Movie Clip Editor: Crash on Detect Features Threshold change when using H.265 / HEVC files #86847

New Issue

Daniel · 2021-03-23T10:45:56+01:00

Daniel commented

2021-03-23 10:45:56 +01:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.92

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-22 17:02, hash: 62987a6f98
Worked: (newest version of Blender that worked as expected)

Short description of error
Blender crashes when detecting features in movie clip editor and setting Threshold to anything except 0.5
Reproduced using any H.265 .mp4 clip.
Blender also crashes when preloading a H.265 video file.

Exact steps for others to reproduce the error

Default setup
Select Movie Clip Editor
Load a Video file (at least 1080p)
Detect Features, in Detect Features setting window, change Threshold

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.92 **Blender Version** Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-22 17:02, hash: `62987a6f98` Worked: (newest version of Blender that worked as expected) **Short description of error** Blender crashes when detecting features in movie clip editor and setting Threshold to anything except 0.5 Reproduced using any H.265 .mp4 clip. Blender also crashes when preloading a H.265 video file. **Exact steps for others to reproduce the error** - Default setup - Select Movie Clip Editor - Load a Video file (at least 1080p) - Detect Features, in Detect Features setting window, change Threshold

Daniel commented

2021-03-23 10:45:56 +01:00

Added subscriber: @elkoled-1

Falk David commented

2021-03-23 10:59:49 +01:00

Added subscriber: @filedescriptor

Falk David commented

2021-03-23 10:59:49 +01:00

I cannot reproduce this issue on the latest 2.93.0 Alpha, branch: master, commit date: 2021-03-23 07:34, hash: ec97450ac6.

I cannot reproduce this issue on the latest 2.93.0 Alpha, branch: master, commit date: 2021-03-23 07:34, hash: `ec97450ac6`.

Daniel commented

2021-03-23 11:26:29 +01:00

It does not happen for me using image sequences (even >8MP). I just discovered that some video files work and others don't.
I will provide an example video file that crashes Blender for me.

Prefetching the above mentioned .mp4 files also crashes blender, even when setting Memory limit to 16GB (System has 32GB)

It does not happen for me using image sequences (even >8MP). I just discovered that some video files work and others don't. I will provide an example video file that crashes Blender for me. Prefetching the above mentioned .mp4 files also crashes blender, even when setting Memory limit to 16GB (System has 32GB)

Daniel commented

2021-03-23 11:48:22 +01:00

It is related to HEVC/H.265 encoding. A working video file in H.264 does not work re-encoded in H.265.

Daniel changed title from ~~Movie Clip Editor: Crash on Detect Features Threshold change~~ to Movie Clip Editor: Crash on Detect Features Threshold change when using H.265 / HEVC files

2021-03-23 11:49:04 +01:00

Falk David commented

2021-03-23 12:19:04 +01:00

Still cannot reproduce here on linux. I used a 1920x1080 clip with H.265 encoding.

Daniel commented

2021-03-23 12:24:38 +01:00

H_265_720p.mp4 H_265.mp4
Okay, maybe related to Windows?
With these files, "Detect Features" and "Prefetch" crash Blender.

[H_265_720p.mp4](https://archive.blender.org/developer/F9905420/H_265_720p.mp4) [H_265.mp4](https://archive.blender.org/developer/F9905418/H_265.mp4) Okay, maybe related to Windows? With these files, "Detect Features" and "Prefetch" crash Blender.

Falk David commented

2021-03-23 12:42:22 +01:00

Yes, this might be Windows specific. Both files work fine for me. Prefetching and detecting features with no issue.

Yes, this might be Windows specific. Both files work fine for me. Prefetching and detecting features with no issue. ![image.png](https://archive.blender.org/developer/F9905435/image.png)

Falk David commented

2021-03-23 12:45:16 +01:00

I tried a debug build with ASAN enabled and I am getting some errors that might hint at the problem:

/.../blender/source/blender/blenkernel/intern/tracking.c:3254:22: runtime error: signed integer overflow: -2147483647 - 2147483647 cannot be represented in type 'int'
/.../blender/source/blender/blenkernel/intern/tracking.c:3293:26: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
/.../blender/source/blender/blenkernel/intern/tracking.c:3290:11: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
/.../blender/source/blender/editors/space_clip/clip_utils.c:126:11: runtime error: division by zero

I tried a debug build with ASAN enabled and I am getting some errors that might hint at the problem: ``` /.../blender/source/blender/blenkernel/intern/tracking.c:3254:22: runtime error: signed integer overflow: -2147483647 - 2147483647 cannot be represented in type 'int' /.../blender/source/blender/blenkernel/intern/tracking.c:3293:26: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' /.../blender/source/blender/blenkernel/intern/tracking.c:3290:11: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' /.../blender/source/blender/editors/space_clip/clip_utils.c:126:11: runtime error: division by zero ```

Germano Cavalcante commented

2021-03-25 21:13:47 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-03-25 21:13:47 +01:00

In #86847#1134597, @filedescriptor wrote:
I tried a debug build with ASAN enabled and I am getting some errors that might hint at the problem:

/.../blender/source/blender/blenkernel/intern/tracking.c:3254:22: runtime error: signed integer overflow: -2147483647 - 2147483647 cannot be represented in type 'int'
/.../blender/source/blender/blenkernel/intern/tracking.c:3293:26: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
/.../blender/source/blender/blenkernel/intern/tracking.c:3290:11: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
/.../blender/source/blender/editors/space_clip/clip_utils.c:126:11: runtime error: division by zero

I think these errors deserve some attention from the #vfx_video team

> In #86847#1134597, @filedescriptor wrote: > I tried a debug build with ASAN enabled and I am getting some errors that might hint at the problem: > ``` > /.../blender/source/blender/blenkernel/intern/tracking.c:3254:22: runtime error: signed integer overflow: -2147483647 - 2147483647 cannot be represented in type 'int' > /.../blender/source/blender/blenkernel/intern/tracking.c:3293:26: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' > /.../blender/source/blender/blenkernel/intern/tracking.c:3290:11: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' > /.../blender/source/blender/editors/space_clip/clip_utils.c:126:11: runtime error: division by zero > ``` I think these errors deserve some attention from the #vfx_video team

Philipp Oeser commented

2021-03-29 14:28:32 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-03-29 14:28:32 +02:00

Changed status from 'Needs Triage' to: 'Needs Developer To Reproduce'

Philipp Oeser commented

2021-03-29 14:28:32 +02:00

OK, will set to Needs Information from developers (to check above errors)

Sergey Sharybin commented

2021-03-29 14:45:28 +02:00

Added subscriber: @Sergey

Sergey Sharybin self-assigned this 2021-03-29 14:45:28 +02:00

Sergey Sharybin commented

2021-03-29 14:45:28 +02:00

I've committed a fix for the integer overflow in 8f38534300. It might potentially fix the crash as well, as it was causing a bad allocation.
Since I could not reproduce the crash myself, I'm asking you to see if the crash is fixed or not and let us know :)

I've committed a fix for the integer overflow in 8f38534300. It might potentially fix the crash as well, as it was causing a bad allocation. Since I could not reproduce the crash myself, I'm asking you to see if the crash is fixed or not and let us know :)

Daniel commented

2021-03-29 17:15:09 +02:00

Hi Sergey,
I built blender master with this info:

Blender:
===========================================

version: 2.93.0 Alpha, branch: master, commit date: 2021-03-29 14:19, hash: 2e7e13442c91, type: 
build date: 2021-03-29, 14:55:36
platform: Windows

With this build, the bug did notoccour.
With the newest 2.93.0 alpha build from blender website, the error does also notoccour.
Thanks for resolving it!
Daniel

Hi Sergey, I built blender master with this info: ``` Blender: =========================================== version: 2.93.0 Alpha, branch: master, commit date: 2021-03-29 14:19, hash: 2e7e13442c91, type: build date: 2021-03-29, 14:55:36 platform: Windows ``` With this build, the bug did **not**occour. With the newest 2.93.0 alpha build from blender website, the error does also **not**occour. Thanks for resolving it! Daniel

Sergey Sharybin commented

2021-03-29 17:18:24 +02:00

Changed status from 'Needs Developer To Reproduce' to: 'Resolved'

Sergey Sharybin closed this issue

2021-03-29 17:18:24 +02:00

Sergey Sharybin commented

2021-03-29 17:18:24 +02:00

Thanks for testing. Closing as resolved!

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Movie Clip Editor: Crash on Detect Features Threshold change when using H.265 / HEVC files #86847