add VP30 fourcc
[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 #ifdef CONFIG_ENCODERS
28 typedef struct AVIIentry {
29 unsigned int flags, pos, len;
30 } AVIIentry;
31
32 #define AVI_INDEX_CLUSTER_SIZE 16384
33
34 typedef struct AVIIndex {
35 offset_t indx_start;
36 int entry;
37 int ents_allocated;
38 AVIIentry** cluster;
39 } AVIIndex;
40
41 typedef struct {
42 offset_t riff_start, movi_list, odml_list;
43 offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
44 int audio_strm_length[MAX_STREAMS];
45 int riff_id;
46 int packet_count[MAX_STREAMS];
47
48 AVIIndex indexes[MAX_STREAMS];
49 } AVIContext;
50
51 static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
52 {
53 int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
54 int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
55 return &idx->cluster[cl][id];
56 }
57
58 offset_t start_tag(ByteIOContext *pb, const char *tag)
59 {
60 put_tag(pb, tag);
61 put_le32(pb, 0);
62 return url_ftell(pb);
63 }
64
65 void end_tag(ByteIOContext *pb, offset_t start)
66 {
67 offset_t pos;
68
69 pos = url_ftell(pb);
70 url_fseek(pb, start - 4, SEEK_SET);
71 put_le32(pb, (uint32_t)(pos - start));
72 url_fseek(pb, pos, SEEK_SET);
73 }
74 #endif //CONFIG_ENCODERS
75
76 /* Note: when encoding, the first matching tag is used, so order is
77 important if multiple tags possible for a given codec. */
78 const CodecTag codec_bmp_tags[] = {
79 { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
80
81 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
82 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
83 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
84 { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
85
86 /* added based on MPlayer */
87 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
88 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
89
90 { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4')},
91 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
92 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
93 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
94 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
95 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
96 { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
97
98 /* added based on MPlayer */
99 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
100 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
101 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
102 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
103 { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
104
105 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
106 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
107
108 /* added based on MPlayer */
109 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
110 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
111 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
112 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
113 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
114 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
115 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
116
117 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
118
119 /* added based on MPlayer */
120 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
121
122 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
123
124 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
125
126 /* added based on MPlayer */
127 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
128 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
129 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
130 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
131 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
132 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
133 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
134 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
135 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
136 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
137 { CODEC_ID_MPEG1VIDEO, 0x10000001 },
138 { CODEC_ID_MPEG2VIDEO, 0x10000002 },
139 { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
140 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
141 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
142 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
143 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
144 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
145 { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
146 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
147 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
148 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
149 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
150 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
151 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
152 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
153 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
154 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
155 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
156 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
157 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
158 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
159 { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
160 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
161 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
162 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
163 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
164 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
165 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
166 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
167 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
168 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
169 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
170 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
171 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
172 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
173 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
174 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
175 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
176 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
177 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
178 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
179 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
180 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
181 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
182 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
183 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
184 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
185 { CODEC_ID_RAWVIDEO, 0 },
186 { 0, 0 },
187 };
188
189 unsigned int codec_get_tag(const CodecTag *tags, int id)
190 {
191 while (tags->id != 0) {
192 if (tags->id == id)
193 return tags->tag;
194 tags++;
195 }
196 return 0;
197 }
198
199 static unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id)
200 {
201 while (tags->id != 0) {
202 if (!tags->invalid_asf && tags->id == id)
203 return tags->tag;
204 tags++;
205 }
206 return 0;
207 }
208
209 enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
210 {
211 while (tags->id != 0) {
212 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
213 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
214 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
215 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
216 return tags->id;
217 tags++;
218 }
219 return CODEC_ID_NONE;
220 }
221
222 unsigned int codec_get_bmp_tag(int id)
223 {
224 return codec_get_tag(codec_bmp_tags, id);
225 }
226
227 unsigned int codec_get_wav_tag(int id)
228 {
229 return codec_get_tag(codec_wav_tags, id);
230 }
231
232 enum CodecID codec_get_bmp_id(unsigned int tag)
233 {
234 return codec_get_id(codec_bmp_tags, tag);
235 }
236
237 enum CodecID codec_get_wav_id(unsigned int tag)
238 {
239 return codec_get_id(codec_wav_tags, tag);
240 }
241
242 #ifdef CONFIG_ENCODERS
243 /* BITMAPINFOHEADER header */
244 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
245 {
246 put_le32(pb, 40 + enc->extradata_size); /* size */
247 put_le32(pb, enc->width);
248 put_le32(pb, enc->height);
249 put_le16(pb, 1); /* planes */
250
251 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
252 /* compression type */
253 put_le32(pb, for_asf ? (enc->codec_tag ? enc->codec_tag : codec_get_asf_tag(tags, enc->codec_id)) : enc->codec_tag); //
254 put_le32(pb, enc->width * enc->height * 3);
255 put_le32(pb, 0);
256 put_le32(pb, 0);
257 put_le32(pb, 0);
258 put_le32(pb, 0);
259
260 put_buffer(pb, enc->extradata, enc->extradata_size);
261
262 if (enc->extradata_size & 1)
263 put_byte(pb, 0);
264 }
265
266 static void parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
267 {
268 int gcd;
269
270 *au_ssize= stream->block_align;
271 if(stream->frame_size && stream->sample_rate){
272 *au_scale=stream->frame_size;
273 *au_rate= stream->sample_rate;
274 }else if(stream->codec_type == CODEC_TYPE_VIDEO){
275 *au_scale= stream->time_base.num;
276 *au_rate = stream->time_base.den;
277 }else{
278 *au_scale= stream->block_align ? stream->block_align*8 : 8;
279 *au_rate = stream->bit_rate;
280 }
281 gcd= ff_gcd(*au_scale, *au_rate);
282 *au_scale /= gcd;
283 *au_rate /= gcd;
284 }
285
286 static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
287 const char* riff_tag, const char* list_tag)
288 {
289 offset_t loff;
290 int i;
291
292 avi->riff_id++;
293 for (i=0; i<MAX_STREAMS; i++)
294 avi->indexes[i].entry = 0;
295
296 avi->riff_start = start_tag(pb, "RIFF");
297 put_tag(pb, riff_tag);
298 loff = start_tag(pb, "LIST");
299 put_tag(pb, list_tag);
300 return loff;
301 }
302
303 static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
304 enum CodecType type)
305 {
306 tag[0] = '0';
307 tag[1] = '0' + index;
308 if (type == CODEC_TYPE_VIDEO) {
309 tag[2] = 'd';
310 tag[3] = 'c';
311 } else {
312 tag[2] = 'w';
313 tag[3] = 'b';
314 }
315 tag[4] = '\0';
316 return tag;
317 }
318
319 static int avi_write_header(AVFormatContext *s)
320 {
321 AVIContext *avi = s->priv_data;
322 ByteIOContext *pb = &s->pb;
323 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
324 AVCodecContext *stream, *video_enc;
325 offset_t list1, list2, strh, strf;
326
327 /* header list */
328 avi->riff_id = 0;
329 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
330
331 /* avi header */
332 put_tag(pb, "avih");
333 put_le32(pb, 14 * 4);
334 bitrate = 0;
335
336 video_enc = NULL;
337 for(n=0;n<s->nb_streams;n++) {
338 stream = &s->streams[n]->codec;
339 bitrate += stream->bit_rate;
340 if (stream->codec_type == CODEC_TYPE_VIDEO)
341 video_enc = stream;
342 }
343
344 nb_frames = 0;
345
346 if(video_enc){
347 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
348 } else {
349 put_le32(pb, 0);
350 }
351 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
352 put_le32(pb, 0); /* padding */
353 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
354 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
355 put_le32(pb, nb_frames); /* nb frames, filled later */
356 put_le32(pb, 0); /* initial frame */
357 put_le32(pb, s->nb_streams); /* nb streams */
358 put_le32(pb, 1024 * 1024); /* suggested buffer size */
359 if(video_enc){
360 put_le32(pb, video_enc->width);
361 put_le32(pb, video_enc->height);
362 } else {
363 put_le32(pb, 0);
364 put_le32(pb, 0);
365 }
366 put_le32(pb, 0); /* reserved */
367 put_le32(pb, 0); /* reserved */
368 put_le32(pb, 0); /* reserved */
369 put_le32(pb, 0); /* reserved */
370
371 /* stream list */
372 for(i=0;i<n;i++) {
373 list2 = start_tag(pb, "LIST");
374 put_tag(pb, "strl");
375
376 stream = &s->streams[i]->codec;
377
378 /* FourCC should really be set by the codec itself */
379 if (! stream->codec_tag) {
380 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
381 }
382
383 /* stream generic header */
384 strh = start_tag(pb, "strh");
385 switch(stream->codec_type) {
386 case CODEC_TYPE_VIDEO:
387 put_tag(pb, "vids");
388 put_le32(pb, stream->codec_tag);
389 put_le32(pb, 0); /* flags */
390 put_le16(pb, 0); /* priority */
391 put_le16(pb, 0); /* language */
392 put_le32(pb, 0); /* initial frame */
393
394 put_le32(pb, stream->time_base.num); /* scale */
395 put_le32(pb, stream->time_base.den); /* rate */
396 av_set_pts_info(s->streams[i], 64, stream->time_base.num, stream->time_base.den);
397
398 put_le32(pb, 0); /* start */
399 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
400 put_le32(pb, nb_frames); /* length, XXX: fill later */
401 put_le32(pb, 1024 * 1024); /* suggested buffer size */
402 put_le32(pb, -1); /* quality */
403 put_le32(pb, 0); /* sample size */
404 put_le16(pb, 0);
405 put_le16(pb, 0);
406 put_le16(pb, stream->width);
407 put_le16(pb, stream->height);
408 break;
409 case CODEC_TYPE_AUDIO:
410 put_tag(pb, "auds");
411 put_le32(pb, 1); /* tag */
412 put_le32(pb, 0); /* flags */
413 put_le16(pb, 0); /* priority */
414 put_le16(pb, 0); /* language */
415 put_le32(pb, 0); /* initial frame */
416 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
417 put_le32(pb, au_scale); /* scale */
418 put_le32(pb, au_byterate); /* rate */
419 av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
420 put_le32(pb, 0); /* start */
421 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
422 put_le32(pb, 0); /* length, XXX: filled later */
423 put_le32(pb, 12 * 1024); /* suggested buffer size */
424 put_le32(pb, -1); /* quality */
425 put_le32(pb, au_ssize); /* sample size */
426 put_le32(pb, 0);
427 put_le32(pb, 0);
428 break;
429 default:
430 return -1;
431 }
432 end_tag(pb, strh);
433
434 strf = start_tag(pb, "strf");
435 switch(stream->codec_type) {
436 case CODEC_TYPE_VIDEO:
437 put_bmp_header(pb, stream, codec_bmp_tags, 0);
438 break;
439 case CODEC_TYPE_AUDIO:
440 if (put_wav_header(pb, stream) < 0) {
441 av_free(avi);
442 return -1;
443 }
444 break;
445 default:
446 return -1;
447 }
448 end_tag(pb, strf);
449
450 if (!url_is_streamed(pb)) {
451 unsigned char tag[5];
452 int j;
453
454 /* Starting to lay out AVI OpenDML master index.
455 * We want to make it JUNK entry for now, since we'd
456 * like to get away without making AVI an OpenDML one
457 * for compatibility reasons.
458 */
459 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
460 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
461 put_le16(pb, 4); /* wLongsPerEntry */
462 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
463 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
464 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
465 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
466 /* dwChunkId */
467 put_le64(pb, 0); /* dwReserved[3]
468 put_le32(pb, 0); Must be 0. */
469 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
470 put_le64(pb, 0);
471 end_tag(pb, avi->indexes[i].indx_start);
472 }
473
474 end_tag(pb, list2);
475 }
476
477 if (!url_is_streamed(pb)) {
478 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
479 avi->odml_list = start_tag(pb, "JUNK");
480 put_tag(pb, "odml");
481 put_tag(pb, "dmlh");
482 put_le32(pb, 248);
483 for (i = 0; i < 248; i+= 4)
484 put_le32(pb, 0);
485 end_tag(pb, avi->odml_list);
486 }
487
488 end_tag(pb, list1);
489
490 avi->movi_list = start_tag(pb, "LIST");
491 put_tag(pb, "movi");
492
493 put_flush_packet(pb);
494
495 return 0;
496 }
497
498 static int avi_write_ix(AVFormatContext *s)
499 {
500 ByteIOContext *pb = &s->pb;
501 AVIContext *avi = s->priv_data;
502 unsigned char tag[5];
503 unsigned char ix_tag[] = "ix00";
504 int i, j;
505
506 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
507 return -1;
508
509 for (i=0;i<s->nb_streams;i++) {
510 offset_t ix, pos;
511
512 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
513 ix_tag[3] = '0' + i;
514
515 /* Writing AVI OpenDML leaf index chunk */
516 ix = url_ftell(pb);
517 put_tag(pb, &ix_tag[0]); /* ix?? */
518 put_le32(pb, avi->indexes[i].entry * 8 + 24);
519 /* chunk size */
520 put_le16(pb, 2); /* wLongsPerEntry */
521 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
522 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
523 put_le32(pb, avi->indexes[i].entry);
524 /* nEntriesInUse */
525 put_tag(pb, &tag[0]); /* dwChunkId */
526 put_le64(pb, avi->movi_list);/* qwBaseOffset */
527 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
528
529 for (j=0; j<avi->indexes[i].entry; j++) {
530 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
531 put_le32(pb, ie->pos + 8);
532 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
533 (ie->flags & 0x10 ? 0 : 0x80000000));
534 }
535 put_flush_packet(pb);
536 pos = url_ftell(pb);
537
538 /* Updating one entry in the AVI OpenDML master index */
539 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
540 put_tag(pb, "indx"); /* enabling this entry */
541 url_fskip(pb, 8);
542 put_le32(pb, avi->riff_id); /* nEntriesInUse */
543 url_fskip(pb, 16*avi->riff_id);
544 put_le64(pb, ix); /* qwOffset */
545 put_le32(pb, pos - ix); /* dwSize */
546 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
547
548 url_fseek(pb, pos, SEEK_SET);
549 }
550 return 0;
551 }
552
553 static int avi_write_idx1(AVFormatContext *s)
554 {
555 ByteIOContext *pb = &s->pb;
556 AVIContext *avi = s->priv_data;
557 offset_t file_size, idx_chunk;
558 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
559 AVCodecContext *stream;
560 unsigned char tag[5];
561
562 if (!url_is_streamed(pb)) {
563 AVIIentry* ie = 0, *tie;
564 int entry[MAX_STREAMS];
565 int empty, stream_id = -1;
566
567 idx_chunk = start_tag(pb, "idx1");
568 memset(&entry[0], 0, sizeof(entry));
569 do {
570 empty = 1;
571 for (i=0; i<s->nb_streams; i++) {
572 if (avi->indexes[i].entry <= entry[i])
573 continue;
574
575 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
576 if (empty || tie->pos < ie->pos) {
577 ie = tie;
578 stream_id = i;
579 }
580 empty = 0;
581 }
582 if (!empty) {
583 avi_stream2fourcc(&tag[0], stream_id,
584 s->streams[stream_id]->codec.codec_type);
585 put_tag(pb, &tag[0]);
586 put_le32(pb, ie->flags);
587 put_le32(pb, ie->pos);
588 put_le32(pb, ie->len);
589 entry[stream_id]++;
590 }
591 } while (!empty);
592 end_tag(pb, idx_chunk);
593
594 /* Fill in frame/sample counters */
595 file_size = url_ftell(pb);
596 nb_frames = 0;
597 for(n=0;n<s->nb_streams;n++) {
598 if (avi->frames_hdr_strm[n] != 0) {
599 stream = &s->streams[n]->codec;
600 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
601 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
602 if (au_ssize == 0) {
603 put_le32(pb, stream->frame_number);
604 nb_frames += stream->frame_number;
605 } else {
606 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
607 }
608 }
609 }
610 if (avi->frames_hdr_all != 0) {
611 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
612 put_le32(pb, nb_frames);
613 }
614 url_fseek(pb, file_size, SEEK_SET);
615 }
616 return 0;
617 }
618
619 static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
620 {
621 AVIContext *avi = s->priv_data;
622 ByteIOContext *pb = &s->pb;
623 unsigned char tag[5];
624 unsigned int flags=0;
625 const int stream_index= pkt->stream_index;
626 AVCodecContext *enc= &s->streams[stream_index]->codec;
627 int size= pkt->size;
628
629 // av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
630 while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
631 AVPacket empty_packet;
632
633 av_init_packet(&empty_packet);
634 empty_packet.size= 0;
635 empty_packet.data= NULL;
636 empty_packet.stream_index= stream_index;
637 avi_write_packet(s, &empty_packet);
638 // av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
639 }
640 avi->packet_count[stream_index]++;
641
642 if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) {
643 avi_write_ix(s);
644 end_tag(pb, avi->movi_list);
645
646 if (avi->riff_id == 1)
647 avi_write_idx1(s);
648
649 end_tag(pb, avi->riff_start);
650 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
651 }
652
653 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
654 if(pkt->flags&PKT_FLAG_KEY)
655 flags = 0x10;
656 if (enc->codec_type == CODEC_TYPE_AUDIO) {
657 avi->audio_strm_length[stream_index] += size;
658 }
659
660 if (!url_is_streamed(&s->pb)) {
661 AVIIndex* idx = &avi->indexes[stream_index];
662 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
663 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
664 if (idx->ents_allocated <= idx->entry) {
665 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
666 if (!idx->cluster)
667 return -1;
668 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
669 if (!idx->cluster[cl])
670 return -1;
671 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
672 }
673
674 idx->cluster[cl][id].flags = flags;
675 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
676 idx->cluster[cl][id].len = size;
677 idx->entry++;
678 }
679
680 put_buffer(pb, tag, 4);
681 put_le32(pb, size);
682 put_buffer(pb, pkt->data, size);
683 if (size & 1)
684 put_byte(pb, 0);
685
686 put_flush_packet(pb);
687 return 0;
688 }
689
690 static int avi_write_trailer(AVFormatContext *s)
691 {
692 AVIContext *avi = s->priv_data;
693 ByteIOContext *pb = &s->pb;
694 int res = 0;
695 int i, j, n, nb_frames;
696 offset_t file_size;
697
698 if (avi->riff_id == 1) {
699 end_tag(pb, avi->movi_list);
700 res = avi_write_idx1(s);
701 end_tag(pb, avi->riff_start);
702 } else {
703 avi_write_ix(s);
704 end_tag(pb, avi->movi_list);
705 end_tag(pb, avi->riff_start);
706
707 file_size = url_ftell(pb);
708 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
709 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
710 url_fskip(pb, 16);
711
712 for (n=nb_frames=0;n<s->nb_streams;n++) {
713 AVCodecContext *stream = &s->streams[n]->codec;
714 if (stream->codec_type == CODEC_TYPE_VIDEO) {
715 if (nb_frames < stream->frame_number)
716 nb_frames = stream->frame_number;
717 } else {
718 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
719 nb_frames += stream->frame_number;
720 }
721 }
722 }
723 put_le32(pb, nb_frames);
724 url_fseek(pb, file_size, SEEK_SET);
725 }
726 put_flush_packet(pb);
727
728 for (i=0; i<MAX_STREAMS; i++) {
729 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
730 av_free(avi->indexes[i].cluster[j]);
731 av_free(avi->indexes[i].cluster);
732 avi->indexes[i].cluster = NULL;
733 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
734 }
735
736 return res;
737 }
738
739 static AVOutputFormat avi_oformat = {
740 "avi",
741 "avi format",
742 "video/x-msvideo",
743 "avi",
744 sizeof(AVIContext),
745 CODEC_ID_MP2,
746 CODEC_ID_MPEG4,
747 avi_write_header,
748 avi_write_packet,
749 avi_write_trailer,
750 };
751
752 int avienc_init(void)
753 {
754 av_register_output_format(&avi_oformat);
755 return 0;
756 }
757 #endif //CONFIG_ENCODERS