X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fanalyse_audio_job.cc;h=e77f83bdedfd8c8b82dd21f8c28d287f2b8b8ab8;hp=5994bc71a7ec7338bed1e9457de2a4b04c9f53f2;hb=56caa542a558a3e261a3da4773c9ed3e66e262ab;hpb=c3a1cd0ee67761bab7c642c53f7755cd3214fc3c

diff --git a/src/lib/analyse_audio_job.cc b/src/lib/analyse_audio_job.cc
index 5994bc71a..e77f83bde 100644
--- a/src/lib/analyse_audio_job.cc
+++ b/src/lib/analyse_audio_job.cc
@@ -30,6 +30,7 @@
 #include "audio_filter_graph.h"
 #include "config.h"
 extern "C" {
+#include <leqm_nrt.h>
 #include <libavutil/channel_layout.h>
 #ifdef DCPOMATIC_HAVE_EBUR128_PATCHED_FFMPEG
 #include <libavfilter/f_ebur128.h>
@@ -47,13 +48,22 @@ using std::min;
 using std::cout;
 using boost::shared_ptr;
 using boost::dynamic_pointer_cast;
+using namespace dcpomatic;
 
 int const AnalyseAudioJob::_num_points = 1024;
 
+static void add_if_required(vector<double>& v, size_t i, double db)
+{
+	if (v.size() > i) {
+		v[i] = pow(10, db / 20);
+	}
+}
+
 /** @param from_zero true to analyse audio from time 0 in the playlist, otherwise begin at Playlist::start */
 AnalyseAudioJob::AnalyseAudioJob (shared_ptr<const Film> film, shared_ptr<const Playlist> playlist, bool from_zero)
 	: Job (film)
 	, _playlist (playlist)
+	, _path (film->audio_analysis_path(playlist))
 	, _from_zero (from_zero)
 	, _done (0)
 	, _samples_per_point (1)
@@ -77,10 +87,36 @@ AnalyseAudioJob::AnalyseAudioJob (shared_ptr<const Film> film, shared_ptr<const
 	if (!_from_zero) {
 		_start = _playlist->start().get_value_or(DCPTime());
 	}
+
+	/* XXX: is this right?  Especially for more than 5.1? */
+	vector<double> channel_corrections(film->audio_channels(), 1);
+	add_if_required (channel_corrections,  4,   -3); // Ls
+	add_if_required (channel_corrections,  5,   -3); // Rs
+	add_if_required (channel_corrections,  6, -144); // HI
+	add_if_required (channel_corrections,  7, -144); // VI
+	add_if_required (channel_corrections,  8,   -3); // Lc
+	add_if_required (channel_corrections,  9,   -3); // Rc
+	add_if_required (channel_corrections, 10,   -3); // Lc
+	add_if_required (channel_corrections, 11,   -3); // Rc
+	add_if_required (channel_corrections, 12, -144); // DBox
+	add_if_required (channel_corrections, 13, -144); // Sync
+	add_if_required (channel_corrections, 14, -144); // Sign Language
+	add_if_required (channel_corrections, 15, -144); // Unused
+
+	_leqm.reset(new leqm_nrt::Calculator(
+		film->audio_channels(),
+		film->audio_frame_rate(),
+		24,
+		channel_corrections,
+		850, // suggested by leqm_nrt CLI source
+		64,  // suggested by leqm_nrt CLI source
+		boost::thread::hardware_concurrency()
+		));
 }
 
 AnalyseAudioJob::~AnalyseAudioJob ()
 {
+	stop_thread ();
 	BOOST_FOREACH (Filter const * i, _filters) {
 		delete const_cast<Filter*> (i);
 	}
@@ -92,7 +128,7 @@ AnalyseAudioJob::~AnalyseAudioJob ()
 string
 AnalyseAudioJob::name () const
 {
-	return _("Analyse audio");
+	return _("Analysing audio");
 }
 
 string
@@ -104,14 +140,14 @@ AnalyseAudioJob::json_name () const
 void
 AnalyseAudioJob::run ()
 {
-	shared_ptr<Player> player (new Player (_film, _playlist));
+	shared_ptr<Player> player (new Player(_film, _playlist));
 	player->set_ignore_video ();
 	player->set_ignore_text ();
 	player->set_fast ();
 	player->set_play_referenced ();
 	player->Audio.connect (bind (&AnalyseAudioJob::analyse, this, _1, _2));
 
-	DCPTime const length = _playlist->length ();
+	DCPTime const length = _playlist->length (_film);
 
 	Frame const len = DCPTime (length - _start).frames_round (_film->audio_frame_rate());
 	_samples_per_point = max (int64_t (1), len / _num_points);
@@ -166,7 +202,8 @@ AnalyseAudioJob::run ()
 
 	_analysis->set_samples_per_point (_samples_per_point);
 	_analysis->set_sample_rate (_film->audio_frame_rate ());
-	_analysis->write (_film->audio_analysis_path (_playlist));
+	_analysis->set_leqm (_leqm->leq_m());
+	_analysis->write (_path);
 
 	set_progress (1);
 	set_state (FINISHED_OK);
@@ -185,11 +222,15 @@ AnalyseAudioJob::analyse (shared_ptr<const AudioBuffers> b, DCPTime time)
 
 	int const frames = b->frames ();
 	int const channels = b->channels ();
+	vector<double> interleaved(frames * channels);
 
 	for (int j = 0; j < channels; ++j) {
 		float* data = b->data(j);
 		for (int i = 0; i < frames; ++i) {
 			float s = data[i];
+
+			interleaved[i * channels + j] = s;
+
 			float as = fabsf (s);
 			if (as < 10e-7) {
 				/* We may struggle to serialise and recover inf or -inf, so prevent such
@@ -212,8 +253,10 @@ AnalyseAudioJob::analyse (shared_ptr<const AudioBuffers> b, DCPTime time)
 		}
 	}
 
+	_leqm->add(interleaved);
+
 	_done += frames;
 
-	DCPTime const length = _playlist->length ();
+	DCPTime const length = _playlist->length (_film);
 	set_progress ((time.seconds() - _start.seconds()) / (length.seconds() - _start.seconds()));
 }