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plugins: store the first downstream allocator if available

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The allocator will be required if we need to allocate a buffer
to store the frame with the expected strides.

https://bugzilla.gnome.org/show_bug.cgi?id=785054
This commit is contained in:
Víctor Manuel Jáquez Leal 2018-02-15 19:28:33 +01:00
parent bcc480b70e
commit f0fd2aeb04
2 changed files with 18 additions and 1 deletions
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17
gst/vaapi/gstvaapipluginbase.c
View file

@ -327,6 +327,7 @@ gst_vaapi_plugin_base_close (GstVaapiPluginBase * plugin)
g_clear_object (&plugin->sinkpad_allocator);
g_clear_object (&plugin->srcpad_allocator);
g_clear_object (&plugin->other_srcpad_allocator);
gst_caps_replace (&plugin->srcpad_caps, NULL);
gst_video_info_init (&plugin->srcpad_info);
@ -929,10 +930,24 @@ gst_vaapi_plugin_base_decide_allocation (GstVaapiPluginBase * plugin,
num_allocators = gst_query_get_n_allocation_params (query);
for (i = 0; i < num_allocators; i++) {
GstAllocator *allocator = NULL;
GstAllocationParams params;
gst_query_parse_nth_allocation_param (query, i, &allocator, NULL);
gst_query_parse_nth_allocation_param (query, i, &allocator, &params);
if (!allocator)
continue;
/* Let's keep the the first allocator if it is not VA-API. It
* might be used if it is required to copy the output frame to a
* new buffer */
if (i == 0
&& g_strcmp0 (allocator->mem_type, GST_VAAPI_VIDEO_MEMORY_NAME) != 0) {
if (plugin->other_srcpad_allocator)
gst_object_unref (plugin->other_srcpad_allocator);
plugin->other_srcpad_allocator = allocator;
plugin->other_allocator_params = params;
continue;
}
if (g_strcmp0 (allocator->mem_type, GST_VAAPI_VIDEO_MEMORY_NAME) == 0) {
GST_DEBUG_OBJECT (plugin, "found vaapi allocator in query %"
GST_PTR_FORMAT, allocator);

2
gst/vaapi/gstvaapipluginbase.h
View file

@ -147,6 +147,8 @@ struct _GstVaapiPluginBase
gboolean srcpad_can_dmabuf;
gboolean enable_direct_rendering;
GstAllocator *other_srcpad_allocator;
GstAllocationParams other_allocator_params;
};
struct _GstVaapiPluginBaseClass