mirror of
https://github.com/FFmpeg/FFmpeg.git
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9e7242579e
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.
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_HWCONTEXT_AMF_H
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#define AVUTIL_HWCONTEXT_AMF_H
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#include "pixfmt.h"
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#include "hwcontext.h"
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#include <AMF/core/Factory.h>
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#include <AMF/core/Context.h>
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#include <AMF/core/Trace.h>
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#include <AMF/core/Debug.h>
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/**
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* This struct is allocated as AVHWDeviceContext.hwctx
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*/
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typedef struct AVAMFDeviceContext {
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void * library;
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AMFFactory *factory;
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void *trace_writer;
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int64_t version; ///< version of AMF runtime
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AMFContext *context;
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} AVAMFDeviceContext;
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enum AMF_SURFACE_FORMAT av_av_to_amf_format(enum AVPixelFormat fmt);
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enum AVPixelFormat av_amf_to_av_format(enum AMF_SURFACE_FORMAT fmt);
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#endif /* AVUTIL_HWCONTEXT_AMF_H */
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