mirror of
https://github.com/Rafostar/clapper.git
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21ccab1cc2
Previously Clapper showed last frame, now it defaults to black screen, so add an option for users to choose what they like better
96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
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* Copyright (C) 2015 Thibault Saunier <tsaunier@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <gst/gst.h>
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#include "gstgtkutils.h"
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struct invoke_context
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{
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GThreadFunc func;
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gpointer data;
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GMutex lock;
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GCond cond;
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gboolean fired;
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gpointer res;
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};
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static gboolean
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gst_gtk_invoke_func (struct invoke_context *info)
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{
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g_mutex_lock (&info->lock);
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info->res = info->func (info->data);
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info->fired = TRUE;
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g_cond_signal (&info->cond);
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g_mutex_unlock (&info->lock);
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return G_SOURCE_REMOVE;
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}
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gpointer
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gst_gtk_invoke_on_main (GThreadFunc func, gpointer data)
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{
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GMainContext *main_context = g_main_context_default ();
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struct invoke_context info;
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g_mutex_init (&info.lock);
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g_cond_init (&info.cond);
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info.fired = FALSE;
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info.func = func;
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info.data = data;
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g_main_context_invoke (main_context, (GSourceFunc) gst_gtk_invoke_func,
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&info);
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g_mutex_lock (&info.lock);
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while (!info.fired)
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g_cond_wait (&info.cond, &info.lock);
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g_mutex_unlock (&info.lock);
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g_mutex_clear (&info.lock);
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g_cond_clear (&info.cond);
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return info.res;
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}
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void
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gst_gtk_install_shared_properties (GObjectClass *gobject_class)
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{
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g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
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g_param_spec_boolean ("force-aspect-ratio",
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"Force aspect ratio",
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"When enabled, scaling will respect original aspect ratio",
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DEFAULT_FORCE_ASPECT_RATIO,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_PIXEL_ASPECT_RATIO,
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gst_param_spec_fraction ("pixel-aspect-ratio", "Pixel Aspect Ratio",
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"The pixel aspect ratio of the device", DEFAULT_PAR_N, DEFAULT_PAR_D,
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G_MAXINT, 1, 1, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class, PROP_KEEP_LAST_FRAME,
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g_param_spec_boolean ("keep-last-frame",
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"Keep last frame",
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"Keep showing last video frame after playback instead of black screen",
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DEFAULT_KEEP_LAST_FRAME,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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}
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