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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hello,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am trying to find out why tsdemux fails to link the audio in the pipeline below. <o:p></o:p></p><p class=MsoNormal>The source has ac3 audio. <o:p></o:p></p><p class=MsoNormal>The tsdemux finds the audio track. <o:p></o:p></p><p class=MsoNormal>Gstreamer attempts to link tsdemux to ac3parse. <o:p></o:p></p><p class=MsoNormal>Why does gstreamer say the caps are incompatible?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>gst-launch-1.0 -v -e mpegtsmux name=m ! hlssink target-duration='15' udpsrc multicast-iface=lo uri=udp://231.8.6.7:5309 ! tsdemux ! ac3parse ! avdec_eac3 ! audioconvert ! voaacenc bitrate=128000 ! m.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>0:00:00.432638221 8327 0x1305400 INFO structure gststructure.c:2597:gst_structure_get_valist: Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)1, layout=(string)interleaved;<o:p></o:p></p><p class=MsoNormal>0:00:00.433040355 8327 0x1305400 INFO GST_ELEMENT_PADS gstutils.c:1227:gst_element_get_compatible_pad:<ac3parse0> Could not find a compatible pad to link to tsdemux0:video_0_0031<o:p></o:p></p><p class=MsoNormal>0:00:00.433082164 8327 0x1305400 INFO GST_PADS gstutils.c:1035:gst_pad_check_link: trying to link tsdemux0:audio_0_0033 and ac3parse0:sink<o:p></o:p></p><p class=MsoNormal>0:00:00.433321928 8327 0x1305400 INFO structure gststructure.c:2597:gst_structure_get_valist: Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)1, layout=(string)interleaved;<o:p></o:p></p><p class=MsoNormal>0:00:00.433674575 8327 0x1305400 INFO GST_ELEMENT_PADS gstelement.c:920:gst_element_get_static_pad: found pad ac3parse0:sink<o:p></o:p></p><p class=MsoNormal>0:00:00.433713938 8327 0x1305400 INFO GST_PADS gstutils.c:1588:prepare_link_maybe_ghosting: tsdemux0 and ac3parse0 in same bin, no need for ghost pads<o:p></o:p></p><p class=MsoNormal>0:00:00.433753875 8327 0x1305400 INFO GST_PADS gstpad.c:2378:gst_pad_link_prepare: trying to link tsdemux0:audio_0_0033 and ac3parse0:sink<o:p></o:p></p><p class=MsoNormal>0:00:00.434008825 8327 0x1305400 INFO structure gststructure.c:2597:gst_structure_get_valist: Expected field 'channel-mask' in structure: audio/x-raw, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000 }, channels=(int)1, layout=(string)interleaved;<o:p></o:p></p><p class=MsoNormal>0:00:00.434310938 8327 0x1305400 INFO GST_PADS gstpad.c:2434:gst_pad_link_prepare: caps are incompatible<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-family:Consolas'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:Consolas'>Rand<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>