rtmpsrc will stuck if the stream does not have audio track

[Tim Müller]

On Mon, 2019-07-08 at 00:44 -0500, leeoxiang wrote:

Hi,

> I am using rtmpsrc  and flvdemux to demux the rtmp stream and then
> send video and audio with udp ,
> 
> My src stream does not have audio track sometimes,  in this case,  it
> will stuck the pipeline.
> 
> Anyone can help me with this?
> 
> ```
> gst-launch-1.0 -v rtmpsrc location=rtmp://localhost/live/stream  !
> flvdemux
> name=demux demux.audio ! queue ! decodebin ! audioconvert !
> audioresample !
> opusenc ! rtpopuspay timestamp-offset=0  ! udpsink  host=127.0.0.1
> port=5000
> demux.video! queue ! h264parse ! rtph264pay timestamp-offset=0
> config-interval=-1  ! udpsink  host=127.0.0.1 port=5002
> ``

You could try setting udpsink async=false on the udpsink of the audio
branch.

Cheers
 Tim

-- 
Tim Müller, Centricular Ltd - http://www.centricular.com