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ffmpeg / libavformat / avienc.c @ 4904d6c2

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1
/*
2
 * AVI encoder.
3
 * Copyright (c) 2000 Fabrice Bellard.
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 *
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 * This library is free software; you can redistribute it and/or
6
 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
19
#include "avformat.h"
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#include "avi.h"
21

    
22
/*
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 * TODO: 
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 *  - fill all fields if non streamed (nb_frames for example)
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 */
26

    
27
#ifdef CONFIG_ENCODERS
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typedef struct AVIIentry {
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    unsigned int flags, pos, len;
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} AVIIentry;
31

    
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#define AVI_INDEX_CLUSTER_SIZE 16384
33

    
34
typedef struct AVIIndex {
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    offset_t    indx_start;
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    int         entry;
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    int         ents_allocated;
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    AVIIentry** cluster;
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} AVIIndex;
40

    
41
typedef struct {
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    offset_t riff_start, movi_list, odml_list;
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    offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
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    int audio_strm_length[MAX_STREAMS];
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    int riff_id;
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    int packet_count[MAX_STREAMS];
47

    
48
    AVIIndex indexes[MAX_STREAMS];
49
} AVIContext;
50

    
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static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id) 
52
{
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    int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
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    int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
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    return &idx->cluster[cl][id];
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}
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

    
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    pos = url_ftell(pb);
70
    url_fseek(pb, start - 4, SEEK_SET);
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    put_le32(pb, (uint32_t)(pos - start));
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    url_fseek(pb, pos, SEEK_SET);
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}
74
#endif //CONFIG_ENCODERS
75

    
76
/* Note: when encoding, the first matching tag is used, so order is
77
   important if multiple tags possible for a given codec. */
78
const CodecTag codec_bmp_tags[] = {
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    { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
80

    
81
    { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
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    { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
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    { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
84

    
85
    /* added based on MPlayer */
86
    { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
87
    { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
88

    
89
    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
90
    { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
91
    { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
92
    { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
93
    { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
94
    { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
95

    
96
    /* added based on MPlayer */
97
    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
98
    { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
99
    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
100
    { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
101

    
102
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
103
    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, 
104

    
105
    /* added based on MPlayer */
106
    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') }, 
107
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') }, 
108
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') }, 
109
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') }, 
110
    { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') }, 
111
    { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') }, 
112
    { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') }, 
113

    
114
    { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') }, 
115

    
116
    /* added based on MPlayer */
117
    { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
118
 
119
    { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') }, 
120

    
121
    { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') }, 
122

    
123
    /* added based on MPlayer */
124
    { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') }, 
125
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') }, 
126
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') }, 
127
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') }, 
128
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
129
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') }, 
130
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') }, 
131
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') }, 
132
    { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') }, 
133
    { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') }, 
134
    { CODEC_ID_MPEG1VIDEO, 0x10000001 }, 
135
    { CODEC_ID_MPEG2VIDEO, 0x10000002 }, 
136
    { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
137
    { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
138
    { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
139
    { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
140
    { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
141
    { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
142
    { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
143
    { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
144
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
145
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
146
    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
147
    { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
148
    { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
149
    { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
150
    { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
151
    { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
152
    { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
153
    { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
154
    { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
155
    { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
156
    { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
157
    { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
158
    { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
159
    { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
160
    { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
161
    { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
162
    { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
163
    { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
164
    { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
165
    { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
166
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
167
    { 0, 0 },
168
};
169

    
170
unsigned int codec_get_tag(const CodecTag *tags, int id)
171
{
172
    while (tags->id != 0) {
173
        if (tags->id == id)
174
            return tags->tag;
175
        tags++;
176
    }
177
    return 0;
178
}
179

    
180
static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
181
{
182
    while (tags->id != 0) {
183
        if (!tags->invalid_asf && tags->id == id)
184
            return tags->tag;
185
        tags++;
186
    }
187
    return 0;
188
}
189

    
190
enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
191
{
192
    while (tags->id != 0) {
193
        if(   toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
194
           && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
195
           && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
196
           && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
197
            return tags->id;
198
        tags++;
199
    }
200
    return CODEC_ID_NONE;
201
}
202

    
203
unsigned int codec_get_bmp_tag(int id)
204
{
205
    return codec_get_tag(codec_bmp_tags, id);
206
}
207

    
208
unsigned int codec_get_wav_tag(int id)
209
{
210
    return codec_get_tag(codec_wav_tags, id);
211
}
212

    
213
enum CodecID codec_get_bmp_id(unsigned int tag)
214
{
215
    return codec_get_id(codec_bmp_tags, tag);
216
}
217

    
218
enum CodecID codec_get_wav_id(unsigned int tag)
219
{
220
    return codec_get_id(codec_wav_tags, tag);
221
}
222

    
223
#ifdef CONFIG_ENCODERS
224
/* BITMAPINFOHEADER header */
225
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
226
{
227
    put_le32(pb, 40 + enc->extradata_size); /* size */
228
    put_le32(pb, enc->width);
229
    put_le32(pb, enc->height);
230
    put_le16(pb, 1); /* planes */
231
    
232
    put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
233
    /* compression type */
234
    put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag);
235
    put_le32(pb, enc->width * enc->height * 3);
236
    put_le32(pb, 0);
237
    put_le32(pb, 0);
238
    put_le32(pb, 0);
239
    put_le32(pb, 0);
240
    
241
    put_buffer(pb, enc->extradata, enc->extradata_size);
242

    
243
    if (enc->extradata_size & 1)
244
        put_byte(pb, 0);
245
}
246

    
247
static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
248
{
249
    switch(stream->codec_id) {
250
    case CODEC_ID_PCM_S16LE:
251
       *au_scale = *au_ssize = 2*stream->channels;
252
       *au_byterate = *au_ssize * stream->sample_rate;
253
        break;
254
    case CODEC_ID_PCM_U8:
255
    case CODEC_ID_PCM_ALAW:
256
    case CODEC_ID_PCM_MULAW:
257
        *au_scale = *au_ssize = stream->channels;
258
        *au_byterate = *au_ssize * stream->sample_rate;
259
        break;
260
    case CODEC_ID_MP2:
261
        *au_ssize = 1;
262
        *au_scale = 1;
263
        *au_byterate = stream->bit_rate / 8;
264
    case CODEC_ID_MP3:
265
        *au_ssize = 1;
266
        *au_scale = 1;
267
        *au_byterate = stream->bit_rate / 8;    
268
    default:
269
        *au_ssize = 1;
270
        *au_scale = 1; 
271
        *au_byterate = stream->bit_rate / 8;
272
        break;
273
    }
274
}
275

    
276
static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb, 
277
                                   const char* riff_tag, const char* list_tag)
278
{
279
    offset_t loff;
280
    int i;
281
    
282
    avi->riff_id++;
283
    for (i=0; i<MAX_STREAMS; i++)
284
         avi->indexes[i].entry = 0;
285
    
286
    avi->riff_start = start_tag(pb, "RIFF");
287
    put_tag(pb, riff_tag);
288
    loff = start_tag(pb, "LIST");
289
    put_tag(pb, list_tag);
290
    return loff;
291
}
292

    
293
static unsigned char* avi_stream2fourcc(unsigned char* tag, int index, 
294
                                        enum CodecType type)
295
{
296
    tag[0] = '0';
297
    tag[1] = '0' + index;
298
    if (type == CODEC_TYPE_VIDEO) {
299
        tag[2] = 'd';
300
        tag[3] = 'c';
301
    } else {
302
        tag[2] = 'w';
303
        tag[3] = 'b';
304
    }
305
    tag[4] = '\0';
306
    return tag;
307
}
308

    
309
static int avi_write_header(AVFormatContext *s)
310
{
311
    AVIContext *avi = s->priv_data;
312
    ByteIOContext *pb = &s->pb;
313
    int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
314
    AVCodecContext *stream, *video_enc;
315
    offset_t list1, list2, strh, strf;
316

    
317
    /* header list */
318
    avi->riff_id = 0;
319
    list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
320

    
321
    /* avi header */
322
    put_tag(pb, "avih");
323
    put_le32(pb, 14 * 4);
324
    bitrate = 0;
325

    
326
    video_enc = NULL;
327
    for(n=0;n<s->nb_streams;n++) {
328
        stream = &s->streams[n]->codec;
329
        bitrate += stream->bit_rate;
330
        if (stream->codec_type == CODEC_TYPE_VIDEO)
331
            video_enc = stream;
332
    }
333
    
334
    nb_frames = 0;
335

    
336
    if(video_enc){
337
        put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
338
    } else {
339
        put_le32(pb, 0);
340
    }
341
    put_le32(pb, bitrate / 8); /* XXX: not quite exact */
342
    put_le32(pb, 0); /* padding */
343
    put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
344
    avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
345
    put_le32(pb, nb_frames); /* nb frames, filled later */
346
    put_le32(pb, 0); /* initial frame */
347
    put_le32(pb, s->nb_streams); /* nb streams */
348
    put_le32(pb, 1024 * 1024); /* suggested buffer size */
349
    if(video_enc){    
350
    put_le32(pb, video_enc->width);
351
    put_le32(pb, video_enc->height);
352
    } else {
353
        put_le32(pb, 0);
354
        put_le32(pb, 0);
355
    }        
356
    put_le32(pb, 0); /* reserved */
357
    put_le32(pb, 0); /* reserved */
358
    put_le32(pb, 0); /* reserved */
359
    put_le32(pb, 0); /* reserved */
360
    
361
    /* stream list */
362
    for(i=0;i<n;i++) {
363
        list2 = start_tag(pb, "LIST");
364
        put_tag(pb, "strl");
365
    
366
        stream = &s->streams[i]->codec;
367

    
368
        /* FourCC should really be set by the codec itself */
369
        if (! stream->codec_tag) {
370
            stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
371
        }
372

    
373
        /* stream generic header */
374
        strh = start_tag(pb, "strh");
375
        switch(stream->codec_type) {
376
        case CODEC_TYPE_VIDEO:
377
            put_tag(pb, "vids");
378
            put_le32(pb, stream->codec_tag);
379
            put_le32(pb, 0); /* flags */
380
            put_le16(pb, 0); /* priority */
381
            put_le16(pb, 0); /* language */
382
            put_le32(pb, 0); /* initial frame */
383
            
384
            put_le32(pb, stream->frame_rate_base); /* scale */
385
            put_le32(pb, stream->frame_rate); /* rate */
386
            av_set_pts_info(s->streams[i], 64, stream->frame_rate_base, stream->frame_rate);
387

    
388
            put_le32(pb, 0); /* start */
389
            avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
390
            put_le32(pb, nb_frames); /* length, XXX: fill later */
391
            put_le32(pb, 1024 * 1024); /* suggested buffer size */
392
            put_le32(pb, -1); /* quality */
393
            put_le32(pb, stream->width * stream->height * 3); /* sample size */
394
            put_le16(pb, 0);
395
            put_le16(pb, 0);
396
            put_le16(pb, stream->width);
397
            put_le16(pb, stream->height);
398
            break;
399
        case CODEC_TYPE_AUDIO:
400
            put_tag(pb, "auds");
401
            put_le32(pb, 1); /* tag */
402
            put_le32(pb, 0); /* flags */
403
            put_le16(pb, 0); /* priority */
404
            put_le16(pb, 0); /* language */
405
            put_le32(pb, 0); /* initial frame */
406
            parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
407
            put_le32(pb, au_scale); /* scale */
408
            put_le32(pb, au_byterate); /* rate */
409
//            av_set_pts_info(&s->streams[i], 64, au_scale, au_byterate);
410
            put_le32(pb, 0); /* start */
411
            avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
412
            put_le32(pb, 0); /* length, XXX: filled later */
413
            put_le32(pb, 12 * 1024); /* suggested buffer size */
414
            put_le32(pb, -1); /* quality */
415
            put_le32(pb, au_ssize); /* sample size */
416
            put_le32(pb, 0);
417
            put_le32(pb, 0);
418
            break;
419
        default:
420
            av_abort();
421
        }
422
        end_tag(pb, strh);
423

    
424
        strf = start_tag(pb, "strf");
425
        switch(stream->codec_type) {
426
        case CODEC_TYPE_VIDEO:
427
            put_bmp_header(pb, stream, codec_bmp_tags, 0);
428
            break;
429
        case CODEC_TYPE_AUDIO:
430
            if (put_wav_header(pb, stream) < 0) {
431
                av_free(avi);
432
                return -1;
433
            }
434
            break;
435
        default:
436
            av_abort();
437
        }
438
        end_tag(pb, strf);
439
        
440
        if (!url_is_streamed(pb)) {
441
            unsigned char tag[5];
442
            int j;
443
    
444
            /* Starting to lay out AVI OpenDML master index. 
445
             * We want to make it JUNK entry for now, since we'd
446
             * like to get away without making AVI an OpenDML one 
447
             * for compatibility reasons.
448
             */
449
            avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
450
            avi->indexes[i].indx_start = start_tag(pb, "JUNK"); 
451
            put_le16(pb, 4);        /* wLongsPerEntry */
452
            put_byte(pb, 0);        /* bIndexSubType (0 == frame index) */
453
            put_byte(pb, 0);        /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
454
            put_le32(pb, 0);        /* nEntriesInUse (will fill out later on) */
455
            put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
456
                                    /* dwChunkId */
457
            put_le64(pb, 0);        /* dwReserved[3]
458
            put_le32(pb, 0);           Must be 0.    */
459
            for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
460
                 put_le64(pb, 0);
461
            end_tag(pb, avi->indexes[i].indx_start);
462
        }
463
        
464
        end_tag(pb, list2);
465
    }
466
    
467
    if (!url_is_streamed(pb)) {
468
        /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
469
        avi->odml_list = start_tag(pb, "JUNK");
470
        put_tag(pb, "odml");
471
        put_tag(pb, "dmlh");
472
        put_le32(pb, 248);
473
        for (i = 0; i < 248; i+= 4)
474
             put_le32(pb, 0);
475
        end_tag(pb, avi->odml_list);
476
    }
477

    
478
    end_tag(pb, list1);
479
    
480
    avi->movi_list = start_tag(pb, "LIST");
481
    put_tag(pb, "movi");
482

    
483
    put_flush_packet(pb);
484

    
485
    return 0;
486
}
487

    
488
static int avi_write_ix(AVFormatContext *s)
489
{
490
    ByteIOContext *pb = &s->pb;
491
    AVIContext *avi = s->priv_data;
492
    unsigned char tag[5];
493
    unsigned char ix_tag[] = "ix00";
494
    int i, j;
495
    
496
    if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
497
        return -1;
498
    
499
    for (i=0;i<s->nb_streams;i++) {
500
         offset_t ix, pos;
501
         
502
         avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
503
         ix_tag[3] = '0' + i;
504
         
505
         /* Writing AVI OpenDML leaf index chunk */
506
         ix = url_ftell(pb); 
507
         put_tag(pb, &ix_tag[0]);     /* ix?? */
508
         put_le32(pb, avi->indexes[i].entry * 8 + 24); 
509
                                      /* chunk size */
510
         put_le16(pb, 2);             /* wLongsPerEntry */
511
         put_byte(pb, 0);             /* bIndexSubType (0 == frame index) */ 
512
         put_byte(pb, 1);             /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
513
         put_le32(pb, avi->indexes[i].entry);          
514
                                      /* nEntriesInUse */
515
         put_tag(pb, &tag[0]);        /* dwChunkId */
516
         put_le64(pb, avi->movi_list);/* qwBaseOffset */
517
         put_le32(pb, 0);             /* dwReserved_3 (must be 0) */
518

    
519
         for (j=0; j<avi->indexes[i].entry; j++) {
520
             AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
521
             put_le32(pb, ie->pos + 8);
522
             put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
523
                          (ie->flags & 0x10 ? 0 : 0x80000000));
524
         }
525
         put_flush_packet(pb);
526
         pos = url_ftell(pb);
527
        
528
         /* Updating one entry in the AVI OpenDML master index */
529
         url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
530
         put_tag(pb, "indx");                 /* enabling this entry */
531
         url_fskip(pb, 8);
532
         put_le32(pb, avi->riff_id);          /* nEntriesInUse */
533
         url_fskip(pb, 16*avi->riff_id);
534
         put_le64(pb, ix);                    /* qwOffset */
535
         put_le32(pb, pos - ix);              /* dwSize */
536
         put_le32(pb, avi->indexes[i].entry); /* dwDuration */
537

    
538
         url_fseek(pb, pos, SEEK_SET);
539
    }
540
    return 0;
541
}
542

    
543
static int avi_write_idx1(AVFormatContext *s)
544
{
545
    ByteIOContext *pb = &s->pb;
546
    AVIContext *avi = s->priv_data;
547
    offset_t file_size, idx_chunk;
548
    int i, n, nb_frames, au_byterate, au_ssize, au_scale;
549
    AVCodecContext *stream;
550
    unsigned char tag[5];
551

    
552
    if (!url_is_streamed(pb)) {
553
        AVIIentry* ie = 0, *tie;
554
        int entry[MAX_STREAMS];
555
        int empty, stream_id = -1;
556

    
557
        idx_chunk = start_tag(pb, "idx1");
558
        memset(&entry[0], 0, sizeof(entry));
559
        do {
560
            empty = 1;
561
            for (i=0; i<s->nb_streams; i++) {
562
                 if (avi->indexes[i].entry <= entry[i])
563
                     continue;
564
                 
565
                 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
566
                 if (empty || tie->pos < ie->pos) {
567
                     ie = tie; 
568
                     stream_id = i;
569
                 }
570
                 empty = 0;
571
            }
572
            if (!empty) {
573
                avi_stream2fourcc(&tag[0], stream_id, 
574
                                  s->streams[stream_id]->codec.codec_type); 
575
                put_tag(pb, &tag[0]);
576
                put_le32(pb, ie->flags);
577
                put_le32(pb, ie->pos);
578
                put_le32(pb, ie->len);
579
                entry[stream_id]++;
580
            }
581
        } while (!empty);
582
        end_tag(pb, idx_chunk);
583

    
584
        /* Fill in frame/sample counters */
585
        file_size = url_ftell(pb);
586
        nb_frames = 0;
587
        for(n=0;n<s->nb_streams;n++) {
588
            if (avi->frames_hdr_strm[n] != 0) {
589
                stream = &s->streams[n]->codec;
590
                url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
591
                if (stream->codec_type == CODEC_TYPE_VIDEO) {
592
                    put_le32(pb, stream->frame_number); 
593
                    if (nb_frames < stream->frame_number)
594
                        nb_frames = stream->frame_number;
595
                } else {
596
                    if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
597
                        put_le32(pb, stream->frame_number);
598
                        nb_frames += stream->frame_number;
599
                    } else {
600
                        parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
601
                        put_le32(pb, avi->audio_strm_length[n] / au_ssize);
602
                    }
603
                }
604
            }
605
       }
606
       if (avi->frames_hdr_all != 0) {
607
           url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
608
           put_le32(pb, nb_frames); 
609
       }
610
       url_fseek(pb, file_size, SEEK_SET);
611
    }
612
    return 0;
613
}
614

    
615
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
616
{
617
    AVIContext *avi = s->priv_data;
618
    ByteIOContext *pb = &s->pb;
619
    unsigned char tag[5];
620
    unsigned int flags=0;
621
    const int stream_index= pkt->stream_index;
622
    AVCodecContext *enc= &s->streams[stream_index]->codec;
623
    int size= pkt->size;
624

    
625
//    av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
626
    while(enc->codec_type == CODEC_TYPE_VIDEO && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
627
        AVPacket empty_packet;
628

    
629
        av_init_packet(&empty_packet);
630
        empty_packet.size= 0;
631
        empty_packet.data= NULL;
632
        empty_packet.stream_index= stream_index;
633
        avi_write_packet(s, &empty_packet);
634
//        av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
635
    }
636
    avi->packet_count[stream_index]++;
637

    
638
    if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) { 
639
        avi_write_ix(s);
640
        end_tag(pb, avi->movi_list);
641
        
642
        if (avi->riff_id == 1)
643
            avi_write_idx1(s);
644

    
645
        end_tag(pb, avi->riff_start);
646
        avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
647
    }
648
    
649
    avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
650
    if(pkt->flags&PKT_FLAG_KEY)
651
        flags = 0x10;
652
    if (enc->codec_type == CODEC_TYPE_AUDIO) {
653
       avi->audio_strm_length[stream_index] += size;
654
    }
655

    
656
    if (!url_is_streamed(&s->pb)) {
657
        AVIIndex* idx = &avi->indexes[stream_index];
658
        int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
659
        int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
660
        if (idx->ents_allocated <= idx->entry) {
661
            idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*)); 
662
            if (!idx->cluster)
663
                return -1;
664
            idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
665
            if (!idx->cluster[cl])
666
                return -1;
667
            idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
668
        }
669
         
670
        idx->cluster[cl][id].flags = flags; 
671
        idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
672
        idx->cluster[cl][id].len = size;
673
        idx->entry++;
674
    }
675
    
676
    put_buffer(pb, tag, 4);
677
    put_le32(pb, size);
678
    put_buffer(pb, pkt->data, size);
679
    if (size & 1)
680
        put_byte(pb, 0);
681

    
682
    put_flush_packet(pb);
683
    return 0;
684
}
685

    
686
static int avi_write_trailer(AVFormatContext *s)
687
{
688
    AVIContext *avi = s->priv_data;
689
    ByteIOContext *pb = &s->pb;
690
    int res = 0;
691
    int i, j, n, nb_frames;
692
    offset_t file_size;
693

    
694
    if (avi->riff_id == 1) {
695
        end_tag(pb, avi->movi_list);
696
        res = avi_write_idx1(s);
697
        end_tag(pb, avi->riff_start);
698
    } else {
699
        avi_write_ix(s);
700
        end_tag(pb, avi->movi_list);
701
        end_tag(pb, avi->riff_start);
702

    
703
        file_size = url_ftell(pb);
704
        url_fseek(pb, avi->odml_list - 8, SEEK_SET);
705
        put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
706
        url_fskip(pb, 16);
707

    
708
        for (n=nb_frames=0;n<s->nb_streams;n++) {
709
             AVCodecContext *stream = &s->streams[n]->codec;
710
             if (stream->codec_type == CODEC_TYPE_VIDEO) {
711
                 if (nb_frames < stream->frame_number)
712
                     nb_frames = stream->frame_number;
713
             } else {
714
                 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
715
                     nb_frames += stream->frame_number;
716
                }
717
            }
718
        }
719
        put_le32(pb, nb_frames);
720
        url_fseek(pb, file_size, SEEK_SET);
721
    }
722
    put_flush_packet(pb);
723

    
724
    for (i=0; i<MAX_STREAMS; i++) {
725
         for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
726
              av_free(avi->indexes[i].cluster[j]);
727
         av_free(avi->indexes[i].cluster);
728
         avi->indexes[i].cluster = NULL;
729
         avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
730
    }
731
    
732
    return res;
733
}
734

    
735
static AVOutputFormat avi_oformat = {
736
    "avi",
737
    "avi format",
738
    "video/x-msvideo",
739
    "avi",
740
    sizeof(AVIContext),
741
    CODEC_ID_MP2,
742
    CODEC_ID_MPEG4,
743
    avi_write_header,
744
    avi_write_packet,
745
    avi_write_trailer,
746
};
747

    
748
int avienc_init(void)
749
{
750
    av_register_output_format(&avi_oformat);
751
    return 0;
752
}
753
#endif //CONFIG_ENCODERS