Merge master.
[dcpomatic.git] / src / lib / encoder.cc
index d4a27d01b5384f1fee2ced8133001b01b1184e43..d3181acd9b1f7df35f0224a96be318b6203f5f1d 100644 (file)
  */
 
 #include <iostream>
-#include <boost/filesystem.hpp>
-#include <boost/lexical_cast.hpp>
-#include <libdcp/picture_asset.h>
 #include "encoder.h"
 #include "util.h"
-#include "options.h"
 #include "film.h"
 #include "log.h"
-#include "exceptions.h"
-#include "filter.h"
 #include "config.h"
 #include "dcp_video_frame.h"
 #include "server.h"
-#include "format.h"
 #include "cross.h"
 #include "writer.h"
 
@@ -47,19 +40,18 @@ using std::stringstream;
 using std::vector;
 using std::list;
 using std::cout;
+using std::min;
 using std::make_pair;
-using namespace boost;
+using boost::shared_ptr;
+using boost::optional;
 
 int const Encoder::_history_size = 25;
 
 /** @param f Film that we are encoding */
-Encoder::Encoder (shared_ptr<Film> f)
+Encoder::Encoder (shared_ptr<const Film> f, shared_ptr<Job> j)
        : _film (f)
-       , _video_frames_in (0)
+       , _job (j)
        , _video_frames_out (0)
-#ifdef HAVE_SWRESAMPLE   
-       , _swr_context (0)
-#endif
        , _have_a_real_frame (false)
        , _terminate (false)
 {
@@ -77,35 +69,6 @@ Encoder::~Encoder ()
 void
 Encoder::process_begin ()
 {
-       if (_film->audio_stream() && _film->audio_stream()->sample_rate() != _film->target_audio_sample_rate()) {
-#ifdef HAVE_SWRESAMPLE
-
-               stringstream s;
-               s << String::compose (N_("Will resample audio from %1 to %2"), _film->audio_stream()->sample_rate(), _film->target_audio_sample_rate());
-               _film->log()->log (s.str ());
-
-               /* We will be using planar float data when we call the resampler */
-               _swr_context = swr_alloc_set_opts (
-                       0,
-                       _film->audio_stream()->channel_layout(),
-                       AV_SAMPLE_FMT_FLTP,
-                       _film->target_audio_sample_rate(),
-                       _film->audio_stream()->channel_layout(),
-                       AV_SAMPLE_FMT_FLTP,
-                       _film->audio_stream()->sample_rate(),
-                       0, 0
-                       );
-               
-               swr_init (_swr_context);
-#else
-               throw EncodeError (_("Cannot resample audio as libswresample is not present"));
-#endif
-       } else {
-#ifdef HAVE_SWRESAMPLE
-               _swr_context = 0;
-#endif         
-       }
-
        for (int i = 0; i < Config::instance()->num_local_encoding_threads (); ++i) {
                _threads.push_back (new boost::thread (boost::bind (&Encoder::encoder_thread, this, (ServerDescription *) 0)));
        }
@@ -118,37 +81,13 @@ Encoder::process_begin ()
                }
        }
 
-       _writer.reset (new Writer (_film));
+       _writer.reset (new Writer (_film, _job));
 }
 
 
 void
 Encoder::process_end ()
 {
-#if HAVE_SWRESAMPLE    
-       if (_film->audio_stream() && _film->audio_stream()->channels() && _swr_context) {
-
-               shared_ptr<AudioBuffers> out (new AudioBuffers (_film->audio_stream()->channels(), 256));
-                       
-               while (1) {
-                       int const frames = swr_convert (_swr_context, (uint8_t **) out->data(), 256, 0, 0);
-
-                       if (frames < 0) {
-                               throw EncodeError (_("could not run sample-rate converter"));
-                       }
-
-                       if (frames == 0) {
-                               break;
-                       }
-
-                       out->set_frames (frames);
-                       write_audio (out);
-               }
-
-               swr_free (&_swr_context);
-       }
-#endif
-
        boost::mutex::scoped_lock lock (_mutex);
 
        _film->log()->log (String::compose (N_("Clearing queue of %1"), _queue.size ()));
@@ -193,7 +132,7 @@ Encoder::process_end ()
  *  or 0 if not known.
  */
 float
-Encoder::current_frames_per_second () const
+Encoder::current_encoding_rate () const
 {
        boost::mutex::scoped_lock lock (_history_mutex);
        if (int (_time_history.size()) < _history_size) {
@@ -231,22 +170,15 @@ Encoder::frame_done ()
 }
 
 void
-Encoder::process_video (shared_ptr<Image> image, bool same, boost::shared_ptr<Subtitle> sub)
+Encoder::process_video (shared_ptr<const Image> image, bool same)
 {
-       DCPFrameRate dfr (_film->frames_per_second ());
-       
-       if (dfr.skip && (_video_frames_in % 2)) {
-               ++_video_frames_in;
-               return;
-       }
-
        boost::mutex::scoped_lock lock (_mutex);
 
        /* Wait until the queue has gone down a bit */
        while (_queue.size() >= _threads.size() * 2 && !_terminate) {
-               TIMING (_("decoder sleeps with queue of %1"), _queue.size());
+               TIMING ("decoder sleeps with queue of %1", _queue.size());
                _condition.wait (lock);
-               TIMING (_("decoder wakes with queue of %1"), _queue.size());
+               TIMING ("decoder wakes with queue of %1", _queue.size());
        }
 
        if (_terminate) {
@@ -267,15 +199,12 @@ Encoder::process_video (shared_ptr<Image> image, bool same, boost::shared_ptr<Su
                frame_done ();
        } else {
                /* Queue this new frame for encoding */
-               pair<string, string> const s = Filter::ffmpeg_strings (_film->filters());
-               TIMING (_("adding to queue of %1"), _queue.size ());
-               _queue.push_back (boost::shared_ptr<DCPVideoFrame> (
+               TIMING ("adding to queue of %1", _queue.size ());
+               /* XXX: padding */
+               _queue.push_back (shared_ptr<DCPVideoFrame> (
                                          new DCPVideoFrame (
-                                                 image, sub, _film->format()->dcp_size(), _film->format()->dcp_padding (_film),
-                                                 _film->subtitle_offset(), _film->subtitle_scale(),
-                                                 _film->scaler(), _video_frames_out, _film->frames_per_second(), s.second,
-                                                 _film->colour_lut(), _film->j2k_bandwidth(),
-                                                 _film->log()
+                                                 image, _video_frames_out, _film->dcp_video_frame_rate(),
+                                                 _film->colour_lut(), _film->j2k_bandwidth(), _film->log()
                                                  )
                                          ));
                
@@ -283,45 +212,13 @@ Encoder::process_video (shared_ptr<Image> image, bool same, boost::shared_ptr<Su
                _have_a_real_frame = true;
        }
 
-       ++_video_frames_in;
        ++_video_frames_out;
-
-       if (dfr.repeat) {
-               _writer->repeat (_video_frames_out);
-               ++_video_frames_out;
-               frame_done ();
-       }
 }
 
 void
-Encoder::process_audio (shared_ptr<AudioBuffers> data)
+Encoder::process_audio (shared_ptr<const AudioBuffers> data)
 {
-#if HAVE_SWRESAMPLE
-       /* Maybe sample-rate convert */
-       if (_swr_context) {
-
-               /* Compute the resampled frames count and add 32 for luck */
-               int const max_resampled_frames = ceil ((int64_t) data->frames() * _film->target_audio_sample_rate() / _film->audio_stream()->sample_rate()) + 32;
-
-               shared_ptr<AudioBuffers> resampled (new AudioBuffers (_film->audio_stream()->channels(), max_resampled_frames));
-
-               /* Resample audio */
-               int const resampled_frames = swr_convert (
-                       _swr_context, (uint8_t **) resampled->data(), max_resampled_frames, (uint8_t const **) data->data(), data->frames()
-                       );
-               
-               if (resampled_frames < 0) {
-                       throw EncodeError (_("could not run sample-rate converter"));
-               }
-
-               resampled->set_frames (resampled_frames);
-               
-               /* And point our variables at the resampled audio */
-               data = resampled;
-       }
-#endif
-
-       write_audio (data);
+       _writer->write (data);
 }
 
 void
@@ -333,9 +230,13 @@ Encoder::terminate_threads ()
        lock.unlock ();
 
        for (list<boost::thread *>::iterator i = _threads.begin(); i != _threads.end(); ++i) {
-               (*i)->join ();
+               if ((*i)->joinable ()) {
+                       (*i)->join ();
+               }
                delete *i;
        }
+
+       _threads.clear ();
 }
 
 void
@@ -349,7 +250,7 @@ Encoder::encoder_thread (ServerDescription* server)
        
        while (1) {
 
-               TIMING (N_("encoder thread %1 sleeps"), boost::this_thread::get_id());
+               TIMING ("encoder thread %1 sleeps", boost::this_thread::get_id());
                boost::mutex::scoped_lock lock (_mutex);
                while (_queue.empty () && !_terminate) {
                        _condition.wait (lock);
@@ -359,8 +260,8 @@ Encoder::encoder_thread (ServerDescription* server)
                        return;
                }
 
-               TIMING (N_("encoder thread %1 wakes with queue of %2"), boost::this_thread::get_id(), _queue.size());
-               boost::shared_ptr<DCPVideoFrame> vf = _queue.front ();
+               TIMING ("encoder thread %1 wakes with queue of %2", boost::this_thread::get_id(), _queue.size());
+               shared_ptr<DCPVideoFrame> vf = _queue.front ();
                _film->log()->log (String::compose (N_("Encoder thread %1 pops frame %2 from queue"), boost::this_thread::get_id(), vf->frame()), Log::VERBOSE);
                _queue.pop_front ();
                
@@ -393,9 +294,9 @@ Encoder::encoder_thread (ServerDescription* server)
                                
                } else {
                        try {
-                               TIMING (N_("encoder thread %1 begins local encode of %2"), boost::this_thread::get_id(), vf->frame());
+                               TIMING ("encoder thread %1 begins local encode of %2", boost::this_thread::get_id(), vf->frame());
                                encoded = vf->encode_locally ();
-                               TIMING (N_("encoder thread %1 finishes local encode of %2"), boost::this_thread::get_id(), vf->frame());
+                               TIMING ("encoder thread %1 finishes local encode of %2", boost::this_thread::get_id(), vf->frame());
                        } catch (std::exception& e) {
                                _film->log()->log (String::compose (N_("Local encode failed (%1)"), e.what ()));
                        }
@@ -414,32 +315,10 @@ Encoder::encoder_thread (ServerDescription* server)
                }
 
                if (remote_backoff > 0) {
-                       dvdomatic_sleep (remote_backoff);
+                       dcpomatic_sleep (remote_backoff);
                }
 
                lock.lock ();
                _condition.notify_all ();
        }
 }
-
-void
-Encoder::write_audio (shared_ptr<const AudioBuffers> data)
-{
-       if (_film->audio_channels() == 1) {
-               /* We need to switch things around so that the mono channel is on
-                  the centre channel of a 5.1 set (with other channels silent).
-               */
-
-               shared_ptr<AudioBuffers> b (new AudioBuffers (6, data->frames ()));
-               b->make_silent (libdcp::LEFT);
-               b->make_silent (libdcp::RIGHT);
-               memcpy (b->data()[libdcp::CENTRE], data->data()[0], data->frames() * sizeof(float));
-               b->make_silent (libdcp::LFE);
-               b->make_silent (libdcp::LS);
-               b->make_silent (libdcp::RS);
-
-               data = b;
-       }
-
-       _writer->write (data);
-}