Stalling pipeline when one of the streams doesn't exist

[aag]

I have been using the following pipeline to process some files (custom
filters removed to simplify the example, and make sure the problem still
occurs without proprietary additions):

gst-launch-1.0 -e -f --gst-debug=*:5 filesrc location=file1.mp4 ! qtdemux
name=src ! decodebin  ! "video/x-raw, format=I420" ! x264enc threads=6
speed-preset=1 ! video/x-h264, profile=baseline ! queue name=“muxq” ! mp4mux
name=mux ! filesink location=file2.mp4 src. ! queue name=“audioq” ! mux.


As long as the pipeline was applied to audio/video files, it worked great.
However, when I fed it a file with no audio stream, the pipeline is
stalling:

r 0:00:00.066992187, size 17709, offset none, offset_end none, flags 0x2000
0:00:01.258508031  6779       0xe9a990 DEBUG         queue_dataflow
gstqueue.c:1274:gst_queue_chain_buffer_or_list:<“muxq”> queue is full,
waiting for free space

Is there a way to work around this, if I want the same pipeline process mpeg
files regardless of whether they have audio stream?



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