text: /* GStreamer unit tests for the RTP support library
   *
   * Copyright (C) 2007 Tim-Philipp Müller <tim centricular net>
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public
   * License along with this library; if not, write to the
   * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
  
  #ifdef HAVE_CONFIG_H
  #include "config.h"
  #endif
  
  #include <gst/check/gstcheck.h>
  
  #include <gst/rtp/gstrtpbuffer.h>
  #include <gst/rtp/gstrtphdrext.h>
  #include <gst/rtp/gstrtcpbuffer.h>
  #include <string.h>
  
  #define RTP_HEADER_LEN 12
  
  GST_START_TEST (test_rtp_buffer)
  {
    GstBuffer *buf;
    GstMapInfo map;
    guint8 *data;
    gsize size;
    GstRTPBuffer rtp = { NULL, };
  
    /* check GstRTPHeader structure alignment and packing */
    buf = gst_rtp_buffer_new_allocate (16, 4, 0);
    fail_unless (buf != NULL);
    gst_buffer_map (buf, &map, GST_MAP_READWRITE);
    data = map.data;
    size = map.size;
    fail_unless_equals_int (size, RTP_HEADER_LEN + 16 + 4);
  
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
  
    /* check defaults */
    fail_unless_equals_int (gst_rtp_buffer_get_version (&rtp), 2);
    fail_unless (gst_rtp_buffer_get_padding (&rtp) == TRUE);
    fail_unless (gst_rtp_buffer_get_extension (&rtp) == FALSE);
    fail_unless_equals_int (gst_rtp_buffer_get_csrc_count (&rtp), 0);
    fail_unless (gst_rtp_buffer_get_marker (&rtp) == FALSE);
    fail_unless (gst_rtp_buffer_get_payload_type (&rtp) == 0);
    fail_unless_equals_int (GST_READ_UINT16_BE (data), 0xa000);
  
    /* check version in bitfield */
    gst_rtp_buffer_set_version (&rtp, 3);
    fail_unless_equals_int (gst_rtp_buffer_get_version (&rtp), 3);
    fail_unless_equals_int ((data[0] & 0xC0) >> 6, 3);
    gst_rtp_buffer_set_version (&rtp, 2);
    fail_unless_equals_int (gst_rtp_buffer_get_version (&rtp), 2);
    fail_unless_equals_int ((data[0] & 0xC0) >> 6, 2);
  
    /* check padding bit */
    gst_rtp_buffer_set_padding (&rtp, TRUE);
    fail_unless (gst_rtp_buffer_get_padding (&rtp) == TRUE);
    fail_unless_equals_int ((data[0] & 0x20) >> 5, 1);
    gst_rtp_buffer_set_padding (&rtp, FALSE);
    fail_unless (gst_rtp_buffer_get_padding (&rtp) == FALSE);
    fail_unless_equals_int ((data[0] & 0x20) >> 5, 0);
  
    /* check marker bit */
    gst_rtp_buffer_set_marker (&rtp, TRUE);
    fail_unless (gst_rtp_buffer_get_marker (&rtp) == TRUE);
    fail_unless_equals_int ((data[1] & 0x80) >> 7, 1);
    gst_rtp_buffer_set_marker (&rtp, FALSE);
    fail_unless (gst_rtp_buffer_get_marker (&rtp) == FALSE);
    fail_unless_equals_int ((data[1] & 0x80) >> 7, 0);
  
    /* check sequence offset */
    gst_rtp_buffer_set_seq (&rtp, 0xF2C9);
    fail_unless_equals_int (gst_rtp_buffer_get_seq (&rtp), 0xF2C9);
    fail_unless_equals_int (GST_READ_UINT16_BE (data + 2), 0xF2C9);
    gst_rtp_buffer_set_seq (&rtp, 0);
    fail_unless_equals_int (gst_rtp_buffer_get_seq (&rtp), 0);
    fail_unless_equals_int (GST_READ_UINT16_BE (data + 2), 0);
  
    /* check timestamp offset */
    gst_rtp_buffer_set_timestamp (&rtp, 432191);
    fail_unless_equals_int (GST_READ_UINT32_BE (data + 4), 432191);
    fail_unless_equals_int (gst_rtp_buffer_get_timestamp (&rtp), 432191);
    gst_rtp_buffer_set_timestamp (&rtp, 0);
    fail_unless_equals_int (gst_rtp_buffer_get_timestamp (&rtp), 0);
    fail_unless_equals_int (GST_READ_UINT32_BE (data + 4), 0);
  
    /* check ssrc offset */
    gst_rtp_buffer_set_ssrc (&rtp, 0xf04043C2);
    fail_unless_equals_int (gst_rtp_buffer_get_ssrc (&rtp), (gint) 0xf04043c2);
    fail_unless_equals_int (GST_READ_UINT32_BE (data + 4 + 4), (gint) 0xf04043c2);
    gst_rtp_buffer_set_ssrc (&rtp, 0);
    fail_unless_equals_int (gst_rtp_buffer_get_ssrc (&rtp), 0);
    fail_unless_equals_int (GST_READ_UINT32_BE (data + 4 + 4), 0);
  
    /* check csrc bits */
    fail_unless_equals_int (gst_rtp_buffer_get_csrc_count (&rtp), 0);
    ASSERT_CRITICAL (gst_rtp_buffer_get_csrc (&rtp, 0));
    fail_unless_equals_int (data[0] & 0xf, 0);
  
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unmap (buf, &map);
    gst_buffer_unref (buf);
  
    /* and again, this time with CSRCs */
    buf = gst_rtp_buffer_new_allocate (16, 4, 3);
    fail_unless (buf != NULL);
    gst_buffer_map (buf, &map, GST_MAP_READWRITE);
    data = map.data;
    size = map.size;
    fail_unless_equals_int (size, RTP_HEADER_LEN + 16 + 4 + 4 * 3);
  
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
  
    fail_unless_equals_int (gst_rtp_buffer_get_csrc_count (&rtp), 3);
    ASSERT_CRITICAL (gst_rtp_buffer_get_csrc (&rtp, 3));
    fail_unless_equals_int (data[0] & 0xf, 3);
    fail_unless_equals_int (gst_rtp_buffer_get_csrc (&rtp, 0), 0);
    fail_unless_equals_int (gst_rtp_buffer_get_csrc (&rtp, 1), 0);
    fail_unless_equals_int (gst_rtp_buffer_get_csrc (&rtp, 2), 0);
    fail_unless_equals_int (gst_rtp_buffer_get_header_len (&rtp),
        RTP_HEADER_LEN + 4 * 3);
    fail_unless_equals_int (gst_rtp_buffer_get_payload_len (&rtp), 16);
  
    data += RTP_HEADER_LEN;       /* skip the other header stuff */
    gst_rtp_buffer_set_csrc (&rtp, 0, 0xf7c0);
    fail_unless_equals_int (GST_READ_UINT32_BE (data + 0 * 4), 0xf7c0);
    gst_rtp_buffer_set_csrc (&rtp, 1, 0xf7c1);
    fail_unless_equals_int (GST_READ_UINT32_BE (data + 1 * 4), 0xf7c1);
    gst_rtp_buffer_set_csrc (&rtp, 2, 0xf7c2);
    fail_unless_equals_int (GST_READ_UINT32_BE (data + 2 * 4), 0xf7c2);
    ASSERT_CRITICAL (gst_rtp_buffer_set_csrc (&rtp, 3, 0xf123));
  
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unmap (buf, &map);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtp_buffer_validate_corrupt)
  {
    GstBuffer *buf;
    guint8 corrupt_rtp_packet[58] = {
      0x90, 0x7a, 0xbf, 0x28, 0x3a, 0x8a, 0x0a, 0xf4, 0x69, 0x6b, 0x76, 0xc0,
      0x21, 0xe0, 0xe0, 0x60, 0x81, 0x10, 0x84, 0x30, 0x21, 0x52, 0x06, 0xc2,
      0xb8, 0x30, 0x10, 0x4c, 0x08, 0x62, 0x67, 0xc2, 0x6e, 0x1a, 0x53, 0x3f,
      0xaf, 0xd6, 0x1b, 0x29, 0x40, 0xe0, 0xa5, 0x83, 0x01, 0x4b, 0x04, 0x02,
      0xb0, 0x97, 0x63, 0x08, 0x10, 0x4b, 0x43, 0x85, 0x37, 0x2c
    };
    GstRTPBuffer rtp = GST_RTP_BUFFER_INIT;
  
    buf = gst_buffer_new_and_alloc (sizeof (corrupt_rtp_packet));
    gst_buffer_fill (buf, 0, corrupt_rtp_packet, sizeof (corrupt_rtp_packet));
    fail_if (gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp));
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtp_buffer_validate_padding)
  {
    GstBuffer *buf;
    guint8 packet_with_padding[] = {
      0xa0, 0x60, 0x6c, 0x49, 0x58, 0xab, 0xaa, 0x65, 0x65, 0x2e, 0xaf, 0xce,
      0x68, 0xce, 0x3c, 0x80, 0x00, 0x00, 0x00, 0x04
    };
    GstRTPBuffer rtp = GST_RTP_BUFFER_INIT;
  
    buf = gst_buffer_new_and_alloc (sizeof (packet_with_padding));
    gst_buffer_fill (buf, 0, packet_with_padding, sizeof (packet_with_padding));
    fail_unless (gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp));
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  
    /* Set the padding to something invalid */
    buf = gst_buffer_new_and_alloc (sizeof (packet_with_padding));
    gst_buffer_fill (buf, 0, packet_with_padding, sizeof (packet_with_padding));
    gst_buffer_memset (buf, gst_buffer_get_size (buf) - 1, 0xff, 1);
    fail_if (gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp));
  
    memset (&rtp, 0, sizeof (rtp));
    fail_unless (gst_rtp_buffer_map (buf, GST_MAP_READ |
            GST_RTP_BUFFER_MAP_FLAG_SKIP_PADDING, &rtp));
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  #if 0
  GST_START_TEST (test_rtp_buffer_list)
  {
    GstBuffer *rtp_header;
    GstBuffer *rtp_payload;
    GstBufferList *list = NULL;
    GstBufferListIterator *it;
    guint i;
  
    list = gst_buffer_list_new ();
    it = gst_buffer_list_iterate (list);
  
    /* Creating a list of two RTP packages */
  
    /* Create first group to hold the rtp header and the payload */
    gst_buffer_list_iterator_add_group (it);
    rtp_header = gst_rtp_buffer_new_allocate (0, 0, 0);
    gst_buffer_list_iterator_add (it, rtp_header);
    rtp_payload = gst_buffer_new_and_alloc (42);
    gst_buffer_list_iterator_add (it, rtp_payload);
  
    /* Create second group to hold an rtp header and a payload */
    gst_buffer_list_iterator_add_group (it);
    rtp_header = gst_rtp_buffer_new_allocate (0, 0, 0);
    gst_buffer_list_iterator_add (it, rtp_header);
    rtp_payload = gst_buffer_new_and_alloc (42);
    gst_buffer_list_iterator_add (it, rtp_payload);
  
    gst_buffer_list_iterator_free (it);
  
    /* Test SEQ number */
    i = gst_rtp_buffer_list_set_seq (list, 1024);
    fail_if (1026 != i);
    fail_if (!gst_rtp_buffer_list_validate (list));
  
    /* Timestamp */
    gst_rtp_buffer_list_set_timestamp (list, 432191);
    fail_unless_equals_int (gst_rtp_buffer_list_get_timestamp (list), 432191);
  
    /* SSRC */
    gst_rtp_buffer_list_set_ssrc (list, 0xf04043C2);
    fail_unless_equals_int (gst_rtp_buffer_list_get_ssrc (list),
        (gint) 0xf04043c2);
  
    /* Payload type */
    gst_rtp_buffer_list_set_payload_type (list, 127);
    fail_unless_equals_int (gst_rtp_buffer_list_get_payload_type (list), 127);
  
    gst_buffer_list_unref (list);
  }
  
  GST_END_TEST;
  #endif
  
  GST_START_TEST (test_rtp_buffer_set_extension_data)
  {
    GstBuffer *buf;
    guint8 *data;
    guint16 bits;
    guint size;
    guint8 misc_data[4] = { 1, 2, 3, 4 };
    gpointer pointer;
    guint8 appbits;
    GstRTPBuffer rtp = { NULL, };
  
    /* check GstRTPHeader structure alignment and packing */
    buf = gst_rtp_buffer_new_allocate (4, 0, 0);
  
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
  
    /* should be possible to set the extension data */
    fail_unless (gst_rtp_buffer_set_extension_data (&rtp, 270, 4) == TRUE);
    fail_unless (gst_rtp_buffer_get_extension (&rtp) == TRUE);
    gst_rtp_buffer_get_extension_data (&rtp, &bits, &pointer, &size);
    fail_unless (bits == 270);
    fail_unless (size == 4);
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  
    buf = gst_rtp_buffer_new_allocate (20, 0, 0);
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
  
    fail_unless (gst_rtp_buffer_get_extension (&rtp) == FALSE);
    fail_unless (gst_rtp_buffer_set_extension_data (&rtp, 333, 2) == TRUE);
    fail_unless (gst_rtp_buffer_get_extension (&rtp) == TRUE);
    gst_rtp_buffer_get_extension_data (&rtp, &bits, &pointer, &size);
    fail_unless (bits == 333);
    fail_unless (size == 2);
  
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  
    /* Test header extensions with a one byte header */
    buf = gst_rtp_buffer_new_allocate (20, 0, 0);
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
  
    fail_unless (gst_rtp_buffer_get_extension (&rtp) == FALSE);
  
    fail_unless (gst_rtp_buffer_add_extension_onebyte_header (&rtp, 5,
            misc_data, 2) == TRUE);
    fail_unless (gst_rtp_buffer_get_extension_data (&rtp, &bits, &pointer,
            &size));
    fail_unless (bits == 0xBEDE);
    fail_unless (size == 1);
    data = (guint8 *) pointer;
    fail_unless (data[0] == ((5 << 4) | 1));
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 2,
            1, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 5,
            1, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
  
    fail_unless (gst_rtp_buffer_add_extension_onebyte_header (&rtp, 5,
            misc_data, 4) == TRUE);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 5,
            1, &pointer, &size) == TRUE);
    fail_unless (size == 4);
    fail_unless (memcmp (pointer, misc_data, 4) == 0);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 5,
            2, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 2,
            1, &pointer, &size) == FALSE);
  
    fail_unless (gst_rtp_buffer_add_extension_onebyte_header (&rtp, 6,
            misc_data, 2) == TRUE);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 5,
            1, &pointer, &size) == TRUE);
    fail_unless (size == 4);
    fail_unless (memcmp (pointer, misc_data, 4) == 0);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 5,
            3, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 2,
            1, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 6,
            2, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_onebyte_header (&rtp, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
  
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  
    /* Test header extensions with a two bytes header */
    buf = gst_rtp_buffer_new_allocate (20, 0, 0);
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
  
    fail_unless (gst_rtp_buffer_get_extension (&rtp) == FALSE);
  
    fail_unless (gst_rtp_buffer_add_extension_twobytes_header (&rtp, 0, 5,
            misc_data, 2) == TRUE);
    fail_unless (gst_rtp_buffer_get_extension_data (&rtp, &bits, &pointer,
            &size));
    fail_unless (bits == 0x100 << 4);
    fail_unless (size == 1);
    data = (guint8 *) pointer;
    fail_unless (data[0] == 5);
    fail_unless (data[1] == 2);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 2,
            0, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 5,
            1, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
  
    fail_unless (gst_rtp_buffer_add_extension_twobytes_header (&rtp, 0, 5,
            misc_data, 4) == TRUE);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 5,
            1, &pointer, &size) == TRUE);
    fail_unless (size == 4);
    fail_unless (memcmp (pointer, misc_data, 4) == 0);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 5,
            2, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 2,
            0, &pointer, &size) == FALSE);
  
    fail_unless (gst_rtp_buffer_add_extension_twobytes_header (&rtp, 0, 6,
            misc_data, 2) == TRUE);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 5,
            1, &pointer, &size) == TRUE);
    fail_unless (size == 4);
    fail_unless (memcmp (pointer, misc_data, 4) == 0);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 5,
            2, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 2,
            0, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 6,
            1, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_get_extension_twobytes_header (&rtp, &appbits, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
  
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  #if 0
  GST_START_TEST (test_rtp_buffer_list_set_extension)
  {
    GstBufferList *list;
    GstBuffer *buf;
    guint8 *data;
    guint16 bits;
    guint size;
    guint8 misc_data[4] = { 1, 2, 3, 4 };
    gpointer pointer;
    guint8 appbits;
    GstBufferListIterator *it;
  
    buf = gst_rtp_buffer_new_allocate (20, 0, 0);
    list = gst_rtp_buffer_list_from_buffer (buf);
    gst_buffer_unref (buf);
  
    it = gst_buffer_list_iterate (list);
    fail_unless (gst_buffer_list_iterator_next_group (it));
    buf = gst_buffer_list_iterator_next (it);
    fail_unless (buf != NULL);
    fail_unless (GST_BUFFER_SIZE (buf) == 12);
    buf = gst_buffer_list_iterator_next (it);
    fail_unless (buf != NULL);
    fail_unless (GST_BUFFER_SIZE (buf) == 20);
    gst_buffer_list_iterator_free (it);
  
    /* Test header extensions with a one byte header */
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 2,
            1, &pointer, &size) == FALSE);
  
    it = gst_buffer_list_iterate (list);
    fail_unless (gst_buffer_list_iterator_next_group (it));
    fail_unless (gst_buffer_list_iterator_next (it) != NULL);
    fail_unless (gst_rtp_buffer_list_add_extension_onebyte_header (it, 5,
            misc_data, 2) == TRUE);
    gst_buffer_list_iterator_free (it);
    it = gst_buffer_list_iterate (list);
    fail_unless (gst_buffer_list_iterator_next_group (it));
    buf = gst_buffer_list_iterator_next (it);
    fail_unless (gst_rtp_buffer_get_extension_data (buf, &bits, &pointer, &size));
    fail_unless (bits == 0xBEDE);
    fail_unless (size == 1);
    data = (guint8 *) pointer;
    fail_unless (data[0] == ((5 << 4) | 1));
    gst_buffer_list_iterator_free (it);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 2,
            0, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 5,
            1, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
  
    it = gst_buffer_list_iterate (list);
    fail_unless (gst_buffer_list_iterator_next_group (it));
    fail_unless (gst_buffer_list_iterator_next (it) != NULL);
    fail_unless (gst_rtp_buffer_list_add_extension_onebyte_header (it, 5,
            misc_data, 4) == TRUE);
    gst_buffer_list_iterator_free (it);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 5,
            1, &pointer, &size) == TRUE);
    fail_unless (size == 4);
    fail_unless (memcmp (pointer, misc_data, 4) == 0);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 5,
            2, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 2,
            0, &pointer, &size) == FALSE);
  
    it = gst_buffer_list_iterate (list);
    fail_unless (gst_buffer_list_iterator_next_group (it));
    fail_unless (gst_buffer_list_iterator_next (it) != NULL);
    fail_unless (gst_rtp_buffer_list_add_extension_onebyte_header (it, 6,
            misc_data, 2) == TRUE);
    gst_buffer_list_iterator_free (it);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 5,
            1, &pointer, &size) == TRUE);
    fail_unless (size == 4);
    fail_unless (memcmp (pointer, misc_data, 4) == 0);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 5,
            2, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 2,
            0, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 6,
            1, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_onebyte_header (list, 0, 5,
            0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
    gst_buffer_list_unref (list);
  
  
    /* Test header extensions with a two bytes header */
    buf = gst_rtp_buffer_new_allocate (20, 0, 0);
    list = gst_rtp_buffer_list_from_buffer (buf);
    gst_buffer_unref (buf);
  
    it = gst_buffer_list_iterate (list);
    fail_unless (gst_buffer_list_iterator_next_group (it));
    fail_unless (gst_buffer_list_iterator_next (it) != NULL);
    fail_unless (gst_rtp_buffer_list_add_extension_twobytes_header (it, 0, 5,
            misc_data, 2) == TRUE);
    gst_buffer_list_iterator_free (it);
  
    it = gst_buffer_list_iterate (list);
    fail_unless (gst_buffer_list_iterator_next_group (it));
    buf = gst_buffer_list_iterator_next (it);
    fail_unless (gst_rtp_buffer_get_extension_data (buf, &bits, &pointer, &size));
    fail_unless (bits == 0x100 << 4);
    fail_unless (size == 1);
    data = (guint8 *) pointer;
    fail_unless (data[0] == 5);
    fail_unless (data[1] == 2);
    gst_buffer_list_iterator_free (it);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 2, 0, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 5, 1, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 5, 0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
  
    it = gst_buffer_list_iterate (list);
    fail_unless (gst_buffer_list_iterator_next_group (it));
    fail_unless (gst_buffer_list_iterator_next (it) != NULL);
    fail_unless (gst_rtp_buffer_list_add_extension_twobytes_header (it, 0, 5,
            misc_data, 4) == TRUE);
    gst_buffer_list_iterator_free (it);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 5, 0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 5, 1, &pointer, &size) == TRUE);
    fail_unless (size == 4);
    fail_unless (memcmp (pointer, misc_data, 4) == 0);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 5, 2, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 2, 0, &pointer, &size) == FALSE);
  
    it = gst_buffer_list_iterate (list);
    fail_unless (gst_buffer_list_iterator_next_group (it));
    fail_unless (gst_buffer_list_iterator_next (it) != NULL);
    fail_unless (gst_rtp_buffer_list_add_extension_twobytes_header (it, 0, 6,
            misc_data, 2) == TRUE);
    gst_buffer_list_iterator_free (it);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 5, 0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 5, 1, &pointer, &size) == TRUE);
    fail_unless (size == 4);
    fail_unless (memcmp (pointer, misc_data, 4) == 0);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 5, 2, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 2, 0, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 6, 1, &pointer, &size) == FALSE);
    fail_unless (gst_rtp_buffer_list_get_extension_twobytes_header (list, 0,
            &appbits, 5, 0, &pointer, &size) == TRUE);
    fail_unless (size == 2);
    fail_unless (memcmp (pointer, misc_data, 2) == 0);
  
    gst_buffer_list_unref (list);
  }
  
  GST_END_TEST;
  #endif
  
  GST_START_TEST (test_rtp_seqnum_compare)
  {
  #define ASSERT_COMP(a,b,c) fail_unless (gst_rtp_buffer_compare_seqnum ((guint16)a,(guint16)b) == c);
    ASSERT_COMP (0xfffe, 0xfffd, -1);
    ASSERT_COMP (0xffff, 0xfffe, -1);
    ASSERT_COMP (0x0000, 0xffff, -1);
    ASSERT_COMP (0x0001, 0x0000, -1);
    ASSERT_COMP (0x0002, 0x0001, -1);
  
    ASSERT_COMP (0xffff, 0xfffd, -2);
    ASSERT_COMP (0x0000, 0xfffd, -3);
    ASSERT_COMP (0x0001, 0xfffd, -4);
    ASSERT_COMP (0x0002, 0xfffd, -5);
  
    ASSERT_COMP (0x7ffe, 0x7ffd, -1);
    ASSERT_COMP (0x7fff, 0x7ffe, -1);
    ASSERT_COMP (0x8000, 0x7fff, -1);
    ASSERT_COMP (0x8001, 0x8000, -1);
    ASSERT_COMP (0x8002, 0x8001, -1);
  
    ASSERT_COMP (0x7fff, 0x7ffd, -2);
    ASSERT_COMP (0x8000, 0x7ffd, -3);
    ASSERT_COMP (0x8001, 0x7ffd, -4);
    ASSERT_COMP (0x8002, 0x7ffd, -5);
  
    ASSERT_COMP (0x7ffd, 0xffff, -0x7ffe);
    ASSERT_COMP (0x7ffe, 0x0000, -0x7ffe);
    ASSERT_COMP (0x7fff, 0x0001, -0x7ffe);
    ASSERT_COMP (0x7fff, 0x0000, -0x7fff);
    ASSERT_COMP (0x8000, 0x0001, -0x7fff);
    ASSERT_COMP (0x8001, 0x0002, -0x7fff);
  
    ASSERT_COMP (0xfffd, 0x7ffe, -0x7fff);
    ASSERT_COMP (0xfffe, 0x7fff, -0x7fff);
    ASSERT_COMP (0xffff, 0x8000, -0x7fff);
    ASSERT_COMP (0x0000, 0x8001, -0x7fff);
    ASSERT_COMP (0x0001, 0x8002, -0x7fff);
  
    ASSERT_COMP (0xfffe, 0x7ffe, -0x8000);
    ASSERT_COMP (0xffff, 0x7fff, -0x8000);
    ASSERT_COMP (0x0000, 0x8000, -0x8000);
    ASSERT_COMP (0x0001, 0x8001, -0x8000);
  
    ASSERT_COMP (0x7ffe, 0xfffe, -0x8000);
    ASSERT_COMP (0x7fff, 0xffff, -0x8000);
    ASSERT_COMP (0x8000, 0x0000, -0x8000);
    ASSERT_COMP (0x8001, 0x0001, -0x8000);
  
    ASSERT_COMP (0x0001, 0x0002, 1);
    ASSERT_COMP (0x0000, 0x0001, 1);
    ASSERT_COMP (0xffff, 0x0000, 1);
    ASSERT_COMP (0xfffe, 0xffff, 1);
    ASSERT_COMP (0xfffd, 0xfffe, 1);
  
    ASSERT_COMP (0x0000, 0x0002, 2);
    ASSERT_COMP (0xffff, 0x0002, 3);
    ASSERT_COMP (0xfffe, 0x0002, 4);
    ASSERT_COMP (0xfffd, 0x0002, 5);
  
    ASSERT_COMP (0x8001, 0x8002, 1);
    ASSERT_COMP (0x8000, 0x8001, 1);
    ASSERT_COMP (0x7fff, 0x8000, 1);
    ASSERT_COMP (0x7ffe, 0x7fff, 1);
    ASSERT_COMP (0x7ffd, 0x7ffe, 1);
  
    ASSERT_COMP (0x8000, 0x8002, 2);
    ASSERT_COMP (0x7fff, 0x8002, 3);
    ASSERT_COMP (0x7ffe, 0x8002, 4);
    ASSERT_COMP (0x7ffd, 0x8002, 5);
  
    ASSERT_COMP (0xfffe, 0x7ffd, 0x7fff);
    ASSERT_COMP (0xffff, 0x7ffe, 0x7fff);
    ASSERT_COMP (0x0000, 0x7fff, 0x7fff);
    ASSERT_COMP (0x0001, 0x8000, 0x7fff);
    ASSERT_COMP (0x0002, 0x8001, 0x7fff);
  
    ASSERT_COMP (0x7ffe, 0xfffd, 0x7fff);
    ASSERT_COMP (0x7fff, 0xfffe, 0x7fff);
    ASSERT_COMP (0x8000, 0xffff, 0x7fff);
    ASSERT_COMP (0x8001, 0x0000, 0x7fff);
    ASSERT_COMP (0x8002, 0x0001, 0x7fff);
  #undef ASSERT_COMP
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer)
  {
    GstBuffer *buf;
    GstRTCPPacket packet;
    GstRTCPBuffer rtcp = { NULL, };
    gsize offset;
    gsize maxsize;
  
    buf = gst_rtcp_buffer_new (1400);
    fail_unless (buf != NULL);
    fail_unless_equals_int (gst_buffer_get_sizes (buf, &offset, &maxsize), 0);
    fail_unless_equals_int (offset, 0);
    fail_unless_equals_int (maxsize, 1400);
  
    gst_rtcp_buffer_map (buf, GST_MAP_READWRITE, &rtcp);
  
    fail_unless (gst_rtcp_buffer_validate (buf) == FALSE);
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet) == FALSE);
    fail_unless (gst_rtcp_buffer_get_packet_count (&rtcp) == 0);
  
    /* add an SR packet */
    fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_SR,
            &packet) == TRUE);
  
    fail_unless (gst_rtcp_packet_get_padding (&packet) == 0);
    fail_unless (gst_rtcp_packet_get_count (&packet) == 0);
    fail_unless (gst_rtcp_packet_get_type (&packet) == GST_RTCP_TYPE_SR);
    fail_unless (gst_rtcp_packet_get_length (&packet) == 6);
  
    gst_rtcp_packet_sr_set_sender_info (&packet, 0x44556677,
        G_GUINT64_CONSTANT (1), 0x11111111, 101, 123456);
    {
      guint32 ssrc;
      guint64 ntptime;
      guint32 rtptime;
      guint32 packet_count;
      guint32 octet_count;
  
      gst_rtcp_packet_sr_get_sender_info (&packet, &ssrc, &ntptime, &rtptime,
          &packet_count, &octet_count);
  
      fail_unless (ssrc == 0x44556677);
      fail_unless (ntptime == G_GUINT64_CONSTANT (1));
      fail_unless (rtptime == 0x11111111);
      fail_unless (packet_count == 101);
      fail_unless (octet_count == 123456);
    }
  
    /* go to first packet, this should be the packet we just added */
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet) == TRUE);
  
    fail_unless (gst_rtcp_packet_get_padding (&packet) == 0);
    fail_unless (gst_rtcp_packet_get_count (&packet) == 0);
    fail_unless (gst_rtcp_packet_get_type (&packet) == GST_RTCP_TYPE_SR);
    fail_unless (gst_rtcp_packet_get_length (&packet) == 6);
  
    fail_unless (gst_rtcp_packet_move_to_next (&packet) == FALSE);
  
    /* add some SDES */
    fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_SDES,
            &packet) == TRUE);
    fail_unless (gst_rtcp_packet_sdes_add_item (&packet, 0xff658743) == TRUE);
    fail_unless (gst_rtcp_packet_sdes_add_entry (&packet, GST_RTCP_SDES_CNAME,
            sizeof ("test@foo.bar"), (guint8 *) "test@foo.bar") == TRUE);
  
    /* add some BYE */
    fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_BYE,
            &packet) == TRUE);
    fail_unless (gst_rtcp_packet_bye_add_ssrc (&packet, 0x5613212f) == TRUE);
    fail_unless (gst_rtcp_packet_bye_add_ssrc (&packet, 0x00112233) == TRUE);
    fail_unless (gst_rtcp_packet_bye_get_ssrc_count (&packet) == 2);
  
    fail_unless (gst_rtcp_packet_get_padding (&packet) == 0);
    fail_unless (gst_rtcp_packet_get_count (&packet) == 2);
    fail_unless (gst_rtcp_packet_get_type (&packet) == GST_RTCP_TYPE_BYE);
    fail_unless (gst_rtcp_packet_get_length (&packet) == 2);
  
    /* move to SDES */
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet) == TRUE);
    fail_unless (gst_rtcp_packet_move_to_next (&packet) == TRUE);
  
    fail_unless (gst_rtcp_packet_get_padding (&packet) == 0);
    fail_unless (gst_rtcp_packet_get_count (&packet) == 1);
    fail_unless (gst_rtcp_packet_get_type (&packet) == GST_RTCP_TYPE_SDES);
    fail_unless (gst_rtcp_packet_get_length (&packet) == 5);
  
    /* remove the SDES */
    fail_unless (gst_rtcp_packet_remove (&packet) == TRUE);
  
    /* we are now at the BYE packet */
    fail_unless (gst_rtcp_packet_get_padding (&packet) == 0);
    fail_unless (gst_rtcp_packet_get_count (&packet) == 2);
    fail_unless (gst_rtcp_packet_get_type (&packet) == GST_RTCP_TYPE_BYE);
    fail_unless (gst_rtcp_packet_get_length (&packet) == 2);
  
    /* close and validate */
    gst_rtcp_buffer_unmap (&rtcp);
    fail_unless (gst_rtcp_buffer_validate (buf) == TRUE);
    fail_unless (gst_rtcp_buffer_validate_reduced (buf) == TRUE);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_reduced_buffer)
  {
    GstBuffer *buf;
    GstRTCPPacket packet;
    GstRTCPBuffer rtcp = { NULL, };
    gsize offset;
    gsize maxsize;
  
    buf = gst_rtcp_buffer_new (1400);
    fail_unless (buf != NULL);
    fail_unless_equals_int (gst_buffer_get_sizes (buf, &offset, &maxsize), 0);
    fail_unless_equals_int (offset, 0);
    fail_unless_equals_int (maxsize, 1400);
  
    gst_rtcp_buffer_map (buf, GST_MAP_READWRITE, &rtcp);
  
    fail_unless (gst_rtcp_buffer_validate (buf) == FALSE);
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet) == FALSE);
    fail_unless (gst_rtcp_buffer_get_packet_count (&rtcp) == 0);
  
    /* add an SR packet */
    fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_PSFB,
            &packet) == TRUE);
  
    /* close and validate */
    gst_rtcp_buffer_unmap (&rtcp);
    fail_unless (gst_rtcp_buffer_validate (buf) == FALSE);
    fail_unless (gst_rtcp_buffer_validate_reduced (buf) == TRUE);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  
  GST_START_TEST (test_rtcp_validate_with_padding)
  {
    /* Compound packet with padding in the last packet. Padding is included in
     * the length of the last packet. */
    guint8 rtcp_pkt[] = {
      0x80, 0xC9, 0x00, 0x07,     /* Type RR, length = 7 */
      0x97, 0x6d, 0x21, 0x6a,
      0x4d, 0x16, 0xaf, 0x14,
      0x10, 0x1f, 0xd9, 0x91,
      0x0f, 0xb7, 0x50, 0x88,
      0x3b, 0x79, 0x31, 0x50,
      0xbe, 0x19, 0x12, 0xa8,
      0xbb, 0xce, 0x9e, 0x3e,
      0xA0, 0xCA, 0x00, 0x0A,     /* P=1, Type SDES, length = 10 (includes padding) */
      0x97, 0x6d, 0x21, 0x6a,
      0x01, 0x0F, 0x00, 0x00,     /* Type 1 (CNAME), length 15 */
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x02, 0x09, 0x00,     /* Type 2 (NAME), length 9 */
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,     /* Type 0 (no length, 2 unused bytes) */
      0x00, 0x00, 0x00, 0x04      /* RTCP padding */
    };
  
    fail_unless (gst_rtcp_buffer_validate_data (rtcp_pkt, sizeof (rtcp_pkt)));
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_validate_with_padding_wrong_padlength)
  {
    /* Compound packet with padding in the last packet. Padding is included in
     * the length of the last packet. */
    guint8 rtcp_pkt[] = {
      0x80, 0xC9, 0x00, 0x07,     /* Type RR, length = 7 */
      0x97, 0x6d, 0x21, 0x6a,
      0x4d, 0x16, 0xaf, 0x14,
      0x10, 0x1f, 0xd9, 0x91,
      0x0f, 0xb7, 0x50, 0x88,
      0x3b, 0x79, 0x31, 0x50,
      0xbe, 0x19, 0x12, 0xa8,
      0xbb, 0xce, 0x9e, 0x3e,
      0xA0, 0xCA, 0x00, 0x0A,     /* P=1, Type SDES, length = 10 (includes padding) */
      0x97, 0x6d, 0x21, 0x6a,
      0x01, 0x0F, 0x00, 0x00,     /* Type 1 (CNAME), length 15 */
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x02, 0x09, 0x00,     /* Type 2 (NAME), length 9 */
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,     /* Type 0 (no length, 2 unused bytes) */
      0x00, 0x00, 0x00, 0x03      /* RTCP padding (wrong length) */
    };
  
    fail_if (gst_rtcp_buffer_validate_data (rtcp_pkt, sizeof (rtcp_pkt)));
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_validate_with_padding_excluded_from_length)
  {
    /* Compound packet with padding in the last packet. Padding is not included
     * in the length. */
    guint8 rtcp_pkt[] = {
      0x80, 0xC9, 0x00, 0x07,     /* Type RR, length = 7 */
      0x97, 0x6d, 0x21, 0x6a,
      0x4d, 0x16, 0xaf, 0x14,
      0x10, 0x1f, 0xd9, 0x91,
      0x0f, 0xb7, 0x50, 0x88,
      0x3b, 0x79, 0x31, 0x50,
      0xbe, 0x19, 0x12, 0xa8,
      0xbb, 0xce, 0x9e, 0x3e,
      0xA0, 0xCA, 0x00, 0x09,     /* P=1, Type SDES, length = 9 (excludes padding) */
      0x97, 0x6d, 0x21, 0x6a,
      0x01, 0x0F, 0x00, 0x00,     /* Type 1 (CNAME), length 15 */
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x02, 0x09, 0x00,     /* Type 2 (NAME), length 9 */
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,     /* Type 0 (no length, 2 unused bytes) */
      0x00, 0x00, 0x00, 0x04      /* RTCP padding */
    };
  
    fail_if (gst_rtcp_buffer_validate_data (rtcp_pkt, sizeof (rtcp_pkt)));
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_validate_with_padding_set_in_first_packet)
  {
    /* Compound packet with padding in the last packet but with the pad
       bit set on first packet */
    guint8 rtcp_pkt[] = {
      0xA0, 0xC9, 0x00, 0x07,     /* P=1, Type RR, length = 7 */
      0x97, 0x6d, 0x21, 0x6a,
      0x4d, 0x16, 0xaf, 0x14,
      0x10, 0x1f, 0xd9, 0x91,
      0x0f, 0xb7, 0x50, 0x88,
      0x3b, 0x79, 0x31, 0x50,
      0xbe, 0x19, 0x12, 0xa8,
      0xbb, 0xce, 0x9e, 0x3e,
      0x80, 0xCA, 0x00, 0x0a,     /* Type SDES, length = 10 (include padding) */
      0x97, 0x6d, 0x21, 0x6a,
      0x01, 0x0F, 0x00, 0x00,     /* Type 1 (CNAME), length 15 */
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x02, 0x09, 0x00,     /* Type 2 (NAME), length 9 */
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,
      0x00, 0x00, 0x00, 0x00,     /* Type 0 (no length, 2 unused bytes) */
      0x00, 0x00, 0x00, 0x04      /* RTCP padding */
    };
  
    fail_if (gst_rtcp_buffer_validate_data (rtcp_pkt, sizeof (rtcp_pkt)));
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_validate_reduced_without_padding)
  {
    /* Reduced size packet without padding */
    guint8 rtcp_pkt[] = {
      0x80, 0xcd, 0x00, 0x07,     /* Type FB, length = 8 */
      0x97, 0x6d, 0x21, 0x6a,
      0x4d, 0x16, 0xaf, 0x14,
      0x10, 0x1f, 0xd9, 0x91,
      0x0f, 0xb7, 0x50, 0x88,
      0x3b, 0x79, 0x31, 0x50,
      0xbe, 0x19, 0x12, 0xa8,
      0xbb, 0xce, 0x9e, 0x3e,
    };
  
    fail_unless (gst_rtcp_buffer_validate_data_reduced (rtcp_pkt,
            sizeof (rtcp_pkt)));
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_validate_reduced_with_padding)
  {
    /* Reduced size packet with padding. */
    guint8 rtcp_pkt[] = {
      0xA0, 0xcd, 0x00, 0x08,     /* P=1, Type FB, length = 8 */
      0x97, 0x6d, 0x21, 0x6a,
      0x4d, 0x16, 0xaf, 0x14,
      0x10, 0x1f, 0xd9, 0x91,
      0x0f, 0xb7, 0x50, 0x88,
      0x3b, 0x79, 0x31, 0x50,
      0xbe, 0x19, 0x12, 0xa8,
      0xbb, 0xce, 0x9e, 0x3e,
      0x00, 0x00, 0x00, 0x04      /* RTCP padding */
    };
  
    fail_if (gst_rtcp_buffer_validate_data_reduced (rtcp_pkt, sizeof (rtcp_pkt)));
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer_profile_specific_extension)
  {
    GstBuffer *buf;
    GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
    GstRTCPPacket packet;
    const guint8 pse[] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 };
    const guint8 pse2[] = { 0x01, 0x23, 0x45, 0x67 };
  
    fail_unless ((buf = gst_rtcp_buffer_new (1400)) != NULL);
    gst_rtcp_buffer_map (buf, GST_MAP_READWRITE, &rtcp);
  
    fail_unless (gst_rtcp_buffer_validate (buf) == FALSE);
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet) == FALSE);
    fail_unless (gst_rtcp_buffer_get_packet_count (&rtcp) == 0);
  
    /* add an SR packet with sender info */
    fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_SR, &packet));
    gst_rtcp_packet_sr_set_sender_info (&packet, 0x44556677,
        G_GUINT64_CONSTANT (1), 0x11111111, 101, 123456);
    fail_unless_equals_int (0,
        gst_rtcp_packet_get_profile_specific_ext_length (&packet));
    fail_unless_equals_int (6, gst_rtcp_packet_get_length (&packet));
  
    /* add profile-specific extension */
    fail_unless (gst_rtcp_packet_add_profile_specific_ext (&packet,
            pse, sizeof (pse)));
    {
      guint8 *data = NULL;
      guint len = 0;
  
      fail_unless_equals_int (8, gst_rtcp_packet_get_length (&packet));
      fail_unless_equals_int (sizeof (pse) / 4,
          gst_rtcp_packet_get_profile_specific_ext_length (&packet));
  
      /* gst_rtcp_packet_get_profile_specific_ext */
      fail_unless (gst_rtcp_packet_get_profile_specific_ext (&packet, &data,
              &len));
      fail_unless_equals_int (sizeof (pse), len);
      fail_unless (data != NULL);
      fail_unless_equals_int (0, memcmp (pse, data, sizeof (pse)));
  
      /* gst_rtcp_packet_copy_profile_specific_ext */
      fail_unless (gst_rtcp_packet_copy_profile_specific_ext (&packet, &data,
              &len));
      fail_unless_equals_int (sizeof (pse), len);
      fail_unless (data != NULL);
      fail_unless_equals_int (0, memcmp (pse, data, sizeof (pse)));
      g_free (data);
    }
  
    /* append more profile-specific extension */
    fail_unless (gst_rtcp_packet_add_profile_specific_ext (&packet,
            pse2, sizeof (pse2)));
    {
      guint8 *data = NULL;
      guint len = 0;
      guint concat_len;
      guint8 *concat_pse;
  
      /* Expect the second extension to be appended to the first */
      concat_len = sizeof (pse) + sizeof (pse2);
      concat_pse = g_malloc (concat_len);
      memcpy (concat_pse, pse, sizeof (pse));
      memcpy (concat_pse + sizeof (pse), pse2, sizeof (pse2));
  
      fail_unless_equals_int (9, gst_rtcp_packet_get_length (&packet));
      fail_unless_equals_int (concat_len / 4,
          gst_rtcp_packet_get_profile_specific_ext_length (&packet));
  
      /* gst_rtcp_packet_get_profile_specific_ext */
      fail_unless (gst_rtcp_packet_get_profile_specific_ext (&packet, &data,
              &len));
      fail_unless_equals_int (concat_len, len);
      fail_unless (data != NULL);
      fail_unless_equals_int (0, memcmp (concat_pse, data, len));
  
      /* gst_rtcp_packet_copy_profile_specific_ext */
      fail_unless (gst_rtcp_packet_copy_profile_specific_ext (&packet, &data,
              &len));
      fail_unless_equals_int (concat_len, len);
      fail_unless (data != NULL);
      fail_unless_equals_int (0, memcmp (concat_pse, data, len));
      g_free (data);
      g_free (concat_pse);
    }
  
    /* close and validate */
    gst_rtcp_buffer_unmap (&rtcp);
    fail_unless (gst_rtcp_buffer_validate (buf) == TRUE);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer_app)
  {
    GstBuffer *buf;
    GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
    GstRTCPPacket packet;
    guint mtu = 1000;
    const guint8 data[] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77 };
    guint max_data_length = (mtu - 12) / 4;
    guint8 *data_ptr;
  
    fail_unless ((buf = gst_rtcp_buffer_new (mtu)) != NULL);
    gst_rtcp_buffer_map (buf, GST_MAP_READWRITE, &rtcp);
  
    /* Not a valid packet yet */
    fail_if (gst_rtcp_buffer_validate (buf));
    fail_if (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
    fail_unless_equals_int (gst_rtcp_buffer_get_packet_count (&rtcp), 0);
  
    /* Add APP packet  */
    fail_unless (gst_rtcp_buffer_add_packet (&rtcp, GST_RTCP_TYPE_APP, &packet));
    gst_rtcp_packet_app_set_subtype (&packet, 0x15);
    gst_rtcp_packet_app_set_ssrc (&packet, 0x01234567);
    gst_rtcp_packet_app_set_name (&packet, "Test");
  
    /* Check maximum allowed data */
    fail_if (gst_rtcp_packet_app_set_data_length (&packet, max_data_length + 1));
    fail_unless (gst_rtcp_packet_app_set_data_length (&packet, max_data_length));
  
    /* Add data */
    fail_unless (gst_rtcp_packet_app_set_data_length (&packet,
            (sizeof (data) + 3) / 4));
    fail_unless_equals_int (gst_rtcp_packet_app_get_data_length (&packet), 2);
    fail_unless ((data_ptr = gst_rtcp_packet_app_get_data (&packet)));
    memcpy (data_ptr, data, sizeof (data));
  
    gst_rtcp_buffer_unmap (&rtcp);
  
    /* Map again with only the READ flag and check fields */
    gst_rtcp_buffer_map (buf, GST_MAP_READ, &rtcp);
    fail_unless_equals_int (gst_rtcp_packet_app_get_subtype (&packet), 0x15);
    fail_unless_equals_int (gst_rtcp_packet_app_get_ssrc (&packet), 0x01234567);
    fail_unless (memcmp (gst_rtcp_packet_app_get_name (&packet), "Test", 4) == 0);
    fail_unless_equals_int (gst_rtcp_packet_app_get_data_length (&packet), 2);
    fail_unless ((data_ptr = gst_rtcp_packet_app_get_data (&packet)));
    fail_unless (memcmp (data_ptr, data, sizeof (data)) == 0);
    gst_rtcp_buffer_unmap (&rtcp);
  
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer_xr)
  {
    GstBuffer *buffer;
    GstRTCPPacket packet;
    GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
    guint8 rtcp_pkt[] = {
      0x80, 0xCF, 0x00, 0x0e,     /* Type XR, length = 14 */
      0x97, 0x6d, 0x21, 0x6a,
      0x01, 0x00, 0x00, 0x03,     /* Loss RLE, No thining, length = 3 */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x00, 0x01, 0x00, 0x02,
      0xcf, 0xb7, 0x8f, 0xb7,
      0x02, 0x00, 0x00, 0x03,     /* Dup RLE, No thining, length = 3 */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x00, 0x01, 0x00, 0x02,
      0xcf, 0xb7, 0x8f, 0xb7,
      0x03, 0x00, 0x00, 0x04,     /* Packet Receipt Times, No thining, length = 4 */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x00, 0x01, 0x00, 0x02,
      0x59, 0xf9, 0xdd, 0x7e,
      0x59, 0xf9, 0xdd, 0x7e,
    };
  
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt, sizeof (rtcp_pkt), 0, sizeof (rtcp_pkt), NULL, NULL);
  
    fail_unless (gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp));
  
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
    fail_unless (gst_rtcp_packet_get_type (&packet) == GST_RTCP_TYPE_XR);
    fail_unless (gst_rtcp_packet_xr_get_ssrc (&packet) ==
        GST_READ_UINT32_BE (rtcp_pkt + 12));
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_LRLE);
    fail_unless (gst_rtcp_packet_xr_next_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_DRLE);
    fail_unless (gst_rtcp_packet_xr_next_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_PRT);
  
    fail_if (gst_rtcp_packet_xr_next_rb (&packet));
  
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer_xr_rle)
  {
    GstBuffer *buffer;
    GstRTCPPacket packet;
    guint32 ssrc, chunk_count;
    guint8 thining;
    guint16 begin_seq, end_seq, chunk;
    GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
    guint8 rtcp_pkt[] = {
      0x80, 0xCF, 0x00, 0x0a,     /* Type XR, length = 10 */
      0x97, 0x6d, 0x21, 0x6a,
      0x01, 0x00, 0x00, 0x03,     /* Loss RLE, No thining, length = 3 */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x00, 0x01, 0x00, 0x02,
      0x80, 0x12, 0x00, 0x00,
      0x02, 0x00, 0x00, 0x04,     /* Dup RLE, No thining, length = 4 */
      0x97, 0x6d, 0x21, 0x7b,     /* SSRC of source */
      0x00, 0x01, 0x00, 0x04,
      0x8f, 0x21, 0x8f, 0x22,
      0x8f, 0x23, 0x8f, 0x24
    };
    guint8 rtcp_pkt_invalid_pkt_length[] = {
      0x80, 0xCF, 0x00, 0x04,     /* Type XR, length = 4 */
      0x97, 0x6d, 0x21, 0x6a,
      0x01, 0x00, 0x00, 0x02,     /* Loss RLE, No thining, length = 1 (but really 3) */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x00, 0x01, 0x00, 0x02,
    };
  
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt, sizeof (rtcp_pkt), 0, sizeof (rtcp_pkt), NULL, NULL);
    gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp);
  
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
  
    /* check LRLE */
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_LRLE);
    fail_unless (gst_rtcp_packet_xr_get_rle_info (&packet, &ssrc, &thining,
            &begin_seq, &end_seq, &chunk_count));
    fail_unless_equals_int (ssrc, GST_READ_UINT32_BE (rtcp_pkt + 12));
    fail_unless_equals_int (thining, 0);
    fail_unless_equals_int (begin_seq, 0x0001);
    fail_unless_equals_int (end_seq, 0x0002);
    fail_unless_equals_int (chunk_count, 2);
  
    gst_rtcp_packet_xr_get_rle_nth_chunk (&packet, 0, &chunk);
    fail_unless_equals_int (chunk, 0x8012);
  
    gst_rtcp_packet_xr_get_rle_nth_chunk (&packet, 1, &chunk);
    fail_unless_equals_int (chunk, 0x0);
  
    /* check DRLE */
    fail_unless (gst_rtcp_packet_xr_next_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_DRLE);
    fail_unless (gst_rtcp_packet_xr_get_rle_info (&packet, &ssrc, &thining,
            &begin_seq, &end_seq, &chunk_count));
    fail_unless_equals_int (ssrc, GST_READ_UINT32_BE (rtcp_pkt + 28));
    fail_unless_equals_int (thining, 0);
    fail_unless_equals_int (begin_seq, 0x0001);
    fail_unless_equals_int (end_seq, 0x0004);
    fail_unless_equals_int (chunk_count, 4);
  
    gst_rtcp_packet_xr_get_rle_nth_chunk (&packet, 1, &chunk);
    fail_unless_equals_int (chunk, 0x8f22);
  
    gst_rtcp_packet_xr_get_rle_nth_chunk (&packet, 2, &chunk);
    fail_unless_equals_int (chunk, 0x8f23);
  
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  
    /* Test invalid length */
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt_invalid_pkt_length, sizeof (rtcp_pkt_invalid_pkt_length), 0,
        sizeof (rtcp_pkt_invalid_pkt_length), NULL, NULL);
    gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp);
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
  
    /* check LRLE (should fail because length is too short) */
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_LRLE);
    fail_if (gst_rtcp_packet_xr_get_rle_info (&packet, &ssrc, &thining,
            &begin_seq, &end_seq, &chunk_count));
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer_xr_prt)
  {
    GstBuffer *buffer;
    GstRTCPPacket packet;
    guint32 ssrc, receipt_time;
    guint8 thining;
    guint16 begin_seq, end_seq;
    GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
    guint8 rtcp_pkt[] = {
      0x80, 0xCF, 0x00, 0x06,     /* Type XR, length = 6 */
      0x97, 0x6d, 0x21, 0x6a,
      0x03, 0x00, 0x00, 0x04,     /* Packet Receipt Times, No thining, length = 4 */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x00, 0x01, 0x00, 0x03,
      0x59, 0xf9, 0xdd, 0x7e,
      0x59, 0xf9, 0xde, 0x00,
    };
    guint8 rtcp_pkt_invalid_pkt_length[] = {
      0x80, 0xCF, 0x00, 0x04,     /* Type XR, length = 4 */
      0x97, 0x6d, 0x21, 0x6a,
      0x03, 0x00, 0x00, 0x02,     /* Packet Receipt Times, No thining, length = 2 (but should be 4) */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x00, 0x01, 0x00, 0x03,
    };
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt, sizeof (rtcp_pkt), 0, sizeof (rtcp_pkt), NULL, NULL);
    gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp);
  
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
  
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_PRT);
  
    fail_unless (gst_rtcp_packet_xr_get_prt_info (&packet, &ssrc, &thining,
            &begin_seq, &end_seq));
    fail_unless (gst_rtcp_packet_xr_get_prt_by_seq (&packet, 2, &receipt_time));
    fail_unless_equals_int_hex (receipt_time, 0x59f9de00L);
  
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  
    /* Test for invalid length */
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt_invalid_pkt_length, sizeof (rtcp_pkt_invalid_pkt_length), 0,
        sizeof (rtcp_pkt_invalid_pkt_length), NULL, NULL);
    gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp);
  
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
  
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_PRT);
  
    fail_if (gst_rtcp_packet_xr_get_prt_info (&packet, &ssrc, &thining,
            &begin_seq, &end_seq));
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer_xr_rrt)
  {
    GstBuffer *buffer;
    GstRTCPPacket packet;
    guint64 ntptime;
    GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
    guint8 rtcp_pkt[] = {
      0x80, 0xCF, 0x00, 0x04,     /* Type XR, length = 4 */
      0x97, 0x6d, 0x21, 0x6a,
      0x04, 0x00, 0x00, 0x02,     /* Receiver Reference Time, length = 2 */
      0x01, 0x23, 0x45, 0x67,
      0x89, 0x01, 0x23, 0x45
    };
    guint8 rtcp_pkt_invalid_pkt_length[] = {
      0x80, 0xCF, 0x00, 0x04,     /* Type XR, length = 4 */
      0x97, 0x6d, 0x21, 0x6a,
      0x04, 0x00, 0x00, 0x01,     /* Receiver Reference Time, length = 1 */
      0x01, 0x23, 0x45, 0x67,
      0x89, 0x01, 0x23, 0x45
    };
  
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt, sizeof (rtcp_pkt), 0, sizeof (rtcp_pkt), NULL, NULL);
    gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp);
  
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
  
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_RRT);
  
    fail_unless (gst_rtcp_packet_xr_get_rrt (&packet, &ntptime));
    fail_unless_equals_uint64_hex (ntptime, 0x0123456789012345LL);
  
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  
    /* Test invalid length */
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt_invalid_pkt_length, sizeof (rtcp_pkt_invalid_pkt_length), 0,
        sizeof (rtcp_pkt_invalid_pkt_length), NULL, NULL);
    gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp);
  
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
  
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_RRT);
  
    fail_if (gst_rtcp_packet_xr_get_rrt (&packet, &ntptime));
  
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer_xr_dlrr)
  {
    GstBuffer *buffer;
    GstRTCPPacket packet;
    guint32 ssrc, last_rr, delay;
    GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
    guint8 rtcp_pkt[] = {
      0x80, 0xCF, 0x00, 0x08,     /* Type XR, length = 8 */
      0x97, 0x6d, 0x21, 0x6a,
      0x05, 0x00, 0x00, 0x06,     /* DLRR, length = 6 */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x01, 0x23, 0x45, 0x67,
      0x89, 0x01, 0x23, 0x45,
      0x97, 0x6d, 0x21, 0x6b,     /* SSRC of source */
      0x01, 0x23, 0x45, 0x67,
      0x89, 0x01, 0x23, 0x45
    };
  
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt, sizeof (rtcp_pkt), 0, sizeof (rtcp_pkt), NULL, NULL);
    gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp);
  
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
  
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_DLRR);
  
    fail_unless (gst_rtcp_packet_xr_get_dlrr_block (&packet, 0, &ssrc, &last_rr,
            &delay));
    fail_unless_equals_int_hex (ssrc, GST_READ_UINT32_BE (rtcp_pkt + 12));
    fail_unless (gst_rtcp_packet_xr_get_dlrr_block (&packet, 1, &ssrc, &last_rr,
            &delay));
    fail_unless_equals_int_hex (ssrc, GST_READ_UINT32_BE (rtcp_pkt + 24));
  
    /* it has only two sub-blocks. */
    fail_if (gst_rtcp_packet_xr_get_dlrr_block (&packet, 2, &ssrc, &last_rr,
            &delay));
  
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer_xr_ssumm)
  {
    GstBuffer *buffer;
    GstRTCPPacket packet;
    guint32 ssrc, lost_packets, dup_packets;
    guint16 begin_seq, end_seq;
    guint32 min_jitter, max_jitter, mean_jitter, dev_jitter;
    guint8 min_ttl, max_ttl, mean_ttl, dev_ttl;
    gboolean ipv4;
    GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
    guint8 rtcp_pkt[] = {
      0x80, 0xCF, 0x00, 0x0b,     /* Type XR, length = 11 */
      0x97, 0x6d, 0x21, 0x6a,
      0x06, 0xe8, 0x00, 0x09,     /* Statistics summary, length = 9 */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x00, 0x01, 0x00, 0x02,
      0x00, 0x00, 0x00, 0x01,
      0x00, 0x00, 0x00, 0x02,
      0x00, 0x00, 0x00, 0x03,
      0x00, 0x00, 0x00, 0x04,
      0x00, 0x00, 0x00, 0x05,
      0x00, 0x00, 0x00, 0x06,
      0x01, 0x80, 0x0f, 0x8f
    };
  
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt, sizeof (rtcp_pkt), 0, sizeof (rtcp_pkt), NULL, NULL);
    gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp);
  
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
  
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_SSUMM);
  
    fail_unless (gst_rtcp_packet_xr_get_summary_info (&packet, &ssrc, &begin_seq,
            &end_seq));
    fail_unless_equals_int_hex (ssrc, GST_READ_UINT32_BE (rtcp_pkt + 12));
    fail_unless_equals_int (begin_seq, GST_READ_UINT16_BE (rtcp_pkt + 16));
    fail_unless_equals_int (end_seq, GST_READ_UINT16_BE (rtcp_pkt + 18));
  
    fail_unless (gst_rtcp_packet_xr_get_summary_pkt (&packet, &lost_packets,
            &dup_packets));
    fail_unless_equals_int (lost_packets, GST_READ_UINT32_BE (rtcp_pkt + 20));
    fail_unless_equals_int (dup_packets, GST_READ_UINT32_BE (rtcp_pkt + 24));
  
    fail_unless (gst_rtcp_packet_xr_get_summary_jitter (&packet, &min_jitter,
            &max_jitter, &mean_jitter, &dev_jitter));
    fail_unless_equals_int (min_jitter, GST_READ_UINT32_BE (rtcp_pkt + 28));
    fail_unless_equals_int (max_jitter, GST_READ_UINT32_BE (rtcp_pkt + 32));
    fail_unless_equals_int (mean_jitter, GST_READ_UINT32_BE (rtcp_pkt + 36));
    fail_unless_equals_int (dev_jitter, GST_READ_UINT32_BE (rtcp_pkt + 40));
  
    fail_unless (gst_rtcp_packet_xr_get_summary_ttl (&packet, &ipv4, &min_ttl,
            &max_ttl, &mean_ttl, &dev_ttl));
    fail_unless (ipv4);
    fail_unless_equals_int (min_ttl, rtcp_pkt[44]);
    fail_unless_equals_int (max_ttl, rtcp_pkt[45]);
    fail_unless_equals_int (mean_ttl, rtcp_pkt[46]);
    fail_unless_equals_int (dev_ttl, rtcp_pkt[47]);
  
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtcp_buffer_xr_voipmtrx)
  {
    GstBuffer *buffer;
    GstRTCPPacket packet;
    guint32 ssrc;
    guint8 loss_rate, discard_rate, burst_density, gap_density;
    guint8 signal_level, noise_level, rerl, gmin;
    guint8 r_factor, ext_r_factor, mos_lq, mos_cq, rx_config;
    guint16 burst_duration, gap_duration;
    guint16 roundtrip_delay, end_system_delay;
    guint16 jb_nominal, jb_maximum, jb_abs_max;
    GstRTCPBuffer rtcp = GST_RTCP_BUFFER_INIT;
    guint8 rtcp_pkt[] = {
      0x80, 0xCF, 0x00, 0x0a,     /* Type XR, length = 10 */
      0x97, 0x6d, 0x21, 0x6a,
      0x07, 0x00, 0x00, 0x08,     /* VoIP Metrics, length = 8 */
      0x97, 0x6d, 0x21, 0x6a,     /* SSRC of source */
      0x01, 0x02, 0x03, 0x04,
      0x05, 0x06, 0x07, 0x08,
      0x09, 0x0a, 0x0b, 0x0c,
      0x0d, 0x0e, 0x0f, 0x10,
      0x11, 0x12, 0x13, 0x14,
      0x15, 0x00, 0x16, 0x17,
      0x18, 0x19, 0x1a, 0x1b
    };
  
    buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
        rtcp_pkt, sizeof (rtcp_pkt), 0, sizeof (rtcp_pkt), NULL, NULL);
    gst_rtcp_buffer_map (buffer, GST_MAP_READ, &rtcp);
  
    fail_unless (gst_rtcp_buffer_get_first_packet (&rtcp, &packet));
  
    fail_unless (gst_rtcp_packet_xr_first_rb (&packet));
    fail_unless (gst_rtcp_packet_xr_get_block_type (&packet) ==
        GST_RTCP_XR_TYPE_VOIP_METRICS);
    fail_unless (gst_rtcp_packet_xr_get_voip_metrics_ssrc (&packet, &ssrc));
    fail_unless_equals_int_hex (ssrc, GST_READ_UINT32_BE (rtcp_pkt + 12));
  
    fail_unless (gst_rtcp_packet_xr_get_voip_packet_metrics (&packet, &loss_rate,
            &discard_rate));
    fail_unless_equals_int (loss_rate, rtcp_pkt[16]);
    fail_unless_equals_int (discard_rate, rtcp_pkt[17]);
  
    fail_unless (gst_rtcp_packet_xr_get_voip_burst_metrics (&packet,
            &burst_density, &gap_density, &burst_duration, &gap_duration));
    fail_unless_equals_int (burst_density, rtcp_pkt[18]);
    fail_unless_equals_int (gap_density, rtcp_pkt[19]);
    fail_unless_equals_int (burst_duration, GST_READ_UINT16_BE (rtcp_pkt + 20));
    fail_unless_equals_int (gap_duration, GST_READ_UINT16_BE (rtcp_pkt + 22));
  
    fail_unless (gst_rtcp_packet_xr_get_voip_delay_metrics (&packet,
            &roundtrip_delay, &end_system_delay));
    fail_unless_equals_int (roundtrip_delay, GST_READ_UINT16_BE (rtcp_pkt + 24));
    fail_unless_equals_int (end_system_delay, GST_READ_UINT16_BE (rtcp_pkt + 26));
  
    fail_unless (gst_rtcp_packet_xr_get_voip_signal_metrics (&packet,
            &signal_level, &noise_level, &rerl, &gmin));
    fail_unless_equals_int (signal_level, rtcp_pkt[28]);
    fail_unless_equals_int (noise_level, rtcp_pkt[29]);
    fail_unless_equals_int (rerl, rtcp_pkt[30]);
    fail_unless_equals_int (gmin, rtcp_pkt[31]);
  
    fail_unless (gst_rtcp_packet_xr_get_voip_quality_metrics (&packet, &r_factor,
            &ext_r_factor, &mos_lq, &mos_cq));
    fail_unless_equals_int (r_factor, rtcp_pkt[32]);
    fail_unless_equals_int (ext_r_factor, rtcp_pkt[33]);
    fail_unless_equals_int (mos_lq, rtcp_pkt[34]);
    fail_unless_equals_int (mos_cq, rtcp_pkt[35]);
  
    fail_unless (gst_rtcp_packet_xr_get_voip_configuration_params (&packet, &gmin,
            &rx_config));
    fail_unless_equals_int (gmin, rtcp_pkt[31]);
    fail_unless_equals_int (rx_config, rtcp_pkt[36]);
  
    fail_unless (gst_rtcp_packet_xr_get_voip_jitter_buffer_params (&packet,
            &jb_nominal, &jb_maximum, &jb_abs_max));
    fail_unless_equals_int (jb_nominal, GST_READ_UINT16_BE (rtcp_pkt + 38));
    fail_unless_equals_int (jb_maximum, GST_READ_UINT16_BE (rtcp_pkt + 40));
    fail_unless_equals_int (jb_abs_max, GST_READ_UINT16_BE (rtcp_pkt + 42));
  
    gst_rtcp_buffer_unmap (&rtcp);
    gst_buffer_unref (buffer);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtp_ntp64_extension)
  {
    GstBuffer *buf;
    gpointer data;
    guint size;
    GstRTPBuffer rtp = { NULL, };
    guint8 bytes[] = { 0x01, 0x23, 0x45, 0x67, 0x89, 0x01, 0x23, 0x45 };
    guint64 ntptime;
    guint8 hdrext_ntp64[GST_RTP_HDREXT_NTP_64_SIZE];
  
    buf = gst_rtp_buffer_new_allocate (0, 0, 0);
  
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
  
    /* format extension data */
    gst_rtp_hdrext_set_ntp_64 (hdrext_ntp64, GST_RTP_HDREXT_NTP_64_SIZE,
        0x0123456789012345LL);
    fail_unless (memcmp (bytes, hdrext_ntp64, sizeof (bytes)) == 0);
  
    /* add as 1byte header */
    gst_rtp_buffer_add_extension_onebyte_header (&rtp, 1, hdrext_ntp64,
        GST_RTP_HDREXT_NTP_64_SIZE);
  
    /* get extension again */
    gst_rtp_buffer_get_extension_onebyte_header (&rtp, 1, 0, &data, &size);
  
    /* and check */
    fail_unless (size == GST_RTP_HDREXT_NTP_64_SIZE);
    fail_unless (memcmp (data, hdrext_ntp64, size) == 0);
  
    gst_rtp_hdrext_get_ntp_64 (data, size, &ntptime);
    fail_unless (ntptime == 0x0123456789012345LL);
  
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtp_ntp56_extension)
  {
    GstBuffer *buf;
    gpointer data;
    guint size;
    GstRTPBuffer rtp = { NULL, };
    guint8 bytes[] = { 0x23, 0x45, 0x67, 0x89, 0x01, 0x23, 0x45 };
    guint64 ntptime;
    guint8 hdrext_ntp56[GST_RTP_HDREXT_NTP_56_SIZE];
  
    buf = gst_rtp_buffer_new_allocate (0, 0, 0);
  
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
  
    /* format extension data */
    gst_rtp_hdrext_set_ntp_56 (hdrext_ntp56, GST_RTP_HDREXT_NTP_56_SIZE,
        0x0123456789012345LL);
    /* truncates top bits */
    fail_unless (memcmp (bytes, hdrext_ntp56, sizeof (bytes)) == 0);
  
    /* add as 1byte header */
    gst_rtp_buffer_add_extension_onebyte_header (&rtp, 1, hdrext_ntp56,
        GST_RTP_HDREXT_NTP_56_SIZE);
  
    /* get extension again */
    gst_rtp_buffer_get_extension_onebyte_header (&rtp, 1, 0, &data, &size);
  
    /* and check */
    fail_unless (size == GST_RTP_HDREXT_NTP_56_SIZE);
    fail_unless (memcmp (data, hdrext_ntp56, size) == 0);
  
    gst_rtp_hdrext_get_ntp_56 (data, size, &ntptime);
    fail_unless (ntptime == 0x23456789012345LL);
  
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtp_buffer_get_extension_bytes)
  {
    GstBuffer *buf;
    guint16 bits;
    guint size;
    guint8 misc_data[4] = { 1, 2, 3, 4 };
    gpointer pointer;
    GstRTPBuffer rtp = { NULL, };
    GBytes *gb;
    gsize gb_size;
  
    /* create RTP buffer without extension header */
    buf = gst_rtp_buffer_new_allocate (4, 0, 0);
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
    fail_if (gst_rtp_buffer_get_extension (&rtp));
  
    /* verify that obtaining extension data returns NULL and bits are unchanged */
    bits = 0xabcd;
    gb = gst_rtp_buffer_get_extension_bytes (&rtp, &bits);
    fail_unless (gb == NULL);
    fail_unless (bits == 0xabcd);
  
    g_bytes_unref (gb);
  
    /* add extension header without data and verify that
     * an empty GBytes is returned */
    fail_unless (gst_rtp_buffer_set_extension_data (&rtp, 270, 0));
    fail_unless (gst_rtp_buffer_get_extension (&rtp));
    gb = gst_rtp_buffer_get_extension_bytes (&rtp, &bits);
    fail_unless (gb != NULL);
    fail_unless_equals_int (g_bytes_get_size (gb), 0);
  
    g_bytes_unref (gb);
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  
    /* create RTP buffer with extension header and extension data */
    buf = gst_rtp_buffer_new_allocate (4, 0, 0);
    gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp);
    fail_unless (gst_rtp_buffer_add_extension_onebyte_header (&rtp, 5,
            misc_data, 2));
    fail_unless (gst_rtp_buffer_get_extension (&rtp));
  
    /* verify that gst_rtp_buffer_get_extension_bytes returns the same
     * header bits and data as does gst_rtp_buffer_get_extension_data */
    fail_unless (gst_rtp_buffer_get_extension_data (&rtp, &bits, &pointer,
            &size));
    fail_unless (bits == 0xBEDE);
    fail_unless (size == 1);
    gb = gst_rtp_buffer_get_extension_bytes (&rtp, &bits);
    fail_unless (gb != NULL);
    fail_unless (bits == 0xBEDE);
    fail_unless_equals_int (g_bytes_get_size (gb), size * 4);
    fail_unless (memcmp (pointer, g_bytes_get_data (gb, &gb_size),
            size * 4) == 0);
    fail_unless_equals_int (gb_size, size * 4);
  
    g_bytes_unref (gb);
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_rtp_buffer_get_payload_bytes)
  {
    guint8 rtppacket[] = {
      0x80, 0xe0, 0xdf, 0xd7, 0xef, 0x84, 0xbe, 0xed, 0x9b, 0xc5, 0x29, 0x14,
      'H', 'e', 'l', 'l', 'o', '\0'
    };
  
    GstBuffer *buf;
    GstMapInfo map;
    gconstpointer data;
    gsize size;
    GstRTPBuffer rtp = { NULL, };
    GBytes *gb;
  
    /* create empty RTP buffer, i.e. no payload */
    buf = gst_rtp_buffer_new_allocate (0, 4, 0);
    fail_unless (buf != NULL);
    gst_buffer_map (buf, &map, GST_MAP_READWRITE);
    fail_unless_equals_int (map.size, RTP_HEADER_LEN + 4);
    fail_unless (gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp));
  
    /* verify that requesting payload data returns an empty GBytes */
    gb = gst_rtp_buffer_get_payload_bytes (&rtp);
    fail_unless (gb != NULL);
    fail_unless_equals_int (g_bytes_get_size (gb), 0);
  
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unmap (buf, &map);
    gst_buffer_unref (buf);
    g_bytes_unref (gb);
  
    /* create RTP buffer containing RTP packet */
    buf = gst_buffer_new_and_alloc (sizeof (rtppacket));
    fail_unless (buf != NULL);
    gst_buffer_fill (buf, 0, rtppacket, sizeof (rtppacket));
    gst_buffer_map (buf, &map, GST_MAP_READWRITE);
    fail_unless_equals_int (map.size, sizeof (rtppacket));
    fail_unless (gst_rtp_buffer_map (buf, GST_MAP_READWRITE, &rtp));
  
    /* verify that the returned GBytes contains the correct payload data */
    gb = gst_rtp_buffer_get_payload_bytes (&rtp);
    fail_unless (gb != NULL);
    data = g_bytes_get_data (gb, &size);
    fail_unless (data != NULL);
    fail_unless (size == (sizeof (rtppacket) - RTP_HEADER_LEN));
    fail_unless_equals_string ("Hello", data);
    g_bytes_unref (gb);
  
    gst_rtp_buffer_unmap (&rtp);
    gst_buffer_unmap (buf, &map);
    gst_buffer_unref (buf);
  }
  
  GST_END_TEST;
  
  
  GST_START_TEST (test_rtp_buffer_empty_payload)
  {
    GstRTPBuffer rtp = { NULL };
    GstBuffer *paybuf, *outbuf;
  
    paybuf = gst_rtp_buffer_new_allocate (0, 0, 0);
  
    gst_rtp_buffer_map (paybuf, GST_MAP_READ, &rtp);
    outbuf = gst_rtp_buffer_get_payload_buffer (&rtp);
    gst_rtp_buffer_unmap (&rtp);
  
    gst_buffer_unref (paybuf);
    gst_buffer_unref (outbuf);
  }
  
  GST_END_TEST;
  
  
  GST_START_TEST (test_ext_timestamp_basic)
  {
    guint64 exttimestamp = -1;
    guint64 result = 0;
  
    /* no wraparound when timestamps are increasing */
    result = gst_rtp_buffer_ext_timestamp (&exttimestamp, 0);
    fail_unless_equals_uint64 (result, 0);
    result = gst_rtp_buffer_ext_timestamp (&exttimestamp, 10);
    fail_unless_equals_uint64 (result, 10);
    result = gst_rtp_buffer_ext_timestamp (&exttimestamp, 10);
    fail_unless_equals_uint64 (result, 10);
    result = gst_rtp_buffer_ext_timestamp (&exttimestamp,
        G_GUINT64_CONSTANT (1) + G_MAXINT32);
    fail_unless_equals_uint64 (result, G_GUINT64_CONSTANT (1) + G_MAXINT32);
  
    /* Even big bumps under G_MAXINT32 don't result in wrap-around */
    exttimestamp = -1;
    result = gst_rtp_buffer_ext_timestamp (&exttimestamp, 1087500);
    fail_unless_equals_uint64 (result, 1087500);
    result = gst_rtp_buffer_ext_timestamp (&exttimestamp, 24);
    fail_unless_equals_uint64 (result, 24);
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_ext_timestamp_wraparound)
  {
    guint64 ext_ts = -1;
  
    fail_unless_equals_uint64 (gst_rtp_buffer_ext_timestamp (&ext_ts,
            G_MAXUINT32 - 90000 + G_GUINT64_CONSTANT (1)),
        (G_MAXUINT32 - 90000 + G_GUINT64_CONSTANT (1)));
  
    fail_unless_equals_uint64 (gst_rtp_buffer_ext_timestamp (&ext_ts, 0),
        G_MAXUINT32 + G_GUINT64_CONSTANT (1));
  
    fail_unless_equals_uint64 (gst_rtp_buffer_ext_timestamp (&ext_ts, 90000),
        (G_MAXUINT32 + G_GUINT64_CONSTANT (1) + 90000));
  }
  
  GST_END_TEST;
  
  
  GST_START_TEST (test_ext_timestamp_wraparound_disordered)
  {
    guint64 ext_ts = -1;
  
    fail_unless (gst_rtp_buffer_ext_timestamp (&ext_ts,
            G_MAXUINT32 - 90000 + G_GUINT64_CONSTANT (1))
        == (G_MAXUINT32 - 90000 + G_GUINT64_CONSTANT (1)));
  
    fail_unless (gst_rtp_buffer_ext_timestamp (&ext_ts, 0)
        == G_MAXUINT32 + G_GUINT64_CONSTANT (1));
  
    /* Unwrapping around */
    fail_unless (gst_rtp_buffer_ext_timestamp (&ext_ts,
            G_MAXUINT32 - 90000 + G_GUINT64_CONSTANT (1))
        == (G_MAXUINT32 - 90000 + G_GUINT64_CONSTANT (1)));
  
    fail_unless (gst_rtp_buffer_ext_timestamp (&ext_ts, 90000)
        == (G_MAXUINT32 + G_GUINT64_CONSTANT (1) + 90000));
  }
  
  GST_END_TEST;
  
  GST_START_TEST (test_ext_timestamp_wraparound_disordered_cannot_unwrap)
  {
    guint64 ext_ts = -1;
  
    fail_unless (gst_rtp_buffer_ext_timestamp (&ext_ts, 90000)
        == 90000);
  
    /* Cannot unwrapping around */
    fail_unless (gst_rtp_buffer_ext_timestamp (&ext_ts,
            G_MAXUINT32 - 90000 + G_GUINT64_CONSTANT (1)) == 0);
  
    fail_unless (gst_rtp_buffer_ext_timestamp (&ext_ts, 90000)
        == 90000);
  }
  
  GST_END_TEST;
  
  static Suite *
  rtp_suite (void)
  {
    Suite *s = suite_create ("rtp support library");
    TCase *tc_chain = tcase_create ("general");
  
    suite_add_tcase (s, tc_chain);
    tcase_add_test (tc_chain, test_rtp_buffer);
    tcase_add_test (tc_chain, test_rtp_buffer_validate_corrupt);
    tcase_add_test (tc_chain, test_rtp_buffer_validate_padding);
    tcase_add_test (tc_chain, test_rtp_buffer_set_extension_data);
    //tcase_add_test (tc_chain, test_rtp_buffer_list_set_extension);
    tcase_add_test (tc_chain, test_rtp_seqnum_compare);
  
    tcase_add_test (tc_chain, test_rtcp_buffer);
    tcase_add_test (tc_chain, test_rtcp_reduced_buffer);
    tcase_add_test (tc_chain, test_rtcp_validate_with_padding);
    tcase_add_test (tc_chain, test_rtcp_validate_with_padding_wrong_padlength);
    tcase_add_test (tc_chain,
        test_rtcp_validate_with_padding_excluded_from_length);
    tcase_add_test (tc_chain,
        test_rtcp_validate_with_padding_set_in_first_packet);
    tcase_add_test (tc_chain, test_rtcp_validate_reduced_without_padding);
    tcase_add_test (tc_chain, test_rtcp_validate_reduced_with_padding);
    tcase_add_test (tc_chain, test_rtcp_buffer_profile_specific_extension);
    tcase_add_test (tc_chain, test_rtcp_buffer_app);
    tcase_add_test (tc_chain, test_rtcp_buffer_xr);
    tcase_add_test (tc_chain, test_rtcp_buffer_xr_rle);
    tcase_add_test (tc_chain, test_rtcp_buffer_xr_prt);
    tcase_add_test (tc_chain, test_rtcp_buffer_xr_rrt);
    tcase_add_test (tc_chain, test_rtcp_buffer_xr_dlrr);
    tcase_add_test (tc_chain, test_rtcp_buffer_xr_ssumm);
    tcase_add_test (tc_chain, test_rtcp_buffer_xr_voipmtrx);
  
    tcase_add_test (tc_chain, test_rtp_ntp64_extension);
    tcase_add_test (tc_chain, test_rtp_ntp56_extension);
  
    tcase_add_test (tc_chain, test_rtp_buffer_get_payload_bytes);
    tcase_add_test (tc_chain, test_rtp_buffer_get_extension_bytes);
    tcase_add_test (tc_chain, test_rtp_buffer_empty_payload);
  
    //tcase_add_test (tc_chain, test_rtp_buffer_list);
  
    tcase_add_test (tc_chain, test_ext_timestamp_basic);
    tcase_add_test (tc_chain, test_ext_timestamp_wraparound);
    tcase_add_test (tc_chain, test_ext_timestamp_wraparound_disordered);
    tcase_add_test (tc_chain,
        test_ext_timestamp_wraparound_disordered_cannot_unwrap);
  
    return s;
  }
  
  GST_CHECK_MAIN (rtp);
  