Advances, Systems and Applications
Table 1 Parameters in the experiment for finding the minimum count of vCPU cores in a VM, which achieves real time speed in transcoding
From: Online architecture for predicting live video transcoding resources
Parameter | Description |
|---|---|
Resolution (bit rate) | 256 × 144 (197 kilobits per second (kbps)), 426 × 240 (338 kbps), 640 × 360 (829 kbps), 854 × 480 (1380 kbps) |
Video files | 50 popular video files (length > 4 min). Resolution: 1920 × 1080, 24 Frames Per Second (FPS), Video format: MKV |
Test length | 3 h (a new transcoding task every 4 min) |
Audio encoding | AAC (128 kbps) |
Video encoder | H.264, GOP length = 24, closed-GOP |
Output format | DASH ISO Based Media File Format, segment length = 1 s |
Video transcoder | FFmpeg with real time flag (simulates live transcoding) |