chromium/third_party/ffmpeg/libavcodec/pthread.c

/*
 * Copyright (c) 2004 Roman Shaposhnik
 * Copyright (c) 2008 Alexander Strange ([email protected])
 *
 * Many thanks to Steven M. Schultz for providing clever ideas and
 * to Michael Niedermayer <[email protected]> for writing initial
 * implementation.
 *
 * 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
 * @see doc/multithreading.txt
 */

#include "libavutil/thread.h"

#include "avcodec.h"
#include "codec_internal.h"
#include "pthread_internal.h"
#include "thread.h"

/**
 * Set the threading algorithms used.
 *
 * Threading requires more than one thread.
 * Frame threading requires entire frames to be passed to the codec,
 * and introduces extra decoding delay, so is incompatible with low_delay.
 *
 * @param avctx The context.
 */
static void validate_thread_parameters(AVCodecContext *avctx)
{ … }

int ff_thread_init(AVCodecContext *avctx)
{ … }

void ff_thread_free(AVCodecContext *avctx)
{ … }

av_cold void ff_pthread_free(void *obj, const unsigned offsets[])
{ … }

av_cold int ff_pthread_init(void *obj, const unsigned offsets[])
{ … }