movenc.c 53.6 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
 *
 * 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
static unsigned int descrLength(unsigned int len)
{
Michael Niedermayer's avatar
Michael Niedermayer committed
229 230 231
    int i;
    for(i=1; len>>(7*i); i++);
    return len + 1 + i;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
232 233
}

Michael Niedermayer's avatar
Michael Niedermayer committed
234
static void putDescr(ByteIOContext *pb, int tag, unsigned int size)
Baptiste Coudurier's avatar
Baptiste Coudurier committed
235
{
Michael Niedermayer's avatar
Michael Niedermayer committed
236 237 238 239 240
    int i= descrLength(size) - size - 2;
    put_byte(pb, tag);
    for(; i>0; i--)
        put_byte(pb, (size>>(7*i)) | 0x80);
    put_byte(pb, size & 0x7F);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
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
}

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);
}

296 297
static int mov_write_wave_tag(ByteIOContext *pb, MOVTrack* track)
{
298
    offset_t pos = url_ftell(pb);
299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322

    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);
}

323
static const CodecTag codec_movaudio_tags[] = {
324 325 326 327 328 329 330
    { 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') },
331
    { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') },
332 333 334
    { 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') },
335
    { CODEC_ID_NONE, 0 },
336 337
};

338
static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
339
{
340
    offset_t pos = url_ftell(pb);
341

342
    put_be32(pb, 0); /* size */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
343
    put_le32(pb, track->tag); // store it byteswapped
344 345 346
    put_be32(pb, 0); /* Reserved */
    put_be16(pb, 0); /* Reserved */
    put_be16(pb, 1); /* Data-reference index, XXX  == 1 */
347

348
    /* SoundDescription */
349 350 351 352
    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 */
353
    put_be16(pb, 0); /* Revision level */
354 355
    put_be32(pb, 0); /* Reserved */

356 357
    put_be16(pb, track->enc->channels); /* Number of channels */
    /* TODO: Currently hard-coded to 16-bit, there doesn't seem
358
                 to be a good way to get number of bits of audio */
359
    put_be16(pb, 0x10); /* Reserved */
360 361

    if(track->enc->codec_id == CODEC_ID_AAC ||
Baptiste Coudurier's avatar
Baptiste Coudurier committed
362
       track->enc->codec_id == CODEC_ID_MP3) {
363 364
        put_be16(pb, 0xfffe); /* compression ID (vbr)*/
    }
Baptiste Coudurier's avatar
Baptiste Coudurier committed
365
    else {
366 367
        put_be16(pb, 0); /* compression ID (= 0) */
    }
368
    put_be16(pb, 0); /* packet size (= 0) */
369 370 371
    put_be16(pb, track->timescale); /* Time scale */
    put_be16(pb, 0); /* Reserved */

Baptiste Coudurier's avatar
Baptiste Coudurier committed
372
    if(track->mode == MODE_MOV && track->enc->codec_id == CODEC_ID_AAC) {
373 374 375 376 377 378 379 380 381 382 383
        /* 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);
    }
384 385
    if(track->enc->codec_id == CODEC_ID_AMR_NB)
        mov_write_damr_tag(pb);
386
    return updateSize (pb, pos);
387 388
}

389
static int mov_write_d263_tag(ByteIOContext *pb)
390 391 392 393 394 395 396 397 398
{
    put_be32(pb, 0xf); /* size */
    put_tag(pb, "d263");
    put_tag(pb, "FFMP");
    put_be16(pb, 0x0a);
    put_byte(pb, 0);
    return 0xf;
}

399 400
/* TODO: No idea about these values */
static int mov_write_svq3_tag(ByteIOContext *pb)
401
{
402 403 404 405 406 407
    put_be32(pb, 0x15);
    put_tag(pb, "SMI ");
    put_tag(pb, "SEQH");
    put_be32(pb, 0x5);
    put_be32(pb, 0xe2c0211d);
    put_be32(pb, 0xc0000000);
408
    put_byte(pb, 0);
409
    return 0x15;
410 411
}

412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502
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);
503 504 505 506 507 508 509 510

            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) */

511 512 513 514 515 516 517 518 519 520 521 522
            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);
}

523
static const CodecTag codec_movvideo_tags[] = {
524 525 526 527
    { 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') },
528
    { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
529 530 531 532 533 534 535
    /* 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 },
536 537
};

Baptiste Coudurier's avatar
Baptiste Coudurier committed
538
static int mov_find_video_codec_tag(AVFormatContext *s, MOVTrack *track)
539
{
Baptiste Coudurier's avatar
Baptiste Coudurier committed
540
    int tag = track->enc->codec_tag;
541 542 543 544 545 546 547 548 549 550 551 552
    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
553 554
                else
                    tag = MKTAG('d', 'v', 'p', 'p');
555 556 557 558 559 560
            }
        } 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
561
    if (!tag) {
562
        tag = codec_get_tag(codec_bmp_tags, track->enc->codec_id);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584
        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");
        }
    }
585 586 587 588
    assert(tag);
    return tag;
}

589
static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
590
{
591
    offset_t pos = url_ftell(pb);
592
    char compressor_name[32];
593

594
    put_be32(pb, 0); /* size */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
595
    put_le32(pb, track->tag); // store it byteswapped
596 597 598 599
    put_be32(pb, 0); /* Reserved */
    put_be16(pb, 0); /* Reserved */
    put_be16(pb, 1); /* Data-reference index */

600 601 602 603 604 605 606 607 608 609
    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 */
    }
610 611
    put_be16(pb, track->enc->width); /* Video width */
    put_be16(pb, track->enc->height); /* Video height */
612 613
    put_be32(pb, 0x00480000); /* Horizontal resolution 72dpi */
    put_be32(pb, 0x00480000); /* Vertical resolution 72dpi */
614 615
    put_be32(pb, 0); /* Data size (= 0) */
    put_be16(pb, 1); /* Frame count (= 1) */
616

617
    memset(compressor_name,0,32);
618
    if (track->enc->codec && track->enc->codec->name)
619
        strncpy(compressor_name,track->enc->codec->name,31);
620
    put_byte(pb, strlen(compressor_name));
621
    put_buffer(pb, compressor_name, 31);
622

623 624 625 626 627 628 629
    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)
630
        mov_write_svq3_tag(pb);
631 632
    else if(track->enc->codec_id == CODEC_ID_H264)
        mov_write_avcc_tag(pb, track);
633 634

    return updateSize (pb, pos);
635 636
}

637
static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
638
{
639
    offset_t pos = url_ftell(pb);
640 641 642 643
    put_be32(pb, 0); /* size */
    put_tag(pb, "stsd");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, 1); /* entry count */
644 645 646 647
    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);
648
    return updateSize(pb, pos);
649 650
}

651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685
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
686
/* TODO: */
687
/* Time to sample atom */
688
static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
689 690 691 692 693 694
{
    put_be32(pb, 0x18); /* size */
    put_tag(pb, "stts");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, 1); /* entry count */

695 696
    put_be32(pb, track->sampleCount); /* sample count */
    put_be32(pb, track->sampleDuration); /* sample duration */
697 698 699
    return 0x18;
}

700
static int mov_write_dref_tag(ByteIOContext *pb)
701 702 703 704 705 706 707 708 709 710 711 712 713
{
    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;
}

714
static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack* track)
715
{
716
    offset_t pos = url_ftell(pb);
717 718
    put_be32(pb, 0); /* size */
    put_tag(pb, "stbl");
719 720
    mov_write_stsd_tag(pb, track);
    mov_write_stts_tag(pb, track);
721
    if (track->enc->codec_type == CODEC_TYPE_VIDEO &&
722
        track->hasKeyframes < track->entry)
723
        mov_write_stss_tag(pb, track);
724 725 726
    if (track->enc->codec_type == CODEC_TYPE_VIDEO &&
        track->hasBframes)
        mov_write_ctts_tag(pb, track);
727 728 729 730
    mov_write_stsc_tag(pb, track);
    mov_write_stsz_tag(pb, track);
    mov_write_stco_tag(pb, track);
    return updateSize(pb, pos);
731 732
}

733
static int mov_write_dinf_tag(ByteIOContext *pb)
734
{
735
    offset_t pos = url_ftell(pb);
736 737
    put_be32(pb, 0); /* size */
    put_tag(pb, "dinf");
738 739
    mov_write_dref_tag(pb);
    return updateSize(pb, pos);
740 741
}

742
static int mov_write_smhd_tag(ByteIOContext *pb)
743 744 745 746 747 748 749 750 751
{
    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;
}

752
static int mov_write_vmhd_tag(ByteIOContext *pb)
753 754 755 756 757 758 759 760
{
    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;
}

761
static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
762
{
763
    char *descr, *hdlr, *hdlr_type;
764
    offset_t pos = url_ftell(pb);
765

766
    if (!track) { /* no media --> data handler */
767 768 769
        hdlr = "dhlr";
        hdlr_type = "url ";
        descr = "DataHandler";
770
    } else {
771 772 773 774 775 776 777 778
        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";
        }
779
    }
780

781
    put_be32(pb, 0); /* size */
782 783
    put_tag(pb, "hdlr");
    put_be32(pb, 0); /* Version & flags */
784
    put_buffer(pb, hdlr, 4); /* handler */
785
    put_tag(pb, hdlr_type); /* handler type */
786 787 788
    put_be32(pb ,0); /* reserved */
    put_be32(pb ,0); /* reserved */
    put_be32(pb ,0); /* reserved */
789 790 791 792 793 794 795
    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)
{
796
    offset_t pos = url_ftell(pb);
797 798
    put_be32(pb, 0); /* size */
    put_tag(pb, "minf");
799
    if(track->enc->codec_type == CODEC_TYPE_VIDEO)
800
        mov_write_vmhd_tag(pb);
801
    else
802 803 804 805 806
        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);
807
    return updateSize(pb, pos);
808 809
}

810
static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
811
{
812 813 814
    int version = track->trackDuration < INT32_MAX ? 0 : 1;

    (version == 1) ? put_be32(pb, 44) : put_be32(pb, 32); /* size */
815
    put_tag(pb, "mdhd");
816 817 818 819 820 821 822 823 824
    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 */
    }
825
    put_be32(pb, track->timescale); /* time scale (sample rate for audio) */
826
    (version == 1) ? put_be64(pb, track->trackDuration) : put_be32(pb, track->trackDuration); /* duration */
827
    put_be16(pb, track->language); /* language */
828 829 830 831
    put_be16(pb, 0); /* reserved (quality) */
    return 32;
}

832
static int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack* track)
833
{
834
    offset_t pos = url_ftell(pb);
835 836
    put_be32(pb, 0); /* size */
    put_tag(pb, "mdia");
837 838 839 840
    mov_write_mdhd_tag(pb, track);
    mov_write_hdlr_tag(pb, track);
    mov_write_minf_tag(pb, track);
    return updateSize(pb, pos);
841 842
}

843
static int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack* track)
844
{
845 846 847 848
    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 */
849
    put_tag(pb, "tkhd");
850 851 852 853 854 855 856 857 858
    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 */
    }
859 860
    put_be32(pb, track->trackID); /* track-id */
    put_be32(pb, 0); /* reserved */
861
    (version == 1) ? put_be64(pb, duration) : put_be32(pb, duration);
862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885

    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) {
886 887 888
        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);
889
        put_be32(pb, track->enc->height*0x10000);
890 891 892 893 894 895 896 897
    }
    else {
        put_be32(pb, 0);
        put_be32(pb, 0);
    }
    return 0x5c;
}

898 899 900 901 902 903 904 905 906 907
// 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
908
    put_be32(pb, av_rescale_rnd(track->trackDuration, globalTimescale, track->timescale, AV_ROUND_UP)); /* duration   ... doesn't seem to effect psp */
909

910 911 912 913
    if (track->hasBframes)
        put_be32(pb, track->sampleDuration); /* first pts is 1 */
    else
        put_be32(pb, 0);
914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936
    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;
}

937
static int mov_write_trak_tag(ByteIOContext *pb, MOVTrack* track)
938
{
939
    offset_t pos = url_ftell(pb);
940 941
    put_be32(pb, 0); /* size */
    put_tag(pb, "trak");
942
    mov_write_tkhd_tag(pb, track);
943
    if (track->mode