protrolium

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

maxlevesque

sudo apt install libgmp-dev libmpc-dev libisl-dev libmpfr-dev
# change 6.3 to anything you'd like
wget http://mirrors-usa.go-parts.com/gcc/releases/gcc-6.3.0/gcc-6.3.0.tar.bz2
tar jxvf gcc-6.3.0.tar.bz2
mkdir objdir
cd objdir
# change /tmp/mygcc6.3 to any output folder you'd like
../gcc-6.3.0/configure --prefix=/tmp/mygcc6.3 --disable-multilib --disable-werror
make -j
make install

esrever10

# linux send h264 rtp stream:
gst-launch-1.0 -v ximagesrc ! video/x-raw,framerate=20/1 ! videoscale ! videoconvert ! x264enc tune=zerolatency bitrate=500 speed-preset=superfast ! rtph264pay ! udpsink host=127.0.0.1 port=5000

# Macos send h264 rtp stream:
gst-launch-1.0 -v avfvideosrc capture-screen=true ! video/x-raw,framerate=20/1 ! videoscale ! videoconvert ! x264enc tune=zerolatency bitrate=500 speed-preset=superfast ! rtph264pay ! udpsink host=127.0.0.1 port=5000

# receive h264 rtp stream:
gst-launch-1.0 -v udpsrc port=5000 caps = "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, payload=(int)96" ! rtph264depay ! decodebin ! videoconvert ! autovideosink