h264_qsv pixelformat problem #260
Description
from 3 pixelformats supported with h264_qsv,
nv12 p010le qsv
only nv12 works, and p010le qsv will result in encoder exit code 1, (on windows), with intel i7 capable of qsv
another problem that i don't know if it needs another issue topic, so i say it below
when cancelling task by abortEncoding, after encoding exception which can get catched a iostream closed by IOException will also thrown, i also get Nullpointer for ffempeg variable inside encoder too, if encoding by it self got cancelled sooner than i call my own cancel and i can't also catch that. situation is i hit convert button the encode will go in encode exit 1 because for ex i have wrong pixelformat setup in very moment a button shows a cancell if you hit that but already canceled you have unmanaged nullpointer exception, and also both IOException and nullpointer happens, still the ffmpeg app is open and working and only way to shut it down is through windows task manager