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Copy pathVideoCodec.cpp
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44 lines (36 loc) · 1.19 KB
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#include "VideoCodec.hpp"
#include <cmath>
#include <cassert>
namespace avtranscoder
{
VideoCodec::VideoCodec( const ECodecType type, const std::string& codecName )
: ICodec( type, codecName )
{
}
VideoCodec::VideoCodec( const ECodecType type, const AVCodecID codecId )
: ICodec( type, codecId )
{
}
VideoCodec::VideoCodec( const ECodecType type, AVCodecContext& avCodecContext )
: ICodec( type, avCodecContext )
{
}
VideoFrameDesc VideoCodec::getVideoFrameDesc() const
{
assert( _avCodecContext != NULL );
VideoFrameDesc videoFrameDesc( _avCodecContext->width, _avCodecContext->height, _avCodecContext->pix_fmt );
double fps = 1.0 * _avCodecContext->time_base.den / ( _avCodecContext->time_base.num * _avCodecContext->ticks_per_frame );
if( ! std::isinf( fps ) )
videoFrameDesc.setFps( fps );
return videoFrameDesc;
}
void VideoCodec::setImageParameters( const VideoFrameDesc& videoFrameDesc )
{
_avCodecContext->width = videoFrameDesc.getWidth();
_avCodecContext->height = videoFrameDesc.getHeight();
_avCodecContext->pix_fmt = videoFrameDesc.getPixelFormat();
_avCodecContext->time_base.num = 1;
_avCodecContext->time_base.den = videoFrameDesc.getFps();
_avCodecContext->ticks_per_frame = 1;
}
}