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Emby android resorts to transcoding without giving any reason why


nishwahareesh

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nishwahareesh

Before I start, I'll explain what I mean by "without giving any reason why"

usually when it starts to transcode, it would give a reason why like this (check the blue circling)

533003109_onepiece.PNG.09909c9b5e09eb961da3c5b86c1982f2.PNG

Note:- I've forcefully made this video to transcode in the above picture by reducing the bitrate so that is not a bug 

 

but in this case, it doesn't

755286061_akunohana.PNG.ac029c494d8ec870d97763101b202adf.PNG

this could be a bug so I'm just reporting that

Now, I have no clue as to why this video transcodes while other videos with the same format doesn't. It's definitely not the subtitles or the audio because I've reencoded the video to HEVC and the audio and subtitle plays directly.

Here's the logs

ffmpeg-transcode-f5e334ff-98b7-4cd7-85d5-aeab259c3705_1.txt

 

Here's the media info

mediainfo.txt

 

And here's the sample video

Flowers of Evil - S01E01 - Flowers of Evil 1 of 13 (1)-001.mkv

 

Ran with galaxy s10 on Emby android 3.1.94

 

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vdatanet

In my opinion, subtitles are the transcode reason:

09:06:13.363 [subtitles@f2 @ 0000026b351ec100] Shaper: FriBidi 1.0.5 (SIMPLE) HarfBuzz-ng 2.6.1 (COMPLEX)
09:06:13.373 [subtitles@f2 @ 0000026b351ec100] Loading font file 'C:\Users\nishw\AppData\Roaming\Emby-Server\programdata\fonts/DroidSansFallback.ttf'
09:06:13.382 [subtitles@f2 @ 0000026b351ec100] Using font provider directwrite
09:06:14.397 Stream mapping:
09:06:14.397   Stream #0:0 (h264) -> format (graph 0)
09:06:14.397   subtitles (graph 0) -> Stream #0:0 (h264_nvenc)
09:06:14.397   Stream #0:1 -> #0:1 (flac (native) -> aac (native))

 

Edited by vdatanet
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nishwahareesh
2 hours ago, vdatanet said:

In my opinion, subtitles are the transcode reason:


09:06:13.363 [subtitles@f2 @ 0000026b351ec100] Shaper: FriBidi 1.0.5 (SIMPLE) HarfBuzz-ng 2.6.1 (COMPLEX)
09:06:13.373 [subtitles@f2 @ 0000026b351ec100] Loading font file 'C:\Users\nishw\AppData\Roaming\Emby-Server\programdata\fonts/DroidSansFallback.ttf'
09:06:13.382 [subtitles@f2 @ 0000026b351ec100] Using font provider directwrite
09:06:14.397 Stream mapping:
09:06:14.397   Stream #0:0 (h264) -> format (graph 0)
09:06:14.397   subtitles (graph 0) -> Stream #0:0 (h264_nvenc)
09:06:14.397   Stream #0:1 -> #0:1 (flac (native) -> aac (native))

 

definitely not the subtitles because it direct played in a HEVC video 

Screenshot_20210511-121550_Emby.thumb.jpg.6969a1d298eb08285efe864fa42101c7.jpg

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vdatanet

Just for testing, If you deactivate subtitles, what happens? it keeps transcoding?

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nishwahareesh
1 hour ago, vdatanet said:

Just for testing, If you deactivate subtitles, what happens? it keeps transcoding?

Yes it does. I should've mentioned that.

Edited by nishwahareesh
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vdatanet

It's strange. I've downloaded the sample and I get direct play in my Samsung S10

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nishwahareesh
2 hours ago, vdatanet said:

It's strange. I've downloaded the sample and I get direct play in my Samsung S10

Odd. Mine just resorts to transcoding despite having the capabilities of running it. 

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nishwahareesh
5 hours ago, vdatanet said:

Just for testing, If you deactivate subtitles, what happens? it keeps transcoding?

Correction

Video direct plays but audio is transcoded. Odd. S10 has FLAC support 

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vdatanet
40 minutes ago, nishwahareesh said:

Correction

Video direct plays but audio is transcoded. Odd. S10 has FLAC support 

If remuxing is required, ASS subtitles require full transcoding. It's odd, my Samsung S10 direct plays that content.

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nishwahareesh
27 minutes ago, vdatanet said:

If remuxing is required, ASS subtitles require full transcoding. It's odd, my Samsung S10 direct plays that content.

its fine. I'll just mux in the EAC3 audio into the original source. Since FLAC is a waste of space anyways. Thanks for the help. 

Edited by nishwahareesh
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nishwahareesh
16 hours ago, vdatanet said:

If remuxing is required, ASS subtitles require full transcoding. It's odd, my Samsung S10 direct plays that content.

I found the solution and its a weird one. Remuxing the original video with mkvtoolnix fixes it. This is probably due to the FLAC metadata not properly written. So it's the audio's fault and not the media player. 

Edited by nishwahareesh
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