movenc.c 82.3 KB
Newer Older
1
/*
2
 * MOV, 3GP, MP4 muxer
3 4
 * Copyright (c) 2003 Thomas Raivio
 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
5
 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
6
 *
7
 * This file is part of Libav.
8
 *
9
 * Libav is free software; you can redistribute it and/or
10 11
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
12
 * version 2.1 of the License, or (at your option) any later version.
13
 *
14
 * Libav is distributed in the hope that it will be useful,
15 16 17 18 19
 * 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
20
 * License along with Libav; if not, write to the Free Software
21
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22
 */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
23

24
#include "movenc.h"
25
#include "avformat.h"
26
#include "avio_internal.h"
27
#include "riff.h"
28
#include "avio.h"
29
#include "isom.h"
30
#include "avc.h"
31
#include "libavcodec/get_bits.h"
32
#include "libavcodec/put_bits.h"
33 34
#include "internal.h"
#include "libavutil/avstring.h"
35
#include "libavutil/intfloat_readwrite.h"
36
#include "libavutil/mathematics.h"
37
#include "libavutil/opt.h"
38
#include "libavutil/dict.h"
39
#include "rtpenc.h"
40

41 42 43
#undef NDEBUG
#include <assert.h>

44
static const AVOption options[] = {
45 46
    { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.dbl = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
    { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.dbl = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
47
    FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
48 49 50
    { NULL },
};

51 52 53 54 55 56
#define MOV_CLASS(flavor)\
static const AVClass flavor ## _muxer_class = {\
    .class_name = #flavor " muxer",\
    .item_name  = av_default_item_name,\
    .option     = options,\
    .version    = LIBAVUTIL_VERSION_INT,\
57 58
};

Diego Biurrun's avatar
Diego Biurrun committed
59
//FIXME support 64 bit variant with wide placeholders
60
static int64_t updateSize(AVIOContext *pb, int64_t pos)
61
{
62
    int64_t curpos = avio_tell(pb);
63
    avio_seek(pb, pos, SEEK_SET);
64
    avio_wb32(pb, curpos - pos); /* rewrite size */
65
    avio_seek(pb, curpos, SEEK_SET);
66 67

    return curpos - pos;
68 69
}

70
/* Chunk offset atom */
71
static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
72 73
{
    int i;
Benjamin Larsson's avatar
Benjamin Larsson committed
74
    int mode64 = 0; //   use 32 bit size variant if possible
75
    int64_t pos = avio_tell(pb);
76
    avio_wb32(pb, 0); /* size */
77 78
    if (pos > UINT32_MAX) {
        mode64 = 1;
79
        ffio_wfourcc(pb, "co64");
80
    } else
81
        ffio_wfourcc(pb, "stco");
82 83
    avio_wb32(pb, 0); /* version & flags */
    avio_wb32(pb, track->entry); /* entry count */
84
    for (i=0; i<track->entry; i++) {
85
        if(mode64 == 1)
86
            avio_wb64(pb, track->cluster[i].pos);
87
        else
88
            avio_wb32(pb, track->cluster[i].pos);
89
    }
Baptiste Coudurier's avatar
Baptiste Coudurier committed
90
    return updateSize(pb, pos);
91 92
}

93
/* Sample size atom */
94
static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
95
{
96
    int equalChunks = 1;
97
    int i, j, entries = 0, tst = -1, oldtst = -1;
98

99
    int64_t pos = avio_tell(pb);
100
    avio_wb32(pb, 0); /* size */
101
    ffio_wfourcc(pb, "stsz");
102
    avio_wb32(pb, 0); /* version & flags */
103

104
    for (i=0; i<track->entry; i++) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
105
        tst = track->cluster[i].size/track->cluster[i].entries;
106 107
        if(oldtst != -1 && tst != oldtst) {
            equalChunks = 0;
108 109
        }
        oldtst = tst;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
110
        entries += track->cluster[i].entries;
111
    }
112
    if (equalChunks) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
113
        int sSize = track->cluster[0].size/track->cluster[0].entries;
Alex Converse's avatar
Alex Converse committed
114
        sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
115 116
        avio_wb32(pb, sSize); // sample size
        avio_wb32(pb, entries); // sample count
117
    }
118
    else {
119 120
        avio_wb32(pb, 0); // sample size
        avio_wb32(pb, entries); // sample count
121
        for (i=0; i<track->entry; i++) {
122
            for (j=0; j<track->cluster[i].entries; j++) {
123
                avio_wb32(pb, track->cluster[i].size /
Baptiste Coudurier's avatar
Baptiste Coudurier committed
124
                         track->cluster[i].entries);
125
            }
126 127
        }
    }
Baptiste Coudurier's avatar
Baptiste Coudurier committed
128
    return updateSize(pb, pos);
129 130
}

131
/* Sample to chunk atom */
132
static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
133
{
134
    int index = 0, oldval = -1, i;
135
    int64_t entryPos, curpos;
136

137
    int64_t pos = avio_tell(pb);
138
    avio_wb32(pb, 0); /* size */
139
    ffio_wfourcc(pb, "stsc");
140
    avio_wb32(pb, 0); // version & flags
141
    entryPos = avio_tell(pb);
142
    avio_wb32(pb, track->entry); // entry count
143
    for (i=0; i<track->entry; i++) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
144
        if(oldval != track->cluster[i].samplesInChunk)
145
        {
146 147 148
            avio_wb32(pb, i+1); // first chunk
            avio_wb32(pb, track->cluster[i].samplesInChunk); // samples per chunk
            avio_wb32(pb, 0x1); // sample description index
Baptiste Coudurier's avatar
Baptiste Coudurier committed
149
            oldval = track->cluster[i].samplesInChunk;
150
            index++;
151 152
        }
    }
153
    curpos = avio_tell(pb);
154
    avio_seek(pb, entryPos, SEEK_SET);
155
    avio_wb32(pb, index); // rewrite size
156
    avio_seek(pb, curpos, SEEK_SET);
157

Baptiste Coudurier's avatar
Baptiste Coudurier committed
158
    return updateSize(pb, pos);
159 160
}

161
/* Sync sample atom */
162
static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
163
{
164
    int64_t curpos, entryPos;
165
    int i, index = 0;
166
    int64_t pos = avio_tell(pb);
167
    avio_wb32(pb, 0); // size
168
    ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
169
    avio_wb32(pb, 0); // version & flags
170
    entryPos = avio_tell(pb);
171
    avio_wb32(pb, track->entry); // entry count
172
    for (i=0; i<track->entry; i++) {
173
        if (track->cluster[i].flags & flag) {
174
            avio_wb32(pb, i+1);
175 176 177
            index++;
        }
    }
178
    curpos = avio_tell(pb);
179
    avio_seek(pb, entryPos, SEEK_SET);
180
    avio_wb32(pb, index); // rewrite size
181
    avio_seek(pb, curpos, SEEK_SET);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
182
    return updateSize(pb, pos);
183 184
}

185
static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
186
{
187
    avio_wb32(pb, 0x11); /* size */
188 189 190
    if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
    else                         ffio_wfourcc(pb, "damr");
    ffio_wfourcc(pb, "FFMP");
191
    avio_w8(pb, 0); /* decoder version */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
192

193 194 195
    avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
    avio_w8(pb, 0x00); /* Mode change period (no restriction) */
    avio_w8(pb, 0x01); /* Frames per sample */
Baptiste Coudurier's avatar
Baptiste Coudurier committed
196 197 198
    return 0x11;
}

199
static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
200 201 202 203 204 205 206 207 208
{
    GetBitContext gbc;
    PutBitContext pbc;
    uint8_t buf[3];
    int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;

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

209
    avio_wb32(pb, 11);
210
    ffio_wfourcc(pb, "dac3");
211

212
    init_get_bits(&gbc, track->vosData+4, (track->vosLen-4) * 8);
213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237
    fscod      = get_bits(&gbc, 2);
    frmsizecod = get_bits(&gbc, 6);
    bsid       = get_bits(&gbc, 5);
    bsmod      = get_bits(&gbc, 3);
    acmod      = get_bits(&gbc, 3);
    if (acmod == 2) {
        skip_bits(&gbc, 2); // dsurmod
    } else {
        if ((acmod & 1) && acmod != 1)
            skip_bits(&gbc, 2); // cmixlev
        if (acmod & 4)
            skip_bits(&gbc, 2); // surmixlev
    }
    lfeon = get_bits1(&gbc);

    init_put_bits(&pbc, buf, sizeof(buf));
    put_bits(&pbc, 2, fscod);
    put_bits(&pbc, 5, bsid);
    put_bits(&pbc, 3, bsmod);
    put_bits(&pbc, 3, acmod);
    put_bits(&pbc, 1, lfeon);
    put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code
    put_bits(&pbc, 5, 0); // reserved

    flush_put_bits(&pbc);
238
    avio_write(pb, buf, sizeof(buf));
239 240 241 242

    return 11;
}

Baptiste Coudurier's avatar
Baptiste Coudurier committed
243 244 245 246
/**
 * This function writes extradata "as is".
 * Extradata must be formated like a valid atom (with size and tag)
 */
247
static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
Baptiste Coudurier's avatar
Baptiste Coudurier committed
248
{
249
    avio_write(pb, track->enc->extradata, track->enc->extradata_size);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
250 251 252
    return track->enc->extradata_size;
}

253
static int mov_write_enda_tag(AVIOContext *pb)
254
{
255
    avio_wb32(pb, 10);
256
    ffio_wfourcc(pb, "enda");
257
    avio_wb16(pb, 1); /* little endian */
258 259 260
    return 10;
}

261
static void putDescr(AVIOContext *pb, int tag, unsigned int size)
Baptiste Coudurier's avatar
Baptiste Coudurier committed
262
{
263
    int i = 3;
264
    avio_w8(pb, tag);
Michael Niedermayer's avatar
Michael Niedermayer committed
265
    for(; i>0; i--)
266 267
        avio_w8(pb, (size>>(7*i)) | 0x80);
    avio_w8(pb, size & 0x7F);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
268 269
}

270
static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
Baptiste Coudurier's avatar
Baptiste Coudurier committed
271
{
272
    int64_t pos = avio_tell(pb);
273
    int decoderSpecificInfoLen = track->vosLen ? 5+track->vosLen : 0;
Baptiste Coudurier's avatar
Baptiste Coudurier committed
274

275
    avio_wb32(pb, 0); // size
276
    ffio_wfourcc(pb, "esds");
277
    avio_wb32(pb, 0); // Version
Baptiste Coudurier's avatar
Baptiste Coudurier committed
278 279

    // ES descriptor
280
    putDescr(pb, 0x03, 3 + 5+13 + decoderSpecificInfoLen + 5+1);
281 282
    avio_wb16(pb, track->trackID);
    avio_w8(pb, 0x00); // flags (= no flags)
Baptiste Coudurier's avatar
Baptiste Coudurier committed
283 284 285 286 287

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

    // Object type indication
288 289
    if ((track->enc->codec_id == CODEC_ID_MP2 ||
         track->enc->codec_id == CODEC_ID_MP3) &&
290
        track->enc->sample_rate > 24000)
291
        avio_w8(pb, 0x6B); // 11172-3
292
    else
293
        avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
Baptiste Coudurier's avatar
Baptiste Coudurier committed
294 295 296

    // 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)
297
    if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
298
        avio_w8(pb, 0x15); // flags (= Audiostream)
Baptiste Coudurier's avatar
Baptiste Coudurier committed
299
    else
300
        avio_w8(pb, 0x11); // flags (= Visualstream)
Baptiste Coudurier's avatar
Baptiste Coudurier committed
301

302 303
    avio_w8(pb,  track->enc->rc_buffer_size>>(3+16));      // Buffersize DB (24 bits)
    avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB
Baptiste Coudurier's avatar
Baptiste Coudurier committed
304

305
    avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
Baptiste Coudurier's avatar
Baptiste Coudurier committed
306
    if(track->enc->rc_max_rate != track->enc->rc_min_rate || track->enc->rc_min_rate==0)
307
        avio_wb32(pb, 0); // vbr
Baptiste Coudurier's avatar
Baptiste Coudurier committed
308
    else
309
        avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
Baptiste Coudurier's avatar
Baptiste Coudurier committed
310

311
    if (track->vosLen) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
312 313
        // DecoderSpecific info descriptor
        putDescr(pb, 0x05, track->vosLen);
314
        avio_write(pb, track->vosData, track->vosLen);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
315 316 317 318
    }

    // SL descriptor
    putDescr(pb, 0x06, 1);
319
    avio_w8(pb, 0x02);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
320
    return updateSize(pb, pos);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
321 322
}

323 324 325 326 327 328 329 330
static int mov_pcm_le_gt16(enum CodecID codec_id)
{
    return codec_id == CODEC_ID_PCM_S24LE ||
           codec_id == CODEC_ID_PCM_S32LE ||
           codec_id == CODEC_ID_PCM_F32LE ||
           codec_id == CODEC_ID_PCM_F64LE;
}

331
static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
332
{
333
    int64_t pos = avio_tell(pb);
334 335
    avio_wb32(pb, 0);
    avio_wl32(pb, track->tag); // store it byteswapped
336
    track->enc->codec_tag = av_bswap16(track->tag >> 16);
337 338 339 340
    ff_put_wav_header(pb, track->enc);
    return updateSize(pb, pos);
}

341
static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
342
{
343
    int64_t pos = avio_tell(pb);
344

345
    avio_wb32(pb, 0);     /* size */
346
    ffio_wfourcc(pb, "wave");
347

348
    avio_wb32(pb, 12);    /* size */
349
    ffio_wfourcc(pb, "frma");
350
    avio_wl32(pb, track->tag);
351

352
    if (track->enc->codec_id == CODEC_ID_AAC) {
Baptiste Coudurier's avatar
Baptiste Coudurier committed
353
        /* useless atom needed by mplayer, ipod, not needed by quicktime */
354
        avio_wb32(pb, 12); /* size */
355
        ffio_wfourcc(pb, "mp4a");
356
        avio_wb32(pb, 0);
357
        mov_write_esds_tag(pb, track);
358
    } else if (mov_pcm_le_gt16(track->enc->codec_id)) {
359
        mov_write_enda_tag(pb);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
360
    } else if (track->enc->codec_id == CODEC_ID_AMR_NB) {
361
        mov_write_amr_tag(pb, track);
362 363
    } else if (track->enc->codec_id == CODEC_ID_AC3) {
        mov_write_ac3_tag(pb, track);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
364 365
    } else if (track->enc->codec_id == CODEC_ID_ALAC) {
        mov_write_extradata_tag(pb, track);
366 367 368
    } else if (track->enc->codec_id == CODEC_ID_ADPCM_MS ||
               track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
        mov_write_ms_tag(pb, track);
369
    }
370

371 372
    avio_wb32(pb, 8);     /* size */
    avio_wb32(pb, 0);     /* null tag */
373

Baptiste Coudurier's avatar
Baptiste Coudurier committed
374
    return updateSize(pb, pos);
375 376
}

377
static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
378
{
379
    avio_wb32(pb, track->vosLen+8);
380
    ffio_wfourcc(pb, "glbl");
381
    avio_write(pb, track->vosData, track->vosLen);
382 383 384
    return 8+track->vosLen;
}

385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413
/**
 * Compute flags for 'lpcm' tag.
 * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
 */
static int mov_get_lpcm_flags(enum CodecID codec_id)
{
    switch (codec_id) {
    case CODEC_ID_PCM_F32BE:
    case CODEC_ID_PCM_F64BE:
        return 11;
    case CODEC_ID_PCM_F32LE:
    case CODEC_ID_PCM_F64LE:
        return 9;
    case CODEC_ID_PCM_U8:
        return 10;
    case CODEC_ID_PCM_S16BE:
    case CODEC_ID_PCM_S24BE:
    case CODEC_ID_PCM_S32BE:
        return 14;
    case CODEC_ID_PCM_S8:
    case CODEC_ID_PCM_S16LE:
    case CODEC_ID_PCM_S24LE:
    case CODEC_ID_PCM_S32LE:
        return 12;
    default:
        return 0;
    }
}

414
static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)
415
{
416
    int64_t pos = avio_tell(pb);
417 418 419 420 421 422 423 424
    int version = 0;
    uint32_t tag = track->tag;

    if (track->mode == MODE_MOV) {
        if (track->timescale > UINT16_MAX) {
            if (mov_get_lpcm_flags(track->enc->codec_id))
                tag = AV_RL32("lpcm");
            version = 2;
425 426 427
        } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
                   track->enc->codec_id == CODEC_ID_ADPCM_MS ||
                   track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
428 429 430
            version = 1;
        }
    }
431

432 433 434 435 436
    avio_wb32(pb, 0); /* size */
    avio_wl32(pb, tag); // store it byteswapped
    avio_wb32(pb, 0); /* Reserved */
    avio_wb16(pb, 0); /* Reserved */
    avio_wb16(pb, 1); /* Data-reference index, XXX  == 1 */
437

438
    /* SoundDescription */
439 440 441
    avio_wb16(pb, version); /* Version */
    avio_wb16(pb, 0); /* Revision level */
    avio_wb32(pb, 0); /* Reserved */
442

443
    if (version == 2) {
444 445 446 447 448 449 450 451 452 453 454 455 456
        avio_wb16(pb, 3);
        avio_wb16(pb, 16);
        avio_wb16(pb, 0xfffe);
        avio_wb16(pb, 0);
        avio_wb32(pb, 0x00010000);
        avio_wb32(pb, 72);
        avio_wb64(pb, av_dbl2int(track->timescale));
        avio_wb32(pb, track->enc->channels);
        avio_wb32(pb, 0x7F000000);
        avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
        avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
        avio_wb32(pb, track->sampleSize);
        avio_wb32(pb, track->enc->frame_size);
457
    } else {
458
        if (track->mode == MODE_MOV) {
459
            avio_wb16(pb, track->enc->channels);
460 461
            if (track->enc->codec_id == CODEC_ID_PCM_U8 ||
                track->enc->codec_id == CODEC_ID_PCM_S8)
462
                avio_wb16(pb, 8); /* bits per sample */
463
            else
464 465
                avio_wb16(pb, 16);
            avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
466
        } else { /* reserved for mp4/3gp */
467 468 469
            avio_wb16(pb, 2);
            avio_wb16(pb, 16);
            avio_wb16(pb, 0);
470
        }
471

472 473 474
        avio_wb16(pb, 0); /* packet size (= 0) */
        avio_wb16(pb, track->timescale); /* Time scale */
        avio_wb16(pb, 0); /* Reserved */
475
    }
476

477
    if(version == 1) { /* SoundDescription V1 extended info */
478 479 480 481
        avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
        avio_wb32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */
        avio_wb32(pb, track->sampleSize); /* Bytes per frame */
        avio_wb32(pb, 2); /* Bytes per sample */
482 483
    }

484 485
    if(track->mode == MODE_MOV &&
       (track->enc->codec_id == CODEC_ID_AAC ||
486
        track->enc->codec_id == CODEC_ID_AC3 ||
487
        track->enc->codec_id == CODEC_ID_AMR_NB ||
488
        track->enc->codec_id == CODEC_ID_ALAC ||
489 490
        track->enc->codec_id == CODEC_ID_ADPCM_MS ||
        track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV ||
491
        mov_pcm_le_gt16(track->enc->codec_id)))
492
        mov_write_wave_tag(pb, track);
493
    else if(track->tag == MKTAG('m','p','4','a'))
Baptiste Coudurier's avatar
Baptiste Coudurier committed
494 495
        mov_write_esds_tag(pb, track);
    else if(track->enc->codec_id == CODEC_ID_AMR_NB)
496
        mov_write_amr_tag(pb, track);
497 498
    else if(track->enc->codec_id == CODEC_ID_AC3)
        mov_write_ac3_tag(pb, track);
499
    else if(track->enc->codec_id == CODEC_ID_ALAC)
500
        mov_write_extradata_tag(pb, track);
501 502
    else if(track->vosLen > 0)
        mov_write_glbl_tag(pb, track);
Baptiste Coudurier's avatar
Baptiste Coudurier committed
503

Baptiste Coudurier's avatar
Baptiste Coudurier committed
504
    return updateSize(pb, pos);
505 506
}

507
static int mov_write_d263_tag(AVIOContext *pb)
508
{
509
    avio_wb32(pb, 0xf); /* size */
510 511
    ffio_wfourcc(pb, "d263");
    ffio_wfourcc(pb, "FFMP");
512
    avio_w8(pb, 0); /* decoder version */
513
    /* FIXME use AVCodecContext level/profile, when encoder will set values */
514 515
    avio_w8(pb, 0xa); /* level */
    avio_w8(pb, 0); /* profile */
516 517 518
    return 0xf;
}

519
/* TODO: No idea about these values */
520
static int mov_write_svq3_tag(AVIOContext *pb)
521
{
522
    avio_wb32(pb, 0x15);
523 524
    ffio_wfourcc(pb, "SMI ");
    ffio_wfourcc(pb, "SEQH");
525 526 527 528
    avio_wb32(pb, 0x5);
    avio_wb32(pb, 0xe2c0211d);
    avio_wb32(pb, 0xc0000000);
    avio_w8(pb, 0);
529
    return 0x15;
530 531
}

532
static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
533
{
534
    int64_t pos = avio_tell(pb);
535

536
    avio_wb32(pb, 0);
537
    ffio_wfourcc(pb, "avcC");
538
    ff_isom_write_avcc(pb, track->vosData, track->vosLen);
539 540 541
    return updateSize(pb, pos);
}

542
/* also used by all avid codecs (dv, imx, meridien) and their variants */
543
static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
544 545
{
    int i;
546
    avio_wb32(pb, 24); /* size */
547 548 549
    ffio_wfourcc(pb, "ACLR");
    ffio_wfourcc(pb, "ACLR");
    ffio_wfourcc(pb, "0001");
550
    avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */
551
    avio_wb32(pb, 0); /* unknown */
552

553
    avio_wb32(pb, 24); /* size */
554 555 556
    ffio_wfourcc(pb, "APRG");
    ffio_wfourcc(pb, "APRG");
    ffio_wfourcc(pb, "0001");
557 558
    avio_wb32(pb, 1); /* unknown */
    avio_wb32(pb, 0); /* unknown */
559

560
    avio_wb32(pb, 120); /* size */
561 562 563
    ffio_wfourcc(pb, "ARES");
    ffio_wfourcc(pb, "ARES");
    ffio_wfourcc(pb, "0001");
564 565
    avio_wb32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */
    avio_wb32(pb, track->enc->width);
566 567
    /* values below are based on samples created with quicktime and avid codecs */
    if (track->vosData[5] & 2) { // interlaced
568 569 570 571
        avio_wb32(pb, track->enc->height/2);
        avio_wb32(pb, 2); /* unknown */
        avio_wb32(pb, 0); /* unknown */
        avio_wb32(pb, 4); /* unknown */
572
    } else {
573 574 575
        avio_wb32(pb, track->enc->height);
        avio_wb32(pb, 1); /* unknown */
        avio_wb32(pb, 0); /* unknown */
576
        if (track->enc->height == 1080)
577
            avio_wb32(pb, 5); /* unknown */
578
        else
579
            avio_wb32(pb, 6); /* unknown */
580 581 582
    }
    /* padding */
    for (i = 0; i < 10; i++)
583
        avio_wb64(pb, 0);
584 585

    /* extra padding for stsd needed */
586
    avio_wb32(pb, 0);
587 588 589
    return 0;
}

590
static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
591
{
Baptiste Coudurier's avatar
Baptiste Coudurier committed
592
    int tag = track->enc->codec_tag;
593

594
    if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
595 596 597 598 599 600
        return 0;

    if      (track->enc->codec_id == CODEC_ID_H264)      tag = MKTAG('a','v','c','1');
    else if (track->enc->codec_id == CODEC_ID_AC3)       tag = MKTAG('a','c','-','3');
    else if (track->enc->codec_id == CODEC_ID_DIRAC)     tag = MKTAG('d','r','a','c');
    else if (track->enc->codec_id == CODEC_ID_MOV_TEXT)  tag = MKTAG('t','x','3','g');
601 602
    else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
    else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
603 604 605 606

    return tag;
}

607 608 609 610 611 612 613 614 615 616 617
static const AVCodecTag codec_ipod_tags[] = {
    { CODEC_ID_H264,   MKTAG('a','v','c','1') },
    { CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },
    { CODEC_ID_AAC,    MKTAG('m','p','4','a') },
    { CODEC_ID_ALAC,   MKTAG('a','l','a','c') },
    { CODEC_ID_AC3,    MKTAG('a','c','-','3') },
    { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
    { CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
    { CODEC_ID_NONE, 0 },
};

618 619 620 621
static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
{
    int tag = track->enc->codec_tag;

622
    // keep original tag for subs, ipod supports both formats
623
    if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
624
        (tag == MKTAG('t','x','3','g') ||
625
         tag == MKTAG('t','e','x','t'))))
626
        tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
627

628
    if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))
629 630
        av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
               "Quicktime/Ipod might not play the file\n");
631 632 633 634 635 636 637 638

    return tag;
}

static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
{
    int tag;

639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655
    if (track->enc->width == 720) /* SD */
        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 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');
        else                                             tag = MKTAG('d','v','p','p');
    else if (track->enc->height == 720) /* HD 720 line */
        if  (track->enc->time_base.den == 50)            tag = MKTAG('d','v','h','q');
        else                                             tag = MKTAG('d','v','h','p');
    else if (track->enc->height == 1080) /* HD 1080 line */
        if  (track->enc->time_base.den == 25)            tag = MKTAG('d','v','h','5');
        else                                             tag = MKTAG('d','v','h','6');
    else {
        av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
        return 0;
    }
656 657 658 659

    return tag;
}

660 661 662 663 664 665 666
static const struct {
    enum PixelFormat pix_fmt;
    uint32_t tag;
    unsigned bps;
} mov_pix_fmt_tags[] = {
    { PIX_FMT_YUYV422, MKTAG('y','u','v','s'),  0 },
    { PIX_FMT_UYVY422, MKTAG('2','v','u','y'),  0 },
667
    { PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
668 669 670
    { PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
    { PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
    { PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
671
    { PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
672
    { PIX_FMT_RGB24,   MKTAG('r','a','w',' '), 24 },
673
    { PIX_FMT_BGR24,   MKTAG('2','4','B','G'), 24 },
Baptiste Coudurier's avatar
Baptiste Coudurier committed
674
    { PIX_FMT_ARGB,    MKTAG('r','a','w',' '), 32 },
Baptiste Coudurier's avatar
Baptiste Coudurier committed
675
    { PIX_FMT_BGRA,    MKTAG('B','G','R','A'), 32 },
Baptiste Coudurier's avatar
Baptiste Coudurier committed
676
    { PIX_FMT_RGBA,    MKTAG('R','G','B','A'), 32 },
677
    { PIX_FMT_ABGR,    MKTAG('A','B','G','R'), 32 },
678
    { PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
679 680
};

681 682 683
static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
{
    int tag = track->enc->codec_tag;
684 685 686 687 688 689 690 691 692
    int i;

    for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
        if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
            tag = mov_pix_fmt_tags[i].tag;
            track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
            break;
        }
    }
693 694 695 696 697 698 699 700 701

    return tag;
}

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

    if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
702
                 (track->enc->codec_id == CODEC_ID_DVVIDEO ||
703
                  track->enc->codec_id == CODEC_ID_RAWVIDEO ||
704
                  track->enc->codec_id == CODEC_ID_H263 ||
705
                  av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
706