tools/element-templates/audiosrc

/* vim: set filetype=c: */
% ClassName
GstAudioSrc
% TYPE_CLASS_NAME
GST_TYPE_AUDIO_SRC
% pads
srcpad-audio
% pkg-config
gstreamer-audio-1.0
% includes
#include <gst/audio/gstaudiosrc.h>
% prototypes
static gboolean gst_replace_open (GstAudioSrc * src);
static gboolean gst_replace_prepare (GstAudioSrc * src,
    GstAudioRingBufferSpec * spec);
static gboolean gst_replace_unprepare (GstAudioSrc * src);
static gboolean gst_replace_close (GstAudioSrc * src);
static guint gst_replace_read (GstAudioSrc * src, gpointer data, guint length,
    GstClockTime * timestamp);
static guint gst_replace_delay (GstAudioSrc * src);
static void gst_replace_reset (GstAudioSrc * src);
% declare-class
  GstAudioSrcClass *audio_src_class = GST_AUDIO_SRC_CLASS (klass);
% set-methods
  audio_src_class->open = GST_DEBUG_FUNCPTR (gst_replace_open);
  audio_src_class->prepare = GST_DEBUG_FUNCPTR (gst_replace_prepare);
  audio_src_class->unprepare = GST_DEBUG_FUNCPTR (gst_replace_unprepare);
  audio_src_class->close = GST_DEBUG_FUNCPTR (gst_replace_close);
  audio_src_class->read = GST_DEBUG_FUNCPTR (gst_replace_read);
  audio_src_class->delay = GST_DEBUG_FUNCPTR (gst_replace_delay);
  audio_src_class->reset = GST_DEBUG_FUNCPTR (gst_replace_reset);
% methods
/* open the device with given specs */
static gboolean
gst_replace_open (GstAudioSrc * src)
{
  GstReplace *replace = GST_REPLACE (src);

  GST_DEBUG_OBJECT (replace, "open");

  return TRUE;
}

/* prepare resources and state to operate with the given specs */
static gboolean
gst_replace_prepare (GstAudioSrc * src, GstAudioRingBufferSpec * spec)
{
  GstReplace *replace = GST_REPLACE (src);

  GST_DEBUG_OBJECT (replace, "prepare");

  return TRUE;
}

/* undo anything that was done in prepare() */
static gboolean
gst_replace_unprepare (GstAudioSrc * src)
{
  GstReplace *replace = GST_REPLACE (src);

  GST_DEBUG_OBJECT (replace, "unprepare");

  return TRUE;
}

/* close the device */
static gboolean
gst_replace_close (GstAudioSrc * src)
{
  GstReplace *replace = GST_REPLACE (src);

  GST_DEBUG_OBJECT (replace, "close");

  return TRUE;
}

/* read samples from the device */
static guint
gst_replace_read (GstAudioSrc * src, gpointer data, guint length,
    GstClockTime * timestamp)
{
  GstReplace *replace = GST_REPLACE (src);

  GST_DEBUG_OBJECT (replace, "read");

  return 0;
}

/* get number of samples queued in the device */
static guint
gst_replace_delay (GstAudioSrc * src)
{
  GstReplace *replace = GST_REPLACE (src);

  GST_DEBUG_OBJECT (replace, "delay");

  return 0;
}

/* reset the audio device, unblock from a write */
static void
gst_replace_reset (GstAudioSrc * src)
{
  GstReplace *replace = GST_REPLACE (src);

  GST_DEBUG_OBJECT (replace, "reset");

}
% end