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