Download-Tools/mkvtoolnix
1
0
Fork 0
mirror of https://gitlab.com/mbunkus/mkvtoolnix.git synced 2024-10-22 07:21:21 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Added a few missing commas, added the letter "s" to the word "parameter" (because it's definitely plural, not singular as before which was wrong, as the next word is "are", which requires using plural).

remuxer32 2017-02-19 14:53:36 +01:00
parent 47c1103fe9
commit 8c5881b7fd
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Cropping-ignored.md

@ -1,16 +1,16 @@
# Cropping parameter are ignored, or cropping is done but with wrong dimensions # Cropping parameters are ignored, or cropping is done but with wrong dimensions
## The problem ## The problem
You merge a video track applying cropping parameters. When you play the file back the video is either unchanged (no cropping applied at all) or the dimensions are wrong. You merge a video track applying cropping parameters. When you play the file back, the video is either unchanged (no cropping applied at all) or the dimensions are wrong.
## Reason ## Reason
This is a bug in your player. There's unfortunately no easy way around it. This is a bug in your player. There's unfortunately no easy way around it.
In Matroska the cropping parameters are stored as four values (top, left, bottom, right) in the track headers. The video track itself is not modified. It's therefore a lossless process. In Matroska, the cropping parameters are stored as four values (top, left, bottom, right) in the track headers. The video track itself is not modified. It's therefore a lossless process.
During playback it's the player's job to set up video filters properly so that the cropping parameters are honored. The [Matroska spec notes page](http://www.matroska.org/technical/specs/notes.html#Cropping) lists the process to use: During playback, it's the player's job to set up video filters properly so that the cropping parameters are honored. The [Matroska spec notes page](http://www.matroska.org/technical/specs/notes.html#Cropping) lists the process to use:
> PixelXXX (size of the coded image) -> PixelCropXXX (size of the image to keep) -> DisplayXXX (resized cropped image) > PixelXXX (size of the coded image) -> PixelCropXXX (size of the image to keep) -> DisplayXXX (resized cropped image)