/* GStreamer

 *

 * unit test for audioconvert

 *

 * Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>

 * 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/audio/audio.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, *mysinkpad;

#define FORMATS "{ F32LE, F32BE, F64LE, F64BE, " \

                  "S32LE, S32BE, U32LE, U32BE, " \

                  "S24LE, S24BE, U24LE, U24BE, " \

                  "S16LE, S16BE, U16LE, U16BE, " \

                  "S8, U8 } "

#define CONVERT_CAPS_TEMPLATE_STRING    \

  "audio/x-raw, " \

    "format = (string) "FORMATS", " \

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

    "channels = (int) [ 1, MAX ]"

/* takes over reference for outcaps */

static GstElement *

setup_audioconvert (GstCaps * outcaps)

{

  GstPadTemplate *sinktemplate;

  static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",

      GST_PAD_SRC,

      GST_PAD_ALWAYS,

      GST_STATIC_CAPS (CONVERT_CAPS_TEMPLATE_STRING)

      );

  GstElement *audioconvert;

  sinktemplate =

      gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, outcaps);

  GST_DEBUG ("setup_audioconvert with caps %" GST_PTR_FORMAT, outcaps);

  audioconvert = gst_check_setup_element ("audioconvert");

  g_object_set (G_OBJECT (audioconvert), "dithering", 0, NULL);

  g_object_set (G_OBJECT (audioconvert), "noise-shaping", 0, NULL);

  mysrcpad = gst_check_setup_src_pad (audioconvert, &srctemplate);

  mysinkpad =

      gst_check_setup_sink_pad_from_template (audioconvert, sinktemplate);

  /* this installs a getcaps func that will always return the caps we set

   * later */

  gst_pad_use_fixed_caps (mysinkpad);

  gst_pad_set_active (mysrcpad, TRUE);

  gst_pad_set_active (mysinkpad, TRUE);

  gst_object_unref (sinktemplate);

  return audioconvert;

}

static void

cleanup_audioconvert (GstElement * audioconvert)

{

  GST_DEBUG ("cleanup_audioconvert");

  gst_pad_set_active (mysrcpad, FALSE);

  gst_pad_set_active (mysinkpad, FALSE);

  gst_check_teardown_src_pad (audioconvert);

  gst_check_teardown_sink_pad (audioconvert);

  gst_check_teardown_element (audioconvert);

}

/* returns a newly allocated caps */

static GstCaps *

get_int_caps (guint channels, gint endianness, guint width,

    guint depth, gboolean signedness)

{

  GstCaps *caps;

  GstAudioFormat fmt;

  GstAudioInfo info;

  g_assert (channels <= 2);

  GST_DEBUG ("channels:%d, endianness:%d, width:%d, depth:%d, signedness:%d",

      channels, endianness, width, depth, signedness);

  fmt = gst_audio_format_build_integer (signedness, endianness, width, depth);

  gst_audio_info_init (&info;;

  gst_audio_info_set_format (&info, fmt, GST_AUDIO_DEF_RATE, channels, NULL);

  caps = gst_audio_info_to_caps (&info;;

  fail_unless (caps != NULL);

  GST_DEBUG ("returning caps %" GST_PTR_FORMAT, caps);

  return caps;

}

static GstAudioFormat

get_float_format (gint endianness, gint width)

{

  if (endianness == G_LITTLE_ENDIAN) {

    if (width == 32)

      return GST_AUDIO_FORMAT_F32LE;

    else

      return GST_AUDIO_FORMAT_F64LE;

  } else {

    if (width == 32)

      return GST_AUDIO_FORMAT_F32BE;

    else

      return GST_AUDIO_FORMAT_F64BE;

  }

}

/* returns a newly allocated caps */

static GstCaps *

get_float_caps (guint channels, gint endianness, guint width)

{

  GstCaps *caps;

  GstAudioInfo info;

  g_assert (channels <= 2);

  gst_audio_info_init (&info;;

  gst_audio_info_set_format (&info, get_float_format (endianness, width),

      GST_AUDIO_DEF_RATE, channels, NULL);

  caps = gst_audio_info_to_caps (&info;;

  fail_unless (caps != NULL);

  GST_DEBUG ("returning caps %" GST_PTR_FORMAT, caps);

  return caps;

}

/* Copied from vorbis; the particular values used don't matter */

static GstAudioChannelPosition channelpositions[][6] = {

  {                             /* Mono */

      GST_AUDIO_CHANNEL_POSITION_MONO},

  {                             /* Stereo */

        GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,

      GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT},

  {                             /* Stereo + Centre */

        GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,

        GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,

      GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER},

  {                             /* Quadraphonic */

        GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,

        GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,

        GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,

        GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,

      },

  {                             /* Stereo + Centre + rear stereo */

        GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,

        GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,

        GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,

        GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,

        GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,

      },

  {                             /* Full 5.1 Surround */

        GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,

        GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT,

        GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER,

        GST_AUDIO_CHANNEL_POSITION_LFE1,

        GST_AUDIO_CHANNEL_POSITION_REAR_LEFT,

        GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT,

      }

};

/* we get this when recording from a soundcard with lots of input channels */

static GstAudioChannelPosition undefined_positions[][15] = {

  {

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE},

  {

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

        GST_AUDIO_CHANNEL_POSITION_NONE,

      GST_AUDIO_CHANNEL_POSITION_NONE}

};

/* For channels > 2, caps have to have channel positions. This adds some simple

 * ones. Only implemented for channels between 1 and 6.

 */

static GstCaps *

get_float_mc_caps (guint channels, gint endianness, guint width,

    const GstAudioChannelPosition * position)

{

  GstCaps *caps;

  GstAudioInfo info;

  gst_audio_info_init (&info;;

  if (position) {

    gst_audio_info_set_format (&info, get_float_format (endianness, width),

        GST_AUDIO_DEF_RATE, channels, position);

  } else if (channels <= 6) {

    gst_audio_info_set_format (&info, get_float_format (endianness, width),

        GST_AUDIO_DEF_RATE, channels, channelpositions[channels - 1]);

  } else {

    GstAudioChannelPosition pos[64];

    gint i;

    for (i = 0; i < 64; i++)

      pos[i] = GST_AUDIO_CHANNEL_POSITION_NONE;

    gst_audio_info_set_format (&info, get_float_format (endianness, width),

        GST_AUDIO_DEF_RATE, channels, pos);

  }

  caps = gst_audio_info_to_caps (&info;;

  fail_unless (caps != NULL);

  GST_DEBUG ("returning caps %" GST_PTR_FORMAT, caps);

  return caps;

}

static GstCaps *

get_int_mc_caps (guint channels, gint endianness, guint width,

    guint depth, gboolean signedness, const GstAudioChannelPosition * position)

{

  GstCaps *caps;

  GstAudioFormat fmt;

  GstAudioInfo info;

  fmt = gst_audio_format_build_integer (signedness, endianness, width, depth);

  gst_audio_info_init (&info;;

  if (position) {

    gst_audio_info_set_format (&info, fmt, GST_AUDIO_DEF_RATE, channels,

        position);

  } else if (channels <= 6) {

    gst_audio_info_set_format (&info, fmt, GST_AUDIO_DEF_RATE, channels,

        channelpositions[channels - 1]);

  } else {

    GstAudioChannelPosition pos[64];

    gint i;

    for (i = 0; i < 64; i++)

      pos[i] = GST_AUDIO_CHANNEL_POSITION_NONE;

    gst_audio_info_set_format (&info, fmt, GST_AUDIO_DEF_RATE, channels, pos);

  }

  caps = gst_audio_info_to_caps (&info;;

  fail_unless (caps != NULL);

  GST_DEBUG ("returning caps %" GST_PTR_FORMAT, caps);

  return caps;

}

/* eats the refs to the caps */

static void

verify_convert (const gchar * which, void *in, int inlength,

    GstCaps * incaps, void *out, int outlength, GstCaps * outcaps,

    GstFlowReturn expected_flow, gboolean in_place_allowed)

{

  GstBuffer *inbuffer, *outbuffer;

  GstElement *audioconvert;

  GST_DEBUG ("verifying conversion %s", which);

  GST_DEBUG ("incaps: %" GST_PTR_FORMAT, incaps);

  GST_DEBUG ("outcaps: %" GST_PTR_FORMAT, outcaps);

  ASSERT_CAPS_REFCOUNT (incaps, "incaps", 1);

  ASSERT_CAPS_REFCOUNT (outcaps, "outcaps", 1);

  audioconvert = setup_audioconvert (outcaps);

  ASSERT_CAPS_REFCOUNT (outcaps, "outcaps", 2);

  fail_unless (gst_element_set_state (audioconvert,

          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,

      "could not set to playing");

  gst_check_setup_events (mysrcpad, audioconvert, incaps, GST_FORMAT_TIME);

  GST_DEBUG ("Creating buffer of %d bytes", inlength);

  inbuffer = gst_buffer_new_and_alloc (inlength);

  gst_buffer_fill (inbuffer, 0, in, inlength);

  ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

  if (!in_place_allowed) {

    /* take extra ref to force processing */

    gst_buffer_ref (inbuffer);

    gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (audioconvert),

        FALSE);

  }

  /* pushing gives away my reference ... */

  GST_DEBUG ("push it");

  fail_unless_equals_int (gst_pad_push (mysrcpad, inbuffer), expected_flow);

  GST_DEBUG ("pushed it");

  if (expected_flow != GST_FLOW_OK)

    goto done;

  /* ... and puts a new buffer on the global list */

  fail_unless (g_list_length (buffers) == 1);

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

  if (!in_place_allowed) {

    /* release extra ref */

    gst_buffer_unref (inbuffer);

  }

  ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);

  fail_unless_equals_int (gst_buffer_get_size (outbuffer), outlength);

  gst_check_buffer_data (outbuffer, out, outlength);

  /* make sure that the channel positions are not lost */

  {

    GstStructure *in_s, *out_s;

    gint out_chans;

    GstCaps *ccaps;

    in_s = gst_caps_get_structure (incaps, 0);

    ccaps = gst_pad_get_current_caps (mysinkpad);

    out_s = gst_caps_get_structure (ccaps, 0);

    fail_unless (gst_structure_get_int (out_s, "channels", &out_chans));

    /* positions for 1 and 2 channels are implicit if not provided */

    if (out_chans > 2 && gst_structure_has_field (in_s, "channel-mask")) {

      if (!gst_structure_has_field (out_s, "channel-mask")) {

        gst_printerrln ("In  : %" GST_PTR_FORMAT, in_s);

        gst_printerrln ("Out : %" GST_PTR_FORMAT, out_s);

        g_error ("Channel layout got lost somewhere\n");

      }

    }

    gst_caps_unref (ccaps);

  }

  buffers = g_list_remove (buffers, outbuffer);

  gst_buffer_unref (outbuffer);

done:

  fail_unless (gst_element_set_state (audioconvert,

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

  /* cleanup */

  GST_DEBUG ("cleanup audioconvert");

  cleanup_audioconvert (audioconvert);

  GST_DEBUG ("cleanup, unref incaps");

  gst_caps_unref (incaps);

  gst_caps_unref (outcaps);

}

#define RUN_CONVERSION(which, inarray, in_get_caps, outarray, out_get_caps)    \

  verify_convert (which, inarray, sizeof (inarray),                            \

        in_get_caps, outarray, sizeof (outarray), out_get_caps, GST_FLOW_OK,   \

        TRUE)

#define RUN_CONVERSION_TO_FAIL(which, inarray, in_caps, outarray, out_caps)    \

  verify_convert (which, inarray, sizeof (inarray),                            \

        in_caps, outarray, sizeof (outarray), out_caps,                        \

        GST_FLOW_NOT_NEGOTIATED, TRUE)

#define RUN_CONVERSION_NOT_INPLACE(which, inarray, in_get_caps, outarray, out_get_caps)    \

  verify_convert (which, inarray, sizeof (inarray),                            \

        in_get_caps, outarray, sizeof (outarray), out_get_caps, GST_FLOW_OK,   \

        FALSE)

GST_START_TEST (test_int16)

{

  /* stereo to mono */

  {

    gint16 in[] = { 16384, -256, 1024, 1024 };

    gint16 out[] = { 8064, 1024 };

    RUN_CONVERSION ("int16 stereo to mono",

        in, get_int_caps (2, G_BYTE_ORDER, 16, 16, TRUE),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE));

  }

  /* mono to stereo */

  {

    gint16 in[] = { 512, 1024 };

    gint16 out[] = { 512, 512, 1024, 1024 };

    RUN_CONVERSION ("int16 mono to stereo",

        in, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE),

        out, get_int_caps (2, G_BYTE_ORDER, 16, 16, TRUE));

  }

  /* signed -> unsigned */

  {

    gint16 in[] = { 0, -32767, 32767, -32768 };

    guint16 out[] = { 32768, 1, 65535, 0 };

    RUN_CONVERSION ("int16 signed to unsigned",

        in, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, FALSE));

    RUN_CONVERSION ("int16 unsigned to signed",

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, FALSE),

        in, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE));

  }

}

GST_END_TEST;

GST_START_TEST (test_float32)

{

  /* stereo to mono */

  {

    gfloat in[] = { 0.6, -0.0078125, 0.03125, 0.03125 };

    gfloat out[] = { 0.29609375, 0.03125 };

    RUN_CONVERSION ("float32 stereo to mono",

        in, get_float_caps (2, G_BYTE_ORDER, 32),

        out, get_float_caps (1, G_BYTE_ORDER, 32));

  }

  /* mono to stereo */

  {

    gfloat in[] = { 0.015625, 0.03125 };

    gfloat out[] = { 0.015625, 0.015625, 0.03125, 0.03125 };

    RUN_CONVERSION ("float32 mono to stereo",

        in, get_float_caps (1, G_BYTE_ORDER, 32),

        out, get_float_caps (2, G_BYTE_ORDER, 32));

  }

}

GST_END_TEST;

GST_START_TEST (test_int_conversion)

{

  /* 8 <-> 16 signed */

  /* NOTE: if audioconvert was doing dithering we'd have a problem */

  {

    gint8 in[] = { 0, 1, 2, 127, -127 };

    gint16 out[] = { 0, 256, 512, 32512, -32512 };

    RUN_CONVERSION ("int 8bit to 16bit signed",

        in, get_int_caps (1, G_BYTE_ORDER, 8, 8, TRUE),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE)

        );

    RUN_CONVERSION ("int 16bit signed to 8bit",

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE),

        in, get_int_caps (1, G_BYTE_ORDER, 8, 8, TRUE)

        );

  }

  /* 16 -> 8 signed */

  {

    gint16 in[] = { 0, 127, 128, 256, 256 + 127, 256 + 128 };

    gint8 out[] = { 0, 0, 1, 1, 1, 2 };

    RUN_CONVERSION ("16 bit to 8 signed",

        in, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE),

        out, get_int_caps (1, G_BYTE_ORDER, 8, 8, TRUE)

        );

  }

  /* 8 unsigned <-> 16 signed */

  /* NOTE: if audioconvert was doing dithering we'd have a problem */

  {

    guint8 in[] = { 128, 129, 130, 255, 1 };

    gint16 out[] = { 0, 256, 512, 32512, -32512 };

    GstCaps *incaps, *outcaps;

    /* exploded for easier valgrinding */

    incaps = get_int_caps (1, G_BYTE_ORDER, 8, 8, FALSE);

    outcaps = get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE);

    GST_DEBUG ("incaps: %" GST_PTR_FORMAT, incaps);

    GST_DEBUG ("outcaps: %" GST_PTR_FORMAT, outcaps);

    RUN_CONVERSION ("8 unsigned to 16 signed", in, incaps, out, outcaps);

    RUN_CONVERSION ("16 signed to 8 unsigned", out, get_int_caps (1,

            G_BYTE_ORDER, 16, 16, TRUE), in, get_int_caps (1, G_BYTE_ORDER, 8,

            8, FALSE)

        );

  }

  /* 8 <-> 24 signed */

  /* NOTE: if audioconvert was doing dithering we'd have a problem */

  {

    gint8 in[] = { 0, 1, 127 };

    guint8 out[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x7f };

    /* out has the bytes in little-endian, so that's how they should be

     * interpreted during conversion */

    RUN_CONVERSION ("8 to 24 signed", in, get_int_caps (1, G_BYTE_ORDER, 8, 8,

            TRUE), out, get_int_caps (1, G_LITTLE_ENDIAN, 24, 24, TRUE)

        );

    RUN_CONVERSION ("24 signed to 8", out, get_int_caps (1, G_LITTLE_ENDIAN, 24,

            24, TRUE), in, get_int_caps (1, G_BYTE_ORDER, 8, 8, TRUE)

        );

  }

  /* 16 bit signed <-> unsigned */

  {

    gint16 in[] = { 0, 128, -128 };

    guint16 out[] = { 32768, 32896, 32640 };

    RUN_CONVERSION ("16 signed to 16 unsigned",

        in, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, FALSE)

        );

    RUN_CONVERSION ("16 unsigned to 16 signed",

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, FALSE),

        in, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE)

        );

  }

  /* 32 bit signed -> 16 bit signed for rounding check */

  /* NOTE: if audioconvert was doing dithering we'd have a problem */

  {

    gint32 in[] = { 0, G_MININT32, G_MAXINT32,

      (32 << 16), (32 << 16) + (1 << 15), (32 << 16) - (1 << 15),

      (32 << 16) + (2 << 15), (32 << 16) - (2 << 15),

      (-(32 << 16)) + (1 << 15), (-(32 << 16)) - (1 << 15),

      (-(32 << 16)) + (2 << 15), (-(32 << 16)) - (2 << 15),

      (-(32 << 16))

    };

    gint16 out[] = { 0, G_MININT16, G_MAXINT16,

      32, 33, 32,

      33, 31,

      -31, -32,

      -31, -33,

      -32

    };

    RUN_CONVERSION ("32 signed to 16 signed for rounding",

        in, get_int_caps (1, G_BYTE_ORDER, 32, 32, TRUE),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE)

        );

  }

  /* 32 bit signed -> 16 bit unsigned for rounding check */

  /* NOTE: if audioconvert was doing dithering we'd have a problem */

  {

    gint32 in[] = { 0, G_MININT32, G_MAXINT32,

      (32 << 16), (32 << 16) + (1 << 15), (32 << 16) - (1 << 15),

      (32 << 16) + (2 << 15), (32 << 16) - (2 << 15),

      (-(32 << 16)) + (1 << 15), (-(32 << 16)) - (1 << 15),

      (-(32 << 16)) + (2 << 15), (-(32 << 16)) - (2 << 15),

      (-(32 << 16))

    };

    guint16 out[] = { (1 << 15), 0, G_MAXUINT16,

      (1 << 15) + 32, (1 << 15) + 33, (1 << 15) + 32,

      (1 << 15) + 33, (1 << 15) + 31,

      (1 << 15) - 31, (1 << 15) - 32,

      (1 << 15) - 31, (1 << 15) - 33,

      (1 << 15) - 32

    };

    RUN_CONVERSION ("32 signed to 16 unsigned for rounding",

        in, get_int_caps (1, G_BYTE_ORDER, 32, 32, TRUE),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, FALSE)

        );

  }

}

GST_END_TEST;

GST_START_TEST (test_float_conversion)

{

  /* 64-bit float <-> 32-bit float */

  {

    gdouble in[] = { 0.0, 1.0, -1.0, 0.5, -0.5 };

    gfloat out[] = { 0.0, 1.0, -1.0, 0.5, -0.5 };

    RUN_CONVERSION ("64 float to 32 float",

        in, get_float_caps (1, G_BYTE_ORDER, 64),

        out, get_float_caps (1, G_BYTE_ORDER, 32));

    RUN_CONVERSION ("32 float to 64 float",

        out, get_float_caps (1, G_BYTE_ORDER, 32),

        in, get_float_caps (1, G_BYTE_ORDER, 64));

  }

  /* 32-bit float little endian <-> big endian */

  {

    gfloat le[] = { GFLOAT_TO_LE (0.0), GFLOAT_TO_LE (1.0), GFLOAT_TO_LE (-1.0),

      GFLOAT_TO_LE (0.5), GFLOAT_TO_LE (-0.5)

    };

    gfloat be[] = { GFLOAT_TO_BE (0.0), GFLOAT_TO_BE (1.0), GFLOAT_TO_BE (-1.0),

      GFLOAT_TO_BE (0.5), GFLOAT_TO_BE (-0.5)

    };

    RUN_CONVERSION ("32 float LE to BE",

        le, get_float_caps (1, G_LITTLE_ENDIAN, 32),

        be, get_float_caps (1, G_BIG_ENDIAN, 32));

    RUN_CONVERSION ("32 float BE to LE",

        be, get_float_caps (1, G_BIG_ENDIAN, 32),

        le, get_float_caps (1, G_LITTLE_ENDIAN, 32));

  }

  /* 64-bit float little endian <-> big endian */

  {

    gdouble le[] =

        { GDOUBLE_TO_LE (0.0), GDOUBLE_TO_LE (1.0), GDOUBLE_TO_LE (-1.0),

      GDOUBLE_TO_LE (0.5), GDOUBLE_TO_LE (-0.5)

    };

    gdouble be[] =

        { GDOUBLE_TO_BE (0.0), GDOUBLE_TO_BE (1.0), GDOUBLE_TO_BE (-1.0),

      GDOUBLE_TO_BE (0.5), GDOUBLE_TO_BE (-0.5)

    };

    RUN_CONVERSION ("64 float LE to BE",

        le, get_float_caps (1, G_LITTLE_ENDIAN, 64),

        be, get_float_caps (1, G_BIG_ENDIAN, 64));

    RUN_CONVERSION ("64 float BE to LE",

        be, get_float_caps (1, G_BIG_ENDIAN, 64),

        le, get_float_caps (1, G_LITTLE_ENDIAN, 64));

  }

}

GST_END_TEST;

GST_START_TEST (test_int_float_conversion)

{

  /* 32 float <-> 16 signed */

  /* NOTE: if audioconvert was doing dithering we'd have a problem */

  {

    gfloat in_le[] =

        { GFLOAT_TO_LE (0.0), GFLOAT_TO_LE (1.0), GFLOAT_TO_LE (-1.0),

      GFLOAT_TO_LE (0.5), GFLOAT_TO_LE (-0.5), GFLOAT_TO_LE (1.1),

      GFLOAT_TO_LE (-1.1)

    };

    gfloat in_be[] =

        { GFLOAT_TO_BE (0.0), GFLOAT_TO_BE (1.0), GFLOAT_TO_BE (-1.0),

      GFLOAT_TO_BE (0.5), GFLOAT_TO_BE (-0.5), GFLOAT_TO_BE (1.1),

      GFLOAT_TO_BE (-1.1)

    };

    gint16 out[] = { 0, 32767, -32768, 16384, -16384, 32767, -32768 };

    /* only one direction conversion, the other direction does

     * not produce exactly the same as the input due to floating

     * point rounding errors etc. */

    RUN_CONVERSION ("32 float le to 16 signed",

        in_le, get_float_caps (1, G_LITTLE_ENDIAN, 32),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE));

    RUN_CONVERSION ("32 float be to 16 signed",

        in_be, get_float_caps (1, G_BIG_ENDIAN, 32),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE));

  }

  {

    gint16 in[] = { 0, -32768, 16384, -16384 };

    gfloat out[] = { 0.0, -1.0, 0.5, -0.5 };

    RUN_CONVERSION ("16 signed to 32 float",

        in, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE),

        out, get_float_caps (1, G_BYTE_ORDER, 32));

  }

  /* 64 float <-> 16 signed */

  /* NOTE: if audioconvert was doing dithering we'd have a problem */

  {

    gdouble in_le[] =

        { GDOUBLE_TO_LE (0.0), GDOUBLE_TO_LE (1.0), GDOUBLE_TO_LE (-1.0),

      GDOUBLE_TO_LE (0.5), GDOUBLE_TO_LE (-0.5), GDOUBLE_TO_LE (1.1),

      GDOUBLE_TO_LE (-1.1)

    };

    gdouble in_be[] =

        { GDOUBLE_TO_BE (0.0), GDOUBLE_TO_BE (1.0), GDOUBLE_TO_BE (-1.0),

      GDOUBLE_TO_BE (0.5), GDOUBLE_TO_BE (-0.5), GDOUBLE_TO_BE (1.1),

      GDOUBLE_TO_BE (-1.1)

    };

    gint16 out[] = { 0, 32767, -32768, 16384, -16384, 32767, -32768 };

    /* only one direction conversion, the other direction does

     * not produce exactly the same as the input due to floating

     * point rounding errors etc. */

    RUN_CONVERSION ("64 float LE to 16 signed",

        in_le, get_float_caps (1, G_LITTLE_ENDIAN, 64),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE));

    RUN_CONVERSION ("64 float BE to 16 signed",

        in_be, get_float_caps (1, G_BIG_ENDIAN, 64),

        out, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE));

  }

  {

    gint16 in[] = { 0, -32768, 16384, -16384 };

    gdouble out[] = { 0.0,

      (gdouble) (-(G_GINT64_CONSTANT (32768) << 16)) / 2147483648.0,    /* ~ -1.0 */

      (gdouble) (16384L << 16) / 2147483648.0,  /* ~  0.5 */

      (gdouble) (-(16384L << 16)) / 2147483648.0,       /* ~ -0.5 */

    };

    RUN_CONVERSION ("16 signed to 64 float",

        in, get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE),

        out, get_float_caps (1, G_BYTE_ORDER, 64));

  }

  {

    gint32 in[] =

        { 0, (-(G_GINT64_CONSTANT (1) << 31)), (1L << 30), (-(1L << 30)) };

    gdouble out[] = { 0.0,

      (gdouble) (-(G_GINT64_CONSTANT (1) << 31)) / 2147483648.0,        /* ~ -1.0 */

      (gdouble) (1L << 30) / 2147483648.0,      /* ~  0.5 */

      (gdouble) (-(1L << 30)) / 2147483648.0,   /* ~ -0.5 */

    };

    RUN_CONVERSION ("32 signed to 64 float",

        in, get_int_caps (1, G_BYTE_ORDER, 32, 32, TRUE),

        out, get_float_caps (1, G_BYTE_ORDER, 64));

  }

}

GST_END_TEST;

GST_START_TEST (test_multichannel_conversion)

{

  {

    gfloat in[] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };

    gfloat out[] = { 0.0, 0.0 };

    RUN_CONVERSION ("3 channels to 1", in, get_float_mc_caps (3,

            G_BYTE_ORDER, 32, NULL), out, get_float_caps (1, G_BYTE_ORDER, 32));

    RUN_CONVERSION ("1 channels to 3", out, get_float_caps (1, G_BYTE_ORDER,

            32), in, get_float_mc_caps (3, G_BYTE_ORDER, 32, NULL));

  }

  {

    gint16 in[] = { 0, 0, 0, 0, 0, 0 };

    gint16 out[] = { 0, 0 };

    RUN_CONVERSION ("3 channels to 1", in, get_int_mc_caps (3,

            G_BYTE_ORDER, 16, 16, TRUE, NULL), out,

        get_int_caps (1, G_BYTE_ORDER, 16, 16, TRUE));

    RUN_CONVERSION ("1 channels to 3", out, get_int_caps (1, G_BYTE_ORDER, 16,

            16, TRUE), in, get_int_mc_caps (3, G_BYTE_ORDER, 16, 16, TRUE,

            NULL));

  }

  {

    gint16 in[] = { 1, 2 };

    gint16 out[] = { 1, 1, 2, 2 };

    GstAudioChannelPosition in_layout[1] = { GST_AUDIO_CHANNEL_POSITION_MONO };

    GstAudioChannelPosition out_layout[2] =

        { GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,

      GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT

    };

    GstCaps *in_caps =

        get_int_mc_caps (1, G_BYTE_ORDER, 16, 16, TRUE, in_layout);

    GstCaps *out_caps =

        get_int_mc_caps (2, G_BYTE_ORDER, 16, 16, TRUE, out_layout);