mirror of https://git.ffmpeg.org/ffmpeg.git
132 lines
4.7 KiB
C
132 lines
4.7 KiB
C
/*
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* ISO Media common code
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* Copyright (c) 2001 Fabrice Bellard.
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* Copyright (c) 2002 Francois Revol <revol@free.fr>
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* Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "avformat.h"
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#include "riff.h"
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#include "isom.h"
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/* http://gpac.sourceforge.net/tutorial/mediatypes.htm */
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const CodecTag ff_mov_obj_type[] = {
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{ CODEC_ID_MPEG4 , 32 },
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{ CODEC_ID_H264 , 33 },
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{ CODEC_ID_AAC , 64 },
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{ CODEC_ID_MPEG2VIDEO, 96 }, /* MPEG2 Simple */
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{ CODEC_ID_MPEG2VIDEO, 97 }, /* MPEG2 Main */
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{ CODEC_ID_MPEG2VIDEO, 98 }, /* MPEG2 SNR */
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{ CODEC_ID_MPEG2VIDEO, 99 }, /* MPEG2 Spatial */
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{ CODEC_ID_MPEG2VIDEO, 100 }, /* MPEG2 High */
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{ CODEC_ID_MPEG2VIDEO, 101 }, /* MPEG2 422 */
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{ CODEC_ID_AAC , 102 }, /* MPEG2 AAC Main */
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{ CODEC_ID_AAC , 103 }, /* MPEG2 AAC Low */
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{ CODEC_ID_AAC , 104 }, /* MPEG2 AAC SSR */
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{ CODEC_ID_MP3 , 105 },
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{ CODEC_ID_MPEG1VIDEO, 106 },
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{ CODEC_ID_MP2 , 107 },
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{ CODEC_ID_MJPEG , 108 },
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{ CODEC_ID_PCM_S16LE , 224 },
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{ CODEC_ID_VORBIS , 221 },
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{ CODEC_ID_QCELP , 225 },
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{ CODEC_ID_AC3 , 226 },
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{ CODEC_ID_PCM_ALAW , 227 },
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{ CODEC_ID_PCM_MULAW , 228 },
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{ CODEC_ID_PCM_S16BE , 230 },
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{ CODEC_ID_H263 , 242 },
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{ CODEC_ID_H261 , 243 },
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{ 0, 0 },
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};
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/* map numeric codes from mdhd atom to ISO 639 */
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/* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
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/* http://developer.apple.com/documentation/mac/Text/Text-368.html */
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/* deprecated by putting the code as 3*5bit ascii */
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static const char *mov_mdhd_language_map[] = {
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/* 0-9 */
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"eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
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"heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
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"urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", NULL,
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"fo ", NULL, "rus", "chi", NULL, "iri", "alb", "ron", "ces", "slk",
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"slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
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/*?*/
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"aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", NULL, "pus",
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"kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
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"pa ", "ori", "mal", "kan", "tam", "tel", NULL, "bur", "khm", "lao",
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/* roman? arabic? */
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"vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
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/*==rundi?*/
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NULL, "run", NULL, "mlg", "epo", NULL, NULL, NULL, NULL, NULL,
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/* 100 */
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NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "wel", "baq",
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"cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
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};
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int ff_mov_iso639_to_lang(const char *lang, int mp4)
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{
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int i, code = 0;
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/* old way, only for QT? */
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for (i = 0; !mp4 && (i < (sizeof(mov_mdhd_language_map)/sizeof(char *))); i++) {
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if (mov_mdhd_language_map[i] && !strcmp(lang, mov_mdhd_language_map[i]))
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return i;
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}
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/* XXX:can we do that in mov too? */
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if (!mp4)
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return 0;
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/* handle undefined as such */
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if (lang[0] == '\0')
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lang = "und";
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/* 5bit ascii */
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for (i = 0; i < 3; i++) {
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unsigned char c = (unsigned char)lang[i];
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if (c < 0x60)
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return 0;
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if (c > 0x60 + 0x1f)
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return 0;
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code <<= 5;
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code |= (c - 0x60);
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}
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return code;
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}
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int ff_mov_lang_to_iso639(int code, char *to)
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{
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int i;
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/* is it the mangled iso code? */
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/* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
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if (code > 138) {
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for (i = 2; i >= 0; i--) {
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to[i] = 0x60 + (code & 0x1f);
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code >>= 5;
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}
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return 1;
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}
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/* old fashion apple lang code */
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if (code >= (sizeof(mov_mdhd_language_map)/sizeof(char *)))
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return 0;
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if (!mov_mdhd_language_map[code])
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return 0;
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strncpy(to, mov_mdhd_language_map[code], 4);
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return 1;
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}
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