Only add fonts to assets when they are required.
[dcpomatic.git] / src / lib / reel_writer.cc
index 47df4feb159ac458dc2556df203d3e9edfdc2b6e..062d3ca812441a984fbd79eeca912f3f58f89366 100644 (file)
@@ -22,6 +22,7 @@
 #include "audio_buffers.h"
 #include "compose.hpp"
 #include "config.h"
+#include "constants.h"
 #include "cross.h"
 #include "dcpomatic_log.h"
 #include "digester.h"
@@ -161,7 +162,7 @@ ReelWriter::ReelWriter (
                }
 
                _picture_asset->set_file (asset);
-               _picture_asset_writer = _picture_asset->start_write (asset, _first_nonexistent_frame > 0);
+               _picture_asset_writer = _picture_asset->start_write(asset, _first_nonexistent_frame > 0 ? dcp::PictureAsset::Behaviour::OVERWRITE_EXISTING : dcp::PictureAsset::Behaviour::MAKE_NEW);
        } else if (!text_only) {
                /* We already have a complete picture asset that we can just re-use */
                /* XXX: what about if the encryption key changes? */
@@ -177,7 +178,8 @@ ReelWriter::ReelWriter (
                _sound_asset = make_shared<dcp::SoundAsset> (
                        dcp::Fraction(film()->video_frame_rate(), 1),
                        film()->audio_frame_rate(),
-                       film()->audio_channels(),
+                       /* Always make 16-channel sound assets for SMPTE; libdcp will pad unused channels for us */
+                       standard == dcp::Standard::SMPTE ? MAX_DCP_AUDIO_CHANNELS : film()->audio_channels(),
                        lang ? *lang : dcp::LanguageTag("en-US"),
                        standard
                        );
@@ -190,12 +192,27 @@ ReelWriter::ReelWriter (
 
                DCPOMATIC_ASSERT (film()->directory());
 
+               auto mapped = film()->mapped_audio_channels();
+               std::vector<dcp::Channel> extra_active_channels;
+               auto add_if_mapped = [mapped, &extra_active_channels](dcp::Channel channel) {
+                       if (std::find(mapped.begin(), mapped.end(), static_cast<int>(channel)) != mapped.end()) {
+                               extra_active_channels.push_back(channel);
+                       }
+               };
+
+               add_if_mapped(dcp::Channel::HI);
+               add_if_mapped(dcp::Channel::VI);
+               add_if_mapped(dcp::Channel::BSL);
+               add_if_mapped(dcp::Channel::BSR);
+
                /* Write the sound asset into the film directory so that we leave the creation
                   of the DCP directory until the last minute.
                */
                _sound_asset_writer = _sound_asset->start_write (
                        film()->directory().get() / audio_asset_filename (_sound_asset, _reel_index, _reel_count, _content_summary),
-                       film()->contains_atmos_content()
+                       extra_active_channels,
+                       film()->contains_atmos_content() ? dcp::SoundAsset::AtmosSync::ENABLED : dcp::SoundAsset::AtmosSync::DISABLED,
+                       film()->limit_to_smpte_bv20() ? dcp::SoundAsset::MCASubDescriptors::DISABLED : dcp::SoundAsset::MCASubDescriptors::ENABLED
                        );
        }
 
@@ -460,9 +477,6 @@ maybe_add_text (
        int reel_count,
        optional<string> content_summary,
        list<ReferencedReelAsset> const & refs,
-       FontIdMap const& fonts,
-       shared_ptr<dcpomatic::Font> chosen_interop_font,
-       dcp::ArrayData default_font,
        shared_ptr<const Film> film,
        DCPTimePeriod period,
        boost::filesystem::path output_dcp,
@@ -474,19 +488,6 @@ maybe_add_text (
        shared_ptr<Result> reel_asset;
 
        if (asset) {
-               if (film->interop()) {
-                       if (chosen_interop_font) {
-                               /* We only add one font, as Interop will ignore subsequent ones (and some validators will
-                                * complain if they are even present)
-                                */
-                               asset->add_font(fonts.get(chosen_interop_font), chosen_interop_font->data().get_value_or(default_font));
-                       }
-               } else {
-                       for (auto const& font: fonts.map()) {
-                               asset->add_font(font.second, font.first->data().get_value_or(default_font));
-                       }
-               }
-
                if (auto interop = dynamic_pointer_cast<dcp::InteropSubtitleAsset>(asset)) {
                        auto directory = output_dcp / interop->id ();
                        boost::filesystem::create_directories (directory);
@@ -644,8 +645,6 @@ void
 ReelWriter::create_reel_text (
        shared_ptr<dcp::Reel> reel,
        list<ReferencedReelAsset> const & refs,
-       FontIdMap const& fonts,
-       shared_ptr<dcpomatic::Font> chosen_interop_font,
        int64_t duration,
        boost::filesystem::path output_dcp,
        bool ensure_subtitles,
@@ -653,7 +652,7 @@ ReelWriter::create_reel_text (
        ) const
 {
        auto subtitle = maybe_add_text<dcp::ReelInteropSubtitleAsset, dcp::ReelSMPTESubtitleAsset, dcp::ReelSubtitleAsset> (
-               _subtitle_asset, duration, reel, _reel_index, _reel_count, _content_summary, refs, fonts, chosen_interop_font, _default_font, film(), _period, output_dcp, _text_only
+               _subtitle_asset, duration, reel, _reel_index, _reel_count, _content_summary, refs, film(), _period, output_dcp, _text_only
                );
 
        if (subtitle) {
@@ -671,9 +670,6 @@ ReelWriter::create_reel_text (
                        _reel_count,
                        _content_summary,
                        refs,
-                       fonts,
-                       chosen_interop_font,
-                       _default_font,
                        film(),
                        _period,
                        output_dcp,
@@ -683,7 +679,7 @@ ReelWriter::create_reel_text (
 
        for (auto const& i: _closed_caption_assets) {
                auto a = maybe_add_text<dcp::ReelInteropClosedCaptionAsset, dcp::ReelSMPTEClosedCaptionAsset, dcp::ReelClosedCaptionAsset> (
-                       i.second, duration, reel, _reel_index, _reel_count, _content_summary, refs, fonts, chosen_interop_font, _default_font, film(), _period, output_dcp, _text_only
+                       i.second, duration, reel, _reel_index, _reel_count, _content_summary, refs, film(), _period, output_dcp, _text_only
                        );
                DCPOMATIC_ASSERT (a);
                a->set_annotation_text (i.first.name);
@@ -704,9 +700,6 @@ ReelWriter::create_reel_text (
                        _reel_count,
                        _content_summary,
                        refs,
-                       fonts,
-                       chosen_interop_font,
-                       _default_font,
                        film(),
                        _period,
                        output_dcp,
@@ -751,8 +744,6 @@ ReelWriter::create_reel_markers (shared_ptr<dcp::Reel> reel) const
 shared_ptr<dcp::Reel>
 ReelWriter::create_reel (
        list<ReferencedReelAsset> const & refs,
-       FontIdMap const & fonts,
-       shared_ptr<dcpomatic::Font> chosen_interop_font,
        boost::filesystem::path output_dcp,
        bool ensure_subtitles,
        set<DCPTextTrack> ensure_closed_captions
@@ -774,7 +765,7 @@ ReelWriter::create_reel (
                create_reel_markers (reel);
        }
 
-       create_reel_text (reel, refs, fonts, chosen_interop_font, duration, output_dcp, ensure_subtitles, ensure_closed_captions);
+       create_reel_text(reel, refs, duration, output_dcp, ensure_subtitles, ensure_closed_captions);
 
        if (_atmos_asset) {
                reel->add (make_shared<dcp::ReelAtmosAsset>(_atmos_asset, 0));
@@ -820,7 +811,7 @@ ReelWriter::write (shared_ptr<const AudioBuffers> audio)
        }
 
        DCPOMATIC_ASSERT (audio);
-       _sound_asset_writer->write (audio->data(), audio->frames());
+       _sound_asset_writer->write(audio->data(), audio->channels(), audio->frames());
 }
 
 
@@ -920,7 +911,7 @@ ReelWriter::convert_vertical_position(StringText const& subtitle, dcp::SubtitleS
 
 
 void
-ReelWriter::write (PlayerText subs, TextType type, optional<DCPTextTrack> track, DCPTimePeriod period, FontIdMap const& fonts)
+ReelWriter::write(PlayerText subs, TextType type, optional<DCPTextTrack> track, DCPTimePeriod period, FontIdMap const& fonts, shared_ptr<dcpomatic::Font> chosen_interop_font)
 {
        shared_ptr<dcp::SubtitleAsset> asset;
 
@@ -960,10 +951,18 @@ ReelWriter::write (PlayerText subs, TextType type, optional<DCPTextTrack> track,
                i.set_out (dcp::Time(period.to.seconds() - _period.from.seconds(), tcr));
                i.set_v_position(convert_vertical_position(i, film()->interop() ? dcp::SubtitleStandard::INTEROP : dcp::SubtitleStandard::SMPTE_2014));
                auto sub = make_shared<dcp::SubtitleString>(i);
-               if (type == TextType::OPEN_SUBTITLE) {
-                       sub->set_font(fonts.get(i.font));
-               }
+               /* i.font is a shared_ptr<Font> which uniquely identifies the font we want,
+                * though if we are Interop we can only have one font, so we'll use the chosen
+                * one instead.
+                */
+               auto font = film()->interop() ? chosen_interop_font : i.font;
+               /* We can get the corresponding ID from fonts */
+               auto const font_id_to_use = fonts.get(font);
+               /* Give this subtitle the correct font ID */
+               sub->set_font(font_id_to_use);
                asset->add(sub);
+               /* Make sure the asset LoadFonts the font we just asked for */
+               asset->ensure_font(font_id_to_use, font->data().get_value_or(_default_font));
        }
 
        for (auto i: subs.bitmap) {