Difference between revisions of "Mythbrake"
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*Because of the above, the script is written in bash. This is suboptimal in some ways (e.g. answering the question wether a channel has commercials) but on the other hand has little requirements and might be easier to understand to new users. | *Because of the above, the script is written in bash. This is suboptimal in some ways (e.g. answering the question wether a channel has commercials) but on the other hand has little requirements and might be easier to understand to new users. | ||
*This script is tested on RHEL6 (Sientific Linux) with MythTV Ver. 0.25 from the atrpms repository. | *This script is tested on RHEL6 (Sientific Linux) with MythTV Ver. 0.25 from the atrpms repository. | ||
+ | *If you find any bugs or problems feel free to mail me at ares.drake@gmail.com | ||
==Requirements== | ==Requirements== | ||
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'''Audio''': You can pass this script up to three languages and corresponding descriptions. The script will then automatically search the source file for the best track (i.e. the track with the most channels, e.g. 5.1 is better than stereo) for each given language. Surround sound is preserved, tracks with more than 2 channels are passed through without audio transcoding, mono or stereo tracks are transcoded to 128kbits/sec. | '''Audio''': You can pass this script up to three languages and corresponding descriptions. The script will then automatically search the source file for the best track (i.e. the track with the most channels, e.g. 5.1 is better than stereo) for each given language. Surround sound is preserved, tracks with more than 2 channels are passed through without audio transcoding, mono or stereo tracks are transcoded to 128kbits/sec. | ||
− | |||
=Change Logs= | =Change Logs= |
Revision as of 17:38, 5 November 2012
This script shall be called as MythTV user job. It transcodes the DVB recordings (mpeg files) using Handbrake.
Contents
Overview
Features
- On a Phenom II X4 2,8Ghz it is a lot faster than mythnuv2mkv using comparable quality settings. With Mythbrake I get ~40fps for HDTV and around ~250fps on SDTV without noticable quality degradation compared to the source file.
- All transcodings are single pass with constant quality as this results in the same quality as dual pass without the need for a second pass, thus its even faster. The only downside to dual pass is a slightly less predictable file size. As burning files to optical media is imho a thing of the past, exact file size hardly matters though.
- Can transcode using mutiple languages (up to 3)
- Preserves surround sound (e.g. AC3 5.1)
- Alerts via email in case of an error, so no problems lurk in the dark until the recording sheduled for transcoding is overwritten with newer recordings.
Notes
- I have no programming education and my job has nothing to do with computing. I wrote this script from what I learned from google and reading man pages. It is wirtten primarily for my own purposes to extend the lovely mythtv. It may not match your needs, but perhaps someone else's. This script may contain bugs, do things in suboptimal ways or eat your cat, be prepared and careful.
- Because of the above, the script is written in bash. This is suboptimal in some ways (e.g. answering the question wether a channel has commercials) but on the other hand has little requirements and might be easier to understand to new users.
- This script is tested on RHEL6 (Sientific Linux) with MythTV Ver. 0.25 from the atrpms repository.
- If you find any bugs or problems feel free to mail me at ares.drake@gmail.com
Requirements
- Handbrake is used for the transcoding and needs to be installed on your machine. See the handbrake website for installation details.
- Mediainfo is used for probing the source file (i.e. the recording) what audio tracks are available and wether the recoding is HDTV. Download on their website.
Source Formats
HDTV will be reencoded with Mpeg4 AVC H264 to save space. All HDTV channels I can receive here in Germany are without commercials, so I don't bother running mythcommflag on them. In case your situation differs you'll have to modify the script.
SDTV will have commercials cut out if necessary and will then be transcoded to Mpeg4 ASP (H263, Xvid, DivX). The scipt will check the ChanID of the recording to decide wethere there are commercials, so you have to adapt the list of ChanIDs to your setup. If the ChanID indicates the source file contains commercials, I use Mpeg4 ASP instead of Mpeg4 AVC on SDTV recordings because the transcoding is much faster and it is easier to cut later on as mythcommflag isn't perfect. For manual cutting afterwards I use Avidemux. If no commercials are present, the SDTV recordings are transcoded to H264 as well.
Audio: You can pass this script up to three languages and corresponding descriptions. The script will then automatically search the source file for the best track (i.e. the track with the most channels, e.g. 5.1 is better than stereo) for each given language. Surround sound is preserved, tracks with more than 2 channels are passed through without audio transcoding, mono or stereo tracks are transcoded to 128kbits/sec.
Change Logs
Version 1.3b
- 5 November 2012
- Bugfixes
Version 1.3
- 8 May 2012
- Support multiple languages (auto-searches matching track for each given language)
- Automatically uses passthrough on surround sound (e.g. AC3 5.1)
Version 1.2
- Include source file check
Version 1.1
- Change Container from MKV to MP4 optimized for streaming, reason: Compatibility with Philips UPnP Clients
- Updated to use %DIR% instead of fixed path
- some cleanup
Version 1.0
- Inital release
Scripts
Version 1.3b
#!/bin/bash # Save this as mythbrake.sh and make the file executable # Written by Ares Drake, ares.drake@gmail.com # Licenced under GPL v3 # This Script shall be called as MythTV user job. It transcodes the DVB recordings (mpeg files) using Handbrake. It first checks whether the recording is HDTV. If so it will be reencoded with H.264 to save space. SDTV will have commercials cut out if necessary and will then be transcoded to H.263 (Xvid, DivX). # #USAGE:###################### # This Sript shall be called as a MythTV user job like as follows: # /path/to/mythbrake.sh "%DIR" "%FILE%" "%CHANID%" "%STARTTIME%" "%TITLE%" "%SUBTITLE%" "%CATEGORY%" ############################# # # #REQUIREMENTS################ # You need to have the following programs installed: # mediainfo: http://mediainfo.sourceforge.net/ # handbrake with dependencies: http://www.handbrake.fr # Installation of these is convered on their sites ############################# ######SOME CONSTANSTS FOR USER EDITING###### ############################################ logdir="/opt/mythtv/transcodelogs" #change to your needs for logs errormail="youremail@adress.com" # this email address will be informed in case of errors outdir="/where/you/want/it" # specify directory where you want the transcoded file to be placed #Audio track (language) selection, your values must match the output syntax of mediainfo #check "mediainfo --Inform="Audio;%Language/String% yoursourcefile.mpg" in the terminal for syntax lang_1="German" #Primary language you want to keep lang_2="qaa" #Secondary language you want to keep, use "none" to skip, quaa is original language, wich is English most of the time lang_3="French" #Thid language you want to keep, use "none" to skip lang1_name="Deutsch" #This is the label of the 1st audio stream inside the final video file lang2_name="Englisch" #This is the label of the 2nd audio stream inside the final video file lang3_name="Französisch" #This is the label of the 3rd audio stream inside the final video file ######END constants for user editing###### ######DEFINE SOME BASIC VARIABLES###### ####################################### scriptstarttime=$(date +%F-%H%M%S) mythrecordingsdir="$1" # specify directory where MythTV stores its recordings file="$2" # using sed to sanitize the variables to avoid problematic file names, only alphanumerical, space, hyphen and underscore allowed, other characters are transformed to underscore subtitle="$(echo "$6" | sed 's/[^A-Za-z0-9_ -]/_/g')" title="$(echo "$5" | sed 's/[^A-Za-z0-9_ -]/_/g')" category="$(echo "$7" | sed 's/[^A-Za-z0-9_ -]/_/g')" chanid="$3" starttime="$4" if [ -z "$category" ] then category="Unbekannt" #name for unknown category, Unbekannt is German for unknown fi logfile="$logdir/$scriptstarttime-$title.log" touch "$logfile" chown mythtv:mythtv "$logfile" chmod a+rw "$logfile" filename="$title.mp4" # can be customized if [ -f "$outdir/$filename" ] # do not overwrite outfile, if already exists, change name then filename="$title-$scriptstarttime.mp4" fi outfile="$outdir/$filename" let lang_1_count=0 let lang_2_count=0 let lang_3_count=0 lang_1_track="" lang_2_track="" lang_3_track="" ######Variables finished ######DO SOME LOGGING###### ########################### echo "Transcode job $title starting at $scriptstarttime" >> "$logfile" echo "Original file: $mythrecordingsdir/$file" >> "$logfile" echo "Target file: $outfile" >> "$logfile" echo "ChanId: $chanid Time: $starttime" >> "$logfile" ######SOURCEFILE CHECK###### ############################ if [ ! -f "$mythrecordingsdir/$file" ] then #source file does not exist scriptstoptime=$(date +%F-%H:%M:%S) echo "Error at $scriptstoptime: Source file not found " >> "$logfile" echo "Maybe wrong path or missing permissions?" >> "$logfile" mail -s "Mythtv Sourcefile Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 fi ######MEDIAINFO CHECK###### ########################### fullmediainfo=(mediainfo $mythrecordingsdir/"$file") if [ $? != 0 ] # There were errors with Mediainfo. then scriptstoptime=$(date +%F-%H:%M:%S) echo "Error prior to encoding at $scriptstoptime" >> "$logfile" echo "Mediainfo encountered an error. Maybe mediainfo is not installed, or not in your path" >> "$logfile" echo "Mediainfo encountered an error. Maybe mediainfo is not installed, or not in your path" mail -s "Mythtv Mediainfo Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 else echo "Mediainfo Run successful." >> "$logfile" fi #######ANALAYZE AUDIO TRACKS AND DO LANGUAGE SELECTION###### ############################################################ acount=$(mediainfo --Inform="General;%AudioCount%" "$mythrecordingsdir/$file") #acount=number of audio tracks present in source file #Read all values into arrays bitrate="$(mediainfo --Inform="Audio;:%BitRate%" "$mythrecordingsdir/$file")" IFS=':' read -ra ARBITR <<< "$bitrate" language="$(mediainfo --Inform="Audio;:%Language/String%" "$mythrecordingsdir/$file")" IFS=':' read -ra ARLANG <<< "$language" channels="$(mediainfo --Inform="Audio;:%Channel(s)%" "$mythrecordingsdir/$file")" IFS=':' read -ra ARCHAN <<< "$channels" acodec="$(mediainfo --Inform="Audio;:%Format%" "$mythrecordingsdir/$file")" IFS=':' read -ra ARCODEC <<< "$acodec" #Finished building arrays echo "Array built successful, starting looping over audio tracks. There are $acount tracks, so we loop $acount times." >> "$logfile" for (( I=1; I <= "$acount"; I++ )) do #loop through all tracks, currently active track is $I #${ARBITR[$I]},${ARLANG[$I]},${ARCHAN[$I]},${ARCODEC[$I]} gives values for track $I echo "loop number $I." >> "$logfile" #select track for first language currentlang=${ARLANG[$I]} if [ "$currentlang" == "$lang_1" ] then echo -n "track $I matching $lang1_name" >> "$logfile" let "lang_1_count += 1" #let $lang_1_count = $lang_1_count+1 if [ $lang_1_count -eq 1 ] then #if this is the first track with desired language, we use it. echo " and is the first track matching" >> "$logfile" lang_1_track=$I let lang_1_chan="${ARCHAN[$I]}" lang_1_codec="${ARCODEC[$I]}" elif [ "${ARCHAN[$I]}" -gt "${ARCHAN[$lang_1_track]}" ] then echo " and is better than previous match" >> "$logfile" #there is already a track with the same desired language but this current track #has more channels, so we use this one instead of the previous track. lang_1_track=$I let lang_1_chan=${ARCHAN[$I]} lang_1_codec="${ARCODEC[$I]}" fi fi echo "Audio track1 iteration succesfull" >> "$logfile" #select track for second language if [ "$lang_2" != "none" ] then if [ "$currentlang" == "$lang_2" ] then echo -n "track $I matching $lang2_name" >> "$logfile" let "lang_2_count += 1" if [ $lang_2_count -eq 1 ] then #if this is the first track with desired language, we use it. echo " and is the first track matching" >> "$logfile" let lang_2_track=$I let lang_2_chan="${ARCHAN[$I]}" lang_2_codec="${ARCODEC[$I]}" elif [ "${ARCHAN[$I]}" -gt "${ARCHAN[$lang_2_track]}" ] then echo " and is better than previous match" >> "$logfile" #there is already a track with the same desired language but this current track #has more channels, so we use this one instead of the previous track. let lang_2_track=$I let lang_2_chan=${ARCHAN[$I]} lang_2_codec="${ARCODEC[$I]}" fi fi fi echo "Audio track2 iteration succesfull" >> "$logfile" if [ "$lang_3" != "none" ] then #select track for third language if [ "$currentlang" == "$lang_3" ] then echo -n "track $I matching $lang3_name" >> "$logfile" let "lang_3_count += 1" if [ $lang_3_count -eq 1 ] then #if this is the first track with desired language, we use it. echo " and is the first track matching" >> "$logfile" let lang_3_track=$I let lang_3_chan="${ARCHAN[$I]}" lang_3_codec="${ARCODEC[$I]}" elif [ "${ARCHAN[$I]}" -gt "${ARCHAN[$lang_3_track]}" ] then echo " and is better than previous match" >> "$logfile" #there is already a track with the same desired language but this current track #has more channels, so we use this one instead of the previous track. let lang_3_track=$I let lang_3_chan="${ARCHAN[$I]}" lang_3_codec="${ARCODEC[$I]}" fi fi fi echo "Audio track3 iteration succesfull" >> "$logfile" done echo "Audio track iteration succesfull" >> "$logfile" #okay, how may tracks to include in the outfile now? let totallangcount=($lang_1_count + $lang_2_count + $lang_3_count) if [ $totallangcount -eq 0 ] # No suitable audio track found. then scriptstoptime=$(date +%F-%H:%M:%S) echo "Audio track error at $scriptstoptime" >> "$logfile" echo "The script was unable to find a matching audio track, aborting." >> "$logfile" mail -s "Mythtv Audio Track Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 else echo "Audio selection successful." >> "$logfile" fi echo "Total number of tracks selected: $totallangcount" >> "$logfile" #echo "Selected track $lang_1_track for $lang_1" >> "$logfile" #echo "Selected track $lang_2_track for $lang_2" >> "$logfile" ########################BIS HIER HIN GEHTS if [ $lang_1_count -ge 1 ] then echo "Selected track $lang_1_track for $lang_1" >> "$logfile" audiotacks="$lang_1_track" #Handbrake_CLI -a if [ $lang_1_chan -gt 2 ] # more than 2 channels present, pass through track without transcoding,perfect quality then audioname="$lang1_name-Surround" #Handbrake_CLI -A audiocodec="copy" #Handbrake_CLI -E audiobitrate="auto" #Handbrake_CLI -B audiodownmix="auto" #Handbrake_CLI -6 else audioname="$lang1_name-Stereo" audiocodec="faac" audiobitrate="128" audiodownmix="stereo" fi else echo "No track found for $lang_1 = $lang1_name" >> "$logfile" fi if [ $lang_2_count -ge 1 ] then echo "Selected track $lang_2_track for $lang_2" >> "$logfile" if [ -z "$audiotacks" ] #no track for first language present then audiotacks="$lang_2_track" #Handbrake_CLI -a if [ $lang_2_chan -gt 2 ] # more than 2 channels present #pass through track without transcoding,perfect quality then audioname="$lang2_name-Surround" #Handbrake_CLI -A audiocodec="copy" #Handbrake_CLI -E audiobitrate="auto" #Handbrake_CLI -B audiodownmix="auto" #Handbrake_CLI -6 else audioname="$lang2_name-Stereo" audiocodec="faac" audiobitrate="128" audiodownmix="stereo" fi else #first track present, append audiotacks="$audiotracks,$lang_2_track" #Handbrake_CLI -a if [ $lang_2_chan -gt 2 ] # more than 2 channels present #pass through track without transcoding,perfect quality then audioname="$audioname,$lang2_name-Surround" #Handbrake_CLI -A audiocodec="$audiocodec,copy" #Handbrake_CLI -E audiobitrate="$audiobitrate,auto" #Handbrake_CLI -B audiodownmix="$audiodownmix,auto" #Handbrake_CLI -6 else audioname="$audioname,$lang2_name-Stereo" audiocodec="$audiocodec,faac" audiobitrate="$audiobitrate,128" audiodownmix="$audiodownmix,stereo" fi fi else echo "No track found for $lang_2 = $lang2_name" >> "$logfile" fi if [ $lang_3_count -ge 1 ] then echo "Selected track $lang_3_track for $lang_3" >> "$logfile" if [ -z "$audiotacks" ] #no track for first or second language present then audiotacks="$lang_3_track" #Handbrake_CLI -a if [ $lang_3_chan -gt 2 ] # more than 2 channels present #pass through track without transcoding,perfect quality then audioname="$lang3_name-Surround" #Handbrake_CLI -A audiocodec="copy" #Handbrake_CLI -E audiobitrate="auto" #Handbrake_CLI -B audiodownmix="auto" #Handbrake_CLI -6 else audioname="$lang3_name-Stereo" audiocodec="faac" audiobitrate="128" audiodownmix="stereo" fi else #previous track present, append audiotacks="$audiotracks,$lang_3_track" #Handbrake_CLI -a if [ $lang_3_chan -gt 2 ] # more than 2 channels present #pass through track without transcoding,perfect quality then audioname="$audioname,$lang3_name-Surround" #Handbrake_CLI -A audiocodec="$audiocodec,copy" #Handbrake_CLI -E audiobitrate="$audiobitrate,auto" #Handbrake_CLI -B audiodownmix="$audiodownmix,auto" #Handbrake_CLI -6 else audioname="$audioname,$lang3_name-Stereo" audiocodec="$audiocodec,faac" audiobitrate="$audiobitrate,128" audiodownmix="$audiodownmix,stereo" fi fi else echo "No track found for $lang_3 = $lang3_name" >> "$logfile" fi echo "Finished Audio Selection" >> "$logfile" #################FINISHED AUDIO TRACK SELECTION############ echo "$audiotacks, $audioname, $audiocodec, $audiobitrate, $audiodownmix" echo "$audiotacks, $audioname, $audiocodec, $audiobitrate, $audiodownmix" >> "$logfile" #HandBrakeCLI -q 19.0 -e x264 -r 25 -a $audiotacks -A $audioname -E $audiocodec -B $audiobitrate -6 $audiodownmix -f mp4 --crop 0:0:0:0 -d -m -x b-adapt=2:rc-lookahead=50:ref=3:bframes=3:me=umh:subme=8:trellis=1:merange=20:direct=auto -i "$mythrecordingsdir/$file" -o "$outfile" -4 --optimize 2>> "$logfile" #################### #get width: you need mediainfo installed, see mediainfo.sourceforge.net width=$(mediainfo --Inform="Video;%Width%" "$mythrecordingsdir/$file") ############################################################## ### Transcoding starts here, in 3 differend versions: HDTV w/o commercials, SDTV w/ and w/o commercials. # width >=1280 # currently this can only be ARD HD, ZDF HD or ARTE HD, so no commercials # Userjob for HDTV: Re-Encode in AVC H.264: saves space, but keeps H.264, x264 via HandbrakeCLI if [ $width -ge 1280 ] then echo "Userjob HD-TV starts because of with of $width" >> "$logfile" HandBrakeCLI -q 19.0 -e x264 -r 25 -a "$audiotacks" -A "$audioname" -E "$audiocodec" -B "$audiobitrate" -6 "$audiodownmix" -f mp4 --crop 0:0:0:0 -d -m -x b-adapt=2:rc-lookahead=50:ref=3:bframes=3:me=umh:subme=8:trellis=1:merange=20:direct=auto -i "$mythrecordingsdir/$file" -o "$outfile" -4 --optimize 2>> "$logfile" if [ $? != 0 ] # There were errors in the Handbrake Run. then scriptstoptime=$(date +%F-%H:%M:%S) echo "Transcoding-Error at $scriptstoptime" >> "$logfile" echo "Interrupted file $outfile" >> "$logfile" echo "###################################" >> "$logfile" echo $fullmediainfo >> "$logfile" echo "###################################" >> "$logfile" outmediainfo=(mediainfo "$outfile") echo $outmediainfo >> "$logfile" echo "###################################" >> "$logfile" mail -s "Mythtv Transcoding Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 else echo "Transcode Run successfull." >> "$logfile" file "$outfile" >> "$logfile" fi #check if outfile exists if [ ! -f "$outfile" ]; then scriptstoptime=$(date +%F-%H:%M:%S) echo "Output-Error at $scriptstoptime" >> "$logfile" echo "Ausgabedatei $outfile existiert nicht" >> "$logfile" echo "###################################" >> "$logfile" echo $fullmediainfo >> "$logfile" echo "###################################" >> "$logfile" outmediainfo=(mediainfo "$outfile") echo $outmediainfo >> "$logfile" echo "###################################" >> "$logfile" mail -s "Mythtv Ausgabedatei Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 fi #width <= 720 elif [ $width -le 720 ] then # this is SDTV, so it could be either with or without commercials. We check for commercials by comparing to ChanID list. if [ #ChanID without commercials $chanid == 3007 -o #3sat $chanid == 29014 -o #zdf neo $chanid == 30014 -o #zdf neo $chanid == 30107 -o #BayrFS $chanid == 29110 -o #BR $chanid == 30110 -o #BR $chanid == 30113 -o #SWR-BW $chanid == 30111 -o #WDR $chanid == 30230 -o #MDR $chanid == 30206 -o #rbb $chanid == 29205 -o #rbb $chanid == 29206 -o #rbb $chanid == 29205 -o #rbb $chanid == 29486 -o #SR $chanid == 30107 -o #BayrFS ] # better option would be to pull the commercial-free flag from the database, but # then I got advised against manual access to the database when using a language # such as bash with no mysql support. then #This is a channel without commercials, encoding to X264 echo "Userjob SD-TV ohne Werbung startet" >> "$logfile" HandBrakeCLI -q 19.0 -e x264 -r 25 -a "$audiotacks" -A "$audioname" -E "$audiocodec" -B "$audiobitrate" -6 "$audiodownmix" -f mp4 --crop 0:0:0:0 -d -m -x b-adapt=2:rc-lookahead=50:ref=3:bframes=3:me=umh:subme=8:trellis=1:merange=20:direct=auto -i "$mythrecordingsdir/$file" -o "$outfile" -4 --optimize 2>> "$logfile" if [ $? != 0 ] # There were errors in the Handbrake Run. then scriptstoptime=$(date +%F-%H:%M:%S) echo "Transcoding-Error at $scriptstoptime" >> "$logfile" echo "Broken File $outfile" >> "$logfile" echo "###################################" >> "$logfile" echo $fullmediainfo >> "$logfile" mail -s "Mythtv Transcoding Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 else echo "Transcode Run successful." >> "$logfile" fi else # We have a channel with commercials, so flag & cut them out first. echo "Userjob SD-TV mit Werbung startet" >> "$logfile" /usr/bin/mythcommflag -c "$chanid" -s "$starttime" --gencutlist /usr/bin/mythtranscode --chanid "$chanid" --starttime "$starttime" --mpeg2 --honorcutlist /usr/bin/mythcommflag --file "$file" --rebuild #Finished commercial cutting, following is encoding as above #SD-TV Userjob is encoding to MPEG4 ASP aka DivX aka Xvid via FFMPEG via HandBrakeCLI # $SDCCMDLINE is the commandline for SDtv-Commercials SDCCMDLINE='/usr/bin/HandBrakeCLI -q 3 -r 25 -a $audiotacks -A $audioname -E $audiocodec -B $audiobitrate -6 $audiodownmix -f mp4 --crop 0:0:0:0 -d -m -i "$mythrecordingsdir/$file" -o "$outfile" --optimize 2>> "$logfile"' echo "Commandline: $SDCCMDLINE" >> "$logfile" HandBrakeCLI -q 3 -r 25 -a "$audiotacks" -A "$audioname" -E "$audiocodec" -B "$audiobitrate" -6 "$audiodownmix" -f mp4 --crop 0:0:0:0 -d -m -i "$mythrecordingsdir/$file" -o "$outfile" --optimize 2>> "$logfile" if [ $? != 0 ] # There were errors in the Handbrake Run. then scriptstoptime=$(date +%F-%H:%M:%S) echo "Transcoding-Error at $scriptstoptime" >> "$logfile" echo "Broken File $outfile" >> "$logfile" echo "###################################" >> "$logfile" echo $fullmediainfo >> "$logfile" mail -s "Mythtv Transcoding Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 else echo "Transcode Run successful." >> "$logfile" fi fi #720<width<1280 or error getting width: dunno whats going on here, abort else echo "Error: 720<width<1280, undefined condition, aborting" >> "$logfile" echo "###################################" >> "$logfile" echo $fullmediainfo >> "$logfile" mail -s "Mythtv Transcoding Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 fi scriptstoptime=$(date +%F-%H%M%S) echo "Successfully finished at $scriptstoptime" >> "$logfile" echo "Transcoded file: $outfile" >> "$logfile" #Transcoding now done, following is some maintenance work chown mythtv:mythtv "$outfile" exit 0
Version 1.2
# Version 1.2 #!/bin/bash # Save this as mythbrake.sh and make the file executable # Written by Ares Drake, ares.drake@gmail.com # Licenced under GPL v3 # This Script shall be called as MythTV user job. It transcodes the DVB recordings (mpeg files) using Handbrake. It first checks whether the recording is HDTV. If so it will be reencoded with H.264 to save space. SDTV will have commercials cut out if necessary and will then be transcoded to H.263 (Xvid, DivX). # #USAGE:###################### # This Sript shall be called as a MythTV user job like as follows: # /path/to/mythbrake.sh "%DIR%" "%FILE%" "%CHANID%" "%STARTTIME%" "%TITLE%" "%SUBTITLE%" ############################# # # #REQUIREMENTS################ # You need to have the following programs installed: # mediainfo: http://mediainfo.sourceforge.net/ # handbrake with dependencies: http://www.handbrake.fr ############################# ###Some constants for user editing logdir="/opt/mythtv/transcodelogs" errormail="youremail@adress.com" # this email address will be informed in case of errors outdir="/where/you/want/it" # specify directory where you want the transcoded file to be placed audiostreamname="Deutsch-Stereo" #This is the label of the audio stream inside the final video file ###Define some basic variables scriptstarttime=$(date +%F-%H%M%S) mythrecordingsdir="$1" # specify directory where MythTV stores its recordings file="$2" chanid="$3" starttime="$4" title="$(echo "$5" | sed 's/(//g' | sed 's/)//g' | sed 's/:/_/g' | sed 's%/%_%g')" subtitle="$(echo "$6" | sed 's/(//g' | sed 's/)//g' | sed 's/://g' | sed 's%/%_%g')" logfile="$logdir/$scriptstarttime-$title.log" touch "$logfile" chown mythtv:mythtv "$logfile" chmod a+rw "$logfile" filename="$title.mp4" # can be customized if [ -f "$outdir/$filename" ] # do not overwrite outfile, if already exists, change name then filename="filename-$scriptstarttime" fi outfile="$outdir/$filename" ###Do some logging echo "Transcode job $title starting at $scriptstarttime" >> "$logfile" echo "Original file: $mythrecordingsdir/$file" >> "$logfile" echo "Target file: $outfile" >> "$logfile" echo "ChanId: $chanid Time: $starttime" >> "$logfile" #Source file check if [ ! -f "$mythrecordingsdir/$file" ]; then #source file does not exist scriptstoptime=$(date +%F-%H:%M:%S) echo "Error at $scriptstoptime: Source file not found " >> "$logfile" echo "Maybe wrong path or missing permissions?" >> "$logfile" mail -s "Mythtv Sourcefile Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 fi #################### #get width: you need mediainfo installed, see mediainfo.sourceforge.net width=$(mediainfo --Inform="Video;%Width%" "$mythrecordingsdir/$file") if [ $? != 0 ] # There were errors with Mediainfo. then scriptstoptime=$(date +%F-%H:%M:%S) echo "Error prior to encoding at $scriptstoptime" >> "$logfile" echo "Mediainfo encountered an error. Maybe mediainfo is not installed, or not in your path" >> "$logfile" echo "Mediainfo encountered an error. Maybe mediainfo is not installed, or not in your path" mail -s "Mythtv Mediainfo Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 else echo "Mediainfo Run successful." >> "$logfile" fi fullmediainfo=(mediainfo $mythrecordingsdir/"$file") ############################################################## ### Transcoding starts here, in 3 differend versions: HDTV w/o commercials, SDTV w/ and w/o commercials. # width >=1280 # currently this can only be ARD HD, ZDF HD or ARTE HD, so no commercials # Userjob for HDTV: Re-Encode in AVC H.264: saves space, but keeps H.264, x264 via HandbrakeCLI if [ $width -ge 1280 ] then echo "Userjob HD-TV starts because of with of $width" >> "$logfile" # $HDCMDLINE is the commandline for HDTV HDCMDLINE='HandBrakeCLI -q 20.0 -e x264 -r 25 -a 1 -A $audiostreamname -E MP3 -B 128 -R 48 --mixdown dpl2 -f mp4 --crop 0:0:0:0 -d -m -x b-adapt=2:rc-lookahead=50:ref=3:bframes=3:me=umh:subme=8:trellis=1:merange=20:direct=auto -i "$mythrecordingsdir/$file" -o "$outfile" --optimize 2>> "$logfile"' HandBrakeCLI -q 20.0 -e x264 -r 25 -a 1 -A $audiostreamname -E MP3 -B 128 -R 48 --mixdown dpl2 -f mp4 --crop 0:0:0:0 -d -m -x b-adapt=2:rc-lookahead=50:ref=3:bframes=3:me=umh:subme=8:trellis=1:merange=20:direct=auto -i "$mythrecordingsdir/$file" -o "$outfile" --optimize 2>> "$logfile" if [ $? != 0 ] # There were errors in the Handbrake Run. then scriptstoptime=$(date +%F-%H:%M:%S) echo "Transcoding-Error at $scriptstoptime" >> "$logfile" echo "Interrupted file $outfile" >> "$logfile" echo "###################################" >> "$logfile" echo $fullmediainfo >> "$logfile" mail -s "Mythtv Transcoding Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 else echo "Transcode Run successfull." >> "$logfile" fi #width <= 720 elif [ $width -le 720 ] then # this is SDTV, so it could be either with or without commercials. We check for commercials by comparing to ChanID list. if [ $chanid == 3007 -o $chanid == 29014 -o $chanid == 30014 -o $chanid == 30107 ] #ChanID without commercials: 3007 3sat; ZDF info; 29014 & 3014 ZDF neo; ZDF theater; 30107 BayrFS Nord; BayrFS Süd; SWR BW; RBB Berlin; WDR Köln; BR alpha; SR # better option would be to pull the commercial-free flag from the database, but # then i would advise against manual access to the database when using a language # such as bash with no mysql support. then #This is a channel without commercials echo "Userjob SD-TV ohne Werbung startet" >> "$logfile" #SD-TV Userjob is encoding to MPEG4 ASP aka DivX aka Xvid via FFMPEG via HandBrakeCLI # $SDFCMDLINE is the commandline for SDtv-commercialFree SDFCMDLINE="/usr/bin/HandBrakeCLI -q 3 -r 25 -a 1 -A $audiostreamname -E MP3 -B 128 -R 48 --mixdown dpl2 -f mp4 --crop 0:0:0:0 -d -m -i $mythrecordingsdir/$file -o $outfile --optimize" echo "Commandline: $SDFCMDLINE" >> "$logfile" HandBrakeCLI -q 3 -r 25 -a 1 -A $audiostreamname -E MP3 -B 128 -R 48 --mixdown dpl2 -f mp4 --crop 0:0:0:0 -d -m -i "$mythrecordingsdir/$file" -o "$outfile" --optimize 2>> "$logfile" if [ $? != 0 ] # There were errors in the Handbrake Run. then scriptstoptime=$(date +%F-%H:%M:%S) echo "Transcoding-Error at $scriptstoptime" >> "$logfile" echo "Broken File $outfile" >> "$logfile" echo "###################################" >> "$logfile" echo $fullmediainfo >> "$logfile" mail -s "Mythtv Transcoding Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 else echo "Transcode Run successful." >> "$logfile" fi else # We have a channel with commercials, so flag & cut them out first. echo "Userjob SD-TV mit Werbung startet" >> "$logfile" /usr/bin/mythcommflag -c "$chanid" -s "$starttime" --gencutlist /usr/bin/mythtranscode --chanid "$chanid" --starttime "$starttime" --mpeg2 --honorcutlist /usr/bin/mythcommflag --file "$file" --rebuild #Finished commercial cutting, following is encoding as above #SD-TV Userjob is encoding to MPEG4 ASP aka DivX aka Xvid via FFMPEG via HandBrakeCLI # $SDCCMDLINE is the commandline for SDtv-Commercials SDCCMDLINE='/usr/bin/HandBrakeCLI -q 3 -r 25 -a 1 -A $audiostreamname -E MP3 -B 128 -R 48 --mixdown dpl2 -f mp4 --crop 0:0:0:0 -d -m -i "$mythrecordingsdir/$file" -o "$outfile" --optimize 2>> "$logfile"' echo "Commandline: $SDCCMDLINE" >> "$logfile" HandBrakeCLI -q 3 -r 25 -a 1 -A $audiostreamname -E MP3 -B 128 -R 48 --mixdown dpl2 -f mp4 --crop 0:0:0:0 -d -m -i "$mythrecordingsdir/$file" -o "$outfile" --optimize 2>> "$logfile" if [ $? != 0 ] # There were errors in the Handbrake Run. then scriptstoptime=$(date +%F-%H:%M:%S) echo "Transcoding-Error at $scriptstoptime" >> "$logfile" echo "Broken File $outfile" >> "$logfile" echo "###################################" >> "$logfile" echo $fullmediainfo >> "$logfile" mail -s "Mythtv Transcoding Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 else echo "Transcode Run successful." >> "$logfile" fi fi #720<width<1280 or error getting width: dunno whats going on here, abort else echo "Error: 720<width<1280, undefined condition, aborting" >> "$logfile" echo "###################################" >> "$logfile" echo $fullmediainfo >> "$logfile" mail -s "Mythtv Transcoding Error on $HOSTNAME" "$errormail" < "$logfile" mv "$logfile" "$logfile-FAILED" exit 1 fi scriptstoptime=$(date +%F-%H:%M:%S) echo "Successfully finished at $scriptstoptime" >> "$logfile" echo "Transcoded file: $outfile" >> "$logfile" exit 0