Skip to content

Instantly share code, notes, and snippets.

@while0pass
while0pass / dash-avc264 command lines
Created June 14, 2019 09:47 — forked from ddennedy/dash-avc264 command lines
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.
@while0pass
while0pass / common.h
Created February 23, 2021 08:15 — forked from TatsuyaOGth/common.h
Detect reliably Mac OS X, iOS, Linux, Windows in C preprocessor
#ifdef _WIN64
//define something for Windows (64-bit)
#elif _WIN32
//define something for Windows (32-bit)
#elif __APPLE__
#include "TargetConditionals.h"
#if TARGET_OS_IPHONE && TARGET_IPHONE_SIMULATOR
// define something for simulator
#elif TARGET_OS_IPHONE
// define something for iphone