NAME¶

Media::Convert::Asset::ProfileFactory - Create an output profile from an input video.

SYNOPSIS¶

    use Media::Convert::Asset;
    use Media::Convert::Pipe;
    use Media::Convert::Asset::ProfileFactory;
    package Media::Convert::Asset::Profile::myprofile;
    use Moose;
    extends Media::Convert::Asset::Profile::webm;
    has '+audio_samplerate' => (
        builder => '_probe_my_audiorate',
    );
    has '+audio_codec' => (
        default => 'vorbis',
    );
    sub _probe_exten {
        return 'my.webm',
    }
    sub _probe_my_audiorate {
        my $self = shift;
        return $self->reference->audio_samplerate / 2;
    }
    no Moose;
    package main;
    my $input = Media::Convert::Asset->new(url => "foo.mp4");
    my $profile = Media::Convert::Asset::ProfileFactory->create("myprofile", $input);
    my $output = Media::Convert::Asset->new(url => "foo." . $profile->exten, reference => $profile);
    Media::Convert::Pipe->new(inputs => [$input], output => $output)->run();
    # Or using an ad-hoc profile:
    $profile = Media::Convert::Asset::ProfileFactory->create("extraprofile", $input,
        {
                extraprofile => {
                        parent => "webm",
                        settings => { audio_codec => "vorbis", quality => 10 },
                }
        });
    # After this, using the profile happens exactly the same way.

DESCRIPTION¶

"Media::Convert::Asset::Profile::Base" is a subclass of Media::Convert::Asset, but with a number of the probing methods overridden so that they return values that are not in line with the reference of the given video.

The "Media::Convert::Asset::ProfileFactory"'s "create" method is a simple helper to:

• ensure that the relevant "Media::Convert::Asset::Profile::profile" module has been loaded (the module for the "parent" attribute of the ad-hoc profile, if one is chosen)
• create a Media::Convert::Asset subclass of the right type, with reference set to the passed input "Media::Convert::Asset" object.
• if an ad-hoc profile was selected, ensure that the relevant attributes of the resulting object are set to the values in the "settings" key of the ad-hoc profile's settings

CREATING NEW PROFILES¶

It is possible to create a new profile by extending an existing one. The "myprofile" profile in the above example demonstrates how to do so. Any property that is known by Media::Convert::Asset can be overridden in the manner given.

Alternatively, one can create new profiles in the ad-hoc manner. This is easier, since it only requires an extra parameter be passed to the "create" function; however, profiles created in this manner can only hardcode values, and cannot vary any parameters based on the input file. To create a profile that can do so, when the new profile just changes a minor detail of an existing profile, extend that profile and change the detail which you want to change. To create a new profile from scratch, extend the "Base" profile (see below).

PRE-EXISTING PROFILES¶

The following profiles are defined by "Media::Convert::Asset::ProfileFactory":

SEE ALSO¶

Media::Convert::Asset, Media::Convert::Profile::mp4, Media::Convert::Profile::mpeg2, Media::Convert::Profile::copy