static enum AVHWDeviceType hw_device_match_type_by_hwaccel(enum HWAccelID hwaccel_id) { int i; if (hwaccel_id == HWACCEL_NONE) return AV_HWDEVICE_TYPE_NONE; for (i = 0; hwaccels[i].name; i++) { if (hwaccels[i].id == hwaccel_id) return hwaccels[i].device_type; } return AV_HWDEVICE_TYPE_NONE; }