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Check for the presence of the drms atom in MP4 files

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This commit is contained in:
Lukáš Lalinský 2011-03-29 15:41:17 +02:00
parent 8f42d5b594
commit 97cd58bc65
4 changed files with 21 additions and 4 deletions
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6
taglib/mp4/mp4atom.cpp
View File

@ -35,9 +35,10 @@
using namespace TagLib;
const char *MP4::Atom::containers[10] = {
const char *MP4::Atom::containers[11] = {
"moov", "udta", "mdia", "meta", "ilst",
"stbl", "minf", "moof", "traf", "trak",
"stsd"
};
MP4::Atom::Atom(File *file)
@ -82,6 +83,9 @@ MP4::Atom::Atom(File *file)
if(name == "meta") {
file->seek(4, File::Current);
}
else if(name == "stsd") {
file->seek(8, File::Current);
}
while(file->tell() < offset + length) {
MP4::Atom *child = new MP4::Atom(file);
children.append(child);

4
taglib/mp4/mp4atom.h
View File

@ -53,8 +53,8 @@ namespace TagLib {
TagLib::ByteVector name;
AtomList children;
private:
static const int numContainers = 10;
static const char *containers[10];
static const int numContainers = 11;
static const char *containers[11];
};
//! Root-level atoms

14
taglib/mp4/mp4properties.cpp
View File

@ -40,13 +40,14 @@ using namespace TagLib;
class MP4::Properties::PropertiesPrivate
{
public:
PropertiesPrivate() : length(0), bitrate(0), sampleRate(0), channels(0), bitsPerSample(0) {}
PropertiesPrivate() : length(0), bitrate(0), sampleRate(0), channels(0), bitsPerSample(0), encrypted(false) {}
int length;
int bitrate;
int sampleRate;
int channels;
int bitsPerSample;
bool encrypted;
};
MP4::Properties::Properties(File *file, MP4::Atoms *atoms, ReadStyle style)
@ -129,6 +130,11 @@ MP4::Properties::Properties(File *file, MP4::Atoms *atoms, ReadStyle style)
}
}
}
MP4::Atom *drms = atom->find("drms");
if(drms) {
d->encrypted = true;
}
}
MP4::Properties::~Properties()
@ -166,4 +172,10 @@ MP4::Properties::bitsPerSample() const
return d->bitsPerSample;
}
bool
MP4::Properties::isEncrypted() const
{
return d->encrypted;
}
#endif

1
taglib/mp4/mp4properties.h
View File

@ -48,6 +48,7 @@ namespace TagLib {
virtual int sampleRate() const;
virtual int channels() const;
virtual int bitsPerSample() const;
bool isEncrypted() const;
private:
class PropertiesPrivate;