/* GStreamer

 *

 * Copyright (C) 2006 Thomas Vander Stichele <thomas at apestaart dot org>

 *

 * 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., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#include <string.h>

#include <unistd.h>

#include <gst/check/gstcheck.h>

#include <gst/dataprotocol/dataprotocol.h>

/* For ease of programming we use globals to keep refs for our floating

 * src and sink pads we create; otherwise we always have to do get_pad,

 * get_peer, and then remove references in every test function */

static GstPad *mysrcpad, *myshsrcpad, *mysinkpad;

#define AUDIO_CAPS_TEMPLATE_STRING \

  "audio/x-raw-int, " \

    "rate = (int) [ 1, MAX ], " \

    "channels = (int) [ 1, 8 ], " \

    "endianness = (int) BYTE_ORDER, " \

    "width = (int) {8, 16}, " \

    "depth = (int) {8, 16}, " \

    "signed = (boolean) true"

#define AUDIO_CAPS_STRING \

  "audio/x-raw-int, " \

    "rate = (int) 1000, " \

    "channels = (int) 2, " \

    "endianness = (int) BYTE_ORDER, " \

    "width = (int) 16, " \

    "depth = (int) 16, " \

    "signed = (boolean) true"

static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",

    GST_PAD_SINK,

    GST_PAD_ALWAYS,

    GST_STATIC_CAPS ("application/x-gdp")

    );

static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",

    GST_PAD_SRC,

    GST_PAD_ALWAYS,

    GST_STATIC_CAPS (AUDIO_CAPS_TEMPLATE_STRING)

    );

/* takes over reference for outcaps */

static GstElement *

setup_gdppay (void)

{

  GstElement *gdppay;

  GST_DEBUG ("setup_gdppay");

  gdppay = gst_check_setup_element ("gdppay");

  mysrcpad = gst_check_setup_src_pad (gdppay, &srctemplate, NULL);

  mysinkpad = gst_check_setup_sink_pad (gdppay, &sinktemplate, NULL);

  gst_pad_set_active (mysrcpad, TRUE);

  gst_pad_set_active (mysinkpad, TRUE);

  return gdppay;

}

static void

cleanup_gdppay (GstElement * gdppay)

{

  GST_DEBUG ("cleanup_gdppay");

  if (mysrcpad)

    gst_pad_set_active (mysrcpad, FALSE);

  if (myshsrcpad)

    gst_pad_set_active (myshsrcpad, FALSE);

  gst_pad_set_active (mysinkpad, FALSE);

  gst_check_teardown_src_pad (gdppay);

  gst_check_teardown_sink_pad (gdppay);

  gst_check_teardown_element (gdppay);

  mysrcpad = NULL;

  myshsrcpad = NULL;

}

GST_START_TEST (test_audio)

{

  GstCaps *caps;

  GstElement *gdppay;

  GstBuffer *inbuffer, *outbuffer;

  GstEvent *event;

  gchar *caps_string;

  gint length;

  gdppay = setup_gdppay ();

  fail_unless (gst_element_set_state (gdppay,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,

      "could not set to playing");

  GST_DEBUG ("new segment");

  event =

      gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, 0, GST_SECOND, 0);

  fail_unless (gst_pad_push_event (mysrcpad, event));

  /* no buffer should be pushed yet, waiting for caps */

  fail_unless_equals_int (g_list_length (buffers), 0);

  GST_DEBUG ("first buffer");

  inbuffer = gst_buffer_new_and_alloc (4);

  caps = gst_caps_from_string (AUDIO_CAPS_STRING);

  gst_buffer_set_caps (inbuffer, caps);

  caps_string = gst_caps_to_string (caps);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  /* pushing gives away my reference */

  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);

  /* we should have three buffers now */

  fail_unless_equals_int (g_list_length (buffers), 3);

  /* first buffer is the serialized new_segment event;

   * the element also holds a ref to it */

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 2);

  gst_buffer_unref (outbuffer);

  /* second buffer is the serialized caps;

   * the element also holds a ref to it */

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 2);

  length = GST_DP_HEADER_LENGTH + (strlen (caps_string) + 1);

  fail_unless_equals_int (GST_BUFFER_SIZE (outbuffer), length);

  gst_buffer_unref (outbuffer);

  /* the third buffer is the GDP buffer for our pushed buffer */

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);

  length = GST_DP_HEADER_LENGTH + 4;

  fail_unless_equals_int (GST_BUFFER_SIZE (outbuffer), length);

  gst_buffer_unref (outbuffer);

  /* second buffer */

  GST_DEBUG ("second buffer");

  inbuffer = gst_buffer_new_and_alloc (4);

  gst_buffer_set_caps (inbuffer, caps);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  /* pushing gives away my reference */

  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);

  fail_unless_equals_int (g_list_length (buffers), 1);

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);

  /* the third output buffer is data */

  length = GST_DP_HEADER_LENGTH + 4;

  fail_unless_equals_int (GST_BUFFER_SIZE (outbuffer), length);

  gst_buffer_unref (outbuffer);

  /* a third buffer without caps set explicitly; should work */

  GST_DEBUG ("Creating third buffer, no caps set");

  inbuffer = gst_buffer_new_and_alloc (4);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  /* pushing gives away my reference */

  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);

  fail_unless_equals_int (g_list_length (buffers), 1);

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);

  /* the fourth output buffer is data */

  length = GST_DP_HEADER_LENGTH + 4;

  fail_unless_equals_int (GST_BUFFER_SIZE (outbuffer), length);

  gst_buffer_unref (outbuffer);

  fail_unless (gst_element_set_state (gdppay,

          GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");

  gst_caps_unref (caps);

  g_free (caps_string);

  g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);

  g_list_free (buffers);

  buffers = NULL;

  ASSERT_OBJECT_REFCOUNT (gdppay, "gdppay", 1);

  cleanup_gdppay (gdppay);

}

GST_END_TEST;

static GstStaticPadTemplate shsrctemplate = GST_STATIC_PAD_TEMPLATE ("src",

    GST_PAD_SRC,

    GST_PAD_ALWAYS,

    GST_STATIC_CAPS ("application/x-gst-test-streamheader")

    );

static GstElement *

setup_gdppay_streamheader (void)

{

  GstElement *gdppay;

  GST_DEBUG ("setup_gdppay");

  gdppay = gst_check_setup_element ("gdppay");

  myshsrcpad = gst_check_setup_src_pad (gdppay, &shsrctemplate, NULL);

  mysinkpad = gst_check_setup_sink_pad (gdppay, &sinktemplate, NULL);

  gst_pad_set_active (myshsrcpad, TRUE);

  gst_pad_set_active (mysinkpad, TRUE);

  return gdppay;

}

/* this test serializes a stream that already has a streamheader of its own.

 * the streamheader should then be serialized and put on the GDP stream's

 * streamheader */

GST_START_TEST (test_streamheader)

{

  GstCaps *caps, *sinkcaps;

  GstElement *gdppay;

  GstBuffer *inbuffer, *outbuffer, *shbuffer;

  GstEvent *event;

  gchar *caps_string;

  gint length;

  GstStructure *structure;

  GValue array = { 0 };

  GValue value = { 0 };

  const GValue *sh;

  GArray *shbuffers;

  gdppay = setup_gdppay_streamheader ();

  fail_unless (gst_element_set_state (gdppay,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,

      "could not set to playing");

  GST_DEBUG ("new segment");

  event =

      gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, 0, GST_SECOND, 0);

  fail_unless (gst_pad_push_event (myshsrcpad, event));

  /* no buffer should be pushed yet, still waiting for caps */

  fail_unless_equals_int (g_list_length (buffers), 0);

  GST_DEBUG ("first buffer");

  inbuffer = gst_buffer_new_and_alloc (4);

  memcpy (GST_BUFFER_DATA (inbuffer), "head", 4);

  caps = gst_caps_from_string ("application/x-gst-test-streamheader");

  structure = gst_caps_get_structure (caps, 0);

  GST_BUFFER_FLAG_SET (inbuffer, GST_BUFFER_FLAG_IN_CAPS);

  g_value_init (&array, GST_TYPE_ARRAY);

  g_value_init (&value, GST_TYPE_BUFFER);

  shbuffer = gst_buffer_copy (inbuffer);

  gst_value_set_buffer (&value, shbuffer);

  gst_buffer_unref (shbuffer);

  gst_value_array_append_value (&array, &value);

  g_value_unset (&value);

  gst_structure_set_value (structure, "streamheader", &array);

  g_value_unset (&array);

  caps_string = gst_caps_to_string (caps);

  gst_buffer_set_caps (inbuffer, caps);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  /* pushing gives away my reference */

  fail_unless (gst_pad_push (myshsrcpad, inbuffer) == GST_FLOW_OK);

  /* we should have three buffers now */

  fail_unless_equals_int (g_list_length (buffers), 3);

  /* our sink pad should now have GDP caps with a streamheader that includes

   * GDP wrappings of our streamheader */

  sinkcaps = gst_pad_get_negotiated_caps (mysinkpad);

  structure = gst_caps_get_structure (sinkcaps, 0);

  fail_unless_equals_string ((gchar *) gst_structure_get_name (structure),

      "application/x-gdp");

  fail_unless (gst_structure_has_field (structure, "streamheader"));

  sh = gst_structure_get_value (structure, "streamheader");

  fail_unless (G_VALUE_TYPE (sh) == GST_TYPE_ARRAY);

  shbuffers = g_value_peek_pointer (sh);

  /* a serialized new_segment, a serialized caps, and serialization of our

   * incoming streamheader */

  fail_unless_equals_int (shbuffers->len, 3);

  gst_caps_unref (sinkcaps);

  /* first buffer is the serialized new_segment event;

   * the element also holds a ref to it */

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 2);

  gst_buffer_unref (outbuffer);

  /* second buffer is the serialized caps;

   * the element also holds a ref to it */

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 2);

  length = GST_DP_HEADER_LENGTH + (strlen (caps_string) + 1);

  fail_unless_equals_int (GST_BUFFER_SIZE (outbuffer), length);

  gst_buffer_unref (outbuffer);

  /* the third buffer is the GDP buffer for our pushed buffer */

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);

  length = GST_DP_HEADER_LENGTH + 4;

  fail_unless_equals_int (GST_BUFFER_SIZE (outbuffer), length);

  gst_buffer_unref (outbuffer);

  /* second buffer */

  GST_DEBUG ("second buffer");

  inbuffer = gst_buffer_new_and_alloc (4);

  gst_buffer_set_caps (inbuffer, caps);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  /* pushing gives away my reference */

  fail_unless (gst_pad_push (myshsrcpad, inbuffer) == GST_FLOW_OK);

  fail_unless_equals_int (g_list_length (buffers), 1);

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);

  /* the third output buffer is data */

  length = GST_DP_HEADER_LENGTH + 4;

  fail_unless_equals_int (GST_BUFFER_SIZE (outbuffer), length);

  gst_buffer_unref (outbuffer);

  /* a third buffer without caps set explicitly; should work */

  GST_DEBUG ("Creating third buffer, no caps set");

  inbuffer = gst_buffer_new_and_alloc (4);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  /* pushing gives away my reference */

  fail_unless (gst_pad_push (myshsrcpad, inbuffer) == GST_FLOW_OK);

  fail_unless_equals_int (g_list_length (buffers), 1);

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);

  /* the fourth output buffer is data */

  length = GST_DP_HEADER_LENGTH + 4;

  fail_unless_equals_int (GST_BUFFER_SIZE (outbuffer), length);

  gst_buffer_unref (outbuffer);

  fail_unless (gst_element_set_state (gdppay,

          GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");

  gst_caps_unref (caps);

  g_free (caps_string);

  g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);

  g_list_free (buffers);

  buffers = NULL;

  ASSERT_OBJECT_REFCOUNT (gdppay, "gdppay", 1);

  cleanup_gdppay (gdppay);

}

GST_END_TEST;

GST_START_TEST (test_first_no_caps)

{

  GstElement *gdppay;

  GstBuffer *inbuffer;

  gdppay = setup_gdppay ();

  fail_unless (gst_element_set_state (gdppay,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,

      "could not set to playing");

  GST_DEBUG ("first buffer");

  inbuffer = gst_buffer_new_and_alloc (4);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  /* pushing should trigger an error */

  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_NOT_NEGOTIATED);

  fail_unless_equals_int (g_list_length (buffers), 0);

  fail_unless (gst_element_set_state (gdppay,

          GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");

  g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);

  g_list_free (buffers);

  buffers = NULL;

  ASSERT_OBJECT_REFCOUNT (gdppay, "gdppay", 1);

  cleanup_gdppay (gdppay);

}

GST_END_TEST;

/* element should still work if no new_segment is sent before the first

 * buffer */

GST_START_TEST (test_first_no_new_segment)

{

  GstElement *gdppay;

  GstBuffer *inbuffer;

  GstCaps *caps;

  gdppay = setup_gdppay ();

  fail_unless (gst_element_set_state (gdppay,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,

      "could not set to playing");

  GST_DEBUG ("first buffer");

  inbuffer = gst_buffer_new_and_alloc (4);

  caps = gst_caps_from_string (AUDIO_CAPS_STRING);

  gst_buffer_set_caps (inbuffer, caps);

  gst_caps_unref (caps);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  /* pushing gives away my reference */

  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);

  /* we should have three buffers now;

   * one for an "invented" new segment, one for GDP caps, and one with our

   * buffer */

  fail_unless_equals_int (g_list_length (buffers), 3);

  fail_unless (gst_element_set_state (gdppay,

          GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");

  g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);

  g_list_free (buffers);

  buffers = NULL;

  ASSERT_OBJECT_REFCOUNT (gdppay, "gdppay", 1);

  cleanup_gdppay (gdppay);

}

GST_END_TEST;

GST_START_TEST (test_crc)

{

  GstCaps *caps;

  GstElement *gdppay;

  GstBuffer *inbuffer, *outbuffer;

  GstEvent *event;

  gchar *caps_string;

  gint length;

  guint16 crc_calculated, crc_read;

  gdppay = setup_gdppay ();

  g_object_set (gdppay, "crc-header", TRUE, NULL);

  fail_unless (gst_element_set_state (gdppay,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,

      "could not set to playing");

  GST_DEBUG ("new segment");

  event =

      gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, 0, GST_SECOND, 0);

  fail_unless (gst_pad_push_event (mysrcpad, event));

  /* no buffer should be pushed yet, waiting for caps */

  fail_unless_equals_int (g_list_length (buffers), 0);

  GST_DEBUG ("first buffer");

  inbuffer = gst_buffer_new_and_alloc (4);

  caps = gst_caps_from_string (AUDIO_CAPS_STRING);

  gst_buffer_set_caps (inbuffer, caps);

  caps_string = gst_caps_to_string (caps);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  /* pushing gives away my reference */

  fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);

  /* we should have three buffers now */

  fail_unless_equals_int (g_list_length (buffers), 3);

  /* first buffer is the serialized new_segment event;

   * the element also holds a ref to it */

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 2);

  /* verify the header checksum */

  /* CRC's start at 58 in the header */

  crc_calculated = gst_dp_crc (GST_BUFFER_DATA (outbuffer), 58);

  crc_read = GST_READ_UINT16_BE (GST_BUFFER_DATA (outbuffer) + 58);

  fail_unless_equals_int (crc_calculated, crc_read);

  /* change a byte in the header and verify that the checksum now fails */

  GST_BUFFER_DATA (outbuffer)[0] = 0xff;

  crc_calculated = gst_dp_crc (GST_BUFFER_DATA (outbuffer), 58);

  fail_if (crc_calculated == crc_read,

      "Introducing a byte error in the header should make the checksum fail");

  gst_buffer_unref (outbuffer);

  /* second buffer is the serialized caps;

   * the element also holds a ref to it */

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

  buffers = g_list_remove (buffers, outbuffer);

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 2);

  length = GST_DP_HEADER_LENGTH + (strlen (caps_string) + 1);

  fail_unless_equals_int (GST_BUFFER_SIZE (outbuffer), length);

  gst_buffer_unref (outbuffer);

  /* the third buffer is the GDP buffer for our pushed buffer */

  fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);