New demuxers: Sega FILM/CPK, Westwood VQA & AUD; new decoders: MS RLE &
[libav.git] / libavformat / avienc.c
1 /*
2 * AVI encoder.
3 * Copyright (c) 2000 Fabrice Bellard.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19 #include "avformat.h"
20 #include "avi.h"
21
22 /*
23 * TODO:
24 * - fill all fields if non streamed (nb_frames for example)
25 */
26
27 typedef struct AVIIentry {
28 unsigned int flags, pos, len;
29 } AVIIentry;
30
31 #define AVI_INDEX_CLUSTER_SIZE 16384
32
33 typedef struct AVIIndex {
34 offset_t indx_start;
35 int entry;
36 int ents_allocated;
37 AVIIentry** cluster;
38 } AVIIndex;
39
40 typedef struct {
41 offset_t riff_start, movi_list, odml_list;
42 offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
43 int audio_strm_length[MAX_STREAMS];
44 int riff_id;
45
46 AVIIndex indexes[MAX_STREAMS];
47 } AVIContext;
48
49 static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
50 {
51 int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
52 int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
53 return &idx->cluster[cl][id];
54 }
55
56 offset_t start_tag(ByteIOContext *pb, const char *tag)
57 {
58 put_tag(pb, tag);
59 put_le32(pb, 0);
60 return url_ftell(pb);
61 }
62
63 void end_tag(ByteIOContext *pb, offset_t start)
64 {
65 offset_t pos;
66
67 pos = url_ftell(pb);
68 url_fseek(pb, start - 4, SEEK_SET);
69 put_le32(pb, (uint32_t)(pos - start));
70 url_fseek(pb, pos, SEEK_SET);
71 }
72
73 /* Note: when encoding, the first matching tag is used, so order is
74 important if multiple tags possible for a given codec. */
75 const CodecTag codec_bmp_tags[] = {
76 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
77 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
78 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
79
80 /* added based on MPlayer */
81 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
82 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
83
84 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
85 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
86 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
87 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
88 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
89 { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
90
91 /* added based on MPlayer */
92 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
93 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
94 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
95 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
96
97 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
98 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
99
100 /* added based on MPlayer */
101 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
102 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
103 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
104 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
105 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
106 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
107 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
108
109 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
110
111 /* added based on MPlayer */
112 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
113
114 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
115
116 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
117
118 /* added based on MPlayer */
119 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
120 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
121 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
122 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
123 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
124 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
125 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
126 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
127 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
128 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
129 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
130 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
131 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
132 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
133 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
134 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
135 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
136 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
137 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
138 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
139 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
140 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
141 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
142 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
143 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
144 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
145 { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
146 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
147 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
148 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
149 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
150 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
151 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
152 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
153 { 0, 0 },
154 };
155
156 unsigned int codec_get_tag(const CodecTag *tags, int id)
157 {
158 while (tags->id != 0) {
159 if (tags->id == id)
160 return tags->tag;
161 tags++;
162 }
163 return 0;
164 }
165
166 static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
167 {
168 while (tags->id != 0) {
169 if (!tags->invalid_asf && tags->id == id)
170 return tags->tag;
171 tags++;
172 }
173 return 0;
174 }
175
176 enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
177 {
178 while (tags->id != 0) {
179 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
180 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
181 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
182 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
183 return tags->id;
184 tags++;
185 }
186 return CODEC_ID_NONE;
187 }
188
189 unsigned int codec_get_bmp_tag(int id)
190 {
191 return codec_get_tag(codec_bmp_tags, id);
192 }
193
194 unsigned int codec_get_wav_tag(int id)
195 {
196 return codec_get_tag(codec_wav_tags, id);
197 }
198
199 enum CodecID codec_get_bmp_id(unsigned int tag)
200 {
201 return codec_get_id(codec_bmp_tags, tag);
202 }
203
204 enum CodecID codec_get_wav_id(unsigned int tag)
205 {
206 return codec_get_id(codec_wav_tags, tag);
207 }
208
209 /* BITMAPINFOHEADER header */
210 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
211 {
212 put_le32(pb, 40 + enc->extradata_size); /* size */
213 put_le32(pb, enc->width);
214 put_le32(pb, enc->height);
215 put_le16(pb, 1); /* planes */
216
217 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
218 /* compression type */
219 put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag);
220 put_le32(pb, enc->width * enc->height * 3);
221 put_le32(pb, 0);
222 put_le32(pb, 0);
223 put_le32(pb, 0);
224 put_le32(pb, 0);
225
226 put_buffer(pb, enc->extradata, enc->extradata_size);
227
228 if (enc->extradata_size & 1)
229 put_byte(pb, 0);
230 }
231
232 static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
233 {
234 switch(stream->codec_id) {
235 case CODEC_ID_PCM_S16LE:
236 *au_scale = *au_ssize = 2*stream->channels;
237 *au_byterate = *au_ssize * stream->sample_rate;
238 break;
239 case CODEC_ID_PCM_U8:
240 case CODEC_ID_PCM_ALAW:
241 case CODEC_ID_PCM_MULAW:
242 *au_scale = *au_ssize = stream->channels;
243 *au_byterate = *au_ssize * stream->sample_rate;
244 break;
245 case CODEC_ID_MP2:
246 *au_ssize = 1;
247 *au_scale = 1;
248 *au_byterate = stream->bit_rate / 8;
249 case CODEC_ID_MP3:
250 *au_ssize = 1;
251 *au_scale = 1;
252 *au_byterate = stream->bit_rate / 8;
253 default:
254 *au_ssize = 1;
255 *au_scale = 1;
256 *au_byterate = stream->bit_rate / 8;
257 break;
258 }
259 }
260
261 static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
262 const char* riff_tag, const char* list_tag)
263 {
264 offset_t loff;
265 int i;
266
267 avi->riff_id++;
268 for (i=0; i<MAX_STREAMS; i++)
269 avi->indexes[i].entry = 0;
270
271 avi->riff_start = start_tag(pb, "RIFF");
272 put_tag(pb, riff_tag);
273 loff = start_tag(pb, "LIST");
274 put_tag(pb, list_tag);
275 return loff;
276 }
277
278 static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
279 enum CodecType type)
280 {
281 tag[0] = '0';
282 tag[1] = '0' + index;
283 if (type == CODEC_TYPE_VIDEO) {
284 tag[2] = 'd';
285 tag[3] = 'c';
286 } else {
287 tag[2] = 'w';
288 tag[3] = 'b';
289 }
290 tag[4] = '\0';
291 return tag;
292 }
293
294 static int avi_write_header(AVFormatContext *s)
295 {
296 AVIContext *avi = s->priv_data;
297 ByteIOContext *pb = &s->pb;
298 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
299 AVCodecContext *stream, *video_enc;
300 offset_t list1, list2, strh, strf;
301
302 /* header list */
303 avi->riff_id = 0;
304 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
305
306 /* avi header */
307 put_tag(pb, "avih");
308 put_le32(pb, 14 * 4);
309 bitrate = 0;
310
311 video_enc = NULL;
312 for(n=0;n<s->nb_streams;n++) {
313 stream = &s->streams[n]->codec;
314 bitrate += stream->bit_rate;
315 if (stream->codec_type == CODEC_TYPE_VIDEO)
316 video_enc = stream;
317 }
318
319 nb_frames = 0;
320
321 if(video_enc){
322 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
323 } else {
324 put_le32(pb, 0);
325 }
326 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
327 put_le32(pb, 0); /* padding */
328 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
329 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
330 put_le32(pb, nb_frames); /* nb frames, filled later */
331 put_le32(pb, 0); /* initial frame */
332 put_le32(pb, s->nb_streams); /* nb streams */
333 put_le32(pb, 1024 * 1024); /* suggested buffer size */
334 if(video_enc){
335 put_le32(pb, video_enc->width);
336 put_le32(pb, video_enc->height);
337 } else {
338 put_le32(pb, 0);
339 put_le32(pb, 0);
340 }
341 put_le32(pb, 0); /* reserved */
342 put_le32(pb, 0); /* reserved */
343 put_le32(pb, 0); /* reserved */
344 put_le32(pb, 0); /* reserved */
345
346 /* stream list */
347 for(i=0;i<n;i++) {
348 list2 = start_tag(pb, "LIST");
349 put_tag(pb, "strl");
350
351 stream = &s->streams[i]->codec;
352
353 /* FourCC should really be set by the codec itself */
354 if (! stream->codec_tag) {
355 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
356 }
357
358 /* stream generic header */
359 strh = start_tag(pb, "strh");
360 switch(stream->codec_type) {
361 case CODEC_TYPE_VIDEO:
362 put_tag(pb, "vids");
363 put_le32(pb, stream->codec_tag);
364 put_le32(pb, 0); /* flags */
365 put_le16(pb, 0); /* priority */
366 put_le16(pb, 0); /* language */
367 put_le32(pb, 0); /* initial frame */
368
369 put_le32(pb, stream->frame_rate_base); /* scale */
370 put_le32(pb, stream->frame_rate); /* rate */
371
372 put_le32(pb, 0); /* start */
373 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
374 put_le32(pb, nb_frames); /* length, XXX: fill later */
375 put_le32(pb, 1024 * 1024); /* suggested buffer size */
376 put_le32(pb, -1); /* quality */
377 put_le32(pb, stream->width * stream->height * 3); /* sample size */
378 put_le16(pb, 0);
379 put_le16(pb, 0);
380 put_le16(pb, stream->width);
381 put_le16(pb, stream->height);
382 break;
383 case CODEC_TYPE_AUDIO:
384 put_tag(pb, "auds");
385 put_le32(pb, 1); /* tag */
386 put_le32(pb, 0); /* flags */
387 put_le16(pb, 0); /* priority */
388 put_le16(pb, 0); /* language */
389 put_le32(pb, 0); /* initial frame */
390 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
391 put_le32(pb, au_scale); /* scale */
392 put_le32(pb, au_byterate); /* rate */
393 put_le32(pb, 0); /* start */
394 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
395 put_le32(pb, 0); /* length, XXX: filled later */
396 put_le32(pb, 12 * 1024); /* suggested buffer size */
397 put_le32(pb, -1); /* quality */
398 put_le32(pb, au_ssize); /* sample size */
399 put_le32(pb, 0);
400 put_le32(pb, 0);
401 break;
402 default:
403 av_abort();
404 }
405 end_tag(pb, strh);
406
407 strf = start_tag(pb, "strf");
408 switch(stream->codec_type) {
409 case CODEC_TYPE_VIDEO:
410 put_bmp_header(pb, stream, codec_bmp_tags, 0);
411 break;
412 case CODEC_TYPE_AUDIO:
413 if (put_wav_header(pb, stream) < 0) {
414 av_free(avi);
415 return -1;
416 }
417 break;
418 default:
419 av_abort();
420 }
421 end_tag(pb, strf);
422
423 if (!url_is_streamed(pb)) {
424 unsigned char tag[5];
425 int j;
426
427 /* Starting to lay out AVI OpenDML master index.
428 * We want to make it JUNK entry for now, since we'd
429 * like to get away without making AVI an OpenDML one
430 * for compatibility reasons.
431 */
432 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
433 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
434 put_le16(pb, 4); /* wLongsPerEntry */
435 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
436 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
437 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
438 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
439 /* dwChunkId */
440 put_le64(pb, 0); /* dwReserved[3]
441 put_le32(pb, 0); Must be 0. */
442 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
443 put_le64(pb, 0);
444 end_tag(pb, avi->indexes[i].indx_start);
445 }
446
447 end_tag(pb, list2);
448 }
449
450 if (!url_is_streamed(pb)) {
451 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
452 avi->odml_list = start_tag(pb, "JUNK");
453 put_tag(pb, "odml");
454 put_tag(pb, "dmlh");
455 put_le32(pb, 248);
456 for (i = 0; i < 248; i+= 4)
457 put_le32(pb, 0);
458 end_tag(pb, avi->odml_list);
459 }
460
461 end_tag(pb, list1);
462
463 avi->movi_list = start_tag(pb, "LIST");
464 put_tag(pb, "movi");
465
466 put_flush_packet(pb);
467
468 return 0;
469 }
470
471 static int avi_write_ix(AVFormatContext *s)
472 {
473 ByteIOContext *pb = &s->pb;
474 AVIContext *avi = s->priv_data;
475 unsigned char tag[5];
476 unsigned char ix_tag[] = "ix00";
477 int i, j;
478
479 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
480 return -1;
481
482 for (i=0;i<s->nb_streams;i++) {
483 offset_t ix, pos;
484
485 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
486 ix_tag[3] = '0' + i;
487
488 /* Writing AVI OpenDML leaf index chunk */
489 ix = url_ftell(pb);
490 put_tag(pb, &ix_tag[0]); /* ix?? */
491 put_le32(pb, avi->indexes[i].entry * 8 + 24);
492 /* chunk size */
493 put_le16(pb, 2); /* wLongsPerEntry */
494 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
495 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
496 put_le32(pb, avi->indexes[i].entry);
497 /* nEntriesInUse */
498 put_tag(pb, &tag[0]); /* dwChunkId */
499 put_le64(pb, avi->movi_list);/* qwBaseOffset */
500 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
501
502 for (j=0; j<avi->indexes[i].entry; j++) {
503 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
504 put_le32(pb, ie->pos + 8);
505 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
506 (ie->flags & 0x10 ? 0 : 0x80000000));
507 }
508 put_flush_packet(pb);
509 pos = url_ftell(pb);
510
511 /* Updating one entry in the AVI OpenDML master index */
512 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
513 put_tag(pb, "indx"); /* enabling this entry */
514 url_fskip(pb, 8);
515 put_le32(pb, avi->riff_id); /* nEntriesInUse */
516 url_fskip(pb, 16*avi->riff_id);
517 put_le64(pb, ix); /* qwOffset */
518 put_le32(pb, pos - ix); /* dwSize */
519 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
520
521 url_fseek(pb, pos, SEEK_SET);
522 }
523 return 0;
524 }
525
526 static int avi_write_idx1(AVFormatContext *s)
527 {
528 ByteIOContext *pb = &s->pb;
529 AVIContext *avi = s->priv_data;
530 offset_t file_size, idx_chunk;
531 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
532 AVCodecContext *stream;
533 unsigned char tag[5];
534
535 if (!url_is_streamed(pb)) {
536 AVIIentry* ie = 0, *tie;
537 int entry[MAX_STREAMS];
538 int empty, stream_id = -1;
539
540 idx_chunk = start_tag(pb, "idx1");
541 memset(&entry[0], 0, sizeof(entry));
542 do {
543 empty = 1;
544 for (i=0; i<s->nb_streams; i++) {
545 if (avi->indexes[i].entry <= entry[i])
546 continue;
547
548 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
549 if (empty || tie->pos < ie->pos) {
550 ie = tie;
551 stream_id = i;
552 }
553 empty = 0;
554 }
555 if (!empty) {
556 avi_stream2fourcc(&tag[0], stream_id,
557 s->streams[stream_id]->codec.codec_type);
558 put_tag(pb, &tag[0]);
559 put_le32(pb, ie->flags);
560 put_le32(pb, ie->pos);
561 put_le32(pb, ie->len);
562 entry[stream_id]++;
563 }
564 } while (!empty);
565 end_tag(pb, idx_chunk);
566
567 /* Fill in frame/sample counters */
568 file_size = url_ftell(pb);
569 nb_frames = 0;
570 for(n=0;n<s->nb_streams;n++) {
571 if (avi->frames_hdr_strm[n] != 0) {
572 stream = &s->streams[n]->codec;
573 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
574 if (stream->codec_type == CODEC_TYPE_VIDEO) {
575 put_le32(pb, stream->frame_number);
576 if (nb_frames < stream->frame_number)
577 nb_frames = stream->frame_number;
578 } else {
579 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
580 put_le32(pb, stream->frame_number);
581 nb_frames += stream->frame_number;
582 } else {
583 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
584 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
585 }
586 }
587 }
588 }
589 if (avi->frames_hdr_all != 0) {
590 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
591 put_le32(pb, nb_frames);
592 }
593 url_fseek(pb, file_size, SEEK_SET);
594 }
595 return 0;
596 }
597
598 static int avi_write_packet(AVFormatContext *s, int stream_index,
599 const uint8_t *buf, int size, int64_t pts)
600 {
601 AVIContext *avi = s->priv_data;
602 ByteIOContext *pb = &s->pb;
603 unsigned char tag[5];
604 unsigned int flags;
605 AVCodecContext *enc;
606
607 if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) {
608 avi_write_ix(s);
609 end_tag(pb, avi->movi_list);
610
611 if (avi->riff_id == 1)
612 avi_write_idx1(s);
613
614 end_tag(pb, avi->riff_start);
615 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
616 }
617
618 enc = &s->streams[stream_index]->codec;
619 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
620 if (enc->codec_type == CODEC_TYPE_AUDIO) {
621 avi->audio_strm_length[stream_index] += size;
622 flags = 0x10;
623 } else
624 flags = enc->coded_frame->key_frame ? 0x10 : 0x00;
625
626 if (!url_is_streamed(&s->pb)) {
627 AVIIndex* idx = &avi->indexes[stream_index];
628 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
629 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
630 if (idx->ents_allocated <= idx->entry) {
631 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
632 if (!idx->cluster)
633 return -1;
634 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
635 if (!idx->cluster[cl])
636 return -1;
637 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
638 }
639
640 idx->cluster[cl][id].flags = flags;
641 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
642 idx->cluster[cl][id].len = size;
643 idx->entry++;
644 }
645
646 put_buffer(pb, tag, 4);
647 put_le32(pb, size);
648 put_buffer(pb, buf, size);
649 if (size & 1)
650 put_byte(pb, 0);
651
652 put_flush_packet(pb);
653 return 0;
654 }
655
656 static int avi_write_trailer(AVFormatContext *s)
657 {
658 AVIContext *avi = s->priv_data;
659 ByteIOContext *pb = &s->pb;
660 int res = 0;
661 int i, j, n, nb_frames;
662 offset_t file_size;
663
664 if (avi->riff_id == 1) {
665 end_tag(pb, avi->movi_list);
666 res = avi_write_idx1(s);
667 end_tag(pb, avi->riff_start);
668 } else {
669 avi_write_ix(s);
670 end_tag(pb, avi->movi_list);
671 end_tag(pb, avi->riff_start);
672
673 file_size = url_ftell(pb);
674 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
675 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
676 url_fskip(pb, 16);
677
678 for (n=nb_frames=0;n<s->nb_streams;n++) {
679 AVCodecContext *stream = &s->streams[n]->codec;
680 if (stream->codec_type == CODEC_TYPE_VIDEO) {
681 if (nb_frames < stream->frame_number)
682 nb_frames = stream->frame_number;
683 } else {
684 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
685 nb_frames += stream->frame_number;
686 }
687 }
688 }
689 put_le32(pb, nb_frames);
690 url_fseek(pb, file_size, SEEK_SET);
691 }
692 put_flush_packet(pb);
693
694 for (i=0; i<MAX_STREAMS; i++) {
695 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
696 av_free(avi->indexes[i].cluster[j]);
697 av_free(avi->indexes[i].cluster);
698 avi->indexes[i].cluster = NULL;
699 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
700 }
701
702 return res;
703 }
704
705 static AVOutputFormat avi_oformat = {
706 "avi",
707 "avi format",
708 "video/x-msvideo",
709 "avi",
710 sizeof(AVIContext),
711 CODEC_ID_MP2,
712 CODEC_ID_MPEG4,
713 avi_write_header,
714 avi_write_packet,
715 avi_write_trailer,
716 };
717
718 int avienc_init(void)
719 {
720 av_register_output_format(&avi_oformat);
721 return 0;
722 }