FFmpeg
libavutil
slicethread.h
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_SLICETHREAD_H
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#define AVUTIL_SLICETHREAD_H
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typedef
struct
AVSliceThread
AVSliceThread
;
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/**
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* Create slice threading context.
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* @param pctx slice threading context returned here
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* @param priv private pointer to be passed to callback function
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* @param worker_func callback function to be executed
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* @param main_func special callback function, called from main thread, may be NULL
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* @param nb_threads number of threads, 0 for automatic, must be >= 0
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* @return return number of threads or negative AVERROR on failure
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*/
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int
avpriv_slicethread_create
(
AVSliceThread
**pctx,
void
*priv,
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void
(*
worker_func
)(
void
*priv,
int
jobnr,
int
threadnr,
int
nb_jobs,
int
nb_threads),
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void
(*
main_func
)(
void
*priv),
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int
nb_threads);
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/**
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* Execute slice threading.
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* @param ctx slice threading context
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* @param nb_jobs number of jobs, must be > 0
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* @param execute_main also execute main_func
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*/
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void
avpriv_slicethread_execute
(
AVSliceThread
*
ctx
,
int
nb_jobs,
int
execute_main);
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/**
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* Destroy slice threading context.
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* @param pctx pointer to context
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*/
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void
avpriv_slicethread_free
(
AVSliceThread
**pctx);
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#endif
AVSliceThread
struct AVSliceThread AVSliceThread
Definition:
slicethread.h:22
avpriv_slicethread_free
void avpriv_slicethread_free(AVSliceThread **pctx)
Destroy slice threading context.
Definition:
slicethread.c:276
ctx
AVFormatContext * ctx
Definition:
movenc.c:49
worker_func
static void worker_func(void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads)
Definition:
pthread_slice.c:60
main_func
int() main_func(AVCodecContext *c)
Definition:
pthread_slice.c:42
avpriv_slicethread_execute
void avpriv_slicethread_execute(AVSliceThread *ctx, int nb_jobs, int execute_main)
Execute slice threading.
Definition:
slicethread.c:271
avpriv_slicethread_create
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:262
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