Hi,I'm developing tvp5158's driver with linux-2.6.32 on dm6467t board,now I need to demux the captured Superframe.But I'm still a little confusedabout the data format of 4-ch D1(PAL),BT.656,Line-interleaved mode.Q1:In 4Ch-D1(PAL)mode,the Superframe size is 728x2500(625x4),if it is stored on DDR2 as YUV422Semi-planar,what it will be?Like this ?
----------------------------------------|| || 728x2500(Luma data) | (720 Y0,Y1,Y2,...,Y720,what's the other 8 bytes?)| |----------------------------------------|| || 728x2500(Chroma Data) | | |----------------------------------------|
if I want to demux the line-interleaved video,how to realize it?
There is a TVP5158 to DM6467 driver here.
Other info is under announcements.
In reply to Tom Ballew:
Thank you for your reply,I'm afraid I can't use mcvip_tvp5158 driver,because the kernel is Linux-2.6.32-rc2-davinci1,dvsdk version is dvsdk_3_10_00_19,are you sure this is already the latest tvp5158 driver for DM6467T board? Thanks!
In reply to xiaoyu yang:
The linker Tom pointed out just is our referece code,based on one version SDK,one version linux kernel. For TVP5158,its registers' settings and demux module is the same.
I suggest you to read mcvip_dumux.c/mcvip_tvp5158.c/mcvip_tvp5158_i2c.c.
Now,about your question,superframe's structure,which is:
Metedata(8 bytes) ==>Cb0,Y0,Cr0,Y1...........(total 720*2=1440 bytes)==>Metedata(8 bytes) ==>Cb0,Y0,Cr0,Y1...........(total 720*2=1440 bytes)==>......
One metedata,one line.
Attention:these lines include VBI data,dummy lines and active lines.
In reply to LeonYu:
I have realized demux funciton,according to the ChId,LineId,f_bit and v_bit information from metaData.I just want to make sure my understanding is right.Thank you again
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