Hi All,
I am working on capturing video in 8 bit RAW mode on DM642 with Tec well
Decoder TW2815. I used VSync as CAPEN signal in RAW mode. Until now, i was able
to capture the video, but the video data is not synchronized. That means the
first pixel of capture buffer does not the first pixel (first line) of current
frame, this leads data is skewed to different offset each time i run the
program.
I faced same video synchronization problem on DM642EVM V1 board with Philps
decoder SAA7115 also. I saw earlier mails in dsprealted.com related to same
synchronization problem. Is any body Successdded in capturing video in RAW mode
on DM642 with out any synchronization problem?
I have serious dead lines, please give Ur valuable suggestions.
Pleaseeeeeeee
Thanks and Regards
Venki
---------------------------------
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Reg:Synchronizaion in RAW mode+DM642+Pleae Urgent
Started by ●October 28, 2007
Reply by ●October 30, 20072007-10-30
What is the analog signal formart is input to TW8215 decoder and
what is the output format? If it is a standard CVBS, why not use
BT.656 mode?
Cheers,
Andrew
> Subject: Reg:Synchronizaion in RAW mode+DM642+Pleae Urgent
> Posted by: "venkat arvapalli" a...@yahoo.co.in avr_psg
> Date: Sun Oct 28, 2007 7:21 am ((PDT))
> Hi All,
> I am working on capturing video in 8 bit RAW mode on DM642 with Tec well
> Decoder TW2815. I used
> VSync as CAPEN signal in RAW mode. Until now, i was able to capture the
> video, but the video data is
> not synchronized. That means the first pixel of capture buffer does not the
> first pixel (first line)
> of current frame, this leads data is skewed to different offset each time i
> run the program.
>
> I faced same video synchronization problem on DM642EVM V1 board with Philps
> decoder SAA7115 also. I
> saw earlier mails in dsprealted.com related to same synchronization problem.
> Is any body Successdded
> in capturing video in RAW mode on DM642 with out any synchronization problem?
>
> I have serious dead lines, please give Ur valuable suggestions. Pleaseeeeeeee
>
> Thanks and Regards
> Venki
>
what is the output format? If it is a standard CVBS, why not use
BT.656 mode?
Cheers,
Andrew
> Subject: Reg:Synchronizaion in RAW mode+DM642+Pleae Urgent
> Posted by: "venkat arvapalli" a...@yahoo.co.in avr_psg
> Date: Sun Oct 28, 2007 7:21 am ((PDT))
> Hi All,
> I am working on capturing video in 8 bit RAW mode on DM642 with Tec well
> Decoder TW2815. I used
> VSync as CAPEN signal in RAW mode. Until now, i was able to capture the
> video, but the video data is
> not synchronized. That means the first pixel of capture buffer does not the
> first pixel (first line)
> of current frame, this leads data is skewed to different offset each time i
> run the program.
>
> I faced same video synchronization problem on DM642EVM V1 board with Philps
> decoder SAA7115 also. I
> saw earlier mails in dsprealted.com related to same synchronization problem.
> Is any body Successdded
> in capturing video in RAW mode on DM642 with out any synchronization problem?
>
> I have serious dead lines, please give Ur valuable suggestions. Pleaseeeeeeee
>
> Thanks and Regards
> Venki
>
