/*
- Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
This file is part of libdcp.
#include "util.h"
#include "compose.hpp"
#include "crypto_context.h"
-#include "crypto_context.h"
+#include "subtitle_image.h"
#include <asdcp/AS_DCP.h>
#include <asdcp/KM_util.h>
+#include <asdcp/KM_log.h>
#include <libxml++/libxml++.h>
#include <boost/foreach.hpp>
#include <boost/algorithm/string.hpp>
using std::list;
using std::vector;
using std::map;
-using boost::shared_ptr;
+using std::shared_ptr;
using boost::split;
using boost::is_any_of;
using boost::shared_array;
-using boost::dynamic_pointer_cast;
+using std::dynamic_pointer_cast;
using boost::optional;
+using boost::starts_with;
using namespace dcp;
+static string const subtitle_smpte_ns = "http://www.smpte-ra.org/schemas/428-7/2010/DCST";
+
SMPTESubtitleAsset::SMPTESubtitleAsset ()
: MXF (SMPTE)
, _intrinsic_duration (0)
shared_ptr<cxml::Document> xml (new cxml::Document ("SubtitleReel"));
shared_ptr<ASDCP::TimedText::MXFReader> reader (new ASDCP::TimedText::MXFReader ());
- Kumu::Result_t r = reader->OpenRead (_file->string().c_str ());
+ Kumu::Result_t r = Kumu::RESULT_OK;
+ {
+ ASDCPErrorSuspender sus;
+ r = reader->OpenRead (_file->string().c_str ());
+ }
if (!ASDCP_FAILURE (r)) {
/* MXF-wrapped */
ASDCP::WriterInfo info;
_id = read_writer_info (info);
if (!_key_id) {
/* Not encrypted; read it in now */
- string s;
- reader->ReadTimedTextResource (s);
- xml->read_string (s);
+ reader->ReadTimedTextResource (_raw_xml);
+ xml->read_string (_raw_xml);
parse_xml (xml);
read_mxf_descriptor (reader, shared_ptr<DecryptionContext> (new DecryptionContext (optional<Key>(), SMPTE)));
}
} else {
/* Plain XML */
try {
+ _raw_xml = dcp::file_to_string (file);
xml.reset (new cxml::Document ("SubtitleReel"));
xml->read_file (file);
parse_xml (xml);
_id = _xml_id = remove_urn_uuid (xml->string_child ("Id"));
} catch (cxml::Error& e) {
boost::throw_exception (
- DCPReadError (
+ ReadError (
String::compose (
"Failed to read subtitle file %1; MXF failed with %2, XML failed with %3",
file, static_cast<int> (r), e.what ()
)
);
}
+
+ /* Try to read PNG files from the same folder that the XML is in; the wisdom of this is
+ debatable, at best...
+ */
+ BOOST_FOREACH (shared_ptr<Subtitle> i, _subtitles) {
+ shared_ptr<SubtitleImage> im = dynamic_pointer_cast<SubtitleImage>(i);
+ if (im && im->png_image().size() == 0) {
+ /* Even more dubious; allow <id>.png or urn:uuid:<id>.png */
+ boost::filesystem::path p = file.parent_path() / String::compose("%1.png", im->id());
+ if (boost::filesystem::is_regular_file(p)) {
+ im->read_png_file (p);
+ } else if (starts_with (im->id(), "urn:uuid:")) {
+ p = file.parent_path() / String::compose("%1.png", remove_urn_uuid(im->id()));
+ if (boost::filesystem::is_regular_file(p)) {
+ im->read_png_file (p);
+ }
+ }
+ }
+ }
+ _standard = dcp::SMPTE;
+ }
+
+ /* Check that all required image data have been found */
+ BOOST_FOREACH (shared_ptr<Subtitle> i, _subtitles) {
+ shared_ptr<SubtitleImage> im = dynamic_pointer_cast<SubtitleImage>(i);
+ if (im && im->png_image().size() == 0) {
+ throw MissingSubtitleImageError (im->id());
+ }
}
}
/* Now we need to drop down to xmlpp */
xmlpp::Node::NodeList c = xml->node()->get_children ();
for (xmlpp::Node::NodeList::const_iterator i = c.begin(); i != c.end(); ++i) {
xmlpp::Element const * e = dynamic_cast<xmlpp::Element const *> (*i);
ASDCP::TimedText::TimedTextDescriptor descriptor;
reader->FillTimedTextDescriptor (descriptor);
- /* Load fonts */
+ /* Load fonts and images */
for (
ASDCP::TimedText::ResourceList_t::const_iterator i = descriptor.ResourceList.begin();
i != descriptor.ResourceList.end();
++i) {
- if (i->Type == ASDCP::TimedText::MT_OPENTYPE) {
- ASDCP::TimedText::FrameBuffer buffer;
- buffer.Capacity (10 * 1024 * 1024);
- reader->ReadAncillaryResource (i->ResourceID, buffer, dec->context(), dec->hmac());
+ ASDCP::TimedText::FrameBuffer buffer;
+ buffer.Capacity (10 * 1024 * 1024);
+ reader->ReadAncillaryResource (i->ResourceID, buffer, dec->context(), dec->hmac());
- char id[64];
- Kumu::bin2UUIDhex (i->ResourceID, ASDCP::UUIDlen, id, sizeof (id));
+ char id[64];
+ Kumu::bin2UUIDhex (i->ResourceID, ASDCP::UUIDlen, id, sizeof (id));
- shared_array<uint8_t> data (new uint8_t[buffer.Size()]);
- memcpy (data.get(), buffer.RoData(), buffer.Size());
+ shared_array<uint8_t> data (new uint8_t[buffer.Size()]);
+ memcpy (data.get(), buffer.RoData(), buffer.Size());
- list<shared_ptr<SMPTELoadFontNode> >::const_iterator j = _load_font_nodes.begin ();
+ switch (i->Type) {
+ case ASDCP::TimedText::MT_OPENTYPE:
+ {
+ auto j = _load_font_nodes.begin();
while (j != _load_font_nodes.end() && (*j)->urn != id) {
++j;
}
if (j != _load_font_nodes.end ()) {
- _fonts.push_back (Font ((*j)->id, (*j)->urn, Data (data, buffer.Size ())));
+ _fonts.push_back (Font ((*j)->id, (*j)->urn, ArrayData (data, buffer.Size ())));
}
+ break;
+ }
+ case ASDCP::TimedText::MT_PNG:
+ {
+ auto j = _subtitles.begin();
+ while (j != _subtitles.end() && ((!dynamic_pointer_cast<SubtitleImage>(*j)) || dynamic_pointer_cast<SubtitleImage>(*j)->id() != id)) {
+ ++j;
+ }
+
+ if (j != _subtitles.end()) {
+ dynamic_pointer_cast<SubtitleImage>(*j)->set_png_image (ArrayData(data, buffer.Size()));
+ }
+ break;
+ }
+ default:
+ break;
}
}
Kumu::Result_t r = reader->OpenRead (_file->string().c_str ());
if (ASDCP_FAILURE (r)) {
boost::throw_exception (
- DCPReadError (
+ ReadError (
String::compose ("Could not read encrypted subtitle MXF (%1)", static_cast<int> (r))
)
);
}
- string s;
shared_ptr<DecryptionContext> dec (new DecryptionContext (key, SMPTE));
- reader->ReadTimedTextResource (s, dec->context(), dec->hmac());
+ reader->ReadTimedTextResource (_raw_xml, dec->context(), dec->hmac());
shared_ptr<cxml::Document> xml (new cxml::Document ("SubtitleReel"));
- xml->read_string (s);
+ xml->read_string (_raw_xml);
parse_xml (xml);
read_mxf_descriptor (reader, dec);
}
-list<shared_ptr<LoadFontNode> >
+vector<shared_ptr<LoadFontNode>>
SMPTESubtitleAsset::load_font_nodes () const
{
- list<shared_ptr<LoadFontNode> > lf;
+ vector<shared_ptr<LoadFontNode>> lf;
copy (_load_font_nodes.begin(), _load_font_nodes.end(), back_inserter (lf));
return lf;
}
SMPTESubtitleAsset::valid_mxf (boost::filesystem::path file)
{
ASDCP::TimedText::MXFReader reader;
+ Kumu::DefaultLogSink().UnsetFilterFlag(Kumu::LOG_ALLOW_ALL);
Kumu::Result_t r = reader.OpenRead (file.string().c_str ());
+ Kumu::DefaultLogSink().SetFilterFlag(Kumu::LOG_ALLOW_ALL);
return !ASDCP_FAILURE (r);
}
{
xmlpp::Document doc;
xmlpp::Element* root = doc.create_root_node ("dcst:SubtitleReel");
- root->set_namespace_declaration ("http://www.smpte-ra.org/schemas/428-7/2010/DCST", "dcst");
+ root->set_namespace_declaration (subtitle_smpte_ns, "dcst");
root->set_namespace_declaration ("http://www.w3.org/2001/XMLSchema", "xs");
root->add_child("Id", "dcst")->add_child_text ("urn:uuid:" + _xml_id);
descriptor.EditRate = ASDCP::Rational (_edit_rate.numerator, _edit_rate.denominator);
descriptor.EncodingName = "UTF-8";
+ /* Font references */
+
BOOST_FOREACH (shared_ptr<dcp::SMPTELoadFontNode> i, _load_font_nodes) {
- list<Font>::const_iterator j = _fonts.begin ();
+ auto j = _fonts.begin();
while (j != _fonts.end() && j->load_id != i->id) {
++j;
}
}
}
- descriptor.NamespaceName = "dcst";
- memcpy (descriptor.AssetID, writer_info.AssetUUID, ASDCP::UUIDlen);
+ /* Image subtitle references */
+
+ BOOST_FOREACH (shared_ptr<Subtitle> i, _subtitles) {
+ shared_ptr<SubtitleImage> si = dynamic_pointer_cast<SubtitleImage>(i);
+ if (si) {
+ ASDCP::TimedText::TimedTextResourceDescriptor res;
+ unsigned int c;
+ Kumu::hex2bin (si->id().c_str(), res.ResourceID, Kumu::UUID_Length, &c);
+ DCP_ASSERT (c == Kumu::UUID_Length);
+ res.Type = ASDCP::TimedText::MT_PNG;
+ descriptor.ResourceList.push_back (res);
+ }
+ }
+
+ descriptor.NamespaceName = subtitle_smpte_ns;
+ unsigned int c;
+ Kumu::hex2bin (_xml_id.c_str(), descriptor.AssetID, ASDCP::UUIDlen, &c);
+ DCP_ASSERT (c == Kumu::UUID_Length);
descriptor.ContainerDuration = _intrinsic_duration;
ASDCP::TimedText::MXFWriter writer;
- ASDCP::Result_t r = writer.OpenWrite (p.string().c_str(), writer_info, descriptor);
+ /* This header size is a guess. Empirically it seems that each subtitle reference is 90 bytes, and we need some extra.
+ The default size is not enough for some feature-length PNG sub projects (see DCP-o-matic #1561).
+ */
+ ASDCP::Result_t r = writer.OpenWrite (p.string().c_str(), writer_info, descriptor, _subtitles.size() * 90 + 16384);
if (ASDCP_FAILURE (r)) {
boost::throw_exception (FileError ("could not open subtitle MXF for writing", p.string(), r));
}
- /* XXX: no encryption */
r = writer.WriteTimedTextResource (xml_as_string (), enc.context(), enc.hmac());
if (ASDCP_FAILURE (r)) {
boost::throw_exception (MXFFileError ("could not write XML to timed text resource", p.string(), r));
}
+ /* Font payload */
+
BOOST_FOREACH (shared_ptr<dcp::SMPTELoadFontNode> i, _load_font_nodes) {
- list<Font>::const_iterator j = _fonts.begin ();
+ auto j = _fonts.begin();
while (j != _fonts.end() && j->load_id != i->id) {
++j;
}
if (j != _fonts.end ()) {
ASDCP::TimedText::FrameBuffer buffer;
- buffer.SetData (j->data.data().get(), j->data.size());
+ ArrayData data_copy(j->data);
+ buffer.SetData (data_copy.data(), data_copy.size());
buffer.Size (j->data.size());
r = writer.WriteAncillaryResource (buffer, enc.context(), enc.hmac());
if (ASDCP_FAILURE (r)) {
}
}
+ /* Image subtitle payload */
+
+ BOOST_FOREACH (shared_ptr<Subtitle> i, _subtitles) {
+ shared_ptr<SubtitleImage> si = dynamic_pointer_cast<SubtitleImage>(i);
+ if (si) {
+ ASDCP::TimedText::FrameBuffer buffer;
+ buffer.SetData (si->png_image().data(), si->png_image().size());
+ buffer.Size (si->png_image().size());
+ r = writer.WriteAncillaryResource (buffer, enc.context(), enc.hmac());
+ if (ASDCP_FAILURE(r)) {
+ boost::throw_exception (MXFFileError ("could not write PNG data to timed text resource", p.string(), r));
+ }
+ }
+ }
+
writer.Finalize ();
_file = p;
return false;
}
- list<shared_ptr<SMPTELoadFontNode> >::const_iterator i = _load_font_nodes.begin ();
- list<shared_ptr<SMPTELoadFontNode> >::const_iterator j = other->_load_font_nodes.begin ();
+ auto i = _load_font_nodes.begin();
+ auto j = other->_load_font_nodes.begin();
while (i != _load_font_nodes.end ()) {
if (j == other->_load_font_nodes.end ()) {
}
if (_language != other->_language) {
- note (DCP_ERROR, "Subtitle languages differ");
+ note (DCP_ERROR, String::compose("Subtitle languages differ (`%1' vs `%2')", _language.get_value_or("[none]"), other->_language.get_value_or("[none]")));
return false;
}
}
void
-SMPTESubtitleAsset::add_font (string load_id, boost::filesystem::path file)
+SMPTESubtitleAsset::add_font (string load_id, dcp::ArrayData data)
{
string const uuid = make_uuid ();
- _fonts.push_back (Font (load_id, uuid, file));
+ _fonts.push_back (Font(load_id, uuid, data));
_load_font_nodes.push_back (shared_ptr<SMPTELoadFontNode> (new SMPTELoadFontNode (load_id, uuid)));
}
projects / libdcp.git / blobdiff