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 /* elementfactory information */
35 static GstElementDetails gst_osssink_details = {
39 "Output to a sound card via OSS",
41 "Erik Walthinsen <omega@cse.ogi.edu>, "
42 "Wim Taymans <wim.taymans@chello.be>",
46 static void gst_osssink_class_init (GstOssSinkClass *klass);
47 static void gst_osssink_init (GstOssSink *osssink);
48 static void gst_osssink_finalize (GObject *object);
50 static gboolean gst_osssink_open_audio (GstOssSink *sink);
51 static void gst_osssink_close_audio (GstOssSink *sink);
52 static gboolean gst_osssink_sync_parms (GstOssSink *osssink);
53 static GstElementStateReturn gst_osssink_change_state (GstElement *element);
54 static void gst_osssink_set_clock (GstElement *element, GstClock *clock);
55 static GstClock* gst_osssink_get_clock (GstElement *element);
56 static GstClockTime gst_osssink_get_time (GstClock *clock, gpointer data);
58 static const GstFormat* gst_osssink_get_formats (GstPad *pad);
59 static gboolean gst_osssink_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
60 GstFormat *dest_format, gint64 *dest_value);
61 static const GstPadQueryType* gst_osssink_get_query_types (GstPad *pad);
62 static gboolean gst_osssink_query (GstElement *element, GstPadQueryType type,
63 GstFormat *format, gint64 *value);
64 static gboolean gst_osssink_sink_query (GstPad *pad, GstPadQueryType type,
65 GstFormat *format, gint64 *value);
67 static GstPadConnectReturn gst_osssink_sinkconnect (GstPad *pad, GstCaps *caps);
69 static void gst_osssink_set_property (GObject *object, guint prop_id, const GValue *value,
71 static void gst_osssink_get_property (GObject *object, guint prop_id, GValue *value,
74 static void gst_osssink_chain (GstPad *pad,GstBuffer *buf);
76 /* OssSink signals and args */
95 GST_PAD_TEMPLATE_FACTORY (osssink_sink_factory,
102 "format", GST_PROPS_STRING ("int"), /* hack */
103 "law", GST_PROPS_INT (0),
104 "endianness", GST_PROPS_INT (G_BYTE_ORDER),
105 "signed", GST_PROPS_LIST (
106 GST_PROPS_BOOLEAN (FALSE),
107 GST_PROPS_BOOLEAN (TRUE)
109 "width", GST_PROPS_LIST (
113 "depth", GST_PROPS_LIST (
117 "rate", GST_PROPS_INT_RANGE (1000, 48000),
118 "channels", GST_PROPS_INT_RANGE (1, 2)
122 #define GST_TYPE_OSSSINK_CHANNELS (gst_osssink_channels_get_type())
124 gst_osssink_channels_get_type(void) {
125 static GType osssink_channels_type = 0;
126 static GEnumValue osssink_channels[] = {
132 if (!osssink_channels_type) {
133 osssink_channels_type = g_enum_register_static("GstAudiosinkChannels", osssink_channels);
135 return osssink_channels_type;
138 #define GST_TYPE_OSSSINK_FORMAT (gst_osssink_format_get_type())
140 gst_osssink_format_get_type(void) {
141 static GType osssink_format_type = 0;
142 static GEnumValue osssink_format[] = {
143 {AFMT_MU_LAW, G_STRINGIFY(AFMT_MU_LAW), "mulaw"},
144 {AFMT_A_LAW, G_STRINGIFY(AFMT_A_LAW), "alaw"},
145 {AFMT_IMA_ADPCM, G_STRINGIFY(AFMT_IMA_ADPCM), "IMA ADPCM"},
146 {AFMT_U8, G_STRINGIFY(AFMT_U8), "Unsigned 8 bits"},
147 {AFMT_S16_LE, G_STRINGIFY(AFMT_S16_LE), "Signed 16 bits little endian"},
148 {AFMT_S16_BE, G_STRINGIFY(AFMT_S16_BE), "Signed 16 bits big endian"},
149 {AFMT_S8, G_STRINGIFY(AFMT_S8), "Signed 8 bits"},
150 {AFMT_U16_LE, G_STRINGIFY(AFMT_U16_LE), "Unsigned 16 bits little endian"},
151 {AFMT_U16_BE, G_STRINGIFY(AFMT_U16_BE), "Unsigned 16 bits big endian"},
152 {AFMT_MPEG, G_STRINGIFY(AFMT_MPEG), "MPEG"},
153 {AFMT_AC3, G_STRINGIFY(AFMT_AC3), "AC3"},
156 if (!osssink_format_type) {
157 osssink_format_type = g_enum_register_static("GstAudiosinkFormat", osssink_format);
159 return osssink_format_type;
162 static GstElementClass *parent_class = NULL;
163 static guint gst_osssink_signals[LAST_SIGNAL] = { 0 };
166 gst_osssink_get_type (void)
168 static GType osssink_type = 0;
171 static const GTypeInfo osssink_info = {
172 sizeof(GstOssSinkClass),
175 (GClassInitFunc)gst_osssink_class_init,
180 (GInstanceInitFunc)gst_osssink_init,
182 osssink_type = g_type_register_static (GST_TYPE_ELEMENT, "GstOssSink", &osssink_info, 0);
188 static GstBufferPool*
189 gst_osssink_get_bufferpool (GstPad *pad)
193 oss = GST_OSSSINK (gst_pad_get_parent(pad));
195 /* 6 buffers per chunk by default */
197 oss->sinkpool = gst_buffer_pool_get_default (oss->bufsize, 6);
199 return oss->sinkpool;
203 gst_osssink_finalize (GObject *object)
205 GstOssSink *osssink = (GstOssSink *) object;
207 g_free (osssink->device);
209 G_OBJECT_CLASS (parent_class)->finalize (object);
213 gst_osssink_class_init (GstOssSinkClass *klass)
215 GObjectClass *gobject_class;
216 GstElementClass *gstelement_class;
218 gobject_class = (GObjectClass*)klass;
219 gstelement_class = (GstElementClass*)klass;
221 parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
223 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DEVICE,
224 g_param_spec_string ("device", "Device", "The device to use for output",
225 "/dev/dsp", G_PARAM_READWRITE)); /* CHECKME! */
226 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_MUTE,
227 g_param_spec_boolean ("mute", "Mute", "Mute the audio",
228 TRUE, G_PARAM_READWRITE));
229 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_SYNC,
230 g_param_spec_boolean ("sync", "Sync", "If syncing on timestamps should be enabled",
231 TRUE, G_PARAM_READWRITE));
232 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FORMAT,
233 g_param_spec_enum ("format", "Format", "The format the device is configured for",
234 GST_TYPE_OSSSINK_FORMAT, AFMT_S16_LE, G_PARAM_READWRITE));
235 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_CHANNELS,
236 g_param_spec_enum ("channels", "Channels", "The number of channels used for playback",
237 GST_TYPE_OSSSINK_CHANNELS, 2, G_PARAM_READWRITE));
238 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FREQUENCY,
239 g_param_spec_int ("frequency", "Frequency", "The frequency of the device",
240 0, 48000, 44100, G_PARAM_READWRITE));
241 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FRAGMENT,
242 g_param_spec_int ("fragment", "Fragment",
243 "The fragment as 0xMMMMSSSS (MMMM = total fragments, 2^SSSS = fragment size)",
244 0, G_MAXINT, 6, G_PARAM_READWRITE));
245 g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BUFFER_SIZE,
246 g_param_spec_int ("buffer_size", "Buffer size", "The buffer size",
247 0, G_MAXINT, 4096, G_PARAM_READWRITE));
249 gst_osssink_signals[SIGNAL_HANDOFF] =
250 g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
251 G_STRUCT_OFFSET (GstOssSinkClass, handoff), NULL, NULL,
252 g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
254 gobject_class->set_property = gst_osssink_set_property;
255 gobject_class->get_property = gst_osssink_get_property;
256 gobject_class->finalize = gst_osssink_finalize;
258 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_osssink_change_state);
259 gstelement_class->query = GST_DEBUG_FUNCPTR (gst_osssink_query);
263 gst_osssink_init (GstOssSink *osssink)
265 osssink->sinkpad = gst_pad_new_from_template (
266 GST_PAD_TEMPLATE_GET (osssink_sink_factory), "sink");
267 gst_element_add_pad (GST_ELEMENT (osssink), osssink->sinkpad);
268 gst_pad_set_connect_function (osssink->sinkpad, gst_osssink_sinkconnect);
269 gst_pad_set_bufferpool_function (osssink->sinkpad, gst_osssink_get_bufferpool);
270 gst_pad_set_convert_function (osssink->sinkpad, gst_osssink_convert);
271 gst_pad_set_query_function (osssink->sinkpad, gst_osssink_sink_query);
272 gst_pad_set_query_type_function (osssink->sinkpad, gst_osssink_get_query_types);
273 gst_pad_set_formats_function (osssink->sinkpad, gst_osssink_get_formats);
275 gst_pad_set_chain_function (osssink->sinkpad, gst_osssink_chain);
277 osssink->device = g_strdup ("/dev/dsp");
279 osssink->channels = 1;
280 osssink->frequency = 11025;
281 osssink->fragment = 6;
282 /* AFMT_*_BE not available on all OSS includes (e.g. FBSD) */
283 #ifdef WORDS_BIGENDIAN
284 osssink->format = AFMT_S16_BE;
286 osssink->format = AFMT_S16_LE;
287 #endif /* WORDS_BIGENDIAN */
288 osssink->bufsize = 4096;
290 osssink->resync = FALSE;
291 osssink->sync = TRUE;
292 osssink->sinkpool = NULL;
293 osssink->provided_clock = GST_CLOCK (gst_oss_clock_new ("ossclock", gst_osssink_get_time, osssink));
294 osssink->handled = 0;
296 GST_ELEMENT (osssink)->setclockfunc = gst_osssink_set_clock;
297 GST_ELEMENT (osssink)->getclockfunc = gst_osssink_get_clock;
299 GST_FLAG_SET (osssink, GST_ELEMENT_THREAD_SUGGESTED);
300 GST_FLAG_SET (osssink, GST_ELEMENT_EVENT_AWARE);
304 static GstPadConnectReturn
305 gst_osssink_sinkconnect (GstPad *pad, GstCaps *caps)
307 gint law, endianness, depth;
310 GstOssSink *osssink = GST_OSSSINK (gst_pad_get_parent (pad));
312 if (!GST_CAPS_IS_FIXED (caps))
313 return GST_PAD_CONNECT_DELAYED;
315 gst_caps_get_int (caps, "width", &osssink->width);
316 gst_caps_get_int (caps, "depth", &depth);
318 if (osssink->width != depth)
319 return GST_PAD_CONNECT_REFUSED;
321 /* laws 1 and 2 are 1 bps anyway */
324 gst_caps_get_int (caps, "law", &law);
325 gst_caps_get_int (caps, "endianness", &endianness);
326 gst_caps_get_boolean (caps, "signed", &sign);
329 if (osssink->width == 16) {
331 if (endianness == G_LITTLE_ENDIAN)
333 format = AFMT_S16_LE;
334 GST_DEBUG (GST_CAT_PLUGIN_INFO,
335 "gst_osssink_sinkconnect: 16 bit signed LE, no law (%d)",
338 else if (endianness == G_BIG_ENDIAN)
340 format = AFMT_S16_BE;
341 GST_DEBUG (GST_CAT_PLUGIN_INFO,
342 "gst_osssink_sinkconnect: 16 bit signed BE, no law (%d)",
347 if (endianness == G_LITTLE_ENDIAN)
349 format = AFMT_U16_LE;
350 GST_DEBUG (GST_CAT_PLUGIN_INFO,
351 "gst_osssink_sinkconnect: 16 bit unsigned LE, no law (%d)",
354 else if (endianness == G_BIG_ENDIAN)
356 format = AFMT_U16_BE;
357 GST_DEBUG (GST_CAT_PLUGIN_INFO,
358 "gst_osssink_sinkconnect: 16 bit unsigned BE, no law (%d)",
364 else if (osssink->width == 8) {
367 GST_DEBUG (GST_CAT_PLUGIN_INFO,
368 "gst_osssink_sinkconnect: 8 bit signed, no law (%d)",
373 GST_DEBUG (GST_CAT_PLUGIN_INFO,
374 "gst_osssink_sinkconnect: 8 bit unsigned, no law (%d)",
379 } else if (law == 1) {
380 format = AFMT_MU_LAW;
381 GST_DEBUG (GST_CAT_PLUGIN_INFO,
382 "gst_osssink_sinkconnect: mu law (%d)",
384 } else if (law == 2) {
386 GST_DEBUG (GST_CAT_PLUGIN_INFO,
387 "gst_osssink_sinkconnect: a law (%d)",
390 g_critical ("unknown law");
391 return GST_PAD_CONNECT_REFUSED;
395 return GST_PAD_CONNECT_REFUSED;
397 osssink->format = format;
398 gst_caps_get_int (caps, "channels", &osssink->channels);
399 gst_caps_get_int (caps, "rate", &osssink->frequency);
401 osssink->bps *= osssink->channels;
402 osssink->bps *= osssink->frequency;
404 if (!gst_osssink_sync_parms (osssink)) {
405 return GST_PAD_CONNECT_REFUSED;
408 return GST_PAD_CONNECT_OK;
412 gst_osssink_sync_parms (GstOssSink *osssink)
414 audio_buf_info ospace;
417 gint target_channels;
418 gint target_frequency;
420 gint fragscale, frag_ln;
422 g_return_val_if_fail (osssink != NULL, FALSE);
423 g_return_val_if_fail (GST_IS_OSSSINK (osssink), FALSE);
425 if (osssink->fd == -1)
428 if (osssink->fragment >> 16)
429 frag = osssink->fragment;
431 frag = 0x7FFF0000 | osssink->fragment;
433 GST_INFO (GST_CAT_PLUGIN_INFO,
434 "osssink: setting sound card to %dHz %d format %s (%08x fragment)",
435 osssink->frequency, osssink->format,
436 (osssink->channels == 2) ? "stereo" : "mono", frag);
438 ioctl (osssink->fd, SNDCTL_DSP_SETFRAGMENT, &frag);
440 ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
442 target_format = osssink->format;
443 target_channels = osssink->channels;
444 target_frequency = osssink->frequency;
446 ioctl (osssink->fd, SNDCTL_DSP_SETFMT, &osssink->format);
447 ioctl (osssink->fd, SNDCTL_DSP_CHANNELS, &osssink->channels);
448 ioctl (osssink->fd, SNDCTL_DSP_SPEED, &osssink->frequency);
450 ioctl (osssink->fd, SNDCTL_DSP_GETBLKSIZE, &osssink->fragment_size);
451 ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &ospace);
453 /* calculate new fragment using a poor man's logarithm function */
456 while (fragscale < ospace.fragsize) {
460 osssink->fragment = ospace.fragstotal << 16 | frag_ln;
462 GST_INFO (GST_CAT_PLUGIN_INFO,
463 "osssink: set sound card to %dHz %d format %s "
464 "(%d bytes buffer, %08x fragment)",
465 osssink->frequency, osssink->format,
466 (osssink->channels == 2) ? "stereo" : "mono",
467 ospace.bytes, osssink->fragment);
469 object = G_OBJECT (osssink);
470 g_object_freeze_notify (object);
471 g_object_notify (object, "channels");
472 g_object_notify (object, "frequency");
473 g_object_notify (object, "fragment");
474 g_object_notify (object, "format");
475 g_object_thaw_notify (object);
477 osssink->fragment_time = (GST_SECOND * osssink->fragment_size) / osssink->bps;
478 GST_INFO (GST_CAT_PLUGIN_INFO, "fragment time %u %llu\n",
479 osssink->bps, osssink->fragment_time);
481 if (target_format != osssink->format ||
482 target_channels != osssink->channels ||
483 target_frequency != osssink->frequency)
485 g_warning ("couldn't set requested OSS parameters, enjoy the noise :)");
486 /* we could eventually return FALSE here, or just do some additional tests
487 * to see that the frequencies don't differ too much etc.. */
493 gst_osssink_get_delay (GstOssSink *osssink)
497 if (osssink->fd == -1)
500 if (ioctl (osssink->fd, SNDCTL_DSP_GETODELAY, &delay) < 0) {
502 if (ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
506 delay = (info.fragstotal * info.fragsize) - info.bytes;
513 gst_osssink_get_time (GstClock *clock, gpointer data)
515 GstOssSink *osssink = GST_OSSSINK (data);
522 delay = gst_osssink_get_delay (osssink);
524 /* sometimes delay is bigger than the number of bytes sent to the device,
525 * which screws up this calculation, we assume that everything is still
526 * in the device then */
527 if (((guint64)delay) > osssink->handled) {
528 delay = osssink->handled;
530 res = (osssink->handled - delay) * GST_SECOND / osssink->bps;
536 gst_osssink_get_clock (GstElement *element)
540 osssink = GST_OSSSINK (element);
542 return GST_CLOCK (osssink->provided_clock);
546 gst_osssink_set_clock (GstElement *element, GstClock *clock)
550 osssink = GST_OSSSINK (element);
552 osssink->clock = clock;
556 gst_osssink_chain (GstPad *pad, GstBuffer *buf)
559 GstClockTime buftime;
561 /* this has to be an audio buffer */
562 osssink = GST_OSSSINK (gst_pad_get_parent (pad));
564 if (GST_IS_EVENT (buf)) {
565 GstEvent *event = GST_EVENT (buf);
567 switch (GST_EVENT_TYPE (event)) {
569 ioctl (osssink->fd, SNDCTL_DSP_SYNC);
570 gst_oss_clock_set_active (osssink->provided_clock, FALSE);
571 gst_pad_event_default (pad, event);
573 case GST_EVENT_NEW_MEDIA:
574 g_print ("new media\n");
576 case GST_EVENT_DISCONTINUOUS:
580 ioctl (osssink->fd, SNDCTL_DSP_RESET);
581 if (gst_event_discont_get_value (event, GST_FORMAT_TIME, &value)) {
582 if (!gst_clock_handle_discont (osssink->clock, value))
583 gst_oss_clock_set_active (osssink->provided_clock, FALSE);
584 osssink->handled = 0;
586 osssink->resync = TRUE;
590 gst_pad_event_default (pad, event);
593 gst_event_unref (event);
598 gst_buffer_unref (buf);
599 gst_element_error (GST_ELEMENT (osssink), "capsnego was never performed, unknown data type");
603 buftime = GST_BUFFER_TIMESTAMP (buf);
605 if (osssink->fd >= 0) {
606 if (!osssink->mute) {
607 guchar *data = GST_BUFFER_DATA (buf);
608 gint size = GST_BUFFER_SIZE (buf);
610 if (osssink->clock) {
613 GstClockTimeDiff jitter;
615 delay = gst_osssink_get_delay (osssink);
616 queued = delay * GST_SECOND / osssink->bps;
618 if (osssink->resync && osssink->sync) {
619 gst_element_clock_wait (GST_ELEMENT (osssink), osssink->clock,
620 buftime - queued, &jitter);
623 gst_clock_handle_discont (osssink->clock, buftime - queued + jitter);
624 write (osssink->fd, data, size);
625 gst_oss_clock_set_active (osssink->provided_clock, TRUE);
626 osssink->resync = FALSE;
627 osssink->handled += size;
631 write (osssink->fd, data, size);
632 osssink->handled += size;
635 /* no clock, try to be as fast as possible */
637 audio_buf_info ospace;
639 ioctl (osssink->fd, SNDCTL_DSP_GETOSPACE, &ospace);
641 if (ospace.bytes >= size) {
642 write (osssink->fd, data, size);
647 gst_buffer_unref (buf);
650 static const GstFormat*
651 gst_osssink_get_formats (GstPad *pad)
653 static const GstFormat formats[] = {
663 gst_osssink_convert (GstPad *pad, GstFormat src_format, gint64 src_value,
664 GstFormat *dest_format, gint64 *dest_value)
670 if (src_format == *dest_format) {
671 *dest_value = src_value;
675 osssink = GST_OSSSINK (gst_pad_get_parent (pad));
677 if (osssink->bps == 0 || osssink->channels == 0 || osssink->width == 0)
680 switch (src_format) {
681 case GST_FORMAT_BYTES:
682 switch (*dest_format) {
683 case GST_FORMAT_DEFAULT:
684 *dest_format = GST_FORMAT_TIME;
685 case GST_FORMAT_TIME:
686 *dest_value = src_value * GST_SECOND / osssink->bps;
688 case GST_FORMAT_UNITS:
689 *dest_value = src_value / (osssink->channels * osssink->width);
695 case GST_FORMAT_TIME:
696 switch (*dest_format) {
697 case GST_FORMAT_DEFAULT:
698 *dest_format = GST_FORMAT_BYTES;
699 case GST_FORMAT_BYTES:
700 *dest_value = src_value * osssink->bps / GST_SECOND;
702 case GST_FORMAT_UNITS:
703 *dest_value = src_value * osssink->frequency / GST_SECOND;
709 case GST_FORMAT_UNITS:
710 switch (*dest_format) {
711 case GST_FORMAT_DEFAULT:
712 *dest_format = GST_FORMAT_TIME;
713 case GST_FORMAT_TIME:
714 *dest_value = src_value * GST_SECOND / osssink->frequency;
716 case GST_FORMAT_BYTES:
717 *dest_value = src_value * osssink->channels * osssink->width;
730 static const GstPadQueryType*
731 gst_osssink_get_query_types (GstPad *pad)
733 static const GstPadQueryType query_types[] = {
734 GST_PAD_QUERY_LATENCY,
735 GST_PAD_QUERY_POSITION,
742 gst_osssink_sink_query (GstPad *pad, GstPadQueryType type, GstFormat *format, gint64 *value)
747 osssink = GST_OSSSINK (gst_pad_get_parent (pad));
750 case GST_PAD_QUERY_LATENCY:
751 if (!gst_osssink_convert (pad,
752 GST_FORMAT_BYTES, gst_osssink_get_delay (osssink),
758 case GST_PAD_QUERY_POSITION:
759 if (!gst_osssink_convert (pad,
760 GST_FORMAT_TIME, gst_clock_get_time (osssink->provided_clock),
767 res = gst_pad_query (gst_pad_get_peer (osssink->sinkpad), type, format, value);
775 gst_osssink_query (GstElement *element, GstPadQueryType type, GstFormat *format, gint64 *value)
777 GstOssSink *osssink = GST_OSSSINK (element);
779 return gst_osssink_sink_query (osssink->sinkpad, type, format, value);
783 gst_osssink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
787 /* it's not null if we got it, but it might not be ours */
788 g_return_if_fail (GST_IS_OSSSINK (object));
790 osssink = GST_OSSSINK (object);
794 /* disallow changing the device while it is opened
795 get_property("device") should return the right one */
796 if (!GST_FLAG_IS_SET (osssink, GST_OSSSINK_OPEN))
798 g_free (osssink->device);
799 osssink->device = g_strdup (g_value_get_string (value));
800 g_object_notify (object, "device");
804 osssink->mute = g_value_get_boolean (value);
805 g_object_notify (G_OBJECT (osssink), "mute");
808 osssink->format = g_value_get_enum (value);
809 gst_osssink_sync_parms (osssink);
812 osssink->channels = g_value_get_enum (value);
813 gst_osssink_sync_parms (osssink);
816 osssink->frequency = g_value_get_int (value);
817 gst_osssink_sync_parms (osssink);
820 osssink->fragment = g_value_get_int (value);
821 gst_osssink_sync_parms (osssink);
823 case ARG_BUFFER_SIZE:
824 if (osssink->bufsize == g_value_get_int (value)) break;
825 osssink->bufsize = g_value_get_int (value);
826 osssink->sinkpool = gst_buffer_pool_get_default (osssink->bufsize, 6);
827 g_object_notify (object, "buffer_size");
830 osssink->sync = g_value_get_boolean (value);
831 g_object_notify (G_OBJECT (osssink), "sync");
834 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
840 gst_osssink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
844 /* it's not null if we got it, but it might not be ours */
845 g_return_if_fail (GST_IS_OSSSINK (object));
847 osssink = GST_OSSSINK (object);
851 g_value_set_string (value, osssink->device);
854 g_value_set_boolean (value, osssink->mute);
857 g_value_set_enum (value, osssink->format);
860 g_value_set_enum (value, osssink->channels);
863 g_value_set_int (value, osssink->frequency);
866 g_value_set_int (value, osssink->fragment);
868 case ARG_BUFFER_SIZE:
869 g_value_set_int (value, osssink->bufsize);
872 g_value_set_boolean (value, osssink->sync);
875 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
881 gst_osssink_open_audio (GstOssSink *sink)
884 g_return_val_if_fail (sink->fd == -1, FALSE);
886 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: attempting to open sound device");
888 /* first try to open the sound card */
889 sink->fd = open (sink->device, O_WRONLY | O_NONBLOCK);
890 if (errno == EBUSY) {
891 g_warning ("osssink: unable to open the sound device (in use ?)\n");
895 /* re-open the sound device in blocking mode */
897 sink->fd = open (sink->device, O_WRONLY);
900 g_warning ("osssink: unable to open the sound device (errno=%d)\n", errno);
904 /* we have it, set the default parameters and go have fun */
906 ioctl (sink->fd, SNDCTL_DSP_GETCAPS, &caps);
908 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Capabilities %08x", caps);
910 if (caps & DSP_CAP_DUPLEX) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Full duplex");
911 if (caps & DSP_CAP_REALTIME) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Realtime");
912 if (caps & DSP_CAP_BATCH) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Batch");
913 if (caps & DSP_CAP_COPROC) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Has coprocessor");
914 if (caps & DSP_CAP_TRIGGER) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Trigger");
915 if (caps & DSP_CAP_MMAP) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Direct access");
918 if (caps & DSP_CAP_MULTI) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Multiple open");
919 #endif /* DSP_CAP_MULTI */
922 if (caps & DSP_CAP_BIND) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Channel binding");
923 #endif /* DSP_CAP_BIND */
925 ioctl(sink->fd, SNDCTL_DSP_GETFMTS, &caps);
927 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: Formats %08x", caps);
928 if (caps & AFMT_MU_LAW) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: MU_LAW");
929 if (caps & AFMT_A_LAW) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: A_LAW");
930 if (caps & AFMT_IMA_ADPCM) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: IMA_ADPCM");
931 if (caps & AFMT_U8) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: U8");
932 if (caps & AFMT_S16_LE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: S16_LE");
933 if (caps & AFMT_S16_BE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: S16_BE");
934 if (caps & AFMT_S8) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: S8");
935 if (caps & AFMT_U16_LE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: U16_LE");
936 if (caps & AFMT_U16_BE) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: U16_BE");
937 if (caps & AFMT_MPEG) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: MPEG");
939 if (caps & AFMT_AC3) GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: AC3");
942 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: opened audio (%s) with fd=%d", sink->device, sink->fd);
943 GST_FLAG_SET (sink, GST_OSSSINK_OPEN);
949 gst_osssink_close_audio (GstOssSink *sink)
951 if (sink->fd < 0) return;
956 GST_FLAG_UNSET (sink, GST_OSSSINK_OPEN);
958 GST_INFO (GST_CAT_PLUGIN_INFO, "osssink: closed sound device");
961 static GstElementStateReturn
962 gst_osssink_change_state (GstElement *element)
966 g_return_val_if_fail (GST_IS_OSSSINK (element), FALSE);
968 osssink = GST_OSSSINK (element);
970 switch (GST_STATE_TRANSITION (element)) {
971 case GST_STATE_NULL_TO_READY:
972 if (!GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN)) {
973 if (!gst_osssink_open_audio (osssink)) {
974 return GST_STATE_FAILURE;
978 case GST_STATE_READY_TO_PAUSED:
980 case GST_STATE_PAUSED_TO_PLAYING:
981 osssink->resync = TRUE;
983 case GST_STATE_PLAYING_TO_PAUSED:
985 if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
986 ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
987 gst_oss_clock_set_active (osssink->provided_clock, FALSE);
988 osssink->resync = TRUE;
991 case GST_STATE_PAUSED_TO_READY:
992 if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
993 ioctl (osssink->fd, SNDCTL_DSP_RESET, 0);
995 case GST_STATE_READY_TO_NULL:
996 if (GST_FLAG_IS_SET (element, GST_OSSSINK_OPEN))
997 gst_osssink_close_audio (osssink);
1001 if (GST_ELEMENT_CLASS (parent_class)->change_state)
1002 return GST_ELEMENT_CLASS (parent_class)->change_state (element);
1004 return GST_STATE_SUCCESS;
1008 gst_osssink_factory_init (GstPlugin *plugin)
1010 GstElementFactory *factory;
1012 factory = gst_element_factory_new ("osssink", GST_TYPE_OSSSINK, &gst_osssink_details);
1013 g_return_val_if_fail (factory != NULL, FALSE);
1015 gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (osssink_sink_factory));
1017 gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));