[FFmpeg-devel] [PATCH] libavfilter/vaapi: enable vaapi rotation feature via call Intel iHD driver

[Michael Niedermayer]

On Tue, Oct 23, 2018 at 03:52:40PM +0800, Zachary Zhou wrote:
> It supports clockwise rotation by 0/90/180/270 degrees defined in
> va/va_vpp.h, tested following command line on SKL platform
> 
> ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128
> -hwaccel_output_format vaapi -i input.264 -vf "rotation_vaapi=angle=90"
> -c:v h264_vaapi output.h264
> ---
>  libavfilter/Makefile        |   1 +
>  libavfilter/allfilters.c    |   1 +
>  libavfilter/vaapi_vpp.h     |   1 +
>  libavfilter/vf_misc_vaapi.c | 122 ++++++++++++++++++++++++++++++++++++
>  4 files changed, 125 insertions(+)

breaks build
make distclean ; ./configure && make -j12
...
libavfilter/vf_misc_vaapi.c: In function ‘rotation_vaapi_build_filter_params’:
libavfilter/vf_misc_vaapi.c:165:23: error: ‘VAProcPipelineCaps’ has no member named ‘rotation_flags’
     if (!pipeline_caps.rotation_flags) {
                       ^
libavfilter/vf_misc_vaapi.c:191:33: error: ‘VAProcPipelineCaps’ has no member named ‘rotation_flags’
     support_flag = pipeline_caps.rotation_flags &
                                 ^
libavfilter/vf_misc_vaapi.c: In function ‘misc_vaapi_filter_frame’:
libavfilter/vf_misc_vaapi.c:248:15: error: ‘VAProcPipelineParameterBuffer’ has no member named ‘rotation_state’
         params.rotation_state = vpp_ctx->rotation_state;
               ^
make: *** [libavfilter/vf_misc_vaapi.o] Error 1
make: *** Waiting for unfinished jobs....


[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Asymptotically faster algorithms should always be preferred if you have
asymptotical amounts of data
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