#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>
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)
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);
}
string
AnalyseAudioJob::name () const
{
- return _("Analyse audio");
+ return _("Analysing audio");
}
string
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 ();
_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);
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
}
}
+ _leqm->add(interleaved);
+
_done += frames;
DCPTime const length = _playlist->length (_film);