From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:22:09 +0200 Subject: Adding upstream version 110.0.1. Signed-off-by: Daniel Baumann --- media/ffvpx/libavcodec/thread.h | 112 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 media/ffvpx/libavcodec/thread.h (limited to 'media/ffvpx/libavcodec/thread.h') diff --git a/media/ffvpx/libavcodec/thread.h b/media/ffvpx/libavcodec/thread.h new file mode 100644 index 0000000000..d5673f25ea --- /dev/null +++ b/media/ffvpx/libavcodec/thread.h @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2008 Alexander Strange + * + * 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 + * @author Alexander Strange + */ + +#ifndef AVCODEC_THREAD_H +#define AVCODEC_THREAD_H + +#include "libavutil/buffer.h" + +#include "avcodec.h" + +/** + * Wait for decoding threads to finish and reset internal state. + * Called by avcodec_flush_buffers(). + * + * @param avctx The context. + */ +void ff_thread_flush(AVCodecContext *avctx); + +/** + * Submit a new frame to a decoding thread. + * Returns the next available frame in picture. *got_picture_ptr + * will be 0 if none is available. + * The return value on success is the size of the consumed packet for + * compatibility with FFCodec.decode. This means the decoder + * has to consume the full packet. + * + * Parameters are the same as FFCodec.decode. + */ +int ff_thread_decode_frame(AVCodecContext *avctx, AVFrame *picture, + int *got_picture_ptr, AVPacket *avpkt); + +/** + * If the codec defines update_thread_context(), call this + * when they are ready for the next thread to start decoding + * the next frame. After calling it, do not change any variables + * read by the update_thread_context() method, or call ff_thread_get_buffer(). + * + * @param avctx The context. + */ +void ff_thread_finish_setup(AVCodecContext *avctx); + +#if FF_API_THREAD_SAFE_CALLBACKS +/** + * Wrapper around get_format() for frame-multithreaded codecs. + * Call this function instead of avctx->get_format(). + * Cannot be called after the codec has called ff_thread_finish_setup(). + * + * @param avctx The current context. + * @param fmt The list of available formats. + */ +enum AVPixelFormat ff_thread_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt); +#else +#define ff_thread_get_format ff_get_format +#endif + +/** + * Wrapper around get_buffer() for frame-multithreaded codecs. + * Call this function instead of ff_get_buffer(f). + * Cannot be called after the codec has called ff_thread_finish_setup(). + * + * @param avctx The current context. + * @param f The frame to write into. + */ +int ff_thread_get_buffer(AVCodecContext *avctx, AVFrame *f, int flags); + +/** + * Wrapper around release_buffer() frame-for multithreaded codecs. + * Call this function instead of avctx->release_buffer(f). + * The AVFrame will be copied and the actual release_buffer() call + * will be performed later. The contents of data pointed to by the + * AVFrame should not be changed until ff_thread_get_buffer() is called + * on it. + * + * @param avctx The current context. + * @param f The picture being released. + */ +void ff_thread_release_buffer(AVCodecContext *avctx, AVFrame *f); + +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_slice_thread_allocz_entries(AVCodecContext *avctx, int count); +int ff_slice_thread_init_progress(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 */ -- cgit v1.2.3