I use the gstreamer to decode the H264, when I use the pipeline like this:
gst-launch-1.0 udpsrc uri=udp://0.0.0.0:15550 caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,payload=(int)33,encoding-name=(string)MP2T" ! .recv_rtp_sink_0 rtpbin latency=800 ! rtpmp2tdepay ! tsdemux name=demux demux. ! h264parse ! queue ! omxh264dec ! vspfilter ! video/x-raw,width=800,height=480 ! waylandsink sync=false max-lateness=-1 demux. ! aacparse ! queue max-size-buffers=8192000 max-size-time=2000000000 ! faad ! alsasink device=media
there would be only about 200ms delay.
And when I set the sync=true, like this:
gst-launch-1.0 udpsrc uri=udp://0.0.0.0:15550 caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,payload=(int)33,encoding-name=(string)MP2T" ! .recv_rtp_sink_0 rtpbin latency=800 ! rtpmp2tdepay ! tsdemux name=demux demux. ! h264parse ! queue ! omxh264dec ! vspfilter ! video/x-raw,width=800,height=480 ! waylandsink sync=true max-lateness=-1 demux. ! aacparse ! queue max-size-buffers=8192000 max-size-time=2000000000 ! faad ! alsasink device=media
the dalay would reach 1200ms
I have no idea about it.
