vertical video is stretched horizontally

[avidemuxuser777]

I have a video that is in vertical orientation.

The first image shows how it looks in VLC.

The second image shows how it looks in Avidemux (v2.7.6).

Why is it stretched horizontally in Avidemux, and how do I correct this?

Thank You.

[eumagga0x2a]

1. Only the latest git master (currently the last working official build is r241212) and to some extent the last release (v2.8.1) are supported, with reported issues to be verified against with the latest development version.

2. By design, Avidemux displays videos always as they are coded, without any transformations (anamorphic corrections, rotation or mirroring) being applied.

3. Current Avidemux versions allow to specify anamorphic corrections (adaptation to non-square pixels) for MKV and MP4 muxers and rotation (for the MP4 muxer only) without re-encoding the video stream. Please mind that these transformations are hints for video players stored in the container, not in the video stream. However, the display in Avidemux itself will be always as the video is coded.