Fast AVI video speed

[ldac]

    Hi all,

I am trying to record video alive and to save it into an AVI file. My last problem with the avi file was fixed sending to the pipeline an EOS signal before stopping (with CTRL+C) as Jyoti pointed me (thanks).

    Now, I have "the last" problem with the video speed when I play it using VLC or any other player. I am recording a chronometer count of around 13 seconds, but when I play the file, it is played in less than 7 seconds!! I enclose the avi file, just as help.

    The pipeline that I am running is the following. I have added as many elements as I know to control de frame rate, but nothing works.

gst-launch-0.10 mfw_v4lsrc capture-width=640 capture-height=480 num-buffers=200 ! 'video/x-raw-yuv,framerate=25/1' ! mfw_vpuencoder framerate=25 width=640 height=480 codec-type=std_mpeg4 ! queue ! avimux ! filesink location=fast.avi

    Thanks one more time.
    Regards.
    LD.

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[Arnout Vandecappelle]

On Friday 08 May 2009 12:02:57 ldac wrote:

>     Now, I have "the last" problem with the video speed when I play it
> using VLC or any other player. I am recording a chronometer count of around
> 13 seconds, but when I play the file, it is played in less than 7 seconds!!
> I enclose the avi file, just as help.
>
>      The pipeline that I am running is the following. I have added as many
> elements as I know to control de frame rate, but nothing works.
>
>  gst-launch-0.10 mfw_v4lsrc capture-width=640 capture-height=480
> num-buffers=200 ! 'video/x-raw-yuv,framerate=25/1' ! mfw_vpuencoder
> framerate=25 width=640 height=480 codec-type=std_mpeg4 ! queue ! avimux !
> filesink location=fast.avi

 I guess your source element is not really grabbing frames at 25fps.  Indeed,
since you limit the capturing to 200 frames, this should be 8 seconds, not
13...  I guess mfw_vpuencoder doesn't look at timestamps, just at framerate.

 You can probably solve this by adding a videorate element before the encoder.

 Regards,
 Arnout

--
Arnout Vandecappelle                               arnout at mind be
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