edd2ea19df15a38f82a6dace9392a442032033f9
[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., 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
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_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. */
78 const 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_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
144 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
145 { CODEC_ID_MPEG1VIDEO, 0x10000001 },
146 { CODEC_ID_MPEG2VIDEO, 0x10000002 },
147 { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
148 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
149 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
150 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
151 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
152 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
153 { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
154 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
155 { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
156 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
157 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
158 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
159 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
160 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
161 { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
162 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
163 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
164 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
165 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
166 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
167 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
168 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
169 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
170 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
171 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
172 { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
173 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
174 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
175 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
176 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
177 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
178 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
179 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
180 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
181 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
182 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
183 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
184 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
185 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
186 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
187 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
188 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
189 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
190 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
191 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
192 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
193 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
194 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
195 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
196 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
197 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
198 { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
199 { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
200 { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
201 { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
202 { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
203 { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
204 { CODEC_ID_RAWVIDEO, 0 },
205 { CODEC_ID_NONE, 0 },
206 };
207
208 unsigned int codec_get_tag(const CodecTag *tags, int id)
209 {
210 while (tags->id != CODEC_ID_NONE) {
211 if (tags->id == id)
212 return tags->tag;
213 tags++;
214 }
215 return 0;
216 }
217
218 static unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id)
219 {
220 while (tags->id != CODEC_ID_NONE) {
221 if (!tags->invalid_asf && tags->id == id)
222 return tags->tag;
223 tags++;
224 }
225 return 0;
226 }
227
228 enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
229 {
230 while (tags->id != CODEC_ID_NONE) {
231 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
232 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
233 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
234 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
235 return tags->id;
236 tags++;
237 }
238 return CODEC_ID_NONE;
239 }
240
241 unsigned int codec_get_bmp_tag(int id)
242 {
243 return codec_get_tag(codec_bmp_tags, id);
244 }
245
246 unsigned int codec_get_wav_tag(int id)
247 {
248 return codec_get_tag(codec_wav_tags, id);
249 }
250
251 enum CodecID codec_get_bmp_id(unsigned int tag)
252 {
253 return codec_get_id(codec_bmp_tags, tag);
254 }
255
256 enum CodecID codec_get_wav_id(unsigned int tag)
257 {
258 return codec_get_id(codec_wav_tags, tag);
259 }
260
261 #ifdef CONFIG_MUXERS
262 /* BITMAPINFOHEADER header */
263 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
264 {
265 put_le32(pb, 40 + enc->extradata_size); /* size */
266 put_le32(pb, enc->width);
267 put_le32(pb, enc->height);
268 put_le16(pb, 1); /* planes */
269
270 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
271 /* compression type */
272 put_le32(pb, for_asf ? (enc->codec_tag ? enc->codec_tag : codec_get_asf_tag(tags, enc->codec_id)) : enc->codec_tag); //
273 put_le32(pb, enc->width * enc->height * 3);
274 put_le32(pb, 0);
275 put_le32(pb, 0);
276 put_le32(pb, 0);
277 put_le32(pb, 0);
278
279 put_buffer(pb, enc->extradata, enc->extradata_size);
280
281 if (enc->extradata_size & 1)
282 put_byte(pb, 0);
283 }
284
285 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
286 {
287 int gcd;
288
289 *au_ssize= stream->block_align;
290 if(stream->frame_size && stream->sample_rate){
291 *au_scale=stream->frame_size;
292 *au_rate= stream->sample_rate;
293 }else if(stream->codec_type == CODEC_TYPE_VIDEO){
294 *au_scale= stream->time_base.num;
295 *au_rate = stream->time_base.den;
296 }else{
297 *au_scale= stream->block_align ? stream->block_align*8 : 8;
298 *au_rate = stream->bit_rate;
299 }
300 gcd= ff_gcd(*au_scale, *au_rate);
301 *au_scale /= gcd;
302 *au_rate /= gcd;
303 }
304
305 static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
306 const char* riff_tag, const char* list_tag)
307 {
308 offset_t loff;
309 int i;
310
311 avi->riff_id++;
312 for (i=0; i<MAX_STREAMS; i++)
313 avi->indexes[i].entry = 0;
314
315 avi->riff_start = start_tag(pb, "RIFF");
316 put_tag(pb, riff_tag);
317 loff = start_tag(pb, "LIST");
318 put_tag(pb, list_tag);
319 return loff;
320 }
321
322 static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
323 enum CodecType type)
324 {
325 tag[0] = '0';
326 tag[1] = '0' + index;
327 if (type == CODEC_TYPE_VIDEO) {
328 tag[2] = 'd';
329 tag[3] = 'c';
330 } else {
331 tag[2] = 'w';
332 tag[3] = 'b';
333 }
334 tag[4] = '\0';
335 return tag;
336 }
337
338 static int avi_write_header(AVFormatContext *s)
339 {
340 AVIContext *avi = s->priv_data;
341 ByteIOContext *pb = &s->pb;
342 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
343 AVCodecContext *stream, *video_enc;
344 offset_t list1, list2, strh, strf;
345
346 /* header list */
347 avi->riff_id = 0;
348 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
349
350 /* avi header */
351 put_tag(pb, "avih");
352 put_le32(pb, 14 * 4);
353 bitrate = 0;
354
355 video_enc = NULL;
356 for(n=0;n<s->nb_streams;n++) {
357 stream = s->streams[n]->codec;
358 bitrate += stream->bit_rate;
359 if (stream->codec_type == CODEC_TYPE_VIDEO)
360 video_enc = stream;
361 }
362
363 nb_frames = 0;
364
365 if(video_enc){
366 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
367 } else {
368 put_le32(pb, 0);
369 }
370 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
371 put_le32(pb, 0); /* padding */
372 if (url_is_streamed(pb))
373 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
374 else
375 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
376 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
377 put_le32(pb, nb_frames); /* nb frames, filled later */
378 put_le32(pb, 0); /* initial frame */
379 put_le32(pb, s->nb_streams); /* nb streams */
380 put_le32(pb, 1024 * 1024); /* suggested buffer size */
381 if(video_enc){
382 put_le32(pb, video_enc->width);
383 put_le32(pb, video_enc->height);
384 } else {
385 put_le32(pb, 0);
386 put_le32(pb, 0);
387 }
388 put_le32(pb, 0); /* reserved */
389 put_le32(pb, 0); /* reserved */
390 put_le32(pb, 0); /* reserved */
391 put_le32(pb, 0); /* reserved */
392
393 /* stream list */
394 for(i=0;i<n;i++) {
395 list2 = start_tag(pb, "LIST");
396 put_tag(pb, "strl");
397
398 stream = s->streams[i]->codec;
399
400 /* FourCC should really be set by the codec itself */
401 if (! stream->codec_tag) {
402 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
403 }
404
405 /* stream generic header */
406 strh = start_tag(pb, "strh");
407 switch(stream->codec_type) {
408 case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); break;
409 case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break;
410 // case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break;
411 case CODEC_TYPE_DATA : put_tag(pb, "dats"); break;
412 }
413 if(stream->codec_type == CODEC_TYPE_VIDEO)
414 put_le32(pb, stream->codec_tag);
415 else
416 put_le32(pb, 1);
417 put_le32(pb, 0); /* flags */
418 put_le16(pb, 0); /* priority */
419 put_le16(pb, 0); /* language */
420 put_le32(pb, 0); /* initial frame */
421
422 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
423
424 put_le32(pb, au_scale); /* scale */
425 put_le32(pb, au_byterate); /* rate */
426 av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
427
428 put_le32(pb, 0); /* start */
429 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
430 if (url_is_streamed(pb))
431 put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
432 else
433 put_le32(pb, 0); /* length, XXX: filled later */
434
435 /* suggested buffer size */ //FIXME set at the end to largest chunk
436 if(stream->codec_type == CODEC_TYPE_VIDEO)
437 put_le32(pb, 1024 * 1024);
438 else if(stream->codec_type == CODEC_TYPE_AUDIO)
439 put_le32(pb, 12 * 1024);
440 else
441 put_le32(pb, 0);
442 put_le32(pb, -1); /* quality */
443 put_le32(pb, au_ssize); /* sample size */
444 put_le32(pb, 0);
445 put_le16(pb, stream->width);
446 put_le16(pb, stream->height);
447 end_tag(pb, strh);
448
449 if(stream->codec_type != CODEC_TYPE_DATA){
450 strf = start_tag(pb, "strf");
451 switch(stream->codec_type) {
452 case CODEC_TYPE_VIDEO:
453 put_bmp_header(pb, stream, codec_bmp_tags, 0);
454 break;
455 case CODEC_TYPE_AUDIO:
456 if (put_wav_header(pb, stream) < 0) {
457 av_free(avi);
458 return -1;
459 }
460 break;
461 default:
462 return -1;
463 }
464 end_tag(pb, strf);
465 }
466
467 if (!url_is_streamed(pb)) {
468 unsigned char tag[5];
469 int j;
470
471 /* Starting to lay out AVI OpenDML master index.
472 * We want to make it JUNK entry for now, since we'd
473 * like to get away without making AVI an OpenDML one
474 * for compatibility reasons.
475 */
476 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
477 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
478 put_le16(pb, 4); /* wLongsPerEntry */
479 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
480 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
481 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
482 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
483 /* dwChunkId */
484 put_le64(pb, 0); /* dwReserved[3]
485 put_le32(pb, 0); Must be 0. */
486 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
487 put_le64(pb, 0);
488 end_tag(pb, avi->indexes[i].indx_start);
489 }
490
491 end_tag(pb, list2);
492 }
493
494 if (!url_is_streamed(pb)) {
495 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
496 avi->odml_list = start_tag(pb, "JUNK");
497 put_tag(pb, "odml");
498 put_tag(pb, "dmlh");
499 put_le32(pb, 248);
500 for (i = 0; i < 248; i+= 4)
501 put_le32(pb, 0);
502 end_tag(pb, avi->odml_list);
503 }
504
505 end_tag(pb, list1);
506
507 avi->movi_list = start_tag(pb, "LIST");
508 put_tag(pb, "movi");
509
510 put_flush_packet(pb);
511
512 return 0;
513 }
514
515 static int avi_write_ix(AVFormatContext *s)
516 {
517 ByteIOContext *pb = &s->pb;
518 AVIContext *avi = s->priv_data;
519 unsigned char tag[5];
520 unsigned char ix_tag[] = "ix00";
521 int i, j;
522
523 assert(!url_is_streamed(pb));
524
525 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
526 return -1;
527
528 for (i=0;i<s->nb_streams;i++) {
529 offset_t ix, pos;
530
531 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
532 ix_tag[3] = '0' + i;
533
534 /* Writing AVI OpenDML leaf index chunk */
535 ix = url_ftell(pb);
536 put_tag(pb, &ix_tag[0]); /* ix?? */
537 put_le32(pb, avi->indexes[i].entry * 8 + 24);
538 /* chunk size */
539 put_le16(pb, 2); /* wLongsPerEntry */
540 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
541 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
542 put_le32(pb, avi->indexes[i].entry);
543 /* nEntriesInUse */
544 put_tag(pb, &tag[0]); /* dwChunkId */
545 put_le64(pb, avi->movi_list);/* qwBaseOffset */
546 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
547
548 for (j=0; j<avi->indexes[i].entry; j++) {
549 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
550 put_le32(pb, ie->pos + 8);
551 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
552 (ie->flags & 0x10 ? 0 : 0x80000000));
553 }
554 put_flush_packet(pb);
555 pos = url_ftell(pb);
556
557 /* Updating one entry in the AVI OpenDML master index */
558 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
559 put_tag(pb, "indx"); /* enabling this entry */
560 url_fskip(pb, 8);
561 put_le32(pb, avi->riff_id); /* nEntriesInUse */
562 url_fskip(pb, 16*avi->riff_id);
563 put_le64(pb, ix); /* qwOffset */
564 put_le32(pb, pos - ix); /* dwSize */
565 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
566
567 url_fseek(pb, pos, SEEK_SET);
568 }
569 return 0;
570 }
571
572 static int avi_write_idx1(AVFormatContext *s)
573 {
574 ByteIOContext *pb = &s->pb;
575 AVIContext *avi = s->priv_data;
576 offset_t file_size, idx_chunk;
577 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
578 AVCodecContext *stream;
579 unsigned char tag[5];
580
581 if (!url_is_streamed(pb)) {
582 AVIIentry* ie = 0, *tie;
583 int entry[MAX_STREAMS];
584 int empty, stream_id = -1;
585
586 idx_chunk = start_tag(pb, "idx1");
587 memset(&entry[0], 0, sizeof(entry));
588 do {
589 empty = 1;
590 for (i=0; i<s->nb_streams; i++) {
591 if (avi->indexes[i].entry <= entry[i])
592 continue;
593
594 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
595 if (empty || tie->pos < ie->pos) {
596 ie = tie;
597 stream_id = i;
598 }
599 empty = 0;
600 }
601 if (!empty) {
602 avi_stream2fourcc(&tag[0], stream_id,
603 s->streams[stream_id]->codec->codec_type);
604 put_tag(pb, &tag[0]);
605 put_le32(pb, ie->flags);
606 put_le32(pb, ie->pos);
607 put_le32(pb, ie->len);
608 entry[stream_id]++;
609 }
610 } while (!empty);
611 end_tag(pb, idx_chunk);
612
613 /* Fill in frame/sample counters */
614 file_size = url_ftell(pb);
615 nb_frames = 0;
616 for(n=0;n<s->nb_streams;n++) {
617 assert(avi->frames_hdr_strm[n]);
618 stream = s->streams[n]->codec;
619 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
620 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
621 if (au_ssize == 0) {
622 put_le32(pb, avi->packet_count[n]);
623 } else {
624 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
625 }
626 if(stream->codec_type == CODEC_TYPE_VIDEO)
627 nb_frames = FFMAX(nb_frames, avi->packet_count[n]);
628 }
629 assert(avi->frames_hdr_all);
630 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
631 put_le32(pb, nb_frames);
632 url_fseek(pb, file_size, SEEK_SET);
633 }
634 return 0;
635 }
636
637 static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
638 {
639 AVIContext *avi = s->priv_data;
640 ByteIOContext *pb = &s->pb;
641 unsigned char tag[5];
642 unsigned int flags=0;
643 const int stream_index= pkt->stream_index;
644 AVCodecContext *enc= s->streams[stream_index]->codec;
645 int size= pkt->size;
646
647 // av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
648 while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
649 AVPacket empty_packet;
650
651 av_init_packet(&empty_packet);
652 empty_packet.size= 0;
653 empty_packet.data= NULL;
654 empty_packet.stream_index= stream_index;
655 avi_write_packet(s, &empty_packet);
656 // av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
657 }
658 avi->packet_count[stream_index]++;
659
660 // Make sure to put an OpenDML chunk when the file size exceeds the limits
661 if (!url_is_streamed(pb) &&
662 (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
663
664 avi_write_ix(s);
665 end_tag(pb, avi->movi_list);
666
667 if (avi->riff_id == 1)
668 avi_write_idx1(s);
669
670 end_tag(pb, avi->riff_start);
671 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
672 }
673
674 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
675 if(pkt->flags&PKT_FLAG_KEY)
676 flags = 0x10;
677 if (enc->codec_type == CODEC_TYPE_AUDIO) {
678 avi->audio_strm_length[stream_index] += size;
679 }
680
681 if (!url_is_streamed(&s->pb)) {
682 AVIIndex* idx = &avi->indexes[stream_index];
683 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
684 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
685 if (idx->ents_allocated <= idx->entry) {
686 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
687 if (!idx->cluster)
688 return -1;
689 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
690 if (!idx->cluster[cl])
691 return -1;
692 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
693 }
694
695 idx->cluster[cl][id].flags = flags;
696 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
697 idx->cluster[cl][id].len = size;
698 idx->entry++;
699 }
700
701 put_buffer(pb, tag, 4);
702 put_le32(pb, size);
703 put_buffer(pb, pkt->data, size);
704 if (size & 1)
705 put_byte(pb, 0);
706
707 put_flush_packet(pb);
708 return 0;
709 }
710
711 static int avi_write_trailer(AVFormatContext *s)
712 {
713 AVIContext *avi = s->priv_data;
714 ByteIOContext *pb = &s->pb;
715 int res = 0;
716 int i, j, n, nb_frames;
717 offset_t file_size;
718
719 if (!url_is_streamed(pb))
720 {
721 if (avi->riff_id == 1) {
722 end_tag(pb, avi->movi_list);
723 res = avi_write_idx1(s);
724 end_tag(pb, avi->riff_start);
725 } else {
726 avi_write_ix(s);
727 end_tag(pb, avi->movi_list);
728 end_tag(pb, avi->riff_start);
729
730 file_size = url_ftell(pb);
731 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
732 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
733 url_fskip(pb, 16);
734
735 for (n=nb_frames=0;n<s->nb_streams;n++) {
736 AVCodecContext *stream = s->streams[n]->codec;
737 if (stream->codec_type == CODEC_TYPE_VIDEO) {
738 if (nb_frames < avi->packet_count[n])
739 nb_frames = avi->packet_count[n];
740 } else {
741 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
742 nb_frames += avi->packet_count[n];
743 }
744 }
745 }
746 put_le32(pb, nb_frames);
747 url_fseek(pb, file_size, SEEK_SET);
748 }
749 }
750 put_flush_packet(pb);
751
752 for (i=0; i<MAX_STREAMS; i++) {
753 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
754 av_free(avi->indexes[i].cluster[j]);
755 av_free(avi->indexes[i].cluster);
756 avi->indexes[i].cluster = NULL;
757 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
758 }
759
760 return res;
761 }
762
763 static AVOutputFormat avi_oformat = {
764 "avi",
765 "avi format",
766 "video/x-msvideo",
767 "avi",
768 sizeof(AVIContext),
769 CODEC_ID_MP2,
770 CODEC_ID_MPEG4,
771 avi_write_header,
772 avi_write_packet,
773 avi_write_trailer,
774 };
775
776 int avienc_init(void)
777 {
778 av_register_output_format(&avi_oformat);
779 return 0;
780 }
781 #endif //CONFIG_MUXERS