Autosplit Output gives unexepected results #91005

New Issue

Hugo Schouppe · 2021-08-28T10:30:00+02:00

Hugo Schouppe commented

2021-08-28 10:30:00 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 466.77

Blender Version
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-08-20 06:37, hash: cea24b4b4a
Worked: (newest version of Blender that worked as expected)

Short description of error
The Autosplit Output option in Output Properties > Output > Encoding should split the rendered output at 2GB boundary.
The resulting parts (starting from the second one) have missing video (in the VLC player; audio seems OK) or missing audio in the MPV player (video seems OK).

Exact steps for others to reproduce the error

Import a large video; for example the 6.27 GB open movie Tears of Steel (to download http://ftp.nluug.nl/pub/graphics/blender/demo/movies/ToS/)
Render it with a format that creates a file > 2GB. For example: MPEG-4, lossless with keyframe interval = 0.
For this demo, it creates 10 parts (_000xxx.mp4, _001xxx.mp4, ...) each of about 1.9 GB; except the last one which is smaller.
Play the second or higher parts with VLC player. The video at the beginning of the file is missing; the audio seems OK.
Play the 6th or 7th part with the MPV player. The video seems OK but the audio is missing or not synchronized.

Blend-file attached
autosplit.blend

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 466.77 **Blender Version** Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-08-20 06:37, hash: `cea24b4b4a` Worked: (newest version of Blender that worked as expected) **Short description of error** The Autosplit Output option in Output Properties > Output > Encoding should split the rendered output at 2GB boundary. The resulting parts (starting from the second one) have missing video (in the VLC player; audio seems OK) or missing audio in the MPV player (video seems OK). **Exact steps for others to reproduce the error** - Import a large video; for example the 6.27 GB open movie Tears of Steel (to download http://ftp.nluug.nl/pub/graphics/blender/demo/movies/ToS/) - Render it with a format that creates a file > 2GB. For example: MPEG-4, lossless with keyframe interval = 0. - For this demo, it creates 10 parts (_000xxx.mp4, _001xxx.mp4, ...) each of about 1.9 GB; except the last one which is smaller. - Play the second or higher parts with VLC player. The video at the beginning of the file is missing; the audio seems OK. - Play the 6th or 7th part with the MPV player. The video seems OK but the audio is missing or not synchronized. Blend-file attached [autosplit.blend](https://archive.blender.org/developer/F10340093/autosplit.blend)

Hugo Schouppe commented

2021-08-28 10:30:00 +02:00

Added subscriber: @HUSCH

Raimund Klink commented

2021-08-28 11:38:39 +02:00

Added subscriber: @Raimund58

Raimund Klink commented

2021-08-28 11:38:39 +02:00

Did it ever work before? Could you also try Blender 2.83 and 2.93?

Hugo Schouppe commented

2021-08-28 14:20:14 +02:00

I've tried it with 2.93 (2021-08-17) with the same result. Maybe, it has never worked.

Richard Antalik commented

2021-08-30 23:07:21 +02:00

Added subscriber: @iss

Richard Antalik commented

2021-08-30 23:07:21 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Richard Antalik commented

2021-08-30 23:07:21 +02:00

Can confirm, seems that video stream is missing some important data.

Richard Antalik commented

2021-11-19 04:51:51 +01:00

Checking this now, So far it looks like there is audio stream which much longer than video. This is causing issues with codec initialization somehow.

There is error:

Could not find codec parameters for stream 0 (Video: h264, 1 reference frame (avc1 / 0x31637661), none, 1920x1080, 1/24576, 129344 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options

Looks like error on encoding side..

Checking this now, So far it looks like there is audio stream which much longer than video. This is causing issues with codec initialization somehow. There is error: ``` Could not find codec parameters for stream 0 (Video: h264, 1 reference frame (avc1 / 0x31637661), none, 1920x1080, 1/24576, 129344 kb/s): unspecified pixel format Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options ``` Looks like error on encoding side..

blender-admin commented

2021-12-14 01:16:24 +01:00

This issue was referenced by 8e2ee4a3b7

This issue was referenced by 8e2ee4a3b7c261aa973001622419e2844a37f0fb

blender-admin commented

2021-12-14 01:16:24 +01:00

This issue was referenced by c1f5d8d023

This issue was referenced by c1f5d8d023c6fdef67efbc6ce2af49e384c9bd98

Richard Antalik commented

2021-12-14 01:31:06 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Richard Antalik closed this issue