On 1/27/16, Andy Furniss <adf.li...@gmail.com> wrote: > Carl Eugen Hoyos wrote: >> Andy Furniss <adf.lists <at> gmail.com> writes: >> >>> mplayer -ss 11.2 -frames 3 -demuxer lavf -noaspect >>> -vf ilpack,scale -vo png ~/snooker-short.ts >> >> First convert the input file losslessly to something >> I-frame only (like ffv1), then testing will get (much) >> easier. > > Yea was in progress, finished now (used y4m). > > So this is the test frame snk-420i.y4m > > https://drive.google.com/file/d/0BxP5-S1t9VEENjJpRk5vV0FjSFU/view?usp=sharing > > This is what results look like - > > https://drive.google.com/file/d/0BxP5-S1t9VEEaEVUTzJQc1dseWc/view?usp=sharing >
Isnt your input already 422? I guess you could use ffmpeg and scale filter to convert from yuv420 to yuv422p with interl=1 and than use zscale to convert yuv422p to gbrp and than again scale to convert from gbrp to rgb24 for png: ffmpeg -i input -vf scale=interl=1,format=yuv422p,zscale=range=limiter:min=709,format=gbrp out.png _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user