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elementfactory: add DECRYPTOR class defines

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An element that performs decryption does not naturally fit within any
of the existing element factory class types. It is useful to be able
to easily get a list of all elements that support decryption so that
a union can be computed between the protection systems that have a
supported decryptor and the allowed protection systems for a particular
stream.

This commit adds a new GST_ELEMENT_FACTORY_TYPE_DECRYPTOR and its
associated string identifier "Decryptor". It also adds
GST_ELEMENT_FACTORY_TYPE_DECRYPTOR to GST_ELEMENT_FACTORY_TYPE_DECODABLE
so that uridecodebin can auto-plug a decryption element.

https://bugzilla.gnome.org/show_bug.cgi?id=705991
This commit is contained in:
Alex Ashley 2015-03-16 13:11:59 +00:00 committed by Tim-Philipp Müller
parent d70631fe99
commit b8f5a7ba45
2 changed files with 7 additions and 1 deletions
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3
gst/gstelementfactory.c
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@ -729,6 +729,9 @@ gst_element_factory_list_is_type (GstElementFactory * factory,
if (!res && (type & GST_ELEMENT_FACTORY_TYPE_FORMATTER))
res = (strstr (klass, "Formatter") != NULL);
if (!res && (type & GST_ELEMENT_FACTORY_TYPE_DECRYPTOR))
res = (strstr (klass, "Decryptor") != NULL);
/* Filter by media type now, we only test if it
* matched any of the types above or only checking the media
* type was requested. */

5
gst/gstelementfactory.h
View file

@ -88,6 +88,7 @@ gboolean gst_element_register (GstPlugin *plug
* @GST_ELEMENT_FACTORY_TYPE_PARSER: Parser elements
* @GST_ELEMENT_FACTORY_TYPE_PAYLOADER: Payloader elements
* @GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER: Depayloader elements
* @GST_ELEMENT_FACTORY_TYPE_DECRYPTOR: Elements handling decryption
* @GST_ELEMENT_FACTORY_TYPE_MAX_ELEMENTS: Private, do not use
* @GST_ELEMENT_FACTORY_TYPE_MEDIA_VIDEO: Elements handling video media types
* @GST_ELEMENT_FACTORY_TYPE_MEDIA_AUDIO: Elements handling audio media types
@ -115,6 +116,7 @@ typedef guint64 GstElementFactoryListType;
#define GST_ELEMENT_FACTORY_TYPE_PAYLOADER (G_GUINT64_CONSTANT (1) << 7)
#define GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER (G_GUINT64_CONSTANT (1) << 8)
#define GST_ELEMENT_FACTORY_TYPE_FORMATTER (G_GUINT64_CONSTANT (1) << 9)
#define GST_ELEMENT_FACTORY_TYPE_DECRYPTOR (G_GUINT64_CONSTANT (1) << 10)
#define GST_ELEMENT_FACTORY_TYPE_MAX_ELEMENTS (G_GUINT64_CONSTANT (1) << 48)
@ -187,7 +189,7 @@ typedef guint64 GstElementFactoryListType;
* Type: GstElementFactoryListType
*/
#define GST_ELEMENT_FACTORY_TYPE_DECODABLE \
(GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_DEMUXER | GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER | GST_ELEMENT_FACTORY_TYPE_PARSER)
(GST_ELEMENT_FACTORY_TYPE_DECODER | GST_ELEMENT_FACTORY_TYPE_DEMUXER | GST_ELEMENT_FACTORY_TYPE_DEPAYLOADER | GST_ELEMENT_FACTORY_TYPE_PARSER | GST_ELEMENT_FACTORY_TYPE_DECRYPTOR)
/* Element klass defines */
#define GST_ELEMENT_FACTORY_KLASS_DECODER "Decoder"
@ -200,6 +202,7 @@ typedef guint64 GstElementFactoryListType;
#define GST_ELEMENT_FACTORY_KLASS_PAYLOADER "Payloader"
#define GST_ELEMENT_FACTORY_KLASS_DEPAYLOADER "Depayloader"
#define GST_ELEMENT_FACTORY_KLASS_FORMATTER "Formatter"
#define GST_ELEMENT_FACTORY_KLASS_DECRYPTOR "Decryptor"
#define GST_ELEMENT_FACTORY_KLASS_MEDIA_VIDEO "Video"
#define GST_ELEMENT_FACTORY_KLASS_MEDIA_AUDIO "Audio"