[Libav-user] h264 encode speed

Alex Cohn alexcohn at netvision.net.il
Tue Jul 19 10:05:42 CEST 2011

On Tue, Jul 19, 2011 at 10:48, hz nan <nhongzhen at gmail.com> wrote:

> Hi
> I need to using H264 to live broadcast and it need 25 frames in one
> second., so I need to encode 25 frames
> in one second. If the frame is 160*120 or 320*240 ,it is ok. But if it is
> 640*480, it need more than 70ms to
> encode one frame. Does anyone have suggestion about how to increase encode
> and decode speed?
> Thanks  Hongzhen Nan
If you don't have h/w support for h264, I would consider MPEG4 encoder,
which is much faster both for encoding and decoding (but looses on

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