Untitled

#!/bin/bash

 

# This shell script will process & encode a single video file, and output 3

# seperate files in the following formats: WebM, Ogg Theora, & h.264 for

# streaming via an HTML5 player.

#

# You'll need ffmpeg, ffmpeg2theora, & HandbrakeCLI installed to run this

# script.  ffmpeg and ffmpeg2theora can be installed via Homebrew on a Mac.

# If you're using Ubuntu, use the PPA at

# https://launchpad.net/~jon-severinsson/+archive/ffmpeg

# for newer versions of ffmpeg and libvpx (WebM codec).

#

# For the HandbrakeCLI, please visit the Handbrake website at

# http://www.handbrake.fr

#

# Command line arguments taken from:

# http://diveintohtml5.info/video.html#example

#

# Modifications made for resolution and quality where needed.

 

INPUT_FILE=$1

FILENAME=${INPUT_FILE%%.*}

VIDEO_WIDTH="960"

VIDEO_HEIGHT="540"

VIDEO_DIM=$VIDEO_WIDTH"x"$VIDEO_HEIGHT

 

if [ -z "$INPUT_FILE" ]; then

    echo "Usage: encode4codecasts.sh FILENAME"

    echo "You need to pass a video to process. Exiting"

    exit

fi

 

echo "Converting to Ogg/Theora"

echo "RUNNING: ffmpeg2theora --videoquality 7 --width $VIDEO_WIDTH --output $FILENAME.ogv $INPUT_FILE"

 

ffmpeg2theora --videoquality 7 --width $VIDEO_WIDTH --output $FILENAME.ogv $INPUT_FILE

 

echo "Converting to h.264"

echo "RUNNING: HandBrakeCLI --preset "iPhone 4" --width $VIDEO_WIDTH --two-pass --turbo --optimize --input $INPUT_FILE --output $FILENAME.mp4"

 

HandBrakeCLI --preset "iPhone 4" --width $VIDEO_WIDTH --two-pass --turbo --optimize --input $INPUT_FILE --output $FILENAME.mp4

 

echo "Converting to WebM"

echo "RUNNING: ffmpeg -pass 1 -passlogfile $INPUT_FILE -threads 16 -keyint_min 0 -g 250 -skip_threshold 0 -qmin 1 -qmax 51 -i $INPUT_FILE -vcodec libvpx -b 204800 -s $VIDEO_DIM -an -f webm -y NUL"

 

ffmpeg -pass 1 -passlogfile $INPUT_FILE -threads 16 -keyint_min 0 -g 250 -skip_threshold 0 -qmin 1 -qmax 51 -i $INPUT_FILE -vcodec libvpx -b:v 204800 -s $VIDEO_DIM -an -f webm -y $FILENAME.webm

 

echo "WebM - First pass complete"

echo "WebM - Starting second pass"

 

echo "RUNNING: ffmpeg -pass 2 -passlogfile $INPUT_FILE -threads 16  -keyint_min 0 -g 250 -skip_threshold 0 -qmin 1 -qmax 51 -i $INPUT_FILE -vcodec libvpx -b 204800 -s $VIDEO_DIM -acodec libvorbis -ac 2 -y $FILENAME.webm"

 

ffmpeg -pass 2 -passlogfile $INPUT_FILE -threads 16  -keyint_min 0 -g 250 -skip_threshold 0 -qmin 1 -qmax 51 -i $INPUT_FILE -vcodec libvpx -b:v 204800 -s $VIDEO_DIM -acodec libvorbis -ac 2 -y $FILENAME.webm

 

echo "DONE"