[Jiaz]

@BillyCool, why not change preselection instead of changing it afterwards? JDownloader doesn't mux to mkv, just to mp4 for yt

[BillyCool]

Hi Jiaz,

Sorry for the late response, it's been a busy few days. Not entirely sure what you mean by preselection, both mp4 and mkv formats are available in the linkgrabber when adding links, and that's intentional. See for example:

If I was to download the 1080p 60fps, sometimes the mp4 container will be smaller in size, and sometimes the mkv will. I'm after a script that can compare the sizes and automatically pick the smallest size for me, without me having to click both to compare manually. Ideally, it should compare the highest resolutions available.

Hope that makes sense.

Thanks,
Billy

[Jiaz]

Sorry my misstake. Didn't knew that mkv was already live.
You can basically disable mkv container in Settings-Plugins-search for youtube as they contain the same streams as in mp4, just different container. there should be no *real* difference only due to different container

[BillyCool]

Hi Jiaz,

There is definitely a noticeable difference between the file sizes, one of the is encoded in H264 and the other is VP9. Even though it might be the same stream, the differences in the codecs result in variable sizes.

Yes, sometimes they're very close, but other times one can be much smaller than the other. In extreme cases, I've seen one being over twice the size of the other.

It's ok if this isn't something supported by the Event Scripter and/or API, it's only a small inconvenience. I just wanted to make sure because I didn't find anything myself, hence why I asked.

Thanks,
Billy

[Jiaz]

Yes, VP9 and H264 is difference in size/quality. Basically you would need to combine two steps. Step one, add highest mkv and mp4 quality and step two, a script that checks for same name , different extension and then choose one/delete the other. You can ask mgpai for help with script though I would just stick to vp9 version (webm and mkv)

[mgpai]

@BillyCool:

VP9 is a a more efficient codec than H.264 and can deliver the same video quality as H.264, at half the size. Hence it will always be (based on my experience) less than it's H.264 variant in size. Instead of adding both the variants, you can adjust the yt parameters (advanced settings) in JD, and get the best variant based on your preferences. If you choose to add only one variant in JD, it will prefer H.264 over VP9, because of default yt video codec quality sort order. Change it to:

[ "VP9_BETTER_PROFILE_1", "VP9_BETTER_PROFILE_2", "VP9", "VP9_WORSE_PROFILE_1","H264",  "H263", "VP8", "VP9_HDR" ]

If you now choose to add only one (best) variant, VP9 will selected (wherever available) over H.264. You will thus always automatically end up with a single variant of your choice, which otherwise you would have picked manually. There are other yt parameters (search "Youtube: Quality Sort Identifier" in advanced settings) which also influence the variant auto selected by JD. You can tweak those settings further to fine tune your preferred variant.

[Tom]

may i ask for an request? dont know if its easy possible.
convert MKV with DTS to MKV with AC3.
i am using one click tool mkv2ac3 but it would be nice if the same can be done after download is finished with JD2 and automated :-D

to do:
check if filename it contains DTS or check MKV for DTS file (german)
extract MKV
convert DTS to ac3
merge video and AC3 to MKV

[mgpai]

Originally Posted by Tom

... convert MKV with DTS to MKV with AC3 ...

You can use ffprobe to check if the stream contains DTS and then re-build (extract/convert/merge) in a single step using ffmpeg. You should be able to find both programs in JD.

If you figure out the external commands (able to do it in CLI), I can help you put them in the script. Contact me in JD Chat if you need more information.

[Tom]

oh jesus, ffmpeg is also faster then mkv2ac3.
thx a lot for the hint mgpai !

edit:
script created via chat, will test tomorrow

[mgpai]

Originally Posted by Tom

... convert MKV with DTS to MKV with AC3 ...

github.com/mgpai/resources/blob/master/jdownloader/eventscripter/scripts/Tom.js

[Tom]

i did a test but it doesnt work, is the new method already ready @Jiaz?

[Jiaz]

@Tom: Yes, it's already live. But it would be good to have more feedback about what doesn't work

[Tom]

nothing happens, tried again
logs:
24.07.18 12.03.50 <--> 24.07.18 12.33.24 jdlog://1022164433151/

[Jiaz]

ffmpeg und ffprobe ist installiert?

[Tom]

ja beides unter tools

[mgpai]

Originally Posted by Tom

nothing happens, tried again

Script is working fine. Check if you are able to convert that file using the same ffmpeg parameters in CLI. If you need any help troubleshooting you can find me in JD Chat for the next couple of hours.

[Tom]

works stunning, thx a lot for the great support and maybe i find a new challenge

hello scripter
i am looking for a solution to create a dlc per package from the download list in JD2
actually one have to click on every single package an choose create dlc or
mark all packages and choose create dlc.
the goal is to mark some packages and choose create dlc per package...

[Araldo]

Just for info: After years of JD usage today I stumpled over event scripter and wanted to try it. Downloaded and activated it but the edit script button didn't work. Just opened a small windows for a tenth of a second, immediately closed it so you can't even read any text and nothing more.

Found out that it's because I renamed the "jre" folder of JD2, so JD2 uses system wide Java 10.0.2 x64. Everything works fine with Java 10 for a long time here on a Win2012R2 system. When I rename back the jre folder so JD2 uses its own Java 8 the script editor works. So this is the first piece of JD2 that doesn't work with Java 10 here.

Not a problem for me as I just tried to play a bit with event scripter. Just an information that there could be some incompatibility with newer Java versions. Didn't try yet if scripts added with Java 8 later work when switching back to Java 10.

[Jiaz]

@Araldo: will be fixed with next update.
support for Java9,10,11 is experimental. It's a compatibility issue between java8 and java10