/* GStreamer unit tests for the audiointerleave element

 * Copyright (C) 2007 Tim-Philipp Müller <tim centricular net>

 * Copyright (C) 2008 Sebastian Dröge <slomo@circular-chaos.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., 51 Franklin St, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

/* FIXME 0.11: suppress warnings for deprecated API such as GValueArray

 * with newer GLib versions (>= 2.31.0) */

#define GLIB_DISABLE_DEPRECATION_WARNINGS

#ifdef HAVE_CONFIG_H

# include "config.h"

#endif

#ifdef HAVE_VALGRIND

# include <valgrind/valgrind.h>

#endif

#include <gst/check/gstcheck.h>

#include <gst/audio/audio.h>

#include <gst/audio/audio-enumtypes.h>

#include <gst/check/gstharness.h>

static void

gst_check_setup_events_audiointerleave (GstPad * srcpad, GstElement * element,

    GstCaps * caps, GstFormat format, const gchar * stream_id)

{

  GstSegment segment;

  gst_segment_init (&segment, format);

  fail_unless (gst_pad_push_event (srcpad,

          gst_event_new_stream_start (stream_id)));

  if (caps)

    fail_unless (gst_pad_push_event (srcpad, gst_event_new_caps (caps)));

  fail_unless (gst_pad_push_event (srcpad, gst_event_new_segment (&segment)));

}

GST_START_TEST (test_create_and_unref)

{

  GstElement *interleave;

  interleave = gst_element_factory_make ("audiointerleave", NULL);

  fail_unless (interleave != NULL);

  gst_element_set_state (interleave, GST_STATE_NULL);

  gst_object_unref (interleave);

}

GST_END_TEST;

GST_START_TEST (test_request_pads)

{

  GstElement *interleave;

  GstPad *pad1, *pad2;

  interleave = gst_element_factory_make ("audiointerleave", NULL);

  fail_unless (interleave != NULL);

  pad1 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (pad1 != NULL);

  fail_unless_equals_string (GST_OBJECT_NAME (pad1), "sink_0");

  pad2 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (pad2 != NULL);

  fail_unless_equals_string (GST_OBJECT_NAME (pad2), "sink_1");

  gst_element_release_request_pad (interleave, pad2);

  gst_object_unref (pad2);

  gst_element_release_request_pad (interleave, pad1);

  gst_object_unref (pad1);

  gst_element_set_state (interleave, GST_STATE_NULL);

  gst_object_unref (interleave);

}

GST_END_TEST;

static GstPad **mysrcpads, *mysinkpad;

static GstBus *bus;

static GstElement *interleave;

static GMutex data_mutex;

static GCond data_cond;

static gint have_data;

static gfloat input[2];

static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",

    GST_PAD_SINK,

    GST_PAD_ALWAYS,

    GST_STATIC_CAPS ("audio/x-raw, "

        "format = (string) " GST_AUDIO_NE (F32) ", "

        "channels = (int) 2, layout = (string) {interleaved, non-interleaved}, rate = (int) 48000"));

static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",

    GST_PAD_SRC,

    GST_PAD_ALWAYS,

    GST_STATIC_CAPS ("audio/x-raw, "

        "format = (string) " GST_AUDIO_NE (F32) ", "

        "channels = (int) 1, layout = (string) interleaved, rate = (int) 48000"));

#define CAPS_48khz \

        "audio/x-raw, " \

        "format = (string) " GST_AUDIO_NE (F32) ", " \

        "channels = (int) 1, layout = (string) non-interleaved," \

        "rate = (int) 48000"

static GstFlowReturn

interleave_chain_func (GstPad * pad, GstObject * parent, GstBuffer * buffer)

{

  GstMapInfo map;

  gfloat *outdata;

  gint i;

  fail_unless (GST_IS_BUFFER (buffer));

  fail_unless (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_GAP));

  gst_buffer_map (buffer, &map, GST_MAP_READ);

  outdata = (gfloat *) map.data;

  fail_unless (outdata != NULL);

#ifdef HAVE_VALGRIND

  if (!(RUNNING_ON_VALGRIND))

#endif

    for (i = 0; i < map.size / sizeof (float); i += 2) {

      fail_unless_equals_float (outdata[i], input[0]);

      fail_unless_equals_float (outdata[i + 1], input[1]);

    }

  g_mutex_lock (&data_mutex);

  have_data += map.size;

  g_cond_signal (&data_cond);

  g_mutex_unlock (&data_mutex);

  gst_buffer_unmap (buffer, &map);

  gst_buffer_unref (buffer);

  return GST_FLOW_OK;

}

GST_START_TEST (test_audiointerleave_2ch)

{

  GstElement *queue;

  GstPad *sink0, *sink1, *src, *tmp;

  GstCaps *caps;

  gint i;

  GstBuffer *inbuf;

  gfloat *indata;

  GstMapInfo map;

  mysrcpads = g_new0 (GstPad *, 2);

  have_data = 0;

  interleave = gst_element_factory_make ("audiointerleave", NULL);

  fail_unless (interleave != NULL);

  g_object_set (interleave, "latency", GST_SECOND / 4, NULL);

  queue = gst_element_factory_make ("queue", "queue");

  fail_unless (queue != NULL);

  sink0 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sink0 != NULL);

  fail_unless_equals_string (GST_OBJECT_NAME (sink0), "sink_0");

  sink1 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sink1 != NULL);

  fail_unless_equals_string (GST_OBJECT_NAME (sink1), "sink_1");

  mysrcpads[0] = gst_pad_new_from_static_template (&srctemplate, "src0");

  fail_unless (mysrcpads[0] != NULL);

  caps = gst_caps_from_string (CAPS_48khz);

  gst_pad_set_active (mysrcpads[0], TRUE);

  gst_check_setup_events_audiointerleave (mysrcpads[0], interleave, caps,

      GST_FORMAT_TIME, "0");

  gst_pad_use_fixed_caps (mysrcpads[0]);

  mysrcpads[1] = gst_pad_new_from_static_template (&srctemplate, "src1");

  fail_unless (mysrcpads[1] != NULL);

  gst_pad_set_active (mysrcpads[1], TRUE);

  gst_check_setup_events_audiointerleave (mysrcpads[1], interleave, caps,

      GST_FORMAT_TIME, "1");

  gst_pad_use_fixed_caps (mysrcpads[1]);

  tmp = gst_element_get_static_pad (queue, "sink");

  fail_unless (gst_pad_link (mysrcpads[0], tmp) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  tmp = gst_element_get_static_pad (queue, "src");

  fail_unless (gst_pad_link (tmp, sink0) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  fail_unless (gst_pad_link (mysrcpads[1], sink1) == GST_PAD_LINK_OK);

  mysinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");

  fail_unless (mysinkpad != NULL);

  gst_pad_set_chain_function (mysinkpad, interleave_chain_func);

  gst_pad_set_active (mysinkpad, TRUE);

  src = gst_element_get_static_pad (interleave, "src");

  fail_unless (src != NULL);

  fail_unless (gst_pad_link (src, mysinkpad) == GST_PAD_LINK_OK);

  gst_object_unref (src);

  bus = gst_bus_new ();

  gst_element_set_bus (interleave, bus);

  fail_unless (gst_element_set_state (interleave,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS);

  fail_unless (gst_element_set_state (queue,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS);

  input[0] = -1.0;

  inbuf = gst_buffer_new_and_alloc (48000 * sizeof (gfloat));

  //GST_BUFFER_PTS (inbuf) = 0;

  gst_buffer_map (inbuf, &map, GST_MAP_WRITE);

  indata = (gfloat *) map.data;

  for (i = 0; i < 48000; i++)

    indata[i] = -1.0;

  gst_buffer_unmap (inbuf, &map);

  fail_unless (gst_pad_push (mysrcpads[0], inbuf) == GST_FLOW_OK);

  input[1] = 1.0;

  inbuf = gst_buffer_new_and_alloc (48000 * sizeof (gfloat));

  //GST_BUFFER_PTS (inbuf) = 0;

  gst_buffer_map (inbuf, &map, GST_MAP_WRITE);

  indata = (gfloat *) map.data;

  for (i = 0; i < 48000; i++)

    indata[i] = 1.0;

  gst_buffer_unmap (inbuf, &map);

  fail_unless (gst_pad_push (mysrcpads[1], inbuf) == GST_FLOW_OK);

  inbuf = gst_buffer_new_and_alloc (48000 * sizeof (gfloat));

  //GST_BUFFER_PTS (inbuf) = GST_SECOND;

  gst_buffer_map (inbuf, &map, GST_MAP_WRITE);

  indata = (gfloat *) map.data;

  for (i = 0; i < 48000; i++)

    indata[i] = -1.0;

  gst_buffer_unmap (inbuf, &map);

  fail_unless (gst_pad_push (mysrcpads[0], inbuf) == GST_FLOW_OK);

  inbuf = gst_buffer_new_and_alloc (48000 * sizeof (gfloat));

  //GST_BUFFER_PTS (inbuf) = GST_SECOND;

  gst_buffer_map (inbuf, &map, GST_MAP_WRITE);

  indata = (gfloat *) map.data;

  for (i = 0; i < 48000; i++)

    indata[i] = 1.0;

  gst_buffer_unmap (inbuf, &map);

  fail_unless (gst_pad_push (mysrcpads[1], inbuf) == GST_FLOW_OK);

  g_mutex_lock (&data_mutex);

  while (have_data < 48000 * 2 * 2 * sizeof (float))

    g_cond_wait (&data_cond, &data_mutex);

  g_mutex_unlock (&data_mutex);

  gst_bus_set_flushing (bus, TRUE);

  gst_element_set_state (interleave, GST_STATE_NULL);

  gst_element_set_state (queue, GST_STATE_NULL);

  gst_object_unref (mysrcpads[0]);

  gst_object_unref (mysrcpads[1]);

  gst_object_unref (mysinkpad);

  gst_element_release_request_pad (interleave, sink0);

  gst_object_unref (sink0);

  gst_element_release_request_pad (interleave, sink1);

  gst_object_unref (sink1);

  gst_object_unref (interleave);

  gst_object_unref (queue);

  gst_object_unref (bus);

  gst_caps_unref (caps);

  g_free (mysrcpads);

}

GST_END_TEST;

GST_START_TEST (test_audiointerleave_2ch_1eos)

{

  GstElement *queue;

  GstPad *sink0, *sink1, *src, *tmp;

  GstCaps *caps;

  gint i;

  GstBuffer *inbuf;

  gfloat *indata;

  GstMapInfo map;

  mysrcpads = g_new0 (GstPad *, 2);

  have_data = 0;

  interleave = gst_element_factory_make ("audiointerleave", NULL);

  fail_unless (interleave != NULL);

  g_object_set (interleave, "latency", GST_SECOND / 4, NULL);

  queue = gst_element_factory_make ("queue", "queue");

  fail_unless (queue != NULL);

  sink0 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sink0 != NULL);

  fail_unless_equals_string (GST_OBJECT_NAME (sink0), "sink_0");

  sink1 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sink1 != NULL);

  fail_unless_equals_string (GST_OBJECT_NAME (sink1), "sink_1");

  mysrcpads[0] = gst_pad_new_from_static_template (&srctemplate, "src0");

  fail_unless (mysrcpads[0] != NULL);

  caps = gst_caps_from_string (CAPS_48khz);

  gst_pad_set_active (mysrcpads[0], TRUE);

  gst_check_setup_events_audiointerleave (mysrcpads[0], interleave, caps,

      GST_FORMAT_TIME, "0");

  gst_pad_use_fixed_caps (mysrcpads[0]);

  mysrcpads[1] = gst_pad_new_from_static_template (&srctemplate, "src1");

  fail_unless (mysrcpads[1] != NULL);

  gst_pad_set_active (mysrcpads[1], TRUE);

  gst_check_setup_events_audiointerleave (mysrcpads[1], interleave, caps,

      GST_FORMAT_TIME, "1");

  gst_pad_use_fixed_caps (mysrcpads[1]);

  tmp = gst_element_get_static_pad (queue, "sink");

  fail_unless (gst_pad_link (mysrcpads[0], tmp) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  tmp = gst_element_get_static_pad (queue, "src");

  fail_unless (gst_pad_link (tmp, sink0) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  fail_unless (gst_pad_link (mysrcpads[1], sink1) == GST_PAD_LINK_OK);

  mysinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");

  fail_unless (mysinkpad != NULL);

  gst_pad_set_chain_function (mysinkpad, interleave_chain_func);

  gst_pad_set_active (mysinkpad, TRUE);

  src = gst_element_get_static_pad (interleave, "src");

  fail_unless (src != NULL);

  fail_unless (gst_pad_link (src, mysinkpad) == GST_PAD_LINK_OK);

  gst_object_unref (src);

  bus = gst_bus_new ();

  gst_element_set_bus (interleave, bus);

  fail_unless (gst_element_set_state (interleave,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS);

  fail_unless (gst_element_set_state (queue,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS);

  input[0] = -1.0;

  inbuf = gst_buffer_new_and_alloc (48000 * sizeof (gfloat));

  GST_BUFFER_PTS (inbuf) = 0;

  gst_buffer_map (inbuf, &map, GST_MAP_WRITE);

  indata = (gfloat *) map.data;

  for (i = 0; i < 48000; i++)

    indata[i] = -1.0;

  gst_buffer_unmap (inbuf, &map);

  fail_unless (gst_pad_push (mysrcpads[0], inbuf) == GST_FLOW_OK);

  input[1] = 1.0;

  inbuf = gst_buffer_new_and_alloc (48000 * sizeof (gfloat));

  GST_BUFFER_PTS (inbuf) = 0;

  gst_buffer_map (inbuf, &map, GST_MAP_WRITE);

  indata = (gfloat *) map.data;

  for (i = 0; i < 48000; i++)

    indata[i] = 1.0;

  gst_buffer_unmap (inbuf, &map);

  fail_unless (gst_pad_push (mysrcpads[1], inbuf) == GST_FLOW_OK);

  g_mutex_lock (&data_mutex);

  /* 48000 samples per buffer * 2 sources * 2 buffers */

  while (have_data != 48000 * 2 * sizeof (float))

    g_cond_wait (&data_cond, &data_mutex);

  g_mutex_unlock (&data_mutex);

  input[0] = 0.0;

  gst_pad_push_event (mysrcpads[0], gst_event_new_eos ());

  input[1] = 1.0;

  inbuf = gst_buffer_new_and_alloc (48000 * sizeof (gfloat));

  GST_BUFFER_PTS (inbuf) = GST_SECOND;

  gst_buffer_map (inbuf, &map, GST_MAP_WRITE);

  indata = (gfloat *) map.data;

  for (i = 0; i < 48000; i++)

    indata[i] = 1.0;

  gst_buffer_unmap (inbuf, &map);

  fail_unless (gst_pad_push (mysrcpads[1], inbuf) == GST_FLOW_OK);

  g_mutex_lock (&data_mutex);

  /* 48000 samples per buffer * 2 sources * 2 buffers */

  while (have_data != 48000 * 2 * 2 * sizeof (float))

    g_cond_wait (&data_cond, &data_mutex);

  g_mutex_unlock (&data_mutex);

  gst_bus_set_flushing (bus, TRUE);

  gst_element_set_state (interleave, GST_STATE_NULL);

  gst_element_set_state (queue, GST_STATE_NULL);

  gst_object_unref (mysrcpads[0]);

  gst_object_unref (mysrcpads[1]);

  gst_object_unref (mysinkpad);

  gst_element_release_request_pad (interleave, sink0);

  gst_object_unref (sink0);

  gst_element_release_request_pad (interleave, sink1);

  gst_object_unref (sink1);

  gst_object_unref (interleave);

  gst_object_unref (queue);

  gst_object_unref (bus);

  gst_caps_unref (caps);

  g_free (mysrcpads);

}

GST_END_TEST;

static void

src_handoff_float32 (GstElement * element, GstBuffer * buffer, GstPad * pad,

    gboolean interleaved, gpointer user_data)

{

  gint n = GPOINTER_TO_INT (user_data);

  gfloat *data;

  gint i, num_samples;

  GstCaps *caps;

  guint64 mask;

  GstAudioChannelPosition pos;

  GstMapInfo map;

  fail_unless (gst_buffer_is_writable (buffer));

  switch (n) {

    case 0:

    case 1:

    case 2:

      pos = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;

      break;

    case 3:

      pos = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;

      break;

    default:

      pos = GST_AUDIO_CHANNEL_POSITION_INVALID;

      break;

  }

  mask = G_GUINT64_CONSTANT (1) << pos;

  caps = gst_caps_new_simple ("audio/x-raw",

      "format", G_TYPE_STRING, GST_AUDIO_NE (F32),

      "channels", G_TYPE_INT, 1,

      "layout", G_TYPE_STRING, interleaved ? "interleaved" : "non-interleaved",

      "channel-mask", GST_TYPE_BITMASK, mask, "rate", G_TYPE_INT, 48000, NULL);

  gst_pad_set_caps (pad, caps);

  gst_caps_unref (caps);

  fail_unless (gst_buffer_map (buffer, &map, GST_MAP_WRITE));

  fail_unless (map.size % sizeof (gfloat) == 0);

  fail_unless (map.size > 480);

  num_samples = map.size / sizeof (gfloat);

  data = (gfloat *) map.data;

  for (i = 0; i < num_samples; i++)

    data[i] = (n % 2 == 0) ? -1.0 : 1.0;

  gst_buffer_unmap (buffer, &map);

}

static void

src_handoff_float32_audiointerleaved (GstElement * element, GstBuffer * buffer,

    GstPad * pad, gpointer user_data)

{

  src_handoff_float32 (element, buffer, pad, TRUE, user_data);

}

static void

src_handoff_float32_non_audiointerleaved (GstElement * element,

    GstBuffer * buffer, GstPad * pad, gpointer user_data)

{

  src_handoff_float32 (element, buffer, pad, FALSE, user_data);

}

static void

sink_handoff_float32 (GstElement * element, GstBuffer * buffer, GstPad * pad,

    gpointer user_data)

{

  gint i;

  GstMapInfo map;

  gfloat *data;

  GstCaps *caps, *ccaps;

  gint n = GPOINTER_TO_INT (user_data);

  guint64 mask;

  fail_unless (GST_IS_BUFFER (buffer));

  gst_buffer_map (buffer, &map, GST_MAP_READ);

  data = (gfloat *) map.data;

  /* Give a little leeway for rounding errors */

  fail_unless (gst_util_uint64_scale (map.size, GST_SECOND,

          48000 * 2 * sizeof (gfloat)) <= GST_BUFFER_DURATION (buffer) + 1 ||

      gst_util_uint64_scale (map.size, GST_SECOND,

          48000 * 2 * sizeof (gfloat)) >= GST_BUFFER_DURATION (buffer) - 1);

  if (n == 0 || n == 3) {

    GstAudioChannelPosition pos[2] =

        { GST_AUDIO_CHANNEL_POSITION_NONE, GST_AUDIO_CHANNEL_POSITION_NONE };

    gst_audio_channel_positions_to_mask (pos, 2, FALSE, &mask);

  } else if (n == 1) {

    GstAudioChannelPosition pos[2] = { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,

      GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT

    };

    gst_audio_channel_positions_to_mask (pos, 2, FALSE, &mask);

  } else if (n == 2) {

    GstAudioChannelPosition pos[2] = { GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,

      GST_AUDIO_CHANNEL_POSITION_REAR_CENTER

    };

    gst_audio_channel_positions_to_mask (pos, 2, FALSE, &mask);

  } else {

    g_assert_not_reached ();

  }

  if (pad) {

    caps = gst_caps_new_simple ("audio/x-raw",

        "format", G_TYPE_STRING, GST_AUDIO_NE (F32),

        "channels", G_TYPE_INT, 2, "rate", G_TYPE_INT, 48000,

        "layout", G_TYPE_STRING, "interleaved",

        "channel-mask", GST_TYPE_BITMASK, mask, NULL);

    ccaps = gst_pad_get_current_caps (pad);

    fail_unless (gst_caps_is_equal (caps, ccaps));

    gst_caps_unref (ccaps);

    gst_caps_unref (caps);

  }

#ifdef HAVE_VALGRIND

  if (!(RUNNING_ON_VALGRIND))

#endif

    for (i = 0; i < map.size / sizeof (float); i += 2) {

      fail_unless_equals_float (data[i], -1.0);

      if (n != 3)

        fail_unless_equals_float (data[i + 1], 1.0);

    }

  have_data += map.size;

  gst_buffer_unmap (buffer, &map);

}

static void

test_audiointerleave_2ch_pipeline (gboolean interleaved)

{

  GstElement *pipeline, *queue, *src1, *src2, *interleave, *sink;

  GstPad *sinkpad0, *sinkpad1, *tmp, *tmp2;

  GstMessage *msg;

  void *src_handoff_float32 =

      interleaved ? &src_handoff_float32_audiointerleaved :

      &src_handoff_float32_non_audiointerleaved;

  have_data = 0;

  pipeline = (GstElement *) gst_pipeline_new ("pipeline");

  fail_unless (pipeline != NULL);

  src1 = gst_element_factory_make ("fakesrc", "src1");

  fail_unless (src1 != NULL);

  g_object_set (src1, "num-buffers", 4, NULL);

  g_object_set (src1, "sizetype", 2,

      "sizemax", (int) 48000 * sizeof (gfloat),

      "datarate", (int) 48000 * sizeof (gfloat), NULL);

  g_object_set (src1, "signal-handoffs", TRUE, NULL);

  g_object_set (src1, "format", GST_FORMAT_TIME, NULL);

  g_signal_connect (src1, "handoff", G_CALLBACK (src_handoff_float32),

      GINT_TO_POINTER (0));

  gst_bin_add (GST_BIN (pipeline), src1);

  src2 = gst_element_factory_make ("fakesrc", "src2");

  fail_unless (src2 != NULL);

  g_object_set (src2, "num-buffers", 4, NULL);

  g_object_set (src2, "sizetype", 2,

      "sizemax", (int) 48000 * sizeof (gfloat),

      "datarate", (int) 48000 * sizeof (gfloat), NULL);

  g_object_set (src2, "signal-handoffs", TRUE, NULL);

  g_object_set (src2, "format", GST_FORMAT_TIME, NULL);

  g_signal_connect (src2, "handoff", G_CALLBACK (src_handoff_float32),

      GINT_TO_POINTER (1));

  gst_bin_add (GST_BIN (pipeline), src2);

  queue = gst_element_factory_make ("queue", "queue");

  fail_unless (queue != NULL);

  gst_bin_add (GST_BIN (pipeline), queue);

  interleave = gst_element_factory_make ("audiointerleave", "audiointerleave");

  fail_unless (interleave != NULL);

  gst_bin_add (GST_BIN (pipeline), gst_object_ref (interleave));

  sinkpad0 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sinkpad0 != NULL);

  tmp = gst_element_get_static_pad (src1, "src");

  fail_unless (gst_pad_link (tmp, sinkpad0) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  sinkpad1 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sinkpad1 != NULL);

  tmp = gst_element_get_static_pad (src2, "src");

  tmp2 = gst_element_get_static_pad (queue, "sink");

  fail_unless (gst_pad_link (tmp, tmp2) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  gst_object_unref (tmp2);

  tmp = gst_element_get_static_pad (queue, "src");

  fail_unless (gst_pad_link (tmp, sinkpad1) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  sink = gst_element_factory_make ("fakesink", "sink");

  fail_unless (sink != NULL);

  g_object_set (sink, "signal-handoffs", TRUE, NULL);

  g_signal_connect (sink, "handoff", G_CALLBACK (sink_handoff_float32),

      GINT_TO_POINTER (0));

  gst_bin_add (GST_BIN (pipeline), sink);

  tmp = gst_element_get_static_pad (interleave, "src");

  tmp2 = gst_element_get_static_pad (sink, "sink");

  fail_unless (gst_pad_link (tmp, tmp2) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  gst_object_unref (tmp2);

  gst_element_set_state (pipeline, GST_STATE_PLAYING);

  msg = gst_bus_poll (GST_ELEMENT_BUS (pipeline), GST_MESSAGE_EOS, -1);

  gst_message_unref (msg);

  /* 48000 samples per buffer * 2 sources * 4 buffers */

  fail_unless (have_data == 48000 * 2 * 4 * sizeof (gfloat));

  gst_element_set_state (pipeline, GST_STATE_NULL);

  gst_element_release_request_pad (interleave, sinkpad0);

  gst_object_unref (sinkpad0);

  gst_element_release_request_pad (interleave, sinkpad1);

  gst_object_unref (sinkpad1);

  gst_object_unref (interleave);

  gst_object_unref (pipeline);

}

GST_START_TEST (test_audiointerleave_2ch_pipeline_audiointerleaved)

{

  test_audiointerleave_2ch_pipeline (TRUE);

}

GST_END_TEST;

GST_START_TEST (test_audiointerleave_2ch_pipeline_non_audiointerleaved)

{

  test_audiointerleave_2ch_pipeline (FALSE);

}

GST_END_TEST;

GST_START_TEST (test_audiointerleave_2ch_pipeline_input_chanpos)

{

  GstElement *pipeline, *queue, *src1, *src2, *interleave, *sink;

  GstPad *sinkpad0, *sinkpad1, *tmp, *tmp2;

  GstMessage *msg;

  have_data = 0;

  pipeline = (GstElement *) gst_pipeline_new ("pipeline");

  fail_unless (pipeline != NULL);

  src1 = gst_element_factory_make ("fakesrc", "src1");

  fail_unless (src1 != NULL);

  g_object_set (src1, "num-buffers", 4, NULL);

  g_object_set (src1, "sizetype", 2,

      "sizemax", (int) 48000 * sizeof (gfloat),

      "datarate", (int) 48000 * sizeof (gfloat), NULL);

  g_object_set (src1, "signal-handoffs", TRUE, NULL);

  g_object_set (src1, "format", GST_FORMAT_TIME, NULL);

  g_signal_connect (src1, "handoff",

      G_CALLBACK (src_handoff_float32_audiointerleaved), GINT_TO_POINTER (2));

  gst_bin_add (GST_BIN (pipeline), src1);

  src2 = gst_element_factory_make ("fakesrc", "src2");

  fail_unless (src2 != NULL);

  g_object_set (src2, "num-buffers", 4, NULL);

  g_object_set (src2, "sizetype", 2,

      "sizemax", (int) 48000 * sizeof (gfloat),

      "datarate", (int) 48000 * sizeof (gfloat), NULL);

  g_object_set (src2, "signal-handoffs", TRUE, NULL);

  g_object_set (src2, "format", GST_FORMAT_TIME, NULL);

  g_signal_connect (src2, "handoff",

      G_CALLBACK (src_handoff_float32_audiointerleaved), GINT_TO_POINTER (3));

  gst_bin_add (GST_BIN (pipeline), src2);

  queue = gst_element_factory_make ("queue", "queue");

  fail_unless (queue != NULL);

  gst_bin_add (GST_BIN (pipeline), queue);

  interleave = gst_element_factory_make ("audiointerleave", "audiointerleave");

  fail_unless (interleave != NULL);

  g_object_set (interleave, "channel-positions-from-input", TRUE, NULL);

  gst_bin_add (GST_BIN (pipeline), gst_object_ref (interleave));

  sinkpad0 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sinkpad0 != NULL);

  tmp = gst_element_get_static_pad (src1, "src");

  fail_unless (gst_pad_link (tmp, sinkpad0) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  sinkpad1 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sinkpad1 != NULL);

  tmp = gst_element_get_static_pad (src2, "src");

  tmp2 = gst_element_get_static_pad (queue, "sink");

  fail_unless (gst_pad_link (tmp, tmp2) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  gst_object_unref (tmp2);

  tmp = gst_element_get_static_pad (queue, "src");

  fail_unless (gst_pad_link (tmp, sinkpad1) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  sink = gst_element_factory_make ("fakesink", "sink");

  fail_unless (sink != NULL);

  g_object_set (sink, "signal-handoffs", TRUE, NULL);

  g_signal_connect (sink, "handoff", G_CALLBACK (sink_handoff_float32),

      GINT_TO_POINTER (1));

  gst_bin_add (GST_BIN (pipeline), sink);

  tmp = gst_element_get_static_pad (interleave, "src");

  tmp2 = gst_element_get_static_pad (sink, "sink");

  fail_unless (gst_pad_link (tmp, tmp2) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  gst_object_unref (tmp2);

  gst_element_set_state (pipeline, GST_STATE_PLAYING);

  msg = gst_bus_poll (GST_ELEMENT_BUS (pipeline), GST_MESSAGE_EOS, -1);

  gst_message_unref (msg);

  /* 48000 samples per buffer * 2 sources * 4 buffers */

  fail_unless (have_data == 48000 * 2 * 4 * sizeof (gfloat));

  gst_element_set_state (pipeline, GST_STATE_NULL);

  gst_element_release_request_pad (interleave, sinkpad0);

  gst_object_unref (sinkpad0);

  gst_element_release_request_pad (interleave, sinkpad1);

  gst_object_unref (sinkpad1);

  gst_object_unref (interleave);

  gst_object_unref (pipeline);

}

GST_END_TEST;

GST_START_TEST (test_audiointerleave_2ch_pipeline_custom_chanpos)

{

  GstElement *pipeline, *queue, *src1, *src2, *interleave, *sink;

  GstPad *sinkpad0, *sinkpad1, *tmp, *tmp2;

  GstMessage *msg;

  GValueArray *arr;

  GValue val = { 0, };

  have_data = 0;

  pipeline = (GstElement *) gst_pipeline_new ("pipeline");

  fail_unless (pipeline != NULL);

  src1 = gst_element_factory_make ("fakesrc", "src1");

  fail_unless (src1 != NULL);

  g_object_set (src1, "num-buffers", 4, NULL);

  g_object_set (src1, "signal-handoffs", TRUE, NULL);

  g_object_set (src1, "sizetype", 2,

      "sizemax", (int) 48000 * sizeof (gfloat),

      "datarate", (int) 48000 * sizeof (gfloat), NULL);

  g_object_set (src1, "format", GST_FORMAT_TIME, NULL);

  g_signal_connect (src1, "handoff",

      G_CALLBACK (src_handoff_float32_audiointerleaved), GINT_TO_POINTER (0));

  gst_bin_add (GST_BIN (pipeline), src1);

  src2 = gst_element_factory_make ("fakesrc", "src2");

  fail_unless (src2 != NULL);

  g_object_set (src2, "num-buffers", 4, NULL);

  g_object_set (src2, "signal-handoffs", TRUE, NULL);

  g_object_set (src2, "sizetype", 2,

      "sizemax", (int) 48000 * sizeof (gfloat),

      "datarate", (int) 48000 * sizeof (gfloat), NULL);

  g_object_set (src2, "format", GST_FORMAT_TIME, NULL);

  g_signal_connect (src2, "handoff",

      G_CALLBACK (src_handoff_float32_audiointerleaved), GINT_TO_POINTER (1));

  gst_bin_add (GST_BIN (pipeline), src2);

  queue = gst_element_factory_make ("queue", "queue");

  fail_unless (queue != NULL);

  gst_bin_add (GST_BIN (pipeline), queue);

  interleave = gst_element_factory_make ("audiointerleave", "audiointerleave");

  fail_unless (interleave != NULL);

  g_object_set (interleave, "channel-positions-from-input", FALSE, NULL);

  arr = g_value_array_new (2);

  g_value_init (&val, GST_TYPE_AUDIO_CHANNEL_POSITION);

  g_value_set_enum (&val, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER);

  g_value_array_append (arr, &val;;

  g_value_reset (&val;;

  g_value_set_enum (&val, GST_AUDIO_CHANNEL_POSITION_REAR_CENTER);

  g_value_array_append (arr, &val;;

  g_value_unset (&val;;

  g_object_set (interleave, "channel-positions", arr, NULL);

  g_value_array_free (arr);

  gst_bin_add (GST_BIN (pipeline), gst_object_ref (interleave));

  sinkpad0 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sinkpad0 != NULL);

  tmp = gst_element_get_static_pad (src1, "src");

  fail_unless (gst_pad_link (tmp, sinkpad0) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  sinkpad1 = gst_element_get_request_pad (interleave, "sink_%u");

  fail_unless (sinkpad1 != NULL);

  tmp = gst_element_get_static_pad (src2, "src");

  tmp2 = gst_element_get_static_pad (queue, "sink");

  fail_unless (gst_pad_link (tmp, tmp2) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  gst_object_unref (tmp2);

  tmp = gst_element_get_static_pad (queue, "src");

  fail_unless (gst_pad_link (tmp, sinkpad1) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  sink = gst_element_factory_make ("fakesink", "sink");

  fail_unless (sink != NULL);

  g_object_set (sink, "signal-handoffs", TRUE, NULL);

  g_signal_connect (sink, "handoff", G_CALLBACK (sink_handoff_float32),

      GINT_TO_POINTER (2));

  gst_bin_add (GST_BIN (pipeline), sink);

  tmp = gst_element_get_static_pad (interleave, "src");

  tmp2 = gst_element_get_static_pad (sink, "sink");

  fail_unless (gst_pad_link (tmp, tmp2) == GST_PAD_LINK_OK);

  gst_object_unref (tmp);

  gst_object_unref (tmp2);

  gst_element_set_state (pipeline, GST_STATE_PLAYING);

  msg = gst_bus_poll (GST_ELEMENT_BUS (pipeline), GST_MESSAGE_EOS, -1);

  gst_message_unref (msg);

  /* 48000 samples per buffer * 2 sources * 4 buffers */

  fail_unless (have_data == 48000 * 2 * 4 * sizeof (gfloat));

  gst_element_set_state (pipeline, GST_STATE_NULL);

  gst_element_release_request_pad (interleave, sinkpad0);

  gst_object_unref (sinkpad0);

  gst_element_release_request_pad (interleave, sinkpad1);

  gst_object_unref (sinkpad1);

  gst_object_unref (interleave);

  gst_object_unref (pipeline);

}

GST_END_TEST;

GST_START_TEST (test_audiointerleave_2ch_pipeline_no_chanpos)

{

  GstElement *pipeline, *queue, *src1, *src2, *interleave, *sink;

  GstPad *sinkpad0, *sinkpad1, *tmp, *tmp2;

  GstMessage *msg;