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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.
45 lines
1.4 KiB
C
45 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_INTERNAL_H
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#define AVUTIL_HWCONTEXT_AMF_INTERNAL_H
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#include <AMF/core/Factory.h>
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#include <AMF/core/Context.h>
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/**
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* Error handling helper
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*/
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#define AMF_RETURN_IF_FALSE(avctx, exp, ret_value, /*message,*/ ...) \
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if (!(exp)) { \
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av_log(avctx, AV_LOG_ERROR, __VA_ARGS__); \
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return ret_value; \
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}
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#define AMF_GOTO_FAIL_IF_FALSE(avctx, exp, ret_value, /*message,*/ ...) \
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if (!(exp)) { \
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av_log(avctx, AV_LOG_ERROR, __VA_ARGS__); \
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ret = ret_value; \
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goto fail; \
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}
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#define AMF_TIME_BASE_Q (AVRational){1, AMF_SECOND}
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#endif /* AVUTIL_HWCONTEXT_AMF_INTERNAL_H */
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