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* @short_description: audio transcoder interface
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* The RBEncoder interface provides transcoding between audio formats based on
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* media types. Media types are conceptually similar to MIME types, and overlap
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* in many cases, but the media type for an encoding is not always the same as the
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* MIME type for files using that encoding.
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* The encoder picks the output format from a list provided by the caller,
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* limited by the available codecs. It operatees asynchronously and provides
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* status updates in the form of signals.
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* A new encoder instance should be created for each file that is transcoded.
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* encoding profiles. The encoder implementation operates asynchronously and
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* provides status updates in the form of signals emitted on the main thread.
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* A new encoder instance should be created for each file that is transcoded
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static void rb_encoder_factory_class_init (RBEncoderFactoryClass *klass);
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* @encoder: the #RBEncoder
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* @entry: the #RhythmDBEntry to transcode
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* @dest: destination file URI
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* @dest_media_type: destination media type, or NULL to just copy it
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* Initiates encoding, transcoding to the specified media type if it doesn't match
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* the current media type of the entry. The caller should use rb_encoder_get_media_type
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* to select a destination media type.
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* Encoding and error reporting takes places asynchronously. The caller should wait
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* @profile: encoding profile to use, or NULL to just copy
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* Initiates encoding, transcoding to the specified profile if specified.
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* Encoding and error reporting takes place asynchronously. The caller should wait
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* for the 'completed' signal which indicates it has either completed or failed.
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rb_encoder_encode (RBEncoder *encoder,
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RhythmDBEntry *entry,
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const char *dest,
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const char *dest_media_type)
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GstEncodingProfile *profile)
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RBEncoderIface *iface = RB_ENCODER_GET_IFACE (encoder);
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iface->encode (encoder, entry, dest, dest_media_type);
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iface->encode (encoder, entry, dest, profile);
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* rb_encoder_get_media_type:
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* @encoder: a #RBEncoder
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* @entry: the source #RhythmDBEntry
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* @dest_media_types: (element-type utf8): media type strings in order of preference
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* @media_type: (out callee-allocates) (allow-none): returns the selected media type, if any
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* @extension: (out callee-allocates) (allow-none): returns the file extension associated with the selected media type, if any
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* Identifies the first media type in the list that the encoder can actually encode to.
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* The file extension (eg. '.mp3' for audio/mpeg) associated with the selected type is
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* Return value: TRUE if a format was identified
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rb_encoder_get_media_type (RBEncoder *encoder,
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RhythmDBEntry *entry,
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GList *dest_media_types,
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RBEncoderIface *iface = RB_ENCODER_GET_IFACE (encoder);
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return iface->get_media_type (encoder, entry, dest_media_types, media_type, extension);
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* rb_encoder_get_missing_plugins:
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* @encoder: a #RBEncoder
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* @media_type: the media type required
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* @profile: an encoding profile
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* @details: (out callee-allocates): returns plugin installer detail strings
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* @descriptions: (out callee-allocates): returns plugin descriptions
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* Retrieves the plugin installer detail strings for any missing plugins
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* required to encode the specified media type.
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* Retrieves the plugin installer detail strings and descriptions
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* for any missing plugins required to use the specified encoding profile.
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* Return value: %TRUE if some detail strings are returned, %FALSE otherwise
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rb_encoder_get_missing_plugins (RBEncoder *encoder,
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const char *media_type,
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GstEncodingProfile *profile,
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char ***descriptions)
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RBEncoderIface *iface = RB_ENCODER_GET_IFACE (encoder);
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return iface->get_missing_plugins (encoder, media_type, details);
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return iface->get_missing_plugins (encoder, profile, details, descriptions);
added
removed
backends/rb-encoder.c
