sfahadshahzad

Most GStreamer examples found online are either for Linux or for gstreamer 0.10.

This particular release note seems to have covered important changes, such as:

ffmpegcolorspace => videoconvert
ffmpeg => libav

Applying -v will print out useful information. And most importantly the negotiation results.

Encoding high-quality HEVC content with FFmpeg - based NVENC encoder on supported hardware:

If you've built ffmpeg as instructed here on Linux and the ffmpeg binary is in your path, you can do fast HEVC encodes as shown below, using NVIDIA's NPP's libraries to vastly speed up the process.

Now, to do a simple NVENC encode in 1080p, (that will even work for Maxwell Gen 2 (GM200x) series), start with:

ffmpeg  -i <inputfile>  \
-filter:v hwupload_cuda,scale_npp=w=1920:h=1080:format=nv12:interp_algo=lanczos,hwdownload \

-c:v hevc_nvenc -profile main -preset slow -rc vbr_hq \


	# record on multiple HyperDecks
	$HyperDecks = @('10.0.0.34','10.0.0.35','10.0.0.36','10.0.0.37')
	$fileName = 'Recording' + (Get-Date).tostring("dd_MM_yyyy_hh_mm")
	$sb = {
	param ([string] $HyperDeckIP, [string] $HDcommand)
	try {
	$socket = new-object System.Net.Sockets.TcpClient($HyperDeckIP, 9993)
	$stream = $socket.GetStream()
	$writer = new-object System.IO.StreamWriter($stream)

	#!/bin/bash

	# Basic gstreamer quad video wall application.
	# Displays 4 videos.
	# They have to be synced to eachother and playing for this to work.

	PARAMS_NEEDED=4

	if [ $# -ne $PARAMS_NEEDED ]
	then

	#!/bin/sh

	cat << EOF > test.filter-script
	[0:v]kerndeint,format=pix_fmts=nv12,split=2[split1-1][split1-2];
	[split1-1]scale=-2:720,split=3[scale-720-1][scale-720-2][scale-720-3];
	[split1-2]scale=-2:540,split=2[scale-540-1][scale-540-2];
	[scale-720-1]fps=1/60[stills-1];
	[0:a]asplit=4[audio-1][audio-2][audio-3][audio-4]
	EOF

	@echo off
	:: Set duration in seconds
	set duration=615

	:: Note - this outputs 720p 59.94fps drop-frame sample
	ffmpeg.exe ^
	-f lavfi -i "smptebars=duration=%duration%:size=1280x720:rate=60000/1001" ^
	-f lavfi -i "sine=frequency=1000:sample_rate=48000:duration=%duration%" ^
	-vf drawtext="fontfile=consola.ttf:\ timecode='00\:00\:00\;00':rate=60000/1001:fontsize=64:fontcolor='white':\ boxcolor=0x00000088:box=1:boxborderw=5:x=20:y=20" ^
	-c:v mpeg2video -b:v 6000k ^

	#!/bin/bash

	INPUT="/srv/elias/assets/audio-bbc.mp4"
	TARGET="rtmp://rtmp-api.facebook.com:80/rtmp/XXX"
	FORMAT="flv"
	VBITRATE="2000k"
	VPRE="fast"
	VPROFILE="main"
	VLEVEL="3.1"
	FPS=25

	#!/bin/bash

	ffmpeg \
	-i "http://live.m2.tv:80/hls/stream.m3u8" \
	-vf "scale=720:576,fps=fps=25,setdar=dar=16/9,format=pix_fmts=uyvy422" \
	-af "aresample=48000" -ac 2 \
	-f decklink -y "DeckLink Mini Monitor" \
	-acodec copy -vcodec copy \
	-f mpegts \
	-y "udp://239.1.100.2:10480?localaddr=10.1.5.57&pkt_size=1316&fifo_size=1000000" \