public static SwsContext Get(int srcW, int srcH, AvPixelFormat srcFormat, int dstW, int dstH,
AvPixelFormat dstFormat, SwsFlags flags)
{
AutoGen.SwsContext *natObj = ffmpeg.sws_getContext(srcW, srcH, (AVPixelFormat)srcFormat, dstW, dstH,
(AVPixelFormat)dstFormat,
(int)flags, null, null, null);
return(natObj == null ? null : new SwsContext(natObj));
}
public VideoResampler(VideoFormat source, VideoFormat destination, SwsFlags flags = SwsFlags.FastBilinear)
{
Source = source;
Destination = destination;
Flags = flags;
ctx = FF.sws_getContext(
source.Width, source.Height, source.PixelFormat,
destination.Width, destination.Height, destination.PixelFormat,
flags, null, null, null);
}
public extern static SwsContext *sws_getCachedContext(SwsContext *context, int srcW, int srcH, AVPixelFormat srcFormat, int dstW, int dstH, AVPixelFormat dstFormat, SwsFlags flags, SwsFilter *srcFilter, SwsFilter *dstFilter, double *param);
public static extern SwsContext *sws_getContext(int srcW, int srcH, PixelFormat srcFormat, int dstW, int dstH, PixelFormat dstFormat,
SwsFlags flags, SwsFilter *srcFilter, SwsFilter *dstFilter, double *param);
public static extern SwsContext* sws_getContext(int srcW, int srcH, PixelFormat srcFormat, int dstW, int dstH, PixelFormat dstFormat,
SwsFlags flags, SwsFilter* srcFilter, SwsFilter* dstFilter, double* param);
public VideoResampler(VideoFormatInfo source, VideoFormatInfo target, SwsFlags flags = SwsFlags.FastBilinear)
{
Source = source ?? throw new ArgumentNullException(nameof(source));
Target = target ?? throw new ArgumentNullException(nameof(target));
Context = SwsContext.Create(source, target, flags);
}
public static SwsContext Create(VideoFormatInfo source, VideoFormatInfo target, SwsFlags flags)
{
var pointer = ffmpeg.sws_getContext(
source.Width,
source.Height,
source.PixelFormat.ToAVFormat(),
target.Width,
target.Height,
target.PixelFormat.ToAVFormat(),
flags: (int)flags,
srcFilter: null,
dstFilter: null,
param: null
);
return(new SwsContext(pointer));
}
