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729 lines
23 KiB
C
729 lines
23 KiB
C
/*
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* Copyright 2009 Nokia Corporation <multimedia@maemo.org>
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* 2006 Zeeshan Ali <zeeshan.ali@nokia.com>.
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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 Lesser 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 Lesser 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 St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:element-fpsdisplaysink
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* @title: fpsdisplaysink
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*
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* Can display the current and average framerate as a testoverlay or on stdout.
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*
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* ## Example launch lines
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* |[
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* gst-launch-1.0 videotestsrc ! fpsdisplaysink
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* gst-launch-1.0 videotestsrc ! fpsdisplaysink text-overlay=false
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* gst-launch-1.0 filesrc location=video.avi ! decodebin name=d ! queue ! fpsdisplaysink d. ! queue ! fakesink sync=true
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* gst-launch-1.0 playbin uri=file:///path/to/video.avi video-sink="fpsdisplaysink" audio-sink=fakesink
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* ]|
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*
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*/
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/* FIXME:
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* - can we avoid plugging the textoverlay?
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* - gst-seek 15 "videotestsrc ! fpsdisplaysink" dies when closing gst-seek
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*
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* NOTE:
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* - if we make ourself RANK_PRIMARY+10 or something that autovideosink would
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* select and fpsdisplaysink is set to use autovideosink as its internal sink
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* it doesn't work. Reason: autovideosink creates a fpsdisplaysink, that
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* creates an autovideosink, that...
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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 "gstdebugutilsbadelements.h"
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#include "fpsdisplaysink.h"
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#define DEFAULT_SIGNAL_FPS_MEASUREMENTS FALSE
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#define DEFAULT_FPS_UPDATE_INTERVAL_MS 500 /* 500 ms */
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#define DEFAULT_FONT "Sans 15"
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#define DEFAULT_SILENT FALSE
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#define DEFAULT_LAST_MESSAGE NULL
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/* generic templates */
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static GstStaticPadTemplate fps_display_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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GST_DEBUG_CATEGORY_STATIC (fps_display_sink_debug);
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#define GST_CAT_DEFAULT fps_display_sink_debug
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#define DEFAULT_SYNC TRUE
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enum
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{
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/* FILL ME */
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SIGNAL_FPS_MEASUREMENTS,
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_SYNC,
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PROP_TEXT_OVERLAY,
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PROP_VIDEO_SINK,
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PROP_FPS_UPDATE_INTERVAL,
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PROP_MAX_FPS,
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PROP_MIN_FPS,
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PROP_SIGNAL_FPS_MEASUREMENTS,
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PROP_FRAMES_DROPPED,
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PROP_FRAMES_RENDERED,
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PROP_SILENT,
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PROP_LAST_MESSAGE
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/* FILL ME */
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};
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static GstBinClass *parent_class = NULL;
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static GstStateChangeReturn fps_display_sink_change_state (GstElement * element,
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GstStateChange transition);
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static void fps_display_sink_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void fps_display_sink_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void fps_display_sink_dispose (GObject * object);
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static void fps_display_sink_handle_message (GstBin * bin,
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GstMessage * message);
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static gboolean display_current_fps (gpointer data);
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static guint fpsdisplaysink_signals[LAST_SIGNAL] = { 0 };
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static GParamSpec *pspec_last_message = NULL;
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static void
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fps_display_sink_class_init (GstFPSDisplaySinkClass * klass)
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{
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GObjectClass *gobject_klass = G_OBJECT_CLASS (klass);
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GstElementClass *gstelement_klass = GST_ELEMENT_CLASS (klass);
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GstBinClass *bin_class = GST_BIN_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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gobject_klass->set_property = fps_display_sink_set_property;
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gobject_klass->get_property = fps_display_sink_get_property;
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gobject_klass->dispose = fps_display_sink_dispose;
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bin_class->handle_message = fps_display_sink_handle_message;
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g_object_class_install_property (gobject_klass, PROP_SYNC,
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g_param_spec_boolean ("sync",
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"Sync", "Sync on the clock (if the internally used sink doesn't "
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"have this property it will be ignored", DEFAULT_SYNC,
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G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
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g_object_class_install_property (gobject_klass, PROP_TEXT_OVERLAY,
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g_param_spec_boolean ("text-overlay",
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"text-overlay",
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"Whether to use text-overlay", TRUE,
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G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
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g_object_class_install_property (gobject_klass, PROP_VIDEO_SINK,
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g_param_spec_object ("video-sink",
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"video-sink",
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"Video sink to use (Must only be called on NULL state)",
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GST_TYPE_ELEMENT, G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
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g_object_class_install_property (gobject_klass, PROP_FPS_UPDATE_INTERVAL,
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g_param_spec_int ("fps-update-interval", "Fps update interval",
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"Time between consecutive frames per second measures and update "
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" (in ms). Should be set on NULL state", 1, G_MAXINT,
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DEFAULT_FPS_UPDATE_INTERVAL_MS,
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G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
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g_object_class_install_property (gobject_klass, PROP_MAX_FPS,
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g_param_spec_double ("max-fps", "Max fps",
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"Maximum fps rate measured. Reset when going from NULL to READY."
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"-1 means no measurement has yet been done", -1, G_MAXDOUBLE, -1,
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G_PARAM_STATIC_STRINGS | G_PARAM_READABLE));
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g_object_class_install_property (gobject_klass, PROP_MIN_FPS,
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g_param_spec_double ("min-fps", "Min fps",
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"Minimum fps rate measured. Reset when going from NULL to READY."
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"-1 means no measurement has yet been done", -1, G_MAXDOUBLE, -1,
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G_PARAM_STATIC_STRINGS | G_PARAM_READABLE));
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g_object_class_install_property (gobject_klass, PROP_FRAMES_DROPPED,
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g_param_spec_uint ("frames-dropped", "dropped frames",
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"Number of frames dropped by the sink", 0, G_MAXUINT, 0,
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G_PARAM_STATIC_STRINGS | G_PARAM_READABLE));
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g_object_class_install_property (gobject_klass, PROP_FRAMES_RENDERED,
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g_param_spec_uint ("frames-rendered", "rendered frames",
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"Number of frames rendered", 0, G_MAXUINT, 0,
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G_PARAM_STATIC_STRINGS | G_PARAM_READABLE));
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g_object_class_install_property (gobject_klass, PROP_SILENT,
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g_param_spec_boolean ("silent", "enable stdout output",
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"Don't produce last_message events", DEFAULT_SILENT,
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G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
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g_object_class_install_property (gobject_klass, PROP_SIGNAL_FPS_MEASUREMENTS,
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g_param_spec_boolean ("signal-fps-measurements",
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"Signal fps measurements",
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"If the fps-measurements signal should be emitted.",
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DEFAULT_SIGNAL_FPS_MEASUREMENTS,
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G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE));
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pspec_last_message = g_param_spec_string ("last-message", "Last Message",
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"The message describing current status", DEFAULT_LAST_MESSAGE,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
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g_object_class_install_property (gobject_klass, PROP_LAST_MESSAGE,
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pspec_last_message);
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/**
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* GstFPSDisplaySink::fps-measurements:
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* @fpsdisplaysink: a #GstFPSDisplaySink
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* @fps: The current measured fps
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* @droprate: The rate at which buffers are being dropped
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* @avgfps: The average fps
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*
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* Signals the application about the measured fps
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*/
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fpsdisplaysink_signals[SIGNAL_FPS_MEASUREMENTS] =
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g_signal_new ("fps-measurements", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
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G_TYPE_NONE, 3, G_TYPE_DOUBLE, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
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gstelement_klass->change_state = fps_display_sink_change_state;
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gst_element_class_add_static_pad_template (gstelement_klass,
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&fps_display_sink_template);
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gst_element_class_set_static_metadata (gstelement_klass,
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"Measure and show framerate on videosink", "Sink/Video",
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"Shows the current frame-rate and drop-rate of the videosink as overlay or text on stdout",
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"Zeeshan Ali <zeeshan.ali@nokia.com>, Stefan Kost <stefan.kost@nokia.com>");
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}
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static GstPadProbeReturn
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on_video_sink_data_flow (GstPad * pad, GstPadProbeInfo * info,
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gpointer user_data)
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{
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GstMiniObject *mini_obj = GST_PAD_PROBE_INFO_DATA (info);
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GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (user_data);
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if (GST_IS_BUFFER (mini_obj)) {
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GstClockTime ts;
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/* assume the frame is going to be rendered. If it isnt', we'll get a qos
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* message and reset ->frames_rendered from there.
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*/
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g_atomic_int_inc (&self->frames_rendered);
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ts = gst_util_get_timestamp ();
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if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (self->start_ts))) {
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self->interval_ts = self->last_ts = self->start_ts = ts;
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}
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if (GST_CLOCK_DIFF (self->interval_ts, ts) > self->fps_update_interval) {
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display_current_fps (self);
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self->interval_ts = ts;
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}
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}
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return GST_PAD_PROBE_OK;
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}
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static void
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update_sub_sync (GstElement * sink, gpointer data)
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{
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/* Some sinks (like autovideosink) don't have the sync property so
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* we check it exists before setting it to avoid a warning at
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* runtime. */
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if (g_object_class_find_property (G_OBJECT_GET_CLASS (sink), "sync"))
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g_object_set (sink, "sync", *((gboolean *) data), NULL);
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else
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GST_WARNING ("Internal sink doesn't have sync property");
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}
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static void
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update_sub_sync_foreach (const GValue * item, gpointer data)
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{
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GstElement *sink = g_value_get_object (item);
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update_sub_sync (sink, data);
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}
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static void
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fps_display_sink_update_sink_sync (GstFPSDisplaySink * self)
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{
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GstIterator *iterator;
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if (self->video_sink == NULL)
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return;
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if (GST_IS_BIN (self->video_sink)) {
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iterator = gst_bin_iterate_sinks (GST_BIN (self->video_sink));
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gst_iterator_foreach (iterator,
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(GstIteratorForeachFunction) update_sub_sync_foreach,
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(void *) &self->sync);
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gst_iterator_free (iterator);
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} else
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update_sub_sync (self->video_sink, (void *) &self->sync);
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}
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static void
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update_video_sink (GstFPSDisplaySink * self, GstElement * video_sink)
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{
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GstPad *sink_pad;
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if (self->video_sink) {
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/* remove pad probe */
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sink_pad = gst_element_get_static_pad (self->video_sink, "sink");
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gst_pad_remove_probe (sink_pad, self->data_probe_id);
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gst_object_unref (sink_pad);
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self->data_probe_id = -1;
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/* remove ghost pad target */
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gst_ghost_pad_set_target (GST_GHOST_PAD (self->ghost_pad), NULL);
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/* remove old sink */
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gst_bin_remove (GST_BIN (self), self->video_sink);
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gst_object_unref (self->video_sink);
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}
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/* create child elements */
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self->video_sink = video_sink;
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if (self->video_sink == NULL)
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return;
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fps_display_sink_update_sink_sync (self);
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/* take a ref before bin takes the ownership */
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gst_object_ref (self->video_sink);
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gst_bin_add (GST_BIN (self), self->video_sink);
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/* attach or pad probe */
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sink_pad = gst_element_get_static_pad (self->video_sink, "sink");
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self->data_probe_id = gst_pad_add_probe (sink_pad,
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GST_PAD_PROBE_TYPE_DATA_BOTH, on_video_sink_data_flow,
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(gpointer) self, NULL);
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gst_object_unref (sink_pad);
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}
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static void
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fps_display_sink_init (GstFPSDisplaySink * self,
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GstFPSDisplaySinkClass * g_class)
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{
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self->sync = DEFAULT_SYNC;
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self->signal_measurements = DEFAULT_SIGNAL_FPS_MEASUREMENTS;
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self->use_text_overlay = TRUE;
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self->fps_update_interval = GST_MSECOND * DEFAULT_FPS_UPDATE_INTERVAL_MS;
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self->video_sink = NULL;
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self->max_fps = -1;
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self->min_fps = -1;
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self->silent = DEFAULT_SILENT;
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self->last_message = g_strdup (DEFAULT_LAST_MESSAGE);
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self->ghost_pad = gst_ghost_pad_new_no_target ("sink", GST_PAD_SINK);
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gst_element_add_pad (GST_ELEMENT (self), self->ghost_pad);
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}
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static gboolean
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display_current_fps (gpointer data)
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{
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GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (data);
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guint64 frames_rendered, frames_dropped;
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gdouble rr, dr, average_fps;
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gchar fps_message[256];
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gdouble time_diff, time_elapsed;
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GstClockTime current_ts = gst_util_get_timestamp ();
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frames_rendered = g_atomic_int_get (&self->frames_rendered);
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frames_dropped = g_atomic_int_get (&self->frames_dropped);
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if ((frames_rendered + frames_dropped) == 0) {
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/* in case timer fired and we didn't yet get any QOS events */
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return TRUE;
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}
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time_diff = (gdouble) (current_ts - self->last_ts) / GST_SECOND;
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time_elapsed = (gdouble) (current_ts - self->start_ts) / GST_SECOND;
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rr = (gdouble) (frames_rendered - self->last_frames_rendered) / time_diff;
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dr = (gdouble) (frames_dropped - self->last_frames_dropped) / time_diff;
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average_fps = (gdouble) frames_rendered / time_elapsed;
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if (self->max_fps == -1 || rr > self->max_fps) {
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self->max_fps = rr;
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GST_DEBUG_OBJECT (self, "Updated max-fps to %f", rr);
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}
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if (self->min_fps == -1 || rr < self->min_fps) {
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self->min_fps = rr;
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GST_DEBUG_OBJECT (self, "Updated min-fps to %f", rr);
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}
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if (self->signal_measurements) {
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GST_LOG_OBJECT (self, "Signaling measurements: fps:%f droprate:%f "
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"avg-fps:%f", rr, dr, average_fps);
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g_signal_emit (G_OBJECT (self),
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fpsdisplaysink_signals[SIGNAL_FPS_MEASUREMENTS], 0, rr, dr,
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average_fps);
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}
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/* Display on a single line to make it easier to read and import
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* into, for example, excel.. note: it would be nice to show
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* timestamp too.. need to check if there is a sane way to log
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* timestamp of last rendered buffer, so we could correlate dips
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* in framerate to certain positions in the stream.
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*/
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if (dr == 0.0) {
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g_snprintf (fps_message, 255,
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"rendered: %" G_GUINT64_FORMAT ", dropped: %" G_GUINT64_FORMAT
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", current: %.2f, average: %.2f", frames_rendered, frames_dropped, rr,
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average_fps);
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} else {
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g_snprintf (fps_message, 255,
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"rendered: %" G_GUINT64_FORMAT ", dropped: %" G_GUINT64_FORMAT
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", fps: %.2f, drop rate: %.2f", frames_rendered, frames_dropped, rr,
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dr);
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}
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if (self->use_text_overlay) {
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g_object_set (self->text_overlay, "text", fps_message, NULL);
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}
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if (!self->silent) {
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GST_OBJECT_LOCK (self);
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g_free (self->last_message);
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self->last_message = g_strdup (fps_message);
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GST_OBJECT_UNLOCK (self);
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g_object_notify_by_pspec ((GObject *) self, pspec_last_message);
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}
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self->last_frames_rendered = frames_rendered;
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self->last_frames_dropped = frames_dropped;
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self->last_ts = current_ts;
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return TRUE;
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}
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static void
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fps_display_sink_start (GstFPSDisplaySink * self)
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{
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GstPad *target_pad = NULL;
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/* Init counters */
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self->frames_rendered = 0;
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self->frames_dropped = 0;
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self->last_frames_rendered = G_GUINT64_CONSTANT (0);
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self->last_frames_dropped = G_GUINT64_CONSTANT (0);
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self->max_fps = -1;
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self->min_fps = -1;
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/* init time stamps */
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self->last_ts = self->start_ts = self->interval_ts = GST_CLOCK_TIME_NONE;
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GST_DEBUG_OBJECT (self, "Use text-overlay? %d", self->use_text_overlay);
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if (self->use_text_overlay) {
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if (!self->text_overlay) {
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self->text_overlay =
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gst_element_factory_make ("textoverlay", "fps-display-text-overlay");
|
|
if (!self->text_overlay) {
|
|
GST_WARNING_OBJECT (self, "text-overlay element could not be created");
|
|
self->use_text_overlay = FALSE;
|
|
goto no_text_overlay;
|
|
}
|
|
gst_object_ref (self->text_overlay);
|
|
g_object_set (self->text_overlay,
|
|
"font-desc", DEFAULT_FONT, "silent", FALSE, NULL);
|
|
gst_bin_add (GST_BIN (self), self->text_overlay);
|
|
|
|
if (!gst_element_link (self->text_overlay, self->video_sink)) {
|
|
GST_ERROR_OBJECT (self, "Could not link elements");
|
|
}
|
|
}
|
|
target_pad = gst_element_get_static_pad (self->text_overlay, "video_sink");
|
|
}
|
|
no_text_overlay:
|
|
if (!self->use_text_overlay) {
|
|
if (self->text_overlay) {
|
|
gst_element_unlink (self->text_overlay, self->video_sink);
|
|
gst_bin_remove (GST_BIN (self), self->text_overlay);
|
|
self->text_overlay = NULL;
|
|
}
|
|
target_pad = gst_element_get_static_pad (self->video_sink, "sink");
|
|
}
|
|
gst_ghost_pad_set_target (GST_GHOST_PAD (self->ghost_pad), target_pad);
|
|
gst_object_unref (target_pad);
|
|
}
|
|
|
|
static void
|
|
fps_display_sink_stop (GstFPSDisplaySink * self)
|
|
{
|
|
if (self->text_overlay) {
|
|
gst_element_unlink (self->text_overlay, self->video_sink);
|
|
gst_bin_remove (GST_BIN (self), self->text_overlay);
|
|
gst_object_unref (self->text_overlay);
|
|
self->text_overlay = NULL;
|
|
}
|
|
|
|
if (!self->silent) {
|
|
gchar *str;
|
|
|
|
/* print the max and minimum fps values */
|
|
str =
|
|
g_strdup_printf ("Max-fps: %0.2f, Min-fps: %0.2f", self->max_fps,
|
|
self->min_fps);
|
|
GST_OBJECT_LOCK (self);
|
|
g_free (self->last_message);
|
|
self->last_message = str;
|
|
GST_OBJECT_UNLOCK (self);
|
|
g_object_notify_by_pspec ((GObject *) self, pspec_last_message);
|
|
}
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
g_free (self->last_message);
|
|
self->last_message = NULL;
|
|
GST_OBJECT_UNLOCK (self);
|
|
}
|
|
|
|
static void
|
|
fps_display_sink_dispose (GObject * object)
|
|
{
|
|
GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (object);
|
|
|
|
if (self->video_sink) {
|
|
gst_object_unref (self->video_sink);
|
|
self->video_sink = NULL;
|
|
}
|
|
|
|
if (self->text_overlay) {
|
|
gst_object_unref (self->text_overlay);
|
|
self->text_overlay = NULL;
|
|
}
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
g_free (self->last_message);
|
|
self->last_message = NULL;
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
G_OBJECT_CLASS (parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
fps_display_sink_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_SYNC:
|
|
self->sync = g_value_get_boolean (value);
|
|
fps_display_sink_update_sink_sync (self);
|
|
break;
|
|
case PROP_TEXT_OVERLAY:
|
|
self->use_text_overlay = g_value_get_boolean (value);
|
|
|
|
if (self->text_overlay) {
|
|
if (!self->use_text_overlay) {
|
|
GST_DEBUG_OBJECT (self, "text-overlay set to false");
|
|
g_object_set (self->text_overlay, "text", "", "silent", TRUE, NULL);
|
|
} else {
|
|
GST_DEBUG_OBJECT (self, "text-overlay set to true");
|
|
g_object_set (self->text_overlay, "silent", FALSE, NULL);
|
|
}
|
|
}
|
|
break;
|
|
case PROP_VIDEO_SINK:
|
|
/* FIXME should we add a state-lock or a lock around here?
|
|
* need to check if it is possible that a state change NULL->READY can
|
|
* happen while this code is executing on a different thread */
|
|
if (GST_STATE (self) != GST_STATE_NULL) {
|
|
g_warning ("Can't set video-sink property of fpsdisplaysink if not on "
|
|
"NULL state");
|
|
break;
|
|
}
|
|
update_video_sink (self, (GstElement *) g_value_get_object (value));
|
|
break;
|
|
case PROP_FPS_UPDATE_INTERVAL:
|
|
self->fps_update_interval =
|
|
GST_MSECOND * (GstClockTime) g_value_get_int (value);
|
|
break;
|
|
case PROP_SIGNAL_FPS_MEASUREMENTS:
|
|
self->signal_measurements = g_value_get_boolean (value);
|
|
break;
|
|
case PROP_SILENT:
|
|
self->silent = g_value_get_boolean (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
fps_display_sink_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_SYNC:
|
|
g_value_set_boolean (value, self->sync);
|
|
break;
|
|
case PROP_TEXT_OVERLAY:
|
|
g_value_set_boolean (value, self->use_text_overlay);
|
|
break;
|
|
case PROP_VIDEO_SINK:
|
|
g_value_set_object (value, self->video_sink);
|
|
break;
|
|
case PROP_FPS_UPDATE_INTERVAL:
|
|
g_value_set_int (value, (gint) (self->fps_update_interval / GST_MSECOND));
|
|
break;
|
|
case PROP_MAX_FPS:
|
|
g_value_set_double (value, self->max_fps);
|
|
break;
|
|
case PROP_MIN_FPS:
|
|
g_value_set_double (value, self->min_fps);
|
|
break;
|
|
case PROP_FRAMES_DROPPED:
|
|
g_value_set_uint (value, g_atomic_int_get (&self->frames_dropped));
|
|
break;
|
|
case PROP_FRAMES_RENDERED:
|
|
g_value_set_uint (value, g_atomic_int_get (&self->frames_rendered));
|
|
break;
|
|
case PROP_SIGNAL_FPS_MEASUREMENTS:
|
|
g_value_set_boolean (value, self->signal_measurements);
|
|
break;
|
|
case PROP_SILENT:
|
|
g_value_set_boolean (value, self->silent);
|
|
break;
|
|
case PROP_LAST_MESSAGE:
|
|
GST_OBJECT_LOCK (self);
|
|
g_value_set_string (value, self->last_message);
|
|
GST_OBJECT_UNLOCK (self);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
fps_display_sink_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
GstFPSDisplaySink *self = GST_FPS_DISPLAY_SINK (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
|
|
if (self->video_sink == NULL) {
|
|
GstElement *video_sink;
|
|
|
|
GST_DEBUG_OBJECT (self, "No video sink set, creating autovideosink");
|
|
video_sink = gst_element_factory_make ("autovideosink",
|
|
"fps-display-video_sink");
|
|
update_video_sink (self, video_sink);
|
|
}
|
|
|
|
if (self->video_sink != NULL) {
|
|
fps_display_sink_start (self);
|
|
} else {
|
|
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
|
|
("No video sink set and autovideosink is not available"), (NULL));
|
|
ret = GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
/* reinforce our sync to children, as they might have changed
|
|
* internally */
|
|
fps_display_sink_update_sink_sync (self);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state,
|
|
(element, transition), GST_STATE_CHANGE_SUCCESS);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
fps_display_sink_stop (self);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
fps_display_sink_handle_message (GstBin * bin, GstMessage * message)
|
|
{
|
|
GstFPSDisplaySink *self = (GstFPSDisplaySink *) bin;
|
|
|
|
if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_QOS) {
|
|
GstFormat format;
|
|
guint64 rendered, dropped;
|
|
|
|
gst_message_parse_qos_stats (message, &format, &rendered, &dropped);
|
|
if (format != GST_FORMAT_UNDEFINED) {
|
|
if (rendered != -1)
|
|
g_atomic_int_set (&self->frames_rendered, rendered);
|
|
|
|
if (dropped != -1)
|
|
g_atomic_int_set (&self->frames_dropped, dropped);
|
|
}
|
|
}
|
|
|
|
GST_BIN_CLASS (parent_class)->handle_message (bin, message);
|
|
}
|
|
|
|
GType
|
|
fps_display_sink_get_type (void)
|
|
{
|
|
static GType fps_display_sink_type = 0;
|
|
|
|
if (!fps_display_sink_type) {
|
|
static const GTypeInfo fps_display_sink_info = {
|
|
sizeof (GstFPSDisplaySinkClass),
|
|
NULL,
|
|
NULL,
|
|
(GClassInitFunc) fps_display_sink_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstFPSDisplaySink),
|
|
0,
|
|
(GInstanceInitFunc) fps_display_sink_init,
|
|
};
|
|
|
|
fps_display_sink_type = g_type_register_static (GST_TYPE_BIN,
|
|
"GstFPSDisplaySink", &fps_display_sink_info, 0);
|
|
|
|
GST_DEBUG_CATEGORY_INIT (fps_display_sink_debug, "fpsdisplaysink", 0,
|
|
"FPS Display Sink");
|
|
}
|
|
|
|
return fps_display_sink_type;
|
|
}
|
|
|
|
GST_ELEMENT_REGISTER_DEFINE (fpsdisplaysink, "fpsdisplaysink",
|
|
GST_RANK_NONE, fps_display_sink_get_type ());
|