[Ffmpeg-devel] profiling libavcodec
Tue Jan 24 20:51:10 CET 2006
> I want to analyse the bottleneck of libavcodec on the MPEG2 decoding
> So I enabled gprof and played a MPEG2 TS using ffplay.
> But the results I've found are not very good:
> % time secs secs calls ms/call ms/call name
> 100.00 0.01 0.01 1666 0.01 0.01 video_image_display
> So I disabled the graphical display, but, then, all functions appear with %
> execution time = 0%.
> Can anyone help me?
I don't do much profiling but maybe ffplay's threading is messing with
the profiling? Maybe try the safe, singly-threaded ffmpeg transcoder
(transcode to raw formats and send them to /dev/null).
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