1 | /* |
2 | * Copyright © 2018 Benjamin Otte |
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; either |
7 | * version 2.1 of the License, or (at your option) any later version. |
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, see <http://www.gnu.org/licenses/>. |
16 | * |
17 | * Authors: Benjamin Otte <otte@gnome.org> |
18 | */ |
19 | |
20 | #include "config.h" |
21 | |
22 | #include "gtkgstmediafileprivate.h" |
23 | #include "gtkgstpaintableprivate.h" |
24 | |
25 | #include <gst/player/gstplayer.h> |
26 | #include <gst/player/gstplayer-g-main-context-signal-dispatcher.h> |
27 | |
28 | struct _GtkGstMediaFile |
29 | { |
30 | GtkMediaFile parent_instance; |
31 | |
32 | GstPlayer *player; |
33 | GdkPaintable *paintable; |
34 | }; |
35 | |
36 | struct _GtkGstMediaFileClass |
37 | { |
38 | GtkMediaFileClass parent_class; |
39 | }; |
40 | |
41 | #define TO_GST_TIME(ts) ((ts) * (GST_SECOND / G_USEC_PER_SEC)) |
42 | #define FROM_GST_TIME(ts) ((ts) / (GST_SECOND / G_USEC_PER_SEC)) |
43 | |
44 | static void |
45 | gtk_gst_media_file_paintable_snapshot (GdkPaintable *paintable, |
46 | GdkSnapshot *snapshot, |
47 | double width, |
48 | double height) |
49 | { |
50 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: paintable); |
51 | |
52 | gdk_paintable_snapshot (paintable: self->paintable, snapshot, width, height); |
53 | } |
54 | |
55 | static GdkPaintable * |
56 | gtk_gst_media_file_paintable_get_current_image (GdkPaintable *paintable) |
57 | { |
58 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: paintable); |
59 | |
60 | return gdk_paintable_get_current_image (paintable: self->paintable); |
61 | } |
62 | |
63 | static int |
64 | gtk_gst_media_file_paintable_get_intrinsic_width (GdkPaintable *paintable) |
65 | { |
66 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: paintable); |
67 | |
68 | return gdk_paintable_get_intrinsic_width (paintable: self->paintable); |
69 | } |
70 | |
71 | static int |
72 | gtk_gst_media_file_paintable_get_intrinsic_height (GdkPaintable *paintable) |
73 | { |
74 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: paintable); |
75 | |
76 | return gdk_paintable_get_intrinsic_height (paintable: self->paintable); |
77 | } |
78 | |
79 | static double gtk_gst_media_file_paintable_get_intrinsic_aspect_ratio (GdkPaintable *paintable) |
80 | { |
81 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: paintable); |
82 | |
83 | return gdk_paintable_get_intrinsic_aspect_ratio (paintable: self->paintable); |
84 | }; |
85 | |
86 | static void |
87 | gtk_gst_media_file_paintable_init (GdkPaintableInterface *iface) |
88 | { |
89 | iface->snapshot = gtk_gst_media_file_paintable_snapshot; |
90 | iface->get_current_image = gtk_gst_media_file_paintable_get_current_image; |
91 | iface->get_intrinsic_width = gtk_gst_media_file_paintable_get_intrinsic_width; |
92 | iface->get_intrinsic_height = gtk_gst_media_file_paintable_get_intrinsic_height; |
93 | iface->get_intrinsic_aspect_ratio = gtk_gst_media_file_paintable_get_intrinsic_aspect_ratio; |
94 | } |
95 | |
96 | G_DEFINE_TYPE_EXTENDED (GtkGstMediaFile, gtk_gst_media_file, GTK_TYPE_MEDIA_FILE, 0, |
97 | G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE, |
98 | gtk_gst_media_file_paintable_init)) |
99 | |
100 | void |
101 | g_io_module_load (GIOModule *module) |
102 | { |
103 | g_type_module_use (G_TYPE_MODULE (module)); |
104 | |
105 | g_io_extension_point_implement (GTK_MEDIA_FILE_EXTENSION_POINT_NAME, |
106 | GTK_TYPE_GST_MEDIA_FILE, |
107 | extension_name: "gstreamer" , |
108 | priority: 10); |
109 | } |
110 | |
111 | G_GNUC_NORETURN |
112 | void |
113 | g_io_module_unload (GIOModule *module) |
114 | { |
115 | g_assert_not_reached (); |
116 | } |
117 | |
118 | char ** |
119 | g_io_module_query (void) |
120 | { |
121 | char *eps[] = { |
122 | (char *) GTK_MEDIA_FILE_EXTENSION_POINT_NAME, |
123 | NULL |
124 | }; |
125 | |
126 | return g_strdupv (str_array: eps); |
127 | } |
128 | |
129 | static void |
130 | gtk_gst_media_file_ensure_prepared (GtkGstMediaFile *self) |
131 | { |
132 | GstPlayerMediaInfo *media_info; |
133 | |
134 | if (gtk_media_stream_is_prepared (self: GTK_MEDIA_STREAM (ptr: self))) |
135 | return; |
136 | |
137 | media_info = gst_player_get_media_info (player: self->player); |
138 | if (media_info) |
139 | { |
140 | GstClockTime duration = gst_player_media_info_get_duration (info: media_info); |
141 | |
142 | gtk_media_stream_stream_prepared (self: GTK_MEDIA_STREAM (ptr: self), |
143 | has_audio: gst_player_media_info_get_audio_streams (info: media_info) != NULL, |
144 | has_video: gst_player_media_info_get_video_streams (info: media_info) != NULL, |
145 | seekable: gst_player_media_info_is_seekable (info: media_info), |
146 | duration: duration == GST_CLOCK_TIME_NONE ? 0 : FROM_GST_TIME (duration)); |
147 | |
148 | g_object_unref (object: media_info); |
149 | } |
150 | else |
151 | { |
152 | /* Assuming everything exists is better for the user than pretending it doesn't exist. |
153 | * Better to be able to control non-existing audio than not be able to control existing audio. |
154 | * |
155 | * Only for seeking we can't do a thing, because with 0 duration we can't seek anywhere. |
156 | */ |
157 | gtk_media_stream_stream_prepared (self: GTK_MEDIA_STREAM (ptr: self), |
158 | TRUE, |
159 | TRUE, |
160 | FALSE, |
161 | duration: 0); |
162 | } |
163 | } |
164 | |
165 | static void |
166 | gtk_gst_media_file_position_updated_cb (GstPlayer *player, |
167 | GstClockTime time, |
168 | GtkGstMediaFile *self) |
169 | { |
170 | gtk_gst_media_file_ensure_prepared (self); |
171 | |
172 | gtk_media_stream_update (self: GTK_MEDIA_STREAM (ptr: self), FROM_GST_TIME (time)); |
173 | } |
174 | |
175 | static void |
176 | gtk_gst_media_file_seek_done_cb (GstPlayer *player, |
177 | GstClockTime time, |
178 | GtkGstMediaFile *self) |
179 | { |
180 | /* if we're not seeking, we're doing the loop seek-back after EOS */ |
181 | if (gtk_media_stream_is_seeking (self: GTK_MEDIA_STREAM (ptr: self))) |
182 | gtk_media_stream_seek_success (self: GTK_MEDIA_STREAM (ptr: self)); |
183 | gtk_media_stream_update (self: GTK_MEDIA_STREAM (ptr: self), FROM_GST_TIME (time)); |
184 | } |
185 | |
186 | static void |
187 | gtk_gst_media_file_error_cb (GstPlayer *player, |
188 | GError *error, |
189 | GtkGstMediaFile *self) |
190 | { |
191 | if (gtk_media_stream_get_error (self: GTK_MEDIA_STREAM (ptr: self))) |
192 | return; |
193 | |
194 | gtk_media_stream_gerror (self: GTK_MEDIA_STREAM (ptr: self), |
195 | error: g_error_copy (error)); |
196 | } |
197 | |
198 | static void |
199 | gtk_gst_media_file_end_of_stream_cb (GstPlayer *player, |
200 | GtkGstMediaFile *self) |
201 | { |
202 | gtk_gst_media_file_ensure_prepared (self); |
203 | |
204 | if (gtk_media_stream_get_ended (self: GTK_MEDIA_STREAM (ptr: self))) |
205 | return; |
206 | |
207 | if (gtk_media_stream_get_loop (self: GTK_MEDIA_STREAM (ptr: self))) |
208 | { |
209 | gst_player_seek (player: self->player, position: 0); |
210 | return; |
211 | } |
212 | |
213 | gtk_media_stream_stream_ended (self: GTK_MEDIA_STREAM (ptr: self)); |
214 | } |
215 | |
216 | static void |
217 | gtk_gst_media_file_destroy_player (GtkGstMediaFile *self) |
218 | { |
219 | if (self->player == NULL) |
220 | return; |
221 | |
222 | g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_position_updated_cb, self); |
223 | g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_end_of_stream_cb, self); |
224 | g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_seek_done_cb, self); |
225 | g_signal_handlers_disconnect_by_func (self->player, gtk_gst_media_file_error_cb, self); |
226 | g_object_unref (object: self->player); |
227 | self->player = NULL; |
228 | } |
229 | |
230 | static void |
231 | gtk_gst_media_file_create_player (GtkGstMediaFile *file) |
232 | { |
233 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: file); |
234 | |
235 | if (self->player != NULL) |
236 | return; |
237 | |
238 | self->player = gst_player_new (GST_PLAYER_VIDEO_RENDERER (g_object_ref (self->paintable)), |
239 | signal_dispatcher: gst_player_g_main_context_signal_dispatcher_new (NULL)); |
240 | g_signal_connect (self->player, "position-updated" , G_CALLBACK (gtk_gst_media_file_position_updated_cb), self); |
241 | g_signal_connect (self->player, "end-of-stream" , G_CALLBACK (gtk_gst_media_file_end_of_stream_cb), self); |
242 | g_signal_connect (self->player, "seek-done" , G_CALLBACK (gtk_gst_media_file_seek_done_cb), self); |
243 | g_signal_connect (self->player, "error" , G_CALLBACK (gtk_gst_media_file_error_cb), self); |
244 | } |
245 | |
246 | static void |
247 | gtk_gst_media_file_open (GtkMediaFile *media_file) |
248 | { |
249 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: media_file); |
250 | GFile *file; |
251 | |
252 | gtk_gst_media_file_create_player (file: self); |
253 | |
254 | file = gtk_media_file_get_file (self: media_file); |
255 | |
256 | if (file) |
257 | { |
258 | /* XXX: This is technically incorrect because GFile uris aren't real uris */ |
259 | char *uri = g_file_get_uri (file); |
260 | |
261 | gst_player_set_uri (player: self->player, uri); |
262 | |
263 | g_free (mem: uri); |
264 | } |
265 | else |
266 | { |
267 | /* It's an input stream */ |
268 | g_assert_not_reached (); |
269 | } |
270 | |
271 | gst_player_pause (player: self->player); |
272 | } |
273 | |
274 | static void |
275 | gtk_gst_media_file_close (GtkMediaFile *file) |
276 | { |
277 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: file); |
278 | |
279 | gtk_gst_media_file_destroy_player (self); |
280 | } |
281 | |
282 | static gboolean |
283 | gtk_gst_media_file_play (GtkMediaStream *stream) |
284 | { |
285 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: stream); |
286 | |
287 | if (self->player == NULL) |
288 | return FALSE; |
289 | |
290 | gst_player_play (player: self->player); |
291 | |
292 | return TRUE; |
293 | } |
294 | |
295 | static void |
296 | gtk_gst_media_file_pause (GtkMediaStream *stream) |
297 | { |
298 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: stream); |
299 | |
300 | gst_player_pause (player: self->player); |
301 | } |
302 | |
303 | static void |
304 | gtk_gst_media_file_seek (GtkMediaStream *stream, |
305 | gint64 timestamp) |
306 | { |
307 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: stream); |
308 | |
309 | gst_player_seek (player: self->player, TO_GST_TIME (timestamp)); |
310 | } |
311 | |
312 | static void |
313 | gtk_gst_media_file_update_audio (GtkMediaStream *stream, |
314 | gboolean muted, |
315 | double volume) |
316 | { |
317 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: stream); |
318 | |
319 | gst_player_set_mute (player: self->player, val: muted); |
320 | gst_player_set_volume (player: self->player, val: volume * volume * volume); |
321 | } |
322 | |
323 | static void |
324 | gtk_gst_media_file_realize (GtkMediaStream *stream, |
325 | GdkSurface *surface) |
326 | { |
327 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: stream); |
328 | |
329 | gtk_gst_paintable_realize (self: GTK_GST_PAINTABLE (ptr: self->paintable), surface); |
330 | } |
331 | |
332 | static void |
333 | gtk_gst_media_file_unrealize (GtkMediaStream *stream, |
334 | GdkSurface *surface) |
335 | { |
336 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: stream); |
337 | |
338 | gtk_gst_paintable_unrealize (self: GTK_GST_PAINTABLE (ptr: self->paintable), surface); |
339 | } |
340 | |
341 | static void |
342 | gtk_gst_media_file_dispose (GObject *object) |
343 | { |
344 | GtkGstMediaFile *self = GTK_GST_MEDIA_FILE (ptr: object); |
345 | |
346 | gtk_gst_media_file_destroy_player (self); |
347 | if (self->paintable) |
348 | { |
349 | g_signal_handlers_disconnect_by_func (self->paintable, gdk_paintable_invalidate_size, self); |
350 | g_signal_handlers_disconnect_by_func (self->paintable, gdk_paintable_invalidate_contents, self); |
351 | g_clear_object (&self->paintable); |
352 | } |
353 | |
354 | G_OBJECT_CLASS (gtk_gst_media_file_parent_class)->dispose (object); |
355 | } |
356 | |
357 | static void |
358 | gtk_gst_media_file_class_init (GtkGstMediaFileClass *klass) |
359 | { |
360 | GtkMediaFileClass *file_class = GTK_MEDIA_FILE_CLASS (ptr: klass); |
361 | GtkMediaStreamClass *stream_class = GTK_MEDIA_STREAM_CLASS (ptr: klass); |
362 | GObjectClass *gobject_class = G_OBJECT_CLASS (klass); |
363 | |
364 | file_class->open = gtk_gst_media_file_open; |
365 | file_class->close = gtk_gst_media_file_close; |
366 | |
367 | stream_class->play = gtk_gst_media_file_play; |
368 | stream_class->pause = gtk_gst_media_file_pause; |
369 | stream_class->seek = gtk_gst_media_file_seek; |
370 | stream_class->update_audio = gtk_gst_media_file_update_audio; |
371 | stream_class->realize = gtk_gst_media_file_realize; |
372 | stream_class->unrealize = gtk_gst_media_file_unrealize; |
373 | |
374 | gobject_class->dispose = gtk_gst_media_file_dispose; |
375 | } |
376 | |
377 | static void |
378 | gtk_gst_media_file_init (GtkGstMediaFile *self) |
379 | { |
380 | self->paintable = gtk_gst_paintable_new (); |
381 | g_signal_connect_swapped (self->paintable, "invalidate-size" , G_CALLBACK (gdk_paintable_invalidate_size), self); |
382 | g_signal_connect_swapped (self->paintable, "invalidate-contents" , G_CALLBACK (gdk_paintable_invalidate_contents), self); |
383 | } |
384 | |
385 | |