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3 Commits

Author SHA1 Message Date
Tong Wu
b1d410716b lavc/d3d12va_encode: trim header alignment at output 
It is d3d12va's requirement that the FrameStartOffset must be aligned as
per hardware limitation. However, we could trim this alignment at output
to reduce coded size. A aligned_header_size is added to
D3D12VAEncodePicture.

Signed-off-by: Tong Wu <wutong1208@outlook.com>
 2024-07-28 17:50:30 +02:00
Tong Wu
e783e45e29 avcodec/hw_base_encode: avoid getting FFHWBaseEncodeContext from avctx 
This patch is to make FFHWBaseEncodeContext a standalone component
and avoid getting FFHWBaseEncodeContext from avctx->priv_data.
This patch also removes some unnecessary AVCodecContext arguments.

For receive_packet call, a small wrapper is introduced.

Signed-off-by: Tong Wu <tong1.wu@intel.com>
 2024-07-02 14:15:12 +02:00
Tong Wu
ba0c14e6bf avcodec: add D3D12VA hardware HEVC encoder 
This implementation is based on D3D12 Video Encoding Spec:
https://microsoft.github.io/DirectX-Specs/d3d/D3D12VideoEncoding.html

Sample command line for transcoding:
ffmpeg.exe -hwaccel d3d12va -hwaccel_output_format d3d12 -i input.mp4
-c:v hevc_d3d12va output.mp4

Signed-off-by: Tong Wu <tong1.wu@intel.com>
 2024-07-02 14:15:12 +02:00