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videoaggregator: Create normal video pool as a fallback

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=746529
This commit is contained in:
Olivier Crête 2017-05-20 18:10:29 +02:00
parent ea26b9aa37
commit 892693865f
1 changed files with 44 additions and 1 deletions
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45
gst-libs/gst/video/gstvideoaggregator.c
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@ -1898,10 +1898,16 @@ gst_video_aggregator_release_pad (GstElement * element, GstPad * pad)
}
static gboolean
gst_video_aggregator_decide_allocation (GstAggregator * self, GstQuery * query)
gst_video_aggregator_decide_allocation (GstAggregator * agg, GstQuery * query)
{
GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (agg);
GstAllocationParams params = { 0, 15, 0, 0 };
guint i;
GstBufferPool *pool;
guint size, min, max;
gboolean update = FALSE;
GstStructure *config = NULL;
GstCaps *caps = NULL;
if (gst_query_get_n_allocation_params (query) == 0)
gst_query_add_allocation_param (query, NULL, &params);
@ -1914,6 +1920,43 @@ gst_video_aggregator_decide_allocation (GstAggregator * self, GstQuery * query)
gst_query_set_nth_allocation_param (query, i, allocator, &params);
}
if (gst_query_get_n_allocation_pools (query) > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
/* adjust size */
size = MAX (size, vagg->info.size);
update = TRUE;
} else {
pool = NULL;
size = vagg->info.size;
min = max = 0;
update = FALSE;
}
/* no downstream pool, make our own */
if (pool == NULL)
pool = gst_video_buffer_pool_new ();
config = gst_buffer_pool_get_config (pool);
gst_query_parse_allocation (query, &caps, NULL);
if (caps)
gst_buffer_pool_config_set_params (config, caps, size, min, max);
if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) {
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
gst_buffer_pool_set_config (pool, config);
if (update)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
if (pool)
gst_object_unref (pool);
return TRUE;
}