mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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a238caebbb
See https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/3107 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5642>
477 lines
15 KiB
C
477 lines
15 KiB
C
/* GStreamer
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*
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* Copyright (C) 2019-2020 Stephan Hesse <stephan@emliri.com>
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* Copyright (C) 2020 Philippe Normand <philn@igalia.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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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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 "gstplay.h"
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#include "gstplay-signal-adapter.h"
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#include "gstplay-message-private.h"
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GST_DEBUG_CATEGORY_STATIC (gst_play_signal_adapter_debug);
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#define GST_CAT_DEFAULT gst_play_signal_adapter_debug
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enum
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{
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SIGNAL_URI_LOADED,
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SIGNAL_POSITION_UPDATED,
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SIGNAL_DURATION_CHANGED,
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SIGNAL_STATE_CHANGED,
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SIGNAL_BUFFERING,
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SIGNAL_END_OF_STREAM,
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SIGNAL_ERROR,
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SIGNAL_WARNING,
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SIGNAL_VIDEO_DIMENSIONS_CHANGED,
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SIGNAL_MEDIA_INFO_UPDATED,
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SIGNAL_VOLUME_CHANGED,
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SIGNAL_MUTE_CHANGED,
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SIGNAL_SEEK_DONE,
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SIGNAL_LAST
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};
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enum
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{
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PROP_0,
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PROP_PLAY,
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PROP_LAST
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};
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static GParamSpec *param_specs[PROP_LAST] = { NULL, };
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struct _GstPlaySignalAdapter
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{
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GObject parent;
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GstBus *bus;
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GstPlay *play;
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GSource *source;
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};
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struct _GstPlaySignalAdapterClass
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{
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GObjectClass parent_class;
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};
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#define _do_init \
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GST_DEBUG_CATEGORY_INIT (gst_play_signal_adapter_debug, "gst-play-signal-adapter", \
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0, "GstPlay signal adapter")
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#define parent_class gst_play_signal_adapter_parent_class
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G_DEFINE_TYPE_WITH_CODE (GstPlaySignalAdapter, gst_play_signal_adapter,
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G_TYPE_OBJECT, _do_init);
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static guint signals[SIGNAL_LAST] = { 0, };
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static void
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gst_play_signal_adapter_emit (GstPlaySignalAdapter * self,
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const GstStructure * message_data)
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{
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GstPlayMessage play_message_type;
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g_return_if_fail (g_str_equal (gst_structure_get_name (message_data),
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GST_PLAY_MESSAGE_DATA));
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GST_LOG ("Emitting message %" GST_PTR_FORMAT, message_data);
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_TYPE,
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GST_TYPE_PLAY_MESSAGE, &play_message_type, NULL);
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switch (play_message_type) {
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case GST_PLAY_MESSAGE_URI_LOADED:{
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const gchar *uri =
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gst_structure_get_string (message_data, GST_PLAY_MESSAGE_DATA_URI);
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g_signal_emit (self, signals[SIGNAL_URI_LOADED], 0, uri);
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break;
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}
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case GST_PLAY_MESSAGE_POSITION_UPDATED:{
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GstClockTime pos = GST_CLOCK_TIME_NONE;
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_POSITION,
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GST_TYPE_CLOCK_TIME, &pos, NULL);
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g_signal_emit (self, signals[SIGNAL_POSITION_UPDATED], 0, pos);
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break;
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}
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case GST_PLAY_MESSAGE_DURATION_CHANGED:{
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GstClockTime duration = GST_CLOCK_TIME_NONE;
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_DURATION,
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GST_TYPE_CLOCK_TIME, &duration, NULL);
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g_signal_emit (self, signals[SIGNAL_DURATION_CHANGED], 0, duration);
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break;
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}
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case GST_PLAY_MESSAGE_STATE_CHANGED:{
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GstPlayState state = 0;
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_PLAY_STATE,
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GST_TYPE_PLAY_STATE, &state, NULL);
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g_signal_emit (self, signals[SIGNAL_STATE_CHANGED], 0, state);
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break;
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}
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case GST_PLAY_MESSAGE_BUFFERING:{
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guint percent = 0;
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gst_structure_get (message_data,
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GST_PLAY_MESSAGE_DATA_BUFFERING_PERCENT, G_TYPE_UINT, &percent, NULL);
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g_signal_emit (self, signals[SIGNAL_BUFFERING], 0, percent);
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break;
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}
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case GST_PLAY_MESSAGE_END_OF_STREAM:
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g_signal_emit (self, signals[SIGNAL_END_OF_STREAM], 0);
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break;
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case GST_PLAY_MESSAGE_ERROR:{
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GError *error = NULL;
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GstStructure *details = NULL;
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_ERROR,
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G_TYPE_ERROR, &error, GST_PLAY_MESSAGE_DATA_ERROR_DETAILS,
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GST_TYPE_STRUCTURE, &details, NULL);
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g_signal_emit (self, signals[SIGNAL_ERROR], 0, error, details);
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g_error_free (error);
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if (details)
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gst_structure_free (details);
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break;
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}
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case GST_PLAY_MESSAGE_WARNING:{
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GError *error = NULL;
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GstStructure *details = NULL;
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_WARNING,
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G_TYPE_ERROR, &error, GST_PLAY_MESSAGE_DATA_WARNING_DETAILS,
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GST_TYPE_STRUCTURE, &details, NULL);
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g_signal_emit (self, signals[SIGNAL_WARNING], 0, error, details);
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g_error_free (error);
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if (details)
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gst_structure_free (details);
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break;
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}
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case GST_PLAY_MESSAGE_VIDEO_DIMENSIONS_CHANGED:{
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guint width = 0;
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guint height = 0;
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gst_structure_get (message_data,
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GST_PLAY_MESSAGE_DATA_VIDEO_WIDTH, G_TYPE_UINT, &width,
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GST_PLAY_MESSAGE_DATA_VIDEO_HEIGHT, G_TYPE_UINT, &height, NULL);
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g_signal_emit (self, signals[SIGNAL_VIDEO_DIMENSIONS_CHANGED], 0,
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width, height);
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break;
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}
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case GST_PLAY_MESSAGE_MEDIA_INFO_UPDATED:{
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GstPlayMediaInfo *media_info;
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_MEDIA_INFO,
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GST_TYPE_PLAY_MEDIA_INFO, &media_info, NULL);
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g_signal_emit (self, signals[SIGNAL_MEDIA_INFO_UPDATED], 0, media_info);
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g_object_unref (media_info);
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break;
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}
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case GST_PLAY_MESSAGE_VOLUME_CHANGED:{
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gdouble volume;
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_VOLUME,
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G_TYPE_DOUBLE, &volume, NULL);
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g_signal_emit (self, signals[SIGNAL_VOLUME_CHANGED], 0, volume);
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break;
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}
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case GST_PLAY_MESSAGE_MUTE_CHANGED:{
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gboolean is_muted;
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_IS_MUTED,
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G_TYPE_BOOLEAN, &is_muted, NULL);
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g_signal_emit (self, signals[SIGNAL_MUTE_CHANGED], 0, is_muted);
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break;
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}
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case GST_PLAY_MESSAGE_SEEK_DONE:{
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GstClockTime pos;
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gst_structure_get (message_data, GST_PLAY_MESSAGE_DATA_POSITION,
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GST_TYPE_CLOCK_TIME, &pos, NULL);
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g_signal_emit (self, signals[SIGNAL_SEEK_DONE], 0, pos);
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break;
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}
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default:
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g_assert_not_reached ();
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break;
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}
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}
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/*
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* callback for the bus-message in-sync handling
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*/
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static GstBusSyncReply
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gst_play_signal_adapter_bus_sync_handler
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(GstBus * bus, GstMessage * message, gpointer user_data)
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{
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GstPlaySignalAdapter *self = GST_PLAY_SIGNAL_ADAPTER (user_data);
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const GstStructure *message_data = gst_message_get_structure (message);
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gst_play_signal_adapter_emit (self, message_data);
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gst_message_unref (message);
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return GST_BUS_DROP;
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}
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/*
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* callback for the bus-watch
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* pre: there is a message on the bus
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*/
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static gboolean
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gst_play_signal_adapter_on_message (GstBus * bus,
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GstMessage * message, gpointer user_data)
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{
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GstPlaySignalAdapter *self = GST_PLAY_SIGNAL_ADAPTER (user_data);
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const GstStructure *message_data = gst_message_get_structure (message);
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gst_play_signal_adapter_emit (self, message_data);
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return TRUE;
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}
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/**
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* gst_play_signal_adapter_new:
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* @play: (transfer none): #GstPlay instance to emit signals for.
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*
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* A bus-watching #GSource will be created and attached to the the
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* thread-default #GMainContext. The attached callback will emit the
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* corresponding signal for the message received. Matching signals for play
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* messages from the bus will be emitted by it on the created adapter object.
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*
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* Returns: (transfer full): A new #GstPlaySignalAdapter to connect signal handlers to.
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*
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* Since: 1.20
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*/
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GstPlaySignalAdapter *
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gst_play_signal_adapter_new (GstPlay * play)
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{
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GstPlaySignalAdapter *self = NULL;
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GMainContext *context = NULL;
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g_return_val_if_fail (GST_IS_PLAY (play), NULL);
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self = g_object_new (GST_TYPE_PLAY_SIGNAL_ADAPTER, NULL);
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self->play = play;
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self->bus = gst_play_get_message_bus (play);
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self->source = gst_bus_create_watch (self->bus);
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context = g_main_context_get_thread_default ();
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g_source_attach (self->source, context);
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g_source_set_callback (self->source,
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(GSourceFunc) gst_play_signal_adapter_on_message, self, NULL);
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return self;
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}
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/**
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* gst_play_signal_adapter_new_with_main_context:
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* @play: (transfer none): #GstPlay instance to emit signals for.
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* @context: A #GMainContext on which the main-loop will process play bus messages on.
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*
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* A bus-watching #GSource will be created and attached to the @context. The
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* attached callback will emit the corresponding signal for the message
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* received. Matching signals for play messages from the bus will be emitted by
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* it on the created adapter object.
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*
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* Returns: (transfer full): A new #GstPlaySignalAdapter to connect signal handlers to.
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*
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* Since: 1.20
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*/
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GstPlaySignalAdapter *
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gst_play_signal_adapter_new_with_main_context (GstPlay * play,
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GMainContext * context)
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{
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GstPlaySignalAdapter *self = NULL;
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g_return_val_if_fail (GST_IS_PLAY (play), NULL);
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g_return_val_if_fail (context != NULL, NULL);
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self = g_object_new (GST_TYPE_PLAY_SIGNAL_ADAPTER, NULL);
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self->play = play;
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self->bus = gst_play_get_message_bus (play);
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self->source = gst_bus_create_watch (self->bus);
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g_source_attach (self->source, context);
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g_source_set_callback (self->source,
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(GSourceFunc) gst_play_signal_adapter_on_message, self, NULL);
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return self;
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}
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/**
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* gst_play_signal_adapter_new_sync_emit:
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* @play: (transfer none): #GstPlay instance to emit signals for.
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*
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* Create an adapter that synchronously emits its signals, from the thread in
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* which the messages have been posted.
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*
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* Returns: (transfer full): A new #GstPlaySignalAdapter to connect signal handlers to.
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*
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* Since: 1.20
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*/
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GstPlaySignalAdapter *
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gst_play_signal_adapter_new_sync_emit (GstPlay * play)
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{
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GstBus *bus = NULL;
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GstPlaySignalAdapter *self = NULL;
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g_return_val_if_fail (GST_IS_PLAY (play), NULL);
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bus = gst_play_get_message_bus (play);
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self = g_object_new (GST_TYPE_PLAY_SIGNAL_ADAPTER, NULL);
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self->play = play;
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self->bus = bus;
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gst_bus_set_sync_handler (self->bus,
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gst_play_signal_adapter_bus_sync_handler, self, NULL);
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return self;
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}
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/**
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* gst_play_signal_adapter_get_play:
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* @adapter: #GstPlaySignalAdapter instance
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*
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* Returns: (transfer none): The #GstPlay owning this signal adapter.
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*
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* Since: 1.20
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*/
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GstPlay *
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gst_play_signal_adapter_get_play (GstPlaySignalAdapter * adapter)
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{
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g_return_val_if_fail (GST_IS_PLAY_SIGNAL_ADAPTER (adapter), NULL);
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return adapter->play;
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}
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static void
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gst_play_signal_adapter_init (GstPlaySignalAdapter * self)
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{
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self->source = NULL;
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}
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static void
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gst_play_signal_adapter_dispose (GObject * object)
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{
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GstPlaySignalAdapter *self = GST_PLAY_SIGNAL_ADAPTER (object);
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if (self->source) {
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g_source_destroy (self->source);
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g_source_unref (self->source);
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self->source = NULL;
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}
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if (self->bus)
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gst_bus_set_flushing (self->bus, TRUE);
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gst_clear_object (&self->bus);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_play_signal_adapter_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstPlaySignalAdapter *self = GST_PLAY_SIGNAL_ADAPTER (object);
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switch (prop_id) {
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case PROP_PLAY:
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g_value_set_object (value, self->play);
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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_play_signal_adapter_class_init (GstPlaySignalAdapterClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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gobject_class->dispose = gst_play_signal_adapter_dispose;
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gobject_class->get_property = gst_play_signal_adapter_get_property;
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param_specs[PROP_PLAY] =
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g_param_spec_object ("play", "Play",
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"GstPlay owning this adapter",
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GST_TYPE_PLAY, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
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signals[SIGNAL_URI_LOADED] =
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g_signal_new ("uri-loaded", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
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NULL, NULL, G_TYPE_NONE, 1, G_TYPE_STRING);
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signals[SIGNAL_POSITION_UPDATED] =
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g_signal_new ("position-updated", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
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NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_CLOCK_TIME);
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signals[SIGNAL_DURATION_CHANGED] =
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g_signal_new ("duration-changed", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
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NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_CLOCK_TIME);
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signals[SIGNAL_STATE_CHANGED] =
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g_signal_new ("state-changed", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
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NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_PLAY_STATE);
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signals[SIGNAL_BUFFERING] =
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g_signal_new ("buffering", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
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NULL, NULL, G_TYPE_NONE, 1, G_TYPE_INT);
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signals[SIGNAL_END_OF_STREAM] =
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g_signal_new ("end-of-stream", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
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NULL, NULL, G_TYPE_NONE, 0, G_TYPE_INVALID);
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/**
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* GstPlaySignalAdapter::error:
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* @adapter: The #GstPlaySignalAdapter
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* @error: The error
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* @details: (nullable): Additional error details
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*
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* Emitted on errors.
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*/
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signals[SIGNAL_ERROR] =
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g_signal_new ("error", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
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NULL, NULL, G_TYPE_NONE, 2, G_TYPE_ERROR, GST_TYPE_STRUCTURE);
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signals[SIGNAL_VIDEO_DIMENSIONS_CHANGED] =
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g_signal_new ("video-dimensions-changed", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
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NULL, NULL, G_TYPE_NONE, 2, G_TYPE_UINT, G_TYPE_UINT);
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signals[SIGNAL_MEDIA_INFO_UPDATED] =
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g_signal_new ("media-info-updated", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
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NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_PLAY_MEDIA_INFO);
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signals[SIGNAL_VOLUME_CHANGED] =
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g_signal_new ("volume-changed", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
|
|
NULL, NULL, G_TYPE_NONE, 1, G_TYPE_DOUBLE);
|
|
|
|
signals[SIGNAL_MUTE_CHANGED] =
|
|
g_signal_new ("mute-changed", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
|
|
NULL, NULL, G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
|
|
|
|
/**
|
|
* GstPlaySignalAdapter::warning:
|
|
* @adapter: The #GstPlaySignalAdapter
|
|
* @error: The warning
|
|
* @details: (nullable): Additional warning details
|
|
*
|
|
* Emitted on warnings.
|
|
*/
|
|
signals[SIGNAL_WARNING] =
|
|
g_signal_new ("warning", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
|
|
NULL, NULL, G_TYPE_NONE, 2, G_TYPE_ERROR, GST_TYPE_STRUCTURE);
|
|
|
|
signals[SIGNAL_SEEK_DONE] =
|
|
g_signal_new ("seek-done", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS, 0, NULL,
|
|
NULL, NULL, G_TYPE_NONE, 1, GST_TYPE_CLOCK_TIME);
|
|
|
|
g_object_class_install_properties (gobject_class, PROP_LAST, param_specs);
|
|
}
|