mp4 high CPU

[Tibo W]

Hi,

when I play a mp4 video file (I just need video, no sound), I get a high CPU load (1 core is 100% on a quad-core), and it takes 5s before I see the video:

gst-launch filesrc location=video.mp4 ! decodebin2 dec=name ! queue ! ffmpegcolorspace ! autovideosink

I just started with GStreamer so I apologize if the questions sound dumb:

- how can I tell if it's hardware accelerated (beside a lower CPU%) ?

- which decoder should I use ?

- how to improve the loading time ?

- what pipeline should I use if it's an mpeg-2 ?

I found some stuff online saying that ffmepgcolorspace does impact the CPU, but I don't know what else to use ?

I'm basically trying to figure out how to play the video with hardware acceleration.

- should I recompile a package ?

- should I find an existing plugin for my hardware ?

- how can I know which video my hardware support (I've got an intel N10 chipset, I think it handles mpeg-2, but not sure).

thanks a lot for your help guys !

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[Tim-Philipp Müller-2]

On Fri, 2012-03-23 at 21:56 -0700, Tibo W wrote:

Hi,

> when I play a mp4 video file (I just need video, no sound), I get a
> high CPU load (1 core is 100% on a quad-core), and it takes 5s before
> I see the video:
>
> gst-launch filesrc location=video.mp4 ! decodebin2 dec=name ! queue !
> ffmpegcolorspace ! autovideosink

Could you pass -v to gst-launch and show us the output you get?

Cheers
 -Tim



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