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ffmpeg / libavformat / movenc.c @ 93dfda88

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1
/*
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 * 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
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 * 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);
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    avio_seek(pb, pos, SEEK_SET);
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    avio_wb32(pb, curpos - pos); /* rewrite size */
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    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;
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    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;
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        ffio_wfourcc(pb, "co64");
60
    } else
61
        ffio_wfourcc(pb, "stco");
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    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);
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    }
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 */
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    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
        sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
95
        avio_wb32(pb, sSize); // sample size
96
        avio_wb32(pb, entries); // sample count
97
    }
98
    else {
99
        avio_wb32(pb, 0); // sample size
100
        avio_wb32(pb, entries); // sample count
101
        for (i=0; i<track->entry; i++) {
102
            for (j=0; j<track->cluster[i].entries; j++) {
103
                avio_wb32(pb, track->cluster[i].size /
104
                         track->cluster[i].entries);
105
            }
106
        }
107
    }
108
    return updateSize(pb, pos);
109
}
110

    
111
/* Sample to chunk atom */
112
static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
113
{
114
    int index = 0, oldval = -1, i;
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    int64_t entryPos, curpos;
116

    
117
    int64_t pos = avio_tell(pb);
118
    avio_wb32(pb, 0); /* size */
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    ffio_wfourcc(pb, "stsc");
120
    avio_wb32(pb, 0); // version & flags
121
    entryPos = avio_tell(pb);
122
    avio_wb32(pb, track->entry); // entry count
123
    for (i=0; i<track->entry; i++) {
124
        if(oldval != track->cluster[i].samplesInChunk)
125
        {
126
            avio_wb32(pb, i+1); // first chunk
127
            avio_wb32(pb, track->cluster[i].samplesInChunk); // samples per chunk
128
            avio_wb32(pb, 0x1); // sample description index
129
            oldval = track->cluster[i].samplesInChunk;
130
            index++;
131
        }
132
    }
133
    curpos = avio_tell(pb);
134
    avio_seek(pb, entryPos, SEEK_SET);
135
    avio_wb32(pb, index); // rewrite size
136
    avio_seek(pb, curpos, SEEK_SET);
137

    
138
    return updateSize(pb, pos);
139
}
140

    
141
/* Sync sample atom */
142
static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
143
{
144
    int64_t curpos, entryPos;
145
    int i, index = 0;
146
    int64_t pos = avio_tell(pb);
147
    avio_wb32(pb, 0); // size
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    ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
149
    avio_wb32(pb, 0); // version & flags
150
    entryPos = avio_tell(pb);
151
    avio_wb32(pb, track->entry); // entry count
152
    for (i=0; i<track->entry; i++) {
153
        if (track->cluster[i].flags & flag) {
154
            avio_wb32(pb, i+1);
155
            index++;
156
        }
157
    }
158
    curpos = avio_tell(pb);
159
    avio_seek(pb, entryPos, SEEK_SET);
160
    avio_wb32(pb, index); // rewrite size
161
    avio_seek(pb, curpos, SEEK_SET);
162
    return updateSize(pb, pos);
163
}
164

    
165
static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
166
{
167
    avio_wb32(pb, 0x11); /* size */
168
    if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
169
    else                         ffio_wfourcc(pb, "damr");
170
    ffio_wfourcc(pb, "FFMP");
171
    avio_w8(pb, 0); /* decoder version */
172

    
173
    avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
174
    avio_w8(pb, 0x00); /* Mode change period (no restriction) */
175
    avio_w8(pb, 0x01); /* Frames per sample */
176
    return 0x11;
177
}
178

    
179
static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
180
{
181
    GetBitContext gbc;
182
    PutBitContext pbc;
183
    uint8_t buf[3];
184
    int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
185

    
186
    if (track->vosLen < 7)
187
        return -1;
188

    
189
    avio_wb32(pb, 11);
190
    ffio_wfourcc(pb, "dac3");
191

    
192
    init_get_bits(&gbc, track->vosData+4, track->vosLen-4);
193
    fscod      = get_bits(&gbc, 2);
194
    frmsizecod = get_bits(&gbc, 6);
195
    bsid       = get_bits(&gbc, 5);
196
    bsmod      = get_bits(&gbc, 3);
197
    acmod      = get_bits(&gbc, 3);
198
    if (acmod == 2) {
199
        skip_bits(&gbc, 2); // dsurmod
200
    } else {
201
        if ((acmod & 1) && acmod != 1)
202
            skip_bits(&gbc, 2); // cmixlev
203
        if (acmod & 4)
204
            skip_bits(&gbc, 2); // surmixlev
205
    }
206
    lfeon = get_bits1(&gbc);
207

    
208
    init_put_bits(&pbc, buf, sizeof(buf));
209
    put_bits(&pbc, 2, fscod);
210
    put_bits(&pbc, 5, bsid);
211
    put_bits(&pbc, 3, bsmod);
212
    put_bits(&pbc, 3, acmod);
213
    put_bits(&pbc, 1, lfeon);
214
    put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code
215
    put_bits(&pbc, 5, 0); // reserved
216

    
217
    flush_put_bits(&pbc);
218
    avio_write(pb, buf, sizeof(buf));
219

    
220
    return 11;
221
}
222

    
223
/**
224
 * This function writes extradata "as is".
225
 * Extradata must be formated like a valid atom (with size and tag)
226
 */
227
static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
228
{
229
    avio_write(pb, track->enc->extradata, track->enc->extradata_size);
230
    return track->enc->extradata_size;
231
}
232

    
233
static int mov_write_enda_tag(AVIOContext *pb)
234
{
235
    avio_wb32(pb, 10);
236
    ffio_wfourcc(pb, "enda");
237
    avio_wb16(pb, 1); /* little endian */
238
    return 10;
239
}
240

    
241
static void putDescr(AVIOContext *pb, int tag, unsigned int size)
242
{
243
    int i = 3;
244
    avio_w8(pb, tag);
245
    for(; i>0; i--)
246
        avio_w8(pb, (size>>(7*i)) | 0x80);
247
    avio_w8(pb, size & 0x7F);
248
}
249

    
250
static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
251
{
252
    int64_t pos = avio_tell(pb);
253
    int decoderSpecificInfoLen = track->vosLen ? 5+track->vosLen : 0;
254

    
255
    avio_wb32(pb, 0); // size
256
    ffio_wfourcc(pb, "esds");
257
    avio_wb32(pb, 0); // Version
258

    
259
    // ES descriptor
260
    putDescr(pb, 0x03, 3 + 5+13 + decoderSpecificInfoLen + 5+1);
261
    avio_wb16(pb, track->trackID);
262
    avio_w8(pb, 0x00); // flags (= no flags)
263

    
264
    // DecoderConfig descriptor
265
    putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);
266

    
267
    // Object type indication
268
    if ((track->enc->codec_id == CODEC_ID_MP2 ||
269
         track->enc->codec_id == CODEC_ID_MP3) &&
270
        track->enc->sample_rate > 24000)
271
        avio_w8(pb, 0x6B); // 11172-3
272
    else
273
        avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
274

    
275
    // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
276
    // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
277
    if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
278
        avio_w8(pb, 0x15); // flags (= Audiostream)
279
    else
280
        avio_w8(pb, 0x11); // flags (= Visualstream)
281

    
282
    avio_w8(pb,  track->enc->rc_buffer_size>>(3+16));      // Buffersize DB (24 bits)
283
    avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB
284

    
285
    avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
286
    if(track->enc->rc_max_rate != track->enc->rc_min_rate || track->enc->rc_min_rate==0)
287
        avio_wb32(pb, 0); // vbr
288
    else
289
        avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
290

    
291
    if (track->vosLen) {
292
        // DecoderSpecific info descriptor
293
        putDescr(pb, 0x05, track->vosLen);
294
        avio_write(pb, track->vosData, track->vosLen);
295
    }
296

    
297
    // SL descriptor
298
    putDescr(pb, 0x06, 1);
299
    avio_w8(pb, 0x02);
300
    return updateSize(pb, pos);
301
}
302

    
303
static int mov_pcm_le_gt16(enum CodecID codec_id)
304
{
305
    return codec_id == CODEC_ID_PCM_S24LE ||
306
           codec_id == CODEC_ID_PCM_S32LE ||
307
           codec_id == CODEC_ID_PCM_F32LE ||
308
           codec_id == CODEC_ID_PCM_F64LE;
309
}
310

    
311
static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
312
{
313
    int64_t pos = avio_tell(pb);
314
    avio_wb32(pb, 0);
315
    avio_wl32(pb, track->tag); // store it byteswapped
316
    track->enc->codec_tag = av_bswap16(track->tag >> 16);
317
    ff_put_wav_header(pb, track->enc);
318
    return updateSize(pb, pos);
319
}
320

    
321
static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
322
{
323
    int64_t pos = avio_tell(pb);
324

    
325
    avio_wb32(pb, 0);     /* size */
326
    ffio_wfourcc(pb, "wave");
327

    
328
    avio_wb32(pb, 12);    /* size */
329
    ffio_wfourcc(pb, "frma");
330
    avio_wl32(pb, track->tag);
331

    
332
    if (track->enc->codec_id == CODEC_ID_AAC) {
333
        /* useless atom needed by mplayer, ipod, not needed by quicktime */
334
        avio_wb32(pb, 12); /* size */
335
        ffio_wfourcc(pb, "mp4a");
336
        avio_wb32(pb, 0);
337
        mov_write_esds_tag(pb, track);
338
    } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
339
        mov_write_enda_tag(pb);
340
    } else if (track->enc->codec_id == CODEC_ID_AMR_NB) {
341
        mov_write_amr_tag(pb, track);
342
    } else if (track->enc->codec_id == CODEC_ID_AC3) {
343
        mov_write_ac3_tag(pb, track);
344
    } else if (track->enc->codec_id == CODEC_ID_ALAC) {
345
        mov_write_extradata_tag(pb, track);
346
    } else if (track->enc->codec_id == CODEC_ID_ADPCM_MS ||
347
               track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
348
        mov_write_ms_tag(pb, track);
349
    }
350

    
351
    avio_wb32(pb, 8);     /* size */
352
    avio_wb32(pb, 0);     /* null tag */
353

    
354
    return updateSize(pb, pos);
355
}
356

    
357
static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
358
{
359
    avio_wb32(pb, track->vosLen+8);
360
    ffio_wfourcc(pb, "glbl");
361
    avio_write(pb, track->vosData, track->vosLen);
362
    return 8+track->vosLen;
363
}
364

    
365
/**
366
 * Compute flags for 'lpcm' tag.
367
 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
368
 */
369
static int mov_get_lpcm_flags(enum CodecID codec_id)
370
{
371
    switch (codec_id) {
372
    case CODEC_ID_PCM_F32BE:
373
    case CODEC_ID_PCM_F64BE:
374
        return 11;
375
    case CODEC_ID_PCM_F32LE:
376
    case CODEC_ID_PCM_F64LE:
377
        return 9;
378
    case CODEC_ID_PCM_U8:
379
        return 10;
380
    case CODEC_ID_PCM_S16BE:
381
    case CODEC_ID_PCM_S24BE:
382
    case CODEC_ID_PCM_S32BE:
383
        return 14;
384
    case CODEC_ID_PCM_S8:
385
    case CODEC_ID_PCM_S16LE:
386
    case CODEC_ID_PCM_S24LE:
387
    case CODEC_ID_PCM_S32LE:
388
        return 12;
389
    default:
390
        return 0;
391
    }
392
}
393

    
394
static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
395
{
396
    int64_t pos = avio_tell(pb);
397
    int version = 0;
398
    uint32_t tag = track->tag;
399

    
400
    if (track->mode == MODE_MOV) {
401
        if (track->timescale > UINT16_MAX) {
402
            if (mov_get_lpcm_flags(track->enc->codec_id))
403
                tag = AV_RL32("lpcm");
404
            version = 2;
405
        } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
406
                   track->enc->codec_id == CODEC_ID_ADPCM_MS ||
407
                   track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
408
            version = 1;
409
        }
410
    }
411

    
412
    avio_wb32(pb, 0); /* size */
413
    avio_wl32(pb, tag); // store it byteswapped
414
    avio_wb32(pb, 0); /* Reserved */
415
    avio_wb16(pb, 0); /* Reserved */
416
    avio_wb16(pb, 1); /* Data-reference index, XXX  == 1 */
417

    
418
    /* SoundDescription */
419
    avio_wb16(pb, version); /* Version */
420
    avio_wb16(pb, 0); /* Revision level */
421
    avio_wb32(pb, 0); /* Reserved */
422

    
423
    if (version == 2) {
424
        avio_wb16(pb, 3);
425
        avio_wb16(pb, 16);
426
        avio_wb16(pb, 0xfffe);
427
        avio_wb16(pb, 0);
428
        avio_wb32(pb, 0x00010000);
429
        avio_wb32(pb, 72);
430
        avio_wb64(pb, av_dbl2int(track->timescale));
431
        avio_wb32(pb, track->enc->channels);
432
        avio_wb32(pb, 0x7F000000);
433
        avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
434
        avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
435
        avio_wb32(pb, track->sampleSize);
436
        avio_wb32(pb, track->enc->frame_size);
437
    } else {
438
        if (track->mode == MODE_MOV) {
439
            avio_wb16(pb, track->enc->channels);
440
            if (track->enc->codec_id == CODEC_ID_PCM_U8 ||
441
                track->enc->codec_id == CODEC_ID_PCM_S8)
442
                avio_wb16(pb, 8); /* bits per sample */
443
            else
444
                avio_wb16(pb, 16);
445
            avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
446
        } else { /* reserved for mp4/3gp */
447
            avio_wb16(pb, 2);
448
            avio_wb16(pb, 16);
449
            avio_wb16(pb, 0);
450
        }
451

    
452
        avio_wb16(pb, 0); /* packet size (= 0) */
453
        avio_wb16(pb, track->timescale); /* Time scale */
454
        avio_wb16(pb, 0); /* Reserved */
455
    }
456

    
457
    if(version == 1) { /* SoundDescription V1 extended info */
458
        avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
459
        avio_wb32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */
460
        avio_wb32(pb, track->sampleSize); /* Bytes per frame */
461
        avio_wb32(pb, 2); /* Bytes per sample */
462
    }
463

    
464
    if(track->mode == MODE_MOV &&
465
       (track->enc->codec_id == CODEC_ID_AAC ||
466
        track->enc->codec_id == CODEC_ID_AC3 ||
467
        track->enc->codec_id == CODEC_ID_AMR_NB ||
468
        track->enc->codec_id == CODEC_ID_ALAC ||
469
        track->enc->codec_id == CODEC_ID_ADPCM_MS ||
470
        track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV ||
471
        mov_pcm_le_gt16(track->enc->codec_id)))
472
        mov_write_wave_tag(pb, track);
473
    else if(track->tag == MKTAG('m','p','4','a'))
474
        mov_write_esds_tag(pb, track);
475
    else if(track->enc->codec_id == CODEC_ID_AMR_NB)
476
        mov_write_amr_tag(pb, track);
477
    else if(track->enc->codec_id == CODEC_ID_AC3)
478
        mov_write_ac3_tag(pb, track);
479
    else if(track->enc->codec_id == CODEC_ID_ALAC)
480
        mov_write_extradata_tag(pb, track);
481
    else if(track->vosLen > 0)
482
        mov_write_glbl_tag(pb, track);
483

    
484
    return updateSize(pb, pos);
485
}
486

    
487
static int mov_write_d263_tag(AVIOContext *pb)
488
{
489
    avio_wb32(pb, 0xf); /* size */
490
    ffio_wfourcc(pb, "d263");
491
    ffio_wfourcc(pb, "FFMP");
492
    avio_w8(pb, 0); /* decoder version */
493
    /* FIXME use AVCodecContext level/profile, when encoder will set values */
494
    avio_w8(pb, 0xa); /* level */
495
    avio_w8(pb, 0); /* profile */
496
    return 0xf;
497
}
498

    
499
/* TODO: No idea about these values */
500
static int mov_write_svq3_tag(AVIOContext *pb)
501
{
502
    avio_wb32(pb, 0x15);
503
    ffio_wfourcc(pb, "SMI ");
504
    ffio_wfourcc(pb, "SEQH");
505
    avio_wb32(pb, 0x5);
506
    avio_wb32(pb, 0xe2c0211d);
507
    avio_wb32(pb, 0xc0000000);
508
    avio_w8(pb, 0);
509
    return 0x15;
510
}
511

    
512
static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
513
{
514
    int64_t pos = avio_tell(pb);
515

    
516
    avio_wb32(pb, 0);
517
    ffio_wfourcc(pb, "avcC");
518
    ff_isom_write_avcc(pb, track->vosData, track->vosLen);
519
    return updateSize(pb, pos);
520
}
521

    
522
/* also used by all avid codecs (dv, imx, meridien) and their variants */
523
static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
524
{
525
    int i;
526
    avio_wb32(pb, 24); /* size */
527
    ffio_wfourcc(pb, "ACLR");
528
    ffio_wfourcc(pb, "ACLR");
529
    ffio_wfourcc(pb, "0001");
530
    avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
531
    avio_wb32(pb, 0); /* unknown */
532

    
533
    avio_wb32(pb, 24); /* size */
534
    ffio_wfourcc(pb, "APRG");
535
    ffio_wfourcc(pb, "APRG");
536
    ffio_wfourcc(pb, "0001");
537
    avio_wb32(pb, 1); /* unknown */
538
    avio_wb32(pb, 0); /* unknown */
539

    
540
    avio_wb32(pb, 120); /* size */
541
    ffio_wfourcc(pb, "ARES");
542
    ffio_wfourcc(pb, "ARES");
543
    ffio_wfourcc(pb, "0001");
544
    avio_wb32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */
545
    avio_wb32(pb, track->enc->width);
546
    /* values below are based on samples created with quicktime and avid codecs */
547
    if (track->vosData[5] & 2) { // interlaced
548
        avio_wb32(pb, track->enc->height/2);
549
        avio_wb32(pb, 2); /* unknown */
550
        avio_wb32(pb, 0); /* unknown */
551
        avio_wb32(pb, 4); /* unknown */
552
    } else {
553
        avio_wb32(pb, track->enc->height);
554
        avio_wb32(pb, 1); /* unknown */
555
        avio_wb32(pb, 0); /* unknown */
556
        if (track->enc->height == 1080)
557
            avio_wb32(pb, 5); /* unknown */
558
        else
559
            avio_wb32(pb, 6); /* unknown */
560
    }
561
    /* padding */
562
    for (i = 0; i < 10; i++)
563
        avio_wb64(pb, 0);
564

    
565
    /* extra padding for stsd needed */
566
    avio_wb32(pb, 0);
567
    return 0;
568
}
569

    
570
static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
571
{
572
    int tag = track->enc->codec_tag;
573

    
574
    if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
575
        return 0;
576

    
577
    if      (track->enc->codec_id == CODEC_ID_H264)      tag = MKTAG('a','v','c','1');
578
    else if (track->enc->codec_id == CODEC_ID_AC3)       tag = MKTAG('a','c','-','3');
579
    else if (track->enc->codec_id == CODEC_ID_DIRAC)     tag = MKTAG('d','r','a','c');
580
    else if (track->enc->codec_id == CODEC_ID_MOV_TEXT)  tag = MKTAG('t','x','3','g');
581
    else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
582
    else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
583

    
584
    return tag;
585
}
586

    
587
static const AVCodecTag codec_ipod_tags[] = {
588
    { CODEC_ID_H264,   MKTAG('a','v','c','1') },
589
    { CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },
590
    { CODEC_ID_AAC,    MKTAG('m','p','4','a') },
591
    { CODEC_ID_ALAC,   MKTAG('a','l','a','c') },
592
    { CODEC_ID_AC3,    MKTAG('a','c','-','3') },
593
    { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
594
    { CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
595
    { CODEC_ID_NONE, 0 },
596
};
597

    
598
static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
599
{
600
    int tag = track->enc->codec_tag;
601

    
602
    // keep original tag for subs, ipod supports both formats
603
    if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
604
        (tag == MKTAG('t','x','3','g') ||
605
         tag == MKTAG('t','e','x','t'))))
606
        tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
607

    
608
    if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
609
        av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
610
               "Quicktime/Ipod might not play the file\n");
611

    
612
    return tag;
613
}
614

    
615
static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
616
{
617
    int tag;
618

    
619
    if (track->enc->width == 720) /* SD */
620
        if (track->enc->height == 480) /* NTSC */
621
            if  (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
622
            else                                         tag = MKTAG('d','v','c',' ');
623
        else if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
624
        else if (track->enc->pix_fmt == PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
625
        else                                             tag = MKTAG('d','v','p','p');
626
    else if (track->enc->height == 720) /* HD 720 line */
627
        if  (track->enc->time_base.den == 50)            tag = MKTAG('d','v','h','q');
628
        else                                             tag = MKTAG('d','v','h','p');
629
    else if (track->enc->height == 1080) /* HD 1080 line */
630
        if  (track->enc->time_base.den == 25)            tag = MKTAG('d','v','h','5');
631
        else                                             tag = MKTAG('d','v','h','6');
632
    else {
633
        av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
634
        return 0;
635
    }
636

    
637
    return tag;
638
}
639

    
640
static const struct {
641
    enum PixelFormat pix_fmt;
642
    uint32_t tag;
643
    unsigned bps;
644
} mov_pix_fmt_tags[] = {
645
    { PIX_FMT_YUYV422, MKTAG('y','u','v','s'),  0 },
646
    { PIX_FMT_UYVY422, MKTAG('2','v','u','y'),  0 },
647
    { PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
648
    { PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
649
    { PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
650
    { PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
651
    { PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
652
    { PIX_FMT_RGB24,   MKTAG('r','a','w',' '), 24 },
653
    { PIX_FMT_BGR24,   MKTAG('2','4','B','G'), 24 },
654
    { PIX_FMT_ARGB,    MKTAG('r','a','w',' '), 32 },
655
    { PIX_FMT_BGRA,    MKTAG('B','G','R','A'), 32 },
656
    { PIX_FMT_RGBA,    MKTAG('R','G','B','A'), 32 },
657
    { PIX_FMT_ABGR,    MKTAG('A','B','G','R'), 32 },
658
    { PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
659
};
660

    
661
static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
662
{
663
    int tag = track->enc->codec_tag;
664
    int i;
665

    
666
    for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
667
        if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
668
            tag = mov_pix_fmt_tags[i].tag;
669
            track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
670
            break;
671
        }
672
    }
673

    
674
    return tag;
675
}
676

    
677
static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
678
{
679
    int tag = track->enc->codec_tag;
680

    
681
    if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
682
                 (track->enc->codec_id == CODEC_ID_DVVIDEO ||
683
                  track->enc->codec_id == CODEC_ID_RAWVIDEO ||
684
                  track->enc->codec_id == CODEC_ID_H263 ||
685
                  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
686
        if (track->enc->codec_id == CODEC_ID_DVVIDEO)
687
            tag = mov_get_dv_codec_tag(s, track);
688
        else if (track->enc->codec_id == CODEC_ID_RAWVIDEO)
689
            tag = mov_get_rawvideo_codec_tag(s, track);
690
        else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
691
            tag = ff_codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
692
            if (!tag) { // if no mac fcc found, try with Microsoft tags
693
                tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
694
                if (tag)
695
                    av_log(s, AV_LOG_INFO, "Warning, using MS style video codec tag, "
696
                           "the file may be unplayable!\n");
697
            }
698
        } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
699
            tag = ff_codec_get_tag(codec_movaudio_tags, track->enc->codec_id);
700
            if (!tag) { // if no mac fcc found, try with Microsoft tags
701
                int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
702
                if (ms_tag) {
703
                    tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
704
                    av_log(s, AV_LOG_INFO, "Warning, using MS style audio codec tag, "
705
                           "the file may be unplayable!\n");
706
                }
707
            }
708
        } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
709
            tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
710
    }
711

    
712
    return tag;
713
}
714

    
715
static const AVCodecTag codec_3gp_tags[] = {
716
    { CODEC_ID_H263,   MKTAG('s','2','6','3') },
717
    { CODEC_ID_H264,   MKTAG('a','v','c','1') },
718
    { CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },
719
    { CODEC_ID_AAC,    MKTAG('m','p','4','a') },
720
    { CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
721
    { CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
722
    { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
723
    { CODEC_ID_NONE, 0 },
724
};
725

    
726
static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
727
{
728
    int tag = track->enc->codec_tag;
729

    
730
    if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
731
        tag = mp4_get_codec_tag(s, track);
732
    else if (track->mode == MODE_IPOD)
733
        tag = ipod_get_codec_tag(s, track);
734
    else if (track->mode & MODE_3GP)
735
        tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
736
    else
737
        tag = mov_get_codec_tag(s, track);
738

    
739
    return tag;
740
}
741

    
742
/** Write uuid atom.
743
 * Needed to make file play in iPods running newest firmware
744
 * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
745
 */
746
static int mov_write_uuid_tag_ipod(AVIOContext *pb)
747
{
748
    avio_wb32(pb, 28);
749
    ffio_wfourcc(pb, "uuid");
750
    avio_wb32(pb, 0x6b6840f2);
751
    avio_wb32(pb, 0x5f244fc5);
752
    avio_wb32(pb, 0xba39a51b);
753
    avio_wb32(pb, 0xcf0323f3);
754
    avio_wb32(pb, 0x0);
755
    return 28;
756
}
757

    
758
static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
759
{
760
    int64_t pos = avio_tell(pb);
761
    avio_wb32(pb, 0);    /* size */
762
    avio_wl32(pb, track->tag); // store it byteswapped
763
    avio_wb32(pb, 0);    /* Reserved */
764
    avio_wb16(pb, 0);    /* Reserved */
765
    avio_wb16(pb, 1);    /* Data-reference index */
766

    
767
    if (track->enc->extradata_size)
768
        avio_write(pb, track->enc->extradata, track->enc->extradata_size);
769

    
770
    return updateSize(pb, pos);
771
}
772

    
773
static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
774
{
775
    AVRational sar;
776
    av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
777
              track->enc->sample_aspect_ratio.den, INT_MAX);
778

    
779
    avio_wb32(pb, 16);
780
    ffio_wfourcc(pb, "pasp");
781
    avio_wb32(pb, sar.num);
782
    avio_wb32(pb, sar.den);
783
    return 16;
784
}
785

    
786
static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)
787
{
788
    int64_t pos = avio_tell(pb);
789
    char compressor_name[32];
790

    
791
    avio_wb32(pb, 0); /* size */
792
    avio_wl32(pb, track->tag); // store it byteswapped
793
    avio_wb32(pb, 0); /* Reserved */
794
    avio_wb16(pb, 0); /* Reserved */
795
    avio_wb16(pb, 1); /* Data-reference index */
796

    
797
    avio_wb16(pb, 0); /* Codec stream version */
798
    avio_wb16(pb, 0); /* Codec stream revision (=0) */
799
    if (track->mode == MODE_MOV) {
800
        ffio_wfourcc(pb, "FFMP"); /* Vendor */
801
        if(track->enc->codec_id == CODEC_ID_RAWVIDEO) {
802
            avio_wb32(pb, 0); /* Temporal Quality */
803
            avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
804
        } else {
805
            avio_wb32(pb, 0x200); /* Temporal Quality = normal */
806
            avio_wb32(pb, 0x200); /* Spatial Quality = normal */
807
        }
808
    } else {
809
        avio_wb32(pb, 0); /* Reserved */
810
        avio_wb32(pb, 0); /* Reserved */
811
        avio_wb32(pb, 0); /* Reserved */
812
    }
813
    avio_wb16(pb, track->enc->width); /* Video width */
814
    avio_wb16(pb, track->height); /* Video height */
815
    avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
816
    avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
817
    avio_wb32(pb, 0); /* Data size (= 0) */
818
    avio_wb16(pb, 1); /* Frame count (= 1) */
819

    
820
    memset(compressor_name,0,32);
821
    /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
822
    if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)
823
        strncpy(compressor_name,track->enc->codec->name,31);
824
    avio_w8(pb, strlen(compressor_name));
825
    avio_write(pb, compressor_name, 31);
826

    
827
    if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
828
        avio_wb16(pb, track->enc->bits_per_coded_sample);
829
    else
830
        avio_wb16(pb, 0x18); /* Reserved */
831
    avio_wb16(pb, 0xffff); /* Reserved */
832
    if(track->tag == MKTAG('m','p','4','v'))
833
        mov_write_esds_tag(pb, track);
834
    else if(track->enc->codec_id == CODEC_ID_H263)
835
        mov_write_d263_tag(pb);
836
    else if(track->enc->codec_id == CODEC_ID_SVQ3)
837
        mov_write_svq3_tag(pb);
838
    else if(track->enc->codec_id == CODEC_ID_DNXHD)
839
        mov_write_avid_tag(pb, track);
840
    else if(track->enc->codec_id == CODEC_ID_H264) {
841
        mov_write_avcc_tag(pb, track);
842
        if(track->mode == MODE_IPOD)
843
            mov_write_uuid_tag_ipod(pb);
844
    } else if(track->vosLen > 0)
845
        mov_write_glbl_tag(pb, track);
846

    
847
    if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
848
        track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
849
        mov_write_pasp_tag(pb, track);
850
    }
851

    
852
    return updateSize(pb, pos);
853
}
854

    
855
static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
856
{
857
    int64_t pos = avio_tell(pb);
858
    avio_wb32(pb, 0); /* size */
859
    ffio_wfourcc(pb, "rtp ");
860
    avio_wb32(pb, 0); /* Reserved */
861
    avio_wb16(pb, 0); /* Reserved */
862
    avio_wb16(pb, 1); /* Data-reference index */
863

    
864
    avio_wb16(pb, 1); /* Hint track version */
865
    avio_wb16(pb, 1); /* Highest compatible version */
866
    avio_wb32(pb, track->max_packet_size); /* Max packet size */
867

    
868
    avio_wb32(pb, 12); /* size */
869
    ffio_wfourcc(pb, "tims");
870
    avio_wb32(pb, track->timescale);
871

    
872
    return updateSize(pb, pos);
873
}
874

    
875
static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)
876
{
877
    int64_t pos = avio_tell(pb);
878
    avio_wb32(pb, 0); /* size */
879
    ffio_wfourcc(pb, "stsd");
880
    avio_wb32(pb, 0); /* version & flags */
881
    avio_wb32(pb, 1); /* entry count */
882
    if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
883
        mov_write_video_tag(pb, track);
884
    else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
885
        mov_write_audio_tag(pb, track);
886
    else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
887
        mov_write_subtitle_tag(pb, track);
888
    else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
889
        mov_write_rtp_tag(pb, track);
890
    return updateSize(pb, pos);
891
}
892

    
893
static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
894
{
895
    MOVStts *ctts_entries;
896
    uint32_t entries = 0;
897
    uint32_t atom_size;
898
    int i;
899

    
900
    ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
901
    ctts_entries[0].count = 1;
902
    ctts_entries[0].duration = track->cluster[0].cts;
903
    for (i=1; i<track->entry; i++) {
904
        if (track->cluster[i].cts == ctts_entries[entries].duration) {
905
            ctts_entries[entries].count++; /* compress */
906
        } else {
907
            entries++;
908
            ctts_entries[entries].duration = track->cluster[i].cts;
909
            ctts_entries[entries].count = 1;
910
        }
911
    }
912
    entries++; /* last one */
913
    atom_size = 16 + (entries * 8);
914
    avio_wb32(pb, atom_size); /* size */
915
    ffio_wfourcc(pb, "ctts");
916
    avio_wb32(pb, 0); /* version & flags */
917
    avio_wb32(pb, entries); /* entry count */
918
    for (i=0; i<entries; i++) {
919
        avio_wb32(pb, ctts_entries[i].count);
920
        avio_wb32(pb, ctts_entries[i].duration);
921
    }
922
    av_free(ctts_entries);
923
    return atom_size;
924
}
925

    
926
/* Time to sample atom */
927
static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
928
{
929
    MOVStts *stts_entries;
930
    uint32_t entries = -1;
931
    uint32_t atom_size;
932
    int i;
933

    
934
    if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
935
        stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
936
        stts_entries[0].count = track->sampleCount;
937
        stts_entries[0].duration = 1;
938
        entries = 1;
939
    } else {
940
        stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
941
        for (i=0; i<track->entry; i++) {
942
            int64_t duration = i + 1 == track->entry ?
943
                track->trackDuration - track->cluster[i].dts + track->cluster[0].dts : /* readjusting */
944
                track->cluster[i+1].dts - track->cluster[i].dts;
945
            if (i && duration == stts_entries[entries].duration) {
946
                stts_entries[entries].count++; /* compress */
947
            } else {
948
                entries++;
949
                stts_entries[entries].duration = duration;
950
                stts_entries[entries].count = 1;
951
            }
952
        }
953
        entries++; /* last one */
954
    }
955
    atom_size = 16 + (entries * 8);
956
    avio_wb32(pb, atom_size); /* size */
957
    ffio_wfourcc(pb, "stts");
958
    avio_wb32(pb, 0); /* version & flags */
959
    avio_wb32(pb, entries); /* entry count */
960
    for (i=0; i<entries; i++) {
961
        avio_wb32(pb, stts_entries[i].count);
962
        avio_wb32(pb, stts_entries[i].duration);
963
    }
964
    av_free(stts_entries);
965
    return atom_size;
966
}
967

    
968
static int mov_write_dref_tag(AVIOContext *pb)
969
{
970
    avio_wb32(pb, 28); /* size */
971
    ffio_wfourcc(pb, "dref");
972
    avio_wb32(pb, 0); /* version & flags */
973
    avio_wb32(pb, 1); /* entry count */
974

    
975
    avio_wb32(pb, 0xc); /* size */
976
    ffio_wfourcc(pb, "url ");
977
    avio_wb32(pb, 1); /* version & flags */
978

    
979
    return 28;
980
}
981

    
982
static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)
983
{
984
    int64_t pos = avio_tell(pb);
985
    avio_wb32(pb, 0); /* size */
986
    ffio_wfourcc(pb, "stbl");
987
    mov_write_stsd_tag(pb, track);
988
    mov_write_stts_tag(pb, track);
989
    if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
990
         track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
991
        track->hasKeyframes && track->hasKeyframes < track->entry)
992
        mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
993
    if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
994
        mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
995
    if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
996
        track->flags & MOV_TRACK_CTTS)
997
        mov_write_ctts_tag(pb, track);
998
    mov_write_stsc_tag(pb, track);
999
    mov_write_stsz_tag(pb, track);
1000
    mov_write_stco_tag(pb, track);
1001
    return updateSize(pb, pos);
1002
}
1003

    
1004
static int mov_write_dinf_tag(AVIOContext *pb)
1005
{
1006
    int64_t pos = avio_tell(pb);
1007
    avio_wb32(pb, 0); /* size */
1008
    ffio_wfourcc(pb, "dinf");
1009
    mov_write_dref_tag(pb);
1010
    return updateSize(pb, pos);
1011
}
1012

    
1013
static int mov_write_nmhd_tag(AVIOContext *pb)
1014
{
1015
    avio_wb32(pb, 12);
1016
    ffio_wfourcc(pb, "nmhd");
1017
    avio_wb32(pb, 0);
1018
    return 12;
1019
}
1020

    
1021
static int mov_write_gmhd_tag(AVIOContext *pb)
1022
{
1023
    avio_wb32(pb, 0x20);   /* size */
1024
    ffio_wfourcc(pb, "gmhd");
1025
    avio_wb32(pb, 0x18);   /* gmin size */
1026
    ffio_wfourcc(pb, "gmin");/* generic media info */
1027
    avio_wb32(pb, 0);      /* version & flags */
1028
    avio_wb16(pb, 0x40);   /* graphics mode = */
1029
    avio_wb16(pb, 0x8000); /* opColor (r?) */
1030
    avio_wb16(pb, 0x8000); /* opColor (g?) */
1031
    avio_wb16(pb, 0x8000); /* opColor (b?) */
1032
    avio_wb16(pb, 0);      /* balance */
1033
    avio_wb16(pb, 0);      /* reserved */
1034
    return 0x20;
1035
}
1036

    
1037
static int mov_write_smhd_tag(AVIOContext *pb)
1038
{
1039
    avio_wb32(pb, 16); /* size */
1040
    ffio_wfourcc(pb, "smhd");
1041
    avio_wb32(pb, 0); /* version & flags */
1042
    avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
1043
    avio_wb16(pb, 0); /* reserved */
1044
    return 16;
1045
}
1046

    
1047
static int mov_write_vmhd_tag(AVIOContext *pb)
1048
{
1049
    avio_wb32(pb, 0x14); /* size (always 0x14) */
1050
    ffio_wfourcc(pb, "vmhd");
1051
    avio_wb32(pb, 0x01); /* version & flags */
1052
    avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
1053
    return 0x14;
1054
}
1055

    
1056
static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
1057
{
1058
    const char *hdlr, *descr = NULL, *hdlr_type = NULL;
1059
    int64_t pos = avio_tell(pb);
1060

    
1061
    if (!track) { /* no media --> data handler */
1062
        hdlr = "dhlr";
1063
        hdlr_type = "url ";
1064
        descr = "DataHandler";
1065
    } else {
1066
        hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
1067
        if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
1068
            hdlr_type = "vide";
1069
            descr = "VideoHandler";
1070
        } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
1071
            hdlr_type = "soun";
1072
            descr = "SoundHandler";
1073
        } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1074
            if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
1075
            else                                      hdlr_type = "text";
1076
            descr = "SubtitleHandler";
1077
        } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
1078
            hdlr_type = "hint";
1079
            descr = "HintHandler";
1080
        }
1081
    }
1082

    
1083
    avio_wb32(pb, 0); /* size */
1084
    ffio_wfourcc(pb, "hdlr");
1085
    avio_wb32(pb, 0); /* Version & flags */
1086
    avio_write(pb, hdlr, 4); /* handler */
1087
    ffio_wfourcc(pb, hdlr_type); /* handler type */
1088
    avio_wb32(pb ,0); /* reserved */
1089
    avio_wb32(pb ,0); /* reserved */
1090
    avio_wb32(pb ,0); /* reserved */
1091
    if (!track || track->mode == MODE_MOV)
1092
        avio_w8(pb, strlen(descr)); /* pascal string */
1093
    avio_write(pb, descr, strlen(descr)); /* handler description */
1094
    if (track && track->mode != MODE_MOV)
1095
        avio_w8(pb, 0); /* c string */
1096
    return updateSize(pb, pos);
1097
}
1098

    
1099
static int mov_write_hmhd_tag(AVIOContext *pb)
1100
{
1101
    /* This atom must be present, but leaving the values at zero
1102
     * seems harmless. */
1103
    avio_wb32(pb, 28); /* size */
1104
    ffio_wfourcc(pb, "hmhd");
1105
    avio_wb32(pb, 0); /* version, flags */
1106
    avio_wb16(pb, 0); /* maxPDUsize */
1107
    avio_wb16(pb, 0); /* avgPDUsize */
1108
    avio_wb32(pb, 0); /* maxbitrate */
1109
    avio_wb32(pb, 0); /* avgbitrate */
1110
    avio_wb32(pb, 0); /* reserved */
1111
    return 28;
1112
}
1113

    
1114
static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
1115
{
1116
    int64_t pos = avio_tell(pb);
1117
    avio_wb32(pb, 0); /* size */
1118
    ffio_wfourcc(pb, "minf");
1119
    if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
1120
        mov_write_vmhd_tag(pb);
1121
    else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1122
        mov_write_smhd_tag(pb);
1123
    else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1124
        if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);
1125
        else                                      mov_write_nmhd_tag(pb);
1126
    } else if (track->tag == MKTAG('r','t','p',' ')) {
1127
        mov_write_hmhd_tag(pb);
1128
    }
1129
    if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
1130
        mov_write_hdlr_tag(pb, NULL);
1131
    mov_write_dinf_tag(pb);
1132
    mov_write_stbl_tag(pb, track);
1133
    return updateSize(pb, pos);
1134
}
1135

    
1136
static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)
1137
{
1138
    int version = track->trackDuration < INT32_MAX ? 0 : 1;
1139

    
1140
    (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */
1141
    ffio_wfourcc(pb, "mdhd");
1142
    avio_w8(pb, version);
1143
    avio_wb24(pb, 0); /* flags */
1144
    if (version == 1) {
1145
        avio_wb64(pb, track->time);
1146
        avio_wb64(pb, track->time);
1147
    } else {
1148
        avio_wb32(pb, track->time); /* creation time */
1149
        avio_wb32(pb, track->time); /* modification time */
1150
    }
1151
    avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
1152
    (version == 1) ? avio_wb64(pb, track->trackDuration) : avio_wb32(pb, track->trackDuration); /* duration */
1153
    avio_wb16(pb, track->language); /* language */
1154
    avio_wb16(pb, 0); /* reserved (quality) */
1155

    
1156
    if(version!=0 && track->mode == MODE_MOV){
1157
        av_log(NULL, AV_LOG_ERROR,
1158
            "FATAL error, file duration too long for timebase, this file will not be\n"
1159
            "playable with quicktime. Choose a different timebase or a different\n"
1160
            "container format\n");
1161
    }
1162

    
1163
    return 32;
1164
}
1165

    
1166
static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)
1167
{
1168
    int64_t pos = avio_tell(pb);
1169
    avio_wb32(pb, 0); /* size */
1170
    ffio_wfourcc(pb, "mdia");
1171
    mov_write_mdhd_tag(pb, track);
1172
    mov_write_hdlr_tag(pb, track);
1173
    mov_write_minf_tag(pb, track);
1174
    return updateSize(pb, pos);
1175
}
1176

    
1177
static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1178
{
1179
    int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1180
                                      track->timescale, AV_ROUND_UP);
1181
    int version = duration < INT32_MAX ? 0 : 1;
1182

    
1183
    (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
1184
    ffio_wfourcc(pb, "tkhd");
1185
    avio_w8(pb, version);
1186
    avio_wb24(pb, 0xf); /* flags (track enabled) */
1187
    if (version == 1) {
1188
        avio_wb64(pb, track->time);
1189
        avio_wb64(pb, track->time);
1190
    } else {
1191
        avio_wb32(pb, track->time); /* creation time */
1192
        avio_wb32(pb, track->time); /* modification time */
1193
    }
1194
    avio_wb32(pb, track->trackID); /* track-id */
1195
    avio_wb32(pb, 0); /* reserved */
1196
    (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);
1197

    
1198
    avio_wb32(pb, 0); /* reserved */
1199
    avio_wb32(pb, 0); /* reserved */
1200
    avio_wb32(pb, 0x0); /* reserved (Layer & Alternate group) */
1201
    /* Volume, only for audio */
1202
    if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
1203
        avio_wb16(pb, 0x0100);
1204
    else
1205
        avio_wb16(pb, 0);
1206
    avio_wb16(pb, 0); /* reserved */
1207

    
1208
    /* Matrix structure */
1209
    avio_wb32(pb, 0x00010000); /* reserved */
1210
    avio_wb32(pb, 0x0); /* reserved */
1211
    avio_wb32(pb, 0x0); /* reserved */
1212
    avio_wb32(pb, 0x0); /* reserved */
1213
    avio_wb32(pb, 0x00010000); /* reserved */
1214
    avio_wb32(pb, 0x0); /* reserved */
1215
    avio_wb32(pb, 0x0); /* reserved */
1216
    avio_wb32(pb, 0x0); /* reserved */
1217
    avio_wb32(pb, 0x40000000); /* reserved */
1218

    
1219
    /* Track width and height, for visual only */
1220
    if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
1221
              track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {
1222
        if(track->mode == MODE_MOV) {
1223
            avio_wb32(pb, track->enc->width << 16);
1224
            avio_wb32(pb, track->height << 16);
1225
        } else {
1226
            double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1227
            if(!sample_aspect_ratio || track->height != track->enc->height)
1228
                sample_aspect_ratio = 1;
1229
            avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000);
1230
            avio_wb32(pb, track->height*0x10000);
1231
        }
1232
    }
1233
    else {
1234
        avio_wb32(pb, 0);
1235
        avio_wb32(pb, 0);
1236
    }
1237
    return 0x5c;
1238
}
1239

    
1240
static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)
1241
{
1242
    int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
1243
                               track->enc->sample_aspect_ratio.den);
1244

    
1245
    int64_t pos = avio_tell(pb);
1246

    
1247
    avio_wb32(pb, 0); /* size */
1248
    ffio_wfourcc(pb, "tapt");
1249

    
1250
    avio_wb32(pb, 20);
1251
    ffio_wfourcc(pb, "clef");
1252
    avio_wb32(pb, 0);
1253
    avio_wb32(pb, width << 16);
1254
    avio_wb32(pb, track->enc->height << 16);
1255

    
1256
    avio_wb32(pb, 20);
1257
    ffio_wfourcc(pb, "enof");
1258
    avio_wb32(pb, 0);
1259
    avio_wb32(pb, track->enc->width << 16);
1260
    avio_wb32(pb, track->enc->height << 16);
1261

    
1262
    return updateSize(pb, pos);
1263
};
1264

    
1265
// This box seems important for the psp playback ... without it the movie seems to hang
1266
static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
1267
{
1268
    avio_wb32(pb, 0x24); /* size  */
1269
    ffio_wfourcc(pb, "edts");
1270
    avio_wb32(pb, 0x1c); /* size  */
1271
    ffio_wfourcc(pb, "elst");
1272
    avio_wb32(pb, 0x0);
1273
    avio_wb32(pb, 0x1);
1274

    
1275
    /* duration   ... doesn't seem to effect psp */
1276
    avio_wb32(pb, av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
1277
                                track->timescale, AV_ROUND_UP));
1278

    
1279
    avio_wb32(pb, track->cluster[0].cts); /* first pts is cts since dts is 0 */
1280
    avio_wb32(pb, 0x00010000);
1281
    return 0x24;
1282
}
1283

    
1284
static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)
1285
{
1286
    avio_wb32(pb, 20);   // size
1287
    ffio_wfourcc(pb, "tref");
1288
    avio_wb32(pb, 12);   // size (subatom)
1289
    avio_wl32(pb, track->tref_tag);
1290
    avio_wb32(pb, track->tref_id);
1291
    return 20;
1292
}
1293

    
1294
// goes at the end of each track!  ... Critical for PSP playback ("Incompatible data" without it)
1295
static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)
1296
{
1297
    avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */
1298
    ffio_wfourcc(pb, "uuid");
1299
    ffio_wfourcc(pb, "USMT");
1300
    avio_wb32(pb, 0x21d24fce);
1301
    avio_wb32(pb, 0xbb88695c);
1302
    avio_wb32(pb, 0xfac9c740);
1303
    avio_wb32(pb, 0x1c);     // another size here!
1304
    ffio_wfourcc(pb, "MTDT");
1305
    avio_wb32(pb, 0x00010012);
1306
    avio_wb32(pb, 0x0a);
1307
    avio_wb32(pb, 0x55c40000);
1308
    avio_wb32(pb, 0x1);
1309
    avio_wb32(pb, 0x0);
1310
    return 0x34;
1311
}
1312

    
1313
static int mov_write_udta_sdp(AVIOContext *pb, AVCodecContext *ctx, int index)
1314
{
1315
    char buf[1000] = "";
1316
    int len;
1317

    
1318
    ff_sdp_write_media(buf, sizeof(buf), ctx, NULL, NULL, 0, 0);
1319
    av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", index);
1320
    len = strlen(buf);
1321

    
1322
    avio_wb32(pb, len + 24);
1323
    ffio_wfourcc(pb, "udta");
1324
    avio_wb32(pb, len + 16);
1325
    ffio_wfourcc(pb, "hnti");
1326
    avio_wb32(pb, len + 8);
1327
    ffio_wfourcc(pb, "sdp ");
1328
    avio_write(pb, buf, len);
1329
    return len + 24;
1330
}
1331

    
1332
static int mov_write_trak_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
1333
{
1334
    int64_t pos = avio_tell(pb);
1335
    avio_wb32(pb, 0); /* size */
1336
    ffio_wfourcc(pb, "trak");
1337
    mov_write_tkhd_tag(pb, track, st);
1338
    if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS)
1339
        mov_write_edts_tag(pb, track);  // PSP Movies require edts box
1340
    if (track->tref_tag)
1341
        mov_write_tref_tag(pb, track);
1342
    mov_write_mdia_tag(pb, track);
1343
    if (track->mode == MODE_PSP)
1344
        mov_write_uuid_tag_psp(pb,track);  // PSP Movies require this uuid box
1345
    if (track->tag == MKTAG('r','t','p',' '))
1346
        mov_write_udta_sdp(pb, track->rtp_ctx->streams[0]->codec, track->trackID);
1347
    if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
1348
        double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
1349
        if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
1350
            mov_write_tapt_tag(pb, track);
1351
    };
1352
    return updateSize(pb, pos);
1353
}
1354

    
1355
#if 0
1356
/* TODO: Not sorted out, but not necessary either */
1357
static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
1358
{
1359
    avio_wb32(pb, 0x15); /* size */
1360
    ffio_wfourcc(pb, "iods");
1361
    avio_wb32(pb, 0);    /* version & flags */
1362
    avio_wb16(pb, 0x1007);
1363
    avio_w8(pb, 0);
1364
    avio_wb16(pb, 0x4fff);
1365
    avio_wb16(pb, 0xfffe);
1366
    avio_wb16(pb, 0x01ff);
1367
    return 0x15;
1368
}
1369
#endif
1370

    
1371
static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)
1372
{
1373
    int maxTrackID = 1, i;
1374
    int64_t maxTrackLenTemp, maxTrackLen = 0;
1375
    int version;
1376

    
1377
    for (i=0; i<mov->nb_streams; i++) {
1378
        if(mov->tracks[i].entry > 0) {
1379
            maxTrackLenTemp = av_rescale_rnd(mov->tracks[i].trackDuration,
1380
                                             MOV_TIMESCALE,
1381
                                             mov->tracks[i].timescale,
1382
                                             AV_ROUND_UP);
1383
            if(maxTrackLen < maxTrackLenTemp)
1384
                maxTrackLen = maxTrackLenTemp;
1385
            if(maxTrackID < mov->tracks[i].trackID)
1386
                maxTrackID = mov->tracks[i].trackID;
1387
        }
1388
    }
1389

    
1390
    version = maxTrackLen < UINT32_MAX ? 0 : 1;
1391
    (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */
1392
    ffio_wfourcc(pb, "mvhd");
1393
    avio_w8(pb, version);
1394
    avio_wb24(pb, 0); /* flags */
1395
    if (version == 1) {
1396
        avio_wb64(pb, mov->time);
1397
        avio_wb64(pb, mov->time);
1398
    } else {
1399
        avio_wb32(pb, mov->time); /* creation time */
1400
        avio_wb32(pb, mov->time); /* modification time */
1401
    }
1402
    avio_wb32(pb, MOV_TIMESCALE);
1403
    (version == 1) ? avio_wb64(pb, maxTrackLen) : avio_wb32(pb, maxTrackLen); /* duration of longest track */
1404

    
1405
    avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
1406
    avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
1407
    avio_wb16(pb, 0); /* reserved */
1408
    avio_wb32(pb, 0); /* reserved */
1409
    avio_wb32(pb, 0); /* reserved */
1410

    
1411
    /* Matrix structure */
1412
    avio_wb32(pb, 0x00010000); /* reserved */
1413
    avio_wb32(pb, 0x0); /* reserved */
1414
    avio_wb32(pb, 0x0); /* reserved */
1415
    avio_wb32(pb, 0x0); /* reserved */
1416
    avio_wb32(pb, 0x00010000); /* reserved */
1417
    avio_wb32(pb, 0x0); /* reserved */
1418
    avio_wb32(pb, 0x0); /* reserved */
1419
    avio_wb32(pb, 0x0); /* reserved */
1420
    avio_wb32(pb, 0x40000000); /* reserved */
1421

    
1422
    avio_wb32(pb, 0); /* reserved (preview time) */
1423
    avio_wb32(pb, 0); /* reserved (preview duration) */
1424
    avio_wb32(pb, 0); /* reserved (poster time) */
1425
    avio_wb32(pb, 0); /* reserved (selection time) */
1426
    avio_wb32(pb, 0); /* reserved (selection duration) */
1427
    avio_wb32(pb, 0); /* reserved (current time) */
1428
    avio_wb32(pb, maxTrackID+1); /* Next track id */
1429
    return 0x6c;
1430
}
1431

    
1432
static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,
1433
                                     AVFormatContext *s)
1434
{
1435
    avio_wb32(pb, 33); /* size */
1436
    ffio_wfourcc(pb, "hdlr");
1437
    avio_wb32(pb, 0);
1438
    avio_wb32(pb, 0);
1439
    ffio_wfourcc(pb, "mdir");
1440
    ffio_wfourcc(pb, "appl");
1441
    avio_wb32(pb, 0);
1442
    avio_wb32(pb, 0);
1443
    avio_w8(pb, 0);
1444
    return 33;
1445
}
1446

    
1447
/* helper function to write a data tag with the specified string as data */
1448
static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)
1449
{
1450
    if(long_style){
1451
        int size = 16 + strlen(data);
1452
        avio_wb32(pb, size); /* size */
1453
        ffio_wfourcc(pb, "data");
1454
        avio_wb32(pb, 1);
1455
        avio_wb32(pb, 0);
1456
        avio_write(pb, data, strlen(data));
1457
        return size;
1458
    }else{
1459
        if (!lang)
1460
            lang = ff_mov_iso639_to_lang("und", 1);
1461
        avio_wb16(pb, strlen(data)); /* string length */
1462
        avio_wb16(pb, lang);
1463
        avio_write(pb, data, strlen(data));
1464
        return strlen(data) + 4;
1465
    }
1466
}
1467

    
1468
static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){
1469
    int size = 0;
1470
    if (value && value[0]) {
1471
        int64_t pos = avio_tell(pb);
1472
        avio_wb32(pb, 0); /* size */
1473
        ffio_wfourcc(pb, name);
1474
        mov_write_string_data_tag(pb, value, lang, long_style);
1475
        size= updateSize(pb, pos);
1476
    }
1477
    return size;
1478
}
1479

    
1480
static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,
1481
                                     const char *name, const char *tag,
1482
                                     int long_style)
1483
{
1484
    int l, lang = 0, len, len2;
1485
    AVMetadataTag *t, *t2 = NULL;
1486
    char tag2[16];
1487

    
1488
    if (!(t = av_metadata_get(s->metadata, tag, NULL, 0)))
1489
        return 0;
1490

    
1491
    len = strlen(t->key);
1492
    snprintf(tag2, sizeof(tag2), "%s-", tag);
1493
    while ((t2 = av_metadata_get(s->metadata, tag2, t2, AV_METADATA_IGNORE_SUFFIX))) {
1494
        len2 = strlen(t2->key);
1495
        if (len2 == len+4 && !strcmp(t->value, t2->value)
1496
            && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {
1497
            lang = l;
1498
            break;
1499
        }
1500
    }
1501
    return mov_write_string_tag(pb, name, t->value, lang, long_style);
1502
}
1503

    
1504
/* iTunes track number */
1505
static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,
1506
                              AVFormatContext *s)
1507
{
1508
    AVMetadataTag *t = av_metadata_get(s->metadata, "track", NULL, 0);
1509
    int size = 0, track = t ? atoi(t->value) : 0;
1510
    if (track) {
1511
        avio_wb32(pb, 32); /* size */
1512
        ffio_wfourcc(pb, "trkn");
1513
            avio_wb32(pb, 24); /* size */
1514
            ffio_wfourcc(pb, "data");
1515
            avio_wb32(pb, 0);        // 8 bytes empty
1516
            avio_wb32(pb, 0);
1517
            avio_wb16(pb, 0);        // empty
1518
            avio_wb16(pb, track);    // track number
1519
            avio_wb16(pb, 0);        // total track number
1520
            avio_wb16(pb, 0);        // empty
1521
        size = 32;
1522
    }
1523
    return size;
1524
}
1525

    
1526
/* iTunes meta data list */
1527
static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,
1528
                              AVFormatContext *s)
1529
{
1530
    int64_t pos = avio_tell(pb);
1531
    avio_wb32(pb, 0); /* size */
1532
    ffio_wfourcc(pb, "ilst");
1533
    mov_write_string_metadata(s, pb, "\251nam", "title"    , 1);
1534
    mov_write_string_metadata(s, pb, "\251ART", "artist"   , 1);
1535
    mov_write_string_metadata(s, pb, "aART", "album_artist", 1);
1536
    mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);
1537
    mov_write_string_metadata(s, pb, "\251alb", "album"    , 1);
1538
    mov_write_string_metadata(s, pb, "\251day", "date"     , 1);
1539
    mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);
1540
    mov_write_string_metadata(s, pb, "\251cmt", "comment"  , 1);
1541
    mov_write_string_metadata(s, pb, "\251gen", "genre"    , 1);
1542
    mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);
1543
    mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
1544
    mov_write_string_metadata(s, pb, "\251lyr", "lyrics"   , 1);
1545
    mov_write_string_metadata(s, pb, "desc",    "description",1);
1546
    mov_write_string_metadata(s, pb, "ldes",    "synopsis" , 1);
1547
    mov_write_string_metadata(s, pb, "tvsh",    "show"     , 1);
1548
    mov_write_string_metadata(s, pb, "tven",    "episode_id",1);
1549
    mov_write_string_metadata(s, pb, "tvnn",    "network"  , 1);
1550
    mov_write_trkn_tag(pb, mov, s);
1551
    return updateSize(pb, pos);
1552
}
1553

    
1554
/* iTunes meta data tag */
1555
static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,
1556
                              AVFormatContext *s)
1557
{
1558
    int size = 0;
1559
    int64_t pos = avio_tell(pb);
1560
    avio_wb32(pb, 0); /* size */
1561
    ffio_wfourcc(pb, "meta");
1562
    avio_wb32(pb, 0);
1563
    mov_write_itunes_hdlr_tag(pb, mov, s);
1564
    mov_write_ilst_tag(pb, mov, s);
1565
    size = updateSize(pb, pos);
1566
    return size;
1567
}
1568

    
1569
static int utf8len(const uint8_t *b)
1570
{
1571
    int len=0;
1572
    int val;
1573
    while(*b){
1574
        GET_UTF8(val, *b++, return -1;)
1575
        len++;
1576
    }
1577
    return len;
1578
}
1579

    
1580
static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)
1581
{
1582
    int val;
1583
    while(*b){
1584
        GET_UTF8(val, *b++, return -1;)
1585
        avio_wb16(pb, val);
1586
    }
1587
    avio_wb16(pb, 0x00);
1588
    return 0;
1589
}
1590

    
1591
static uint16_t language_code(const char *str)
1592
{
1593
    return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);
1594
}
1595

    
1596
static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,
1597
                                  const char *tag, const char *str)
1598
{
1599
    int64_t pos = avio_tell(pb);
1600
    AVMetadataTag *t = av_metadata_get(s->metadata, str, NULL, 0);
1601
    if (!t || !utf8len(t->value))
1602
        return 0;
1603
    avio_wb32(pb, 0);   /* size */
1604
    ffio_wfourcc(pb, tag); /* type */
1605
    avio_wb32(pb, 0);   /* version + flags */
1606
    if (!strcmp(tag, "yrrc"))
1607
        avio_wb16(pb, atoi(t->value));
1608
    else {
1609
        avio_wb16(pb, language_code("eng")); /* language */
1610
        avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */
1611
        if (!strcmp(tag, "albm") &&
1612
            (t = av_metadata_get(s->metadata, "track", NULL, 0)))
1613
            avio_w8(pb, atoi(t->value));
1614
    }
1615
    return updateSize(pb, pos);
1616
}
1617

    
1618
static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)
1619
{
1620
    int64_t pos = avio_tell(pb);
1621
    int i, nb_chapters = FFMIN(s->nb_chapters, 255);
1622

    
1623
    avio_wb32(pb, 0);            // size
1624
    ffio_wfourcc(pb, "chpl");
1625
    avio_wb32(pb, 0x01000000);   // version + flags
1626
    avio_wb32(pb, 0);            // unknown
1627
    avio_w8(pb, nb_chapters);
1628

    
1629
    for (i = 0; i < nb_chapters; i++) {
1630
        AVChapter *c = s->chapters[i];
1631
        AVMetadataTag *t;
1632
        avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));
1633

    
1634
        if ((t = av_metadata_get(c->metadata, "title", NULL, 0))) {
1635
            int len = FFMIN(strlen(t->value), 255);
1636
            avio_w8(pb, len);
1637
            avio_write(pb, t->value, len);
1638
        } else
1639
            avio_w8(pb, 0);
1640
    }
1641
    return updateSize(pb, pos);
1642
}
1643

    
1644
static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,
1645
                              AVFormatContext *s)
1646
{
1647
    AVIOContext *pb_buf;
1648
    int i, ret, size;
1649
    uint8_t *buf;
1650

    
1651
    for (i = 0; i < s->nb_streams; i++)
1652
        if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {
1653
            return 0;
1654
        }
1655

    
1656
    ret = url_open_dyn_buf(&pb_buf);
1657
    if(ret < 0)
1658
        return ret;
1659

    
1660
        if (mov->mode & MODE_3GP) {
1661
            mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");
1662
            mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
1663
            mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
1664
            mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
1665
            mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
1666
            mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
1667
            mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");
1668
            mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");
1669
        } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4
1670
            mov_write_string_metadata(s, pb_buf, "\251ART", "artist"     , 0);
1671
            mov_write_string_metadata(s, pb_buf, "\251nam", "title"      , 0);
1672
            mov_write_string_metadata(s, pb_buf, "\251aut", "author"     , 0);
1673
            mov_write_string_metadata(s, pb_buf, "\251alb", "album"      , 0);
1674
            mov_write_string_metadata(s, pb_buf, "\251day", "date"       , 0);
1675
            mov_write_string_metadata(s, pb_buf, "\251swr", "encoder"    , 0);
1676
            mov_write_string_metadata(s, pb_buf, "\251des", "comment"    , 0);
1677
            mov_write_string_metadata(s, pb_buf, "\251gen", "genre"      , 0);
1678
            mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright"  , 0);
1679
        } else {
1680
            /* iTunes meta data */
1681
            mov_write_meta_tag(pb_buf, mov, s);
1682
        }
1683

    
1684
        if (s->nb_chapters)
1685
            mov_write_chpl_tag(pb_buf, s);
1686

    
1687
    if ((size = url_close_dyn_buf(pb_buf, &buf)) > 0) {
1688
        avio_wb32(pb, size+8);
1689
        ffio_wfourcc(pb, "udta");
1690
        avio_write(pb, buf, size);
1691
    }
1692
    av_free(buf);
1693

    
1694
    return 0;
1695
}
1696

    
1697
static void mov_write_psp_udta_tag(AVIOContext *pb,
1698
                                  const char *str, const char *lang, int type)
1699
{
1700
    int len = utf8len(str)+1;
1701
    if(len<=0)
1702
        return;
1703
    avio_wb16(pb, len*2+10);            /* size */
1704
    avio_wb32(pb, type);                /* type */
1705
    avio_wb16(pb, language_code(lang)); /* language */
1706
    avio_wb16(pb, 0x01);                /* ? */
1707
    ascii_to_wc(pb, str);
1708
}
1709

    
1710
static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
1711
{
1712
    AVMetadataTag *title = av_metadata_get(s->metadata, "title", NULL, 0);
1713
    int64_t pos, pos2;
1714

    
1715
    if (title) {
1716
        pos = avio_tell(pb);
1717
        avio_wb32(pb, 0); /* size placeholder*/
1718
        ffio_wfourcc(pb, "uuid");
1719
        ffio_wfourcc(pb, "USMT");
1720
        avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1721
        avio_wb32(pb, 0xbb88695c);
1722
        avio_wb32(pb, 0xfac9c740);
1723

    
1724
        pos2 = avio_tell(pb);
1725
        avio_wb32(pb, 0); /* size placeholder*/
1726
        ffio_wfourcc(pb, "MTDT");
1727
        avio_wb16(pb, 4);
1728

    
1729
        // ?
1730
        avio_wb16(pb, 0x0C);                 /* size */
1731
        avio_wb32(pb, 0x0B);                 /* type */
1732
        avio_wb16(pb, language_code("und")); /* language */
1733
        avio_wb16(pb, 0x0);                  /* ? */
1734
        avio_wb16(pb, 0x021C);               /* data */
1735

    
1736
        mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT,      "eng", 0x04);
1737
        mov_write_psp_udta_tag(pb, title->value,          "eng", 0x01);
1738
//        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);
1739
        mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
1740

    
1741
        updateSize(pb, pos2);
1742
        return updateSize(pb, pos);
1743
    }
1744

    
1745
    return 0;
1746
}
1747

    
1748
static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
1749
                              AVFormatContext *s)
1750
{
1751
    int i;
1752
    int64_t pos = avio_tell(pb);
1753
    avio_wb32(pb, 0); /* size placeholder*/
1754
    ffio_wfourcc(pb, "moov");
1755

    
1756
    for (i=0; i<mov->nb_streams; i++) {
1757
        if(mov->tracks[i].entry <= 0) continue;
1758

    
1759
        mov->tracks[i].time = mov->time;
1760
        mov->tracks[i].trackID = i+1;
1761
    }
1762

    
1763
    if (mov->chapter_track)
1764
        for (i=0; i<s->nb_streams; i++) {
1765
            mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
1766
            mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].trackID;
1767
        }
1768
    for (i = 0; i < mov->nb_streams; i++) {
1769
        if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
1770
            mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
1771
            mov->tracks[i].tref_id =
1772
                mov->tracks[mov->tracks[i].src_track].trackID;
1773
        }
1774
    }
1775

    
1776
    mov_write_mvhd_tag(pb, mov);
1777
    //mov_write_iods_tag(pb, mov);
1778
    for (i=0; i<mov->nb_streams; i++) {
1779
        if(mov->tracks[i].entry > 0) {
1780
            mov_write_trak_tag(pb, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
1781
        }
1782
    }
1783

    
1784
    if (mov->mode == MODE_PSP)
1785
        mov_write_uuidusmt_tag(pb, s);
1786
    else
1787
        mov_write_udta_tag(pb, mov, s);
1788

    
1789
    return updateSize(pb, pos);
1790
}
1791

    
1792
static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)
1793
{
1794
    avio_wb32(pb, 8);    // placeholder for extended size field (64 bit)
1795
    ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free");
1796

    
1797
    mov->mdat_pos = avio_tell(pb);
1798
    avio_wb32(pb, 0); /* size placeholder*/
1799
    ffio_wfourcc(pb, "mdat");
1800
    return 0;
1801
}
1802

    
1803
/* TODO: This needs to be more general */
1804
static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)
1805
{
1806
    MOVMuxContext *mov = s->priv_data;
1807
    int64_t pos = avio_tell(pb);
1808
    int has_h264 = 0, has_video = 0;
1809
    int minor = 0x200;
1810
    int i;
1811

    
1812
    for (i = 0; i < s->nb_streams; i++) {
1813
        AVStream *st = s->streams[i];
1814
        if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1815
            has_video = 1;
1816
        if (st->codec->codec_id == CODEC_ID_H264)
1817
            has_h264 = 1;
1818
    }
1819

    
1820
    avio_wb32(pb, 0); /* size */
1821
    ffio_wfourcc(pb, "ftyp");
1822

    
1823
    if (mov->mode == MODE_3GP) {
1824
        ffio_wfourcc(pb, has_h264 ? "3gp6"  : "3gp4");
1825
        minor =     has_h264 ?   0x100 :   0x200;
1826
    } else if (mov->mode & MODE_3G2) {
1827
        ffio_wfourcc(pb, has_h264 ? "3g2b"  : "3g2a");
1828
        minor =     has_h264 ? 0x20000 : 0x10000;
1829
    }else if (mov->mode == MODE_PSP)
1830
        ffio_wfourcc(pb, "MSNV");
1831
    else if (mov->mode == MODE_MP4)
1832
        ffio_wfourcc(pb, "isom");
1833
    else if (mov->mode == MODE_IPOD)
1834
        ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");
1835
    else
1836
        ffio_wfourcc(pb, "qt  ");
1837

    
1838
    avio_wb32(pb, minor);
1839

    
1840
    if(mov->mode == MODE_MOV)
1841
        ffio_wfourcc(pb, "qt  ");
1842
    else{
1843
        ffio_wfourcc(pb, "isom");
1844
        ffio_wfourcc(pb, "iso2");
1845
        if(has_h264)
1846
            ffio_wfourcc(pb, "avc1");
1847
    }
1848

    
1849
    if (mov->mode == MODE_3GP)
1850
        ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");
1851
    else if (mov->mode & MODE_3G2)
1852
        ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");
1853
    else if (mov->mode == MODE_PSP)
1854
        ffio_wfourcc(pb, "MSNV");
1855
    else if (mov->mode == MODE_MP4)
1856
        ffio_wfourcc(pb, "mp41");
1857
    return updateSize(pb, pos);
1858
}
1859

    
1860
static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)
1861
{
1862
    AVCodecContext *VideoCodec = s->streams[0]->codec;
1863
    AVCodecContext *AudioCodec = s->streams[1]->codec;
1864
    int AudioRate = AudioCodec->sample_rate;
1865
    int FrameRate = ((VideoCodec->time_base.den) * (0x10000))/ (VideoCodec->time_base.num);
1866
    int audio_kbitrate= AudioCodec->bit_rate / 1000;
1867
    int video_kbitrate= FFMIN(VideoCodec->bit_rate / 1000, 800 - audio_kbitrate);
1868

    
1869
    avio_wb32(pb, 0x94); /* size */
1870
    ffio_wfourcc(pb, "uuid");
1871
    ffio_wfourcc(pb, "PROF");
1872

    
1873
    avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
1874
    avio_wb32(pb, 0xbb88695c);
1875
    avio_wb32(pb, 0xfac9c740);
1876

    
1877
    avio_wb32(pb, 0x0);  /* ? */
1878
    avio_wb32(pb, 0x3);  /* 3 sections ? */
1879

    
1880
    avio_wb32(pb, 0x14); /* size */
1881
    ffio_wfourcc(pb, "FPRF");
1882
    avio_wb32(pb, 0x0);  /* ? */
1883
    avio_wb32(pb, 0x0);  /* ? */
1884
    avio_wb32(pb, 0x0);  /* ? */
1885

    
1886
    avio_wb32(pb, 0x2c);  /* size */
1887
    ffio_wfourcc(pb, "APRF");/* audio */
1888
    avio_wb32(pb, 0x0);
1889
    avio_wb32(pb, 0x2);   /* TrackID */
1890
    ffio_wfourcc(pb, "mp4a");
1891
    avio_wb32(pb, 0x20f);
1892
    avio_wb32(pb, 0x0);
1893
    avio_wb32(pb, audio_kbitrate);
1894
    avio_wb32(pb, audio_kbitrate);
1895
    avio_wb32(pb, AudioRate);
1896
    avio_wb32(pb, AudioCodec->channels);
1897

    
1898
    avio_wb32(pb, 0x34);  /* size */
1899
    ffio_wfourcc(pb, "VPRF");   /* video */
1900
    avio_wb32(pb, 0x0);
1901
    avio_wb32(pb, 0x1);    /* TrackID */
1902
    if (VideoCodec->codec_id == CODEC_ID_H264) {
1903
        ffio_wfourcc(pb, "avc1");
1904
        avio_wb16(pb, 0x014D);
1905
        avio_wb16(pb, 0x0015);
1906
    } else {
1907
        ffio_wfourcc(pb, "mp4v");
1908
        avio_wb16(pb, 0x0000);
1909
        avio_wb16(pb, 0x0103);
1910
    }
1911
    avio_wb32(pb, 0x0);
1912
    avio_wb32(pb, video_kbitrate);
1913
    avio_wb32(pb, video_kbitrate);
1914
    avio_wb32(pb, FrameRate);
1915
    avio_wb32(pb, FrameRate);
1916
    avio_wb16(pb, VideoCodec->width);
1917
    avio_wb16(pb, VideoCodec->height);
1918
    avio_wb32(pb, 0x010001); /* ? */
1919
}
1920

    
1921
static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
1922
{
1923
    uint32_t c = -1;
1924
    int i, closed_gop = 0;
1925

    
1926
    for (i = 0; i < pkt->size - 4; i++) {
1927
        c = (c<<8) + pkt->data[i];
1928
        if (c == 0x1b8) { // gop
1929
            closed_gop = pkt->data[i+4]>>6 & 0x01;
1930
        } else if (c == 0x100) { // pic
1931
            int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
1932
            if (!temp_ref || closed_gop) // I picture is not reordered
1933
                *flags = MOV_SYNC_SAMPLE;
1934
            else
1935
                *flags = MOV_PARTIAL_SYNC_SAMPLE;
1936
            break;
1937
        }
1938
    }
1939
    return 0;
1940
}
1941

    
1942
int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
1943
{
1944
    MOVMuxContext *mov = s->priv_data;
1945
    AVIOContext *pb = s->pb;
1946
    MOVTrack *trk = &mov->tracks[pkt->stream_index];
1947
    AVCodecContext *enc = trk->enc;
1948
    unsigned int samplesInChunk = 0;
1949
    int size= pkt->size;
1950

    
1951
    if (url_is_streamed(s->pb)) return 0; /* Can't handle that */
1952
    if (!size) return 0; /* Discard 0 sized packets */
1953

    
1954
    if (enc->codec_id == CODEC_ID_AMR_NB) {
1955
        /* We must find out how many AMR blocks there are in one packet */
1956
        static uint16_t packed_size[16] =
1957
            {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0};
1958
        int len = 0;
1959

    
1960
        while (len < size && samplesInChunk < 100) {
1961
            len += packed_size[(pkt->data[len] >> 3) & 0x0F];
1962
            samplesInChunk++;
1963
        }
1964
        if(samplesInChunk > 1){
1965
            av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");
1966
            return -1;
1967
        }
1968
    } else if (enc->codec_id == CODEC_ID_ADPCM_MS ||
1969
               enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
1970
        samplesInChunk = enc->frame_size;
1971
    } else if (trk->sampleSize)
1972
        samplesInChunk = size/trk->sampleSize;
1973
    else
1974
        samplesInChunk = 1;
1975

    
1976
    /* copy extradata if it exists */
1977
    if (trk->vosLen == 0 && enc->extradata_size > 0) {
1978
        trk->vosLen = enc->extradata_size;
1979
        trk->vosData = av_malloc(trk->vosLen);
1980
        memcpy(trk->vosData, enc->extradata, trk->vosLen);
1981
    }
1982

    
1983
    if (enc->codec_id == CODEC_ID_H264 && trk->vosLen > 0 && *(uint8_t *)trk->vosData != 1) {
1984
        /* from x264 or from bytestream h264 */
1985
        /* nal reformating needed */
1986
        size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);
1987
    } else {
1988
        avio_write(pb, pkt->data, size);
1989
    }
1990

    
1991
    if ((enc->codec_id == CODEC_ID_DNXHD ||
1992
         enc->codec_id == CODEC_ID_AC3) && !trk->vosLen) {
1993
        /* copy frame to create needed atoms */
1994
        trk->vosLen = size;
1995
        trk->vosData = av_malloc(size);
1996
        if (!trk->vosData)
1997
            return AVERROR(ENOMEM);
1998
        memcpy(trk->vosData, pkt->data, size);
1999
    }
2000

    
2001
    if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
2002
        trk->cluster = av_realloc(trk->cluster, (trk->entry + MOV_INDEX_CLUSTER_SIZE) * sizeof(*trk->cluster));
2003
        if (!trk->cluster)
2004
            return -1;
2005
    }
2006

    
2007
    trk->cluster[trk->entry].pos = avio_tell(pb) - size;
2008
    trk->cluster[trk->entry].samplesInChunk = samplesInChunk;
2009
    trk->cluster[trk->entry].size = size;
2010
    trk->cluster[trk->entry].entries = samplesInChunk;
2011
    trk->cluster[trk->entry].dts = pkt->dts;
2012
    trk->trackDuration = pkt->dts - trk->cluster[0].dts + pkt->duration;
2013

    
2014
    if (pkt->pts == AV_NOPTS_VALUE) {
2015
        av_log(s, AV_LOG_WARNING, "pts has no value\n");
2016
        pkt->pts = pkt->dts;
2017
    }
2018
    if (pkt->dts != pkt->pts)
2019
        trk->flags |= MOV_TRACK_CTTS;
2020
    trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;
2021
    trk->cluster[trk->entry].flags = 0;
2022
    if (pkt->flags & AV_PKT_FLAG_KEY) {
2023
        if (mov->mode == MODE_MOV && enc->codec_id == CODEC_ID_MPEG2VIDEO &&
2024
            trk->entry > 0) { // force sync sample for the first key frame
2025
            mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
2026
            if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
2027
                trk->flags |= MOV_TRACK_STPS;
2028
        } else {
2029
            trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
2030
        }
2031
        if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
2032
            trk->hasKeyframes++;
2033
    }
2034
    trk->entry++;
2035
    trk->sampleCount += samplesInChunk;
2036
    mov->mdat_size += size;
2037

    
2038
    avio_flush(pb);
2039

    
2040
    if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
2041
        ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry);
2042
    return 0;
2043
}
2044

    
2045
// QuickTime chapters involve an additional text track with the chapter names
2046
// as samples, and a tref pointing from the other tracks to the chapter one.
2047
static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
2048
{
2049
    MOVMuxContext *mov = s->priv_data;
2050
    MOVTrack *track = &mov->tracks[tracknum];
2051
    AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
2052
    int i, len;
2053

    
2054
    track->mode = mov->mode;
2055
    track->tag = MKTAG('t','e','x','t');
2056
    track->timescale = MOV_TIMESCALE;
2057
    track->enc = avcodec_alloc_context();
2058
    track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
2059

    
2060
    for (i = 0; i < s->nb_chapters; i++) {
2061
        AVChapter *c = s->chapters[i];
2062
        AVMetadataTag *t;
2063

    
2064
        int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
2065
        pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
2066
        pkt.duration = end - pkt.dts;
2067

    
2068
        if ((t = av_metadata_get(c->metadata, "title", NULL, 0))) {
2069
            len = strlen(t->value);
2070
            pkt.size = len+2;
2071
            pkt.data = av_malloc(pkt.size);
2072
            AV_WB16(pkt.data, len);
2073
            memcpy(pkt.data+2, t->value, len);
2074
            ff_mov_write_packet(s, &pkt);
2075
            av_freep(&pkt.data);
2076
        }
2077
    }
2078
}
2079

    
2080
static int mov_write_header(AVFormatContext *s)
2081
{
2082
    AVIOContext *pb = s->pb;
2083
    MOVMuxContext *mov = s->priv_data;
2084
    int i, hint_track = 0;
2085

    
2086
    if (url_is_streamed(s->pb)) {
2087
        av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
2088
        return -1;
2089
    }
2090

    
2091
    /* Default mode == MP4 */
2092
    mov->mode = MODE_MP4;
2093

    
2094
    if (s->oformat != NULL) {
2095
        if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
2096
        else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
2097
        else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
2098
        else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
2099
        else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
2100

    
2101
        mov_write_ftyp_tag(pb,s);
2102
        if (mov->mode == MODE_PSP) {
2103
            if (s->nb_streams != 2) {
2104
                av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
2105
                return -1;
2106
            }
2107
            mov_write_uuidprof_tag(pb,s);
2108
        }
2109
    }
2110

    
2111
    mov->nb_streams = s->nb_streams;
2112
    if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
2113
        mov->chapter_track = mov->nb_streams++;
2114

    
2115
    if (s->flags & AVFMT_FLAG_RTP_HINT) {
2116
        /* Add hint tracks for each audio and video stream */
2117
        hint_track = mov->nb_streams;
2118
        for (i = 0; i < s->nb_streams; i++) {
2119
            AVStream *st = s->streams[i];
2120
            if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2121
                st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2122
                mov->nb_streams++;
2123
            }
2124
        }
2125
    }
2126

    
2127
    mov->tracks = av_mallocz(mov->nb_streams*sizeof(*mov->tracks));
2128
    if (!mov->tracks)
2129
        return AVERROR(ENOMEM);
2130

    
2131
    for(i=0; i<s->nb_streams; i++){
2132
        AVStream *st= s->streams[i];
2133
        MOVTrack *track= &mov->tracks[i];
2134
        AVMetadataTag *lang = av_metadata_get(st->metadata, "language", NULL,0);
2135

    
2136
        track->enc = st->codec;
2137
        track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
2138
        if (track->language < 0)
2139
            track->language = 0;
2140
        track->mode = mov->mode;
2141
        track->tag = mov_find_codec_tag(s, track);
2142
        if (!track->tag) {
2143
            av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
2144
                   "codec not currently supported in container\n", i);
2145
            goto error;
2146
        }
2147
        /* If hinting of this track is enabled by a later hint track,
2148
         * this is updated. */
2149
        track->hint_track = -1;
2150
        if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
2151
            if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
2152
                track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
2153
                track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
2154
                if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
2155
                    av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
2156
                    goto error;
2157
                }
2158
                track->height = track->tag>>24 == 'n' ? 486 : 576;
2159
            }
2160
            track->timescale = st->codec->time_base.den;
2161
            if (track->mode == MODE_MOV && track->timescale > 100000)
2162
                av_log(s, AV_LOG_WARNING,
2163
                       "WARNING codec timebase is very high. If duration is too long,\n"
2164
                       "file may not be playable by quicktime. Specify a shorter timebase\n"
2165
                       "or choose different container.\n");
2166
        }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
2167
            track->timescale = st->codec->sample_rate;
2168
            if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
2169
                av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i);
2170
                goto error;
2171
            }else if(st->codec->codec_id == CODEC_ID_ADPCM_MS ||
2172
                     st->codec->codec_id == CODEC_ID_ADPCM_IMA_WAV){
2173
                if (!st->codec->block_align) {
2174
                    av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
2175
                    goto error;
2176
                }
2177
                track->sampleSize = st->codec->block_align;
2178
            }else if(st->codec->frame_size > 1){ /* assume compressed audio */
2179
                track->audio_vbr = 1;
2180
            }else{
2181
                st->codec->frame_size = 1;
2182
                track->sampleSize = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
2183
            }
2184
            if (track->mode != MODE_MOV) {
2185
                if (track->timescale > UINT16_MAX) {
2186
                    av_log(s, AV_LOG_ERROR, "track %d: output format does not support "
2187
                           "sample rate %dhz\n", i, track->timescale);
2188
                    goto error;
2189
                }
2190
                if (track->enc->codec_id == CODEC_ID_MP3 && track->timescale < 16000) {
2191
                    av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
2192
                           i, track->enc->sample_rate);
2193
                    goto error;
2194
                }
2195
            }
2196
        }else if(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE){
2197
            track->timescale = st->codec->time_base.den;
2198
        }
2199
        if (!track->height)
2200
            track->height = st->codec->height;
2201

    
2202
        av_set_pts_info(st, 64, 1, track->timescale);
2203
    }
2204

    
2205
    mov_write_mdat_tag(pb, mov);
2206
    mov->time = s->timestamp + 0x7C25B080; //1970 based -> 1904 based
2207

    
2208
    if (mov->chapter_track)
2209
        mov_create_chapter_track(s, mov->chapter_track);
2210

    
2211
    if (s->flags & AVFMT_FLAG_RTP_HINT) {
2212
        /* Initialize the hint tracks for each audio and video stream */
2213
        for (i = 0; i < s->nb_streams; i++) {
2214
            AVStream *st = s->streams[i];
2215
            if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2216
                st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
2217
                ff_mov_init_hinting(s, hint_track, i);
2218
                hint_track++;
2219
            }
2220
        }
2221
    }
2222

    
2223
    avio_flush(pb);
2224

    
2225
    return 0;
2226
 error:
2227
    av_freep(&mov->tracks);
2228
    return -1;
2229
}
2230

    
2231
static int mov_write_trailer(AVFormatContext *s)
2232
{
2233
    MOVMuxContext *mov = s->priv_data;
2234
    AVIOContext *pb = s->pb;
2235
    int res = 0;
2236
    int i;
2237

    
2238
    int64_t moov_pos = avio_tell(pb);
2239

    
2240
    /* Write size of mdat tag */
2241
    if (mov->mdat_size+8 <= UINT32_MAX) {
2242
        avio_seek(pb, mov->mdat_pos, SEEK_SET);
2243
        avio_wb32(pb, mov->mdat_size+8);
2244
    } else {
2245
        /* overwrite 'wide' placeholder atom */
2246
        avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);
2247
        avio_wb32(pb, 1); /* special value: real atom size will be 64 bit value after tag field */
2248
        ffio_wfourcc(pb, "mdat");
2249
        avio_wb64(pb, mov->mdat_size+16);
2250
    }
2251
    avio_seek(pb, moov_pos, SEEK_SET);
2252

    
2253
    mov_write_moov_tag(pb, mov, s);
2254

    
2255
    if (mov->chapter_track)
2256
        av_freep(&mov->tracks[mov->chapter_track].enc);
2257

    
2258
    for (i=0; i<mov->nb_streams; i++) {
2259
        if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
2260
            ff_mov_close_hinting(&mov->tracks[i]);
2261
        av_freep(&mov->tracks[i].cluster);
2262

    
2263
        if(mov->tracks[i].vosLen) av_free(mov->tracks[i].vosData);
2264

    
2265
    }
2266

    
2267
    avio_flush(pb);
2268

    
2269
    av_freep(&mov->tracks);
2270

    
2271
    return res;
2272
}
2273

    
2274
#if CONFIG_MOV_MUXER
2275
AVOutputFormat ff_mov_muxer = {
2276
    "mov",
2277
    NULL_IF_CONFIG_SMALL("MOV format"),
2278
    NULL,
2279
    "mov",
2280
    sizeof(MOVMuxContext),
2281
    CODEC_ID_AAC,
2282
    CODEC_ID_MPEG4,
2283
    mov_write_header,
2284
    ff_mov_write_packet,
2285
    mov_write_trailer,
2286
    .flags = AVFMT_GLOBALHEADER,
2287
    .codec_tag = (const AVCodecTag* const []){codec_movvideo_tags, codec_movaudio_tags, 0},
2288
};
2289
#endif
2290
#if CONFIG_TGP_MUXER
2291
AVOutputFormat ff_tgp_muxer = {
2292
    "3gp",
2293
    NULL_IF_CONFIG_SMALL("3GP format"),
2294
    NULL,
2295
    "3gp",
2296
    sizeof(MOVMuxContext),
2297
    CODEC_ID_AMR_NB,
2298
    CODEC_ID_H263,
2299
    mov_write_header,
2300
    ff_mov_write_packet,
2301
    mov_write_trailer,
2302
    .flags = AVFMT_GLOBALHEADER,
2303
    .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2304
};
2305
#endif
2306
#if CONFIG_MP4_MUXER
2307
AVOutputFormat ff_mp4_muxer = {
2308
    "mp4",
2309
    NULL_IF_CONFIG_SMALL("MP4 format"),
2310
    "application/mp4",
2311
    "mp4",
2312
    sizeof(MOVMuxContext),
2313
    CODEC_ID_AAC,
2314
    CODEC_ID_MPEG4,
2315
    mov_write_header,
2316
    ff_mov_write_packet,
2317
    mov_write_trailer,
2318
    .flags = AVFMT_GLOBALHEADER,
2319
    .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2320
};
2321
#endif
2322
#if CONFIG_PSP_MUXER
2323
AVOutputFormat ff_psp_muxer = {
2324
    "psp",
2325
    NULL_IF_CONFIG_SMALL("PSP MP4 format"),
2326
    NULL,
2327
    "mp4,psp",
2328
    sizeof(MOVMuxContext),
2329
    CODEC_ID_AAC,
2330
    CODEC_ID_MPEG4,
2331
    mov_write_header,
2332
    ff_mov_write_packet,
2333
    mov_write_trailer,
2334
    .flags = AVFMT_GLOBALHEADER,
2335
    .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},
2336
};
2337
#endif
2338
#if CONFIG_TG2_MUXER
2339
AVOutputFormat ff_tg2_muxer = {
2340
    "3g2",
2341
    NULL_IF_CONFIG_SMALL("3GP2 format"),
2342
    NULL,
2343
    "3g2",
2344
    sizeof(MOVMuxContext),
2345
    CODEC_ID_AMR_NB,
2346
    CODEC_ID_H263,
2347
    mov_write_header,
2348
    ff_mov_write_packet,
2349
    mov_write_trailer,
2350
    .flags = AVFMT_GLOBALHEADER,
2351
    .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},
2352
};
2353
#endif
2354
#if CONFIG_IPOD_MUXER
2355
AVOutputFormat ff_ipod_muxer = {
2356
    "ipod",
2357
    NULL_IF_CONFIG_SMALL("iPod H.264 MP4 format"),
2358
    "application/mp4",
2359
    "m4v,m4a",
2360
    sizeof(MOVMuxContext),
2361
    CODEC_ID_AAC,
2362
    CODEC_ID_H264,
2363
    mov_write_header,
2364
    ff_mov_write_packet,
2365
    mov_write_trailer,
2366
    .flags = AVFMT_GLOBALHEADER,
2367
    .codec_tag = (const AVCodecTag* const []){codec_ipod_tags, 0},
2368
};
2369
#endif