About our colour issues while capturing:
We are working with BlueTechnix SBC-i.MX51 and Texas Instrument TVP5147 Video Decoder.
After loading the corresponding modules:
modprobe tvp5147_tvin
modprobe mxc_v4l2_capture
We tried the following in order to capture raw video:
cd /unit_tests/
./mxc_v4l2_capture.out -ih 680 -iw 240 -oh 640 -ow 360 -fr 30 -f YUYV test.yuv
We were able to do it, and then we could play it with mplayer on our host machine with: "mplayer -rawvideo w=640:h=360:fps=30:f=YUY2 -demuxer rawvideo"
While doing this we found some color issues.
With this post I'm uploading a picture where this can be appreciated (we use the plain colors Blue, Red and Green as inputs, and a TestSignal too).
As it can be seen, the colour is well displayed only at certain alternating vertical bars.
Any ideas of what may the problem is?
Hi Hake,
We found that the problem was being caused by a hardware issue of our tvp5147 tvin board.
We asked Texas Instrument people, and we found out that we had a bad crystal on our board, here is the forum where we discussed it:
http://e2e.ti.com/support/data_converters/videoconverters/f/376/p/142207/513278.aspx#513278
Thanks for your interest!
Regards,
Lautaro.