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Alexey Plotnik odiszapc

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@ddennedy
ddennedy / dash-avc264 command lines
Last active July 27, 2022 03:44
Use ffmpeg and mp4box to prepare DASH-AVC/264 v1.0 VoD
See my DASH-IF presentation from October, 2014:
https://s3.amazonaws.com/misc.meltymedia/dash-if-reveal/index.html#/
1. encode multiple bitrates with keyframe alignment:
ffmpeg -i ~/Movies/5D2_Portrait.MOV -s 1280x720 -c:v libx264 -b:v 1450k -bf 2 \
-g 90 -sc_threshold 0 -c:a aac -strict experimental -b:a 96k -ar 32000 out.mp4
My input was 30 fps = 3000 ms. If it were 29.97, then a GOP size of 90 frames will yield a base segment
size of 3003 milliseconds. You can make the segment size some multiple of this, e.g.: 6006, 9009, 12012.
@solveme
solveme / cpu_consumers.sh
Last active September 5, 2022 09:09
Print most CPU consuming threads in descending order for selected Java process (./cpu_consumers.sh | tee consumers.txt)
#!/bin/bash
function print_lwp_line() {
local pid="${1}"
local lwp="${2}"
local nlwp="${3}"
local ruser="${4}"
local pcpu="${5}"
local cputimes="${6}"