혹시 원인이 뭔지 알 수 있을까요?

그리고 hevc(nvenc) 퀄리티로 하면 정상적으로 인코딩이 됩니다...

 

Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
  Stream #0:1 -> #0:1 (copy)
[libx265 @ 000002dca5ba00c0] Unknown option: b-pyramid:bframe-bias.
x265 [info]: HEVC encoder version 3.5+20-17839cc0d
x265 [info]: build info [Windows][GCC 5.4.0][64 bit] 10bit
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
x265 [warning]: QGSize should be less than or equal to maxCUSize, setting QGSize = 16
x265 [warning]: level 5.1 detected, but CTU size 16 is non-compliant
x265 [info]: NONE profile, Level-NONE (Main tier)
x265 [info]: non-conformant bitstreams not allowed (--allow-non-conformance)
[libx265 @ 000002dca5ba00c0] Cannot open libx265 encoder.
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!

 * 인코딩 오류가 발생했습니다.

 >> 속도 0x 진행 시간 00:00:00

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