Fix mis-alignment of copied AlignedImages; add some asserts; some docs.

[dcpomatic.git] / src / lib / combiner.cc

diff --git a/src/lib/combiner.cc b/src/lib/combiner.cc
index 888046bc434cfd38e5758c1142e9efedf56e7a2a..b85dbf288fba6a2bdc741744e470060e0c585d3c 100644 (file)
--- a/src/lib/combiner.cc
+++ b/src/lib/combiner.cc
@@ -28,16 +28,25 @@ Combiner::Combiner (Log* log)
 
 }
 
+/** Process video for the left half of the frame.
+ *  @param image Frame image.
+ *  @param sub Subtitle (which will be ignored)
+ */
 void
 Combiner::process_video (shared_ptr<Image> image, shared_ptr<Subtitle> sub)
 {
        _image = image;
 }
 
+/** Process video for the right half of the frame.
+ *  @param image Frame image.
+ *  @param sub Subtitle (which will be put onto the whole frame)
+ */
 void
 Combiner::process_video_b (shared_ptr<Image> image, shared_ptr<Subtitle> sub)
 {
        /* Copy the right half of this image into our _image */
+       /* XXX: this should probably be in the Image class */
        for (int i = 0; i < image->components(); ++i) {
                int const line_size = image->line_size()[i];
                int const half_line_size = line_size / 2;