#include "cross.h"
#include "util.h"
#include "raw_convert.h"
+#include "playlist.h"
+#include "audio_content.h"
#include <libxml++/libxml++.h>
#include <boost/filesystem.hpp>
#include <boost/foreach.hpp>
using std::max;
using std::list;
using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
AudioAnalysis::AudioAnalysis (int channels)
{
doc->write_to_file_formatted (filename.string ());
}
+
+float
+AudioAnalysis::gain_correction (shared_ptr<const Playlist> playlist)
+{
+ if (playlist->content().size() == 1 && analysis_gain ()) {
+ /* In this case we know that the analysis was of a single piece of content and
+ we know that content's gain when the analysis was run. Hence we can work out
+ what correction is now needed to make it look `right'.
+ */
+ shared_ptr<const AudioContent> ac = dynamic_pointer_cast<const AudioContent> (playlist->content().front ());
+ DCPOMATIC_ASSERT (ac);
+ return ac->audio_gain() - analysis_gain().get ();
+ }
+
+ return 0.0f;
+}