mirror of
https://github.com/hrydgard/ppsspp.git
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129 lines
2.7 KiB
C++
129 lines
2.7 KiB
C++
/*
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* Copyright (c) 2001 Fabrice Bellard
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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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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/**
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* @file
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* Options definition for AVCodecContext.
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*/
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#include "avcodec.h"
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#include "compat.h"
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#include "mem.h"
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <limits.h>
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#include <float.h>
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AVCodecContext *avcodec_alloc_context3(const AVCodec *codec)
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{
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AVCodecContext *avctx = (AVCodecContext *)av_mallocz(sizeof(AVCodecContext));
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if (!avctx)
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return NULL;
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int flags = 0;
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memset(avctx, 0, sizeof(AVCodecContext));
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if (codec) {
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avctx->codec = codec;
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}
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if (codec && codec->priv_data_size) {
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if (!avctx->priv_data) {
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avctx->priv_data = av_mallocz(codec->priv_data_size);
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if (!avctx->priv_data) {
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return NULL;
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}
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}
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}
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return avctx;
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}
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void avcodec_free_context(AVCodecContext **pavctx)
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{
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AVCodecContext *avctx = *pavctx;
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if (!avctx)
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return;
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avcodec_close(avctx);
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av_freep(&avctx->extradata);
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av_freep(pavctx);
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}
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int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, void *options)
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{
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int ret = 0;
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if (codec->priv_data_size > 0) {
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if (!avctx->priv_data) {
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avctx->priv_data = av_mallocz(codec->priv_data_size);
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if (!avctx->priv_data) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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}
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} else {
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avctx->priv_data = NULL;
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}
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avctx->codec = codec;
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if (avctx->codec->init) {
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ret = avctx->codec->init(avctx);
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if (ret < 0) {
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goto free_and_end;
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}
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}
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ret = 0;
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end:
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return ret;
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free_and_end:
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if (avctx->codec)
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avctx->codec->close(avctx);
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av_freep(&avctx->priv_data);
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avctx->codec = NULL;
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goto end;
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}
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int avcodec_close(AVCodecContext *avctx)
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{
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int i;
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if (!avctx)
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return 0;
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if (avctx->codec && avctx->codec->close)
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avctx->codec->close(avctx);
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av_freep(&avctx->priv_data);
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avctx->codec = NULL;
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return 0;
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}
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void avcodec_flush_buffers(AVCodecContext *avctx)
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{
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if (avctx->codec->flush)
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avctx->codec->flush(avctx);
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}
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