avfilter: add vf_yadif_videotoolbox

deinterlaces CVPixelBuffers, i.e. AV_PIX_FMT_VIDEOTOOLBOX frames

for example, an interlaced mpeg2 video can be decoded by avcodec,
uploaded into a CVPixelBuffer, deinterlaced by Metal, and then
encoded to h264 by VideoToolbox as follows:

    ffmpeg \
           -init_hw_device videotoolbox \
           -i interlaced.ts \
           -vf hwupload,yadif_videotoolbox \
           -c:v h264_videotoolbox \
           -b:v 2000k \
           -c:a copy \
           -y progressive.ts

(note that uploading AVFrame into CVPixelBuffer via hwupload
 requires 504c60660d3194758823ddd45ceddb86e35d806f)

this work is sponsored by Fancy Bits LLC

Reviewed-by: Ridley Combs <rcombs@rcombs.me>
Reviewed-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Aman Karmani <aman@tmm1.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/Changelog b/Changelog
index 5c6adc0fa7..11f5d358c0 100644
--- a/Changelog
+++ b/Changelog
@@ -41,6 +41,7 @@ version <next>:
 - libplacebo filter
 - vflip_vulkan, hflip_vulkan and flip_vulkan filters
 - adynamicequalizer audio filter
+- yadif_videotoolbox filter
 
 
 version 4.4: