Fraps FPS1 video decoder (v1 & v2), courtesy of Roine Gustafsson <roine
[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_FRAPS, MKTAG('F', 'P', 'S', '1') },
186 { CODEC_ID_RAWVIDEO, 0 },
187 { 0, 0 },
188 };
189
190 unsigned int codec_get_tag(const CodecTag *tags, int id)
191 {
192 while (tags->id != 0) {
193 if (tags->id == id)
194 return tags->tag;
195 tags++;
196 }
197 return 0;
198 }
199
200 static unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id)
201 {
202 while (tags->id != 0) {
203 if (!tags->invalid_asf && tags->id == id)
204 return tags->tag;
205 tags++;
206 }
207 return 0;
208 }
209
210 enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
211 {
212 while (tags->id != 0) {
213 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
214 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
215 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
216 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
217 return tags->id;
218 tags++;
219 }
220 return CODEC_ID_NONE;
221 }
222
223 unsigned int codec_get_bmp_tag(int id)
224 {
225 return codec_get_tag(codec_bmp_tags, id);
226 }
227
228 unsigned int codec_get_wav_tag(int id)
229 {
230 return codec_get_tag(codec_wav_tags, id);
231 }
232
233 enum CodecID codec_get_bmp_id(unsigned int tag)
234 {
235 return codec_get_id(codec_bmp_tags, tag);
236 }
237
238 enum CodecID codec_get_wav_id(unsigned int tag)
239 {
240 return codec_get_id(codec_wav_tags, tag);
241 }
242
243 #ifdef CONFIG_ENCODERS
244 /* BITMAPINFOHEADER header */
245 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
246 {
247 put_le32(pb, 40 + enc->extradata_size); /* size */
248 put_le32(pb, enc->width);
249 put_le32(pb, enc->height);
250 put_le16(pb, 1); /* planes */
251
252 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
253 /* compression type */
254 put_le32(pb, for_asf ? (enc->codec_tag ? enc->codec_tag : codec_get_asf_tag(tags, enc->codec_id)) : enc->codec_tag); //
255 put_le32(pb, enc->width * enc->height * 3);
256 put_le32(pb, 0);
257 put_le32(pb, 0);
258 put_le32(pb, 0);
259 put_le32(pb, 0);
260
261 put_buffer(pb, enc->extradata, enc->extradata_size);
262
263 if (enc->extradata_size & 1)
264 put_byte(pb, 0);
265 }
266
267 static void parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
268 {
269 int gcd;
270
271 *au_ssize= stream->block_align;
272 if(stream->frame_size && stream->sample_rate){
273 *au_scale=stream->frame_size;
274 *au_rate= stream->sample_rate;
275 }else if(stream->codec_type == CODEC_TYPE_VIDEO){
276 *au_scale= stream->time_base.num;
277 *au_rate = stream->time_base.den;
278 }else{
279 *au_scale= stream->block_align ? stream->block_align*8 : 8;
280 *au_rate = stream->bit_rate;
281 }
282 gcd= ff_gcd(*au_scale, *au_rate);
283 *au_scale /= gcd;
284 *au_rate /= gcd;
285 }
286
287 static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
288 const char* riff_tag, const char* list_tag)
289 {
290 offset_t loff;
291 int i;
292
293 avi->riff_id++;
294 for (i=0; i<MAX_STREAMS; i++)
295 avi->indexes[i].entry = 0;
296
297 avi->riff_start = start_tag(pb, "RIFF");
298 put_tag(pb, riff_tag);
299 loff = start_tag(pb, "LIST");
300 put_tag(pb, list_tag);
301 return loff;
302 }
303
304 static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
305 enum CodecType type)
306 {
307 tag[0] = '0';
308 tag[1] = '0' + index;
309 if (type == CODEC_TYPE_VIDEO) {
310 tag[2] = 'd';
311 tag[3] = 'c';
312 } else {
313 tag[2] = 'w';
314 tag[3] = 'b';
315 }
316 tag[4] = '\0';
317 return tag;
318 }
319
320 static int avi_write_header(AVFormatContext *s)
321 {
322 AVIContext *avi = s->priv_data;
323 ByteIOContext *pb = &s->pb;
324 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
325 AVCodecContext *stream, *video_enc;
326 offset_t list1, list2, strh, strf;
327
328 /* header list */
329 avi->riff_id = 0;
330 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
331
332 /* avi header */
333 put_tag(pb, "avih");
334 put_le32(pb, 14 * 4);
335 bitrate = 0;
336
337 video_enc = NULL;
338 for(n=0;n<s->nb_streams;n++) {
339 stream = &s->streams[n]->codec;
340 bitrate += stream->bit_rate;
341 if (stream->codec_type == CODEC_TYPE_VIDEO)
342 video_enc = stream;
343 }
344
345 nb_frames = 0;
346
347 if(video_enc){
348 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
349 } else {
350 put_le32(pb, 0);
351 }
352 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
353 put_le32(pb, 0); /* padding */
354 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
355 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
356 put_le32(pb, nb_frames); /* nb frames, filled later */
357 put_le32(pb, 0); /* initial frame */
358 put_le32(pb, s->nb_streams); /* nb streams */
359 put_le32(pb, 1024 * 1024); /* suggested buffer size */
360 if(video_enc){
361 put_le32(pb, video_enc->width);
362 put_le32(pb, video_enc->height);
363 } else {
364 put_le32(pb, 0);
365 put_le32(pb, 0);
366 }
367 put_le32(pb, 0); /* reserved */
368 put_le32(pb, 0); /* reserved */
369 put_le32(pb, 0); /* reserved */
370 put_le32(pb, 0); /* reserved */
371
372 /* stream list */
373 for(i=0;i<n;i++) {
374 list2 = start_tag(pb, "LIST");
375 put_tag(pb, "strl");
376
377 stream = &s->streams[i]->codec;
378
379 /* FourCC should really be set by the codec itself */
380 if (! stream->codec_tag) {
381 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
382 }
383
384 /* stream generic header */
385 strh = start_tag(pb, "strh");
386 switch(stream->codec_type) {
387 case CODEC_TYPE_VIDEO:
388 put_tag(pb, "vids");
389 put_le32(pb, stream->codec_tag);
390 put_le32(pb, 0); /* flags */
391 put_le16(pb, 0); /* priority */
392 put_le16(pb, 0); /* language */
393 put_le32(pb, 0); /* initial frame */
394
395 put_le32(pb, stream->time_base.num); /* scale */
396 put_le32(pb, stream->time_base.den); /* rate */
397 av_set_pts_info(s->streams[i], 64, stream->time_base.num, stream->time_base.den);
398
399 put_le32(pb, 0); /* start */
400 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
401 put_le32(pb, nb_frames); /* length, XXX: fill later */
402 put_le32(pb, 1024 * 1024); /* suggested buffer size */
403 put_le32(pb, -1); /* quality */
404 put_le32(pb, 0); /* sample size */
405 put_le16(pb, 0);
406 put_le16(pb, 0);
407 put_le16(pb, stream->width);
408 put_le16(pb, stream->height);
409 break;
410 case CODEC_TYPE_AUDIO:
411 put_tag(pb, "auds");
412 put_le32(pb, 1); /* tag */
413 put_le32(pb, 0); /* flags */
414 put_le16(pb, 0); /* priority */
415 put_le16(pb, 0); /* language */
416 put_le32(pb, 0); /* initial frame */
417 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
418 put_le32(pb, au_scale); /* scale */
419 put_le32(pb, au_byterate); /* rate */
420 av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
421 put_le32(pb, 0); /* start */
422 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
423 put_le32(pb, 0); /* length, XXX: filled later */
424 put_le32(pb, 12 * 1024); /* suggested buffer size */
425 put_le32(pb, -1); /* quality */
426 put_le32(pb, au_ssize); /* sample size */
427 put_le32(pb, 0);
428 put_le32(pb, 0);
429 break;
430 default:
431 return -1;
432 }
433 end_tag(pb, strh);
434
435 strf = start_tag(pb, "strf");
436 switch(stream->codec_type) {
437 case CODEC_TYPE_VIDEO:
438 put_bmp_header(pb, stream, codec_bmp_tags, 0);
439 break;
440 case CODEC_TYPE_AUDIO:
441 if (put_wav_header(pb, stream) < 0) {
442 av_free(avi);
443 return -1;
444 }
445 break;
446 default:
447 return -1;
448 }
449 end_tag(pb, strf);
450
451 if (!url_is_streamed(pb)) {
452 unsigned char tag[5];
453 int j;
454
455 /* Starting to lay out AVI OpenDML master index.
456 * We want to make it JUNK entry for now, since we'd
457 * like to get away without making AVI an OpenDML one
458 * for compatibility reasons.
459 */
460 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
461 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
462 put_le16(pb, 4); /* wLongsPerEntry */
463 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
464 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
465 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
466 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
467 /* dwChunkId */
468 put_le64(pb, 0); /* dwReserved[3]
469 put_le32(pb, 0); Must be 0. */
470 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
471 put_le64(pb, 0);
472 end_tag(pb, avi->indexes[i].indx_start);
473 }
474
475 end_tag(pb, list2);
476 }
477
478 if (!url_is_streamed(pb)) {
479 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
480 avi->odml_list = start_tag(pb, "JUNK");
481 put_tag(pb, "odml");
482 put_tag(pb, "dmlh");
483 put_le32(pb, 248);
484 for (i = 0; i < 248; i+= 4)
485 put_le32(pb, 0);
486 end_tag(pb, avi->odml_list);
487 }
488
489 end_tag(pb, list1);
490
491 avi->movi_list = start_tag(pb, "LIST");
492 put_tag(pb, "movi");
493
494 put_flush_packet(pb);
495
496 return 0;
497 }
498
499 static int avi_write_ix(AVFormatContext *s)
500 {
501 ByteIOContext *pb = &s->pb;
502 AVIContext *avi = s->priv_data;
503 unsigned char tag[5];
504 unsigned char ix_tag[] = "ix00";
505 int i, j;
506
507 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
508 return -1;
509
510 for (i=0;i<s->nb_streams;i++) {
511 offset_t ix, pos;
512
513 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
514 ix_tag[3] = '0' + i;
515
516 /* Writing AVI OpenDML leaf index chunk */
517 ix = url_ftell(pb);
518 put_tag(pb, &ix_tag[0]); /* ix?? */
519 put_le32(pb, avi->indexes[i].entry * 8 + 24);
520 /* chunk size */
521 put_le16(pb, 2); /* wLongsPerEntry */
522 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
523 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
524 put_le32(pb, avi->indexes[i].entry);
525 /* nEntriesInUse */
526 put_tag(pb, &tag[0]); /* dwChunkId */
527 put_le64(pb, avi->movi_list);/* qwBaseOffset */
528 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
529
530 for (j=0; j<avi->indexes[i].entry; j++) {
531 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
532 put_le32(pb, ie->pos + 8);
533 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
534 (ie->flags & 0x10 ? 0 : 0x80000000));
535 }
536 put_flush_packet(pb);
537 pos = url_ftell(pb);
538
539 /* Updating one entry in the AVI OpenDML master index */
540 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
541 put_tag(pb, "indx"); /* enabling this entry */
542 url_fskip(pb, 8);
543 put_le32(pb, avi->riff_id); /* nEntriesInUse */
544 url_fskip(pb, 16*avi->riff_id);
545 put_le64(pb, ix); /* qwOffset */
546 put_le32(pb, pos - ix); /* dwSize */
547 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
548
549 url_fseek(pb, pos, SEEK_SET);
550 }
551 return 0;
552 }
553
554 static int avi_write_idx1(AVFormatContext *s)
555 {
556 ByteIOContext *pb = &s->pb;
557 AVIContext *avi = s->priv_data;
558 offset_t file_size, idx_chunk;
559 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
560 AVCodecContext *stream;
561 unsigned char tag[5];
562
563 if (!url_is_streamed(pb)) {
564 AVIIentry* ie = 0, *tie;
565 int entry[MAX_STREAMS];
566 int empty, stream_id = -1;
567
568 idx_chunk = start_tag(pb, "idx1");
569 memset(&entry[0], 0, sizeof(entry));
570 do {
571 empty = 1;
572 for (i=0; i<s->nb_streams; i++) {
573 if (avi->indexes[i].entry <= entry[i])
574 continue;
575
576 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
577 if (empty || tie->pos < ie->pos) {
578 ie = tie;
579 stream_id = i;
580 }
581 empty = 0;
582 }
583 if (!empty) {
584 avi_stream2fourcc(&tag[0], stream_id,
585 s->streams[stream_id]->codec.codec_type);
586 put_tag(pb, &tag[0]);
587 put_le32(pb, ie->flags);
588 put_le32(pb, ie->pos);
589 put_le32(pb, ie->len);
590 entry[stream_id]++;
591 }
592 } while (!empty);
593 end_tag(pb, idx_chunk);
594
595 /* Fill in frame/sample counters */
596 file_size = url_ftell(pb);
597 nb_frames = 0;
598 for(n=0;n<s->nb_streams;n++) {
599 if (avi->frames_hdr_strm[n] != 0) {
600 stream = &s->streams[n]->codec;
601 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
602 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
603 if (au_ssize == 0) {
604 put_le32(pb, stream->frame_number);
605 nb_frames += stream->frame_number;
606 } else {
607 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
608 }
609 }
610 }
611 if (avi->frames_hdr_all != 0) {
612 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
613 put_le32(pb, nb_frames);
614 }
615 url_fseek(pb, file_size, SEEK_SET);
616 }
617 return 0;
618 }
619
620 static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
621 {
622 AVIContext *avi = s->priv_data;
623 ByteIOContext *pb = &s->pb;
624 unsigned char tag[5];
625 unsigned int flags=0;
626 const int stream_index= pkt->stream_index;
627 AVCodecContext *enc= &s->streams[stream_index]->codec;
628 int size= pkt->size;
629
630 // av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
631 while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
632 AVPacket empty_packet;
633
634 av_init_packet(&empty_packet);
635 empty_packet.size= 0;
636 empty_packet.data= NULL;
637 empty_packet.stream_index= stream_index;
638 avi_write_packet(s, &empty_packet);
639 // av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
640 }
641 avi->packet_count[stream_index]++;
642
643 if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) {
644 avi_write_ix(s);
645 end_tag(pb, avi->movi_list);
646
647 if (avi->riff_id == 1)
648 avi_write_idx1(s);
649
650 end_tag(pb, avi->riff_start);
651 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
652 }
653
654 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
655 if(pkt->flags&PKT_FLAG_KEY)
656 flags = 0x10;
657 if (enc->codec_type == CODEC_TYPE_AUDIO) {
658 avi->audio_strm_length[stream_index] += size;
659 }
660
661 if (!url_is_streamed(&s->pb)) {
662 AVIIndex* idx = &avi->indexes[stream_index];
663 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
664 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
665 if (idx->ents_allocated <= idx->entry) {
666 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
667 if (!idx->cluster)
668 return -1;
669 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
670 if (!idx->cluster[cl])
671 return -1;
672 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
673 }
674
675 idx->cluster[cl][id].flags = flags;
676 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
677 idx->cluster[cl][id].len = size;
678 idx->entry++;
679 }
680
681 put_buffer(pb, tag, 4);
682 put_le32(pb, size);
683 put_buffer(pb, pkt->data, size);
684 if (size & 1)
685 put_byte(pb, 0);
686
687 put_flush_packet(pb);
688 return 0;
689 }
690
691 static int avi_write_trailer(AVFormatContext *s)
692 {
693 AVIContext *avi = s->priv_data;
694 ByteIOContext *pb = &s->pb;
695 int res = 0;
696 int i, j, n, nb_frames;
697 offset_t file_size;
698
699 if (avi->riff_id == 1) {
700 end_tag(pb, avi->movi_list);
701 res = avi_write_idx1(s);
702 end_tag(pb, avi->riff_start);
703 } else {
704 avi_write_ix(s);
705 end_tag(pb, avi->movi_list);
706 end_tag(pb, avi->riff_start);
707
708 file_size = url_ftell(pb);
709 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
710 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
711 url_fskip(pb, 16);
712
713 for (n=nb_frames=0;n<s->nb_streams;n++) {
714 AVCodecContext *stream = &s->streams[n]->codec;
715 if (stream->codec_type == CODEC_TYPE_VIDEO) {
716 if (nb_frames < stream->frame_number)
717 nb_frames = stream->frame_number;
718 } else {
719 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
720 nb_frames += stream->frame_number;
721 }
722 }
723 }
724 put_le32(pb, nb_frames);
725 url_fseek(pb, file_size, SEEK_SET);
726 }
727 put_flush_packet(pb);
728
729 for (i=0; i<MAX_STREAMS; i++) {
730 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
731 av_free(avi->indexes[i].cluster[j]);
732 av_free(avi->indexes[i].cluster);
733 avi->indexes[i].cluster = NULL;
734 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
735 }
736
737 return res;
738 }
739
740 static AVOutputFormat avi_oformat = {
741 "avi",
742 "avi format",
743 "video/x-msvideo",
744 "avi",
745 sizeof(AVIContext),
746 CODEC_ID_MP2,
747 CODEC_ID_MPEG4,
748 avi_write_header,
749 avi_write_packet,
750 avi_write_trailer,
751 };
752
753 int avienc_init(void)
754 {
755 av_register_output_format(&avi_oformat);
756 return 0;
757 }
758 #endif //CONFIG_ENCODERS