/*
Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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,
+ DCP-o-matic 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.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ffmpeg_subtitle_stream.h"
-#include "raw_convert.h"
+#include <dcp/raw_convert.h>
#include <libxml++/libxml++.h>
#include <boost/foreach.hpp>
#include <iostream>
using std::map;
using std::list;
using std::cout;
+using std::make_pair;
+using dcp::raw_convert;
/** Construct a SubtitleStream from a value returned from to_string().
* @param t String returned from to_string().
{
if (version == 32) {
BOOST_FOREACH (cxml::NodePtr i, node->node_children ("Period")) {
- /* In version 32 we assumed that from times were unique, so they weer
- used as identifiers.
+ /* In version 32 we assumed that from times were unique, so they were
+ used as identifiers. All subtitles were image subtitles.
*/
- add_subtitle (
+ add_image_subtitle (
raw_convert<string> (i->string_child ("From")),
ContentTimePeriod (
ContentTime (i->number_child<ContentTime::Type> ("From")),
);
}
} else {
- /* In version 33 we use a hash of various parts of the subtitle as the id */
+ /* In version 33 we use a hash of various parts of the subtitle as the id.
+ <Subtitle> was initially used for image subtitles; later we have
+ <ImageSubtitle> and <TextSubtitle>
+ */
BOOST_FOREACH (cxml::NodePtr i, node->node_children ("Subtitle")) {
- add_subtitle (
+ add_image_subtitle (
+ raw_convert<string> (i->string_child ("Id")),
+ ContentTimePeriod (
+ ContentTime (i->number_child<ContentTime::Type> ("From")),
+ ContentTime (i->number_child<ContentTime::Type> ("To"))
+ )
+ );
+ }
+
+ BOOST_FOREACH (cxml::NodePtr i, node->node_children ("ImageSubtitle")) {
+ add_image_subtitle (
raw_convert<string> (i->string_child ("Id")),
ContentTimePeriod (
ContentTime (i->number_child<ContentTime::Type> ("From")),
)
);
}
+
+ BOOST_FOREACH (cxml::NodePtr i, node->node_children ("TextSubtitle")) {
+ add_text_subtitle (
+ raw_convert<string> (i->string_child ("Id")),
+ ContentTimePeriod (
+ ContentTime (i->number_child<ContentTime::Type> ("From")),
+ ContentTime (i->number_child<ContentTime::Type> ("To"))
+ )
+ );
+ }
+
+ BOOST_FOREACH (cxml::NodePtr i, node->node_children ("Colour")) {
+ _colours[RGBA(i->node_child("From"))] = RGBA (i->node_child("To"));
+ }
}
}
{
FFmpegStream::as_xml (root);
- for (map<string, ContentTimePeriod>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
- xmlpp::Node* node = root->add_child ("Subtitle");
+ as_xml (root, _image_subtitles, "ImageSubtitle");
+ as_xml (root, _text_subtitles, "TextSubtitle");
+
+ for (map<RGBA, RGBA>::const_iterator i = _colours.begin(); i != _colours.end(); ++i) {
+ xmlpp::Node* node = root->add_child("Colour");
+ i->first.as_xml (node->add_child("From"));
+ i->second.as_xml (node->add_child("To"));
+ }
+}
+
+void
+FFmpegSubtitleStream::as_xml (xmlpp::Node* root, PeriodMap const & subs, string node_name) const
+{
+ for (PeriodMap::const_iterator i = subs.begin(); i != subs.end(); ++i) {
+ xmlpp::Node* node = root->add_child (node_name);
node->add_child("Id")->add_child_text (i->first);
node->add_child("From")->add_child_text (raw_convert<string> (i->second.from.get ()));
node->add_child("To")->add_child_text (raw_convert<string> (i->second.to.get ()));
}
void
-FFmpegSubtitleStream::add_subtitle (string id, ContentTimePeriod period)
+FFmpegSubtitleStream::add_image_subtitle (string id, ContentTimePeriod period)
+{
+ DCPOMATIC_ASSERT (_image_subtitles.find (id) == _image_subtitles.end ());
+ _image_subtitles[id] = period;
+}
+
+void
+FFmpegSubtitleStream::add_text_subtitle (string id, ContentTimePeriod period)
+{
+ DCPOMATIC_ASSERT (_text_subtitles.find (id) == _text_subtitles.end ());
+ _text_subtitles[id] = period;
+}
+
+list<ContentTimePeriod>
+FFmpegSubtitleStream::image_subtitles_during (ContentTimePeriod period, bool starting) const
{
- DCPOMATIC_ASSERT (_subtitles.find (id) == _subtitles.end ());
- _subtitles[id] = period;
+ return subtitles_during (period, starting, _image_subtitles);
}
list<ContentTimePeriod>
-FFmpegSubtitleStream::subtitles_during (ContentTimePeriod period, bool starting) const
+FFmpegSubtitleStream::text_subtitles_during (ContentTimePeriod period, bool starting) const
+{
+ return subtitles_during (period, starting, _text_subtitles);
+}
+
+struct PeriodSorter
+{
+ bool operator() (ContentTimePeriod const & a, ContentTimePeriod const & b) {
+ return a.from < b.from;
+ }
+};
+
+list<ContentTimePeriod>
+FFmpegSubtitleStream::subtitles_during (ContentTimePeriod period, bool starting, PeriodMap const & subs) const
{
list<ContentTimePeriod> d;
/* XXX: inefficient */
- for (map<string, ContentTimePeriod>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
- if ((starting && period.contains (i->second.from)) || (!starting && period.overlaps (i->second))) {
+ for (map<string, ContentTimePeriod>::const_iterator i = subs.begin(); i != subs.end(); ++i) {
+ if ((starting && period.contains(i->second.from)) || (!starting && period.overlap(i->second))) {
d.push_back (i->second);
}
}
+ d.sort (PeriodSorter ());
+
return d;
}
ContentTime
FFmpegSubtitleStream::find_subtitle_to (string id) const
{
- map<string, ContentTimePeriod>::const_iterator i = _subtitles.find (id);
- DCPOMATIC_ASSERT (i != _subtitles.end ());
+ PeriodMap::const_iterator i = _image_subtitles.find (id);
+ if (i != _image_subtitles.end ()) {
+ return i->second.to;
+ }
+
+ i = _text_subtitles.find (id);
+ DCPOMATIC_ASSERT (i != _text_subtitles.end ());
return i->second.to;
}
+/** @param id Subtitle id.
+ * @return true if the `from' and `to' times for this id are equal, which indicates
+ * that the `to' time is unknown.
+ */
+bool
+FFmpegSubtitleStream::unknown_to (string id) const
+{
+ PeriodMap::const_iterator i = _image_subtitles.find (id);
+ if (i != _image_subtitles.end ()) {
+ return i->second.from == i->second.to;
+ }
+
+ i = _text_subtitles.find (id);
+ DCPOMATIC_ASSERT (i != _text_subtitles.end ());
+ return i->second.from == i->second.to;
+}
+
/** Add some offset to all the times in the stream */
void
FFmpegSubtitleStream::add_offset (ContentTime offset)
{
- for (map<string, ContentTimePeriod>::iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
+ for (PeriodMap::iterator i = _image_subtitles.begin(); i != _image_subtitles.end(); ++i) {
i->second.from += offset;
i->second.to += offset;
}
+
+ for (PeriodMap::iterator i = _text_subtitles.begin(); i != _text_subtitles.end(); ++i) {
+ i->second.from += offset;
+ i->second.to += offset;
+ }
+}
+
+map<RGBA, RGBA>
+FFmpegSubtitleStream::colours () const
+{
+ return _colours;
+}
+
+void
+FFmpegSubtitleStream::set_colour (RGBA from, RGBA to)
+{
+ _colours[from] = to;
+}
+
+bool
+FFmpegSubtitleStream::has_text () const
+{
+ return !_text_subtitles.empty ();
+}
+
+bool
+FFmpegSubtitleStream::has_image () const
+{
+ return !_image_subtitles.empty ();
+}
+
+void
+FFmpegSubtitleStream::set_subtitle_to (string id, ContentTime to)
+{
+ PeriodMap::iterator i = _image_subtitles.find (id);
+ if (i != _image_subtitles.end ()) {
+ i->second.to = to;
+ } else {
+ i = _text_subtitles.find (id);
+ if (i != _text_subtitles.end ()) {
+ i->second.to = to;
+ } else {
+ DCPOMATIC_ASSERT (false);
+ }
+ }
}