[FFmpeg-devel] [PATCH 4/5] avfilter/vf_thumbnail_cuda: Switch to using ffnvcodec

[Philip Langdale]

On Fri, 22 Feb 2019 05:46:12 +0000
Soft Works <softworkz at hotmail.com> wrote:

> > Subject: [FFmpeg-devel] [PATCH 4/5] avfilter/vf_thumbnail_cuda:
> > Switch to using ffnvcodec
> >
> > This change switches the vf_thumbnail_cuda filter from using the
> > full cuda sdk to using the ffnvcodec headers and loader.
> >
> > Most of the change is a direct mapping, but I also switched from
> > using texture references to using texture objects. This is supposed
> > to be the preferred way of using textures, and the texture object
> > API is the one I added to ffnvcodec.
> >
> > Signed-off-by: Philip Langdale <philipl at overt.org>
> > ---
> >  configure                        |   2 +-
> >  libavfilter/vf_thumbnail_cuda.c  | 147
> > +++++++++++++++++-------------- libavfilter/vf_thumbnail_cuda.cu |
> > 25 +++--- 3 files changed, 93 insertions(+), 81 deletions(-)  
> 
> > -    CHECK_CU(cuMemsetD8(s->data, 0, HIST_SIZE * sizeof(int)));
> > +    CHECK_CU(cu->cuMemsetD8Async(s->data, 0, HIST_SIZE *
> > sizeof(int), s->cu_stream));  
> Hi Phil,
> 
> the only problem I encountered was the cuMemsetD8Async function
> which needs yet to be added to the ffnvcodec headers.
> 
> The other filters are building fine (MSYS2/Win).

https://github.com/philipl/nv-codec-headers/commit/dc12b592e5efc195d75363b8aae74db1180c9b0d

--phil