298 lines
7.5 KiB
C
298 lines
7.5 KiB
C
/*
|
|
* 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] = "Psychedelic",
|
|
[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] = "Bebop",
|
|
[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 Cappella",
|
|
[124] = "Euro-House",
|
|
[125] = "Dance Hall",
|
|
[126] = "Goa",
|
|
[127] = "Drum & Bass",
|
|
[128] = "Club-House",
|
|
[129] = "Hardcore Techno",
|
|
[130] = "Terror",
|
|
[131] = "Indie",
|
|
[132] = "BritPop",
|
|
[133] = "Negerpunk",
|
|
[134] = "Polsk Punk",
|
|
[135] = "Beat",
|
|
[136] = "Christian Gangsta Rap",
|
|
[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",
|
|
[148] = "Abstract",
|
|
[149] = "Art Rock",
|
|
[150] = "Baroque",
|
|
[151] = "Bhangra",
|
|
[152] = "Big Beat",
|
|
[153] = "Breakbeat",
|
|
[154] = "Chillout",
|
|
[155] = "Downtempo",
|
|
[156] = "Dub",
|
|
[157] = "EBM",
|
|
[158] = "Eclectic",
|
|
[159] = "Electro",
|
|
[160] = "Electroclash",
|
|
[161] = "Emo",
|
|
[162] = "Experimental",
|
|
[163] = "Garage",
|
|
[164] = "Global",
|
|
[165] = "IDM",
|
|
[166] = "Illbient",
|
|
[167] = "Industro-Goth",
|
|
[168] = "Jam Band",
|
|
[169] = "Krautrock",
|
|
[170] = "Leftfield",
|
|
[171] = "Lounge",
|
|
[172] = "Math Rock",
|
|
[173] = "New Romantic",
|
|
[174] = "Nu-Breakz",
|
|
[175] = "Post-Punk",
|
|
[176] = "Post-Rock",
|
|
[177] = "Psytrance",
|
|
[178] = "Shoegaze",
|
|
[179] = "Space Rock",
|
|
[180] = "Trop Rock",
|
|
[181] = "World Music",
|
|
[182] = "Neoclassical",
|
|
[183] = "Audiobook",
|
|
[184] = "Audio Theatre",
|
|
[185] = "Neue Deutsche Welle",
|
|
[186] = "Podcast",
|
|
[187] = "Indie Rock",
|
|
[188] = "G-Funk",
|
|
[189] = "Dubstep",
|
|
[190] = "Garage Rock",
|
|
[191] = "Psybient"
|
|
};
|
|
|
|
static void get_string(AVFormatContext *s, const char *key,
|
|
const uint8_t *buf, int buf_size)
|
|
{
|
|
int i, c;
|
|
char *q, str[512], *first_free_space = NULL;
|
|
|
|
q = str;
|
|
for(i = 0; i < buf_size; i++) {
|
|
c = buf[i];
|
|
if (c == '\0')
|
|
break;
|
|
if ((q - str) >= sizeof(str) - 1)
|
|
break;
|
|
if (c == ' ') {
|
|
if (!first_free_space)
|
|
first_free_space = q;
|
|
} else {
|
|
first_free_space = NULL;
|
|
}
|
|
*q++ = c;
|
|
}
|
|
*q = '\0';
|
|
|
|
if (first_free_space)
|
|
*first_free_space = '\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)
|
|
{
|
|
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) {
|
|
av_dict_set_int(&s->metadata, "track", buf[126], 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 & AVIO_SEEKABLE_NORMAL) {
|
|
/* 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);
|
|
}
|
|
}
|
|
}
|