X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fcontent.cc;h=2593c01df2ca7a569cf48f101d55883840dd0bed;hp=7afbf924f63912c5631caf1a8b138583ad3ca616;hb=bf0fb7f4f556946c18da151e468f237d9ca96094;hpb=291e2fe2e7df95019feba8097b68b31ec64be794 diff --git a/src/lib/content.cc b/src/lib/content.cc index 7afbf924f..2593c01df 100644 --- a/src/lib/content.cc +++ b/src/lib/content.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2013-2015 Carl Hetherington + Copyright (C) 2013-2018 Carl Hetherington This file is part of DCP-o-matic. @@ -23,14 +23,18 @@ */ #include "content.h" +#include "change_signaller.h" #include "util.h" #include "content_factory.h" +#include "video_content.h" +#include "audio_content.h" +#include "text_content.h" #include "exceptions.h" #include "film.h" -#include "safe_stringstream.h" #include "job.h" #include "compose.hpp" -#include "raw_convert.h" +#include +#include #include #include #include @@ -45,6 +49,10 @@ using std::vector; using std::max; using std::pair; using boost::shared_ptr; +using boost::optional; +using dcp::raw_convert; +using dcp::locale_convert; +using namespace dcpomatic; int const ContentProperty::PATH = 400; int const ContentProperty::POSITION = 401; @@ -53,9 +61,8 @@ int const ContentProperty::TRIM_START = 403; int const ContentProperty::TRIM_END = 404; int const ContentProperty::VIDEO_FRAME_RATE = 405; -Content::Content (shared_ptr film) - : _film (film) - , _position (0) +Content::Content () + : _position (0) , _trim_start (0) , _trim_end (0) , _change_signals_frequent (false) @@ -63,9 +70,8 @@ Content::Content (shared_ptr film) } -Content::Content (shared_ptr film, DCPTime p) - : _film (film) - , _position (p) +Content::Content (DCPTime p) + : _position (p) , _trim_start (0) , _trim_end (0) , _change_signals_frequent (false) @@ -73,35 +79,42 @@ Content::Content (shared_ptr film, DCPTime p) } -Content::Content (shared_ptr film, boost::filesystem::path p) - : _film (film) - , _position (0) +Content::Content (boost::filesystem::path p) + : _position (0) , _trim_start (0) , _trim_end (0) , _change_signals_frequent (false) { - _paths.push_back (p); + add_path (p); } -Content::Content (shared_ptr film, cxml::ConstNodePtr node) - : _film (film) - , _change_signals_frequent (false) +Content::Content (cxml::ConstNodePtr node) + : _change_signals_frequent (false) { list path_children = node->node_children ("Path"); - for (list::const_iterator i = path_children.begin(); i != path_children.end(); ++i) { - _paths.push_back ((*i)->content ()); + BOOST_FOREACH (cxml::NodePtr i, path_children) { + _paths.push_back (i->content()); + optional const mod = i->optional_number_attribute("mtime"); + if (mod) { + _last_write_times.push_back (*mod); + } else if (boost::filesystem::exists(i->content())) { + _last_write_times.push_back (boost::filesystem::last_write_time(i->content())); + } else { + _last_write_times.push_back (0); + } } _digest = node->optional_string_child ("Digest").get_value_or ("X"); _position = DCPTime (node->number_child ("Position")); _trim_start = ContentTime (node->number_child ("TrimStart")); _trim_end = ContentTime (node->number_child ("TrimEnd")); + _video_frame_rate = node->optional_number_child ("VideoFrameRate"); } -Content::Content (shared_ptr film, vector > c) - : _film (film) - , _position (c.front()->position ()) +Content::Content (vector > c) + : _position (c.front()->position ()) , _trim_start (c.front()->trim_start ()) , _trim_end (c.back()->trim_end ()) + , _video_frame_rate (c.front()->video_frame_rate()) , _change_signals_frequent (false) { for (size_t i = 0; i < c.size(); ++i) { @@ -113,123 +126,184 @@ Content::Content (shared_ptr film, vector > c) throw JoinError (_("Only the last piece of content to be joined can have an end trim.")); } + if ( + (_video_frame_rate && !c[i]->_video_frame_rate) || + (!_video_frame_rate && c[i]->_video_frame_rate) + ) { + throw JoinError (_("Content to be joined must have the same video frame rate")); + } + + if (_video_frame_rate && fabs (_video_frame_rate.get() - c[i]->_video_frame_rate.get()) > VIDEO_FRAME_RATE_EPSILON) { + throw JoinError (_("Content to be joined must have the same video frame rate")); + } + for (size_t j = 0; j < c[i]->number_of_paths(); ++j) { - _paths.push_back (c[i]->path (j)); + _paths.push_back (c[i]->path(j)); + _last_write_times.push_back (c[i]->_last_write_times[j]); } } } void -Content::as_xml (xmlpp::Node* node) const +Content::as_xml (xmlpp::Node* node, bool with_paths) const { boost::mutex::scoped_lock lm (_mutex); - for (vector::const_iterator i = _paths.begin(); i != _paths.end(); ++i) { - node->add_child("Path")->add_child_text (i->string ()); + if (with_paths) { + for (size_t i = 0; i < _paths.size(); ++i) { + xmlpp::Element* p = node->add_child("Path"); + p->add_child_text (_paths[i].string()); + p->set_attribute ("mtime", raw_convert(_last_write_times[i])); + } } node->add_child("Digest")->add_child_text (_digest); node->add_child("Position")->add_child_text (raw_convert (_position.get ())); node->add_child("TrimStart")->add_child_text (raw_convert (_trim_start.get ())); node->add_child("TrimEnd")->add_child_text (raw_convert (_trim_end.get ())); + if (_video_frame_rate) { + node->add_child("VideoFrameRate")->add_child_text (raw_convert (_video_frame_rate.get())); + } } -void -Content::examine (shared_ptr job) +string +Content::calculate_digest () const { - if (job) { - job->sub (_("Computing digest")); - } - boost::mutex::scoped_lock lm (_mutex); vector p = _paths; lm.unlock (); /* Some content files are very big, so we use a poor man's - digest here: a MD5 of the first and last 1e6 bytes with the + digest here: a digest of the first and last 1e6 bytes with the size of the first file tacked on the end as a string. */ - string const d = md5_digest_head_tail (p, 1000000) + raw_convert (boost::filesystem::file_size (p.front ())); + return digest_head_tail(p, 1000000) + raw_convert(boost::filesystem::file_size(p.front())); +} + +void +Content::examine (shared_ptr, shared_ptr job) +{ + if (job) { + job->sub (_("Computing digest")); + } + + string const d = calculate_digest (); - lm.lock (); + boost::mutex::scoped_lock lm (_mutex); _digest = d; + + _last_write_times.clear (); + BOOST_FOREACH (boost::filesystem::path i, _paths) { + _last_write_times.push_back (boost::filesystem::last_write_time(i)); + } } void -Content::signal_changed (int p) +Content::signal_change (ChangeType c, int p) { try { - emit (boost::bind (boost::ref (Changed), shared_from_this (), p, _change_signals_frequent)); - } catch (boost::bad_weak_ptr) { + if (c == CHANGE_TYPE_PENDING || c == CHANGE_TYPE_CANCELLED) { + Change (c, shared_from_this(), p, _change_signals_frequent); + } else { + emit (boost::bind (boost::ref(Change), c, shared_from_this(), p, _change_signals_frequent)); + } + } catch (boost::bad_weak_ptr &) { /* This must be during construction; never mind */ } } void -Content::set_position (DCPTime p) +Content::set_position (shared_ptr film, DCPTime p, bool force_emit) { + /* video and audio content can modify its position */ + + if (video) { + video->modify_position (film, p); + } + + /* Only allow the audio to modify if we have no video; + sometimes p can't be on an integer video AND audio frame, + and in these cases we want the video constraint to be + satisfied since (I think) the audio code is better able to + cope. + */ + if (!video && audio) { + audio->modify_position (film, p); + } + + ChangeSignaller cc (this, ContentProperty::POSITION); + { boost::mutex::scoped_lock lm (_mutex); - if (p == _position) { + if (p == _position && !force_emit) { + cc.abort (); return; } _position = p; } - - signal_changed (ContentProperty::POSITION); } void Content::set_trim_start (ContentTime t) { + /* video and audio content can modify its start trim */ + + if (video) { + video->modify_trim_start (t); + } + + /* See note in ::set_position */ + if (!video && audio) { + audio->modify_trim_start (t); + } + + ChangeSignaller cc (this, ContentProperty::TRIM_START); + { boost::mutex::scoped_lock lm (_mutex); _trim_start = t; } - - signal_changed (ContentProperty::TRIM_START); } void Content::set_trim_end (ContentTime t) { + ChangeSignaller cc (this, ContentProperty::TRIM_END); + { boost::mutex::scoped_lock lm (_mutex); _trim_end = t; } - - signal_changed (ContentProperty::TRIM_END); } shared_ptr Content::clone () const { - shared_ptr film = _film.lock (); - if (!film) { - return shared_ptr (); - } - /* This is a bit naughty, but I can't think of a compelling reason not to do it ... */ xmlpp::Document doc; xmlpp::Node* node = doc.create_root_node ("Content"); - as_xml (node); + as_xml (node, true); /* notes is unused here (we assume) */ list notes; - return content_factory (film, cxml::NodePtr (new cxml::Node (node)), Film::current_state_version, notes); + return content_factory (cxml::NodePtr(new cxml::Node(node)), Film::current_state_version, notes); } string Content::technical_summary () const { - return String::compose ("%1 %2 %3", path_summary(), digest(), position().seconds()); + string s = String::compose ("%1 %2 %3", path_summary(), digest(), position().seconds()); + if (_video_frame_rate) { + s += String::compose(" %1", *_video_frame_rate); + } + return s; } DCPTime -Content::length_after_trim () const +Content::length_after_trim (shared_ptr film) const { - return max (DCPTime (), full_length() - DCPTime (trim_start() + trim_end(), film()->active_frame_rate_change (position ()))); + return max(DCPTime(), full_length(film) - DCPTime(trim_start() + trim_end(), film->active_frame_rate_change(position()))).round(film->video_frame_rate()); } /** @return string which changes when something about this content changes which affects @@ -238,21 +312,19 @@ Content::length_after_trim () const string Content::identifier () const { - SafeStringStream s; - - s << Content::digest() - << "_" << position().get() - << "_" << trim_start().get() - << "_" << trim_end().get(); - - return s.str (); + char buffer[256]; + snprintf ( + buffer, sizeof(buffer), "%s_%" PRId64 "_%" PRId64 "_%" PRId64, + Content::digest().c_str(), position().get(), trim_start().get(), trim_end().get() + ); + return buffer; } bool Content::paths_valid () const { - for (vector::const_iterator i = _paths.begin(); i != _paths.end(); ++i) { - if (!boost::filesystem::exists (*i)) { + BOOST_FOREACH (boost::filesystem::path i, _paths) { + if (!boost::filesystem::exists (i)) { return false; } } @@ -261,11 +333,18 @@ Content::paths_valid () const } void -Content::set_path (boost::filesystem::path path) +Content::set_paths (vector paths) { - _paths.clear (); - _paths.push_back (path); - signal_changed (ContentProperty::PATH); + ChangeSignaller cc (this, ContentProperty::PATH); + + { + boost::mutex::scoped_lock lm (_mutex); + _paths = paths; + _last_write_times.clear (); + BOOST_FOREACH (boost::filesystem::path i, _paths) { + _last_write_times.push_back (boost::filesystem::last_write_time(i)); + } + } } string @@ -285,44 +364,57 @@ Content::path_summary () const /** @return a list of properties that might be interesting to the user */ list -Content::user_properties () const +Content::user_properties (shared_ptr film) const { list p; - add_properties (p); + add_properties (film, p); return p; } -shared_ptr -Content::film () const -{ - shared_ptr film = _film.lock (); - DCPOMATIC_ASSERT (film); - return film; -} - /** @return DCP times of points within this content where a reel split could occur */ list -Content::reel_split_points () const +Content::reel_split_points (shared_ptr) const { list t; - /* XXX: this is questionable; perhaps the position itself should be forced to be on a frame boundary */ - t.push_back (position().round_up (film()->video_frame_rate())); + /* This is only called for video content and such content has its position forced + to start on a frame boundary. + */ + t.push_back (position()); return t; } void Content::set_video_frame_rate (double r) { + ChangeSignaller cc (this, ContentProperty::VIDEO_FRAME_RATE); + { boost::mutex::scoped_lock lm (_mutex); + if (_video_frame_rate && fabs(r - *_video_frame_rate) < VIDEO_FRAME_RATE_EPSILON) { + cc.abort(); + } _video_frame_rate = r; } - signal_changed (ContentProperty::VIDEO_FRAME_RATE); + /* Make sure trim is still on a frame boundary */ + if (video) { + set_trim_start (trim_start()); + } +} + +void +Content::unset_video_frame_rate () +{ + ChangeSignaller cc (this, ContentProperty::VIDEO_FRAME_RATE); + + { + boost::mutex::scoped_lock lm (_mutex); + _video_frame_rate = optional(); + } } double -Content::active_video_frame_rate () const +Content::active_video_frame_rate (shared_ptr film) const { { boost::mutex::scoped_lock lm (_mutex); @@ -335,17 +427,83 @@ Content::active_video_frame_rate () const prepared for any concurrent video content or perhaps just the DCP rate. */ - shared_ptr film = _film.lock (); - DCPOMATIC_ASSERT (film); return film->active_frame_rate_change(position()).source; } void -Content::add_properties (list& p) const +Content::add_properties (shared_ptr, list& p) const { - p.push_back (UserProperty (_("General"), _("Filename"), path(0).string ())); + p.push_back (UserProperty (UserProperty::GENERAL, _("Filename"), path(0).string ())); if (_video_frame_rate) { - p.push_back (UserProperty (_("General"), _("Video frame rate"), raw_convert (_video_frame_rate.get(), 5), _("frames per second"))); + if (video) { + p.push_back ( + UserProperty ( + UserProperty::VIDEO, + _("Frame rate"), + locale_convert (_video_frame_rate.get(), 5), + _("frames per second") + ) + ); + } else { + p.push_back ( + UserProperty ( + UserProperty::GENERAL, + _("Prepared for video frame rate"), + locale_convert (_video_frame_rate.get(), 5), + _("frames per second") + ) + ); + } + } +} + +/** Take settings from the given content if it is of the correct type */ +void +Content::take_settings_from (shared_ptr c) +{ + if (video && c->video) { + video->take_settings_from (c->video); + } + if (audio && c->audio) { + audio->take_settings_from (c->audio); + } + + list >::iterator i = text.begin (); + list >::const_iterator j = c->text.begin (); + while (i != text.end() && j != c->text.end()) { + (*i)->take_settings_from (*j); + ++i; + ++j; + } +} + +shared_ptr +Content::only_text () const +{ + DCPOMATIC_ASSERT (text.size() < 2); + if (text.empty ()) { + return shared_ptr (); } + return text.front (); +} + +shared_ptr +Content::text_of_original_type (TextType type) const +{ + BOOST_FOREACH (shared_ptr i, text) { + if (i->original_type() == type) { + return i; + } + } + + return shared_ptr (); +} + +void +Content::add_path (boost::filesystem::path p) +{ + boost::mutex::scoped_lock lm (_mutex); + _paths.push_back (p); + _last_write_times.push_back (boost::filesystem::last_write_time(p)); }