[FFmpeg-devel] 回复： ffmpeg multithread decoding,the rate is not improved
756139849 at qq.com
Sat Apr 28 10:32:41 CEST 2012
Thank you for your answering!
first i use x264 to encode yuv stream ,my command line is:
time ./x264 --qp 26 --frames 10 --input-res 352x288 -o test.264 foreman_cif.yuv --threads 2 --sliced-threads
then i use ffmpeg
time ./ffmpeg -y -threads 2 -thread_type slice -i test.264 test.yuv
and i didn't consider that my test stream has slices or not,
because when i use annother command line:
time ./ffmpeg -y -threads 4 -i test.264 test.yuv
the rate is not improved either.
i want to improve about 50%~100%.
Thank you for you time again!
------------------ 原始邮件 ------------------
发件人: "Mashiat Sarker Shakkhar"<mashiat.sarker at gmail.com>;
发送时间: 2012年4月28日(星期六) 下午4:21
收件人: "FFmpeg development discussions and patches"<ffmpeg-devel at ffmpeg.org>;
主题: Re: [FFmpeg-devel] ffmpeg multithread decoding,the rate is not improved
On 4/28/2012 2:02 PM, 艾薇妮 wrote:
> I'm trying to decode .264 file using ffmpeg with -threads option,i'm using a dual-core computer and build ffmpeg using the pthread option,but the rate is not improved,i wonder what is the reason.
> my command line is:
> time ./ffmpeg -y -threads 2 -thread_type slice -i test.264 test.yuv
Did you check if your test stream even has slices? What rate are you
trying to improve?
Note: This is the development channel. Your question seems more
appropriate for the user channel.
ffmpeg-devel mailing list
ffmpeg-devel at ffmpeg.org
More information about the ffmpeg-devel