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protection: Add a new definition for unspecified system protection

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In some cases the system protection ID is not present in the contents
or in their metadata.
This define is used to set the value of the "system_id" field in GstProtectionEvent,
with this value, the application will use an external information to choose which
protection system to use.

Example: The matroskademux uses this value in the case of encrypted WebM,
the application will choose the appropriate protection system based on the information
received through EME API.

https://bugzilla.gnome.org/show_bug.cgi?id=797231
This commit is contained in:
Yacine Bandou 2018-10-01 12:11:47 +02:00 committed by Thibault Saunier
parent 22d0f40716
commit 05a3da347b
2 changed files with 19 additions and 0 deletions
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1
docs/gst/gstreamer-sections.txt
View file

@ -2506,6 +2506,7 @@ gst_buffer_get_protection_meta
gst_protection_select_system
gst_protection_filter_systems_by_available_decryptors
GST_PROTECTION_SYSTEM_ID_CAPS_FIELD
GST_PROTECTION_UNSPECIFIED_SYSTEM_ID
<SUBSECTION Standard>
GST_PROTECTION_META_API_TYPE
GST_PROTECTION_META_INFO

18
gst/gstprotection.h
View file

@ -34,6 +34,24 @@ G_BEGIN_DECLS
*/
#define GST_PROTECTION_SYSTEM_ID_CAPS_FIELD "protection-system"
/**
* GST_PROTECTION_UNSPECIFIED_SYSTEM_ID:
*
* The protection system value of the unspecified UUID.
* In some cases the system protection ID is not present in the contents or in their
* metadata, as encrypted WebM.
* This define is used to set the value of the "system_id" field in GstProtectionEvent,
* with this value, the application will use an external information to choose which
* protection system to use.
*
* Example: The matroskademux uses this value in the case of encrypted WebM,
* the application will choose the appropriate protection system based on the information
* received through EME API.
*
* Since: 1.16
*/
#define GST_PROTECTION_UNSPECIFIED_SYSTEM_ID "unspecified.gstreamer.org"
typedef struct _GstProtectionMeta GstProtectionMeta;
/**
* GstProtectionMeta: