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统frame pixelformat/size为FrameFormat，并放弃LIBYUV缩放改用ffmpeg的swscale缩放

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hyzboy
2025-03-29 16:14:11 +08:00
parent f4706aa941
commit 3e9ba60aea
8 changed files with 123 additions and 121 deletions
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25
FrameConvert.cpp
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@@ -4,16 +4,19 @@ extern "C"
#include<libavutil/imgutils.h>
}
FrameConvert::FrameConvert(SwsContext *sc,enum AVPixelFormat dst,enum AVPixelFormat src,const Size2u &src_size)
FrameConvert::FrameConvert(SwsContext *sc,const FrameFormat &src,const FrameFormat &dst)
{
ctx=sc;
dst_fmt=dst;
src_fmt=src;
src_frame_fmt=src;
dst_frame_fmt=dst;
frame_size=src_size;
av_image_alloc(dst_data,dst_linesize,frame_size.width,frame_size.height,dst,1);
av_image_alloc(dst_data,
dst_linesize,
dst_frame_fmt.size.width,
dst_frame_fmt.size.height,
dst_frame_fmt.pixel_format,
1);
}
FrameConvert::~FrameConvert()
@@ -26,18 +29,18 @@ void FrameConvert::Convert(const FrameData &src_data,const FrameLinesize &src_li
{
sws_scale( ctx,
src_data,src_linesize,
0,frame_size.height,
0,src_frame_fmt.size.height,
dst_data,dst_linesize);
}
FrameConvert *InitFrameConvert(enum AVPixelFormat dst,enum AVPixelFormat src,const Size2u &src_size)
FrameConvert *InitFrameConvert(const FrameFormat &src,const FrameFormat &dst)
{
SwsContext *sc=sws_getContext( src_size.width,src_size.height,src,
src_size.width,src_size.height,dst,
SwsContext *sc=sws_getContext( src.size.width,src.size.height,src.pixel_format,
dst.size.width,dst.size.height,dst.pixel_format,
SWS_SPLINE,
nullptr,nullptr,nullptr);
if(!sc)return(nullptr);
return(new FrameConvert(sc,dst,src,src_size));
return(new FrameConvert(sc,src,dst));
}