static void aom_init_parameters()

in libheif/plugins/encoder_aom.cc [205:367]

• 148 lines of code
• 3 McCabe index (conditional complexity)

static void aom_init_parameters()
{
  struct heif_encoder_parameter* p = aom_encoder_params;
  const struct heif_encoder_parameter** d = aom_encoder_parameter_ptrs;
  int i = 0;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_realtime;
  p->type = heif_encoder_parameter_type_boolean;
  p->boolean.default_value = false;
  p->has_default = true;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_speed;
  p->type = heif_encoder_parameter_type_integer;
  p->integer.default_value = 6;
  p->has_default = true;
  p->integer.have_minimum_maximum = true;
  p->integer.minimum = 0;
  if (aom_codec_version_major() >= 3) {
    p->integer.maximum = 9;
  }
  else {
    p->integer.maximum = 8;
  }
  p->integer.valid_values = NULL;
  p->integer.num_valid_values = 0;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_threads;
  p->type = heif_encoder_parameter_type_integer;
  p->has_default = true;
  p->integer.have_minimum_maximum = true;
  p->integer.minimum = 1;
  p->integer.maximum = 64;
  int threads = static_cast<int>(std::thread::hardware_concurrency());
  if (threads == 0) {
    // Could not autodetect, use previous default value.
    threads = 4;
  }
  threads = std::min(threads, p->integer.maximum);
  p->integer.default_value = threads;
  p->integer.valid_values = NULL;
  p->integer.num_valid_values = 0;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = heif_encoder_parameter_name_quality;
  p->type = heif_encoder_parameter_type_integer;
  p->integer.default_value = 50;
  p->has_default = true;
  p->integer.have_minimum_maximum = true;
  p->integer.minimum = 0;
  p->integer.maximum = 100;
  p->integer.valid_values = NULL;
  p->integer.num_valid_values = 0;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = heif_encoder_parameter_name_lossless;
  p->type = heif_encoder_parameter_type_boolean;
  p->boolean.default_value = false;
  p->has_default = true;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_chroma;
  p->type = heif_encoder_parameter_type_string;
  p->string.default_value = "420";
  p->has_default = true;
  p->string.valid_values = kParam_chroma_valid_values;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_tune;
  p->type = heif_encoder_parameter_type_string;
  p->string.default_value = "ssim";
  p->has_default = true;
  p->string.valid_values = kParam_tune_valid_values;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_min_q;
  p->type = heif_encoder_parameter_type_integer;
  p->integer.default_value = 0;
  p->has_default = true;
  p->integer.have_minimum_maximum = true;
  p->integer.minimum = 0;
  p->integer.maximum = 63;
  p->integer.valid_values = NULL;
  p->integer.num_valid_values = 0;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_max_q;
  p->type = heif_encoder_parameter_type_integer;
  p->integer.default_value = 63;
  p->has_default = true;
  p->integer.have_minimum_maximum = true;
  p->integer.minimum = 0;
  p->integer.maximum = 63;
  p->integer.valid_values = NULL;
  p->integer.num_valid_values = 0;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_alpha_quality;
  p->type = heif_encoder_parameter_type_integer;
  p->has_default = false;
  p->integer.have_minimum_maximum = true;
  p->integer.minimum = 0;
  p->integer.maximum = 100;
  p->integer.valid_values = NULL;
  p->integer.num_valid_values = 0;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_alpha_min_q;
  p->type = heif_encoder_parameter_type_integer;
  p->has_default = false;
  p->integer.have_minimum_maximum = true;
  p->integer.minimum = 0;
  p->integer.maximum = 63;
  p->integer.valid_values = NULL;
  p->integer.num_valid_values = 0;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_alpha_max_q;
  p->type = heif_encoder_parameter_type_integer;
  p->has_default = false;
  p->integer.have_minimum_maximum = true;
  p->integer.minimum = 0;
  p->integer.maximum = 63;
  p->integer.valid_values = NULL;
  p->integer.num_valid_values = 0;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS);
  p->version = 2;
  p->name = kParam_lossless_alpha;
  p->type = heif_encoder_parameter_type_boolean;
  p->boolean.default_value = false;
  p->has_default = true;
  d[i++] = p++;

  assert(i < MAX_NPARAMETERS + 1);
  d[i++] = nullptr;
}