dbb301dc13f08da6f7bf80f2ae14f3c20c63b6be
[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_RAWVIDEO, 0 },
204 { CODEC_ID_NONE, 0 },
205 };
206
207 unsigned int codec_get_tag(const CodecTag *tags, int id)
208 {
209 while (tags->id != CODEC_ID_NONE) {
210 if (tags->id == id)
211 return tags->tag;
212 tags++;
213 }
214 return 0;
215 }
216
217 static unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id)
218 {
219 while (tags->id != CODEC_ID_NONE) {
220 if (!tags->invalid_asf && tags->id == id)
221 return tags->tag;
222 tags++;
223 }
224 return 0;
225 }
226
227 enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
228 {
229 while (tags->id != CODEC_ID_NONE) {
230 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
231 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
232 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
233 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
234 return tags->id;
235 tags++;
236 }
237 return CODEC_ID_NONE;
238 }
239
240 unsigned int codec_get_bmp_tag(int id)
241 {
242 return codec_get_tag(codec_bmp_tags, id);
243 }
244
245 unsigned int codec_get_wav_tag(int id)
246 {
247 return codec_get_tag(codec_wav_tags, id);
248 }
249
250 enum CodecID codec_get_bmp_id(unsigned int tag)
251 {
252 return codec_get_id(codec_bmp_tags, tag);
253 }
254
255 enum CodecID codec_get_wav_id(unsigned int tag)
256 {
257 return codec_get_id(codec_wav_tags, tag);
258 }
259
260 #ifdef CONFIG_MUXERS
261 /* BITMAPINFOHEADER header */
262 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
263 {
264 put_le32(pb, 40 + enc->extradata_size); /* size */
265 put_le32(pb, enc->width);
266 put_le32(pb, enc->height);
267 put_le16(pb, 1); /* planes */
268
269 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
270 /* compression type */
271 put_le32(pb, for_asf ? (enc->codec_tag ? enc->codec_tag : codec_get_asf_tag(tags, enc->codec_id)) : enc->codec_tag); //
272 put_le32(pb, enc->width * enc->height * 3);
273 put_le32(pb, 0);
274 put_le32(pb, 0);
275 put_le32(pb, 0);
276 put_le32(pb, 0);
277
278 put_buffer(pb, enc->extradata, enc->extradata_size);
279
280 if (enc->extradata_size & 1)
281 put_byte(pb, 0);
282 }
283
284 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
285 {
286 int gcd;
287
288 *au_ssize= stream->block_align;
289 if(stream->frame_size && stream->sample_rate){
290 *au_scale=stream->frame_size;
291 *au_rate= stream->sample_rate;
292 }else if(stream->codec_type == CODEC_TYPE_VIDEO){
293 *au_scale= stream->time_base.num;
294 *au_rate = stream->time_base.den;
295 }else{
296 *au_scale= stream->block_align ? stream->block_align*8 : 8;
297 *au_rate = stream->bit_rate;
298 }
299 gcd= ff_gcd(*au_scale, *au_rate);
300 *au_scale /= gcd;
301 *au_rate /= gcd;
302 }
303
304 static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
305 const char* riff_tag, const char* list_tag)
306 {
307 offset_t loff;
308 int i;
309
310 avi->riff_id++;
311 for (i=0; i<MAX_STREAMS; i++)
312 avi->indexes[i].entry = 0;
313
314 avi->riff_start = start_tag(pb, "RIFF");
315 put_tag(pb, riff_tag);
316 loff = start_tag(pb, "LIST");
317 put_tag(pb, list_tag);
318 return loff;
319 }
320
321 static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
322 enum CodecType type)
323 {
324 tag[0] = '0';
325 tag[1] = '0' + index;
326 if (type == CODEC_TYPE_VIDEO) {
327 tag[2] = 'd';
328 tag[3] = 'c';
329 } else {
330 tag[2] = 'w';
331 tag[3] = 'b';
332 }
333 tag[4] = '\0';
334 return tag;
335 }
336
337 static int avi_write_header(AVFormatContext *s)
338 {
339 AVIContext *avi = s->priv_data;
340 ByteIOContext *pb = &s->pb;
341 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
342 AVCodecContext *stream, *video_enc;
343 offset_t list1, list2, strh, strf;
344
345 /* header list */
346 avi->riff_id = 0;
347 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
348
349 /* avi header */
350 put_tag(pb, "avih");
351 put_le32(pb, 14 * 4);
352 bitrate = 0;
353
354 video_enc = NULL;
355 for(n=0;n<s->nb_streams;n++) {
356 stream = s->streams[n]->codec;
357 bitrate += stream->bit_rate;
358 if (stream->codec_type == CODEC_TYPE_VIDEO)
359 video_enc = stream;
360 }
361
362 nb_frames = 0;
363
364 if(video_enc){
365 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
366 } else {
367 put_le32(pb, 0);
368 }
369 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
370 put_le32(pb, 0); /* padding */
371 if (url_is_streamed(pb))
372 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
373 else
374 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
375 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
376 put_le32(pb, nb_frames); /* nb frames, filled later */
377 put_le32(pb, 0); /* initial frame */
378 put_le32(pb, s->nb_streams); /* nb streams */
379 put_le32(pb, 1024 * 1024); /* suggested buffer size */
380 if(video_enc){
381 put_le32(pb, video_enc->width);
382 put_le32(pb, video_enc->height);
383 } else {
384 put_le32(pb, 0);
385 put_le32(pb, 0);
386 }
387 put_le32(pb, 0); /* reserved */
388 put_le32(pb, 0); /* reserved */
389 put_le32(pb, 0); /* reserved */
390 put_le32(pb, 0); /* reserved */
391
392 /* stream list */
393 for(i=0;i<n;i++) {
394 list2 = start_tag(pb, "LIST");
395 put_tag(pb, "strl");
396
397 stream = s->streams[i]->codec;
398
399 /* FourCC should really be set by the codec itself */
400 if (! stream->codec_tag) {
401 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
402 }
403
404 /* stream generic header */
405 strh = start_tag(pb, "strh");
406 switch(stream->codec_type) {
407 case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); break;
408 case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break;
409 // case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break;
410 case CODEC_TYPE_DATA : put_tag(pb, "dats"); break;
411 }
412 if(stream->codec_type == CODEC_TYPE_VIDEO)
413 put_le32(pb, stream->codec_tag);
414 else
415 put_le32(pb, 1);
416 put_le32(pb, 0); /* flags */
417 put_le16(pb, 0); /* priority */
418 put_le16(pb, 0); /* language */
419 put_le32(pb, 0); /* initial frame */
420
421 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
422
423 put_le32(pb, au_scale); /* scale */
424 put_le32(pb, au_byterate); /* rate */
425 av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
426
427 put_le32(pb, 0); /* start */
428 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
429 if (url_is_streamed(pb))
430 put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
431 else
432 put_le32(pb, 0); /* length, XXX: filled later */
433
434 /* suggested buffer size */ //FIXME set at the end to largest chunk
435 if(stream->codec_type == CODEC_TYPE_VIDEO)
436 put_le32(pb, 1024 * 1024);
437 else if(stream->codec_type == CODEC_TYPE_AUDIO)
438 put_le32(pb, 12 * 1024);
439 else
440 put_le32(pb, 0);
441 put_le32(pb, -1); /* quality */
442 put_le32(pb, au_ssize); /* sample size */
443 put_le32(pb, 0);
444 put_le16(pb, stream->width);
445 put_le16(pb, stream->height);
446 end_tag(pb, strh);
447
448 if(stream->codec_type != CODEC_TYPE_DATA){
449 strf = start_tag(pb, "strf");
450 switch(stream->codec_type) {
451 case CODEC_TYPE_VIDEO:
452 put_bmp_header(pb, stream, codec_bmp_tags, 0);
453 break;
454 case CODEC_TYPE_AUDIO:
455 if (put_wav_header(pb, stream) < 0) {
456 av_free(avi);
457 return -1;
458 }
459 break;
460 default:
461 return -1;
462 }
463 end_tag(pb, strf);
464 }
465
466 if (!url_is_streamed(pb)) {
467 unsigned char tag[5];
468 int j;
469
470 /* Starting to lay out AVI OpenDML master index.
471 * We want to make it JUNK entry for now, since we'd
472 * like to get away without making AVI an OpenDML one
473 * for compatibility reasons.
474 */
475 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
476 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
477 put_le16(pb, 4); /* wLongsPerEntry */
478 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
479 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
480 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
481 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
482 /* dwChunkId */
483 put_le64(pb, 0); /* dwReserved[3]
484 put_le32(pb, 0); Must be 0. */
485 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
486 put_le64(pb, 0);
487 end_tag(pb, avi->indexes[i].indx_start);
488 }
489
490 end_tag(pb, list2);
491 }
492
493 if (!url_is_streamed(pb)) {
494 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
495 avi->odml_list = start_tag(pb, "JUNK");
496 put_tag(pb, "odml");
497 put_tag(pb, "dmlh");
498 put_le32(pb, 248);
499 for (i = 0; i < 248; i+= 4)
500 put_le32(pb, 0);
501 end_tag(pb, avi->odml_list);
502 }
503
504 end_tag(pb, list1);
505
506 avi->movi_list = start_tag(pb, "LIST");
507 put_tag(pb, "movi");
508
509 put_flush_packet(pb);
510
511 return 0;
512 }
513
514 static int avi_write_ix(AVFormatContext *s)
515 {
516 ByteIOContext *pb = &s->pb;
517 AVIContext *avi = s->priv_data;
518 unsigned char tag[5];
519 unsigned char ix_tag[] = "ix00";
520 int i, j;
521
522 assert(!url_is_streamed(pb));
523
524 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
525 return -1;
526
527 for (i=0;i<s->nb_streams;i++) {
528 offset_t ix, pos;
529
530 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
531 ix_tag[3] = '0' + i;
532
533 /* Writing AVI OpenDML leaf index chunk */
534 ix = url_ftell(pb);
535 put_tag(pb, &ix_tag[0]); /* ix?? */
536 put_le32(pb, avi->indexes[i].entry * 8 + 24);
537 /* chunk size */
538 put_le16(pb, 2); /* wLongsPerEntry */
539 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
540 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
541 put_le32(pb, avi->indexes[i].entry);
542 /* nEntriesInUse */
543 put_tag(pb, &tag[0]); /* dwChunkId */
544 put_le64(pb, avi->movi_list);/* qwBaseOffset */
545 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
546
547 for (j=0; j<avi->indexes[i].entry; j++) {
548 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
549 put_le32(pb, ie->pos + 8);
550 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
551 (ie->flags & 0x10 ? 0 : 0x80000000));
552 }
553 put_flush_packet(pb);
554 pos = url_ftell(pb);
555
556 /* Updating one entry in the AVI OpenDML master index */
557 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
558 put_tag(pb, "indx"); /* enabling this entry */
559 url_fskip(pb, 8);
560 put_le32(pb, avi->riff_id); /* nEntriesInUse */
561 url_fskip(pb, 16*avi->riff_id);
562 put_le64(pb, ix); /* qwOffset */
563 put_le32(pb, pos - ix); /* dwSize */
564 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
565
566 url_fseek(pb, pos, SEEK_SET);
567 }
568 return 0;
569 }
570
571 static int avi_write_idx1(AVFormatContext *s)
572 {
573 ByteIOContext *pb = &s->pb;
574 AVIContext *avi = s->priv_data;
575 offset_t file_size, idx_chunk;
576 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
577 AVCodecContext *stream;
578 unsigned char tag[5];
579
580 if (!url_is_streamed(pb)) {
581 AVIIentry* ie = 0, *tie;
582 int entry[MAX_STREAMS];
583 int empty, stream_id = -1;
584
585 idx_chunk = start_tag(pb, "idx1");
586 memset(&entry[0], 0, sizeof(entry));
587 do {
588 empty = 1;
589 for (i=0; i<s->nb_streams; i++) {
590 if (avi->indexes[i].entry <= entry[i])
591 continue;
592
593 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
594 if (empty || tie->pos < ie->pos) {
595 ie = tie;
596 stream_id = i;
597 }
598 empty = 0;
599 }
600 if (!empty) {
601 avi_stream2fourcc(&tag[0], stream_id,
602 s->streams[stream_id]->codec->codec_type);
603 put_tag(pb, &tag[0]);
604 put_le32(pb, ie->flags);
605 put_le32(pb, ie->pos);
606 put_le32(pb, ie->len);
607 entry[stream_id]++;
608 }
609 } while (!empty);
610 end_tag(pb, idx_chunk);
611
612 /* Fill in frame/sample counters */
613 file_size = url_ftell(pb);
614 nb_frames = 0;
615 for(n=0;n<s->nb_streams;n++) {
616 assert(avi->frames_hdr_strm[n]);
617 stream = s->streams[n]->codec;
618 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
619 ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
620 if (au_ssize == 0) {
621 put_le32(pb, avi->packet_count[n]);
622 } else {
623 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
624 }
625 if(stream->codec_type == CODEC_TYPE_VIDEO)
626 nb_frames = FFMAX(nb_frames, avi->packet_count[n]);
627 }
628 assert(avi->frames_hdr_all);
629 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
630 put_le32(pb, nb_frames);
631 url_fseek(pb, file_size, SEEK_SET);
632 }
633 return 0;
634 }
635
636 static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
637 {
638 AVIContext *avi = s->priv_data;
639 ByteIOContext *pb = &s->pb;
640 unsigned char tag[5];
641 unsigned int flags=0;
642 const int stream_index= pkt->stream_index;
643 AVCodecContext *enc= s->streams[stream_index]->codec;
644 int size= pkt->size;
645
646 // av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
647 while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
648 AVPacket empty_packet;
649
650 av_init_packet(&empty_packet);
651 empty_packet.size= 0;
652 empty_packet.data= NULL;
653 empty_packet.stream_index= stream_index;
654 avi_write_packet(s, &empty_packet);
655 // av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
656 }
657 avi->packet_count[stream_index]++;
658
659 // Make sure to put an OpenDML chunk when the file size exceeds the limits
660 if (!url_is_streamed(pb) &&
661 (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
662
663 avi_write_ix(s);
664 end_tag(pb, avi->movi_list);
665
666 if (avi->riff_id == 1)
667 avi_write_idx1(s);
668
669 end_tag(pb, avi->riff_start);
670 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
671 }
672
673 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
674 if(pkt->flags&PKT_FLAG_KEY)
675 flags = 0x10;
676 if (enc->codec_type == CODEC_TYPE_AUDIO) {
677 avi->audio_strm_length[stream_index] += size;
678 }
679
680 if (!url_is_streamed(&s->pb)) {
681 AVIIndex* idx = &avi->indexes[stream_index];
682 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
683 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
684 if (idx->ents_allocated <= idx->entry) {
685 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
686 if (!idx->cluster)
687 return -1;
688 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
689 if (!idx->cluster[cl])
690 return -1;
691 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
692 }
693
694 idx->cluster[cl][id].flags = flags;
695 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
696 idx->cluster[cl][id].len = size;
697 idx->entry++;
698 }
699
700 put_buffer(pb, tag, 4);
701 put_le32(pb, size);
702 put_buffer(pb, pkt->data, size);
703 if (size & 1)
704 put_byte(pb, 0);
705
706 put_flush_packet(pb);
707 return 0;
708 }
709
710 static int avi_write_trailer(AVFormatContext *s)
711 {
712 AVIContext *avi = s->priv_data;
713 ByteIOContext *pb = &s->pb;
714 int res = 0;
715 int i, j, n, nb_frames;
716 offset_t file_size;
717
718 if (!url_is_streamed(pb))
719 {
720 if (avi->riff_id == 1) {
721 end_tag(pb, avi->movi_list);
722 res = avi_write_idx1(s);
723 end_tag(pb, avi->riff_start);
724 } else {
725 avi_write_ix(s);
726 end_tag(pb, avi->movi_list);
727 end_tag(pb, avi->riff_start);
728
729 file_size = url_ftell(pb);
730 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
731 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
732 url_fskip(pb, 16);
733
734 for (n=nb_frames=0;n<s->nb_streams;n++) {
735 AVCodecContext *stream = s->streams[n]->codec;
736 if (stream->codec_type == CODEC_TYPE_VIDEO) {
737 if (nb_frames < avi->packet_count[n])
738 nb_frames = avi->packet_count[n];
739 } else {
740 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
741 nb_frames += avi->packet_count[n];
742 }
743 }
744 }
745 put_le32(pb, nb_frames);
746 url_fseek(pb, file_size, SEEK_SET);
747 }
748 }
749 put_flush_packet(pb);
750
751 for (i=0; i<MAX_STREAMS; i++) {
752 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
753 av_free(avi->indexes[i].cluster[j]);
754 av_free(avi->indexes[i].cluster);
755 avi->indexes[i].cluster = NULL;
756 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
757 }
758
759 return res;
760 }
761
762 static AVOutputFormat avi_oformat = {
763 "avi",
764 "avi format",
765 "video/x-msvideo",
766 "avi",
767 sizeof(AVIContext),
768 CODEC_ID_MP2,
769 CODEC_ID_MPEG4,
770 avi_write_header,
771 avi_write_packet,
772 avi_write_trailer,
773 };
774
775 int avienc_init(void)
776 {
777 av_register_output_format(&avi_oformat);
778 return 0;
779 }
780 #endif //CONFIG_MUXERS