movenc.c 51.3 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
    int         entry;
    long        timescale;
    long        time;
52
    int64_t     trackDuration;
53 54
    long        sampleCount;
    long        sampleDuration;
55
    long        sampleSize;
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;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
65
    MOVIentry   *cluster;
66 67
} 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
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, track->entry); /* entry count */
    for (i=0; i<track->entry; i++) {
104
        if(mode64 == 1)
Baptiste Coudurier's avatar
Baptiste Coudurier committed
105
            put_be64(pb, track->cluster[i].pos);
106
        else
Baptiste Coudurier's avatar
Baptiste Coudurier committed
107
            put_be32(pb, track->cluster[i].pos);
108
    }
109
    return updateSize (pb, pos);
110 111
}

112
/* Sample size atom */
113
static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack* track)
114
{
115
    int equalChunks = 1;
116
    int i, j, entries = 0, tst = -1, oldtst = -1;
117

118
    offset_t pos = url_ftell(pb);
119
    put_be32(pb, 0); /* size */
120 121 122
    put_tag(pb, "stsz");
    put_be32(pb, 0); /* version & flags */

123
    for (i=0; i<track->entry; i++) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
124
        tst = track->cluster[i].size/track->cluster[i].entries;
125 126
        if(oldtst != -1 && tst != oldtst) {
            equalChunks = 0;
127 128
        }
        oldtst = tst;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
129
        entries += track->cluster[i].entries;
130
    }
131
    if (equalChunks) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
132
        int sSize = track->cluster[0].size/track->cluster[0].entries;
133
        put_be32(pb, sSize); // sample size
134
        put_be32(pb, entries); // sample count
135
    }
136
    else {
137 138
        put_be32(pb, 0); // sample size
        put_be32(pb, entries); // sample count
139
        for (i=0; i<track->entry; i++) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
140 141 142
            for ( j=0; j<track->cluster[i].entries; j++) {
                put_be32(pb, track->cluster[i].size /
                         track->cluster[i].entries);
143
            }
144 145
        }
    }
146
    return updateSize (pb, pos);
147 148
}

149
/* Sample to chunk atom */
150
static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack* track)
151
{
152 153
    int index = 0, oldval = -1, i;
    offset_t entryPos, curpos;
154

155
    offset_t pos = url_ftell(pb);
156
    put_be32(pb, 0); /* size */
157
    put_tag(pb, "stsc");
158
    put_be32(pb, 0); // version & flags
159
    entryPos = url_ftell(pb);
160
    put_be32(pb, track->entry); // entry count
161
    for (i=0; i<track->entry; i++) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
162
        if(oldval != track->cluster[i].samplesInChunk)
163
        {
164
            put_be32(pb, i+1); // first chunk
Baptiste Coudurier's avatar
Baptiste Coudurier committed
165
            put_be32(pb, track->cluster[i].samplesInChunk); // samples per chunk
166
            put_be32(pb, 0x1); // sample description index
Baptiste Coudurier's avatar
Baptiste Coudurier committed
167
            oldval = track->cluster[i].samplesInChunk;
168
            index++;
169 170
        }
    }
171 172
    curpos = url_ftell(pb);
    url_fseek(pb, entryPos, SEEK_SET);
173
    put_be32(pb, index); // rewrite size
174
    url_fseek(pb, curpos, SEEK_SET);
175

176
    return updateSize (pb, pos);
177 178
}

179
/* Sync sample atom */
180
static int mov_write_stss_tag(ByteIOContext *pb, MOVTrack* track)
181
{
182 183 184
    offset_t curpos, entryPos;
    int i, index = 0;
    offset_t pos = url_ftell(pb);
185
    put_be32(pb, 0); // size
186
    put_tag(pb, "stss");
187
    put_be32(pb, 0); // version & flags
188
    entryPos = url_ftell(pb);
189
    put_be32(pb, track->entry); // entry count
190
    for (i=0; i<track->entry; i++) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
191
        if(track->cluster[i].key_frame == 1) {
192 193 194 195 196 197
            put_be32(pb, i+1);
            index++;
        }
    }
    curpos = url_ftell(pb);
    url_fseek(pb, entryPos, SEEK_SET);
198
    put_be32(pb, index); // rewrite size
199 200
    url_fseek(pb, curpos, SEEK_SET);
    return updateSize (pb, pos);
201 202
}

203
static int mov_write_amr_tag(ByteIOContext *pb, MOVTrack *track)
204 205
{
    put_be32(pb, 0x11); /* size */
206 207
    if (track->mode == MODE_MOV) put_tag(pb, "samr");
    else                         put_tag(pb, "damr");
208
    put_tag(pb, "FFMP");
209
    put_byte(pb, 0); /* decoder version */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
210

Baptiste Coudurier's avatar
Baptiste Coudurier committed
211
    put_be16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
212 213
    put_byte(pb, 0x00); /* Mode change period (no restriction) */
    put_byte(pb, 0x01); /* Frames per sample */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
214 215 216
    return 0x11;
}

217 218 219 220 221 222 223 224
static int mov_write_enda_tag(ByteIOContext *pb)
{
    put_be32(pb, 10);
    put_tag(pb, "enda");
    put_be16(pb, 1); /* little endian */
    return 10;
}

Baptiste Coudurier's avatar
Baptiste Coudurier committed
225 226
static unsigned int descrLength(unsigned int len)
{
Michael Niedermayer's avatar
Michael Niedermayer committed
227 228 229
    int i;
    for(i=1; len>>(7*i); i++);
    return len + 1 + i;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
230 231
}

Michael Niedermayer's avatar
Michael Niedermayer committed
232
static void putDescr(ByteIOContext *pb, int tag, unsigned int size)
Baptiste Coudurier's avatar
Baptiste Coudurier committed
233
{
Michael Niedermayer's avatar
Michael Niedermayer committed
234 235 236 237 238
    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
239 240 241 242 243
}

static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack* track) // Basic
{
    offset_t pos = url_ftell(pb);
244
    int decoderSpecificInfoLen = track->vosLen ? descrLength(track->vosLen):0;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
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

    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);
}

292 293
static int mov_write_wave_tag(ByteIOContext *pb, MOVTrack* track)
{
294
    offset_t pos = url_ftell(pb);
295 296 297 298 299 300

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

    put_be32(pb, 12);    /* size */
    put_tag(pb, "frma");
301
    put_le32(pb, track->tag);
302

303
    if (track->enc->codec_id == CODEC_ID_AAC) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
304 305 306 307
        /* useless atom needed by mplayer, ipod, not needed by quicktime */
        put_be32(pb, 12); /* size */
        put_tag(pb, "mp4a");
        put_be32(pb, 0);
308 309 310 311
        mov_write_esds_tag(pb, track);
    } else if (track->enc->codec_id == CODEC_ID_PCM_S24LE ||
               track->enc->codec_id == CODEC_ID_PCM_S32LE) {
        mov_write_enda_tag(pb);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
312
    } else if (track->enc->codec_id == CODEC_ID_AMR_NB) {
313
        mov_write_amr_tag(pb, track);
314
    }
315 316 317 318 319 320 321

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

    return updateSize (pb, pos);
}

322
static const CodecTag codec_movaudio_tags[] = {
323 324 325 326 327 328 329
    { 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') },
330
    { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') },
331 332
    { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') },
    { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') },
333 334 335 336
    { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
    { CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
    { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
    { CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
337
    { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') },
338
    { CODEC_ID_NONE, 0 },
339 340
};

341
static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
342
{
343
    offset_t pos = url_ftell(pb);
344 345 346
    int vbr=  track->enc->codec_id == CODEC_ID_AAC ||
              track->enc->codec_id == CODEC_ID_MP3 ||
              track->enc->codec_id == CODEC_ID_AMR_NB;
347
    int version = track->mode == MODE_MOV &&
348
        (vbr ||
349 350
         track->enc->codec_id == CODEC_ID_PCM_S32LE ||
         track->enc->codec_id == CODEC_ID_PCM_S24LE);
351

352
    put_be32(pb, 0); /* size */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
353
    put_le32(pb, track->tag); // store it byteswapped
354 355 356
    put_be32(pb, 0); /* Reserved */
    put_be16(pb, 0); /* Reserved */
    put_be16(pb, 1); /* Data-reference index, XXX  == 1 */
357

358
    /* SoundDescription */
359
    put_be16(pb, version); /* Version */
360
    put_be16(pb, 0); /* Revision level */
361 362
    put_be32(pb, 0); /* Reserved */

363 364
    put_be16(pb, track->enc->channels); /* Number of channels */
    /* TODO: Currently hard-coded to 16-bit, there doesn't seem
365
                 to be a good way to get number of bits of audio */
366
    put_be16(pb, 0x10); /* Reserved */
367

368
    if(vbr) {
369
        put_be16(pb, 0xfffe); /* compression ID (vbr)*/
Baptiste Coudurier's avatar
Baptiste Coudurier committed
370
    } else {
371 372
        put_be16(pb, 0); /* compression ID (= 0) */
    }
373
    put_be16(pb, 0); /* packet size (= 0) */
374 375 376
    put_be16(pb, track->timescale); /* Time scale */
    put_be16(pb, 0); /* Reserved */

377
    if(version == 1) { /* SoundDescription V1 extended info */
378 379
        if (vbr)
            track->sampleSize = 0;
380
        put_be32(pb, track->enc->frame_size); /* Samples per packet */
381
        put_be32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */
382
        put_be32(pb, track->sampleSize); /* Bytes per frame */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
383
        put_be32(pb, 2); /* Bytes per sample */
384 385
    }

386 387 388 389 390
    if(track->mode == MODE_MOV &&
       (track->enc->codec_id == CODEC_ID_AAC ||
        track->enc->codec_id == CODEC_ID_AMR_NB ||
        track->enc->codec_id == CODEC_ID_PCM_S24LE ||
        track->enc->codec_id == CODEC_ID_PCM_S32LE))
391
        mov_write_wave_tag(pb, track);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
392 393 394
    else if(track->enc->codec_id == CODEC_ID_AAC)
        mov_write_esds_tag(pb, track);
    else if(track->enc->codec_id == CODEC_ID_AMR_NB)
395
        mov_write_amr_tag(pb, track);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
396

397
    return updateSize (pb, pos);
398 399
}

400
static int mov_write_d263_tag(ByteIOContext *pb)
401 402 403 404 405 406 407 408 409
{
    put_be32(pb, 0xf); /* size */
    put_tag(pb, "d263");
    put_tag(pb, "FFMP");
    put_be16(pb, 0x0a);
    put_byte(pb, 0);
    return 0xf;
}

410 411
/* TODO: No idea about these values */
static int mov_write_svq3_tag(ByteIOContext *pb)
412
{
413 414 415 416 417 418
    put_be32(pb, 0x15);
    put_tag(pb, "SMI ");
    put_tag(pb, "SEQH");
    put_be32(pb, 0x5);
    put_be32(pb, 0xe2c0211d);
    put_be32(pb, 0xc0000000);
419
    put_byte(pb, 0);
420
    return 0x15;
421 422
}

423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438
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 )
Baptiste Coudurier's avatar
Baptiste Coudurier committed
439
                    return p-1;
440
                if( p[2] == 0 && p[3] == 1 )
Baptiste Coudurier's avatar
Baptiste Coudurier committed
441
                    return p;
442 443 444
            }
            if( p[3] == 0 ) {
                if( p[2] == 0 && p[4] == 1 )
Baptiste Coudurier's avatar
Baptiste Coudurier committed
445
                    return p+1;
446
                if( p[4] == 0 && p[5] == 1 )
Baptiste Coudurier's avatar
Baptiste Coudurier committed
447
                    return p+2;
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
            }
        }
    }

    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);
514 515 516 517 518 519 520 521

            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) */

522 523 524 525 526 527 528 529 530 531 532 533
            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);
}

534
static const CodecTag codec_movvideo_tags[] = {
535 536 537 538
    { 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') },
539
    { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
540 541 542 543 544 545 546
    /* 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 },
547 548
};

Baptiste Coudurier's avatar
Baptiste Coudurier committed
549
static int mov_find_video_codec_tag(AVFormatContext *s, MOVTrack *track)
550
{
Baptiste Coudurier's avatar
Baptiste Coudurier committed
551
    int tag = track->enc->codec_tag;
552 553 554 555 556 557 558 559 560 561 562 563
    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
564 565
                else
                    tag = MKTAG('d', 'v', 'p', 'p');
566 567 568 569 570 571
            }
        } 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
572
    if (!tag) {
573
        tag = codec_get_tag(codec_bmp_tags, track->enc->codec_id);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595
        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");
        }
    }
596 597 598 599
    assert(tag);
    return tag;
}

600
static int mov_write_video_tag(ByteIOContext *pb, MOVTrack* track)
601
{
602
    offset_t pos = url_ftell(pb);
603
    char compressor_name[32];
604

605
    put_be32(pb, 0); /* size */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
606
    put_le32(pb, track->tag); // store it byteswapped
607 608 609 610
    put_be32(pb, 0); /* Reserved */
    put_be16(pb, 0); /* Reserved */
    put_be16(pb, 1); /* Data-reference index */

611 612 613 614 615 616 617 618 619 620
    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 */
    }
621 622
    put_be16(pb, track->enc->width); /* Video width */
    put_be16(pb, track->enc->height); /* Video height */
623 624
    put_be32(pb, 0x00480000); /* Horizontal resolution 72dpi */
    put_be32(pb, 0x00480000); /* Vertical resolution 72dpi */
625 626
    put_be32(pb, 0); /* Data size (= 0) */
    put_be16(pb, 1); /* Frame count (= 1) */
627

628
    memset(compressor_name,0,32);
629
    if (track->enc->codec && track->enc->codec->name)
630
        strncpy(compressor_name,track->enc->codec->name,31);
631
    put_byte(pb, strlen(compressor_name));
632
    put_buffer(pb, compressor_name, 31);
633

634 635 636 637 638 639 640
    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)
641
        mov_write_svq3_tag(pb);
642 643
    else if(track->enc->codec_id == CODEC_ID_H264)
        mov_write_avcc_tag(pb, track);
644 645

    return updateSize (pb, pos);
646 647
}

648
static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack* track)
649
{
650
    offset_t pos = url_ftell(pb);
651 652 653 654
    put_be32(pb, 0); /* size */
    put_tag(pb, "stsd");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, 1); /* entry count */
655 656 657 658
    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);
659
    return updateSize(pb, pos);
660 661
}

662 663 664 665 666 667 668 669 670
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;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
671
    ctts_entries[0].duration = track->cluster[0].cts;
672
    for (i=1; i<track->entry; i++) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
673
        if (track->cluster[i].cts == ctts_entries[entries].duration) {
674 675 676
            ctts_entries[entries].count++; /* compress */
        } else {
            entries++;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
677
            ctts_entries[entries].duration = track->cluster[i].cts;
678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694
            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
695
/* TODO: */
696
/* Time to sample atom */
697
static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack* track)
698 699 700 701 702 703
{
    put_be32(pb, 0x18); /* size */
    put_tag(pb, "stts");
    put_be32(pb, 0); /* version & flags */
    put_be32(pb, 1); /* entry count */

704 705
    put_be32(pb, track->sampleCount); /* sample count */
    put_be32(pb, track->sampleDuration); /* sample duration */
706 707 708
    return 0x18;
}

709
static int mov_write_dref_tag(ByteIOContext *pb)
710 711 712 713 714 715 716 717 718 719 720 721 722
{
    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;
}

723
static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack* track)
724
{
725
    offset_t pos = url_ftell(pb);
726 727
    put_be32(pb, 0); /* size */
    put_tag(pb, "stbl");
728 729
    mov_write_stsd_tag(pb, track);
    mov_write_stts_tag(pb, track);
730
    if (track->enc->codec_type == CODEC_TYPE_VIDEO &&
731
        track->hasKeyframes < track->entry)
732
        mov_write_stss_tag(pb, track);
733 734 735
    if (track->enc->codec_type == CODEC_TYPE_VIDEO &&
        track->hasBframes)
        mov_write_ctts_tag(pb, track);
736 737 738 739
    mov_write_stsc_tag(pb, track);
    mov_write_stsz_tag(pb, track);
    mov_write_stco_tag(pb, track);
    return updateSize(pb, pos);
740 741
}

742
static int mov_write_dinf_tag(ByteIOContext *pb)
743
{
744
    offset_t pos = url_ftell(pb);
745 746
    put_be32(pb, 0); /* size */
    put_tag(pb, "dinf");
747 748
    mov_write_dref_tag(pb);
    return updateSize(pb, pos);
749 750
}

751
static int mov_write_smhd_tag(ByteIOContext *pb)
752 753 754 755 756 757 758 759 760
{
    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;
}

761
static int mov_write_vmhd_tag(ByteIOContext *pb)
762 763 764 765 766 767 768 769
{
    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;
}

770
static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack* track)
771
{
772
    const char *descr, *hdlr, *hdlr_type;
773
    offset_t pos = url_ftell(pb);
774

775
    if (!track) { /* no media --> data handler */
776 777 778
        hdlr = "dhlr";
        hdlr_type = "url ";
        descr = "DataHandler";
779
    } else {
780 781 782 783 784 785 786 787
        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";
        }
788
    }
789

790
    put_be32(pb, 0); /* size */
791 792
    put_tag(pb, "hdlr");
    put_be32(pb, 0); /* Version & flags */
793
    put_buffer(pb, hdlr, 4); /* handler */
794
    put_tag(pb, hdlr_type); /* handler type */
795 796 797
    put_be32(pb ,0); /* reserved */
    put_be32(pb ,0); /* reserved */
    put_be32(pb ,0); /* reserved */
798 799 800 801 802 803 804
    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)
{
805
    offset_t pos = url_ftell(pb);
806 807
    put_be32(pb, 0); /* size */
    put_tag(pb, "minf");
808
    if(track->enc->codec_type == CODEC_TYPE_VIDEO)
809
        mov_write_vmhd_tag(pb);
810
    else
811 812 813 814 815
        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);
816
    return updateSize(pb, pos);
817 818
}

819
static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack* track)
820
{
821 822 823
    int version = track->trackDuration < INT32_MAX ? 0 : 1;

    (version == 1) ? put_be32(pb, 44) : put_be32(pb, 32); /* size */
824
    put_tag(pb, "mdhd");
825 826 827 828 829 830 831 832 833
    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 */
    }
834
    put_be32(pb, track->timescale); /* time scale (sample rate for audio) */
835
    (version == 1) ? put_be64(pb, track->trackDuration) : put_be32(pb, track->trackDuration); /* duration */
836
    put_be16(pb, track->language); /* language */
837 838 839 840
    put_be16(pb, 0); /* reserved (quality) */
    return 32;
}

841
static int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack* track)
842
{
843
    offset_t pos = url_ftell(pb);
844 845
    put_be32(pb, 0); /* size */
    put_tag(pb, "mdia");
846 847 848 849
    mov_write_mdhd_tag(pb, track);
    mov_write_hdlr_tag(pb, track);
    mov_write_minf_tag(pb, track);
    return updateSize(pb, pos);