[FFmpeg-devel] [PATCH] lavc/hevc: rudimentary support for skip_loop_filter.

Michael Niedermayer michael at niedermayer.cc
Thu Jul 23 14:31:26 CEST 2015

On Thu, Jul 23, 2015 at 12:33:37PM +0200, Nicolas George wrote:
> All frames are treated as ref frames, skipping only applies
> at level "all".
> +~9% speed on Core i5 on test sample.
> Signed-off-by: Nicolas George <george at nsup.org>
> ---
>  libavcodec/hevc_filter.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)


> I have a few clips that an Atom struggles to decode in real time. I am way
> out of my depth, but I thought I could give it a try. I could not see the
> differences with the naked eye.
> If someone knows how to know what frames are ref, B, etc...

i belive the nal_unit_type and temporal_id can be used to determine
if a picture is a "reference"

all the slices slice_types can be used to determine the picture type,
which should also be in the AU delimiter if there is one


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Concerning the gods, I have no means of knowing whether they exist or not
or of what sort they may be, because of the obscurity of the subject, and
the brevity of human life -- Protagoras
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