videotimline

squashed 694 commits from http://gareus.org/gitweb/?p=ardour3.git

1 files changed, 769 insertions, 0 deletions

diff --git a/gtk2_ardour/video_timeline.cc b/gtk2_ardour/video_timeline.cc
new file mode 100644
index 0000000000..09301bdcec
--- /dev/null
+++ b/gtk2_ardour/video_timeline.cc
@@ -0,0 +1,769 @@
+/*
+    Copyright (C) 2010 Paul Davis
+    Author: Robin Gareus <robin@gareus.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+#ifdef WITH_VIDEOTIMELINE
+
+#include <sigc++/bind.h>
+#include "ardour/tempo.h"
+
+#include "pbd/file_utils.h"
+#include "ardour/session_directory.h"
+
+#include "ardour_ui.h"
+#include "public_editor.h"
+#include "gui_thread.h"
+#include "utils.h"
+#include "canvas_impl.h"
+#include "simpleline.h"
+#include "utils_videotl.h"
+#include "rgb_macros.h"
+#include "video_timeline.h"
+
+#include <gtkmm2ext/utils.h>
+#include <pthread.h>
+#include <curl/curl.h>
+
+#include "i18n.h"
+
+using namespace std;
+using namespace ARDOUR;
+using namespace PBD;
+using namespace Timecode;
+
+
+VideoTimeLine::VideoTimeLine (PublicEditor *ed, ArdourCanvas::Group *vbg, int initial_height)
+	: editor (ed)
+		, videotl_bar_group(vbg)
+		, bar_height(initial_height)
+{
+	video_start_offset = 0L;
+	video_offset = 0L;
+	video_offset_p = 0L;
+	video_duration = 0L;
+	auto_set_session_fps = false;
+	video_offset_lock = false;
+	video_aspect_ratio = 4.0/3.0;
+	open_video_monitor_dialog = 0;
+	Config->ParameterChanged.connect (*this, invalidator (*this), ui_bind (&VideoTimeLine::parameter_changed, this, _1), gui_context());
+	video_server_url = Config->get_video_server_url();
+	server_docroot   = Config->get_video_server_docroot();
+	video_filename = "";
+	local_file = true;
+	video_file_fps = 25.0;
+	flush_frames = false;
+	vmonitor=0;
+	reopen_vmonitor=false;
+	find_xjadeo();
+
+	VtlUpdate.connect (*this, invalidator (*this), boost::bind (&PublicEditor::queue_visual_videotimeline_update, editor), gui_context());
+	GuiUpdate.connect (*this, invalidator (*this), boost::bind (&VideoTimeLine::gui_update, this, _1), gui_context());
+}
+
+VideoTimeLine::~VideoTimeLine ()
+{
+	close_session();
+}
+
+/* close and save settings */
+void
+VideoTimeLine::save_session ()
+{
+	if (!_session) {
+		return;
+	}
+
+	LocaleGuard lg (X_("POSIX"));
+
+	bool is_dirty = false;
+
+	XMLNode* prev = _session->extra_xml (X_("Videomonitor"));
+
+	/* remember if vmonitor was open.. */
+	XMLNode* node = new XMLNode(X_("Videomonitor"));
+
+	node->add_property (X_("active"), (vmonitor && vmonitor->is_started())?"yes":"no");
+	if (!prev || !(prev->property (X_("active")) && prev->property (X_("active"))->value() == node->property(X_("active"))->value()) ){
+		_session->add_extra_xml (*node);
+		is_dirty=true; // TODO not if !prev && value==default
+	}
+
+	/* VTL settings */
+	node = _session->extra_xml (X_("Videotimeline"));
+
+	if (node) {
+		if (!(node->property(X_("id")) && node->property(X_("id"))->value() == id().to_s())) {
+			node->add_property (X_("id"), id().to_s());
+			is_dirty=true;
+		}
+	}
+
+	/* remember timeline height.. */
+	if (node) {
+		int h = editor->get_videotl_bar_height();
+		if (!(node->property(X_("Height")) && atoi(node->property(X_("Height"))->value().c_str())==h)) {
+			node->add_property (X_("Height"), h);
+			is_dirty=true;
+		}
+	}
+
+	/* save video-offset-lock */
+	if (node) {
+		if (!(node->property(X_("VideoOffsetLock")) && atoi(node->property(X_("VideoOffsetLock"))->value().c_str())==video_offset_lock)) {
+			node->add_property (X_("VideoOffsetLock"), video_offset_lock?X_("1"):X_("0"));
+			is_dirty=true;
+		}
+	}
+	/* save video-offset */
+	if (node) {
+		if (!(node->property(X_("VideoOffset")) && atoll(node->property(X_("VideoOffset"))->value().c_str())==video_offset)) {
+			node->add_property (X_("VideoOffset"), video_offset);
+			is_dirty=true;
+		}
+	}
+
+	/* save 'auto_set_session_fps' */
+	if (node) {
+		if (!(node->property(X_("AutoFPS")) && atoi(node->property(X_("AutoFPS"))->value().c_str())==auto_set_session_fps)) {
+			node->add_property (X_("AutoFPS"), auto_set_session_fps?X_("1"):X_("0"));
+			is_dirty=true;
+		}
+	}
+	if (is_dirty) {
+		_session->set_dirty ();
+	}
+}
+
+/* close and save settings */
+void
+VideoTimeLine::close_session ()
+{
+	close_video_monitor();
+	save_session();
+
+	remove_frames();
+	video_filename = "";
+	video_duration = 0L;
+}
+
+/** load settings from session */
+void
+VideoTimeLine::set_session (ARDOUR::Session *s)
+{
+	SessionHandlePtr::set_session (s);
+	if (!_session) { return ; }
+
+	LocaleGuard lg (X_("POSIX"));
+
+	XMLNode* node = _session->extra_xml (X_("Videotimeline"));
+	if (node) {
+		ARDOUR_UI::instance()->start_video_server((Gtk::Window*)0, false);
+
+		set_id(*node);
+
+		const XMLProperty* proph = node->property (X_("Height"));
+		if (proph) {
+			editor->set_video_timeline_height(atoi(proph->value().c_str()));
+		}
+#if 0 /* TODO THINK: set FPS first time only ?! */
+		const XMLProperty* propasfps = node->property (X_("AutoFPS"));
+		if (propasfps) {
+			auto_set_session_fps = atoi(propasfps->value().c_str())?true:false;
+		}
+#endif
+
+		const XMLProperty* propoffset = node->property (X_("VideoOffset"));
+		if (propoffset) {
+			video_offset = atoll(propoffset->value().c_str());
+			video_offset_p = video_offset;
+		}
+
+		const XMLProperty* proplock = node->property (X_("VideoOffsetLock"));
+		if (proplock) {
+			video_offset_lock = atoi(proplock->value().c_str())?true:false;
+		}
+
+		const XMLProperty* localfile = node->property (X_("LocalFile"));
+		if (localfile) {
+			local_file = atoi(localfile->value().c_str())?true:false;
+		}
+
+		const XMLProperty* propf = node->property (X_("Filename"));
+		video_file_info(propf->value(), local_file);
+	}
+
+	node = _session->extra_xml (X_("Videomonitor"));
+	if (node) {
+		const XMLProperty* prop = node->property (X_("active"));
+		if (prop->value() == "yes" && found_xjadeo() && !video_filename.empty() && local_file) {
+			open_video_monitor(false);
+		}
+	}
+
+	_session->register_with_memento_command_factory(id(), this);
+	_session->config.ParameterChanged.connect (*this, invalidator (*this), ui_bind (&VideoTimeLine::parameter_changed, this, _1), gui_context());
+}
+
+void
+VideoTimeLine::save_undo ()
+{
+	video_offset_p = video_offset;
+}
+
+int
+VideoTimeLine::set_state (const XMLNode& node, int /*version*/)
+{
+	LocaleGuard lg (X_("POSIX"));
+	const XMLProperty* propoffset = node.property (X_("VideoOffset"));
+	if (propoffset) {
+		video_offset = atoll(propoffset->value().c_str());
+	}
+	ARDOUR_UI::instance()->flush_videotimeline_cache(true);
+	return 0;
+}
+
+XMLNode&
+VideoTimeLine::get_state ()
+{
+	XMLNode* node = new XMLNode (X_("Videotimeline"));
+	LocaleGuard lg (X_("POSIX"));
+	node->add_property (X_("VideoOffset"), video_offset_p);
+	return *node;
+}
+
+void
+VideoTimeLine::remove_frames ()
+{
+	for (VideoFrames::iterator i = video_frames.begin(); i != video_frames.end(); ++i ) {
+		VideoImageFrame *frame = (*i);
+		delete frame;
+		(*i) = 0;
+	}
+	video_frames.clear();
+}
+
+VideoImageFrame *
+VideoTimeLine::get_video_frame (framepos_t vfn, int cut, int rightend)
+{
+	if (vfn==0) cut=0;
+	for (VideoFrames::iterator i = video_frames.begin(); i != video_frames.end(); ++i) {
+		VideoImageFrame *frame = (*i);
+		if (abs(frame->get_video_frame_number()-vfn)<=cut
+		    && frame->get_rightend() == rightend) { return frame; }
+	}
+	return 0;
+}
+
+float
+VideoTimeLine::get_apv()
+{
+	// XXX: dup code - TODO use this fn in update_video_timeline()
+	float apv = -1; /* audio frames per video frame; */
+	if (!_session) return apv;
+
+	if (_session->config.get_use_video_file_fps()) {
+		if (video_file_fps == 0 ) return apv;
+	} else {
+		if (_session->timecode_frames_per_second() == 0 ) return apv;
+	}
+
+	if (_session->config.get_videotimeline_pullup()) {
+		apv = _session->frame_rate();
+	} else {
+		apv = _session->nominal_frame_rate();
+	}
+	if (_session->config.get_use_video_file_fps()) {
+		apv /= video_file_fps;
+	} else {
+		apv /= _session->timecode_frames_per_second();
+	}
+	return apv;
+}
+
+void
+VideoTimeLine::update_video_timeline()
+{
+	if (!_session) return;
+
+	if (_session->config.get_use_video_file_fps()) {
+		if (video_file_fps == 0 ) return;
+	} else {
+		if (_session->timecode_frames_per_second() == 0 ) return;
+	}
+
+	double frames_per_unit = editor->unit_to_frame(1.0);
+	framepos_t leftmost_frame =  editor->leftmost_position();
+
+	/* Outline:
+	 * 1) calculate how many frames there should be in current zoom (plus 1 page on each side)
+	 * 2) calculate first frame and distance between video-frames (according to zoom)
+	 * 3) destroy/add frames
+	 * 4) reposition existing frames
+	 * 5) assign framenumber to frames -> request/decode video.
+	 */
+
+	/* video-file and session properties */
+	double display_vframe_width; /* unit: pixels ; width of one thumbnail in the timeline */
+	float apv; /* audio frames per video frame; */
+	framepos_t leftmost_video_frame; /* unit: video-frame number ; temporary var -> vtl_start */
+
+	/* variables needed to render videotimeline -- what needs to computed first */
+	framepos_t vtl_start; /* unit: audio-frames ; first displayed video-frame */
+	framepos_t vtl_dist;  /* unit: audio-frames ; distance between displayed video-frames */
+	unsigned int visible_video_frames; /* number of frames that fit on current canvas */
+
+	if (_session->config.get_videotimeline_pullup()) {
+		apv = _session->frame_rate();
+	} else {
+		apv = _session->nominal_frame_rate();
+	}
+	if (_session->config.get_use_video_file_fps()) {
+		apv /= video_file_fps;
+	} else {
+		apv /= _session->timecode_frames_per_second();
+	}
+
+	display_vframe_width = bar_height * video_aspect_ratio;
+
+	if (apv > frames_per_unit * display_vframe_width) {
+		/* high-zoom: need space between successive video-frames */
+		vtl_dist = rint(apv);
+	} else {
+		/* continous timeline: skip video-frames */
+		vtl_dist = ceil(display_vframe_width * frames_per_unit / apv) * apv;
+	}
+
+	assert (vtl_dist > 0);
+	assert (apv > 0);
+
+#define GOFFSET (video_offset)
+
+	leftmost_video_frame = floor (floor((leftmost_frame - video_start_offset - GOFFSET ) / vtl_dist) * vtl_dist / apv);
+
+	vtl_start = rint (GOFFSET + video_start_offset + leftmost_video_frame * apv);
+	visible_video_frames = 2 + ceil(editor->current_page_frames() / vtl_dist); /* +2 left+right partial frames */
+
+	/* expand timeline (cache next/prev page images) */
+	vtl_start -= visible_video_frames * vtl_dist;
+	visible_video_frames *=3;
+
+	if (vtl_start < GOFFSET ) {
+		visible_video_frames += ceil(vtl_start/vtl_dist);
+		vtl_start = GOFFSET;
+	}
+
+	/* apply video-file constraints */
+	if (vtl_start > video_start_offset + video_duration + GOFFSET ) {
+		visible_video_frames = 0;
+	}
+	/* TODO optimize: compute rather than iterate */
+	while (visible_video_frames > 0 && vtl_start + (visible_video_frames-1) * vtl_dist >= video_start_offset + video_duration + GOFFSET) {
+		--visible_video_frames;
+	}
+
+	if (flush_frames) {
+		remove_frames();
+		flush_frames=false;
+	}
+
+	while (video_frames.size() < visible_video_frames) {
+		VideoImageFrame *frame;
+		frame = new VideoImageFrame(*editor, *videotl_bar_group, display_vframe_width, bar_height, video_server_url, translated_filename());
+		frame->ImgChanged.connect (*this, invalidator (*this), boost::bind (&PublicEditor::queue_visual_videotimeline_update, editor), gui_context());
+		video_frames.push_back(frame);
+	}
+
+	VideoFrames outdated_video_frames;
+	std::list<int> remaining;
+
+	outdated_video_frames = video_frames;
+
+#if 1
+	/* when zoomed out, ignore shifts by +-1 frame
+	 * which can occur due to rounding errors when
+	 * scrolling to a new leftmost-audio frame.
+	 */
+	int cut =1;
+	if (vtl_dist/apv < 3.0) cut =0;
+#else
+	int cut =0;
+#endif
+
+	for (unsigned int vfcount=0; vfcount < visible_video_frames; ++vfcount){
+		framepos_t vfpos = vtl_start + vfcount * vtl_dist; /* unit: audio-frames */
+		framepos_t vframeno = rint ( (vfpos - GOFFSET) / apv); /* unit: video-frames */
+		vfpos = (vframeno * apv ) + GOFFSET; /* audio-frame  corresponding to /rounded/ video-frame */
+
+		int rightend = -1; /* unit: pixels */
+		if (vfpos + vtl_dist > video_start_offset + video_duration + GOFFSET) {
+			rightend = display_vframe_width * (video_start_offset + video_duration + GOFFSET - vfpos) / vtl_dist;
+			//printf("lf(e): %lu\n", vframeno); // XXX
+		}
+		VideoImageFrame * frame = get_video_frame(vframeno, cut, rightend);
+		if (frame) {
+		  frame->set_position(vfpos-leftmost_frame);
+			outdated_video_frames.remove(frame);
+		} else {
+			remaining.push_back(vfcount);
+		}
+	}
+
+	for (VideoFrames::iterator i = outdated_video_frames.begin(); i != outdated_video_frames.end(); ++i ) {
+		VideoImageFrame *frame = (*i);
+		if (remaining.empty()) {
+		  frame->set_position(-2 * vtl_dist); /* move off screen */
+		} else {
+			int vfcount=remaining.front();
+			remaining.pop_front();
+			framepos_t vfpos = vtl_start + vfcount * vtl_dist; /* unit: audio-frames */
+			framepos_t vframeno = rint ((vfpos - GOFFSET) / apv);  /* unit: video-frames */
+			int rightend = -1; /* unit: pixels */
+			if (vfpos + vtl_dist > video_start_offset + video_duration + GOFFSET) {
+				rightend = display_vframe_width * (video_start_offset + video_duration + GOFFSET - vfpos) / vtl_dist;
+				//printf("lf(n): %lu\n", vframeno); // XXX
+			}
+			frame->set_position(vfpos-leftmost_frame);
+			frame->set_videoframe(vframeno, rightend);
+		}
+	}
+}
+
+std::string
+VideoTimeLine::translated_filename ()
+{
+	if (!local_file){
+		return video_filename;
+	} else {
+		return video_map_path(server_docroot, video_filename);
+	}
+}
+
+bool
+VideoTimeLine::video_file_info (std::string filename, bool local)
+{
+	local_file = local;
+	if (filename.at(0) == G_DIR_SEPARATOR || !local_file) {
+		video_filename = filename;
+	}  else {
+		video_filename = Glib::build_filename (_session->session_directory().video_path(), filename);
+	}
+
+	long long int _duration;
+	double _start_offset;
+
+	if (!video_query_info(
+			video_server_url, translated_filename(),
+			video_file_fps, _duration, _start_offset, video_aspect_ratio)) {
+		warning << _("Parsing video file info failed. Is the Video Server running? Is the file readable by the Video Server? Does the docroot match? Is it a video file?") << endmsg;
+		return false;
+	}
+	video_duration = _duration * _session->nominal_frame_rate() / video_file_fps;
+	video_start_offset = _start_offset * _session->nominal_frame_rate();
+
+	if (auto_set_session_fps && video_file_fps != _session->timecode_frames_per_second()) {
+		switch ((int)floorf(video_file_fps*1000.0)) {
+			case 23976:
+				_session->config.set_timecode_format(timecode_23976);
+				break;
+			case 24000:
+				_session->config.set_timecode_format(timecode_24);
+				break;
+			case 24975:
+			case 24976:
+				_session->config.set_timecode_format(timecode_24976);
+				break;
+			case 25000:
+				_session->config.set_timecode_format(timecode_25);
+				break;
+			case 29970:
+				_session->config.set_timecode_format(timecode_2997drop);
+				break;
+			case 30000:
+				_session->config.set_timecode_format(timecode_30);
+				break;
+			case 59940:
+				_session->config.set_timecode_format(timecode_5994);
+				break;
+			case 60000:
+				_session->config.set_timecode_format(timecode_60);
+				break;
+			default:
+				warning << _("Failed to set session-framerate: ") << video_file_fps << _(" does not have a corresponding option setting in Ardour.") << endmsg; /* TODO: gettext arg */
+				break;
+		}
+		_session->config.set_video_pullup(0); /* TODO only set if set_timecode_format() was successful ?!*/
+	}
+	if (video_file_fps != _session->timecode_frames_per_second()) {
+		warning << _("Video file's framerate is not equal to Ardour session timecode's framerate: ")
+		        << video_file_fps << _(" vs ") << _session->timecode_frames_per_second() << endmsg;
+	}
+	flush_local_cache ();
+
+	if (found_xjadeo() && local_file) {
+		GuiUpdate("set-xjadeo-sensitive-on");
+		if (vmonitor && vmonitor->is_started()) {
+			vmonitor->set_fps(video_file_fps);
+			vmonitor->open(video_filename);
+		}
+	} else if (!local_file) {
+		GuiUpdate("set-xjadeo-sensitive-off");
+	}
+	VtlUpdate();
+	return true;
+}
+
+bool
+VideoTimeLine::check_server ()
+{
+	bool ok = false;
+	char url[1024];
+	snprintf(url, sizeof(url), "%s%sstatus"
+			, video_server_url.c_str()
+			, (video_server_url.length()>0 && video_server_url.at(video_server_url.length()-1) == '/')?"":"/"
+			);
+	char *res=curl_http_get(url, NULL);
+	if (res) {
+		if (strstr(res, "status: ok, online.")) { ok = true; }
+		free(res);
+	}
+	return ok;
+}
+
+void
+VideoTimeLine::gui_update(std::string const & t) {
+	/* this is to be called via GuiUpdate() only. */
+	ENSURE_GUI_THREAD (*this, &VideoTimeLine::queue_visual_videotimeline_update)
+	if (t == "videotimeline-update") {
+		editor->queue_visual_videotimeline_update();
+	} else if (t == "set-xjadeo-active-off") {
+		editor->toggle_xjadeo_proc(0);
+	} else if (t == "set-xjadeo-active-on") {
+		editor->toggle_xjadeo_proc(1);
+	} else if (t == "set-xjadeo-sensitive-on") {
+		editor->set_xjadeo_sensitive(true);
+	} else if (t == "set-xjadeo-sensitive-off") {
+		editor->toggle_xjadeo_proc(0);
+		//close_video_monitor();
+		editor->set_xjadeo_sensitive(false);
+	}
+}
+
+void
+VideoTimeLine::set_height (int height) {
+	bar_height = height;
+	flush_local_cache();
+}
+
+void
+VideoTimeLine::vmon_update () {
+	if (vmonitor && vmonitor->is_started()) {
+		vmonitor->set_offset( GOFFSET); // TODO proper re-init xjadeo w/o restart not just offset.
+	}
+}
+
+void
+VideoTimeLine::flush_local_cache () {
+	flush_frames = true;
+	vmon_update();
+}
+
+void
+VideoTimeLine::flush_cache () {
+	flush_local_cache();
+	char url[1024];
+	snprintf(url, sizeof(url), "%s%sadmin/flush_cache"
+			, video_server_url.c_str()
+			, (video_server_url.length()>0 && video_server_url.at(video_server_url.length()-1) == '/')?"":"/"
+			);
+	char *res=curl_http_get(url, NULL);
+	if (res) {
+		free (res);
+	}
+	if (vmonitor && vmonitor->is_started()) {
+		reopen_vmonitor=true;
+		vmonitor->quit();
+	}
+	video_file_info(video_filename, local_file);
+}
+
+/* config */
+void
+VideoTimeLine::parameter_changed (std::string const & p)
+{
+	if (p == "video-server-url") {
+		set_video_server_url (Config->get_video_server_url ());
+	} else if (p == "video-server-docroot") {
+		set_video_server_docroot (Config->get_video_server_docroot ());
+	}
+	if (p == "use-video-file-fps" || p == "videotimeline-pullup" ) { /* session->config parameter */
+		VtlUpdate();
+	}
+}
+
+void
+VideoTimeLine::set_video_server_url(std::string vsu) {
+	flush_local_cache ();
+	video_server_url = vsu;
+	VtlUpdate();
+}
+
+void
+VideoTimeLine::set_video_server_docroot(std::string vsr) {
+	flush_local_cache ();
+	server_docroot = vsr;
+	VtlUpdate();
+}
+
+/* video-monitor for this timeline */
+void
+VideoTimeLine::find_xjadeo () {
+	std::string xjadeo_file_path;
+	if (getenv("XJREMOTE")) {
+		_xjadeo_bin = strdup(getenv("XJREMOTE")); // XXX TODO: free it?!
+	} else if (find_file_in_search_path (SearchPath(Glib::getenv("PATH")), X_("xjremote"), xjadeo_file_path)) {
+		_xjadeo_bin = xjadeo_file_path;
+	}
+	else if (Glib::file_test(X_("/Applications/Jadeo.app/Contents/MacOS/xjremote"), Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_EXECUTABLE)) {
+		_xjadeo_bin = X_("/Applications/Jadeo.app/Contents/MacOS/xjremote");
+	}
+	/* TODO: win32: allow to configure PATH to xjremote */
+	else if (Glib::file_test(X_("C:\\Program Files\\xjadeo\\xjremote.exe"), Glib::FILE_TEST_EXISTS)) {
+		_xjadeo_bin = X_("C:\\Program Files\\xjadeo\\xjremote.exe");
+	}
+	else if (Glib::file_test(X_("C:\\Program Files\\xjadeo\\xjremote.bat"), Glib::FILE_TEST_EXISTS)) {
+		_xjadeo_bin = X_("C:\\Program Files\\xjadeo\\xjremote.bat");
+	}
+	else  {
+		_xjadeo_bin = X_("");
+	}
+}
+
+void
+VideoTimeLine::open_video_monitor(bool interactive) {
+	if (!found_xjadeo()) return;
+	if (!vmonitor) {
+		vmonitor = new VideoMonitor(editor, _xjadeo_bin);
+		vmonitor->set_session(_session);
+		vmonitor->Terminated.connect (sigc::mem_fun (*this, &VideoTimeLine::terminated_video_monitor));
+	} else if (vmonitor->is_started()) {
+		return;
+	}
+
+	int xj_settings_mask = vmonitor->restore_settings_mask();
+	if (_session) {
+		/* load mask from Session */
+		XMLNode* node = _session->extra_xml (X_("XJRestoreSettings"));
+		if (node) {
+			const XMLProperty* prop = node->property (X_("mask"));
+			if (prop) {
+				xj_settings_mask = atoi(prop->value().c_str());
+			}
+		}
+	}
+
+	if (interactive && Config->get_video_monitor_setup_dialog()) {
+		if (open_video_monitor_dialog == 0) {
+			open_video_monitor_dialog = new OpenVideoMonitorDialog(_session);
+		}
+		if (open_video_monitor_dialog->is_visible()) {
+			return;
+		}
+		open_video_monitor_dialog->setup_settings_mask(xj_settings_mask);
+		open_video_monitor_dialog->set_filename(video_filename);
+		Gtk::ResponseType r = (Gtk::ResponseType) open_video_monitor_dialog->run ();
+		open_video_monitor_dialog->hide();
+		if (r != Gtk::RESPONSE_ACCEPT) {
+			GuiUpdate("set-xjadeo-active-off");
+			return;
+		}
+
+		if (_session && (xj_settings_mask != open_video_monitor_dialog->xj_settings_mask()) ) {
+			/* save mask to Session */
+			XMLNode* node = new XMLNode(X_("XJRestoreSettings"));
+			node->add_property (X_("mask"), (const long) open_video_monitor_dialog->xj_settings_mask() );
+			_session->add_extra_xml (*node);
+			_session->set_dirty ();
+		}
+
+		if (open_video_monitor_dialog->show_again()) {
+			Config->set_video_monitor_setup_dialog(false);
+		}
+#if 1
+		vmonitor->set_debug(open_video_monitor_dialog->enable_debug());
+#endif
+		vmonitor->restore_settings_mask(open_video_monitor_dialog->xj_settings_mask());
+	} else {
+		vmonitor->restore_settings_mask(xj_settings_mask);
+	}
+
+
+	if (!vmonitor->start()) {
+		warning << "launching xjadeo failed.." << endmsg;
+		close_video_monitor();
+	} else {
+		GuiUpdate("set-xjadeo-active-on");
+		vmonitor->set_fps(video_file_fps);
+		vmonitor->open(video_filename);
+	}
+}
+
+void
+VideoTimeLine::close_video_monitor() {
+	if (vmonitor && vmonitor->is_started()) {
+		vmonitor->quit();
+	}
+}
+
+void
+VideoTimeLine::terminated_video_monitor () {
+	if (vmonitor) {
+		delete vmonitor;
+	}
+	GuiUpdate("set-xjadeo-active-off");
+	vmonitor=0;
+  if (reopen_vmonitor) {
+		reopen_vmonitor=false;
+		open_video_monitor(false);
+	}
+}
+
+/*
+void
+VideoTimeLine::clear_video_monitor_session_state ()
+{
+	if (vmonitor) {
+		vmonitor->clear_session_state();
+	} else {
+	  if (!_session) { return; }
+		XMLNode* node = new XMLNode(X_("XJSettings"));
+		_session->add_extra_xml (*node);
+		_session->set_dirty ();
+	}
+}
+*/
+
+void
+VideoTimeLine::manual_seek_video_monitor (framepos_t pos)
+{
+	if (!vmonitor) { return; }
+	if (!vmonitor->is_started()) { return; }
+	if (!vmonitor->synced_by_manual_seeks()) { return; }
+	vmonitor->manual_seek(pos, false, GOFFSET); // XXX -> set offset in xjadeo
+}
+
+#endif /* WITH_VIDEOTIMELINE */