C++ (Cpp) mmsx_get_asf_packet_len 예제들

예제 #1

파일: gstmms.c 프로젝트: zsx/ossbuild

static GstFlowReturn
gst_mms_create (GstPushSrc * psrc, GstBuffer ** buf)
{
  GstMMS *mmssrc;
  guint8 *data;
  guint blocksize;
  gint result;
  mms_off_t offset;

  *buf = NULL;

  mmssrc = GST_MMS (psrc);

  offset = mmsx_get_current_pos (mmssrc->connection);

  /* Check if a seek perhaps has wrecked our connection */
  if (offset == -1) {
    GST_DEBUG_OBJECT (mmssrc,
        "connection broken (probably an error during mmsx_seek_time during a convert query) returning FLOW_ERROR");
    return GST_FLOW_ERROR;
  }

  /* Choose blocksize best for optimum performance */
  if (offset == 0)
    blocksize = mmsx_get_asf_header_len (mmssrc->connection);
  else
    blocksize = mmsx_get_asf_packet_len (mmssrc->connection);

  *buf = gst_buffer_new_and_alloc (blocksize);

  data = GST_BUFFER_DATA (*buf);
  GST_BUFFER_SIZE (*buf) = 0;
  GST_LOG_OBJECT (mmssrc, "reading %d bytes", blocksize);
  result = mmsx_read (NULL, mmssrc->connection, (char *) data, blocksize);

  /* EOS? */
  if (result == 0)
    goto eos;

  GST_BUFFER_OFFSET (*buf) = offset;
  GST_BUFFER_SIZE (*buf) = result;

  GST_LOG_OBJECT (mmssrc, "Returning buffer with offset %" G_GINT64_FORMAT
      " and size %u", GST_BUFFER_OFFSET (*buf), GST_BUFFER_SIZE (*buf));

  gst_buffer_set_caps (*buf, GST_PAD_CAPS (GST_BASE_SRC_PAD (mmssrc)));

  return GST_FLOW_OK;

eos:
  {
    GST_DEBUG_OBJECT (mmssrc, "EOS");
    gst_buffer_unref (*buf);
    *buf = NULL;
    return GST_FLOW_UNEXPECTED;
  }
}

예제 #2

파일: gstmms.c 프로젝트: drothlis/gst-plugins-bad

static GstFlowReturn
gst_mms_create (GstPushSrc * psrc, GstBuffer ** buf)
{
  GstMMS *mmssrc = GST_MMS (psrc);
  guint8 *data;
  guint blocksize;
  gint result;
  mms_off_t offset;

  *buf = NULL;

  offset = mmsx_get_current_pos (mmssrc->connection);

  /* Check if a seek perhaps has wrecked our connection */
  if (offset == -1) {
    GST_ERROR_OBJECT (mmssrc,
        "connection broken (probably an error during mmsx_seek_time during a convert query) returning FLOW_ERROR");
    return GST_FLOW_ERROR;
  }

  /* Choose blocksize best for optimum performance */
  if (offset == 0)
    blocksize = mmsx_get_asf_header_len (mmssrc->connection);
  else
    blocksize = mmsx_get_asf_packet_len (mmssrc->connection);

  data = g_try_malloc (blocksize);
  if (!data) {
    GST_ERROR_OBJECT (mmssrc, "Failed to allocate %u bytes", blocksize);
    return GST_FLOW_ERROR;
  }

  GST_LOG_OBJECT (mmssrc, "reading %d bytes", blocksize);
  result = mmsx_read (NULL, mmssrc->connection, (char *) data, blocksize);
  /* EOS? */
  if (result == 0)
    goto eos;

  *buf = gst_buffer_new_wrapped (data, result);
  GST_BUFFER_OFFSET (*buf) = offset;

  GST_LOG_OBJECT (mmssrc, "Returning buffer with offset %" G_GINT64_FORMAT
      " and size %u", offset, result);

  return GST_FLOW_OK;

eos:
  {
    GST_DEBUG_OBJECT (mmssrc, "EOS");
    g_free (data);
    *buf = NULL;
    return GST_FLOW_EOS;
  }
}