-
-
Save joerodriguez/7558297 to your computer and use it in GitHub Desktop.
remix with ffmpeg if input is already avc
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #!/bin/bash | |
| # encode.sh | |
| # | |
| # Copyright (c) 2013 Don Melton | |
| # | |
| # This version published on June 7, 2013. | |
| # | |
| # Re-encode video files in a format suitable for playback on Apple TV, Roku 3, | |
| # iOS, OS X, etc. | |
| # | |
| # Input is assumed to be a single file readable by HandBrakeCLI and mediainfo, | |
| # e.g. just about any .mkv, .avi, .mpg, etc. file. | |
| # | |
| # The script also automatically calculates video frame rates and audio channel | |
| # configuration. | |
| # | |
| # Output is an MP4 container with H.264 video, AAC audio and possibly AC-3 | |
| # audio if the input has more than two channels. | |
| # | |
| # No scaling or cropping is performed on the output. This is a good thing. | |
| # | |
| # The output .mp4 file and a companion .log file are written to the current | |
| # directory. | |
| # | |
| # This script depends on two separate command line tools: | |
| # | |
| # HandBrakeCLI http://handbrake.fr/ | |
| # mediainfo http://mediainfo.sourceforge.net/ | |
| # | |
| # Make sure both are in your `$PATH` or redefine the variables below. | |
| # | |
| # Usage: | |
| # | |
| # ./encode.sh [input file] | |
| # | |
| logn="$1" | |
| logn="$(basename "$logn")" | |
| logn="${logn%\.[^.]*}" | |
| { | |
| die() { | |
| echo "$program: $1" >&2 | |
| exit ${2:-1} | |
| } | |
| escape_string() { | |
| echo "$1" | sed "s/'/'\\\''/g;/ /s/^\(.*\)$/'\1'/" | |
| } | |
| move_to_processed() { | |
| echo "moving $1 >>>>> $2" | |
| mv "$1" "$2" | |
| } | |
| readonly program="$(basename "$0")" | |
| readonly input="$1" | |
| output="$(basename "$input")" | |
| output="${output%\.[^.]*}.m4v" | |
| if [ ! "$input" ]; then | |
| die 'too few arguments' | |
| fi | |
| handbrake="HandBrakeCLI" | |
| ffmpeg="/usr/local/bin/ffmpeg" | |
| mediainfo="/usr/local/bin/mediainfo" | |
| mkvextract="/usr/local/bin/mkvextract" | |
| audioformat="$("$mediainfo" --Inform='Audio;%Format%' "$input")" | |
| if ([[ ! "$audioformat" =~ DTS ]] && [[ "$input" =~ m4v ]] ); then | |
| move_to_processed $input | |
| die 'format looks good' | |
| fi | |
| videocodec="$("$mediainfo" --Inform='Video;%Format%' "$input")" | |
| num_channels="$("$mediainfo" --Inform='Audio;%Channels%' "$input" | sed 's/[^0-9].*$//')" | |
| track_num="$("$mediainfo" --Inform='Audio;%StreamKindID%:%Format%:%Language/String%\n' "$input" | grep -i eng | grep 'AC-3' | cut -d':' -f1)" | |
| [ ! -z $track_num ] || track_num="$("$mediainfo" --Inform='Audio;%StreamKindID%:%Format%:%Language/String%\n' "$input" | grep -i eng | grep 'DTS' | cut -d':' -f1)" | |
| [ ! -z $track_num ] || track_num="$("$mediainfo" --Inform='Audio;%StreamKindID%:%Language/String%\n' "$input" | grep -i eng | cut -d':' -f1)" | |
| if [ $track_num ]; then | |
| track_num=$(($track_num + 1)) | |
| else | |
| track_num="1" | |
| fi | |
| echo "choosing audio track $track_num" | |
| echo "$videocodec" | |
| if [ "$videocodec" = "AVC" ]; then | |
| echo "found AVC video codec, converting with ffmpeg" | |
| if ((num_channels > 2)); then | |
| echo "Found more than 2 channels" | |
| time nice -n 18 \ | |
| "$ffmpeg" -i "$input" \ | |
| -map 0:0 -map 0:1 \ | |
| -c:v copy \ | |
| -c:a:0 ac3 -b:a:0 640k \ | |
| -c:s copy \ | |
| "../processing/$output" | |
| else | |
| echo "Found only 2 channels" | |
| time nice -n 18 \ | |
| "$ffmpeg" -i "$input" \ | |
| -map 0:0 -map 0:1 \ | |
| -c:v copy \ | |
| -c:a:0 libfaac -b:a:0 160k \ | |
| -c:s copy \ | |
| "../processing/$output" | |
| fi | |
| else | |
| echo "found no AVC video codec, converting with handbrake" | |
| handbrake_options="--large-file --encoder x264 --crop 0:0:0:0 --strict-anamorphic --x264-tune film --x264-preset veryfast" | |
| # sample options | |
| # handbrake_options="$handbrake_options --start-at duration:150 --stop-at duration:170" | |
| if ($height > 1000); then | |
| quality="20" | |
| elif ($height > 720); then | |
| quality="19" | |
| elif ($height > 576); then | |
| quality="18" | |
| else | |
| quality="18" | |
| fi | |
| handbrake_options="$handbrake_options -q $quality" | |
| echo "encoding with quality $quality" | |
| frame_rate="$("$mediainfo" --Inform='Video;%FrameRate_Original%' "$input")" | |
| if [ ! "$frame_rate" ]; then | |
| frame_rate="$("$mediainfo" --Inform='Video;%FrameRate%' "$input")" | |
| fi | |
| if [ "$frame_rate" == '29.970' ]; then | |
| handbrake_options="$handbrake_options --rate 23.976" | |
| else | |
| handbrake_options="$handbrake_options --rate 30 --pfr" | |
| fi | |
| if ((num_channels > 2)); then | |
| echo "Found more than 2 channels" | |
| handbrake_options="$handbrake_options -a $track_num,$track_num --aencoder copy:ac3,ca_aac" | |
| elif [ "$("$mediainfo" --Inform='General;%Audio_Format_List%' "$input" | sed 's| /.*||')" == 'AAC' ]; then | |
| handbrake_options="$handbrake_options -a $track_num --aencoder copy:aac" | |
| fi | |
| if [ "$frame_rate" == '29.970' ]; then | |
| handbrake_options="$handbrake_options --detelecine" | |
| fi | |
| echo "Encoding: $input" | |
| time nice -n 18 \ | |
| "$handbrake" \ | |
| $handbrake_options \ | |
| --input "$input" \ | |
| --output "../processing/$output" | |
| fi | |
| short_name=${1##*/} | |
| short_name=${short_name%.*} | |
| out_dir="../../movies/$short_name" | |
| mkdir "$out_dir" | |
| move_to_processed "../processing/$output" "$out_dir/" | |
| eng_sub_track_id="$("$mediainfo" --Inform='Text;%ID%:%Language/String%\n' "$input" | grep -i en | cut -d':' -f1 | head -n 1)" | |
| if [[ ! -z $eng_sub_track_id ]]; then | |
| # eng_sub_track_id=$((eng_sub_track_id-1)) | |
| echo "trying to extract english subtitle ID $eng_sub_track_id" | |
| "$mkvextract" tracks "$input" $eng_sub_track_id:"$out_dir/$short_name.eng.srt" | |
| else | |
| echo "could not find an english subtitle" | |
| fi | |
| mv "$input" ../backup/ | |
| } 2>&1 | tee -a "../logs/${logn}.log" | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment