107 lines
3.7 KiB
C
Executable file
107 lines
3.7 KiB
C
Executable file
/*
|
|
* Intel MediaSDK QSV public API
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg 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.
|
|
*
|
|
* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_QSV_H
|
|
#define AVCODEC_QSV_H
|
|
|
|
#include <mfx/mfxvideo.h>
|
|
|
|
#include "libavutil/buffer.h"
|
|
|
|
/**
|
|
* This struct is used for communicating QSV parameters between libavcodec and
|
|
* the caller. It is managed by the caller and must be assigned to
|
|
* AVCodecContext.hwaccel_context.
|
|
* - decoding: hwaccel_context must be set on return from the get_format()
|
|
* callback
|
|
* - encoding: hwaccel_context must be set before avcodec_open2()
|
|
*/
|
|
typedef struct AVQSVContext {
|
|
/**
|
|
* If non-NULL, the session to use for encoding or decoding.
|
|
* Otherwise, libavcodec will try to create an internal session.
|
|
*/
|
|
mfxSession session;
|
|
|
|
/**
|
|
* The IO pattern to use.
|
|
*/
|
|
int iopattern;
|
|
|
|
/**
|
|
* Extra buffers to pass to encoder or decoder initialization.
|
|
*/
|
|
mfxExtBuffer **ext_buffers;
|
|
int nb_ext_buffers;
|
|
|
|
/**
|
|
* Encoding only. If this field is set to non-zero by the caller, libavcodec
|
|
* will create an mfxExtOpaqueSurfaceAlloc extended buffer and pass it to
|
|
* the encoder initialization. This only makes sense if iopattern is also
|
|
* set to MFX_IOPATTERN_IN_OPAQUE_MEMORY.
|
|
*
|
|
* The number of allocated opaque surfaces will be the sum of the number
|
|
* required by the encoder and the user-provided value nb_opaque_surfaces.
|
|
* The array of the opaque surfaces will be exported to the caller through
|
|
* the opaque_surfaces field.
|
|
*/
|
|
int opaque_alloc;
|
|
|
|
/**
|
|
* Encoding only, and only if opaque_alloc is set to non-zero. Before
|
|
* calling avcodec_open2(), the caller should set this field to the number
|
|
* of extra opaque surfaces to allocate beyond what is required by the
|
|
* encoder.
|
|
*
|
|
* On return from avcodec_open2(), this field will be set by libavcodec to
|
|
* the total number of allocated opaque surfaces.
|
|
*/
|
|
int nb_opaque_surfaces;
|
|
|
|
/**
|
|
* Encoding only, and only if opaque_alloc is set to non-zero. On return
|
|
* from avcodec_open2(), this field will be used by libavcodec to export the
|
|
* array of the allocated opaque surfaces to the caller, so they can be
|
|
* passed to other parts of the pipeline.
|
|
*
|
|
* The buffer reference exported here is owned and managed by libavcodec,
|
|
* the callers should make their own reference with av_buffer_ref() and free
|
|
* it with av_buffer_unref() when it is no longer needed.
|
|
*
|
|
* The buffer data is an nb_opaque_surfaces-sized array of mfxFrameSurface1.
|
|
*/
|
|
AVBufferRef *opaque_surfaces;
|
|
|
|
/**
|
|
* Encoding only, and only if opaque_alloc is set to non-zero. On return
|
|
* from avcodec_open2(), this field will be set to the surface type used in
|
|
* the opaque allocation request.
|
|
*/
|
|
int opaque_alloc_type;
|
|
} AVQSVContext;
|
|
|
|
/**
|
|
* Allocate a new context.
|
|
*
|
|
* It must be freed by the caller with av_free().
|
|
*/
|
|
AVQSVContext *av_qsv_alloc_context(void);
|
|
|
|
#endif /* AVCODEC_QSV_H */
|