2 * Copyright (C) <2011> Sebastian Dröge <sebastian.droege@collabora.co.uk>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
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 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
24 #include "gstplaysinkaudioconvert.h"
26 #include <gst/pbutils/pbutils.h>
27 #include <gst/gst-i18n-plugin.h>
29 GST_DEBUG_CATEGORY_STATIC (gst_play_sink_audio_convert_debug);
30 #define GST_CAT_DEFAULT gst_play_sink_audio_convert_debug
32 #define parent_class gst_play_sink_audio_convert_parent_class
34 G_DEFINE_TYPE (GstPlaySinkAudioConvert, gst_play_sink_audio_convert,
37 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
42 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
48 is_raw_caps (GstCaps * caps)
54 n = gst_caps_get_size (caps);
55 for (i = 0; i < n; i++) {
56 s = gst_caps_get_structure (caps, i);
57 name = gst_structure_get_name (s);
58 if (!g_str_has_prefix (name, "audio/x-raw"))
66 post_missing_element_message (GstPlaySinkAudioConvert * self,
71 msg = gst_missing_element_message_new (GST_ELEMENT_CAST (self), name);
72 gst_element_post_message (GST_ELEMENT_CAST (self), msg);
76 distribute_running_time (GstElement * element, const GstSegment * segment)
81 pad = gst_element_get_static_pad (element, "sink");
84 event = gst_event_new_new_segment_full (FALSE, segment->rate,
85 segment->applied_rate, segment->format, 0, segment->accum, 0);
86 gst_pad_send_event (pad, event);
89 event = gst_event_new_new_segment_full (FALSE, segment->rate,
90 segment->applied_rate, segment->format,
91 segment->start, segment->stop, segment->time);
92 gst_pad_send_event (pad, event);
94 gst_object_unref (pad);
98 pad_blocked_cb (GstPad * pad, GstProbeType type, gpointer type_data,
101 GstPlaySinkAudioConvert *self = user_data;
106 GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
107 GST_DEBUG_OBJECT (self, "Pad blocked");
109 /* There must be a peer at this point */
110 peer = gst_pad_get_peer (self->sinkpad);
111 caps = gst_pad_get_current_caps (peer);
113 caps = gst_pad_get_caps (peer, NULL);
114 gst_object_unref (peer);
116 raw = is_raw_caps (caps);
117 GST_DEBUG_OBJECT (self, "Caps %" GST_PTR_FORMAT " are raw: %d", caps, raw);
118 gst_caps_unref (caps);
120 if (raw == self->raw)
125 GstBin *bin = GST_BIN_CAST (self);
126 GstElement *head = NULL, *prev = NULL;
129 GST_DEBUG_OBJECT (self, "Creating raw conversion pipeline");
131 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
132 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
134 if (self->use_converters) {
135 self->conv = gst_element_factory_make ("audioconvert", "conv");
136 if (self->conv == NULL) {
137 post_missing_element_message (self, "audioconvert");
138 GST_ELEMENT_WARNING (self, CORE, MISSING_PLUGIN,
139 (_("Missing element '%s' - check your GStreamer installation."),
140 "audioconvert"), ("audio rendering might fail"));
142 gst_bin_add (bin, self->conv);
143 gst_element_sync_state_with_parent (self->conv);
144 prev = head = self->conv;
147 self->resample = gst_element_factory_make ("audioresample", "resample");
148 if (self->resample == NULL) {
149 post_missing_element_message (self, "audioresample");
150 GST_ELEMENT_WARNING (self, CORE, MISSING_PLUGIN,
151 (_("Missing element '%s' - check your GStreamer installation."),
152 "audioresample"), ("possibly a liboil version mismatch?"));
154 gst_bin_add (bin, self->resample);
155 gst_element_sync_state_with_parent (self->resample);
157 if (!gst_element_link_pads_full (prev, "src", self->resample, "sink",
158 GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
161 head = self->resample;
163 prev = self->resample;
167 if (self->use_volume && self->volume) {
168 gst_bin_add (bin, gst_object_ref (self->volume));
169 gst_element_sync_state_with_parent (self->volume);
171 if (!gst_element_link_pads_full (prev, "src", self->volume, "sink",
172 GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
181 pad = gst_element_get_static_pad (head, "sink");
182 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), pad);
183 gst_object_unref (pad);
187 pad = gst_element_get_static_pad (prev, "src");
188 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), pad);
189 gst_object_unref (pad);
192 if (!head && !prev) {
193 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
194 self->sink_proxypad);
197 GST_DEBUG_OBJECT (self, "Raw conversion pipeline created");
199 GstBin *bin = GST_BIN_CAST (self);
201 GST_DEBUG_OBJECT (self, "Removing raw conversion pipeline");
203 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
204 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
207 gst_element_set_state (self->conv, GST_STATE_NULL);
208 gst_bin_remove (bin, self->conv);
211 if (self->resample) {
212 gst_element_set_state (self->resample, GST_STATE_NULL);
213 gst_bin_remove (bin, self->resample);
214 self->resample = NULL;
217 gst_element_set_state (self->volume, GST_STATE_NULL);
218 if (GST_OBJECT_PARENT (self->volume) == GST_OBJECT_CAST (self)) {
219 gst_bin_remove (GST_BIN_CAST (self), self->volume);
223 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
224 self->sink_proxypad);
226 GST_DEBUG_OBJECT (self, "Raw conversion pipeline removed");
230 self->sink_proxypad_block_id = 0;
231 GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
233 return GST_PROBE_REMOVE;
237 GST_ELEMENT_ERROR (self, CORE, PAD,
238 (NULL), ("Failed to configure the audio converter."));
239 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
240 self->sink_proxypad);
241 self->sink_proxypad_block_id = 0;
242 GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
244 return GST_PROBE_REMOVE;
249 block_proxypad (GstPlaySinkAudioConvert * self)
251 if (self->sink_proxypad_block_id == 0) {
252 self->sink_proxypad_block_id =
253 gst_pad_add_probe (self->sink_proxypad, GST_PROBE_TYPE_BLOCK,
254 pad_blocked_cb, gst_object_ref (self),
255 (GDestroyNotify) gst_object_unref);
260 unblock_proxypad (GstPlaySinkAudioConvert * self)
262 if (self->sink_proxypad_block_id != 0) {
263 gst_pad_remove_probe (self->sink_proxypad, self->sink_proxypad_block_id);
264 self->sink_proxypad_block_id = 0;
269 gst_play_sink_audio_convert_sink_setcaps (GstPlaySinkAudioConvert * self,
274 gboolean reconfigure = FALSE;
276 GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
277 s = gst_caps_get_structure (caps, 0);
278 name = gst_structure_get_name (s);
280 if (g_str_has_prefix (name, "audio/x-raw")) {
281 if (!self->raw && !gst_pad_is_blocked (self->sink_proxypad)) {
282 GST_DEBUG_OBJECT (self, "Changing caps from non-raw to raw");
284 block_proxypad (self);
287 if (self->raw && !gst_pad_is_blocked (self->sink_proxypad)) {
288 GST_DEBUG_OBJECT (self, "Changing caps from raw to non-raw");
290 block_proxypad (self);
294 /* Otherwise the setcaps below fails */
296 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
297 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
300 GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
302 GST_DEBUG_OBJECT (self, "Setting sink caps %" GST_PTR_FORMAT, caps);
308 gst_play_sink_audio_convert_sink_event (GstPad * pad, GstEvent * event)
310 GstPlaySinkAudioConvert *self =
311 GST_PLAY_SINK_AUDIO_CONVERT (gst_pad_get_parent (pad));
314 switch (GST_EVENT_TYPE (event)) {
319 gst_event_parse_caps (event, &caps);
320 ret = gst_play_sink_audio_convert_sink_setcaps (self, caps);
327 ret = gst_proxy_pad_event_default (pad, gst_event_ref (event));
329 switch (GST_EVENT_TYPE (event)) {
330 case GST_EVENT_SEGMENT:
331 GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
332 GST_DEBUG_OBJECT (self, "Segment before %" GST_SEGMENT_FORMAT,
334 gst_event_copy_segment (event, &self->segment);
335 GST_DEBUG_OBJECT (self, "Segment after %" GST_SEGMENT_FORMAT,
337 GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
339 case GST_EVENT_FLUSH_STOP:
340 GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
341 GST_DEBUG_OBJECT (self, "Resetting segment");
342 gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
343 GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
349 gst_event_unref (event);
350 gst_object_unref (self);
356 gst_play_sink_audio_convert_getcaps (GstPad * pad, GstCaps * filter)
358 GstPlaySinkAudioConvert *self =
359 GST_PLAY_SINK_AUDIO_CONVERT (gst_pad_get_parent (pad));
361 GstPad *otherpad, *peer;
363 GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
364 if (pad == self->srcpad)
365 otherpad = gst_object_ref (self->sinkpad);
367 otherpad = gst_object_ref (self->srcpad);
368 GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
370 peer = gst_pad_get_peer (otherpad);
372 ret = gst_pad_get_caps (peer, filter);
373 gst_object_unref (peer);
375 ret = (filter ? gst_caps_ref (filter) : gst_caps_new_any ());
378 gst_object_unref (otherpad);
379 gst_object_unref (self);
385 gst_play_sink_audio_convert_finalize (GObject * object)
387 GstPlaySinkAudioConvert *self = GST_PLAY_SINK_AUDIO_CONVERT_CAST (object);
390 gst_object_unref (self->volume);
392 gst_object_unref (self->sink_proxypad);
393 g_mutex_free (self->lock);
395 G_OBJECT_CLASS (parent_class)->finalize (object);
398 static GstStateChangeReturn
399 gst_play_sink_audio_convert_change_state (GstElement * element,
400 GstStateChange transition)
402 GstStateChangeReturn ret;
403 GstPlaySinkAudioConvert *self = GST_PLAY_SINK_AUDIO_CONVERT_CAST (element);
405 switch (transition) {
406 case GST_STATE_CHANGE_PAUSED_TO_READY:
407 GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
408 unblock_proxypad (self);
409 GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
415 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
416 if (ret == GST_STATE_CHANGE_FAILURE)
419 switch (transition) {
420 case GST_STATE_CHANGE_PAUSED_TO_READY:
421 GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
422 gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
424 gst_element_set_state (self->conv, GST_STATE_NULL);
425 gst_bin_remove (GST_BIN_CAST (self), self->conv);
428 if (self->resample) {
429 gst_element_set_state (self->resample, GST_STATE_NULL);
430 gst_bin_remove (GST_BIN_CAST (self), self->resample);
431 self->resample = NULL;
434 gst_element_set_state (self->volume, GST_STATE_NULL);
435 if (GST_OBJECT_PARENT (self->volume) == GST_OBJECT_CAST (self)) {
436 gst_bin_remove (GST_BIN_CAST (self), self->volume);
439 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
440 self->sink_proxypad);
442 GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
444 case GST_STATE_CHANGE_READY_TO_PAUSED:
445 GST_PLAY_SINK_AUDIO_CONVERT_LOCK (self);
446 unblock_proxypad (self);
447 GST_PLAY_SINK_AUDIO_CONVERT_UNLOCK (self);
456 gst_play_sink_audio_convert_class_init (GstPlaySinkAudioConvertClass * klass)
458 GObjectClass *gobject_class;
459 GstElementClass *gstelement_class;
461 GST_DEBUG_CATEGORY_INIT (gst_play_sink_audio_convert_debug,
462 "playsinkaudioconvert", 0, "play bin");
464 gobject_class = (GObjectClass *) klass;
465 gstelement_class = (GstElementClass *) klass;
467 gobject_class->finalize = gst_play_sink_audio_convert_finalize;
469 gst_element_class_add_pad_template (gstelement_class,
470 gst_static_pad_template_get (&srctemplate));
471 gst_element_class_add_pad_template (gstelement_class,
472 gst_static_pad_template_get (&sinktemplate));
473 gst_element_class_set_details_simple (gstelement_class,
474 "Player Sink Audio Converter", "Audio/Bin/Converter",
475 "Convenience bin for audio conversion",
476 "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
478 gstelement_class->change_state =
479 GST_DEBUG_FUNCPTR (gst_play_sink_audio_convert_change_state);
483 gst_play_sink_audio_convert_init (GstPlaySinkAudioConvert * self)
485 GstPadTemplate *templ;
487 self->lock = g_mutex_new ();
488 gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
490 templ = gst_static_pad_template_get (&sinktemplate);
491 self->sinkpad = gst_ghost_pad_new_no_target_from_template ("sink", templ);
492 gst_pad_set_event_function (self->sinkpad,
493 GST_DEBUG_FUNCPTR (gst_play_sink_audio_convert_sink_event));
494 gst_pad_set_getcaps_function (self->sinkpad,
495 GST_DEBUG_FUNCPTR (gst_play_sink_audio_convert_getcaps));
497 self->sink_proxypad =
498 GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD (self->sinkpad)));
500 gst_element_add_pad (GST_ELEMENT_CAST (self), self->sinkpad);
501 gst_object_unref (templ);
503 templ = gst_static_pad_template_get (&srctemplate);
504 self->srcpad = gst_ghost_pad_new_no_target_from_template ("src", templ);
505 gst_pad_set_getcaps_function (self->srcpad,
506 GST_DEBUG_FUNCPTR (gst_play_sink_audio_convert_getcaps));
507 gst_element_add_pad (GST_ELEMENT_CAST (self), self->srcpad);
508 gst_object_unref (templ);
510 gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
511 self->sink_proxypad);
513 /* FIXME: Only create this on demand but for now we need
514 * it to always exist because of playsink's volume proxying
517 self->volume = gst_element_factory_make ("volume", "volume");
519 gst_object_ref_sink (self->volume);