1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
* ISO Media common code
* Copyright (c) 2001 Fabrice Bellard.
* Copyright (c) 2002 Francois Revol <revol@free.fr>
* Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
*
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
#include "riff.h"
#include "isom.h"
/* http://gpac.sourceforge.net/tutorial/mediatypes.htm */
const CodecTag ff_mov_obj_type[] = {
{ CODEC_ID_MPEG4 , 32 },
{ CODEC_ID_H264 , 33 },
{ CODEC_ID_AAC , 64 },
{ CODEC_ID_MPEG2VIDEO, 96 }, /* MPEG2 Simple */
{ CODEC_ID_MPEG2VIDEO, 97 }, /* MPEG2 Main */
{ CODEC_ID_MPEG2VIDEO, 98 }, /* MPEG2 SNR */
{ CODEC_ID_MPEG2VIDEO, 99 }, /* MPEG2 Spatial */
{ CODEC_ID_MPEG2VIDEO, 100 }, /* MPEG2 High */
{ CODEC_ID_MPEG2VIDEO, 101 }, /* MPEG2 422 */
{ CODEC_ID_AAC , 102 }, /* MPEG2 AAC Main */
{ CODEC_ID_AAC , 103 }, /* MPEG2 AAC Low */
{ CODEC_ID_AAC , 104 }, /* MPEG2 AAC SSR */
{ CODEC_ID_MP3 , 105 },
{ CODEC_ID_MPEG1VIDEO, 106 },
{ CODEC_ID_MP2 , 107 },
{ CODEC_ID_MJPEG , 108 },
{ CODEC_ID_PCM_S16LE , 224 },
{ CODEC_ID_VORBIS , 221 },
{ CODEC_ID_QCELP , 225 },
{ CODEC_ID_AC3 , 226 },
{ CODEC_ID_PCM_ALAW , 227 },
{ CODEC_ID_PCM_MULAW , 228 },
{ CODEC_ID_PCM_S16BE , 230 },
{ CODEC_ID_H263 , 242 },
{ CODEC_ID_H261 , 243 },
{ 0, 0 },
};
/* map numeric codes from mdhd atom to ISO 639 */
/* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
/* http://developer.apple.com/documentation/mac/Text/Text-368.html */
/* deprecated by putting the code as 3*5bit ascii */
static const char *mov_mdhd_language_map[] = {
/* 0-9 */
"eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
"heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
"urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", NULL,
"fo ", NULL, "rus", "chi", NULL, "iri", "alb", "ron", "ces", "slk",
"slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
/*?*/
"aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", NULL, "pus",
"kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
"pa ", "ori", "mal", "kan", "tam", "tel", NULL, "bur", "khm", "lao",
/* roman? arabic? */
"vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
/*==rundi?*/
NULL, "run", NULL, "mlg", "epo", NULL, NULL, NULL, NULL, NULL,
/* 100 */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "wel", "baq",
"cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
};
int ff_mov_iso639_to_lang(const char *lang, int mp4)
{
int i, code = 0;
/* old way, only for QT? */
for (i = 0; !mp4 && (i < (sizeof(mov_mdhd_language_map)/sizeof(char *))); i++) {
if (mov_mdhd_language_map[i] && !strcmp(lang, mov_mdhd_language_map[i]))
return i;
}
/* XXX:can we do that in mov too? */
if (!mp4)
return 0;
/* handle undefined as such */
if (lang[0] == '\0')
lang = "und";
/* 5bit ascii */
for (i = 0; i < 3; i++) {
unsigned char c = (unsigned char)lang[i];
if (c < 0x60)
return 0;
if (c > 0x60 + 0x1f)
return 0;
code <<= 5;
code |= (c - 0x60);
}
return code;
}
int ff_mov_lang_to_iso639(int code, char *to)
{
int i;
/* is it the mangled iso code? */
/* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
if (code > 138) {
for (i = 2; i >= 0; i--) {
to[i] = 0x60 + (code & 0x1f);
code >>= 5;
}
return 1;
}
/* old fashion apple lang code */
if (code >= (sizeof(mov_mdhd_language_map)/sizeof(char *)))
return 0;
if (!mov_mdhd_language_map[code])
return 0;
strncpy(to, mov_mdhd_language_map[code], 4);
return 1;
}
|
