Substitution patterns for image and video files sink

[Y-T-G]

Closes #609

[tomskikh]

If the DIR_LOCATION has %src_filename, the Video Files Sink creates only the directory only for the first filename from each source.

Image Files Sink has the same issue.

[Y-T-G]

@tomskikh

Do you mean something like this:

            src_location = get_tag_location(frame)
            if Patterns.SOURCE_ID in self.location or Patterns.SRC_FILENAME in self.location:
                if Patterns.SOURCE_ID in self.location:
                    base_location = get_location(self.location, frame.source_id, src_location)
                else:
                    self.logger.error(f"{Patterns.SOURCE_ID} is required when {Patterns.SRC_FILENAME} is present.")        
                    return Gst.FlowReturn.ERROR
            else:
                base_location = os.path.join(self.location, frame.source_id)

[tomskikh]

@Y-T-G No. Check DIR_LOCATION at the start of the sink: for image files sink in the method main, for video files sink in the script video_files.sh or in the method VideoFilesSink.do_set_property.

[bwsw]

Will be fixed in #867 Closed.