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authorCarl Hetherington <cth@carlh.net>2024-03-19 16:29:13 +0100
committerCarl Hetherington <cth@carlh.net>2024-04-21 23:18:19 +0200
commit1fc8c0c6d045404732497ba70bd2eccfbe4cc6f6 (patch)
tree4bd147c2a25b6314aeffb6ccc9b69f23c7ae8674 /src/lib/ffmpeg_encoder.cc
parentd3b5b533ebba1a1534eb37cc41032876a48a3d82 (diff)
Rename Encoder -> FilmEncoder, and subclasses.
Diffstat (limited to 'src/lib/ffmpeg_encoder.cc')
-rw-r--r--src/lib/ffmpeg_encoder.cc315
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);
- }
-}