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va: allocator: create surfaces with VASurfaceAttribExternalBuffers

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Add a new parameter to _create_surfaces(): a pointer to
VASurfaceAttribExternalBuffers.

If it's defined the memory type is changed to DRM_PRIME, also a new item is
added to the VASurfaceAttrib array with
VASurfaceAttribExternalBufferDescriptor.

Also, the VASurfaceAttrib for pixel format is not mandatory anymore. If fourcc
parameter is 0, is not added in the array, relying on the chroma. This is
useful when creating surfaces for uploading or downloading images.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1529>
This commit is contained in:
Víctor Manuel Jáquez Leal 2020-08-19 16:45:49 +02:00
parent f306b1e0fe
commit 482a7d7d7e
1 changed files with 33 additions and 14 deletions
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47
sys/va/gstvaallocator.c
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@ -95,39 +95,58 @@ _destroy_surfaces (GstVaDisplay * display, VASurfaceID * surfaces,
static gboolean
_create_surfaces (GstVaDisplay * display, guint rt_format, guint fourcc,
guint width, guint height, gint usage_hint, VASurfaceID * surfaces,
guint width, guint height, gint usage_hint,
VASurfaceAttribExternalBuffers * ext_buf, VASurfaceID * surfaces,
guint num_surfaces)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
/* *INDENT-OFF* */
VASurfaceAttrib attrs[] = {
VASurfaceAttrib attrs[5] = {
{
.type = VASurfaceAttribUsageHint,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypeInteger,
.value.value.i = usage_hint,
},
{
.type = VASurfaceAttribPixelFormat,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypeInteger,
.value.value.i = fourcc,
},
{
.type = VASurfaceAttribMemoryType,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypeInteger,
.value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_VA,
.value.value.i = ext_buf ? VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME
: VA_SURFACE_ATTRIB_MEM_TYPE_VA,
},
};
/* *INDENT-ON* */
VAStatus status;
guint num_attrs = 2;
g_return_val_if_fail (num_surfaces > 0, FALSE);
if (fourcc > 0) {
/* *INDENT-OFF* */
attrs[num_attrs++] = (VASurfaceAttrib) {
.type = VASurfaceAttribPixelFormat,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypeInteger,
.value.value.i = fourcc,
};
/* *INDENT-ON* */
}
if (ext_buf) {
/* *INDENT-OFF* */
attrs[num_attrs++] = (VASurfaceAttrib) {
.type = VASurfaceAttribExternalBufferDescriptor,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypePointer,
.value.value.p = ext_buf,
};
/* *INDENT-ON* */
}
gst_va_display_lock (display);
status = vaCreateSurfaces (dpy, rt_format, width, height, surfaces,
num_surfaces, attrs, G_N_ELEMENTS (attrs));
num_surfaces, attrs, num_attrs);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_ERROR ("vaCreateSurfaces: %s", vaErrorStr (status));
@ -466,8 +485,8 @@ gst_va_dmabuf_setup_buffer (GstAllocator * allocator, GstBuffer * buffer,
if (!_create_surfaces (self->display, rt_format, fourcc,
GST_VIDEO_INFO_WIDTH (&params->info),
GST_VIDEO_INFO_HEIGHT (&params->info), params->usage_hint, &surface,
1))
GST_VIDEO_INFO_HEIGHT (&params->info), params->usage_hint, NULL,
&surface, 1))
return FALSE;
/* Each layer will contain exactly one plane. For example, an NV12
@ -894,8 +913,8 @@ gst_va_allocator_alloc (GstAllocator * allocator,
if (!_create_surfaces (self->display, rt_format, fourcc,
GST_VIDEO_INFO_WIDTH (&params->info),
GST_VIDEO_INFO_HEIGHT (&params->info), params->usage_hint, &surface,
1))
GST_VIDEO_INFO_HEIGHT (&params->info), params->usage_hint, NULL,
&surface, 1))
return NULL;
image.image_id = VA_INVALID_ID;