thread.h

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/*
 * Copyright (c) 2008 Alexander Strange <astrange@ithinksw.com>
 *
 * 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 AVCODEC_THREAD_H
#define AVCODEC_THREAD_H

#include "libavutil/buffer.h"

#include "avcodec.h"

typedef struct ThreadFrame {
    AVFrame *f;
    AVCodecContext *owner[2];
    // progress->data is an array of 2 ints holding progress for top/bottom
    // fields
    AVBufferRef *progress;
} ThreadFrame;

void ff_thread_flush(AVCodecContext *avctx);

int ff_thread_decode_frame(AVCodecContext *avctx, AVFrame *picture,
                           int *got_picture_ptr, AVPacket *avpkt);

void ff_thread_finish_setup(AVCodecContext *avctx);

void ff_thread_report_progress(ThreadFrame *f, int progress, int field);

void ff_thread_await_progress(ThreadFrame *f, int progress, int field);

enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt);

int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags);

void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f);

int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src);

int ff_thread_init(AVCodecContext *s);
int ff_slice_thread_execute_with_mainfunc(AVCodecContext *avctx,
        int (*action_func2)(AVCodecContext *c, void *arg, int jobnr, int threadnr),
        int (*main_func)(AVCodecContext *c), void *arg, int *ret, int job_count);
void ff_thread_free(AVCodecContext *s);
int ff_alloc_entries(AVCodecContext *avctx, int count);
void ff_reset_entries(AVCodecContext *avctx);
void ff_thread_report_progress2(AVCodecContext *avctx, int field, int thread, int n);
void ff_thread_await_progress2(AVCodecContext *avctx,  int field, int thread, int shift);

#endif /* AVCODEC_THREAD_H */