# PMS transcoding h264 broken on DS920+

**URL:** <https://forums.plex.tv/t/pms-transcoding-h264-broken-on-ds920/905568>\
**Category:** Plex Media Server\
**Tags:** server-synology\
**Created:** [February 14, 2025, 8:05pm UTC](https://forums.plex.tv/t/pms-transcoding-h264-broken-on-ds920/905568 "2025-02-14T20:05:45Z")\
**Posts on this page:** 1\
**Showing post:** 125

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**Author:** ![Atomatth](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/atomatth/32/314355_2.png) [@Atomatth](https://forums.plex.tv/u/Atomatth)\
**Post date:** [February 18, 2025, 7:19pm UTC](https://forums.plex.tv/t/pms-transcoding-h264-broken-on-ds920/905568/125 "2025-02-18T19:19:02Z")

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Linking another thread around the same issue: [A required codec could not be found or failed to install](https://forums.plex.tv/t/a-required-codec-could-not-be-found-or-failed-to-install/905580). There are some manual steps included in the thread above and post above in this very thread.

> [@InvicTech](#):
>
> For anyone else trying to make it work. I manually downloaded all the linux\_x86\_64 codecs and then put them in the folder “Codecs/e613bce-97f23d579c1001d8e9cc0d2e-linux-x86\_64”. Seems to have done the trick…
> 
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libaac\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libaac_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libaac\_encoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libaac_encoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libac3\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libac3_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libac3\_encoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libac3_encoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libdca\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libdca_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libh264\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libh264_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libhevc\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libhevc_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/liblibx264\_encoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/liblibx264_encoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libmp2\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libmp2_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libmp3\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libmp3_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libmpeg2video\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libmpeg2video_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libmpeg4\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libmpeg4_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libmsmpeg4v3\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libmsmpeg4v3_decoder.so)  
> [https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86\_64-standard/libvp9\_decoder.so](https://downloads.plex.tv/codecs/e613bce-97f23d579c1001d8e9cc0d2e/linux-x86_64-standard/libvp9_decoder.so)

Looks like we are encountering a similar issue we saw late Friday night. Our build and backend teams are investigating and working on a solution. I’ll try to provide updates when I can. Thank you for your patience and sorry for the frustration.

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_[View the full topic](https://forums.plex.tv/t/pms-transcoding-h264-broken-on-ds920/905568)._