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-   -   Question about RTD VFG7350,Compressed video capture,Mplayer,Cat video (http://www.linuxquestions.org/questions/linux-hardware-18/question-about-rtd-vfg7350-compressed-video-capture-mplayer-cat-video-781187/)

dxj 01-10-2010 01:51 AM

Question about RTD VFG7350,Compressed video capture,Mplayer,Cat video
 
Question about RTD VFG7350,Compressed video capture,Mplayer,Cat

I use VFG7350 for capture compressed video and store mpeg files.
The cpu is Intel(R) Celeron(R) M processor 900MHz
The Operating System is Linux Fedora 9 kenerl 2.6.25 2.6.25-14.fc9.i686
I did not modify the board and the OS

firstly,
I use command "cat /dev/video2 > /home/test.mpeg" failed! There is an error:
cat: /dev/video2: Input/output error
and the file test.mpeg is zero bytes.

if i did not use the video2 (compressed ) I use " cat /dev/video0 > /home/testuncompress.avi"
the file testuncompress.avi is not zero Bytes , it is very big. but I use mplayer and can not play the file .

secondly,
I install mplayer.
I use command : "mplayer -dumpstream -dumfile /dev/video2 test.mpeg". the command immediately finished and the file is zero bytes.
if i use video0 , the file is nozero bytes. but can not be played by Mplayer.

infact the module such saa7134, saa7134_compress,saa6752,i2c and so on are all existed and can be displayed by command lsmod. And the driver saa7134, V4l2 and i2c are all right.

how to capture the compressed video???

acid_kewpie 01-10-2010 05:32 AM

Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being closed because it is a duplicate.


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