Charlie Monroe Software released Permute 3, a video conversion application for Mac that supports the hardware encoding "HEVC" (H.265) with the Apple T2 chip.
[Andere Bilder]
Using MacBook Pro (13-inch, 2018, four-Thunderbolt 3-ports) / 4-Core Intel Core i7 / 2.7GHz / 8-GB / 1-TBSSD / Intel Iris Plus Graphics 655, MP4 – I've tried to export the 10-minute movie (480 MB) of AVC 1920 x 1080 / 29.97 p to HEVC (H.265) medium quality.
First, I tried the normal software encoding processing.
Coding time: 424 seconds, file size: 161.1 MB.
It takes time, but seems to code carefully and lower the bitrate.
When the HEVC (H.265) "Use Hardware Acceleration" option is enabled in the Permute 3 environment setting, it becomes HEVC (H.265) hardware encoding processing using the T2 chip.
Encoding time: 1
23 seconds, file size: 457.3 MB.
You can see that the CPU load has dropped and the GPU is not being used.
Since the file size is not too small, only the format conversion seems to be performed.
I tried to export HEVC (H.265) with QuickTime.
Encoding time: 125 seconds, file size: 637.6 MB.
Iris Plus Graphics 655 supports H.265 / HEVC 10/10-bit QSV 6, which is approximately the same as T2, but the file size is larger than the original file.
This time, the same MP4-AVC 1920×1080 / 29.97 (1979002) will be used, featuring the 3.0GHz / 64Gb / 2TBSSD / Radeon Pro Vega 64 iMac Pro (2017) / 10 Core Xeon W. (16 GB). I tried to export HEVC (H.265) medium quality with permute 3 for 10 minutes of film (480 MB) of p.
In the case of CPU encoding, the encoding time is 197 seconds and the file size is 167.8 MB.
The HEVC option (H.265) in the Permute 3 Use Hardware Acceleration setting has been enabled and encoding processing has been performed.
Encoding time: 120 seconds, file size: 457.3 MB.
VideoToolbox Framework seems to work in the hardware environment of the Mac and uses Radeon Pro Vega 64 as well as T2.
I tried to export HEVC (H.265) with QuickTime.
Encoding time: 120 seconds, file size: 637.6 MB.
Radeon Pro Vega 64 supports 4K60 (decode and merge) or 1080P240, is slightly faster than Iris Plus Graphics 655, has the same processing speed as T2, but the file size is larger than the original file made.
It is expected that applications for HD video such as Super Hi-Vision (8K, 4320p) will be used for video distribution for mobile devices, and HEVC which will have approximately twice the compression performance of H.264 / AVC ( H.265) "However, when one is aware of the distribution of video, it turns out that the file size becomes smaller through software coding by CPU processing.
