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videofilter: Use a GstVideoBufferPool if none was provided

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Sebastian Dröge 2012-04-26 18:12:39 +02:00
parent cb04d8e003
commit 52dfa13522
1 changed files with 32 additions and 10 deletions
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38
gst-libs/gst/video/gstvideofilter.c
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@ -116,22 +116,44 @@ config_failed:
static gboolean static gboolean
gst_video_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query) gst_video_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
{ {
GstBufferPool *pool = NULL;
GstStructure *config;
guint min, max, size;
gboolean update_pool;
if (gst_query_get_n_allocation_pools (query) > 0) { if (gst_query_get_n_allocation_pools (query) > 0) {
GstBufferPool *pool = NULL; gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL); if (!pool)
pool = gst_video_buffer_pool_new ();
if (pool) { update_pool = TRUE;
GstStructure *config; } else {
GstCaps *outcaps;
GstVideoInfo vinfo;
gst_query_parse_allocation (query, &outcaps, NULL);
gst_video_info_init (&vinfo);
gst_video_info_from_caps (&vinfo, outcaps);
size = vinfo.size;
min = max = 0;
update_pool = FALSE;
}
if (!pool)
pool = gst_video_buffer_pool_new ();
config = gst_buffer_pool_get_config (pool); config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_add_option (config, gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config (pool, config); gst_buffer_pool_set_config (pool, config);
if (update_pool)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool); gst_object_unref (pool);
}
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans, return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
query); query);
} }