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111 lines
3.7 KiB
111 lines
3.7 KiB
/*****************************************************************************
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* va_surface.h: libavcodec Generic Video Acceleration helpers
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*****************************************************************************
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* Copyright (C) 2009 Geoffroy Couprie
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* Copyright (C) 2009 Laurent Aimar
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* Copyright (C) 2015 Steve Lhomme
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*
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* Authors: Geoffroy Couprie <geal@videolan.org>
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* Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
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* Steve Lhomme <robux4@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU 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 License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef AVCODEC_VA_SURFACE_INTERNAL_H
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#define AVCODEC_VA_SURFACE_INTERNAL_H
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#include <libavcodec/avcodec.h>
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#include "va.h"
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/* */
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typedef struct vlc_va_surface_t vlc_va_surface_t;
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typedef struct va_pool_t va_pool_t;
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#define MAX_SURFACE_COUNT (64)
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struct va_pool_cfg {
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int (*pf_create_device)(vlc_va_t *);
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/**
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* Destroy resources allocated with the surfaces and the associated decoder
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*/
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void (*pf_destroy_device)(void *opaque);
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/**
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* Create the DirectX surfaces in hw_surface and the decoder in decoder
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*/
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int (*pf_create_decoder_surfaces)(vlc_va_t *, int codec_id,
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const video_format_t *fmt,
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size_t surface_count);
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/**
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* Set the avcodec hw context after the decoder is created
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*/
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void (*pf_setup_avcodec_ctx)(void *opaque, AVCodecContext *avctx);
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void *opaque;
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};
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/**
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* Create a VA pool for the given va module.
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*
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* The pf_create_device callback of the pool configuration is called. If it
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* fails, the pool is not created.
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*/
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va_pool_t * va_pool_Create(vlc_va_t *, const struct va_pool_cfg *);
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/**
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* Close the VA pool.
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*
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* If there is no in-flight surfaces left, the pf_destroy_device callback of the
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* pool configuration is called and the pool is released.
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* If threre are in-flight pictures the last surface that calls va_surface_Release
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* will trigger the same behaviour to fully release the pool.
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*/
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void va_pool_Close(va_pool_t *);
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/**
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* Setup the VA pool to allocate the amount of surfaces for the given format.
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*
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* The pf_create_decoder_surfaces callback of the pool configuration is called.
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* If it succeeds, the pf_setup_avcodec_ctx callback will be called afterwards.
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*/
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int va_pool_SetupDecoder(vlc_va_t *, va_pool_t *, AVCodecContext *, const video_format_t *, size_t count);
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/**
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* Get a reference to an available surface or NULL on timeout
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*/
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vlc_va_surface_t *va_pool_Get(va_pool_t *);
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/**
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* Get the index of the va_surface in the pool.
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*/
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size_t va_surface_GetIndex(const vlc_va_surface_t *surface);
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/**
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* Add a reference to the surface.
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*/
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void va_surface_AddRef(vlc_va_surface_t *surface);
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/**
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* Remove a reference to the surface.
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*
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* If the pool has been closed and it was the last reference used from the pool,
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* the pool we be released.
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*
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* \see va_pool_Close()
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*/
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void va_surface_Release(vlc_va_surface_t *surface);
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#endif /* AVCODEC_VA_SURFACE_INTERNAL_H */
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