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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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ffa2522fc0
This new class is a helper for fast/tricky copy of surfaces. First it tries to copy using the function vaCopy in libva 1.12. If it fails, or it's not available, a GstVaFilter is tried to be instantiated with the allocator's parameters, and if succeed, it's used for copying the source surface. This is required for dmabuf surfaces with drm modifier. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1023>
145 lines
3.8 KiB
C
145 lines
3.8 KiB
C
/* GStreamer
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* Copyright (C) 2021 Igalia, S.L.
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* Author: Víctor Jáquez <vjaquez@igalia.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "gstvasurfacecopy.h"
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#include "gstvaallocator.h"
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#include "gstvadisplay_priv.h"
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#include "gstvafilter.h"
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#include "vasurfaceimage.h"
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#define GST_CAT_DEFAULT gst_va_memory_debug
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GST_DEBUG_CATEGORY_EXTERN (gst_va_memory_debug);
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struct _GstVaSurfaceCopy
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{
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GstVaDisplay *display;
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GstVideoInfo info;
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gboolean has_copy;
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GstVaFilter *filter;
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};
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static gboolean
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_has_copy (GstVaDisplay * display)
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{
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#if VA_CHECK_VERSION (1, 12, 0)
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VADisplay dpy;
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VADisplayAttribute attr = {
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.type = VADisplayAttribCopy,
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.flags = VA_DISPLAY_ATTRIB_GETTABLE,
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};
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VAStatus status;
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dpy = gst_va_display_get_va_dpy (display);
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gst_va_display_lock (display);
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status = vaGetDisplayAttributes (dpy, &attr, 1);
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gst_va_display_unlock (display);
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if (status != VA_STATUS_SUCCESS) {
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GST_INFO ("vaGetDisplayAttribures: %s", vaErrorStr (status));
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return FALSE;
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}
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return TRUE;
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#else
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return FALSE;
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#endif
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}
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GstVaSurfaceCopy *
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gst_va_surface_copy_new (GstVaDisplay * display, GstVideoInfo * vinfo)
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{
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GstVaSurfaceCopy *self;
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g_return_val_if_fail (GST_IS_VA_DISPLAY (display), NULL);
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g_return_val_if_fail (vinfo != NULL, NULL);
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self = g_slice_new (GstVaSurfaceCopy);
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self->display = gst_object_ref (display);
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self->has_copy = _has_copy (display);
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self->info = *vinfo;
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self->filter = NULL;
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if (gst_va_display_has_vpp (display)) {
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self->filter = gst_va_filter_new (display);
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if (!(gst_va_filter_open (self->filter)
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&& gst_va_filter_set_video_info (self->filter, vinfo, vinfo)))
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gst_clear_object (&self->filter);
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}
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return self;
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}
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void
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gst_va_surface_copy_free (GstVaSurfaceCopy * self)
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{
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g_return_if_fail (self && GST_IS_VA_DISPLAY (self->display));
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gst_clear_object (&self->display);
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if (self->filter) {
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gst_va_filter_close (self->filter);
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gst_clear_object (&self->filter);
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}
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g_slice_free (GstVaSurfaceCopy, self);
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}
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static gboolean
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_vpp_copy_surface (GstVaFilter * filter, VASurfaceID dst, VASurfaceID src)
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{
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GstVaSample gst_src = {
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.surface = src,
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};
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GstVaSample gst_dst = {
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.surface = dst,
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};
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return gst_va_filter_process (filter, &gst_src, &gst_dst);
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}
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gboolean
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gst_va_surface_copy (GstVaSurfaceCopy * self, VASurfaceID dst, VASurfaceID src)
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{
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VAImage image = {.image_id = VA_INVALID_ID, };
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gboolean ret;
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g_return_val_if_fail (self && GST_IS_VA_DISPLAY (self->display), FALSE);
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if (self->has_copy && va_copy_surface (self->display, dst, src)) {
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GST_LOG ("GPU copy of %#x to %#x", src, dst);
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return TRUE;
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}
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if (self->filter && _vpp_copy_surface (self->filter, dst, src)) {
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GST_LOG ("VPP copy of %#x to %#x", src, dst);
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return TRUE;
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}
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if (!va_ensure_image (self->display, src, &self->info, &image, FALSE))
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return FALSE;
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if ((ret = va_put_image (self->display, dst, &image)))
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GST_LOG ("shallow copy of %#x to %#x", src, dst);
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va_unmap_buffer (self->display, image.buf);
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va_destroy_image (self->display, image.image_id);
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return ret;
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}
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