gstreamermm: Gst::QueryConvert Class Reference
A convert query object. More...
Inheritance diagram for Gst::QueryConvert:
Collaboration diagram for Gst::QueryConvert:
Public Member Functions | |
| void | set (Format src_format, gint64 src_value, Format dest_format, gint64 dest_value) |
| Answer a convert query by setting the requested values. More... | |
| void | parse (Format& src_format, gint64& src_value, Format& dest_format, gint64& dest_value) const |
| Parse a convert query answer. More... | |
| void | parse (Format& dest_format, gint64& dest_value) const |
| Parse the destination format and value of a convert query answer. More... | |
| Format | parse_src_format () const |
| Parse the source format of a convert query answer, returning the format. More... | |
| gint64 | parse_src_value () const |
| Parse the source value of a convert query answer returning, the value. More... | |
| Format | parse_dest_format () const |
| Parse the destination format of a convert query answer, returning the format. More... | |
| gint64 | parse_dest_value () const |
| Parse the destination value of a convert query answer, returning the value. More... | |
 Public Member Functions inherited from Gst::Query | |
| void | reference () const |
| Increment the reference count for this object. More... | |
| void | unreference () const |
| Decrement the reference count for this object. More... | |
| GstQuery* | gobj () |
| Provides access to the underlying C instance. More... | |
| const GstQuery* | gobj () const |
| Provides access to the underlying C instance. More... | |
| GstQuery* | gobj_copy () const |
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More... | |
| Glib::RefPtr< Gst::Query > | create_writable () |
| Makes a writable query from the given query. More... | |
| Gst::Structure | get_structure () const |
| Get the structure of a query. More... | |
| QueryType | get_query_type () const |
| Get the Gst::QueryType of the query. More... | |
| void | set_caps_result (Glib::RefPtr< Gst::Caps > caps) |
| Set the caps result in query. More... | |
| void | set_accept_caps_result (bool res) |
| Set result as the result for the query. More... | |
| Public Member Functions inherited from Gst::MiniObject | |
| void | reference () const |
| Increment the reference count for this object. More... | |
| void | unreference () const |
| Decrement the reference count for this object. More... | |
| GstMiniObject* | gobj () |
| Provides access to the underlying C instance. More... | |
| const GstMiniObject* | gobj () const |
| Provides access to the underlying C instance. More... | |
| GstMiniObject* | gobj_copy () const |
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More... | |
| ~MiniObject () | |
| guint | get_flags () const |
| void | set_flags (const guint& value) |
| bool | lock (LockFlags flags) |
| Lock the mini-object with the specified access mode in flags. More... | |
| void | unlock (LockFlags flags) |
| Unlock the mini-object with the specified access mode in flags. More... | |
| bool | is_writable () const |
| If mini_object has the LOCKABLE flag set, check if the current EXCLUSIVE lock on object is the only one, this means that changes to the object will not be visible to any other object. More... | |
| Glib::RefPtr< MiniObject > | create_writable () |
| Checks if a mini-object is writable. More... | |
Static Public Member Functions | |
| static Glib::RefPtr < Gst::QueryConvert > | create (Format src_format, gint64 value, Format dest_format) |
| Constructs a new convert query object. More... | |
| Static Public Member Functions inherited from Gst::Query | |
| static Glib::RefPtr< Gst::Query > | create_buffering (Gst::Format format) |
| Constructs a new query object for querying the buffering status of a stream. More... | |
| static Glib::RefPtr< Gst::Query > | create_allocation (Glib::RefPtr< Gst::Caps > caps, bool need_pool) |
| Constructs a new query object for querying the allocation properties. More... | |
| static Glib::RefPtr< Gst::Query > | create_uri () |
| Constructs a new query URI query object. More... | |
| static Glib::RefPtr< Gst::Query > | create_scheduling () |
| Constructs a new query object for querying the scheduling properties. More... | |
| static Glib::RefPtr< Gst::Query > | create_drain () |
| Constructs a new query object for querying the drain state. More... | |
| static Glib::RefPtr< Gst::Query > | create_convert (Gst::Format format, gint64 value, Gst::Format dest_format) |
| Constructs a new convert query object. More... | |
| static Glib::RefPtr< Gst::Query > | create_position (Gst::Format format) |
| Constructs a new query stream position query object. More... | |
| static Glib::RefPtr< Gst::Query > | create_duration (Gst::Format format) |
| Constructs a new stream duration query object to query in the given format. More... | |
| static Glib::RefPtr< Gst::Query > | create_latency () |
| Constructs a new latency query object. More... | |
| static Glib::RefPtr< Gst::Query > | create_seeking (Gst::Format format) |
| Constructs a new query object for querying seeking properties of the stream. More... | |
| static Glib::RefPtr< Gst::Query > | create_formats () |
| Constructs a new query object for querying formats of the stream. More... | |
| static Glib::RefPtr< Gst::Query > | create_segment (Gst::Format format) |
| Constructs a new segment query object. More... | |
| static Glib::RefPtr< Gst::Query > | create_caps (Glib::RefPtr< Gst::Caps > filter) |
| Constructs a new query object for querying the caps. More... | |
| static Glib::RefPtr< Gst::Query > | create_accept_caps (Glib::RefPtr< Gst::Caps > filter) |
| Constructs a new query object for querying if caps are accepted. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from Gst::Query | |
| Query () | |
| void | operator delete (void*, std::size_t) |
| Protected Member Functions inherited from Gst::MiniObject | |
| MiniObject () | |
| void | operator delete (void*, std::size_t) |
| Static Protected Member Functions inherited from Gst::Query | |
| template<class QueryType > | |
| static Glib::RefPtr< QueryType > | wrap (GstQuery* query, bool take_copy=false) |
| Related Functions inherited from Gst::Query | |
| Glib::RefPtr< Gst::Query > | wrap (GstQuery* object, bool take_copy=false) |
| A Glib::wrap() method for this object. More... | |
| Related Functions inherited from Gst::MiniObject | |
| Glib::RefPtr< Gst::MiniObject > | wrap (GstMiniObject* object, bool take_copy=false) |
| A Glib::wrap() method for this object. More... | |
Detailed Description
A convert query object.
See create() for more details.
Member Function Documentation
|
static |
Constructs a new convert query object.
A convert query is used to ask for a conversion between one format and another.
- Parameters
-
src_format The source Gst::Format for the new query. value The value to convert. dest_format The target Gst::Format.
- Returns
- The new Gst::QueryConvert.
| void Gst::QueryConvert::parse | ( | Format& | src_format, |
| gint64 & | src_value, | ||
| Format& | dest_format, | ||
| gint64 & | dest_value | ||
| ) | const |
Parse a convert query answer.
Use the other parse() methods for parsing individual values.
- Parameters
-
src_format The storage for the Gst::Format of the source value. src_value The storage for the source value. dest_format The storage for the Gst::Format of the destination. value. dest_value The storage for the destination value.
| void Gst::QueryConvert::parse | ( | Format& | dest_format, |
| gint64 & | dest_value | ||
| ) | const |
Parse the destination format and value of a convert query answer.
- Parameters
-
dest_format The storage for the Gst::Format of the destination value. dest_value The storage for the destination value.
| Format Gst::QueryConvert::parse_dest_format | ( | ) | const |
Parse the destination format of a convert query answer, returning the format.
- Returns
- The Gst::Format of the destination value.
| gint64 Gst::QueryConvert::parse_dest_value | ( | ) | const |
Parse the destination value of a convert query answer, returning the value.
- Returns
- The destination value.
| Format Gst::QueryConvert::parse_src_format | ( | ) | const |
Parse the source format of a convert query answer, returning the format.
- Returns
- The Gst::Format of the source value.
| gint64 Gst::QueryConvert::parse_src_value | ( | ) | const |
Parse the source value of a convert query answer returning, the value.
- Returns
- The source value.
| void Gst::QueryConvert::set | ( | Format | src_format, |
| gint64 | src_value, | ||
| Format | dest_format, | ||
| gint64 | dest_value | ||
| ) |
Answer a convert query by setting the requested values.
- Parameters
-
src_format The source Gst::Format. src_value The source value. dest_format The destination Gst::Format. dest_value The destination value.
The documentation for this class was generated from the following file:
- gstreamermm/query.h