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| author | Dmitrii Ovchinnikov <ovchinnikov.dmitrii@gmail.com> | 2024-10-15 11:07:54 +0200 |
|---|---|---|
| committer | Dmitrii Ovchinnikov <ovchinnikov.dmitrii@gmail.com> | 2025-02-04 00:14:14 +0100 |
| commit | 9e7242579e8e5d23dd012cd090d79030001c8d41 (patch) | |
| tree | 2ab82b12e110e0b6272886cfcf73036a75e0727c /libavutil/hwcontext.c | |
| parent | 1c5961e4b42565bb6573fe013e2db8036b4e9ae6 (diff) | |
| download | ffmpeg-9e7242579e8e5d23dd012cd090d79030001c8d41.tar.gz | |
avutil: add hwcontext_amf.
Adds hwcontext_amf, enabling a shared AMF context for encoders,
decoders, and AMF-based filters, without copy to the host memory.
Code also was tested in HandBrake.
Benefits:
- Optimizations for direct video memory access from CPU
- Significant performance boost in full AMF pipelines with filters
- Integration of GPU filters like VPP, Super Resolution, and
Compression Artefact Removal(in future plans)
- VCN power management control for decoders.
- Ability to specify which VCN instance to use for decoding
(like for encoder)
- AMD will soon introduce full AMF API for multimedia accelerator MA35D
- With AMF API, integration will be much easier:
GPU and the accelerator will have the same API
- including encoder, decoder, scaler, color converter,
Windows and Linux.
Learn more:
https://www.amd.com/en/products/accelerators/alveo/ma35d.html
Changes by versions:
v2: Header file cleanup.
v3: Removed an unnecessary class.
v4: code cleanup and improved error handling
v5: Fixes related to HandBrake integration.
v6: Sequential filters error and memory leak have been fixed.
Diffstat (limited to 'libavutil/hwcontext.c')
| -rw-r--r-- | libavutil/hwcontext.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavutil/hwcontext.c b/libavutil/hwcontext.c index fa99a0d8a4..f06d49c45c 100644 --- a/libavutil/hwcontext.c +++ b/libavutil/hwcontext.c @@ -66,6 +66,9 @@ static const HWContextType * const hw_table[] = { #if CONFIG_VULKAN &ff_hwcontext_type_vulkan, #endif +#if CONFIG_AMF + &ff_hwcontext_type_amf, +#endif NULL, }; @@ -82,6 +85,7 @@ static const char *const hw_type_names[] = { [AV_HWDEVICE_TYPE_VIDEOTOOLBOX] = "videotoolbox", [AV_HWDEVICE_TYPE_MEDIACODEC] = "mediacodec", [AV_HWDEVICE_TYPE_VULKAN] = "vulkan", + [AV_HWDEVICE_TYPE_AMF] = "amf", }; typedef struct FFHWDeviceContext { |