } | ||
177 | ✗ | break; | |
178 | |||
179 | ✗ | case AV_CODEC_ID_GREMLIN_DPCM: { | |
180 | ✗ | int delta = 0; | |
181 | ✗ | int code = 64; | |
182 | ✗ | int step = 45; | |
183 | |||
184 | ✗ | s->array[0] = 0; | |
185 | ✗ | for (i = 0; i < 127; i++) { | |
186 | ✗ | delta += (code >> 5); | |
187 | ✗ | code += step; | |
188 | ✗ | step += 2; | |
189 | |||
190 | ✗ | s->array[i*2 + 1] = delta; | |
191 | ✗ | s->array[i*2 + 2] = -delta; | |
192 | } | ||
193 | ✗ | s->array[255] = delta + (code >> 5); | |
194 | } | ||
195 | ✗ | break; | |
196 | |||
197 | 7 | default: | |
198 | 7 | break; | |
199 | } | ||
200 | |||
201 |
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14 | if (avctx->codec->id == AV_CODEC_ID_SOL_DPCM && avctx->codec_tag != 3) |
202 | ✗ | avctx->sample_fmt = AV_SAMPLE_FMT_U8; | |
203 | else | ||
204 | 14 | avctx->sample_fmt = AV_SAMPLE_FMT_S16; | |
205 | |||
206 | 14 | return 0; | |
207 | } | ||
208 | |||
209 | |||
210 | 649 | static int dpcm_decode_frame(AVCodecContext *avctx, AVFrame *frame, | |
211 | int *got_frame_ptr, AVPacket *avpkt) | ||
212 | { | ||
213 | 649 | int buf_size = avpkt->size; | |
214 | 649 | DPCMContext *s = avctx->priv_data; | |
215 | 649 | int out = 0, ret; | |
216 | int predictor[2]; | ||
217 | 649 | int ch = 0; | |
218 | 649 | int stereo = avctx->ch_layout.nb_channels - 1; | |
219 | int16_t *output_samples, *samples_end; | ||
220 | GetByteContext gb; | ||
221 | |||
222 |
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649 | if (stereo && (buf_size & 1)) |
223 | ✗ | buf_size--; | |
224 | 649 | bytestream2_init(&gb, avpkt->data, buf_size); | |
225 | |||
226 | /* calculate output size */ | ||
227 |
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649 | switch(avctx->codec->id) { |
228 | 340 | case AV_CODEC_ID_ROQ_DPCM: | |
229 | 340 | out = buf_size - 8; | |
230 | 340 | break; | |
231 | 124 | case AV_CODEC_ID_INTERPLAY_DPCM: | |
232 | 124 | out = buf_size - 6 - avctx->ch_layout.nb_channels; | |
233 | 124 | break; | |
234 | 111 | case AV_CODEC_ID_XAN_DPCM: | |
235 | 111 | out = buf_size - 2 * avctx->ch_layout.nb_channels; | |
236 | 111 | break; | |
237 | 74 | case AV_CODEC_ID_SOL_DPCM: | |
238 |
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74 | if (avctx->codec_tag != 3) |
239 | ✗ | out = buf_size * 2; | |
240 | else | ||
241 | 74 | out = buf_size; | |
242 | 74 | break; | |
243 | ✗ | case AV_CODEC_ID_DERF_DPCM: | |
244 | case AV_CODEC_ID_GREMLIN_DPCM: | ||
245 | case AV_CODEC_ID_SDX2_DPCM: | ||
246 | ✗ | out = buf_size; | |
247 | ✗ | break; | |
248 | } | ||
249 |
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649 | if (out <= 0) { |
250 | ✗ | av_log(avctx, AV_LOG_ERROR, "packet is too small\n"); | |
251 | ✗ | return AVERROR(EINVAL); | |
252 | } | ||
253 |
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649 | if (out % avctx->ch_layout.nb_channels) { |
254 | ✗ | av_log(avctx, AV_LOG_WARNING, "channels have differing number of samples\n"); | |
255 | } | ||
256 | |||
257 | /* get output buffer */ | ||
258 | 649 | frame->nb_samples = (out + avctx->ch_layout.nb_channels - 1) / avctx->ch_layout.nb_channels; | |
259 |
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649 | if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) |
260 | ✗ | return ret; | |
261 | 649 | output_samples = (int16_t *)frame->data[0]; | |
262 | 649 | samples_end = output_samples + out; | |
263 | |||
264 |
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649 | switch(avctx->codec->id) { |
265 | |||
266 | 340 | case AV_CODEC_ID_ROQ_DPCM: | |
267 | 340 | bytestream2_skipu(&gb, 6); | |
268 | |||
269 |
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340 | if (stereo) { |
270 | 340 | predictor[1] = sign_extend(bytestream2_get_byteu(&gb) << 8, 16); | |
271 | 340 | predictor[0] = sign_extend(bytestream2_get_byteu(&gb) << 8, 16); | |
272 | } else { | ||
273 | ✗ | predictor[0] = sign_extend(bytestream2_get_le16u(&gb), 16); | |
274 | } | ||
275 | |||
276 | /* decode the samples */ | ||
277 |
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523240 | while (output_samples < samples_end) { |
278 | 522900 | predictor[ch] += s->array[bytestream2_get_byteu(&gb)]; | |
279 | 522900 | predictor[ch] = av_clip_int16(predictor[ch]); | |
280 | 522900 | *output_samples++ = predictor[ch]; | |
281 | |||
282 | /* toggle channel */ | ||
283 | 522900 | ch ^= stereo; | |
284 | } | ||
285 | 340 | break; | |
286 | |||
287 | 124 | case AV_CODEC_ID_INTERPLAY_DPCM: | |
288 | 124 | bytestream2_skipu(&gb, 6); /* skip over the stream mask and stream length */ | |
289 | |||
290 |
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372 | for (ch = 0; ch < avctx->ch_layout.nb_channels; ch++) { |
291 | 248 | predictor[ch] = sign_extend(bytestream2_get_le16u(&gb), 16); | |
292 | 248 | *output_samples++ = predictor[ch]; | |
293 | } | ||
294 | |||
295 | 124 | ch = 0; | |
296 |
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364752 | while (output_samples < samples_end) { |
297 | 364628 | predictor[ch] += interplay_delta_table[bytestream2_get_byteu(&gb)]; | |
298 | 364628 | predictor[ch] = av_clip_int16(predictor[ch]); | |
299 | 364628 | *output_samples++ = predictor[ch]; | |
300 | |||
301 | /* toggle channel */ | ||
302 | 364628 | ch ^= stereo; | |
303 | } | ||
304 | 124 | break; | |
305 | |||
306 | 111 | case AV_CODEC_ID_XAN_DPCM: | |
307 | { | ||
308 | 111 | int shift[2] = { 4, 4 }; | |
309 | |||
310 |
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333 | for (ch = 0; ch < avctx->ch_layout.nb_channels; ch++) |
311 | 222 | predictor[ch] = sign_extend(bytestream2_get_le16u(&gb), 16); | |
312 | |||
313 | 111 | ch = 0; | |
314 |
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326229 | while (output_samples < samples_end) { |
315 | 326118 | int diff = bytestream2_get_byteu(&gb); | |
316 | 326118 | int n = diff & 3; | |
317 | |||
318 |
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326118 | if (n == 3) |
319 | 134940 | shift[ch]++; | |
320 | else | ||
321 | 191178 | shift[ch] -= (2 * n); | |
322 | 326118 | diff = sign_extend((diff &~ 3) << 8, 16); | |
323 | |||
324 | /* saturate the shifter to 0..31 */ | ||
325 | 326118 | shift[ch] = av_clip_uintp2(shift[ch], 5); | |
326 | |||
327 | 326118 | diff >>= shift[ch]; | |
328 | 326118 | predictor[ch] += diff; | |
329 | |||
330 | 326118 | predictor[ch] = av_clip_int16(predictor[ch]); | |
331 | 326118 | *output_samples++ = predictor[ch]; | |
332 | |||
333 | /* toggle channel */ | ||
334 | 326118 | ch ^= stereo; | |
335 | } | ||
336 | 111 | break; | |
337 | } | ||
338 | 74 | case AV_CODEC_ID_SOL_DPCM: | |
339 |
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74 | if (avctx->codec_tag != 3) { |
340 | ✗ | uint8_t *output_samples_u8 = frame->data[0], | |
341 | ✗ | *samples_end_u8 = output_samples_u8 + out; | |
342 | ✗ | while (output_samples_u8 < samples_end_u8) { | |
343 | ✗ | int n = bytestream2_get_byteu(&gb); | |
344 | |||
345 | ✗ | s->sample[0] += s->sol_table[n >> 4]; | |
346 | ✗ | s->sample[0] = av_clip_uint8(s->sample[0]); | |
347 | ✗ | *output_samples_u8++ = s->sample[0]; | |
348 | |||
349 | ✗ | s->sample[stereo] += s->sol_table[n & 0x0F]; | |
350 | ✗ | s->sample[stereo] = av_clip_uint8(s->sample[stereo]); | |
351 | ✗ | *output_samples_u8++ = s->sample[stereo]; | |
352 | } | ||
353 | } else { | ||
354 |
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299512 | while (output_samples < samples_end) { |
355 | 299438 | int n = bytestream2_get_byteu(&gb); | |
356 |
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299438 | if (n & 0x80) s->sample[ch] -= sol_table_16[n & 0x7F]; |
357 | 150564 | else s->sample[ch] += sol_table_16[n & 0x7F]; | |
358 | 299438 | s->sample[ch] = av_clip_int16(s->sample[ch]); | |
359 | 299438 | *output_samples++ = s->sample[ch]; | |
360 | /* toggle channel */ | ||
361 | 299438 | ch ^= stereo; | |
362 | } | ||
363 | } | ||
364 | 74 | break; | |
365 | |||
366 | ✗ | case AV_CODEC_ID_SDX2_DPCM: | |
367 | ✗ | while (output_samples < samples_end) { | |
368 | ✗ | int8_t n = bytestream2_get_byteu(&gb); | |
369 | |||
370 | ✗ | if (!(n & 1)) | |
371 | ✗ | s->sample[ch] = 0; | |
372 | ✗ | s->sample[ch] += s->array[n + 128]; | |
373 | ✗ | s->sample[ch] = av_clip_int16(s->sample[ch]); | |
374 | ✗ | *output_samples++ = s->sample[ch]; | |
375 | ✗ | ch ^= stereo; | |
376 | } | ||
377 | ✗ | break; | |
378 | |||
379 | ✗ | case AV_CODEC_ID_GREMLIN_DPCM: { | |
380 | ✗ | int idx = 0; | |
381 | |||
382 | ✗ | while (output_samples < samples_end) { | |
383 | ✗ | uint8_t n = bytestream2_get_byteu(&gb); | |
384 | |||
385 | ✗ | *output_samples++ = s->sample[idx] += (unsigned)s->array[n]; | |
386 | ✗ | idx ^= 1; | |
387 | } | ||
388 | } | ||
389 | ✗ | break; | |
390 | |||
391 | ✗ | case AV_CODEC_ID_DERF_DPCM: { | |
392 | ✗ | int idx = 0; | |
393 | |||
394 | ✗ | while (output_samples < samples_end) { | |
395 | ✗ | uint8_t n = bytestream2_get_byteu(&gb); | |
396 | ✗ | int index = FFMIN(n & 0x7f, 95); | |
397 | |||
398 | ✗ | s->sample[idx] += (n & 0x80 ? -1: 1) * derf_steps[index]; | |
399 | ✗ | s->sample[idx] = av_clip_int16(s->sample[idx]); | |
400 | ✗ | *output_samples++ = s->sample[idx]; | |
401 | ✗ | idx ^= stereo; | |
402 | } | ||
403 | } | ||
404 | ✗ | break; | |
405 | } | ||
406 | |||
407 | 649 | *got_frame_ptr = 1; | |
408 | |||
409 | 649 | return avpkt->size; | |
410 | } | ||
411 | |||
412 | #define DPCM_DECODER(id_, name_, long_name_) \ | ||
413 | const FFCodec ff_ ## name_ ## _decoder = { \ | ||
414 | .p.name = #name_, \ | ||
415 | .p.long_name = NULL_IF_CONFIG_SMALL(long_name_), \ | ||
416 | .p.type = AVMEDIA_TYPE_AUDIO, \ | ||
417 | .p.id = id_, \ | ||
418 | .p.capabilities = AV_CODEC_CAP_DR1, \ | ||
419 | .priv_data_size = sizeof(DPCMContext), \ | ||
420 | .init = dpcm_decode_init, \ | ||
421 | FF_CODEC_DECODE_CB(dpcm_decode_frame), \ | ||
422 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, \ | ||
423 | } | ||
424 | |||
425 | DPCM_DECODER(AV_CODEC_ID_DERF_DPCM, derf_dpcm, "DPCM Xilam DERF"); | ||
426 | DPCM_DECODER(AV_CODEC_ID_GREMLIN_DPCM, gremlin_dpcm, "DPCM Gremlin"); | ||
427 | DPCM_DECODER(AV_CODEC_ID_INTERPLAY_DPCM, interplay_dpcm, "DPCM Interplay"); | ||
428 | DPCM_DECODER(AV_CODEC_ID_ROQ_DPCM, roq_dpcm, "DPCM id RoQ"); | ||
429 | DPCM_DECODER(AV_CODEC_ID_SDX2_DPCM, sdx2_dpcm, "DPCM Squareroot-Delta-Exact"); | ||
430 | DPCM_DECODER(AV_CODEC_ID_SOL_DPCM, sol_dpcm, "DPCM Sol"); | ||
431 | DPCM_DECODER(AV_CODEC_ID_XAN_DPCM, xan_dpcm, "DPCM Xan"); | ||
432 |