/*
  * 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