+/* -*- c-basic-offset: 8; default-tab-width: 8; -*- */
+
/*
Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
*/
+#include <libcxml/cxml.h>
#include <boost/shared_ptr.hpp>
#include <boost/lexical_cast.hpp>
#include "playlist.h"
#include "ffmpeg_decoder.h"
#include "ffmpeg_content.h"
#include "imagemagick_decoder.h"
+#include "imagemagick_content.h"
#include "job.h"
+#include "config.h"
+#include "util.h"
+
+#include "i18n.h"
using std::list;
using std::cout;
using std::min;
using std::max;
using std::string;
+using std::stringstream;
+using boost::optional;
using boost::shared_ptr;
using boost::weak_ptr;
using boost::dynamic_pointer_cast;
using boost::lexical_cast;
Playlist::Playlist ()
- : _audio_from (AUDIO_FFMPEG)
+ : _loop (1)
{
}
-void
-Playlist::setup (ContentList content)
+Playlist::Playlist (shared_ptr<const Playlist> other)
+ : _loop (other->_loop)
{
- _audio_from = AUDIO_FFMPEG;
+ for (RegionList::const_iterator i = other->_regions.begin(); i != other->_regions.end(); ++i) {
+ _regions.push_back (Region (i->content->clone(), i->time, this));
+ }
+}
- _video.clear ();
- _sndfile.clear ();
+void
+Playlist::content_changed (weak_ptr<Content> c, int p)
+{
+ ContentChanged (c, p);
+}
- for (list<boost::signals2::connection>::iterator i = _content_connections.begin(); i != _content_connections.end(); ++i) {
- i->disconnect ();
- }
+string
+Playlist::audio_digest () const
+{
+ string t;
- _content_connections.clear ();
-
- for (ContentList::const_iterator i = content.begin(); i != content.end(); ++i) {
- shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (*i);
- if (vc) {
- _video.push_back (vc);
+ for (RegionList::const_iterator i = _regions.begin(); i != _regions.end(); ++i) {
+ if (!dynamic_pointer_cast<const AudioContent> (i->content)) {
+ continue;
}
- shared_ptr<SndfileContent> sc = dynamic_pointer_cast<SndfileContent> (*i);
- if (sc) {
- _sndfile.push_back (sc);
- _audio_from = AUDIO_SNDFILE;
- }
+ t += i->content->digest ();
- _content_connections.push_back ((*i)->Changed.connect (bind (&Playlist::content_changed, this, _1, _2)));
+ shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (i->content);
+ if (fc) {
+ t += lexical_cast<string> (fc->audio_stream()->id);
+ }
}
- Changed ();
+ t += lexical_cast<string> (_loop);
+
+ return md5_digest (t.c_str(), t.length());
}
-ContentAudioFrame
-Playlist::audio_length () const
+string
+Playlist::video_digest () const
{
- ContentAudioFrame len = 0;
+ string t;
- switch (_audio_from) {
- case AUDIO_FFMPEG:
- for (list<shared_ptr<const VideoContent> >::const_iterator i = _video.begin(); i != _video.end(); ++i) {
- shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
- if (fc) {
- len += fc->audio_length ();
- }
+ for (RegionList::const_iterator i = _regions.begin(); i != _regions.end(); ++i) {
+ if (!dynamic_pointer_cast<const VideoContent> (i->content)) {
+ continue;
}
- break;
- case AUDIO_SNDFILE:
- for (list<shared_ptr<const SndfileContent> >::const_iterator i = _sndfile.begin(); i != _sndfile.end(); ++i) {
- len += (*i)->audio_length ();
+
+ t += i->content->digest ();
+ shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (i->content);
+ if (fc && fc->subtitle_stream()) {
+ t += fc->subtitle_stream()->id;
}
- break;
}
- return len;
+ t += lexical_cast<string> (_loop);
+
+ return md5_digest (t.c_str(), t.length());
}
-int
-Playlist::audio_channels () const
+void
+Playlist::set_from_xml (shared_ptr<const cxml::Node> node)
{
- int channels = 0;
-
- switch (_audio_from) {
- case AUDIO_FFMPEG:
- for (list<shared_ptr<const VideoContent> >::const_iterator i = _video.begin(); i != _video.end(); ++i) {
- shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
- if (fc) {
- channels = max (channels, fc->audio_channels ());
- }
- }
- break;
- case AUDIO_SNDFILE:
- for (list<shared_ptr<const SndfileContent> >::const_iterator i = _sndfile.begin(); i != _sndfile.end(); ++i) {
- channels += (*i)->audio_channels ();
- }
- break;
+ list<shared_ptr<cxml::Node> > c = node->node_children ("Region");
+ for (list<shared_ptr<cxml::Node> >::iterator i = c.begin(); i != c.end(); ++i) {
+ _regions.push_back (Region (*i, this));
}
- return channels;
+ _loop = node->number_child<int> ("Loop");
}
-int
-Playlist::audio_frame_rate () const
+void
+Playlist::as_xml (xmlpp::Node* node)
{
- /* XXX: assuming that all content has the same rate */
-
- switch (_audio_from) {
- case AUDIO_FFMPEG:
- {
- shared_ptr<const FFmpegContent> fc = first_ffmpeg ();
- if (fc) {
- return fc->audio_frame_rate ();
- }
- break;
- }
- case AUDIO_SNDFILE:
- return _sndfile.front()->audio_frame_rate ();
+ for (RegionList::iterator i = _regions.begin(); i != _regions.end(); ++i) {
+ i->as_xml (node->add_child ("Region"));
}
- return 0;
+ node->add_child("Loop")->add_child_text(lexical_cast<string> (_loop));
}
-float
-Playlist::video_frame_rate () const
+void
+Playlist::add (shared_ptr<Content> c)
{
- if (_video.empty ()) {
- return 0;
- }
-
- /* XXX: assuming all the same */
- return _video.front()->video_frame_rate ();
+ _regions.push_back (Region (c, 0, this));
+ Changed ();
}
-libdcp::Size
-Playlist::video_size () const
+void
+Playlist::remove (shared_ptr<Content> c)
{
- if (_video.empty ()) {
- return libdcp::Size ();
+ RegionList::iterator i = _regions.begin ();
+ while (i != _regions.end() && i->content != c) {
+ ++i;
+ }
+
+ if (i != _regions.end ()) {
+ _regions.erase (i);
+ Changed ();
}
-
- /* XXX: assuming all the same */
- return _video.front()->video_size ();
}
-ContentVideoFrame
-Playlist::video_length () const
+void
+Playlist::set_loop (int l)
{
- ContentVideoFrame len = 0;
- for (list<shared_ptr<const VideoContent> >::const_iterator i = _video.begin(); i != _video.end(); ++i) {
- len += (*i)->video_length ();
- }
-
- return len;
+ _loop = l;
+ Changed ();
}
bool
-Playlist::has_audio () const
+Playlist::has_subtitles () const
{
- if (!_sndfile.empty ()) {
- return true;
- }
-
- for (list<shared_ptr<const VideoContent> >::const_iterator i = _video.begin(); i != _video.end(); ++i) {
- shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
- if (fc && fc->audio_stream ()) {
+ for (RegionList::const_iterator i = _regions.begin(); i != _regions.end(); ++i) {
+ shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<FFmpegContent> (i->content);
+ if (fc && !fc->subtitle_streams().empty()) {
return true;
}
}
-
+
return false;
}
-void
-Playlist::content_changed (weak_ptr<Content> c, int p)
+Playlist::Region::Region (shared_ptr<Content> c, Time t, Playlist* p)
+ : content (c)
+ , time (t)
{
- ContentChanged (c, p);
+ connection = c->Changed.connect (bind (&Playlist::content_changed, p, _1, _2));
}
-shared_ptr<const FFmpegContent>
-Playlist::first_ffmpeg () const
+Playlist::Region::Region (shared_ptr<const cxml::Node> node, Playlist* p)
{
- for (list<shared_ptr<const VideoContent> >::const_iterator i = _video.begin(); i != _video.end(); ++i) {
- shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
- if (fc) {
- return fc;
- }
+ shared_ptr<const cxml::Node> content_node = node->node_child ("Content");
+ string const type = content_node->string_child ("Type");
+
+ if (type == "FFmpeg") {
+ content.reset (new FFmpegContent (content_node));
+ } else if (type == "ImageMagick") {
+ content.reset (new ImageMagickContent (content_node));
+ } else if (type == "Sndfile") {
+ content.reset (new SndfileContent (content_node));
}
- return shared_ptr<const FFmpegContent> ();
+ time = node->number_child<Time> ("Time");
+ connection = content->Changed.connect (bind (&Playlist::content_changed, p, _1, _2));
}
-
-AudioMapping
-Playlist::default_audio_mapping () const
+void
+Playlist::Region::as_xml (xmlpp::Node* node) const
{
- AudioMapping m;
-
- switch (_audio_from) {
- case AUDIO_FFMPEG:
- {
- shared_ptr<const FFmpegContent> fc = first_ffmpeg ();
- if (!fc) {
- break;
- }
-
- /* XXX: assumes all the same */
- if (fc->audio_channels() == 1) {
- /* Map mono sources to centre */
- m.add (AudioMapping::Channel (fc, 0), libdcp::CENTRE);
- } else {
- int const N = min (fc->audio_channels (), MAX_AUDIO_CHANNELS);
- /* Otherwise just start with a 1:1 mapping */
- for (int i = 0; i < N; ++i) {
- m.add (AudioMapping::Channel (fc, i), (libdcp::Channel) i);
- }
- }
- break;
- }
+ xmlpp::Node* sub = node->add_child ("Content");
+ content->as_xml (sub);
+ node->add_child ("Time")->add_child_text (lexical_cast<string> (time));
+}
- case AUDIO_SNDFILE:
- {
- int n = 0;
- for (list<shared_ptr<const SndfileContent> >::const_iterator i = _sndfile.begin(); i != _sndfile.end(); ++i) {
- for (int j = 0; j < (*i)->audio_channels(); ++j) {
- m.add (AudioMapping::Channel (*i, j), (libdcp::Channel) n);
- ++n;
- if (n >= MAX_AUDIO_CHANNELS) {
- break;
- }
- }
- if (n >= MAX_AUDIO_CHANNELS) {
- break;
- }
- }
- break;
- }
- }
+class FrameRateCandidate
+{
+public:
+ FrameRateCandidate (float source_, int dcp_)
+ : source (source_)
+ , dcp (dcp_)
+ {}
- return m;
-}
+ float source;
+ int dcp;
+};
-string
-Playlist::audio_digest () const
+int
+Playlist::best_dcp_frame_rate () const
{
- string t;
-
- switch (_audio_from) {
- case AUDIO_FFMPEG:
- for (list<shared_ptr<const VideoContent> >::const_iterator i = _video.begin(); i != _video.end(); ++i) {
- shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
- if (fc) {
- t += (*i)->digest ();
- t += lexical_cast<string> (fc->audio_stream()->id);
+ list<int> const allowed_dcp_frame_rates = Config::instance()->allowed_dcp_frame_rates ();
+
+ /* Work out what rates we could manage, including those achieved by using skip / repeat. */
+ list<FrameRateCandidate> candidates;
+
+ /* Start with the ones without skip / repeat so they will get matched in preference to skipped/repeated ones */
+ for (list<int>::const_iterator i = allowed_dcp_frame_rates.begin(); i != allowed_dcp_frame_rates.end(); ++i) {
+ candidates.push_back (FrameRateCandidate (*i, *i));
+ }
+
+ /* Then the skip/repeat ones */
+ for (list<int>::const_iterator i = allowed_dcp_frame_rates.begin(); i != allowed_dcp_frame_rates.end(); ++i) {
+ candidates.push_back (FrameRateCandidate (float (*i) / 2, *i));
+ candidates.push_back (FrameRateCandidate (float (*i) * 2, *i));
+ }
+
+ /* Pick the best one, bailing early if we hit an exact match */
+ float error = std::numeric_limits<float>::max ();
+ optional<FrameRateCandidate> best;
+ list<FrameRateCandidate>::iterator i = candidates.begin();
+ while (i != candidates.end()) {
+
+ float this_error = std::numeric_limits<float>::max ();
+ for (RegionList::const_iterator j = _regions.begin(); j != _regions.end(); ++j) {
+ shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (j->content);
+ if (!vc) {
+ continue;
}
+
+ this_error += fabs (i->source - vc->video_frame_rate ());
}
- break;
- case AUDIO_SNDFILE:
- for (list<shared_ptr<const SndfileContent> >::const_iterator i = _sndfile.begin(); i != _sndfile.end(); ++i) {
- t += (*i)->digest ();
+
+ if (this_error < error) {
+ error = this_error;
+ best = *i;
}
- break;
+
+ ++i;
}
- return md5_digest (t.c_str(), t.length());
+ if (!best) {
+ return 24;
+ }
+
+ return best->dcp;
}
-string
-Playlist::video_digest () const
+Time
+Playlist::length (shared_ptr<const Film> film) const
{
- string t;
-
- for (list<shared_ptr<const VideoContent> >::const_iterator i = _video.begin(); i != _video.end(); ++i) {
- t += (*i)->digest ();
- shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
- if (fc && fc->subtitle_stream()) {
- t += fc->subtitle_stream()->id;
- }
+ Time len = 0;
+ for (RegionList::const_iterator i = _regions.begin(); i != _regions.end(); ++i) {
+ Time const t = i->time + i->content->length (film);
+ len = max (len, t);
}
- return md5_digest (t.c_str(), t.length());
+ return len;
}
projects / dcpomatic.git / blobdiff