coefficient saturation fix
[libav.git] / libavformat / avienc.c
CommitLineData
de6d9b64
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1/*
2 * AVI encoder.
19720f15 3 * Copyright (c) 2000 Fabrice Bellard.
de6d9b64 4 *
19720f15
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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.
de6d9b64 9 *
19720f15 10 * This library is distributed in the hope that it will be useful,
de6d9b64 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
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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
de6d9b64 18 */
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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
764ef400 27#ifdef CONFIG_ENCODERS
e738cee9 28typedef struct AVIIentry {
de6d9b64 29 unsigned int flags, pos, len;
e738cee9
RS
30} AVIIentry;
31
32#define AVI_INDEX_CLUSTER_SIZE 16384
33
34typedef struct AVIIndex {
35 offset_t indx_start;
36 int entry;
37 int ents_allocated;
38 AVIIentry** cluster;
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FB
39} AVIIndex;
40
41typedef struct {
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42 offset_t riff_start, movi_list, odml_list;
43 offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
86bec9a1 44 int audio_strm_length[MAX_STREAMS];
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45 int riff_id;
46
47 AVIIndex indexes[MAX_STREAMS];
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48} AVIContext;
49
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50static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
51{
52 int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
53 int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
54 return &idx->cluster[cl][id];
55}
56
0570bf06 57offset_t start_tag(ByteIOContext *pb, const char *tag)
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58{
59 put_tag(pb, tag);
60 put_le32(pb, 0);
61 return url_ftell(pb);
62}
63
64void end_tag(ByteIOContext *pb, offset_t start)
65{
66 offset_t pos;
67
68 pos = url_ftell(pb);
69 url_fseek(pb, start - 4, SEEK_SET);
0c1a9eda 70 put_le32(pb, (uint32_t)(pos - start));
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71 url_fseek(pb, pos, SEEK_SET);
72}
764ef400 73#endif //CONFIG_ENCODERS
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74
75/* Note: when encoding, the first matching tag is used, so order is
76 important if multiple tags possible for a given codec. */
0570bf06 77const CodecTag codec_bmp_tags[] = {
cc15c931
LA
78 { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
79
95c79a24
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80 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
81 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
de6d9b64 82 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
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83
84 /* added based on MPlayer */
a05c8d71 85 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
a05c8d71
MN
86 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
87
b1d89f82 88 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
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MR
89 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
90 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
390dffc5
MN
91 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
92 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
58f26ba9 93 { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
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94
95 /* added based on MPlayer */
96 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
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97 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
98 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
99 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
100
b1d89f82 101 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
bb3debab 102 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
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103
104 /* added based on MPlayer */
105 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
a05c8d71 106 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
a05c8d71 107 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
a05c8d71 108 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
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109 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
110 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
a05c8d71 111 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
a05c8d71 112
bb3debab 113 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
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114
115 /* added based on MPlayer */
116 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
a05c8d71 117
9b030d9d 118 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
a05c8d71 119
9b030d9d 120 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
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121
122 /* added based on MPlayer */
e23d5712 123 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
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124 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
125 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
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126 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
127 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
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FB
128 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
129 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
b4c64c50 130 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
1cbc2890 131 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
6b17c988 132 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
c60d6ad4
MN
133 { CODEC_ID_MPEG1VIDEO, 0x10000001 },
134 { CODEC_ID_MPEG2VIDEO, 0x10000002 },
bb15f7fd 135 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
ccafe7b1 136 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
5b9d235f 137 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
ccafe7b1 138 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
f560dd82 139 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
1e711bd6 140 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
e8750b00 141 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
e8b478c1 142 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
deabd4fd
MM
143 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
144 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
d86053a4 145 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
9ca9fce1 146 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
8d876a43 147 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
be3564ed 148 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
7408ad05 149 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
9e8cd0db 150 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
2fdf638b
MM
151 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
152 { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
153 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
154 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
155 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
156 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
157 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
158 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
159 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
b7cbfc23 160 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
a273bbfb
RT
161 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
162 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
7585aa5c 163 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
ee777235 164 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
d9171299 165 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
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166 { 0, 0 },
167};
168
a266644f 169unsigned int codec_get_tag(const CodecTag *tags, int id)
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170{
171 while (tags->id != 0) {
172 if (tags->id == id)
173 return tags->tag;
174 tags++;
175 }
176 return 0;
177}
178
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179static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
180{
181 while (tags->id != 0) {
182 if (!tags->invalid_asf && tags->id == id)
183 return tags->tag;
184 tags++;
185 }
186 return 0;
187}
188
5d234974 189enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
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190{
191 while (tags->id != 0) {
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MN
192 if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
193 && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
194 && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
195 && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
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196 return tags->id;
197 tags++;
198 }
5d234974 199 return CODEC_ID_NONE;
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200}
201
202unsigned int codec_get_bmp_tag(int id)
203{
204 return codec_get_tag(codec_bmp_tags, id);
205}
206
3aa180b8
AB
207unsigned int codec_get_wav_tag(int id)
208{
209 return codec_get_tag(codec_wav_tags, id);
210}
211
212enum CodecID codec_get_bmp_id(unsigned int tag)
213{
214 return codec_get_id(codec_bmp_tags, tag);
215}
216
217enum CodecID codec_get_wav_id(unsigned int tag)
218{
219 return codec_get_id(codec_wav_tags, tag);
220}
221
764ef400 222#ifdef CONFIG_ENCODERS
de6d9b64 223/* BITMAPINFOHEADER header */
0570bf06 224void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
de6d9b64 225{
952c69c4 226 put_le32(pb, 40 + enc->extradata_size); /* size */
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227 put_le32(pb, enc->width);
228 put_le32(pb, enc->height);
229 put_le16(pb, 1); /* planes */
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230
231 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
de6d9b64 232 /* compression type */
63167088 233 put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag);
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234 put_le32(pb, enc->width * enc->height * 3);
235 put_le32(pb, 0);
236 put_le32(pb, 0);
237 put_le32(pb, 0);
238 put_le32(pb, 0);
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239
240 put_buffer(pb, enc->extradata, enc->extradata_size);
241
242 if (enc->extradata_size & 1)
243 put_byte(pb, 0);
de6d9b64
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244}
245
0570bf06 246static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
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J
247{
248 switch(stream->codec_id) {
249 case CODEC_ID_PCM_S16LE:
250 *au_scale = *au_ssize = 2*stream->channels;
251 *au_byterate = *au_ssize * stream->sample_rate;
252 break;
253 case CODEC_ID_PCM_U8:
254 case CODEC_ID_PCM_ALAW:
255 case CODEC_ID_PCM_MULAW:
256 *au_scale = *au_ssize = stream->channels;
257 *au_byterate = *au_ssize * stream->sample_rate;
258 break;
259 case CODEC_ID_MP2:
260 *au_ssize = 1;
261 *au_scale = 1;
262 *au_byterate = stream->bit_rate / 8;
80783dc2 263 case CODEC_ID_MP3:
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264 *au_ssize = 1;
265 *au_scale = 1;
266 *au_byterate = stream->bit_rate / 8;
86bec9a1
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267 default:
268 *au_ssize = 1;
269 *au_scale = 1;
270 *au_byterate = stream->bit_rate / 8;
271 break;
272 }
273}
274
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RS
275static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
276 const char* riff_tag, const char* list_tag)
277{
278 offset_t loff;
e738cee9
RS
279 int i;
280
281 avi->riff_id++;
282 for (i=0; i<MAX_STREAMS; i++)
283 avi->indexes[i].entry = 0;
284
ce9fce63
RS
285 avi->riff_start = start_tag(pb, "RIFF");
286 put_tag(pb, riff_tag);
287 loff = start_tag(pb, "LIST");
288 put_tag(pb, list_tag);
289 return loff;
290}
291
e738cee9
RS
292static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
293 enum CodecType type)
294{
295 tag[0] = '0';
296 tag[1] = '0' + index;
297 if (type == CODEC_TYPE_VIDEO) {
298 tag[2] = 'd';
299 tag[3] = 'c';
300 } else {
301 tag[2] = 'w';
302 tag[3] = 'b';
303 }
304 tag[4] = '\0';
305 return tag;
306}
307
de6d9b64
FB
308static int avi_write_header(AVFormatContext *s)
309{
c9a65ca8 310 AVIContext *avi = s->priv_data;
de6d9b64 311 ByteIOContext *pb = &s->pb;
86bec9a1 312 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
de6d9b64
FB
313 AVCodecContext *stream, *video_enc;
314 offset_t list1, list2, strh, strf;
315
de6d9b64 316 /* header list */
e738cee9 317 avi->riff_id = 0;
ce9fce63 318 list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
de6d9b64
FB
319
320 /* avi header */
321 put_tag(pb, "avih");
322 put_le32(pb, 14 * 4);
323 bitrate = 0;
324
325 video_enc = NULL;
326 for(n=0;n<s->nb_streams;n++) {
327 stream = &s->streams[n]->codec;
328 bitrate += stream->bit_rate;
329 if (stream->codec_type == CODEC_TYPE_VIDEO)
330 video_enc = stream;
331 }
332
de6d9b64
FB
333 nb_frames = 0;
334
850742d7 335 if(video_enc){
14bea432 336 put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
850742d7
AR
337 } else {
338 put_le32(pb, 0);
339 }
de6d9b64
FB
340 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
341 put_le32(pb, 0); /* padding */
342 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
86bec9a1 343 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
de6d9b64
FB
344 put_le32(pb, nb_frames); /* nb frames, filled later */
345 put_le32(pb, 0); /* initial frame */
346 put_le32(pb, s->nb_streams); /* nb streams */
347 put_le32(pb, 1024 * 1024); /* suggested buffer size */
850742d7 348 if(video_enc){
de6d9b64
FB
349 put_le32(pb, video_enc->width);
350 put_le32(pb, video_enc->height);
850742d7
AR
351 } else {
352 put_le32(pb, 0);
353 put_le32(pb, 0);
354 }
de6d9b64
FB
355 put_le32(pb, 0); /* reserved */
356 put_le32(pb, 0); /* reserved */
357 put_le32(pb, 0); /* reserved */
358 put_le32(pb, 0); /* reserved */
359
360 /* stream list */
361 for(i=0;i<n;i++) {
362 list2 = start_tag(pb, "LIST");
363 put_tag(pb, "strl");
364
365 stream = &s->streams[i]->codec;
366
e8750b00
FR
367 /* FourCC should really be set by the codec itself */
368 if (! stream->codec_tag) {
369 stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
370 }
371
de6d9b64
FB
372 /* stream generic header */
373 strh = start_tag(pb, "strh");
374 switch(stream->codec_type) {
375 case CODEC_TYPE_VIDEO:
376 put_tag(pb, "vids");
e8750b00 377 put_le32(pb, stream->codec_tag);
de6d9b64
FB
378 put_le32(pb, 0); /* flags */
379 put_le16(pb, 0); /* priority */
380 put_le16(pb, 0); /* language */
381 put_le32(pb, 0); /* initial frame */
b559b29b 382
14bea432
MN
383 put_le32(pb, stream->frame_rate_base); /* scale */
384 put_le32(pb, stream->frame_rate); /* rate */
b559b29b 385
de6d9b64 386 put_le32(pb, 0); /* start */
86bec9a1 387 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
de6d9b64
FB
388 put_le32(pb, nb_frames); /* length, XXX: fill later */
389 put_le32(pb, 1024 * 1024); /* suggested buffer size */
86bec9a1 390 put_le32(pb, -1); /* quality */
de6d9b64
FB
391 put_le32(pb, stream->width * stream->height * 3); /* sample size */
392 put_le16(pb, 0);
393 put_le16(pb, 0);
394 put_le16(pb, stream->width);
395 put_le16(pb, stream->height);
396 break;
397 case CODEC_TYPE_AUDIO:
398 put_tag(pb, "auds");
86bec9a1 399 put_le32(pb, 1); /* tag */
de6d9b64
FB
400 put_le32(pb, 0); /* flags */
401 put_le16(pb, 0); /* priority */
402 put_le16(pb, 0); /* language */
403 put_le32(pb, 0); /* initial frame */
86bec9a1
J
404 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
405 put_le32(pb, au_scale); /* scale */
406 put_le32(pb, au_byterate); /* rate */
de6d9b64 407 put_le32(pb, 0); /* start */
86bec9a1 408 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
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FB
409 put_le32(pb, 0); /* length, XXX: filled later */
410 put_le32(pb, 12 * 1024); /* suggested buffer size */
411 put_le32(pb, -1); /* quality */
86bec9a1 412 put_le32(pb, au_ssize); /* sample size */
de6d9b64
FB
413 put_le32(pb, 0);
414 put_le32(pb, 0);
415 break;
53cafac0 416 default:
42343f7e 417 av_abort();
de6d9b64
FB
418 }
419 end_tag(pb, strh);
420
421 strf = start_tag(pb, "strf");
422 switch(stream->codec_type) {
423 case CODEC_TYPE_VIDEO:
2727c35e 424 put_bmp_header(pb, stream, codec_bmp_tags, 0);
de6d9b64
FB
425 break;
426 case CODEC_TYPE_AUDIO:
46a3d068 427 if (put_wav_header(pb, stream) < 0) {
1ea4f593 428 av_free(avi);
46a3d068
FB
429 return -1;
430 }
de6d9b64 431 break;
53cafac0 432 default:
42343f7e 433 av_abort();
de6d9b64
FB
434 }
435 end_tag(pb, strf);
e738cee9
RS
436
437 if (!url_is_streamed(pb)) {
438 unsigned char tag[5];
8c0ff5d5 439 int j;
e738cee9
RS
440
441 /* Starting to lay out AVI OpenDML master index.
442 * We want to make it JUNK entry for now, since we'd
8c0ff5d5 443 * like to get away without making AVI an OpenDML one
e738cee9
RS
444 * for compatibility reasons.
445 */
446 avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
447 avi->indexes[i].indx_start = start_tag(pb, "JUNK");
448 put_le16(pb, 4); /* wLongsPerEntry */
449 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
450 put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
451 put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
452 put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
453 /* dwChunkId */
454 put_le64(pb, 0); /* dwReserved[3]
455 put_le32(pb, 0); Must be 0. */
8c0ff5d5
RS
456 for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
457 put_le64(pb, 0);
e738cee9
RS
458 end_tag(pb, avi->indexes[i].indx_start);
459 }
460
de6d9b64
FB
461 end_tag(pb, list2);
462 }
ce9fce63 463
e738cee9
RS
464 if (!url_is_streamed(pb)) {
465 /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
466 avi->odml_list = start_tag(pb, "JUNK");
467 put_tag(pb, "odml");
468 put_tag(pb, "dmlh");
469 put_le32(pb, 248);
470 for (i = 0; i < 248; i+= 4)
471 put_le32(pb, 0);
472 end_tag(pb, avi->odml_list);
473 }
de6d9b64
FB
474
475 end_tag(pb, list1);
476
477 avi->movi_list = start_tag(pb, "LIST");
de6d9b64
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478 put_tag(pb, "movi");
479
480 put_flush_packet(pb);
481
482 return 0;
483}
484
e738cee9
RS
485static int avi_write_ix(AVFormatContext *s)
486{
487 ByteIOContext *pb = &s->pb;
488 AVIContext *avi = s->priv_data;
489 unsigned char tag[5];
490 unsigned char ix_tag[] = "ix00";
491 int i, j;
492
493 if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
494 return -1;
495
496 for (i=0;i<s->nb_streams;i++) {
497 offset_t ix, pos;
498
499 avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
500 ix_tag[3] = '0' + i;
501
502 /* Writing AVI OpenDML leaf index chunk */
503 ix = url_ftell(pb);
504 put_tag(pb, &ix_tag[0]); /* ix?? */
505 put_le32(pb, avi->indexes[i].entry * 8 + 24);
506 /* chunk size */
507 put_le16(pb, 2); /* wLongsPerEntry */
508 put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
509 put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
510 put_le32(pb, avi->indexes[i].entry);
511 /* nEntriesInUse */
512 put_tag(pb, &tag[0]); /* dwChunkId */
513 put_le64(pb, avi->movi_list);/* qwBaseOffset */
514 put_le32(pb, 0); /* dwReserved_3 (must be 0) */
515
516 for (j=0; j<avi->indexes[i].entry; j++) {
517 AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
518 put_le32(pb, ie->pos + 8);
519 put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
520 (ie->flags & 0x10 ? 0 : 0x80000000));
521 }
522 put_flush_packet(pb);
523 pos = url_ftell(pb);
524
525 /* Updating one entry in the AVI OpenDML master index */
526 url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
527 put_tag(pb, "indx"); /* enabling this entry */
528 url_fskip(pb, 8);
529 put_le32(pb, avi->riff_id); /* nEntriesInUse */
530 url_fskip(pb, 16*avi->riff_id);
531 put_le64(pb, ix); /* qwOffset */
532 put_le32(pb, pos - ix); /* dwSize */
533 put_le32(pb, avi->indexes[i].entry); /* dwDuration */
534
535 url_fseek(pb, pos, SEEK_SET);
536 }
537 return 0;
538}
539
540static int avi_write_idx1(AVFormatContext *s)
ce9fce63
RS
541{
542 ByteIOContext *pb = &s->pb;
543 AVIContext *avi = s->priv_data;
544 offset_t file_size, idx_chunk;
e738cee9 545 int i, n, nb_frames, au_byterate, au_ssize, au_scale;
ce9fce63 546 AVCodecContext *stream;
e738cee9 547 unsigned char tag[5];
ce9fce63
RS
548
549 if (!url_is_streamed(pb)) {
546031ee 550 AVIIentry* ie = 0, *tie;
e738cee9 551 int entry[MAX_STREAMS];
546031ee 552 int empty, stream_id = -1;
e738cee9
RS
553
554 idx_chunk = start_tag(pb, "idx1");
555 memset(&entry[0], 0, sizeof(entry));
556 do {
557 empty = 1;
558 for (i=0; i<s->nb_streams; i++) {
559 if (avi->indexes[i].entry <= entry[i])
560 continue;
561
562 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
563 if (empty || tie->pos < ie->pos) {
564 ie = tie;
565 stream_id = i;
566 }
567 empty = 0;
568 }
569 if (!empty) {
570 avi_stream2fourcc(&tag[0], stream_id,
571 s->streams[stream_id]->codec.codec_type);
572 put_tag(pb, &tag[0]);
573 put_le32(pb, ie->flags);
574 put_le32(pb, ie->pos);
575 put_le32(pb, ie->len);
576 entry[stream_id]++;
577 }
578 } while (!empty);
579 end_tag(pb, idx_chunk);
ce9fce63
RS
580
581 /* Fill in frame/sample counters */
e738cee9 582 file_size = url_ftell(pb);
ce9fce63
RS
583 nb_frames = 0;
584 for(n=0;n<s->nb_streams;n++) {
585 if (avi->frames_hdr_strm[n] != 0) {
586 stream = &s->streams[n]->codec;
587 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
588 if (stream->codec_type == CODEC_TYPE_VIDEO) {
589 put_le32(pb, stream->frame_number);
590 if (nb_frames < stream->frame_number)
591 nb_frames = stream->frame_number;
592 } else {
80783dc2 593 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
ce9fce63
RS
594 put_le32(pb, stream->frame_number);
595 nb_frames += stream->frame_number;
596 } else {
597 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
598 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
599 }
600 }
601 }
602 }
603 if (avi->frames_hdr_all != 0) {
604 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
605 put_le32(pb, nb_frames);
606 }
607 url_fseek(pb, file_size, SEEK_SET);
608 }
609 return 0;
610}
611
e928649b 612static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
de6d9b64
FB
613{
614 AVIContext *avi = s->priv_data;
615 ByteIOContext *pb = &s->pb;
de6d9b64 616 unsigned char tag[5];
e928649b 617 unsigned int flags=0;
de6d9b64 618 AVCodecContext *enc;
e928649b
MN
619 const int stream_index= pkt->stream_index;
620 int size= pkt->size;
ce9fce63
RS
621
622 if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) {
e738cee9
RS
623 avi_write_ix(s);
624 end_tag(pb, avi->movi_list);
625
626 if (avi->riff_id == 1)
627 avi_write_idx1(s);
628
629 end_tag(pb, avi->riff_start);
ce9fce63
RS
630 avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
631 }
de6d9b64
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632
633 enc = &s->streams[stream_index]->codec;
e738cee9 634 avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
e928649b
MN
635 if(pkt->flags&PKT_FLAG_KEY)
636 flags = 0x10;
e738cee9 637 if (enc->codec_type == CODEC_TYPE_AUDIO) {
86bec9a1 638 avi->audio_strm_length[stream_index] += size;
e928649b 639 }
de6d9b64
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640
641 if (!url_is_streamed(&s->pb)) {
e738cee9
RS
642 AVIIndex* idx = &avi->indexes[stream_index];
643 int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
644 int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
645 if (idx->ents_allocated <= idx->entry) {
646 idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
647 if (!idx->cluster)
648 return -1;
649 idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
650 if (!idx->cluster[cl])
651 return -1;
652 idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
653 }
654
655 idx->cluster[cl][id].flags = flags;
656 idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
657 idx->cluster[cl][id].len = size;
658 idx->entry++;
de6d9b64
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659 }
660
661 put_buffer(pb, tag, 4);
662 put_le32(pb, size);
e928649b 663 put_buffer(pb, pkt->data, size);
de6d9b64
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664 if (size & 1)
665 put_byte(pb, 0);
666
667 put_flush_packet(pb);
668 return 0;
669}
670
671static int avi_write_trailer(AVFormatContext *s)
672{
de6d9b64 673 AVIContext *avi = s->priv_data;
ce9fce63
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674 ByteIOContext *pb = &s->pb;
675 int res = 0;
e738cee9
RS
676 int i, j, n, nb_frames;
677 offset_t file_size;
678
679 if (avi->riff_id == 1) {
680 end_tag(pb, avi->movi_list);
681 res = avi_write_idx1(s);
682 end_tag(pb, avi->riff_start);
683 } else {
684 avi_write_ix(s);
685 end_tag(pb, avi->movi_list);
686 end_tag(pb, avi->riff_start);
de6d9b64 687
de6d9b64 688 file_size = url_ftell(pb);
ce9fce63
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689 url_fseek(pb, avi->odml_list - 8, SEEK_SET);
690 put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
691 url_fskip(pb, 16);
692
693 for (n=nb_frames=0;n<s->nb_streams;n++) {
694 AVCodecContext *stream = &s->streams[n]->codec;
695 if (stream->codec_type == CODEC_TYPE_VIDEO) {
696 if (nb_frames < stream->frame_number)
697 nb_frames = stream->frame_number;
698 } else {
80783dc2 699 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
ce9fce63 700 nb_frames += stream->frame_number;
86bec9a1
J
701 }
702 }
ce9fce63
RS
703 }
704 put_le32(pb, nb_frames);
ce9fce63 705 url_fseek(pb, file_size, SEEK_SET);
e738cee9 706 }
de6d9b64 707 put_flush_packet(pb);
e738cee9
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708
709 for (i=0; i<MAX_STREAMS; i++) {
710 for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
711 av_free(avi->indexes[i].cluster[j]);
712 av_free(avi->indexes[i].cluster);
713 avi->indexes[i].cluster = NULL;
714 avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
715 }
716
ce9fce63 717 return res;
de6d9b64
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718}
719
c9a65ca8 720static AVOutputFormat avi_oformat = {
de6d9b64
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721 "avi",
722 "avi format",
723 "video/x-msvideo",
724 "avi",
c9a65ca8 725 sizeof(AVIContext),
de6d9b64 726 CODEC_ID_MP2,
22cf0455 727 CODEC_ID_MPEG4,
de6d9b64
FB
728 avi_write_header,
729 avi_write_packet,
730 avi_write_trailer,
de6d9b64 731};
c9a65ca8
FB
732
733int avienc_init(void)
734{
735 av_register_output_format(&avi_oformat);
736 return 0;
737}
764ef400 738#endif //CONFIG_ENCODERS