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| author | Michael Karcher <ffmpeg@mkarcher.dialup.fu-berlin.de> | 2010-06-11 13:44:57 +0000 |
|---|---|---|
| committer | Carl Eugen Hoyos <cehoyos@rainbow.studorg.tuwien.ac.at> | 2010-06-11 13:44:57 +0000 |
| commit | 3a1350e8d9955a5eb9ec90f9b3e27ae63c3fb0bb (patch) | |
| tree | 0c5f4ce531628c132328144c7d0e1ed76b642393 /libavformat/id3v2.c | |
| parent | 1c1697117dbd2923d5876c10a1ebaeec233338b5 (diff) | |
| download | ffmpeg-3a1350e8d9955a5eb9ec90f9b3e27ae63c3fb0bb.tar.gz | |
Generalize ID3v2 functions to support ID3v2-like ID headers with a
different magic in the header (mainly targeted to Sony's .oma/.aa3
format).
Patch by Michael Karcher, ffmpeg A mkarcher dialup fu-berlin de
Originally committed as revision 23583 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/id3v2.c')
| -rw-r--r-- | libavformat/id3v2.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/libavformat/id3v2.c b/libavformat/id3v2.c index 6fa11db6c0..7e4a16fae8 100644 --- a/libavformat/id3v2.c +++ b/libavformat/id3v2.c @@ -22,12 +22,13 @@ #include "id3v2.h" #include "id3v1.h" #include "libavutil/avstring.h" +#include "libavutil/intreadwrite.h" -int ff_id3v2_match(const uint8_t *buf) +int ff_id3v2_match(const uint8_t *buf, const char * magic) { - return buf[0] == 'I' && - buf[1] == 'D' && - buf[2] == '3' && + return buf[0] == magic[0] && + buf[1] == magic[1] && + buf[2] == magic[2] && buf[3] != 0xff && buf[4] != 0xff && (buf[6] & 0x80) == 0 && @@ -48,7 +49,7 @@ int ff_id3v2_tag_len(const uint8_t * buf) return len; } -void ff_id3v2_read(AVFormatContext *s) +void ff_id3v2_read(AVFormatContext *s, const char *magic) { int len, ret; uint8_t buf[ID3v2_HEADER_SIZE]; @@ -56,7 +57,7 @@ void ff_id3v2_read(AVFormatContext *s) ret = get_buffer(s->pb, buf, ID3v2_HEADER_SIZE); if (ret != ID3v2_HEADER_SIZE) return; - if (ff_id3v2_match(buf)) { + if (ff_id3v2_match(buf, magic)) { /* parse ID3v2 header */ len = ((buf[6] & 0x7f) << 21) | ((buf[7] & 0x7f) << 14) | |