Commit 75411182 authored by Patrick Dehne's avatar Patrick Dehne Committed by Diego Biurrun
Browse files

Move id3v2 parsing code from mp3.c to id3v2.h and id3v2.c.

patch by Patrick Dehne, patrick mysonicweb com

Originally committed as revision 19155 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent dc822901
......@@ -96,7 +96,7 @@ OBJS-$(CONFIG_MMF_MUXER) += mmf.o riff.o
OBJS-$(CONFIG_MOV_DEMUXER) += mov.o riff.o isom.o
OBJS-$(CONFIG_MOV_MUXER) += movenc.o riff.o isom.o avc.o
OBJS-$(CONFIG_MP2_MUXER) += mp3.o
OBJS-$(CONFIG_MP3_DEMUXER) += mp3.o id3v2.o
OBJS-$(CONFIG_MP3_DEMUXER) += mp3.o id3v1.o id3v2.o
OBJS-$(CONFIG_MP3_MUXER) += mp3.o
OBJS-$(CONFIG_MP4_MUXER) += movenc.o riff.o isom.o avc.o
OBJS-$(CONFIG_MPC_DEMUXER) += mpc.o id3v2.o
......
/*
* 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"
const char *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",
[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",
};
/*
* 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
*/
#ifndef AVFORMAT_ID3V1_H
#define AVFORMAT_ID3V1_H
#define ID3v1_TAG_SIZE 128
#define ID3v1_GENRE_MAX 125
/**
* ID3v1 genres
*/
extern const char *ff_id3v1_genre_str[ID3v1_GENRE_MAX + 1];
#endif /* AVFORMAT_ID3V1_H */
......@@ -20,6 +20,8 @@
*/
#include "id3v2.h"
#include "id3v1.h"
#include "libavutil/avstring.h"
int ff_id3v2_match(const uint8_t *buf)
{
......@@ -45,3 +47,148 @@ int ff_id3v2_tag_len(const uint8_t * buf)
len += ID3v2_HEADER_SIZE;
return len;
}
static unsigned int get_size(ByteIOContext *s, int len)
{
int v=0;
while(len--)
v= (v<<7) + (get_byte(s)&0x7F);
return v;
}
static void read_ttag(AVFormatContext *s, int taglen, const char *key)
{
char *q, dst[512];
int len, dstlen = sizeof(dst) - 1;
unsigned genre;
dst[0]= 0;
if(taglen < 1)
return;
taglen--; /* account for encoding type byte */
switch(get_byte(s->pb)) { /* encoding type */
case 0: /* ISO-8859-1 (0 - 255 maps directly into unicode) */
q = dst;
while(taglen--) {
uint8_t tmp;
PUT_UTF8(get_byte(s->pb), tmp, if (q - dst < dstlen - 1) *q++ = tmp;)
}
*q = '\0';
break;
case 3: /* UTF-8 */
len = FFMIN(taglen, dstlen-1);
get_buffer(s->pb, dst, len);
dst[len] = 0;
break;
}
if (!strcmp(key, "genre")
&& (sscanf(dst, "(%d)", &genre) == 1 || sscanf(dst, "%d", &genre) == 1)
&& genre <= ID3v1_GENRE_MAX)
av_strlcpy(dst, ff_id3v1_genre_str[genre], sizeof(dst));
if (*dst)
av_metadata_set(&s->metadata, key, dst);
}
void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags)
{
int isv34, tlen;
uint32_t tag;
int64_t next;
int taghdrlen;
const char *reason;
switch(version) {
case 2:
if(flags & 0x40) {
reason = "compression";
goto error;
}
isv34 = 0;
taghdrlen = 6;
break;
case 3:
case 4:
isv34 = 1;
taghdrlen = 10;
break;
default:
reason = "version";
goto error;
}
if(flags & 0x80) {
reason = "unsynchronization";
goto error;
}
if(isv34 && flags & 0x40) /* Extended header present, just skip over it */
url_fskip(s->pb, get_size(s->pb, 4));
while(len >= taghdrlen) {
if(isv34) {
tag = get_be32(s->pb);
tlen = get_size(s->pb, 4);
get_be16(s->pb); /* flags */
} else {
tag = get_be24(s->pb);
tlen = get_size(s->pb, 3);
}
len -= taghdrlen + tlen;
if(len < 0)
break;
next = url_ftell(s->pb) + tlen;
switch(tag) {
case MKBETAG('T', 'I', 'T', '2'):
case MKBETAG(0, 'T', 'T', '2'):
read_ttag(s, tlen, "title");
break;
case MKBETAG('T', 'P', 'E', '1'):
case MKBETAG(0, 'T', 'P', '1'):
read_ttag(s, tlen, "author");
break;
case MKBETAG('T', 'A', 'L', 'B'):
case MKBETAG(0, 'T', 'A', 'L'):
read_ttag(s, tlen, "album");
break;
case MKBETAG('T', 'C', 'O', 'N'):
case MKBETAG(0, 'T', 'C', 'O'):
read_ttag(s, tlen, "genre");
break;
case MKBETAG('T', 'C', 'O', 'P'):
case MKBETAG(0, 'T', 'C', 'R'):
read_ttag(s, tlen, "copyright");
break;
case MKBETAG('T', 'R', 'C', 'K'):
case MKBETAG(0, 'T', 'R', 'K'):
read_ttag(s, tlen, "track");
break;
case 0:
/* padding, skip to end */
url_fskip(s->pb, len);
len = 0;
continue;
}
/* Skip to end of tag */
url_fseek(s->pb, next, SEEK_SET);
}
if(version == 4 && flags & 0x10) /* Footer preset, always 10 bytes, skip over it */
url_fskip(s->pb, 10);
return;
error:
av_log(s, AV_LOG_INFO, "ID3v2.%d tag skipped, cannot handle %s\n", version, reason);
url_fskip(s->pb, len);
}
......@@ -23,6 +23,7 @@
#define AVFORMAT_ID3V2_H
#include <stdint.h>
#include "avformat.h"
#define ID3v2_HEADER_SIZE 10
......@@ -39,4 +40,10 @@ int ff_id3v2_match(const uint8_t *buf);
*/
int ff_id3v2_tag_len(const uint8_t *buf);
/**
* ID3v2 parser
* Handles ID3v2.2, 2.3 and 2.4.
*/
void ff_id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags);
#endif /* AVFORMAT_ID3V2_H */
......@@ -25,290 +25,7 @@
#include "libavcodec/mpegaudiodecheader.h"
#include "avformat.h"
#include "id3v2.h"
#define ID3v1_TAG_SIZE 128
#define ID3v1_GENRE_MAX 125
static const char * const 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",
[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",
};
static unsigned int id3v2_get_size(ByteIOContext *s, int len)
{
int v=0;
while(len--)
v= (v<<7) + (get_byte(s)&0x7F);
return v;
}
static void id3v2_read_ttag(AVFormatContext *s, int taglen, const char *key)
{
char *q, dst[512];
int len, dstlen = sizeof(dst) - 1;
unsigned genre;
dst[0]= 0;
if(taglen < 1)
return;
taglen--; /* account for encoding type byte */
switch(get_byte(s->pb)) { /* encoding type */
case 0: /* ISO-8859-1 (0 - 255 maps directly into unicode) */
q = dst;
while(taglen--) {
uint8_t tmp;
PUT_UTF8(get_byte(s->pb), tmp, if (q - dst < dstlen - 1) *q++ = tmp;)
}
*q = '\0';
break;
case 3: /* UTF-8 */
len = FFMIN(taglen, dstlen-1);
get_buffer(s->pb, dst, len);
dst[len] = 0;
break;
}
if (!strcmp(key, "genre")
&& (sscanf(dst, "(%d)", &genre) == 1 || sscanf(dst, "%d", &genre) == 1)
&& genre <= ID3v1_GENRE_MAX)
av_strlcpy(dst, id3v1_genre_str[genre], sizeof(dst));
if (*dst)
av_metadata_set(&s->metadata, key, dst);
}
/**
* ID3v2 parser
*
* Handles ID3v2.2, 2.3 and 2.4.
*
*/
static void id3v2_parse(AVFormatContext *s, int len, uint8_t version, uint8_t flags)
{
int isv34, tlen;
uint32_t tag;
int64_t next;
int taghdrlen;
const char *reason;
switch(version) {
case 2:
if(flags & 0x40) {
reason = "compression";
goto error;
}
isv34 = 0;
taghdrlen = 6;
break;
case 3:
case 4:
isv34 = 1;
taghdrlen = 10;
break;
default:
reason = "version";
goto error;
}
if(flags & 0x80) {
reason = "unsynchronization";
goto error;
}
if(isv34 && flags & 0x40) /* Extended header present, just skip over it */
url_fskip(s->pb, id3v2_get_size(s->pb, 4));
while(len >= taghdrlen) {
if(isv34) {
tag = get_be32(s->pb);
tlen = id3v2_get_size(s->pb, 4);
get_be16(s->pb); /* flags */
} else {
tag = get_be24(s->pb);
tlen = id3v2_get_size(s->pb, 3);
}
len -= taghdrlen + tlen;
if(len < 0)
break;
next = url_ftell(s->pb) + tlen;