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When drm does not find any format, the allowed_caps is empty one and need to be unref by the caller. Fix #1268
2095 lines
54 KiB
C
2095 lines
54 KiB
C
/* GStreamer
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*
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* Copyright (C) 2016 Igalia
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*
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* Authors:
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* Víctor Manuel Jáquez Leal <vjaquez@igalia.com>
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* Javier Martin <javiermartin@by.com.es>
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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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*/
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/**
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* SECTION:element-kmssink
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* @title: kmssink
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* @short_description: A KMS/DRM based video sink
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*
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* kmssink is a simple video sink that renders video frames directly
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* in a plane of a DRM device.
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*
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* In advance usage, the behaviour of kmssink can be change using the
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* supported properties. Note that plane and connectors IDs and properties can
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* be enumerated using the modetest command line tool.
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*
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* ## Example launch line
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* |[
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* gst-launch-1.0 videotestsrc ! kmssink
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* gst-launch-1.0 videotestsrc ! kmssink plane-properties=s,rotation=4
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* ]|
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/video/video.h>
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#include <gst/video/videooverlay.h>
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#include <gst/allocators/gstdmabuf.h>
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#include <drm.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <drm_fourcc.h>
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#include <string.h>
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#include "gstkmssink.h"
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#include "gstkmsutils.h"
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#include "gstkmsbufferpool.h"
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#include "gstkmsallocator.h"
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#define GST_PLUGIN_NAME "kmssink"
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#define GST_PLUGIN_DESC "Video sink using the Linux kernel mode setting API"
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GST_DEBUG_CATEGORY_STATIC (gst_kms_sink_debug);
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GST_DEBUG_CATEGORY_STATIC (CAT_PERFORMANCE);
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#define GST_CAT_DEFAULT gst_kms_sink_debug
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static GstFlowReturn gst_kms_sink_show_frame (GstVideoSink * vsink,
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GstBuffer * buf);
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static void gst_kms_sink_video_overlay_init (GstVideoOverlayInterface * iface);
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static void gst_kms_sink_drain (GstKMSSink * self);
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#define parent_class gst_kms_sink_parent_class
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G_DEFINE_TYPE_WITH_CODE (GstKMSSink, gst_kms_sink, GST_TYPE_VIDEO_SINK,
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GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, GST_PLUGIN_NAME, 0,
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GST_PLUGIN_DESC);
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GST_DEBUG_CATEGORY_GET (CAT_PERFORMANCE, "GST_PERFORMANCE");
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G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY,
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gst_kms_sink_video_overlay_init));
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enum
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{
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PROP_DRIVER_NAME = 1,
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PROP_BUS_ID,
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PROP_CONNECTOR_ID,
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PROP_PLANE_ID,
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PROP_FORCE_MODESETTING,
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PROP_RESTORE_CRTC,
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PROP_CAN_SCALE,
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PROP_DISPLAY_WIDTH,
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PROP_DISPLAY_HEIGHT,
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PROP_CONNECTOR_PROPS,
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PROP_PLANE_PROPS,
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PROP_N,
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};
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static GParamSpec *g_properties[PROP_N] = { NULL, };
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static void
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gst_kms_sink_set_render_rectangle (GstVideoOverlay * overlay,
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gint x, gint y, gint width, gint height)
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{
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GstKMSSink *self = GST_KMS_SINK (overlay);
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GST_DEBUG_OBJECT (self, "Setting render rectangle to (%d,%d) %dx%d", x, y,
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width, height);
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GST_OBJECT_LOCK (self);
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if (width == -1 && height == -1) {
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x = 0;
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y = 0;
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width = self->hdisplay;
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height = self->vdisplay;
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}
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if (width <= 0 || height <= 0)
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goto done;
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self->pending_rect.x = x;
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self->pending_rect.y = y;
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self->pending_rect.w = width;
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self->pending_rect.h = height;
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if (self->can_scale ||
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(self->render_rect.w == width && self->render_rect.h == height)) {
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self->render_rect = self->pending_rect;
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} else {
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self->reconfigure = TRUE;
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GST_DEBUG_OBJECT (self, "Waiting for new caps to apply render rectangle");
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}
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done:
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GST_OBJECT_UNLOCK (self);
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}
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static void
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gst_kms_sink_expose (GstVideoOverlay * overlay)
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{
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GstKMSSink *self = GST_KMS_SINK (overlay);
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GST_DEBUG_OBJECT (overlay, "Expose called by application");
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if (!self->can_scale) {
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GST_OBJECT_LOCK (self);
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if (self->reconfigure) {
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GST_OBJECT_UNLOCK (self);
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GST_DEBUG_OBJECT (overlay, "Sending a reconfigure event");
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gst_pad_push_event (GST_BASE_SINK_PAD (self),
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gst_event_new_reconfigure ());
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} else {
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GST_DEBUG_OBJECT (overlay, "Applying new render rectangle");
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/* size of the rectangle does not change, only the (x,y) position changes */
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self->render_rect = self->pending_rect;
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GST_OBJECT_UNLOCK (self);
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}
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}
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gst_kms_sink_show_frame (GST_VIDEO_SINK (self), NULL);
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}
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static void
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gst_kms_sink_video_overlay_init (GstVideoOverlayInterface * iface)
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{
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iface->expose = gst_kms_sink_expose;
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iface->set_render_rectangle = gst_kms_sink_set_render_rectangle;
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}
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static int
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kms_open (gchar ** driver)
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{
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static const char *drivers[] = { "i915", "radeon", "nouveau", "vmwgfx",
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"exynos", "amdgpu", "imx-drm", "rockchip", "atmel-hlcdc", "msm",
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"xlnx", "vc4", "meson", "sun4i-drm", "mxsfb-drm",
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"xilinx_drm", /* DEPRECATED. Replaced by xlnx */
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};
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int i, fd = -1;
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for (i = 0; i < G_N_ELEMENTS (drivers); i++) {
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fd = drmOpen (drivers[i], NULL);
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if (fd >= 0) {
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if (driver)
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*driver = g_strdup (drivers[i]);
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break;
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}
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}
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return fd;
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}
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static drmModePlane *
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find_plane_for_crtc (int fd, drmModeRes * res, drmModePlaneRes * pres,
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int crtc_id)
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{
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drmModePlane *plane;
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int i, pipe;
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plane = NULL;
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pipe = -1;
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for (i = 0; i < res->count_crtcs; i++) {
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if (crtc_id == res->crtcs[i]) {
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pipe = i;
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break;
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}
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}
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if (pipe == -1)
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return NULL;
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for (i = 0; i < pres->count_planes; i++) {
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plane = drmModeGetPlane (fd, pres->planes[i]);
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if (plane->possible_crtcs & (1 << pipe))
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return plane;
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drmModeFreePlane (plane);
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}
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return NULL;
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}
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static drmModeCrtc *
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find_crtc_for_connector (int fd, drmModeRes * res, drmModeConnector * conn,
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guint * pipe)
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{
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int i;
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int crtc_id;
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drmModeEncoder *enc;
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drmModeCrtc *crtc;
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guint32 crtcs_for_connector = 0;
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crtc_id = -1;
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for (i = 0; i < res->count_encoders; i++) {
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enc = drmModeGetEncoder (fd, res->encoders[i]);
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if (enc) {
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if (enc->encoder_id == conn->encoder_id) {
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crtc_id = enc->crtc_id;
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drmModeFreeEncoder (enc);
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break;
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}
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drmModeFreeEncoder (enc);
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}
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}
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/* If no active crtc was found, pick the first possible crtc */
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if (crtc_id == -1) {
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for (i = 0; i < conn->count_encoders; i++) {
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enc = drmModeGetEncoder (fd, conn->encoders[i]);
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crtcs_for_connector |= enc->possible_crtcs;
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drmModeFreeEncoder (enc);
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}
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if (crtcs_for_connector != 0)
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crtc_id = res->crtcs[ffs (crtcs_for_connector) - 1];
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}
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if (crtc_id == -1)
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return NULL;
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for (i = 0; i < res->count_crtcs; i++) {
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crtc = drmModeGetCrtc (fd, res->crtcs[i]);
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if (crtc) {
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if (crtc_id == crtc->crtc_id) {
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if (pipe)
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*pipe = i;
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return crtc;
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}
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drmModeFreeCrtc (crtc);
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}
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}
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return NULL;
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}
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static gboolean
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connector_is_used (int fd, drmModeRes * res, drmModeConnector * conn)
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{
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gboolean result;
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drmModeCrtc *crtc;
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result = FALSE;
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crtc = find_crtc_for_connector (fd, res, conn, NULL);
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if (crtc) {
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result = crtc->buffer_id != 0;
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drmModeFreeCrtc (crtc);
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}
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return result;
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}
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static drmModeConnector *
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find_used_connector_by_type (int fd, drmModeRes * res, int type)
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{
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int i;
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drmModeConnector *conn;
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conn = NULL;
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for (i = 0; i < res->count_connectors; i++) {
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conn = drmModeGetConnector (fd, res->connectors[i]);
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if (conn) {
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if ((conn->connector_type == type) && connector_is_used (fd, res, conn))
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return conn;
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drmModeFreeConnector (conn);
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}
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}
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return NULL;
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}
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static drmModeConnector *
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find_first_used_connector (int fd, drmModeRes * res)
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{
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int i;
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drmModeConnector *conn;
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conn = NULL;
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for (i = 0; i < res->count_connectors; i++) {
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conn = drmModeGetConnector (fd, res->connectors[i]);
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if (conn) {
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if (connector_is_used (fd, res, conn))
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return conn;
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drmModeFreeConnector (conn);
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}
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}
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return NULL;
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}
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static drmModeConnector *
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find_main_monitor (int fd, drmModeRes * res)
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{
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/* Find the LVDS and eDP connectors: those are the main screens. */
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static const int priority[] = { DRM_MODE_CONNECTOR_LVDS,
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DRM_MODE_CONNECTOR_eDP
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};
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int i;
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drmModeConnector *conn;
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conn = NULL;
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for (i = 0; !conn && i < G_N_ELEMENTS (priority); i++)
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conn = find_used_connector_by_type (fd, res, priority[i]);
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/* if we didn't find a connector, grab the first one in use */
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if (!conn)
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conn = find_first_used_connector (fd, res);
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/* if no connector is used, grab the first one */
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if (!conn)
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conn = drmModeGetConnector (fd, res->connectors[0]);
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return conn;
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}
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static void
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log_drm_version (GstKMSSink * self)
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{
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#ifndef GST_DISABLE_GST_DEBUG
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drmVersion *v;
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v = drmGetVersion (self->fd);
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if (v) {
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GST_INFO_OBJECT (self, "DRM v%d.%d.%d [%s — %s — %s]", v->version_major,
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v->version_minor, v->version_patchlevel, GST_STR_NULL (v->name),
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GST_STR_NULL (v->desc), GST_STR_NULL (v->date));
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drmFreeVersion (v);
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} else {
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GST_WARNING_OBJECT (self, "could not get driver information: %s",
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GST_STR_NULL (self->devname));
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}
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#endif
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return;
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}
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static gboolean
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get_drm_caps (GstKMSSink * self)
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{
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gint ret;
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guint64 has_dumb_buffer;
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guint64 has_prime;
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guint64 has_async_page_flip;
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has_dumb_buffer = 0;
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ret = drmGetCap (self->fd, DRM_CAP_DUMB_BUFFER, &has_dumb_buffer);
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if (ret)
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GST_WARNING_OBJECT (self, "could not get dumb buffer capability");
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if (has_dumb_buffer == 0) {
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GST_ERROR_OBJECT (self, "driver cannot handle dumb buffers");
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return FALSE;
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}
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has_prime = 0;
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ret = drmGetCap (self->fd, DRM_CAP_PRIME, &has_prime);
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if (ret)
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GST_WARNING_OBJECT (self, "could not get prime capability");
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else {
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self->has_prime_import = (gboolean) (has_prime & DRM_PRIME_CAP_IMPORT);
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self->has_prime_export = (gboolean) (has_prime & DRM_PRIME_CAP_EXPORT);
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}
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has_async_page_flip = 0;
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ret = drmGetCap (self->fd, DRM_CAP_ASYNC_PAGE_FLIP, &has_async_page_flip);
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if (ret)
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GST_WARNING_OBJECT (self, "could not get async page flip capability");
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else
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self->has_async_page_flip = (gboolean) has_async_page_flip;
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GST_INFO_OBJECT (self,
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"prime import (%s) / prime export (%s) / async page flip (%s)",
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self->has_prime_import ? "✓" : "✗",
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self->has_prime_export ? "✓" : "✗",
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self->has_async_page_flip ? "✓" : "✗");
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return TRUE;
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}
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|
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static void
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ensure_kms_allocator (GstKMSSink * self)
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{
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if (self->allocator)
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return;
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self->allocator = gst_kms_allocator_new (self->fd);
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}
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|
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static gboolean
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configure_mode_setting (GstKMSSink * self, GstVideoInfo * vinfo)
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{
|
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gboolean ret;
|
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drmModeConnector *conn;
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int err;
|
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gint i;
|
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drmModeModeInfo *mode;
|
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guint32 fb_id;
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GstKMSMemory *kmsmem;
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|
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ret = FALSE;
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conn = NULL;
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mode = NULL;
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kmsmem = NULL;
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|
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if (self->conn_id < 0)
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goto bail;
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|
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GST_INFO_OBJECT (self, "configuring mode setting");
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|
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ensure_kms_allocator (self);
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kmsmem = (GstKMSMemory *) gst_kms_allocator_bo_alloc (self->allocator, vinfo);
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if (!kmsmem)
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goto bo_failed;
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fb_id = kmsmem->fb_id;
|
|
|
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conn = drmModeGetConnector (self->fd, self->conn_id);
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if (!conn)
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goto connector_failed;
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|
|
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for (i = 0; i < conn->count_modes; i++) {
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if (conn->modes[i].vdisplay == GST_VIDEO_INFO_HEIGHT (vinfo) &&
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conn->modes[i].hdisplay == GST_VIDEO_INFO_WIDTH (vinfo)) {
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mode = &conn->modes[i];
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break;
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}
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}
|
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if (!mode)
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goto mode_failed;
|
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|
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err = drmModeSetCrtc (self->fd, self->crtc_id, fb_id, 0, 0,
|
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(uint32_t *) & self->conn_id, 1, mode);
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if (err)
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goto modesetting_failed;
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|
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g_clear_pointer (&self->tmp_kmsmem, gst_memory_unref);
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self->tmp_kmsmem = (GstMemory *) kmsmem;
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|
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ret = TRUE;
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bail:
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if (conn)
|
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drmModeFreeConnector (conn);
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|
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return ret;
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|
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/* ERRORS */
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bo_failed:
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{
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GST_ERROR_OBJECT (self,
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"failed to allocate buffer object for mode setting");
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goto bail;
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}
|
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connector_failed:
|
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{
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GST_ERROR_OBJECT (self, "Could not find a valid monitor connector");
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goto bail;
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}
|
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mode_failed:
|
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{
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GST_ERROR_OBJECT (self, "cannot find appropriate mode");
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goto bail;
|
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}
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|
modesetting_failed:
|
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{
|
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GST_ERROR_OBJECT (self, "Failed to set mode: %s", g_strerror (errno));
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goto bail;
|
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}
|
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}
|
|
|
|
static gboolean
|
|
ensure_allowed_caps (GstKMSSink * self, drmModeConnector * conn,
|
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drmModePlane * plane, drmModeRes * res)
|
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{
|
|
GstCaps *out_caps, *tmp_caps, *caps;
|
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int i, j;
|
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GstVideoFormat fmt;
|
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const gchar *format;
|
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drmModeModeInfo *mode;
|
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gint count_modes;
|
|
|
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if (self->allowed_caps)
|
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return TRUE;
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|
|
|
out_caps = gst_caps_new_empty ();
|
|
if (!out_caps)
|
|
return FALSE;
|
|
|
|
if (conn && self->modesetting_enabled)
|
|
count_modes = conn->count_modes;
|
|
else
|
|
count_modes = 1;
|
|
|
|
for (i = 0; i < count_modes; i++) {
|
|
tmp_caps = gst_caps_new_empty ();
|
|
if (!tmp_caps)
|
|
return FALSE;
|
|
|
|
mode = NULL;
|
|
if (conn && self->modesetting_enabled)
|
|
mode = &conn->modes[i];
|
|
|
|
for (j = 0; j < plane->count_formats; j++) {
|
|
fmt = gst_video_format_from_drm (plane->formats[j]);
|
|
if (fmt == GST_VIDEO_FORMAT_UNKNOWN) {
|
|
GST_INFO_OBJECT (self, "ignoring format %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (plane->formats[j]));
|
|
continue;
|
|
}
|
|
|
|
format = gst_video_format_to_string (fmt);
|
|
|
|
if (mode) {
|
|
caps = gst_caps_new_simple ("video/x-raw",
|
|
"format", G_TYPE_STRING, format,
|
|
"width", G_TYPE_INT, mode->hdisplay,
|
|
"height", G_TYPE_INT, mode->vdisplay,
|
|
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
|
|
} else {
|
|
caps = gst_caps_new_simple ("video/x-raw",
|
|
"format", G_TYPE_STRING, format,
|
|
"width", GST_TYPE_INT_RANGE, res->min_width, res->max_width,
|
|
"height", GST_TYPE_INT_RANGE, res->min_height, res->max_height,
|
|
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
|
|
}
|
|
if (!caps)
|
|
continue;
|
|
|
|
tmp_caps = gst_caps_merge (tmp_caps, caps);
|
|
}
|
|
|
|
out_caps = gst_caps_merge (out_caps, gst_caps_simplify (tmp_caps));
|
|
}
|
|
|
|
if (gst_caps_is_empty (out_caps)) {
|
|
GST_DEBUG_OBJECT (self, "allowed caps is empty");
|
|
gst_caps_unref (out_caps);
|
|
return FALSE;
|
|
}
|
|
|
|
self->allowed_caps = gst_caps_simplify (out_caps);
|
|
|
|
GST_DEBUG_OBJECT (self, "allowed caps = %" GST_PTR_FORMAT,
|
|
self->allowed_caps);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
set_drm_property (gint fd, guint32 object, guint32 object_type,
|
|
drmModeObjectPropertiesPtr properties, const gchar * prop_name,
|
|
guint64 value)
|
|
{
|
|
guint i;
|
|
gboolean ret = FALSE;
|
|
|
|
for (i = 0; i < properties->count_props && !ret; i++) {
|
|
drmModePropertyPtr property;
|
|
|
|
property = drmModeGetProperty (fd, properties->props[i]);
|
|
|
|
/* GstStructure parser limits the set of supported character, so we
|
|
* replace the invalid characters with '-'. In DRM, this is generally
|
|
* replacing spaces into '-'. */
|
|
g_strcanon (property->name, G_CSET_a_2_z G_CSET_A_2_Z G_CSET_DIGITS "_",
|
|
'-');
|
|
|
|
GST_LOG ("found property %s (looking for %s)", property->name, prop_name);
|
|
|
|
if (!strcmp (property->name, prop_name)) {
|
|
drmModeObjectSetProperty (fd, object, object_type,
|
|
property->prop_id, value);
|
|
ret = TRUE;
|
|
}
|
|
drmModeFreeProperty (property);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
GstKMSSink *self;
|
|
drmModeObjectPropertiesPtr properties;
|
|
guint obj_id;
|
|
guint obj_type;
|
|
const gchar *obj_type_str;
|
|
} SetPropsIter;
|
|
|
|
static gboolean
|
|
set_obj_prop (GQuark field_id, const GValue * value, gpointer user_data)
|
|
{
|
|
SetPropsIter *iter = user_data;
|
|
GstKMSSink *self = iter->self;
|
|
const gchar *name;
|
|
guint64 v;
|
|
|
|
name = g_quark_to_string (field_id);
|
|
|
|
if (G_VALUE_HOLDS (value, G_TYPE_INT))
|
|
v = g_value_get_int (value);
|
|
else if (G_VALUE_HOLDS (value, G_TYPE_UINT))
|
|
v = g_value_get_uint (value);
|
|
else if (G_VALUE_HOLDS (value, G_TYPE_INT64))
|
|
v = g_value_get_int64 (value);
|
|
else if (G_VALUE_HOLDS (value, G_TYPE_UINT64))
|
|
v = g_value_get_uint64 (value);
|
|
else {
|
|
GST_WARNING_OBJECT (self,
|
|
"'uint64' value expected for control '%s'.", name);
|
|
return TRUE;
|
|
}
|
|
|
|
if (set_drm_property (self->fd, iter->obj_id, iter->obj_type,
|
|
iter->properties, name, v)) {
|
|
GST_DEBUG_OBJECT (self,
|
|
"Set %s property '%s' to %" G_GUINT64_FORMAT,
|
|
iter->obj_type_str, name, v);
|
|
} else {
|
|
GST_WARNING_OBJECT (self,
|
|
"Failed to set %s property '%s' to %" G_GUINT64_FORMAT,
|
|
iter->obj_type_str, name, v);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_kms_sink_update_properties (SetPropsIter * iter, GstStructure * props)
|
|
{
|
|
GstKMSSink *self = iter->self;
|
|
|
|
iter->properties = drmModeObjectGetProperties (self->fd, iter->obj_id,
|
|
iter->obj_type);
|
|
|
|
gst_structure_foreach (props, set_obj_prop, iter);
|
|
|
|
drmModeFreeObjectProperties (iter->properties);
|
|
}
|
|
|
|
static void
|
|
gst_kms_sink_update_connector_properties (GstKMSSink * self)
|
|
{
|
|
SetPropsIter iter;
|
|
|
|
if (!self->connector_props)
|
|
return;
|
|
|
|
iter.self = self;
|
|
iter.obj_id = self->conn_id;
|
|
iter.obj_type = DRM_MODE_OBJECT_CONNECTOR;
|
|
iter.obj_type_str = "connector";
|
|
|
|
gst_kms_sink_update_properties (&iter, self->connector_props);
|
|
}
|
|
|
|
static void
|
|
gst_kms_sink_update_plane_properties (GstKMSSink * self)
|
|
{
|
|
SetPropsIter iter;
|
|
|
|
if (!self->plane_props)
|
|
return;
|
|
|
|
iter.self = self;
|
|
iter.obj_id = self->plane_id;
|
|
iter.obj_type = DRM_MODE_OBJECT_PLANE;
|
|
iter.obj_type_str = "plane";
|
|
|
|
gst_kms_sink_update_properties (&iter, self->plane_props);
|
|
}
|
|
|
|
static gboolean
|
|
gst_kms_sink_start (GstBaseSink * bsink)
|
|
{
|
|
GstKMSSink *self;
|
|
drmModeRes *res;
|
|
drmModeConnector *conn;
|
|
drmModeCrtc *crtc;
|
|
drmModePlaneRes *pres;
|
|
drmModePlane *plane;
|
|
gboolean universal_planes;
|
|
gboolean ret;
|
|
|
|
self = GST_KMS_SINK (bsink);
|
|
universal_planes = FALSE;
|
|
ret = FALSE;
|
|
res = NULL;
|
|
conn = NULL;
|
|
crtc = NULL;
|
|
pres = NULL;
|
|
plane = NULL;
|
|
|
|
if (self->devname || self->bus_id)
|
|
self->fd = drmOpen (self->devname, self->bus_id);
|
|
else
|
|
self->fd = kms_open (&self->devname);
|
|
if (self->fd < 0)
|
|
goto open_failed;
|
|
|
|
log_drm_version (self);
|
|
if (!get_drm_caps (self))
|
|
goto bail;
|
|
|
|
res = drmModeGetResources (self->fd);
|
|
if (!res)
|
|
goto resources_failed;
|
|
|
|
if (self->conn_id == -1)
|
|
conn = find_main_monitor (self->fd, res);
|
|
else
|
|
conn = drmModeGetConnector (self->fd, self->conn_id);
|
|
if (!conn)
|
|
goto connector_failed;
|
|
|
|
crtc = find_crtc_for_connector (self->fd, res, conn, &self->pipe);
|
|
if (!crtc)
|
|
goto crtc_failed;
|
|
|
|
if (!crtc->mode_valid || self->modesetting_enabled) {
|
|
GST_DEBUG_OBJECT (self, "enabling modesetting");
|
|
self->modesetting_enabled = TRUE;
|
|
universal_planes = TRUE;
|
|
}
|
|
|
|
if (crtc->mode_valid && self->modesetting_enabled && self->restore_crtc) {
|
|
self->saved_crtc = (drmModeCrtc *) crtc;
|
|
}
|
|
|
|
retry_find_plane:
|
|
if (universal_planes &&
|
|
drmSetClientCap (self->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1))
|
|
goto set_cap_failed;
|
|
|
|
pres = drmModeGetPlaneResources (self->fd);
|
|
if (!pres)
|
|
goto plane_resources_failed;
|
|
|
|
if (self->plane_id == -1)
|
|
plane = find_plane_for_crtc (self->fd, res, pres, crtc->crtc_id);
|
|
else
|
|
plane = drmModeGetPlane (self->fd, self->plane_id);
|
|
if (!plane)
|
|
goto plane_failed;
|
|
|
|
if (!ensure_allowed_caps (self, conn, plane, res))
|
|
goto allowed_caps_failed;
|
|
|
|
self->conn_id = conn->connector_id;
|
|
self->crtc_id = crtc->crtc_id;
|
|
self->plane_id = plane->plane_id;
|
|
|
|
GST_INFO_OBJECT (self, "connector id = %d / crtc id = %d / plane id = %d",
|
|
self->conn_id, self->crtc_id, self->plane_id);
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
self->hdisplay = crtc->mode.hdisplay;
|
|
self->vdisplay = crtc->mode.vdisplay;
|
|
|
|
if (self->render_rect.w == 0 || self->render_rect.h == 0) {
|
|
self->render_rect.x = 0;
|
|
self->render_rect.y = 0;
|
|
self->render_rect.w = self->hdisplay;
|
|
self->render_rect.h = self->vdisplay;
|
|
}
|
|
|
|
self->pending_rect = self->render_rect;
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
self->buffer_id = crtc->buffer_id;
|
|
|
|
self->mm_width = conn->mmWidth;
|
|
self->mm_height = conn->mmHeight;
|
|
|
|
GST_INFO_OBJECT (self, "display size: pixels = %dx%d / millimeters = %dx%d",
|
|
self->hdisplay, self->vdisplay, self->mm_width, self->mm_height);
|
|
|
|
self->pollfd.fd = self->fd;
|
|
gst_poll_add_fd (self->poll, &self->pollfd);
|
|
gst_poll_fd_ctl_read (self->poll, &self->pollfd, TRUE);
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), g_properties[PROP_DISPLAY_WIDTH]);
|
|
g_object_notify_by_pspec (G_OBJECT (self), g_properties[PROP_DISPLAY_HEIGHT]);
|
|
|
|
gst_kms_sink_update_connector_properties (self);
|
|
gst_kms_sink_update_plane_properties (self);
|
|
|
|
ret = TRUE;
|
|
|
|
bail:
|
|
if (plane)
|
|
drmModeFreePlane (plane);
|
|
if (pres)
|
|
drmModeFreePlaneResources (pres);
|
|
if (crtc != self->saved_crtc)
|
|
drmModeFreeCrtc (crtc);
|
|
if (conn)
|
|
drmModeFreeConnector (conn);
|
|
if (res)
|
|
drmModeFreeResources (res);
|
|
|
|
if (!ret && self->fd >= 0) {
|
|
drmClose (self->fd);
|
|
self->fd = -1;
|
|
}
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
open_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, RESOURCE, OPEN_READ_WRITE,
|
|
("Could not open DRM module %s", GST_STR_NULL (self->devname)),
|
|
("reason: %s (%d)", g_strerror (errno), errno));
|
|
return FALSE;
|
|
}
|
|
|
|
resources_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
|
|
("drmModeGetResources failed"),
|
|
("reason: %s (%d)", g_strerror (errno), errno));
|
|
goto bail;
|
|
}
|
|
|
|
connector_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
|
|
("Could not find a valid monitor connector"), (NULL));
|
|
goto bail;
|
|
}
|
|
|
|
crtc_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
|
|
("Could not find a crtc for connector"), (NULL));
|
|
goto bail;
|
|
}
|
|
|
|
set_cap_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
|
|
("Could not set universal planes capability bit"), (NULL));
|
|
goto bail;
|
|
}
|
|
|
|
plane_resources_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
|
|
("drmModeGetPlaneResources failed"),
|
|
("reason: %s (%d)", g_strerror (errno), errno));
|
|
goto bail;
|
|
}
|
|
|
|
plane_failed:
|
|
{
|
|
if (universal_planes) {
|
|
GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
|
|
("Could not find a plane for crtc"), (NULL));
|
|
goto bail;
|
|
} else {
|
|
universal_planes = TRUE;
|
|
goto retry_find_plane;
|
|
}
|
|
}
|
|
|
|
allowed_caps_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
|
|
("Could not get allowed GstCaps of device"),
|
|
("driver does not provide mode settings configuration"));
|
|
goto bail;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_kms_sink_stop (GstBaseSink * bsink)
|
|
{
|
|
GstKMSSink *self;
|
|
int err;
|
|
|
|
self = GST_KMS_SINK (bsink);
|
|
|
|
if (self->allocator)
|
|
gst_kms_allocator_clear_cache (self->allocator);
|
|
|
|
gst_buffer_replace (&self->last_buffer, NULL);
|
|
gst_caps_replace (&self->allowed_caps, NULL);
|
|
gst_object_replace ((GstObject **) & self->pool, NULL);
|
|
gst_object_replace ((GstObject **) & self->allocator, NULL);
|
|
|
|
gst_poll_remove_fd (self->poll, &self->pollfd);
|
|
gst_poll_restart (self->poll);
|
|
gst_poll_fd_init (&self->pollfd);
|
|
|
|
if (self->saved_crtc) {
|
|
drmModeCrtc *crtc = (drmModeCrtc *) self->saved_crtc;
|
|
|
|
err = drmModeSetCrtc (self->fd, crtc->crtc_id, crtc->buffer_id, crtc->x,
|
|
crtc->y, (uint32_t *) & self->conn_id, 1, &crtc->mode);
|
|
if (err)
|
|
GST_ERROR_OBJECT (self, "Failed to restore previous CRTC mode: %s",
|
|
g_strerror (errno));
|
|
|
|
drmModeFreeCrtc (crtc);
|
|
self->saved_crtc = NULL;
|
|
}
|
|
|
|
if (self->fd >= 0) {
|
|
drmClose (self->fd);
|
|
self->fd = -1;
|
|
}
|
|
|
|
GST_OBJECT_LOCK (bsink);
|
|
self->hdisplay = 0;
|
|
self->vdisplay = 0;
|
|
self->pending_rect.x = 0;
|
|
self->pending_rect.y = 0;
|
|
self->pending_rect.w = 0;
|
|
self->pending_rect.h = 0;
|
|
self->render_rect = self->pending_rect;
|
|
GST_OBJECT_UNLOCK (bsink);
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (self), g_properties[PROP_DISPLAY_WIDTH]);
|
|
g_object_notify_by_pspec (G_OBJECT (self), g_properties[PROP_DISPLAY_HEIGHT]);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_kms_sink_get_allowed_caps (GstKMSSink * self)
|
|
{
|
|
if (!self->allowed_caps)
|
|
return NULL; /* base class will return the template caps */
|
|
return gst_caps_ref (self->allowed_caps);
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_kms_sink_get_caps (GstBaseSink * bsink, GstCaps * filter)
|
|
{
|
|
GstKMSSink *self;
|
|
GstCaps *caps, *out_caps;
|
|
GstStructure *s;
|
|
guint dpy_par_n, dpy_par_d;
|
|
|
|
self = GST_KMS_SINK (bsink);
|
|
|
|
caps = gst_kms_sink_get_allowed_caps (self);
|
|
if (!caps)
|
|
return NULL;
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
|
|
if (!self->can_scale) {
|
|
out_caps = gst_caps_new_empty ();
|
|
gst_video_calculate_device_ratio (self->hdisplay, self->vdisplay,
|
|
self->mm_width, self->mm_height, &dpy_par_n, &dpy_par_d);
|
|
|
|
s = gst_structure_copy (gst_caps_get_structure (caps, 0));
|
|
gst_structure_set (s, "width", G_TYPE_INT, self->pending_rect.w,
|
|
"height", G_TYPE_INT, self->pending_rect.h,
|
|
"pixel-aspect-ratio", GST_TYPE_FRACTION, dpy_par_n, dpy_par_d, NULL);
|
|
|
|
gst_caps_append_structure (out_caps, s);
|
|
|
|
out_caps = gst_caps_merge (out_caps, caps);
|
|
caps = NULL;
|
|
|
|
/* enforce our display aspect ratio */
|
|
gst_caps_set_simple (out_caps, "pixel-aspect-ratio", GST_TYPE_FRACTION,
|
|
dpy_par_n, dpy_par_d, NULL);
|
|
} else {
|
|
out_caps = gst_caps_make_writable (caps);
|
|
caps = NULL;
|
|
}
|
|
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
GST_DEBUG_OBJECT (self, "Proposing caps %" GST_PTR_FORMAT, out_caps);
|
|
|
|
if (filter) {
|
|
caps = out_caps;
|
|
out_caps = gst_caps_intersect_full (caps, filter, GST_CAPS_INTERSECT_FIRST);
|
|
gst_caps_unref (caps);
|
|
}
|
|
|
|
return out_caps;
|
|
}
|
|
|
|
static GstBufferPool *
|
|
gst_kms_sink_create_pool (GstKMSSink * self, GstCaps * caps, gsize size,
|
|
gint min)
|
|
{
|
|
GstBufferPool *pool;
|
|
GstStructure *config;
|
|
|
|
pool = gst_kms_buffer_pool_new ();
|
|
if (!pool)
|
|
goto pool_failed;
|
|
|
|
config = gst_buffer_pool_get_config (pool);
|
|
gst_buffer_pool_config_set_params (config, caps, size, min, 0);
|
|
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
|
|
|
|
ensure_kms_allocator (self);
|
|
gst_buffer_pool_config_set_allocator (config, self->allocator, NULL);
|
|
|
|
if (!gst_buffer_pool_set_config (pool, config))
|
|
goto config_failed;
|
|
|
|
return pool;
|
|
|
|
/* ERRORS */
|
|
pool_failed:
|
|
{
|
|
GST_ERROR_OBJECT (self, "failed to create buffer pool");
|
|
return NULL;
|
|
}
|
|
config_failed:
|
|
{
|
|
GST_ERROR_OBJECT (self, "failed to set config");
|
|
gst_object_unref (pool);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_kms_sink_calculate_display_ratio (GstKMSSink * self, GstVideoInfo * vinfo,
|
|
gint * scaled_width, gint * scaled_height)
|
|
{
|
|
guint dar_n, dar_d;
|
|
guint video_width, video_height;
|
|
guint video_par_n, video_par_d;
|
|
guint dpy_par_n, dpy_par_d;
|
|
|
|
video_width = GST_VIDEO_INFO_WIDTH (vinfo);
|
|
video_height = GST_VIDEO_INFO_HEIGHT (vinfo);
|
|
video_par_n = GST_VIDEO_INFO_PAR_N (vinfo);
|
|
video_par_d = GST_VIDEO_INFO_PAR_D (vinfo);
|
|
|
|
if (self->can_scale) {
|
|
gst_video_calculate_device_ratio (self->hdisplay, self->vdisplay,
|
|
self->mm_width, self->mm_height, &dpy_par_n, &dpy_par_d);
|
|
} else {
|
|
*scaled_width = video_width;
|
|
*scaled_height = video_height;
|
|
goto out;
|
|
}
|
|
|
|
if (!gst_video_calculate_display_ratio (&dar_n, &dar_d, video_width,
|
|
video_height, video_par_n, video_par_d, dpy_par_n, dpy_par_d))
|
|
return FALSE;
|
|
|
|
GST_DEBUG_OBJECT (self, "video calculated display ratio: %d/%d", dar_n,
|
|
dar_d);
|
|
|
|
/* now find a width x height that respects this display ratio.
|
|
* prefer those that have one of w/h the same as the incoming video
|
|
* using wd / hd = dar_n / dar_d */
|
|
|
|
/* start with same height, because of interlaced video */
|
|
/* check hd / dar_d is an integer scale factor, and scale wd with the PAR */
|
|
if (video_height % dar_d == 0) {
|
|
GST_DEBUG_OBJECT (self, "keeping video height");
|
|
*scaled_width = (guint)
|
|
gst_util_uint64_scale_int (video_height, dar_n, dar_d);
|
|
*scaled_height = video_height;
|
|
} else if (video_width % dar_n == 0) {
|
|
GST_DEBUG_OBJECT (self, "keeping video width");
|
|
*scaled_width = video_width;
|
|
*scaled_height = (guint)
|
|
gst_util_uint64_scale_int (video_width, dar_d, dar_n);
|
|
} else {
|
|
GST_DEBUG_OBJECT (self, "approximating while keeping video height");
|
|
*scaled_width = (guint)
|
|
gst_util_uint64_scale_int (video_height, dar_n, dar_d);
|
|
*scaled_height = video_height;
|
|
}
|
|
|
|
out:
|
|
GST_DEBUG_OBJECT (self, "scaling to %dx%d", *scaled_width, *scaled_height);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_kms_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
|
|
{
|
|
GstKMSSink *self;
|
|
GstVideoInfo vinfo;
|
|
|
|
self = GST_KMS_SINK (bsink);
|
|
|
|
if (!gst_video_info_from_caps (&vinfo, caps))
|
|
goto invalid_format;
|
|
self->vinfo = vinfo;
|
|
|
|
if (!gst_kms_sink_calculate_display_ratio (self, &vinfo,
|
|
&GST_VIDEO_SINK_WIDTH (self), &GST_VIDEO_SINK_HEIGHT (self)))
|
|
goto no_disp_ratio;
|
|
|
|
if (GST_VIDEO_SINK_WIDTH (self) <= 0 || GST_VIDEO_SINK_HEIGHT (self) <= 0)
|
|
goto invalid_size;
|
|
|
|
/* discard dumb buffer pool */
|
|
if (self->pool) {
|
|
gst_buffer_pool_set_active (self->pool, FALSE);
|
|
gst_object_unref (self->pool);
|
|
self->pool = NULL;
|
|
}
|
|
|
|
if (self->modesetting_enabled && !configure_mode_setting (self, &vinfo))
|
|
goto modesetting_failed;
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
if (self->reconfigure) {
|
|
self->reconfigure = FALSE;
|
|
self->render_rect = self->pending_rect;
|
|
}
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
GST_DEBUG_OBJECT (self, "negotiated caps = %" GST_PTR_FORMAT, caps);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
invalid_format:
|
|
{
|
|
GST_ERROR_OBJECT (self, "caps invalid");
|
|
return FALSE;
|
|
}
|
|
|
|
invalid_size:
|
|
{
|
|
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
|
|
("Invalid image size."));
|
|
return FALSE;
|
|
}
|
|
|
|
no_disp_ratio:
|
|
{
|
|
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
|
|
("Error calculating the output display ratio of the video."));
|
|
return FALSE;
|
|
}
|
|
|
|
modesetting_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
|
|
("failed to configure video mode"));
|
|
return FALSE;
|
|
}
|
|
|
|
}
|
|
|
|
static gboolean
|
|
gst_kms_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
|
|
{
|
|
GstKMSSink *self;
|
|
GstCaps *caps;
|
|
gboolean need_pool;
|
|
GstVideoInfo vinfo;
|
|
GstBufferPool *pool;
|
|
gsize size;
|
|
|
|
self = GST_KMS_SINK (bsink);
|
|
|
|
GST_DEBUG_OBJECT (self, "propose allocation");
|
|
|
|
gst_query_parse_allocation (query, &caps, &need_pool);
|
|
if (!caps)
|
|
goto no_caps;
|
|
if (!gst_video_info_from_caps (&vinfo, caps))
|
|
goto invalid_caps;
|
|
|
|
size = GST_VIDEO_INFO_SIZE (&vinfo);
|
|
|
|
pool = NULL;
|
|
if (need_pool) {
|
|
pool = gst_kms_sink_create_pool (self, caps, size, 0);
|
|
if (!pool)
|
|
goto no_pool;
|
|
|
|
/* Only export for pool used upstream */
|
|
if (self->has_prime_export) {
|
|
GstStructure *config = gst_buffer_pool_get_config (pool);
|
|
gst_buffer_pool_config_add_option (config,
|
|
GST_BUFFER_POOL_OPTION_KMS_PRIME_EXPORT);
|
|
gst_buffer_pool_set_config (pool, config);
|
|
}
|
|
}
|
|
|
|
/* we need at least 2 buffer because we hold on to the last one */
|
|
gst_query_add_allocation_pool (query, pool, size, 2, 0);
|
|
if (pool)
|
|
gst_object_unref (pool);
|
|
|
|
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
|
|
gst_query_add_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE, NULL);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_caps:
|
|
{
|
|
GST_DEBUG_OBJECT (bsink, "no caps specified");
|
|
return FALSE;
|
|
}
|
|
invalid_caps:
|
|
{
|
|
GST_DEBUG_OBJECT (bsink, "invalid caps specified");
|
|
return FALSE;
|
|
}
|
|
no_pool:
|
|
{
|
|
/* Already warned in create_pool */
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
sync_handler (gint fd, guint frame, guint sec, guint usec, gpointer data)
|
|
{
|
|
gboolean *waiting;
|
|
|
|
waiting = data;
|
|
*waiting = FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_kms_sink_sync (GstKMSSink * self)
|
|
{
|
|
gint ret;
|
|
gboolean waiting;
|
|
drmEventContext evctxt = {
|
|
.version = DRM_EVENT_CONTEXT_VERSION,
|
|
.page_flip_handler = sync_handler,
|
|
.vblank_handler = sync_handler,
|
|
};
|
|
drmVBlank vbl = {
|
|
.request = {
|
|
.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT,
|
|
.sequence = 1,
|
|
.signal = (gulong) & waiting,
|
|
},
|
|
};
|
|
|
|
if (self->pipe == 1)
|
|
vbl.request.type |= DRM_VBLANK_SECONDARY;
|
|
else if (self->pipe > 1)
|
|
vbl.request.type |= self->pipe << DRM_VBLANK_HIGH_CRTC_SHIFT;
|
|
|
|
waiting = TRUE;
|
|
if (!self->has_async_page_flip && !self->modesetting_enabled) {
|
|
ret = drmWaitVBlank (self->fd, &vbl);
|
|
if (ret)
|
|
goto vblank_failed;
|
|
} else {
|
|
ret = drmModePageFlip (self->fd, self->crtc_id, self->buffer_id,
|
|
DRM_MODE_PAGE_FLIP_EVENT, &waiting);
|
|
if (ret)
|
|
goto pageflip_failed;
|
|
}
|
|
|
|
while (waiting) {
|
|
do {
|
|
ret = gst_poll_wait (self->poll, 3 * GST_SECOND);
|
|
} while (ret == -1 && (errno == EAGAIN || errno == EINTR));
|
|
|
|
ret = drmHandleEvent (self->fd, &evctxt);
|
|
if (ret)
|
|
goto event_failed;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
vblank_failed:
|
|
{
|
|
GST_WARNING_OBJECT (self, "drmWaitVBlank failed: %s (%d)",
|
|
g_strerror (errno), errno);
|
|
return FALSE;
|
|
}
|
|
pageflip_failed:
|
|
{
|
|
GST_WARNING_OBJECT (self, "drmModePageFlip failed: %s (%d)",
|
|
g_strerror (errno), errno);
|
|
return FALSE;
|
|
}
|
|
event_failed:
|
|
{
|
|
GST_ERROR_OBJECT (self, "drmHandleEvent failed: %s (%d)",
|
|
g_strerror (errno), errno);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_kms_sink_import_dmabuf (GstKMSSink * self, GstBuffer * inbuf,
|
|
GstBuffer ** outbuf)
|
|
{
|
|
gint prime_fds[GST_VIDEO_MAX_PLANES] = { 0, };
|
|
GstVideoMeta *meta;
|
|
guint i, n_mem, n_planes;
|
|
GstKMSMemory *kmsmem;
|
|
guint mems_idx[GST_VIDEO_MAX_PLANES];
|
|
gsize mems_skip[GST_VIDEO_MAX_PLANES];
|
|
GstMemory *mems[GST_VIDEO_MAX_PLANES];
|
|
|
|
if (!self->has_prime_import)
|
|
return FALSE;
|
|
|
|
/* This will eliminate most non-dmabuf out there */
|
|
if (!gst_is_dmabuf_memory (gst_buffer_peek_memory (inbuf, 0)))
|
|
return FALSE;
|
|
|
|
n_planes = GST_VIDEO_INFO_N_PLANES (&self->vinfo);
|
|
n_mem = gst_buffer_n_memory (inbuf);
|
|
meta = gst_buffer_get_video_meta (inbuf);
|
|
|
|
GST_TRACE_OBJECT (self, "Found a dmabuf with %u planes and %u memories",
|
|
n_planes, n_mem);
|
|
|
|
/* We cannot have multiple dmabuf per plane */
|
|
if (n_mem > n_planes)
|
|
return FALSE;
|
|
g_assert (n_planes != 0);
|
|
|
|
/* Update video info based on video meta */
|
|
if (meta) {
|
|
GST_VIDEO_INFO_WIDTH (&self->vinfo) = meta->width;
|
|
GST_VIDEO_INFO_HEIGHT (&self->vinfo) = meta->height;
|
|
|
|
for (i = 0; i < meta->n_planes; i++) {
|
|
GST_VIDEO_INFO_PLANE_OFFSET (&self->vinfo, i) = meta->offset[i];
|
|
GST_VIDEO_INFO_PLANE_STRIDE (&self->vinfo, i) = meta->stride[i];
|
|
}
|
|
}
|
|
|
|
/* Find and validate all memories */
|
|
for (i = 0; i < n_planes; i++) {
|
|
guint length;
|
|
|
|
if (!gst_buffer_find_memory (inbuf,
|
|
GST_VIDEO_INFO_PLANE_OFFSET (&self->vinfo, i), 1,
|
|
&mems_idx[i], &length, &mems_skip[i]))
|
|
return FALSE;
|
|
|
|
mems[i] = gst_buffer_peek_memory (inbuf, mems_idx[i]);
|
|
|
|
/* adjust for memory offset, in case data does not
|
|
* start from byte 0 in the dmabuf fd */
|
|
mems_skip[i] += mems[i]->offset;
|
|
|
|
/* And all memory found must be dmabuf */
|
|
if (!gst_is_dmabuf_memory (mems[i]))
|
|
return FALSE;
|
|
}
|
|
|
|
ensure_kms_allocator (self);
|
|
|
|
kmsmem = (GstKMSMemory *) gst_kms_allocator_get_cached (mems[0]);
|
|
if (kmsmem) {
|
|
GST_LOG_OBJECT (self, "found KMS mem %p in DMABuf mem %p with fb id = %d",
|
|
kmsmem, mems[0], kmsmem->fb_id);
|
|
goto wrap_mem;
|
|
}
|
|
|
|
for (i = 0; i < n_planes; i++)
|
|
prime_fds[i] = gst_dmabuf_memory_get_fd (mems[i]);
|
|
|
|
GST_LOG_OBJECT (self, "found these prime ids: %d, %d, %d, %d", prime_fds[0],
|
|
prime_fds[1], prime_fds[2], prime_fds[3]);
|
|
|
|
kmsmem = gst_kms_allocator_dmabuf_import (self->allocator,
|
|
prime_fds, n_planes, mems_skip, &self->vinfo);
|
|
if (!kmsmem)
|
|
return FALSE;
|
|
|
|
GST_LOG_OBJECT (self, "setting KMS mem %p to DMABuf mem %p with fb id = %d",
|
|
kmsmem, mems[0], kmsmem->fb_id);
|
|
gst_kms_allocator_cache (self->allocator, mems[0], GST_MEMORY_CAST (kmsmem));
|
|
|
|
wrap_mem:
|
|
*outbuf = gst_buffer_new ();
|
|
if (!*outbuf)
|
|
return FALSE;
|
|
gst_buffer_append_memory (*outbuf, gst_memory_ref (GST_MEMORY_CAST (kmsmem)));
|
|
gst_buffer_add_parent_buffer_meta (*outbuf, inbuf);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
ensure_internal_pool (GstKMSSink * self, GstVideoInfo * in_vinfo,
|
|
GstBuffer * inbuf)
|
|
{
|
|
GstBufferPool *pool;
|
|
GstVideoInfo vinfo = *in_vinfo;
|
|
GstVideoMeta *vmeta;
|
|
GstCaps *caps;
|
|
|
|
if (self->pool)
|
|
return TRUE;
|
|
|
|
/* When cropping, the caps matches the cropped rectangle width/height, but
|
|
* we can retrieve the padded width/height from the VideoMeta (which is kept
|
|
* intact when adding crop meta */
|
|
if ((vmeta = gst_buffer_get_video_meta (inbuf))) {
|
|
vinfo.width = vmeta->width;
|
|
vinfo.height = vmeta->height;
|
|
}
|
|
|
|
caps = gst_video_info_to_caps (&vinfo);
|
|
pool = gst_kms_sink_create_pool (self, caps, gst_buffer_get_size (inbuf), 2);
|
|
gst_caps_unref (caps);
|
|
|
|
if (!pool)
|
|
return FALSE;
|
|
|
|
if (!gst_buffer_pool_set_active (pool, TRUE))
|
|
goto activate_pool_failed;
|
|
|
|
self->pool = pool;
|
|
return TRUE;
|
|
|
|
activate_pool_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, STREAM, FAILED, ("failed to activate buffer pool"),
|
|
("failed to activate buffer pool"));
|
|
gst_object_unref (pool);
|
|
return FALSE;
|
|
}
|
|
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_kms_sink_copy_to_dumb_buffer (GstKMSSink * self, GstVideoInfo * vinfo,
|
|
GstBuffer * inbuf)
|
|
{
|
|
GstFlowReturn ret;
|
|
GstVideoFrame inframe, outframe;
|
|
gboolean success;
|
|
GstBuffer *buf = NULL;
|
|
|
|
if (!ensure_internal_pool (self, vinfo, inbuf))
|
|
goto bail;
|
|
|
|
ret = gst_buffer_pool_acquire_buffer (self->pool, &buf, NULL);
|
|
if (ret != GST_FLOW_OK)
|
|
goto create_buffer_failed;
|
|
|
|
if (!gst_video_frame_map (&inframe, vinfo, inbuf, GST_MAP_READ))
|
|
goto error_map_src_buffer;
|
|
|
|
if (!gst_video_frame_map (&outframe, vinfo, buf, GST_MAP_WRITE))
|
|
goto error_map_dst_buffer;
|
|
|
|
success = gst_video_frame_copy (&outframe, &inframe);
|
|
gst_video_frame_unmap (&outframe);
|
|
gst_video_frame_unmap (&inframe);
|
|
if (!success)
|
|
goto error_copy_buffer;
|
|
|
|
return buf;
|
|
|
|
bail:
|
|
{
|
|
if (buf)
|
|
gst_buffer_unref (buf);
|
|
return NULL;
|
|
}
|
|
|
|
/* ERRORS */
|
|
create_buffer_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (self, STREAM, FAILED, ("allocation failed"),
|
|
("failed to create buffer"));
|
|
return NULL;
|
|
}
|
|
error_copy_buffer:
|
|
{
|
|
GST_WARNING_OBJECT (self, "failed to upload buffer");
|
|
goto bail;
|
|
}
|
|
error_map_dst_buffer:
|
|
{
|
|
gst_video_frame_unmap (&inframe);
|
|
/* fall-through */
|
|
}
|
|
error_map_src_buffer:
|
|
{
|
|
GST_WARNING_OBJECT (self, "failed to map buffer");
|
|
goto bail;
|
|
}
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_kms_sink_get_input_buffer (GstKMSSink * self, GstBuffer * inbuf)
|
|
{
|
|
GstMemory *mem;
|
|
GstBuffer *buf = NULL;
|
|
|
|
mem = gst_buffer_peek_memory (inbuf, 0);
|
|
if (!mem)
|
|
return NULL;
|
|
|
|
if (gst_is_kms_memory (mem))
|
|
return gst_buffer_ref (inbuf);
|
|
|
|
if (gst_kms_sink_import_dmabuf (self, inbuf, &buf))
|
|
goto done;
|
|
|
|
GST_CAT_INFO_OBJECT (CAT_PERFORMANCE, self, "frame copy");
|
|
buf = gst_kms_sink_copy_to_dumb_buffer (self, &self->vinfo, inbuf);
|
|
|
|
done:
|
|
/* Copy all the non-memory related metas, this way CropMeta will be
|
|
* available upon GstVideoOverlay::expose calls. */
|
|
if (buf)
|
|
gst_buffer_copy_into (buf, inbuf, GST_BUFFER_COPY_METADATA, 0, -1);
|
|
|
|
return buf;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_kms_sink_show_frame (GstVideoSink * vsink, GstBuffer * buf)
|
|
{
|
|
gint ret;
|
|
GstBuffer *buffer = NULL;
|
|
guint32 fb_id;
|
|
GstKMSSink *self;
|
|
GstVideoInfo *vinfo;
|
|
GstVideoCropMeta *crop;
|
|
GstVideoRectangle src = { 0, };
|
|
GstVideoRectangle dst = { 0, };
|
|
GstVideoRectangle result;
|
|
GstFlowReturn res;
|
|
|
|
self = GST_KMS_SINK (vsink);
|
|
|
|
res = GST_FLOW_ERROR;
|
|
|
|
if (buf) {
|
|
buffer = gst_kms_sink_get_input_buffer (self, buf);
|
|
vinfo = &self->vinfo;
|
|
src.w = GST_VIDEO_SINK_WIDTH (self);
|
|
src.h = GST_VIDEO_SINK_HEIGHT (self);
|
|
} else if (self->last_buffer) {
|
|
buffer = gst_buffer_ref (self->last_buffer);
|
|
vinfo = &self->last_vinfo;
|
|
src.w = self->last_width;
|
|
src.h = self->last_height;
|
|
}
|
|
|
|
/* Make sure buf is not used accidentally */
|
|
buf = NULL;
|
|
|
|
if (!buffer)
|
|
return GST_FLOW_ERROR;
|
|
fb_id = gst_kms_memory_get_fb_id (gst_buffer_peek_memory (buffer, 0));
|
|
if (fb_id == 0)
|
|
goto buffer_invalid;
|
|
|
|
GST_TRACE_OBJECT (self, "displaying fb %d", fb_id);
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
if (self->modesetting_enabled) {
|
|
self->buffer_id = fb_id;
|
|
goto sync_frame;
|
|
}
|
|
|
|
if ((crop = gst_buffer_get_video_crop_meta (buffer))) {
|
|
GstVideoInfo cropped_vinfo = *vinfo;
|
|
|
|
cropped_vinfo.width = crop->width;
|
|
cropped_vinfo.height = crop->height;
|
|
|
|
if (!gst_kms_sink_calculate_display_ratio (self, &cropped_vinfo, &src.w,
|
|
&src.h))
|
|
goto no_disp_ratio;
|
|
|
|
src.x = crop->x;
|
|
src.y = crop->y;
|
|
}
|
|
|
|
dst.w = self->render_rect.w;
|
|
dst.h = self->render_rect.h;
|
|
|
|
retry_set_plane:
|
|
gst_video_sink_center_rect (src, dst, &result, self->can_scale);
|
|
|
|
result.x += self->render_rect.x;
|
|
result.y += self->render_rect.y;
|
|
|
|
if (crop) {
|
|
src.w = crop->width;
|
|
src.h = crop->height;
|
|
} else {
|
|
src.w = GST_VIDEO_INFO_WIDTH (vinfo);
|
|
src.h = GST_VIDEO_INFO_HEIGHT (vinfo);
|
|
}
|
|
|
|
/* handle out of screen case */
|
|
if ((result.x + result.w) > self->hdisplay)
|
|
result.w = self->hdisplay - result.x;
|
|
|
|
if ((result.y + result.h) > self->vdisplay)
|
|
result.h = self->vdisplay - result.y;
|
|
|
|
if (result.w <= 0 || result.h <= 0) {
|
|
GST_WARNING_OBJECT (self, "video is out of display range");
|
|
goto sync_frame;
|
|
}
|
|
|
|
/* to make sure it can be show when driver don't support scale */
|
|
if (!self->can_scale) {
|
|
src.w = result.w;
|
|
src.h = result.h;
|
|
}
|
|
|
|
GST_TRACE_OBJECT (self,
|
|
"drmModeSetPlane at (%i,%i) %ix%i sourcing at (%i,%i) %ix%i",
|
|
result.x, result.y, result.w, result.h, src.x, src.y, src.w, src.h);
|
|
|
|
ret = drmModeSetPlane (self->fd, self->plane_id, self->crtc_id, fb_id, 0,
|
|
result.x, result.y, result.w, result.h,
|
|
/* source/cropping coordinates are given in Q16 */
|
|
src.x << 16, src.y << 16, src.w << 16, src.h << 16);
|
|
if (ret) {
|
|
if (self->can_scale) {
|
|
self->can_scale = FALSE;
|
|
goto retry_set_plane;
|
|
}
|
|
goto set_plane_failed;
|
|
}
|
|
|
|
sync_frame:
|
|
/* Wait for the previous frame to complete redraw */
|
|
if (!gst_kms_sink_sync (self)) {
|
|
GST_OBJECT_UNLOCK (self);
|
|
goto bail;
|
|
}
|
|
|
|
/* Save the rendered buffer and its metadata in case a redraw is needed */
|
|
if (buffer != self->last_buffer) {
|
|
gst_buffer_replace (&self->last_buffer, buffer);
|
|
self->last_width = GST_VIDEO_SINK_WIDTH (self);
|
|
self->last_height = GST_VIDEO_SINK_HEIGHT (self);
|
|
self->last_vinfo = self->vinfo;
|
|
}
|
|
g_clear_pointer (&self->tmp_kmsmem, gst_memory_unref);
|
|
|
|
GST_OBJECT_UNLOCK (self);
|
|
res = GST_FLOW_OK;
|
|
|
|
bail:
|
|
gst_buffer_unref (buffer);
|
|
return res;
|
|
|
|
/* ERRORS */
|
|
buffer_invalid:
|
|
{
|
|
GST_ERROR_OBJECT (self, "invalid buffer: it doesn't have a fb id");
|
|
goto bail;
|
|
}
|
|
set_plane_failed:
|
|
{
|
|
GST_OBJECT_UNLOCK (self);
|
|
GST_DEBUG_OBJECT (self, "result = { %d, %d, %d, %d} / "
|
|
"src = { %d, %d, %d %d } / dst = { %d, %d, %d %d }", result.x, result.y,
|
|
result.w, result.h, src.x, src.y, src.w, src.h, dst.x, dst.y, dst.w,
|
|
dst.h);
|
|
GST_ELEMENT_ERROR (self, RESOURCE, FAILED,
|
|
(NULL), ("drmModeSetPlane failed: %s (%d)", g_strerror (errno), errno));
|
|
goto bail;
|
|
}
|
|
no_disp_ratio:
|
|
{
|
|
GST_OBJECT_UNLOCK (self);
|
|
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, (NULL),
|
|
("Error calculating the output display ratio of the video."));
|
|
goto bail;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_kms_sink_drain (GstKMSSink * self)
|
|
{
|
|
GstParentBufferMeta *parent_meta;
|
|
|
|
if (!self->last_buffer)
|
|
return;
|
|
|
|
/* We only need to return the last_buffer if it depends on upstream buffer.
|
|
* In this case, the last_buffer will have a GstParentBufferMeta set. */
|
|
parent_meta = gst_buffer_get_parent_buffer_meta (self->last_buffer);
|
|
if (parent_meta) {
|
|
GstBuffer *dumb_buf, *last_buf;
|
|
|
|
/* If this was imported from our dumb buffer pool we can safely skip the
|
|
* drain */
|
|
if (parent_meta->buffer->pool &&
|
|
GST_IS_KMS_BUFFER_POOL (parent_meta->buffer->pool))
|
|
return;
|
|
|
|
GST_DEBUG_OBJECT (self, "draining");
|
|
|
|
dumb_buf = gst_kms_sink_copy_to_dumb_buffer (self, &self->last_vinfo,
|
|
parent_meta->buffer);
|
|
last_buf = self->last_buffer;
|
|
self->last_buffer = dumb_buf;
|
|
|
|
gst_kms_allocator_clear_cache (self->allocator);
|
|
gst_kms_sink_show_frame (GST_VIDEO_SINK (self), NULL);
|
|
gst_buffer_unref (last_buf);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_kms_sink_query (GstBaseSink * bsink, GstQuery * query)
|
|
{
|
|
GstKMSSink *self = GST_KMS_SINK (bsink);
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_ALLOCATION:
|
|
case GST_QUERY_DRAIN:
|
|
{
|
|
gst_kms_sink_drain (self);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);
|
|
}
|
|
|
|
static void
|
|
gst_kms_sink_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstKMSSink *sink;
|
|
|
|
sink = GST_KMS_SINK (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_DRIVER_NAME:
|
|
g_free (sink->devname);
|
|
sink->devname = g_value_dup_string (value);
|
|
break;
|
|
case PROP_BUS_ID:
|
|
g_free (sink->bus_id);
|
|
sink->bus_id = g_value_dup_string (value);
|
|
break;
|
|
case PROP_CONNECTOR_ID:
|
|
sink->conn_id = g_value_get_int (value);
|
|
break;
|
|
case PROP_PLANE_ID:
|
|
sink->plane_id = g_value_get_int (value);
|
|
break;
|
|
case PROP_FORCE_MODESETTING:
|
|
sink->modesetting_enabled = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_RESTORE_CRTC:
|
|
sink->restore_crtc = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_CAN_SCALE:
|
|
sink->can_scale = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_CONNECTOR_PROPS:{
|
|
const GstStructure *s = gst_value_get_structure (value);
|
|
|
|
g_clear_pointer (&sink->connector_props, gst_structure_free);
|
|
|
|
if (s)
|
|
sink->connector_props = gst_structure_copy (s);
|
|
|
|
break;
|
|
}
|
|
case PROP_PLANE_PROPS:{
|
|
const GstStructure *s = gst_value_get_structure (value);
|
|
|
|
g_clear_pointer (&sink->plane_props, gst_structure_free);
|
|
|
|
if (s)
|
|
sink->plane_props = gst_structure_copy (s);
|
|
|
|
break;
|
|
}
|
|
default:
|
|
if (!gst_video_overlay_set_property (object, PROP_N, prop_id, value))
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_kms_sink_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstKMSSink *sink;
|
|
|
|
sink = GST_KMS_SINK (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_DRIVER_NAME:
|
|
g_value_set_string (value, sink->devname);
|
|
break;
|
|
case PROP_BUS_ID:
|
|
g_value_set_string (value, sink->bus_id);
|
|
break;
|
|
case PROP_CONNECTOR_ID:
|
|
g_value_set_int (value, sink->conn_id);
|
|
break;
|
|
case PROP_PLANE_ID:
|
|
g_value_set_int (value, sink->plane_id);
|
|
break;
|
|
case PROP_FORCE_MODESETTING:
|
|
g_value_set_boolean (value, sink->modesetting_enabled);
|
|
break;
|
|
case PROP_RESTORE_CRTC:
|
|
g_value_set_boolean (value, sink->restore_crtc);
|
|
break;
|
|
case PROP_CAN_SCALE:
|
|
g_value_set_boolean (value, sink->can_scale);
|
|
break;
|
|
case PROP_DISPLAY_WIDTH:
|
|
GST_OBJECT_LOCK (sink);
|
|
g_value_set_int (value, sink->hdisplay);
|
|
GST_OBJECT_UNLOCK (sink);
|
|
break;
|
|
case PROP_DISPLAY_HEIGHT:
|
|
GST_OBJECT_LOCK (sink);
|
|
g_value_set_int (value, sink->vdisplay);
|
|
GST_OBJECT_UNLOCK (sink);
|
|
break;
|
|
case PROP_CONNECTOR_PROPS:
|
|
gst_value_set_structure (value, sink->connector_props);
|
|
break;
|
|
case PROP_PLANE_PROPS:
|
|
gst_value_set_structure (value, sink->plane_props);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_kms_sink_finalize (GObject * object)
|
|
{
|
|
GstKMSSink *sink;
|
|
|
|
sink = GST_KMS_SINK (object);
|
|
g_clear_pointer (&sink->devname, g_free);
|
|
g_clear_pointer (&sink->bus_id, g_free);
|
|
gst_poll_free (sink->poll);
|
|
g_clear_pointer (&sink->connector_props, gst_structure_free);
|
|
g_clear_pointer (&sink->plane_props, gst_structure_free);
|
|
g_clear_pointer (&sink->tmp_kmsmem, gst_memory_unref);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gst_kms_sink_init (GstKMSSink * sink)
|
|
{
|
|
sink->fd = -1;
|
|
sink->conn_id = -1;
|
|
sink->plane_id = -1;
|
|
sink->can_scale = TRUE;
|
|
gst_poll_fd_init (&sink->pollfd);
|
|
sink->poll = gst_poll_new (TRUE);
|
|
gst_video_info_init (&sink->vinfo);
|
|
}
|
|
|
|
static void
|
|
gst_kms_sink_class_init (GstKMSSinkClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *element_class;
|
|
GstBaseSinkClass *basesink_class;
|
|
GstVideoSinkClass *videosink_class;
|
|
GstCaps *caps;
|
|
|
|
gobject_class = G_OBJECT_CLASS (klass);
|
|
element_class = GST_ELEMENT_CLASS (klass);
|
|
basesink_class = GST_BASE_SINK_CLASS (klass);
|
|
videosink_class = GST_VIDEO_SINK_CLASS (klass);
|
|
|
|
gst_element_class_set_static_metadata (element_class, "KMS video sink",
|
|
"Sink/Video", GST_PLUGIN_DESC, "Víctor Jáquez <vjaquez@igalia.com>");
|
|
|
|
caps = gst_kms_sink_caps_template_fill ();
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps));
|
|
gst_caps_unref (caps);
|
|
|
|
basesink_class->start = GST_DEBUG_FUNCPTR (gst_kms_sink_start);
|
|
basesink_class->stop = GST_DEBUG_FUNCPTR (gst_kms_sink_stop);
|
|
basesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_kms_sink_set_caps);
|
|
basesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_kms_sink_get_caps);
|
|
basesink_class->propose_allocation = gst_kms_sink_propose_allocation;
|
|
basesink_class->query = gst_kms_sink_query;
|
|
|
|
videosink_class->show_frame = gst_kms_sink_show_frame;
|
|
|
|
gobject_class->finalize = gst_kms_sink_finalize;
|
|
gobject_class->set_property = gst_kms_sink_set_property;
|
|
gobject_class->get_property = gst_kms_sink_get_property;
|
|
|
|
/**
|
|
* kmssink:driver-name:
|
|
*
|
|
* If you have a system with multiple GPUs, you can choose which GPU
|
|
* to use setting the DRM device driver name. Otherwise, the first
|
|
* one from an internal list is used.
|
|
*/
|
|
g_properties[PROP_DRIVER_NAME] = g_param_spec_string ("driver-name",
|
|
"device name", "DRM device driver name", NULL,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
|
|
|
|
/**
|
|
* kmssink:bus-id:
|
|
*
|
|
* If you have a system with multiple displays for the same driver-name,
|
|
* you can choose which display to use by setting the DRM bus ID. Otherwise,
|
|
* the driver decides which one.
|
|
*/
|
|
g_properties[PROP_BUS_ID] = g_param_spec_string ("bus-id",
|
|
"Bus ID", "DRM bus ID", NULL,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
|
|
|
|
/**
|
|
* kmssink:connector-id:
|
|
*
|
|
* A GPU has several output connectors, for example: LVDS, VGA,
|
|
* HDMI, etc. By default the first LVDS is tried, then the first
|
|
* eDP, and at the end, the first connected one.
|
|
*/
|
|
g_properties[PROP_CONNECTOR_ID] = g_param_spec_int ("connector-id",
|
|
"Connector ID", "DRM connector id", -1, G_MAXINT32, -1,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
|
|
|
|
/**
|
|
* kmssink:plane-id:
|
|
*
|
|
* There could be several planes associated with a CRTC.
|
|
* By default the first plane that's possible to use with a given
|
|
* CRTC is tried.
|
|
*/
|
|
g_properties[PROP_PLANE_ID] = g_param_spec_int ("plane-id",
|
|
"Plane ID", "DRM plane id", -1, G_MAXINT32, -1,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
|
|
|
|
/**
|
|
* kmssink:force-modesetting:
|
|
*
|
|
* If the output connector is already active, the sink automatically uses an
|
|
* overlay plane. Enforce mode setting in the kms sink and output to the
|
|
* base plane to override the automatic behavior.
|
|
*/
|
|
g_properties[PROP_FORCE_MODESETTING] =
|
|
g_param_spec_boolean ("force-modesetting", "Force modesetting",
|
|
"When enabled, the sink try to configure the display mode", FALSE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
|
|
|
|
/**
|
|
* kmssink:restore-crtc:
|
|
*
|
|
* Restore previous CRTC setting if new CRTC mode was set forcefully.
|
|
* By default this is enabled if user set CRTC with a new mode on an already
|
|
* active CRTC wich was having a valid mode.
|
|
*/
|
|
g_properties[PROP_RESTORE_CRTC] =
|
|
g_param_spec_boolean ("restore-crtc", "Restore CRTC mode",
|
|
"When enabled and CRTC was set with a new mode, previous CRTC mode will"
|
|
"be restored when going to NULL state.", TRUE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
|
|
|
|
/**
|
|
* kmssink:can-scale:
|
|
*
|
|
* User can tell kmssink if the driver can support scale.
|
|
*/
|
|
g_properties[PROP_CAN_SCALE] =
|
|
g_param_spec_boolean ("can-scale", "can scale",
|
|
"User can tell kmssink if the driver can support scale", TRUE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
|
|
|
|
/**
|
|
* kmssink:display-width
|
|
*
|
|
* Actual width of the display. This is read only and only available in
|
|
* PAUSED and PLAYING state. It's meant to be used with
|
|
* gst_video_overlay_set_render_rectangle() function.
|
|
*/
|
|
g_properties[PROP_DISPLAY_WIDTH] =
|
|
g_param_spec_int ("display-width", "Display Width",
|
|
"Width of the display surface in pixels", 0, G_MAXINT, 0,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
|
|
|
|
/**
|
|
* kmssink:display-height
|
|
*
|
|
* Actual height of the display. This is read only and only available in
|
|
* PAUSED and PLAYING state. It's meant to be used with
|
|
* gst_video_overlay_set_render_rectangle() function.
|
|
*/
|
|
g_properties[PROP_DISPLAY_HEIGHT] =
|
|
g_param_spec_int ("display-height", "Display Height",
|
|
"Height of the display surface in pixels", 0, G_MAXINT, 0,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
|
|
|
|
/**
|
|
* kmssink:connector-properties:
|
|
*
|
|
* Additional properties for the connector. Keys are strings and values
|
|
* unsigned 64 bits integers.
|
|
*
|
|
* Since: 1.16
|
|
*/
|
|
g_properties[PROP_CONNECTOR_PROPS] =
|
|
g_param_spec_boxed ("connector-properties", "Connector Properties",
|
|
"Additional properties for the connector",
|
|
GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
|
|
|
|
/**
|
|
* kmssink:plane-properties:
|
|
*
|
|
* Additional properties for the plane. Keys are strings and values
|
|
* unsigned 64 bits integers.
|
|
*
|
|
* Since: 1.16
|
|
*/
|
|
g_properties[PROP_PLANE_PROPS] =
|
|
g_param_spec_boxed ("plane-properties", "Connector Plane",
|
|
"Additional properties for the plane",
|
|
GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
|
|
|
|
g_object_class_install_properties (gobject_class, PROP_N, g_properties);
|
|
|
|
gst_video_overlay_install_properties (gobject_class, PROP_N);
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
if (!gst_element_register (plugin, GST_PLUGIN_NAME, GST_RANK_SECONDARY,
|
|
GST_TYPE_KMS_SINK))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, kms,
|
|
GST_PLUGIN_DESC, plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME,
|
|
GST_PACKAGE_ORIGIN)
|