/*
* Copyright ( c ) 2022 Andreas Rheinhardt < andreas . rheinhardt @ outlook . com >
*
* 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_THREADFRAME_H
#define AVCODEC_THREADFRAME_H
#include "libavutil/frame.h"
#include "avcodec.h"
typedef struct ThreadFrame {
AVFrame *f;
AVCodecContext *owner[2 ];
struct ThreadFrameProgress *progress;
} ThreadFrame;
/**
* Notify later decoding threads when part of their reference picture is ready .
* Call this when some part of the picture is finished decoding .
* Later calls with lower values of progress have no effect .
*
* @ param f The picture being decoded .
* @ param progress Value , in arbitrary units , of how much of the picture has decoded .
* @ param field The field being decoded , for field - picture codecs .
* 0 for top field or frame pictures , 1 for bottom field .
*/
void ff_thread_report_progress(ThreadFrame *f, int progress, int field);
/**
* Wait for earlier decoding threads to finish reference pictures .
* Call this before accessing some part of a picture , with a given
* value for progress , and it will return after the responsible decoding
* thread calls ff_thread_report_progress ( ) with the same or
* higher value for progress .
*
* @ param f The picture being referenced .
* @ param progress Value , in arbitrary units , to wait for .
* @ param field The field being referenced , for field - picture codecs .
* 0 for top field or frame pictures , 1 for bottom field .
*/
void ff_thread_await_progress(const ThreadFrame *f, int progress, int field);
/**
* Wrapper around ff_get_buffer ( ) for frame - multithreaded codecs .
* Call this function instead of ff_get_buffer ( ) if you might need
* to wait for progress on this frame .
* Cannot be called after the codec has called ff_thread_finish_setup ( ) .
*
* @ param avctx The current context .
* @ param f The frame to write into .
* @ note : It is fine to call this with codecs that do not support
* frame threading .
*/
int ff_thread_get_ext_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags);
/**
* Unref a ThreadFrame .
*
* This is basically a wrapper around av_frame_unref ( ) and should
* be called instead of it .
*
* @ param avctx The current context .
* @ param f The picture being released .
*/
void ff_thread_release_ext_buffer(ThreadFrame *f);
int ff_thread_ref_frame(ThreadFrame *dst, const ThreadFrame *src);
int ff_thread_replace_frame(ThreadFrame *dst, const ThreadFrame *src);
#endif
Messung V0.5 in Prozent C=95 H=100 G=97
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-08-24)
¤
*© Formatika GbR, Deutschland