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livetrax/gtk2_ardour/video_timeline.cc

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/*
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) {
#if 1 /* temp debug/devel message */
// TODO - call xjremote remotely.
printf("the given video file can not be accessed on localhost, video monitoring is not currently supported for this case\n");
GuiUpdate("set-xjadeo-sensitive-off");
#endif
}
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_("");
warning << _("Video-monitor 'xjadeo' was not found. Please install http://xjadeo.sf.net/ "
"(a custom path to xjadeo can be specified by setting the XJREMOTE environment variable. "
"It should point to an application compatible with xjadeo's remote-control interface 'xjremote').")
<< endmsg;
}
}
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 */