X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fffmpeg_encoder.cc;h=cd03c7b93a1cf762b88add85347525b5bb0d9d40;hb=6abf2fdd53b14608561fcc1900507daea5b79fb7;hp=2d7d419979358dc31c00ccfa1e3ccf540566427e;hpb=895f945a6bababdf1964b0522d591db96368db22;p=dcpomatic.git diff --git a/src/lib/ffmpeg_encoder.cc b/src/lib/ffmpeg_encoder.cc index 2d7d41997..cd03c7b93 100644 --- a/src/lib/ffmpeg_encoder.cc +++ b/src/lib/ffmpeg_encoder.cc @@ -36,24 +36,31 @@ using std::string; using std::runtime_error; using std::cout; using std::pair; +using std::list; +using std::map; using boost::shared_ptr; using boost::bind; using boost::weak_ptr; +using boost::optional; +using namespace dcpomatic; - -FFmpegEncoder::FFmpegEncoder (shared_ptr film, weak_ptr job, boost::filesystem::path output, ExportFormat format, bool mixdown_to_stereo, int x264_crf) +/** @param key Key to use to encrypt MP4 outputs */ +FFmpegEncoder::FFmpegEncoder ( + shared_ptr film, + weak_ptr job, + boost::filesystem::path output, + ExportFormat format, + bool mixdown_to_stereo, + bool split_reels, + bool audio_stream_per_channel, + int x264_crf +#ifdef DCPOMATIC_VARIANT_SWAROOP + , optional key + , optional id +#endif + ) : Encoder (film, job) - , _file_encoder ( - _film->frame_size(), - _film->video_frame_rate(), - _film->audio_frame_rate(), - mixdown_to_stereo ? 2 : film->audio_channels(), - _film->log(), - format, - x264_crf, - output - ) - , _history (1000) + , _history (200) { _player->set_always_burn_open_subtitles (); _player->set_play_referenced (); @@ -66,23 +73,72 @@ FFmpegEncoder::FFmpegEncoder (shared_ptr film, weak_ptr job, bo map = AudioMapping (ch, 2); float const overall_gain = 2 / (4 + sqrt(2)); float const minus_3dB = 1 / sqrt(2); - 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); + 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 { - _output_audio_channels = ch; - map = AudioMapping (ch, ch); + /* 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); } } - _butler.reset (new Butler (_player, film->log(), map, _output_audio_channels)); + _butler.reset (new Butler(_player, map, _output_audio_channels, bind(&PlayerVideo::force, _1, FFmpegFileEncoder::pixel_format(format)), true, false)); + + int const files = split_reels ? film->reels().size() : 1; + for (int i = 0; i < files; ++i) { + + boost::filesystem::path filename = output; + string extension = boost::filesystem::extension (filename); + filename = boost::filesystem::change_extension (filename, ""); + + if (files > 1) { + /// TRANSLATORS: _reel%1 here is to be added to an export filename to indicate + /// which reel it is. Preserve the %1; it will be replaced with the reel number. + filename = filename.string() + String::compose(_("_reel%1"), i + 1); + } + + _file_encoders.push_back ( + FileEncoderSet ( + _film->frame_size(), + _film->video_frame_rate(), + _film->audio_frame_rate(), + _output_audio_channels, + format, + audio_stream_per_channel, + x264_crf, + _film->three_d(), + filename, + extension +#ifdef DCPOMATIC_VARIANT_SWAROOP + , key + , id +#endif + ) + ); + } } + void FFmpegEncoder::go () { @@ -92,13 +148,39 @@ FFmpegEncoder::go () job->sub (_("Encoding")); } + Waker waker; + + list reel_periods = _film->reels (); + list::const_iterator reel = reel_periods.begin (); + list::iterator encoder = _file_encoders.begin (); + DCPTime 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 deinterleaved (new 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) { - pair, DCPTime> v = _butler->get_video (); - _file_encoder.video (v.first, v.second); + + if (_file_encoders.size() > 1 && !reel->contains(i)) { + /* Next reel and file */ + ++reel; + ++encoder; + DCPOMATIC_ASSERT (reel != reel_periods.end()); + DCPOMATIC_ASSERT (encoder != _file_encoders.end()); + } + + for (int j = 0; j < gets_per_frame; ++j) { + Butler::Error e; + pair, DCPTime> v = _butler->get_video (true, &e); + _butler->rethrow (); + if (!v.first) { + throw ProgrammingError(__FILE__, __LINE__, String::compose("butler returned no video; error was %1", e.summary())); + } + shared_ptr fe = encoder->get (v.first->eyes()); + if (fe) { + fe->video(v.first, v.second); + } + } _history.event (); @@ -112,6 +194,8 @@ FFmpegEncoder::go () job->set_progress (float(i.get()) / _film->length().get()); } + waker.nudge (); + _butler->get_audio (interleaved, audio_frames); /* XXX: inefficient; butler interleaves and we deinterleave again */ float* p = interleaved; @@ -120,14 +204,16 @@ FFmpegEncoder::go () deinterleaved->data(k)[j] = *p++; } } - _file_encoder.audio (deinterleaved); + encoder->audio (deinterleaved); } delete[] interleaved; - _file_encoder.flush (); + BOOST_FOREACH (FileEncoderSet i, _file_encoders) { + i.flush (); + } } -float +optional FFmpegEncoder::current_rate () const { return _history.rate (); @@ -139,3 +225,89 @@ FFmpegEncoder::frames_done () const boost::mutex::scoped_lock lm (_mutex); return _last_time.frames_round (_film->video_frame_rate ()); } + +FFmpegEncoder::FileEncoderSet::FileEncoderSet ( + dcp::Size video_frame_size, + int video_frame_rate, + int audio_frame_rate, + int channels, + ExportFormat format, + bool audio_stream_per_channel, + int x264_crf, + bool three_d, + boost::filesystem::path output, + string extension +#ifdef DCPOMATIC_VARIANT_SWAROOP + , optional key + , optional 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( + 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 + ) + ); + /// TRANSLATORS: R here is an abbreviation for "right", to indicate the right-eye part of a 3D export + _encoders[EYES_RIGHT] = shared_ptr( + 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 + ) + ); + } else { + _encoders[EYES_BOTH] = shared_ptr( + 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 + ) + ); + } +} + +shared_ptr +FFmpegEncoder::FileEncoderSet::get (Eyes eyes) const +{ + if (_encoders.size() == 1) { + /* We are doing a 2D export... */ + 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) { + /* ...and ignore the right eye.*/ + return shared_ptr(); + } + } + + map >::const_iterator i = _encoders.find (eyes); + DCPOMATIC_ASSERT (i != _encoders.end()); + return i->second; +} + +void +FFmpegEncoder::FileEncoderSet::flush () +{ + for (map >::iterator i = _encoders.begin(); i != _encoders.end(); ++i) { + i->second->flush (); + } +} + +void +FFmpegEncoder::FileEncoderSet::audio (shared_ptr a) +{ + for (map >::iterator i = _encoders.begin(); i != _encoders.end(); ++i) { + i->second->audio (a); + } +}