mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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321 lines
9.2 KiB
C
321 lines
9.2 KiB
C
/*
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* GStreamer
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* Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <gst/gst.h>
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#include "gstvdpdevice.h"
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GST_DEBUG_CATEGORY_STATIC (gst_vdp_device_debug);
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#define GST_CAT_DEFAULT gst_vdp_device_debug
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enum
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{
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PROP_0,
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PROP_DISPLAY
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};
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G_DEFINE_TYPE (GstVdpDevice, gst_vdp_device, G_TYPE_OBJECT);
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static void
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gst_vdp_device_init (GstVdpDevice * device)
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{
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device->display_name = NULL;
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device->display = NULL;
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device->device = VDP_INVALID_HANDLE;
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device->constructed = FALSE;
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}
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static void
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gst_vdp_device_finalize (GObject * object)
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{
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GstVdpDevice *device = (GstVdpDevice *) object;
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if (device->device != VDP_INVALID_HANDLE) {
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device->vdp_device_destroy (device->device);
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device->device = VDP_INVALID_HANDLE;
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}
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if (device->display) {
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XCloseDisplay (device->display);
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device->display = NULL;
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}
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g_free (device->display_name);
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device->display_name = NULL;
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G_OBJECT_CLASS (gst_vdp_device_parent_class)->finalize (object);
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}
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static void
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gst_vdp_device_constructed (GObject * object)
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{
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GstVdpDevice *device = (GstVdpDevice *) object;
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gint screen;
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VdpStatus status;
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gint i;
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typedef struct
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{
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gint id;
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void *func;
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} VdpFunction;
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VdpFunction vdp_function[] = {
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{VDP_FUNC_ID_DEVICE_DESTROY, &device->vdp_device_destroy},
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{VDP_FUNC_ID_VIDEO_SURFACE_CREATE,
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&device->vdp_video_surface_create},
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{VDP_FUNC_ID_VIDEO_SURFACE_DESTROY,
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&device->vdp_video_surface_destroy},
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{VDP_FUNC_ID_VIDEO_SURFACE_QUERY_CAPABILITIES,
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&device->vdp_video_surface_query_capabilities},
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{VDP_FUNC_ID_VIDEO_SURFACE_QUERY_GET_PUT_BITS_Y_CB_CR_CAPABILITIES,
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&device->vdp_video_surface_query_ycbcr_capabilities},
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{VDP_FUNC_ID_VIDEO_SURFACE_GET_BITS_Y_CB_CR,
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&device->vdp_video_surface_get_bits_ycbcr},
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{VDP_FUNC_ID_VIDEO_SURFACE_PUT_BITS_Y_CB_CR,
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&device->vdp_video_surface_put_bits_ycbcr},
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{VDP_FUNC_ID_VIDEO_SURFACE_GET_PARAMETERS,
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&device->vdp_video_surface_get_parameters},
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{VDP_FUNC_ID_DECODER_CREATE, &device->vdp_decoder_create},
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{VDP_FUNC_ID_DECODER_RENDER, &device->vdp_decoder_render},
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{VDP_FUNC_ID_DECODER_DESTROY, &device->vdp_decoder_destroy},
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{VDP_FUNC_ID_DECODER_QUERY_CAPABILITIES,
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&device->vdp_decoder_query_capabilities},
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{VDP_FUNC_ID_DECODER_GET_PARAMETERS,
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&device->vdp_decoder_get_parameters},
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{VDP_FUNC_ID_VIDEO_MIXER_CREATE, &device->vdp_video_mixer_create},
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{VDP_FUNC_ID_VIDEO_MIXER_DESTROY, &device->vdp_video_mixer_destroy},
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{VDP_FUNC_ID_VIDEO_MIXER_RENDER, &device->vdp_video_mixer_render},
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{VDP_FUNC_ID_VIDEO_MIXER_SET_FEATURE_ENABLES,
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&device->vdp_video_mixer_set_feature_enables},
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{VDP_FUNC_ID_VIDEO_MIXER_SET_ATTRIBUTE_VALUES,
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&device->vdp_video_mixer_set_attribute_values},
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{VDP_FUNC_ID_OUTPUT_SURFACE_CREATE, &device->vdp_output_surface_create},
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{VDP_FUNC_ID_OUTPUT_SURFACE_DESTROY, &device->vdp_output_surface_destroy},
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{VDP_FUNC_ID_OUTPUT_SURFACE_QUERY_CAPABILITIES,
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&device->vdp_output_surface_query_capabilities},
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{VDP_FUNC_ID_PRESENTATION_QUEUE_TARGET_CREATE_X11,
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&device->vdp_presentation_queue_target_create_x11},
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{VDP_FUNC_ID_PRESENTATION_QUEUE_CREATE,
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&device->vdp_presentation_queue_create},
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{VDP_FUNC_ID_PRESENTATION_QUEUE_DESTROY,
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&device->vdp_presentation_queue_destroy},
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{VDP_FUNC_ID_PRESENTATION_QUEUE_DISPLAY,
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&device->vdp_presentation_queue_display},
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{VDP_FUNC_ID_PRESENTATION_QUEUE_BLOCK_UNTIL_SURFACE_IDLE,
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&device->vdp_presentation_queue_block_until_surface_idle},
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{VDP_FUNC_ID_PRESENTATION_QUEUE_SET_BACKGROUND_COLOR,
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&device->vdp_presentation_queue_set_background_color}
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};
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device->display = XOpenDisplay (device->display_name);
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if (!device->display) {
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GST_ERROR_OBJECT (device, "Could not open X display with name: %s",
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device->display_name);
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return;
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}
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screen = DefaultScreen (device->display);
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status =
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vdp_device_create_x11 (device->display, screen, &device->device,
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&device->vdp_get_proc_address);
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if (status != VDP_STATUS_OK) {
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GST_ERROR_OBJECT (device, "Could not create VDPAU device");
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XCloseDisplay (device->display);
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device->display = NULL;
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return;
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}
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status = device->vdp_get_proc_address (device->device,
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VDP_FUNC_ID_GET_ERROR_STRING, (void **) &device->vdp_get_error_string);
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if (status != VDP_STATUS_OK) {
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GST_ERROR_OBJECT (device,
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"Could not get vdp_get_error_string function pointer from VDPAU");
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goto error;
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}
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for (i = 0; i < G_N_ELEMENTS (vdp_function); i++) {
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status = device->vdp_get_proc_address (device->device,
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vdp_function[i].id, vdp_function[i].func);
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if (status != VDP_STATUS_OK) {
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GST_ERROR_OBJECT (device, "Could not get function pointer from VDPAU,"
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" error returned was: %s", device->vdp_get_error_string (status));
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goto error;
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}
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}
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device->constructed = TRUE;
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return;
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error:
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XCloseDisplay (device->display);
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device->display = NULL;
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if (device->device != VDP_INVALID_HANDLE) {
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device->vdp_device_destroy (device->device);
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device->device = VDP_INVALID_HANDLE;
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}
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}
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static void
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gst_vdp_device_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstVdpDevice *device;
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g_return_if_fail (GST_IS_VDP_DEVICE (object));
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device = (GstVdpDevice *) object;
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switch (prop_id) {
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case PROP_DISPLAY:
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device->display_name = g_value_dup_string (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_vdp_device_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstVdpDevice *device;
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g_return_if_fail (GST_IS_VDP_DEVICE (object));
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device = (GstVdpDevice *) object;
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switch (prop_id) {
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case PROP_DISPLAY:
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g_value_set_string (value, device->display_name);
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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_vdp_device_class_init (GstVdpDeviceClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->constructed = gst_vdp_device_constructed;
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object_class->finalize = gst_vdp_device_finalize;
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object_class->get_property = gst_vdp_device_get_property;
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object_class->set_property = gst_vdp_device_set_property;
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g_object_class_install_property (object_class,
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PROP_DISPLAY,
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g_param_spec_string ("display",
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"Display",
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"X Display Name",
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"", G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
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}
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GstVdpDevice *
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gst_vdp_device_new (const gchar * display_name)
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{
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GstVdpDevice *device;
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device = g_object_new (GST_TYPE_VDP_DEVICE, "display", display_name, NULL);
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if (!device->constructed) {
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g_object_unref (device);
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return NULL;
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}
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return device;
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}
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typedef struct
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{
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GHashTable *hash_table;
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GMutex *mutex;
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} GstVdpDeviceCache;
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static void
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device_destroyed_cb (gpointer data, GObject * object)
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{
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GstVdpDeviceCache *device_cache = data;
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GHashTableIter iter;
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gpointer device;
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GST_DEBUG ("Removing object from hash table");
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g_mutex_lock (device_cache->mutex);
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g_hash_table_iter_init (&iter, device_cache->hash_table);
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while (g_hash_table_iter_next (&iter, NULL, &device)) {
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if (device == object) {
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g_hash_table_iter_remove (&iter);
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break;
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}
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}
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g_mutex_unlock (device_cache->mutex);
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}
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GstVdpDevice *
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gst_vdp_get_device (const gchar * display_name)
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{
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static gsize once = 0;
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static GstVdpDeviceCache device_cache;
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GstVdpDevice *device;
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if (g_once_init_enter (&once)) {
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GST_DEBUG_CATEGORY_INIT (gst_vdp_device_debug, "vdpaudevice",
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0, "vdpaudevice");
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device_cache.hash_table =
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g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
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device_cache.mutex = g_mutex_new ();
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g_once_init_leave (&once, 1);
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}
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g_mutex_lock (device_cache.mutex);
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if (display_name)
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device = g_hash_table_lookup (device_cache.hash_table, display_name);
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else
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device = g_hash_table_lookup (device_cache.hash_table, "");
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if (!device) {
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device = gst_vdp_device_new (display_name);
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if (device) {
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g_object_weak_ref (G_OBJECT (device), device_destroyed_cb, &device_cache);
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if (display_name)
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g_hash_table_insert (device_cache.hash_table, g_strdup (display_name),
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device);
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else
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g_hash_table_insert (device_cache.hash_table, g_strdup (""), device);
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}
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} else
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g_object_ref (device);
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g_mutex_unlock (device_cache.mutex);
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return device;
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}
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