source: roaraudio/plugins/gstreamer0.10/roarmixer.c @ 2117:2e7146368ea6

Last change on this file since 2117:2e7146368ea6 was 2117:2e7146368ea6, checked in by phi, 15 years ago

added support for non-default roard...
File size: 12.3 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  g_return_val_if_fail(device != NULL, NULL);
163
164  ret = g_new0(GstRoarMixer, 1);
165
166  ret->device = g_strdup(device);
167  ret->dir    = dir;
168  ret->cardname = g_strdup("RoarAudio Default Device");
169
170/*
171  if (!gst_ossmixer_open (ret))
172    goto error;
173*/
174
175  if ( roar_simple_connect(&(ret->con), (char*)device, "gstroarmixer") == -1 )
176   goto error;
177
178  ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = %p", device, dir, ret);
179  return ret;
180
181error:
182  if (ret)
183    gst_roarmixer_free (ret);
184
185  ROAR_WARN("gst_roarmixer_new(device='%s', dir=0x%.4x) = NULL // Error?", device, dir);
186  return NULL;
187}
188
189void            gst_roarmixer_free               (GstRoarMixer *mixer) {
190  g_return_if_fail(mixer != NULL);
191
192  ROAR_WARN("gst_roarmixer_free(mixer=%p) = ?", mixer);
193
194  if (mixer->device) {
195    g_free(mixer->device);
196    mixer->device = NULL;
197  }
198
199  if (mixer->cardname) {
200    g_free(mixer->cardname);
201    mixer->cardname = NULL;
202  }
203
204  if (mixer->tracklist) {
205    g_list_foreach(mixer->tracklist, (GFunc) g_object_unref, NULL);
206    g_list_free(mixer->tracklist);
207    mixer->tracklist = NULL;
208  }
209
210  roar_disconnect(&(mixer->con));
211
212  g_free (mixer);
213
214  ROAR_WARN("gst_roarmixer_free(mixer=%p) = (void)", mixer);
215}
216
217/* unused with G_DISABLE_* */
218static G_GNUC_UNUSED gboolean gst_roarmixer_contains_track (GstRoarMixer * mixer,
219                                                            GstRoarMixerTrack * roartrack) {
220  const GList *item;
221
222  for (item = mixer->tracklist; item != NULL; item = item->next)
223    if (item->data == roartrack)
224      return TRUE;
225
226  return FALSE;
227}
228
229void            gst_roarmixer_updatestreamlist   (GstRoarMixer *mixer) {
230  gint  i      = 0;
231  gint num;
232  gint id[ROAR_STREAMS_MAX];
233  GstMixerTrack *track;
234
235  ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = ?", mixer);
236
237  if (mixer->tracklist) {
238    ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = (void)", mixer);
239    return;
240  }
241
242  if ( (num = roar_list_streams(&(mixer->con), id, ROAR_STREAMS_MAX)) == -1 ) {
243    return;
244  }
245
246
247  for (i = 0; i < num; i++) {
248   track = gst_roarmixer_track_new(mixer, id[i]);
249   mixer->tracklist = g_list_append(mixer->tracklist, track);
250  }
251
252  ROAR_WARN("gst_roarmixer_updatestreamlist(mixer=%p) = (void)", mixer);
253}
254
255const GList*    gst_roarmixer_list_tracks        (GstRoarMixer * mixer) {
256 ROAR_WARN("gst_roarmixer_list_tracks(mixer=%p) = ?", mixer);
257
258 gst_roarmixer_updatestreamlist(mixer);
259
260 return (const GList *) mixer->tracklist;
261}
262
263void            gst_roarmixer_set_volume         (GstRoarMixer * mixer,
264                                                 GstMixerTrack * track,
265                                                 gint * volumes) {
266
267 GstRoarMixerTrack *roartrack = GST_ROARMIXER_TRACK(track);
268 int channels;
269 struct roar_mixer_settings m;
270 gint i;
271
272
273 g_return_if_fail(gst_roarmixer_contains_track(mixer, roartrack));
274
275 if ( roar_get_vol(&(mixer->con), roartrack->stream_id, &m, &channels) == -1 ) {
276  ROAR_WARN("gst_roarmixer_get_volume(*): can not get mixer infos for stream %i", roartrack->stream_id);
277  return;
278 }
279
280 if ( channels != track->num_channels ) {
281  ROAR_WARN("gst_roarmixer_get_volume(*): numer of channels for stream %i mismatch", roartrack->stream_id);
282
283  if ( track->num_channels < channels )
284   channels = track->num_channels;
285 }
286
287 for (i = 0; i < channels; i++) {
288  m.mixer[i] = volumes[i];
289 }
290
291 roar_set_vol(&(mixer->con), roartrack->stream_id, &m, channels);
292}
293
294void            gst_roarmixer_get_volume         (GstRoarMixer * mixer,
295                                                 GstMixerTrack * track,
296                                                 gint * volumes) {
297 GstRoarMixerTrack *roartrack = GST_ROARMIXER_TRACK(track);
298 int channels;
299 struct roar_mixer_settings m;
300 gint i;
301
302
303 g_return_if_fail(gst_roarmixer_contains_track(mixer, roartrack));
304
305 if ( roar_get_vol(&(mixer->con), roartrack->stream_id, &m, &channels) == -1 ) {
306  ROAR_WARN("gst_roarmixer_get_volume(*): can not get mixer infos for stream %i", roartrack->stream_id);
307  return;
308 }
309
310 if ( channels != track->num_channels ) {
311  ROAR_WARN("gst_roarmixer_get_volume(*): numer of channels for stream %i mismatch", roartrack->stream_id);
312
313  if ( track->num_channels < channels )
314   channels = track->num_channels;
315 }
316
317 for (i = 0; i < channels; i++) {
318  volumes[i] = m.mixer[i];
319 }
320}
321void            gst_roarmixer_set_record         (GstRoarMixer * mixer,
322                                                 GstMixerTrack * track,
323                                                 gboolean record) {
324}
325void            gst_roarmixer_set_mute           (GstRoarMixer * mixer,
326                                                 GstMixerTrack * track,
327                                                 gboolean mute) {
328  GstRoarMixerTrack *roartrack = GST_ROARMIXER_TRACK(track);
329  struct roar_stream s;
330
331  g_return_if_fail(gst_roarmixer_contains_track(mixer, roartrack));
332
333  roar_stream_new_by_id(&s, roartrack->stream_id);
334
335  if (mute) {
336    roar_stream_set_flags(&(mixer->con), &s, ROAR_FLAG_MUTE, ROAR_SET_FLAG);
337  } else {
338    roar_stream_set_flags(&(mixer->con), &s, ROAR_FLAG_MUTE, ROAR_RESET_FLAG);
339  }
340}
341
342// tracks:
343#define MASK_BIT_IS_SET(mask, bit) \
344  (mask & (1 << bit))
345
346static void
347gst_roarmixer_track_class_init (GstRoarMixerTrackClass * klass)
348{
349  /* nop */
350}
351
352static void
353gst_roarmixer_track_init (GstRoarMixerTrack * track)
354{
355  //memset(track, 0, sizeof(*track));
356  track->stream_id = -1;
357}
358
359GstMixerTrack *
360gst_roarmixer_track_new (GstRoarMixer * mixer,
361    gint stream_id)
362{
363  GstRoarMixerTrack *roartrack;
364  GstMixerTrack *track;
365  struct roar_stream s;
366  struct roar_client c;
367  struct roar_meta   m;
368  gint flags = 0;
369  gchar buf[1024];
370  int num;
371  int id[ROAR_CLIENTS_MAX];
372  char * clientname = NULL;
373  char * metaname   = NULL;
374  char   streamname[1024] = {0};
375  gint i, h;
376
377  ROAR_WARN("gst_roarmixer_track_new(mixer=%p, stream_id=%i) = ?", mixer, stream_id);
378
379  if ( roar_get_stream(&(mixer->con), &s, stream_id) == -1 ) {
380    return NULL;
381  }
382
383 // TODO: find something more efficent:
384
385 if ( (num = roar_list_clients(&(mixer->con), id, ROAR_CLIENTS_MAX)) != -1 ) {
386  for (i = 0; i < num; i++) {
387   ROAR_WARN("gst_roarmixer_track_new(*): stream %i -->> client %i?", stream_id, id[i]);
388   if ( roar_get_client(&(mixer->con), &c, id[i]) != -1 ) {
389    for (h = 0; h < ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT; h++) {
390     ROAR_WARN("gst_roarmixer_track_new(*): stream %i <-> %i -->> client %i?", stream_id, c.streams[h], id[i]);
391     if ( c.streams[h] == stream_id ) {
392      clientname = c.name;
393      h = ROAR_CLIENTS_MAX_STREAMS_PER_CLIENT;
394      i = num;
395     }
396    }
397   }
398  }
399 }
400
401 m.type = ROAR_META_TYPE_TITLE;
402 if ( roar_stream_meta_get(&(mixer->con), &s, &m) != -1 ) {
403  metaname = m.value;
404 }
405
406 if ( roar_stream_get_name(&(mixer->con), &s, streamname, 1024) != 0 )
407  *streamname = 0;
408
409  switch (s.dir) {
410   case ROAR_DIR_PLAY:
411     flags |= GST_MIXER_TRACK_OUTPUT;
412    break;
413   case ROAR_DIR_OUTPUT:
414     flags |= GST_MIXER_TRACK_MASTER;
415   case ROAR_DIR_MONITOR:
416     flags |= GST_MIXER_TRACK_OUTPUT;
417    break;
418  }
419
420  if ( !*streamname && metaname == NULL )
421   sprintf(streamname, "[Stream %i]", stream_id);
422
423  sprintf(buf, "%s\n%s",  clientname ? clientname : "[Unknown]",
424                         *streamname ? streamname : metaname
425                         );
426
427  roartrack = g_object_new(GST_TYPE_ROARMIXER_TRACK, NULL);
428  ROAR_WARN("gst_roarmixer_track_new(*): roartrack=%p", roartrack);
429  track               = GST_MIXER_TRACK(roartrack);
430  track->label        = g_strdup(buf);
431  track->num_channels = s.info.channels;
432  track->flags        = flags;
433  track->min_volume   = 0;
434  track->max_volume   = 65535;
435  roartrack->stream_id = stream_id;
436
437  /* volume */
438  ROAR_WARN("gst_roarmixer_track_new(mixer=%p, stream_id=%i) = %p", mixer, stream_id, track);
439  return track;
440}
441
442//ll
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