ffmpeg -y -i file.m3u8 -sws_flags spline -sn -vf yadif=0:0,crop=1276:716:2:2 -s 1280x720 -c:v libx264 -preset slow -profile:v high -level 4.1 -crf 23 -r 29.970 -x264opts colormatrix=bt709 -acodec copy webripoutput.mkv

 and

ffmpeg -y -i file.m3u8 -sws_flags spline -sn -vf crop=1276:716:2:2 -s 1280x720 -c:v libx264 -preset slow -profile:v high -level 4.1 -crf 23 -r 29.970 -x264opts colormatrix=bt709 -acodec copy webripoutput.mkv