gst pipeline will cause audio ringbuffer blocked

[Hunter]

Hello everyone,

I want to play a mp4 file like this:
gst-launch-1.0 filesrc location=/workspace/avdata/h264/3.mp4 ! qtdemux
name=mx mx.! queue ! avdec_aac ! alsasink  mx. ! queue ! h264parse !
avdec_h264 ! autovideoconvert ! ximagesink

But this can not be played because audio ring buffer are waiting some
signals.

If I use:

gst-launch-1.0 playbin uri=file:///workspace/avdata/h264/3.mp4

This will be OK.

What is the problem of my first command line?

Thanks.



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