Sayonara Player
Utils.h
1 /* EngineUtils.h */
2 
3 /* Copyright (C) 2011-2019 Lucio Carreras
4  *
5  * This file is part of sayonara player
6  *
7  * This program is free software: you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation, either version 3 of the License, or
10  * (at your option) any later version.
11 
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16 
17  * You should have received a copy of the GNU General Public License
18  * along with this program. If not, see <http://www.gnu.org/licenses/>.
19  */
20 
21 #ifndef ENGINE_UTILS_H
22 #define ENGINE_UTILS_H
23 
24 #include "Utils/typedefs.h"
25 
26 #include <type_traits>
27 #include <utility>
28 #include <memory>
29 #include <iostream>
30 
31 #include <gst/gst.h>
32 
33 namespace Engine
34 {
39  namespace Utils
40  {
46  void config_queue(GstElement* queue, gulong max_time_ms=100);
47 
52  void config_sink(GstElement* sink);
53 
58  void config_lame(GstElement* lame);
59 
67  bool tee_connect(GstElement* tee, GstElement* queue, const QString& queue_name);
68 
75  bool has_element(GstBin* bin, GstElement* element);
76 
83  bool test_and_error(void* element, const QString& errorstr);
84 
91  bool test_and_error_bool(bool b, const QString& errorstr);
92 
99  bool create_element(GstElement** elem, const QString& elem_name);
100 
108  bool create_element(GstElement** elem, const QString& elem_name, const QString& name);
109 
115  void set_passthrough(GstElement* e, bool b);
116 
122  GValue get_int64(gint64 value);
123 
129  GValue get_uint64(guint64 value);
130 
136  GValue get_uint(guint value);
137 
143  GValue get_int(gint value);
144 
149  MilliSeconds get_update_interval();
150 
151  template<typename T>
152 
157  {
159  {
160  std::string("There's a wrong value somewhere") + value;
161  }
162  };
163 
164 
165  template<typename GlibObject, typename T>
172  void set_value(GlibObject* object, const gchar* key, T value, std::true_type)
173  {
174  (void) object;
175  (void) key;
176  (void) value;
178  }
179 
180 
181  template<typename GlibObject, typename T>
188  void set_value(GlibObject* object, const gchar* key, T value, std::false_type)
189  {
190  g_object_set(G_OBJECT(object), key, value, nullptr);
191  }
192 
193 
194  template<typename GlibObject, typename T>
201  void set_value(GlibObject* object, const gchar* key, T value)
202  {
203  constexpr bool b = (std::is_integral<T>::value) && (sizeof(T) > sizeof(bool));
204  set_value(object, key, value, std::integral_constant<bool, b>());
205  }
206 
207 
208  template<typename GlibObject, typename First>
215  void set_values(GlibObject* object, const gchar* key, First value)
216  {
217  set_value(object, key, value);
218  }
219 
220 
221  template<typename GlibObject, typename First, typename... Args>
229  void set_values(GlibObject* object, const gchar* key, First value, Args... args)
230  {
231  set_value(object, key, value);
232  set_values(object, std::forward<Args>(args)...);
233  }
234 
235 
236  template<typename GlibObject>
243  void set_int64_value(GlibObject* object, const gchar* key, gint64 value)
244  {
245  GValue val = get_int64(value);
246  g_object_set_property(G_OBJECT(object), key, &val);
247  }
248 
249 
250  template<typename GlibObject>
257  void set_int_value(GlibObject* object,const gchar* key, gint value)
258  {
259  GValue val = get_int(value);
260  g_object_set_property(G_OBJECT(object), key, &val);
261  }
262 
263 
264 
265  template<typename GlibObject>
272  void set_uint64_value(GlibObject* object, const gchar* key, guint64 value)
273  {
274  GValue val = get_uint64(value);
275  g_object_set_property(G_OBJECT(object), key, &val);
276  }
277 
278 
279  template<typename GlibObject>
286  void set_uint_value(GlibObject* object, const gchar* key, guint value)
287  {
288  GValue val = get_uint(value);
289  g_object_set_property(G_OBJECT(object), key, &val);
290  }
291 
297  MilliSeconds get_duration_ms(GstElement* element);
298 
304  MilliSeconds get_position_ms(GstElement* element);
305 
311  MilliSeconds get_time_to_go(GstElement* element);
312 
318  GstState get_state(GstElement* element);
319 
326  bool set_state(GstElement* element, GstState state);
327 
333  bool check_plugin_available(const gchar* str);
334 
339  bool check_lame_available();
340 
345  bool check_pitch_available();
346 
354  bool create_bin(GstElement** bin, const QList<GstElement*>& elements, const QString& prefix);
355 
362  bool create_ghost_pad(GstBin* bin, GstElement* e);
363 
369  bool link_elements(const QList<GstElement*>& elements);
370 
376  void add_elements(GstBin* bin, const QList<GstElement*>& elements);
377 
382  void unref_elements(const QList<GstElement*>& elements);
383  }
384 }
385 
386 #endif // ENGINE_UTILS_H
bool has_element(GstBin *bin, GstElement *element)
has_element
void unref_elements(const QList< GstElement * > &elements)
unref_elements
bool create_bin(GstElement **bin, const QList< GstElement * > &elements, const QString &prefix)
create_bin
void set_uint_value(GlibObject *object, const gchar *key, guint value)
set_uint_value
Definition: Utils.h:286
bool create_ghost_pad(GstBin *bin, GstElement *e)
create_ghost_pad
MilliSeconds get_time_to_go(GstElement *element)
get_time_to_go
void set_int64_value(GlibObject *object, const gchar *key, gint64 value)
set_int64_value
Definition: Utils.h:243
void set_uint64_value(GlibObject *object, const gchar *key, guint64 value)
set_uint64_value
Definition: Utils.h:272
void set_value(GlibObject *object, const gchar *key, T value, std::true_type)
set_value
Definition: Utils.h:172
void add_elements(GstBin *bin, const QList< GstElement * > &elements)
add_elements
void config_lame(GstElement *lame)
config_lame
bool test_and_error_bool(bool b, const QString &errorstr)
test_and_error_bool
bool link_elements(const QList< GstElement * > &elements)
link_elements
GstState get_state(GstElement *element)
get_state
bool test_and_error(void *element, const QString &errorstr)
test_and_error
bool check_plugin_available(const gchar *str)
check_plugin_available
bool tee_connect(GstElement *tee, GstElement *queue, const QString &queue_name)
tee_connect
bool set_state(GstElement *element, GstState state)
set_state
MilliSeconds get_position_ms(GstElement *element)
get_position_ms
GValue get_int(gint value)
get_int
void set_int_value(GlibObject *object, const gchar *key, gint value)
set_int_value
Definition: Utils.h:257
MilliSeconds get_duration_ms(GstElement *element)
get_duration_ms
void set_values(GlibObject *object, const gchar *key, First value)
set_values
Definition: Utils.h:215
void set_passthrough(GstElement *e, bool b)
set_passthrough
Class for compiler warnings.
Definition: Utils.h:156
GValue get_uint64(guint64 value)
get_uint64
GValue get_int64(gint64 value)
get_int64
bool create_element(GstElement **elem, const QString &elem_name)
create_element
void config_queue(GstElement *queue, gulong max_time_ms=100)
config_queue
MilliSeconds get_update_interval()
get_update_interval
void config_sink(GstElement *sink)
config_sink
bool check_pitch_available()
check_pitch_available
GValue get_uint(guint value)
get_uint
Definition: org_mpris_media_player2_adaptor.h:20
bool check_lame_available()
check_lame_available