static int hb_opencl_device_is_supported(hb_opencl_device_t* device)
{
// we only support OpenCL on GPUs for now
// Ivy Bridge supports OpenCL on GPU, but it's too slow to be usable
// FIXME: disable on NVIDIA to to a bug
if ((device != NULL) &&
(device->type & CL_DEVICE_TYPE_GPU) &&
(device->ocl_vendor != HB_OCL_VENDOR_NVIDIA) &&
(device->ocl_vendor != HB_OCL_VENDOR_INTEL ||
hb_get_cpu_platform() != HB_CPU_PLATFORM_INTEL_IVB))
{
int major, minor;
// check OpenCL version:
// OpenCL<space><major_version.minor_version><space><vendor-specific information>
if (sscanf(device->version, "OpenCL %d.%d", &major, &minor) != 2)
{
return 0;
}
return (major > HB_OCL_MINVERSION_MAJOR) || (major == HB_OCL_MINVERSION_MAJOR &&
minor >= HB_OCL_MINVERSION_MINOR);
}
return 0;
}
int hb_qsv_info_init()
{
static int init_done = 0;
if (init_done)
return (hb_qsv_info == NULL);
init_done = 1;
hb_qsv_info = calloc(1, sizeof(*hb_qsv_info));
if (hb_qsv_info == NULL)
{
hb_error("hb_qsv_info_init: alloc failure");
return -1;
}
mfxSession session;
qsv_minimum_version.Major = HB_QSV_MINVERSION_MAJOR;
qsv_minimum_version.Minor = HB_QSV_MINVERSION_MINOR;
// check for software fallback
if (MFXInit(MFX_IMPL_SOFTWARE,
&qsv_minimum_version, &session) == MFX_ERR_NONE)
{
qsv_software_available = 1;
preferred_implementation = MFX_IMPL_SOFTWARE;
// our minimum is supported, but query the actual version
MFXQueryVersion(session, &qsv_software_version);
MFXClose(session);
}
// check for actual hardware support
if (MFXInit(MFX_IMPL_HARDWARE_ANY|MFX_IMPL_VIA_ANY,
&qsv_minimum_version, &session) == MFX_ERR_NONE)
{
qsv_hardware_available = 1;
preferred_implementation = MFX_IMPL_HARDWARE_ANY|MFX_IMPL_VIA_ANY;
// our minimum is supported, but query the actual version
MFXQueryVersion(session, &qsv_hardware_version);
MFXClose(session);
}
// check for version-specific or hardware-specific capabilities
// we only use software as a fallback, so check hardware first
if (qsv_hardware_available)
{
if (HB_CHECK_MFX_VERSION(qsv_hardware_version, 1, 6))
{
hb_qsv_info->capabilities |= HB_QSV_CAP_OPTION2_BRC;
hb_qsv_info->capabilities |= HB_QSV_CAP_MSDK_API_1_6;
}
if (hb_get_cpu_platform() == HB_CPU_PLATFORM_INTEL_HSW)
{
if (HB_CHECK_MFX_VERSION(qsv_hardware_version, 1, 7))
{
hb_qsv_info->capabilities |= HB_QSV_CAP_OPTION2_TRELLIS;
hb_qsv_info->capabilities |= HB_QSV_CAP_OPTION2_LOOKAHEAD;
}
hb_qsv_info->capabilities |= HB_QSV_CAP_H264_BPYRAMID;
}
}
else if (qsv_software_available)
{
if (HB_CHECK_MFX_VERSION(qsv_software_version, 1, 6))
{
hb_qsv_info->capabilities |= HB_QSV_CAP_MSDK_API_1_6;
hb_qsv_info->capabilities |= HB_QSV_CAP_H264_BPYRAMID;
}
}
// note: we pass a pointer to MFXInit but it never gets modified
// let's make sure of it just to be safe though
if (qsv_minimum_version.Major != HB_QSV_MINVERSION_MAJOR ||
qsv_minimum_version.Minor != HB_QSV_MINVERSION_MINOR)
{
hb_error("hb_qsv_info_init: minimum version (%d.%d) was modified",
qsv_minimum_version.Major,
qsv_minimum_version.Minor);
}
// success
return 0;
}
