Statistics
| Branch: | Revision:

ffmpeg / libavformat / isom.c @ 2f980d2a

History | View | Annotate | Download (14.4 KB)

1
/*
2
 * ISO Media common code
3
 * Copyright (c) 2001 Fabrice Bellard.
4
 * Copyright (c) 2002 Francois Revol <revol@free.fr>
5
 * Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
6
 *
7
 * This file is part of FFmpeg.
8
 *
9
 * FFmpeg is free software; you can redistribute it and/or
10
 * modify it under the terms of the GNU Lesser General Public
11
 * 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
 * FFmpeg is distributed in the hope that it will be useful,
15
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17
 * Lesser General Public License for more details.
18
 *
19
 * You should have received a copy of the GNU Lesser General Public
20
 * License along with FFmpeg; if not, write to the Free Software
21
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22
 */
23

    
24
#include "avformat.h"
25
#include "riff.h"
26
#include "isom.h"
27

    
28
/* http://www.mp4ra.org */
29
/* ordered by muxing preference */
30
const AVCodecTag ff_mp4_obj_type[] = {
31
    { CODEC_ID_MPEG4     , 0x20 },
32
    { CODEC_ID_H264      , 0x21 },
33
    { CODEC_ID_AAC       , 0x40 },
34
    { CODEC_ID_MPEG2VIDEO, 0x61 }, /* MPEG2 Main */
35
    { CODEC_ID_MPEG2VIDEO, 0x60 }, /* MPEG2 Simple */
36
    { CODEC_ID_MPEG2VIDEO, 0x62 }, /* MPEG2 SNR */
37
    { CODEC_ID_MPEG2VIDEO, 0x63 }, /* MPEG2 Spatial */
38
    { CODEC_ID_MPEG2VIDEO, 0x64 }, /* MPEG2 High */
39
    { CODEC_ID_MPEG2VIDEO, 0x65 }, /* MPEG2 422 */
40
    { CODEC_ID_AAC       , 0x66 }, /* MPEG2 AAC Main */
41
    { CODEC_ID_AAC       , 0x67 }, /* MPEG2 AAC Low */
42
    { CODEC_ID_AAC       , 0x68 }, /* MPEG2 AAC SSR */
43
    { CODEC_ID_MP3       , 0x6B }, /* 11172-3 */
44
    { CODEC_ID_MP2       , 0x6B }, /* 11172-3 */
45
    { CODEC_ID_MP3       , 0x69 }, /* 13818-3 */
46
    { CODEC_ID_MPEG1VIDEO, 0x6A }, /* 11172-2 */
47
    { CODEC_ID_MJPEG     , 0x6C }, /* 10918-1 */
48
    { CODEC_ID_PNG       , 0x6D },
49
    { CODEC_ID_JPEG2000  , 0x6E }, /* 15444-1 */
50
    { CODEC_ID_VC1       , 0xA3 },
51
    { CODEC_ID_AC3       , 0xA5 },
52
    { CODEC_ID_VORBIS    , 0xDD }, /* non standard, gpac uses it */
53
    { CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */
54
    { CODEC_ID_QCELP     , 0xE1 },
55
    { 0, 0 },
56
};
57

    
58
const AVCodecTag codec_movvideo_tags[] = {
59
/*  { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
60

    
61
    { CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
62
/*  { CODEC_ID_RAWVIDEO, MKTAG('Y', 'u', 'v', '2') }, *//* Uncompressed YUV422 */
63
    { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, /* YUV with alpha-channel (AVID Uncompressed) */
64
    { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
65

    
66
    { CODEC_ID_MJPEG,  MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
67
    { CODEC_ID_MJPEG,  MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
68
    { CODEC_ID_MJPEG,  MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
69
/*  { CODEC_ID_MJPEG,  MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
70
    { CODEC_ID_MJPEG,  MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */
71
    { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
72

    
73
    { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
74
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
75
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
76
    { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
77

    
78
    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
79
    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
80
    { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
81
    { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
82

    
83
    { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
84
    { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
85

    
86
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
87
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
88
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
89
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
90
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
91
    { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
92
    { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */
93
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */
94
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */
95
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
96
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
97
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */
98

    
99
    { CODEC_ID_VP3,     MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
100
    { CODEC_ID_RPZA,    MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
101
    { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
102
    { CODEC_ID_8BPS,    MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
103
    { CODEC_ID_SMC,     MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
104
    { CODEC_ID_QTRLE,   MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
105
    { CODEC_ID_MSRLE,   MKTAG('W', 'R', 'L', 'E') },
106
    { CODEC_ID_QDRAW,   MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
107

    
108
    { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
109

    
110
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
111
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */
112
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */
113
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */
114
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */
115
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */
116
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */
117
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */
118
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
119
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
120
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */
121
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */
122
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
123
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
124
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
125
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
126
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
127
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
128
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
129
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
130
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
131
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
132
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
133
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
134
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
135
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
136
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
137
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
138
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
139
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
140
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
141
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
142
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
143
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
144
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
145
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
146
    { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
147

    
148
  //{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
149

    
150
    { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
151
    { CODEC_ID_TIFF,  MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
152
    { CODEC_ID_GIF,   MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
153
    { CODEC_ID_PNG,   MKTAG('p', 'n', 'g', ' ') },
154

    
155
    { CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
156
    { CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
157

    
158
    { CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
159
    { CODEC_ID_SGI,   MKTAG('s', 'g', 'i', ' ') }, /* SGI  */
160

    
161
    { CODEC_ID_NONE, 0 },
162
};
163

    
164
const AVCodecTag codec_movaudio_tags[] = {
165
    { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
166
    { CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
167
    { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
168
    { CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
169
    { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
170
    { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /*  */
171
    { CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
172
    { CODEC_ID_PCM_F32BE, MKTAG('f', 'l', '3', '2') },
173
    { CODEC_ID_PCM_F64BE, MKTAG('f', 'l', '6', '4') },
174
    { CODEC_ID_PCM_S8,    MKTAG('s', 'o', 'w', 't') },
175
    { CODEC_ID_PCM_U8,    MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
176
    { CODEC_ID_PCM_U8,    MKTAG('N', 'O', 'N', 'E') }, /* uncompressed */
177
    { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /*  */
178
    { CODEC_ID_PCM_ALAW,  MKTAG('a', 'l', 'a', 'w') }, /*  */
179

    
180
    { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
181

    
182
    { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
183
    { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
184

    
185
    { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
186
    { CODEC_ID_MP3, 0x6D730055 }, /* MPEG layer 3 */
187

    
188
/*  { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
189

    
190
    { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
191
    { CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
192

    
193
    { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
194
    { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
195

    
196
    { CODEC_ID_GSM,  MKTAG('a', 'g', 's', 'm') },
197
    { CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
198

    
199
    { CODEC_ID_QCELP, MKTAG('Q','c','l','p') },
200
    { CODEC_ID_QCELP, MKTAG('s','q','c','p') }, /* ISO Media fourcc */
201

    
202
    { CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
203

    
204
    { CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
205
    { CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
206

    
207
    { CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') },
208

    
209
    { CODEC_ID_NONE, 0 },
210
};
211

    
212
const AVCodecTag ff_codec_movsubtitle_tags[] = {
213
    { CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
214
    { CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
215
    { CODEC_ID_NONE, 0 },
216
};
217

    
218
/* map numeric codes from mdhd atom to ISO 639 */
219
/* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
220
/* http://developer.apple.com/documentation/mac/Text/Text-368.html */
221
/* deprecated by putting the code as 3*5bit ascii */
222
static const char *mov_mdhd_language_map[] = {
223
    /* 0-9 */
224
    "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
225
    "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
226
    "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav",  NULL,
227
    "fo ",  NULL, "rus", "chi",  NULL, "iri", "alb", "ron", "ces", "slk",
228
    "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
229
    /*?*/
230
    "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",  NULL, "pus",
231
    "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
232
    "pa ", "ori", "mal", "kan", "tam", "tel",  NULL, "bur", "khm", "lao",
233
    /*                   roman? arabic? */
234
    "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
235
    /*==rundi?*/
236
    NULL, "run",  NULL, "mlg", "epo",  NULL,  NULL,  NULL,  NULL,  NULL,
237
    /* 100 */
238
    NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,
239
    NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,
240
    NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL,  NULL, "wel", "baq",
241
    "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
242
};
243

    
244
int ff_mov_iso639_to_lang(const char *lang, int mp4)
245
{
246
    int i, code = 0;
247

    
248
    /* old way, only for QT? */
249
    for (i = 0; !mp4 && (i < (sizeof(mov_mdhd_language_map)/sizeof(char *))); i++) {
250
        if (mov_mdhd_language_map[i] && !strcmp(lang, mov_mdhd_language_map[i]))
251
            return i;
252
    }
253
    /* XXX:can we do that in mov too? */
254
    if (!mp4)
255
        return 0;
256
    /* handle undefined as such */
257
    if (lang[0] == '\0')
258
        lang = "und";
259
    /* 5bit ascii */
260
    for (i = 0; i < 3; i++) {
261
        unsigned char c = (unsigned char)lang[i];
262
        if (c < 0x60)
263
            return 0;
264
        if (c > 0x60 + 0x1f)
265
            return 0;
266
        code <<= 5;
267
        code |= (c - 0x60);
268
    }
269
    return code;
270
}
271

    
272
int ff_mov_lang_to_iso639(int code, char *to)
273
{
274
    int i;
275
    /* is it the mangled iso code? */
276
    /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
277
    if (code > 138) {
278
        for (i = 2; i >= 0; i--) {
279
            to[i] = 0x60 + (code & 0x1f);
280
            code >>= 5;
281
        }
282
        return 1;
283
    }
284
    /* old fashion apple lang code */
285
    if (code >= (sizeof(mov_mdhd_language_map)/sizeof(char *)))
286
        return 0;
287
    if (!mov_mdhd_language_map[code])
288
        return 0;
289
    strncpy(to, mov_mdhd_language_map[code], 4);
290
    return 1;
291
}