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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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04786a6d31
This drops support fof PulseAudio versions prior to 0.9.16, which was released about 1.5 years ago. Testing with very old versions is not feasible and we don't want to maintain 2 independent code-paths.
2653 lines
75 KiB
C
2653 lines
75 KiB
C
/*-*- Mode: C; c-basic-offset: 2 -*-*/
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/* GStreamer pulseaudio plugin
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*
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* Copyright (c) 2004-2008 Lennart Poettering
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* (c) 2009 Wim Taymans
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*
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* gst-pulse is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of the
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* License, or (at your option) any later version.
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*
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* gst-pulse is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with gst-pulse; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA.
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*/
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/**
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* SECTION:element-pulsesink
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* @see_also: pulsesrc, pulsemixer
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*
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* This element outputs audio to a
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* <ulink href="http://www.pulseaudio.org">PulseAudio sound server</ulink>.
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*
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* <refsect2>
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* <title>Example pipelines</title>
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* |[
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* gst-launch -v filesrc location=sine.ogg ! oggdemux ! vorbisdec ! audioconvert ! audioresample ! pulsesink
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* ]| Play an Ogg/Vorbis file.
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* |[
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* gst-launch -v audiotestsrc ! audioconvert ! volume volume=0.4 ! pulsesink
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* ]| Play a 440Hz sine wave.
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* |[
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* gst-launch -v audiotestsrc ! pulsesink stream-properties="props,media.title=test"
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* ]| Play a sine wave and set a stream property. The property can be checked
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* with "pactl list".
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <stdio.h>
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#include <gst/base/gstbasesink.h>
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#include <gst/gsttaglist.h>
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#include <gst/interfaces/streamvolume.h>
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#include <gst/gst-i18n-plugin.h>
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#include <gst/pbutils/pbutils.h> /* only used for GST_PLUGINS_BASE_VERSION_* */
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#include "pulsesink.h"
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#include "pulseutil.h"
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GST_DEBUG_CATEGORY_EXTERN (pulse_debug);
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#define GST_CAT_DEFAULT pulse_debug
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#define DEFAULT_SERVER NULL
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#define DEFAULT_DEVICE NULL
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#define DEFAULT_DEVICE_NAME NULL
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#define DEFAULT_VOLUME 1.0
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#define DEFAULT_MUTE FALSE
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#define MAX_VOLUME 10.0
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enum
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{
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PROP_0,
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PROP_SERVER,
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PROP_DEVICE,
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PROP_DEVICE_NAME,
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PROP_VOLUME,
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PROP_MUTE,
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PROP_CLIENT,
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PROP_STREAM_PROPERTIES,
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PROP_LAST
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};
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#define GST_TYPE_PULSERING_BUFFER \
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(gst_pulseringbuffer_get_type())
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#define GST_PULSERING_BUFFER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PULSERING_BUFFER,GstPulseRingBuffer))
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#define GST_PULSERING_BUFFER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PULSERING_BUFFER,GstPulseRingBufferClass))
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#define GST_PULSERING_BUFFER_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_PULSERING_BUFFER, GstPulseRingBufferClass))
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#define GST_PULSERING_BUFFER_CAST(obj) \
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((GstPulseRingBuffer *)obj)
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#define GST_IS_PULSERING_BUFFER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PULSERING_BUFFER))
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#define GST_IS_PULSERING_BUFFER_CLASS(klass)\
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PULSERING_BUFFER))
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typedef struct _GstPulseRingBuffer GstPulseRingBuffer;
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typedef struct _GstPulseRingBufferClass GstPulseRingBufferClass;
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typedef struct _GstPulseContext GstPulseContext;
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/* Store the PA contexts in a hash table to allow easy sharing among
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* multiple instances of the sink. Keys are $context_name@$server_name
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* (strings) and values should be GstPulseContext pointers.
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*/
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struct _GstPulseContext
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{
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pa_context *context;
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GSList *ring_buffers;
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};
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static GHashTable *gst_pulse_shared_contexts = NULL;
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/* use one static main-loop for all instances
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* this is needed to make the context sharing work as the contexts are
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* released when releasing their parent main-loop
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*/
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static pa_threaded_mainloop *mainloop = NULL;
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static guint mainloop_ref_ct = 0;
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/* lock for access to shared resources */
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static GMutex *pa_shared_resource_mutex = NULL;
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/* We keep a custom ringbuffer that is backed up by data allocated by
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* pulseaudio. We must also overide the commit function to write into
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* pulseaudio memory instead. */
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struct _GstPulseRingBuffer
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{
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GstRingBuffer object;
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gchar *context_name;
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gchar *stream_name;
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pa_context *context;
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pa_stream *stream;
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pa_sample_spec sample_spec;
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void *m_data;
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size_t m_towrite;
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size_t m_writable;
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gint64 m_offset;
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gint64 m_lastoffset;
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gboolean corked:1;
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gboolean in_commit:1;
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gboolean paused:1;
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};
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struct _GstPulseRingBufferClass
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{
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GstRingBufferClass parent_class;
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};
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static GType gst_pulseringbuffer_get_type (void);
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static void gst_pulseringbuffer_finalize (GObject * object);
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static GstRingBufferClass *ring_parent_class = NULL;
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static gboolean gst_pulseringbuffer_open_device (GstRingBuffer * buf);
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static gboolean gst_pulseringbuffer_close_device (GstRingBuffer * buf);
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static gboolean gst_pulseringbuffer_acquire (GstRingBuffer * buf,
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GstRingBufferSpec * spec);
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static gboolean gst_pulseringbuffer_release (GstRingBuffer * buf);
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static gboolean gst_pulseringbuffer_start (GstRingBuffer * buf);
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static gboolean gst_pulseringbuffer_pause (GstRingBuffer * buf);
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static gboolean gst_pulseringbuffer_stop (GstRingBuffer * buf);
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static void gst_pulseringbuffer_clear (GstRingBuffer * buf);
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static guint gst_pulseringbuffer_commit (GstRingBuffer * buf,
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guint64 * sample, guchar * data, gint in_samples, gint out_samples,
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gint * accum);
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G_DEFINE_TYPE (GstPulseRingBuffer, gst_pulseringbuffer, GST_TYPE_RING_BUFFER);
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static void
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gst_pulsesink_init_contexts (void)
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{
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g_assert (pa_shared_resource_mutex == NULL);
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pa_shared_resource_mutex = g_mutex_new ();
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gst_pulse_shared_contexts = g_hash_table_new_full (g_str_hash, g_str_equal,
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g_free, NULL);
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}
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static void
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gst_pulseringbuffer_class_init (GstPulseRingBufferClass * klass)
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{
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GObjectClass *gobject_class;
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GstRingBufferClass *gstringbuffer_class;
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gobject_class = (GObjectClass *) klass;
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gstringbuffer_class = (GstRingBufferClass *) klass;
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ring_parent_class = g_type_class_peek_parent (klass);
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gobject_class->finalize = gst_pulseringbuffer_finalize;
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gstringbuffer_class->open_device =
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GST_DEBUG_FUNCPTR (gst_pulseringbuffer_open_device);
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gstringbuffer_class->close_device =
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GST_DEBUG_FUNCPTR (gst_pulseringbuffer_close_device);
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gstringbuffer_class->acquire =
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GST_DEBUG_FUNCPTR (gst_pulseringbuffer_acquire);
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gstringbuffer_class->release =
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GST_DEBUG_FUNCPTR (gst_pulseringbuffer_release);
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gstringbuffer_class->start = GST_DEBUG_FUNCPTR (gst_pulseringbuffer_start);
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gstringbuffer_class->pause = GST_DEBUG_FUNCPTR (gst_pulseringbuffer_pause);
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gstringbuffer_class->resume = GST_DEBUG_FUNCPTR (gst_pulseringbuffer_start);
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gstringbuffer_class->stop = GST_DEBUG_FUNCPTR (gst_pulseringbuffer_stop);
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gstringbuffer_class->clear_all =
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GST_DEBUG_FUNCPTR (gst_pulseringbuffer_clear);
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gstringbuffer_class->commit = GST_DEBUG_FUNCPTR (gst_pulseringbuffer_commit);
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}
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static void
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gst_pulseringbuffer_init (GstPulseRingBuffer * pbuf)
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{
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pbuf->stream_name = NULL;
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pbuf->context = NULL;
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pbuf->stream = NULL;
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pa_sample_spec_init (&pbuf->sample_spec);
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pbuf->m_data = NULL;
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pbuf->m_towrite = 0;
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pbuf->m_writable = 0;
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pbuf->m_offset = 0;
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pbuf->m_lastoffset = 0;
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pbuf->corked = TRUE;
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pbuf->in_commit = FALSE;
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pbuf->paused = FALSE;
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}
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static void
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gst_pulsering_destroy_stream (GstPulseRingBuffer * pbuf)
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{
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if (pbuf->stream) {
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if (pbuf->m_data) {
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/* drop shm memory buffer */
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pa_stream_cancel_write (pbuf->stream);
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/* reset internal variables */
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pbuf->m_data = NULL;
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pbuf->m_towrite = 0;
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pbuf->m_writable = 0;
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pbuf->m_offset = 0;
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pbuf->m_lastoffset = 0;
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}
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pa_stream_disconnect (pbuf->stream);
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/* Make sure we don't get any further callbacks */
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pa_stream_set_state_callback (pbuf->stream, NULL, NULL);
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pa_stream_set_write_callback (pbuf->stream, NULL, NULL);
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pa_stream_set_underflow_callback (pbuf->stream, NULL, NULL);
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pa_stream_set_overflow_callback (pbuf->stream, NULL, NULL);
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pa_stream_unref (pbuf->stream);
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pbuf->stream = NULL;
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}
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g_free (pbuf->stream_name);
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pbuf->stream_name = NULL;
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}
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static void
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gst_pulsering_destroy_context (GstPulseRingBuffer * pbuf)
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{
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g_mutex_lock (pa_shared_resource_mutex);
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GST_DEBUG_OBJECT (pbuf, "destroying ringbuffer %p", pbuf);
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gst_pulsering_destroy_stream (pbuf);
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if (pbuf->context) {
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pa_context_unref (pbuf->context);
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pbuf->context = NULL;
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}
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if (pbuf->context_name) {
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GstPulseContext *pctx;
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pctx = g_hash_table_lookup (gst_pulse_shared_contexts, pbuf->context_name);
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GST_DEBUG_OBJECT (pbuf, "releasing context with name %s, pbuf=%p, pctx=%p",
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pbuf->context_name, pbuf, pctx);
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if (pctx) {
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pctx->ring_buffers = g_slist_remove (pctx->ring_buffers, pbuf);
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if (pctx->ring_buffers == NULL) {
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GST_DEBUG_OBJECT (pbuf,
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"destroying final context with name %s, pbuf=%p, pctx=%p",
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pbuf->context_name, pbuf, pctx);
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pa_context_disconnect (pctx->context);
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/* Make sure we don't get any further callbacks */
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pa_context_set_state_callback (pctx->context, NULL, NULL);
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pa_context_set_subscribe_callback (pctx->context, NULL, NULL);
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g_hash_table_remove (gst_pulse_shared_contexts, pbuf->context_name);
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pa_context_unref (pctx->context);
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g_slice_free (GstPulseContext, pctx);
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}
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}
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g_free (pbuf->context_name);
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pbuf->context_name = NULL;
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}
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g_mutex_unlock (pa_shared_resource_mutex);
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}
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static void
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gst_pulseringbuffer_finalize (GObject * object)
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{
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GstPulseRingBuffer *ringbuffer;
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ringbuffer = GST_PULSERING_BUFFER_CAST (object);
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gst_pulsering_destroy_context (ringbuffer);
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G_OBJECT_CLASS (ring_parent_class)->finalize (object);
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}
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#define CONTEXT_OK(c) ((c) && PA_CONTEXT_IS_GOOD (pa_context_get_state ((c))))
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#define STREAM_OK(s) ((s) && PA_STREAM_IS_GOOD (pa_stream_get_state ((s))))
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static gboolean
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gst_pulsering_is_dead (GstPulseSink * psink, GstPulseRingBuffer * pbuf,
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gboolean check_stream)
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{
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if (!CONTEXT_OK (pbuf->context))
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goto error;
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if (check_stream && !STREAM_OK (pbuf->stream))
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goto error;
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return FALSE;
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error:
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{
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const gchar *err_str =
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pbuf->context ? pa_strerror (pa_context_errno (pbuf->context)) : NULL;
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GST_ELEMENT_ERROR (psink, RESOURCE, FAILED, ("Disconnected: %s",
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err_str), (NULL));
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return TRUE;
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}
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}
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static void
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gst_pulsering_context_state_cb (pa_context * c, void *userdata)
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{
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pa_context_state_t state;
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pa_threaded_mainloop *mainloop = (pa_threaded_mainloop *) userdata;
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state = pa_context_get_state (c);
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GST_LOG ("got new context state %d", state);
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switch (state) {
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case PA_CONTEXT_READY:
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case PA_CONTEXT_TERMINATED:
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case PA_CONTEXT_FAILED:
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GST_LOG ("signaling");
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pa_threaded_mainloop_signal (mainloop, 0);
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break;
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case PA_CONTEXT_UNCONNECTED:
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case PA_CONTEXT_CONNECTING:
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case PA_CONTEXT_AUTHORIZING:
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case PA_CONTEXT_SETTING_NAME:
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break;
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}
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}
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static void
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gst_pulsering_context_subscribe_cb (pa_context * c,
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pa_subscription_event_type_t t, uint32_t idx, void *userdata)
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{
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GstPulseSink *psink;
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GstPulseContext *pctx = (GstPulseContext *) userdata;
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GSList *walk;
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if (t != (PA_SUBSCRIPTION_EVENT_SINK_INPUT | PA_SUBSCRIPTION_EVENT_CHANGE) &&
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t != (PA_SUBSCRIPTION_EVENT_SINK_INPUT | PA_SUBSCRIPTION_EVENT_NEW))
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return;
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for (walk = pctx->ring_buffers; walk; walk = g_slist_next (walk)) {
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GstPulseRingBuffer *pbuf = (GstPulseRingBuffer *) walk->data;
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psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
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GST_LOG_OBJECT (psink, "type %d, idx %u", t, idx);
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if (!pbuf->stream)
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continue;
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if (idx != pa_stream_get_index (pbuf->stream))
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continue;
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/* Actually this event is also triggered when other properties of
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* the stream change that are unrelated to the volume. However it is
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* probably cheaper to signal the change here and check for the
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* volume when the GObject property is read instead of querying it always. */
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/* inform streaming thread to notify */
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g_atomic_int_compare_and_exchange (&psink->notify, 0, 1);
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}
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}
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/* will be called when the device should be opened. In this case we will connect
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* to the server. We should not try to open any streams in this state. */
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static gboolean
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gst_pulseringbuffer_open_device (GstRingBuffer * buf)
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{
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GstPulseSink *psink;
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GstPulseRingBuffer *pbuf;
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GstPulseContext *pctx;
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pa_mainloop_api *api;
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gboolean need_unlock_shared;
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psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (buf));
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pbuf = GST_PULSERING_BUFFER_CAST (buf);
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g_assert (!pbuf->stream);
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g_assert (psink->client_name);
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if (psink->server)
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pbuf->context_name = g_strdup_printf ("%s@%s", psink->client_name,
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psink->server);
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else
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pbuf->context_name = g_strdup (psink->client_name);
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pa_threaded_mainloop_lock (mainloop);
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g_mutex_lock (pa_shared_resource_mutex);
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need_unlock_shared = TRUE;
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pctx = g_hash_table_lookup (gst_pulse_shared_contexts, pbuf->context_name);
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if (pctx == NULL) {
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pctx = g_slice_new0 (GstPulseContext);
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/* get the mainloop api and create a context */
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GST_INFO_OBJECT (psink, "new context with name %s, pbuf=%p, pctx=%p",
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pbuf->context_name, pbuf, pctx);
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api = pa_threaded_mainloop_get_api (mainloop);
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if (!(pctx->context = pa_context_new (api, pbuf->context_name)))
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goto create_failed;
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pctx->ring_buffers = g_slist_prepend (pctx->ring_buffers, pbuf);
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g_hash_table_insert (gst_pulse_shared_contexts,
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g_strdup (pbuf->context_name), (gpointer) pctx);
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/* register some essential callbacks */
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pa_context_set_state_callback (pctx->context,
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gst_pulsering_context_state_cb, mainloop);
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pa_context_set_subscribe_callback (pctx->context,
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gst_pulsering_context_subscribe_cb, pctx);
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|
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/* try to connect to the server and wait for completion, we don't want to
|
|
* autospawn a deamon */
|
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GST_LOG_OBJECT (psink, "connect to server %s",
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GST_STR_NULL (psink->server));
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if (pa_context_connect (pctx->context, psink->server,
|
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PA_CONTEXT_NOAUTOSPAWN, NULL) < 0)
|
|
goto connect_failed;
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|
} else {
|
|
GST_INFO_OBJECT (psink,
|
|
"reusing shared context with name %s, pbuf=%p, pctx=%p",
|
|
pbuf->context_name, pbuf, pctx);
|
|
pctx->ring_buffers = g_slist_prepend (pctx->ring_buffers, pbuf);
|
|
}
|
|
|
|
g_mutex_unlock (pa_shared_resource_mutex);
|
|
need_unlock_shared = FALSE;
|
|
|
|
/* context created or shared okay */
|
|
pbuf->context = pa_context_ref (pctx->context);
|
|
|
|
for (;;) {
|
|
pa_context_state_t state;
|
|
|
|
state = pa_context_get_state (pbuf->context);
|
|
|
|
GST_LOG_OBJECT (psink, "context state is now %d", state);
|
|
|
|
if (!PA_CONTEXT_IS_GOOD (state))
|
|
goto connect_failed;
|
|
|
|
if (state == PA_CONTEXT_READY)
|
|
break;
|
|
|
|
/* Wait until the context is ready */
|
|
GST_LOG_OBJECT (psink, "waiting..");
|
|
pa_threaded_mainloop_wait (mainloop);
|
|
}
|
|
|
|
GST_LOG_OBJECT (psink, "opened the device");
|
|
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
unlock_and_fail:
|
|
{
|
|
if (need_unlock_shared)
|
|
g_mutex_unlock (pa_shared_resource_mutex);
|
|
gst_pulsering_destroy_context (pbuf);
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
return FALSE;
|
|
}
|
|
create_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("Failed to create context"), (NULL));
|
|
g_slice_free (GstPulseContext, pctx);
|
|
goto unlock_and_fail;
|
|
}
|
|
connect_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED, ("Failed to connect: %s",
|
|
pa_strerror (pa_context_errno (pctx->context))), (NULL));
|
|
goto unlock_and_fail;
|
|
}
|
|
}
|
|
|
|
/* close the device */
|
|
static gboolean
|
|
gst_pulseringbuffer_close_device (GstRingBuffer * buf)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (buf);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (buf));
|
|
|
|
GST_LOG_OBJECT (psink, "closing device");
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
gst_pulsering_destroy_context (pbuf);
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
GST_LOG_OBJECT (psink, "closed device");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_pulsering_stream_state_cb (pa_stream * s, void *userdata)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
pa_stream_state_t state;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
state = pa_stream_get_state (s);
|
|
GST_LOG_OBJECT (psink, "got new stream state %d", state);
|
|
|
|
switch (state) {
|
|
case PA_STREAM_READY:
|
|
case PA_STREAM_FAILED:
|
|
case PA_STREAM_TERMINATED:
|
|
GST_LOG_OBJECT (psink, "signaling");
|
|
pa_threaded_mainloop_signal (mainloop, 0);
|
|
break;
|
|
case PA_STREAM_UNCONNECTED:
|
|
case PA_STREAM_CREATING:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsering_stream_request_cb (pa_stream * s, size_t length, void *userdata)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstRingBuffer *rbuf;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
rbuf = GST_RING_BUFFER_CAST (userdata);
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
GST_LOG_OBJECT (psink, "got request for length %" G_GSIZE_FORMAT, length);
|
|
|
|
if (pbuf->in_commit && (length >= rbuf->spec.segsize)) {
|
|
/* only signal when we are waiting in the commit thread
|
|
* and got request for atleast a segment */
|
|
pa_threaded_mainloop_signal (mainloop, 0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsering_stream_underflow_cb (pa_stream * s, void *userdata)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
GST_WARNING_OBJECT (psink, "Got underflow");
|
|
}
|
|
|
|
static void
|
|
gst_pulsering_stream_overflow_cb (pa_stream * s, void *userdata)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
GST_WARNING_OBJECT (psink, "Got overflow");
|
|
}
|
|
|
|
static void
|
|
gst_pulsering_stream_latency_cb (pa_stream * s, void *userdata)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
const pa_timing_info *info;
|
|
pa_usec_t sink_usec;
|
|
|
|
info = pa_stream_get_timing_info (s);
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
if (!info) {
|
|
GST_LOG_OBJECT (psink, "latency update (information unknown)");
|
|
return;
|
|
}
|
|
sink_usec = info->configured_sink_usec;
|
|
|
|
GST_LOG_OBJECT (psink,
|
|
"latency_update, %" G_GUINT64_FORMAT ", %d:%" G_GINT64_FORMAT ", %d:%"
|
|
G_GUINT64_FORMAT ", %" G_GUINT64_FORMAT ", %" G_GUINT64_FORMAT,
|
|
GST_TIMEVAL_TO_TIME (info->timestamp), info->write_index_corrupt,
|
|
info->write_index, info->read_index_corrupt, info->read_index,
|
|
info->sink_usec, sink_usec);
|
|
}
|
|
|
|
static void
|
|
gst_pulsering_stream_suspended_cb (pa_stream * p, void *userdata)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
if (pa_stream_is_suspended (p))
|
|
GST_DEBUG_OBJECT (psink, "stream suspended");
|
|
else
|
|
GST_DEBUG_OBJECT (psink, "stream resumed");
|
|
}
|
|
|
|
static void
|
|
gst_pulsering_stream_started_cb (pa_stream * p, void *userdata)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
GST_DEBUG_OBJECT (psink, "stream started");
|
|
}
|
|
|
|
static void
|
|
gst_pulsering_stream_event_cb (pa_stream * p, const char *name,
|
|
pa_proplist * pl, void *userdata)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
if (!strcmp (name, PA_STREAM_EVENT_REQUEST_CORK)) {
|
|
/* the stream wants to PAUSE, post a message for the application. */
|
|
GST_DEBUG_OBJECT (psink, "got request for CORK");
|
|
gst_element_post_message (GST_ELEMENT_CAST (psink),
|
|
gst_message_new_request_state (GST_OBJECT_CAST (psink),
|
|
GST_STATE_PAUSED));
|
|
|
|
} else if (!strcmp (name, PA_STREAM_EVENT_REQUEST_UNCORK)) {
|
|
GST_DEBUG_OBJECT (psink, "got request for UNCORK");
|
|
gst_element_post_message (GST_ELEMENT_CAST (psink),
|
|
gst_message_new_request_state (GST_OBJECT_CAST (psink),
|
|
GST_STATE_PLAYING));
|
|
} else {
|
|
GST_DEBUG_OBJECT (psink, "got unknown event %s", name);
|
|
}
|
|
}
|
|
|
|
/* This method should create a new stream of the given @spec. No playback should
|
|
* start yet so we start in the corked state. */
|
|
static gboolean
|
|
gst_pulseringbuffer_acquire (GstRingBuffer * buf, GstRingBufferSpec * spec)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
pa_buffer_attr wanted;
|
|
const pa_buffer_attr *actual;
|
|
pa_channel_map channel_map;
|
|
pa_operation *o = NULL;
|
|
#ifdef HAVE_PULSE_0_9_20
|
|
pa_cvolume v;
|
|
#endif
|
|
pa_cvolume *pv = NULL;
|
|
pa_stream_flags_t flags;
|
|
const gchar *name;
|
|
GstAudioClock *clock;
|
|
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (buf));
|
|
pbuf = GST_PULSERING_BUFFER_CAST (buf);
|
|
|
|
GST_LOG_OBJECT (psink, "creating sample spec");
|
|
/* convert the gstreamer sample spec to the pulseaudio format */
|
|
if (!gst_pulse_fill_sample_spec (spec, &pbuf->sample_spec))
|
|
goto invalid_spec;
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
|
|
/* we need a context and a no stream */
|
|
g_assert (pbuf->context);
|
|
g_assert (!pbuf->stream);
|
|
|
|
/* enable event notifications */
|
|
GST_LOG_OBJECT (psink, "subscribing to context events");
|
|
if (!(o = pa_context_subscribe (pbuf->context,
|
|
PA_SUBSCRIPTION_MASK_SINK_INPUT, NULL, NULL)))
|
|
goto subscribe_failed;
|
|
|
|
pa_operation_unref (o);
|
|
|
|
/* initialize the channel map */
|
|
gst_pulse_gst_to_channel_map (&channel_map, spec);
|
|
|
|
/* find a good name for the stream */
|
|
if (psink->stream_name)
|
|
name = psink->stream_name;
|
|
else
|
|
name = "Playback Stream";
|
|
|
|
/* create a stream */
|
|
GST_LOG_OBJECT (psink, "creating stream with name %s", name);
|
|
if (!(pbuf->stream = pa_stream_new_with_proplist (pbuf->context, name,
|
|
&pbuf->sample_spec, &channel_map, psink->proplist)))
|
|
goto stream_failed;
|
|
|
|
/* install essential callbacks */
|
|
pa_stream_set_state_callback (pbuf->stream,
|
|
gst_pulsering_stream_state_cb, pbuf);
|
|
pa_stream_set_write_callback (pbuf->stream,
|
|
gst_pulsering_stream_request_cb, pbuf);
|
|
pa_stream_set_underflow_callback (pbuf->stream,
|
|
gst_pulsering_stream_underflow_cb, pbuf);
|
|
pa_stream_set_overflow_callback (pbuf->stream,
|
|
gst_pulsering_stream_overflow_cb, pbuf);
|
|
pa_stream_set_latency_update_callback (pbuf->stream,
|
|
gst_pulsering_stream_latency_cb, pbuf);
|
|
pa_stream_set_suspended_callback (pbuf->stream,
|
|
gst_pulsering_stream_suspended_cb, pbuf);
|
|
pa_stream_set_started_callback (pbuf->stream,
|
|
gst_pulsering_stream_started_cb, pbuf);
|
|
pa_stream_set_event_callback (pbuf->stream,
|
|
gst_pulsering_stream_event_cb, pbuf);
|
|
|
|
/* buffering requirements. When setting prebuf to 0, the stream will not pause
|
|
* when we cause an underrun, which causes time to continue. */
|
|
memset (&wanted, 0, sizeof (wanted));
|
|
wanted.tlength = spec->segtotal * spec->segsize;
|
|
wanted.maxlength = -1;
|
|
wanted.prebuf = 0;
|
|
wanted.minreq = spec->segsize;
|
|
|
|
GST_INFO_OBJECT (psink, "tlength: %d", wanted.tlength);
|
|
GST_INFO_OBJECT (psink, "maxlength: %d", wanted.maxlength);
|
|
GST_INFO_OBJECT (psink, "prebuf: %d", wanted.prebuf);
|
|
GST_INFO_OBJECT (psink, "minreq: %d", wanted.minreq);
|
|
|
|
#ifdef HAVE_PULSE_0_9_20
|
|
/* configure volume when we changed it, else we leave the default */
|
|
if (psink->volume_set) {
|
|
GST_LOG_OBJECT (psink, "have volume of %f", psink->volume);
|
|
pv = &v;
|
|
gst_pulse_cvolume_from_linear (pv, pbuf->sample_spec.channels,
|
|
psink->volume);
|
|
} else {
|
|
pv = NULL;
|
|
}
|
|
#endif
|
|
|
|
/* construct the flags */
|
|
flags = PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE |
|
|
PA_STREAM_ADJUST_LATENCY | PA_STREAM_START_CORKED;
|
|
|
|
if (psink->mute_set && psink->mute)
|
|
flags |= PA_STREAM_START_MUTED;
|
|
|
|
/* we always start corked (see flags above) */
|
|
pbuf->corked = TRUE;
|
|
|
|
/* try to connect now */
|
|
GST_LOG_OBJECT (psink, "connect for playback to device %s",
|
|
GST_STR_NULL (psink->device));
|
|
if (pa_stream_connect_playback (pbuf->stream, psink->device,
|
|
&wanted, flags, pv, NULL) < 0)
|
|
goto connect_failed;
|
|
|
|
/* our clock will now start from 0 again */
|
|
clock = GST_AUDIO_CLOCK (GST_BASE_AUDIO_SINK (psink)->provided_clock);
|
|
gst_audio_clock_reset (clock, 0);
|
|
|
|
for (;;) {
|
|
pa_stream_state_t state;
|
|
|
|
state = pa_stream_get_state (pbuf->stream);
|
|
|
|
GST_LOG_OBJECT (psink, "stream state is now %d", state);
|
|
|
|
if (!PA_STREAM_IS_GOOD (state))
|
|
goto connect_failed;
|
|
|
|
if (state == PA_STREAM_READY)
|
|
break;
|
|
|
|
/* Wait until the stream is ready */
|
|
pa_threaded_mainloop_wait (mainloop);
|
|
}
|
|
|
|
/* After we passed the volume off of to PA we never want to set it
|
|
again, since it is PA's job to save/restore volumes. */
|
|
psink->volume_set = psink->mute_set = FALSE;
|
|
|
|
GST_LOG_OBJECT (psink, "stream is acquired now");
|
|
|
|
/* get the actual buffering properties now */
|
|
actual = pa_stream_get_buffer_attr (pbuf->stream);
|
|
|
|
GST_INFO_OBJECT (psink, "tlength: %d (wanted: %d)", actual->tlength,
|
|
wanted.tlength);
|
|
GST_INFO_OBJECT (psink, "maxlength: %d", actual->maxlength);
|
|
GST_INFO_OBJECT (psink, "prebuf: %d", actual->prebuf);
|
|
GST_INFO_OBJECT (psink, "minreq: %d (wanted %d)", actual->minreq,
|
|
wanted.minreq);
|
|
|
|
spec->segsize = actual->minreq;
|
|
spec->segtotal = actual->tlength / spec->segsize;
|
|
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
unlock_and_fail:
|
|
{
|
|
gst_pulsering_destroy_stream (pbuf);
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return FALSE;
|
|
}
|
|
invalid_spec:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, SETTINGS,
|
|
("Invalid sample specification."), (NULL));
|
|
return FALSE;
|
|
}
|
|
subscribe_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_context_subscribe() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock_and_fail;
|
|
}
|
|
stream_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("Failed to create stream: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock_and_fail;
|
|
}
|
|
connect_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("Failed to connect stream: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock_and_fail;
|
|
}
|
|
}
|
|
|
|
/* free the stream that we acquired before */
|
|
static gboolean
|
|
gst_pulseringbuffer_release (GstRingBuffer * buf)
|
|
{
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (buf);
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
gst_pulsering_destroy_stream (pbuf);
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_pulsering_success_cb (pa_stream * s, int success, void *userdata)
|
|
{
|
|
pa_threaded_mainloop_signal (mainloop, 0);
|
|
}
|
|
|
|
/* update the corked state of a stream, must be called with the mainloop
|
|
* lock */
|
|
static gboolean
|
|
gst_pulsering_set_corked (GstPulseRingBuffer * pbuf, gboolean corked,
|
|
gboolean wait)
|
|
{
|
|
pa_operation *o = NULL;
|
|
GstPulseSink *psink;
|
|
gboolean res = FALSE;
|
|
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
GST_DEBUG_OBJECT (psink, "setting corked state to %d", corked);
|
|
if (pbuf->corked != corked) {
|
|
if (!(o = pa_stream_cork (pbuf->stream, corked,
|
|
gst_pulsering_success_cb, pbuf)))
|
|
goto cork_failed;
|
|
|
|
while (wait && pa_operation_get_state (o) == PA_OPERATION_RUNNING) {
|
|
pa_threaded_mainloop_wait (mainloop);
|
|
if (gst_pulsering_is_dead (psink, pbuf, TRUE))
|
|
goto server_dead;
|
|
}
|
|
pbuf->corked = corked;
|
|
} else {
|
|
GST_DEBUG_OBJECT (psink, "skipping, already in requested state");
|
|
}
|
|
res = TRUE;
|
|
|
|
cleanup:
|
|
if (o)
|
|
pa_operation_unref (o);
|
|
|
|
return res;
|
|
|
|
/* ERRORS */
|
|
server_dead:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "the server is dead");
|
|
goto cleanup;
|
|
}
|
|
cork_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_stream_cork() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulseringbuffer_clear (GstRingBuffer * buf)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
pa_operation *o = NULL;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (buf);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
GST_DEBUG_OBJECT (psink, "clearing");
|
|
if (pbuf->stream) {
|
|
/* don't wait for the flush to complete */
|
|
if ((o = pa_stream_flush (pbuf->stream, NULL, pbuf)))
|
|
pa_operation_unref (o);
|
|
}
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
}
|
|
|
|
static void
|
|
mainloop_enter_defer_cb (pa_mainloop_api * api, void *userdata)
|
|
{
|
|
GstPulseSink *pulsesink = GST_PULSESINK (userdata);
|
|
GstMessage *message;
|
|
GValue val = { 0 };
|
|
|
|
g_value_init (&val, G_TYPE_POINTER);
|
|
g_value_set_pointer (&val, g_thread_self ());
|
|
|
|
GST_DEBUG_OBJECT (pulsesink, "posting ENTER stream status");
|
|
message = gst_message_new_stream_status (GST_OBJECT (pulsesink),
|
|
GST_STREAM_STATUS_TYPE_ENTER, GST_ELEMENT (pulsesink));
|
|
gst_message_set_stream_status_object (message, &val);
|
|
|
|
gst_element_post_message (GST_ELEMENT (pulsesink), message);
|
|
|
|
/* signal the waiter */
|
|
pulsesink->pa_defer_ran = TRUE;
|
|
pa_threaded_mainloop_signal (mainloop, 0);
|
|
}
|
|
|
|
/* start/resume playback ASAP, we don't uncork here but in the commit method */
|
|
static gboolean
|
|
gst_pulseringbuffer_start (GstRingBuffer * buf)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (buf);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
|
|
GST_DEBUG_OBJECT (psink, "scheduling stream status");
|
|
psink->pa_defer_ran = FALSE;
|
|
pa_mainloop_api_once (pa_threaded_mainloop_get_api (mainloop),
|
|
mainloop_enter_defer_cb, psink);
|
|
|
|
GST_DEBUG_OBJECT (psink, "starting");
|
|
pbuf->paused = FALSE;
|
|
|
|
/* EOS needs running clock */
|
|
if (GST_BASE_SINK_CAST (psink)->eos ||
|
|
g_atomic_int_get (&GST_BASE_AUDIO_SINK (psink)->abidata.ABI.
|
|
eos_rendering))
|
|
gst_pulsering_set_corked (pbuf, FALSE, FALSE);
|
|
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* pause/stop playback ASAP */
|
|
static gboolean
|
|
gst_pulseringbuffer_pause (GstRingBuffer * buf)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
gboolean res;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (buf);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
GST_DEBUG_OBJECT (psink, "pausing and corking");
|
|
/* make sure the commit method stops writing */
|
|
pbuf->paused = TRUE;
|
|
res = gst_pulsering_set_corked (pbuf, TRUE, TRUE);
|
|
if (pbuf->in_commit) {
|
|
/* we are waiting in a commit, signal */
|
|
GST_DEBUG_OBJECT (psink, "signal commit");
|
|
pa_threaded_mainloop_signal (mainloop, 0);
|
|
}
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
mainloop_leave_defer_cb (pa_mainloop_api * api, void *userdata)
|
|
{
|
|
GstPulseSink *pulsesink = GST_PULSESINK (userdata);
|
|
GstMessage *message;
|
|
GValue val = { 0 };
|
|
|
|
g_value_init (&val, G_TYPE_POINTER);
|
|
g_value_set_pointer (&val, g_thread_self ());
|
|
|
|
GST_DEBUG_OBJECT (pulsesink, "posting LEAVE stream status");
|
|
message = gst_message_new_stream_status (GST_OBJECT (pulsesink),
|
|
GST_STREAM_STATUS_TYPE_LEAVE, GST_ELEMENT (pulsesink));
|
|
gst_message_set_stream_status_object (message, &val);
|
|
gst_element_post_message (GST_ELEMENT (pulsesink), message);
|
|
|
|
pulsesink->pa_defer_ran = TRUE;
|
|
pa_threaded_mainloop_signal (mainloop, 0);
|
|
gst_object_unref (pulsesink);
|
|
}
|
|
|
|
/* stop playback, we flush everything. */
|
|
static gboolean
|
|
gst_pulseringbuffer_stop (GstRingBuffer * buf)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
gboolean res = FALSE;
|
|
pa_operation *o = NULL;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (buf);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
pbuf->paused = TRUE;
|
|
res = gst_pulsering_set_corked (pbuf, TRUE, TRUE);
|
|
/* Inform anyone waiting in _commit() call that it shall wakeup */
|
|
if (pbuf->in_commit) {
|
|
GST_DEBUG_OBJECT (psink, "signal commit thread");
|
|
pa_threaded_mainloop_signal (mainloop, 0);
|
|
}
|
|
|
|
/* then try to flush, it's not fatal when this fails */
|
|
GST_DEBUG_OBJECT (psink, "flushing");
|
|
if ((o = pa_stream_flush (pbuf->stream, gst_pulsering_success_cb, pbuf))) {
|
|
while (pa_operation_get_state (o) == PA_OPERATION_RUNNING) {
|
|
GST_DEBUG_OBJECT (psink, "wait for completion");
|
|
pa_threaded_mainloop_wait (mainloop);
|
|
if (gst_pulsering_is_dead (psink, pbuf, TRUE))
|
|
goto server_dead;
|
|
}
|
|
GST_DEBUG_OBJECT (psink, "flush completed");
|
|
}
|
|
res = TRUE;
|
|
|
|
cleanup:
|
|
if (o) {
|
|
pa_operation_cancel (o);
|
|
pa_operation_unref (o);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (psink, "scheduling stream status");
|
|
psink->pa_defer_ran = FALSE;
|
|
gst_object_ref (psink);
|
|
pa_mainloop_api_once (pa_threaded_mainloop_get_api (mainloop),
|
|
mainloop_leave_defer_cb, psink);
|
|
|
|
GST_DEBUG_OBJECT (psink, "waiting for stream status");
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return res;
|
|
|
|
/* ERRORS */
|
|
server_dead:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "the server is dead");
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
/* in_samples >= out_samples, rate > 1.0 */
|
|
#define FWD_UP_SAMPLES(s,se,d,de) \
|
|
G_STMT_START { \
|
|
guint8 *sb = s, *db = d; \
|
|
while (s <= se && d < de) { \
|
|
memcpy (d, s, bps); \
|
|
s += bps; \
|
|
*accum += outr; \
|
|
if ((*accum << 1) >= inr) { \
|
|
*accum -= inr; \
|
|
d += bps; \
|
|
} \
|
|
} \
|
|
in_samples -= (s - sb)/bps; \
|
|
out_samples -= (d - db)/bps; \
|
|
GST_DEBUG ("fwd_up end %d/%d",*accum,*toprocess); \
|
|
} G_STMT_END
|
|
|
|
/* out_samples > in_samples, for rates smaller than 1.0 */
|
|
#define FWD_DOWN_SAMPLES(s,se,d,de) \
|
|
G_STMT_START { \
|
|
guint8 *sb = s, *db = d; \
|
|
while (s <= se && d < de) { \
|
|
memcpy (d, s, bps); \
|
|
d += bps; \
|
|
*accum += inr; \
|
|
if ((*accum << 1) >= outr) { \
|
|
*accum -= outr; \
|
|
s += bps; \
|
|
} \
|
|
} \
|
|
in_samples -= (s - sb)/bps; \
|
|
out_samples -= (d - db)/bps; \
|
|
GST_DEBUG ("fwd_down end %d/%d",*accum,*toprocess); \
|
|
} G_STMT_END
|
|
|
|
#define REV_UP_SAMPLES(s,se,d,de) \
|
|
G_STMT_START { \
|
|
guint8 *sb = se, *db = d; \
|
|
while (s <= se && d < de) { \
|
|
memcpy (d, se, bps); \
|
|
se -= bps; \
|
|
*accum += outr; \
|
|
while (d < de && (*accum << 1) >= inr) { \
|
|
*accum -= inr; \
|
|
d += bps; \
|
|
} \
|
|
} \
|
|
in_samples -= (sb - se)/bps; \
|
|
out_samples -= (d - db)/bps; \
|
|
GST_DEBUG ("rev_up end %d/%d",*accum,*toprocess); \
|
|
} G_STMT_END
|
|
|
|
#define REV_DOWN_SAMPLES(s,se,d,de) \
|
|
G_STMT_START { \
|
|
guint8 *sb = se, *db = d; \
|
|
while (s <= se && d < de) { \
|
|
memcpy (d, se, bps); \
|
|
d += bps; \
|
|
*accum += inr; \
|
|
while (s <= se && (*accum << 1) >= outr) { \
|
|
*accum -= outr; \
|
|
se -= bps; \
|
|
} \
|
|
} \
|
|
in_samples -= (sb - se)/bps; \
|
|
out_samples -= (d - db)/bps; \
|
|
GST_DEBUG ("rev_down end %d/%d",*accum,*toprocess); \
|
|
} G_STMT_END
|
|
|
|
|
|
/* our custom commit function because we write into the buffer of pulseaudio
|
|
* instead of keeping our own buffer */
|
|
static guint
|
|
gst_pulseringbuffer_commit (GstRingBuffer * buf, guint64 * sample,
|
|
guchar * data, gint in_samples, gint out_samples, gint * accum)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
guint result;
|
|
guint8 *data_end;
|
|
gboolean reverse;
|
|
gint *toprocess;
|
|
gint inr, outr, bps;
|
|
gint64 offset;
|
|
guint bufsize;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (buf);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
/* FIXME post message rather than using a signal (as mixer interface) */
|
|
if (g_atomic_int_compare_and_exchange (&psink->notify, 1, 0)) {
|
|
g_object_notify (G_OBJECT (psink), "volume");
|
|
g_object_notify (G_OBJECT (psink), "mute");
|
|
}
|
|
|
|
/* make sure the ringbuffer is started */
|
|
if (G_UNLIKELY (g_atomic_int_get (&buf->state) !=
|
|
GST_RING_BUFFER_STATE_STARTED)) {
|
|
/* see if we are allowed to start it */
|
|
if (G_UNLIKELY (g_atomic_int_get (&buf->abidata.ABI.may_start) == FALSE))
|
|
goto no_start;
|
|
|
|
GST_DEBUG_OBJECT (buf, "start!");
|
|
if (!gst_ring_buffer_start (buf))
|
|
goto start_failed;
|
|
}
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
GST_DEBUG_OBJECT (psink, "entering commit");
|
|
pbuf->in_commit = TRUE;
|
|
|
|
bps = buf->spec.bytes_per_sample;
|
|
bufsize = buf->spec.segsize * buf->spec.segtotal;
|
|
|
|
/* our toy resampler for trick modes */
|
|
reverse = out_samples < 0;
|
|
out_samples = ABS (out_samples);
|
|
|
|
if (in_samples >= out_samples)
|
|
toprocess = &in_samples;
|
|
else
|
|
toprocess = &out_samples;
|
|
|
|
inr = in_samples - 1;
|
|
outr = out_samples - 1;
|
|
|
|
GST_DEBUG_OBJECT (psink, "in %d, out %d", inr, outr);
|
|
|
|
/* data_end points to the last sample we have to write, not past it. This is
|
|
* needed to properly handle reverse playback: it points to the last sample. */
|
|
data_end = data + (bps * inr);
|
|
|
|
if (pbuf->paused)
|
|
goto was_paused;
|
|
|
|
/* offset is in bytes */
|
|
offset = *sample * bps;
|
|
|
|
while (*toprocess > 0) {
|
|
size_t avail;
|
|
guint towrite;
|
|
|
|
GST_LOG_OBJECT (psink,
|
|
"need to write %d samples at offset %" G_GINT64_FORMAT, *toprocess,
|
|
offset);
|
|
|
|
if (offset != pbuf->m_lastoffset)
|
|
GST_LOG_OBJECT (psink, "discontinuity, offset is %" G_GINT64_FORMAT ", "
|
|
"last offset was %" G_GINT64_FORMAT, offset, pbuf->m_lastoffset);
|
|
|
|
towrite = out_samples * bps;
|
|
|
|
/* Only ever write segsize bytes at once. This will
|
|
* also limit the PA shm buffer to segsize
|
|
*/
|
|
if (towrite > buf->spec.segsize)
|
|
towrite = buf->spec.segsize;
|
|
|
|
if ((pbuf->m_writable < towrite) || (offset != pbuf->m_lastoffset)) {
|
|
/* if no room left or discontinuity in offset,
|
|
we need to flush data and get a new buffer */
|
|
|
|
/* flush the buffer if possible */
|
|
if ((pbuf->m_data != NULL) && (pbuf->m_towrite > 0)) {
|
|
|
|
GST_LOG_OBJECT (psink,
|
|
"flushing %u samples at offset %" G_GINT64_FORMAT,
|
|
(guint) pbuf->m_towrite / bps, pbuf->m_offset);
|
|
|
|
if (pa_stream_write (pbuf->stream, (uint8_t *) pbuf->m_data,
|
|
pbuf->m_towrite, NULL, pbuf->m_offset, PA_SEEK_ABSOLUTE) < 0) {
|
|
goto write_failed;
|
|
}
|
|
}
|
|
pbuf->m_towrite = 0;
|
|
pbuf->m_offset = offset; /* keep track of current offset */
|
|
|
|
/* get a buffer to write in for now on */
|
|
for (;;) {
|
|
pbuf->m_writable = pa_stream_writable_size (pbuf->stream);
|
|
|
|
if (pbuf->m_writable == (size_t) - 1)
|
|
goto writable_size_failed;
|
|
|
|
pbuf->m_writable /= bps;
|
|
pbuf->m_writable *= bps; /* handle only complete samples */
|
|
|
|
if (pbuf->m_writable >= towrite)
|
|
break;
|
|
|
|
/* see if we need to uncork because we have no free space */
|
|
if (pbuf->corked) {
|
|
if (!gst_pulsering_set_corked (pbuf, FALSE, FALSE))
|
|
goto uncork_failed;
|
|
}
|
|
|
|
/* we can't write a single byte, wait a bit */
|
|
GST_LOG_OBJECT (psink, "waiting for free space");
|
|
pa_threaded_mainloop_wait (mainloop);
|
|
|
|
if (pbuf->paused)
|
|
goto was_paused;
|
|
}
|
|
|
|
/* make sure we only buffer up latency-time samples */
|
|
if (pbuf->m_writable > buf->spec.segsize) {
|
|
/* limit buffering to latency-time value */
|
|
pbuf->m_writable = buf->spec.segsize;
|
|
|
|
GST_LOG_OBJECT (psink, "Limiting buffering to %" G_GSIZE_FORMAT,
|
|
pbuf->m_writable);
|
|
}
|
|
|
|
GST_LOG_OBJECT (psink, "requesting %" G_GSIZE_FORMAT " bytes of "
|
|
"shared memory", pbuf->m_writable);
|
|
|
|
if (pa_stream_begin_write (pbuf->stream, &pbuf->m_data,
|
|
&pbuf->m_writable) < 0) {
|
|
GST_LOG_OBJECT (psink, "pa_stream_begin_write() failed");
|
|
goto writable_size_failed;
|
|
}
|
|
|
|
GST_LOG_OBJECT (psink, "got %" G_GSIZE_FORMAT " bytes of shared memory",
|
|
pbuf->m_writable);
|
|
|
|
/* Just to make sure that we didn't get more than requested */
|
|
if (pbuf->m_writable > buf->spec.segsize) {
|
|
/* limit buffering to latency-time value */
|
|
pbuf->m_writable = buf->spec.segsize;
|
|
}
|
|
}
|
|
|
|
if (pbuf->m_writable < towrite)
|
|
towrite = pbuf->m_writable;
|
|
avail = towrite / bps;
|
|
|
|
GST_LOG_OBJECT (psink, "writing %u samples at offset %" G_GUINT64_FORMAT,
|
|
(guint) avail, offset);
|
|
|
|
if (G_LIKELY (inr == outr && !reverse)) {
|
|
/* no rate conversion, simply write out the samples */
|
|
/* copy the data into internal buffer */
|
|
|
|
memcpy ((guint8 *) pbuf->m_data + pbuf->m_towrite, data, towrite);
|
|
pbuf->m_towrite += towrite;
|
|
pbuf->m_writable -= towrite;
|
|
|
|
data += towrite;
|
|
in_samples -= avail;
|
|
out_samples -= avail;
|
|
} else {
|
|
guint8 *dest, *d, *d_end;
|
|
|
|
/* write into the PulseAudio shm buffer */
|
|
dest = d = (guint8 *) pbuf->m_data + pbuf->m_towrite;
|
|
d_end = d + towrite;
|
|
|
|
if (!reverse) {
|
|
if (inr >= outr)
|
|
/* forward speed up */
|
|
FWD_UP_SAMPLES (data, data_end, d, d_end);
|
|
else
|
|
/* forward slow down */
|
|
FWD_DOWN_SAMPLES (data, data_end, d, d_end);
|
|
} else {
|
|
if (inr >= outr)
|
|
/* reverse speed up */
|
|
REV_UP_SAMPLES (data, data_end, d, d_end);
|
|
else
|
|
/* reverse slow down */
|
|
REV_DOWN_SAMPLES (data, data_end, d, d_end);
|
|
}
|
|
/* see what we have left to write */
|
|
towrite = (d - dest);
|
|
pbuf->m_towrite += towrite;
|
|
pbuf->m_writable -= towrite;
|
|
|
|
avail = towrite / bps;
|
|
}
|
|
|
|
/* flush the buffer if it's full */
|
|
if ((pbuf->m_data != NULL) && (pbuf->m_towrite > 0)
|
|
&& (pbuf->m_writable == 0)) {
|
|
GST_LOG_OBJECT (psink, "flushing %u samples at offset %" G_GINT64_FORMAT,
|
|
(guint) pbuf->m_towrite / bps, pbuf->m_offset);
|
|
|
|
if (pa_stream_write (pbuf->stream, (uint8_t *) pbuf->m_data,
|
|
pbuf->m_towrite, NULL, pbuf->m_offset, PA_SEEK_ABSOLUTE) < 0) {
|
|
goto write_failed;
|
|
}
|
|
pbuf->m_towrite = 0;
|
|
pbuf->m_offset = offset + towrite; /* keep track of current offset */
|
|
}
|
|
|
|
*sample += avail;
|
|
offset += avail * bps;
|
|
pbuf->m_lastoffset = offset;
|
|
|
|
/* check if we need to uncork after writing the samples */
|
|
if (pbuf->corked) {
|
|
const pa_timing_info *info;
|
|
|
|
if ((info = pa_stream_get_timing_info (pbuf->stream))) {
|
|
GST_LOG_OBJECT (psink,
|
|
"read_index at %" G_GUINT64_FORMAT ", offset %" G_GINT64_FORMAT,
|
|
info->read_index, offset);
|
|
|
|
/* we uncork when the read_index is too far behind the offset we need
|
|
* to write to. */
|
|
if (info->read_index + bufsize <= offset) {
|
|
if (!gst_pulsering_set_corked (pbuf, FALSE, FALSE))
|
|
goto uncork_failed;
|
|
}
|
|
} else {
|
|
GST_LOG_OBJECT (psink, "no timing info available yet");
|
|
}
|
|
}
|
|
}
|
|
/* we consumed all samples here */
|
|
data = data_end + bps;
|
|
|
|
pbuf->in_commit = FALSE;
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
done:
|
|
result = inr - ((data_end - data) / bps);
|
|
GST_LOG_OBJECT (psink, "wrote %d samples", result);
|
|
|
|
return result;
|
|
|
|
/* ERRORS */
|
|
unlock_and_fail:
|
|
{
|
|
pbuf->in_commit = FALSE;
|
|
GST_LOG_OBJECT (psink, "we are reset");
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
goto done;
|
|
}
|
|
no_start:
|
|
{
|
|
GST_LOG_OBJECT (psink, "we can not start");
|
|
return 0;
|
|
}
|
|
start_failed:
|
|
{
|
|
GST_LOG_OBJECT (psink, "failed to start the ringbuffer");
|
|
return 0;
|
|
}
|
|
uncork_failed:
|
|
{
|
|
pbuf->in_commit = FALSE;
|
|
GST_ERROR_OBJECT (psink, "uncork failed");
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
goto done;
|
|
}
|
|
was_paused:
|
|
{
|
|
pbuf->in_commit = FALSE;
|
|
GST_LOG_OBJECT (psink, "we are paused");
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
goto done;
|
|
}
|
|
writable_size_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_stream_writable_size() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock_and_fail;
|
|
}
|
|
write_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_stream_write() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock_and_fail;
|
|
}
|
|
}
|
|
|
|
/* write pending local samples, must be called with the mainloop lock */
|
|
static void
|
|
gst_pulsering_flush (GstPulseRingBuffer * pbuf)
|
|
{
|
|
GstPulseSink *psink;
|
|
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
GST_DEBUG_OBJECT (psink, "entering flush");
|
|
|
|
/* flush the buffer if possible */
|
|
if (pbuf->stream && (pbuf->m_data != NULL) && (pbuf->m_towrite > 0)) {
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
gint bps;
|
|
|
|
bps = (GST_RING_BUFFER_CAST (pbuf))->spec.bytes_per_sample;
|
|
GST_LOG_OBJECT (psink,
|
|
"flushing %u samples at offset %" G_GINT64_FORMAT,
|
|
(guint) pbuf->m_towrite / bps, pbuf->m_offset);
|
|
#endif
|
|
|
|
if (pa_stream_write (pbuf->stream, (uint8_t *) pbuf->m_data,
|
|
pbuf->m_towrite, NULL, pbuf->m_offset, PA_SEEK_ABSOLUTE) < 0) {
|
|
goto write_failed;
|
|
}
|
|
|
|
pbuf->m_towrite = 0;
|
|
pbuf->m_offset += pbuf->m_towrite; /* keep track of current offset */
|
|
}
|
|
|
|
done:
|
|
return;
|
|
|
|
/* ERRORS */
|
|
write_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_stream_write() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
static void gst_pulsesink_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec);
|
|
static void gst_pulsesink_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec);
|
|
static void gst_pulsesink_finalize (GObject * object);
|
|
|
|
static gboolean gst_pulsesink_event (GstBaseSink * sink, GstEvent * event);
|
|
|
|
static GstStateChangeReturn gst_pulsesink_change_state (GstElement * element,
|
|
GstStateChange transition);
|
|
|
|
static void gst_pulsesink_init_interfaces (GType type);
|
|
|
|
#if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
|
|
# define ENDIANNESS "LITTLE_ENDIAN, BIG_ENDIAN"
|
|
#else
|
|
# define ENDIANNESS "BIG_ENDIAN, LITTLE_ENDIAN"
|
|
#endif
|
|
|
|
GST_IMPLEMENT_PULSEPROBE_METHODS (GstPulseSink, gst_pulsesink);
|
|
|
|
#define _do_init(type) \
|
|
gst_pulsesink_init_contexts (); \
|
|
gst_pulsesink_init_interfaces (type);
|
|
|
|
GST_BOILERPLATE_FULL (GstPulseSink, gst_pulsesink, GstBaseAudioSink,
|
|
GST_TYPE_BASE_AUDIO_SINK, _do_init);
|
|
|
|
static gboolean
|
|
gst_pulsesink_interface_supported (GstImplementsInterface *
|
|
iface, GType interface_type)
|
|
{
|
|
GstPulseSink *this = GST_PULSESINK_CAST (iface);
|
|
|
|
if (interface_type == GST_TYPE_PROPERTY_PROBE && this->probe)
|
|
return TRUE;
|
|
if (interface_type == GST_TYPE_STREAM_VOLUME)
|
|
return TRUE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_implements_interface_init (GstImplementsInterfaceClass * klass)
|
|
{
|
|
klass->supported = gst_pulsesink_interface_supported;
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_init_interfaces (GType type)
|
|
{
|
|
static const GInterfaceInfo implements_iface_info = {
|
|
(GInterfaceInitFunc) gst_pulsesink_implements_interface_init,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
static const GInterfaceInfo probe_iface_info = {
|
|
(GInterfaceInitFunc) gst_pulsesink_property_probe_interface_init,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
static const GInterfaceInfo svol_iface_info = {
|
|
NULL, NULL, NULL
|
|
};
|
|
|
|
g_type_add_interface_static (type, GST_TYPE_STREAM_VOLUME, &svol_iface_info);
|
|
g_type_add_interface_static (type, GST_TYPE_IMPLEMENTS_INTERFACE,
|
|
&implements_iface_info);
|
|
g_type_add_interface_static (type, GST_TYPE_PROPERTY_PROBE,
|
|
&probe_iface_info);
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_base_init (gpointer g_class)
|
|
{
|
|
static GstStaticPadTemplate pad_template = GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("audio/x-raw-int, "
|
|
"endianness = (int) { " ENDIANNESS " }, "
|
|
"signed = (boolean) TRUE, "
|
|
"width = (int) 16, "
|
|
"depth = (int) 16, "
|
|
"rate = (int) [ 1, MAX ], "
|
|
"channels = (int) [ 1, 32 ];"
|
|
"audio/x-raw-float, "
|
|
"endianness = (int) { " ENDIANNESS " }, "
|
|
"width = (int) 32, "
|
|
"rate = (int) [ 1, MAX ], "
|
|
"channels = (int) [ 1, 32 ];"
|
|
"audio/x-raw-int, "
|
|
"endianness = (int) { " ENDIANNESS " }, "
|
|
"signed = (boolean) TRUE, "
|
|
"width = (int) 32, "
|
|
"depth = (int) 32, "
|
|
"rate = (int) [ 1, MAX ], " "channels = (int) [ 1, 32 ];"
|
|
"audio/x-raw-int, "
|
|
"endianness = (int) { " ENDIANNESS " }, "
|
|
"signed = (boolean) TRUE, "
|
|
"width = (int) 24, "
|
|
"depth = (int) 24, "
|
|
"rate = (int) [ 1, MAX ], "
|
|
"channels = (int) [ 1, 32 ];"
|
|
"audio/x-raw-int, "
|
|
"endianness = (int) { " ENDIANNESS " }, "
|
|
"signed = (boolean) TRUE, "
|
|
"width = (int) 32, "
|
|
"depth = (int) 24, "
|
|
"rate = (int) [ 1, MAX ], " "channels = (int) [ 1, 32 ];"
|
|
"audio/x-raw-int, "
|
|
"signed = (boolean) FALSE, "
|
|
"width = (int) 8, "
|
|
"depth = (int) 8, "
|
|
"rate = (int) [ 1, MAX ], "
|
|
"channels = (int) [ 1, 32 ];"
|
|
"audio/x-alaw, "
|
|
"rate = (int) [ 1, MAX], "
|
|
"channels = (int) [ 1, 32 ];"
|
|
"audio/x-mulaw, "
|
|
"rate = (int) [ 1, MAX], " "channels = (int) [ 1, 32 ]")
|
|
);
|
|
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
gst_element_class_set_details_simple (element_class,
|
|
"PulseAudio Audio Sink",
|
|
"Sink/Audio", "Plays audio to a PulseAudio server", "Lennart Poettering");
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&pad_template));
|
|
}
|
|
|
|
static GstRingBuffer *
|
|
gst_pulsesink_create_ringbuffer (GstBaseAudioSink * sink)
|
|
{
|
|
GstRingBuffer *buffer;
|
|
|
|
GST_DEBUG_OBJECT (sink, "creating ringbuffer");
|
|
buffer = g_object_new (GST_TYPE_PULSERING_BUFFER, NULL);
|
|
GST_DEBUG_OBJECT (sink, "created ringbuffer @%p", buffer);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_class_init (GstPulseSinkClass * klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
GstBaseSinkClass *gstbasesink_class = GST_BASE_SINK_CLASS (klass);
|
|
GstBaseSinkClass *bc;
|
|
GstBaseAudioSinkClass *gstaudiosink_class = GST_BASE_AUDIO_SINK_CLASS (klass);
|
|
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
|
|
|
|
gobject_class->finalize = gst_pulsesink_finalize;
|
|
gobject_class->set_property = gst_pulsesink_set_property;
|
|
gobject_class->get_property = gst_pulsesink_get_property;
|
|
|
|
gstbasesink_class->event = GST_DEBUG_FUNCPTR (gst_pulsesink_event);
|
|
|
|
/* restore the original basesink pull methods */
|
|
bc = g_type_class_peek (GST_TYPE_BASE_SINK);
|
|
gstbasesink_class->activate_pull = GST_DEBUG_FUNCPTR (bc->activate_pull);
|
|
|
|
gstelement_class->change_state =
|
|
GST_DEBUG_FUNCPTR (gst_pulsesink_change_state);
|
|
|
|
gstaudiosink_class->create_ringbuffer =
|
|
GST_DEBUG_FUNCPTR (gst_pulsesink_create_ringbuffer);
|
|
|
|
/* Overwrite GObject fields */
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_SERVER,
|
|
g_param_spec_string ("server", "Server",
|
|
"The PulseAudio server to connect to", DEFAULT_SERVER,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class, PROP_DEVICE,
|
|
g_param_spec_string ("device", "Device",
|
|
"The PulseAudio sink device to connect to", DEFAULT_DEVICE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_DEVICE_NAME,
|
|
g_param_spec_string ("device-name", "Device name",
|
|
"Human-readable name of the sound device", DEFAULT_DEVICE_NAME,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_VOLUME,
|
|
g_param_spec_double ("volume", "Volume",
|
|
"Linear volume of this stream, 1.0=100%", 0.0, MAX_VOLUME,
|
|
DEFAULT_VOLUME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_MUTE,
|
|
g_param_spec_boolean ("mute", "Mute",
|
|
"Mute state of this stream", DEFAULT_MUTE,
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstPulseSink:client
|
|
*
|
|
* The PulseAudio client name to use.
|
|
*
|
|
* Since: 0.10.25
|
|
*/
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_CLIENT,
|
|
g_param_spec_string ("client", "Client",
|
|
"The PulseAudio client name to use", gst_pulse_client_name (),
|
|
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
|
|
GST_PARAM_MUTABLE_READY));
|
|
|
|
/**
|
|
* GstPulseSink:stream-properties
|
|
*
|
|
* List of pulseaudio stream properties. A list of defined properties can be
|
|
* found in the <ulink url="http://0pointer.de/lennart/projects/pulseaudio/doxygen/proplist_8h.html">pulseaudio api docs</ulink>.
|
|
*
|
|
* Below is an example for registering as a music application to pulseaudio.
|
|
* |[
|
|
* GstStructure *props;
|
|
*
|
|
* props = gst_structure_from_string ("props,media.role=music", NULL);
|
|
* g_object_set (pulse, "stream-properties", props, NULL);
|
|
* gst_structure_free
|
|
* ]|
|
|
*
|
|
* Since: 0.10.26
|
|
*/
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_STREAM_PROPERTIES,
|
|
g_param_spec_boxed ("stream-properties", "stream properties",
|
|
"list of pulseaudio stream properties",
|
|
GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
}
|
|
|
|
/* returns the current time of the sink ringbuffer */
|
|
static GstClockTime
|
|
gst_pulsesink_get_time (GstClock * clock, GstBaseAudioSink * sink)
|
|
{
|
|
GstPulseSink *psink;
|
|
GstPulseRingBuffer *pbuf;
|
|
pa_usec_t time;
|
|
|
|
if (!sink->ringbuffer || !sink->ringbuffer->acquired)
|
|
return GST_CLOCK_TIME_NONE;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (sink->ringbuffer);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
if (gst_pulsering_is_dead (psink, pbuf, TRUE))
|
|
goto server_dead;
|
|
|
|
/* if we don't have enough data to get a timestamp, just return NONE, which
|
|
* will return the last reported time */
|
|
if (pa_stream_get_time (pbuf->stream, &time) < 0) {
|
|
GST_DEBUG_OBJECT (psink, "could not get time");
|
|
time = GST_CLOCK_TIME_NONE;
|
|
} else
|
|
time *= 1000;
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
GST_LOG_OBJECT (psink, "current time is %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (time));
|
|
|
|
return time;
|
|
|
|
/* ERRORS */
|
|
server_dead:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "the server is dead");
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return GST_CLOCK_TIME_NONE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_init (GstPulseSink * pulsesink, GstPulseSinkClass * klass)
|
|
{
|
|
pulsesink->server = NULL;
|
|
pulsesink->device = NULL;
|
|
pulsesink->device_description = NULL;
|
|
pulsesink->client_name = gst_pulse_client_name ();
|
|
|
|
pulsesink->volume = DEFAULT_VOLUME;
|
|
pulsesink->volume_set = FALSE;
|
|
|
|
pulsesink->mute = DEFAULT_MUTE;
|
|
pulsesink->mute_set = FALSE;
|
|
|
|
pulsesink->notify = 0;
|
|
|
|
pulsesink->properties = NULL;
|
|
pulsesink->proplist = NULL;
|
|
|
|
/* override with a custom clock */
|
|
if (GST_BASE_AUDIO_SINK (pulsesink)->provided_clock)
|
|
gst_object_unref (GST_BASE_AUDIO_SINK (pulsesink)->provided_clock);
|
|
|
|
GST_BASE_AUDIO_SINK (pulsesink)->provided_clock =
|
|
gst_audio_clock_new ("GstPulseSinkClock",
|
|
(GstAudioClockGetTimeFunc) gst_pulsesink_get_time, pulsesink);
|
|
|
|
/* TRUE for sinks, FALSE for sources */
|
|
pulsesink->probe = gst_pulseprobe_new (G_OBJECT (pulsesink),
|
|
G_OBJECT_GET_CLASS (pulsesink), PROP_DEVICE, pulsesink->device,
|
|
TRUE, FALSE);
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_finalize (GObject * object)
|
|
{
|
|
GstPulseSink *pulsesink = GST_PULSESINK_CAST (object);
|
|
|
|
g_free (pulsesink->server);
|
|
g_free (pulsesink->device);
|
|
g_free (pulsesink->device_description);
|
|
g_free (pulsesink->client_name);
|
|
|
|
if (pulsesink->properties)
|
|
gst_structure_free (pulsesink->properties);
|
|
if (pulsesink->proplist)
|
|
pa_proplist_free (pulsesink->proplist);
|
|
|
|
if (pulsesink->probe) {
|
|
gst_pulseprobe_free (pulsesink->probe);
|
|
pulsesink->probe = NULL;
|
|
}
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_set_volume (GstPulseSink * psink, gdouble volume)
|
|
{
|
|
pa_cvolume v;
|
|
pa_operation *o = NULL;
|
|
GstPulseRingBuffer *pbuf;
|
|
uint32_t idx;
|
|
|
|
if (!mainloop)
|
|
goto no_mainloop;
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
|
|
GST_DEBUG_OBJECT (psink, "setting volume to %f", volume);
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (GST_BASE_AUDIO_SINK (psink)->ringbuffer);
|
|
if (pbuf == NULL || pbuf->stream == NULL)
|
|
goto no_buffer;
|
|
|
|
if ((idx = pa_stream_get_index (pbuf->stream)) == PA_INVALID_INDEX)
|
|
goto no_index;
|
|
|
|
gst_pulse_cvolume_from_linear (&v, pbuf->sample_spec.channels, volume);
|
|
|
|
if (!(o = pa_context_set_sink_input_volume (pbuf->context, idx,
|
|
&v, NULL, NULL)))
|
|
goto volume_failed;
|
|
|
|
/* We don't really care about the result of this call */
|
|
unlock:
|
|
|
|
if (o)
|
|
pa_operation_unref (o);
|
|
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_mainloop:
|
|
{
|
|
psink->volume = volume;
|
|
psink->volume_set = TRUE;
|
|
|
|
GST_DEBUG_OBJECT (psink, "we have no mainloop");
|
|
return;
|
|
}
|
|
no_buffer:
|
|
{
|
|
psink->volume = volume;
|
|
psink->volume_set = TRUE;
|
|
|
|
GST_DEBUG_OBJECT (psink, "we have no ringbuffer");
|
|
goto unlock;
|
|
}
|
|
no_index:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we don't have a stream index");
|
|
goto unlock;
|
|
}
|
|
volume_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_stream_set_sink_input_volume() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_set_mute (GstPulseSink * psink, gboolean mute)
|
|
{
|
|
pa_operation *o = NULL;
|
|
GstPulseRingBuffer *pbuf;
|
|
uint32_t idx;
|
|
|
|
if (!mainloop)
|
|
goto no_mainloop;
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
|
|
GST_DEBUG_OBJECT (psink, "setting mute state to %d", mute);
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (GST_BASE_AUDIO_SINK (psink)->ringbuffer);
|
|
if (pbuf == NULL || pbuf->stream == NULL)
|
|
goto no_buffer;
|
|
|
|
if ((idx = pa_stream_get_index (pbuf->stream)) == PA_INVALID_INDEX)
|
|
goto no_index;
|
|
|
|
if (!(o = pa_context_set_sink_input_mute (pbuf->context, idx,
|
|
mute, NULL, NULL)))
|
|
goto mute_failed;
|
|
|
|
/* We don't really care about the result of this call */
|
|
unlock:
|
|
|
|
if (o)
|
|
pa_operation_unref (o);
|
|
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_mainloop:
|
|
{
|
|
psink->mute = mute;
|
|
psink->mute_set = TRUE;
|
|
|
|
GST_DEBUG_OBJECT (psink, "we have no mainloop");
|
|
return;
|
|
}
|
|
no_buffer:
|
|
{
|
|
psink->mute = mute;
|
|
psink->mute_set = TRUE;
|
|
|
|
GST_DEBUG_OBJECT (psink, "we have no ringbuffer");
|
|
goto unlock;
|
|
}
|
|
no_index:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we don't have a stream index");
|
|
goto unlock;
|
|
}
|
|
mute_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_stream_set_sink_input_mute() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_sink_input_info_cb (pa_context * c, const pa_sink_input_info * i,
|
|
int eol, void *userdata)
|
|
{
|
|
GstPulseRingBuffer *pbuf;
|
|
GstPulseSink *psink;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
if (!i)
|
|
goto done;
|
|
|
|
if (!pbuf->stream)
|
|
goto done;
|
|
|
|
/* If the index doesn't match our current stream,
|
|
* it implies we just recreated the stream (caps change)
|
|
*/
|
|
if (i->index == pa_stream_get_index (pbuf->stream)) {
|
|
psink->volume = pa_sw_volume_to_linear (pa_cvolume_max (&i->volume));
|
|
psink->mute = i->mute;
|
|
}
|
|
|
|
done:
|
|
pa_threaded_mainloop_signal (mainloop, 0);
|
|
}
|
|
|
|
static gdouble
|
|
gst_pulsesink_get_volume (GstPulseSink * psink)
|
|
{
|
|
GstPulseRingBuffer *pbuf;
|
|
pa_operation *o = NULL;
|
|
gdouble v = DEFAULT_VOLUME;
|
|
uint32_t idx;
|
|
|
|
if (!mainloop)
|
|
goto no_mainloop;
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (GST_BASE_AUDIO_SINK (psink)->ringbuffer);
|
|
if (pbuf == NULL || pbuf->stream == NULL)
|
|
goto no_buffer;
|
|
|
|
if ((idx = pa_stream_get_index (pbuf->stream)) == PA_INVALID_INDEX)
|
|
goto no_index;
|
|
|
|
if (!(o = pa_context_get_sink_input_info (pbuf->context, idx,
|
|
gst_pulsesink_sink_input_info_cb, pbuf)))
|
|
goto info_failed;
|
|
|
|
while (pa_operation_get_state (o) == PA_OPERATION_RUNNING) {
|
|
pa_threaded_mainloop_wait (mainloop);
|
|
if (gst_pulsering_is_dead (psink, pbuf, TRUE))
|
|
goto unlock;
|
|
}
|
|
|
|
unlock:
|
|
v = psink->volume;
|
|
|
|
if (o)
|
|
pa_operation_unref (o);
|
|
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
if (v > MAX_VOLUME) {
|
|
GST_WARNING_OBJECT (psink, "Clipped volume from %f to %f", v, MAX_VOLUME);
|
|
v = MAX_VOLUME;
|
|
}
|
|
|
|
return v;
|
|
|
|
/* ERRORS */
|
|
no_mainloop:
|
|
{
|
|
v = psink->volume;
|
|
GST_DEBUG_OBJECT (psink, "we have no mainloop");
|
|
return v;
|
|
}
|
|
no_buffer:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we have no ringbuffer");
|
|
goto unlock;
|
|
}
|
|
no_index:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we don't have a stream index");
|
|
goto unlock;
|
|
}
|
|
info_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_context_get_sink_input_info() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_pulsesink_get_mute (GstPulseSink * psink)
|
|
{
|
|
GstPulseRingBuffer *pbuf;
|
|
pa_operation *o = NULL;
|
|
uint32_t idx;
|
|
gboolean mute = FALSE;
|
|
|
|
if (!mainloop)
|
|
goto no_mainloop;
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
mute = psink->mute;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (GST_BASE_AUDIO_SINK (psink)->ringbuffer);
|
|
if (pbuf == NULL || pbuf->stream == NULL)
|
|
goto no_buffer;
|
|
|
|
if ((idx = pa_stream_get_index (pbuf->stream)) == PA_INVALID_INDEX)
|
|
goto no_index;
|
|
|
|
if (!(o = pa_context_get_sink_input_info (pbuf->context, idx,
|
|
gst_pulsesink_sink_input_info_cb, pbuf)))
|
|
goto info_failed;
|
|
|
|
while (pa_operation_get_state (o) == PA_OPERATION_RUNNING) {
|
|
pa_threaded_mainloop_wait (mainloop);
|
|
if (gst_pulsering_is_dead (psink, pbuf, TRUE))
|
|
goto unlock;
|
|
}
|
|
|
|
unlock:
|
|
if (o)
|
|
pa_operation_unref (o);
|
|
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return mute;
|
|
|
|
/* ERRORS */
|
|
no_mainloop:
|
|
{
|
|
mute = psink->mute;
|
|
GST_DEBUG_OBJECT (psink, "we have no mainloop");
|
|
return mute;
|
|
}
|
|
no_buffer:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we have no ringbuffer");
|
|
goto unlock;
|
|
}
|
|
no_index:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we don't have a stream index");
|
|
goto unlock;
|
|
}
|
|
info_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_context_get_sink_input_info() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_sink_info_cb (pa_context * c, const pa_sink_info * i, int eol,
|
|
void *userdata)
|
|
{
|
|
GstPulseRingBuffer *pbuf;
|
|
GstPulseSink *psink;
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (userdata);
|
|
psink = GST_PULSESINK_CAST (GST_OBJECT_PARENT (pbuf));
|
|
|
|
if (!i)
|
|
goto done;
|
|
|
|
g_free (psink->device_description);
|
|
psink->device_description = g_strdup (i->description);
|
|
|
|
done:
|
|
pa_threaded_mainloop_signal (mainloop, 0);
|
|
}
|
|
|
|
static gchar *
|
|
gst_pulsesink_device_description (GstPulseSink * psink)
|
|
{
|
|
GstPulseRingBuffer *pbuf;
|
|
pa_operation *o = NULL;
|
|
gchar *t;
|
|
|
|
if (!mainloop)
|
|
goto no_mainloop;
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
pbuf = GST_PULSERING_BUFFER_CAST (GST_BASE_AUDIO_SINK (psink)->ringbuffer);
|
|
if (pbuf == NULL)
|
|
goto no_buffer;
|
|
|
|
if (!(o = pa_context_get_sink_info_by_name (pbuf->context,
|
|
psink->device, gst_pulsesink_sink_info_cb, pbuf)))
|
|
goto info_failed;
|
|
|
|
while (pa_operation_get_state (o) == PA_OPERATION_RUNNING) {
|
|
pa_threaded_mainloop_wait (mainloop);
|
|
if (gst_pulsering_is_dead (psink, pbuf, FALSE))
|
|
goto unlock;
|
|
}
|
|
|
|
unlock:
|
|
if (o)
|
|
pa_operation_unref (o);
|
|
|
|
t = g_strdup (psink->device_description);
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return t;
|
|
|
|
/* ERRORS */
|
|
no_mainloop:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we have no mainloop");
|
|
return NULL;
|
|
}
|
|
no_buffer:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we have no ringbuffer");
|
|
goto unlock;
|
|
}
|
|
info_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_context_get_sink_info_by_index() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_set_property (GObject * object,
|
|
guint prop_id, const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstPulseSink *pulsesink = GST_PULSESINK_CAST (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_SERVER:
|
|
g_free (pulsesink->server);
|
|
pulsesink->server = g_value_dup_string (value);
|
|
if (pulsesink->probe)
|
|
gst_pulseprobe_set_server (pulsesink->probe, pulsesink->server);
|
|
break;
|
|
case PROP_DEVICE:
|
|
g_free (pulsesink->device);
|
|
pulsesink->device = g_value_dup_string (value);
|
|
break;
|
|
case PROP_VOLUME:
|
|
gst_pulsesink_set_volume (pulsesink, g_value_get_double (value));
|
|
break;
|
|
case PROP_MUTE:
|
|
gst_pulsesink_set_mute (pulsesink, g_value_get_boolean (value));
|
|
break;
|
|
case PROP_CLIENT:
|
|
g_free (pulsesink->client_name);
|
|
if (!g_value_get_string (value)) {
|
|
GST_WARNING_OBJECT (pulsesink,
|
|
"Empty PulseAudio client name not allowed. Resetting to default value");
|
|
pulsesink->client_name = gst_pulse_client_name ();
|
|
} else
|
|
pulsesink->client_name = g_value_dup_string (value);
|
|
break;
|
|
case PROP_STREAM_PROPERTIES:
|
|
if (pulsesink->properties)
|
|
gst_structure_free (pulsesink->properties);
|
|
pulsesink->properties =
|
|
gst_structure_copy (gst_value_get_structure (value));
|
|
if (pulsesink->proplist)
|
|
pa_proplist_free (pulsesink->proplist);
|
|
pulsesink->proplist = gst_pulse_make_proplist (pulsesink->properties);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec)
|
|
{
|
|
|
|
GstPulseSink *pulsesink = GST_PULSESINK_CAST (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_SERVER:
|
|
g_value_set_string (value, pulsesink->server);
|
|
break;
|
|
case PROP_DEVICE:
|
|
g_value_set_string (value, pulsesink->device);
|
|
break;
|
|
case PROP_DEVICE_NAME:
|
|
g_value_take_string (value, gst_pulsesink_device_description (pulsesink));
|
|
break;
|
|
case PROP_VOLUME:
|
|
g_value_set_double (value, gst_pulsesink_get_volume (pulsesink));
|
|
break;
|
|
case PROP_MUTE:
|
|
g_value_set_boolean (value, gst_pulsesink_get_mute (pulsesink));
|
|
break;
|
|
case PROP_CLIENT:
|
|
g_value_set_string (value, pulsesink->client_name);
|
|
break;
|
|
case PROP_STREAM_PROPERTIES:
|
|
gst_value_set_structure (value, pulsesink->properties);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_change_title (GstPulseSink * psink, const gchar * t)
|
|
{
|
|
pa_operation *o = NULL;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (GST_BASE_AUDIO_SINK (psink)->ringbuffer);
|
|
|
|
if (pbuf == NULL || pbuf->stream == NULL)
|
|
goto no_buffer;
|
|
|
|
g_free (pbuf->stream_name);
|
|
pbuf->stream_name = g_strdup (t);
|
|
|
|
if (!(o = pa_stream_set_name (pbuf->stream, pbuf->stream_name, NULL, NULL)))
|
|
goto name_failed;
|
|
|
|
/* We're not interested if this operation failed or not */
|
|
unlock:
|
|
|
|
if (o)
|
|
pa_operation_unref (o);
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_buffer:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we have no ringbuffer");
|
|
goto unlock;
|
|
}
|
|
name_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_stream_set_name() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_change_props (GstPulseSink * psink, GstTagList * l)
|
|
{
|
|
static const gchar *const map[] = {
|
|
GST_TAG_TITLE, PA_PROP_MEDIA_TITLE,
|
|
|
|
/* might get overriden in the next iteration by GST_TAG_ARTIST */
|
|
GST_TAG_PERFORMER, PA_PROP_MEDIA_ARTIST,
|
|
|
|
GST_TAG_ARTIST, PA_PROP_MEDIA_ARTIST,
|
|
GST_TAG_LANGUAGE_CODE, PA_PROP_MEDIA_LANGUAGE,
|
|
GST_TAG_LOCATION, PA_PROP_MEDIA_FILENAME,
|
|
/* We might add more here later on ... */
|
|
NULL
|
|
};
|
|
pa_proplist *pl = NULL;
|
|
const gchar *const *t;
|
|
gboolean empty = TRUE;
|
|
pa_operation *o = NULL;
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pl = pa_proplist_new ();
|
|
|
|
for (t = map; *t; t += 2) {
|
|
gchar *n = NULL;
|
|
|
|
if (gst_tag_list_get_string (l, *t, &n)) {
|
|
|
|
if (n && *n) {
|
|
pa_proplist_sets (pl, *(t + 1), n);
|
|
empty = FALSE;
|
|
}
|
|
|
|
g_free (n);
|
|
}
|
|
}
|
|
if (empty)
|
|
goto finish;
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
pbuf = GST_PULSERING_BUFFER_CAST (GST_BASE_AUDIO_SINK (psink)->ringbuffer);
|
|
if (pbuf == NULL || pbuf->stream == NULL)
|
|
goto no_buffer;
|
|
|
|
if (!(o = pa_stream_proplist_update (pbuf->stream, PA_UPDATE_REPLACE,
|
|
pl, NULL, NULL)))
|
|
goto update_failed;
|
|
|
|
/* We're not interested if this operation failed or not */
|
|
unlock:
|
|
|
|
if (o)
|
|
pa_operation_unref (o);
|
|
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
finish:
|
|
|
|
if (pl)
|
|
pa_proplist_free (pl);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_buffer:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we have no ringbuffer");
|
|
goto unlock;
|
|
}
|
|
update_failed:
|
|
{
|
|
GST_ELEMENT_ERROR (psink, RESOURCE, FAILED,
|
|
("pa_stream_proplist_update() failed: %s",
|
|
pa_strerror (pa_context_errno (pbuf->context))), (NULL));
|
|
goto unlock;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_pulsesink_flush_ringbuffer (GstPulseSink * psink)
|
|
{
|
|
GstPulseRingBuffer *pbuf;
|
|
|
|
pa_threaded_mainloop_lock (mainloop);
|
|
|
|
pbuf = GST_PULSERING_BUFFER_CAST (GST_BASE_AUDIO_SINK (psink)->ringbuffer);
|
|
|
|
if (pbuf == NULL || pbuf->stream == NULL)
|
|
goto no_buffer;
|
|
|
|
gst_pulsering_flush (pbuf);
|
|
|
|
/* Uncork if we haven't already (happens when waiting to get enough data
|
|
* to send out the first time) */
|
|
if (pbuf->corked)
|
|
gst_pulsering_set_corked (pbuf, FALSE, FALSE);
|
|
|
|
/* We're not interested if this operation failed or not */
|
|
unlock:
|
|
pa_threaded_mainloop_unlock (mainloop);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
no_buffer:
|
|
{
|
|
GST_DEBUG_OBJECT (psink, "we have no ringbuffer");
|
|
goto unlock;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_pulsesink_event (GstBaseSink * sink, GstEvent * event)
|
|
{
|
|
GstPulseSink *pulsesink = GST_PULSESINK_CAST (sink);
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_TAG:{
|
|
gchar *title = NULL, *artist = NULL, *location = NULL, *description =
|
|
NULL, *t = NULL, *buf = NULL;
|
|
GstTagList *l;
|
|
|
|
gst_event_parse_tag (event, &l);
|
|
|
|
gst_tag_list_get_string (l, GST_TAG_TITLE, &title);
|
|
gst_tag_list_get_string (l, GST_TAG_ARTIST, &artist);
|
|
gst_tag_list_get_string (l, GST_TAG_LOCATION, &location);
|
|
gst_tag_list_get_string (l, GST_TAG_DESCRIPTION, &description);
|
|
|
|
if (!artist)
|
|
gst_tag_list_get_string (l, GST_TAG_PERFORMER, &artist);
|
|
|
|
if (title && artist)
|
|
/* TRANSLATORS: 'song title' by 'artist name' */
|
|
t = buf = g_strdup_printf (_("'%s' by '%s'"), g_strstrip (title),
|
|
g_strstrip (artist));
|
|
else if (title)
|
|
t = g_strstrip (title);
|
|
else if (description)
|
|
t = g_strstrip (description);
|
|
else if (location)
|
|
t = g_strstrip (location);
|
|
|
|
if (t)
|
|
gst_pulsesink_change_title (pulsesink, t);
|
|
|
|
g_free (title);
|
|
g_free (artist);
|
|
g_free (location);
|
|
g_free (description);
|
|
g_free (buf);
|
|
|
|
gst_pulsesink_change_props (pulsesink, l);
|
|
|
|
break;
|
|
}
|
|
case GST_EVENT_EOS:
|
|
gst_pulsesink_flush_ringbuffer (pulsesink);
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
|
|
return GST_BASE_SINK_CLASS (parent_class)->event (sink, event);
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_pulsesink_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstPulseSink *pulsesink = GST_PULSESINK (element);
|
|
GstStateChangeReturn ret;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
g_mutex_lock (pa_shared_resource_mutex);
|
|
if (!mainloop_ref_ct) {
|
|
GST_INFO_OBJECT (element, "new pa main loop thread");
|
|
if (!(mainloop = pa_threaded_mainloop_new ()))
|
|
goto mainloop_failed;
|
|
mainloop_ref_ct = 1;
|
|
pa_threaded_mainloop_start (mainloop);
|
|
g_mutex_unlock (pa_shared_resource_mutex);
|
|
} else {
|
|
GST_INFO_OBJECT (element, "reusing pa main loop thread");
|
|
mainloop_ref_ct++;
|
|
g_mutex_unlock (pa_shared_resource_mutex);
|
|
}
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
gst_element_post_message (element,
|
|
gst_message_new_clock_provide (GST_OBJECT_CAST (element),
|
|
GST_BASE_AUDIO_SINK (pulsesink)->provided_clock, TRUE));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto state_failure;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
gst_element_post_message (element,
|
|
gst_message_new_clock_lost (GST_OBJECT_CAST (element),
|
|
GST_BASE_AUDIO_SINK (pulsesink)->provided_clock));
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
if (mainloop) {
|
|
g_mutex_lock (pa_shared_resource_mutex);
|
|
mainloop_ref_ct--;
|
|
if (!mainloop_ref_ct) {
|
|
GST_INFO_OBJECT (element, "terminating pa main loop thread");
|
|
pa_threaded_mainloop_stop (mainloop);
|
|
pa_threaded_mainloop_free (mainloop);
|
|
mainloop = NULL;
|
|
}
|
|
g_mutex_unlock (pa_shared_resource_mutex);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
mainloop_failed:
|
|
{
|
|
g_mutex_unlock (pa_shared_resource_mutex);
|
|
GST_ELEMENT_ERROR (pulsesink, RESOURCE, FAILED,
|
|
("pa_threaded_mainloop_new() failed"), (NULL));
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
state_failure:
|
|
{
|
|
if (transition == GST_STATE_CHANGE_NULL_TO_READY) {
|
|
/* Clear the PA mainloop if baseaudiosink failed to open the ring_buffer */
|
|
g_assert (mainloop);
|
|
g_mutex_lock (pa_shared_resource_mutex);
|
|
mainloop_ref_ct--;
|
|
if (!mainloop_ref_ct) {
|
|
GST_INFO_OBJECT (element, "terminating pa main loop thread");
|
|
pa_threaded_mainloop_stop (mainloop);
|
|
pa_threaded_mainloop_free (mainloop);
|
|
mainloop = NULL;
|
|
}
|
|
g_mutex_unlock (pa_shared_resource_mutex);
|
|
}
|
|
return ret;
|
|
}
|
|
}
|