gstreamer/sys/wasapi2/gstwasapi2util.c

/*
 * Copyright (C) 2008 Ole André Vadla Ravnås <ole.andre.ravnas@tandberg.com>
 * Copyright (C) 2018 Centricular Ltd.
 *   Author: Nirbheek Chauhan <nirbheek@centricular.com>
 * Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
 *
 * 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 "gstwasapi2util.h"
#include <audioclient.h>

GST_DEBUG_CATEGORY_EXTERN (gst_wasapi2_debug);
#define GST_CAT_DEFAULT gst_wasapi2_debug

/* *INDENT-OFF* */
static struct
{
  guint64 wasapi_pos;
  GstAudioChannelPosition gst_pos;
} wasapi_to_gst_pos[] = {
  {SPEAKER_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT},
  {SPEAKER_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT},
  {SPEAKER_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER},
  {SPEAKER_LOW_FREQUENCY, GST_AUDIO_CHANNEL_POSITION_LFE1},
  {SPEAKER_BACK_LEFT, GST_AUDIO_CHANNEL_POSITION_REAR_LEFT},
  {SPEAKER_BACK_RIGHT, GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT},
  {SPEAKER_FRONT_LEFT_OF_CENTER,
      GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER},
  {SPEAKER_FRONT_RIGHT_OF_CENTER,
      GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER},
  {SPEAKER_BACK_CENTER, GST_AUDIO_CHANNEL_POSITION_REAR_CENTER},
  /* Enum values diverge from this point onwards */
  {SPEAKER_SIDE_LEFT, GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT},
  {SPEAKER_SIDE_RIGHT, GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT},
  {SPEAKER_TOP_CENTER, GST_AUDIO_CHANNEL_POSITION_TOP_CENTER},
  {SPEAKER_TOP_FRONT_LEFT, GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_LEFT},
  {SPEAKER_TOP_FRONT_CENTER, GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_CENTER},
  {SPEAKER_TOP_FRONT_RIGHT, GST_AUDIO_CHANNEL_POSITION_TOP_FRONT_RIGHT},
  {SPEAKER_TOP_BACK_LEFT, GST_AUDIO_CHANNEL_POSITION_TOP_REAR_LEFT},
  {SPEAKER_TOP_BACK_CENTER, GST_AUDIO_CHANNEL_POSITION_TOP_REAR_CENTER},
  {SPEAKER_TOP_BACK_RIGHT, GST_AUDIO_CHANNEL_POSITION_TOP_REAR_RIGHT}
};
/* *INDENT-ON* */

static const gchar *
hresult_to_string_fallback (HRESULT hr)
{
  const gchar *s = "unknown error";

  switch (hr) {
    case AUDCLNT_E_NOT_INITIALIZED:
      s = "AUDCLNT_E_NOT_INITIALIZED";
      break;
    case AUDCLNT_E_ALREADY_INITIALIZED:
      s = "AUDCLNT_E_ALREADY_INITIALIZED";
      break;
    case AUDCLNT_E_WRONG_ENDPOINT_TYPE:
      s = "AUDCLNT_E_WRONG_ENDPOINT_TYPE";
      break;
    case AUDCLNT_E_DEVICE_INVALIDATED:
      s = "AUDCLNT_E_DEVICE_INVALIDATED";
      break;
    case AUDCLNT_E_NOT_STOPPED:
      s = "AUDCLNT_E_NOT_STOPPED";
      break;
    case AUDCLNT_E_BUFFER_TOO_LARGE:
      s = "AUDCLNT_E_BUFFER_TOO_LARGE";
      break;
    case AUDCLNT_E_OUT_OF_ORDER:
      s = "AUDCLNT_E_OUT_OF_ORDER";
      break;
    case AUDCLNT_E_UNSUPPORTED_FORMAT:
      s = "AUDCLNT_E_UNSUPPORTED_FORMAT";
      break;
    case AUDCLNT_E_INVALID_DEVICE_PERIOD:
      s = "AUDCLNT_E_INVALID_DEVICE_PERIOD";
      break;
    case AUDCLNT_E_INVALID_SIZE:
      s = "AUDCLNT_E_INVALID_SIZE";
      break;
    case AUDCLNT_E_DEVICE_IN_USE:
      s = "AUDCLNT_E_DEVICE_IN_USE";
      break;
    case AUDCLNT_E_BUFFER_OPERATION_PENDING:
      s = "AUDCLNT_E_BUFFER_OPERATION_PENDING";
      break;
    case AUDCLNT_E_BUFFER_SIZE_ERROR:
      s = "AUDCLNT_E_BUFFER_SIZE_ERROR";
      break;
    case AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED:
      s = "AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED";
      break;
    case AUDCLNT_E_THREAD_NOT_REGISTERED:
      s = "AUDCLNT_E_THREAD_NOT_REGISTERED";
      break;
    case AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED:
      s = "AUDCLNT_E_EXCLUSIVE_MODE_NOT_ALLOWED";
      break;
    case AUDCLNT_E_ENDPOINT_CREATE_FAILED:
      s = "AUDCLNT_E_ENDPOINT_CREATE_FAILED";
      break;
    case AUDCLNT_E_SERVICE_NOT_RUNNING:
      s = "AUDCLNT_E_SERVICE_NOT_RUNNING";
      break;
    case AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED:
      s = "AUDCLNT_E_EVENTHANDLE_NOT_EXPECTED";
      break;
    case AUDCLNT_E_EXCLUSIVE_MODE_ONLY:
      s = "AUDCLNT_E_EXCLUSIVE_MODE_ONLY";
      break;
    case AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL:
      s = "AUDCLNT_E_BUFDURATION_PERIOD_NOT_EQUAL";
      break;
    case AUDCLNT_E_EVENTHANDLE_NOT_SET:
      s = "AUDCLNT_E_EVENTHANDLE_NOT_SET";
      break;
    case AUDCLNT_E_INCORRECT_BUFFER_SIZE:
      s = "AUDCLNT_E_INCORRECT_BUFFER_SIZE";
      break;
    case AUDCLNT_E_CPUUSAGE_EXCEEDED:
      s = "AUDCLNT_E_CPUUSAGE_EXCEEDED";
      break;
    case AUDCLNT_S_BUFFER_EMPTY:
      s = "AUDCLNT_S_BUFFER_EMPTY";
      break;
    case AUDCLNT_S_THREAD_ALREADY_REGISTERED:
      s = "AUDCLNT_S_THREAD_ALREADY_REGISTERED";
      break;
    case AUDCLNT_S_POSITION_STALLED:
      s = "AUDCLNT_S_POSITION_STALLED";
      break;
    case E_POINTER:
      s = "E_POINTER";
      break;
    case E_INVALIDARG:
      s = "E_INVALIDARG";
      break;
  }

  return s;
}

static gchar *
gst_wasapi2_util_hresult_to_string (HRESULT hr)
{
  DWORD flags;
  gchar *ret_text;
  LPTSTR error_text = NULL;

  flags = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER
      | FORMAT_MESSAGE_IGNORE_INSERTS;
  FormatMessage (flags, NULL, hr, MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT),
      (LPTSTR) & error_text, 0, NULL);

  /* If we couldn't get the error msg, try the fallback switch statement */
  if (error_text == NULL)
    return g_strdup (hresult_to_string_fallback (hr));

#ifdef UNICODE
  /* If UNICODE is defined, LPTSTR is LPWSTR which is UTF-16 */
  ret_text = g_utf16_to_utf8 (error_text, 0, NULL, NULL, NULL);
#else
  ret_text = g_strdup (error_text);
#endif

  LocalFree (error_text);
  return ret_text;
}

gboolean
_gst_wasapi2_result (HRESULT hr, GstDebugCategory * cat, const gchar * file,
    const gchar * function, gint line)
{
#ifndef GST_DISABLE_GST_DEBUG
  gboolean ret = TRUE;

  if (FAILED (hr)) {
    gchar *error_text = NULL;

    error_text = gst_wasapi2_util_hresult_to_string (hr);
    gst_debug_log (cat, GST_LEVEL_WARNING, file, function, line,
        NULL, "WASAPI call failed: 0x%x, %s", (guint) hr, error_text);
    g_free (error_text);

    ret = FALSE;
  }

  return ret;
#else
  return SUCCEEDED (hr);
#endif
}