source: roaraudio/plugins/gstreamer0.10/roarmixer.c @ 2118:7f4531e98b2d

Last change on this file since 2118:7f4531e98b2d was 2118:7f4531e98b2d, checked in by phi, 15 years ago

of cause may the device be NULL
File size: 12.2 KB
Line 
1//roarmixer.c:
2/* GStreamer
3 * Copyright (C) <2005> Arwed v. Merkatz <v.merkatz@gmx.net>
4 * Copyright (C) <2008> Philipp 'ph3-der-loewe' Schafft
5 * Copyright (C) <2009> Philipp 'ph3-der-loewe' Schafft
6 *                            <lion@lion.leolix.org>
7 *
8 * roarmixer.h: an RoarAudio audio mixer
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Library General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18 * Library General Public License for more details.
19 *
20 * You should have received a copy of the GNU Library General Public
21 * License along with this library; if not, write to the
22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 * Boston, MA 02111-1307, USA.
24 */
25
26
27#include "roarmixer.h"
28
29GST_DEBUG_CATEGORY_EXTERN (roar_debug);
30#define GST_CAT_DEFAULT roar_debug
31
32enum
33{
34  PROP_DEVICE_NAME = 1
35};
36
37
38static const GstElementDetails gst_roar_mixer_element_details =
39GST_ELEMENT_DETAILS ("RoarAudio Mixer",
40    "Generic/Audio",
41    "Control sound input and output levels with RoarAudio",
42    "Philipp 'ph3-der-loewe' Schafft <lion@lion.leolix.org>");
43
44GST_BOILERPLATE_WITH_INTERFACE (GstRoarMixerElement, gst_roar_mixer_element,
45    GstElement, GST_TYPE_ELEMENT, GstMixer, GST_TYPE_MIXER,
46    gst_roar_mixer_element);
47
48GST_IMPLEMENT_ROAR_MIXER_METHODS (GstRoarMixerElement, gst_roar_mixer_element);
49
50static GstStateChangeReturn gst_roar_mixer_element_change_state (GstElement *
51    element, GstStateChange transition);
52
53static void gst_roar_mixer_element_get_property (GObject * object,
54    guint prop_id, GValue * value, GParamSpec * pspec);
55
56static void
57gst_roar_mixer_element_base_init (gpointer klass)
58{
59  gst_element_class_set_details (GST_ELEMENT_CLASS (klass),
60      &gst_roar_mixer_element_details);
61}
62
63static void
64gst_roar_mixer_element_class_init (GstRoarMixerElementClass * klass)
65{
66  GstElementClass *element_class;
67  GObjectClass *gobject_class;
68
69  element_class = (GstElementClass *) klass;
70  gobject_class = (GObjectClass *) klass;
71
72  gobject_class->get_property = gst_roar_mixer_element_get_property;
73
74  g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
75      g_param_spec_string ("device-name", "Device name",
76          "Human-readable name of the sound device", "", G_PARAM_READABLE));
77
78  element_class->change_state =
79      GST_DEBUG_FUNCPTR (gst_roar_mixer_element_change_state);
80}
81
82static void
83gst_roar_mixer_element_init (GstRoarMixerElement * this,
84    GstRoarMixerElementClass * g_class)
85{
86  this->mixer = NULL;
87}
88
89static void
90gst_roar_mixer_element_get_property (GObject * object, guint prop_id,
91    GValue * value, GParamSpec * pspec)
92{
93  GstRoarMixerElement *this = GST_ROAR_MIXER_ELEMENT (object);
94
95  switch (prop_id) {
96    case PROP_DEVICE_NAME:
97      if (this->mixer) {
98        g_value_set_string (value, this->mixer->cardname);
99      } else {
100        g_value_set_string (value, NULL);
101      }
102      break;
103    default:
104      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
105      break;
106  }
107}
108
109static GstStateChangeReturn
110gst_roar_mixer_element_change_state (GstElement * element,
111    GstStateChange transition)
112{
113  GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
114  GstRoarMixerElement *this = GST_ROAR_MIXER_ELEMENT (element);
115
116  switch (transition) {
117    case GST_STATE_CHANGE_NULL_TO_READY:
118      if (!this->mixer) {
119        this->mixer = gst_roarmixer_new(NULL, GST_ROAR_MIXER_ALL);
120      }
121      break;
122      break;
123    default:
124      break;
125  }
126
127  ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
128  if (ret == GST_STATE_CHANGE_FAILURE)
129    return ret;
130
131  switch (transition) {
132    case GST_STATE_CHANGE_READY_TO_NULL:
133      if (this->mixer) {
134        gst_roarmixer_free (this->mixer);
135        this->mixer = NULL;
136      }
137      break;
138    default:
139      break;
140  }
141
142  return ret;
143}
144
145
146gboolean gst_roarmixer_factory_init (GstPlugin * plugin) {
147  if (!gst_element_register(plugin, "roarmixer", GST_RANK_MARGINAL,
148                            GST_TYPE_ROAR_MIXER_ELEMENT))
149    return FALSE;
150
151  return TRUE;
152}
153
154G_DEFINE_TYPE (GstRoarMixerTrack, gst_roarmixer_track, GST_TYPE_MIXER_TRACK);
155
156GstRoarMixer*    gst_roarmixer_new                (const gchar *device,
157                                                 GstRoarMixerDirection dir) {
158  GstRoarMixer *ret = NULL;
159
160  ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = ?", device, dir);
161
162  ret = g_new0(GstRoarMixer, 1);
163
164  ret->device = g_strdup(device);
165  ret->dir    = dir;
166  ret->cardname = g_strdup("RoarAudio Default Device");
167
168/*
169  if (!gst_ossmixer_open (ret))
170    goto error;
171*/
172
173  if ( roar_simple_connect(&(ret->con), (char*)device, "gstroarmixer") == -1 )
174   goto error;
175
176  ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = %p", device, dir, ret);
177  return ret;
178
179error:
180  if (ret)
181    gst_roarmixer_free (ret);
182
183  ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = NULL // Error?", device, dir);
184  return NULL;
185}
186
187void            gst_roarmixer_free               (GstRoarMixer *mixer) {
188  g_return_if_fail(mixer != NULL);
189
190  ROAR_WARN("gst_roarmixer_free(mixer=%p) = ?", mixer);
191
192  if (mixer->device) {
193    g_free(mixer->device);
194    mixer->device = NULL;
195  }
196
197  if (mixer->cardname) {
198    g_free(mixer->cardname);
199    mixer->cardname = NULL;
200  }
201
202  if (mixer->tracklist) {
203    g_list_foreach(mixer->tracklist, (GFunc) g_object_unref, NULL);
204    g_list_free(mixer->tracklist);
205    mixer->tracklist = NULL;
206  }
207
208  roar_disconnect(&(mixer->con));
209
210  g_free (mixer);
211
212  ROAR_WARN("gst_roarmixer_free(mixer=%p) = (void)", mixer);
213}
214
215/* unused with G_DISABLE_* */
216static G_GNUC_UNUSED gboolean gst_roarmixer_contains_track (GstRoarMixer * mixer,
217                                                            GstRoarMixerTrack * roartrack) {
218  const GList *item;
219
220  for (item = mixer->tracklist; item != NULL; item = item->next)
221    if (item->data == roartrack)
222      return TRUE;
223
224  return FALSE;
225}
226
227void            gst_roarmixer_updatestreamlist   (GstRoarMixer *mixer) {
228  gint  i      = 0;
229  gint num;
230  gint id[ROAR_STREAMS_MAX];
231  GstMixerTrack *track;
232
233  ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = ?", mixer);
234
235  if (mixer->tracklist) {
236    ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = (void)", mixer);
237    return;
238  }
239
240  if ( (num = roar_list_streams(&(mixer->con), id, ROAR_STREAMS_MAX)) == -1 ) {
241    return;
242  }
243
244
245  for (i = 0; i < num; i++) {
246   track = gst_roarmixer_track_new(mixer, id[i]);
247   mixer->tracklist = g_list_append(mixer->tracklist, track);
248  }
249
250  ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = (void)", mixer);
251}
252
253const GList*    gst_roarmixer_list_tracks        (GstRoarMixer * mixer) {
254 ROAR_WARN("gst_roarmixer_list_tracks(mixer=%p) = ?", mixer);
255
256 gst_roarmixer_updatestreamlist(mixer);
257
258 return (const GList *) mixer->tracklist;
259}
260
261void            gst_roarmixer_set_volume         (GstRoarMixer * mixer,
262                                                 GstMixerTrack * track,
263                                                 gint * volumes) {
264
265 GstRoarMixerTrack *roartrack = GST_ROARMIXER_TRACK(track);
266 int channels;
267 struct roar_mixer_settings m;
268 gint i;
269
270
271 g_return_if_fail(gst_roarmixer_contains_track(mixer, roartrack));
272
273 if ( roar_get_vol(&(mixer->con), roartrack->stream_id, &m, &channels) == -1 ) {
274  ROAR_WARN("gst_roarmixer_get_volume(*): can not get mixer infos for stream %i", roartrack->stream_id);
275  return;
276 }
277
278 if ( channels != track->num_channels ) {
279  ROAR_WARN("gst_roarmixer_get_volume(*): numer of channels for stream %i mismatch", roartrack->stream_id);
280
281  if ( track->num_channels < channels )
282   channels = track->num_channels;
283 }
284
285 for (i = 0; i < channels; i++) {
286  m.mixer[i] = volumes[i];
287 }
288
289 roar_set_vol(&(mixer->con), roartrack->stream_id, &m, channels);
290}
291
292void            gst_roarmixer_get_volume         (GstRoarMixer * mixer,
293                                                 GstMixerTrack * track,
294                                                 gint * volumes) {
295 GstRoarMixerTrack *roartrack = GST_ROARMIXER_TRACK(track);
296 int channels;
297 struct roar_mixer_settings m;
298 gint i;
299
300
301 g_return_if_fail(gst_roarmixer_contains_track(mixer, roartrack));
302
303 if ( roar_get_vol(&(mixer->con), roartrack->stream_id, &m, &channels) == -1 ) {
304  ROAR_WARN("gst_roarmixer_get_volume(*): can not get mixer infos for stream %i", roartrack->stream_id);
305  return;
306 }
307
308 if ( channels != track->num_channels ) {
309  ROAR_WARN("gst_roarmixer_get_volume(*): numer of channels for stream %i mismatch", roartrack->stream_id);
310
311  if ( track->num_channels < channels )
312   channels = track->num_channels;
313 }
314
315 for (i = 0; i < channels; i++) {
316  volumes[i] = m.mixer[i];
317 }
318}
319void            gst_roarmixer_set_record         (GstRoarMixer * mixer,
320                                                 GstMixerTrack * track,
321                                                 gboolean record) {
322}
323void            gst_roarmixer_set_mute           (GstRoarMixer * mixer,
324                                                 GstMixerTrack * track,
325                                                 gboolean mute) {
326  GstRoarMixerTrack *roartrack = GST_ROARMIXER_TRACK(track);
327  struct roar_stream s;
328
329  g_return_if_fail(gst_roarmixer_contains_track(mixer, roartrack));
330
331  roar_stream_new_by_id(&s, roartrack->stream_id);
332
333  if (mute) {
334    roar_stream_set_flags(&(mixer->con), &s, ROAR_FLAG_MUTE, ROAR_SET_FLAG);
335  } else {
336    roar_stream_set_flags(&(mixer->con), &s, ROAR_FLAG_MUTE, ROAR_RESET_FLAG);
337  }
338}
339
340// tracks:
341#define MASK_BIT_IS_SET(mask, bit) \
342  (mask & (1 << bit))
343
344static void
345gst_roarmixer_track_class_init (GstRoarMixerTrackClass * klass)
346{
347  /* nop */
348}
349
350static void
351gst_roarmixer_track_init (GstRoarMixerTrack * track)
352{
353  //memset(track, 0, sizeof(*track));
354  track->stream_id = -1;
355}
356
357GstMixerTrack *
358gst_roarmixer_track_new (GstRoarMixer * mixer,
359    gint stream_id)
360{
361  GstRoarMixerTrack *roartrack;
362  GstMixerTrack *track;
363  struct roar_stream s;
364  struct roar_client c;
365  struct roar_meta   m;
366  gint flags = 0;
367  gchar buf[1024];
368  int num;
369  int id[ROAR_CLIENTS_MAX];
370  char * clientname = NULL;
371  char * metaname   = NULL;
372  char   streamname[1024] = {0};
373  gint i, h;
374
375  ROAR_WARN("gst_roarmixer_track_new(mixer=%p, stream_id=%i) = ?", mixer, stream_id);
376
377  if ( roar_get_stream(&(mixer->con), &s, stream_id) == -1 ) {
378    return NULL;
379  }
380
381 // TODO: find something more efficent:
382
383 if ( (num = roar_list_clients(&(mixer->con), id, ROAR_CLIENTS_MAX)) != -1 ) {
384  for (i = 0; i < num; i++) {
385   ROAR_WARN("gst_roarmixer_track_new(*): stream %i -->> client %i?", stream_id, id[i]);
386   if ( roar_get_client(&(mixer->con), &c, id[i]) != -1 ) {
387    for (h = 0; h < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; h++) {
388     ROAR_WARN("gst_roarmixer_track_new(*): stream %i <-> %i -->> client %i?", stream_id, c.streams[h], id[i]);
389     if ( c.streams[h] == stream_id ) {
390      clientname = c.name;
391      h = ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT;
392      i = num;
393     }
394    }
395   }
396  }
397 }
398
399 m.type = ROAR_META_TYPE_TITLE;
400 if ( roar_stream_meta_get(&(mixer->con), &s, &m) != -1 ) {
401  metaname = m.value;
402 }
403
404 if ( roar_stream_get_name(&(mixer->con), &s, streamname, 1024) != 0 )
405  *streamname = 0;
406
407  switch (s.dir) {
408   case ROAR_DIR_PLAY:
409     flags |= GST_MIXER_TRACK_OUTPUT;
410    break;
411   case ROAR_DIR_OUTPUT:
412     flags |= GST_MIXER_TRACK_MASTER;
413   case ROAR_DIR_MONITOR:
414     flags |= GST_MIXER_TRACK_OUTPUT;
415    break;
416  }
417
418  if ( !*streamname && metaname == NULL )
419   sprintf(streamname, "[Stream %i]", stream_id);
420
421  sprintf(buf, "%s\n%s",  clientname ? clientname : "[Unknown]",
422                         *streamname ? streamname : metaname
423                         );
424
425  roartrack = g_object_new(GST_TYPE_ROARMIXER_TRACK, NULL);
426  ROAR_WARN("gst_roarmixer_track_new(*): roartrack=%p", roartrack);
427  track               = GST_MIXER_TRACK(roartrack);
428  track->label        = g_strdup(buf);
429  track->num_channels = s.info.channels;
430  track->flags        = flags;
431  track->min_volume   = 0;
432  track->max_volume   = 65535;
433  roartrack->stream_id = stream_id;
434
435  /* volume */
436  ROAR_WARN("gst_roarmixer_track_new(mixer=%p, stream_id=%i) = %p", mixer, stream_id, track);
437  return track;
438}
439
440//ll
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