3 * Copyright (c) 2000 Fabrice Bellard.
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.
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.
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
24 * - fill all fields if non streamed (nb_frames for example)
27 typedef struct AVIIentry {
28 unsigned int flags, pos, len;
31 #define AVI_INDEX_CLUSTER_SIZE 16384
33 typedef struct AVIIndex {
41 offset_t riff_start, movi_list, odml_list;
42 offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
43 int audio_strm_length[MAX_STREAMS];
46 AVIIndex indexes[MAX_STREAMS];
49 static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
51 int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
52 int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
53 return &idx->cluster[cl][id];
56 offset_t start_tag(ByteIOContext *pb, const char *tag)
63 void end_tag(ByteIOContext *pb, offset_t start)
68 url_fseek(pb, start - 4, SEEK_SET);
69 put_le32(pb, (uint32_t)(pos - start));
70 url_fseek(pb, pos, SEEK_SET);
73 /* Note: when encoding, the first matching tag is used, so order is
74 important if multiple tags possible for a given codec. */
75 const CodecTag codec_bmp_tags[] = {
76 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
77 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
78 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
80 /* added based on MPlayer */
81 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
82 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
84 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
85 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
86 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
87 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
88 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
89 { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
91 /* added based on MPlayer */
92 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
93 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
94 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
95 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
97 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
98 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
100 /* added based on MPlayer */
101 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
102 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
103 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
104 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
105 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
106 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
107 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
109 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
111 /* added based on MPlayer */
112 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
114 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
116 /* added based on MPlayer */
117 { CODEC_ID_MSMPEG4V1, MKTAG('D', 'I', 'V', '4') },
119 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
121 /* added based on MPlayer */
122 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
123 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
124 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
125 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
126 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
127 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
128 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
129 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
130 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
131 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
132 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
133 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
134 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
135 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
136 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
137 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
138 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
139 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
140 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
141 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
142 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
143 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
144 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
145 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
146 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
150 unsigned int codec_get_tag(const CodecTag *tags, int id)
152 while (tags->id != 0) {
160 static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
162 while (tags->id != 0) {
163 if (!tags->invalid_asf && tags->id == id)
170 enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
172 while (tags->id != 0) {
173 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
174 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
175 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
176 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
180 return CODEC_ID_NONE;
183 unsigned int codec_get_bmp_tag(int id)
185 return codec_get_tag(codec_bmp_tags, id);
188 unsigned int codec_get_wav_tag(int id)
190 return codec_get_tag(codec_wav_tags, id);
193 enum CodecID codec_get_bmp_id(unsigned int tag)
195 return codec_get_id(codec_bmp_tags, tag);
198 enum CodecID codec_get_wav_id(unsigned int tag)
200 return codec_get_id(codec_wav_tags, tag);
203 /* BITMAPINFOHEADER header */
204 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
206 put_le32(pb, 40 + enc->extradata_size); /* size */
207 put_le32(pb, enc->width);
208 put_le32(pb, enc->height);
209 put_le16(pb, 1); /* planes */
211 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
212 /* compression type */
213 put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag);
214 put_le32(pb, enc->width * enc->height * 3);
220 put_buffer(pb, enc->extradata, enc->extradata_size);
222 if (enc->extradata_size & 1)
226 static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
228 switch(stream->codec_id) {
229 case CODEC_ID_PCM_S16LE:
230 *au_scale = *au_ssize = 2*stream->channels;
231 *au_byterate = *au_ssize * stream->sample_rate;
233 case CODEC_ID_PCM_U8:
234 case CODEC_ID_PCM_ALAW:
235 case CODEC_ID_PCM_MULAW:
236 *au_scale = *au_ssize = stream->channels;
237 *au_byterate = *au_ssize * stream->sample_rate;
242 *au_byterate = stream->bit_rate / 8;
246 *au_byterate = stream->bit_rate / 8;
250 *au_byterate = stream->bit_rate / 8;
255 static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
256 const char* riff_tag, const char* list_tag)
262 for (i=0; i<MAX_STREAMS; i++)
263 avi->indexes[i].entry = 0;
265 avi->riff_start = start_tag(pb, "RIFF");
266 put_tag(pb, riff_tag);
267 loff = start_tag(pb, "LIST");
268 put_tag(pb, list_tag);
272 static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
276 tag[1] = '0' + index;
277 if (type == CODEC_TYPE_VIDEO) {
288 static int avi_write_header(AVFormatContext *s)
290 AVIContext *avi = s->priv_data;
291 ByteIOContext *pb = &s->pb;
292 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
293 AVCodecContext *stream, *video_enc;
294 offset_t list1, list2, strh, strf;
298 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
302 put_le32(pb, 14 * 4);
306 for(n=0;n<s->nb_streams;n++) {
307 stream = &s->streams[n]->codec;
308 bitrate += stream->bit_rate;
309 if (stream->codec_type == CODEC_TYPE_VIDEO)
316 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
320 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
321 put_le32(pb, 0); /* padding */
322 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
323 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
324 put_le32(pb, nb_frames); /* nb frames, filled later */
325 put_le32(pb, 0); /* initial frame */
326 put_le32(pb, s->nb_streams); /* nb streams */
327 put_le32(pb, 1024 * 1024); /* suggested buffer size */
329 put_le32(pb, video_enc->width);
330 put_le32(pb, video_enc->height);
335 put_le32(pb, 0); /* reserved */
336 put_le32(pb, 0); /* reserved */
337 put_le32(pb, 0); /* reserved */
338 put_le32(pb, 0); /* reserved */
342 list2 = start_tag(pb, "LIST");
345 stream = &s->streams[i]->codec;
347 /* FourCC should really be set by the codec itself */
348 if (! stream->codec_tag) {
349 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
352 /* stream generic header */
353 strh = start_tag(pb, "strh");
354 switch(stream->codec_type) {
355 case CODEC_TYPE_VIDEO:
357 put_le32(pb, stream->codec_tag);
358 put_le32(pb, 0); /* flags */
359 put_le16(pb, 0); /* priority */
360 put_le16(pb, 0); /* language */
361 put_le32(pb, 0); /* initial frame */
363 put_le32(pb, stream->frame_rate_base); /* scale */
364 put_le32(pb, stream->frame_rate); /* rate */
366 put_le32(pb, 0); /* start */
367 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
368 put_le32(pb, nb_frames); /* length, XXX: fill later */
369 put_le32(pb, 1024 * 1024); /* suggested buffer size */
370 put_le32(pb, -1); /* quality */
371 put_le32(pb, stream->width * stream->height * 3); /* sample size */
374 put_le16(pb, stream->width);
375 put_le16(pb, stream->height);
377 case CODEC_TYPE_AUDIO:
379 put_le32(pb, 1); /* tag */
380 put_le32(pb, 0); /* flags */
381 put_le16(pb, 0); /* priority */
382 put_le16(pb, 0); /* language */
383 put_le32(pb, 0); /* initial frame */
384 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
385 put_le32(pb, au_scale); /* scale */
386 put_le32(pb, au_byterate); /* rate */
387 put_le32(pb, 0); /* start */
388 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
389 put_le32(pb, 0); /* length, XXX: filled later */
390 put_le32(pb, 12 * 1024); /* suggested buffer size */
391 put_le32(pb, -1); /* quality */
392 put_le32(pb, au_ssize); /* sample size */
401 strf = start_tag(pb, "strf");
402 switch(stream->codec_type) {
403 case CODEC_TYPE_VIDEO:
404 put_bmp_header(pb, stream, codec_bmp_tags, 0);
406 case CODEC_TYPE_AUDIO:
407 if (put_wav_header(pb, stream) < 0) {
417 if (!url_is_streamed(pb)) {
418 unsigned char tag[5];
421 /* Starting to lay out AVI OpenDML master index.
422 * We want to make it JUNK entry for now, since we'd
423 * like to get away without making AVI an OpenDML one
424 * for compatibility reasons.
426 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
427 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
428 put_le16(pb, 4); /* wLongsPerEntry */
429 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
430 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
431 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
432 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
434 put_le64(pb, 0); /* dwReserved[3]
435 put_le32(pb, 0); Must be 0. */
436 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
438 end_tag(pb, avi->indexes[i].indx_start);
444 if (!url_is_streamed(pb)) {
445 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
446 avi->odml_list = start_tag(pb, "JUNK");
450 for (i = 0; i < 248; i+= 4)
452 end_tag(pb, avi->odml_list);
457 avi->movi_list = start_tag(pb, "LIST");
460 put_flush_packet(pb);
465 static int avi_write_ix(AVFormatContext *s)
467 ByteIOContext *pb = &s->pb;
468 AVIContext *avi = s->priv_data;
469 unsigned char tag[5];
470 unsigned char ix_tag[] = "ix00";
473 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
476 for (i=0;i<s->nb_streams;i++) {
479 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
482 /* Writing AVI OpenDML leaf index chunk */
484 put_tag(pb, &ix_tag[0]); /* ix?? */
485 put_le32(pb, avi->indexes[i].entry * 8 + 24);
487 put_le16(pb, 2); /* wLongsPerEntry */
488 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
489 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
490 put_le32(pb, avi->indexes[i].entry);
492 put_tag(pb, &tag[0]); /* dwChunkId */
493 put_le64(pb, avi->movi_list);/* qwBaseOffset */
494 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
496 for (j=0; j<avi->indexes[i].entry; j++) {
497 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
498 put_le32(pb, ie->pos + 8);
499 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
500 (ie->flags & 0x10 ? 0 : 0x80000000));
502 put_flush_packet(pb);
505 /* Updating one entry in the AVI OpenDML master index */
506 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
507 put_tag(pb, "indx"); /* enabling this entry */
509 put_le32(pb, avi->riff_id); /* nEntriesInUse */
510 url_fskip(pb, 16*avi->riff_id);
511 put_le64(pb, ix); /* qwOffset */
512 put_le32(pb, pos - ix); /* dwSize */
513 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
515 url_fseek(pb, pos, SEEK_SET);
520 static int avi_write_idx1(AVFormatContext *s)
522 ByteIOContext *pb = &s->pb;
523 AVIContext *avi = s->priv_data;
524 offset_t file_size, idx_chunk;
525 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
526 AVCodecContext *stream;
527 unsigned char tag[5];
529 if (!url_is_streamed(pb)) {
530 AVIIentry* ie = 0, *tie;
531 int entry[MAX_STREAMS];
532 int empty, stream_id = -1;
534 idx_chunk = start_tag(pb, "idx1");
535 memset(&entry[0], 0, sizeof(entry));
538 for (i=0; i<s->nb_streams; i++) {
539 if (avi->indexes[i].entry <= entry[i])
542 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
543 if (empty || tie->pos < ie->pos) {
550 avi_stream2fourcc(&tag[0], stream_id,
551 s->streams[stream_id]->codec.codec_type);
552 put_tag(pb, &tag[0]);
553 put_le32(pb, ie->flags);
554 put_le32(pb, ie->pos);
555 put_le32(pb, ie->len);
559 end_tag(pb, idx_chunk);
561 /* Fill in frame/sample counters */
562 file_size = url_ftell(pb);
564 for(n=0;n<s->nb_streams;n++) {
565 if (avi->frames_hdr_strm[n] != 0) {
566 stream = &s->streams[n]->codec;
567 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
568 if (stream->codec_type == CODEC_TYPE_VIDEO) {
569 put_le32(pb, stream->frame_number);
570 if (nb_frames < stream->frame_number)
571 nb_frames = stream->frame_number;
573 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
574 put_le32(pb, stream->frame_number);
575 nb_frames += stream->frame_number;
577 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
578 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
583 if (avi->frames_hdr_all != 0) {
584 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
585 put_le32(pb, nb_frames);
587 url_fseek(pb, file_size, SEEK_SET);
592 static int avi_write_packet(AVFormatContext *s, int stream_index,
593 const uint8_t *buf, int size, int64_t pts)
595 AVIContext *avi = s->priv_data;
596 ByteIOContext *pb = &s->pb;
597 unsigned char tag[5];
601 if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) {
603 end_tag(pb, avi->movi_list);
605 if (avi->riff_id == 1)
608 end_tag(pb, avi->riff_start);
609 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
612 enc = &s->streams[stream_index]->codec;
613 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
614 if (enc->codec_type == CODEC_TYPE_AUDIO) {
615 avi->audio_strm_length[stream_index] += size;
618 flags = enc->coded_frame->key_frame ? 0x10 : 0x00;
620 if (!url_is_streamed(&s->pb)) {
621 AVIIndex* idx = &avi->indexes[stream_index];
622 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
623 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
624 if (idx->ents_allocated <= idx->entry) {
625 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
628 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
629 if (!idx->cluster[cl])
631 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
634 idx->cluster[cl][id].flags = flags;
635 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
636 idx->cluster[cl][id].len = size;
640 put_buffer(pb, tag, 4);
642 put_buffer(pb, buf, size);
646 put_flush_packet(pb);
650 static int avi_write_trailer(AVFormatContext *s)
652 AVIContext *avi = s->priv_data;
653 ByteIOContext *pb = &s->pb;
655 int i, j, n, nb_frames;
658 if (avi->riff_id == 1) {
659 end_tag(pb, avi->movi_list);
660 res = avi_write_idx1(s);
661 end_tag(pb, avi->riff_start);
664 end_tag(pb, avi->movi_list);
665 end_tag(pb, avi->riff_start);
667 file_size = url_ftell(pb);
668 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
669 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
672 for (n=nb_frames=0;n<s->nb_streams;n++) {
673 AVCodecContext *stream = &s->streams[n]->codec;
674 if (stream->codec_type == CODEC_TYPE_VIDEO) {
675 if (nb_frames < stream->frame_number)
676 nb_frames = stream->frame_number;
678 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
679 nb_frames += stream->frame_number;
683 put_le32(pb, nb_frames);
684 url_fseek(pb, file_size, SEEK_SET);
686 put_flush_packet(pb);
688 for (i=0; i<MAX_STREAMS; i++) {
689 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
690 av_free(avi->indexes[i].cluster[j]);
691 av_free(avi->indexes[i].cluster);
692 avi->indexes[i].cluster = NULL;
693 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
699 static AVOutputFormat avi_oformat = {
712 int avienc_init(void)
714 av_register_output_format(&avi_oformat);