[FFmpeg-devel] [PATCH] H.264: Record slice_qs_delta syntax element
Sun Dec 20 16:30:55 CET 2009
On Sat, 12 Dec 2009, Michael Niedermayer wrote:
> On Fri, Dec 11, 2009 at 03:25:34PM +0100, Gwenole Beauchesne wrote:
>> slice_qp_delta and slice_qs_delta values from the bitstream are
>> respectively needed for VAAPI,DXVA and DXVA.
>> The former could be
>> reconstructed with a single subtraction though.
> then i would suggest to do it with a subtraction
This is what we currently do but I felt having both recorded was better
for consistency. qscale doesn't seem to be altered elsewhere for h264, so
keeping the subtraction is ok for slice_qp_delta.
Anyway, here is a new patch with only slice_qs_delta.
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