[FFmpeg-devel] Test Result

[Ali KIZIL]

Yestday, I got the latest snaphot from GIT and tested the case.
On a CBR test, if outpur bandwidth rate is high, some decoders/TS analyze SWs 
give PCR accuracy and repetition error (very rare).

Example:
ffmpeg -i pipe -aspect 16:9 -fflags +genpts -vcodec libx264 -preset ultrafast 
-vb 25000k -minrate 25000k -maxrate 25000k -bufsize 2500k -muxrate 27000k -
tune stillimage -qmin 20 -pix_fmt yuv420p -vbsf h264_mp4toannexb -strict 
experimental -acodec libfdk_aac -ab 128k -flush_packets 0 -f mpegts 
'udp://225.2.1.1:1234?pkt_size=1316'

This works fine. Time to time on some decoders (like Ericsson) make black 
frame. But no PCR error.

ffmpeg -i pipe -aspect 16:9 -fflags +genpts -vcodec libx264 -preset ultrafast 
-vb 50000k -minrate 50000k -maxrate 50000k -bufsize 10000k -muxrate 54000k -
tune stillimage -qmin 20 -pix_fmt yuv420p -vbsf h264_mp4toannexb -strict 
experimental -acodec libfdk_aac -ab 128k -flush_packets 0 -f mpegts 
'udp://225.2.1.1:1234?pkt_size=1316'

In this case, it reports PCR accuracy and repetition error and decoders gives 
alarm as well.

BR,