kevinGodell / generate_sample_videos.sh

Last active November 19, 2021 11:51

generate h.254 video with various combinations of profiles and levels and verify codec string with bento4's mp4info

	#!/bin/bash

	# profiles: main main10 mainstillpicture msp main-intra main10-intra main444-8 main444-intra main444-stillpicture main422-10 main422-10-intra main444-10 main444-10-intra main12 main12-intra main422-12 main422-12-intra main444-12 main444-12-intra main444-16-intra main444-16-stillpicture
	# levels : 1, 2, 2.1, 3, 3.1, 4, 4.1, 5, 5.1, 5.2, 6, 6.1, 6.2, 8.5

	# https://www.bento4.com/documentation/mp4info/

	# https://stackoverflow.com/a/2033417/8965434
	# create 100mb ram disk on mac
	# hdiutil attach -nomount ram://$((2 * 1024 * 100))

kevinGodell / gist:2436875f8568b4213992574171d4d270

Created September 28, 2020 03:15 — forked from jsturgis/gist:3b19447b304616f18657

public test videos

	var mediaJSON = { "categories" : [ { "name" : "Movies",
	"videos" : [
	{ "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ],
	"subtitle" : "By Blender Foundation",
	"thumb" : "images/BigBuckBunny.jpg",
	"title" : "Big Buck Bunny"
	},
	{ "description" : "The first Blender Open Movie from 2006",
	"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ],

kevinGodell / raspberry_pi_4_model_b_rev_1_1_4gb_ffmpeg.md

Created August 17, 2020 18:06

Raspberry Pi 4 Model B Rev 1.1 (4GB)

ffmpeg hardware decoding experiment

modifications (needed for hardware decoding multiple video streams)

gpu_mem=512 was set in /boot/config.txt

dependencies

mp4frag (used for parsing the piped mp4 from ffmpeg)
pipe2jpeg (used for parsing the piped jpeg from ffmpeg)

description

kevinGodell / ffmpeg.sh

Created August 2, 2020 00:34

testing ffmpeg mp4 encryption

	#!/bin/bash
	# convert, encrypt, decrypt, probe

	echo "Hello ffmpeg mp4 encryption!"

	echo -e "\n---------- convert wav to mp4 ----------\n"

	ffmpeg -y -i long_input_44100.wav long_input_44100.mp4

	echo -e "\n---------- encrypt mp4 ----------\n"

kevinGodell / memdjpeg.c

Created April 8, 2018 15:23 — forked from PhirePhly/memdjpeg.c

A bare-bones example of how to use jpeglib to decompress a jpg in memory.

	// memdjpeg - A super simple example of how to decode a jpeg in memory
	// Kenneth Finnegan, 2012
	// blog.thelifeofkenneth.com
	//
	// After installing jpeglib, compile with:
	// cc memdjpeg.c -ljpeg -o memdjpeg
	//
	// Run with:
	// ./memdjpeg filename.jpg
	//

kevinGodell / appveyor.yml

Created February 13, 2018 19:24

Appveyor deployment install ffmpeg

	image: Visual Studio 2017

	environment:
	ffmpeg_download: https://ffmpeg.zeranoe.com/builds/
	matrix:
	- platform: x64
	nodejs_version: LTS
	ffmpeg_version: 3.4.1
	ffmpeg_platform: win64

kevinGodell / .travis.yml

Created February 13, 2018 19:23

Travis delpoyment install ffmpeg

	language: node_js
	node_js: node
	os:
	- linux
	- osx
	sudo: required
	dist: trusty
	before_install:
	- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo add-apt-repository -y ppa:mc3man/trusty-media; fi
	- if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get update; fi

kevinGodell / ffmpegToWeb.js

Created October 29, 2017 20:28 — forked from moeiscool/ffmpegToWeb.js

FFMPEG to Web Browser with Express, Socket.IO and JSMPEG

	// Shinobi (http://shinobi.video) - FFMPEG H.264 over HTTP Test
	// How to Use raw H.264 (Simulated RTSP)
	// 1. Start with `node ffmpegToWeb.js`
	// 2. Get the IP address of the computer where you did step 1. Example : 127.0.0.1
	// 3. Open VLC and "Open Network Stream".
	// 4. Input the following without quotes : `http://127.0.0.1:8001/h264` and start.

	var child = require('child_process');
	var io = require('socket.io');
	var events = require('events');

kevinGodell / manifest.mpd

Created October 4, 2017 22:29

sample mpeg dash manifest

	<?xml version="1.0" encoding="utf-8"?>
	<MPD xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="urn:mpeg:dash:schema:mpd:2011"
	xmlns:xlink="http://www.w3.org/1999/xlink"
	xsi:schemaLocation="urn:mpeg:DASH:schema:MPD:2011 http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-DASH_schema_files/DASH-MPD.xsd"
	profiles="urn:mpeg:dash:profile:isoff-live:2011"
	type="dynamic"
	minimumUpdatePeriod="PT3S"
	suggestedPresentationDelay="PT3S"
	availabilityStartTime="2017-10-04T03:31:48"

kevinGodell / mpeg-dash-ffmpeg-dashjs.md

Created September 20, 2017 22:53

Use ffmpeg to connect to an ip cctv camera and create video files on the fly that can be viewed in an mpeg-dash compatible browser using dash.js and an html5 video element.

Live streaming mpeg-dash video using ffmpeg and dash.js