X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gst%2Fgstquery.h;h=d19291e04c6b9aff4e93c19d1233979c3cbe1b17;hb=706e10ad0586bf98c829cdfaa079118447b94ef5;hp=20cbca110fe49991acf4c7ca79eecd66f80f57d1;hpb=6b4091a30d5c1eaf014b02e923325a15768921b5;p=platform%2Fupstream%2Fgstreamer.git diff --git a/gst/gstquery.h b/gst/gstquery.h index 20cbca1..d19291e 100644 --- a/gst/gstquery.h +++ b/gst/gstquery.h @@ -18,8 +18,8 @@ * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. + * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, + * Boston, MA 02110-1301, USA. */ @@ -27,18 +27,59 @@ #define __GST_QUERY_H__ #include +#include +#include + +G_BEGIN_DECLS + +typedef struct _GstQuery GstQuery; -#include #include -#include -#include -#include -G_BEGIN_DECLS +/** + * GstQueryTypeFlags: + * @GST_QUERY_TYPE_UPSTREAM: Set if the query can travel upstream. + * @GST_QUERY_TYPE_DOWNSTREAM: Set if the query can travel downstream. + * @GST_QUERY_TYPE_SERIALIZED: Set if the query should be serialized with data + * flow. + * + * #GstQueryTypeFlags indicate the aspects of the different #GstQueryType + * values. You can get the type flags of a #GstQueryType with the + * gst_query_type_get_flags() function. + */ +typedef enum { + GST_QUERY_TYPE_UPSTREAM = 1 << 0, + GST_QUERY_TYPE_DOWNSTREAM = 1 << 1, + GST_QUERY_TYPE_SERIALIZED = 1 << 2 +} GstQueryTypeFlags; + +/** + * GST_QUERY_TYPE_BOTH: (value 3) (type GstQueryTypeFlags) + * + * The same thing as #GST_QUERY_TYPE_UPSTREAM | #GST_QUERY_TYPE_DOWNSTREAM. + */ +#define GST_QUERY_TYPE_BOTH \ + ((GstQueryTypeFlags)(GST_QUERY_TYPE_UPSTREAM | GST_QUERY_TYPE_DOWNSTREAM)) + +#define GST_QUERY_NUM_SHIFT (8) + +/** + * GST_QUERY_MAKE_TYPE: + * @num: the query number to create + * @flags: the query flags + * + * when making custom query types, use this macro with the num and + * the given flags + */ +#define GST_QUERY_MAKE_TYPE(num,flags) \ + (((num) << GST_QUERY_NUM_SHIFT) | (flags)) + +#define FLAG(name) GST_QUERY_TYPE_##name + /** * GstQueryType: - * @GST_QUERY_NONE: invalid query type + * @GST_QUERY_UNKNOWN: unknown query type * @GST_QUERY_POSITION: current position in stream * @GST_QUERY_DURATION: total duration of the stream * @GST_QUERY_LATENCY: latency of stream @@ -48,66 +89,53 @@ G_BEGIN_DECLS * @GST_QUERY_SEGMENT: segment start/stop positions * @GST_QUERY_CONVERT: convert values between formats * @GST_QUERY_FORMATS: query supported formats for convert - * @GST_QUERY_BUFFERING: query available media for efficient seeking. Since - * 0.10.20. - * @GST_QUERY_CUSTOM: a custom application or element defined query. Since - * 0.10.22. - * @GST_QUERY_URI: query the URI of the source or sink. Since 0.10.22. + * @GST_QUERY_BUFFERING: query available media for efficient seeking. + * @GST_QUERY_CUSTOM: a custom application or element defined query. + * @GST_QUERY_URI: query the URI of the source or sink. * @GST_QUERY_ALLOCATION: the buffer allocation properties * @GST_QUERY_SCHEDULING: the scheduling properties * @GST_QUERY_ACCEPT_CAPS: the accept caps query * @GST_QUERY_CAPS: the caps query + * @GST_QUERY_DRAIN: wait till all serialized data is consumed downstream + * @GST_QUERY_CONTEXT: query the pipeline-local context from + * downstream or upstream (since 1.2) + * @GST_QUERY_BITRATE: the bitrate query (since 1.16) * * Standard predefined Query types */ /* NOTE: don't forget to update the table in gstquery.c when changing * this enum */ typedef enum { - GST_QUERY_NONE = 0, - GST_QUERY_POSITION, - GST_QUERY_DURATION, - GST_QUERY_LATENCY, - GST_QUERY_JITTER, /* not in draft-query, necessary? */ - GST_QUERY_RATE, - GST_QUERY_SEEKING, - GST_QUERY_SEGMENT, - GST_QUERY_CONVERT, - GST_QUERY_FORMATS, - GST_QUERY_BUFFERING, - GST_QUERY_CUSTOM, - GST_QUERY_URI, - GST_QUERY_ALLOCATION, - GST_QUERY_SCHEDULING, - GST_QUERY_ACCEPT_CAPS, - GST_QUERY_CAPS + GST_QUERY_UNKNOWN = GST_QUERY_MAKE_TYPE (0, 0), + GST_QUERY_POSITION = GST_QUERY_MAKE_TYPE (10, FLAG(BOTH)), + GST_QUERY_DURATION = GST_QUERY_MAKE_TYPE (20, FLAG(BOTH)), + GST_QUERY_LATENCY = GST_QUERY_MAKE_TYPE (30, FLAG(BOTH)), + GST_QUERY_JITTER = GST_QUERY_MAKE_TYPE (40, FLAG(BOTH)), + GST_QUERY_RATE = GST_QUERY_MAKE_TYPE (50, FLAG(BOTH)), + GST_QUERY_SEEKING = GST_QUERY_MAKE_TYPE (60, FLAG(BOTH)), + GST_QUERY_SEGMENT = GST_QUERY_MAKE_TYPE (70, FLAG(BOTH)), + GST_QUERY_CONVERT = GST_QUERY_MAKE_TYPE (80, FLAG(BOTH)), + GST_QUERY_FORMATS = GST_QUERY_MAKE_TYPE (90, FLAG(BOTH)), + GST_QUERY_BUFFERING = GST_QUERY_MAKE_TYPE (110, FLAG(BOTH)), + GST_QUERY_CUSTOM = GST_QUERY_MAKE_TYPE (120, FLAG(BOTH)), + GST_QUERY_URI = GST_QUERY_MAKE_TYPE (130, FLAG(BOTH)), + GST_QUERY_ALLOCATION = GST_QUERY_MAKE_TYPE (140, FLAG(DOWNSTREAM) | FLAG(SERIALIZED)), + GST_QUERY_SCHEDULING = GST_QUERY_MAKE_TYPE (150, FLAG(UPSTREAM)), + GST_QUERY_ACCEPT_CAPS = GST_QUERY_MAKE_TYPE (160, FLAG(BOTH)), + GST_QUERY_CAPS = GST_QUERY_MAKE_TYPE (170, FLAG(BOTH)), + GST_QUERY_DRAIN = GST_QUERY_MAKE_TYPE (180, FLAG(DOWNSTREAM) | FLAG(SERIALIZED)), + GST_QUERY_CONTEXT = GST_QUERY_MAKE_TYPE (190, FLAG(BOTH)), + GST_QUERY_BITRATE = GST_QUERY_MAKE_TYPE (200, FLAG(DOWNSTREAM)), } GstQueryType; +#undef FLAG -typedef struct _GstQueryTypeDefinition GstQueryTypeDefinition; -typedef struct _GstQuery GstQuery; - -/** - * GstQueryTypeDefinition: - * @value: the unique id of the Query type - * @nick: a short nick - * @description: a longer description of the query type - * @quark: the quark for the nick - * - * A Query Type definition - */ -struct _GstQueryTypeDefinition -{ - GstQueryType value; - const gchar *nick; - const gchar *description; - GQuark quark; -}; +GST_API GType _gst_query_type; -#define GST_TYPE_QUERY (gst_query_get_type()) +#define GST_TYPE_QUERY (_gst_query_type) #define GST_IS_QUERY(obj) (GST_IS_MINI_OBJECT_TYPE (obj, GST_TYPE_QUERY)) #define GST_QUERY_CAST(obj) ((GstQuery*)(obj)) #define GST_QUERY(obj) (GST_QUERY_CAST(obj)) - /** * GST_QUERY_TYPE: * @query: the query to query @@ -121,11 +149,31 @@ struct _GstQueryTypeDefinition * @query: the query to query * * Get a constant string representation of the #GstQueryType of the query. - * - * Since: 0.10.4 */ #define GST_QUERY_TYPE_NAME(query) (gst_query_type_get_name(GST_QUERY_TYPE(query))) +/** + * GST_QUERY_IS_UPSTREAM: + * @ev: the query to query + * + * Check if an query can travel upstream. + */ +#define GST_QUERY_IS_UPSTREAM(ev) !!(GST_QUERY_TYPE (ev) & GST_QUERY_TYPE_UPSTREAM) +/** + * GST_QUERY_IS_DOWNSTREAM: + * @ev: the query to query + * + * Check if an query can travel downstream. + */ +#define GST_QUERY_IS_DOWNSTREAM(ev) !!(GST_QUERY_TYPE (ev) & GST_QUERY_TYPE_DOWNSTREAM) +/** + * GST_QUERY_IS_SERIALIZED: + * @ev: the query to query + * + * Check if an query is serialized with the data stream. + */ +#define GST_QUERY_IS_SERIALIZED(ev) !!(GST_QUERY_TYPE (ev) & GST_QUERY_TYPE_SERIALIZED) + /** * GstQuery: @@ -142,25 +190,43 @@ struct _GstQuery GstQueryType type; }; -const gchar* gst_query_type_get_name (GstQueryType query); -GQuark gst_query_type_to_quark (GstQueryType query); +/** + * GstBufferingMode: + * @GST_BUFFERING_STREAM: a small amount of data is buffered + * @GST_BUFFERING_DOWNLOAD: the stream is being downloaded + * @GST_BUFFERING_TIMESHIFT: the stream is being downloaded in a ringbuffer + * @GST_BUFFERING_LIVE: the stream is a live stream + * + * The different types of buffering methods. + */ +typedef enum { + GST_BUFFERING_STREAM, + GST_BUFFERING_DOWNLOAD, + GST_BUFFERING_TIMESHIFT, + GST_BUFFERING_LIVE +} GstBufferingMode; -GType gst_query_get_type (void); +#include +#include +#include +#include +#include +#include +#include -/* register a new query */ -GstQueryType gst_query_type_register (const gchar *nick, - const gchar *description); -GstQueryType gst_query_type_get_by_nick (const gchar *nick); +GST_API +const gchar* gst_query_type_get_name (GstQueryType type); -/* check if a query is in an array of querys */ -gboolean gst_query_types_contains (const GstQueryType *types, - GstQueryType type); +GST_API +GQuark gst_query_type_to_quark (GstQueryType type); -/* query for query details */ +GST_API +GstQueryTypeFlags + gst_query_type_get_flags (GstQueryType type); -const GstQueryTypeDefinition* - gst_query_type_get_details (GstQueryType type); -GstIterator* gst_query_type_iterate_definitions (void) G_GNUC_MALLOC; + +GST_API +GType gst_query_get_type (void); /* refcounting */ /** @@ -171,10 +237,6 @@ GstIterator* gst_query_type_iterate_definitions (void) G_GNUC_MALLOC; * * Returns: @q */ -#ifdef _FOOL_GTK_DOC_ -G_INLINE_FUNC GstQuery * gst_query_ref (GstQuery * q); -#endif - static inline GstQuery * gst_query_ref (GstQuery * q) { @@ -188,16 +250,31 @@ gst_query_ref (GstQuery * q) * Decreases the refcount of the query. If the refcount reaches 0, the query * will be freed. */ -#ifdef _FOOL_GTK_DOC_ -G_INLINE_FUNC void gst_query_unref (GstQuery * q); -#endif - static inline void gst_query_unref (GstQuery * q) { gst_mini_object_unref (GST_MINI_OBJECT_CAST (q)); } +/** + * gst_clear_query: (skip) + * @query_ptr: a pointer to a #GstQuery reference + * + * Clears a reference to a #GstQuery. + * + * @query_ptr must not be %NULL. + * + * If the reference is %NULL then this function does nothing. Otherwise, the + * reference count of the query is decreased and the pointer is set to %NULL. + * + * Since: 1.16 + */ +static inline void +gst_clear_query (GstQuery ** query_ptr) +{ + gst_clear_mini_object ((GstMiniObject **) query_ptr); +} + /* copy query */ /** * gst_query_copy: @@ -209,10 +286,6 @@ gst_query_unref (GstQuery * q) * * Returns: (transfer full): a new copy of @q. */ -#ifdef _FOOL_GTK_DOC_ -G_INLINE_FUNC GstQuery * gst_query_copy (const GstQuery * q); -#endif - static inline GstQuery * gst_query_copy (const GstQuery * q) { @@ -237,8 +310,8 @@ gst_query_copy (const GstQuery * q) #define gst_query_make_writable(q) GST_QUERY_CAST (gst_mini_object_make_writable (GST_MINI_OBJECT_CAST (q))) /** * gst_query_replace: - * @old_query: (inout) (transfer full): pointer to a pointer to a #GstQuery - * to be replaced. + * @old_query: (inout) (transfer full) (nullable): pointer to a pointer to a + * #GstQuery to be replaced. * @new_query: (allow-none) (transfer none): pointer to a #GstQuery that will * replace the query pointed to by @old_query. * @@ -247,181 +320,388 @@ gst_query_copy (const GstQuery * q) * in some cases), and the reference counts are updated appropriately (the old * query is unreffed, the new one is reffed). * - * Either @new_query or the #GstQuery pointed to by @old_query may be NULL. + * Either @new_query or the #GstQuery pointed to by @old_query may be %NULL. * - * Returns: TRUE if @new_query was different from @old_query + * Returns: %TRUE if @new_query was different from @old_query */ -#ifdef _FOOL_GTK_DOC_ -G_INLINE_FUNC gboolean gst_query_replace (GstQuery **old_query, GstQuery *new_query); -#endif - static inline gboolean gst_query_replace (GstQuery **old_query, GstQuery *new_query) { return gst_mini_object_replace ((GstMiniObject **) old_query, (GstMiniObject *) new_query); } +/** + * gst_query_take: + * @old_query: (inout) (transfer full) (nullable): pointer to a + * pointer to a #GstQuery to be stolen. + * @new_query: (allow-none) (transfer full): pointer to a #GstQuery that will + * replace the query pointed to by @old_query. + * + * Modifies a pointer to a #GstQuery to point to a different #GstQuery. This + * function is similar to gst_query_replace() except that it takes ownership of + * @new_query. + * + * Either @new_query or the #GstQuery pointed to by @old_query may be %NULL. + * + * Returns: %TRUE if @new_query was different from @old_query + * + * Since: 1.16 + */ +static inline gboolean +gst_query_take (GstQuery **old_query, GstQuery *new_query) +{ + return gst_mini_object_take ((GstMiniObject **) old_query, + (GstMiniObject *) new_query); +} + /* application specific query */ + +GST_API GstQuery * gst_query_new_custom (GstQueryType type, GstStructure *structure) G_GNUC_MALLOC; + +GST_API const GstStructure * gst_query_get_structure (GstQuery *query); + +GST_API GstStructure * gst_query_writable_structure (GstQuery *query); /* position query */ + +GST_API GstQuery* gst_query_new_position (GstFormat format) G_GNUC_MALLOC; + +GST_API void gst_query_set_position (GstQuery *query, GstFormat format, gint64 cur); + +GST_API void gst_query_parse_position (GstQuery *query, GstFormat *format, gint64 *cur); /* duration query */ + +GST_API GstQuery* gst_query_new_duration (GstFormat format) G_GNUC_MALLOC; + +GST_API void gst_query_set_duration (GstQuery *query, GstFormat format, gint64 duration); + +GST_API void gst_query_parse_duration (GstQuery *query, GstFormat *format, gint64 *duration); /* latency query */ + +GST_API GstQuery* gst_query_new_latency (void) G_GNUC_MALLOC; + +GST_API void gst_query_set_latency (GstQuery *query, gboolean live, GstClockTime min_latency, GstClockTime max_latency); + +GST_API void gst_query_parse_latency (GstQuery *query, gboolean *live, GstClockTime *min_latency, GstClockTime *max_latency); /* convert query */ + +GST_API GstQuery* gst_query_new_convert (GstFormat src_format, gint64 value, GstFormat dest_format) G_GNUC_MALLOC; + +GST_API void gst_query_set_convert (GstQuery *query, GstFormat src_format, gint64 src_value, GstFormat dest_format, gint64 dest_value); + +GST_API void gst_query_parse_convert (GstQuery *query, GstFormat *src_format, gint64 *src_value, GstFormat *dest_format, gint64 *dest_value); /* segment query */ + +GST_API GstQuery* gst_query_new_segment (GstFormat format) G_GNUC_MALLOC; + +GST_API void gst_query_set_segment (GstQuery *query, gdouble rate, GstFormat format, gint64 start_value, gint64 stop_value); + +GST_API void gst_query_parse_segment (GstQuery *query, gdouble *rate, GstFormat *format, gint64 *start_value, gint64 *stop_value); /* seeking query */ + +GST_API GstQuery* gst_query_new_seeking (GstFormat format) G_GNUC_MALLOC; + +GST_API void gst_query_set_seeking (GstQuery *query, GstFormat format, gboolean seekable, gint64 segment_start, gint64 segment_end); + +GST_API void gst_query_parse_seeking (GstQuery *query, GstFormat *format, gboolean *seekable, gint64 *segment_start, gint64 *segment_end); /* formats query */ + +GST_API GstQuery* gst_query_new_formats (void) G_GNUC_MALLOC; + +GST_API void gst_query_set_formats (GstQuery *query, gint n_formats, ...); + +GST_API void gst_query_set_formatsv (GstQuery *query, gint n_formats, const GstFormat *formats); + +GST_API void gst_query_parse_n_formats (GstQuery *query, guint *n_formats); + +GST_API void gst_query_parse_nth_format (GstQuery *query, guint nth, GstFormat *format); /* buffering query */ -/** - * GstBufferingMode: - * @GST_BUFFERING_STREAM: a small amount of data is buffered - * @GST_BUFFERING_DOWNLOAD: the stream is being downloaded - * @GST_BUFFERING_TIMESHIFT: the stream is being downloaded in a ringbuffer - * @GST_BUFFERING_LIVE: the stream is a live stream - * - * The different types of buffering methods. - */ -typedef enum { - GST_BUFFERING_STREAM, - GST_BUFFERING_DOWNLOAD, - GST_BUFFERING_TIMESHIFT, - GST_BUFFERING_LIVE -} GstBufferingMode; +GST_API GstQuery* gst_query_new_buffering (GstFormat format) G_GNUC_MALLOC; + +GST_API void gst_query_set_buffering_percent (GstQuery *query, gboolean busy, gint percent); + +GST_API void gst_query_parse_buffering_percent (GstQuery *query, gboolean *busy, gint *percent); +GST_API void gst_query_set_buffering_stats (GstQuery *query, GstBufferingMode mode, gint avg_in, gint avg_out, gint64 buffering_left); + +GST_API void gst_query_parse_buffering_stats (GstQuery *query, GstBufferingMode *mode, gint *avg_in, gint *avg_out, gint64 *buffering_left); +GST_API void gst_query_set_buffering_range (GstQuery *query, GstFormat format, gint64 start, gint64 stop, gint64 estimated_total); + +GST_API void gst_query_parse_buffering_range (GstQuery *query, GstFormat *format, gint64 *start, gint64 *stop, gint64 *estimated_total); +GST_API gboolean gst_query_add_buffering_range (GstQuery *query, gint64 start, gint64 stop); + +GST_API guint gst_query_get_n_buffering_ranges (GstQuery *query); + +GST_API gboolean gst_query_parse_nth_buffering_range (GstQuery *query, guint index, gint64 *start, gint64 *stop); /* URI query */ -GstQuery * gst_query_new_uri (void) G_GNUC_MALLOC; -void gst_query_parse_uri (GstQuery *query, gchar **uri); -void gst_query_set_uri (GstQuery *query, const gchar *uri); + +GST_API +GstQuery * gst_query_new_uri (void) G_GNUC_MALLOC; + +GST_API +void gst_query_parse_uri (GstQuery *query, gchar **uri); + +GST_API +void gst_query_set_uri (GstQuery *query, const gchar *uri); + +GST_API +void gst_query_parse_uri_redirection (GstQuery *query, gchar **uri); + +GST_API +void gst_query_set_uri_redirection (GstQuery *query, const gchar *uri); + +GST_API +void gst_query_parse_uri_redirection_permanent (GstQuery *query, gboolean * permanent); + +GST_API +void gst_query_set_uri_redirection_permanent (GstQuery *query, gboolean permanent); /* allocation query */ -GstQuery * gst_query_new_allocation (GstCaps *caps, gboolean need_pool) G_GNUC_MALLOC; -void gst_query_parse_allocation (GstQuery *query, GstCaps **caps, gboolean *need_pool); -void gst_query_set_allocation_params (GstQuery *query, guint size, guint min_buffers, - guint max_buffers, guint prefix, guint alignment, - GstBufferPool *pool); -void gst_query_parse_allocation_params (GstQuery *query, guint *size, guint *min_buffers, - guint *max_buffers, guint *prefix, guint *alignment, - GstBufferPool **pool); +GST_API +GstQuery * gst_query_new_allocation (GstCaps *caps, gboolean need_pool) G_GNUC_MALLOC; + +GST_API +void gst_query_parse_allocation (GstQuery *query, GstCaps **caps, gboolean *need_pool); + +/* pools */ + +GST_API +void gst_query_add_allocation_pool (GstQuery *query, GstBufferPool *pool, + guint size, guint min_buffers, + guint max_buffers); + +GST_API +guint gst_query_get_n_allocation_pools (GstQuery *query); + +GST_API +void gst_query_parse_nth_allocation_pool (GstQuery *query, guint index, + GstBufferPool **pool, + guint *size, guint *min_buffers, + guint *max_buffers); + +GST_API +void gst_query_set_nth_allocation_pool (GstQuery *query, guint index, + GstBufferPool *pool, + guint size, guint min_buffers, + guint max_buffers); + +GST_API +void gst_query_remove_nth_allocation_pool (GstQuery *query, guint index); -void gst_query_add_allocation_meta (GstQuery *query, GType api); +/* allocators */ + +GST_API +void gst_query_add_allocation_param (GstQuery *query, GstAllocator *allocator, + const GstAllocationParams *params); + +GST_API +guint gst_query_get_n_allocation_params (GstQuery *query); + +GST_API +void gst_query_parse_nth_allocation_param (GstQuery *query, guint index, + GstAllocator **allocator, + GstAllocationParams *params); + +GST_API +void gst_query_set_nth_allocation_param (GstQuery *query, guint index, + GstAllocator *allocator, + const GstAllocationParams *params); + +GST_API +void gst_query_remove_nth_allocation_param (GstQuery *query, guint index); + +/* metadata */ + +GST_API +void gst_query_add_allocation_meta (GstQuery *query, GType api, const GstStructure *params); + +GST_API guint gst_query_get_n_allocation_metas (GstQuery *query); -GType gst_query_parse_nth_allocation_meta (GstQuery *query, guint index); + +GST_API +GType gst_query_parse_nth_allocation_meta (GstQuery *query, guint index, + const GstStructure **params); + +GST_API void gst_query_remove_nth_allocation_meta (GstQuery *query, guint index); -gboolean gst_query_has_allocation_meta (GstQuery *query, GType api); -void gst_query_add_allocation_memory (GstQuery *query, GstAllocator *allocator); -guint gst_query_get_n_allocation_memories (GstQuery *query); -GstAllocator * gst_query_parse_nth_allocation_memory (GstQuery *query, guint index); +GST_API +gboolean gst_query_find_allocation_meta (GstQuery *query, GType api, guint *index); + /* scheduling query */ /** * GstSchedulingFlags: * @GST_SCHEDULING_FLAG_SEEKABLE: if seeking is possible * @GST_SCHEDULING_FLAG_SEQUENTIAL: if sequential access is recommended + * @GST_SCHEDULING_FLAG_BANDWIDTH_LIMITED: if bandwidth is limited and buffering possible (since 1.2) * * The different scheduling flags. */ typedef enum { - GST_SCHEDULING_FLAG_SEEKABLE = (1 << 0), - GST_SCHEDULING_FLAG_SEQUENTIAL = (1 << 1) + GST_SCHEDULING_FLAG_SEEKABLE = (1 << 0), + GST_SCHEDULING_FLAG_SEQUENTIAL = (1 << 1), + GST_SCHEDULING_FLAG_BANDWIDTH_LIMITED = (1 << 2) } GstSchedulingFlags; +GST_API GstQuery * gst_query_new_scheduling (void) G_GNUC_MALLOC; +GST_API void gst_query_set_scheduling (GstQuery *query, GstSchedulingFlags flags, gint minsize, gint maxsize, gint align); + +GST_API void gst_query_parse_scheduling (GstQuery *query, GstSchedulingFlags *flags, gint *minsize, gint *maxsize, gint *align); +GST_API void gst_query_add_scheduling_mode (GstQuery *query, GstPadMode mode); + +GST_API guint gst_query_get_n_scheduling_modes (GstQuery *query); + +GST_API GstPadMode gst_query_parse_nth_scheduling_mode (GstQuery *query, guint index); + +GST_API gboolean gst_query_has_scheduling_mode (GstQuery *query, GstPadMode mode); +GST_API +gboolean gst_query_has_scheduling_mode_with_flags (GstQuery * query, GstPadMode mode, + GstSchedulingFlags flags); + /* accept-caps query */ + +GST_API GstQuery * gst_query_new_accept_caps (GstCaps *caps) G_GNUC_MALLOC; + +GST_API void gst_query_parse_accept_caps (GstQuery *query, GstCaps **caps); + +GST_API void gst_query_set_accept_caps_result (GstQuery *query, gboolean result); + +GST_API void gst_query_parse_accept_caps_result (GstQuery *query, gboolean *result); /* caps query */ + +GST_API GstQuery * gst_query_new_caps (GstCaps *filter) G_GNUC_MALLOC; + +GST_API void gst_query_parse_caps (GstQuery *query, GstCaps **filter); +GST_API void gst_query_set_caps_result (GstQuery *query, GstCaps *caps); + +GST_API void gst_query_parse_caps_result (GstQuery *query, GstCaps **caps); -void gst_query_intersect_caps_result (GstQuery *query, GstCaps *filter, - GstCapsIntersectMode mode); +/* drain query */ + +GST_API +GstQuery * gst_query_new_drain (void) G_GNUC_MALLOC; + +/* context query */ + +GST_API +GstQuery * gst_query_new_context (const gchar * context_type) G_GNUC_MALLOC; + +GST_API +gboolean gst_query_parse_context_type (GstQuery * query, const gchar ** context_type); + +GST_API +void gst_query_set_context (GstQuery *query, GstContext *context); + +GST_API +void gst_query_parse_context (GstQuery *query, GstContext **context); + +/* bitrate query */ + +GST_API +GstQuery * gst_query_new_bitrate (void) G_GNUC_MALLOC; + +GST_API +void gst_query_set_bitrate (GstQuery * query, guint nominal_bitrate); + +GST_API +void gst_query_parse_bitrate (GstQuery * query, guint * nominal_bitrate); + +#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC +G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstQuery, gst_query_unref) +#endif G_END_DECLS