FLV::AMFReader - Wrapper for the AMF::Perl deserializer
This is a subclass of AMF::Perl::IO::Deserializer.
That class is optimized for Flash Remoting communications. We are
instead just interested in the protocol for the data payload of those
messages, since that's all that FLV carries.
So, this class is a hack. We override the
AMF::Perl::IO::Deserializer constructor so that it doesn't start parsing
immediately. Also, we pass it a string instead of an instantiated
AMF::Perl::IO::InputStream.
Also, as of this writing AMF::Perl was at v0.15, which lacked
support for hashes. So, we hack that in. Hopefully we did it in a
future-friendly way...
- $pkg->new($content)
- Creates a minimal AMF::Perl::IO::Deserializer instance.
- $self->read_flv_meta()
- Returns an array of anonymous data structures.
Parse AMF data from a block of FLV data. This method of very
lenient. If there are any parsing errors, that data is just ignored and
any successfully parsed data is returned.
We expect there to be exactly two return values, but this
method is generic and is happy to return anywhere from zero to twenty
data.
- $self->readMixedArray()
- Returns a populated hashref.
This is a workaround for versions of AMF::Perl which did not
handle hashes (namely v0.15 and earlier). This method is only installed
if a method of the same name does not exist in the superclass.
This should be removed when a newer release of AMF::Perl is
available.
- $self->readData($type)
- This is a minimal override of readData() in the superclass to add
support for mixed arrays (aka hashes).
As above, it is only installed if AMF::Perl::IO::Deserializer
lacks a readMixedArray() method.