har0ke/FFmpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Read all id3v2 tags at the beginning of mp3 files.

Browse Source 
Patch by David Byron, dbyron dbyron com

Originally committed as revision 25105 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Byron 2010-09-11 16:29:23 +00:00 committed by Carl Eugen Hoyos
parent 0132ab80a8
commit 0c41d554e2
2 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavformat/avformat.h
View File

@ -23,7 +23,7 @@
#define LIBAVFORMAT_VERSION_MAJOR 52
#define LIBAVFORMAT_VERSION_MINOR 78
#define LIBAVFORMAT_VERSION_MICRO 4
#define LIBAVFORMAT_VERSION_MICRO 5
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \

11
libavformat/id3v2.c
View File

@ -53,11 +53,17 @@ void ff_id3v2_read(AVFormatContext *s, const char *magic)
{
int len, ret;
uint8_t buf[ID3v2_HEADER_SIZE];
int found_header;
int64_t off;
do {
/* save the current offset in case there's nothing to read/skip */
off = url_ftell(s->pb);
ret = get_buffer(s->pb, buf, ID3v2_HEADER_SIZE);
if (ret != ID3v2_HEADER_SIZE)
return;
if (ff_id3v2_match(buf, magic)) {
found_header = ff_id3v2_match(buf, magic);
if (found_header) {
/* parse ID3v2 header */
len = ((buf[6] & 0x7f) << 21) |
((buf[7] & 0x7f) << 14) |
@ -65,8 +71,9 @@ void ff_id3v2_read(AVFormatContext *s, const char *magic)
(buf[9] & 0x7f);
ff_id3v2_parse(s, len, buf[3], buf[5]);
} else {
url_fseek(s->pb, 0, SEEK_SET);
url_fseek(s->pb, off, SEEK_SET);
}
} while (found_header);
}
static unsigned int get_size(ByteIOContext *s, int len)