コード例 #1
0
ファイル: gstrtpbuffer.c プロジェクト: zsx/ossbuild
/**
 * gst_rtp_buffer_allocate_data:
 * @buffer: a #GstBuffer
 * @payload_len: the length of the payload
 * @pad_len: the amount of padding
 * @csrc_count: the number of CSRC entries
 *
 * Allocate enough data in @buffer to hold an RTP packet with @csrc_count CSRCs,
 * a payload length of @payload_len and padding of @pad_len.
 * MALLOCDATA of @buffer will be overwritten and will not be freed. 
 * All other RTP header fields will be set to 0/FALSE.
 */
void
gst_rtp_buffer_allocate_data (GstBuffer * buffer, guint payload_len,
    guint8 pad_len, guint8 csrc_count)
{
  guint len;
  guint8 *data;

  g_return_if_fail (csrc_count <= 15);
  g_return_if_fail (GST_IS_BUFFER (buffer));

  len = GST_RTP_HEADER_LEN + csrc_count * sizeof (guint32)
      + payload_len + pad_len;

  data = g_malloc (len);
  GST_BUFFER_MALLOCDATA (buffer) = data;
  GST_BUFFER_DATA (buffer) = data;
  GST_BUFFER_SIZE (buffer) = len;

  /* fill in defaults */
  GST_RTP_HEADER_VERSION (data) = GST_RTP_VERSION;
  GST_RTP_HEADER_PADDING (data) = FALSE;
  GST_RTP_HEADER_EXTENSION (data) = FALSE;
  GST_RTP_HEADER_CSRC_COUNT (data) = csrc_count;
  memset (GST_RTP_HEADER_CSRC_LIST_OFFSET (data, 0), 0,
      csrc_count * sizeof (guint32));
  GST_RTP_HEADER_MARKER (data) = FALSE;
  GST_RTP_HEADER_PAYLOAD_TYPE (data) = 0;
  GST_RTP_HEADER_SEQ (data) = 0;
  GST_RTP_HEADER_TIMESTAMP (data) = 0;
  GST_RTP_HEADER_SSRC (data) = 0;
}
コード例 #2
0
EXPORT_C
#endif

void
gst_rtp_buffer_set_marker (GstBuffer * buffer, gboolean marker)
{
  GST_RTP_HEADER_MARKER (GST_BUFFER_DATA (buffer)) = marker;
}
コード例 #3
0
EXPORT_C
#endif

gboolean
gst_rtp_buffer_get_marker (GstBuffer * buffer)
{
  return GST_RTP_HEADER_MARKER (GST_BUFFER_DATA (buffer));
}
コード例 #4
0
EXPORT_C
#endif

void
gst_rtp_buffer_set_marker (GstBuffer * buffer, gboolean marker)
{
  g_return_if_fail (GST_IS_BUFFER (buffer));
  g_return_if_fail (GST_BUFFER_DATA (buffer) != NULL);

  GST_RTP_HEADER_MARKER (buffer) = marker;
}
コード例 #5
0
EXPORT_C
#endif

gboolean
gst_rtp_buffer_get_marker (GstBuffer * buffer)
{
  g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
  g_return_val_if_fail (GST_BUFFER_DATA (buffer) != NULL, FALSE);

  return GST_RTP_HEADER_MARKER (buffer);
}