Remove LocaleGuard and lexical_cast<> in favour of libdcp::raw_convert,

[dcpomatic.git] / src / lib / sndfile_content.cc

diff --git a/src/lib/sndfile_content.cc b/src/lib/sndfile_content.cc
index c7879202f471c6ac5a2f2f978215b35cffc39300..fcdf88778ac81173080aebfbda9cbf832d8a169c 100644 (file)
--- a/src/lib/sndfile_content.cc
+++ b/src/lib/sndfile_content.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
 
     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
@@ -18,6 +18,7 @@
 */
 
 #include <libcxml/cxml.h>
+#include <libdcp/raw_convert.h>
 #include "sndfile_content.h"
 #include "sndfile_decoder.h"
 #include "film.h"
@@ -31,7 +32,9 @@ using std::string;
 using std::stringstream;
 using std::cout;
 using boost::shared_ptr;
-using boost::lexical_cast;
+using libdcp::raw_convert;
+
+int const SndfileContentProperty::VIDEO_FRAME_RATE = 600;
 
 SndfileContent::SndfileContent (shared_ptr<const Film> f, boost::filesystem::path p)
        : Content (f, p)
@@ -43,10 +46,10 @@ SndfileContent::SndfileContent (shared_ptr<const Film> f, boost::filesystem::pat
 
 }
 
-SndfileContent::SndfileContent (shared_ptr<const Film> f, shared_ptr<const cxml::Node> node, int)
+SndfileContent::SndfileContent (shared_ptr<const Film> f, shared_ptr<const cxml::Node> node, int version)
        : Content (f, node)
        , AudioContent (f, node)
-       , _audio_mapping (node->node_child ("AudioMapping"))
+       , _audio_mapping (node->node_child ("AudioMapping"), version)
 {
        _audio_channels = node->number_child<int> ("AudioChannels");
        _audio_length = node->number_child<AudioContent::Frame> ("AudioLength");
@@ -135,9 +138,9 @@ SndfileContent::as_xml (xmlpp::Node* node) const
        Content::as_xml (node);
        AudioContent::as_xml (node);
 
-       node->add_child("AudioChannels")->add_child_text (lexical_cast<string> (audio_channels ()));
-       node->add_child("AudioLength")->add_child_text (lexical_cast<string> (audio_length ()));
-       node->add_child("AudioFrameRate")->add_child_text (lexical_cast<string> (content_audio_frame_rate ()));
+       node->add_child("AudioChannels")->add_child_text (raw_convert<string> (audio_channels ()));
+       node->add_child("AudioLength")->add_child_text (raw_convert<string> (audio_length ()));
+       node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (content_audio_frame_rate ()));
        _audio_mapping.as_xml (node->add_child("AudioMapping"));
 }
 
@@ -146,8 +149,14 @@ SndfileContent::full_length () const
 {
        shared_ptr<const Film> film = _film.lock ();
        assert (film);
+
+       float const rate = _video_frame_rate.get_value_or (film->video_frame_rate ());
+       OutputAudioFrame const len = divide_with_round (
+               audio_length() * output_audio_frame_rate() * rate,
+               content_audio_frame_rate() * film->video_frame_rate()
+               );
        
-       return film->audio_frames_to_time (audio_length ());
+       return film->audio_frames_to_time (len);
 }
 
 int
@@ -169,3 +178,18 @@ SndfileContent::set_audio_mapping (AudioMapping m)
 
        signal_changed (AudioContentProperty::AUDIO_MAPPING);
 }
+
+float
+SndfileContent::video_frame_rate () const
+{
+       {
+               boost::mutex::scoped_lock lm (_mutex);
+               if (_video_frame_rate) {
+                       return _video_frame_rate.get ();
+               }
+       }
+
+       shared_ptr<const Film> film = _film.lock ();
+       assert (film);
+       return film->video_frame_rate ();
+}