mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
ba9ef8d04e
thread_count passed to ff_thread_init() is only used to set AVCodecContext.
thread_count, and can be removed. Instead move it to the legacy implementation
of avcodec_thread_init().
This also fixes the problem that calling avcodec_thread_init() with pthreads
enabled did not set it since ff1efc524c.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
115 lines
3.9 KiB
C
115 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 2008 Alexander Strange <astrange@ithinksw.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
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* Multithreading support functions
|
|
* @author Alexander Strange <astrange@ithinksw.com>
|
|
*/
|
|
|
|
#ifndef AVCODEC_THREAD_H
|
|
#define AVCODEC_THREAD_H
|
|
|
|
#include "config.h"
|
|
#include "avcodec.h"
|
|
|
|
/**
|
|
* Waits for decoding threads to finish and resets internal
|
|
* state. Called by avcodec_flush_buffers().
|
|
*
|
|
* @param avctx The context.
|
|
*/
|
|
void ff_thread_flush(AVCodecContext *avctx);
|
|
|
|
/**
|
|
* Submits a new frame to a decoding thread.
|
|
* Returns the next available frame in picture. *got_picture_ptr
|
|
* will be 0 if none is available.
|
|
*
|
|
* Parameters are the same as avcodec_decode_video2().
|
|
*/
|
|
int ff_thread_decode_frame(AVCodecContext *avctx, AVFrame *picture,
|
|
int *got_picture_ptr, AVPacket *avpkt);
|
|
|
|
/**
|
|
* If the codec defines update_thread_context(), call this
|
|
* when they are ready for the next thread to start decoding
|
|
* the next frame. After calling it, do not change any variables
|
|
* read by the update_thread_context() method, or call ff_thread_get_buffer().
|
|
*
|
|
* @param avctx The context.
|
|
*/
|
|
void ff_thread_finish_setup(AVCodecContext *avctx);
|
|
|
|
/**
|
|
* Notifies 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(AVFrame *f, int progress, int field);
|
|
|
|
/**
|
|
* Waits 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(AVFrame *f, int progress, int field);
|
|
|
|
/**
|
|
* Wrapper around get_buffer() for frame-multithreaded codecs.
|
|
* Call this function instead of avctx->get_buffer(f).
|
|
* Cannot be called after the codec has called ff_thread_finish_setup().
|
|
*
|
|
* @param avctx The current context.
|
|
* @param f The frame to write into.
|
|
*/
|
|
int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f);
|
|
|
|
/**
|
|
* Wrapper around release_buffer() frame-for multithreaded codecs.
|
|
* Call this function instead of avctx->release_buffer(f).
|
|
* The AVFrame will be copied and the actual release_buffer() call
|
|
* will be performed later. The contents of data pointed to by the
|
|
* AVFrame should not be changed until ff_thread_get_buffer() is called
|
|
* on it.
|
|
*
|
|
* @param avctx The current context.
|
|
* @param f The picture being released.
|
|
*/
|
|
void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f);
|
|
|
|
int ff_thread_init(AVCodecContext *s);
|
|
void ff_thread_free(AVCodecContext *s);
|
|
|
|
#endif /* AVCODEC_THREAD_H */
|