You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
114 lines
4.3 KiB
114 lines
4.3 KiB
/*****************************************************************************
|
|
* va.h: Video Acceleration API for avcodec
|
|
*****************************************************************************
|
|
* Copyright (C) 2009 Laurent Aimar
|
|
*
|
|
* Authors: Laurent Aimar <fenrir_AT_ videolan _DOT_ org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 2.1 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
|
|
*****************************************************************************/
|
|
|
|
#ifndef VLC_AVCODEC_VA_H
|
|
#define VLC_AVCODEC_VA_H 1
|
|
|
|
#include "avcommon_compat.h"
|
|
#include <libavutil/pixdesc.h>
|
|
|
|
typedef struct vlc_va_t vlc_va_t;
|
|
typedef struct vlc_decoder_device vlc_decoder_device;
|
|
typedef struct vlc_video_context vlc_video_context;
|
|
|
|
struct vlc_va_operations {
|
|
int (*get)(vlc_va_t *, picture_t *pic, AVCodecContext *ctx, AVFrame *frame);
|
|
void (*close)(vlc_va_t *, AVCodecContext* ctx);
|
|
};
|
|
|
|
struct vlc_va_t {
|
|
struct vlc_object_t obj;
|
|
|
|
void *sys;
|
|
const struct vlc_va_operations *ops;
|
|
};
|
|
|
|
typedef int (*vlc_va_open)(vlc_va_t *, AVCodecContext *,
|
|
enum AVPixelFormat hwfmt, const AVPixFmtDescriptor *,
|
|
const es_format_t *, vlc_decoder_device *,
|
|
video_format_t *, vlc_video_context **);
|
|
|
|
#define set_va_callback(activate, priority) \
|
|
{ \
|
|
vlc_va_open open__ = activate; \
|
|
(void) open__; \
|
|
set_callback(activate) \
|
|
} \
|
|
set_capability( "hw decoder", priority )
|
|
|
|
/**
|
|
* Determines whether the hardware acceleration PixelFormat can be used to
|
|
* decode pixels similar to the software PixelFormat.
|
|
* @param hwfmt the hardware acceleration pixel format
|
|
* @param swfmt the software pixel format
|
|
* @return true if the hardware acceleration should be supported
|
|
*/
|
|
bool vlc_va_MightDecode(enum AVPixelFormat hwfmt, enum AVPixelFormat swfmt);
|
|
|
|
/**
|
|
* Creates an accelerated video decoding back-end for libavcodec.
|
|
* @param obj parent VLC object
|
|
* @param avctx AVContext to set the hwaccel_context on. The VA can assume fields
|
|
* codec_id, coded_width, coded_height, active_thread_type, thread_count,
|
|
* framerate, profile, refs (H264) and hw_pix_fmt are set correctly.
|
|
* @param fmt VLC format of the content to decode
|
|
* @return a new VLC object on success, NULL on error.
|
|
*/
|
|
vlc_va_t *vlc_va_New(vlc_object_t *obj, AVCodecContext * avctx,
|
|
enum AVPixelFormat hwfmt, const AVPixFmtDescriptor *,
|
|
const es_format_t *fmt, vlc_decoder_device *device,
|
|
video_format_t *, vlc_video_context **vtcx_out);
|
|
|
|
/**
|
|
* Get a hardware video surface for a libavcodec frame.
|
|
* The surface will be used as output for the hardware decoder, and possibly
|
|
* also as a reference frame to decode other surfaces.
|
|
*
|
|
* The type of the surface depends on the hardware pixel format:
|
|
* AV_PIX_FMT_D3D11VA_VLD - ID3D11VideoDecoderOutputView*
|
|
* AV_PIX_FMT_DXVA2_VLD - IDirect3DSurface9*
|
|
* AV_PIX_FMT_VDPAU - VdpVideoSurface
|
|
* AV_PIX_FMT_VAAPI - VASurfaceID
|
|
*
|
|
* @param pic pointer to VLC picture containing the surface [IN/OUT]
|
|
* @param ctx pointer to the current AVCodecContext [IN]
|
|
* @param frame pointer to the AVFrame [IN]
|
|
*
|
|
* @note This function needs not be reentrant.
|
|
*
|
|
* @return VLC_SUCCESS on success, otherwise an error code.
|
|
*/
|
|
static inline int vlc_va_Get(vlc_va_t *va, picture_t *pic, AVCodecContext *ctx,
|
|
AVFrame *frame)
|
|
{
|
|
return va->ops->get(va, pic, ctx, frame);
|
|
}
|
|
|
|
/**
|
|
* Destroys a libavcodec hardware acceleration back-end.
|
|
* All allocated surfaces shall have been released beforehand.
|
|
*
|
|
* @param avctx pointer to the current AVCodecContext if it needs to be cleaned, NULL otherwise [IN]
|
|
*/
|
|
void vlc_va_Delete(vlc_va_t *, AVCodecContext * avctx);
|
|
|
|
#endif
|
|
|