Graphs Layout displays frames incorrectly for J2K/MXF files

[iamdamosuzuki]

Reports for MXF files can be viewed if the reports are generated using FFplay outside of QCTools. However, the preview frames at the bottom of the Graphs Layout display incorrectly. It appears to be displaying per field, rather than per frame. This means that each thumbnail is only half the height (it appears squished). Additionally, the frame that is displayed is off from the time marker selected in the graph by a factor of two. That is to say, if the user clicks on the 100th frame in the graph, the thumbnail displays the 50th frame.

[dericed]

This is moreso an FFmpeg issue with the mxf demuxer than a QCTools issue. There was a draft patch on the issue here: http://article.gmane.org/gmane.comp.video.ffmpeg.devel/161845. See http://trac.ffmpeg.org/ticket/1102 and http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/161453.

[dericed]

I suggest to close as this issue is better resolved in ffmpeg than as a hack in qctools. Side-eye to @JeromeMartinez to see if he disagress.

[JeromeMartinez]

the FFmpeg patch is still on my ToDo-list :(.