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query: improve allocation parameters query

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Use the same parameters as those used for the bufferpool. Make sure we can pass
a minimum and maximum amount of buffers needed.
This commit is contained in:
Wim Taymans 2011-05-02 11:09:52 +02:00
parent baebf253ad
commit 9d80fbac23
2 changed files with 20 additions and 12 deletions
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22
gst/gstquery.c
View file

@ -1519,15 +1519,18 @@ gst_query_parse_allocation (GstQuery * query, GstCaps ** caps,
* Set the allocation parameters in @query. * Set the allocation parameters in @query.
*/ */
void void
gst_query_set_allocation_params (GstQuery * query, guint alignment, gst_query_set_allocation_params (GstQuery * query, guint size,
guint prefix, guint size, GstBufferPool * pool) guint min_buffers, guint max_buffers, guint prefix,
guint alignment, GstBufferPool * pool)
{ {
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_ALLOCATION); g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_ALLOCATION);
gst_structure_id_set (query->structure, gst_structure_id_set (query->structure,
GST_QUARK (ALIGN), G_TYPE_UINT, alignment,
GST_QUARK (PREFIX), G_TYPE_UINT, prefix,
GST_QUARK (SIZE), G_TYPE_UINT, size, GST_QUARK (SIZE), G_TYPE_UINT, size,
GST_QUARK (MIN_BUFFERS), G_TYPE_UINT, min_buffers,
GST_QUARK (MAX_BUFFERS), G_TYPE_UINT, max_buffers,
GST_QUARK (PREFIX), G_TYPE_UINT, prefix,
GST_QUARK (ALIGN), G_TYPE_UINT, alignment,
GST_QUARK (POOL), GST_TYPE_BUFFER_POOL, pool, NULL); GST_QUARK (POOL), GST_TYPE_BUFFER_POOL, pool, NULL);
} }
@ -1542,15 +1545,18 @@ gst_query_set_allocation_params (GstQuery * query, guint alignment,
* Get the allocation parameters in @query. * Get the allocation parameters in @query.
*/ */
void void
gst_query_parse_allocation_params (GstQuery * query, guint * alignment, gst_query_parse_allocation_params (GstQuery * query, guint * size,
guint * prefix, guint * size, GstBufferPool ** pool) guint * min_buffers, guint * max_buffers, guint * prefix,
guint * alignment, GstBufferPool ** pool)
{ {
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_ALLOCATION); g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_ALLOCATION);
gst_structure_id_get (query->structure, gst_structure_id_get (query->structure,
GST_QUARK (ALIGN), G_TYPE_UINT, alignment,
GST_QUARK (PREFIX), G_TYPE_UINT, prefix,
GST_QUARK (SIZE), G_TYPE_UINT, size, GST_QUARK (SIZE), G_TYPE_UINT, size,
GST_QUARK (MIN_BUFFERS), G_TYPE_UINT, min_buffers,
GST_QUARK (MAX_BUFFERS), G_TYPE_UINT, max_buffers,
GST_QUARK (PREFIX), G_TYPE_UINT, prefix,
GST_QUARK (ALIGN), G_TYPE_UINT, alignment,
GST_QUARK (POOL), GST_TYPE_BUFFER_POOL, pool, NULL); GST_QUARK (POOL), GST_TYPE_BUFFER_POOL, pool, NULL);
} }

10
gst/gstquery.h
View file

@ -332,10 +332,12 @@ void gst_query_set_uri (GstQuery *query, const gchar
GstQuery * gst_query_new_allocation (GstCaps *caps, gboolean need_pool); GstQuery * gst_query_new_allocation (GstCaps *caps, gboolean need_pool);
void gst_query_parse_allocation (GstQuery *query, GstCaps **caps, gboolean *need_pool); void gst_query_parse_allocation (GstQuery *query, GstCaps **caps, gboolean *need_pool);
void gst_query_set_allocation_params (GstQuery *query, guint alignment, guint prefix, void gst_query_set_allocation_params (GstQuery *query, guint size, guint min_buffers,
guint size, GstBufferPool *pool); guint max_buffers, guint prefix, guint alignment,
void gst_query_parse_allocation_params (GstQuery *query, guint *alignment, guint *prefix, GstBufferPool *pool);
guint *size, GstBufferPool **pool); void gst_query_parse_allocation_params (GstQuery *query, guint *size, guint *min_buffers,
guint *max_buffers, guint *prefix, guint *alignment,
GstBufferPool **pool);
void gst_query_add_allocation_meta (GstQuery *query, const gchar *api); void gst_query_add_allocation_meta (GstQuery *query, const gchar *api);
guint gst_query_get_n_allocation_meta (GstQuery *query); guint gst_query_get_n_allocation_meta (GstQuery *query);