remultiplexing a stream with gstreamer stops in PREROLLING
问题 i'm trying to re-multiplex a quicktime movie (video/jpeg, audio/mpeg) using gstreamer. gst-launch filesrc location="${INFILE}" \ ! qtdemux name=demux \ ! queue \ ! qtmux name=mux \ ! filesink location="${OUTFILE}" \ demux.audio_00 \ ! queue \ ! mux.audio_0 unfortunately this pipeline does not start (it starts PREROLLING and then waits). if i omit the audio stream (or specify a non-existing sink-pad for the audio-stream (e.g. mux.audio.0 ), remultiplexing is done (but without audio) to give a