<html><head><style>P {margin-top:2px;margin-bottom:2px;}</style></head><body><div style="font-size:10pt; font-family:gulim,Gulim,AppleGothic,sans-serif;"><P>Hi All,</P>
<P> </P>
<P>I'm testing FFMPEG performance with libx264 for H.264 encoding.</P>
<P>I found there may 2 or 3 seconds delay on receiving PC.</P>
<P> </P>
<P>The command is as follows:</P>
<P>ffmpeg -r 30 -f vfwcap -s 1280x720 -i 0 -vcodec libx264 -b 2000k -minrate 1000k -coder 0 -flags +loop+cgop -cmp +chroma -partitions -parti8x8+parti4x4+partp8x8-partp4x4-partb8x8 -me_method dia -subq 3 -me_range 24 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -directpred 1 -flags2 +fastpskip -refs 6 -subq 5 -f rtp rtp://192.168.1.100:40000</P>
<P> </P>
<P>I also tested cif resolution and I got same result, 2 or 3 seconds delay.</P>
<P>I captured the rtp packets and I found there is no many packets to be sent on receiving side.</P>
<P> </P>
<P>In general, how many packets to be sent under <A href="mailto:1280x720@30fps">1280x720@30fps</A>?</P>
<P> </P>
<P>the decoding picture quality was good but there was delay.</P>
<P> </P>
<P>I wonder there is missing point on above command or something.</P>
<P> </P>
<P>Please advise something to me.</P>
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<P>Thanks</P>
<P>hsk</P></div></body></html><!--navermail.footer.start-->
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