From 5820b5f022aeec75ec03f7dd0121aa8a3d7f7590 Mon Sep 17 00:00:00 2001
From: Good Guy <good1.2guy@gmail.com>
Date: Sat, 26 Mar 2016 14:04:35 -0600
Subject: [PATCH] merge: fixes/rework for fader, single frame ffmpeg, dissolve,
 silence

---
 cinelerra-5.1/bld_scripts/bld_dynamic.sh    |   2 +-
 cinelerra-5.1/bld_scripts/bld_static.sh     |   2 +-
 cinelerra-5.1/cinelerra/assetedit.C         |  86 ++++-------
 cinelerra-5.1/cinelerra/assetedit.h         |  19 +--
 cinelerra-5.1/cinelerra/cachebase.C         |   2 +-
 cinelerra-5.1/cinelerra/channelinfo.C       |   2 +-
 cinelerra-5.1/cinelerra/dbwindow.C          |   2 +-
 cinelerra-5.1/cinelerra/edl.C               |  16 ++-
 cinelerra-5.1/cinelerra/exportedl.C         |   2 +-
 cinelerra-5.1/cinelerra/file.C              |  18 +--
 cinelerra-5.1/cinelerra/filebase.C          |   2 -
 cinelerra-5.1/cinelerra/filebase.h          |   2 -
 cinelerra-5.1/cinelerra/fileffmpeg.C        |   8 +-
 cinelerra-5.1/cinelerra/framecache.C        |  36 ++---
 cinelerra-5.1/cinelerra/mainmenu.C          |  16 +--
 cinelerra-5.1/cinelerra/overlayframe.C      |  19 ++-
 cinelerra-5.1/cinelerra/playback3d.C        |  25 +---
 cinelerra-5.1/cinelerra/preferencesthread.C |   2 +-
 cinelerra-5.1/cinelerra/render.C            |   2 +-
 cinelerra-5.1/cinelerra/swindow.C           |   2 +-
 cinelerra-5.1/cinelerra/virtualvnode.C      |   2 +-
 cinelerra-5.1/cinelerra/vrender.C           |  21 +--
 cinelerra-5.1/msg.txt                       |   1 +
 cinelerra-5.1/plugins/dissolve/dissolve.C   | 149 ++++++++------------
 24 files changed, 150 insertions(+), 288 deletions(-)

diff --git a/cinelerra-5.1/bld_scripts/bld_dynamic.sh b/cinelerra-5.1/bld_scripts/bld_dynamic.sh
index 80438ea3..fdf54679 100755
--- a/cinelerra-5.1/bld_scripts/bld_dynamic.sh
+++ b/cinelerra-5.1/bld_scripts/bld_dynamic.sh
@@ -39,5 +39,5 @@ make >> log 2>&1 $@
 make install >> log 2>&1
 
 echo "finished: scanning log for ***"
-grep -a "\*\*\*" log
+grep -ai "\*\*\*.*error" log
 
diff --git a/cinelerra-5.1/bld_scripts/bld_static.sh b/cinelerra-5.1/bld_scripts/bld_static.sh
index c6157f77..e41df88c 100755
--- a/cinelerra-5.1/bld_scripts/bld_static.sh
+++ b/cinelerra-5.1/bld_scripts/bld_static.sh
@@ -39,5 +39,5 @@ make >> log 2>&1 $@
 make install >> log 2>&1
 
 echo "finished: scanning log for ***"
-grep -a "\*\*\*" log
+grep -ai "\*\*\*.*error" log
 
diff --git a/cinelerra-5.1/cinelerra/assetedit.C b/cinelerra-5.1/cinelerra/assetedit.C
index 9d3e6869..cb633437 100644
--- a/cinelerra-5.1/cinelerra/assetedit.C
+++ b/cinelerra-5.1/cinelerra/assetedit.C
@@ -108,6 +108,17 @@ void AssetEdit::edit_asset(Indexable *indexable)
 	BC_DialogThread::start();
 }
 
+void AssetEdit::handle_done_event(int result)
+{
+	if( !result ) {
+		changed_params->tcstart = ceil(indexable->get_frame_rate() *
+			(atoi(window->tc_hours_textbox->get_text()) * 3600 +
+			 atoi(window->tc_minutes_textbox->get_text()) * 60 +
+			 atoi(window->tc_seconds_textbox->get_text()))) +
+			 atoi(window->tc_rest_textbox->get_text());
+	}
+}
+
 void AssetEdit::handle_close_event(int result)
 {
  	if(!result)
@@ -609,39 +620,24 @@ void AssetEditWindow::create_objects()
 		x = x2;
 
 // Calculate values to enter into textboxes
-		char tc[12];
-
-		Units::totext(tc,
-			asset->tcstart / asset->frame_rate,
-			TIME_HMSF,
-			asset->sample_rate,
-			asset->frame_rate);
-
-		char *tc_hours = tc;
-		char *tc_minutes = strchr(tc, ':') + 1;
-		*(tc_minutes - 1) = 0;
-		char *tc_seconds = strchr(tc_minutes, ':') + 1;
-		*(tc_seconds - 1) = 0;
-		char *tc_rest = strchr(tc_seconds, ':') + 1;
-		*(tc_rest - 1) = 0;
-
-		add_subwindow(new AssetEditTCStartTextBox(this, atoi(tc_hours), x, y,
-			(int) (asset->frame_rate * 60 * 60)));
-		x += 30;
-		add_subwindow(new BC_Title(x, y, ":"));
-		x += 10;
-		add_subwindow(new AssetEditTCStartTextBox(this, atoi(tc_minutes), x, y,
-			(int) (asset->frame_rate * 60)));
-		x += 30;
-		add_subwindow(new BC_Title(x, y, ":"));
-		x += 10;
-		add_subwindow(new AssetEditTCStartTextBox(this, atoi(tc_seconds), x, y,
-			(int) (asset->frame_rate)));
-		x += 30;
-		add_subwindow(new BC_Title(x, y, ":"));
-		x += 10;
-		add_subwindow(new AssetEditTCStartTextBox(this, atoi(tc_rest), x, y, 1));
-
+		char text[32], *tc = text;
+		Units::totext(tc, asset->tcstart / asset->frame_rate,
+			TIME_HMSF, asset->sample_rate, asset->frame_rate);
+
+		const char *tc_hours = tc, *tc_minutes, *tc_seconds, *tc_rest;
+		tc = strchr(tc, ':');  *tc++ = 0;  tc_minutes = tc;
+		tc = strchr(tc, ':');  *tc++ = 0;  tc_seconds = tc;
+		tc = strchr(tc, ':');  *tc++ = 0;  tc_rest = tc;
+
+		int padw = BC_Title::calculate_w(this, ":", MEDIUMFONT);
+		int fldw = BC_Title::calculate_w(this, "00", MEDIUMFONT) + 5;
+		add_subwindow(tc_hours_textbox = new BC_TextBox(x, y, fldw, 1, tc_hours));
+		add_subwindow(new BC_Title(x += tc_hours_textbox->get_w(), y, ":"));
+		add_subwindow(tc_minutes_textbox = new BC_TextBox(x += padw, y, fldw, 1, tc_minutes));
+		add_subwindow(new BC_Title(x += tc_minutes_textbox->get_w(), y, ":"));
+		add_subwindow(tc_seconds_textbox = new BC_TextBox(x += padw, y , fldw, 1, tc_seconds));
+		add_subwindow(new BC_Title(x += tc_seconds_textbox->get_w(), y, ":"));
+		add_subwindow(tc_rest_textbox = new BC_TextBox(x += 10, y, fldw, 1, tc_rest));
 
 		y += 30;
 	}
@@ -1090,7 +1086,7 @@ void DetailAssetThread::run()
 
 
 AssetEditReelName::AssetEditReelName(AssetEditWindow *fwindow, int x, int y)
- : BC_TextBox(x, y, 300, 1,
+ : BC_TextBox(x, y, 220, 1,
 	((Asset *)fwindow->asset_edit->indexable)->reel_name,
 	1, MEDIUMFONT, 1)
 {
@@ -1127,25 +1123,3 @@ int AssetEditReelNumber::handle_event()
 
 
 
-
-
-AssetEditTCStartTextBox::AssetEditTCStartTextBox(AssetEditWindow *fwindow, int value, int x, int y, int multiplier)
- : BC_TextBox(x, y, 30, 1, value)
-{
-	this->fwindow = fwindow;
-	this->multiplier = multiplier;
-	previous = value;
-}
-AssetEditTCStartTextBox::~AssetEditTCStartTextBox()
-{
-}
-int AssetEditTCStartTextBox::handle_event()
-{
-	Asset *asset = fwindow->asset_edit->changed_params;
-	asset->tcstart -= previous * multiplier;
-	asset->tcstart += atoi(get_text()) * multiplier;
-	previous = atoi(get_text());
-	return 1;
-}
-
-
diff --git a/cinelerra-5.1/cinelerra/assetedit.h b/cinelerra-5.1/cinelerra/assetedit.h
index 98cbcc0c..bc5503c9 100644
--- a/cinelerra-5.1/cinelerra/assetedit.h
+++ b/cinelerra-5.1/cinelerra/assetedit.h
@@ -35,7 +35,6 @@
 #include "resizetrackthread.inc"
 
 
-class AssetEditTCStartTextBox;
 class AssetEditReelNumber;
 class AssetEditReelName;
 class AssetEditByteOrderHILO;
@@ -56,6 +55,7 @@ public:
 
 	void edit_asset(Indexable *indexable);
 	int set_asset(Indexable *indexable);
+	void handle_done_event(int result);
 	void handle_close_event(int result);
 	BC_Window* new_gui();
 
@@ -84,6 +84,8 @@ public:
 	AssetEditPath *path_button;
 	AssetEditByteOrderHILO *hilo;
 	AssetEditByteOrderLOHI *lohi;
+	BC_TextBox *tc_hours_textbox, *tc_minutes_textbox;
+	BC_TextBox *tc_seconds_textbox, *tc_rest_textbox;
 	BitsPopup *bitspopup;
 	int allow_edits;
 	MWindow *mwindow;
@@ -92,6 +94,7 @@ public:
 	BC_Title *win_height;
 	DetailAssetThread *detail_thread;
 	void show_info_detail();
+
 };
 
 
@@ -295,20 +298,6 @@ public:
 	AssetEditWindow *fwindow;
 };
 
-class AssetEditTCStartTextBox : public BC_TextBox
-{
-public:
-	AssetEditTCStartTextBox(AssetEditWindow *fwindow, int value, int x, int y, int multiplier);
-	~AssetEditTCStartTextBox();
-	int handle_event();
-
-	AssetEditWindow *fwindow;
-// Multiplier is the # of frames for whatever unit of time this is.
-// fps dependent, and unit dependent
-	int multiplier;
-	int previous;
-};
-
 class DetailAssetWindow : public BC_Window
 {
         MWindow *mwindow;
diff --git a/cinelerra-5.1/cinelerra/cachebase.C b/cinelerra-5.1/cinelerra/cachebase.C
index 267ff515..8e02543a 100644
--- a/cinelerra-5.1/cinelerra/cachebase.C
+++ b/cinelerra-5.1/cinelerra/cachebase.C
@@ -120,7 +120,7 @@ int CacheBase::delete_oldest()
 		if( current->age < oldest->age )
 			oldest = current;
 	}
-	if( oldest ) {
+	if( oldest && oldest->position >= 0 ) {
 		del_item(oldest);
 		result = 1;
 	}
diff --git a/cinelerra-5.1/cinelerra/channelinfo.C b/cinelerra-5.1/cinelerra/channelinfo.C
index 03d8d842..140f3d30 100644
--- a/cinelerra-5.1/cinelerra/channelinfo.C
+++ b/cinelerra-5.1/cinelerra/channelinfo.C
@@ -1787,7 +1787,7 @@ void ChannelInfo::delete_batch()
 }
 
 ChannelScan::ChannelScan(MWindow *mwindow)
- : BC_MenuItem(_("Scan"), _("Shift-S"), 'S')
+ : BC_MenuItem(_("Scan..."), _("Shift-S"), 'S')
 {
 	set_shift();
 	this->mwindow = mwindow;
diff --git a/cinelerra-5.1/cinelerra/dbwindow.C b/cinelerra-5.1/cinelerra/dbwindow.C
index 2a6395cf..c19b581e 100644
--- a/cinelerra-5.1/cinelerra/dbwindow.C
+++ b/cinelerra-5.1/cinelerra/dbwindow.C
@@ -199,7 +199,7 @@ keypress_event()
 
 DbWindowScan::
 DbWindowScan(MWindow *mwindow)
- : BC_MenuItem(_("Media DB"), _("Shift-M"), 'M')
+ : BC_MenuItem(_("Media DB..."), _("Shift-M"), 'M')
 {
 	set_shift();
 	this->mwindow = mwindow;
diff --git a/cinelerra-5.1/cinelerra/edl.C b/cinelerra-5.1/cinelerra/edl.C
index d1d904aa..e167e48a 100644
--- a/cinelerra-5.1/cinelerra/edl.C
+++ b/cinelerra-5.1/cinelerra/edl.C
@@ -35,6 +35,7 @@
 #include "filexml.h"
 #include "guicast.h"
 #include "indexstate.h"
+#include "interlacemodes.h"
 #include "labels.h"
 #include "localsession.h"
 #include "mutex.h"
@@ -1448,20 +1449,23 @@ if(debug) printf("EDL::get_use_vconsole %d\n", __LINE__);
 
 if(debug) printf("EDL::get_use_vconsole %d\n", __LINE__);
 // Edit is not a nested EDL
+	Asset *asset = (*playable_edit)->asset;
 // Edit is silence
-	if(!(*playable_edit)->asset) return 1;
+	if(!asset) return 1;
 if(debug) printf("EDL::get_use_vconsole %d\n", __LINE__);
 
-
 // Asset and output device must have the same dimensions
-	if((*playable_edit)->asset->width != session->output_w ||
-		(*playable_edit)->asset->height != session->output_h)
+	if( asset->width != session->output_w ||
+	    asset->height != session->output_h )
 		return 1;
 
 
 if(debug) printf("EDL::get_use_vconsole %d\n", __LINE__);
-
-
+// Asset and output device must have same resulting de-interlacing method
+	if( ilaceautofixmethod2(session->interlace_mode,
+	    asset->interlace_autofixoption, asset->interlace_mode,
+	    asset->interlace_fixmethod) != BC_ILACE_FIXMETHOD_NONE )
+		return 1;
 
 // If we get here the frame is going to be directly copied.  Whether it is
 // decompressed in hardware depends on the colormodel.
diff --git a/cinelerra-5.1/cinelerra/exportedl.C b/cinelerra-5.1/cinelerra/exportedl.C
index 21e02bfe..04e22ebd 100644
--- a/cinelerra-5.1/cinelerra/exportedl.C
+++ b/cinelerra-5.1/cinelerra/exportedl.C
@@ -252,7 +252,7 @@ int ExportEDLAsset::save_defaults()
 
 
 ExportEDLItem::ExportEDLItem(MWindow *mwindow)
- : BC_MenuItem(_("Export EDL..."), "Shift+E", 'E')
+ : BC_MenuItem(_("Export EDL..."), "Shift-E", 'E')
 {
 	this->mwindow = mwindow;
 	set_shift(1);
diff --git a/cinelerra-5.1/cinelerra/file.C b/cinelerra-5.1/cinelerra/file.C
index 103c9a4d..f5932e3e 100644
--- a/cinelerra-5.1/cinelerra/file.C
+++ b/cinelerra-5.1/cinelerra/file.C
@@ -1171,13 +1171,11 @@ int File::read_frame(VFrame *frame, int is_thread)
 	if(debug) PRINT_TRACE
 	int supported_colormodel = colormodel_supported(frame->get_color_model());
 	int advance_position = 1;
-
+	int cache_active = use_cache || asset->video_length < 0 ? 1 : 0;
+	int64_t cache_position = asset->video_length >= 0 ? current_frame : -1;
 // Test cache
-	if(use_cache &&
-		frame_cache->get_frame(frame,
-			current_frame,
-			current_layer,
-			asset->frame_rate))
+	if( cache_active && frame_cache->get_frame(frame, cache_position,
+			current_layer, asset->frame_rate) )
 	{
 // Can't advance position if cache used.
 //printf("File::read_frame %d\n", __LINE__);
@@ -1245,11 +1243,9 @@ int File::read_frame(VFrame *frame, int is_thread)
 //for(int i = 0; i < 100 * 1000; i++) ((float*)frame->get_rows()[0])[i] = 1.0;
 	}
 
-//printf("File::read_frame %d use_cache=%d\n", __LINE__, use_cache);
-	if(use_cache)
-		frame_cache->put_frame(frame,
-			current_frame, current_layer,
-			asset->frame_rate, 1, 0);
+	if( cache_active && advance_position && frame->get_status() > 0 )
+		frame_cache->put_frame(frame, cache_position,
+			current_layer, asset->frame_rate, 1, 0);
 //printf("File::read_frame %d\n", __LINE__);
 
 	if(advance_position) current_frame++;
diff --git a/cinelerra-5.1/cinelerra/filebase.C b/cinelerra-5.1/cinelerra/filebase.C
index b8a66316..5629f6c2 100644
--- a/cinelerra-5.1/cinelerra/filebase.C
+++ b/cinelerra-5.1/cinelerra/filebase.C
@@ -37,7 +37,6 @@ FileBase::FileBase(Asset *asset, File *file)
 	this->asset = asset;
 	internal_byte_order = get_byte_order();
 	reset_parameters();
-	overlayer = new OverlayFrame;
 }
 
 FileBase::~FileBase()
@@ -46,7 +45,6 @@ FileBase::~FileBase()
 	if(row_pointers_in) delete [] row_pointers_in;
 	if(row_pointers_out) delete [] row_pointers_out;
 	if(float_buffer) delete [] float_buffer;
-	delete overlayer;
 }
 
 int FileBase::close_file()
diff --git a/cinelerra-5.1/cinelerra/filebase.h b/cinelerra-5.1/cinelerra/filebase.h
index a4b14dc9..db9e5b06 100644
--- a/cinelerra-5.1/cinelerra/filebase.h
+++ b/cinelerra-5.1/cinelerra/filebase.h
@@ -221,8 +221,6 @@ private:
 	int delete_ulaw_tables();
 	float *ulawtofloat_table, *ulawtofloat_ptr;
 	unsigned char *floattoulaw_table, *floattoulaw_ptr;
-
-	OverlayFrame *overlayer;
 };
 
 #endif
diff --git a/cinelerra-5.1/cinelerra/fileffmpeg.C b/cinelerra-5.1/cinelerra/fileffmpeg.C
index f2a0c43d..e311b25d 100644
--- a/cinelerra-5.1/cinelerra/fileffmpeg.C
+++ b/cinelerra-5.1/cinelerra/fileffmpeg.C
@@ -183,6 +183,8 @@ int FileFFMPEG::select_video_stream(Asset *asset, int vstream)
 	asset->width = ff->ff_video_width(vstream);
 	asset->height = ff->ff_video_height(vstream);
 	asset->video_length = ff->ff_video_frames(vstream);
+	if( (asset->video_length = ff->ff_video_frames(vstream)) < 2 )
+		asset->video_length = asset->video_length < 0 ? 0 : -1;
 	asset->frame_rate = ff->ff_frame_rate(vstream);
 	return 0;
 }
@@ -220,7 +222,9 @@ int FileFFMPEG::open_file(int rd, int wr)
 				asset->actual_height = ff->ff_video_height(0);
 				if( !asset->width ) asset->width = asset->actual_width;
 				if( !asset->height ) asset->height = asset->actual_height;
-				if( !asset->video_length ) asset->video_length = ff->ff_video_frames(0);
+				if( !asset->video_length &&
+				    (asset->video_length = ff->ff_video_frames(0)) < 2 )
+					asset->video_length = asset->video_length < 0 ? 0 : -1;
 				if( !asset->frame_rate ) asset->frame_rate = ff->ff_frame_rate(0);
 			}
 			IndexState *index_state = asset->index_state;
@@ -283,7 +287,7 @@ int FileFFMPEG::read_frame(VFrame *frame)
 {
         if( !ff ) return -1;
 	int layer = file->current_layer;
-	int64_t pos = file->current_frame;
+	int64_t pos = asset->video_length >= 0 ? file->current_frame : 0;
 	int ret = ff->decode(layer, pos, frame);
 	frame->set_status(ret);
 	if( ret >= 0 ) return 0;
diff --git a/cinelerra-5.1/cinelerra/framecache.C b/cinelerra-5.1/cinelerra/framecache.C
index a5f6deb2..afb149f0 100644
--- a/cinelerra-5.1/cinelerra/framecache.C
+++ b/cinelerra-5.1/cinelerra/framecache.C
@@ -29,6 +29,7 @@
 #include "vframe.h"
 
 
+#include <limits.h>
 #include <math.h>
 #include <string.h>
 #include <unistd.h>
@@ -173,12 +174,8 @@ VFrame* FrameCache::get_frame_ptr(int64_t position,
 
 // Puts frame in cache if enough space exists and the frame doesn't already
 // exist.
-void FrameCache::put_frame(VFrame *frame, 
-	int64_t position,
-	int layer,
-	double frame_rate,
-	int use_copy,
-	Indexable *indexable)
+void FrameCache::put_frame(VFrame *frame, int64_t position,
+	int layer, double frame_rate, int use_copy, Indexable *indexable)
 {
 	lock->lock("FrameCache::put_frame");
 	FrameCacheItem *item = 0;
@@ -187,13 +184,7 @@ void FrameCache::put_frame(VFrame *frame,
 
 //printf("FrameCache::put_frame %d position=%jd\n", __LINE__, position);
 
-	if(frame_exists(frame,
-		position, 
-		layer,
-		frame_rate,
-		&item,
-		source_id))
-	{
+	if(frame_exists(frame, position, layer, frame_rate, &item, source_id)) {
 		item->age = get_age();
 		lock->unlock();
 		return;
@@ -202,14 +193,7 @@ void FrameCache::put_frame(VFrame *frame,
 
 	item = new FrameCacheItem;
 
-	if(use_copy)
-	{
-		item->data = new VFrame(*frame);
-	}
-	else
-	{
-		item->data = frame;
-	}
+	item->data = use_copy ? new VFrame(*frame) : frame;
 
 // Copy metadata
 	item->position = position;
@@ -219,7 +203,7 @@ void FrameCache::put_frame(VFrame *frame,
 	if(indexable) 
 		item->path = cstrdup(indexable->path);
 
-	item->age = get_age();
+	item->age = position < 0 ? INT_MAX : get_age();
 
 //printf("FrameCache::put_frame %d position=%jd\n", __LINE__, position);
 	put_item(item);
@@ -229,12 +213,8 @@ void FrameCache::put_frame(VFrame *frame,
 
 
 
-int FrameCache::frame_exists(VFrame *format,
-	int64_t position, 
-	int layer,
-	double frame_rate,
-	FrameCacheItem **item_return,
-	int source_id)
+int FrameCache::frame_exists(VFrame *format, int64_t position, 
+	int layer, double frame_rate, FrameCacheItem **item_return, int source_id)
 {
 	FrameCacheItem *item = (FrameCacheItem*)get_item(position);
 // printf("FrameCache::frame_exists %d item=%p item->position=%jd position=%jd\n",
diff --git a/cinelerra-5.1/cinelerra/mainmenu.C b/cinelerra-5.1/cinelerra/mainmenu.C
index b02812ac..b04800bb 100644
--- a/cinelerra-5.1/cinelerra/mainmenu.C
+++ b/cinelerra-5.1/cinelerra/mainmenu.C
@@ -251,7 +251,7 @@ void MainMenu::create_objects()
 	windowmenu->add_item(new BC_MenuItem("-"));
 	windowmenu->add_item(split_x = new SplitX(mwindow));
 	windowmenu->add_item(split_y = new SplitY(mwindow));
-	windowmenu->add_item(new TileWindows(mwindow,_("Default positions"),-1,_("Ctrl+P"),'p'));
+	windowmenu->add_item(new TileWindows(mwindow,_("Default positions"),-1,_("Ctrl-P"),'p'));
 	windowmenu->add_item(new TileWindows(mwindow,_("Tile left"),0));
 	windowmenu->add_item(new TileWindows(mwindow,_("Tile right"),1));
 }
@@ -627,7 +627,7 @@ int Undo::update_caption(const char *new_caption)
 }
 
 
-Redo::Redo(MWindow *mwindow) : BC_MenuItem(_("Redo"), _("Shift+Z"), 'Z')
+Redo::Redo(MWindow *mwindow) : BC_MenuItem(_("Redo"), _("Shift-Z"), 'Z')
 {
 	set_shift(1);
 	this->mwindow = mwindow;
@@ -891,7 +891,7 @@ int Clear::handle_event()
 }
 
 PasteSilence::PasteSilence(MWindow *mwindow)
- : BC_MenuItem(_("Paste silence"), _("Shift+Space"), ' ')
+ : BC_MenuItem(_("Paste silence"), _("Shift-Space"), ' ')
 {
 	this->mwindow = mwindow;
 	set_shift();
@@ -1146,7 +1146,7 @@ int DeleteTrack::handle_event()
 }
 
 MoveTracksUp::MoveTracksUp(MWindow *mwindow)
- : BC_MenuItem(_("Move tracks up"), _("Shift+Up"), UP)
+ : BC_MenuItem(_("Move tracks up"), _("Shift-Up"), UP)
 {
 	set_shift(); this->mwindow = mwindow;
 }
@@ -1158,7 +1158,7 @@ int MoveTracksUp::handle_event()
 }
 
 MoveTracksDown::MoveTracksDown(MWindow *mwindow)
- : BC_MenuItem(_("Move tracks down"), _("Shift+Down"), DOWN)
+ : BC_MenuItem(_("Move tracks down"), _("Shift-Down"), DOWN)
 {
 	set_shift(); this->mwindow = mwindow;
 }
@@ -1190,7 +1190,7 @@ int ConcatenateTracks::handle_event()
 
 
 LoopPlayback::LoopPlayback(MWindow *mwindow)
- : BC_MenuItem(_("Loop Playback"), _("Shift+L"), 'L')
+ : BC_MenuItem(_("Loop Playback"), _("Shift-L"), 'L')
 {
 	this->mwindow = mwindow;
 	set_checked(mwindow->edl->local_session->loop_playback);
@@ -1459,7 +1459,7 @@ int TileWindows::handle_event()
 }
 
 SplitX::SplitX(MWindow *mwindow)
- : BC_MenuItem(_("Split X pane"), _("Ctrl+1"), '1')
+ : BC_MenuItem(_("Split X pane"), _("Ctrl-1"), '1')
 {
 	this->mwindow = mwindow;
 	set_ctrl(1);
@@ -1472,7 +1472,7 @@ int SplitX::handle_event()
 }
 
 SplitY::SplitY(MWindow *mwindow)
- : BC_MenuItem(_("Split Y pane"), _("Ctrl+2"), '2')
+ : BC_MenuItem(_("Split Y pane"), _("Ctrl-2"), '2')
 {
 	this->mwindow = mwindow;
 	set_ctrl(1);
diff --git a/cinelerra-5.1/cinelerra/overlayframe.C b/cinelerra-5.1/cinelerra/overlayframe.C
index 4de38e36..098bf9db 100644
--- a/cinelerra-5.1/cinelerra/overlayframe.C
+++ b/cinelerra-5.1/cinelerra/overlayframe.C
@@ -485,7 +485,7 @@ ZTYP(float);	ZTYP(double);
 
 #define ALPHA3_BLEND(FN, typ, inp, out, mx, ofs, rnd) \
   typ inp0 = (typ)inp[0], inp1 = (typ)inp[1] - ofs; \
-  typ inp2 = (typ)inp[2] - ofs, inp3 = fade * mx + rnd; \
+  typ inp2 = (typ)inp[2] - ofs, inp3 = mx; \
   typ out0 = (typ)out[0], out1 = (typ)out[1] - ofs; \
   typ out2 = (typ)out[2] - ofs, out3 = mx; \
   r = COLOR_##FN(mx, inp0, inp3, out0, out3); \
@@ -500,7 +500,7 @@ ZTYP(float);	ZTYP(double);
 
 #define ALPHA4_BLEND(FN, typ, inp, out, mx, ofs, rnd) \
   typ inp0 = (typ)inp[0], inp1 = (typ)inp[1] - ofs; \
-  typ inp2 = (typ)inp[2] - ofs, inp3 = (typ)inp[3] * fade + rnd; \
+  typ inp2 = (typ)inp[2] - ofs, inp3 = inp[3]; \
   typ out0 = (typ)out[0], out1 = (typ)out[1] - ofs; \
   typ out2 = (typ)out[2] - ofs, out3 = out[3]; \
   r = COLOR_##FN(mx, inp0, inp3, out0, out3); \
@@ -544,7 +544,7 @@ ZTYP(float);	ZTYP(double);
   out[3] = aclip(a, mx)
 
 #define XBLEND(FN, temp_type, type, max, components, chroma_offset, round) { \
-	temp_type opcty = alpha * max + round, trnsp = max - opcty; \
+	temp_type opcty = fade * max + round, trnsp = max - opcty; \
 	type** output_rows = (type**)output->get_rows(); \
 	type** input_rows = (type**)input->get_rows(); \
 	ix *= components;  ox *= components; \
@@ -608,8 +608,7 @@ void DirectUnit::process_package(LoadPackage *package)
 	VFrame *output = engine->output;
 	VFrame *input = engine->input;
 	int mode = engine->mode;
-	float fade = engine->alpha;
-	float alpha =
+	float fade =
 		BC_CModels::has_alpha(input->get_color_model()) &&
 		mode == TRANSFER_REPLACE ? 1.f : engine->alpha;
 
@@ -690,7 +689,7 @@ LoadPackage* DirectEngine::new_package()
 /* Nearest Neighbor scale / translate / blend ********************/
 
 #define XBLEND_3NN(FN, temp_type, type, max, components, chroma_offset, round) { \
-	temp_type opcty = alpha * max + round, trnsp = max - opcty; \
+	temp_type opcty = fade * max + round, trnsp = max - opcty; \
 	type** output_rows = (type**)output->get_rows(); \
 	type** input_rows = (type**)input->get_rows(); \
 	ox *= components; \
@@ -753,8 +752,7 @@ void NNUnit::process_package(LoadPackage *package)
 	VFrame *output = engine->output;
 	VFrame *input = engine->input;
 	int mode = engine->mode;
-	float fade = engine->alpha;
-	float alpha =
+	float fade =
 		BC_CModels::has_alpha(input->get_color_model()) &&
 		mode == TRANSFER_REPLACE ? 1.f : engine->alpha;
 
@@ -909,7 +907,7 @@ LoadPackage* NNEngine::new_package()
 
 #define XSAMPLE(FN, temp_type, type, max, components, chroma_offset, round) { \
 	float temp[oh*components]; \
-	temp_type opcty = alpha * max + round, trnsp = max - opcty; \
+	temp_type opcty = fade * max + round, trnsp = max - opcty; \
 	type **output_rows = (type**)voutput->get_rows() + o1i; \
 	type **input_rows = (type**)vinput->get_rows(); \
  \
@@ -1027,8 +1025,7 @@ void SampleUnit::process_package(LoadPackage *package)
 	VFrame *voutput = engine->output;
 	VFrame *vinput = engine->input;
 	int mode = engine->mode;
-	float fade = engine->alpha;
-	float alpha =
+	float fade =
 		BC_CModels::has_alpha(vinput->get_color_model()) &&
 		mode == TRANSFER_REPLACE ? 1.f : engine->alpha;
 
diff --git a/cinelerra-5.1/cinelerra/playback3d.C b/cinelerra-5.1/cinelerra/playback3d.C
index f733105f..a6a721ba 100644
--- a/cinelerra-5.1/cinelerra/playback3d.C
+++ b/cinelerra-5.1/cinelerra/playback3d.C
@@ -149,9 +149,8 @@ static const char *blend_normal_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
-	"	vec4 result = canvas * (1.0 - gl_FragColor.a) + gl_FragColor * gl_FragColor.a;\n"
+	"	vec4 result = mix(canvas, gl_FragColor, gl_FragColor.a);\n"
 	"	gl_FragColor = mix(canvas, result, alpha);\n"
 	"}\n";
 
@@ -161,7 +160,6 @@ static const char *blend_add_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = canvas + gl_FragColor;\n"
 	"	result = clamp(result, 0.0, 1.0);\n"
@@ -174,7 +172,6 @@ static const char *blend_subtract_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = gl_FragColor - canvas;\n"
 	"	result = clamp(result, 0.0, 1.0);\n"
@@ -187,7 +184,6 @@ static const char *blend_multiply_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = canvas * gl_FragColor;\n"
 	"	gl_FragColor = mix(canvas, result, alpha);\n"
@@ -199,7 +195,6 @@ static const char *blend_divide_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = gl_FragColor / canvas;\n"
 	"	if(!canvas.r) result.r = 1.0;\n"
@@ -214,7 +209,6 @@ static const char *blend_divide_frag =
 static const char *blend_replace_frag =
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"}\n";
 
 // MAX
@@ -223,7 +217,6 @@ static const char *blend_max_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = max(canvas, gl_FragColor);\n"
 	"	result = clamp(result, 0.0, 1.0);\n"
@@ -236,7 +229,6 @@ static const char *blend_min_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = min(canvas, gl_FragColor);\n"
 	"	result = clamp(result, 0.0, 1.0);\n"
@@ -249,7 +241,6 @@ static const char *blend_average_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = (canvas + gl_FragColor) * 0.5;\n"
 	"	result = clamp(result, 0.0, 1.0);\n"
@@ -262,7 +253,6 @@ static const char *blend_darken_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = vec4(canvas.rgb * (1.0 - gl_FragColor.a) +"
 			" gl_FragColor.rgb * (1.0 - canvas.a) +"
@@ -278,7 +268,6 @@ static const char *blend_lighten_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = vec4(canvas.rgb * (1.0 - gl_FragColor.a) +"
 			" gl_FragColor.rgb * (1.0 - canvas.a) +"
@@ -294,7 +283,6 @@ static const char *blend_dst_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-//	"	gl_FragColor.a *= alpha;\n"
 //	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 //	"	vec4 result = canvas;\n"
 //	"	gl_FragColor = mix(result, canvas, alpha);\n"
@@ -307,7 +295,6 @@ static const char *blend_dst_atop_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = vec4(canvas.rgb * gl_FragColor.a + "
 			"(1.0 - canvas.a) * gl_FragColor.rgb, gl_FragColor.a);\n"
@@ -320,7 +307,6 @@ static const char *blend_dst_in_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = canvas * gl_FragColor.a;\n"
 	"	gl_FragColor = mix(canvas, result, alpha);\n"
@@ -332,7 +318,6 @@ static const char *blend_dst_out_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = canvas * (1.0 - gl_FragColor.a);\n"
 	"	gl_FragColor = mix(canvas, result, alpha);\n"
@@ -344,7 +329,6 @@ static const char *blend_dst_over_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = vec4(canvas.rgb + (1.0 - canvas.a) * gl_FragColor.rgb, "
 			" gl_FragColor.a + canvas.a - gl_FragColor.a * canvas.a);\n"
@@ -357,7 +341,6 @@ static const char *blend_src_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = gl_FragColor;\n"
 	"	gl_FragColor = mix(canvas, result, alpha);\n"
@@ -369,7 +352,6 @@ static const char *blend_src_atop_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = vec4(gl_FragColor.rgb * canvas.a + "
 			"canvas.rgb * (1.0 - gl_FragColor.a), canvas.a);\n"
@@ -382,7 +364,6 @@ static const char *blend_src_in_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = gl_FragColor * canvas.a;\n"
 	"	gl_FragColor = mix(canvas, result, alpha);\n"
@@ -394,7 +375,6 @@ static const char *blend_src_out_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = gl_FragColor * (1.0 - canvas.a);\n"
 	"	gl_FragColor = mix(canvas, result, alpha);\n"
@@ -406,7 +386,6 @@ static const char *blend_src_over_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = vec4(gl_FragColor.rgb + (1.0 - gl_FragColor.a) * canvas.rgb, "
 				"gl_FragColor.a + canvas.a - gl_FragColor.a * canvas.a);\n"
@@ -419,7 +398,6 @@ static const char *blend_or_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = canvas + gl_FragColor - canvas * gl_FragColor;\n"
 	"	result = clamp(result, 0.0, 1.0);\n"
@@ -432,7 +410,6 @@ static const char *blend_xor_frag =
 	"uniform vec2 tex2_dimensions;\n"
 	"uniform float alpha;\n"
 	"void main() {\n"
-	"	gl_FragColor.a *= alpha;\n"
 	"	vec4 canvas = texture2D(tex2, gl_FragCoord.xy / tex2_dimensions);\n"
 	"	vec4 result = vec4(gl_FragColor.rgb * (1.0 - canvas.a) + "
 			"(1.0 - gl_FragColor.a) * canvas.rgb, "
diff --git a/cinelerra-5.1/cinelerra/preferencesthread.C b/cinelerra-5.1/cinelerra/preferencesthread.C
index b27342e0..2ee2e2cb 100644
--- a/cinelerra-5.1/cinelerra/preferencesthread.C
+++ b/cinelerra-5.1/cinelerra/preferencesthread.C
@@ -66,7 +66,7 @@
 
 
 PreferencesMenuitem::PreferencesMenuitem(MWindow *mwindow)
- : BC_MenuItem(_("Preferences..."), _("Shift+P"), 'P')
+ : BC_MenuItem(_("Preferences..."), _("Shift-P"), 'P')
 {
 	this->mwindow = mwindow;
 
diff --git a/cinelerra-5.1/cinelerra/render.C b/cinelerra-5.1/cinelerra/render.C
index a1160a64..0098afff 100644
--- a/cinelerra-5.1/cinelerra/render.C
+++ b/cinelerra-5.1/cinelerra/render.C
@@ -82,7 +82,7 @@
 
 
 RenderItem::RenderItem(MWindow *mwindow)
- : BC_MenuItem(_("Render..."), _("Shift+R"), 'R')
+ : BC_MenuItem(_("Render..."), _("Shift-R"), 'R')
 {
 	this->mwindow = mwindow;
 	set_shift(1);
diff --git a/cinelerra-5.1/cinelerra/swindow.C b/cinelerra-5.1/cinelerra/swindow.C
index 0c818825..65799c4b 100644
--- a/cinelerra-5.1/cinelerra/swindow.C
+++ b/cinelerra-5.1/cinelerra/swindow.C
@@ -951,7 +951,7 @@ int SWindow::update_selection()
 
 
 SubttlSWin::SubttlSWin(MWindow *mwindow)
- : BC_MenuItem(_("SubTitle"), _("Alt-y"), 'y')
+ : BC_MenuItem(_("SubTitle..."), _("Alt-y"), 'y')
 {
 	set_alt();
 	this->mwindow = mwindow;
diff --git a/cinelerra-5.1/cinelerra/virtualvnode.C b/cinelerra-5.1/cinelerra/virtualvnode.C
index 141a2a0c..1fb48461 100644
--- a/cinelerra-5.1/cinelerra/virtualvnode.C
+++ b/cinelerra-5.1/cinelerra/virtualvnode.C
@@ -414,7 +414,7 @@ int VirtualVNode::render_projector(VFrame *input, VFrame *output,
 // can do dissolves, although a blend equation is still required for 3 component
 // colormodels since fractional translation requires blending.
 
-// If this is the first playable video track and the mode_keyframe is "src_over"
+// If this is the first playable video track and the mode_keyframe is "src"
 			if(mode == TRANSFER_NORMAL &&
 				vconsole->current_exit_node == vconsole->total_exit_nodes - 1)
 				mode = TRANSFER_SRC;
diff --git a/cinelerra-5.1/cinelerra/vrender.C b/cinelerra-5.1/cinelerra/vrender.C
index 4c301162..0b424c64 100644
--- a/cinelerra-5.1/cinelerra/vrender.C
+++ b/cinelerra-5.1/cinelerra/vrender.C
@@ -29,7 +29,6 @@
 #include "edl.h"
 #include "edlsession.h"
 #include "file.h"
-#include "interlacemodes.h"
 #include "localsession.h"
 #include "mainsession.h"
 #include "mwindow.h"
@@ -144,28 +143,13 @@ int VRender::process_buffer(int64_t input_position,
 	use_vconsole = get_use_vconsole(&playable_edit, input_position, use_brender);
 	if(debug) printf("VRender::process_buffer %d use_vconsole=%d\n", __LINE__, use_vconsole);
 
-	if( playable_edit ) { 
-// Asset and output device must have same resulting de-interlacing method
-		Indexable *source = playable_edit->get_source();
-		if( source->is_asset ) {
-			Asset *asset = (Asset *)source;
-			if( ilaceautofixmethod2(renderengine->edl->session->interlace_mode,
-					asset->interlace_autofixoption, asset->interlace_mode,
-					asset->interlace_fixmethod) != BC_ILACE_FIXMETHOD_NONE )
-				return 1;
-		}
-	}
-
 // Negotiate color model
 	colormodel = get_colormodel(playable_edit, use_vconsole, use_brender);
 	if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 
 
-
-
 // Get output buffer from device
-	if(renderengine->command->realtime &&
-		!renderengine->is_nested)
+	if(renderengine->command->realtime && !renderengine->is_nested)
 	{
 		renderengine->video->new_output_buffer(&video_out, colormodel);
 	}
@@ -260,8 +244,7 @@ int VRender::get_use_vconsole(VEdit **playable_edit,
 
 // Descend into EDL nest
 	return renderengine->get_edl()->get_use_vconsole(playable_edit,
-		position,
-		renderengine->command->get_direction(),
+		position, renderengine->command->get_direction(),
 		vconsole->playable_tracks);
 }
 
diff --git a/cinelerra-5.1/msg.txt b/cinelerra-5.1/msg.txt
index f1a0ab3e..ca4de10a 100644
--- a/cinelerra-5.1/msg.txt
+++ b/cinelerra-5.1/msg.txt
@@ -4,3 +4,4 @@ Testers are welcome to report and supply examples; join at cinelerra-cv.org
 If logged in as root, can capture crashes and email /tmp/cin*.dmp file 
 Volunteer to help with language translations which will help you
 Helpful videos: http://beccatoria.dreamwidth.org/144288.html#cutid2
+Also see: http://g-raffa.eu/Cinelerra/HOWTO/basics.html
diff --git a/cinelerra-5.1/plugins/dissolve/dissolve.C b/cinelerra-5.1/plugins/dissolve/dissolve.C
index d264f6cf..c0dbb750 100644
--- a/cinelerra-5.1/plugins/dissolve/dissolve.C
+++ b/cinelerra-5.1/plugins/dissolve/dissolve.C
@@ -69,78 +69,10 @@ int DissolveMain::process_realtime(VFrame *incoming, VFrame *outgoing)
 // Use software
 	if(!overlayer) overlayer = new OverlayFrame(get_project_smp() + 1);
 
-
-// There is a problem when dissolving from a big picture to a small picture.
-// In order to make it dissolve correctly, we have to manually decrese alpha of big picture.
-	switch (outgoing->get_color_model())
-	{
-		case BC_RGBA8888:
-		case BC_YUVA8888:
-		{
-			uint8_t** data_rows = (uint8_t **)outgoing->get_rows();
-			int w = outgoing->get_w();
-			int h = outgoing->get_h(); 
-			for(int i = 0; i < h; i++) 
-			{
-				uint8_t* alpha_chan = data_rows[i] + 3; 
-				for(int j = 0; j < w; j++) 
-				{
-					*alpha_chan = (uint8_t) (*alpha_chan * (1-fade));
-					alpha_chan+=4;
-				}
-			}
-			break;
-		}
-		case BC_YUVA16161616:
-		{
-			uint16_t** data_rows = (uint16_t **)outgoing->get_rows();
-			int w = outgoing->get_w();
-			int h = outgoing->get_h(); 
-			for(int i = 0; i < h; i++)
-			{ 
-				uint16_t* alpha_chan = data_rows[i] + 3; // 3 since this is uint16_t
-				for(int j = 0; j < w; j++) 
-				{
-					*alpha_chan = (uint16_t)(*alpha_chan * (1-fade));
-					alpha_chan += 8;
-				} 
-			}
-			break;
-		}
-		case BC_RGBA_FLOAT:
-		{
-			float** data_rows = (float **)outgoing->get_rows();
-			int w = outgoing->get_w();
-			int h = outgoing->get_h(); 
-			for(int i = 0; i < h; i++) 
-			{ 
-				float* alpha_chan = data_rows[i] + 3; // 3 since this is floats 
-				for(int j = 0; j < w; j++) 
-				{
-					*alpha_chan = *alpha_chan * (1-fade);
-					alpha_chan += sizeof(float);
-				} 
-			}
-			break;
-		}
-		default:
-			break;
-	}
-
-
-	overlayer->overlay(outgoing, 
-		incoming, 
-		0, 
-		0, 
-		incoming->get_w(),
-		incoming->get_h(),
-		0,
-		0,
-		incoming->get_w(),
-		incoming->get_h(),
-		fade,
-		TRANSFER_NORMAL,
-		NEAREST_NEIGHBOR);
+	overlayer->overlay(outgoing, incoming, 
+		0, 0, incoming->get_w(), incoming->get_h(),
+		0, 0, incoming->get_w(), incoming->get_h(),
+		fade, TRANSFER_SRC, NEAREST_NEIGHBOR);
 
 	return 0;
 }
@@ -148,35 +80,64 @@ int DissolveMain::process_realtime(VFrame *incoming, VFrame *outgoing)
 int DissolveMain::handle_opengl()
 {
 #ifdef HAVE_GL
+	static const char *blend_dissolve =
+		"uniform float fade;\n"
+		"uniform sampler2D src_tex;\n"
+		"uniform sampler2D dst_tex;\n"
+		"uniform vec2 dst_tex_dimensions;\n"
+		"uniform vec3 chroma_offset;\n"
+		"void main()\n"
+		"{\n"
+		"	vec4 result_color;\n"
+		"	vec4 dst_color = texture2D(dst_tex, gl_FragCoord.xy / dst_tex_dimensions);\n"
+		"	vec4 src_color = texture2D(src_tex, gl_TexCoord[0].st);\n"
+		"	src_color.rgb -= chroma_offset;\n"
+		"	dst_color.rgb -= chroma_offset;\n"
+		"	result_color = mix(dst_color, src_color, fade);\n"
+		"	result_color.rgb += chroma_offset;\n"
+		"	gl_FragColor = result_color;\n"
+		"}\n";
 
 // Read images from RAM
-	get_input()->to_texture();
-	get_output()->to_texture();
+	VFrame *src = get_input();
+	src->to_texture();
+	VFrame *dst = get_output();
+	dst->to_texture();
+	dst->enable_opengl();
+	dst->init_screen();
+	src->bind_texture(0);
+	dst->bind_texture(1);
+
+	const char *shader_stack[] = { 0, 0, 0 };
+	int current_shader = 0;
+	shader_stack[current_shader++] = blend_dissolve;
+
+	unsigned int shader_id = VFrame::make_shader(0,
+		shader_stack[0], shader_stack[1], shader_stack[2], 0);
+
+	glUseProgram(shader_id);
+	glUniform1f(glGetUniformLocation(shader_id, "fade"), fade);
+	glUniform1i(glGetUniformLocation(shader_id, "src_tex"), 0);
+	glUniform1i(glGetUniformLocation(shader_id, "dst_tex"), 1);
+	if(BC_CModels::is_yuv(dst->get_color_model()))
+		glUniform3f(glGetUniformLocation(shader_id, "chroma_offset"), 0.0, 0.5, 0.5);
+	else
+		glUniform3f(glGetUniformLocation(shader_id, "chroma_offset"), 0.0, 0.0, 0.0);
+	glUniform2f(glGetUniformLocation(shader_id, "dst_tex_dimensions"),
+		(float)dst->get_texture_w(),
+		(float)dst->get_texture_h());
 
-// Create output pbuffer
-	get_output()->enable_opengl();
-
-	VFrame::init_screen(get_output()->get_w(), get_output()->get_h());
-
-// Enable output texture
-	get_output()->bind_texture(0);
-// Draw output texture
 	glDisable(GL_BLEND);
-	glColor4f(1, 1, 1, 1);
-	get_output()->draw_texture();
-
-// Draw input texture
-	get_input()->bind_texture(0);
-	glEnable(GL_BLEND);
-	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-	glColor4f(1, 1, 1, fade);
-	get_input()->draw_texture();
-
+	src->draw_texture();
+	glUseProgram(0);
 
 	glDisable(GL_BLEND);
-	get_output()->set_opengl_state(VFrame::SCREEN);
-
+	glActiveTexture(GL_TEXTURE1);
+	glDisable(GL_TEXTURE_2D);
+	glActiveTexture(GL_TEXTURE0);
+	glDisable(GL_TEXTURE_2D);
 
+	dst->set_opengl_state(VFrame::SCREEN);
 #endif
 	return 0;
 }
-- 
2.26.2