MP4 videos generated with 'H.264 lossless' do not work on most players #118712

New Issue

Open

opened 2024-02-25 06:40:13 +01:00 by Josiah · 1 comment

Josiah commented

2024-02-25 06:40:13 +01:00

Blender Version
Broken: 4.2 Alpha
Worked: This issue has occurred for some time, i can't remember a time where lossless compression works perfectly across multiple media players.

Short description of error
When I use lossless compression, while rendering mp4, the video ends up failing depending on the OS where it was generated and the Player.

Rendering using the OS Ubuntu 22.04:
The result video is blank in "VLC" media player and on the phone. The sound is good, only the video has an issue.

Rendering using the OS Windows 64bit:
Players such as "Movies & TV app," "Multimedia Player," and "Legacy Windows Media Player" couldn't play the video.
"BS.Player" and "VLC" was able to reproduce the video without any apparent issues.

Exact steps for others to reproduce the error

Open attached .blend file
Replace the image indicated in the VSE strip by any other
Render the animation

The mp4 video should result in black while using media players like "VLC", or android phone media players, where as if you check constant bitrate, it results an an actual video which can be viewed across all media players without an issue.

**Blender Version** Broken: 4.2 Alpha Worked: This issue has occurred for some time, i can't remember a time where lossless compression works perfectly across multiple media players. **Short description of error** When I use lossless compression, while rendering mp4, the video ends up failing depending on the OS where it was generated and the Player. Rendering using the OS Ubuntu 22.04: The result video is blank in "VLC" media player and on the phone. The sound is good, only the video has an issue. Rendering using the OS Windows 64bit: Players such as "Movies & TV app," "Multimedia Player," and "Legacy Windows Media Player" couldn't play the video. "BS.Player" and "VLC" was able to reproduce the video without any apparent issues. **Exact steps for others to reproduce the error** - Open attached .blend file - Replace the image indicated in the VSE strip by any other - Render the animation The mp4 video should result in black while using media players like "VLC", or android phone media players, where as if you check constant bitrate, it results an an actual video which can be viewed across all media players without an issue.

733 KiB

Josiah added the

labels 2024-02-25 06:40:13 +01:00

Iliya Katushenock added the

label 2024-02-25 07:54:40 +01:00

Germano Cavalcante commented

2024-02-26 14:59:49 +01:00

Member

I tested the issue on Windows using Blender 4.2 Alpha and a different image (since the one in your attachment isn't packed), and I rendered the animation.

I encountered a similar problem where most players did not support the generated .mp4 file.
Players such as "Movies & TV app," "Multimedia Player," and "Legacy Windows Media Player" couldn't play the video.
However, I found that "BS.Player" and "VLC" was able to reproduce the video without any apparent issues.

So, I couldn't reproduce the problem exactly as you described. However, it seems that generating an unsupported .mp4 file for most media players when using H.264 lossless compression might be a bug.

Also I found this link: blenderartists.org: H.264 lossless output is not working

So I'm confirming the issue and I'll edit the description a little.

Hi @Siah-2, I tested the issue on Windows using Blender 4.2 Alpha and a different image (since the one in your attachment isn't packed), and I rendered the animation. I encountered a similar problem where most players did not support the generated .mp4 file. Players such as "Movies & TV app," "Multimedia Player," and "Legacy Windows Media Player" couldn't play the video. However, I found that "BS.Player" and "VLC" was able to reproduce the video without any apparent issues. So, I couldn't reproduce the problem exactly as you described. However, it seems that generating an unsupported .mp4 file for most media players when using `H.264 lossless` compression might be a bug. Also I found this link: [blenderartists.org: H.264 lossless output is not working](https://blenderartists.org/t/h-264-lossless-output-is-not-working/690621/4) So I'm confirming the issue and I'll edit the description a little.

Germano Cavalcante added

Images & Movies

and removed

labels 2024-02-26 15:00:20 +01:00

Germano Cavalcante changed title from ~~Rendering using ''lossless' compression makes video blank~~ to MP4 videos generated with 'H.264 lossless' do not work on most players

2024-02-26 15:03:19 +01:00

Sign in to join this conversation.

No Label

Animation & Rigging

Asset Browser Project Overview

Automated Testing

Blender Asset Bundle

Dependency Graph

Development Management

EEVEE & Viewport

Images & Movies

Motion Tracking

Nodes & Physics

Pipeline, Assets & IO

Platforms, Builds & Tests

Render & Cycles

Render Pipeline

Sculpt, Paint & Texture

Video Sequencer

Virtual Reality

Blender 2.8 Project

Milestone 1: Basic, Local Asset Browser

Good First Issue

Animation & Rigging

Development Management

EEVEE & Viewport

Nodes & Physics

Pipeline, Assets & IO

Platforms, Builds & Tests

Render & Cycles

Sculpt, Paint & Texture

Needs Info from Developers

Needs Information from User

No Milestone

No project

No Assignees

2 Participants

Notifications

Due Date

The due date is invalid or out of range. Please use the format 'yyyy-mm-dd'.

No due date set.

Dependencies

No dependencies set.

Reference: blender/blender#118712

No description provided.