2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2000 Wim Taymans <wim.taymans@chello.be>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library 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 GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
24 #include <sys/types.h>
26 #include <sys/ioctl.h>
28 #include <sys/soundcard.h>
32 #include <gstosssink.h>
34 static GstElementDetails gst_osssink_details = {
37 "Output to a sound card via OSS",
39 "Erik Walthinsen <omega@cse.ogi.edu>, "
40 "Wim Taymans <wim.taymans@chello.be>",
44 static void gst_osssink_class_init (GstOssSinkClass *klass);
45 static void gst_osssink_init (GstOssSink *osssink);
46 static void gst_osssink_finalize (GObject *object);
48 static gboolean gst_osssink_open_audio (GstOssSink *sink);
49 static void gst_osssink_close_audio (GstOssSink *sink);
50 static gboolean gst_osssink_sync_parms (GstOssSink *osssink);
51 static GstElementStateReturn gst_osssink_change_state (GstElement *element);
52 static void gst_osssink_set_clock (GstElement *element, GstClock *clock);
53 static GstClock* gst_osssink_get_clock (GstElement *element);
54 static GstClockTime gst_osssink_get_time (GstClock *clock, gpointer data);
56 static gboolean gst_osssink_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
57 GstFormat *dest_format, gint64 *dest_value);
58 static gboolean gst_osssink_query (GstElement *element, GstPadQueryType type,
59 GstFormat *format, gint64 *value);
60 static gboolean gst_osssink_sink_query (GstPad *pad, GstPadQueryType type,
61 GstFormat *format, gint64 *value);
63 static GstPadConnectReturn gst_osssink_sinkconnect (GstPad *pad, GstCaps *caps);
65 static void gst_osssink_set_property (GObject *object, guint prop_id, const GValue *value,
67 static void gst_osssink_get_property (GObject *object, guint prop_id, GValue *value,
70 static void gst_osssink_chain (GstPad *pad,GstBuffer *buf);
72 /* OssSink signals and args */
91 GST_PAD_TEMPLATE_FACTORY (osssink_sink_factory,
98 "format", GST_PROPS_STRING ("int"), /* hack */
99 "law", GST_PROPS_INT (0),
100 "endianness", GST_PROPS_INT (G_BYTE_ORDER),
101 "signed", GST_PROPS_LIST (
102 GST_PROPS_BOOLEAN (FALSE),
103 GST_PROPS_BOOLEAN (TRUE)
105 "width", GST_PROPS_LIST (
109 "depth", GST_PROPS_LIST (
113 "rate", GST_PROPS_INT_RANGE (1000, 48000),
114 "channels", GST_PROPS_INT_RANGE (1, 2)
118 #define GST_TYPE_OSSSINK_CHANNELS (gst_osssink_channels_get_type())
120 gst_osssink_channels_get_type(void) {
121 static GType osssink_channels_type = 0;
122 static GEnumValue osssink_channels[] = {
128 if (!osssink_channels_type) {
129 osssink_channels_type = g_enum_register_static("GstAudiosinkChannels", osssink_channels);
131 return osssink_channels_type;
135 static GstElementClass *parent_class = NULL;
136 static guint gst_osssink_signals[LAST_SIGNAL] = { 0 };
139 gst_osssink_get_type (void)
141 static GType osssink_type = 0;
144 static const GTypeInfo osssink_info = {
145 sizeof(GstOssSinkClass),
148 (GClassInitFunc)gst_osssink_class_init,
153 (GInstanceInitFunc)gst_osssink_init,
155 osssink_type = g_type_register_static (GST_TYPE_ELEMENT, "GstOssSink", &osssink_info, 0);
161 static GstBufferPool*
162 gst_osssink_get_bufferpool (GstPad *pad)
166 oss = GST_OSSSINK (gst_pad_get_parent(pad));
168 return oss->sinkpool;
172 gst_osssink_finalize (GObject *object)
174 GstOssSink *osssink = (GstOssSink *) object;
176 g_free (osssink->device);
178 G_OBJECT_CLASS (parent_class)->finalize (object);
182 gst_osssink_class_init (GstOssSinkClass *klass)
184 GObjectClass *gobject_class;
185 GstElementClass *gstelement_class;
187 gobject_class = (GObjectClass*)klass;
188 gstelement_class = (GstElementClass*)klass;
190 parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
192 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE,
193 g_param_spec_string("device","device","device",
194 "/dev/dsp",G_PARAM_READWRITE)); /* CHECKME! */
195 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MUTE,
196 g_param_spec_boolean("mute","mute","mute",
197 TRUE,G_PARAM_READWRITE));
198 g_object_class_install_property (G_OBJECT_CLASS(klass), ARG_SYNC,
199 g_param_spec_boolean("sync","Sync","If syncing on timestamps should be enabled",
200 TRUE, G_PARAM_READWRITE));
202 /* it would be nice to show format in symbolic form, oh well */
203 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FORMAT,
204 g_param_spec_int ("format","format","format",
205 0, G_MAXINT, AFMT_S16_LE, G_PARAM_READWRITE));
207 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CHANNELS,
208 g_param_spec_enum("channels","channels","channels",
209 GST_TYPE_OSSSINK_CHANNELS,2,G_PARAM_READWRITE));
210 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FREQUENCY,
211 g_param_spec_int("frequency","frequency","frequency",
212 0,G_MAXINT,44100,G_PARAM_READWRITE));
213 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_FRAGMENT,
214 g_param_spec_int("fragment","fragment","fragment",
215 0,G_MAXINT,6,G_PARAM_READWRITE));
216 g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BUFFER_SIZE,
217 g_param_spec_int("buffer_size","buffer_size","buffer_size",
218 0,G_MAXINT,4096,G_PARAM_READWRITE));
220 gst_osssink_signals[SIGNAL_HANDOFF] =
221 g_signal_new("handoff",G_TYPE_FROM_CLASS(klass), G_SIGNAL_RUN_LAST,
222 G_STRUCT_OFFSET(GstOssSinkClass,handoff), NULL, NULL,
223 g_cclosure_marshal_VOID__VOID,G_TYPE_NONE,0);
225 gobject_class->set_property = gst_osssink_set_property;
226 gobject_class->get_property = gst_osssink_get_property;
227 gobject_class->finalize = gst_osssink_finalize;
229 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_osssink_change_state);
230 gstelement_class->query = GST_DEBUG_FUNCPTR (gst_osssink_query);
234 gst_osssink_init (GstOssSink *osssink)
236 osssink->sinkpad = gst_pad_new_from_template (
237 GST_PAD_TEMPLATE_GET (osssink_sink_factory), "sink");
238 gst_element_add_pad (GST_ELEMENT (osssink), osssink->sinkpad);
239 gst_pad_set_connect_function (osssink->sinkpad, gst_osssink_sinkconnect);
240 gst_pad_set_bufferpool_function (osssink->sinkpad, gst_osssink_get_bufferpool);
241 gst_pad_set_convert_function (osssink->sinkpad, gst_osssink_convert);
242 gst_pad_set_query_function (osssink->sinkpad, gst_osssink_sink_query);
244 gst_pad_set_chain_function (osssink->sinkpad, gst_osssink_chain);
246 osssink->device = g_strdup ("/dev/dsp");
248 osssink->channels = 1;
249 osssink->frequency = 11025;
250 osssink->fragment = 6;
251 /* AFMT_*_BE not available on all OSS includes (e.g. FBSD) */
252 #ifdef WORDS_BIGENDIAN
253 osssink->format = AFMT_S16_BE;
255 osssink->format = AFMT_S16_LE;
256 #endif /* WORDS_BIGENDIAN */
257 osssink->bufsize = 4096;
259 osssink->resync = FALSE;
260 osssink->sync = TRUE;
261 /* 6 buffers per chunk by default */
262 osssink->sinkpool = gst_buffer_pool_get_default (osssink->bufsize, 6);
263 osssink->provided_clock = GST_CLOCK (gst_oss_clock_new ("ossclock", gst_osssink_get_time, osssink));
264 osssink->handled = 0;
266 GST_ELEMENT (osssink)->setclockfunc = gst_osssink_set_clock;
267 GST_ELEMENT (osssink)->getclockfunc = gst_osssink_get_clock;
269 GST_FLAG_SET (osssink, GST_ELEMENT_THREAD_SUGGESTED);
270 GST_FLAG_SET (osssink, GST_ELEMENT_EVENT_AWARE);
274 static GstPadConnectReturn
275 gst_osssink_sinkconnect (GstPad *pad, GstCaps *caps)
277 gint law, endianness, depth;
280 GstOssSink *osssink = GST_OSSSINK (gst_pad_get_parent (pad));
282 if (!GST_CAPS_IS_FIXED (caps))
283 return GST_PAD_CONNECT_DELAYED;
285 gst_caps_get_int (caps, "width", &osssink->width);
286 gst_caps_get_int (caps, "depth", &depth);
288 if (osssink->width != depth)
289 return GST_PAD_CONNECT_REFUSED;
291 /* laws 1 and 2 are 1 bps anyway */
294 gst_caps_get_int (caps, "law", &law);
295 gst_caps_get_int (caps, "endianness", &endianness);
296 gst_caps_get_boolean (caps, "signed", &sign);
299 if (osssink->width == 16) {
301 if (endianness == G_LITTLE_ENDIAN)
302 format = AFMT_S16_LE;
303 else if (endianness == G_BIG_ENDIAN)
304 format = AFMT_S16_BE;
307 if (endianness == G_LITTLE_ENDIAN)
308 format = AFMT_U16_LE;
309 else if (endianness == G_BIG_ENDIAN)
310 format = AFMT_U16_BE;
314 else if (osssink->width == 8) {
323 } else if (law == 1) {
324 format = AFMT_MU_LAW;
325 } else if (law == 2) {
328 g_critical ("unknown law");
329 return GST_PAD_CONNECT_REFUSED;
333 return GST_PAD_CONNECT_REFUSED;
335 osssink->format = format;
336 gst_caps_get_int (caps, "channels", &osssink->channels);
337 gst_caps_get_int (caps, "rate", &osssink->frequency);
339 osssink->bps *= osssink->channels;
340 osssink->bps *= osssink->frequency;
342 if (!gst_osssink_sync_parms (osssink)) {
343 return GST_PAD_CONNECT_REFUSED;
346 return GST_PAD_CONNECT_OK;
350 gst_osssink_sync_parms (GstOssSink *osssink)
352 audio_buf_info ospace;
355 gint target_channels;
356 gint target_frequency;
359 g_return_val_if_fail (osssink != NULL, FALSE);
360 g_return_val_if_fail (GST_IS_OSSSINK (osssink), FALSE);
362 if (osssink->fd == -1)
365 if (osssink->fragment >> 16)
366 frag = osssink->fragment;
368 frag = 0x7FFF0000 | osssink->fragment;
370 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: trying to set sound card to %dHz %d bit %s (%08x fragment)",
371 osssink->frequency, osssink->format,
372 (osssink->channels == 2) ? "stereo" : "mono",frag);
374 ioctl (osssink->fd, SNDCTL_DSP_SETFRAGMENT, &frag);
376 ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
378 target_format = osssink->format;
379 target_channels = osssink->channels;
380 target_frequency = osssink->frequency;
382 ioctl (osssink->fd, SNDCTL_DSP_SETFMT, &osssink->format);
383 ioctl (osssink->fd, SNDCTL_DSP_CHANNELS, &osssink->channels);
384 ioctl (osssink->fd, SNDCTL_DSP_SPEED, &osssink->frequency);
386 ioctl (osssink->fd, SNDCTL_DSP_GETBLKSIZE, &osssink->fragment);
387 ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &ospace);
389 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: set sound card to %dHz %d bit %s (%d bytes buffer, %08x fragment)",
390 osssink->frequency, osssink->format,
391 (osssink->channels == 2) ? "stereo" : "mono", ospace.bytes, osssink->fragment);
393 object = G_OBJECT (osssink);
394 g_object_freeze_notify (object);
395 g_object_notify (object, "channels");
396 g_object_notify (object, "frequency");
397 g_object_notify (object, "fragment");
398 g_object_notify (object, "format");
399 g_object_thaw_notify (object);
401 osssink->fragment_time = (1000000 * osssink->fragment) / osssink->bps;
402 GST_INFO (GST_CAT_PLUGIN_INFO, "fragment time %u %llu\n", osssink->bps, osssink->fragment_time);
404 if (target_format != osssink->format ||
405 target_channels != osssink->channels ||
406 target_frequency != osssink->frequency)
408 g_warning ("could not configure oss with required parameters, enjoy the noise :)");
409 /* we could eventually return FALSE here, or just do some additional tests
410 * to see that the frequencies don't differ too much etc.. */
416 gst_osssink_get_delay (GstOssSink *osssink)
420 if (osssink->fd == -1)
423 if (ioctl (osssink->fd, SNDCTL_DSP_GETODELAY, &delay) < 0) {
425 if (ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
429 delay = (info.fragstotal * info.fragsize) - info.bytes;
436 gst_osssink_get_time (GstClock *clock, gpointer data)
438 GstOssSink *osssink = GST_OSSSINK (data);
445 delay = gst_osssink_get_delay (osssink);
447 /* sometimes delay is bigger than the number of bytes sent to the device, which screws
448 * up this calculation, we assume that everything is still in the device then */
449 if (((guint64)delay) > osssink->handled) {
450 delay = osssink->handled;
452 res = (osssink->handled - delay) * GST_SECOND / osssink->bps;
455 g_print ("from osssink: %lld %d %lld %d\n", res, delay, osssink->handled, osssink->bps);
462 gst_osssink_get_clock (GstElement *element)
466 osssink = GST_OSSSINK (element);
468 return GST_CLOCK (osssink->provided_clock);
472 gst_osssink_set_clock (GstElement *element, GstClock *clock)
476 osssink = GST_OSSSINK (element);
478 osssink->clock = clock;
482 gst_osssink_chain (GstPad *pad, GstBuffer *buf)
485 GstClockTime buftime;
487 /* this has to be an audio buffer */
488 osssink = GST_OSSSINK (gst_pad_get_parent (pad));
490 if (GST_IS_EVENT (buf)) {
491 GstEvent *event = GST_EVENT (buf);
493 switch (GST_EVENT_TYPE (event)) {
495 ioctl (osssink->fd, SNDCTL_DSP_SYNC);
496 gst_oss_clock_set_active (osssink->provided_clock, FALSE);
497 gst_pad_event_default (pad, event);
499 case GST_EVENT_NEW_MEDIA:
500 g_print ("new media\n");
502 case GST_EVENT_DISCONTINUOUS:
506 ioctl (osssink->fd, SNDCTL_DSP_RESET);
507 if (gst_event_discont_get_value (event, GST_FORMAT_TIME, &value)) {
508 if (!gst_clock_handle_discont (osssink->clock, value))
509 gst_oss_clock_set_active (osssink->provided_clock, FALSE);
510 osssink->handled = 0;
512 osssink->resync = TRUE;
516 gst_pad_event_default (pad, event);
519 gst_event_free (event);
524 gst_buffer_unref (buf);
525 gst_element_error (GST_ELEMENT (osssink), "capsnego was never performed, unknown data type");
529 buftime = GST_BUFFER_TIMESTAMP (buf);
531 if (osssink->fd >= 0) {
532 if (!osssink->mute) {
533 guchar *data = GST_BUFFER_DATA (buf);
534 gint size = GST_BUFFER_SIZE (buf);
536 if (osssink->clock) {
539 GstClockTimeDiff jitter;
541 delay = gst_osssink_get_delay (osssink);
542 queued = delay * GST_SECOND / osssink->bps;
544 if (osssink->resync && osssink->sync) {
545 gst_element_clock_wait (GST_ELEMENT (osssink), osssink->clock,
546 buftime - queued, &jitter);
549 gst_clock_handle_discont (osssink->clock, buftime - queued + jitter);
550 write (osssink->fd, data, size);
551 gst_oss_clock_set_active (osssink->provided_clock, TRUE);
552 osssink->resync = FALSE;
553 osssink->handled += size;
557 write (osssink->fd, data, size);
558 osssink->handled += size;
561 /* no clock, try to be as fast as possible */
563 audio_buf_info ospace;
565 ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &ospace);
567 if (ospace.bytes >= size) {
568 write (osssink->fd, data, size);
573 gst_buffer_unref (buf);
577 gst_osssink_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
578 GstFormat *dest_format, gint64 *dest_value)
584 if (src_format == *dest_format) {
585 *dest_value = src_value;
589 osssink = GST_OSSSINK (gst_pad_get_parent (pad));
591 if (osssink->bps == 0 || osssink->channels == 0 || osssink->width == 0)
594 switch (src_format) {
595 case GST_FORMAT_BYTES:
596 switch (*dest_format) {
597 case GST_FORMAT_DEFAULT:
598 *dest_format = GST_FORMAT_TIME;
599 case GST_FORMAT_TIME:
600 *dest_value = src_value * GST_SECOND / osssink->bps;
602 case GST_FORMAT_UNITS:
603 *dest_value = src_value / (osssink->channels * osssink->width);
609 case GST_FORMAT_TIME:
610 switch (*dest_format) {
611 case GST_FORMAT_DEFAULT:
612 *dest_format = GST_FORMAT_BYTES;
613 case GST_FORMAT_BYTES:
614 *dest_value = src_value * osssink->bps / GST_SECOND;
616 case GST_FORMAT_UNITS:
617 *dest_value = src_value * osssink->frequency / GST_SECOND;
623 case GST_FORMAT_UNITS:
624 switch (*dest_format) {
625 case GST_FORMAT_DEFAULT:
626 *dest_format = GST_FORMAT_TIME;
627 case GST_FORMAT_TIME:
628 *dest_value = src_value * GST_SECOND / osssink->frequency;
630 case GST_FORMAT_BYTES:
631 *dest_value = src_value * osssink->channels * osssink->width;
645 gst_osssink_sink_query (GstPad *pad, GstPadQueryType type, GstFormat *format, gint64 *value)
650 osssink = GST_OSSSINK (gst_pad_get_parent (pad));
653 case GST_PAD_QUERY_LATENCY:
654 if (!gst_osssink_convert (pad,
655 GST_FORMAT_BYTES, gst_osssink_get_delay (osssink),
661 case GST_PAD_QUERY_POSITION:
662 if (!gst_osssink_convert (pad,
663 GST_FORMAT_TIME, gst_clock_get_time (osssink->provided_clock),
670 res = gst_pad_query (gst_pad_get_peer (osssink->sinkpad), type, format, value);
678 gst_osssink_query (GstElement *element, GstPadQueryType type, GstFormat *format, gint64 *value)
680 GstOssSink *osssink = GST_OSSSINK (element);
682 return gst_osssink_sink_query (osssink->sinkpad, type, format, value);
686 gst_osssink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
690 /* it's not null if we got it, but it might not be ours */
691 g_return_if_fail (GST_IS_OSSSINK (object));
693 osssink = GST_OSSSINK (object);
697 /* disallow changing the device while it is opened
698 get_property("device") should return the right one */
699 if (!GST_FLAG_IS_SET (osssink, GST_OSSSINK_OPEN))
701 g_free (osssink->device);
702 osssink->device = g_strdup (g_value_get_string (value));
703 g_object_notify (object, "device");
707 osssink->mute = g_value_get_boolean (value);
708 g_object_notify (G_OBJECT (osssink), "mute");
711 osssink->format = g_value_get_int (value);
712 gst_osssink_sync_parms (osssink);
715 osssink->channels = g_value_get_enum (value);
716 gst_osssink_sync_parms (osssink);
719 osssink->frequency = g_value_get_int (value);
720 gst_osssink_sync_parms (osssink);
723 osssink->fragment = g_value_get_int (value);
724 gst_osssink_sync_parms (osssink);
726 case ARG_BUFFER_SIZE:
727 if (osssink->bufsize == g_value_get_int (value)) break;
728 osssink->bufsize = g_value_get_int (value);
729 osssink->sinkpool = gst_buffer_pool_get_default (osssink->bufsize, 6);
730 g_object_notify (object, "buffer_size");
733 osssink->sync = g_value_get_boolean (value);
734 g_object_notify (G_OBJECT (osssink), "sync");
741 gst_osssink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
745 /* it's not null if we got it, but it might not be ours */
746 g_return_if_fail (GST_IS_OSSSINK (object));
748 osssink = GST_OSSSINK (object);
752 g_value_set_string (value, osssink->device);
755 g_value_set_boolean (value, osssink->mute);
758 g_value_set_int (value, osssink->format);
761 g_value_set_enum (value, osssink->channels);
764 g_value_set_int (value, osssink->frequency);
767 g_value_set_int (value, osssink->fragment);
769 case ARG_BUFFER_SIZE:
770 g_value_set_int (value, osssink->bufsize);
773 g_value_set_boolean (value, osssink->sync);
781 gst_osssink_open_audio (GstOssSink *sink)
784 g_return_val_if_fail (sink->fd == -1, FALSE);
786 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: attempting to open sound device");
788 /* first try to open the sound card */
789 sink->fd = open(sink->device, O_WRONLY | O_NONBLOCK);
790 if (errno == EBUSY) {
791 g_warning ("osssink: unable to open the sound device (in use ?)\n");
795 /* re-open the sound device in blocking mode */
797 sink->fd = open(sink->device, O_WRONLY);
799 /* if we have it, set the default parameters and go have fun */
802 ioctl(sink->fd, SNDCTL_DSP_GETCAPS, &caps);
804 GST_INFO(GST_CAT_PLUGIN_INFO, "osssink: Capabilities %08x", caps);
806 if (caps & DSP_CAP_DUPLEX) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Full duplex");
807 if (caps & DSP_CAP_REALTIME) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Realtime");
808 if (caps & DSP_CAP_BATCH) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Batch");
809 if (caps & DSP_CAP_COPROC) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Has coprocessor");
810 if (caps & DSP_CAP_TRIGGER) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Trigger");
811 if (caps & DSP_CAP_MMAP) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Direct access");
814 if (caps & DSP_CAP_MULTI) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Multiple open");
815 #endif /* DSP_CAP_MULTI */
818 if (caps & DSP_CAP_BIND) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Channel binding");
819 #endif /* DSP_CAP_BIND */
821 ioctl(sink->fd, SNDCTL_DSP_GETFMTS, &caps);
823 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Formats %08x", caps);
824 if (caps & AFMT_MU_LAW) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: MU_LAW");
825 if (caps & AFMT_A_LAW) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: A_LAW");
826 if (caps & AFMT_IMA_ADPCM) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: IMA_ADPCM");
827 if (caps & AFMT_U8) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: U8");
828 if (caps & AFMT_S16_LE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: S16_LE");
829 if (caps & AFMT_S16_BE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: S16_BE");
830 if (caps & AFMT_S8) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: S8");
831 if (caps & AFMT_U16_LE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: U16_LE");
832 if (caps & AFMT_U16_BE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: U16_BE");
833 if (caps & AFMT_MPEG) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: MPEG");
835 if (caps & AFMT_AC3) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: AC3");
838 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: opened audio (%s) with fd=%d", sink->device, sink->fd);
839 GST_FLAG_SET (sink, GST_OSSSINK_OPEN);
848 gst_osssink_close_audio (GstOssSink *sink)
850 if (sink->fd < 0) return;
855 GST_FLAG_UNSET (sink, GST_OSSSINK_OPEN);
857 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: closed sound device");
860 static GstElementStateReturn
861 gst_osssink_change_state (GstElement *element)
865 g_return_val_if_fail (GST_IS_OSSSINK (element), FALSE);
867 osssink = GST_OSSSINK (element);
869 switch (GST_STATE_TRANSITION (element)) {
870 case GST_STATE_NULL_TO_READY:
871 if (!GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN)) {
872 if (!gst_osssink_open_audio (osssink)) {
873 return GST_STATE_FAILURE;
877 case GST_STATE_READY_TO_PAUSED:
878 case GST_STATE_PAUSED_TO_PLAYING:
879 osssink->resync = TRUE;
881 case GST_STATE_PLAYING_TO_PAUSED:
883 if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
884 ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
885 gst_oss_clock_set_active (osssink->provided_clock, FALSE);
886 osssink->resync = TRUE;
889 case GST_STATE_PAUSED_TO_READY:
890 if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
891 ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
893 case GST_STATE_READY_TO_NULL:
894 if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
895 gst_osssink_close_audio (osssink);
899 if (GST_ELEMENT_CLASS (parent_class)->change_state)
900 return GST_ELEMENT_CLASS (parent_class)->change_state (element);
902 return GST_STATE_SUCCESS;
906 gst_osssink_factory_init (GstPlugin *plugin)
908 GstElementFactory *factory;
910 factory = gst_element_factory_new ("osssink", GST_TYPE_OSSSINK, &gst_osssink_details);
911 g_return_val_if_fail (factory != NULL, FALSE);
913 gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (osssink_sink_factory));
915 gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));