Someone

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
INFO  (0x80e8fc8 - 0:00:00.287376000)        matroskademux(18077) matroska-demux.c(2667):gst_
matroska_demux_parse_contents_seekentry: Ignoring seekhead entry for ID=0x1549a966
INFO  (0x80e8fc8 - 0:00:00.287490000)        matroskademux(18077) matroska-demux.c(2667):gst_
matroska_demux_parse_contents_seekentry: Ignoring seekhead entry for ID=0x1654ae6b
INFO  (0x80e8fc8 - 0:00:00.287554000)        matroskademux(18077) matroska-demux.c(2667):gst_
matroska_demux_parse_contents_seekentry: Ignoring seekhead entry for ID=0x114d9b74
WARN  (0x80e8fc8 - 0:00:00.524254000)        matroskademux(18077) matroska-demux.c(791):gst_m
atroska_demux_add_stream: Unknown track header entry 0x55aa - ignoring
WARN  (0x80e8fc8 - 0:00:00.524433000)        matroskademux(18077) matroska-demux.c(791):gst_m
atroska_demux_add_stream: Unknown track header entry 0x23314f - ignoring
WARN  (0x80e8fc8 - 0:00:00.524469000)        matroskademux(18077) matroska-demux.c(791):gst_m
atroska_demux_add_stream: Unknown track header entry 0x55ee - ignoring
WARN  (0x80e8fc8 - 0:00:00.524513000)        matroskademux(18077) matroska-demux.c(791):gst_m
atroska_demux_add_stream: Unknown track header entry 0xaa - ignoring
WARN  (0x80e8fc8 - 0:00:00.524648000)        matroskademux(18077) matroska-demux.c(3388):gst_
matroska_demux_audio_caps: Unknown codec 'A_FLAC', cannot build Caps
WARN  (0x80e8fc8 - 0:00:00.524687000)        matroskademux(18077) matroska-demux.c(902):gst_m
atroska_demux_add_stream:<matroskademux0> could not determine caps for stream with codec_id='A_FLAC'
INFO  (0x80e8fc8 - 0:00:00.524775000)        matroskademux(18077) matroska-demux.c(932):gst_m
atroska_demux_add_stream:<matroskademux0> Adding pad 'audio_00' with caps audio/x-unknown
WARN  (0x80e8fc8 - 0:00:00.525373000)        matroskademux(18077) matroska-demux.c(791):gst_m
atroska_demux_add_stream: Unknown track header entry 0x55aa - ignoring
WARN  (0x80e8fc8 - 0:00:00.525433000)        matroskademux(18077) matroska-demux.c(791):gst_m
atroska_demux_add_stream: Unknown track header entry 0x23314f - ignoring
WARN  (0x80e8fc8 - 0:00:00.525465000)        matroskademux(18077) matroska-demux.c(791):gst_m
atroska_demux_add_stream: Unknown track header entry 0x55ee - ignoring
WARN  (0x80e8fc8 - 0:00:00.525510000)        matroskademux(18077) matroska-demux.c(791):gst_m
atroska_demux_add_stream: Unknown track header entry 0xaa - ignoring
WARN  (0x80e8fc8 - 0:00:00.525641000)        matroskademux(18077) matroska-demux.c(3388):gst_
matroska_demux_audio_caps: Unknown codec 'A_FLAC', cannot build Caps
WARN  (0x80e8fc8 - 0:00:00.525671000)        matroskademux(18077) matroska-demux.c(902):gst_m