There are six factors that determine image quality in any compressed file:
The BIG benefit to using HEVC to compress (encode) your video is that it shrinks file sizes about 50% for the same image quality. So you can’t tell these two codecs apart using the file extension. (Sigh… QuickTime Player 7 was just SO useful!)Īlso, on a Mac, HEVC files have the same extension as H.264 files. And, no, Apple won’t be updating QuickTime Player 7. If you use QT 7 for media management you won’t be able to use HEVC. However, QuickTime Player 7 won’t open the file. However, not all applications that run in this environment will play HEVC.įor example, QuickTime Player X plays HEVC perfectly. HEVC is supported in macOS High Sierra (10.13). Compression speeds and final image quality may vary depending upon the exact technical configuration of the source file however that won’t change the process in general. NOTE: When I was looking for footage to test, I discovered that all my high-quality footage (ProRes, R3D, RAW) was shot on a tripod, while all my hand-held footage was H.264.
This is not an in-depth rigorous test, but a look at some typical compression workflows with a look at the differences between the two codecs. NOTE: Here’s an article I wrote a few months ago that describes the HEVC codec in more detail. Now that both macOS (High Sierra release) and Adobe Media Encoder (2018 update) support the new HEVC codec, I thought I’d compare compressing video using H.264 to HEVC, which is often called “H.265.”
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