Line data Source code
1 : /*
2 : * Copyright (C) 2024 Sky UK
3 : *
4 : * This library is free software; you can redistribute it and/or
5 : * modify it under the terms of the GNU Lesser General Public
6 : * License as published by the Free Software Foundation;
7 : * version 2.1 of the License.
8 : *
9 : * This library is distributed in the hope that it will be useful,
10 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 : * Lesser General Public License for more details.
13 : *
14 : * You should have received a copy of the GNU Lesser General Public
15 : * License along with this library; if not, write to the Free Software
16 : * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 : */
18 :
19 : #include <gst/gst.h>
20 : #include <inttypes.h>
21 : #include <stdint.h>
22 :
23 : #include "GStreamerEMEUtils.h"
24 : #include "GStreamerMSEUtils.h"
25 : #include "IMediaPipelineCapabilities.h"
26 : #include "PullModeSubtitlePlaybackDelegate.h"
27 : #include "RialtoGStreamerMSEBaseSinkPrivate.h"
28 : #include "RialtoGStreamerMSESubtitleSink.h"
29 :
30 : using namespace firebolt::rialto::client;
31 :
32 : GST_DEBUG_CATEGORY_STATIC(RialtoMSESubtitleSinkDebug);
33 : #define GST_CAT_DEFAULT RialtoMSESubtitleSinkDebug
34 :
35 : #define rialto_mse_subtitle_sink_parent_class parent_class
36 69 : G_DEFINE_TYPE_WITH_CODE(RialtoMSESubtitleSink, rialto_mse_subtitle_sink, RIALTO_TYPE_MSE_BASE_SINK,
37 : GST_DEBUG_CATEGORY_INIT(RialtoMSESubtitleSinkDebug, "rialtomsesubtitlesink", 0,
38 : "rialto mse subtitle sink"));
39 :
40 : enum
41 : {
42 : PROP_0,
43 : PROP_MUTE,
44 : PROP_TEXT_TRACK_IDENTIFIER,
45 : PROP_WINDOW_ID,
46 : PROP_ASYNC,
47 : PROP_LAST
48 : };
49 :
50 66 : static GstStateChangeReturn rialto_mse_subtitle_sink_change_state(GstElement *element, GstStateChange transition)
51 : {
52 66 : RialtoMSESubtitleSink *sink = RIALTO_MSE_SUBTITLE_SINK(element);
53 :
54 66 : if (GST_STATE_CHANGE_NULL_TO_READY == transition)
55 : {
56 21 : GST_INFO_OBJECT(sink, "RialtoMSESubtitleSink state change to READY. Initializing delegate");
57 21 : rialto_mse_base_sink_initialise_delegate(RIALTO_MSE_BASE_SINK(sink),
58 42 : std::make_shared<PullModeSubtitlePlaybackDelegate>(element));
59 : }
60 :
61 66 : GstStateChangeReturn result = GST_ELEMENT_CLASS(parent_class)->change_state(element, transition);
62 66 : if (G_UNLIKELY(result == GST_STATE_CHANGE_FAILURE))
63 : {
64 1 : GST_WARNING_OBJECT(sink, "State change failed");
65 1 : return result;
66 : }
67 :
68 65 : return result;
69 : }
70 :
71 7 : static void rialto_mse_subtitle_sink_get_property(GObject *object, guint propId, GValue *value, GParamSpec *pspec)
72 : {
73 7 : switch (propId)
74 : {
75 2 : case PROP_MUTE:
76 : {
77 2 : g_value_set_boolean(value, FALSE); // Set default value first
78 2 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::Mute, value);
79 2 : break;
80 : }
81 2 : case PROP_TEXT_TRACK_IDENTIFIER:
82 : {
83 2 : g_value_set_string(value, ""); // Set default value first
84 2 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object),
85 2 : IPlaybackDelegate::Property::TextTrackIdentifier, value);
86 2 : break;
87 : }
88 1 : case PROP_WINDOW_ID:
89 : {
90 1 : g_value_set_uint(value, 0); // Set default value first
91 1 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::WindowId,
92 : value);
93 1 : break;
94 : }
95 1 : case PROP_ASYNC:
96 : {
97 1 : g_value_set_boolean(value, FALSE); // Set default value first
98 1 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::Async, value);
99 1 : break;
100 : }
101 1 : default:
102 1 : G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propId, pspec);
103 1 : break;
104 : }
105 7 : }
106 :
107 10 : static void rialto_mse_subtitle_sink_set_property(GObject *object, guint propId, const GValue *value, GParamSpec *pspec)
108 : {
109 10 : switch (propId)
110 : {
111 3 : case PROP_MUTE:
112 3 : rialto_mse_base_sink_handle_set_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::Mute, value);
113 3 : break;
114 4 : case PROP_TEXT_TRACK_IDENTIFIER:
115 : {
116 4 : rialto_mse_base_sink_handle_set_property(RIALTO_MSE_BASE_SINK(object),
117 4 : IPlaybackDelegate::Property::TextTrackIdentifier, value);
118 4 : break;
119 : }
120 1 : case PROP_WINDOW_ID:
121 : {
122 1 : rialto_mse_base_sink_handle_set_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::WindowId,
123 : value);
124 1 : break;
125 : }
126 1 : case PROP_ASYNC:
127 : {
128 1 : rialto_mse_base_sink_handle_set_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::Async, value);
129 1 : break;
130 : }
131 1 : default:
132 1 : G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propId, pspec);
133 1 : break;
134 : }
135 10 : }
136 :
137 21 : static void rialto_mse_subtitle_sink_init(RialtoMSESubtitleSink *sink)
138 : {
139 21 : RialtoMSEBaseSinkPrivate *basePriv = sink->parent.priv;
140 :
141 21 : if (!rialto_mse_base_sink_initialise_sinkpad(RIALTO_MSE_BASE_SINK(sink)))
142 : {
143 0 : GST_ERROR_OBJECT(sink, "Failed to initialise SUBTITLE sink. Sink pad initialisation failed.");
144 0 : return;
145 : }
146 :
147 21 : gst_pad_set_chain_function(basePriv->m_sinkPad, rialto_mse_base_sink_chain);
148 21 : gst_pad_set_event_function(basePriv->m_sinkPad, rialto_mse_base_sink_event);
149 : }
150 :
151 1 : static void rialto_mse_subtitle_sink_class_init(RialtoMSESubtitleSinkClass *klass)
152 : {
153 1 : GObjectClass *gobjectClass = G_OBJECT_CLASS(klass);
154 1 : GstElementClass *elementClass = GST_ELEMENT_CLASS(klass);
155 1 : gobjectClass->get_property = rialto_mse_subtitle_sink_get_property;
156 1 : gobjectClass->set_property = rialto_mse_subtitle_sink_set_property;
157 1 : elementClass->change_state = rialto_mse_subtitle_sink_change_state;
158 :
159 1 : g_object_class_install_property(gobjectClass, PROP_MUTE,
160 : g_param_spec_boolean("mute", "Mute", "Mute subtitles", FALSE, G_PARAM_READWRITE));
161 :
162 1 : g_object_class_install_property(gobjectClass, PROP_TEXT_TRACK_IDENTIFIER,
163 : g_param_spec_string("text-track-identifier", "Text Track Identifier",
164 : "Identifier of text track. Valid input for service is "
165 : "\"CC[1-4]\", \"TEXT[1-4]\", \"SERVICE[1-64]\"",
166 : nullptr, GParamFlags(G_PARAM_READWRITE)));
167 :
168 1 : g_object_class_install_property(gobjectClass, PROP_WINDOW_ID,
169 : g_param_spec_uint("window-id", "Window ID", "Id of window (placeholder)", 0, 256, 0,
170 : GParamFlags(G_PARAM_READWRITE)));
171 :
172 1 : g_object_class_install_property(gobjectClass, PROP_ASYNC,
173 : g_param_spec_boolean("async", "Async", "Asynchronous mode", FALSE, G_PARAM_READWRITE));
174 :
175 : std::unique_ptr<firebolt::rialto::IMediaPipelineCapabilities> mediaPlayerCapabilities =
176 1 : firebolt::rialto::IMediaPipelineCapabilitiesFactory::createFactory()->createMediaPipelineCapabilities();
177 1 : if (mediaPlayerCapabilities)
178 : {
179 : std::vector<std::string> supportedMimeTypes =
180 1 : mediaPlayerCapabilities->getSupportedMimeTypes(firebolt::rialto::MediaSourceType::SUBTITLE);
181 :
182 1 : rialto_mse_sink_setup_supported_caps(elementClass, supportedMimeTypes);
183 : }
184 : else
185 : {
186 0 : GST_ERROR("Failed to get supported mime types for Subtitle");
187 : }
188 :
189 1 : gst_element_class_set_details_simple(elementClass, "Rialto Subtitle Sink", "Parser/Subtitle/Sink/Subtitle",
190 : "Communicates with Rialto Server", "Sky");
191 : }
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