diff options
| author | Carl Hetherington <cth@carlh.net> | 2024-03-19 16:29:13 +0100 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2024-04-21 23:18:19 +0200 |
| commit | 1fc8c0c6d045404732497ba70bd2eccfbe4cc6f6 (patch) | |
| tree | 4bd147c2a25b6314aeffb6ccc9b69f23c7ae8674 /src/lib/ffmpeg_encoder.cc | |
| parent | d3b5b533ebba1a1534eb37cc41032876a48a3d82 (diff) | |
Rename Encoder -> FilmEncoder, and subclasses.
Diffstat (limited to 'src/lib/ffmpeg_encoder.cc')
| -rw-r--r-- | src/lib/ffmpeg_encoder.cc | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/src/lib/ffmpeg_encoder.cc b/src/lib/ffmpeg_encoder.cc deleted file mode 100644 index 60241b233..000000000 --- a/src/lib/ffmpeg_encoder.cc +++ /dev/null @@ -1,315 +0,0 @@ -/* - Copyright (C) 2017-2018 Carl Hetherington <cth@carlh.net> - - This file is part of DCP-o-matic. - - DCP-o-matic is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - DCP-o-matic is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>. - -*/ - - -#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 "compose.hpp" -#include <iostream> - -#include "i18n.h" - - -using std::cout; -using std::list; -using std::make_shared; -using std::shared_ptr; -using std::string; -using std::weak_ptr; -using boost::bind; -using boost::optional; -using namespace dcpomatic; -#if BOOST_VERSION >= 106100 -using namespace boost::placeholders; -#endif - - -FFmpegEncoder::FFmpegEncoder ( - shared_ptr<const Film> film, - weak_ptr<Job> job, - boost::filesystem::path output, - ExportFormat format, - bool mixdown_to_stereo, - bool split_reels, - bool audio_stream_per_channel, - int x264_crf - ) - : 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(); -} - - -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; - case 6: - 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; - } - /* XXX: maybe we should do something better for >6 channel DCPs */ - return map; -} - - -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; -} - - -void -FFmpegEncoder::go () -{ - { - auto job = _job.lock (); - DCPOMATIC_ASSERT (job); - job->sub (_("Encoding")); - } - - Waker waker; - - list<FileEncoderSet> file_encoders; - - int const files = _split_reels ? _film->reels().size() : 1; - for (int i = 0; i < files; ++i) { - - boost::filesystem::path filename = _output; - 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 - /// 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 - ) - ); - } - - auto reel_periods = _film->reels (); - auto reel = reel_periods.begin (); - auto encoder = file_encoders.begin (); - - auto const video_frame = DCPTime::from_frames (1, _film->video_frame_rate ()); - int const audio_frames = video_frame.frames_round(_film->audio_frame_rate()); - 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 time; time < _film->length(); time += video_frame) { - - if (file_encoders.size() > 1 && !reel->contains(time)) { - /* 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; - 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())); - } - } - } - - _history.event (); - - { - boost::mutex::scoped_lock lm (_mutex); - _last_time = time; - } - - auto job = _job.lock (); - if (job) { - job->set_progress(float(time.get()) / _film->length().get()); - } - - waker.nudge (); - - _butler.get_audio(Butler::Behaviour::BLOCKING, interleaved.data(), audio_frames); - /* XXX: inefficient; butler interleaves and we deinterleave again */ - 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++; - } - } - encoder->audio (deinterleaved); - } - - for (auto i: file_encoders) { - i.flush (); - } -} - -optional<float> -FFmpegEncoder::current_rate () const -{ - return _history.rate (); -} - -Frame -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 - ) -{ - if (three_d) { - _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) - ); - _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] = 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) - ); - } -} - -shared_ptr<FFmpegFileEncoder> -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 {}; - } - } - - auto i = _encoders.find (eyes); - DCPOMATIC_ASSERT (i != _encoders.end()); - return i->second; -} - -void -FFmpegEncoder::FileEncoderSet::flush () -{ - for (auto& i: _encoders) { - i.second->flush (); - } -} - -void -FFmpegEncoder::FileEncoderSet::audio (shared_ptr<AudioBuffers> a) -{ - for (auto& i: _encoders) { - i.second->audio (a); - } -} |
