Postprocessing calling question

[dmporch]

Howdy folks -

Well, before I went digital I had a parallelprocessing batch that would comskip, comclean, and clean up afterwards. Everything was great. But now that I'm forced to use the dvr-ms mux for quality's sake, a big wrench was thrown into my batch file. Comclean doesn't work with dvrms. So, now my plan is to set up a post processing batch that will convert to mpg, run comskip and comclean, then it would be nice if I could transcode that cleaned mpg to xvid.

I know that pvrx2 has the ability to convert to mpeg from the config screen (even though it hasn't worked for me), can I call that process in my batch file, or do I need another executable? If so, what do I call for in the batch?

Next, I just installed the xvid codec, but I don't see anything that looks like a converter to call there either. What do I call in the .bat to convert to xvid?

Thanks a lot!

[wtg]

If you look in config.xml you'll see the ffmpeg command line used by the auto conversion options. You can then take those command line and call ffmpeg yourself.

[dmporch]

is ffmpeg built into pvrx2, or do I need to download that separately?

[sub]

Its distributed with the app in the C:\Program Files\devnz\gbpvr\Third Party\FFmpeg directory.

[dmporch]

<!-- Post processing -->
<AutoConvertMpgToFormat>No Conversion</AutoConvertMpgToFormat>
<AutoConvertDvrmsToFormat>No Conversion</AutoConvertDvrmsToFormat>
<CommercialDetectionScheme>1</CommercialDetectionScheme>
<ProcessCommercialsDuringRecording>true</ProcessCommercialsDuringRecording>
<ConversionProcessingStartHour>1</ConversionProcessingStartHour>
<ConversionProcessingStopHour>6</ConversionProcessingStopHour>
<AutoDeleteConvertedFiles>false</AutoDeleteConvertedFiles>
<AutoUpdateDatabaseForConvertedFile>true</AutoUpdateDatabaseForConvertedFile>
<WakeMachineForConversionProcessing>false</WakeMachineForConversionProcessing>
<ShowVideoLibraryTranscodeButton>true</ShowVideoLibraryTranscodeButton>
<CustomFFmpegConversions>
<Conversion name="XviD" cmd="-y -i {SOURCE_FILE} -f avi -ab 224 -ac 2 -acodec mp3 -vcodec mpeg4 -b 1400 -vtag XVID {DEST_FILE}" targetExtension=".avi">-y -i {SOURCE_FILE} -f avi -ab 224 -ac 2 -acodec mp3 -vcodec mpeg4 -b 1400k -vtag XVID {DEST_FILE}</Conversion>
<Conversion name="DivX" cmd="-y -i {SOURCE_FILE} -f avi -ab 224 -ac 2 -acodec mp3 -vcodec mpeg4 -b 1400 -vtag DIVX {DEST_FILE}" targetExtension=".avi">-y -i {SOURCE_FILE} -f avi -ab 224 -ac 2 -acodec mp3 -vcodec mpeg4 -b 1400k -vtag DIVX {DEST_FILE}</Conversion>
<Conversion name="Video Ipod" cmd="-y -i {SOURCE_FILE} -title {TITLE_SUBTITLE} -f mp4 -vcodec mpeg4 -s 320x240 -r 15 {DEST_FILE}" targetExtension=".mp4" />
<Conversion name="Sony PSP" cmd="-y -i {SOURCE_FILE} -title {TITLE_SUBTITLE} -f psp -r 29.97 -s 368x208 -b 768 -ar 24000 -ab 32 {DEST_FILE}" targetExtension=".mp4">-y -i {SOURCE_FILE} -title {TITLE_SUBTITLE} -f psp -r 29.97 -s 368x208 -b 768k -ar 24000 -ab 32 {DEST_FILE}</Conversion>
<Conversion name="Mobile .3GP" cmd="-y -i {SOURCE_FILE} -acodec aac -vcodec mpeg4 -s qcif -aspect 4:3 -hq {DEST_FILE}" targetExtension=".3gp" />
<Conversion name="WMV-1200kb/s" cmd="-y -i {SOURCE_FILE} -vcodec wmv2 -b 1200 {DEST_FILE}" targetExtension=".wmv">-y -i {SOURCE_FILE} -vcodec wmv2 -b 1200k {DEST_FILE}</Conversion>
<Conversion name="WMV-700kb/s" cmd="-y -i {SOURCE_FILE} -vcodec wmv2 -b 700 {DEST_FILE}" targetExtension=".wmv">-y -i {SOURCE_FILE} -vcodec wmv2 -b 700k {DEST_FILE}</Conversion>
</CustomFFmpegConversions>

That's the section of the xml that talks about transcoding. and I see that it deals with FFmpeg, but I don't see where it calls the .exe and I don't know which part of this I should use in my postprocessing file, or what the syntax for it should be. Sorry, but I'm trying to learn about this stuff as best I can.

[sub]

If you want to tack some custom processing on the end of GB-PVR's automated conversion processing, then you can create a PostConversion.bat file with your custom commands.

Otherwise you can manually run ffmpeg.exe in your PostProcessing.bat file, passing command line parameters like those specified in the config.xml section you've posted above.

[dmporch]

This is what I want to do in post processing:

1. Convert dvr-ms to mpg
2. run comskip and comclean on new mpg
3. convert result of comclean into xvid

I'm pretty sure I can figure out how to get part 2 done, its parts 1 and 3 that I've got no clue on

Auto conversion never runs for me, so a PostConversion.bat wouldn't ever begin. Plus, I'd like to do this all in one nice PostProcessing.bat.

I don't know which are the "command line parameters" to pass or how to manually run ffmpeg. Do I need a line with ffmpeg.exe %1?

ugh... I wish an mpg mux would work for me, or that comclean would run on dvr-ms files...

[idkpmiller]

here is my line from postprocessing.bat:

"c:\Program Files\devnz\gbpvr\Third Party\ffmpeg\ffmpeg" -y -i %1 -f avi -ab 224 -ac 2 -acodec mp3 -deinterlace -vcodec xvid -qscale 5 -vtag xvid "%~dpn1.avi" targetExtension=".avi"

as you can see I have used the line from config.xml and changed the source and destn filenames to match the batch files syntax.

Cheers

[sgilani]

hmm.. but if we run ffmpeg ourselves in PostProcessing.bat, how can we update the file location in the database? i guess a nifty little script for sqlite3 to mess with recording_schedule in gbpvr.db3 would do the trick... but is that the best way to update the db?

[gEd]

I don't think there is any need to do this.

if the mpeg file is missing and gbpvr detects an avi with the same name, it will play that instead, without deleting the entry from the database (as normally happens with a missing recording).