Libav
thread.h
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1 /*
2  * Copyright (c) 2008 Alexander Strange <astrange@ithinksw.com>
3  *
4  * This file is part of Libav.
5  *
6  * Libav is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * Libav is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with Libav; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
27 #ifndef AVCODEC_THREAD_H
28 #define AVCODEC_THREAD_H
29 
30 #include "libavutil/buffer.h"
31 
32 #include "config.h"
33 #include "avcodec.h"
34 
35 typedef struct ThreadFrame {
38  // progress->data is an array of 2 ints holding progress for top/bottom
39  // fields
41 } ThreadFrame;
42 
49 void ff_thread_flush(AVCodecContext *avctx);
50 
61 int ff_thread_decode_frame(AVCodecContext *avctx, AVFrame *picture,
62  int *got_picture_ptr, AVPacket *avpkt);
63 
73 
84 void ff_thread_report_progress(ThreadFrame *f, int progress, int field);
85 
98 void ff_thread_await_progress(ThreadFrame *f, int progress, int field);
99 
109 
122 
124 
127 
128 #endif /* AVCODEC_THREAD_H */
This structure describes decoded (raw) audio or video data.
Definition: frame.h:135
void ff_thread_flush(AVCodecContext *avctx)
Wait for decoding threads to finish and reset internal state.
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
AVFrame * f
Definition: thread.h:36
void ff_thread_report_progress(ThreadFrame *f, int progress, int field)
Notify later decoding threads when part of their reference picture is ready.
void ff_thread_free(AVCodecContext *s)
Definition: pthread.c:82
static int flags
Definition: log.c:44
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
Definition: utils.c:2349
AVCodecContext * owner
Definition: thread.h:37
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
void ff_thread_finish_setup(AVCodecContext *avctx)
If the codec defines update_thread_context(), call this when they are ready for the next thread to st...
void ff_thread_await_progress(ThreadFrame *f, int progress, int field)
Wait for earlier decoding threads to finish reference pictures.
int ff_thread_init(AVCodecContext *s)
Definition: pthread.c:70
AVBufferRef * progress
Definition: thread.h:40
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:1050
refcounted data buffer API
A reference to a data buffer.
Definition: buffer.h:81
int ff_thread_decode_frame(AVCodecContext *avctx, AVFrame *picture, int *got_picture_ptr, AVPacket *avpkt)
Submit a new frame to a decoding thread.
This structure stores compressed data.
Definition: avcodec.h:950