[x264-devel] chroma_format_idc parameter

[Eric Petit]

On Oct 14, 2007, at 8:51 AM, Viet Dung wrote:
> Hi,
> I'm using the Alex Izvorski's project to generate the bitstream's  
> header. In this bitstream i found that the parameter  
> chroma_format_idc = 0, it means all the slices in this video  
> sequence have chroma components equal to zero? But why the chroma  
> coefficients(include DC and AC ones, all these have value <> 0) are  
> encoded and transfered?
> Thank you!

  h264bitstream probably shows chroma_format_idc = 0 because it is  
not present in the bitstream. But in that case, chroma_format_idc is  
actually inferred to be equal to 1.

-- 
Eric