ffdec_mpeg4 Bitrate Issue....

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ffdec_mpeg4 Bitrate Issue....

Manish Rana
Hi All,

I am trying to set bitrate=48000 on ffdec_mpeg4, and then transmitting the data using gstRTPbin and UDP.
On the other end i tried calculating the data rate coming. I used WireShark for the same.

After removing RTP/UDP/eth0 and all other header's the data rate is coming around 200kbps.

FPS at the VideoSrc is 10. GOP size is 30.

Can someone guide me what do i need to get the lower and constant bit rate from encoder.
As this is eating all the bandwidth. and all my application is going for toss :"(

Also i have seen there are some properties of ffenc_mpeg4 that are used for Rate Control.

Please let me know. Also suggest to me to reduce overhead and ways to reduce the bitrate in RTP.

I am in urgent need,

Thanks a lot
Manish

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Re: ffdec_mpeg4 Bitrate Issue....

Manish Rana


On Tue, Sep 2, 2008 at 7:01 PM, Manish Rana <[hidden email]> wrote:
Hi All,

I am trying to set bitrate=48000 on ffdec_mpeg4, and then transmitting the data using gstRTPbin and UDP.
On the other end i tried calculating the data rate coming. I used WireShark for the same.

After removing RTP/UDP/eth0 and all other header's the data rate is coming around 200kbps.

FPS at the VideoSrc is 10. GOP size is 30.

Can someone guide me what do i need to get the lower and constant bit rate from encoder.
As this is eating all the bandwidth. and all my application is going for toss :"(

Also i have seen there are some properties of ffenc_mpeg4 that are used for Rate Control.

Please let me know. Also suggest to me to reduce overhead and ways to reduce the bitrate in RTP.

I am in urgent need,

Thanks a lot
Manish


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Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
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