#include "input_internal.h"
-static void SkipID3Tag( demux_t * );
+static vlc_bool_t SkipID3Tag( demux_t * );
+static vlc_bool_t SkipAPETag( demux_t *p_demux );
/*****************************************************************************
* demux2_New:
if( s )
{
- /* ID3 tags will mess-up demuxer probing so we skip it here.
- * ID3 parsers will called later on in the demuxer to access the
+ /* ID3/APE tags will mess-up demuxer probing so we skip it here.
+ * ID3/APE parsers will called later on in the demuxer to access the
* skipped info. */
- SkipID3Tag( p_demux );
+ if( !SkipID3Tag( p_demux ) )
+ SkipAPETag( p_demux );
p_demux->p_module =
module_Need( p_demux, "demux2", psz_module,
/****************************************************************************
* Utility functions
****************************************************************************/
-static void SkipID3Tag( demux_t *p_demux )
+static vlc_bool_t SkipID3Tag( demux_t *p_demux )
{
const uint8_t *p_peek;
uint8_t version, revision;
int i_size;
int b_footer;
- if( !p_demux->s ) return;
+ if( !p_demux->s )
+ return VLC_FALSE;
/* Get 10 byte id3 header */
- if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return;
+ if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 )
+ return VLC_FALSE;
- if( p_peek[0] != 'I' || p_peek[1] != 'D' || p_peek[2] != '3' ) return;
+ if( memcmp( p_peek, "ID3", 3 ) )
+ return VLC_FALSE;
version = p_peek[3];
revision = p_peek[4];
msg_Dbg( p_demux, "ID3v2.%d revision %d tag found, skipping %d bytes",
version, revision, i_size );
+ return VLC_TRUE;
+}
+static vlc_bool_t SkipAPETag( demux_t *p_demux )
+{
+ const uint8_t *p_peek;
+ int i_version;
+ int i_size;
+ uint32_t flags;
+
+ if( !p_demux->s )
+ return VLC_FALSE;
+
+ /* Get 32 byte ape header */
+ if( stream_Peek( p_demux->s, &p_peek, 32 ) < 32 )
+ return VLC_FALSE;
+
+ if( memcmp( p_peek, "APETAGEX", 8 ) )
+ return VLC_FALSE;
- return;
+ i_version = GetDWLE( &p_peek[8] );
+ flags = GetDWLE( &p_peek[8+4+4] );
+ if( ( i_version != 1000 && i_version != 2000 ) || !( flags & (1<<29) ) )
+ return VLC_FALSE;
+
+ i_size = GetDWLE( &p_peek[8+4] ) + ( (flags&(1<<30)) ? 32 : 0 );
+
+ /* Skip the entire tag */
+ stream_Read( p_demux->s, NULL, i_size );
+
+ msg_Dbg( p_demux, "AP2 v%d tag found, skipping %d bytes",
+ i_version/1000, i_size );
+ return VLC_TRUE;
}
+