0,0 → 1,246 |
/* |
* ID3v1 header parser |
* Copyright (c) 2003 Fabrice Bellard |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg 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 2.1 of the License, or (at your option) any later version. |
* |
* FFmpeg 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 FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
|
#include "id3v1.h" |
#include "libavcodec/avcodec.h" |
#include "libavutil/dict.h" |
|
/* See Genre List at http://id3.org/id3v2.3.0 */ |
const char * const ff_id3v1_genre_str[ID3v1_GENRE_MAX + 1] = { |
[0] = "Blues", |
[1] = "Classic Rock", |
[2] = "Country", |
[3] = "Dance", |
[4] = "Disco", |
[5] = "Funk", |
[6] = "Grunge", |
[7] = "Hip-Hop", |
[8] = "Jazz", |
[9] = "Metal", |
[10] = "New Age", |
[11] = "Oldies", |
[12] = "Other", |
[13] = "Pop", |
[14] = "R&B", |
[15] = "Rap", |
[16] = "Reggae", |
[17] = "Rock", |
[18] = "Techno", |
[19] = "Industrial", |
[20] = "Alternative", |
[21] = "Ska", |
[22] = "Death Metal", |
[23] = "Pranks", |
[24] = "Soundtrack", |
[25] = "Euro-Techno", |
[26] = "Ambient", |
[27] = "Trip-Hop", |
[28] = "Vocal", |
[29] = "Jazz+Funk", |
[30] = "Fusion", |
[31] = "Trance", |
[32] = "Classical", |
[33] = "Instrumental", |
[34] = "Acid", |
[35] = "House", |
[36] = "Game", |
[37] = "Sound Clip", |
[38] = "Gospel", |
[39] = "Noise", |
[40] = "AlternRock", |
[41] = "Bass", |
[42] = "Soul", |
[43] = "Punk", |
[44] = "Space", |
[45] = "Meditative", |
[46] = "Instrumental Pop", |
[47] = "Instrumental Rock", |
[48] = "Ethnic", |
[49] = "Gothic", |
[50] = "Darkwave", |
[51] = "Techno-Industrial", |
[52] = "Electronic", |
[53] = "Pop-Folk", |
[54] = "Eurodance", |
[55] = "Dream", |
[56] = "Southern Rock", |
[57] = "Comedy", |
[58] = "Cult", |
[59] = "Gangsta", |
[60] = "Top 40", |
[61] = "Christian Rap", |
[62] = "Pop/Funk", |
[63] = "Jungle", |
[64] = "Native American", |
[65] = "Cabaret", |
[66] = "New Wave", |
[67] = "Psychadelic", /* sic, the misspelling is used in the specification */ |
[68] = "Rave", |
[69] = "Showtunes", |
[70] = "Trailer", |
[71] = "Lo-Fi", |
[72] = "Tribal", |
[73] = "Acid Punk", |
[74] = "Acid Jazz", |
[75] = "Polka", |
[76] = "Retro", |
[77] = "Musical", |
[78] = "Rock & Roll", |
[79] = "Hard Rock", |
[80] = "Folk", |
[81] = "Folk-Rock", |
[82] = "National Folk", |
[83] = "Swing", |
[84] = "Fast Fusion", |
[85] = "Bebob", |
[86] = "Latin", |
[87] = "Revival", |
[88] = "Celtic", |
[89] = "Bluegrass", |
[90] = "Avantgarde", |
[91] = "Gothic Rock", |
[92] = "Progressive Rock", |
[93] = "Psychedelic Rock", |
[94] = "Symphonic Rock", |
[95] = "Slow Rock", |
[96] = "Big Band", |
[97] = "Chorus", |
[98] = "Easy Listening", |
[99] = "Acoustic", |
[100] = "Humour", |
[101] = "Speech", |
[102] = "Chanson", |
[103] = "Opera", |
[104] = "Chamber Music", |
[105] = "Sonata", |
[106] = "Symphony", |
[107] = "Booty Bass", |
[108] = "Primus", |
[109] = "Porn Groove", |
[110] = "Satire", |
[111] = "Slow Jam", |
[112] = "Club", |
[113] = "Tango", |
[114] = "Samba", |
[115] = "Folklore", |
[116] = "Ballad", |
[117] = "Power Ballad", |
[118] = "Rhythmic Soul", |
[119] = "Freestyle", |
[120] = "Duet", |
[121] = "Punk Rock", |
[122] = "Drum Solo", |
[123] = "A capella", |
[124] = "Euro-House", |
[125] = "Dance Hall", |
[126] = "Goa", |
[127] = "Drum & Bass", |
[128] = "Club-House", |
[129] = "Hardcore", |
[130] = "Terror", |
[131] = "Indie", |
[132] = "BritPop", |
[133] = "Negerpunk", |
[134] = "Polsk Punk", |
[135] = "Beat", |
[136] = "Christian Gangsta", |
[137] = "Heavy Metal", |
[138] = "Black Metal", |
[139] = "Crossover", |
[140] = "Contemporary Christian", |
[141] = "Christian Rock", |
[142] = "Merengue", |
[143] = "Salsa", |
[144] = "Thrash Metal", |
[145] = "Anime", |
[146] = "JPop", |
[147] = "SynthPop", |
}; |
|
static void get_string(AVFormatContext *s, const char *key, |
const uint8_t *buf, int buf_size) |
{ |
int i, c; |
char *q, str[512]; |
|
q = str; |
for(i = 0; i < buf_size; i++) { |
c = buf[i]; |
if (c == '\0') |
break; |
if ((q - str) >= sizeof(str) - 1) |
break; |
*q++ = c; |
} |
*q = '\0'; |
|
if (*str) |
av_dict_set(&s->metadata, key, str, 0); |
} |
|
/** |
* Parse an ID3v1 tag |
* |
* @param buf ID3v1_TAG_SIZE long buffer containing the tag |
*/ |
static int parse_tag(AVFormatContext *s, const uint8_t *buf) |
{ |
char str[5]; |
int genre; |
|
if (!(buf[0] == 'T' && |
buf[1] == 'A' && |
buf[2] == 'G')) |
return -1; |
get_string(s, "title", buf + 3, 30); |
get_string(s, "artist", buf + 33, 30); |
get_string(s, "album", buf + 63, 30); |
get_string(s, "date", buf + 93, 4); |
get_string(s, "comment", buf + 97, 30); |
if (buf[125] == 0 && buf[126] != 0) { |
snprintf(str, sizeof(str), "%d", buf[126]); |
av_dict_set(&s->metadata, "track", str, 0); |
} |
genre = buf[127]; |
if (genre <= ID3v1_GENRE_MAX) |
av_dict_set(&s->metadata, "genre", ff_id3v1_genre_str[genre], 0); |
return 0; |
} |
|
void ff_id3v1_read(AVFormatContext *s) |
{ |
int ret; |
uint8_t buf[ID3v1_TAG_SIZE]; |
int64_t filesize, position = avio_tell(s->pb); |
|
if (s->pb->seekable) { |
/* XXX: change that */ |
filesize = avio_size(s->pb); |
if (filesize > 128) { |
avio_seek(s->pb, filesize - 128, SEEK_SET); |
ret = avio_read(s->pb, buf, ID3v1_TAG_SIZE); |
if (ret == ID3v1_TAG_SIZE) { |
parse_tag(s, buf); |
} |
avio_seek(s->pb, position, SEEK_SET); |
} |
} |
} |