Subtitles not showing up | ErsatzTV | Page 1

spring sentinel Jun 2, 2023, 8:42 AM

#

Version:0.7.8-ddb7e188-docker-arm
Raspberry pi 4

Stream method : HLS direct

Source : jellyfin

Player:mpv and potplayer on windows, ott navigator on android.
Subtitles are already embedded in the shows.

Video type: both X265 and x264 videos don't play subtitles.

I can toggle subtitles on and off through any media players. So subtitle is present inside the file itself.

But its not showing up on channels. I tried different subtitle modes but none work.

Please help.

spring sentinel Jun 2, 2023, 11:28 AM

#

spring sentinel Version:0.7.8-ddb7e188-docker-arm Raspberry pi 4 Stream method : HLS direct So...

@azure barn sorry for the ping

azure barn Jun 2, 2023, 1:41 PM

#

paste the ffmpeg arguments from the log

spring sentinel Jun 2, 2023, 2:41 PM

#

Forcing 1 ffmpeg thread due to buggy combination of stream seek and realtime output

#

ffmpeg arguments -threads 1 -nostdin -hide_banner -nostats -loglevel error -fflags +genpts+discardcorrupt+igndts -ss 00:04:50.9923260 -re -i http://localhost:8409/media/jellyfin/28b544a492da583b746e47b633bab596 -map 0:a -map 0:0 -muxdelay 0 -muxpreload 0 -movflags +faststart -flags cgop -sc_threshold 0 -t 00:16:29.1198020 -c:v copy -c:a copy -metadata "service_provider="ErsatzTV"" -metadata "service_name="bigbangtheory1"" -f mpegts -mpegts_flags +initial_discontinuity pipe:1

#

azure barn Jun 2, 2023, 2:42 PM

#

ok, you need to enable subtitles on the channel

spring sentinel Jun 2, 2023, 2:43 PM

#

azure barn ok, you need to enable subtitles on the channel

i did that too. this log is just a new channel that i created i forgot to enable

#

i will enable and send another log

#

#

Forcing 1 ffmpeg thread due to buggy combination of stream seek and realtime output

#

ffmpeg arguments -threads 1 -nostdin -hide_banner -nostats -loglevel error -fflags +genpts+discardcorrupt+igndts -ss 00:11:55.2846440 -re -i http://localhost:8409/media/jellyfin/28b544a492da583b746e47b633bab596 -map 0:a -map 0:0 -muxdelay 0 -muxpreload 0 -movflags +faststart -flags cgop -sc_threshold 0 -t 00:09:24.8274840 -c:v copy -c:a copy -metadata "service_provider="ErsatzTV"" -metadata "service_name="bigbangtheory1"" -f mpegts -mpegts_flags +initial_discontinuity pipe:1

#

i also tried any and forced.

#

azure barn Jun 2, 2023, 2:48 PM

#

enable debug logs and try again, it should give some info about which subtitles it finds/selects

spring sentinel Jun 2, 2023, 2:54 PM

#

Channel 4 is HLS Direct with no preferred audio language or title; using all audio streams

#

FFmpeg desired state FrameState { Realtime = True, InfiniteLoop = False, VideoFormat = copy, VideoProfile = Some(main 10), PixelFormat = None, ScaledSize = FrameSize { Width = 1920, Height = 1080 }, PaddedSize = FrameSize { Width = 1920, Height = 1080 }, IsAnamorphic = False, FrameRate = None, VideoBitrate = None, VideoBufferSize = None, VideoTrackTimeScale = None, Deinterlaced = False, FrameDataLocation = Unknown, FFmpegAspectRatio = 16/9, BitDepth = 8 }

#

Forcing 1 ffmpeg thread due to buggy combination of stream seek and realtime output

#

FFmpeg pipeline ["ThreadCountOption","NoStandardInputOption","HideBannerOption","NoStatsOption","LoglevelErrorOption","StandardFormatFlags","NoDemuxDecodeDelayOutputOption","FastStartOutputOption","ClosedGopOutputOption","NoSceneDetectOutputOption","TimeLimitOutputOption","EncoderCopyVideo","EncoderCopyAudio","MetadataServiceProviderOutputOption","MetadataServiceNameOutputOption","OutputFormatMpegTs","PipeProtocol","ComplexFilter"], [], ["EncoderCopyVideo"]

#

ffmpeg arguments -threads 1 -nostdin -hide_banner -nostats -loglevel error -fflags +genpts+discardcorrupt+igndts -ss 00:10:04.3423631 -re -i http://localhost:8409/media/jellyfin/55ad8a43ad27385d8938c25d68408b06 -map 0:a -map 0:0 -muxdelay 0 -muxpreload 0 -movflags +faststart -flags cgop -sc_threshold 0 -t 00:11:36.0075889 -c:v copy -c:a copy -metadata "service_provider="ErsatzTV"" -metadata "service_name="modern family test"" -f mpegts -mpegts_flags +initial_discontinuity pipe:1

azure barn Jun 2, 2023, 2:55 PM

#

i see some bugs with subtitles and hls direct, working on a fix

spring sentinel Jun 2, 2023, 2:55 PM

#

azure barn i see some bugs with subtitles and hls direct, working on a fix

thank you so much.

azure barn Jun 2, 2023, 4:47 PM

#

this may not be possible - hls direct uses mpeg-ts streaming format/container which doesn't appear to support many subtitle codecs, so lots of stuff "copied" in becomes unplayable. it looks like it only supports dvbsub and dvbteletext

#

ill see if there's another container i can use instead of mpeg-ts for hls direct

#

might be able to get mp4 to work

#

eh, marginally better. doesn't support ASS subtitles though

#

hls direct is already a hack, so maybe i can use an against-the-spec container (matroska)

#

i think i'll have to stick with mp4 and filter out/ignore streams that use unsupported codecs

spring sentinel Jun 3, 2023, 1:56 AM

#

azure barn i think i'll have to stick with mp4 and filter out/ignore streams that use unsup...

Isn't there any other way? Because i use smb to stream mkv and mp4 and other formats it supports subtitles

spring sentinel Jun 3, 2023, 1:57 AM

#

azure barn i think i'll have to stick with mp4 and filter out/ignore streams that use unsup...

Pi 4 is great at direct streaming even 4k files. Its just not capable of transcoding.

spring sentinel Jun 3, 2023, 2:11 AM

#

azure barn i think i'll have to stick with mp4 and filter out/ignore streams that use unsup...

What do you mean by this? Please don't change it in a way it will not stream mkv videos.

spring sentinel Jun 3, 2023, 2:25 AM

#

azure barn i think i'll have to stick with mp4 and filter out/ignore streams that use unsup...

If I have to choose between playing video without subtitles vs not playing video at all. I prefer playing videos. So please don't change it to filter out streams that can't play subtitles

#

Can you just extract the embedded srt file and convert them into webvtt using ffmpeg and then just serve it with video(m3u8 or something)?

#

I'm pretty sure pi 4 can easily handle converting srt into webvtt using ffmpeg.

spring sentinel Jun 3, 2023, 2:53 AM

#

i sent you a dm

azure barn Jun 3, 2023, 11:43 AM

#

The streaming mode is hls direct. Hls spec only allows TS and MP4 containers, so all content is transmuxed to TS currently (not transcoded, very low overhead)

#

Switching to MP4 would allow more (but not all) codecs to be supported

#

The source container is irrelevant

azure barn Jun 4, 2023, 6:45 PM

#

i switched the output container to MP4, which will allow for more subtitle codecs to be used. right now, dvd subs/vobsubs are the only ones that are stream copied. text (and pgs) subtitles are currently ignored, but i'm working on transcoding text subtitles to a compatible format.

spring sentinel Jun 4, 2023, 6:46 PM

#

azure barn i switched the output container to MP4, which will allow for more subtitle codec...

subtitles are so important for many people, so thanks for working on fixing it 🙂

azure barn Jun 4, 2023, 6:57 PM

#

which client are you using with hls direct?

spring sentinel Jun 4, 2023, 6:59 PM

#

azure barn which client are you using with hls direct?

Player:mpv and potplayer on windows, ott navigator on android.

#

potplayer is better compared to barebone mpv though

azure barn Jun 4, 2023, 7:08 PM

#

ok, interesting. i know with mpv the easy answer is to stream using mkv container (not within hls spec but supports many more codecs/doesn't require transcoding subtitles). will see if the other ones support that, too

spring sentinel Jun 4, 2023, 7:09 PM

#

potplayer is extremely customizable and feature packed, you can tune it so many ways to your liking.

#

it supports all video formats. atleast it never failed me once

distant flare Jun 4, 2023, 7:24 PM

#

I pull not my money on MPEG-TS for this

spring sentinel Jun 4, 2023, 7:27 PM

#

distant flare I pull not my money on MPEG-TS for this

what

distant flare Jun 4, 2023, 7:29 PM

#

i tank about the mkv contaner

spring sentinel Jun 4, 2023, 7:30 PM

#

distant flare i tank about the mkv contaner

tank?

distant flare Jun 4, 2023, 7:35 PM

#

talk

#

sorry for the typo

spring sentinel Jun 4, 2023, 7:36 PM

#

so what are you saying

distant flare Jun 4, 2023, 7:37 PM

#

I think that mkv over mpeg-ts is not working but i am all in for HLS/HLS segment

azure barn Jun 5, 2023, 11:34 AM

#

mpv and potplayer work fine with hls direct using mkv output container. will check ott navigator. tivimate works if you use the mpv android player, too.

spring sentinel Jun 5, 2023, 7:58 PM

#

azure barn mpv and potplayer work fine with hls direct using mkv output container. will che...

Is this new fix?

azure barn Jun 5, 2023, 7:59 PM

#

no it's not released yet, i'm testing

spring sentinel Jun 5, 2023, 7:59 PM

#

azure barn no it's not released yet, i'm testing

Alright thank you so much 🙂

azure barn Jun 6, 2023, 3:40 PM

#

ok, latest develop build has a new global option to use mkv output format with hls direct (in Settings page)

#

if a subtitle stream is selected (based on language/mode configured on channel), it will be copied with mkv output format

spring sentinel Jun 8, 2023, 1:12 PM

#

which one has fix for the subtitles?

#

i am guessing second one. but then whats the difference with these two? both released 2 days ago.

spring sentinel Jun 8, 2023, 2:05 PM

#

alright i went with the first one, subtitles are working now. thank you so much for the fix.

#

for some reason it didnt work at first kept buffering for so long but then i went to settings and changed it from mp4 to mkv and then it worked

#

its flawless now.

azure barn Jun 8, 2023, 2:07 PM

#

if you look at the digest they are the same image, just different tags

#

one points to a specific commit (147...), one will change with the next commit (develop-arm)

spring sentinel Jun 8, 2023, 2:10 PM

#

thanks for the fix. should i close the post now?

spring sentinel Jun 15, 2023, 3:58 PM

#

i am sorry to reopen this thread. the new update that you pushed fixed playback with subtitles on both mpv and potplayer on pc. it worked flawlessly

#

but when i test with firetv both tivimate and ott navigator doesnt play in both mp4 and mkv global settings.

#

so i tested with vlc that didnt work. then i installed mpv on firetv using github release apk. that worked(as an external player) but the problem is the channel with subtitles was extremely laggy and not a good experience

#

so i think firetv is just not capable of this codec. so i installed previous version on another port and tested and atleast videos are playing on native client.

#

so i am not asking remove this new hacky mkv codec. but please add the previous method also. firetv compatibility is important and previous method works on that

#

lets not remove new method also. that works flawlessy on pc. lets keep both as an option in settings.

azure barn Jun 15, 2023, 4:04 PM

#

it's a global setting so it affects all channels/clients. i'll think about a way to configure/override the container (mpeg-ts, mp4, mkv) per client

spring sentinel Jun 15, 2023, 4:06 PM

#

azure barn it's a global setting so it affects all channels/clients. i'll think about a way...

yeah thanks. right now i am running two versions one that uses new hacky codec. it works flawlessly on pc. and the old version on a different port for fire tv. (although modern family tv show kinda buffers a lot but plays atleast) other shows plays great on firetv

#Subtitles not showing up