mkv file format not supported

[siefkenj]

Is there an existing issue for this?

• [X] I have searched the existing issues

Have you tried the latest build?

• [X] I have tried the latest build

Do you have latest GPU drivers installed?

• [X] I have the latest GPU drivers installed, I'm absolutely sure.

Have you checked the documentation?

• [X] I have read the FAQ and Troubleshooting and didn't find my issue there.

Gyroflow version

git head

What operating system are you using?

gentoo x86_64

What GPU are you using?

No response

What happened?

Loading an mkv video, the video appears partially cropped in the player and "Auto sync" fails to work.

The same video in an mp4 container works perfectly. Attached is an mp4 and mkv sample (created with AviDemux)

sample_960x540.zip

Relevant log output

No response

[AdrianEddy]

why would you want to use mkv? As far as I know, no camera records in this format, and after transcoding or re-muxing it's very likely to lose the gyro data, so supporting mkv is not very useful in Gyroflow

[siefkenj]

I have video that has no gyro data that I have trimmed and saved as in the mkv format. I could convert everything to mp4 and then apply gyroflow, but it seem like mkv support might not be hard to add.

[AdrianEddy]

You need to load a lens profile to be able to click autosync for optical-only analysis

[AdrianEddy]

@wang-bin looks like this sample mkv file doesn't report duration in mdk, any idea why?

[wang-bin]

@wang-bin looks like this sample mkv file doesn't report duration in mdk, any idea why?

which duration do you read? duration from container is correct

Format: matroska,webm, range: 0 +13346ms, bitrate: 303214, size: 0
Metadata:
  ENCODER: Lavf58.76.100
Streams: 1
 Video:
  stream#0, range: 0 +0ms, frames: 0
  codec: h264 tag: 0 profile: 100 level: 31, yuv420p, bpc:8, bpp:12(8,8,8), channels:(1,1,1), map: 0 1 2 0, bitrate: 0, 960x540, fps: 29.97, bframes: 0
  extra data(55): 01 64 00 1F FF E1 00 24 67 64 00 1F AC 2B 20 1E 02 2F DE 02 20 00 00 7D 20 00 1D 4C 1C 00 00 03 01 55 CC 00 00 0D 59 F8 5D E5 C1 40 01 00 04 68 EB 8F 2C FD F8 F8 00 
  Metadata:
   DURATION: 00:00:13.346000000

[AdrianEddy]

@wang-bin I'm using player->mediaInfo().video[0].duration

[wang-bin]

@wang-bin I'm using player->mediaInfo().video[0].duration

the latest build will read duration from metadata

[AdrianEddy]

thanks, I can confirm it works fine in latest dev build: https://gyroflow.xyz/devbuild/