13
0
livetrax/gtk2_ardour/export_video_dialog.cc
Robin Gareus 0b5e502546
Video import/export overhaul and ffmpeg-5.0 compat
* Update commandline parameters for ffmpeg 5.0
* Simplify video-export, allow only standard settings
* Check ffmpeg exit code and parse errors
* Fix SessionhandleRef on audio-import (clear import status)
* Cleanup and reformat sourcecode
2022-04-01 01:35:08 +02:00

721 lines
23 KiB
C++

/*
* Copyright (C) 2013-2015 John Emmas <john@creativepost.co.uk>
* Copyright (C) 2013-2018 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2013-2019 Robin Gareus <robin@gareus.org>
* Copyright (C) 2015 André Nusser <andre.nusser@googlemail.com>
* Copyright (C) 2016 Tim Mayberry <mojofunk@gmail.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <cstdio>
#include <iomanip>
#include <sstream>
#include <string>
#include <sigc++/bind.h>
#include <gtkmm/filechooserdialog.h>
#include <gtkmm/frame.h>
#include <gtkmm/stock.h>
#include <gtkmm/table.h>
#include "pbd/convert.h"
#include "pbd/error.h"
#include "ardour/session.h"
#include "ardour/session_directory.h"
#include "ardour_ui.h"
#include "gui_thread.h"
#include "ardour/export_channel_configuration.h"
#include "ardour/export_filename.h"
#include "ardour/export_format_specification.h"
#include "ardour/export_handler.h"
#include "ardour/export_timespan.h"
#include "ardour/session_metadata.h"
#include "ardour_message.h"
#include "export_video_dialog.h"
#include "utils_videotl.h"
#include "pbd/i18n.h"
using namespace Gtk;
using namespace std;
using namespace PBD;
using namespace ARDOUR;
using namespace VideoUtils;
ExportVideoDialog::ExportVideoDialog ()
: ArdourDialog (_("Export Video File "))
, _aborted (false)
, _normalize (false)
, _previous_progress (0)
, _transcoder (0)
, outfn_path_label (_("File:"), Gtk::ALIGN_LEFT)
, outfn_browse_button (_("Browse"))
, invid_path_label (_("Video:"), Gtk::ALIGN_LEFT)
, invid_browse_button (_("Browse"))
, transcode_button (_("Export"))
, abort_button (_("Abort"))
, progress_box (0)
, normalize_checkbox (_("Normalize Audio"))
, meta_checkbox (_("Include Session Metadata"))
, debug_checkbox (_("Debug Mode: Print ffmpeg command and output to stdout."))
{
set_name ("ExportVideoDialog");
set_modal (true);
set_skip_taskbar_hint (true);
set_resizable (false);
Gtk::Label* l;
vbox = manage (new VBox);
HBox* path_hbox;
/* check if ffmpeg can be found */
_transcoder = new TranscodeFfmpeg (X_(""));
if (!_transcoder->ffexec_ok ()) {
l = manage (new Label (_("ffmpeg installation was not found. Video Export is not possible. See the Log window for more information."), Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER, false));
l->set_line_wrap ();
vbox->pack_start (*l, false, false, 8);
get_vbox ()->pack_start (*vbox, false, false);
add_button (Stock::OK, RESPONSE_CANCEL);
show_all_children ();
delete _transcoder;
_transcoder = 0;
return;
}
delete _transcoder;
_transcoder = 0;
Gtk::Frame* f;
Table* t;
f = manage (new Gtk::Frame (_("Output (file extension defines format)")));
path_hbox = manage (new HBox);
path_hbox->pack_start (outfn_path_label, false, false, 3);
path_hbox->pack_start (outfn_path_entry, true, true, 3);
path_hbox->pack_start (outfn_browse_button, false, false, 3);
f->add (*path_hbox);
path_hbox->set_border_width (2);
vbox->pack_start (*f, false, false, 4);
f = manage (new Gtk::Frame (_("Input")));
VBox* input_box = manage (new VBox);
path_hbox = manage (new HBox);
path_hbox->pack_start (invid_path_label, false, false, 3);
path_hbox->pack_start (invid_path_entry, true, true, 3);
path_hbox->pack_start (invid_browse_button, false, false, 3);
input_box->pack_start (*path_hbox, false, false, 2);
path_hbox = manage (new HBox);
l = manage (new Label (_("Audio:"), ALIGN_LEFT, ALIGN_CENTER, false));
path_hbox->pack_start (*l, false, false, 3);
l = manage (new Label (_("Master Bus"), ALIGN_LEFT, ALIGN_CENTER, false));
path_hbox->pack_start (*l, false, false, 2);
input_box->pack_start (*path_hbox, false, false, 2);
input_box->set_border_width (2);
f->add (*input_box);
vbox->pack_start (*f, false, false, 4);
outfn_path_entry.set_width_chars (38);
f = manage (new Gtk::Frame (_("Settings")));
t = manage (new Table (3, 2));
t->set_border_width (2);
t->set_spacings (4);
int ty = 0;
l = manage (new Label (_("Range:"), ALIGN_LEFT, ALIGN_CENTER, false));
t->attach (*l, 0, 1, ty, ty + 1);
t->attach (insnd_combo, 1, 2, ty, ty + 1);
ty++;
t->attach (normalize_checkbox, 0, 2, ty, ty + 1);
ty++;
t->attach (meta_checkbox, 0, 2, ty, ty + 1);
ty++;
t->attach (debug_checkbox, 0, 2, ty, ty + 1);
ty++;
f->add (*t);
vbox->pack_start (*f, false, true, 4);
get_vbox ()->set_spacing (4);
get_vbox ()->pack_start (*vbox, false, false);
progress_box = manage (new VBox);
progress_box->pack_start (pbar, false, false);
progress_box->pack_start (abort_button, false, false);
get_vbox ()->pack_start (*progress_box, false, false);
outfn_browse_button.signal_clicked ().connect (sigc::mem_fun (*this, &ExportVideoDialog::open_outfn_dialog));
invid_browse_button.signal_clicked ().connect (sigc::mem_fun (*this, &ExportVideoDialog::open_invid_dialog));
transcode_button.signal_clicked ().connect (sigc::mem_fun (*this, &ExportVideoDialog::launch_export));
abort_button.signal_clicked ().connect (sigc::mem_fun (*this, &ExportVideoDialog::abort_clicked));
invid_path_entry.signal_changed ().connect (sigc::mem_fun (*this, &ExportVideoDialog::set_original_file_information));
cancel_button = add_button (Stock::CANCEL, RESPONSE_CANCEL);
get_action_area ()->pack_start (transcode_button, false, false);
show_all_children ();
progress_box->set_no_show_all ();
progress_box->hide ();
}
ExportVideoDialog::~ExportVideoDialog ()
{
if (_transcoder) {
delete _transcoder;
_transcoder = 0;
}
}
void
ExportVideoDialog::set_original_file_information ()
{
assert (_transcoder == 0);
string infile = invid_path_entry.get_text ();
if (infile.empty () || !Glib::file_test (infile, Glib::FILE_TEST_EXISTS)) {
transcode_button.set_sensitive (false);
return;
}
_transcoder = new TranscodeFfmpeg (infile);
transcode_button.set_sensitive (_transcoder->probe_ok ());
delete _transcoder;
_transcoder = 0;
}
void
ExportVideoDialog::apply_state (TimeSelection& tme, bool range)
{
_export_range = tme;
outfn_path_entry.set_text (_session->session_directory ().export_path () + G_DIR_SEPARATOR + "export.mp4");
// TODO remember setting for export-range.. somehow, (let explicit range override)
sampleoffset_t av_offset = ARDOUR_UI::instance ()->video_timeline->get_offset ();
insnd_combo.remove_all ();
insnd_combo.append_text (_("from session start marker to session end marker"));
if (av_offset < 0) {
insnd_combo.append_text (_("from 00:00:00:00 to the video end"));
} else {
insnd_combo.append_text (_("from video start to video end"));
}
if (!_export_range.empty ()) {
insnd_combo.append_text (_("Selected range")); // TODO show _export_range.start() -> _export_range.end_sample()
}
if (range) {
insnd_combo.set_active (2);
} else {
insnd_combo.set_active (0);
}
normalize_checkbox.set_active (false);
meta_checkbox.set_active (false);
XMLNode* node = _session->extra_xml (X_("Videotimeline"));
bool filenameset = false;
if (node) {
string filename;
if (node->get_property (X_("OriginalVideoFile"), filename)) {
if (Glib::file_test (filename, Glib::FILE_TEST_EXISTS)) {
invid_path_entry.set_text (filename);
filenameset = true;
}
}
bool local_file;
if (!filenameset && node->get_property (X_("Filename"), filename) &&
node->get_property (X_("LocalFile"), local_file) && local_file) {
if (filename.at (0) != G_DIR_SEPARATOR) {
filename = Glib::build_filename (_session->session_directory ().video_path (), filename);
}
if (Glib::file_test (filename, Glib::FILE_TEST_EXISTS)) {
invid_path_entry.set_text (filename);
filenameset = true;
}
}
}
if (!filenameset) {
invid_path_entry.set_text (X_(""));
}
node = _session->extra_xml (X_("Videoexport"));
if (node) {
bool yn;
string str;
if (node->get_property (X_("NormalizeAudio"), yn)) {
normalize_checkbox.set_active (yn);
}
if (node->get_property (X_("Metadata"), yn)) {
meta_checkbox.set_active (yn);
}
}
set_original_file_information ();
show_all_children ();
if (progress_box) {
progress_box->hide ();
}
}
XMLNode&
ExportVideoDialog::get_state ()
{
XMLNode* node = new XMLNode (X_("Videoexport"));
node->set_property (X_("NormalizeAudio"), normalize_checkbox.get_active ());
node->set_property (X_("Metadata"), meta_checkbox.get_active ());
return *node;
}
void
ExportVideoDialog::set_state (const XMLNode&)
{
}
void
ExportVideoDialog::abort_clicked ()
{
_aborted = true;
if (_transcoder) {
_transcoder->cancel ();
}
}
void
ExportVideoDialog::update_progress (samplecnt_t c, samplecnt_t a)
{
if (a == 0 || c > a) {
pbar.set_pulse_step (.1);
pbar.pulse ();
} else {
double progress = (double)c / (double)a;
progress = progress / (_normalize ? 3.0 : 2.0);
if (_normalize) {
progress += 2.0 / 3.0;
} else {
progress += .5;
}
pbar.set_fraction (progress);
}
}
gint
ExportVideoDialog::audio_progress_display ()
{
string status_text;
double progress = -1.0;
switch (status->active_job) {
case ExportStatus::Normalizing:
pbar.set_text (_("Normalizing audio"));
progress = ((float)status->current_postprocessing_cycle) / status->total_postprocessing_cycles;
progress = (progress + 1.0) / 3.0;
break;
case ExportStatus::Exporting:
pbar.set_text (_("Exporting audio"));
progress = ((float)status->processed_samples_current_timespan) / status->total_samples_current_timespan;
progress = progress / (_normalize ? 3.0 : 2.0);
break;
default:
pbar.set_text (_("Exporting audio"));
break;
}
if (progress < _previous_progress) {
/* Work around gtk bug */
pbar.hide ();
pbar.show ();
}
_previous_progress = progress;
if (progress >= 0) {
pbar.set_fraction (progress);
} else {
pbar.set_pulse_step (.1);
pbar.pulse ();
}
return TRUE;
}
void
ExportVideoDialog::finished (int status)
{
delete _transcoder;
_transcoder = 0;
if (_aborted || status != 0) {
if (!_aborted) {
ARDOUR_UI::instance()->popup_error(_("Video transcoding failed."));
}
::g_unlink (outfn_path_entry.get_text ().c_str ());
::g_unlink (_insnd.c_str ());
Gtk::Dialog::response (RESPONSE_CANCEL);
} else {
if (!debug_checkbox.get_active ()) {
::g_unlink (_insnd.c_str ());
}
Gtk::Dialog::response (RESPONSE_ACCEPT);
}
}
void
ExportVideoDialog::launch_export ()
{
/* remember current settings.
* needed because apply_state() acts on both:
* "Videotimeline" and "Video Export" extra XML
* as well as current _session settings
*/
_session->add_extra_xml (get_state ());
string outfn = outfn_path_entry.get_text ();
if (!confirm_video_outfn (*this, outfn)) {
return;
}
vbox->hide ();
cancel_button->hide ();
transcode_button.hide ();
pbar.set_size_request (300, -1);
pbar.set_text (_("Exporting Audio..."));
progress_box->show ();
_aborted = false;
_normalize = normalize_checkbox.get_active ();
/* export audio track */
ExportTimespanPtr tsp = _session->get_export_handler ()->add_timespan ();
boost::shared_ptr<ExportChannelConfiguration> ccp = _session->get_export_handler ()->add_channel_config ();
boost::shared_ptr<ARDOUR::ExportFilename> fnp = _session->get_export_handler ()->add_filename ();
boost::shared_ptr<AudioGrapher::BroadcastInfo> b;
XMLTree tree;
string vtl_samplerate = "48000";
string vtl_normalize = _normalize ? "true" : "false";
tree.read_buffer (std::string (
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
"<ExportFormatSpecification name=\"VTL-WAV-16\" id=\"3094591e-ccb9-4385-a93f-c9955ffeb1f0\">"
" <Encoding id=\"F_WAV\" type=\"T_Sndfile\" extension=\"wav\" name=\"WAV\" has-sample-format=\"true\" channel-limit=\"256\"/>"
" <SampleRate rate=\"" + vtl_samplerate + "\"/>"
" <SRCQuality quality=\"SRC_SincBest\"/>"
" <EncodingOptions>"
" <Option name=\"sample-format\" value=\"SF_16\"/>"
" <Option name=\"dithering\" value=\"D_None\"/>"
" <Option name=\"tag-metadata\" value=\"true\"/>"
" <Option name=\"tag-support\" value=\"false\"/>"
" <Option name=\"broadcast-info\" value=\"false\"/>"
" </EncodingOptions>"
" <Processing>"
" <Normalize enabled=\"" + vtl_normalize + "\" target=\"0\"/>"
" <Silence>"
" <Start>"
" <Trim enabled=\"false\"/>"
" <Add enabled=\"false\">"
" <Duration format=\"Timecode\" hours=\"0\" minutes=\"0\" seconds=\"0\" frames=\"0\"/>"
" </Add>"
" </Start>"
" <End>"
" <Trim enabled=\"false\"/>"
" <Add enabled=\"false\">"
" <Duration format=\"Timecode\" hours=\"0\" minutes=\"0\" seconds=\"0\" frames=\"0\"/>"
" </Add>"
" </End>"
" </Silence>"
" </Processing>"
"</ExportFormatSpecification>")
.c_str ());
boost::shared_ptr<ExportFormatSpecification> fmp = _session->get_export_handler ()->add_format (*tree.root ());
/* set up range */
samplepos_t start, end;
start = end = 0;
if (insnd_combo.get_active_row_number () == 1) {
_transcoder = new TranscodeFfmpeg (invid_path_entry.get_text ());
if (_transcoder->probe_ok () && _transcoder->get_fps () > 0) {
end = _transcoder->get_duration () * _session->nominal_sample_rate () / _transcoder->get_fps ();
} else {
warning << _("Export Video: Cannot query duration of video-file, using duration from timeline instead.") << endmsg;
end = ARDOUR_UI::instance ()->video_timeline->get_duration ();
}
if (_transcoder) {
delete _transcoder;
_transcoder = 0;
}
sampleoffset_t av_offset = ARDOUR_UI::instance ()->video_timeline->get_offset ();
#if 0 /* DEBUG */
printf("audio-range -- AV offset: %lld\n", av_offset);
#endif
if (av_offset > 0) {
start = av_offset;
}
end += av_offset;
} else if (insnd_combo.get_active_row_number () == 2) {
start = ARDOUR_UI::instance ()->video_timeline->quantify_samples_to_apv (_export_range.start_sample ());
end = ARDOUR_UI::instance ()->video_timeline->quantify_samples_to_apv (_export_range.end_sample ());
}
if (end <= 0) {
start = _session->current_start_sample ();
end = _session->current_end_sample ();
}
#if 0 /* DEBUG */
printf("audio export-range %lld -> %lld\n", start, end);
#endif
const sampleoffset_t vstart = ARDOUR_UI::instance ()->video_timeline->get_offset ();
const sampleoffset_t vend = vstart + ARDOUR_UI::instance ()->video_timeline->get_duration ();
if ((start >= end) || (end < vstart) || (start > vend)) {
warning << _("Export Video: export-range does not include video.") << endmsg;
delete _transcoder;
_transcoder = 0;
Gtk::Dialog::response (RESPONSE_CANCEL);
return;
}
tsp->set_range (start, end);
tsp->set_name ("mysession");
tsp->set_range_id ("session");
/* add master outs as default */
IO* master_out = _session->master_out ()->output ().get ();
if (!master_out) {
warning << _("Export Video: No Master Out Ports to Connect for Audio Export") << endmsg;
delete _transcoder;
_transcoder = 0;
Gtk::Dialog::response (RESPONSE_CANCEL);
return;
}
for (uint32_t n = 0; n < master_out->n_ports ().n_audio (); ++n) {
PortExportChannel* channel = new PortExportChannel ();
channel->add_port (master_out->audio (n));
ExportChannelPtr chan_ptr (channel);
ccp->register_channel (chan_ptr);
}
/* outfile */
fnp->set_timespan (tsp);
fnp->set_label ("vtl");
fnp->include_label = true;
_insnd = fnp->get_path (fmp);
/* do sound export */
fmp->set_soundcloud_upload (false);
_session->get_export_handler ()->reset ();
_session->get_export_handler ()->add_export_config (tsp, ccp, fmp, fnp, b);
_session->get_export_handler ()->do_export ();
status = _session->get_export_status ();
_audio_progress_connection = Glib::signal_timeout ().connect (sigc::mem_fun (*this, &ExportVideoDialog::audio_progress_display), 100);
_previous_progress = 0.0;
while (status->running ()) {
if (_aborted) {
status->abort ();
}
if (gtk_events_pending ()) {
gtk_main_iteration ();
} else {
Glib::usleep (10000);
}
}
_audio_progress_connection.disconnect ();
status->finish (TRS_UI);
if (status->aborted ()) {
::g_unlink (_insnd.c_str ());
delete _transcoder;
_transcoder = 0;
Gtk::Dialog::response (RESPONSE_CANCEL);
return;
}
pbar.set_text (_("Encoding Video..."));
encode_video ();
}
void
ExportVideoDialog::encode_video ()
{
std::string outfn = outfn_path_entry.get_text ();
std::string invid = invid_path_entry.get_text ();
_transcoder = new TranscodeFfmpeg (invid);
if (!_transcoder->ffexec_ok ()) {
/* ffmpeg binary was not found. TranscodeFfmpeg prints a warning */
::g_unlink (_insnd.c_str ());
delete _transcoder;
_transcoder = 0;
Gtk::Dialog::response (RESPONSE_CANCEL);
return;
}
if (!_transcoder->probe_ok ()) {
/* video input file can not be read */
warning << _("Export Video: Video input file cannot be read.") << endmsg;
::g_unlink (_insnd.c_str ());
delete _transcoder;
_transcoder = 0;
Gtk::Dialog::response (RESPONSE_CANCEL);
return;
}
TranscodeFfmpeg::FFSettings ffs; /* = transcoder->default_encoder_settings(); */
ffs.clear ();
bool map = true;
sampleoffset_t av_offset = ARDOUR_UI::instance ()->video_timeline->get_offset ();
double duration_s = 0;
if (insnd_combo.get_active_row_number () == 0) {
/* session start to session end */
samplecnt_t duration_f = _session->current_end_sample () - _session->current_start_sample ();
duration_s = (double)duration_f / (double)_session->nominal_sample_rate ();
} else if (insnd_combo.get_active_row_number () == 2) {
/* selected range */
duration_s = _export_range.length_samples () / (double)_session->nominal_sample_rate ();
} else {
/* video start to end */
samplecnt_t duration_f = ARDOUR_UI::instance ()->video_timeline->get_duration ();
if (av_offset < 0) {
duration_f += av_offset;
}
duration_s = (double)duration_f / (double)_session->nominal_sample_rate ();
}
std::ostringstream osstream;
osstream << duration_s;
ffs["-t"] = osstream.str ();
_transcoder->set_duration (duration_s * _transcoder->get_fps ());
if (insnd_combo.get_active_row_number () == 0 || insnd_combo.get_active_row_number () == 2) {
samplepos_t start, snend;
const sampleoffset_t vid_duration = ARDOUR_UI::instance ()->video_timeline->get_duration ();
if (insnd_combo.get_active_row_number () == 0) {
start = _session->current_start_sample ();
snend = _session->current_end_sample ();
} else {
start = _export_range.start_sample ();
snend = _export_range.end_sample ();
}
#if 0 /* DEBUG */
printf("AV offset: %lld Vid-len: %lld Vid-end: %lld || start:%lld || end:%lld\n",
av_offset, vid_duration, av_offset+vid_duration, start, snend); // XXX
#endif
if (av_offset > start && av_offset + vid_duration < snend) {
_transcoder->set_leadinout ((av_offset - start) / (double)_session->nominal_sample_rate (),
(snend - (av_offset + vid_duration)) / (double)_session->nominal_sample_rate ());
} else if (av_offset > start) {
_transcoder->set_leadinout ((av_offset - start) / (double)_session->nominal_sample_rate (), 0);
} else if (av_offset + vid_duration < snend) {
_transcoder->set_leadinout (0, (snend - (av_offset + vid_duration)) / (double)_session->nominal_sample_rate ());
_transcoder->set_avoffset ((av_offset - start) / (double)_session->nominal_sample_rate ());
}
#if 0
else if (start > av_offset) {
std::ostringstream osstream; osstream << ((start - av_offset) / (double)_session->nominal_sample_rate());
ffs["-ss"] = osstream.str();
}
#endif
else {
_transcoder->set_avoffset ((av_offset - start) / (double)_session->nominal_sample_rate ());
}
} else if (av_offset < 0) {
/* from 00:00:00:00 to video-end */
_transcoder->set_avoffset (av_offset / (double)_session->nominal_sample_rate ());
}
/* NOTE: type (MetaDataMap) == type (FFSettings) == map<string, string> */
ARDOUR::SessionMetadata::MetaDataMap meta = _transcoder->default_meta_data ();
if (meta_checkbox.get_active ()) {
ARDOUR::SessionMetadata* session_data = ARDOUR::SessionMetadata::Metadata ();
session_data->av_export_tag (meta);
}
if (debug_checkbox.get_active ()) {
_transcoder->set_debug (true);
}
_transcoder->Progress.connect (*this, invalidator (*this), boost::bind (&ExportVideoDialog::update_progress, this, _1, _2), gui_context ());
_transcoder->Finished.connect (*this, invalidator (*this), boost::bind (&ExportVideoDialog::finished, this, _1), gui_context ());
if (!_transcoder->encode (outfn, _insnd, invid, ffs, meta, map)) {
ARDOUR_UI::instance ()->popup_error (_("Transcoding failed."));
delete _transcoder;
_transcoder = 0;
Gtk::Dialog::response (RESPONSE_CANCEL);
return;
}
}
void
ExportVideoDialog::open_outfn_dialog ()
{
FileChooserDialog dialog (_("Save Exported Video File"), FILE_CHOOSER_ACTION_SAVE);
Gtkmm2ext::add_volume_shortcuts (dialog);
dialog.set_filename (outfn_path_entry.get_text ());
dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
dialog.add_button (Stock::OK, RESPONSE_OK);
int result = dialog.run ();
if (result == RESPONSE_OK) {
std::string filename = dialog.get_filename ();
if (filename.length ()) {
outfn_path_entry.set_text (filename);
}
std::string ext = get_file_extension (filename);
if (ext != "mp4" || ext != "mov" || ext != "mkv") {
dialog.hide ();
ArdourMessageDialog msg (_("The file extension defines the format and codec.\nPrefer to use .mp4, .mov or .mkv. Otherwise encoding may fail."));
msg.run ();
}
}
}
void
ExportVideoDialog::open_invid_dialog ()
{
FileChooserDialog dialog (_("Input Video File"), FILE_CHOOSER_ACTION_OPEN);
Gtkmm2ext::add_volume_shortcuts (dialog);
dialog.set_filename (invid_path_entry.get_text ());
dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
dialog.add_button (Stock::OK, RESPONSE_OK);
int result = dialog.run ();
if (result == RESPONSE_OK) {
std::string filename = dialog.get_filename ();
if (!filename.empty ()) {
invid_path_entry.set_text (filename);
}
}
}