Fix rendering of animation frames if the directory not exist
This patch fixes five bugs: 1) Recover warning dialog if the user tries to render animation frames into the directory with already existing frames. (QDir uses wildcard symbols instead of c-like patterns used by ffmpeg) 2) Warn the user if rendering of frame files didn't complete successfully. Previously, Krita just tried to run ffmped on the non-existing files. 3) Create the exporting directory if it doesn't exist. 4) Create the rendering directory if it doesn't exist. 5) If the user activates video-only mode and selects absolute file path, then export the frames into the same directory as the rendered file itself.
Showing with 83 additions and 17 deletions