Line data Source code
1 : /*
2 : * Copyright (C) 2022 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 : #define USE_GLIB 1
20 :
21 : #include <cstring>
22 : #include <limits>
23 :
24 : #include <gst/gst.h>
25 :
26 : #include "ControlBackend.h"
27 : #include "GStreamerUtils.h"
28 : #include "IClientLogControl.h"
29 : #include "IMediaPipeline.h"
30 : #include "LogToGstHandler.h"
31 : #include "RialtoGStreamerMSEBaseSink.h"
32 : #include "RialtoGStreamerMSEBaseSinkPrivate.h"
33 :
34 : GST_DEBUG_CATEGORY_STATIC(RialtoMSEBaseSinkDebug);
35 : #define GST_CAT_DEFAULT RialtoMSEBaseSinkDebug
36 :
37 : #define rialto_mse_base_sink_parent_class parent_class
38 4211 : G_DEFINE_TYPE_WITH_CODE(RialtoMSEBaseSink, rialto_mse_base_sink, GST_TYPE_ELEMENT,
39 : G_ADD_PRIVATE(RialtoMSEBaseSink)
40 : GST_DEBUG_CATEGORY_INIT(RialtoMSEBaseSinkDebug, "rialtomsebasesink", 0,
41 : "rialto mse base sink"));
42 :
43 : enum
44 : {
45 : PROP_0,
46 : PROP_IS_SINGLE_PATH_STREAM,
47 : PROP_N_STREAMS,
48 : PROP_HAS_DRM,
49 : PROP_STATS,
50 : PROP_LAST_SAMPLE,
51 : PROP_ENABLE_LAST_SAMPLE,
52 : PROP_LAST
53 : };
54 :
55 : enum
56 : {
57 : SIGNAL_UNDERFLOW,
58 : SIGNAL_LAST
59 : };
60 :
61 : static guint g_signals[SIGNAL_LAST] = {0};
62 :
63 297 : void rialto_mse_base_sink_initialise_delegate(RialtoMSEBaseSink *sink, const std::shared_ptr<IPlaybackDelegate> &delegate)
64 : {
65 297 : std::unique_lock lock{sink->priv->m_sinkMutex};
66 297 : sink->priv->m_delegate = delegate;
67 :
68 299 : for (auto &[type, value] : sink->priv->m_queuedProperties)
69 : {
70 2 : delegate->setProperty(type, &value);
71 2 : g_value_unset(&value);
72 : }
73 297 : sink->priv->m_queuedProperties.clear();
74 : }
75 :
76 1782 : static std::shared_ptr<IPlaybackDelegate> rialto_mse_base_sink_get_delegate(RialtoMSEBaseSink *sink)
77 : {
78 1782 : std::unique_lock lock{sink->priv->m_sinkMutex};
79 1782 : if (!sink->priv->m_delegate)
80 : {
81 3 : GST_ERROR_OBJECT(sink, "Sink delegate not initialized");
82 : }
83 3564 : return sink->priv->m_delegate;
84 1782 : }
85 :
86 45 : static gboolean rialto_mse_base_sink_send_event(GstElement *element, GstEvent *event)
87 : {
88 45 : if (auto delegate = rialto_mse_base_sink_get_delegate(RIALTO_MSE_BASE_SINK(element)))
89 : {
90 45 : return delegate->handleSendEvent(event);
91 : }
92 0 : return FALSE;
93 : }
94 :
95 219 : gboolean rialto_mse_base_sink_event(GstPad *pad, GstObject *parent, GstEvent *event)
96 : {
97 219 : if (auto delegate = rialto_mse_base_sink_get_delegate(RIALTO_MSE_BASE_SINK(parent)))
98 : {
99 219 : return delegate->handleEvent(pad, parent, event);
100 : }
101 0 : return FALSE;
102 : }
103 :
104 36 : GstFlowReturn rialto_mse_base_sink_chain(GstPad *pad, GstObject *parent, GstBuffer *buf)
105 : {
106 36 : if (auto delegate = rialto_mse_base_sink_get_delegate(RIALTO_MSE_BASE_SINK(parent)))
107 : {
108 36 : return delegate->handleBuffer(buf);
109 : }
110 0 : return GST_FLOW_ERROR;
111 : }
112 :
113 38 : static gboolean rialto_mse_base_sink_query(GstElement *element, GstQuery *query)
114 : {
115 38 : RialtoMSEBaseSink *sink = RIALTO_MSE_BASE_SINK(element);
116 38 : if (auto delegate = rialto_mse_base_sink_get_delegate(sink))
117 : {
118 38 : std::optional<gboolean> result{delegate->handleQuery(query)};
119 38 : if (result.has_value())
120 : {
121 8 : return result.value();
122 : }
123 30 : GstElement *parent = GST_ELEMENT(&sink->parent);
124 30 : return GST_ELEMENT_CLASS(parent_class)->query(parent, query);
125 38 : }
126 0 : return FALSE;
127 : }
128 :
129 958 : static GstStateChangeReturn rialto_mse_base_sink_change_state(GstElement *element, GstStateChange transition)
130 : {
131 958 : RialtoMSEBaseSink *sink = RIALTO_MSE_BASE_SINK(element);
132 958 : if (auto delegate = rialto_mse_base_sink_get_delegate(sink))
133 : {
134 957 : GstStateChangeReturn status = delegate->changeState(transition);
135 957 : if (GST_STATE_CHANGE_FAILURE != status)
136 : {
137 950 : if (GST_STATE_CHANGE_READY_TO_NULL == transition)
138 : {
139 291 : sink->priv->m_delegate.reset();
140 : }
141 950 : GstStateChangeReturn result = GST_ELEMENT_CLASS(parent_class)->change_state(element, transition);
142 950 : if (G_UNLIKELY(result == GST_STATE_CHANGE_FAILURE))
143 : {
144 0 : GST_WARNING_OBJECT(sink, "State change failed");
145 0 : return result;
146 : }
147 950 : else if (result == GST_STATE_CHANGE_ASYNC)
148 : {
149 0 : return GST_STATE_CHANGE_ASYNC;
150 : }
151 : }
152 957 : return status;
153 958 : }
154 1 : return GST_STATE_CHANGE_FAILURE;
155 : }
156 :
157 58 : void rialto_mse_base_sink_handle_get_property(RialtoMSEBaseSink *sink, const IPlaybackDelegate::Property &property,
158 : GValue *value)
159 : {
160 58 : if (auto delegate = rialto_mse_base_sink_get_delegate(sink))
161 : {
162 58 : delegate->getProperty(property, value);
163 : }
164 : else // Copy queued value if present
165 : {
166 0 : std::unique_lock lock{sink->priv->m_sinkMutex};
167 0 : if (sink->priv->m_queuedProperties.find(property) != sink->priv->m_queuedProperties.end())
168 : {
169 0 : g_value_copy(&sink->priv->m_queuedProperties[property], value);
170 : }
171 58 : }
172 : }
173 :
174 428 : void rialto_mse_base_sink_handle_set_property(RialtoMSEBaseSink *sink, const IPlaybackDelegate::Property &property,
175 : const GValue *value)
176 : {
177 428 : if (auto delegate = rialto_mse_base_sink_get_delegate(sink))
178 : {
179 426 : delegate->setProperty(property, value);
180 : }
181 : else
182 : {
183 2 : std::unique_lock lock{sink->priv->m_sinkMutex};
184 2 : sink->priv->m_queuedProperties[property] = G_VALUE_INIT;
185 2 : g_value_init(&(sink->priv->m_queuedProperties[property]), G_VALUE_TYPE(value));
186 2 : g_value_copy(value, &(sink->priv->m_queuedProperties[property]));
187 430 : }
188 428 : }
189 :
190 11 : static void rialto_mse_base_sink_get_property(GObject *object, guint propId, GValue *value, GParamSpec *pspec)
191 : {
192 11 : switch (propId)
193 : {
194 1 : case PROP_IS_SINGLE_PATH_STREAM:
195 : // Set default value if it can't be acquired
196 1 : g_value_set_boolean(value, FALSE);
197 1 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object),
198 1 : IPlaybackDelegate::Property::IsSinglePathStream, value);
199 1 : break;
200 1 : case PROP_N_STREAMS:
201 : // Set default value if it can't be acquired
202 1 : g_value_set_int(value, 1);
203 1 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object),
204 1 : IPlaybackDelegate::Property::NumberOfStreams, value);
205 1 : break;
206 1 : case PROP_HAS_DRM:
207 : // Set default value if it can't be acquired
208 1 : g_value_set_boolean(value, TRUE);
209 1 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::HasDrm,
210 : value);
211 1 : break;
212 2 : case PROP_STATS:
213 2 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::Stats, value);
214 2 : break;
215 2 : case PROP_ENABLE_LAST_SAMPLE:
216 2 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object),
217 2 : IPlaybackDelegate::Property::EnableLastSample, value);
218 2 : break;
219 4 : case PROP_LAST_SAMPLE:
220 4 : rialto_mse_base_sink_handle_get_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::LastSample,
221 : value);
222 4 : break;
223 0 : default:
224 0 : G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propId, pspec);
225 0 : break;
226 : }
227 11 : }
228 :
229 352 : static void rialto_mse_base_sink_set_property(GObject *object, guint propId, const GValue *value, GParamSpec *pspec)
230 : {
231 352 : switch (propId)
232 : {
233 175 : case PROP_IS_SINGLE_PATH_STREAM:
234 175 : rialto_mse_base_sink_handle_set_property(RIALTO_MSE_BASE_SINK(object),
235 175 : IPlaybackDelegate::Property::IsSinglePathStream, value);
236 175 : break;
237 175 : case PROP_N_STREAMS:
238 175 : rialto_mse_base_sink_handle_set_property(RIALTO_MSE_BASE_SINK(object),
239 175 : IPlaybackDelegate::Property::NumberOfStreams, value);
240 175 : break;
241 1 : case PROP_HAS_DRM:
242 1 : rialto_mse_base_sink_handle_set_property(RIALTO_MSE_BASE_SINK(object), IPlaybackDelegate::Property::HasDrm,
243 : value);
244 1 : break;
245 1 : case PROP_ENABLE_LAST_SAMPLE:
246 1 : rialto_mse_base_sink_handle_set_property(RIALTO_MSE_BASE_SINK(object),
247 1 : IPlaybackDelegate::Property::EnableLastSample, value);
248 1 : break;
249 0 : default:
250 0 : G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propId, pspec);
251 0 : break;
252 : }
253 352 : }
254 :
255 1 : void rialto_mse_base_handle_rialto_server_sent_buffer_underflow(RialtoMSEBaseSink *sink)
256 : {
257 1 : GST_WARNING_OBJECT(sink, "Sending underflow signal");
258 : // send 2 last parameters just to be compatible with RDK's buffer-underflow-callback signal signature
259 1 : g_signal_emit(G_OBJECT(sink), g_signals[SIGNAL_UNDERFLOW], 0, 0, nullptr);
260 : }
261 :
262 297 : bool rialto_mse_base_sink_initialise_sinkpad(RialtoMSEBaseSink *sink)
263 : {
264 : GstPadTemplate *pad_template =
265 297 : gst_element_class_get_pad_template(GST_ELEMENT_CLASS(G_OBJECT_GET_CLASS(sink)), "sink");
266 297 : if (!pad_template)
267 : {
268 0 : GST_ERROR_OBJECT(sink, "Could not find sink pad template");
269 0 : return false;
270 : }
271 :
272 297 : GstPad *sinkPad = gst_pad_new_from_template(pad_template, "sink");
273 297 : if (!sinkPad)
274 : {
275 0 : GST_ERROR_OBJECT(sink, "Could not create sinkpad");
276 0 : return false;
277 : }
278 :
279 297 : gst_element_add_pad(GST_ELEMENT_CAST(sink), sinkPad);
280 297 : sink->priv->m_sinkPad = sinkPad;
281 :
282 297 : return true;
283 : }
284 :
285 297 : static void rialto_mse_base_sink_init(RialtoMSEBaseSink *sink)
286 : {
287 297 : GST_INFO_OBJECT(sink, "Init: %" GST_PTR_FORMAT, sink);
288 297 : sink->priv = static_cast<RialtoMSEBaseSinkPrivate *>(rialto_mse_base_sink_get_instance_private(sink));
289 297 : new (sink->priv) RialtoMSEBaseSinkPrivate();
290 :
291 297 : GST_OBJECT_FLAG_SET(sink, GST_ELEMENT_FLAG_SINK);
292 : }
293 :
294 297 : static void rialto_mse_base_sink_finalize(GObject *object)
295 : {
296 297 : RialtoMSEBaseSink *sink = RIALTO_MSE_BASE_SINK(object);
297 297 : RialtoMSEBaseSinkPrivate *priv = sink->priv;
298 297 : GST_INFO_OBJECT(sink, "Finalize: %" GST_PTR_FORMAT " %" GST_PTR_FORMAT, sink, priv);
299 :
300 297 : priv->~RialtoMSEBaseSinkPrivate();
301 297 : GST_CALL_PARENT(G_OBJECT_CLASS, finalize, (object));
302 : }
303 :
304 1 : static void rialto_mse_base_sink_class_init(RialtoMSEBaseSinkClass *klass)
305 : {
306 : std::shared_ptr<firebolt::rialto::IClientLogHandler> logToGstHandler =
307 1 : std::make_shared<firebolt::rialto::LogToGstHandler>();
308 1 : if (!firebolt::rialto::IClientLogControlFactory::createFactory()->createClientLogControl().registerLogHandler(logToGstHandler,
309 : true))
310 : {
311 0 : GST_ERROR("Unable to preRegister log handler");
312 : }
313 :
314 1 : GObjectClass *gobjectClass = G_OBJECT_CLASS(klass);
315 1 : GstElementClass *elementClass = GST_ELEMENT_CLASS(klass);
316 :
317 1 : gst_element_class_set_metadata(elementClass, "Rialto MSE base sink", "Generic", "A sink for Rialto", "Sky");
318 :
319 1 : gobjectClass->finalize = rialto_mse_base_sink_finalize;
320 1 : gobjectClass->get_property = rialto_mse_base_sink_get_property;
321 1 : gobjectClass->set_property = rialto_mse_base_sink_set_property;
322 1 : elementClass->query = rialto_mse_base_sink_query;
323 1 : elementClass->send_event = rialto_mse_base_sink_send_event;
324 1 : elementClass->change_state = rialto_mse_base_sink_change_state;
325 :
326 1 : g_signals[SIGNAL_UNDERFLOW] = g_signal_new("buffer-underflow-callback", G_TYPE_FROM_CLASS(klass),
327 : (GSignalFlags)(G_SIGNAL_RUN_LAST), 0, nullptr, nullptr,
328 : g_cclosure_marshal_VOID__UINT_POINTER, G_TYPE_NONE, 2, G_TYPE_UINT,
329 : G_TYPE_POINTER);
330 :
331 1 : g_object_class_install_property(gobjectClass, PROP_IS_SINGLE_PATH_STREAM,
332 : g_param_spec_boolean("single-path-stream", "single path stream",
333 : "is single path stream", FALSE, GParamFlags(G_PARAM_READWRITE)));
334 :
335 1 : g_object_class_install_property(gobjectClass, PROP_N_STREAMS,
336 : g_param_spec_int("streams-number", "streams number", "streams number", 1, G_MAXINT,
337 : 1, GParamFlags(G_PARAM_READWRITE)));
338 :
339 1 : g_object_class_install_property(gobjectClass, PROP_HAS_DRM,
340 : g_param_spec_boolean("has-drm", "has drm", "has drm", TRUE,
341 : GParamFlags(G_PARAM_READWRITE)));
342 1 : g_object_class_install_property(gobjectClass, PROP_STATS,
343 : g_param_spec_pointer("stats", NULL, "pointer to a gst_structure",
344 : GParamFlags(G_PARAM_READABLE)));
345 :
346 1 : g_object_class_install_property(gobjectClass, PROP_ENABLE_LAST_SAMPLE,
347 : g_param_spec_boolean("enable-last-sample", "Enable Last Buffer",
348 : "Enable the last-sample property", FALSE,
349 : GParamFlags(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
350 :
351 1 : g_object_class_install_property(gobjectClass, PROP_LAST_SAMPLE,
352 : g_param_spec_boxed("last-sample", "Last Sample",
353 : "The last sample received in the sink", GST_TYPE_SAMPLE,
354 : GParamFlags(G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
355 : }
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