[FFmpeg-devel] [RFC] use ff_avc_find_startcode in ff_find_start_code

[Reimar Döffinger]

Hello,
On Tue, Feb 19, 2008 at 03:45:40PM +0100, Michael Niedermayer wrote:
> Heres a benchmark from just the call in the decoder (duron & matrixbench_mpeg2)
> ffmpeg -v 9 -i matrixbench_mpeg2.mpg -an -y -f rawvideo /dev/null
> current
> 2504 dezicycles in A2, 131069 runs, 3 skips
> 
> proposed
> 2832 dezicycles in A2, 131068 runs, 4 skips

Same command:
current:
751 dezicycles in A2, 15913 runs, 471 skips
759 dezicycles in A2, 31825 runs, 943 skips
774 dezicycles in A2, 63647 runs, 1889 skips
real    0m7.437s
user    0m7.136s
sys     0m0.280s


mine:
852 dezicycles in A2, 15912 runs, 472 skips
843 dezicycles in A2, 31824 runs, 944 skips
844 dezicycles in A2, 63644 runs, 1892 skips
real    0m6.943s
user    0m6.680s
sys     0m0.248s

Problem:
START_/STOP_TIMER and "time" vastly disagree.
And yes, I remembered to disable speedstep this time.

Greetings,
Reimar D?ffinger