2015-05-13 17:05:12.473 [   INFO] transcode: 0004: 1:H264 1440x1080 ==> H264 960x720 (nvenc)
2015-05-13 17:05:12.473 [   INFO] transcode: 0004: 2:AC3 ==> AAC (aac)
2015-05-13 17:05:12.554 [  ERROR] libav: mmco: unref short failure
2015-05-13 17:05:12.554 [  ERROR] libav: mmco: unref short failure
2015-05-13 17:05:12.554 [  ERROR] libav: number of reference frames (0+4) exceeds max (3; probably corrupt input), discarding one
2015-05-13 17:05:12.575 [   INFO] libav: Increasing reorder buffer to 1
2015-05-13 17:05:12.635 [   INFO] libav: Increasing reorder buffer to 2
2015-05-13 17:05:12.675 [  ERROR] libav: Specified pixel format yuv420p is invalid or not supported
2015-05-13 17:05:12.675 [  ERROR] transcode: 0004: Unable to open nvenc encoder