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/*
* Copyright (c) 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* 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 libavcodec/options.c
* Options definition for AVCodecContext.
*/
#include "avcodec.h"
static const char* context_to_name(void* ptr) {
AVCodecContext *avc= ptr;
if(avc && avc->codec && avc->codec->name)
return avc->codec->name;
else
return "NULL";
}
static AVClass av_codec_context_class = { "AVCodecContext", context_to_name };
void avcodec_get_context_defaults(AVCodecContext *s){
memset(s, 0, sizeof(AVCodecContext));
s->av_class= &av_codec_context_class;
s->time_base.num=0; s->time_base.den=1;
s->get_buffer= avcodec_default_get_buffer;
s->release_buffer= avcodec_default_release_buffer;
s->get_format= avcodec_default_get_format;
s->execute= avcodec_default_execute;
s->execute2= avcodec_default_execute2;
s->sample_aspect_ratio.num=0; s->sample_aspect_ratio.den=1;
s->pix_fmt= PIX_FMT_NONE;
s->sample_fmt= SAMPLE_FMT_S16; // FIXME: set to NONE
s->palctrl = NULL;
s->reget_buffer= avcodec_default_reget_buffer;
s->reordered_opaque= AV_NOPTS_VALUE;
s->bit_rate= 800*1000;
s->bit_rate_tolerance= s->bit_rate*10;
s->qmin= 2;
s->qmax= 31;
s->mb_lmin= FF_QP2LAMBDA * 2;
s->mb_lmax= FF_QP2LAMBDA * 31;
s->cqp = -1;
s->refs = 1;
s->directpred = 2;
s->qcompress= 0.5;
s->complexityblur = 20.0;
s->keyint_min = 25;
s->flags2 = CODEC_FLAG2_FASTPSKIP;
s->max_qdiff= 3;
s->b_quant_factor=1.25;
s->b_quant_offset=1.25;
s->i_quant_factor=-0.8;
s->i_quant_offset=0.0;
s->error_concealment= 3;
s->error_recognition= 1;
s->workaround_bugs= FF_BUG_AUTODETECT;
s->gop_size= 50;
s->me_method= ME_EPZS;
s->thread_count=1;
s->me_subpel_quality=8;
s->lmin= FF_QP2LAMBDA * s->qmin;
s->lmax= FF_QP2LAMBDA * s->qmax;
s->ildct_cmp= FF_CMP_VSAD;
s->profile= FF_PROFILE_UNKNOWN;
s->level= FF_LEVEL_UNKNOWN;
s->me_penalty_compensation= 256;
s->frame_skip_cmp= FF_CMP_DCTMAX;
s->nsse_weight= 8;
s->mv0_threshold= 256;
s->b_sensitivity= 40;
s->compression_level = FF_COMPRESSION_DEFAULT;
s->use_lpc = -1;
s->min_prediction_order = -1;
s->max_prediction_order = -1;
s->prediction_order_method = -1;
s->min_partition_order = -1;
s->max_partition_order = -1;
s->intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
s->inter_quant_bias= FF_DEFAULT_QUANT_BIAS;
s->rc_max_available_vbv_use = 1.0/3;
s->rc_min_vbv_overflow_use = 3;
s->bidir_refine = 1;
}
AVCodecContext *avcodec_alloc_context(void){
AVCodecContext *avctx= av_malloc(sizeof(AVCodecContext));
if(avctx==NULL) return NULL;
avcodec_get_context_defaults(avctx);
return avctx;
}
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