started work on a bunch of small features

io/media.h

@@ -14,6 +14,10 @@
 #define MEDIA_TYPE_SOLID 3
 #define MEDIA_TYPE_TONE 4
 
+#define VIDEO_PROGRESSIVE 0
+#define VIDEO_TOP_FIELD_FIRST 1
+#define VIDEO_BOTTOM_FIELD_FIRST 2
+
 struct Sequence;
 struct Clip;
 
@@ -23,6 +27,7 @@ struct MediaStream {
 	int video_height;
 	bool infinite_length;
     double video_frame_rate;
+    int video_interlacing;
     int audio_channels;
     int audio_layout;
     int audio_frequency;

playback/cacher.cpp

@@ -541,12 +541,24 @@ void open_clip_worker(Clip* clip) {
 			avfilter_graph_create_filter(&clip->buffersrc_ctx, avfilter_get_by_name("buffer"), "in", filter_args, NULL, clip->filter_graph);
 			avfilter_graph_create_filter(&clip->buffersink_ctx, avfilter_get_by_name("buffersink"), "out", NULL, NULL, clip->filter_graph);
 
-			enum AVPixelFormat pix_fmts[] = { static_cast<AVPixelFormat>(dest_format), AV_PIX_FMT_NONE };
-			if (av_opt_set_int_list(clip->buffersink_ctx, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN) < 0) {
-				qDebug() << "[ERROR] Could not set output pixel format";
-			}
+            enum AVPixelFormat pix_fmts[] = { static_cast<AVPixelFormat>(dest_format), AV_PIX_FMT_NONE };
+            if (av_opt_set_int_list(clip->buffersink_ctx, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN) < 0) {
+                qDebug() << "[ERROR] Could not set output pixel format";
+            }
 
-			avfilter_link(clip->buffersrc_ctx, 0, clip->buffersink_ctx, 0);
+            bool interlaced = false;
+            if (interlaced) {
+                // TODO make better
+                AVFilterContext* yadif_filter;
+                avfilter_graph_create_filter(&yadif_filter, avfilter_get_by_name("yadif"), "yadif", "mode=3", NULL, clip->filter_graph);
+
+                clip->speed *= 2;
+
+                avfilter_link(clip->buffersrc_ctx, 0, yadif_filter, 0);
+                avfilter_link(yadif_filter, 0, clip->buffersink_ctx, 0);
+            } else {
+                avfilter_link(clip->buffersrc_ctx, 0, clip->buffersink_ctx, 0);
+            }
 
 			avfilter_graph_config(clip->filter_graph, NULL);
 		} else if (clip->stream->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {

ui/timelinewidget.cpp

@@ -341,10 +341,18 @@ void TimelineWidget::dragEnterEvent(QDragEnterEvent *event) {
             g.old_track = g.track;
         }
         panel_timeline->importing = true;
-	}/* else if (config.enable_drag_files_to_timeline && event->mimeData()->hasUrls()) {
-		event->accept();
+    } else if (config.enable_drag_files_to_timeline && event->mimeData()->hasUrls()) {
+        // TODO for this to work, we need a way to abort PreviewGenerator
 
-	}*/
+		event->accept();
+        qDebug() << "TODO get data for:";
+        QList<QUrl> urls = event->mimeData()->urls();
+        if (!urls.isEmpty()) {
+            for (int i=0;i<urls.size();i++) {
+                qDebug() << (urls.at(i).toLocalFile());
+            }
+        }
+    }
 }
 
 void TimelineWidget::dragMoveEvent(QDragMoveEvent *event) {