movenc.c 44.6 KB
Newer Older
1 2 3
/*
 * MOV, 3GP, MP4 encoder.
 * Copyright (c) 2003 Thomas Raivio.
4
 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>.
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#include "avformat.h"
21
#include "avi.h"
22 23
#include "avio.h"

24 25 26
#undef NDEBUG
#include <assert.h>

27 28 29
#define MOV_INDEX_CLUSTER_SIZE 16384
#define globalTimescale 1000

30 31 32
#define MODE_MP4 0
#define MODE_MOV 1
#define MODE_3GP 2
33 34
#define MODE_PSP 3 // example working PSP command line: 
// ffmpeg -i testinput.avi  -f psp -r 14.985 -s 320x240 -b 768 -ar 24000 -ab 32 M4V00001.MP4
35

36
typedef struct MOVIentry {
37 38
    unsigned int flags, pos, size;
    unsigned int samplesInChunk;
39
    char         key_frame;
40 41 42 43
    unsigned int entries;
} MOVIentry;

typedef struct MOVIndex {
44
    int         mode;
45 46 47 48 49
    int         entry;
    int         mdat_size;
    int         ents_allocated;
    long        timescale;
    long        time;
50
    long        trackDuration;
51 52
    long        sampleCount;
    long        sampleDuration;
53
    int         hasKeyframes;
54 55 56 57
    int         trackID;
    AVCodecContext *enc;

    int         vosLen;
58
    uint8_t     *vosData;
59 60 61
    MOVIentry** cluster;
} MOVTrack;

62
typedef struct MOVContext {
63
    int     mode;
64 65
    long    time;
    int     nb_streams;
66 67
    int     mdat_written;
    offset_t mdat_pos;
68 69 70 71
    long    timescale;
    MOVTrack tracks[MAX_STREAMS];
} MOVContext;

72 73
static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track);

74 75
//FIXME supprt 64bit varaint with wide placeholders
static int updateSize (ByteIOContext *pb, int pos)
76 77 78
{
    long curpos = url_ftell(pb);
    url_fseek(pb, pos, SEEK_SET);
79
    put_be32(pb, curpos - pos); /* rewrite size */
80
    url_fseek(pb, curpos, SEEK_SET);
81 82

    return curpos - pos;
83 84
}

85
/* Chunk offset atom */
86
static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
87 88
{
    int i;
89 90
    int pos = url_ftell(pb);
    put_be32(pb, 0); /* size */
91 92 93 94 95 96 97 98
    put_tag(pb, "stco");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, track->entry); /* entry count */
    for (i=0; i<track->entry; i++) {
        int cl = i / MOV_INDEX_CLUSTER_SIZE;
        int id = i % MOV_INDEX_CLUSTER_SIZE;
        put_be32(pb, track->cluster[cl][id].pos);
    }
99
    return updateSize (pb, pos);
100 101
}

102
/* Sample size atom */
103
static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
104
{
105
    int equalChunks = 1;
106
    int i, j, entries = 0, tst = -1, oldtst = -1;
107

108 109
    int pos = url_ftell(pb);
    put_be32(pb, 0); /* size */
110 111 112
    put_tag(pb, "stsz");
    put_be32(pb, 0); /* version & flags */

113 114 115
    for (i=0; i<track->entry; i++) {
        int cl = i / MOV_INDEX_CLUSTER_SIZE;
        int id = i % MOV_INDEX_CLUSTER_SIZE;
116 117 118
        tst = track->cluster[cl][id].size/track->cluster[cl][id].entries;
        if(oldtst != -1 && tst != oldtst) {
            equalChunks = 0;
119 120
        }
        oldtst = tst;
121
        entries += track->cluster[cl][id].entries;
122
    }
123 124
    if (equalChunks) {
        int sSize = track->cluster[0][0].size/track->cluster[0][0].entries;
125
        put_be32(pb, sSize); // sample size 
126
        put_be32(pb, entries); // sample count
127
    }
128 129
    else {
        put_be32(pb, 0); // sample size 
130
        put_be32(pb, entries); // sample count 
131
        for (i=0; i<track->entry; i++) {
132 133
            int cl = i / MOV_INDEX_CLUSTER_SIZE;
            int id = i % MOV_INDEX_CLUSTER_SIZE;
134 135 136 137
            for ( j=0; j<track->cluster[cl][id].entries; j++) {
                put_be32(pb, track->cluster[cl][id].size /
                         track->cluster[cl][id].entries);
            }
138 139
        }
    }
140
    return updateSize (pb, pos);
141 142
}

143
/* Sample to chunk atom */
144
static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack* track)
145
{
146 147 148 149
    int index = 0, oldval = -1, i, entryPos, curpos;

    int pos = url_ftell(pb);
    put_be32(pb, 0); /* size */
150 151
    put_tag(pb, "stsc");
    put_be32(pb, 0); // version & flags 
152 153 154 155 156
    entryPos = url_ftell(pb);
    put_be32(pb, track->entry); // entry count 
    for (i=0; i<track->entry; i++) {
        int cl = i / MOV_INDEX_CLUSTER_SIZE;
        int id = i % MOV_INDEX_CLUSTER_SIZE;
157
        if(oldval != track->cluster[cl][id].samplesInChunk)
158
        {
159
            put_be32(pb, i+1); // first chunk 
160
            put_be32(pb, track->cluster[cl][id].samplesInChunk); // samples per chunk
161
            put_be32(pb, 0x1); // sample description index 
162
            oldval = track->cluster[cl][id].samplesInChunk;
163
            index++;
164 165
        }
    }
166 167 168 169
    curpos = url_ftell(pb);
    url_fseek(pb, entryPos, SEEK_SET);
    put_be32(pb, index); // rewrite size 
    url_fseek(pb, curpos, SEEK_SET);
170

171
    return updateSize (pb, pos);
172 173
}

174
/* Sync sample atom */
175
static int mov_write_stss_tag(ByteIOContext *pb, MOVTrack* track)
176
{
177 178 179 180
    long curpos;
    int i, index = 0, entryPos;
    int pos = url_ftell(pb);
    put_be32(pb, 0); // size 
181
    put_tag(pb, "stss");
182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197
    put_be32(pb, 0); // version & flags 
    entryPos = url_ftell(pb);
    put_be32(pb, track->entry); // entry count 
    for (i=0; i<track->entry; i++) {
        int cl = i / MOV_INDEX_CLUSTER_SIZE;
        int id = i % MOV_INDEX_CLUSTER_SIZE;
        if(track->cluster[cl][id].key_frame == 1) {
            put_be32(pb, i+1);
            index++;
        }
    }
    curpos = url_ftell(pb);
    url_fseek(pb, entryPos, SEEK_SET);
    put_be32(pb, index); // rewrite size 
    url_fseek(pb, curpos, SEEK_SET);
    return updateSize (pb, pos);
198 199
}

200
static int mov_write_damr_tag(ByteIOContext *pb)
201 202 203 204 205
{
    put_be32(pb, 0x11); /* size */
    put_tag(pb, "damr");
    put_tag(pb, "FFMP");
    put_byte(pb, 0);
206 207 208 209 210

    put_be16(pb, 0x80); /* Mode set (all modes for AMR_NB) */
    put_be16(pb, 0xa); /* Mode change period (no restriction) */
    //put_be16(pb, 0x81ff); /* Mode set (all modes for AMR_NB) */
    //put_be16(pb, 1); /* Mode change period (no restriction) */
211 212 213
    return 0x11;
}

214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240
static int mov_write_wave_tag(ByteIOContext *pb, MOVTrack* track)
{
    int pos = url_ftell(pb);

    put_be32(pb, 0);     /* size */
    put_tag(pb, "wave");

    put_be32(pb, 12);    /* size */
    put_tag(pb, "frma");
    put_tag(pb, "mp4a");

    put_be32(pb, 12);    /* size */
    put_tag(pb, "mp4a");
    put_be32(pb, 0);

    mov_write_esds_tag(pb, track);

    put_be32(pb, 12);    /* size */
    put_tag(pb, "srcq");
    put_be32(pb, 0x40);

    put_be32(pb, 8);     /* size */
    put_be32(pb, 0);     /* null tag */

    return updateSize (pb, pos);
}

241 242 243 244 245 246 247 248 249 250 251 252 253 254
const CodecTag codec_movaudio_tags[] = {
    { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') },
    { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') },
    { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') },
    { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') },
    { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') },
    { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
    { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') },
    { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') },
    { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') },
    { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') },
    { 0, 0 },
};

255
static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
256
{
257 258
    int pos = url_ftell(pb);
    int tag;
259
    
260
    put_be32(pb, 0); /* size */
261

262 263
    tag = track->enc->codec_tag;
    if (!tag)
264 265 266 267 268
    tag = codec_get_tag(codec_movaudio_tags, track->enc->codec_id);
    // if no mac fcc found, try with Microsoft tags
    if (!tag)
    {
	int tmp = codec_get_tag(codec_wav_tags, track->enc->codec_id);
269
        tag = MKTAG('m', 's', ((tmp >> 8) & 0xff), (tmp & 0xff));
270
    }
271
    put_le32(pb, tag); // store it byteswapped
272

273 274 275
    put_be32(pb, 0); /* Reserved */
    put_be16(pb, 0); /* Reserved */
    put_be16(pb, 1); /* Data-reference index, XXX  == 1 */
276

277
    /* SoundDescription */
278 279 280 281
    if(track->mode == MODE_MOV && track->enc->codec_id == CODEC_ID_AAC)
        put_be16(pb, 1); /* Version 1 */
    else
        put_be16(pb, 0); /* Version 0 */
282
    put_be16(pb, 0); /* Revision level */
283 284
    put_be32(pb, 0); /* Reserved */

285 286
    put_be16(pb, track->enc->channels); /* Number of channels */
    /* TODO: Currently hard-coded to 16-bit, there doesn't seem
287
                 to be a good way to get number of bits of audio */
288
    put_be16(pb, 0x10); /* Reserved */
289 290 291 292 293 294 295 296 297 298

    if(track->enc->codec_id == CODEC_ID_AAC ||
       track->enc->codec_id == CODEC_ID_MP3)
    {
        put_be16(pb, 0xfffe); /* compression ID (vbr)*/
    }
    else
    {
        put_be16(pb, 0); /* compression ID (= 0) */
    }
299
    put_be16(pb, 0); /* packet size (= 0) */
300 301 302
    put_be16(pb, track->timescale); /* Time scale */
    put_be16(pb, 0); /* Reserved */

303 304 305 306 307 308 309 310 311 312 313 314 315
    if(track->mode == MODE_MOV && track->enc->codec_id == CODEC_ID_AAC)
    {
        /* SoundDescription V1 extended info */
        put_be32(pb, track->enc->frame_size); /* Samples per packet  */
        put_be32(pb, 1536); /* Bytes per packet */
        put_be32(pb, 2); /* Bytes per frame */
        put_be32(pb, 2); /* Bytes per sample */
    }

    if(track->enc->codec_id == CODEC_ID_AAC) {
        if( track->mode == MODE_MOV ) mov_write_wave_tag(pb, track);
        else mov_write_esds_tag(pb, track);
    }
316 317
    if(track->enc->codec_id == CODEC_ID_AMR_NB)
        mov_write_damr_tag(pb);
318
    return updateSize (pb, pos);
319 320
}

321
static int mov_write_d263_tag(ByteIOContext *pb)
322 323 324 325 326 327 328 329 330
{
    put_be32(pb, 0xf); /* size */
    put_tag(pb, "d263");
    put_tag(pb, "FFMP");
    put_be16(pb, 0x0a);
    put_byte(pb, 0);
    return 0xf;
}

331 332
/* TODO: No idea about these values */
static int mov_write_svq3_tag(ByteIOContext *pb)
333
{
334 335 336 337 338 339 340 341
    put_be32(pb, 0x15);
    put_tag(pb, "SMI ");
    put_tag(pb, "SEQH");
    put_be32(pb, 0x5);
    put_be32(pb, 0xe2c0211d);
    put_be32(pb, 0xc0000000);
    put_byte(pb, 0);   
    return 0x15;
342 343
}

344 345 346 347 348 349 350 351 352 353 354 355 356
static unsigned int descrLength(unsigned int len)
{
    if (len < 0x00000080)
        return 2 + len;
    else if (len < 0x00004000)
        return 3 + len;
    else if(len < 0x00200000)
        return 4 + len;
    else
        return 5 + len;
}

static void putDescr(ByteIOContext *pb, int tag, int size)
357
{
358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393
    uint32_t len;
    uint8_t  vals[4];

    len = size;
    vals[3] = (uint8_t)(len & 0x7f);
    len >>= 7;
    vals[2] = (uint8_t)((len & 0x7f) | 0x80); 
    len >>= 7;
    vals[1] = (uint8_t)((len & 0x7f) | 0x80); 
    len >>= 7;
    vals[0] = (uint8_t)((len & 0x7f) | 0x80);

    put_byte(pb, tag); // DescriptorTag

    if (size < 0x00000080)
    {
        put_byte(pb, vals[3]);
    }
    else if (size < 0x00004000)
    {
        put_byte(pb, vals[2]);
        put_byte(pb, vals[3]);
    }
    else if (size < 0x00200000)
    {
        put_byte(pb, vals[1]);
        put_byte(pb, vals[2]);
        put_byte(pb, vals[3]);
    }
    else if (size < 0x10000000)
    {
        put_byte(pb, vals[0]);
        put_byte(pb, vals[1]);
        put_byte(pb, vals[2]);
        put_byte(pb, vals[3]);
    }
394 395
}

396
static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track) // Basic
397
{
398
    int decoderSpecificInfoLen;
399
    int pos = url_ftell(pb);
400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421
    void *vosDataBackup=track->vosData;
    int vosLenBackup=track->vosLen;
    
    // we should be able to have these passed in, via vosData, then we wouldn't need to attack this routine at all
    static const char PSPAACData[]={0x13,0x10};
    static const char PSPMP4Data[]={0x00,0x00,0x01,0xB0,0x03,0x00,0x00,0x01,0xB5,0x09,0x00,0x00,0x01,0x00,0x00,0x00,0x01,0x20,0x00,0x84,0x5D,0x4C,0x28,0x50,0x20,0xF0,0xA3,0x1F };
    
    
    if (track->mode == MODE_PSP)  // fails on psp if this is not here
    {
        if (track->enc->codec_id == CODEC_ID_AAC)
        {
            track->vosLen = 2;
            track->vosData = PSPAACData;
        }

        if (track->enc->codec_id == CODEC_ID_MPEG4)
        {
            track->vosLen = 28;
            track->vosData = PSPMP4Data;
        }
    }
422

423 424
    decoderSpecificInfoLen = track->vosLen ? descrLength(track->vosLen):0;

425
    put_be32(pb, 0);               // size
426
    put_tag(pb, "esds");
427
    put_be32(pb, 0);               // Version
428

429 430 431 432
    // ES descriptor
    putDescr(pb, 0x03, 3 + descrLength(13 + decoderSpecificInfoLen) +
             descrLength(1));
    put_be16(pb, 0x0001);          // ID (= 1)
433 434
    put_byte(pb, 0x00);            // flags (= no flags)

435 436 437 438 439 440 441 442 443 444 445 446 447
    // DecoderConfig descriptor
    putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);

    if(track->enc->codec_id == CODEC_ID_AAC)
        put_byte(pb, 0x40);        // Object type indication
    else if(track->enc->codec_id == CODEC_ID_MPEG4)
        put_byte(pb, 0x20);        // Object type indication (Visual 14496-2)

    if(track->enc->codec_type == CODEC_TYPE_AUDIO)
        put_byte(pb, 0x15);            // flags (= Audiostream)
    else
        put_byte(pb, 0x11);            // flags (= Visualstream)

448 449 450 451
    put_byte(pb, 0x0);             // Buffersize DB (24 bits)
    put_be16(pb, 0x0dd2);          // Buffersize DB

    // TODO: find real values for these
452 453
    put_be32(pb, track->enc->bit_rate);     // maxbitrate
    put_be32(pb, track->enc->bit_rate);     // avg bitrate
454

455 456 457 458 459 460 461
    if (track->vosLen)
    {
        // DecoderSpecific info descriptor
        putDescr(pb, 0x05, track->vosLen);
        put_buffer(pb, track->vosData, track->vosLen);
    }

462 463 464
    track->vosData = vosDataBackup;
    track->vosLen = vosLenBackup;

465
    // SL descriptor
466
    putDescr(pb, 0x06, 1);
467
    put_byte(pb, 0x02);
468
    return updateSize (pb, pos);
469 470
}

471 472 473 474 475 476 477 478 479
const CodecTag codec_movvideo_tags[] = {
    { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') },
    { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') },
    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
    { CODEC_ID_H263, MKTAG('s', '2', '6', '3') },
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') },
    { 0, 0 },
};

480
static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
481
{
482
    int pos = url_ftell(pb);
483
    char compressor_name[32];
484
    int tag;
485

486
    put_be32(pb, 0); /* size */
487

488 489
    tag = track->enc->codec_tag;
    if (!tag)
490 491 492 493
    tag = codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
    // if no mac fcc found, try with Microsoft tags
    if (!tag)
	tag = codec_get_tag(codec_bmp_tags, track->enc->codec_id);
494
    put_le32(pb, tag); // store it byteswapped
495

496 497 498 499
    put_be32(pb, 0); /* Reserved */
    put_be16(pb, 0); /* Reserved */
    put_be16(pb, 1); /* Data-reference index */

500 501 502 503 504 505 506 507 508 509
    put_be16(pb, 0); /* Codec stream version */
    put_be16(pb, 0); /* Codec stream revision (=0) */
    put_tag(pb, "FFMP"); /* Vendor */
    if(track->enc->codec_id == CODEC_ID_RAWVIDEO) {
        put_be32(pb, 0); /* Temporal Quality */
        put_be32(pb, 0x400); /* Spatial Quality = lossless*/
    } else {
        put_be32(pb, 0x200); /* Temporal Quality = normal */
        put_be32(pb, 0x200); /* Spatial Quality = normal */
    }
510 511
    put_be16(pb, track->enc->width); /* Video width */
    put_be16(pb, track->enc->height); /* Video height */
512 513
    put_be32(pb, 0x00480000); /* Horizontal resolution 72dpi */
    put_be32(pb, 0x00480000); /* Vertical resolution 72dpi */
514 515 516
    put_be32(pb, 0); /* Data size (= 0) */
    put_be16(pb, 1); /* Frame count (= 1) */
    
517 518 519 520 521
    memset(compressor_name,0,32);
    if (track->enc->codec->name)
        strncpy(compressor_name,track->enc->codec->name,31);
    put_byte(pb, FFMAX(strlen(compressor_name),32) );
    put_buffer(pb, compressor_name, 31);
522
    
523 524 525 526 527 528 529 530 531 532
    put_be16(pb, 0x18); /* Reserved */
    put_be16(pb, 0xffff); /* Reserved */
    if(track->enc->codec_id == CODEC_ID_MPEG4)
        mov_write_esds_tag(pb, track);
    else if(track->enc->codec_id == CODEC_ID_H263)
        mov_write_d263_tag(pb);
    else if(track->enc->codec_id == CODEC_ID_SVQ3)
        mov_write_svq3_tag(pb);    

    return updateSize (pb, pos);
533 534
}

535
static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
536
{
537
    int pos = url_ftell(pb);
538 539 540 541
    put_be32(pb, 0); /* size */
    put_tag(pb, "stsd");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, 1); /* entry count */
542 543 544 545
    if (track->enc->codec_type == CODEC_TYPE_VIDEO)
        mov_write_video_tag(pb, track);
    else if (track->enc->codec_type == CODEC_TYPE_AUDIO)
        mov_write_audio_tag(pb, track);
546
    return updateSize(pb, pos);
547 548
}

549
/* TODO?: Currently all samples/frames seem to have same duration */
550
/* Time to sample atom */
551
static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
552 553 554 555 556 557
{
    put_be32(pb, 0x18); /* size */
    put_tag(pb, "stts");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, 1); /* entry count */

558 559
    put_be32(pb, track->sampleCount); /* sample count */
    put_be32(pb, track->sampleDuration); /* sample duration */
560 561 562
    return 0x18;
}

563
static int mov_write_dref_tag(ByteIOContext *pb)
564 565 566 567 568 569 570 571 572 573 574 575 576
{
    put_be32(pb, 28); /* size */
    put_tag(pb, "dref");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, 1); /* entry count */

    put_be32(pb, 0xc); /* size */
    put_tag(pb, "url ");
    put_be32(pb, 1); /* version & flags */

    return 28;
}

577
static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack* track)
578
{
579
    int pos = url_ftell(pb);
580 581
    put_be32(pb, 0); /* size */
    put_tag(pb, "stbl");
582 583
    mov_write_stsd_tag(pb, track);
    mov_write_stts_tag(pb, track);
584 585 586
    if (track->enc->codec_type == CODEC_TYPE_VIDEO &&
        track->hasKeyframes)
        mov_write_stss_tag(pb, track);
587 588 589 590
    mov_write_stsc_tag(pb, track);
    mov_write_stsz_tag(pb, track);
    mov_write_stco_tag(pb, track);
    return updateSize(pb, pos);
591 592
}

593
static int mov_write_dinf_tag(ByteIOContext *pb)
594
{
595
    int pos = url_ftell(pb);
596 597
    put_be32(pb, 0); /* size */
    put_tag(pb, "dinf");
598 599
    mov_write_dref_tag(pb);
    return updateSize(pb, pos);
600 601
}

602
static int mov_write_smhd_tag(ByteIOContext *pb)
603 604 605 606 607 608 609 610 611
{
    put_be32(pb, 16); /* size */
    put_tag(pb, "smhd");
    put_be32(pb, 0); /* version & flags */
    put_be16(pb, 0); /* reserved (balance, normally = 0) */
    put_be16(pb, 0); /* reserved */
    return 16;
}

612
static int mov_write_vmhd_tag(ByteIOContext *pb)
613 614 615 616 617 618 619 620
{
    put_be32(pb, 0x14); /* size (always 0x14) */
    put_tag(pb, "vmhd");
    put_be32(pb, 0x01); /* version & flags */
    put_be64(pb, 0); /* reserved (graphics mode = copy) */
    return 0x14;
}

621
static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
622
{
623
    char *descr, *hdlr, *hdlr_type;
624
    int pos = url_ftell(pb);
625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640
    
    if (!track) { /* no media --> data handler */
	hdlr = "dhlr";
	hdlr_type = "url ";
	descr = "DataHandler";
    } else {
	hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
	if (track->enc->codec_type == CODEC_TYPE_VIDEO) {
	    hdlr_type = "vide";
	    descr = "VideoHandler";
	} else {
	    hdlr_type = "soun";
	    descr = "SoundHandler";
	}
    }
    
641
    put_be32(pb, 0); /* size */
642 643
    put_tag(pb, "hdlr");
    put_be32(pb, 0); /* Version & flags */
644
    put_buffer(pb, hdlr, 4); /* handler */
645
    put_tag(pb, hdlr_type); /* handler type */
646 647 648
    put_be32(pb ,0); /* reserved */
    put_be32(pb ,0); /* reserved */
    put_be32(pb ,0); /* reserved */
649 650 651 652 653 654 655 656 657 658
    put_byte(pb, strlen(descr)); /* string counter */
    put_buffer(pb, descr, strlen(descr)); /* handler description */
    return updateSize(pb, pos);
}

static int mov_write_minf_tag(ByteIOContext *pb, MOVTrack* track)
{
    int pos = url_ftell(pb);
    put_be32(pb, 0); /* size */
    put_tag(pb, "minf");
659
    if(track->enc->codec_type == CODEC_TYPE_VIDEO)
660
        mov_write_vmhd_tag(pb);
661
    else
662 663 664 665 666
        mov_write_smhd_tag(pb);
    if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
        mov_write_hdlr_tag(pb, NULL);
    mov_write_dinf_tag(pb);
    mov_write_stbl_tag(pb, track);
667
    return updateSize(pb, pos);
668 669
}

670
static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
671 672 673 674 675 676
{
    put_be32(pb, 32); /* size */
    put_tag(pb, "mdhd");
    put_be32(pb, 0); /* Version & flags */
    put_be32(pb, track->time); /* creation time */
    put_be32(pb, track->time); /* modification time */
677 678
    put_be32(pb, track->timescale); /* time scale (sample rate for audio) */ 
    put_be32(pb, track->trackDuration); /* duration */
679 680 681 682 683
    put_be16(pb, 0); /* language, 0 = english */
    put_be16(pb, 0); /* reserved (quality) */
    return 32;
}

684
static int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack* track)
685
{
686
    int pos = url_ftell(pb);
687 688
    put_be32(pb, 0); /* size */
    put_tag(pb, "mdia");
689 690 691 692
    mov_write_mdhd_tag(pb, track);
    mov_write_hdlr_tag(pb, track);
    mov_write_minf_tag(pb, track);
    return updateSize(pb, pos);
693 694
}

695
static int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack* track)
696
{
697
    int64_t maxTrackLenTemp;
698 699
    put_be32(pb, 0x5c); /* size (always 0x5c) */
    put_tag(pb, "tkhd");
700
    put_be32(pb, 0xf); /* version & flags (track enabled) */
701 702 703 704
    put_be32(pb, track->time); /* creation time */
    put_be32(pb, track->time); /* modification time */
    put_be32(pb, track->trackID); /* track-id */
    put_be32(pb, 0); /* reserved */
705 706
    maxTrackLenTemp = ((int64_t)globalTimescale*(int64_t)track->trackDuration)/(int64_t)track->timescale;
    put_be32(pb, (long)maxTrackLenTemp); /* duration */
707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730

    put_be32(pb, 0); /* reserved */
    put_be32(pb, 0); /* reserved */
    put_be32(pb, 0x0); /* reserved (Layer & Alternate group) */
    /* Volume, only for audio */
    if(track->enc->codec_type == CODEC_TYPE_AUDIO)
        put_be16(pb, 0x0100);
    else
        put_be16(pb, 0);
    put_be16(pb, 0); /* reserved */

    /* Matrix structure */
    put_be32(pb, 0x00010000); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x00010000); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x40000000); /* reserved */

    /* Track width and height, for visual only */
    if(track->enc->codec_type == CODEC_TYPE_VIDEO) {
731 732 733
        double sample_aspect_ratio = av_q2d(track->enc->sample_aspect_ratio);
        if( !sample_aspect_ratio ) sample_aspect_ratio = 1;
        put_be32(pb, sample_aspect_ratio * track->enc->width*0x10000);
734
        put_be32(pb, track->enc->height*0x10000);
735 736 737 738 739 740 741 742
    }
    else {
        put_be32(pb, 0);
        put_be32(pb, 0);
    }
    return 0x5c;
}

743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780
// This box seems important for the psp playback ... without it the movie seems to hang
static int mov_write_edts_tag(ByteIOContext *pb, MOVTrack *track)
{
    int64_t maxTrackLenTemp;
    put_be32(pb, 0x24); /* size  */
    put_tag(pb, "edts");
    put_be32(pb, 0x1c); /* size  */
    put_tag(pb, "elst");
    put_be32(pb, 0x0);
    put_be32(pb, 0x1);

    maxTrackLenTemp = ((int64_t)globalTimescale*(int64_t)track->trackDuration)/(int64_t)track->timescale;
    put_be32(pb, (long)maxTrackLenTemp); /* duration   ... doesn't seem to effect psp */

    put_be32(pb, 0x0);
    put_be32(pb, 0x00010000);
    return 0x24;
}

// goes at the end of each track!  ... Critical for PSP playback ("Incompatible data" without it)
static int mov_write_uuid_tag_psp(ByteIOContext *pb, MOVTrack *mov)
{
    put_be32(pb, 0x34); /* size ... reports as 28 in mp4box! */
    put_tag(pb, "uuid");
    put_tag(pb, "USMT");
    put_be32(pb, 0x21d24fce);
    put_be32(pb, 0xbb88695c);
    put_be32(pb, 0xfac9c740);
    put_be32(pb, 0x1c);     // another size here!
    put_tag(pb, "MTDT");
    put_be32(pb, 0x00010012);
    put_be32(pb, 0x0a);
    put_be32(pb, 0x55c40000);
    put_be32(pb, 0x1);
    put_be32(pb, 0x0);
    return 0x34;
}

781
static int mov_write_trak_tag(ByteIOContext *pb, MOVTrack* track)
782
{
783
    int pos = url_ftell(pb);
784 785
    put_be32(pb, 0); /* size */
    put_tag(pb, "trak");
786
    mov_write_tkhd_tag(pb, track);
787 788
    if (track->mode == MODE_PSP) 
        mov_write_edts_tag(pb, track);  // PSP Movies require edts box
789
    mov_write_mdia_tag(pb, track);
790 791
    if (track->mode == MODE_PSP) 
        mov_write_uuid_tag_psp(pb,track);  // PSP Movies require this uuid box
792
    return updateSize(pb, pos);
793 794 795
}

/* TODO: Not sorted out, but not necessary either */
796
static int mov_write_iods_tag(ByteIOContext *pb, MOVContext *mov)
797 798 799 800 801 802 803 804 805 806 807 808
{
    put_be32(pb, 0x15); /* size */
    put_tag(pb, "iods");
    put_be32(pb, 0);    /* version & flags */
    put_be16(pb, 0x1007);
    put_byte(pb, 0);
    put_be16(pb, 0x4fff);
    put_be16(pb, 0xfffe);
    put_be16(pb, 0x01ff);
    return 0x15;
}

809
static int mov_write_mvhd_tag(ByteIOContext *pb, MOVContext *mov)
810 811
{
    int maxTrackID = 1, maxTrackLen = 0, i;
812
    int64_t maxTrackLenTemp;
813 814 815 816 817 818 819 820 821

    put_be32(pb, 0x6c); /* size (always 0x6c) */
    put_tag(pb, "mvhd");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, mov->time); /* creation time */
    put_be32(pb, mov->time); /* modification time */
    put_be32(pb, mov->timescale); /* timescale */
    for (i=0; i<MAX_STREAMS; i++) {
        if(mov->tracks[i].entry > 0) {
822 823 824
            maxTrackLenTemp = ((int64_t)globalTimescale*(int64_t)mov->tracks[i].trackDuration)/(int64_t)mov->tracks[i].timescale;
            if(maxTrackLen < maxTrackLenTemp)
                maxTrackLen = maxTrackLenTemp;
825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857
            if(maxTrackID < mov->tracks[i].trackID)
                maxTrackID = mov->tracks[i].trackID;
        }
    }
    put_be32(pb, maxTrackLen); /* duration of longest track */

    put_be32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
    put_be16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
    put_be16(pb, 0); /* reserved */
    put_be32(pb, 0); /* reserved */
    put_be32(pb, 0); /* reserved */

    /* Matrix structure */
    put_be32(pb, 0x00010000); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x00010000); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x0); /* reserved */
    put_be32(pb, 0x40000000); /* reserved */

    put_be32(pb, 0); /* reserved (preview time) */
    put_be32(pb, 0); /* reserved (preview duration) */
    put_be32(pb, 0); /* reserved (poster time) */
    put_be32(pb, 0); /* reserved (selection time) */
    put_be32(pb, 0); /* reserved (selection duration) */
    put_be32(pb, 0); /* reserved (current time) */
    put_be32(pb, maxTrackID+1); /* Next track id */
    return 0x6c;
}

858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070
static int mov_write_itunes_hdlr_tag(ByteIOContext *pb, MOVContext* mov,
                                     AVFormatContext *s)
{
    int pos = url_ftell(pb);
    put_be32(pb, 0); /* size */
    put_tag(pb, "hdlr");
    put_be32(pb, 0);
    put_be32(pb, 0);
    put_tag(pb, "mdir");
    put_tag(pb, "appl");
    put_be32(pb, 0);
    put_be32(pb, 0);
    put_be16(pb, 0);
    return updateSize(pb, pos);
}

/* helper function to write a data tag with the specified string as data */
static int mov_write_string_data_tag(ByteIOContext *pb, MOVContext* mov,
                                     AVFormatContext *s, const char *data)
{
    int pos = url_ftell(pb);
    put_be32(pb, 0); /* size */
    put_tag(pb, "data");
    put_be32(pb, 1);
    put_be32(pb, 0);
    put_buffer(pb, data, strlen(data));
    return updateSize(pb, pos);
}

/* iTunes name of the song/movie */
static int mov_write_nam_tag(ByteIOContext *pb, MOVContext* mov,
                             AVFormatContext *s)
{
    int size = 0;
    if ( s->title[0] ) {
        int pos = url_ftell(pb);
        put_be32(pb, 0); /* size */
        put_tag(pb, "\251nam");
        mov_write_string_data_tag(pb, mov, s, s->title);
        size = updateSize(pb, pos);
    }
    return size;
}

/* iTunes name of the artist/performer */
static int mov_write_ART_tag(ByteIOContext *pb, MOVContext* mov,
                             AVFormatContext *s)
{
    int size = 0;
    if ( s->author[0] ) {
        int pos = url_ftell(pb);
        put_be32(pb, 0); /* size */
        put_tag(pb, "\251ART");
        // we use the author here as this is the only thing that we have...
        mov_write_string_data_tag(pb, mov, s, s->author);
        size = updateSize(pb, pos);
    }
    return size;
}

/* iTunes name of the writer */
static int mov_write_wrt_tag(ByteIOContext *pb, MOVContext* mov,
                             AVFormatContext *s)
{
    int size = 0;
    if ( s->author[0] ) {
        int pos = url_ftell(pb);
        put_be32(pb, 0); /* size */
        put_tag(pb, "\251wrt");
        mov_write_string_data_tag(pb, mov, s, s->author);
        size = updateSize(pb, pos);
    }
    return size;
}

/* iTunes name of the album */
static int mov_write_alb_tag(ByteIOContext *pb, MOVContext* mov,
                             AVFormatContext *s)
{
    int size = 0;
    if ( s->album[0] ) {
        int pos = url_ftell(pb);
        put_be32(pb, 0); /* size */
        put_tag(pb, "\251alb");
        mov_write_string_data_tag(pb, mov, s, s->album);
        size = updateSize(pb, pos);
    }
    return size;
}

/* iTunes year */
static int mov_write_day_tag(ByteIOContext *pb, MOVContext* mov,
                             AVFormatContext *s)
{
    char year[5];
    int size = 0;
    if ( s->year ) {
        int pos = url_ftell(pb);
        put_be32(pb, 0); /* size */
        put_tag(pb, "\251day");
        snprintf(year, 5, "%04d", s->year);
        mov_write_string_data_tag(pb, mov, s, year);
        size = updateSize(pb, pos);
    }
    return size;
}

/* iTunes tool used to create the file */
static int mov_write_too_tag(ByteIOContext *pb, MOVContext* mov,
                             AVFormatContext *s)
{
    int pos = url_ftell(pb);
    put_be32(pb, 0); /* size */
    put_tag(pb, "\251too");
    mov_write_string_data_tag(pb, mov, s, LIBAVFORMAT_IDENT);
    return updateSize(pb, pos);
}

/* iTunes comment */
static int mov_write_cmt_tag(ByteIOContext *pb, MOVContext* mov,
                             AVFormatContext *s)
{
    int size = 0;
    if ( s->comment[0] ) {
        int pos = url_ftell(pb);
        put_be32(pb, 0); /* size */
        put_tag(pb, "\251cmt");
        mov_write_string_data_tag(pb, mov, s, s->comment);
        size = updateSize(pb, pos);
    }
    return size;
}

/* iTunes custom genre */
static int mov_write_gen_tag(ByteIOContext *pb, MOVContext* mov,
                             AVFormatContext *s)
{
    int size = 0;
    if ( s->genre[0] ) {
        int pos = url_ftell(pb);
        put_be32(pb, 0); /* size */
        put_tag(pb, "\251gen");
        mov_write_string_data_tag(pb, mov, s, s->genre);
        size = updateSize(pb, pos);
    }
    return size;
}

/* iTunes track number */
static int mov_write_trkn_tag(ByteIOContext *pb, MOVContext* mov,
                              AVFormatContext *s)
{
    int size = 0;
    if ( s->track ) {
        int pos = url_ftell(pb);
        put_be32(pb, 0); /* size */
        put_tag(pb, "trkn");
        {
            int pos = url_ftell(pb);
            put_be32(pb, 0); /* size */
            put_tag(pb, "data");
            put_be32(pb, 0);        // 8 bytes empty
            put_be32(pb, 0);
            put_be16(pb, 0);        // empty
            put_be16(pb, s->track); // track number
            put_be16(pb, 0);        // total track number
            put_be16(pb, 0);        // empty
            updateSize(pb, pos);
        }
        size = updateSize(pb, pos);
    }
    return size;
}

/* iTunes meta data list */
static int mov_write_ilst_tag(ByteIOContext *pb, MOVContext* mov,
                              AVFormatContext *s)
{
    int pos = url_ftell(pb);
    put_be32(pb, 0); /* size */
    put_tag(pb, "ilst");
    mov_write_nam_tag(pb, mov, s);
    mov_write_ART_tag(pb, mov, s);
    mov_write_wrt_tag(pb, mov, s);
    mov_write_alb_tag(pb, mov, s);
    mov_write_day_tag(pb, mov, s);
    mov_write_too_tag(pb, mov, s);
    mov_write_cmt_tag(pb, mov, s);
    mov_write_gen_tag(pb, mov, s);
    mov_write_trkn_tag(pb, mov, s);
    return updateSize(pb, pos);
}

/* iTunes meta data tag */
static int mov_write_meta_tag(ByteIOContext *pb, MOVContext* mov,
                              AVFormatContext *s)
{
    int size = 0;

    // only save meta tag if required
    if ( s->title[0] || s->author[0] || s->album[0] || s->year || 
         s->comment[0] || s->genre[0] || s->track ) {
        int pos = url_ftell(pb);
        put_be32(pb, 0); /* size */
        put_tag(pb, "meta");
        put_be32(pb, 0);
        mov_write_itunes_hdlr_tag(pb, mov, s);
        mov_write_ilst_tag(pb, mov, s);
        size = updateSize(pb, pos);
    }
    return size;
}
    
1071 1072 1073 1074 1075 1076 1077 1078 1079
static int mov_write_udta_tag(ByteIOContext *pb, MOVContext* mov,
                              AVFormatContext *s)
{
    int pos = url_ftell(pb);
    int i;

    put_be32(pb, 0); /* size */
    put_tag(pb, "udta");

1080 1081 1082
    /* iTunes meta data */
    mov_write_meta_tag(pb, mov, s);

1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100
    /* Requirements */
    for (i=0; i<MAX_STREAMS; i++) {
        if(mov->tracks[i].entry <= 0) continue;
        if (mov->tracks[i].enc->codec_id == CODEC_ID_AAC ||
            mov->tracks[i].enc->codec_id == CODEC_ID_MPEG4) {
            int pos = url_ftell(pb);
            put_be32(pb, 0); /* size */
            put_tag(pb, "\251req");
            put_be16(pb, sizeof("QuickTime 6.0 or greater") - 1);
            put_be16(pb, 0);
            put_buffer(pb, "QuickTime 6.0 or greater",
                       sizeof("QuickTime 6.0 or greater") - 1);
            updateSize(pb, pos);
            break;
        }
    }

    /* Encoder */
1101
    if(mov->tracks[0].enc && !(mov->tracks[0].enc->flags & CODEC_FLAG_BITEXACT))
1102 1103 1104