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can kmttg "trim" that is start and stop transfer as MP4

Discussion in 'TiVo Home Media Features & TiVoToGo' started by BigOldArt, Dec 25, 2020.

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  1. Dec 25, 2020 #1 of 11
    BigOldArt

    BigOldArt New Member

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    Jun 12, 2014

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    It appears that kmttg will download the "tail" of a show if I pause viewing on the Tivo Roamio.

    Is there a way in kmttg to just download from minute 12:20 to minute 17:10?
     
  2. Dec 25, 2020 #2 of 11
    ThAbtO

    ThAbtO TiVoholic by the bay TCF Club

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    No. It does not know that. You can trim it yourself if you are a Windows user with VideoReDo. You can do stuff like remove commercials.
     
  3. Dec 26, 2020 #3 of 11
    MHunter1

    MHunter1 TiVo Bug Hunter

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    It sounds like you're trying to save time by not waiting for the entire program to finish downloading. You can monitor the progress bar and manually stop the download when you estimate it has reached the desired end point without deleting the file. But it's still best to use VideoReDo to clean up the start and end.
     
  4. Dec 26, 2020 #4 of 11
    BigOldArt

    BigOldArt New Member

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    Thank you.
    I was wrong about the start time being set. If the goal is to have an MP4, TS must be checked, and that disallows setting a start.

    Once I have the whole show in mp4, it is trivial to use windows Photo to trim it and put in title cards naming the source, adding notes, etc.

    I was hoping to download and encode only part of a show. Yesterday I recorded news on my Tivo. Today near the end of the hour there was a brief piece on a friend's father who had died. She had not seen it so I wanted to send a video clip.

    It would be a nice feature if it were not necessary to do all the download and encoding processing when 90%+ of the MP4 would be trimmed off.
     
  5. Dec 26, 2020 #5 of 11
    justen_m

    justen_m Cheesehead TCF Club

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    Just download and decrypt the whole thing, that's relatively fast. Trim the mpg. Then convert the small mpg to mp4. mpg->mp4 is the slow part of the process. It would be simpler if you could just mark a small portion for download, but definitely do the trimming before the mpg->mp4 transcoding.
     
  6. Dec 26, 2020 #6 of 11
    BigOldArt

    BigOldArt New Member

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    thank you.
    So your suggestion is to use kmttg to get the MPG file.
    Would I need special software to trim the mpg? I routinely trim mp4s with Windows Photos so I can mix videos, title cards, and stills in a new video. This afternoon, I'll try trimming the mpg with Photos to see if it does it.
    Would I then use kmttg to encode the trimmed mpg to mp4?
     
  7. Dec 26, 2020 #7 of 11
    justen_m

    justen_m Cheesehead TCF Club

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    Yes, kmttg to get the mpg (download and decrypt). I don't think Photos works with mpg. You need to download a free mpg editor for Win10, like Kdenlive | Libre Video Editor or OpenShot Video Editor | Free, Open, and Award-Winning Video Editor for Linux, Mac, and Windows!, both are open source and free for Win, Linux, Mac, etc. You can then use kmttg to transcode the mpg to mp4. Technically, you don't need kmttg itself, just ffmpeg (which is in the kmttg directory, and installed with and used by kmttg).

    Admittedly, I've never done what I've described. ;) It is the approach I would take. However, if you're just talking about a 30-35 minute local news show, maybe just transcode the whole thing to mp4 and use Photos, if the more comfortable and familiar work flow is worth the longer time and extra cpu cycles.
     
  8. Dec 26, 2020 #8 of 11
    BigOldArt

    BigOldArt New Member

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    Thank you
    The mp4 has finished encoding so I'll use that.
    But, I'll keep a note about your suggestions if a similar situation arises.
     
  9. Dec 26, 2020 #9 of 11
    BigOldArt

    BigOldArt New Member

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    I tried out a couple of short shows and they took a long time but ended up with MP4s.
    I then downloaded New Day for practice. It ended up with no audio, but I did not change the settings. Screenshot of kmttg.jpg
     
  10. Dec 26, 2020 #10 of 11
    BigOldArt

    BigOldArt New Member

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    A surprise. A TS file was left. Opening it with Movie Maker and clicking <save movie> resulted in an MP4 that I could work with.

    I leave all this detail because in another context I find it useful to search a forum archive that goes back to 1996. Perhaps other forum members will benefit from this conversation.
     
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  11. Dec 26, 2020 #11 of 11
    ThAbtO

    ThAbtO TiVoholic by the bay TCF Club

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    This not a goal,but rather IF the show was recorded in MPEG4, then it MUST be downloaded by TS. After KMTTG decrypted, it becomes a .TS file. It can be played similar to a MP4.
     

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