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source: vbox/trunk/src/libs/ffmpeg-20060710/libavformat/avienc.c@ 7692

Last change on this file since 7692 was 5776, checked in by vboxsync, 17 years ago

ffmpeg: exported to OSE
File size: 26.1 KB
Line 
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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_MUXERS
28typedef struct AVIIentry {
29 unsigned int flags, pos, len;
30} AVIIentry;
31
32#define AVI_INDEX_CLUSTER_SIZE 16384
33
34typedef struct AVIIndex {
35 offset_t indx_start;
36 int entry;
37 int ents_allocated;
38 AVIIentry** cluster;
39} AVIIndex;
40
41typedef 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
51static 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
58offset_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
65void 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_MUXERS
75
76/* Note: when encoding, the first matching tag is used, so order is
77 important if multiple tags possible for a given codec. */
78const CodecTag codec_bmp_tags[] = {
79 { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
80 { CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
81 { CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
82 { CODEC_ID_H264, MKTAG('x', '2', '6', '4') },
83 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
84 { CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') },
85
86 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
87 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
88 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
89 { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
90
91 /* added based on MPlayer */
92 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
93 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
94
95 { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4')},
96 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
97 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
98 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
99 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
100 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
101 { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
102
103 /* added based on MPlayer */
104 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
105 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
106 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
107 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
108 { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
109 { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
110
111 { CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') },
112
113 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
114 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
115
116 /* added based on MPlayer */
117 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
118 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
119 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
120 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
121 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
122 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
123 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
124
125 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
126
127 /* added based on MPlayer */
128 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
129
130 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
131
132 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
133
134 /* added based on MPlayer */
135 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
136 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
137 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
138 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
139 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
140 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
141 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
142 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
143 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') },
144 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
145 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
146 { CODEC_ID_MPEG1VIDEO, 0x10000001 },
147 { CODEC_ID_MPEG2VIDEO, 0x10000002 },
148 { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
149 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
150 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
151 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
152 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
153 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
154 { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
155 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
156 { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
157 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
158 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
159 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
160 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
161 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
162 { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
163 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
164 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
165 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
166 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
167 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
168 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
169 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
170 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
171 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
172 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
173 { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
174 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
175 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
176 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
177 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
178 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
179 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
180 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
181 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
182 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
183 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
184 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
185 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
186 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
187 { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
188 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
189 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
190 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
191 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
192 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
193 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
194 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
195 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
196 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
197 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
198 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
199 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
200 { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
201 { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
202 { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
203 { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
204 { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
205 { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
206 { CODEC_ID_RAWVIDEO, 0 },
207 { CODEC_ID_NONE, 0 },
208};
209
210unsigned int codec_get_tag(const CodecTag *tags, int id)
211{
212 while (tags->id != CODEC_ID_NONE) {
213 if (tags->id == id)
214 return tags->tag;
215 tags++;
216 }
217 return 0;
218}
219
220static unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id)
221{
222 while (tags->id != CODEC_ID_NONE) {
223 if (!tags->invalid_asf && tags->id == id)
224 return tags->tag;
225 tags++;
226 }
227 return 0;
228}
229
230enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
231{
232 while (tags->id != CODEC_ID_NONE) {
233 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
234 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
235 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
236 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
237 return tags->id;
238 tags++;
239 }
240 return CODEC_ID_NONE;
241}
242
243unsigned int codec_get_bmp_tag(int id)
244{
245 return codec_get_tag(codec_bmp_tags, id);
246}
247
248unsigned int codec_get_wav_tag(int id)
249{
250 return codec_get_tag(codec_wav_tags, id);
251}
252
253enum CodecID codec_get_bmp_id(unsigned int tag)
254{
255 return codec_get_id(codec_bmp_tags, tag);
256}
257
258enum CodecID codec_get_wav_id(unsigned int tag)
259{
260 return codec_get_id(codec_wav_tags, tag);
261}
262
263#ifdef CONFIG_MUXERS
264/* BITMAPINFOHEADER header */
265void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
266{
267 put_le32(pb, 40 + enc->extradata_size); /* size */
268 put_le32(pb, enc->width);
269 put_le32(pb, enc->height);
270 put_le16(pb, 1); /* planes */
271
272 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
273 /* compression type */
274 put_le32(pb, for_asf ? (enc->codec_tag ? enc->codec_tag : codec_get_asf_tag(tags, enc->codec_id)) : enc->codec_tag); //
275 put_le32(pb, enc->width * enc->height * 3);
276 put_le32(pb, 0);
277 put_le32(pb, 0);
278 put_le32(pb, 0);
279 put_le32(pb, 0);
280
281 put_buffer(pb, enc->extradata, enc->extradata_size);
282
283 if (enc->extradata_size & 1)
284 put_byte(pb, 0);
285}
286
287void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
288{
289 int gcd;
290
291 *au_ssize= stream->block_align;
292 if(stream->frame_size && stream->sample_rate){
293 *au_scale=stream->frame_size;
294 *au_rate= stream->sample_rate;
295 }else if(stream->codec_type == CODEC_TYPE_VIDEO){
296 *au_scale= stream->time_base.num;
297 *au_rate = stream->time_base.den;
298 }else{
299 *au_scale= stream->block_align ? stream->block_align*8 : 8;
300 *au_rate = stream->bit_rate;
301 }
302 gcd= ff_gcd(*au_scale, *au_rate);
303 *au_scale /= gcd;
304 *au_rate /= gcd;
305}
306
307static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
308 const char* riff_tag, const char* list_tag)
309{
310 offset_t loff;
311 int i;
312
313 avi->riff_id++;
314 for (i=0; i<MAX_STREAMS; i++)
315 avi->indexes[i].entry = 0;
316
317 avi->riff_start = start_tag(pb, "RIFF");
318 put_tag(pb, riff_tag);
319 loff = start_tag(pb, "LIST");
320 put_tag(pb, list_tag);
321 return loff;
322}
323
324static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
325 enum CodecType type)
326{
327 tag[0] = '0';
328 tag[1] = '0' + index;
329 if (type == CODEC_TYPE_VIDEO) {
330 tag[2] = 'd';
331 tag[3] = 'c';
332 } else {
333 tag[2] = 'w';
334 tag[3] = 'b';
335 }
336 tag[4] = '\0';
337 return tag;
338}
339
340static int avi_write_header(AVFormatContext *s)
341{
342 AVIContext *avi = s->priv_data;
343 ByteIOContext *pb = &s->pb;
344 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
345 AVCodecContext *stream, *video_enc;
346 offset_t list1, list2, strh, strf;
347
348 /* header list */
349 avi->riff_id = 0;
350 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
351
352 /* avi header */
353 put_tag(pb, "avih");
354 put_le32(pb, 14 * 4);
355 bitrate = 0;
356
357 video_enc = NULL;
358 for(n=0;n<s->nb_streams;n++) {
359 stream = s->streams[n]->codec;
360 bitrate += stream->bit_rate;
361 if (stream->codec_type == CODEC_TYPE_VIDEO)
362 video_enc = stream;
363 }
364
365 nb_frames = 0;
366
367 if(video_enc){
368 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
369 } else {
370 put_le32(pb, 0);
371 }
372 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
373 put_le32(pb, 0); /* padding */
374 if (url_is_streamed(pb))
375 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
376 else
377 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
378 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
379 put_le32(pb, nb_frames); /* nb frames, filled later */
380 put_le32(pb, 0); /* initial frame */
381 put_le32(pb, s->nb_streams); /* nb streams */
382 put_le32(pb, 1024 * 1024); /* suggested buffer size */
383 if(video_enc){
384 put_le32(pb, video_enc->width);
385 put_le32(pb, video_enc->height);
386 } else {
387 put_le32(pb, 0);
388 put_le32(pb, 0);
389 }
390 put_le32(pb, 0); /* reserved */
391 put_le32(pb, 0); /* reserved */
392 put_le32(pb, 0); /* reserved */
393 put_le32(pb, 0); /* reserved */
394
395 /* stream list */
396 for(i=0;i<n;i++) {
397 list2 = start_tag(pb, "LIST");
398 put_tag(pb, "strl");
399
400 stream = s->streams[i]->codec;
401
402 /* FourCC should really be set by the codec itself */
403 if (! stream->codec_tag) {
404 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
405 }
406
407 /* stream generic header */
408 strh = start_tag(pb, "strh");
409 switch(stream->codec_type) {
410 case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); break;
411 case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break;
412// case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break;
413 case CODEC_TYPE_DATA : put_tag(pb, "dats"); break;
414 }
415 if(stream->codec_type == CODEC_TYPE_VIDEO)
416 put_le32(pb, stream->codec_tag);
417 else
418 put_le32(pb, 1);
419 put_le32(pb, 0); /* flags */
420 put_le16(pb, 0); /* priority */
421 put_le16(pb, 0); /* language */
422 put_le32(pb, 0); /* initial frame */
423
424 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
425
426 put_le32(pb, au_scale); /* scale */
427 put_le32(pb, au_byterate); /* rate */
428 av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
429
430 put_le32(pb, 0); /* start */
431 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
432 if (url_is_streamed(pb))
433 put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
434 else
435 put_le32(pb, 0); /* length, XXX: filled later */
436
437 /* suggested buffer size */ //FIXME set at the end to largest chunk
438 if(stream->codec_type == CODEC_TYPE_VIDEO)
439 put_le32(pb, 1024 * 1024);
440 else if(stream->codec_type == CODEC_TYPE_AUDIO)
441 put_le32(pb, 12 * 1024);
442 else
443 put_le32(pb, 0);
444 put_le32(pb, -1); /* quality */
445 put_le32(pb, au_ssize); /* sample size */
446 put_le32(pb, 0);
447 put_le16(pb, stream->width);
448 put_le16(pb, stream->height);
449 end_tag(pb, strh);
450
451 if(stream->codec_type != CODEC_TYPE_DATA){
452 strf = start_tag(pb, "strf");
453 switch(stream->codec_type) {
454 case CODEC_TYPE_VIDEO:
455 put_bmp_header(pb, stream, codec_bmp_tags, 0);
456 break;
457 case CODEC_TYPE_AUDIO:
458 if (put_wav_header(pb, stream) < 0) {
459 av_free(avi);
460 return -1;
461 }
462 break;
463 default:
464 return -1;
465 }
466 end_tag(pb, strf);
467 }
468
469 if (!url_is_streamed(pb)) {
470 unsigned char tag[5];
471 int j;
472
473 /* Starting to lay out AVI OpenDML master index.
474 * We want to make it JUNK entry for now, since we'd
475 * like to get away without making AVI an OpenDML one
476 * for compatibility reasons.
477 */
478 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
479 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
480 put_le16(pb, 4); /* wLongsPerEntry */
481 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
482 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
483 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
484 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
485 /* dwChunkId */
486 put_le64(pb, 0); /* dwReserved[3]
487 put_le32(pb, 0); Must be 0. */
488 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
489 put_le64(pb, 0);
490 end_tag(pb, avi->indexes[i].indx_start);
491 }
492
493 end_tag(pb, list2);
494 }
495
496 if (!url_is_streamed(pb)) {
497 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
498 avi->odml_list = start_tag(pb, "JUNK");
499 put_tag(pb, "odml");
500 put_tag(pb, "dmlh");
501 put_le32(pb, 248);
502 for (i = 0; i < 248; i+= 4)
503 put_le32(pb, 0);
504 end_tag(pb, avi->odml_list);
505 }
506
507 end_tag(pb, list1);
508
509 avi->movi_list = start_tag(pb, "LIST");
510 put_tag(pb, "movi");
511
512 put_flush_packet(pb);
513
514 return 0;
515}
516
517static int avi_write_ix(AVFormatContext *s)
518{
519 ByteIOContext *pb = &s->pb;
520 AVIContext *avi = s->priv_data;
521 unsigned char tag[5];
522 unsigned char ix_tag[] = "ix00";
523 int i, j;
524
525 assert(!url_is_streamed(pb));
526
527 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
528 return -1;
529
530 for (i=0;i<s->nb_streams;i++) {
531 offset_t ix, pos;
532
533 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
534 ix_tag[3] = '0' + i;
535
536 /* Writing AVI OpenDML leaf index chunk */
537 ix = url_ftell(pb);
538 put_tag(pb, &ix_tag[0]); /* ix?? */
539 put_le32(pb, avi->indexes[i].entry * 8 + 24);
540 /* chunk size */
541 put_le16(pb, 2); /* wLongsPerEntry */
542 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
543 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
544 put_le32(pb, avi->indexes[i].entry);
545 /* nEntriesInUse */
546 put_tag(pb, &tag[0]); /* dwChunkId */
547 put_le64(pb, avi->movi_list);/* qwBaseOffset */
548 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
549
550 for (j=0; j<avi->indexes[i].entry; j++) {
551 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
552 put_le32(pb, ie->pos + 8);
553 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
554 (ie->flags & 0x10 ? 0 : 0x80000000));
555 }
556 put_flush_packet(pb);
557 pos = url_ftell(pb);
558
559 /* Updating one entry in the AVI OpenDML master index */
560 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
561 put_tag(pb, "indx"); /* enabling this entry */
562 url_fskip(pb, 8);
563 put_le32(pb, avi->riff_id); /* nEntriesInUse */
564 url_fskip(pb, 16*avi->riff_id);
565 put_le64(pb, ix); /* qwOffset */
566 put_le32(pb, pos - ix); /* dwSize */
567 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
568
569 url_fseek(pb, pos, SEEK_SET);
570 }
571 return 0;
572}
573
574static int avi_write_idx1(AVFormatContext *s)
575{
576 ByteIOContext *pb = &s->pb;
577 AVIContext *avi = s->priv_data;
578 offset_t file_size, idx_chunk;
579 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
580 AVCodecContext *stream;
581 unsigned char tag[5];
582
583 if (!url_is_streamed(pb)) {
584 AVIIentry* ie = 0, *tie;
585 int entry[MAX_STREAMS];
586 int empty, stream_id = -1;
587
588 idx_chunk = start_tag(pb, "idx1");
589 memset(&entry[0], 0, sizeof(entry));
590 do {
591 empty = 1;
592 for (i=0; i<s->nb_streams; i++) {
593 if (avi->indexes[i].entry <= entry[i])
594 continue;
595
596 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
597 if (empty || tie->pos < ie->pos) {
598 ie = tie;
599 stream_id = i;
600 }
601 empty = 0;
602 }
603 if (!empty) {
604 avi_stream2fourcc(&tag[0], stream_id,
605 s->streams[stream_id]->codec->codec_type);
606 put_tag(pb, &tag[0]);
607 put_le32(pb, ie->flags);
608 put_le32(pb, ie->pos);
609 put_le32(pb, ie->len);
610 entry[stream_id]++;
611 }
612 } while (!empty);
613 end_tag(pb, idx_chunk);
614
615 /* Fill in frame/sample counters */
616 file_size = url_ftell(pb);
617 nb_frames = 0;
618 for(n=0;n<s->nb_streams;n++) {
619 assert(avi->frames_hdr_strm[n]);
620 stream = s->streams[n]->codec;
621 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
622 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
623 if (au_ssize == 0) {
624 put_le32(pb, avi->packet_count[n]);
625 } else {
626 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
627 }
628 if(stream->codec_type == CODEC_TYPE_VIDEO)
629 nb_frames = FFMAX(nb_frames, avi->packet_count[n]);
630 }
631 assert(avi->frames_hdr_all);
632 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
633 put_le32(pb, nb_frames);
634 url_fseek(pb, file_size, SEEK_SET);
635 }
636 return 0;
637}
638
639static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
640{
641 AVIContext *avi = s->priv_data;
642 ByteIOContext *pb = &s->pb;
643 unsigned char tag[5];
644 unsigned int flags=0;
645 const int stream_index= pkt->stream_index;
646 AVCodecContext *enc= s->streams[stream_index]->codec;
647 int size= pkt->size;
648
649// av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
650 while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
651 AVPacket empty_packet;
652
653 av_init_packet(&empty_packet);
654 empty_packet.size= 0;
655 empty_packet.data= NULL;
656 empty_packet.stream_index= stream_index;
657 avi_write_packet(s, &empty_packet);
658// av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
659 }
660 avi->packet_count[stream_index]++;
661
662 // Make sure to put an OpenDML chunk when the file size exceeds the limits
663 if (!url_is_streamed(pb) &&
664 (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
665
666 avi_write_ix(s);
667 end_tag(pb, avi->movi_list);
668
669 if (avi->riff_id == 1)
670 avi_write_idx1(s);
671
672 end_tag(pb, avi->riff_start);
673 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
674 }
675
676 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
677 if(pkt->flags&PKT_FLAG_KEY)
678 flags = 0x10;
679 if (enc->codec_type == CODEC_TYPE_AUDIO) {
680 avi->audio_strm_length[stream_index] += size;
681 }
682
683 if (!url_is_streamed(&s->pb)) {
684 AVIIndex* idx = &avi->indexes[stream_index];
685 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
686 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
687 if (idx->ents_allocated <= idx->entry) {
688 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
689 if (!idx->cluster)
690 return -1;
691 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
692 if (!idx->cluster[cl])
693 return -1;
694 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
695 }
696
697 idx->cluster[cl][id].flags = flags;
698 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
699 idx->cluster[cl][id].len = size;
700 idx->entry++;
701 }
702
703 put_buffer(pb, tag, 4);
704 put_le32(pb, size);
705 put_buffer(pb, pkt->data, size);
706 if (size & 1)
707 put_byte(pb, 0);
708
709 put_flush_packet(pb);
710 return 0;
711}
712
713static int avi_write_trailer(AVFormatContext *s)
714{
715 AVIContext *avi = s->priv_data;
716 ByteIOContext *pb = &s->pb;
717 int res = 0;
718 int i, j, n, nb_frames;
719 offset_t file_size;
720
721 if (!url_is_streamed(pb))
722 {
723 if (avi->riff_id == 1) {
724 end_tag(pb, avi->movi_list);
725 res = avi_write_idx1(s);
726 end_tag(pb, avi->riff_start);
727 } else {
728 avi_write_ix(s);
729 end_tag(pb, avi->movi_list);
730 end_tag(pb, avi->riff_start);
731
732 file_size = url_ftell(pb);
733 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
734 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
735 url_fskip(pb, 16);
736
737 for (n=nb_frames=0;n<s->nb_streams;n++) {
738 AVCodecContext *stream = s->streams[n]->codec;
739 if (stream->codec_type == CODEC_TYPE_VIDEO) {
740 if (nb_frames < avi->packet_count[n])
741 nb_frames = avi->packet_count[n];
742 } else {
743 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
744 nb_frames += avi->packet_count[n];
745 }
746 }
747 }
748 put_le32(pb, nb_frames);
749 url_fseek(pb, file_size, SEEK_SET);
750 }
751 }
752 put_flush_packet(pb);
753
754 for (i=0; i<MAX_STREAMS; i++) {
755 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
756 av_free(avi->indexes[i].cluster[j]);
757 av_free(avi->indexes[i].cluster);
758 avi->indexes[i].cluster = NULL;
759 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
760 }
761
762 return res;
763}
764
765static AVOutputFormat avi_muxer = {
766 "avi",
767 "avi format",
768 "video/x-msvideo",
769 "avi",
770 sizeof(AVIContext),
771 CODEC_ID_MP2,
772 CODEC_ID_MPEG4,
773 avi_write_header,
774 avi_write_packet,
775 avi_write_trailer,
776};
777
778int avienc_init(void)
779{
780 av_register_output_format(&avi_muxer);
781 return 0;
782}
783#endif //CONFIG_MUXERS
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