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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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287 lines
7.9 KiB
C
287 lines
7.9 KiB
C
/*
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* gstvaapisubpicture.c - VA subpicture abstraction
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*
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* gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* SECTION:gst-vaapi-subpicture
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* @short_description:
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*/
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#include "config.h"
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#include <string.h>
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#include "gstvaapiutils.h"
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#include "gstvaapisubpicture.h"
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#include <va/va_backend.h>
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#define DEBUG 1
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#include "gstvaapidebug.h"
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G_DEFINE_TYPE(GstVaapiSubpicture, gst_vaapi_subpicture, G_TYPE_OBJECT);
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#define GST_VAAPI_SUBPICTURE_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE((obj), \
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GST_VAAPI_TYPE_SUBPICTURE, \
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GstVaapiSubpicturePrivate))
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struct _GstVaapiSubpicturePrivate {
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VASubpictureID subpicture_id;
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GstVaapiImage *image;
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};
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enum {
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PROP_0,
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PROP_SUBPICTURE_ID,
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PROP_IMAGE
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};
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static void
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gst_vaapi_subpicture_destroy(GstVaapiSubpicture *subpicture)
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{
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GstVaapiSubpicturePrivate * const priv = subpicture->priv;
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GstVaapiDisplay *display;
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VAStatus status;
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if (priv->subpicture_id != VA_INVALID_ID) {
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display = gst_vaapi_image_get_display(priv->image);
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if (display) {
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GST_VAAPI_DISPLAY_LOCK(display);
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status = vaDestroySubpicture(
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GST_VAAPI_DISPLAY_VADISPLAY(display),
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priv->subpicture_id
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);
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GST_VAAPI_DISPLAY_UNLOCK(display);
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if (!vaapi_check_status(status, "vaDestroySubpicture()"))
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g_warning("failed to destroy subpicture 0x%08x\n",
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priv->subpicture_id);
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}
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priv->subpicture_id = VA_INVALID_ID;
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}
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if (priv->image) {
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g_object_unref(priv->image);
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priv->image = NULL;
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}
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}
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static gboolean
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gst_vaapi_subpicture_create(GstVaapiSubpicture *subpicture)
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{
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GstVaapiSubpicturePrivate * const priv = subpicture->priv;
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GstVaapiDisplay *display;
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VASubpictureID subpicture_id;
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VAStatus status;
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if (!priv->image)
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return FALSE;
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display = gst_vaapi_image_get_display(priv->image);
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if (!display)
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return FALSE;
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GST_VAAPI_DISPLAY_LOCK(display);
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status = vaCreateSubpicture(
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GST_VAAPI_DISPLAY_VADISPLAY(display),
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gst_vaapi_image_get_id(priv->image),
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&subpicture_id
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);
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GST_VAAPI_DISPLAY_UNLOCK(display);
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if (!vaapi_check_status(status, "vaCreateSubpicture()"))
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return FALSE;
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priv->subpicture_id = subpicture_id;
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return TRUE;
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}
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static void
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gst_vaapi_subpicture_finalize(GObject *object)
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{
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gst_vaapi_subpicture_destroy(GST_VAAPI_SUBPICTURE(object));
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G_OBJECT_CLASS(gst_vaapi_subpicture_parent_class)->finalize(object);
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}
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static void
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gst_vaapi_subpicture_set_property(
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GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec
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)
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{
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GstVaapiSubpicture * const subpicture = GST_VAAPI_SUBPICTURE(object);
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switch (prop_id) {
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case PROP_IMAGE:
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gst_vaapi_subpicture_set_image(subpicture, g_value_get_object(value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vaapi_subpicture_get_property(
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GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec
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)
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{
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GstVaapiSubpicture * const subpicture = GST_VAAPI_SUBPICTURE(object);
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switch (prop_id) {
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case PROP_SUBPICTURE_ID:
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g_value_set_uint(value, gst_vaapi_subpicture_get_id(subpicture));
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break;
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case PROP_IMAGE:
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g_value_set_object(value, gst_vaapi_subpicture_get_image(subpicture));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_vaapi_subpicture_class_init(GstVaapiSubpictureClass *klass)
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{
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GObjectClass * const object_class = G_OBJECT_CLASS(klass);
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g_type_class_add_private(klass, sizeof(GstVaapiSubpicturePrivate));
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object_class->finalize = gst_vaapi_subpicture_finalize;
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object_class->set_property = gst_vaapi_subpicture_set_property;
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object_class->get_property = gst_vaapi_subpicture_get_property;
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/**
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* GstVaapiSubpicture:id:
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*
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* The underlying #VASubpictureID of the subpicture.
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*/
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g_object_class_install_property
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(object_class,
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PROP_SUBPICTURE_ID,
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g_param_spec_uint("id",
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"VA subpicture id",
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"The underlying VA subpicture id",
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0, G_MAXUINT32, VA_INVALID_ID,
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G_PARAM_READABLE));
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/**
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* GstVaapiSubpicture:image:
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*
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* The #GstVaapiImage this subpicture is bound to.
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*/
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g_object_class_install_property
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(object_class,
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PROP_IMAGE,
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g_param_spec_object("image",
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"Image",
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"The GstVaapiImage this subpicture is bound to",
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GST_VAAPI_TYPE_IMAGE,
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G_PARAM_READWRITE));
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}
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static void
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gst_vaapi_subpicture_init(GstVaapiSubpicture *subpicture)
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{
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GstVaapiSubpicturePrivate *priv = GST_VAAPI_SUBPICTURE_GET_PRIVATE(subpicture);
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subpicture->priv = priv;
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priv->subpicture_id = VA_INVALID_ID;
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priv->image = NULL;
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}
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/**
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* gst_vaapi_subpicture_new:
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* @image: a #GstVaapiImage
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*
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* Creates a new #GstVaapiSubpicture with @image as source pixels. The
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* newly created object holds a reference on @image.
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*
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* Return value: the newly allocated #GstVaapiSubpicture object
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*/
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GstVaapiSubpicture *
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gst_vaapi_subpicture_new(GstVaapiImage *image)
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{
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g_return_val_if_fail(GST_VAAPI_IS_IMAGE(image), NULL);
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GST_DEBUG("image 0x%08x", gst_vaapi_image_get_id(image));
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return g_object_new(GST_VAAPI_TYPE_SUBPICTURE,
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"image", image,
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NULL);
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}
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/**
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* gst_vaapi_subpicture_get_id:
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* @subpicture: a #GstVaapiSubpicture
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*
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* Returns the underlying VASubpictureID of the @subpicture.
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*
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* Return value: the underlying VA subpicture id
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*/
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VASubpictureID
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gst_vaapi_subpicture_get_id(GstVaapiSubpicture *subpicture)
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{
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g_return_val_if_fail(GST_VAAPI_IS_SUBPICTURE(subpicture), VA_INVALID_ID);
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return subpicture->priv->subpicture_id;
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}
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/**
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* gst_vaapi_subpicture_get_image:
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* @subpicture: a #GstVaapiSubpicture
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*
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* Returns the #GstVaapiImage this @subpicture is bound to.
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*
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* Return value: the #GstVaapiImage this @subpicture is bound to
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*/
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GstVaapiImage *
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gst_vaapi_subpicture_get_image(GstVaapiSubpicture *subpicture)
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{
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g_return_val_if_fail(GST_VAAPI_IS_SUBPICTURE(subpicture), NULL);
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return subpicture->priv->image;
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}
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/**
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* gst_vaapi_subpicture_set_image:
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* @subpicture: a #GstVaapiSubpicture
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* @image: a #GstVaapiImage
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*
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* Binds a new #GstVaapiImage to the @subpicture. The reference to the
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* previous image is released a new one acquired on @image.
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*/
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void
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gst_vaapi_subpicture_set_image(
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GstVaapiSubpicture *subpicture,
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GstVaapiImage *image
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)
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{
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g_return_if_fail(GST_VAAPI_IS_SUBPICTURE(subpicture));
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g_return_if_fail(GST_VAAPI_IS_IMAGE(image));
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gst_vaapi_subpicture_destroy(subpicture);
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subpicture->priv->image = g_object_ref(image);
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gst_vaapi_subpicture_create(subpicture);
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}
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