C++ (Cpp) gst_speex_enc_get_latency Examples

Example #1

File: gstspeexenc.c Project: greg80303/gst-plugins-good

static gboolean
gst_speex_enc_set_format (GstAudioEncoder * benc, GstAudioInfo * info)
{
  GstSpeexEnc *enc;

  enc = GST_SPEEX_ENC (benc);

  enc->channels = GST_AUDIO_INFO_CHANNELS (info);
  enc->rate = GST_AUDIO_INFO_RATE (info);

  /* handle reconfigure */
  if (enc->state) {
    speex_encoder_destroy (enc->state);
    enc->state = NULL;
  }

  if (!gst_speex_enc_setup (enc))
    return FALSE;

  /* feedback to base class */
  gst_audio_encoder_set_latency (benc,
      gst_speex_enc_get_latency (enc), gst_speex_enc_get_latency (enc));
  gst_audio_encoder_set_lookahead (benc, enc->lookahead);

  if (enc->nframes == 0) {
    /* as many frames as available input allows */
    gst_audio_encoder_set_frame_samples_min (benc, enc->frame_size);
    gst_audio_encoder_set_frame_samples_max (benc, enc->frame_size);
    gst_audio_encoder_set_frame_max (benc, 0);
  } else {
    /* exactly as many frames as configured */
    gst_audio_encoder_set_frame_samples_min (benc,
        enc->frame_size * enc->nframes);
    gst_audio_encoder_set_frame_samples_max (benc,
        enc->frame_size * enc->nframes);
    gst_audio_encoder_set_frame_max (benc, 1);
  }

  return TRUE;
}

Example #2

File: gstspeexenc.c Project: zsx/ossbuild

static gboolean
gst_speex_enc_src_query (GstPad * pad, GstQuery * query)
{
  gboolean res = TRUE;
  GstSpeexEnc *enc;

  enc = GST_SPEEX_ENC (gst_pad_get_parent (pad));

  switch (GST_QUERY_TYPE (query)) {
    case GST_QUERY_POSITION:
    {
      GstFormat fmt, req_fmt;
      gint64 pos, val;

      gst_query_parse_position (query, &req_fmt, NULL);
      if ((res = gst_pad_query_peer_position (enc->sinkpad, &req_fmt, &val))) {
        gst_query_set_position (query, req_fmt, val);
        break;
      }

      fmt = GST_FORMAT_TIME;
      if (!(res = gst_pad_query_peer_position (enc->sinkpad, &fmt, &pos)))
        break;

      if ((res =
              gst_pad_query_peer_convert (enc->sinkpad, fmt, pos, &req_fmt,
                  &val)))
        gst_query_set_position (query, req_fmt, val);

      break;
    }
    case GST_QUERY_DURATION:
    {
      GstFormat fmt, req_fmt;
      gint64 dur, val;

      gst_query_parse_duration (query, &req_fmt, NULL);
      if ((res = gst_pad_query_peer_duration (enc->sinkpad, &req_fmt, &val))) {
        gst_query_set_duration (query, req_fmt, val);
        break;
      }

      fmt = GST_FORMAT_TIME;
      if (!(res = gst_pad_query_peer_duration (enc->sinkpad, &fmt, &dur)))
        break;

      if ((res =
              gst_pad_query_peer_convert (enc->sinkpad, fmt, dur, &req_fmt,
                  &val))) {
        gst_query_set_duration (query, req_fmt, val);
      }
      break;
    }
    case GST_QUERY_CONVERT:
    {
      GstFormat src_fmt, dest_fmt;
      gint64 src_val, dest_val;

      gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
      if (!(res = gst_speex_enc_convert_src (pad, src_fmt, src_val, &dest_fmt,
                  &dest_val)))
        goto error;
      gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
      break;
    }
    case GST_QUERY_LATENCY:
    {
      gboolean live;
      GstClockTime min_latency, max_latency;
      gint64 latency;

      if ((res = gst_pad_peer_query (enc->sinkpad, query))) {
        gst_query_parse_latency (query, &live, &min_latency, &max_latency);
        GST_LOG_OBJECT (pad, "Upstream latency: %" GST_PTR_FORMAT, query);

        latency = gst_speex_enc_get_latency (enc);

        /* add our latency */
        min_latency += latency;
        if (max_latency != -1)
          max_latency += latency;

        gst_query_set_latency (query, live, min_latency, max_latency);
        GST_LOG_OBJECT (pad, "Adjusted latency: %" GST_PTR_FORMAT, query);
      }
      break;
    }
    default:
      res = gst_pad_peer_query (enc->sinkpad, query);
      break;
  }

error:

  gst_object_unref (enc);

  return res;
}