mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2025-10-31 07:40:55 +00:00
168 lines
4 KiB
C
168 lines
4 KiB
C
/*
|
|
* VDA HW acceleration
|
|
*
|
|
* copyright (c) 2011 Sebastien Zwickert
|
|
*
|
|
* 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_VDA_H
|
|
#define AVCODEC_VDA_H
|
|
|
|
#include <stdint.h>
|
|
|
|
// emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes
|
|
// http://openradar.appspot.com/8026390
|
|
#undef __GNUC_STDC_INLINE__
|
|
|
|
#define Picture QuickdrawPicture
|
|
#include <VideoDecodeAcceleration/VDADecoder.h>
|
|
#undef Picture
|
|
|
|
/**
|
|
* This structure is used to store a decoded frame information and data.
|
|
*/
|
|
typedef struct {
|
|
/**
|
|
* The PTS of the frame.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by libavcodec.
|
|
*/
|
|
int64_t pts;
|
|
|
|
/**
|
|
* The CoreVideo buffer that contains the decoded data.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by libavcodec.
|
|
*/
|
|
CVPixelBufferRef cv_buffer;
|
|
|
|
/**
|
|
* A pointer to the next frame.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by libavcodec.
|
|
*/
|
|
struct vda_frame *next_frame;
|
|
|
|
} vda_frame;
|
|
|
|
/**
|
|
* This structure is used to provide the necessary configurations and data
|
|
* to the VDA FFmpeg HWAccel implementation.
|
|
*
|
|
* The application must make it available as AVCodecContext.hwaccel_context.
|
|
*/
|
|
struct vda_context {
|
|
/**
|
|
* VDA decoder object.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by libavcodec.
|
|
*/
|
|
VDADecoder decoder;
|
|
|
|
/**
|
|
* VDA frames queue ordered by presentation timestamp.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by libavcodec.
|
|
*/
|
|
vda_frame *queue;
|
|
|
|
/**
|
|
* Mutex for locking queue operations.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by libavcodec.
|
|
*/
|
|
void *queue_mutex;
|
|
|
|
/**
|
|
* The frame width.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by user.
|
|
*/
|
|
int width;
|
|
|
|
/**
|
|
* The frame height.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by user.
|
|
*/
|
|
int height;
|
|
|
|
/**
|
|
* The frame format.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by user.
|
|
*/
|
|
int format;
|
|
|
|
/**
|
|
* The pixel format for output image buffers.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by user.
|
|
*/
|
|
OSType cv_pix_fmt_type;
|
|
|
|
/**
|
|
* The current bitstream buffer.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by libavcodec.
|
|
*/
|
|
uint8_t *bitstream;
|
|
|
|
/**
|
|
* The current size of the bitstream.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by libavcodec.
|
|
*/
|
|
int bitstream_size;
|
|
|
|
/**
|
|
* The reference size used for fast reallocation.
|
|
*
|
|
* - encoding: unused
|
|
* - decoding: Set/Unset by libavcodec.
|
|
*/
|
|
int ref_size;
|
|
};
|
|
|
|
/** Creates the video decoder. */
|
|
int ff_vda_create_decoder(struct vda_context *vda_ctx,
|
|
uint8_t *extradata,
|
|
int extradata_size);
|
|
|
|
/** Destroys the video decoder. */
|
|
int ff_vda_destroy_decoder(struct vda_context *vda_ctx);
|
|
|
|
/** Returns the top frame of the queue. */
|
|
vda_frame *ff_vda_queue_pop(struct vda_context *vda_ctx);
|
|
|
|
/** Releases the given frame. */
|
|
void ff_vda_release_vda_frame(vda_frame *frame);
|
|
|
|
#endif /* AVCODEC_VDA_H */
|