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ffmpeg / libavformat / movenc.c @ a2704c97

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1
/*
2
 * MOV, 3GP, MP4 muxer
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 * Copyright (c) 2003 Thomas Raivio
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 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
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 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
10
 * modify it under the terms of the GNU Lesser General Public
11
 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
23

    
24
#include "movenc.h"
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#include "avformat.h"
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#include "avio_internal.h"
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#include "riff.h"
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#include "avio.h"
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#include "isom.h"
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#include "avc.h"
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#include "libavcodec/get_bits.h"
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#include "libavcodec/put_bits.h"
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#include "internal.h"
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#include "libavutil/avstring.h"
35

    
36
#undef NDEBUG
37
#include <assert.h>
38

    
39
//FIXME support 64 bit variant with wide placeholders
40
static int64_t updateSize(AVIOContext *pb, int64_t pos)
41
{
42
    int64_t curpos = avio_tell(pb);
43
    avio_seek(pb, pos, SEEK_SET);
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    avio_wb32(pb, curpos - pos); /* rewrite size */
45
    avio_seek(pb, curpos, SEEK_SET);
46

    
47
    return curpos - pos;
48
}
49

    
50
/* Chunk offset atom */
51
static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
52
{
53
    int i;
54
    int mode64 = 0; //   use 32 bit size variant if possible
55
    int64_t pos = avio_tell(pb);
56
    avio_wb32(pb, 0); /* size */
57
    if (pos > UINT32_MAX) {
58
        mode64 = 1;
59
        ffio_wfourcc(pb, "co64");
60
    } else
61
        ffio_wfourcc(pb, "stco");
62
    avio_wb32(pb, 0); /* version & flags */
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    avio_wb32(pb, track->entry); /* entry count */
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    for (i=0; i<track->entry; i++) {
65
        if(mode64 == 1)
66
            avio_wb64(pb, track->cluster[i].pos);
67
        else
68
            avio_wb32(pb, track->cluster[i].pos);
69
    }
70
    return updateSize(pb, pos);
71
}
72

    
73
/* Sample size atom */
74
static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
75
{
76
    int equalChunks = 1;
77
    int i, j, entries = 0, tst = -1, oldtst = -1;
78

    
79
    int64_t pos = avio_tell(pb);
80
    avio_wb32(pb, 0); /* size */
81
    ffio_wfourcc(pb, "stsz");
82
    avio_wb32(pb, 0); /* version & flags */
83

    
84
    for (i=0; i<track->entry; i++) {
85
        tst = track->cluster[i].size/track->cluster[i].entries;
86
        if(oldtst != -1 && tst != oldtst) {
87
            equalChunks = 0;
88
        }
89
        oldtst = tst;
90
        entries += track->cluster[i].entries;
91
    }
92
    if (equalChunks) {
93
        int sSize = track->cluster[0].size/track->cluster[0].entries;
94
        avio_wb32(pb, sSize); // sample size
95
        avio_wb32(pb, entries); // sample count
96
    }
97
    else {
98
        avio_wb32(pb, 0); // sample size
99
        avio_wb32(pb, entries); // sample count
100
        for (i=0; i<track->entry; i++) {
101
            for (j=0; j<track->cluster[i].entries; j++) {
102
                avio_wb32(pb, track->cluster[i].size /
103
                         track->cluster[i].entries);
104
            }
105
        }
106
    }
107
    return updateSize(pb, pos);
108
}
109

    
110
/* Sample to chunk atom */
111
static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
112
{
113
    int index = 0, oldval = -1, i;
114
    int64_t entryPos, curpos;
115

    
116
    int64_t pos = avio_tell(pb);
117
    avio_wb32(pb, 0); /* size */
118
    ffio_wfourcc(pb, "stsc");
119
    avio_wb32(pb, 0); // version & flags
120
    entryPos = avio_tell(pb);
121
    avio_wb32(pb, track->entry); // entry count
122
    for (i=0; i<track->entry; i++) {
123
        if(oldval != track->cluster[i].samplesInChunk)
124
        {
125
            avio_wb32(pb, i+1); // first chunk
126
            avio_wb32(pb, track->cluster[i].samplesInChunk); // samples per chunk
127
            avio_wb32(pb, 0x1); // sample description index
128
            oldval = track->cluster[i].samplesInChunk;
129
            index++;
130
        }
131
    }
132
    curpos = avio_tell(pb);
133
    avio_seek(pb, entryPos, SEEK_SET);
134
    avio_wb32(pb, index); // rewrite size
135
    avio_seek(pb, curpos, SEEK_SET);
136

    
137
    return updateSize(pb, pos);
138
}
139

    
140
/* Sync sample atom */
141
static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
142
{
143
    int64_t curpos, entryPos;
144
    int i, index = 0;
145
    int64_t pos = avio_tell(pb);
146
    avio_wb32(pb, 0); // size
147
    ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
148
    avio_wb32(pb, 0); // version & flags
149
    entryPos = avio_tell(pb);
150
    avio_wb32(pb, track->entry); // entry count
151
    for (i=0; i<track->entry; i++) {
152
        if (track->cluster[i].flags & flag) {
153
            avio_wb32(pb, i+1);
154
            index++;
155
        }
156
    }
157
    curpos = avio_tell(pb);
158
    avio_seek(pb, entryPos, SEEK_SET);
159
    avio_wb32(pb, index); // rewrite size
160
    avio_seek(pb, curpos, SEEK_SET);
161
    return updateSize(pb, pos);
162
}
163

    
164
static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
165
{
166
    avio_wb32(pb, 0x11); /* size */
167
    if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
168
    else                         ffio_wfourcc(pb, "damr");
169
    ffio_wfourcc(pb, "FFMP");
170
    avio_w8(pb, 0); /* decoder version */
171

    
172
    avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
173
    avio_w8(pb, 0x00); /* Mode change period (no restriction) */
174
    avio_w8(pb, 0x01); /* Frames per sample */
175
    return 0x11;
176
}
177

    
178
static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
179
{
180
    GetBitContext gbc;
181
    PutBitContext pbc;
182
    uint8_t buf[3];
183
    int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
184

    
185
    if (track->vosLen < 7)
186
        return -1;
187

    
188
    avio_wb32(pb, 11);
189
    ffio_wfourcc(pb, "dac3");
190

    
191
    init_get_bits(&gbc, track->vosData+4, track->vosLen-4);
192
    fscod      = get_bits(&gbc, 2);
193
    frmsizecod = get_bits(&gbc, 6);
194
    bsid       = get_bits(&gbc, 5);
195
    bsmod      = get_bits(&gbc, 3);
196
    acmod      = get_bits(&gbc, 3);
197
    if (acmod == 2) {
198
        skip_bits(&gbc, 2); // dsurmod
199
    } else {
200
        if ((acmod & 1) && acmod != 1)
201
            skip_bits(&gbc, 2); // cmixlev
202
        if (acmod & 4)
203
            skip_bits(&gbc, 2); // surmixlev
204
    }
205
    lfeon = get_bits1(&gbc);
206

    
207
    init_put_bits(&pbc, buf, sizeof(buf));
208
    put_bits(&pbc, 2, fscod);
209
    put_bits(&pbc, 5, bsid);
210
    put_bits(&pbc, 3, bsmod);
211
    put_bits(&pbc, 3, acmod);
212
    put_bits(&pbc, 1, lfeon);
213
    put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code
214
    put_bits(&pbc, 5, 0); // reserved
215

    
216
    flush_put_bits(&pbc);
217
    avio_write(pb, buf, sizeof(buf));
218

    
219
    return 11;
220
}
221

    
222
/**
223
 * This function writes extradata "as is".
224
 * Extradata must be formated like a valid atom (with size and tag)
225
 */
226
static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
227
{
228
    avio_write(pb, track->enc->extradata, track->enc->extradata_size);
229
    return track->enc->extradata_size;
230
}
231

    
232
static int mov_write_enda_tag(AVIOContext *pb)
233
{
234
    avio_wb32(pb, 10);
235
    ffio_wfourcc(pb, "enda");
236
    avio_wb16(pb, 1); /* little endian */
237
    return 10;
238
}
239

    
240
static unsigned int descrLength(unsigned int len)
241
{
242
    int i;
243
    for(i=1; len>>(7*i); i++);
244
    return len + 1 + i;
245
}
246

    
247
static void putDescr(AVIOContext *pb, int tag, unsigned int size)
248
{
249
    int i= descrLength(size) - size - 2;
250
    avio_w8(pb, tag);
251
    for(; i>0; i--)
252
        avio_w8(pb, (size>>(7*i)) | 0x80);
253
    avio_w8(pb, size & 0x7F);
254
}
255

    
256
static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
257
{
258
    int64_t pos = avio_tell(pb);
259
    int decoderSpecificInfoLen = track->vosLen ? descrLength(track->vosLen):0;
260

    
261
    avio_wb32(pb, 0); // size
262
    ffio_wfourcc(pb, "esds");
263
    avio_wb32(pb, 0); // Version
264

    
265
    // ES descriptor
266
    putDescr(pb, 0x03, 3 + descrLength(13 + decoderSpecificInfoLen) +
267
             descrLength(1));
268
    avio_wb16(pb, track->trackID);
269
    avio_w8(pb, 0x00); // flags (= no flags)
270

    
271
    // DecoderConfig descriptor
272
    putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);
273

    
274
    // Object type indication
275
    if ((track->enc->codec_id == CODEC_ID_MP2 ||
276
         track->enc->codec_id == CODEC_ID_MP3) &&
277
        track->enc->sample_rate > 24000)
278
        avio_w8(pb, 0x6B); // 11172-3
279
    else
280
        avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
281

    
282
    // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
283
    // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
284
    if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
285
        avio_w8(pb, 0x15); // flags (= Audiostream)
286
    else
287
        avio_w8(pb, 0x11); // flags (= Visualstream)
288

    
289
    avio_w8(pb,  track->enc->rc_buffer_size>>(3+16));      // Buffersize DB (24 bits)
290
    avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB
291

    
292
    avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
293
    if(track->enc->rc_max_rate != track->enc->rc_min_rate || track->enc->rc_min_rate==0)
294
        avio_wb32(pb, 0); // vbr
295
    else
296
        avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
297

    
298
    if (track->vosLen) {
299
        // DecoderSpecific info descriptor
300
        putDescr(pb, 0x05, track->vosLen);
301
        avio_write(pb, track->vosData, track->vosLen);
302
    }
303

    
304
    // SL descriptor
305
    putDescr(pb, 0x06, 1);
306
    avio_w8(pb, 0x02);
307
    return updateSize(pb, pos);
308
}
309

    
310
static int mov_pcm_le_gt16(enum CodecID codec_id)
311
{
312
    return codec_id == CODEC_ID_PCM_S24LE ||
313
           codec_id == CODEC_ID_PCM_S32LE ||
314
           codec_id == CODEC_ID_PCM_F32LE ||
315
           codec_id == CODEC_ID_PCM_F64LE;
316
}
317

    
318
static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
319
{
320
    int64_t pos = avio_tell(pb);
321
    avio_wb32(pb, 0);
322
    avio_wl32(pb, track->tag); // store it byteswapped
323
    track->enc->codec_tag = av_bswap16(track->tag >> 16);
324
    ff_put_wav_header(pb, track->enc);
325
    return updateSize(pb, pos);
326
}
327

    
328
static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
329
{
330
    int64_t pos = avio_tell(pb);
331

    
332
    avio_wb32(pb, 0);     /* size */
333
    ffio_wfourcc(pb, "wave");
334

    
335
    avio_wb32(pb, 12);    /* size */
336
    ffio_wfourcc(pb, "frma");
337
    avio_wl32(pb, track->tag);
338

    
339
    if (track->enc->codec_id == CODEC_ID_AAC) {
340
        /* useless atom needed by mplayer, ipod, not needed by quicktime */
341
        avio_wb32(pb, 12); /* size */
342
        ffio_wfourcc(pb, "mp4a");
343
        avio_wb32(pb, 0);
344
        mov_write_esds_tag(pb, track);
345
    } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
346
        mov_write_enda_tag(pb);
347
    } else if (track->enc->codec_id == CODEC_ID_AMR_NB) {
348
        mov_write_amr_tag(pb, track);
349
    } else if (track->enc->codec_id == CODEC_ID_AC3) {
350
        mov_write_ac3_tag(pb, track);
351
    } else if (track->enc->codec_id == CODEC_ID_ALAC) {
352
        mov_write_extradata_tag(pb, track);
353
    } else if (track->enc->codec_id == CODEC_ID_ADPCM_MS ||
354
               track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
355
        mov_write_ms_tag(pb, track);
356
    }
357

    
358
    avio_wb32(pb, 8);     /* size */
359
    avio_wb32(pb, 0);     /* null tag */
360

    
361
    return updateSize(pb, pos);
362
}
363

    
364
static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
365
{
366
    avio_wb32(pb, track->vosLen+8);
367
    ffio_wfourcc(pb, "glbl");
368
    avio_write(pb, track->vosData, track->vosLen);
369
    return 8+track->vosLen;
370
}
371

    
372
/**
373
 * Compute flags for 'lpcm' tag.
374
 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
375
 */
376
static int mov_get_lpcm_flags(enum CodecID codec_id)
377
{
378
    switch (codec_id) {
379
    case CODEC_ID_PCM_F32BE:
380
    case CODEC_ID_PCM_F64BE:
381
        return 11;
382
    case CODEC_ID_PCM_F32LE:
383
    case CODEC_ID_PCM_F64LE:
384
        return 9;
385
    case CODEC_ID_PCM_U8:
386
        return 10;
387
    case CODEC_ID_PCM_S16BE:
388
    case CODEC_ID_PCM_S24BE:
389
    case CODEC_ID_PCM_S32BE:
390
        return 14;
391
    case CODEC_ID_PCM_S8:
392
    case CODEC_ID_PCM_S16LE:
393
    case CODEC_ID_PCM_S24LE:
394
    case CODEC_ID_PCM_S32LE:
395
        return 12;
396
    default:
397
        return 0;
398
    }
399
}
400

    
401
static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
402
{
403
    int64_t pos = avio_tell(pb);
404
    int version = 0;
405
    uint32_t tag = track->tag;
406

    
407
    if (track->mode == MODE_MOV) {
408
        if (track->timescale > UINT16_MAX) {
409
            if (mov_get_lpcm_flags(track->enc->codec_id))
410
                tag = AV_RL32("lpcm");
411
            version = 2;
412
        } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
413
                   track->enc->codec_id == CODEC_ID_ADPCM_MS ||
414
                   track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
415
            version = 1;
416
        }
417
    }
418

    
419
    avio_wb32(pb, 0); /* size */
420
    avio_wl32(pb, tag); // store it byteswapped
421
    avio_wb32(pb, 0); /* Reserved */
422
    avio_wb16(pb, 0); /* Reserved */
423
    avio_wb16(pb, 1); /* Data-reference index, XXX  == 1 */
424

    
425
    /* SoundDescription */
426
    avio_wb16(pb, version); /* Version */
427
    avio_wb16(pb, 0); /* Revision level */
428
    avio_wb32(pb, 0); /* Reserved */
429

    
430
    if (version == 2) {
431
        avio_wb16(pb, 3);
432
        avio_wb16(pb, 16);
433
        avio_wb16(pb, 0xfffe);
434
        avio_wb16(pb, 0);
435
        avio_wb32(pb, 0x00010000);
436
        avio_wb32(pb, 72);
437
        avio_wb64(pb, av_dbl2int(track->timescale));
438
        avio_wb32(pb, track->enc->channels);
439
        avio_wb32(pb, 0x7F000000);
440
        avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
441
        avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
442
        avio_wb32(pb, track->sampleSize);
443
        avio_wb32(pb, track->enc->frame_size);
444
    } else {
445
        if (track->mode == MODE_MOV) {
446
            avio_wb16(pb, track->enc->channels);
447
            if (track->enc->codec_id == CODEC_ID_PCM_U8 ||
448
                track->enc->codec_id == CODEC_ID_PCM_S8)
449
                avio_wb16(pb, 8); /* bits per sample */
450
            else
451
                avio_wb16(pb, 16);
452
            avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
453
        } else { /* reserved for mp4/3gp */
454
            avio_wb16(pb, 2);
455
            avio_wb16(pb, 16);
456
            avio_wb16(pb, 0);
457
        }
458

    
459
        avio_wb16(pb, 0); /* packet size (= 0) */
460
        avio_wb16(pb, track->timescale); /* Time scale */
461
        avio_wb16(pb, 0); /* Reserved */
462
    }
463

    
464
    if(version == 1) { /* SoundDescription V1 extended info */
465
        avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
466
        avio_wb32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */
467
        avio_wb32(pb, track->sampleSize); /* Bytes per frame */
468
        avio_wb32(pb, 2); /* Bytes per sample */
469
    }
470

    
471
    if(track->mode == MODE_MOV &&
472
       (track->enc->codec_id == CODEC_ID_AAC ||
473
        track->enc->codec_id == CODEC_ID_AC3 ||
474
        track->enc->codec_id == CODEC_ID_AMR_NB ||
475
        track->enc->codec_id == CODEC_ID_ALAC ||
476
        track->enc->codec_id == CODEC_ID_ADPCM_MS ||
477
        track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV ||
478
        mov_pcm_le_gt16(track->enc->codec_id)))
479
        mov_write_wave_tag(pb, track);
480
    else if(track->tag == MKTAG('m','p','4','a'))
481
        mov_write_esds_tag(pb, track);
482
    else if(track->enc->codec_id == CODEC_ID_AMR_NB)
483
        mov_write_amr_tag(pb, track);
484
    else if(track->enc->codec_id == CODEC_ID_AC3)
485
        mov_write_ac3_tag(pb, track);
486
    else if(track->enc->codec_id == CODEC_ID_ALAC)
487
        mov_write_extradata_tag(pb, track);
488
    else if(track->vosLen > 0)
489
        mov_write_glbl_tag(pb, track);
490

    
491
    return updateSize(pb, pos);
492
}
493

    
494
static int mov_write_d263_tag(AVIOContext *pb)
495
{
496
    avio_wb32(pb, 0xf); /* size */
497
    ffio_wfourcc(pb, "d263");
498
    ffio_wfourcc(pb, "FFMP");
499
    avio_w8(pb, 0); /* decoder version */
500
    /* FIXME use AVCodecContext level/profile, when encoder will set values */
501
    avio_w8(pb, 0xa); /* level */
502
    avio_w8(pb, 0); /* profile */
503
    return 0xf;
504
}
505

    
506
/* TODO: No idea about these values */
507
static int mov_write_svq3_tag(AVIOContext *pb)
508
{
509
    avio_wb32(pb, 0x15);
510
    ffio_wfourcc(pb, "SMI ");
511
    ffio_wfourcc(pb, "SEQH");
512
    avio_wb32(pb, 0x5);
513
    avio_wb32(pb, 0xe2c0211d);
514
    avio_wb32(pb, 0xc0000000);
515
    avio_w8(pb, 0);
516
    return 0x15;
517
}
518

    
519
static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
520
{
521
    int64_t pos = avio_tell(pb);
522

    
523
    avio_wb32(pb, 0);
524
    ffio_wfourcc(pb, "avcC");
525
    ff_isom_write_avcc(pb, track->vosData, track->vosLen);
526
    return updateSize(pb, pos);
527
}
528

    
529
/* also used by all avid codecs (dv, imx, meridien) and their variants */
530
static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
531
{
532
    int i;
533
    avio_wb32(pb, 24); /* size */
534
    ffio_wfourcc(pb, "ACLR");
535
    ffio_wfourcc(pb, "ACLR");
536
    ffio_wfourcc(pb, "0001");
537
    avio_wb32(pb, 1); /* yuv 1 / rgb 2 ? */
538
    avio_wb32(pb, 0); /* unknown */
539

    
540
    avio_wb32(pb, 24); /* size */
541
    ffio_wfourcc(pb, "APRG");
542
    ffio_wfourcc(pb, "APRG");
543
    ffio_wfourcc(pb, "0001");
544
    avio_wb32(pb, 1); /* unknown */
545
    avio_wb32(pb, 0); /* unknown */
546

    
547
    avio_wb32(pb, 120); /* size */
548
    ffio_wfourcc(pb, "ARES");
549
    ffio_wfourcc(pb, "ARES");
550
    ffio_wfourcc(pb, "0001");
551
    avio_wb32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */
552
    avio_wb32(pb, track->enc->width);
553
    /* values below are based on samples created with quicktime and avid codecs */
554
    if (track->vosData[5] & 2) { // interlaced
555
        avio_wb32(pb, track->enc->height/2);
556
        avio_wb32(pb, 2); /* unknown */
557
        avio_wb32(pb, 0); /* unknown */
558
        avio_wb32(pb, 4); /* unknown */
559
    } else {
560
        avio_wb32(pb, track->enc->height);
561
        avio_wb32(pb, 1); /* unknown */
562
        avio_wb32(pb, 0); /* unknown */
563
        if (track->enc->height == 1080)
564
            avio_wb32(pb, 5); /* unknown */
565
        else
566
            avio_wb32(pb, 6); /* unknown */
567
    }
568
    /* padding */
569
    for (i = 0; i < 10; i++)
570
        avio_wb64(pb, 0);
571

    
572
    /* extra padding for stsd needed */
573
    avio_wb32(pb, 0);
574
    return 0;
575
}
576

    
577
static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
578
{
579
    int tag = track->enc->codec_tag;
580

    
581
    if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
582
        return 0;
583

    
584
    if      (track->enc->codec_id == CODEC_ID_H264)      tag = MKTAG('a','v','c','1');
585
    else if (track->enc->codec_id == CODEC_ID_AC3)       tag = MKTAG('a','c','-','3');
586
    else if (track->enc->codec_id == CODEC_ID_DIRAC)     tag = MKTAG('d','r','a','c');
587
    else if (track->enc->codec_id == CODEC_ID_MOV_TEXT)  tag = MKTAG('t','x','3','g');
588
    else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
589
    else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
590

    
591
    return tag;
592
}
593

    
594
static const AVCodecTag codec_ipod_tags[] = {
595
    { CODEC_ID_H264,   MKTAG('a','v','c','1') },
596
    { CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },
597
    { CODEC_ID_AAC,    MKTAG('m','p','4','a') },
598
    { CODEC_ID_ALAC,   MKTAG('a','l','a','c') },
599
    { CODEC_ID_AC3,    MKTAG('a','c','-','3') },
600
    { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
601
    { CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
602
    { CODEC_ID_NONE, 0 },
603
};
604

    
605
static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
606
{
607
    int tag = track->enc->codec_tag;
608

    
609
    // keep original tag for subs, ipod supports both formats
610
    if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
611
        (tag == MKTAG('t','x','3','g') ||
612
         tag == MKTAG('t','e','x','t'))))
613
        tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
614

    
615
    if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
616
        av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
617
               "Quicktime/Ipod might not play the file\n");
618

    
619
    return tag;
620
}
621

    
622
static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
623
{
624
    int tag;
625

    
626
    if (track->enc->width == 720) /* SD */
627
        if (track->enc->height == 480) /* NTSC */
628
            if  (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
629
            else                                         tag = MKTAG('d','v','c',' ');
630
        else if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
631
        else if (track->enc->pix_fmt == PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
632
        else                                             tag = MKTAG('d','v','p','p');
633
    else if (track->enc->height == 720) /* HD 720 line */
634
        if  (track->enc->time_base.den == 50)            tag = MKTAG('d','v','h','q');
635
        else                                             tag = MKTAG('d','v','h','p');
636
    else if (track->enc->height == 1080) /* HD 1080 line */
637
        if  (track->enc->time_base.den == 25)            tag = MKTAG('d','v','h','5');
638
        else                                             tag = MKTAG('d','v','h','6');
639
    else {
640
        av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
641
        return 0;
642
    }
643

    
644
    return tag;
645
}
646

    
647
static const struct {
648
    enum PixelFormat pix_fmt;
649
    uint32_t tag;
650
    unsigned bps;
651
} mov_pix_fmt_tags[] = {
652
    { PIX_FMT_YUYV422, MKTAG('y','u','v','s'),  0 },
653
    { PIX_FMT_UYVY422, MKTAG('2','v','u','y'),  0 },
654
    { PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
655
    { PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
656
    { PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
657
    { PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
658
    { PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
659
    { PIX_FMT_RGB24,   MKTAG('r','a','w',' '), 24 },
660
    { PIX_FMT_BGR24,   MKTAG('2','4','B','G'), 24 },
661
    { PIX_FMT_ARGB,    MKTAG('r','a','w',' '), 32 },
662
    { PIX_FMT_BGRA,    MKTAG('B','G','R','A'), 32 },
663
    { PIX_FMT_RGBA,    MKTAG('R','G','B','A'), 32 },
664
    { PIX_FMT_ABGR,    MKTAG('A','B','G','R'), 32 },
665
    { PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
666
};
667

    
668
static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
669
{
670
    int tag = track->enc->codec_tag;
671
    int i;
672

    
673
    for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
674
        if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
675
            tag = mov_pix_fmt_tags[i].tag;
676
            track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
677
            break;
678
        }
679
    }
680

    
681
    return tag;
682
}
683

    
684
static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
685
{
686
    int tag = track->enc->codec_tag;
687

    
688
    if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
689
                 (track->enc->codec_id == CODEC_ID_DVVIDEO ||
690
                  track->enc->codec_id == CODEC_ID_RAWVIDEO ||
691
                  track->enc->codec_id == CODEC_ID_H263 ||
692
                  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
693
        if (track->enc->codec_id == CODEC_ID_DVVIDEO)
694
            tag = mov_get_dv_codec_tag(s, track);
695
        else if (track->enc->codec_id == CODEC_ID_RAWVIDEO)
696
            tag = mov_get_rawvideo_codec_tag(s, track);
697
        else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
698
            tag = ff_codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
699
            if (!tag) { // if no mac fcc found, try with Microsoft tags
700
                tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
701
                if (tag)
702
                    av_log(s, AV_LOG_INFO, "Warning, using MS style video codec tag, "
703
                           "the file may be unplayable!\n");
704
            }
705
        } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
706
            tag = ff_codec_get_tag(codec_movaudio_tags, track->enc->codec_id);
707
            if (!tag) { // if no mac fcc found, try with Microsoft tags
708
                int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
709
                if (ms_tag) {
710
                    tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
711
                    av_log(s, AV_LOG_INFO, "Warning, using MS style audio codec tag, "
712
                           "the file may be unplayable!\n");
713
                }
714
            }
715
        } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
716
            tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
717
    }
718

    
719
    return tag;
720
}
721

    
722
static const AVCodecTag codec_3gp_tags[] = {
723
    { CODEC_ID_H263,   MKTAG('s','2','6','3') },
724
    { CODEC_ID_H264,   MKTAG('a','v','c','1') },
725
    { CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },
726
    { CODEC_ID_AAC,    MKTAG('m','p','4','a') },
727
    { CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
728
    { CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
729
    { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
730
    { CODEC_ID_NONE, 0 },
731
};
732

    
733
static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
734
{
735
    int tag = track->enc->codec_tag;
736

    
737
    if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
738
        tag = mp4_get_codec_tag(s, track);
739
    else if (track->mode == MODE_IPOD)
740
        tag = ipod_get_codec_tag(s, track);
741
    else if (track->mode & MODE_3GP)
742
        tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
743
    else
744
        tag = mov_get_codec_tag(s, track);
745

    
746
    return tag;
747
}
748

    
749
/** Write uuid atom.
750
 * Needed to make file play in iPods running newest firmware
751
 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
752
 */
753
static int mov_write_uuid_tag_ipod(AVIOContext *pb)
754
{
755
    avio_wb32(pb, 28);
756
    ffio_wfourcc(pb, "uuid");
757
    avio_wb32(pb, 0x6b6840f2);
758
    avio_wb32(pb, 0x5f244fc5);
759
    avio_wb32(pb, 0xba39a51b);
760
    avio_wb32(pb, 0xcf0323f3);
761
    avio_wb32(pb, 0x0);
762
    return 28;
763
}
764

    
765
static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
766
{
767
    int64_t pos = avio_tell(pb);
768
    avio_wb32(pb, 0);    /* size */
769
    avio_wl32(pb, track->tag); // store it byteswapped
770
    avio_wb32(pb, 0);    /* Reserved */
771
    avio_wb16(pb, 0);    /* Reserved */
772
    avio_wb16(pb, 1);    /* Data-reference index */
773

    
774
    if (track->enc->extradata_size)
775
        avio_write(pb, track->enc->extradata, track->enc->extradata_size);
776

    
777
    return updateSize(pb, pos);
778
}
779

    
780
static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
781
{
782
    AVRational sar;
783
    av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
784
              track->enc->sample_aspect_ratio.den, INT_MAX);
785

    
786
    avio_wb32(pb, 16);
787
    ffio_wfourcc(pb, "pasp");
788
    avio_wb32(pb, sar.num);
789
    avio_wb32(pb, sar.den);
790
    return 16;
791
}
792

    
793
static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
794
{
795
    int64_t pos = avio_tell(pb);
796
    char compressor_name[32];
797

    
798
    avio_wb32(pb, 0); /* size */
799
    avio_wl32(pb, track->tag); // store it byteswapped
800
    avio_wb32(pb, 0); /* Reserved */
801
    avio_wb16(pb, 0); /* Reserved */
802
    avio_wb16(pb, 1); /* Data-reference index */
803

    
804
    avio_wb16(pb, 0); /* Codec stream version */
805
    avio_wb16(pb, 0); /* Codec stream revision (=0) */
806
    if (track->mode == MODE_MOV) {
807
        ffio_wfourcc(pb, "FFMP"); /* Vendor */
808
        if(track->enc->codec_id == CODEC_ID_RAWVIDEO) {
809
            avio_wb32(pb, 0); /* Temporal Quality */
810
            avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
811
        } else {
812
            avio_wb32(pb, 0x200); /* Temporal Quality = normal */
813
            avio_wb32(pb, 0x200); /* Spatial Quality = normal */
814
        }
815
    } else {
816
        avio_wb32(pb, 0); /* Reserved */
817
        avio_wb32(pb, 0); /* Reserved */
818
        avio_wb32(pb, 0); /* Reserved */
819
    }
820
    avio_wb16(pb, track->enc->width); /* Video width */
821
    avio_wb16(pb, track->height); /* Video height */
822
    avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
823
    avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
824
    avio_wb32(pb, 0); /* Data size (= 0) */
825
    avio_wb16(pb, 1); /* Frame count (= 1) */
826

    
827
    memset(compressor_name,0,32);
828
    /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
829
    if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
830
        strncpy(compressor_name,track->enc->codec->name,31);
831
    avio_w8(pb, strlen(compressor_name));
832
    avio_write(pb, compressor_name, 31);
833

    
834
    if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
835
        avio_wb16(pb, track->enc->bits_per_coded_sample);
836
    else
837
        avio_wb16(pb, 0x18); /* Reserved */
838
    avio_wb16(pb, 0xffff); /* Reserved */
839
    if(track->tag == MKTAG('m','p','4','v'))
840
        mov_write_esds_tag(pb, track);
841
    else if(track->enc->codec_id == CODEC_ID_H263)
842
        mov_write_d263_tag(pb);
843
    else if(track->enc->codec_id == CODEC_ID_SVQ3)
844
        mov_write_svq3_tag(pb);
845
    else if(track->enc->codec_id == CODEC_ID_DNXHD)
846
        mov_write_avid_tag(pb, track);
847
    else if(track->enc->codec_id == CODEC_ID_H264) {
848
        mov_write_avcc_tag(pb, track);
849
        if(track->mode == MODE_IPOD)
850
            mov_write_uuid_tag_ipod(pb);
851
    } else if(track->vosLen > 0)
852
        mov_write_glbl_tag(pb, track);
853

    
854
    if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
855
        track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
856
        mov_write_pasp_tag(pb, track);
857
    }
858

    
859
    return updateSize(pb, pos);
860
}
861

    
862
static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
863
{
864
    int64_t pos = avio_tell(pb);
865
    avio_wb32(pb, 0); /* size */
866
    ffio_wfourcc(pb, "rtp ");
867
    avio_wb32(pb, 0); /* Reserved */
868
    avio_wb16(pb, 0); /* Reserved */
869
    avio_wb16(pb, 1); /* Data-reference index */
870

    
871
    avio_wb16(pb, 1); /* Hint track version */
872
    avio_wb16(pb, 1); /* Highest compatible version */
873
    avio_wb32(pb, track->max_packet_size); /* Max packet size */
874

    
875
    avio_wb32(pb, 12); /* size */
876
    ffio_wfourcc(pb, "tims");
877
    avio_wb32(pb, track->timescale);
878

    
879
    return updateSize(pb, pos);
880
}
881

    
882
static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
883
{
884
    int64_t pos = avio_tell(pb);
885
    avio_wb32(pb, 0); /* size */
886
    ffio_wfourcc(pb, "stsd");
887
    avio_wb32(pb, 0); /* version & flags */
888
    avio_wb32(pb, 1); /* entry count */
889
    if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
890
        mov_write_video_tag(pb, track);
891
    else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
892
        mov_write_audio_tag(pb, track);
893
    else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
894
        mov_write_subtitle_tag(pb, track);
895
    else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
896
        mov_write_rtp_tag(pb, track);
897
    return updateSize(pb, pos);
898
}
899

    
900
static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
901
{
902
    MOVStts *ctts_entries;
903
    uint32_t entries = 0;
904
    uint32_t atom_size;
905
    int i;
906

    
907
    ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
908
    ctts_entries[0].count = 1;
909
    ctts_entries[0].duration = track->cluster[0].cts;
910
    for (i=1; i<track->entry; i++) {
911
        if (track->cluster[i].cts == ctts_entries[entries].duration) {
912
            ctts_entries[entries].count++; /* compress */
913
        } else {
914
            entries++;
915
            ctts_entries[entries].duration = track->cluster[i].cts;
916
            ctts_entries[entries].count = 1;
917
        }
918
    }
919
    entries++; /* last one */
920
    atom_size = 16 + (entries * 8);
921
    avio_wb32(pb, atom_size); /* size */
922
    ffio_wfourcc(pb, "ctts");
923
    avio_wb32(pb, 0); /* version & flags */
924
    avio_wb32(pb, entries); /* entry count */
925
    for (i=0; i<entries; i++) {
926
        avio_wb32(pb, ctts_entries[i].count);
927
        avio_wb32(pb, ctts_entries[i].duration);
928
    }
929
    av_free(ctts_entries);
930
    return atom_size;
931
}
932

    
933
/* Time to sample atom */
934
static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
935
{
936
    MOVStts *stts_entries;
937
    uint32_t entries = -1;
938
    uint32_t atom_size;
939
    int i;
940

    
941
    if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
942
        stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
943
        stts_entries[0].count = track->sampleCount;
944
        stts_entries[0].duration = 1;
945
        entries = 1;
946
    } else {
947
        stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
948
        for (i=0; i<track->entry; i++) {
949
            int64_t duration = i + 1 == track->entry ?
950
                track->trackDuration - track->cluster[i].dts + track->cluster[0].dts : /* readjusting */
951
                track->cluster[i+1].dts - track->cluster[i].dts;
952
            if (i && duration == stts_entries[entries].duration) {
953
                stts_entries[entries].count++; /* compress */
954
            } else {
955
                entries++;
956
                stts_entries[entries].duration = duration;
957
                stts_entries[entries].count = 1;
958
            }
959
        }
960
        entries++; /* last one */
961
    }
962
    atom_size = 16 + (entries * 8);
963
    avio_wb32(pb, atom_size); /* size */
964
    ffio_wfourcc(pb, "stts");
965
    avio_wb32(pb, 0); /* version & flags */
966
    avio_wb32(pb, entries); /* entry count */
967
    for (i=0; i<entries; i++) {
968
        avio_wb32(pb, stts_entries[i].count);
969
        avio_wb32(pb, stts_entries[i].duration);
970
    }
971
    av_free(stts_entries);
972
    return atom_size;
973
}
974

    
975
static int mov_write_dref_tag(AVIOContext *pb)
976
{
977
    avio_wb32(pb, 28); /* size */
978
    ffio_wfourcc(pb, "dref");
979
    avio_wb32(pb, 0); /* version & flags */
980
    avio_wb32(pb, 1); /* entry count */
981

    
982
    avio_wb32(pb, 0xc); /* size */
983
    ffio_wfourcc(pb, "url ");
984
    avio_wb32(pb, 1); /* version & flags */
985

    
986
    return 28;
987
}
988

    
989
static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
990
{
991
    int64_t pos = avio_tell(pb);
992
    avio_wb32(pb, 0); /* size */
993
    ffio_wfourcc(pb, "stbl");
994
    mov_write_stsd_tag(pb, track);
995
    mov_write_stts_tag(pb, track);
996
    if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
997
         track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
998
        track->hasKeyframes && track->hasKeyframes < track->entry)
999
        mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
1000
    if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
1001
        mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
1002
    if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
1003
        track->flags & MOV_TRACK_CTTS)
1004
        mov_write_ctts_tag(pb, track);
1005
    mov_write_stsc_tag(pb, track);
1006
    mov_write_stsz_tag(pb, track);
1007
    mov_write_stco_tag(pb, track);
1008
    return updateSize(pb, pos);
1009
}
1010

    
1011
static int mov_write_dinf_tag(AVIOContext *pb)
1012
{
1013
    int64_t pos = avio_tell(pb);
1014
    avio_wb32(pb, 0); /* size */
1015
    ffio_wfourcc(pb, "dinf");
1016
    mov_write_dref_tag(pb);
1017
    return updateSize(pb, pos);
1018
}
1019

    
1020
static int mov_write_nmhd_tag(AVIOContext *pb)
1021
{
1022
    avio_wb32(pb, 12);
1023
    ffio_wfourcc(pb, "nmhd");
1024
    avio_wb32(pb, 0);
1025
    return 12;
1026
}
1027

    
1028
static int mov_write_gmhd_tag(AVIOContext *pb)
1029
{
1030
    avio_wb32(pb, 0x20);   /* size */
1031
    ffio_wfourcc(pb, "gmhd");
1032
    avio_wb32(pb, 0x18);   /* gmin size */
1033
    ffio_wfourcc(pb, "gmin");/* generic media info */
1034
    avio_wb32(pb, 0);      /* version & flags */
1035
    avio_wb16(pb, 0x40);   /* graphics mode = */
1036
    avio_wb16(pb, 0x8000); /* opColor (r?) */
1037
    avio_wb16(pb, 0x8000); /* opColor (g?) */
1038
    avio_wb16(pb, 0x8000); /* opColor (b?) */
1039
    avio_wb16(pb, 0);      /* balance */
1040
    avio_wb16(pb, 0);      /* reserved */
1041
    return 0x20;
1042
}
1043

    
1044
static int mov_write_smhd_tag(AVIOContext *pb)
1045
{
1046
    avio_wb32(pb, 16); /* size */
1047
    ffio_wfourcc(pb, "smhd");
1048
    avio_wb32(pb, 0); /* version & flags */
1049
    avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1050
    avio_wb16(pb, 0); /* reserved */
1051
    return 16;
1052
}
1053

    
1054
static int mov_write_vmhd_tag(AVIOContext *pb)
1055
{
1056
    avio_wb32(pb, 0x14); /* size (always 0x14) */
1057
    ffio_wfourcc(pb, "vmhd");
1058
    avio_wb32(pb, 0x01); /* version & flags */
1059
    avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1060
    return 0x14;
1061
}
1062

    
1063
static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1064
{
1065
    const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1066
    int64_t pos = avio_tell(pb);
1067

    
1068
    if (!track) { /* no media --> data handler */
1069
        hdlr = "dhlr";
1070
        hdlr_type = "url ";
1071
        descr = "DataHandler";
1072
    } else {
1073
        hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1074
        if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1075
            hdlr_type = "vide";
1076
            descr = "VideoHandler";
1077
        } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1078
            hdlr_type = "soun";
1079
            descr = "SoundHandler";
1080
        } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1081
            if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1082
            else                                      hdlr_type = "text";
1083
            descr = "SubtitleHandler";
1084
        } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1085
            hdlr_type = "hint";
1086
            descr = "HintHandler";
1087
        }
1088
    }
1089

    
1090
    avio_wb32(pb, 0); /* size */
1091
    ffio_wfourcc(pb, "hdlr");
1092
    avio_wb32(pb, 0); /* Version & flags */
1093
    avio_write(pb, hdlr, 4); /* handler */
1094
    ffio_wfourcc(pb, hdlr_type); /* handler type */
1095
    avio_wb32(pb ,0); /* reserved */
1096
    avio_wb32(pb ,0); /* reserved */
1097
    avio_wb32(pb ,0); /* reserved */
1098
    if (!track || track->mode == MODE_MOV)
1099
        avio_w8(pb, strlen(descr)); /* pascal string */
1100
    avio_write(pb, descr, strlen(descr)); /* handler description */
1101
    if (track && track->mode != MODE_MOV)
1102
        avio_w8(pb, 0); /* c string */
1103
    return updateSize(pb, pos);
1104
}
1105

    
1106
static int mov_write_hmhd_tag(AVIOContext *pb)
1107
{
1108
    /* This atom must be present, but leaving the values at zero
1109
     * seems harmless. */
1110
    avio_wb32(pb, 28); /* size */
1111
    ffio_wfourcc(pb, "hmhd");
1112
    avio_wb32(pb, 0); /* version, flags */
1113
    avio_wb16(pb, 0); /* maxPDUsize */
1114
    avio_wb16(pb, 0); /* avgPDUsize */
1115
    avio_wb32(pb, 0); /* maxbitrate */
1116
    avio_wb32(pb, 0); /* avgbitrate */
1117
    avio_wb32(pb, 0); /* reserved */
1118
    return 28;
1119
}
1120

    
1121
static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1122
{
1123
    int64_t pos = avio_tell(pb);
1124
    avio_wb32(pb, 0); /* size */
1125
    ffio_wfourcc(pb, "minf");
1126
    if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1127
        mov_write_vmhd_tag(pb);
1128
    else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1129
        mov_write_smhd_tag(pb);
1130
    else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1131
        if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);
1132
        else                                      mov_write_nmhd_tag(pb);
1133
    } else if (track->tag == MKTAG('r','t','p',' ')) {
1134
        mov_write_hmhd_tag(pb);
1135
    }
1136
    if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1137
        mov_write_hdlr_tag(pb, NULL);
1138
    mov_write_dinf_tag(pb);
1139
    mov_write_stbl_tag(pb, track);
1140
    return updateSize(pb, pos);
1141
}
1142

    
1143
static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1144
{
1145
    int version = track->trackDuration < INT32_MAX ? 0 : 1;
1146

    
1147
    (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1148
    ffio_wfourcc(pb, "mdhd");
1149
    avio_w8(pb, version);
1150
    avio_wb24(pb, 0); /* flags */
1151
    if (version == 1) {
1152
        avio_wb64(pb, track->time);
1153
        avio_wb64(pb, track->time);
1154
    } else {
1155
        avio_wb32(pb, track->time); /* creation time */
1156
        avio_wb32(pb, track->time); /* modification time */
1157
    }
1158
    avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1159
    (version == 1) ? avio_wb64(pb, track->trackDuration) : avio_wb32(pb, track->trackDuration); /* duration */
1160
    avio_wb16(pb, track->language); /* language */
1161
    avio_wb16(pb, 0); /* reserved (quality) */
1162

    
1163
    if(version!=0 && track->mode == MODE_MOV){
1164
        av_log(NULL, AV_LOG_ERROR,
1165
            "FATAL error, file duration too long for timebase, this file will not be\n"
1166
            "playable with quicktime. Choose a different timebase or a different\n"
1167
            "container format\n");
1168
    }
1169

    
1170
    return 32;
1171
}
1172

    
1173
static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1174
{
1175
    int64_t pos = avio_tell(pb);
1176
    avio_wb32(pb, 0); /* size */
1177
    ffio_wfourcc(pb, "mdia");
1178
    mov_write_mdhd_tag(pb, track);
1179
    mov_write_hdlr_tag(pb, track);
1180
    mov_write_minf_tag(pb, track);
1181
    return updateSize(pb, pos);
1182
}
1183

    
1184
static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1185
{
1186
    int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1187
                                      track->timescale, AV_ROUND_UP);
1188
    int version = duration < INT32_MAX ? 0 : 1;
1189

    
1190
    (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1191
    ffio_wfourcc(pb, "tkhd");
1192
    avio_w8(pb, version);
1193
    avio_wb24(pb, 0xf); /* flags (track enabled) */
1194
    if (version == 1) {
1195
        avio_wb64(pb, track->time);
1196
        avio_wb64(pb, track->time);
1197
    } else {
1198
        avio_wb32(pb, track->time); /* creation time */
1199
        avio_wb32(pb, track->time); /* modification time */
1200
    }
1201
    avio_wb32(pb, track->trackID); /* track-id */
1202
    avio_wb32(pb, 0); /* reserved */
1203
    (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1204

    
1205
    avio_wb32(pb, 0); /* reserved */
1206
    avio_wb32(pb, 0); /* reserved */
1207
    avio_wb32(pb, 0x0); /* reserved (Layer & Alternate group) */
1208
    /* Volume, only for audio */
1209
    if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1210
        avio_wb16(pb, 0x0100);
1211
    else
1212
        avio_wb16(pb, 0);
1213
    avio_wb16(pb, 0); /* reserved */
1214

    
1215
    /* Matrix structure */
1216
    avio_wb32(pb, 0x00010000); /* reserved */
1217
    avio_wb32(pb, 0x0); /* reserved */
1218
    avio_wb32(pb, 0x0); /* reserved */
1219
    avio_wb32(pb, 0x0); /* reserved */
1220
    avio_wb32(pb, 0x00010000); /* reserved */
1221
    avio_wb32(pb, 0x0); /* reserved */
1222
    avio_wb32(pb, 0x0); /* reserved */
1223
    avio_wb32(pb, 0x0); /* reserved */
1224
    avio_wb32(pb, 0x40000000); /* reserved */
1225

    
1226
    /* Track width and height, for visual only */
1227
    if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1228
              track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1229
        if(track->mode == MODE_MOV) {
1230
            avio_wb32(pb, track->enc->width << 16);
1231
            avio_wb32(pb, track->height << 16);
1232
        } else {
1233
            double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1234
            if(!sample_aspect_ratio || track->height != track->enc->height)
1235
                sample_aspect_ratio = 1;
1236
            avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000);
1237
            avio_wb32(pb, track->height*0x10000);
1238
        }
1239
    }
1240
    else {
1241
        avio_wb32(pb, 0);
1242
        avio_wb32(pb, 0);
1243
    }
1244
    return 0x5c;
1245
}
1246

    
1247
static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1248
{
1249
    int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1250
                               track->enc->sample_aspect_ratio.den);
1251

    
1252
    int64_t pos = avio_tell(pb);
1253

    
1254
    avio_wb32(pb, 0); /* size */
1255
    ffio_wfourcc(pb, "tapt");
1256

    
1257
    avio_wb32(pb, 20);
1258
    ffio_wfourcc(pb, "clef");
1259
    avio_wb32(pb, 0);
1260
    avio_wb32(pb, width << 16);
1261
    avio_wb32(pb, track->enc->height << 16);
1262

    
1263
    avio_wb32(pb, 20);
1264
    ffio_wfourcc(pb, "enof");
1265
    avio_wb32(pb, 0);
1266
    avio_wb32(pb, track->enc->width << 16);
1267
    avio_wb32(pb, track->enc->height << 16);
1268

    
1269
    return updateSize(pb, pos);
1270
};
1271

    
1272
// This box seems important for the psp playback ... without it the movie seems to hang
1273
static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1274
{
1275
    avio_wb32(pb, 0x24); /* size  */
1276
    ffio_wfourcc(pb, "edts");
1277
    avio_wb32(pb, 0x1c); /* size  */
1278
    ffio_wfourcc(pb, "elst");
1279
    avio_wb32(pb, 0x0);
1280
    avio_wb32(pb, 0x1);
1281

    
1282
    /* duration   ... doesn't seem to effect psp */
1283
    avio_wb32(pb, av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1284
                                track->timescale, AV_ROUND_UP));
1285

    
1286
    avio_wb32(pb, track->cluster[0].cts); /* first pts is cts since dts is 0 */
1287
    avio_wb32(pb, 0x00010000);
1288
    return 0x24;
1289
}
1290

    
1291
static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1292
{
1293
    avio_wb32(pb, 20);   // size
1294
    ffio_wfourcc(pb, "tref");
1295
    avio_wb32(pb, 12);   // size (subatom)
1296
    avio_wl32(pb, track->tref_tag);
1297
    avio_wb32(pb, track->tref_id);
1298
    return 20;
1299
}
1300

    
1301
// goes at the end of each track!  ... Critical for PSP playback ("Incompatible data" without it)
1302
static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1303
{
1304
    avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1305
    ffio_wfourcc(pb, "uuid");
1306
    ffio_wfourcc(pb, "USMT");
1307
    avio_wb32(pb, 0x21d24fce);
1308
    avio_wb32(pb, 0xbb88695c);
1309
    avio_wb32(pb, 0xfac9c740);
1310
    avio_wb32(pb, 0x1c);     // another size here!
1311
    ffio_wfourcc(pb, "MTDT");
1312
    avio_wb32(pb, 0x00010012);
1313
    avio_wb32(pb, 0x0a);
1314
    avio_wb32(pb, 0x55c40000);
1315
    avio_wb32(pb, 0x1);
1316
    avio_wb32(pb, 0x0);
1317
    return 0x34;
1318
}
1319

    
1320
static int mov_write_udta_sdp(AVIOContext *pb, AVCodecContext *ctx, int index)
1321
{
1322
    char buf[1000] = "";
1323
    int len;
1324

    
1325
    ff_sdp_write_media(buf, sizeof(buf), ctx, NULL, NULL, 0, 0);
1326
    av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", index);
1327
    len = strlen(buf);
1328

    
1329
    avio_wb32(pb, len + 24);
1330
    ffio_wfourcc(pb, "udta");
1331
    avio_wb32(pb, len + 16);
1332
    ffio_wfourcc(pb, "hnti");
1333
    avio_wb32(pb, len + 8);
1334
    ffio_wfourcc(pb, "sdp ");
1335
    avio_write(pb, buf, len);
1336
    return len + 24;
1337
}
1338

    
1339
static int mov_write_trak_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1340
{
1341
    int64_t pos = avio_tell(pb);
1342
    avio_wb32(pb, 0); /* size */
1343
    ffio_wfourcc(pb, "trak");
1344
    mov_write_tkhd_tag(pb, track, st);
1345
    if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS)
1346
        mov_write_edts_tag(pb, track);  // PSP Movies require edts box
1347
    if (track->tref_tag)
1348
        mov_write_tref_tag(pb, track);
1349
    mov_write_mdia_tag(pb, track);
1350
    if (track->mode == MODE_PSP)
1351
        mov_write_uuid_tag_psp(pb,track);  // PSP Movies require this uuid box
1352
    if (track->tag == MKTAG('r','t','p',' '))
1353
        mov_write_udta_sdp(pb, track->rtp_ctx->streams[0]->codec, track->trackID);
1354
    if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1355
        double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1356
        if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
1357
            mov_write_tapt_tag(pb, track);
1358
    };
1359
    return updateSize(pb, pos);
1360
}
1361

    
1362
#if 0
1363
/* TODO: Not sorted out, but not necessary either */
1364
static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1365
{
1366
    avio_wb32(pb, 0x15); /* size */
1367
    ffio_wfourcc(pb, "iods");
1368
    avio_wb32(pb, 0);    /* version & flags */
1369
    avio_wb16(pb, 0x1007);
1370
    avio_w8(pb, 0);
1371
    avio_wb16(pb, 0x4fff);
1372
    avio_wb16(pb, 0xfffe);
1373
    avio_wb16(pb, 0x01ff);
1374
    return 0x15;
1375
}
1376
#endif
1377

    
1378
static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1379
{
1380
    int maxTrackID = 1, i;
1381
    int64_t maxTrackLenTemp, maxTrackLen = 0;
1382
    int version;
1383

    
1384
    for (i=0; i<mov->nb_streams; i++) {
1385
        if(mov->tracks[i].entry > 0) {
1386
            maxTrackLenTemp = av_rescale_rnd(mov->tracks[i].trackDuration,
1387
                                             MOV_TIMESCALE,
1388
                                             mov->tracks[i].timescale,
1389
                                             AV_ROUND_UP);
1390
            if(maxTrackLen < maxTrackLenTemp)
1391
                maxTrackLen = maxTrackLenTemp;
1392
            if(maxTrackID < mov->tracks[i].trackID)
1393
                maxTrackID = mov->tracks[i].trackID;
1394
        }
1395
    }
1396

    
1397
    version = maxTrackLen < UINT32_MAX ? 0 : 1;
1398
    (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1399
    ffio_wfourcc(pb, "mvhd");
1400
    avio_w8(pb, version);
1401
    avio_wb24(pb, 0); /* flags */
1402
    if (version == 1) {
1403
        avio_wb64(pb, mov->time);
1404
        avio_wb64(pb, mov->time);
1405
    } else {
1406
        avio_wb32(pb, mov->time); /* creation time */
1407
        avio_wb32(pb, mov->time); /* modification time */
1408
    }
1409
    avio_wb32(pb, MOV_TIMESCALE);
1410
    (version == 1) ? avio_wb64(pb, maxTrackLen) : avio_wb32(pb, maxTrackLen); /* duration of longest track */
1411

    
1412
    avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1413
    avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1414
    avio_wb16(pb, 0); /* reserved */
1415
    avio_wb32(pb, 0); /* reserved */
1416
    avio_wb32(pb, 0); /* reserved */
1417

    
1418
    /* Matrix structure */
1419
    avio_wb32(pb, 0x00010000); /* reserved */
1420
    avio_wb32(pb, 0x0); /* reserved */
1421
    avio_wb32(pb, 0x0); /* reserved */
1422
    avio_wb32(pb, 0x0); /* reserved */
1423
    avio_wb32(pb, 0x00010000); /* reserved */
1424
    avio_wb32(pb, 0x0); /* reserved */
1425
    avio_wb32(pb, 0x0); /* reserved */
1426
    avio_wb32(pb, 0x0); /* reserved */
1427
    avio_wb32(pb, 0x40000000); /* reserved */
1428

    
1429
    avio_wb32(pb, 0); /* reserved (preview time) */
1430
    avio_wb32(pb, 0); /* reserved (preview duration) */
1431
    avio_wb32(pb, 0); /* reserved (poster time) */
1432
    avio_wb32(pb, 0); /* reserved (selection time) */
1433
    avio_wb32(pb, 0); /* reserved (selection duration) */
1434
    avio_wb32(pb, 0); /* reserved (current time) */
1435
    avio_wb32(pb, maxTrackID+1); /* Next track id */
1436
    return 0x6c;
1437
}
1438

    
1439
static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1440
                                     AVFormatContext *s)
1441
{
1442
    avio_wb32(pb, 33); /* size */
1443
    ffio_wfourcc(pb, "hdlr");
1444
    avio_wb32(pb, 0);
1445
    avio_wb32(pb, 0);
1446
    ffio_wfourcc(pb, "mdir");
1447
    ffio_wfourcc(pb, "appl");
1448
    avio_wb32(pb, 0);
1449
    avio_wb32(pb, 0);
1450
    avio_w8(pb, 0);
1451
    return 33;
1452
}
1453

    
1454
/* helper function to write a data tag with the specified string as data */
1455
static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1456
{
1457
    if(long_style){
1458
        int size = 16 + strlen(data);
1459
        avio_wb32(pb, size); /* size */
1460
        ffio_wfourcc(pb, "data");
1461
        avio_wb32(pb, 1);
1462
        avio_wb32(pb, 0);
1463
        avio_write(pb, data, strlen(data));
1464
        return size;
1465
    }else{
1466
        if (!lang)
1467
            lang = ff_mov_iso639_to_lang("und", 1);
1468
        avio_wb16(pb, strlen(data)); /* string length */
1469
        avio_wb16(pb, lang);
1470
        avio_write(pb, data, strlen(data));
1471
        return strlen(data) + 4;
1472
    }
1473
}
1474

    
1475
static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){
1476
    int size = 0;
1477
    if (value && value[0]) {
1478
        int64_t pos = avio_tell(pb);
1479
        avio_wb32(pb, 0); /* size */
1480
        ffio_wfourcc(pb, name);
1481
        mov_write_string_data_tag(pb, value, lang, long_style);
1482
        size= updateSize(pb, pos);
1483
    }
1484
    return size;
1485
}
1486

    
1487
static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1488
                                     const char *name, const char *tag,
1489
                                     int long_style)
1490
{
1491
    int l, lang = 0, len, len2;
1492
    AVMetadataTag *t, *t2 = NULL;
1493
    char tag2[16];
1494

    
1495
    if (!(t = av_metadata_get(s->metadata, tag, NULL, 0)))
1496
        return 0;
1497

    
1498
    len = strlen(t->key);
1499
    snprintf(tag2, sizeof(tag2), "%s-", tag);
1500
    while ((t2 = av_metadata_get(s->metadata, tag2, t2, AV_METADATA_IGNORE_SUFFIX))) {
1501
        len2 = strlen(t2->key);
1502
        if (len2 == len+4 && !strcmp(t->value, t2->value)
1503
            && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {
1504
            lang = l;
1505
            break;
1506
        }
1507
    }
1508
    return mov_write_string_tag(pb, name, t->value, lang, long_style);
1509
}
1510

    
1511
/* iTunes track number */
1512
static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
1513
                              AVFormatContext *s)
1514
{
1515
    AVMetadataTag *t = av_metadata_get(s->metadata, "track", NULL, 0);
1516
    int size = 0, track = t ? atoi(t->value) : 0;
1517
    if (track) {
1518
        avio_wb32(pb, 32); /* size */
1519
        ffio_wfourcc(pb, "trkn");
1520
            avio_wb32(pb, 24); /* size */
1521
            ffio_wfourcc(pb, "data");
1522
            avio_wb32(pb, 0);        // 8 bytes empty
1523
            avio_wb32(pb, 0);
1524
            avio_wb16(pb, 0);        // empty
1525
            avio_wb16(pb, track);    // track number
1526
            avio_wb16(pb, 0);        // total track number
1527
            avio_wb16(pb, 0);        // empty
1528
        size = 32;
1529
    }
1530
    return size;
1531
}
1532

    
1533
/* iTunes meta data list */
1534
static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
1535
                              AVFormatContext *s)
1536
{
1537
    int64_t pos = avio_tell(pb);
1538
    avio_wb32(pb, 0); /* size */
1539
    ffio_wfourcc(pb, "ilst");
1540
    mov_write_string_metadata(s, pb, "\251nam", "title"    , 1);
1541
    mov_write_string_metadata(s, pb, "\251ART", "artist"   , 1);
1542
    mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
1543
    mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
1544
    mov_write_string_metadata(s, pb, "\251alb", "album"    , 1);
1545
    mov_write_string_metadata(s, pb, "\251day", "date"     , 1);
1546
    mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
1547
    mov_write_string_metadata(s, pb, "\251cmt", "comment"  , 1);
1548
    mov_write_string_metadata(s, pb, "\251gen", "genre"    , 1);
1549
    mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
1550
    mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
1551
    mov_write_string_metadata(s, pb, "\251lyr", "lyrics"   , 1);
1552
    mov_write_string_metadata(s, pb, "desc",    "description",1);
1553
    mov_write_string_metadata(s, pb, "ldes",    "synopsis" , 1);
1554
    mov_write_string_metadata(s, pb, "tvsh",    "show"     , 1);
1555
    mov_write_string_metadata(s, pb, "tven",    "episode_id",1);
1556
    mov_write_string_metadata(s, pb, "tvnn",    "network"  , 1);
1557
    mov_write_trkn_tag(pb, mov, s);
1558
    return updateSize(pb, pos);
1559
}
1560

    
1561
/* iTunes meta data tag */
1562
static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
1563
                              AVFormatContext *s)
1564
{
1565
    int size = 0;
1566
    int64_t pos = avio_tell(pb);
1567
    avio_wb32(pb, 0); /* size */
1568
    ffio_wfourcc(pb, "meta");
1569
    avio_wb32(pb, 0);
1570
    mov_write_itunes_hdlr_tag(pb, mov, s);
1571
    mov_write_ilst_tag(pb, mov, s);
1572
    size = updateSize(pb, pos);
1573
    return size;
1574
}
1575

    
1576
static int utf8len(const uint8_t *b)
1577
{
1578
    int len=0;
1579
    int val;
1580
    while(*b){
1581
        GET_UTF8(val, *b++, return -1;)
1582
        len++;
1583
    }
1584
    return len;
1585
}
1586

    
1587
static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
1588
{
1589
    int val;
1590
    while(*b){
1591
        GET_UTF8(val, *b++, return -1;)
1592
        avio_wb16(pb, val);
1593
    }
1594
    avio_wb16(pb, 0x00);
1595
    return 0;
1596
}
1597

    
1598
static uint16_t language_code(const char *str)
1599
{
1600
    return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);
1601
}
1602

    
1603
static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
1604
                                  const char *tag, const char *str)
1605
{
1606
    int64_t pos = avio_tell(pb);
1607
    AVMetadataTag *t = av_metadata_get(s->metadata, str, NULL, 0);
1608
    if (!t || !utf8len(t->value))
1609
        return 0;
1610
    avio_wb32(pb, 0);   /* size */
1611
    ffio_wfourcc(pb, tag); /* type */
1612
    avio_wb32(pb, 0);   /* version + flags */
1613
    if (!strcmp(tag, "yrrc"))
1614
        avio_wb16(pb, atoi(t->value));
1615
    else {
1616
        avio_wb16(pb, language_code("eng")); /* language */
1617
        avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */
1618
        if (!strcmp(tag, "albm") &&
1619
            (t = av_metadata_get(s->metadata, "track", NULL, 0)))
1620
            avio_w8(pb, atoi(t->value));
1621
    }
1622
    return updateSize(pb, pos);
1623
}
1624

    
1625
static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
1626
{
1627
    int64_t pos = avio_tell(pb);
1628
    int i, nb_chapters = FFMIN(s->nb_chapters, 255);
1629

    
1630
    avio_wb32(pb, 0);            // size
1631
    ffio_wfourcc(pb, "chpl");
1632
    avio_wb32(pb, 0x01000000);   // version + flags
1633
    avio_wb32(pb, 0);            // unknown
1634
    avio_w8(pb, nb_chapters);
1635

    
1636
    for (i = 0; i < nb_chapters; i++) {
1637
        AVChapter *c = s->chapters[i];
1638
        AVMetadataTag *t;
1639
        avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
1640

    
1641
        if ((t = av_metadata_get(c->metadata, "title", NULL, 0))) {
1642
            int len = FFMIN(strlen(t->value), 255);
1643
            avio_w8(pb, len);
1644
            avio_write(pb, t->value, len);
1645
        } else
1646
            avio_w8(pb, 0);
1647
    }
1648
    return updateSize(pb, pos);
1649
}
1650

    
1651
static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1652
                              AVFormatContext *s)
1653
{
1654
    AVIOContext *pb_buf;
1655
    int i, ret, size;
1656
    uint8_t *buf;
1657

    
1658
    for (i = 0; i < s->nb_streams; i++)
1659
        if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
1660
            return 0;
1661
        }
1662

    
1663
    ret = url_open_dyn_buf(&pb_buf);
1664
    if(ret < 0)
1665
        return ret;
1666

    
1667
        if (mov->mode & MODE_3GP) {
1668
            mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
1669
            mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
1670
            mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
1671
            mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
1672
            mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
1673
            mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
1674
            mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
1675
            mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
1676
        } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
1677
            mov_write_string_metadata(s, pb_buf, "\251ART", "artist"     , 0);
1678
            mov_write_string_metadata(s, pb_buf, "\251nam", "title"      , 0);
1679
            mov_write_string_metadata(s, pb_buf, "\251aut", "author"     , 0);
1680
            mov_write_string_metadata(s, pb_buf, "\251alb", "album"      , 0);
1681
            mov_write_string_metadata(s, pb_buf, "\251day", "date"       , 0);
1682
            mov_write_string_metadata(s, pb_buf, "\251swr", "encoder"    , 0);
1683
            mov_write_string_metadata(s, pb_buf, "\251des", "comment"    , 0);
1684
            mov_write_string_metadata(s, pb_buf, "\251gen", "genre"      , 0);
1685
            mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright"  , 0);
1686
        } else {
1687
            /* iTunes meta data */
1688
            mov_write_meta_tag(pb_buf, mov, s);
1689
        }
1690

    
1691
        if (s->nb_chapters)
1692
            mov_write_chpl_tag(pb_buf, s);
1693

    
1694
    if ((size = url_close_dyn_buf(pb_buf, &buf)) > 0) {
1695
        avio_wb32(pb, size+8);
1696
        ffio_wfourcc(pb, "udta");
1697
        avio_write(pb, buf, size);
1698
    }
1699
    av_free(buf);
1700

    
1701
    return 0;
1702
}
1703

    
1704
static void mov_write_psp_udta_tag(AVIOContext *pb,
1705
                                  const char *str, const char *lang, int type)
1706
{
1707
    int len = utf8len(str)+1;
1708
    if(len<=0)
1709
        return;
1710
    avio_wb16(pb, len*2+10);            /* size */
1711
    avio_wb32(pb, type);                /* type */
1712
    avio_wb16(pb, language_code(lang)); /* language */
1713
    avio_wb16(pb, 0x01);                /* ? */
1714
    ascii_to_wc(pb, str);
1715
}
1716

    
1717
static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
1718
{
1719
    AVMetadataTag *title = av_metadata_get(s->metadata, "title", NULL, 0);
1720
    int64_t pos, pos2;
1721

    
1722
    if (title) {
1723
        pos = avio_tell(pb);
1724
        avio_wb32(pb, 0); /* size placeholder*/
1725
        ffio_wfourcc(pb, "uuid");
1726
        ffio_wfourcc(pb, "USMT");
1727
        avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1728
        avio_wb32(pb, 0xbb88695c);
1729
        avio_wb32(pb, 0xfac9c740);
1730

    
1731
        pos2 = avio_tell(pb);
1732
        avio_wb32(pb, 0); /* size placeholder*/
1733
        ffio_wfourcc(pb, "MTDT");
1734
        avio_wb16(pb, 4);
1735

    
1736
        // ?
1737
        avio_wb16(pb, 0x0C);                 /* size */
1738
        avio_wb32(pb, 0x0B);                 /* type */
1739
        avio_wb16(pb, language_code("und")); /* language */
1740
        avio_wb16(pb, 0x0);                  /* ? */
1741
        avio_wb16(pb, 0x021C);               /* data */
1742

    
1743
        mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT,      "eng", 0x04);
1744
        mov_write_psp_udta_tag(pb, title->value,          "eng", 0x01);
1745
//        snprintf(dt,32,"%04d/%02d/%02d %02d:%02d:%02d",t_st->tm_year+1900,t_st->tm_mon+1,t_st->tm_mday,t_st->tm_hour,t_st->tm_min,t_st->tm_sec);
1746
        mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
1747

    
1748
        updateSize(pb, pos2);
1749
        return updateSize(pb, pos);
1750
    }
1751

    
1752
    return 0;
1753
}
1754

    
1755
static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
1756
                              AVFormatContext *s)
1757
{
1758
    int i;
1759
    int64_t pos = avio_tell(pb);
1760
    avio_wb32(pb, 0); /* size placeholder*/
1761
    ffio_wfourcc(pb, "moov");
1762

    
1763
    for (i=0; i<mov->nb_streams; i++) {
1764
        if(mov->tracks[i].entry <= 0) continue;
1765

    
1766
        mov->tracks[i].time = mov->time;
1767
        mov->tracks[i].trackID = i+1;
1768
    }
1769

    
1770
    if (mov->chapter_track)
1771
        for (i=0; i<s->nb_streams; i++) {
1772
            mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
1773
            mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].trackID;
1774
        }
1775
    for (i = 0; i < mov->nb_streams; i++) {
1776
        if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
1777
            mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
1778
            mov->tracks[i].tref_id =
1779
                mov->tracks[mov->tracks[i].src_track].trackID;
1780
        }
1781
    }
1782

    
1783
    mov_write_mvhd_tag(pb, mov);
1784
    //mov_write_iods_tag(pb, mov);
1785
    for (i=0; i<mov->nb_streams; i++) {
1786
        if(mov->tracks[i].entry > 0) {
1787
            mov_write_trak_tag(pb, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
1788
        }
1789
    }
1790

    
1791
    if (mov->mode == MODE_PSP)
1792
        mov_write_uuidusmt_tag(pb, s);
1793
    else
1794
        mov_write_udta_tag(pb, mov, s);
1795

    
1796
    return updateSize(pb, pos);
1797
}
1798

    
1799
static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
1800
{
1801
    avio_wb32(pb, 8);    // placeholder for extended size field (64 bit)
1802
    ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
1803

    
1804
    mov->mdat_pos = avio_tell(pb);
1805
    avio_wb32(pb, 0); /* size placeholder*/
1806
    ffio_wfourcc(pb, "mdat");
1807
    return 0;
1808
}
1809

    
1810
/* TODO: This needs to be more general */
1811
static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
1812
{
1813
    MOVMuxContext *mov = s->priv_data;
1814
    int64_t pos = avio_tell(pb);
1815
    int has_h264 = 0, has_video = 0;
1816
    int minor = 0x200;
1817
    int i;
1818

    
1819
    for (i = 0; i < s->nb_streams; i++) {
1820
        AVStream *st = s->streams[i];
1821
        if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1822
            has_video = 1;
1823
        if (st->codec->codec_id == CODEC_ID_H264)
1824
            has_h264 = 1;
1825
    }
1826

    
1827
    avio_wb32(pb, 0); /* size */
1828
    ffio_wfourcc(pb, "ftyp");
1829

    
1830
    if (mov->mode == MODE_3GP) {
1831
        ffio_wfourcc(pb, has_h264 ? "3gp6"  : "3gp4");
1832
        minor =     has_h264 ?   0x100 :   0x200;
1833
    } else if (mov->mode & MODE_3G2) {
1834
        ffio_wfourcc(pb, has_h264 ? "3g2b"  : "3g2a");
1835
        minor =     has_h264 ? 0x20000 : 0x10000;
1836
    }else if (mov->mode == MODE_PSP)
1837
        ffio_wfourcc(pb, "MSNV");
1838
    else if (mov->mode == MODE_MP4)
1839
        ffio_wfourcc(pb, "isom");
1840
    else if (mov->mode == MODE_IPOD)
1841
        ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
1842
    else
1843
        ffio_wfourcc(pb, "qt  ");
1844

    
1845
    avio_wb32(pb, minor);
1846

    
1847
    if(mov->mode == MODE_MOV)
1848
        ffio_wfourcc(pb, "qt  ");
1849
    else{
1850
        ffio_wfourcc(pb, "isom");
1851
        ffio_wfourcc(pb, "iso2");
1852
        if(has_h264)
1853
            ffio_wfourcc(pb, "avc1");
1854
    }
1855

    
1856
    if (mov->mode == MODE_3GP)
1857
        ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
1858
    else if (mov->mode & MODE_3G2)
1859
        ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
1860
    else if (mov->mode == MODE_PSP)
1861
        ffio_wfourcc(pb, "MSNV");
1862
    else if (mov->mode == MODE_MP4)
1863
        ffio_wfourcc(pb, "mp41");
1864
    return updateSize(pb, pos);
1865
}
1866

    
1867
static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
1868
{
1869
    AVCodecContext *VideoCodec = s->streams[0]->codec;
1870
    AVCodecContext *AudioCodec = s->streams[1]->codec;
1871
    int AudioRate = AudioCodec->sample_rate;
1872
    int FrameRate = ((VideoCodec->time_base.den) * (0x10000))/ (VideoCodec->time_base.num);
1873
    int audio_kbitrate= AudioCodec->bit_rate / 1000;
1874
    int video_kbitrate= FFMIN(VideoCodec->bit_rate / 1000, 800 - audio_kbitrate);
1875

    
1876
    avio_wb32(pb, 0x94); /* size */
1877
    ffio_wfourcc(pb, "uuid");
1878
    ffio_wfourcc(pb, "PROF");
1879

    
1880
    avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1881
    avio_wb32(pb, 0xbb88695c);
1882
    avio_wb32(pb, 0xfac9c740);
1883

    
1884
    avio_wb32(pb, 0x0);  /* ? */
1885
    avio_wb32(pb, 0x3);  /* 3 sections ? */
1886

    
1887
    avio_wb32(pb, 0x14); /* size */
1888
    ffio_wfourcc(pb, "FPRF");
1889
    avio_wb32(pb, 0x0);  /* ? */
1890
    avio_wb32(pb, 0x0);  /* ? */
1891
    avio_wb32(pb, 0x0);  /* ? */
1892

    
1893
    avio_wb32(pb, 0x2c);  /* size */
1894
    ffio_wfourcc(pb, "APRF");/* audio */
1895
    avio_wb32(pb, 0x0);
1896
    avio_wb32(pb, 0x2);   /* TrackID */
1897
    ffio_wfourcc(pb, "mp4a");
1898
    avio_wb32(pb, 0x20f);
1899
    avio_wb32(pb, 0x0);
1900
    avio_wb32(pb, audio_kbitrate);
1901
    avio_wb32(pb, audio_kbitrate);
1902
    avio_wb32(pb, AudioRate);
1903
    avio_wb32(pb, AudioCodec->channels);
1904

    
1905
    avio_wb32(pb, 0x34);  /* size */
1906
    ffio_wfourcc(pb, "VPRF");   /* video */
1907
    avio_wb32(pb, 0x0);
1908
    avio_wb32(pb, 0x1);    /* TrackID */
1909
    if (VideoCodec->codec_id == CODEC_ID_H264) {
1910
        ffio_wfourcc(pb, "avc1");
1911
        avio_wb16(pb, 0x014D);
1912
        avio_wb16(pb, 0x0015);
1913
    } else {
1914
        ffio_wfourcc(pb, "mp4v");
1915
        avio_wb16(pb, 0x0000);
1916
        avio_wb16(pb, 0x0103);
1917
    }
1918
    avio_wb32(pb, 0x0);
1919
    avio_wb32(pb, video_kbitrate);
1920
    avio_wb32(pb, video_kbitrate);
1921
    avio_wb32(pb, FrameRate);
1922
    avio_wb32(pb, FrameRate);
1923
    avio_wb16(pb, VideoCodec->width);
1924
    avio_wb16(pb, VideoCodec->height);
1925
    avio_wb32(pb, 0x010001); /* ? */
1926
}
1927

    
1928
static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
1929
{
1930
    uint32_t c = -1;
1931
    int i, closed_gop = 0;
1932

    
1933
    for (i = 0; i < pkt->size - 4; i++) {
1934
        c = (c<<8) + pkt->data[i];
1935
        if (c == 0x1b8) { // gop
1936
            closed_gop = pkt->data[i+4]>>6 & 0x01;
1937
        } else if (c == 0x100) { // pic
1938
            int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1939
            if (!temp_ref || closed_gop) // I picture is not reordered
1940
                *flags = MOV_SYNC_SAMPLE;
1941
            else
1942
                *flags = MOV_PARTIAL_SYNC_SAMPLE;
1943
            break;
1944
        }
1945
    }
1946
    return 0;
1947
}
1948

    
1949
int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
1950
{
1951
    MOVMuxContext *mov = s->priv_data;
1952
    AVIOContext *pb = s->pb;
1953
    MOVTrack *trk = &mov->tracks[pkt->stream_index];
1954
    AVCodecContext *enc = trk->enc;
1955
    unsigned int samplesInChunk = 0;
1956
    int size= pkt->size;
1957

    
1958
    if (url_is_streamed(s->pb)) return 0; /* Can't handle that */
1959
    if (!size) return 0; /* Discard 0 sized packets */
1960

    
1961
    if (enc->codec_id == CODEC_ID_AMR_NB) {
1962
        /* We must find out how many AMR blocks there are in one packet */
1963
        static uint16_t packed_size[16] =
1964
            {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0};
1965
        int len = 0;
1966

    
1967
        while (len < size && samplesInChunk < 100) {
1968
            len += packed_size[(pkt->data[len] >> 3) & 0x0F];
1969
            samplesInChunk++;
1970
        }
1971
        if(samplesInChunk > 1){
1972
            av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
1973
            return -1;
1974
        }
1975
    } else if (enc->codec_id == CODEC_ID_ADPCM_MS ||
1976
               enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
1977
        samplesInChunk = enc->frame_size;
1978
    } else if (trk->sampleSize)
1979
        samplesInChunk = size/trk->sampleSize;
1980
    else
1981
        samplesInChunk = 1;
1982

    
1983
    /* copy extradata if it exists */
1984
    if (trk->vosLen == 0 && enc->extradata_size > 0) {
1985
        trk->vosLen = enc->extradata_size;
1986
        trk->vosData = av_malloc(trk->vosLen);
1987
        memcpy(trk->vosData, enc->extradata, trk->vosLen);
1988
    }
1989

    
1990
    if (enc->codec_id == CODEC_ID_H264 && trk->vosLen > 0 && *(uint8_t *)trk->vosData != 1) {
1991
        /* from x264 or from bytestream h264 */
1992
        /* nal reformating needed */
1993
        size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
1994
    } else {
1995
        avio_write(pb, pkt->data, size);
1996
    }
1997

    
1998
    if ((enc->codec_id == CODEC_ID_DNXHD ||
1999
         enc->codec_id == CODEC_ID_AC3) && !trk->vosLen) {
2000
        /* copy frame to create needed atoms */
2001
        trk->vosLen = size;
2002
        trk->vosData = av_malloc(size);
2003
        if (!trk->vosData)
2004
            return AVERROR(ENOMEM);
2005
        memcpy(trk->vosData, pkt->data, size);
2006
    }
2007

    
2008
    if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
2009
        trk->cluster = av_realloc(trk->cluster, (trk->entry + MOV_INDEX_CLUSTER_SIZE) * sizeof(*trk->cluster));
2010
        if (!trk->cluster)
2011
            return -1;
2012
    }
2013

    
2014
    trk->cluster[trk->entry].pos = avio_tell(pb) - size;
2015
    trk->cluster[trk->entry].samplesInChunk = samplesInChunk;
2016
    trk->cluster[trk->entry].size = size;
2017
    trk->cluster[trk->entry].entries = samplesInChunk;
2018
    trk->cluster[trk->entry].dts = pkt->dts;
2019
    trk->trackDuration = pkt->dts - trk->cluster[0].dts + pkt->duration;
2020

    
2021
    if (pkt->pts == AV_NOPTS_VALUE) {
2022
        av_log(s, AV_LOG_WARNING, "pts has no value\n");
2023
        pkt->pts = pkt->dts;
2024
    }
2025
    if (pkt->dts != pkt->pts)
2026
        trk->flags |= MOV_TRACK_CTTS;
2027
    trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
2028
    trk->cluster[trk->entry].flags = 0;
2029
    if (pkt->flags & AV_PKT_FLAG_KEY) {
2030
        if (mov->mode == MODE_MOV && enc->codec_id == CODEC_ID_MPEG2VIDEO &&
2031
            trk->entry > 0) { // force sync sample for the first key frame
2032
            mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
2033
            if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
2034
                trk->flags |= MOV_TRACK_STPS;
2035
        } else {
2036
            trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
2037
        }
2038
        if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
2039
            trk->hasKeyframes++;
2040
    }
2041
    trk->entry++;
2042
    trk->sampleCount += samplesInChunk;
2043
    mov->mdat_size += size;
2044

    
2045
    put_flush_packet(pb);
2046

    
2047
    if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
2048
        ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry);
2049
    return 0;
2050
}
2051

    
2052
// QuickTime chapters involve an additional text track with the chapter names
2053
// as samples, and a tref pointing from the other tracks to the chapter one.
2054
static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
2055
{
2056
    MOVMuxContext *mov = s->priv_data;
2057
    MOVTrack *track = &mov->tracks[tracknum];
2058
    AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
2059
    int i, len;
2060

    
2061
    track->mode = mov->mode;
2062
    track->tag = MKTAG('t','e','x','t');
2063
    track->timescale = MOV_TIMESCALE;
2064
    track->enc = avcodec_alloc_context();
2065
    track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
2066

    
2067
    for (i = 0; i < s->nb_chapters; i++) {
2068
        AVChapter *c = s->chapters[i];
2069
        AVMetadataTag *t;
2070

    
2071
        int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
2072
        pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
2073
        pkt.duration = end - pkt.dts;
2074

    
2075
        if ((t = av_metadata_get(c->metadata, "title", NULL, 0))) {
2076
            len = strlen(t->value);
2077
            pkt.size = len+2;
2078
            pkt.data = av_malloc(pkt.size);
2079
            AV_WB16(pkt.data, len);
2080
            memcpy(pkt.data+2, t->value, len);
2081
            ff_mov_write_packet(s, &pkt);
2082
            av_freep(&pkt.data);
2083
        }
2084
    }
2085
}
2086

    
2087
static int mov_write_header(AVFormatContext *s)
2088
{
2089
    AVIOContext *pb = s->pb;
2090
    MOVMuxContext *mov = s->priv_data;
2091
    int i, hint_track = 0;
2092

    
2093
    if (url_is_streamed(s->pb)) {
2094
        av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
2095
        return -1;
2096
    }
2097

    
2098
    /* Default mode == MP4 */
2099
    mov->mode = MODE_MP4;
2100

    
2101
    if (s->oformat != NULL) {
2102
        if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
2103
        else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
2104
        else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
2105
        else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
2106
        else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
2107

    
2108
        mov_write_ftyp_tag(pb,s);
2109
        if (mov->mode == MODE_PSP) {
2110
            if (s->nb_streams != 2) {
2111
                av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
2112
                return -1;
2113
            }
2114
            mov_write_uuidprof_tag(pb,s);
2115
        }
2116
    }
2117

    
2118
    mov->nb_streams = s->nb_streams;
2119
    if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
2120
        mov->chapter_track = mov->nb_streams++;
2121

    
2122
    if (s->flags & AVFMT_FLAG_RTP_HINT) {
2123
        /* Add hint tracks for each audio and video stream */
2124
        hint_track = mov->nb_streams;
2125
        for (i = 0; i < s->nb_streams; i++) {
2126
            AVStream *st = s->streams[i];
2127
            if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2128
                st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2129
                mov->nb_streams++;
2130
            }
2131
        }
2132
    }
2133

    
2134
    mov->tracks = av_mallocz(mov->nb_streams*sizeof(*mov->tracks));
2135
    if (!mov->tracks)
2136
        return AVERROR(ENOMEM);
2137

    
2138
    for(i=0; i<s->nb_streams; i++){
2139
        AVStream *st= s->streams[i];
2140
        MOVTrack *track= &mov->tracks[i];
2141
        AVMetadataTag *lang = av_metadata_get(st->metadata, "language", NULL,0);
2142

    
2143
        track->enc = st->codec;
2144
        track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
2145
        if (track->language < 0)
2146
            track->language = 0;
2147
        track->mode = mov->mode;
2148
        track->tag = mov_find_codec_tag(s, track);
2149
        if (!track->tag) {
2150
            av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
2151
                   "codec not currently supported in container\n", i);
2152
            goto error;
2153
        }
2154
        /* If hinting of this track is enabled by a later hint track,
2155
         * this is updated. */
2156
        track->hint_track = -1;
2157
        if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
2158
            if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
2159
                track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
2160
                track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
2161
                if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
2162
                    av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
2163
                    goto error;
2164
                }
2165
                track->height = track->tag>>24 == 'n' ? 486 : 576;
2166
            }
2167
            track->timescale = st->codec->time_base.den;
2168
            if (track->mode == MODE_MOV && track->timescale > 100000)
2169
                av_log(s, AV_LOG_WARNING,
2170
                       "WARNING codec timebase is very high. If duration is too long,\n"
2171
                       "file may not be playable by quicktime. Specify a shorter timebase\n"
2172
                       "or choose different container.\n");
2173
        }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
2174
            track->timescale = st->codec->sample_rate;
2175
            if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
2176
                av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i);
2177
                goto error;
2178
            }else if(st->codec->codec_id == CODEC_ID_ADPCM_MS ||
2179
                     st->codec->codec_id == CODEC_ID_ADPCM_IMA_WAV){
2180
                if (!st->codec->block_align) {
2181
                    av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
2182
                    goto error;
2183
                }
2184
                track->sampleSize = st->codec->block_align;
2185
            }else if(st->codec->frame_size > 1){ /* assume compressed audio */
2186
                track->audio_vbr = 1;
2187
            }else{
2188
                st->codec->frame_size = 1;
2189
                track->sampleSize = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
2190
            }
2191
            if (track->mode != MODE_MOV) {
2192
                if (track->timescale > UINT16_MAX) {
2193
                    av_log(s, AV_LOG_ERROR, "track %d: output format does not support "
2194
                           "sample rate %dhz\n", i, track->timescale);
2195
                    goto error;
2196
                }
2197
                if (track->enc->codec_id == CODEC_ID_MP3 && track->timescale < 16000) {
2198
                    av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
2199
                           i, track->enc->sample_rate);
2200
                    goto error;
2201
                }
2202
            }
2203
        }else if(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE){
2204
            track->timescale = st->codec->time_base.den;
2205
        }
2206
        if (!track->height)
2207
            track->height = st->codec->height;
2208

    
2209
        av_set_pts_info(st, 64, 1, track->timescale);
2210
    }
2211

    
2212
    mov_write_mdat_tag(pb, mov);
2213
    mov->time = s->timestamp + 0x7C25B080; //1970 based -> 1904 based
2214

    
2215
    if (mov->chapter_track)
2216
        mov_create_chapter_track(s, mov->chapter_track);
2217

    
2218
    if (s->flags & AVFMT_FLAG_RTP_HINT) {
2219
        /* Initialize the hint tracks for each audio and video stream */
2220
        for (i = 0; i < s->nb_streams; i++) {
2221
            AVStream *st = s->streams[i];
2222
            if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2223
                st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2224
                ff_mov_init_hinting(s, hint_track, i);
2225
                hint_track++;
2226
            }
2227
        }
2228
    }
2229

    
2230
    put_flush_packet(pb);
2231

    
2232
    return 0;
2233
 error:
2234
    av_freep(&mov->tracks);
2235
    return -1;
2236
}
2237

    
2238
static int mov_write_trailer(AVFormatContext *s)
2239
{
2240
    MOVMuxContext *mov = s->priv_data;
2241
    AVIOContext *pb = s->pb;
2242
    int res = 0;
2243
    int i;
2244

    
2245
    int64_t moov_pos = avio_tell(pb);
2246

    
2247
    /* Write size of mdat tag */
2248
    if (mov->mdat_size+8 <= UINT32_MAX) {
2249
        avio_seek(pb, mov->mdat_pos, SEEK_SET);
2250
        avio_wb32(pb, mov->mdat_size+8);
2251
    } else {
2252
        /* overwrite 'wide' placeholder atom */
2253
        avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
2254
        avio_wb32(pb, 1); /* special value: real atom size will be 64 bit value after tag field */
2255
        ffio_wfourcc(pb, "mdat");
2256
        avio_wb64(pb, mov->mdat_size+16);
2257
    }
2258
    avio_seek(pb, moov_pos, SEEK_SET);
2259

    
2260
    mov_write_moov_tag(pb, mov, s);
2261

    
2262
    if (mov->chapter_track)
2263
        av_freep(&mov->tracks[mov->chapter_track].enc);
2264

    
2265
    for (i=0; i<mov->nb_streams; i++) {
2266
        if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
2267
            ff_mov_close_hinting(&mov->tracks[i]);
2268
        av_freep(&mov->tracks[i].cluster);
2269

    
2270
        if(mov->tracks[i].vosLen) av_free(mov->tracks[i].vosData);
2271

    
2272
    }
2273

    
2274
    put_flush_packet(pb);
2275

    
2276
    av_freep(&mov->tracks);
2277

    
2278
    return res;
2279
}
2280

    
2281
#if CONFIG_MOV_MUXER
2282
AVOutputFormat ff_mov_muxer = {
2283
    "mov",
2284
    NULL_IF_CONFIG_SMALL("MOV format"),
2285
    NULL,
2286
    "mov",
2287
    sizeof(MOVMuxContext),
2288
    CODEC_ID_AAC,
2289
    CODEC_ID_MPEG4,
2290
    mov_write_header,
2291
    ff_mov_write_packet,
2292
    mov_write_trailer,
2293
    .flags = AVFMT_GLOBALHEADER,
2294
    .codec_tag = (const AVCodecTag* const []){codec_movvideo_tags, codec_movaudio_tags, 0},
2295
};
2296
#endif
2297
#if CONFIG_TGP_MUXER
2298
AVOutputFormat ff_tgp_muxer = {
2299
    "3gp",
2300
    NULL_IF_CONFIG_SMALL("3GP format"),
2301
    NULL,
2302
    "3gp",
2303
    sizeof(MOVMuxContext),
2304
    CODEC_ID_AMR_NB,
2305
    CODEC_ID_H263,
2306
    mov_write_header,
2307
    ff_mov_write_packet,
2308
    mov_write_trailer,
2309
    .flags = AVFMT_GLOBALHEADER,
2310
    .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2311
};
2312
#endif
2313
#if CONFIG_MP4_MUXER
2314
AVOutputFormat ff_mp4_muxer = {
2315
    "mp4",
2316
    NULL_IF_CONFIG_SMALL("MP4 format"),
2317
    "application/mp4",
2318
    "mp4",
2319
    sizeof(MOVMuxContext),
2320
    CODEC_ID_AAC,
2321
    CODEC_ID_MPEG4,
2322
    mov_write_header,
2323
    ff_mov_write_packet,
2324
    mov_write_trailer,
2325
    .flags = AVFMT_GLOBALHEADER,
2326
    .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2327
};
2328
#endif
2329
#if CONFIG_PSP_MUXER
2330
AVOutputFormat ff_psp_muxer = {
2331
    "psp",
2332
    NULL_IF_CONFIG_SMALL("PSP MP4 format"),
2333
    NULL,
2334
    "mp4,psp",
2335
    sizeof(MOVMuxContext),
2336
    CODEC_ID_AAC,
2337
    CODEC_ID_MPEG4,
2338
    mov_write_header,
2339
    ff_mov_write_packet,
2340
    mov_write_trailer,
2341
    .flags = AVFMT_GLOBALHEADER,
2342
    .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2343
};
2344
#endif
2345
#if CONFIG_TG2_MUXER
2346
AVOutputFormat ff_tg2_muxer = {
2347
    "3g2",
2348
    NULL_IF_CONFIG_SMALL("3GP2 format"),
2349
    NULL,
2350
    "3g2",
2351
    sizeof(MOVMuxContext),
2352
    CODEC_ID_AMR_NB,
2353
    CODEC_ID_H263,
2354
    mov_write_header,
2355
    ff_mov_write_packet,
2356
    mov_write_trailer,
2357
    .flags = AVFMT_GLOBALHEADER,
2358
    .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2359
};
2360
#endif
2361
#if CONFIG_IPOD_MUXER
2362
AVOutputFormat ff_ipod_muxer = {
2363
    "ipod",
2364
    NULL_IF_CONFIG_SMALL("iPod H.264 MP4 format"),
2365
    "application/mp4",
2366
    "m4v,m4a",
2367
    sizeof(MOVMuxContext),
2368
    CODEC_ID_AAC,
2369
    CODEC_ID_H264,
2370
    mov_write_header,
2371
    ff_mov_write_packet,
2372
    mov_write_trailer,
2373
    .flags = AVFMT_GLOBALHEADER,
2374
    .codec_tag = (const AVCodecTag* const []){codec_ipod_tags, 0},
2375
};
2376
#endif