ext/pulse/pulsesink.h

/*-*- Mode: C; c-basic-offset: 2 -*-*/

/*
 *  GStreamer pulseaudio plugin
 *
 *  Copyright (c) 2004-2008 Lennart Poettering
 *
 *  gst-pulse is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as
 *  published by the Free Software Foundation; either version 2.1 of the
 *  License, or (at your option) any later version.
 *
 *  gst-pulse is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with gst-pulse; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
 *  USA.
 */

#ifndef __GST_PULSESINK_H__
#define __GST_PULSESINK_H__

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <gst/gst.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiosink.h>

#include <pulse/pulseaudio.h>
#include <pulse/thread-mainloop.h>

#include "pulseprobe.h"

G_BEGIN_DECLS

#define GST_TYPE_PULSESINK \
  (gst_pulsesink_get_type())
#define GST_PULSESINK(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PULSESINK,GstPulseSink))
#define GST_PULSESINK_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PULSESINK,GstPulseSinkClass))
#define GST_IS_PULSESINK(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PULSESINK))
#define GST_IS_PULSESINK_CLASS(obj) \
  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PULSESINK))
#define GST_PULSESINK_CAST(obj) \
  ((GstPulseSink *)(obj))

typedef struct _GstPulseSink GstPulseSink;
typedef struct _GstPulseSinkClass GstPulseSinkClass;

typedef struct _GstPulseDeviceInfo {
  gchar *description;
  GList *formats;
} GstPulseDeviceInfo;

struct _GstPulseSink
{
  GstAudioBaseSink sink;

  gchar *server, *device, *stream_name, *client_name;
  GstPulseDeviceInfo device_info;

  GstPulseProbe *probe;

  gdouble volume;
  gboolean volume_set:1;
  gboolean mute:1;
  gboolean mute_set:1;

  guint defer_pending;

  gint notify; /* atomic */

  const gchar *pa_version;

  GstStructure *properties;
  pa_proplist *proplist;

  volatile gint format_lost;
  GstClockTime format_lost_time;
};

struct _GstPulseSinkClass
{
  GstAudioBaseSinkClass parent_class;
};

GType gst_pulsesink_get_type (void);

#if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
# define FORMATS   "{ S16LE, S16BE, F32LE, F32BE, S32LE, S32BE, " \
                     "S24LE, S24BE, S24_32LE, S24_32BE, U8 }"
#else
# define FORMATS   "{ S16BE, S16LE, F32BE, F32LE, S32BE, S32LE, " \
                     "S24BE, S24LE, S24_32BE, S24_32LE, U8 }"
#endif

#define _PULSE_SINK_CAPS_LINEAR \
    "audio/x-raw, " \
      "format = (string) " FORMATS ", " \
      "layout = (string) interleaved, " \
      "rate = (int) [ 1, MAX ], " \
      "channels = (int) [ 1, 32 ]; "
#define _PULSE_SINK_CAPS_ALAW \
    "audio/x-alaw, " \
      "rate = (int) [ 1, MAX], " \
      "channels = (int) [ 1, 32 ]; "
#define _PULSE_SINK_CAPS_MULAW \
    "audio/x-mulaw, " \
      "rate = (int) [ 1, MAX], " \
      "channels = (int) [ 1, 32 ]; "

#define _PULSE_SINK_CAPS_AC3 "audio/x-ac3, framed = (boolean) true; "
#define _PULSE_SINK_CAPS_EAC3 "audio/x-eac3, framed = (boolean) true; "
#define _PULSE_SINK_CAPS_DTS "audio/x-dts, framed = (boolean) true, " \
    "block-size = (int) { 512, 1024, 2048 }; "
#define _PULSE_SINK_CAPS_MP3 "audio/mpeg, mpegversion = (int) 1, " \
    "mpegaudioversion = (int) [ 1, 2 ], parsed = (boolean) true;"

#define _PULSE_SINK_CAPS_PCM \
  _PULSE_SINK_CAPS_LINEAR \
  _PULSE_SINK_CAPS_ALAW \
  _PULSE_SINK_CAPS_MULAW

#define PULSE_SINK_TEMPLATE_CAPS \
  _PULSE_SINK_CAPS_PCM \
  _PULSE_SINK_CAPS_AC3 \
  _PULSE_SINK_CAPS_EAC3 \
  _PULSE_SINK_CAPS_DTS \
  _PULSE_SINK_CAPS_MP3

G_END_DECLS

#endif /* __GST_PULSESINK_H__ */