movenc.c 54.4 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
 *
 * 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
18
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 20
 */
#include "avformat.h"
21
#include "avi.h"
22
#include "avio.h"
23
#include "mov.h"
24

25 26 27
#undef NDEBUG
#include <assert.h>

28 29 30
#define MOV_INDEX_CLUSTER_SIZE 16384
#define globalTimescale 1000

31 32 33
#define MODE_MP4 0
#define MODE_MOV 1
#define MODE_3GP 2
34
#define MODE_PSP 3 // example working PSP command line:
35
// ffmpeg -i testinput.avi  -f psp -r 14.985 -s 320x240 -b 768 -ar 24000 -ab 32 M4V00001.MP4
36
#define MODE_3G2 4
37

38
typedef struct MOVIentry {
39 40
    unsigned int flags, size;
    uint64_t     pos;
41
    unsigned int samplesInChunk;
42
    char         key_frame;
43
    unsigned int entries;
44
    int64_t      cts;
45 46 47
} MOVIentry;

typedef struct MOVIndex {
48
    int         mode;
49 50 51 52
    int         entry;
    int         ents_allocated;
    long        timescale;
    long        time;
53
    int64_t     trackDuration;
54 55
    long        sampleCount;
    long        sampleDuration;
56
    int         hasKeyframes;
57
    int         hasBframes;
58
    int         language;
59
    int         trackID;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
60
    int         tag;
61 62 63
    AVCodecContext *enc;

    int         vosLen;
64
    uint8_t     *vosData;
65 66 67
    MOVIentry** cluster;
} MOVTrack;

68
typedef struct MOVContext {
69
    int     mode;
70
    int64_t time;
71
    int     nb_streams;
72
    offset_t mdat_pos;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
73
    uint64_t mdat_size;
74 75 76 77
    long    timescale;
    MOVTrack tracks[MAX_STREAMS];
} MOVContext;

78
//FIXME supprt 64bit varaint with wide placeholders
79
static offset_t updateSize (ByteIOContext *pb, offset_t pos)
80
{
81
    offset_t curpos = url_ftell(pb);
82
    url_fseek(pb, pos, SEEK_SET);
83
    put_be32(pb, curpos - pos); /* rewrite size */
84
    url_fseek(pb, curpos, SEEK_SET);
85 86

    return curpos - pos;
87 88
}

89
/* Chunk offset atom */
90
static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack* track)
91 92
{
    int i;
Benjamin Larsson's avatar
Benjamin Larsson committed
93
    int mode64 = 0; //   use 32 bit size variant if possible
94
    offset_t pos = url_ftell(pb);
95
    put_be32(pb, 0); /* size */
96 97 98 99 100
    if (pos > UINT32_MAX) {
        mode64 = 1;
        put_tag(pb, "co64");
    } else
        put_tag(pb, "stco");
101 102 103 104 105
    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;
106 107 108 109
        if(mode64 == 1)
            put_be64(pb, track->cluster[cl][id].pos);
        else
            put_be32(pb, track->cluster[cl][id].pos);
110
    }
111
    return updateSize (pb, pos);
112 113
}

114
/* Sample size atom */
115
static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
116
{
117
    int equalChunks = 1;
118
    int i, j, entries = 0, tst = -1, oldtst = -1;
119

120
    offset_t pos = url_ftell(pb);
121
    put_be32(pb, 0); /* size */
122 123 124
    put_tag(pb, "stsz");
    put_be32(pb, 0); /* version & flags */

125 126 127
    for (i=0; i<track->entry; i++) {
        int cl = i / MOV_INDEX_CLUSTER_SIZE;
        int id = i % MOV_INDEX_CLUSTER_SIZE;
128 129 130
        tst = track->cluster[cl][id].size/track->cluster[cl][id].entries;
        if(oldtst != -1 && tst != oldtst) {
            equalChunks = 0;
131 132
        }
        oldtst = tst;
133
        entries += track->cluster[cl][id].entries;
134
    }
135 136
    if (equalChunks) {
        int sSize = track->cluster[0][0].size/track->cluster[0][0].entries;
137
        put_be32(pb, sSize); // sample size
138
        put_be32(pb, entries); // sample count
139
    }
140
    else {
141 142
        put_be32(pb, 0); // sample size
        put_be32(pb, entries); // sample count
143
        for (i=0; i<track->entry; i++) {
144 145
            int cl = i / MOV_INDEX_CLUSTER_SIZE;
            int id = i % MOV_INDEX_CLUSTER_SIZE;
146 147 148 149
            for ( j=0; j<track->cluster[cl][id].entries; j++) {
                put_be32(pb, track->cluster[cl][id].size /
                         track->cluster[cl][id].entries);
            }
150 151
        }
    }
152
    return updateSize (pb, pos);
153 154
}

155
/* Sample to chunk atom */
156
static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack* track)
157
{
158 159
    int index = 0, oldval = -1, i;
    offset_t entryPos, curpos;
160

161
    offset_t pos = url_ftell(pb);
162
    put_be32(pb, 0); /* size */
163
    put_tag(pb, "stsc");
164
    put_be32(pb, 0); // version & flags
165
    entryPos = url_ftell(pb);
166
    put_be32(pb, track->entry); // entry count
167 168 169
    for (i=0; i<track->entry; i++) {
        int cl = i / MOV_INDEX_CLUSTER_SIZE;
        int id = i % MOV_INDEX_CLUSTER_SIZE;
170
        if(oldval != track->cluster[cl][id].samplesInChunk)
171
        {
172
            put_be32(pb, i+1); // first chunk
173
            put_be32(pb, track->cluster[cl][id].samplesInChunk); // samples per chunk
174
            put_be32(pb, 0x1); // sample description index
175
            oldval = track->cluster[cl][id].samplesInChunk;
176
            index++;
177 178
        }
    }
179 180
    curpos = url_ftell(pb);
    url_fseek(pb, entryPos, SEEK_SET);
181
    put_be32(pb, index); // rewrite size
182
    url_fseek(pb, curpos, SEEK_SET);
183

184
    return updateSize (pb, pos);
185 186
}

187
/* Sync sample atom */
188
static int mov_write_stss_tag(ByteIOContext *pb, MOVTrack* track)
189
{
190 191 192
    offset_t curpos, entryPos;
    int i, index = 0;
    offset_t pos = url_ftell(pb);
193
    put_be32(pb, 0); // size
194
    put_tag(pb, "stss");
195
    put_be32(pb, 0); // version & flags
196
    entryPos = url_ftell(pb);
197
    put_be32(pb, track->entry); // entry count
198 199 200 201 202 203 204 205 206 207
    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);
208
    put_be32(pb, index); // rewrite size
209 210
    url_fseek(pb, curpos, SEEK_SET);
    return updateSize (pb, pos);
211 212
}

213
static int mov_write_damr_tag(ByteIOContext *pb)
214 215 216 217 218
{
    put_be32(pb, 0x11); /* size */
    put_tag(pb, "damr");
    put_tag(pb, "FFMP");
    put_byte(pb, 0);
219

220 221 222 223
    //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) */
224 225 226
    return 0x11;
}

Baptiste Coudurier's avatar
Baptiste Coudurier committed
227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331
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)
{
    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]);
    }
}

static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track) // Basic
{
    int decoderSpecificInfoLen;
    offset_t pos = url_ftell(pb);

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

    put_be32(pb, 0);               // size
    put_tag(pb, "esds");
    put_be32(pb, 0);               // Version

    // ES descriptor
    putDescr(pb, 0x03, 3 + descrLength(13 + decoderSpecificInfoLen) +
             descrLength(1));
    put_be16(pb, track->trackID);
    put_byte(pb, 0x00);            // flags (= no flags)

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

    // Object type indication
    put_byte(pb, codec_get_tag(ff_mov_obj_type, track->enc->codec_id));

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

    put_byte(pb,  track->enc->rc_buffer_size>>(3+16));             // Buffersize DB (24 bits)
    put_be16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF);          // Buffersize DB

    put_be32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate));     // maxbitrate  (FIXME should be max rate in any 1 sec window)
    if(track->enc->rc_max_rate != track->enc->rc_min_rate || track->enc->rc_min_rate==0)
        put_be32(pb, 0);     // vbr
    else
        put_be32(pb, track->enc->rc_max_rate);     // avg bitrate

    if (track->vosLen)
    {
        // DecoderSpecific info descriptor
        putDescr(pb, 0x05, track->vosLen);
        put_buffer(pb, track->vosData, track->vosLen);
    }


    // SL descriptor
    putDescr(pb, 0x06, 1);
    put_byte(pb, 0x02);
    return updateSize (pb, pos);
}

332 333
static int mov_write_wave_tag(ByteIOContext *pb, MOVTrack* track)
{
334
    offset_t pos = url_ftell(pb);
335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358

    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);
}

359
static const CodecTag codec_movaudio_tags[] = {
360 361 362 363 364 365 366
    { 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') },
367
    { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') },
368 369 370
    { 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') },
371
    { CODEC_ID_NONE, 0 },
372 373
};

374
static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
375
{
376
    offset_t pos = url_ftell(pb);
377

378
    put_be32(pb, 0); /* size */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
379
    put_le32(pb, track->tag); // store it byteswapped
380 381 382
    put_be32(pb, 0); /* Reserved */
    put_be16(pb, 0); /* Reserved */
    put_be16(pb, 1); /* Data-reference index, XXX  == 1 */
383

384
    /* SoundDescription */
385 386 387 388
    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 */
389
    put_be16(pb, 0); /* Revision level */
390 391
    put_be32(pb, 0); /* Reserved */

392 393
    put_be16(pb, track->enc->channels); /* Number of channels */
    /* TODO: Currently hard-coded to 16-bit, there doesn't seem
394
                 to be a good way to get number of bits of audio */
395
    put_be16(pb, 0x10); /* Reserved */
396 397

    if(track->enc->codec_id == CODEC_ID_AAC ||
Baptiste Coudurier's avatar
Baptiste Coudurier committed
398
       track->enc->codec_id == CODEC_ID_MP3) {
399 400
        put_be16(pb, 0xfffe); /* compression ID (vbr)*/
    }
Baptiste Coudurier's avatar
Baptiste Coudurier committed
401
    else {
402 403
        put_be16(pb, 0); /* compression ID (= 0) */
    }
404
    put_be16(pb, 0); /* packet size (= 0) */
405 406 407
    put_be16(pb, track->timescale); /* Time scale */
    put_be16(pb, 0); /* Reserved */

Baptiste Coudurier's avatar
Baptiste Coudurier committed
408
    if(track->mode == MODE_MOV && track->enc->codec_id == CODEC_ID_AAC) {
409 410 411 412 413 414 415 416 417 418 419
        /* 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);
    }
420 421
    if(track->enc->codec_id == CODEC_ID_AMR_NB)
        mov_write_damr_tag(pb);
422
    return updateSize (pb, pos);
423 424
}

425
static int mov_write_d263_tag(ByteIOContext *pb)
426 427 428 429 430 431 432 433 434
{
    put_be32(pb, 0xf); /* size */
    put_tag(pb, "d263");
    put_tag(pb, "FFMP");
    put_be16(pb, 0x0a);
    put_byte(pb, 0);
    return 0xf;
}

435 436
/* TODO: No idea about these values */
static int mov_write_svq3_tag(ByteIOContext *pb)
437
{
438 439 440 441 442 443
    put_be32(pb, 0x15);
    put_tag(pb, "SMI ");
    put_tag(pb, "SEQH");
    put_be32(pb, 0x5);
    put_be32(pb, 0xe2c0211d);
    put_be32(pb, 0xc0000000);
444
    put_byte(pb, 0);
445
    return 0x15;
446 447
}

448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538
static uint8_t *avc_find_startcode( uint8_t *p, uint8_t *end )
{
    uint8_t *a = p + 4 - ((int)p & 3);

    for( end -= 3; p < a && p < end; p++ ) {
        if( p[0] == 0 && p[1] == 0 && p[2] == 1 )
            return p;
    }

    for( end -= 3; p < end; p += 4 ) {
        uint32_t x = *(uint32_t*)p;
//      if( (x - 0x01000100) & (~x) & 0x80008000 ) // little endian
//      if( (x - 0x00010001) & (~x) & 0x00800080 ) // big endian
        if( (x - 0x01010101) & (~x) & 0x80808080 ) { // generic
            if( p[1] == 0 ) {
                if( p[0] == 0 && p[2] == 1 )
                    return p;
                if( p[2] == 0 && p[3] == 1 )
                    return p+1;
            }
            if( p[3] == 0 ) {
                if( p[2] == 0 && p[4] == 1 )
                    return p+2;
                if( p[4] == 0 && p[5] == 1 )
                    return p+3;
            }
        }
    }

    for( end += 3; p < end; p++ ) {
        if( p[0] == 0 && p[1] == 0 && p[2] == 1 )
            return p;
    }

    return end + 3;
}

static void avc_parse_nal_units(uint8_t **buf, int *size)
{
    ByteIOContext pb;
    uint8_t *p = *buf;
    uint8_t *end = p + *size;
    uint8_t *nal_start, *nal_end;

    url_open_dyn_buf(&pb);
    nal_start = avc_find_startcode(p, end);
    while (nal_start < end) {
        while(!*(nal_start++));
        nal_end = avc_find_startcode(nal_start, end);
        put_be32(&pb, nal_end - nal_start);
        put_buffer(&pb, nal_start, nal_end - nal_start);
        nal_start = nal_end;
    }
    av_freep(buf);
    *size = url_close_dyn_buf(&pb, buf);
}

static int mov_write_avcc_tag(ByteIOContext *pb, MOVTrack *track)
{
    offset_t pos = url_ftell(pb);

    put_be32(pb, 0);
    put_tag(pb, "avcC");
    if (track->vosLen > 6) {
        /* check for h264 start code */
        if (BE_32(track->vosData) == 0x00000001) {
            uint8_t *buf, *end;
            uint32_t sps_size=0, pps_size=0;
            uint8_t *sps=0, *pps=0;

            avc_parse_nal_units(&track->vosData, &track->vosLen);
            buf = track->vosData;
            end = track->vosData + track->vosLen;

            /* look for sps and pps */
            while (buf < end) {
                unsigned int size;
                uint8_t nal_type;
                size = BE_32(buf);
                nal_type = buf[4] & 0x1f;
                if (nal_type == 7) { /* SPS */
                    sps = buf + 4;
                    sps_size = size;
                } else if (nal_type == 8) { /* PPS */
                    pps = buf + 4;
                    pps_size = size;
                }
                buf += size + 4;
            }
            assert(sps);
            assert(pps);
539 540 541 542 543 544 545 546

            put_byte(pb, 1); /* version */
            put_byte(pb, sps[1]); /* profile */
            put_byte(pb, sps[2]); /* profile compat */
            put_byte(pb, sps[3]); /* level */
            put_byte(pb, 0xff); /* 6 bits reserved (111111) + 2 bits nal size length - 1 (11) */
            put_byte(pb, 0xe1); /* 3 bits reserved (111) + 5 bits number of sps (00001) */

547 548 549 550 551 552 553 554 555 556 557 558
            put_be16(pb, sps_size);
            put_buffer(pb, sps, sps_size);
            put_byte(pb, 1); /* number of pps */
            put_be16(pb, pps_size);
            put_buffer(pb, pps, pps_size);
        } else {
            put_buffer(pb, track->vosData, track->vosLen);
        }
    }
    return updateSize(pb, pos);
}

559
static const CodecTag codec_movvideo_tags[] = {
560 561 562 563
    { 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') },
564
    { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
565 566 567 568 569 570 571
    /* special handling in mov_find_video_codec_tag */
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL */
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC */
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL */
    { CODEC_ID_NONE, 0 },
572 573
};

Baptiste Coudurier's avatar
Baptiste Coudurier committed
574
static int mov_find_video_codec_tag(AVFormatContext *s, MOVTrack *track)
575
{
Baptiste Coudurier's avatar
Baptiste Coudurier committed
576
    int tag = track->enc->codec_tag;
577 578 579 580 581 582 583 584 585 586 587 588
    if (!tag) {
        if (track->enc->codec_id == CODEC_ID_DVVIDEO) {
            if (track->enc->height == 480) { /* NTSC */
                if (track->enc->pix_fmt == PIX_FMT_YUV422P)
                    tag = MKTAG('d', 'v', '5', 'n');
                else
                    tag = MKTAG('d', 'v', 'c', ' ');
            } else { /* assume PAL */
                if (track->enc->pix_fmt == PIX_FMT_YUV422P)
                    tag = MKTAG('d', 'v', '5', 'p');
                else if (track->enc->pix_fmt == PIX_FMT_YUV420P)
                    tag = MKTAG('d', 'v', 'c', 'p');
Baptiste Coudurier's avatar
Baptiste Coudurier committed
589 590
                else
                    tag = MKTAG('d', 'v', 'p', 'p');
591 592 593 594 595 596
            }
        } else {
            tag = codec_get_tag(codec_movvideo_tags, track->enc->codec_id);
        }
    }
    // if no mac fcc found, try with Microsoft tags
Baptiste Coudurier's avatar
Baptiste Coudurier committed
597
    if (!tag) {
598
        tag = codec_get_tag(codec_bmp_tags, track->enc->codec_id);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620
        if (tag) {
            av_log(s, AV_LOG_INFO, "Warning, using MS style video codec tag, the file may be unplayable!\n");
        }
    }
    assert(tag);
    return tag;
}

static int mov_find_audio_codec_tag(AVFormatContext *s, MOVTrack *track)
{
    int tag = track->enc->codec_tag;
    if (!tag) {
        tag = codec_get_tag(codec_movaudio_tags, track->enc->codec_id);
    }
    // if no mac fcc found, try with Microsoft tags
    if (!tag) {
        int ms_tag = codec_get_tag(codec_wav_tags, track->enc->codec_id);
        if (ms_tag) {
            tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
            av_log(s, AV_LOG_INFO, "Warning, using MS style audio codec tag, the file may be unplayable!\n");
        }
    }
621 622 623 624
    assert(tag);
    return tag;
}

625
static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
626
{
627
    offset_t pos = url_ftell(pb);
628
    char compressor_name[32];
629

630
    put_be32(pb, 0); /* size */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
631
    put_le32(pb, track->tag); // store it byteswapped
632 633 634 635
    put_be32(pb, 0); /* Reserved */
    put_be16(pb, 0); /* Reserved */
    put_be16(pb, 1); /* Data-reference index */

636 637 638 639 640 641 642 643 644 645
    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 */
    }
646 647
    put_be16(pb, track->enc->width); /* Video width */
    put_be16(pb, track->enc->height); /* Video height */
648 649
    put_be32(pb, 0x00480000); /* Horizontal resolution 72dpi */
    put_be32(pb, 0x00480000); /* Vertical resolution 72dpi */
650 651
    put_be32(pb, 0); /* Data size (= 0) */
    put_be16(pb, 1); /* Frame count (= 1) */
652

653
    memset(compressor_name,0,32);
654
    if (track->enc->codec && track->enc->codec->name)
655
        strncpy(compressor_name,track->enc->codec->name,31);
656
    put_byte(pb, strlen(compressor_name));
657
    put_buffer(pb, compressor_name, 31);
658

659 660 661 662 663 664 665
    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)
666
        mov_write_svq3_tag(pb);
667 668
    else if(track->enc->codec_id == CODEC_ID_H264)
        mov_write_avcc_tag(pb, track);
669 670

    return updateSize (pb, pos);
671 672
}

673
static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
674
{
675
    offset_t pos = url_ftell(pb);
676 677 678 679
    put_be32(pb, 0); /* size */
    put_tag(pb, "stsd");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, 1); /* entry count */
680 681 682 683
    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);
684
    return updateSize(pb, pos);
685 686
}

687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721
static int mov_write_ctts_tag(ByteIOContext *pb, MOVTrack* track)
{
    Time2Sample *ctts_entries;
    uint32_t entries = 0;
    uint32_t atom_size;
    int i;

    ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
    ctts_entries[0].count = 1;
    ctts_entries[0].duration = track->cluster[0][0].cts;
    for (i=1; i<track->entry; i++) {
        int cl = i / MOV_INDEX_CLUSTER_SIZE;
        int id = i % MOV_INDEX_CLUSTER_SIZE;
        if (track->cluster[cl][id].cts == ctts_entries[entries].duration) {
            ctts_entries[entries].count++; /* compress */
        } else {
            entries++;
            ctts_entries[entries].duration = track->cluster[cl][id].cts;
            ctts_entries[entries].count = 1;
        }
    }
    entries++; /* last one */
    atom_size = 16 + (entries * 8);
    put_be32(pb, atom_size); /* size */
    put_tag(pb, "ctts");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, entries); /* entry count */
    for (i=0; i<entries; i++) {
        put_be32(pb, ctts_entries[i].count);
        put_be32(pb, ctts_entries[i].duration);
    }
    av_free(ctts_entries);
    return atom_size;
}

Michael Niedermayer's avatar
Michael Niedermayer committed
722
/* TODO: */
723
/* Time to sample atom */
724
static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
725 726 727 728 729 730
{
    put_be32(pb, 0x18); /* size */
    put_tag(pb, "stts");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, 1); /* entry count */

731 732
    put_be32(pb, track->sampleCount); /* sample count */
    put_be32(pb, track->sampleDuration); /* sample duration */
733 734 735
    return 0x18;
}

736
static int mov_write_dref_tag(ByteIOContext *pb)
737 738 739 740 741 742 743 744 745 746 747 748 749
{
    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;
}

750
static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack* track)
751
{
752
    offset_t pos = url_ftell(pb);
753 754
    put_be32(pb, 0); /* size */
    put_tag(pb, "stbl");
755 756
    mov_write_stsd_tag(pb, track);
    mov_write_stts_tag(pb, track);
757
    if (track->enc->codec_type == CODEC_TYPE_VIDEO &&
758
        track->hasKeyframes < track->entry)
759
        mov_write_stss_tag(pb, track);
760 761 762
    if (track->enc->codec_type == CODEC_TYPE_VIDEO &&
        track->hasBframes)
        mov_write_ctts_tag(pb, track);
763 764 765 766
    mov_write_stsc_tag(pb, track);
    mov_write_stsz_tag(pb, track);
    mov_write_stco_tag(pb, track);
    return updateSize(pb, pos);
767 768
}

769
static int mov_write_dinf_tag(ByteIOContext *pb)
770
{
771
    offset_t pos = url_ftell(pb);
772 773
    put_be32(pb, 0); /* size */
    put_tag(pb, "dinf");
774 775
    mov_write_dref_tag(pb);
    return updateSize(pb, pos);
776 777
}

778
static int mov_write_smhd_tag(ByteIOContext *pb)
779 780 781 782 783 784 785 786 787
{
    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;
}

788
static int mov_write_vmhd_tag(ByteIOContext *pb)
789 790 791 792 793 794 795 796
{
    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;
}

797
static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
798
{
799
    char *descr, *hdlr, *hdlr_type;
800
    offset_t pos = url_ftell(pb);
801

802
    if (!track) { /* no media --> data handler */
803 804 805
        hdlr = "dhlr";
        hdlr_type = "url ";
        descr = "DataHandler";
806
    } else {
807 808 809 810 811 812 813 814
        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";
        }
815
    }
816

817
    put_be32(pb, 0); /* size */
818 819
    put_tag(pb, "hdlr");
    put_be32(pb, 0); /* Version & flags */
820
    put_buffer(pb, hdlr, 4); /* handler */
821
    put_tag(pb, hdlr_type); /* handler type */
822 823 824
    put_be32(pb ,0); /* reserved */
    put_be32(pb ,0); /* reserved */
    put_be32(pb ,0); /* reserved */
825 826 827 828 829 830 831
    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)
{
832
    offset_t pos = url_ftell(pb);
833 834
    put_be32(pb, 0); /* size */
    put_tag(pb, "minf");
835
    if(track->enc->codec_type == CODEC_TYPE_VIDEO)
836
        mov_write_vmhd_tag(pb);
837
    else
838 839 840 841 842
        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);
843
    return updateSize(pb, pos);
844 845
}

846
static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
847
{
848 849 850
    int version = track->trackDuration < INT32_MAX ? 0 : 1;

    (version == 1) ? put_be32(pb, 44) : put_be32(pb, 32); /* size */
851
    put_tag(pb, "mdhd");
852 853 854 855 856 857 858 859 860
    put_byte(pb, version);
    put_be24(pb, 0); /* flags */
    if (version == 1) {
        put_be64(pb, track->time);
        put_be64(pb, track->time);
    } else {
        put_be32(pb, track->time); /* creation time */
        put_be32(pb, track->time); /* modification time */
    }
861
    put_be32(pb, track->timescale); /* time scale (sample rate for audio) */
862
    (version == 1) ? put_be64(pb, track->trackDuration) : put_be32(pb, track->trackDuration); /* duration */
863
    put_be16(pb, track->language); /* language */
864 865 866 867
    put_be16(pb, 0); /* reserved (quality) */
    return 32;
}

868
static int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack* track)
869
{
870
    offset_t pos = url_ftell(pb);
871 872
    put_be32(pb, 0); /* size */
    put_tag(pb, "mdia");
873 874 875 876
    mov_write_mdhd_tag(pb, track);
    mov_write_hdlr_tag(pb, track);
    mov_write_minf_tag(pb, track);
    return updateSize(pb, pos);
877 878
}

879
static int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack* track)
880
{
881 882 883 884
    int64_t duration = av_rescale_rnd(track->trackDuration, globalTimescale, track->timescale, AV_ROUND_UP);
    int version = duration < INT32_MAX ? 0 : 1;

    (version == 1) ? put_be32(pb, 104) : put_be32(pb, 92); /* size */
885
    put_tag(pb, "tkhd");
886 887 888 889 890 891 892 893 894
    put_byte(pb, version);
    put_be24(pb, 0xf); /* flags (track enabled) */
    if (version == 1) {
        put_be64(pb, track->time);
        put_be64(pb, track->time);
    } else {
        put_be32(pb, track->time); /* creation time */
        put_be32(pb, track->time); /* modification time */
    }
895 896
    put_be32(pb, track->trackID); /* track-id */
    put_be32(pb, 0); /* reserved */
897
    (version == 1) ? put_be64(pb, duration) : put_be32(pb, duration);
898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921

    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) {
922 923 924
        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);
925
        put_be32(pb, track->enc->height*0x10000);
926 927 928 929 930 931 932 933
    }
    else {
        put_be32(pb, 0);
        put_be32(pb, 0);
    }
    return 0x5c;
}

934 935 936 937 938 939 940 941 942 943
// 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)
{
    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);

Michael Niedermayer's avatar
Michael Niedermayer committed
944
    put_be32(pb, av_rescale_rnd(track->trackDuration, globalTimescale, track->timescale, AV_ROUND_UP)); /* duration   ... doesn't seem to effect psp */
945

946 947 948 949
    if (track->hasBframes)
        put_be32(pb, track->sampleDuration); /* first pts is 1 */
    else
        put_be32(pb, 0);
950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972
    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;
}

973
static int mov_write_trak_tag(ByteIOContext *pb, MOVTrack* track)
974
{