… for Codecs & Media
Tip #1210: Tips for Faster Video Compression
These settings can disable hardware acceleration, without benefitting the image.
Last week, I wrote about the hardware acceleration provided by both the T-2 and M-1 chips in Apple computers Tip #1190. As well, most current Intel CPUs also support hardware acceleration of 8-bit H.264 and HEVC media.
However, it is possible to accidentally turn OFF hardware acceleration by changing one setting in either Apple Compressor or Adobe Media Encoder.
NOTE: I can’t think of a single good reason to do this, so, um, don’t do it.
SETTING 1 – COMPRESSOR
Hardware acceleration is always single pass. Enabling multi-pass turns off hardware acceleration. (The top screen shot illustrates this setting in Apple Compressor.)
SETTING 2 – ADOBE MEDIA ENCODER
AME has two Bit Rate settings that can turn off hardware acceleration: CBR and VBR 2-pass. For fastest compression be sure to always select VBR 1-pass.
In the past, we used 2-pass software compression because it looked better. Based on my observations, using today’s CPUs, hardware-accelerated compression looks as good as, or better than, media compressed using software.
And, it finished a WHOLE LOT faster, as well.
In Apple Compressor, for digital images, you can also turn off Clean Aperture. Tip #1211 explains why.