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Diffstat (limited to 'src/plugins/ffmpeg/libavformat/electronicarts.c')
-rw-r--r--src/plugins/ffmpeg/libavformat/electronicarts.c488
1 files changed, 0 insertions, 488 deletions
diff --git a/src/plugins/ffmpeg/libavformat/electronicarts.c b/src/plugins/ffmpeg/libavformat/electronicarts.c
deleted file mode 100644
index 7a7207b..0000000
--- a/src/plugins/ffmpeg/libavformat/electronicarts.c
+++ /dev/null
@@ -1,488 +0,0 @@
1/* Electronic Arts Multimedia File Demuxer
2 * Copyright (c) 2004 The ffmpeg Project
3 * Copyright (c) 2006-2008 Peter Ross
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 electronicarts.c
24 * Electronic Arts Multimedia file demuxer (WVE/UV2/etc.)
25 * by Robin Kay (komadori at gekkou.co.uk)
26 */
27
28#include "avformat.h"
29
30#define SCHl_TAG MKTAG('S', 'C', 'H', 'l')
31#define SEAD_TAG MKTAG('S', 'E', 'A', 'D') /* Sxxx header */
32#define SNDC_TAG MKTAG('S', 'N', 'D', 'C') /* Sxxx data */
33#define SEND_TAG MKTAG('S', 'E', 'N', 'D') /* Sxxx end */
34#define ISNh_TAG MKTAG('1', 'S', 'N', 'h') /* 1SNx header */
35#define EACS_TAG MKTAG('E', 'A', 'C', 'S')
36#define ISNd_TAG MKTAG('1', 'S', 'N', 'd') /* 1SNx data */
37#define ISNe_TAG MKTAG('1', 'S', 'N', 'e') /* 1SNx end */
38#define PT00_TAG MKTAG('P', 'T', 0x0, 0x0)
39#define GSTR_TAG MKTAG('G', 'S', 'T', 'R')
40#define SCDl_TAG MKTAG('S', 'C', 'D', 'l')
41#define SCEl_TAG MKTAG('S', 'C', 'E', 'l')
42#define kVGT_TAG MKTAG('k', 'V', 'G', 'T') /* TGV i-frame */
43#define MADk_TAG MKTAG('M', 'A', 'D', 'k') /* MAD i-frame */
44#define MPCh_TAG MKTAG('M', 'P', 'C', 'h') /* MPEG2 */
45#define MVhd_TAG MKTAG('M', 'V', 'h', 'd')
46#define MV0K_TAG MKTAG('M', 'V', '0', 'K')
47#define MV0F_TAG MKTAG('M', 'V', '0', 'F')
48#define MVIh_TAG MKTAG('M', 'V', 'I', 'h') /* CMV header */
49#define MVIf_TAG MKTAG('M', 'V', 'I', 'f') /* CMV i-frame */
50
51typedef struct EaDemuxContext {
52 int big_endian;
53
54 enum CodecID video_codec;
55 AVRational time_base;
56 int video_stream_index;
57
58 enum CodecID audio_codec;
59 int audio_stream_index;
60 int audio_frame_counter;
61
62 int64_t audio_pts;
63
64 int bytes;
65 int sample_rate;
66 int num_channels;
67 int num_samples;
68} EaDemuxContext;
69
70static uint32_t read_arbitary(ByteIOContext *pb) {
71 uint8_t size, byte;
72 int i;
73 uint32_t word;
74
75 size = get_byte(pb);
76
77 word = 0;
78 for (i = 0; i < size; i++) {
79 byte = get_byte(pb);
80 word <<= 8;
81 word |= byte;
82 }
83
84 return word;
85}
86
87/*
88 * Process PT/GSTR sound header
89 * return 1 if success, 0 if invalid format, otherwise AVERROR_xxx
90 */
91static int process_audio_header_elements(AVFormatContext *s)
92{
93 int inHeader = 1;
94 EaDemuxContext *ea = s->priv_data;
95 ByteIOContext *pb = s->pb;
96 int compression_type = -1, revision = -1, revision2 = -1;
97
98 ea->bytes = 2;
99 ea->sample_rate = -1;
100 ea->num_channels = 1;
101
102 while (inHeader) {
103 int inSubheader;
104 uint8_t byte;
105 byte = get_byte(pb);
106
107 switch (byte) {
108 case 0xFD:
109 av_log (s, AV_LOG_INFO, "entered audio subheader\n");
110 inSubheader = 1;
111 while (inSubheader) {
112 uint8_t subbyte;
113 subbyte = get_byte(pb);
114
115 switch (subbyte) {
116 case 0x80:
117 revision = read_arbitary(pb);
118 av_log (s, AV_LOG_INFO, "revision (element 0x80) set to 0x%08x\n", revision);
119 break;
120 case 0x82:
121 ea->num_channels = read_arbitary(pb);
122 av_log (s, AV_LOG_INFO, "num_channels (element 0x82) set to 0x%08x\n", ea->num_channels);
123 break;
124 case 0x83:
125 compression_type = read_arbitary(pb);
126 av_log (s, AV_LOG_INFO, "compression_type (element 0x83) set to 0x%08x\n", compression_type);
127 break;
128 case 0x84:
129 ea->sample_rate = read_arbitary(pb);
130 av_log (s, AV_LOG_INFO, "sample_rate (element 0x84) set to %i\n", ea->sample_rate);
131 break;
132 case 0x85:
133 ea->num_samples = read_arbitary(pb);
134 av_log (s, AV_LOG_INFO, "num_samples (element 0x85) set to 0x%08x\n", ea->num_samples);
135 break;
136 case 0x8A:
137 av_log (s, AV_LOG_INFO, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
138 av_log (s, AV_LOG_INFO, "exited audio subheader\n");
139 inSubheader = 0;
140 break;
141 case 0xA0:
142 revision2 = read_arbitary(pb);
143 av_log (s, AV_LOG_INFO, "revision2 (element 0xA0) set to 0x%08x\n", revision2);
144 break;
145 case 0xFF:
146 av_log (s, AV_LOG_INFO, "end of header block reached (within audio subheader)\n");
147 inSubheader = 0;
148 inHeader = 0;
149 break;
150 default:
151 av_log (s, AV_LOG_INFO, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
152 break;
153 }
154 }
155 break;
156 case 0xFF:
157 av_log (s, AV_LOG_INFO, "end of header block reached\n");
158 inHeader = 0;
159 break;
160 default:
161 av_log (s, AV_LOG_INFO, "header element 0x%02x set to 0x%08x\n", byte, read_arbitary(pb));
162 break;
163 }
164 }
165
166 switch (compression_type) {
167 case 0: ea->audio_codec = CODEC_ID_PCM_S16LE; break;
168 case 7: ea->audio_codec = CODEC_ID_ADPCM_EA; break;
169 case -1:
170 switch (revision) {
171 case 1: ea->audio_codec = CODEC_ID_ADPCM_EA_R1; break;
172 case 2: ea->audio_codec = CODEC_ID_ADPCM_EA_R2; break;
173 case 3: ea->audio_codec = CODEC_ID_ADPCM_EA_R3; break;
174 case -1: break;
175 default:
176 av_log(s, AV_LOG_ERROR, "unsupported stream type; revision=%i\n", revision);
177 return 0;
178 }
179 switch (revision2) {
180 case 8: ea->audio_codec = CODEC_ID_PCM_S16LE_PLANAR; break;
181 default:
182 av_log(s, AV_LOG_ERROR, "unsupported stream type; revision2=%i\n", revision2);
183 return 0;
184 }
185 break;
186 default:
187 av_log(s, AV_LOG_ERROR, "unsupported stream type; compression_type=%i\n", compression_type);
188 return 0;
189 }
190
191 if (ea->sample_rate == -1)
192 ea->sample_rate = revision==3 ? 48000 : 22050;
193
194 return 1;
195}
196
197/*
198 * Process EACS sound header
199 * return 1 if success, 0 if invalid format, otherwise AVERROR_xxx
200 */
201static int process_audio_header_eacs(AVFormatContext *s)
202{
203 EaDemuxContext *ea = s->priv_data;
204 ByteIOContext *pb = s->pb;
205 int compression_type;
206
207 ea->sample_rate = ea->big_endian ? get_be32(pb) : get_le32(pb);
208 ea->bytes = get_byte(pb); /* 1=8-bit, 2=16-bit */
209 ea->num_channels = get_byte(pb);
210 compression_type = get_byte(pb);
211 url_fskip(pb, 13);
212
213 switch (compression_type) {
214 case 0:
215 switch (ea->bytes) {
216 case 1: ea->audio_codec = CODEC_ID_PCM_S8; break;
217 case 2: ea->audio_codec = CODEC_ID_PCM_S16LE; break;
218 }
219 break;
220 case 1: ea->audio_codec = CODEC_ID_PCM_MULAW; ea->bytes = 1; break;
221 case 2: ea->audio_codec = CODEC_ID_ADPCM_IMA_EA_EACS; break;
222 default:
223 av_log (s, AV_LOG_ERROR, "unsupported stream type; audio compression_type=%i\n", compression_type);
224 }
225
226 return 1;
227}
228
229/*
230 * Process SEAD sound header
231 * return 1 if success, 0 if invalid format, otherwise AVERROR_xxx
232 */
233static int process_audio_header_sead(AVFormatContext *s)
234{
235 EaDemuxContext *ea = s->priv_data;
236 ByteIOContext *pb = s->pb;
237
238 ea->sample_rate = get_le32(pb);
239 ea->bytes = get_le32(pb); /* 1=8-bit, 2=16-bit */
240 ea->num_channels = get_le32(pb);
241 ea->audio_codec = CODEC_ID_ADPCM_IMA_EA_SEAD;
242
243 return 1;
244}
245
246static int process_video_header_vp6(AVFormatContext *s)
247{
248 EaDemuxContext *ea = s->priv_data;
249 ByteIOContext *pb = s->pb;
250
251 url_fskip(pb, 16);
252 ea->time_base.den = get_le32(pb);
253 ea->time_base.num = get_le32(pb);
254 ea->video_codec = CODEC_ID_VP6;
255
256 return 1;
257}
258
259/*
260 * Process EA file header
261 * Returns 1 if the EA file is valid and successfully opened, 0 otherwise
262 */
263static int process_ea_header(AVFormatContext *s) {
264 uint32_t blockid, size = 0;
265 EaDemuxContext *ea = s->priv_data;
266 ByteIOContext *pb = s->pb;
267 int i;
268
269 for (i=0; i<5 && (!ea->audio_codec || !ea->video_codec); i++) {
270 unsigned int startpos = url_ftell(pb);
271 int err = 0;
272
273 blockid = get_le32(pb);
274 size = get_le32(pb);
275 if (i == 0)
276 ea->big_endian = size > 0x000FFFFF;
277 if (ea->big_endian)
278 size = bswap_32(size);
279
280 switch (blockid) {
281 case ISNh_TAG:
282 if (get_le32(pb) != EACS_TAG) {
283 av_log (s, AV_LOG_ERROR, "unknown 1SNh headerid\n");
284 return 0;
285 }
286 err = process_audio_header_eacs(s);
287 break;
288
289 case SCHl_TAG :
290 blockid = get_le32(pb);
291 if (blockid == GSTR_TAG) {
292 url_fskip(pb, 4);
293 } else if (blockid != PT00_TAG) {
294 av_log (s, AV_LOG_ERROR, "unknown SCHl headerid\n");
295 return 0;
296 }
297 err = process_audio_header_elements(s);
298 break;
299
300 case SEAD_TAG:
301 err = process_audio_header_sead(s);
302 break;
303
304 case MVIh_TAG :
305 ea->video_codec = CODEC_ID_CMV;
306 ea->time_base = (AVRational){0,0};
307 break;
308
309 case MVhd_TAG :
310 err = process_video_header_vp6(s);
311 break;
312 }
313
314 if (err < 0) {
315 av_log(s, AV_LOG_ERROR, "error parsing header: %i\n", err);
316 return err;
317 }
318
319 url_fseek(pb, startpos + size, SEEK_SET);
320 }
321
322 url_fseek(pb, 0, SEEK_SET);
323
324 return 1;
325}
326
327
328static int ea_probe(AVProbeData *p)
329{
330 switch (AV_RL32(&p->buf[0])) {
331 case ISNh_TAG:
332 case SCHl_TAG:
333 case SEAD_TAG:
334 case kVGT_TAG:
335 case MADk_TAG:
336 case MPCh_TAG:
337 case MVhd_TAG:
338 case MVIh_TAG:
339 return AVPROBE_SCORE_MAX;
340 }
341 return 0;
342}
343
344static int ea_read_header(AVFormatContext *s,
345 AVFormatParameters *ap)
346{
347 EaDemuxContext *ea = s->priv_data;
348 AVStream *st;
349
350 if (!process_ea_header(s))
351 return AVERROR(EIO);
352
353 if (ea->video_codec) {
354 /* initialize the video decoder stream */
355 st = av_new_stream(s, 0);
356 if (!st)
357 return AVERROR(ENOMEM);
358 ea->video_stream_index = st->index;
359 st->codec->codec_type = CODEC_TYPE_VIDEO;
360 st->codec->codec_id = ea->video_codec;
361 st->codec->codec_tag = 0; /* no fourcc */
362 st->codec->time_base = ea->time_base;
363 }
364
365 if (ea->audio_codec) {
366 /* initialize the audio decoder stream */
367 st = av_new_stream(s, 0);
368 if (!st)
369 return AVERROR(ENOMEM);
370 av_set_pts_info(st, 33, 1, ea->sample_rate);
371 st->codec->codec_type = CODEC_TYPE_AUDIO;
372 st->codec->codec_id = ea->audio_codec;
373 st->codec->codec_tag = 0; /* no tag */
374 st->codec->channels = ea->num_channels;
375 st->codec->sample_rate = ea->sample_rate;
376 st->codec->bits_per_sample = ea->bytes * 8;
377 st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
378 st->codec->bits_per_sample / 4;
379 st->codec->block_align = st->codec->channels*st->codec->bits_per_sample;
380 ea->audio_stream_index = st->index;
381 ea->audio_frame_counter = 0;
382 }
383
384 return 1;
385}
386
387static int ea_read_packet(AVFormatContext *s,
388 AVPacket *pkt)
389{
390 EaDemuxContext *ea = s->priv_data;
391 ByteIOContext *pb = s->pb;
392 int ret = 0;
393 int packet_read = 0;
394 unsigned int chunk_type, chunk_size;
395 int key = 0;
396
397 while (!packet_read) {
398 chunk_type = get_le32(pb);
399 chunk_size = (ea->big_endian ? get_be32(pb) : get_le32(pb)) - 8;
400
401 switch (chunk_type) {
402 /* audio data */
403 case ISNh_TAG:
404 /* header chunk also contains data; skip over the header portion*/
405 url_fskip(pb, 32);
406 chunk_size -= 32;
407 case ISNd_TAG:
408 case SCDl_TAG:
409 case SNDC_TAG:
410 if (!ea->audio_codec) {
411 url_fskip(pb, chunk_size);
412 break;
413 } else if (ea->audio_codec == CODEC_ID_PCM_S16LE_PLANAR) {
414 url_fskip(pb, 12); /* planar header */
415 chunk_size -= 12;
416 }
417 ret = av_get_packet(pb, pkt, chunk_size);
418 if (ret != chunk_size)
419 ret = AVERROR(EIO);
420 else {
421 pkt->stream_index = ea->audio_stream_index;
422 pkt->pts = 90000;
423 pkt->pts *= ea->audio_frame_counter;
424 pkt->pts /= ea->sample_rate;
425
426 switch (ea->audio_codec) {
427 case CODEC_ID_ADPCM_EA:
428 /* 2 samples/byte, 1 or 2 samples per frame depending
429 * on stereo; chunk also has 12-byte header */
430 ea->audio_frame_counter += ((chunk_size - 12) * 2) /
431 ea->num_channels;
432 break;
433 default:
434 ea->audio_frame_counter += chunk_size /
435 (ea->bytes * ea->num_channels);
436 }
437 }
438
439 packet_read = 1;
440 break;
441
442 /* ending tag */
443 case 0:
444 case ISNe_TAG:
445 case SCEl_TAG:
446 case SEND_TAG:
447 ret = AVERROR(EIO);
448 packet_read = 1;
449 break;
450
451 case MVIh_TAG:
452 key = PKT_FLAG_KEY;
453 case MVIf_TAG:
454 url_fseek(pb, -8, SEEK_CUR); // include chunk preamble
455 chunk_size += 8;
456 goto get_video_packet;
457
458 case MV0K_TAG:
459 key = PKT_FLAG_KEY;
460 case MV0F_TAG:
461get_video_packet:
462 ret = av_get_packet(pb, pkt, chunk_size);
463 if (ret != chunk_size)
464 ret = AVERROR_IO;
465 else {
466 pkt->stream_index = ea->video_stream_index;
467 pkt->flags |= key;
468 }
469 packet_read = 1;
470 break;
471
472 default:
473 url_fseek(pb, chunk_size, SEEK_CUR);
474 break;
475 }
476 }
477
478 return ret;
479}
480
481AVInputFormat ea_demuxer = {
482 "ea",
483 NULL_IF_CONFIG_SMALL("Electronic Arts Multimedia Format"),
484 sizeof(EaDemuxContext),
485 ea_probe,
486 ea_read_header,
487 ea_read_packet,
488};
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