FFmpeg
slicethread.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVUTIL_SLICETHREAD_H
20 #define AVUTIL_SLICETHREAD_H
21 
23 
24 /**
25  * Create slice threading context.
26  * @param pctx slice threading context returned here
27  * @param priv private pointer to be passed to callback function
28  * @param worker_func callback function to be executed
29  * @param main_func special callback function, called from main thread, may be NULL
30  * @param nb_threads number of threads, 0 for automatic, must be >= 0
31  * @return return number of threads or negative AVERROR on failure
32  */
33 int avpriv_slicethread_create(AVSliceThread **pctx, void *priv,
34  void (*worker_func)(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads),
35  void (*main_func)(void *priv),
36  int nb_threads);
37 
38 /**
39  * Execute slice threading.
40  * @param ctx slice threading context
41  * @param nb_jobs number of jobs, must be > 0
42  * @param execute_main also execute main_func
43  */
44 void avpriv_slicethread_execute(AVSliceThread *ctx, int nb_jobs, int execute_main);
45 
46 /**
47  * Destroy slice threading context.
48  * @param pctx pointer to context
49  */
51 
52 #endif
static void worker_func(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads)
Definition: pthread_slice.c:65
struct AVSliceThread AVSliceThread
Definition: slicethread.h:22
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)
Create slice threading context.
Definition: slicethread.c:236
void avpriv_slicethread_execute(AVSliceThread *ctx, int nb_jobs, int execute_main)
Execute slice threading.
Definition: slicethread.c:245
AVFormatContext * ctx
Definition: movenc.c:48
int( main_func)(AVCodecContext *c)
Definition: pthread_slice.c:41
void avpriv_slicethread_free(AVSliceThread **pctx)
Destroy slice threading context.
Definition: slicethread.c:250