C++ (Cpp) gst_dtmf_src_generate_silence 예제들

예제 #1

파일: gstdtmfsrc.c 프로젝트: PeterXu/gst-mobile

static GstBuffer *
gst_dtmf_src_create_next_tone_packet (GstDTMFSrc * dtmfsrc,
    GstDTMFSrcEvent * event)
{
  GstBuffer *buf = NULL;
  gboolean send_silence = FALSE;
  GstPad *srcpad = GST_BASE_SRC_PAD (dtmfsrc);

  GST_LOG_OBJECT (dtmfsrc, "Creating buffer for tone %s",
      DTMF_KEYS[event->event_number].event_name);

  /* create buffer to hold the tone */
  buf = gst_buffer_new ();

  if (event->packet_count * dtmfsrc->interval < MIN_INTER_DIGIT_INTERVAL) {
    send_silence = TRUE;
  }

  if (send_silence) {
    GST_LOG_OBJECT (dtmfsrc, "Generating silence");
    gst_dtmf_src_generate_silence (buf, dtmfsrc->interval,
        dtmfsrc->sample_rate);
  } else {
    GST_LOG_OBJECT (dtmfsrc, "Generating tone");
    gst_dtmf_src_generate_tone (event, DTMF_KEYS[event->event_number],
        dtmfsrc->interval, buf, dtmfsrc->sample_rate);
  }
  event->packet_count++;


  /* timestamp and duration of GstBuffer */
  GST_BUFFER_DURATION (buf) = dtmfsrc->interval * GST_MSECOND;
  GST_BUFFER_TIMESTAMP (buf) = dtmfsrc->timestamp;
  dtmfsrc->timestamp += GST_BUFFER_DURATION (buf);

  /* Set caps on the buffer before pushing it */
  gst_buffer_set_caps (buf, GST_PAD_CAPS (srcpad));

  return buf;
}

예제 #2

파일: gstdtmfsrc.c 프로젝트: ylatuya/gst-plugins-bad

static GstBuffer *
gst_dtmf_src_create_next_tone_packet (GstDTMFSrc * dtmfsrc,
    GstDTMFSrcEvent * event)
{
  GstBuffer *buf = NULL;
  gboolean send_silence = FALSE;

  GST_LOG_OBJECT (dtmfsrc, "Creating buffer for tone %s",
      DTMF_KEYS[event->event_number].event_name);

  if (event->packet_count * dtmfsrc->interval < MIN_INTER_DIGIT_INTERVAL) {
    send_silence = TRUE;
  }

  if (send_silence) {
    GST_LOG_OBJECT (dtmfsrc, "Generating silence");
    buf = gst_dtmf_src_generate_silence (dtmfsrc->interval,
        dtmfsrc->sample_rate);
  } else {
    GST_LOG_OBJECT (dtmfsrc, "Generating tone");
    buf = gst_dtmf_src_generate_tone (event, DTMF_KEYS[event->event_number],
        dtmfsrc->interval, dtmfsrc->sample_rate);
  }
  event->packet_count++;


  /* timestamp and duration of GstBuffer */
  GST_BUFFER_DURATION (buf) = dtmfsrc->interval * GST_MSECOND;
  GST_BUFFER_TIMESTAMP (buf) = dtmfsrc->timestamp;

  GST_LOG_OBJECT (dtmfsrc, "Creating new buffer with event %u duration "
      " gst: %" GST_TIME_FORMAT " at %" GST_TIME_FORMAT,
      event->event_number, GST_TIME_ARGS (GST_BUFFER_DURATION (buf)),
      GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));

  dtmfsrc->timestamp += GST_BUFFER_DURATION (buf);

  return buf;
}