: For "better," prioritize libx265 (software encoding). As one user noted, using hevc_nvenc can result in "about 50% worse quality for the same bitrate compared to libx265".
The reaction was nuclear.
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Most modern smartphones (iPhone and Android) and computer operating systems support HEVC playback natively.
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Encoding HEVC files requires significant processing power. If you use older hardware without dedicated hardware acceleration chips, exporting HEVC video can take hours.
HEVC processes video frames using flexible structures called Coding Tree Blocks (CTBs), which can vary in size from 16x16 to 64x64 pixels. Standard encoders often make conservative, uniform decisions when splitting these blocks to save processing time.
HEVC encoders typically offer two fundamentally different rate control strategies:
Before you touch any advanced parameters, you need to make three foundational decisions that will affect everything that follows. Getting these right will set you up for success and prevent common pitfalls.
However, that speed advantage is real – hardware encoders are typically than x265 at equivalent settings, and in the case of AV1, GPU encoding can be over 68× faster than CPU encoding.
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