Some media won't play

init5 · December 21, 2023 at 7:01 PM

Today I moved from OpenElec to LibreElec. Installed from scratch on a cubox-i using the latest nightly build (LibreELEC-iMX6.arm-12.0-nightly-20231219-865d980-cubox.img.gz) for iMX6 for v12 from here.

The problem I have now is that some videos are not playing at all. Others are working fine.

LibreElec seems to simply restart after the loading circle is shown for some seconds. Recently on OpenElec I was able to play the files. So hardware should not be the problem I guess.

Codec info from one example:

Here's the crashlog: https://drive.google.com/file/d/11a0EEV…iew?usp=sharing

The relevant video is played in line 867 but I do not see any relevant or useful info why the system is stopping and restarting.

Code

2023-12-21 18:10:14.021 T:931      info <general>: VideoPlayer::OpenFile: nfs://x.x.x.x/volume1/video/Movies/Wedding 2017 - HD.mkv
2023-12-21 18:10:14.027 T:1013     info <general>: Creating InputStream
2023-12-21 18:10:14.408 T:1013     info <general>: Creating Demuxer
2023-12-21 18:10:16.000 T:1018     info <general>: CDVDVideoCodecFFmpeg::Open() Using codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
2023-12-21 18:10:17.470 T:1013     info <general>: Skipped 1 duplicate messages..
2023-12-21 18:10:17.470 T:1013     info <general>: Opening stream: 0 source: 256
2023-12-21 18:10:17.473 T:1013     info <general>: [WHITELIST] Searching the whitelist for: width: 1920, height: 804, fps: 23.976, 3D: false
2023-12-21 18:10:17.475 T:1013     info <general>: Display resolution ADJUST : 1920x1080 @ 23.976025 Hz (27) (weight: 0.000)
2023-12-21 18:10:17.484 T:931      info <general>: VideoPlayer: OnLostDisplay received
2023-12-21 18:10:17.484 T:931   warning <general>: CDVDMessageQueue(audio)::Put MSGQ_NOT_INITIALIZED
2023-12-21 18:10:17.484 T:931   warning <general>: CDVDMessageQueue(video)::Put MSGQ_NOT_INITIALIZED
2023-12-21 18:10:17.485 T:931      info <general>: GLES: Maximum texture width: 8192
2023-12-21 18:10:17.590 T:1013     info <general>: Creating video codec with codec id: 27
2023-12-21 18:10:17.591 T:1013     info <general>: CDVDVideoCodecDRMPRIME::Open - using decoder V4L2 mem2mem H.264 decoder wrapper
2023-12-21 18:10:17.847 T:1013     info <general>: Creating video thread
2023-12-21 18:10:17.848 T:1021     info <general>: running thread: video_thread
2023-12-21 18:10:17.849 T:1013     info <general>: Opening stream: 1 source: 256
2023-12-21 18:10:17.850 T:1013     info <general>: Finding audio codec for: 86020
2023-12-21 18:10:17.852 T:1013     info <general>: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder dca
2023-12-21 18:10:17.852 T:1013     info <general>: OpenStream: Allowing max Out-Of-Sync Value of 10 ms
2023-12-21 18:10:17.852 T:1013     info <general>: Creating audio thread
2023-12-21 18:10:17.859 T:1022     info <general>: running thread: CVideoPlayerAudio::Process()
2023-12-21 18:10:17.859 T:1013     info <general>: Opening stream: 3 source: 256
2023-12-21 18:10:17.860 T:1013     info <general>: CDVDSubtitlesLibass: Using libass version 1701000
2023-12-21 18:10:17.860 T:1013     info <general>: CDVDSubtitlesLibass: Creating ASS library structure
2023-12-21 18:10:17.860 T:1013     info <general>: CDVDSubtitlesLibass: Initializing ASS Renderer
2023-12-21 18:10:17.867 T:1013     info <general>: CDVDSubtitlesLibass: Initializing ASS library font settings
2023-12-21 18:10:18.012 T:931      info <general>: VideoPlayer: OnResetDisplay received

############### END LOG FILE ################

############ END kodi CRASH LOG #############

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Any chance to have LibreElec running smoothly on a cubox-i?

This also seems to be the first post for cubox here in this forum area.

miguel.yarza · September 17, 2024 at 1:22 PM

Hi Init5,

same case here cubox-i 4x4 with last week's nightly (tried with 12 and 13), my crashlog is identical, SIGSEGV in libavcodec:

Code

Program terminated with signal SIGSEGV, Segmentation fault.
#0  0xb581a974 in ?? () from /usr/lib/libavcodec.so.60

and subtitle library initializing in log's last lines:

Code

2023-12-21 18:10:17.860 T:1013     info <general>: CDVDSubtitlesLibass: Using libass version 1701000
2023-12-21 18:10:17.860 T:1013     info <general>: CDVDSubtitlesLibass: Creating ASS library structure
2023-12-21 18:10:17.860 T:1013     info <general>: CDVDSubtitlesLibass: Initializing ASS Renderer
2023-12-21 18:10:17.867 T:1013     info <general>: CDVDSubtitlesLibass: Initializing ASS library font settings

I have narrowed down to file integrated subtitles in the .mkv file with hardware acceleration enabled.

If I play the .mkv file with integrated subtitles and DRM PRIME disabled => video plays fine
If I play the .mkv file with integratedsubtitles and DRM PRIME enabled => SIGSEGV crash.
If I remove subtitles from the .mkv file with mkvmerge -o output.mkv --no-subtitles input.mkv and DRM PRIME enabled => video plays fine.

I'm a little bit lost about next steps for fixing the problem.

Kind regards,

Miguel

**Da Flex** · September 18, 2024 at 11:43 PM

Quote from miguel.yarza

If I play the .mkv file with integrated subtitles and DRM PRIME enabled => SIGSEGV crash.
If I remove subtitles from the .mkv file with mkvmerge -o output.mkv --no-subtitles input.mkv and DRM PRIME enabled => video plays fine.

Then it's a bug at mkvmerge or DRM Prime. The DRM Prime error should be visible somewhere at kodi.log.

Please provide a full debug log.

How to post a log (wiki)

1. Enable debugging in Settings>System Settings>Logging
2. Restart Kodi
3. Replicate the problem
4. Generate a log URL (do not post/upload logs to the forum)

use "Settings > LibreELEC > System > Paste system logs" or run "pastekodi" over SSH, then post the URL link

miguel.yarza · September 19, 2024 at 10:24 PM

Hi Da Flex, thank you for your guidance!

With DRM Prime enabled I have played the original file "Amelie.mkv", it has 4 streams:

Stream 0 video
Stream 1 spanish audio
Stream 2 french audio
Stream 3 subtitles

It crashes on play, this is the crash log from original file: https://paste.libreelec.tv/needed-mutt.log

Then I have created "Amelie_no_subs.mkv" file with the following command:

mkvmerge -o Amelie_no_subs.mkv --no-subtitles Amelie.mkv

This file only has 3 streams:

Stream 0 video
Stream 1 spanish audio
Stream 2 french audio

No subtitles.

This file plays fine, this is the play log: https://paste.libreelec.tv/welcome-viper.log

The video played fine for 5 minutes and then I stopped it, you can see the log playing between OpenFile and CloseFile:

Code

2024-09-19 22:45:22.067 T:1081     info <general>: VideoPlayer::OpenFile: /storage/videos/Amelie_no_subs.mkv
2024-09-19 22:50:19.200 T:1081     info <general>: CVideoPlayer::CloseFile()

I have tried to compare both logs looking for the crash reason but I'm afraid it is beyond my knowledge, can you take a look at it?

**Da Flex** · September 20, 2024 at 12:54 AM

Hmm, pretty much the same errors at both logs. I'm not familiar with NXP hardware. Search for cache settings (GUI or advancedsettings.xml), and increase values. Maybe the video needs too much cache with subtitles.

Some media won't play

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