Statistics
| Branch: | Revision:

ffmpeg / libavformat / isom.c @ 9a191b3a

History | View | Annotate | Download (16.1 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 "internal.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_MOV_TEXT  , 0x08 },
32
    { CODEC_ID_MPEG4     , 0x20 },
33
    { CODEC_ID_H264      , 0x21 },
34
    { CODEC_ID_AAC       , 0x40 },
35
    { CODEC_ID_MP4ALS    , 0x40 }, /* 14496-3 ALS */
36
    { CODEC_ID_MPEG2VIDEO, 0x61 }, /* MPEG2 Main */
37
    { CODEC_ID_MPEG2VIDEO, 0x60 }, /* MPEG2 Simple */
38
    { CODEC_ID_MPEG2VIDEO, 0x62 }, /* MPEG2 SNR */
39
    { CODEC_ID_MPEG2VIDEO, 0x63 }, /* MPEG2 Spatial */
40
    { CODEC_ID_MPEG2VIDEO, 0x64 }, /* MPEG2 High */
41
    { CODEC_ID_MPEG2VIDEO, 0x65 }, /* MPEG2 422 */
42
    { CODEC_ID_AAC       , 0x66 }, /* MPEG2 AAC Main */
43
    { CODEC_ID_AAC       , 0x67 }, /* MPEG2 AAC Low */
44
    { CODEC_ID_AAC       , 0x68 }, /* MPEG2 AAC SSR */
45
    { CODEC_ID_MP3       , 0x69 }, /* 13818-3 */
46
    { CODEC_ID_MP2       , 0x69 }, /* 11172-3 */
47
    { CODEC_ID_MPEG1VIDEO, 0x6A }, /* 11172-2 */
48
    { CODEC_ID_MP3       , 0x6B }, /* 11172-3 */
49
    { CODEC_ID_MJPEG     , 0x6C }, /* 10918-1 */
50
    { CODEC_ID_PNG       , 0x6D },
51
    { CODEC_ID_JPEG2000  , 0x6E }, /* 15444-1 */
52
    { CODEC_ID_VC1       , 0xA3 },
53
    { CODEC_ID_DIRAC     , 0xA4 },
54
    { CODEC_ID_AC3       , 0xA5 },
55
    { CODEC_ID_VORBIS    , 0xDD }, /* non standard, gpac uses it */
56
    { CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */
57
    { CODEC_ID_QCELP     , 0xE1 },
58
    { CODEC_ID_NONE      ,    0 },
59
};
60

    
61
const AVCodecTag codec_movvideo_tags[] = {
62
/*  { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
63

    
64
    { CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
65
    { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
66
    { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, /* YUV with alpha-channel (AVID Uncompressed) */
67
    { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
68
    { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */
69

    
70
    { CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') },
71
    { CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') },
72
    { CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') },
73
    { CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') },
74
    { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
75
    { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
76
    { CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
77
    { CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
78
    { CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
79

    
80
    { CODEC_ID_R210,   MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */
81
    { CODEC_ID_V210,   MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */
82

    
83
    { CODEC_ID_MJPEG,  MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
84
    { CODEC_ID_MJPEG,  MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
85
    { CODEC_ID_MJPEG,  MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
86
/*  { CODEC_ID_MJPEG,  MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
87
    { CODEC_ID_MJPEG,  MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */
88
    { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
89

    
90
    { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
91
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
92
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
93
    { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
94

    
95
    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
96
    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
97
    { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
98
    { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
99

    
100
    { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
101
    { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
102

    
103
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
104
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
105
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
106
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
107
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
108
    { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
109
    { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */
110
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */
111
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */
112
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
113
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') },
114
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') },
115
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
116
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
117
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */
118

    
119
    { CODEC_ID_VP3,     MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
120
    { CODEC_ID_RPZA,    MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
121
    { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
122
    { CODEC_ID_8BPS,    MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
123
    { CODEC_ID_SMC,     MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
124
    { CODEC_ID_QTRLE,   MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
125
    { CODEC_ID_MSRLE,   MKTAG('W', 'R', 'L', 'E') },
126
    { CODEC_ID_QDRAW,   MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
127

    
128
    { CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
129

    
130
    { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
131

    
132
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
133
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') },
134
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */
135
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */
136
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */
137
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */
138
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */
139
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */
140
    { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */
141
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
142
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
143
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */
144
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */
145
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
146
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
147
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
148
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
149
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
150
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
151
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
152
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
153
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
154
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
155
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
156
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
157
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
158
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
159
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
160
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
161
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
162
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
163
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
164
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
165
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
166
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
167
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
168
    { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
169
    { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
170
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') },
171

    
172
    { CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
173

    
174
    { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
175
    { CODEC_ID_TIFF,  MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
176
    { CODEC_ID_GIF,   MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
177
    { CODEC_ID_PNG,   MKTAG('p', 'n', 'g', ' ') },
178

    
179
    { CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
180
    { CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
181

    
182
    { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
183
    { CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
184
    { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */
185
    { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') },
186
    { CODEC_ID_SGI,   MKTAG('s', 'g', 'i', ' ') }, /* SGI  */
187
    { CODEC_ID_DPX,   MKTAG('d', 'p', 'x', ' ') }, /* DPX */
188

    
189
    { CODEC_ID_NONE, 0 },
190
};
191

    
192
const AVCodecTag codec_movaudio_tags[] = {
193
    { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
194
    { CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
195
    { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
196
    { CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
197
    { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */
198
    { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /*  */
199
    { CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
200
    { CODEC_ID_PCM_F32BE, MKTAG('f', 'l', '3', '2') },
201
    { CODEC_ID_PCM_F32LE, MKTAG('f', 'l', '3', '2') },
202
    { CODEC_ID_PCM_F64BE, MKTAG('f', 'l', '6', '4') },
203
    { CODEC_ID_PCM_F64LE, MKTAG('f', 'l', '6', '4') },
204
    { CODEC_ID_PCM_S8,    MKTAG('s', 'o', 'w', 't') },
205
    { CODEC_ID_PCM_U8,    MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */
206
    { CODEC_ID_PCM_U8,    MKTAG('N', 'O', 'N', 'E') }, /* uncompressed */
207
    { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /*  */
208
    { CODEC_ID_PCM_ALAW,  MKTAG('a', 'l', 'a', 'w') }, /*  */
209

    
210
    { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */
211

    
212
    { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */
213
    { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */
214

    
215
    { CODEC_ID_MP1, MKTAG('.', 'm', 'p', '1') }, /* MPEG layer 1 */
216
    { CODEC_ID_MP2, MKTAG('.', 'm', 'p', '2') }, /* MPEG layer 2 */
217

    
218
    { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */
219
    { CODEC_ID_MP3, 0x6D730055 }, /* MPEG layer 3 */
220

    
221
/*  { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
222

    
223
    { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
224
    { CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
225
    { CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
226

    
227
    { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
228
    { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
229

    
230
    { CODEC_ID_GSM,  MKTAG('a', 'g', 's', 'm') },
231
    { CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */
232

    
233
    { CODEC_ID_QCELP, MKTAG('Q','c','l','p') },
234
    { CODEC_ID_QCELP, MKTAG('Q','c','l','q') },
235
    { CODEC_ID_QCELP, MKTAG('s','q','c','p') }, /* ISO Media fourcc */
236

    
237
    { CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */
238

    
239
    { CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
240
    { CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
241

    
242
    { CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') },
243

    
244
    { CODEC_ID_NONE, 0 },
245
};
246

    
247
const AVCodecTag ff_codec_movsubtitle_tags[] = {
248
    { CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
249
    { CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
250
    { CODEC_ID_NONE, 0 },
251
};
252

    
253
/* map numeric codes from mdhd atom to ISO 639 */
254
/* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
255
/* http://developer.apple.com/documentation/mac/Text/Text-368.html */
256
/* deprecated by putting the code as 3*5bit ascii */
257
static const char mov_mdhd_language_map[][4] = {
258
    /* 0-9 */
259
    "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
260
    "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
261
    "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav",    "",
262
    "fo ",    "", "rus", "chi",    "", "iri", "alb", "ron", "ces", "slk",
263
    "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
264
    /*?*/
265
    "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",    "", "pus",
266
    "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
267
    "pa ", "ori", "mal", "kan", "tam", "tel",    "", "bur", "khm", "lao",
268
    /*                   roman? arabic? */
269
    "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
270
    /*==rundi?*/
271
       "", "run",    "", "mlg", "epo",    "",    "",    "",    "",    "",
272
    /* 100 */
273
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
274
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
275
       "",    "",    "",    "",    "",    "",    "",    "", "wel", "baq",
276
    "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
277
};
278

    
279
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
280
{
281
    int i, code = 0;
282

    
283
    /* old way, only for QT? */
284
    for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
285
        if (!strcmp(lang, mov_mdhd_language_map[i]))
286
            return i;
287
    }
288
    /* XXX:can we do that in mov too? */
289
    if (!mp4)
290
        return -1;
291
    /* handle undefined as such */
292
    if (lang[0] == '\0')
293
        lang = "und";
294
    /* 5bit ascii */
295
    for (i = 0; i < 3; i++) {
296
        uint8_t c = lang[i];
297
        c -= 0x60;
298
        if (c > 0x1f)
299
            return -1;
300
        code <<= 5;
301
        code |= c;
302
    }
303
    return code;
304
}
305

    
306
int ff_mov_lang_to_iso639(unsigned code, char to[4])
307
{
308
    int i;
309
    memset(to, 0, 4);
310
    /* is it the mangled iso code? */
311
    /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
312
    if (code > 138) {
313
        for (i = 2; i >= 0; i--) {
314
            to[i] = 0x60 + (code & 0x1f);
315
            code >>= 5;
316
        }
317
        return 1;
318
    }
319
    /* old fashion apple lang code */
320
    if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
321
        return 0;
322
    if (!mov_mdhd_language_map[code][0])
323
        return 0;
324
    memcpy(to, mov_mdhd_language_map[code], 4);
325
    return 1;
326
}