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/*
* 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 AVUTIL_SLICETHREAD_H
#define AVUTIL_SLICETHREAD_H
typedef struct AVSliceThread AVSliceThread;
/**
* Create slice threading context.
* @param pctx slice threading context returned here
* @param priv private pointer to be passed to callback function
* @param worker_func callback function to be executed
* @param main_func special callback function, called from main thread, may be NULL
* @param nb_threads number of threads, 0 for automatic, must be >= 0
* @return return number of threads or negative AVERROR on failure
*/
int avpriv_slicethread_create(AVSliceThread **pctx, void *priv,
void (*worker_func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads),
void (*main_func)(void *priv),
int nb_threads);
/**
* Execute slice threading.
* @param ctx slice threading context
* @param nb_jobs number of jobs, must be > 0
* @param execute_main also execute main_func
*/
void avpriv_slicethread_execute(AVSliceThread *ctx, int nb_jobs, int execute_main);
/**
* Destroy slice threading context.
* @param pctx pointer to context
*/
void avpriv_slicethread_free(AVSliceThread **pctx);
#endif
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