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vaapivideomemory: use an image pool to cache objects.

Browse source 
Use an image pool to hold VA images to be used for downloads/uploads
of contents for the associated surface.

This is an optmization for size. So, instead of creating as many VA
images as there are buffers (then VA surfaces) allocated, we only
maintain a minimal set of live VA images, thus preserving memory
resources.
This commit is contained in:
Gwenole Beauchesne 2014-07-24 06:46:22 +02:00
parent c3643b42a4
commit 3a762284a2
2 changed files with 40 additions and 9 deletions
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46
gst/vaapi/gstvaapivideomemory.c
View file

@ -21,6 +21,8 @@
*/
#include "gst/vaapi/sysdeps.h"
#include <gst/vaapi/gstvaapisurfacepool.h>
#include <gst/vaapi/gstvaapiimagepool.h>
#include "gstvaapivideomemory.h"
GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapivideomemory);
@ -35,6 +37,9 @@ GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapivideomemory);
/* --- GstVaapiVideoMemory --- */
/* ------------------------------------------------------------------------ */
static void
gst_vaapi_video_memory_reset_image(GstVaapiVideoMemory *mem);
static guchar *
get_image_data(GstVaapiImage *image)
{
@ -73,10 +78,10 @@ ensure_image(GstVaapiVideoMemory *mem)
}
if (!mem->image) {
GstVaapiDisplay * const display =
gst_vaapi_video_meta_get_display(mem->meta);
GstVaapiVideoAllocator * const allocator =
GST_VAAPI_VIDEO_ALLOCATOR_CAST(GST_MEMORY_CAST(mem)->allocator);
mem->image = new_image(display, mem->image_info);
mem->image = gst_vaapi_video_pool_get_object(allocator->image_pool);
if (!mem->image)
return FALSE;
}
@ -283,20 +288,33 @@ static void
gst_vaapi_video_memory_free(GstVaapiVideoMemory *mem)
{
mem->surface = NULL;
gst_vaapi_video_memory_reset_image(mem);
gst_vaapi_surface_proxy_replace(&mem->proxy, NULL);
gst_vaapi_object_replace(&mem->image, NULL);
gst_vaapi_video_meta_unref(mem->meta);
gst_object_unref(GST_MEMORY_CAST(mem)->allocator);
g_slice_free(GstVaapiVideoMemory, mem);
}
void
gst_vaapi_video_memory_reset_image(GstVaapiVideoMemory *mem)
{
GstVaapiVideoAllocator * const allocator =
GST_VAAPI_VIDEO_ALLOCATOR_CAST(GST_MEMORY_CAST(mem)->allocator);
if (mem->use_direct_rendering)
gst_vaapi_object_replace(&mem->image, NULL);
else if (mem->image) {
gst_vaapi_video_pool_put_object(allocator->image_pool, mem->image);
mem->image = NULL;
}
}
void
gst_vaapi_video_memory_reset_surface(GstVaapiVideoMemory *mem)
{
mem->surface = NULL;
gst_vaapi_video_memory_reset_image(mem);
gst_vaapi_surface_proxy_replace(&mem->proxy, NULL);
if (mem->use_direct_rendering)
gst_vaapi_object_replace(&mem->image, NULL);
gst_vaapi_video_meta_set_surface_proxy(mem->meta, NULL);
}
@ -474,6 +492,7 @@ gst_vaapi_video_allocator_finalize(GObject *object)
GST_VAAPI_VIDEO_ALLOCATOR_CAST(object);
gst_vaapi_video_pool_replace(&allocator->surface_pool, NULL);
gst_vaapi_video_pool_replace(&allocator->image_pool, NULL);
G_OBJECT_CLASS(gst_vaapi_video_allocator_parent_class)->finalize(object);
}
@ -595,7 +614,7 @@ gst_vaapi_video_allocator_new(GstVaapiDisplay *display, const GstVideoInfo *vip)
allocator->surface_pool = gst_vaapi_surface_pool_new(display,
&allocator->surface_info);
if (!allocator->surface_pool)
goto error_create_pool;
goto error_create_surface_pool;
allocator->image_info = *vip;
if (GST_VIDEO_INFO_FORMAT(vip) == GST_VIDEO_FORMAT_ENCODED)
@ -616,13 +635,24 @@ gst_vaapi_video_allocator_new(GstVaapiDisplay *display, const GstVideoInfo *vip)
} while (0);
gst_vaapi_object_unref(image);
}
allocator->image_pool = gst_vaapi_image_pool_new(display,
&allocator->image_info);
if (!allocator->image_pool)
goto error_create_image_pool;
return GST_ALLOCATOR_CAST(allocator);
/* ERRORS */
error_create_pool:
error_create_surface_pool:
{
GST_ERROR("failed to allocate VA surface pool");
gst_object_unref(allocator);
return NULL;
}
error_create_image_pool:
{
GST_ERROR("failed to allocate VA image pool");
gst_object_unref(allocator);
return NULL;
}
}

3
gst/vaapi/gstvaapivideomemory.h
View file

@ -26,7 +26,7 @@
#include <gst/gstallocator.h>
#include <gst/video/video-info.h>
#include <gst/vaapi/gstvaapidisplay.h>
#include <gst/vaapi/gstvaapisurfacepool.h>
#include <gst/vaapi/gstvaapivideopool.h>
#include "gstvaapivideometa.h"
G_BEGIN_DECLS
@ -137,6 +137,7 @@ struct _GstVaapiVideoAllocator {
GstVideoInfo surface_info;
GstVaapiVideoPool *surface_pool;
GstVideoInfo image_info;
GstVaapiVideoPool *image_pool;
gboolean has_direct_rendering;
};