Remove in-place translations support.
[dcpomatic.git] / src / lib / ffmpeg_encoder.cc
index 2c76a38c3973405d2733f3046361eb008bb93bf9..c1170f098ce8b416cacd1ab1562e4d99cd4a1fd7 100644 (file)
 
 */
 
+
+#include "butler.h"
+#include "cross.h"
 #include "ffmpeg_encoder.h"
 #include "film.h"
+#include "image.h"
 #include "job.h"
+#include "log.h"
 #include "player.h"
 #include "player_video.h"
-#include "log.h"
-#include "image.h"
-#include "cross.h"
-#include "butler.h"
 #include "compose.hpp"
 #include <iostream>
 
 #include "i18n.h"
 
-using std::string;
-using std::runtime_error;
+
 using std::cout;
-using std::pair;
 using std::list;
-using std::map;
-using boost::shared_ptr;
+using std::make_shared;
+using std::shared_ptr;
+using std::string;
+using std::weak_ptr;
 using boost::bind;
-using boost::weak_ptr;
 using boost::optional;
 using namespace dcpomatic;
 #if BOOST_VERSION >= 106100
 using namespace boost::placeholders;
 #endif
 
-/** @param key Key to use to encrypt MP4 outputs */
+
 FFmpegEncoder::FFmpegEncoder (
        shared_ptr<const Film> film,
        weak_ptr<Job> job,
@@ -57,62 +57,72 @@ FFmpegEncoder::FFmpegEncoder (
        bool split_reels,
        bool audio_stream_per_channel,
        int x264_crf
-#ifdef DCPOMATIC_VARIANT_SWAROOP
-       , optional<dcp::Key> key
-       , optional<string> id
-#endif
        )
        : Encoder (film, job)
+       , _output_audio_channels(mixdown_to_stereo ? 2 : (_film->audio_channels() > 8 ? 16 : _film->audio_channels()))
        , _history (200)
        , _output (output)
        , _format (format)
        , _split_reels (split_reels)
        , _audio_stream_per_channel (audio_stream_per_channel)
        , _x264_crf (x264_crf)
+       , _butler(
+               _film,
+               _player,
+               mixdown_to_stereo ? stereo_map() : many_channel_map(),
+               _output_audio_channels,
+               boost::bind(&PlayerVideo::force, FFmpegFileEncoder::pixel_format(format)),
+               VideoRange::VIDEO,
+               Image::Alignment::PADDED,
+               false,
+               false,
+               Butler::Audio::ENABLED
+               )
 {
-       _player->set_always_burn_open_subtitles ();
-       _player->set_play_referenced ();
-
-       int const ch = film->audio_channels ();
-
-       AudioMapping map;
-       if (mixdown_to_stereo) {
-               _output_audio_channels = 2;
-               map = AudioMapping (ch, 2);
-               float const overall_gain = 2 / (4 + sqrt(2));
-               float const minus_3dB = 1 / sqrt(2);
-               if (ch == 2) {
-                       map.set (dcp::LEFT, 0, 1);
-                       map.set (dcp::RIGHT, 1, 1);
-               } else if (ch == 4) {
-                       map.set (dcp::LEFT,   0, overall_gain);
-                       map.set (dcp::RIGHT,  1, overall_gain);
-                       map.set (dcp::CENTRE, 0, overall_gain * minus_3dB);
-                       map.set (dcp::CENTRE, 1, overall_gain * minus_3dB);
-                       map.set (dcp::LS,     0, overall_gain);
-               } else if (ch >= 6) {
-                       map.set (dcp::LEFT,   0, overall_gain);
-                       map.set (dcp::RIGHT,  1, overall_gain);
-                       map.set (dcp::CENTRE, 0, overall_gain * minus_3dB);
-                       map.set (dcp::CENTRE, 1, overall_gain * minus_3dB);
-                       map.set (dcp::LS,     0, overall_gain);
-                       map.set (dcp::RS,     1, overall_gain);
-               }
-               /* XXX: maybe we should do something better for >6 channel DCPs */
-       } else {
-               /* Our encoders don't really want to encode any channel count between 9 and 15 inclusive,
-                * so let's just use 16 channel exports for any project with more than 8 channels.
-                */
-               _output_audio_channels = ch > 8 ? 16 : ch;
-               map = AudioMapping (ch, _output_audio_channels);
-               for (int i = 0; i < ch; ++i) {
-                       map.set (i, i, 1);
-               }
+       _player.set_always_burn_open_subtitles();
+       _player.set_play_referenced();
+}
+
+
+AudioMapping
+FFmpegEncoder::stereo_map() const
+{
+       auto map = AudioMapping(_film->audio_channels(), 2);
+       float const overall_gain = 2 / (4 + sqrt(2));
+       float const minus_3dB = 1 / sqrt(2);
+       switch (_film->audio_channels()) {
+       case 2:
+               map.set(dcp::Channel::LEFT, 0, 1);
+               map.set(dcp::Channel::RIGHT, 1, 1);
+               break;
+       case 4:
+               map.set(dcp::Channel::LEFT,   0, overall_gain);
+               map.set(dcp::Channel::RIGHT,  1, overall_gain);
+               map.set(dcp::Channel::CENTRE, 0, overall_gain * minus_3dB);
+               map.set(dcp::Channel::CENTRE, 1, overall_gain * minus_3dB);
+               map.set(dcp::Channel::LS,     0, overall_gain);
+               break;
+       default:
+               map.set(dcp::Channel::LEFT,   0, overall_gain);
+               map.set(dcp::Channel::RIGHT,  1, overall_gain);
+               map.set(dcp::Channel::CENTRE, 0, overall_gain * minus_3dB);
+               map.set(dcp::Channel::CENTRE, 1, overall_gain * minus_3dB);
+               map.set(dcp::Channel::LS,     0, overall_gain);
+               map.set(dcp::Channel::RS,     1, overall_gain);
+               break;
        }
+       return map;
+}
 
-       _butler.reset (
-               new Butler(_player, map, _output_audio_channels, bind(&PlayerVideo::force, _1, FFmpegFileEncoder::pixel_format(format)), VIDEO_RANGE_VIDEO, true, false)
-               );
+
+AudioMapping
+FFmpegEncoder::many_channel_map() const
+{
+       auto map = AudioMapping(_film->audio_channels(), _output_audio_channels);
+       for (int i = 0; i < _film->audio_channels(); ++i) {
+               map.set(i, i, 1);
+       }
+       return map;
 }
 
 
@@ -120,7 +130,7 @@ void
 FFmpegEncoder::go ()
 {
        {
-               shared_ptr<Job> job = _job.lock ();
+               auto job = _job.lock ();
                DCPOMATIC_ASSERT (job);
                job->sub (_("Encoding"));
        }
@@ -133,8 +143,8 @@ FFmpegEncoder::go ()
        for (int i = 0; i < files; ++i) {
 
                boost::filesystem::path filename = _output;
-               string extension = boost::filesystem::extension (filename);
-               filename = boost::filesystem::change_extension (filename, "");
+               auto extension = dcp::filesystem::extension(filename);
+               filename = dcp::filesystem::change_extension(filename, "");
 
                if (files > 1) {
                        /// TRANSLATORS: _reel%1 here is to be added to an export filename to indicate
@@ -154,26 +164,22 @@ FFmpegEncoder::go ()
                                _film->three_d(),
                                filename,
                                extension
-#ifdef DCPOMATIC_VARIANT_SWAROOP
-                               , key
-                               , id
-#endif
                                )
                        );
        }
 
-       list<DCPTimePeriod> reel_periods = _film->reels ();
-       list<DCPTimePeriod>::const_iterator reel = reel_periods.begin ();
-       list<FileEncoderSet>::iterator encoder = file_encoders.begin ();
+       auto reel_periods = _film->reels ();
+       auto reel = reel_periods.begin ();
+       auto encoder = file_encoders.begin ();
 
-       DCPTime const video_frame = DCPTime::from_frames (1, _film->video_frame_rate ());
+       auto const video_frame = DCPTime::from_frames (1, _film->video_frame_rate ());
        int const audio_frames = video_frame.frames_round(_film->audio_frame_rate());
-       float* interleaved = new float[_output_audio_channels * audio_frames];
-       shared_ptr<AudioBuffers> deinterleaved (new AudioBuffers (_output_audio_channels, audio_frames));
+       std::vector<float> interleaved(_output_audio_channels * audio_frames);
+       auto deinterleaved = make_shared<AudioBuffers>(_output_audio_channels, audio_frames);
        int const gets_per_frame = _film->three_d() ? 2 : 1;
-       for (DCPTime i; i < _film->length(); i += video_frame) {
+       for (DCPTime time; time < _film->length(); time += video_frame) {
 
-               if (file_encoders.size() > 1 && !reel->contains(i)) {
+               if (file_encoders.size() > 1 && !reel->contains(time)) {
                        /* Next reel and file */
                        ++reel;
                        ++encoder;
@@ -183,14 +189,17 @@ FFmpegEncoder::go ()
 
                for (int j = 0; j < gets_per_frame; ++j) {
                        Butler::Error e;
-                       pair<shared_ptr<PlayerVideo>, DCPTime> v = _butler->get_video (true, &e);
-                       _butler->rethrow ();
-                       if (!v.first) {
-                               throw DecodeError(String::compose("Error during decoding: %1", e.summary()));
-                       }
-                       shared_ptr<FFmpegFileEncoder> fe = encoder->get (v.first->eyes());
-                       if (fe) {
-                               fe->video(v.first, v.second);
+                       auto video = _butler.get_video(Butler::Behaviour::BLOCKING, &e);
+                       _butler.rethrow();
+                       if (video.first) {
+                               auto fe = encoder->get(video.first->eyes());
+                               if (fe) {
+                                       fe->video(video.first, video.second - reel->from);
+                               }
+                       } else {
+                               if (e.code != Butler::Error::Code::FINISHED) {
+                                       throw DecodeError(String::compose("Error during decoding: %1", e.summary()));
+                               }
                        }
                }
 
@@ -198,19 +207,19 @@ FFmpegEncoder::go ()
 
                {
                        boost::mutex::scoped_lock lm (_mutex);
-                       _last_time = i;
+                       _last_time = time;
                }
 
-               shared_ptr<Job> job = _job.lock ();
+               auto job = _job.lock ();
                if (job) {
-                       job->set_progress (float(i.get()) / _film->length().get());
+                       job->set_progress(float(time.get()) / _film->length().get());
                }
 
                waker.nudge ();
 
-               _butler->get_audio (interleaved, audio_frames);
+               _butler.get_audio(Butler::Behaviour::BLOCKING, interleaved.data(), audio_frames);
                /* XXX: inefficient; butler interleaves and we deinterleave again */
-               float* p = interleaved;
+               float* p = interleaved.data();
                for (int j = 0; j < audio_frames; ++j) {
                        for (int k = 0; k < _output_audio_channels; ++k) {
                                deinterleaved->data(k)[j] = *p++;
@@ -218,9 +227,8 @@ FFmpegEncoder::go ()
                }
                encoder->audio (deinterleaved);
        }
-       delete[] interleaved;
 
-       BOOST_FOREACH (FileEncoderSet i, file_encoders) {
+       for (auto i: file_encoders) {
                i.flush ();
        }
 }
@@ -249,42 +257,23 @@ FFmpegEncoder::FileEncoderSet::FileEncoderSet (
        bool three_d,
        boost::filesystem::path output,
        string extension
-#ifdef DCPOMATIC_VARIANT_SWAROOP
-       , optional<dcp::Key> key
-       , optional<string> id
-#endif
        )
 {
        if (three_d) {
-               /// TRANSLATORS: L here is an abbreviation for "left", to indicate the left-eye part of a 3D export
-               _encoders[EYES_LEFT] = shared_ptr<FFmpegFileEncoder>(
-                       new FFmpegFileEncoder(
-                               video_frame_size, video_frame_rate, audio_frame_rate, channels, format,
-                               audio_stream_per_channel, x264_crf, String::compose("%1_%2%3", output.string(), _("L"), extension)
-#ifdef DCPOMATIC_VARIANT_SWAROOP
-                                             , key, id
-#endif
-                               )
+               _encoders[Eyes::LEFT] = make_shared<FFmpegFileEncoder>(
+                       video_frame_size, video_frame_rate, audio_frame_rate, channels, format,
+                       // TRANSLATORS: L here is an abbreviation for "left", to indicate the left-eye part of a 3D export
+                       audio_stream_per_channel, x264_crf, String::compose("%1_%2%3", output.string(), _("L"), extension)
                        );
-               /// TRANSLATORS: R here is an abbreviation for "right", to indicate the right-eye part of a 3D export
-               _encoders[EYES_RIGHT] = shared_ptr<FFmpegFileEncoder>(
-                       new FFmpegFileEncoder(
-                               video_frame_size, video_frame_rate, audio_frame_rate, channels, format,
-                               audio_stream_per_channel, x264_crf, String::compose("%1_%2%3", output.string(), _("R"), extension)
-#ifdef DCPOMATIC_VARIANT_SWAROOP
-                                             , key, id
-#endif
-                               )
+               _encoders[Eyes::RIGHT] = make_shared<FFmpegFileEncoder>(
+                       video_frame_size, video_frame_rate, audio_frame_rate, channels, format,
+                       // TRANSLATORS: R here is an abbreviation for "right", to indicate the right-eye part of a 3D export
+                       audio_stream_per_channel, x264_crf, String::compose("%1_%2%3", output.string(), _("R"), extension)
                        );
        } else {
-               _encoders[EYES_BOTH]  = shared_ptr<FFmpegFileEncoder>(
-                       new FFmpegFileEncoder(
-                               video_frame_size, video_frame_rate, audio_frame_rate, channels, format,
-                               audio_stream_per_channel, x264_crf, String::compose("%1%2", output.string(), extension)
-#ifdef DCPOMATIC_VARIANT_SWAROOP
-                                             , key, id
-#endif
-                               )
+               _encoders[Eyes::BOTH] = make_shared<FFmpegFileEncoder>(
+                       video_frame_size, video_frame_rate, audio_frame_rate, channels, format,
+                       audio_stream_per_channel, x264_crf, String::compose("%1%2", output.string(), extension)
                        );
        }
 }
@@ -294,16 +283,16 @@ FFmpegEncoder::FileEncoderSet::get (Eyes eyes) const
 {
        if (_encoders.size() == 1) {
                /* We are doing a 2D export... */
-               if (eyes == EYES_LEFT) {
+               if (eyes == Eyes::LEFT) {
                        /* ...but we got some 3D data; put the left eye into the output... */
-                       eyes = EYES_BOTH;
-               } else if (eyes == EYES_RIGHT) {
+                       eyes = Eyes::BOTH;
+               } else if (eyes == Eyes::RIGHT) {
                        /* ...and ignore the right eye.*/
-                       return shared_ptr<FFmpegFileEncoder>();
+                       return {};
                }
        }
 
-       map<Eyes, boost::shared_ptr<FFmpegFileEncoder> >::const_iterator i = _encoders.find (eyes);
+       auto i = _encoders.find (eyes);
        DCPOMATIC_ASSERT (i != _encoders.end());
        return i->second;
 }
@@ -311,15 +300,15 @@ FFmpegEncoder::FileEncoderSet::get (Eyes eyes) const
 void
 FFmpegEncoder::FileEncoderSet::flush ()
 {
-       for (map<Eyes, boost::shared_ptr<FFmpegFileEncoder> >::iterator i = _encoders.begin(); i != _encoders.end(); ++i) {
-               i->second->flush ();
+       for (auto& i: _encoders) {
+               i.second->flush ();
        }
 }
 
 void
 FFmpegEncoder::FileEncoderSet::audio (shared_ptr<AudioBuffers> a)
 {
-       for (map<Eyes, boost::shared_ptr<FFmpegFileEncoder> >::iterator i = _encoders.begin(); i != _encoders.end(); ++i) {
-               i->second->audio (a);
+       for (auto& i: _encoders) {
+               i.second->audio (a);
        }
 }