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Cleanup: extract write_mca_subdescriptors().
[libdcp.git] / src / cpl.cc
diff --git a/src/cpl.cc b/src/cpl.cc
index 0e431cfc94b46458336ca4eb0a2319faef027c45..f3cebe3713d9aebcd4c82407d7467b1d13fae859 100644 (file)
--- a/src/cpl.cc
+++ b/src/cpl.cc
@@ -352,6 +352,79 @@ CPL::read_composition_metadata_asset (cxml::ConstNodePtr node)
 }
 
 
+void
+CPL::write_mca_subdescriptors(xmlpp::Element* parent, shared_ptr<const SoundAsset> asset) const
+{
+       auto reader = asset->start_read ();
+       ASDCP::MXF::SoundfieldGroupLabelSubDescriptor* soundfield;
+       ASDCP::Result_t r = reader->reader()->OP1aHeader().GetMDObjectByType(
+               asdcp_smpte_dict->ul(ASDCP::MDD_SoundfieldGroupLabelSubDescriptor),
+               reinterpret_cast<ASDCP::MXF::InterchangeObject**>(&soundfield)
+               );
+       if (KM_SUCCESS(r)) {
+               auto mca_subs = parent->add_child("mca:MCASubDescriptors");
+               mca_subs->set_namespace_declaration (mca_sub_descriptors_ns, "mca");
+               mca_subs->set_namespace_declaration (smpte_395_ns, "r0");
+               mca_subs->set_namespace_declaration (smpte_335_ns, "r1");
+               auto sf = mca_subs->add_child("SoundfieldGroupLabelSubDescriptor", "r0");
+               char buffer[64];
+               soundfield->InstanceUID.EncodeString(buffer, sizeof(buffer));
+               sf->add_child("InstanceID", "r1")->add_child_text("urn:uuid:" + string(buffer));
+               soundfield->MCALabelDictionaryID.EncodeString(buffer, sizeof(buffer));
+               sf->add_child("MCALabelDictionaryID", "r1")->add_child_text("urn:smpte:ul:" + string(buffer));
+               soundfield->MCALinkID.EncodeString(buffer, sizeof(buffer));
+               sf->add_child("MCALinkID", "r1")->add_child_text("urn:uuid:" + string(buffer));
+               soundfield->MCATagSymbol.EncodeString(buffer, sizeof(buffer));
+               sf->add_child("MCATagSymbol", "r1")->add_child_text(buffer);
+               if (!soundfield->MCATagName.empty()) {
+                       soundfield->MCATagName.get().EncodeString(buffer, sizeof(buffer));
+                       sf->add_child("MCATagName", "r1")->add_child_text(buffer);
+               }
+               if (!soundfield->RFC5646SpokenLanguage.empty()) {
+                       soundfield->RFC5646SpokenLanguage.get().EncodeString(buffer, sizeof(buffer));
+                       sf->add_child("RFC5646SpokenLanguage", "r1")->add_child_text(buffer);
+               }
+
+               list<ASDCP::MXF::InterchangeObject*> channels;
+               auto r = reader->reader()->OP1aHeader().GetMDObjectsByType(
+                       asdcp_smpte_dict->ul(ASDCP::MDD_AudioChannelLabelSubDescriptor),
+                       channels
+                       );
+
+               for (auto i: channels) {
+                       auto channel = reinterpret_cast<ASDCP::MXF::AudioChannelLabelSubDescriptor*>(i);
+                       if (static_cast<int>(channel->MCAChannelID) > asset->channels()) {
+                               continue;
+                       }
+                       auto ch = mca_subs->add_child("AudioChannelLabelSubDescriptor", "r0");
+                       channel->InstanceUID.EncodeString(buffer, sizeof(buffer));
+                       ch->add_child("InstanceID", "r1")->add_child_text("urn:uuid:" + string(buffer));
+                       channel->MCALabelDictionaryID.EncodeString(buffer, sizeof(buffer));
+                       ch->add_child("MCALabelDictionaryID", "r1")->add_child_text("urn:smpte:ul:" + string(buffer));
+                       channel->MCALinkID.EncodeString(buffer, sizeof(buffer));
+                       ch->add_child("MCALinkID", "r1")->add_child_text("urn:uuid:" + string(buffer));
+                       channel->MCATagSymbol.EncodeString(buffer, sizeof(buffer));
+                       ch->add_child("MCATagSymbol", "r1")->add_child_text(buffer);
+                       if (!channel->MCATagName.empty()) {
+                               channel->MCATagName.get().EncodeString(buffer, sizeof(buffer));
+                               ch->add_child("MCATagName", "r1")->add_child_text(buffer);
+                       }
+                       if (!channel->MCAChannelID.empty()) {
+                               ch->add_child("MCAChannelID", "r1")->add_child_text(raw_convert<string>(channel->MCAChannelID.get()));
+                       }
+                       if (!channel->RFC5646SpokenLanguage.empty()) {
+                               channel->RFC5646SpokenLanguage.get().EncodeString(buffer, sizeof(buffer));
+                               ch->add_child("RFC5646SpokenLanguage", "r1")->add_child_text(buffer);
+                       }
+                       if (!channel->SoundfieldGroupLinkID.empty()) {
+                               channel->SoundfieldGroupLinkID.get().EncodeString(buffer, sizeof(buffer));
+                               ch->add_child("SoundfieldGroupLinkID", "r1")->add_child_text("urn:uuid:" + string(buffer));
+                       }
+               }
+       }
+}
+
+
 /** Write a CompositionMetadataAsset node as a child of @param node provided
  *  the required metadata is stored in the object.  If any required metadata
  *  is missing this method will do nothing.
@@ -477,73 +550,7 @@ CPL::maybe_write_composition_metadata_asset (xmlpp::Element* node) const
        if (_reels.front()->main_sound()) {
                auto asset = _reels.front()->main_sound()->asset();
                if (asset) {
-                       auto reader = asset->start_read ();
-                       ASDCP::MXF::SoundfieldGroupLabelSubDescriptor* soundfield;
-                       ASDCP::Result_t r = reader->reader()->OP1aHeader().GetMDObjectByType(
-                               asdcp_smpte_dict->ul(ASDCP::MDD_SoundfieldGroupLabelSubDescriptor),
-                               reinterpret_cast<ASDCP::MXF::InterchangeObject**>(&soundfield)
-                               );
-                       if (KM_SUCCESS(r)) {
-                               auto mca_subs = meta->add_child("mca:MCASubDescriptors");
-                               mca_subs->set_namespace_declaration (mca_sub_descriptors_ns, "mca");
-                               mca_subs->set_namespace_declaration (smpte_395_ns, "r0");
-                               mca_subs->set_namespace_declaration (smpte_335_ns, "r1");
-                               auto sf = mca_subs->add_child("SoundfieldGroupLabelSubDescriptor", "r0");
-                               char buffer[64];
-                               soundfield->InstanceUID.EncodeString(buffer, sizeof(buffer));
-                               sf->add_child("InstanceID", "r1")->add_child_text("urn:uuid:" + string(buffer));
-                               soundfield->MCALabelDictionaryID.EncodeString(buffer, sizeof(buffer));
-                               sf->add_child("MCALabelDictionaryID", "r1")->add_child_text("urn:smpte:ul:" + string(buffer));
-                               soundfield->MCALinkID.EncodeString(buffer, sizeof(buffer));
-                               sf->add_child("MCALinkID", "r1")->add_child_text("urn:uuid:" + string(buffer));
-                               soundfield->MCATagSymbol.EncodeString(buffer, sizeof(buffer));
-                               sf->add_child("MCATagSymbol", "r1")->add_child_text(buffer);
-                               if (!soundfield->MCATagName.empty()) {
-                                       soundfield->MCATagName.get().EncodeString(buffer, sizeof(buffer));
-                                       sf->add_child("MCATagName", "r1")->add_child_text(buffer);
-                               }
-                               if (!soundfield->RFC5646SpokenLanguage.empty()) {
-                                       soundfield->RFC5646SpokenLanguage.get().EncodeString(buffer, sizeof(buffer));
-                                       sf->add_child("RFC5646SpokenLanguage", "r1")->add_child_text(buffer);
-                               }
-
-                               list<ASDCP::MXF::InterchangeObject*> channels;
-                               auto r = reader->reader()->OP1aHeader().GetMDObjectsByType(
-                                       asdcp_smpte_dict->ul(ASDCP::MDD_AudioChannelLabelSubDescriptor),
-                                       channels
-                                       );
-
-                               for (auto i: channels) {
-                                       auto channel = reinterpret_cast<ASDCP::MXF::AudioChannelLabelSubDescriptor*>(i);
-                                       if (static_cast<int>(channel->MCAChannelID) > asset->channels()) {
-                                               continue;
-                                       }
-                                       auto ch = mca_subs->add_child("AudioChannelLabelSubDescriptor", "r0");
-                                       channel->InstanceUID.EncodeString(buffer, sizeof(buffer));
-                                       ch->add_child("InstanceID", "r1")->add_child_text("urn:uuid:" + string(buffer));
-                                       channel->MCALabelDictionaryID.EncodeString(buffer, sizeof(buffer));
-                                       ch->add_child("MCALabelDictionaryID", "r1")->add_child_text("urn:smpte:ul:" + string(buffer));
-                                       channel->MCALinkID.EncodeString(buffer, sizeof(buffer));
-                                       ch->add_child("MCALinkID", "r1")->add_child_text("urn:uuid:" + string(buffer));
-                                       channel->MCATagSymbol.EncodeString(buffer, sizeof(buffer));
-                                       ch->add_child("MCATagSymbol", "r1")->add_child_text(buffer);
-                                       if (!channel->MCATagName.empty()) {
-                                               channel->MCATagName.get().EncodeString(buffer, sizeof(buffer));
-                                               ch->add_child("MCATagName", "r1")->add_child_text(buffer);
-                                       }
-                                       if (!channel->MCAChannelID.empty()) {
-                                               ch->add_child("MCAChannelID", "r1")->add_child_text(raw_convert<string>(channel->MCAChannelID.get()));
-                                       }
-                                       if (!channel->RFC5646SpokenLanguage.empty()) {
-                                               channel->RFC5646SpokenLanguage.get().EncodeString(buffer, sizeof(buffer));
-                                               ch->add_child("RFC5646SpokenLanguage", "r1")->add_child_text(buffer);
-                                       }
-                                       if (!channel->SoundfieldGroupLinkID.empty()) {
-                                               channel->SoundfieldGroupLinkID.get().EncodeString(buffer, sizeof(buffer));
-                                               ch->add_child("SoundfieldGroupLinkID", "r1")->add_child_text("urn:uuid:" + string(buffer));
-                                       }
-                               }
-                       }
+                       write_mca_subdescriptors(meta, asset);
                }
        }
 }
C++ library for handling digital cinema packages (DCPs).