gstreamer/subprojects/gst-plugins-bad/sys/va/gstvasurfacecopy.c
He Junyan 24c3e0fcfa va: Delete the display lock/unlock when we call VA-API.
According to the VA-API's description, they are MT-safe, we do not
need to care about that in our middleware layer. The lock/unlock
operations have overhead and make the performance lower.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1333>
2022-02-15 10:02:08 +00:00

155 lines
3.9 KiB
C

/* GStreamer
* Copyright (C) 2021 Igalia, S.L.
* Author: Víctor Jáquez <vjaquez@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "gstvasurfacecopy.h"
#include "gstvaallocator.h"
#include "gstvadisplay_priv.h"
#include "gstvafilter.h"
#include "vasurfaceimage.h"
#define GST_CAT_DEFAULT gst_va_memory_debug
GST_DEBUG_CATEGORY_EXTERN (gst_va_memory_debug);
struct _GstVaSurfaceCopy
{
GstVaDisplay *display;
GstVideoInfo info;
gboolean has_copy;
GRecMutex lock;
GstVaFilter *filter;
};
static gboolean
_has_copy (GstVaDisplay * display)
{
#if VA_CHECK_VERSION (1, 12, 0)
VADisplay dpy;
VADisplayAttribute attr = {
.type = VADisplayAttribCopy,
.flags = VA_DISPLAY_ATTRIB_GETTABLE,
};
VAStatus status;
dpy = gst_va_display_get_va_dpy (display);
status = vaGetDisplayAttributes (dpy, &attr, 1);
if (status != VA_STATUS_SUCCESS) {
GST_INFO ("vaGetDisplayAttribures: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
#else
return FALSE;
#endif
}
GstVaSurfaceCopy *
gst_va_surface_copy_new (GstVaDisplay * display, GstVideoInfo * vinfo)
{
GstVaSurfaceCopy *self;
g_return_val_if_fail (GST_IS_VA_DISPLAY (display), NULL);
g_return_val_if_fail (vinfo != NULL, NULL);
self = g_slice_new (GstVaSurfaceCopy);
self->display = gst_object_ref (display);
self->has_copy = _has_copy (display);
self->info = *vinfo;
self->filter = NULL;
g_rec_mutex_init (&self->lock);
if (gst_va_display_has_vpp (display)) {
self->filter = gst_va_filter_new (display);
if (!(gst_va_filter_open (self->filter)
&& gst_va_filter_set_video_info (self->filter, vinfo, vinfo)))
gst_clear_object (&self->filter);
}
return self;
}
void
gst_va_surface_copy_free (GstVaSurfaceCopy * self)
{
g_return_if_fail (self && GST_IS_VA_DISPLAY (self->display));
gst_clear_object (&self->display);
if (self->filter) {
gst_va_filter_close (self->filter);
gst_clear_object (&self->filter);
}
g_rec_mutex_clear (&self->lock);
g_slice_free (GstVaSurfaceCopy, self);
}
static gboolean
_vpp_copy_surface (GstVaSurfaceCopy * self, VASurfaceID dst, VASurfaceID src)
{
gboolean ret;
GstVaSample gst_src = {
.surface = src,
};
GstVaSample gst_dst = {
.surface = dst,
};
g_rec_mutex_lock (&self->lock);
ret = gst_va_filter_process (self->filter, &gst_src, &gst_dst);
g_rec_mutex_unlock (&self->lock);
return ret;
}
gboolean
gst_va_surface_copy (GstVaSurfaceCopy * self, VASurfaceID dst, VASurfaceID src)
{
VAImage image = {.image_id = VA_INVALID_ID, };
gboolean ret;
g_return_val_if_fail (self && GST_IS_VA_DISPLAY (self->display), FALSE);
if (self->has_copy && va_copy_surface (self->display, dst, src)) {
GST_LOG ("GPU copy of %#x to %#x", src, dst);
return TRUE;
}
if (self->filter && _vpp_copy_surface (self, dst, src)) {
GST_LOG ("VPP copy of %#x to %#x", src, dst);
return TRUE;
}
if (!va_ensure_image (self->display, src, &self->info, &image, FALSE))
return FALSE;
if ((ret = va_put_image (self->display, dst, &image)))
GST_LOG ("shallow copy of %#x to %#x", src, dst);
va_unmap_buffer (self->display, image.buf);
va_destroy_image (self->display, image.image_id);
return ret;
}