	case V4L2_PIX_FMT_RGB332: return "8-bit RGB 3-3-2";
	case V4L2_PIX_FMT_RGB444: return "16-bit A/XRGB 4-4-4-4";
	case V4L2_PIX_FMT_ARGB444: return "16-bit ARGB 4-4-4-4";
	case V4L2_PIX_FMT_XRGB444: return "16-bit XRGB 4-4-4-4";
	case V4L2_PIX_FMT_RGBA444: return "16-bit RGBA 4-4-4-4";
	case V4L2_PIX_FMT_RGBX444: return "16-bit RGBX 4-4-4-4";
	case V4L2_PIX_FMT_ABGR444: return "16-bit ABGR 4-4-4-4";
	case V4L2_PIX_FMT_XBGR444: return "16-bit XBGR 4-4-4-4";
	case V4L2_PIX_FMT_BGRA444: return "16-bit BGRA 4-4-4-4";
	case V4L2_PIX_FMT_BGRX444: return "16-bit BGRX 4-4-4-4";
	case V4L2_PIX_FMT_RGB555: return "16-bit A/XRGB 1-5-5-5";
	case V4L2_PIX_FMT_ARGB555: return "16-bit ARGB 1-5-5-5";
	case V4L2_PIX_FMT_XRGB555: return "16-bit XRGB 1-5-5-5";
	case V4L2_PIX_FMT_ABGR555: return "16-bit ABGR 1-5-5-5";
	case V4L2_PIX_FMT_XBGR555: return "16-bit XBGR 1-5-5-5";
	case V4L2_PIX_FMT_RGBA555: return "16-bit RGBA 5-5-5-1";
	case V4L2_PIX_FMT_RGBX555: return "16-bit RGBX 5-5-5-1";
	case V4L2_PIX_FMT_BGRA555: return "16-bit BGRA 5-5-5-1";
	case V4L2_PIX_FMT_BGRX555: return "16-bit BGRX 5-5-5-1";
	case V4L2_PIX_FMT_RGB565: return "16-bit RGB 5-6-5";
	case V4L2_PIX_FMT_RGB555X: return "16-bit A/XRGB 1-5-5-5 BE";
	case V4L2_PIX_FMT_ARGB555X: return "16-bit ARGB 1-5-5-5 BE";
	case V4L2_PIX_FMT_XRGB555X: return "16-bit XRGB 1-5-5-5 BE";
	case V4L2_PIX_FMT_RGB565X: return "16-bit RGB 5-6-5 BE";
	case V4L2_PIX_FMT_BGR666: return "18-bit BGRX 6-6-6-14";
	case V4L2_PIX_FMT_BGR24: return "24-bit BGR 8-8-8";
	case V4L2_PIX_FMT_RGB24: return "24-bit RGB 8-8-8";
	case V4L2_PIX_FMT_BGR32: return "32-bit BGRA/X 8-8-8-8";
	case V4L2_PIX_FMT_ABGR32: return "32-bit BGRA 8-8-8-8";
	case V4L2_PIX_FMT_XBGR32: return "32-bit BGRX 8-8-8-8";
	case V4L2_PIX_FMT_RGB32: return "32-bit A/XRGB 8-8-8-8";
	case V4L2_PIX_FMT_ARGB32: return "32-bit ARGB 8-8-8-8";
	case V4L2_PIX_FMT_XRGB32: return "32-bit XRGB 8-8-8-8";
	case V4L2_PIX_FMT_BGRA32: return "32-bit ABGR 8-8-8-8";
	case V4L2_PIX_FMT_BGRX32: return "32-bit XBGR 8-8-8-8";
	case V4L2_PIX_FMT_RGBA32: return "32-bit RGBA 8-8-8-8";
	case V4L2_PIX_FMT_RGBX32: return "32-bit RGBX 8-8-8-8";
	case V4L2_PIX_FMT_GREY: return "8-bit Greyscale";
	case V4L2_PIX_FMT_Y4: return "4-bit Greyscale";
	case V4L2_PIX_FMT_Y6: return "6-bit Greyscale";
	case V4L2_PIX_FMT_Y10: return "10-bit Greyscale";
	case V4L2_PIX_FMT_Y12: return "12-bit Greyscale";
	case V4L2_PIX_FMT_Y14: return "14-bit Greyscale";
	case V4L2_PIX_FMT_Y16: return "16-bit Greyscale";
	case V4L2_PIX_FMT_Y16_BE: return "16-bit Greyscale BE";
	case V4L2_PIX_FMT_Y10BPACK: return "10-bit Greyscale (Packed)";
	case V4L2_PIX_FMT_Y10P: return "10-bit Greyscale (MIPI Packed)";
	case V4L2_PIX_FMT_Y8I: return "Interleaved 8-bit Greyscale";
	case V4L2_PIX_FMT_Y12I: return "Interleaved 12-bit Greyscale";
	case V4L2_PIX_FMT_Z16: return "16-bit Depth";
	case V4L2_PIX_FMT_INZI: return "Planar 10:16 Greyscale Depth";
	case V4L2_PIX_FMT_CNF4: return "4-bit Depth Confidence (Packed)";
	case V4L2_PIX_FMT_PAL8: return "8-bit Palette";
	case V4L2_PIX_FMT_UV8: return "8-bit Chrominance UV 4-4";
	case V4L2_PIX_FMT_YVU410: return "Planar YVU 4:1:0";
	case V4L2_PIX_FMT_YVU420: return "Planar YVU 4:2:0";
	case V4L2_PIX_FMT_YUYV: return "YUYV 4:2:2";
	case V4L2_PIX_FMT_YYUV: return "YYUV 4:2:2";
	case V4L2_PIX_FMT_YVYU: return "YVYU 4:2:2";
	case V4L2_PIX_FMT_UYVY: return "UYVY 4:2:2";
	case V4L2_PIX_FMT_VYUY: return "VYUY 4:2:2";
	case V4L2_PIX_FMT_YUV422P: return "Planar YUV 4:2:2";
	case V4L2_PIX_FMT_YUV411P: return "Planar YUV 4:1:1";
	case V4L2_PIX_FMT_Y41P: return "YUV 4:1:1 (Packed)";
	case V4L2_PIX_FMT_YUV444: return "16-bit A/XYUV 4-4-4-4";
	case V4L2_PIX_FMT_YUV555: return "16-bit A/XYUV 1-5-5-5";
	case V4L2_PIX_FMT_YUV565: return "16-bit YUV 5-6-5";
	case V4L2_PIX_FMT_YUV24: return "24-bit YUV 4:4:4 8-8-8";
	case V4L2_PIX_FMT_YUV32: return "32-bit A/XYUV 8-8-8-8";
	case V4L2_PIX_FMT_AYUV32: return "32-bit AYUV 8-8-8-8";
	case V4L2_PIX_FMT_XYUV32: return "32-bit XYUV 8-8-8-8";
	case V4L2_PIX_FMT_VUYA32: return "32-bit VUYA 8-8-8-8";
	case V4L2_PIX_FMT_VUYX32: return "32-bit VUYX 8-8-8-8";
	case V4L2_PIX_FMT_YUV410: return "Planar YUV 4:1:0";
	case V4L2_PIX_FMT_YUV420: return "Planar YUV 4:2:0";
	case V4L2_PIX_FMT_HI240: return "8-bit Dithered RGB (BTTV)";
	case V4L2_PIX_FMT_HM12: return "YUV 4:2:0 (16x16 Macroblocks)";
	case V4L2_PIX_FMT_M420: return "YUV 4:2:0 (M420)";
	case V4L2_PIX_FMT_NV12: return "Y/CbCr 4:2:0";
	case V4L2_PIX_FMT_NV21: return "Y/CrCb 4:2:0";
	case V4L2_PIX_FMT_NV16: return "Y/CbCr 4:2:2";
	case V4L2_PIX_FMT_NV61: return "Y/CrCb 4:2:2";
	case V4L2_PIX_FMT_NV24: return "Y/CbCr 4:4:4";
	case V4L2_PIX_FMT_NV42: return "Y/CrCb 4:4:4";
	case V4L2_PIX_FMT_NV12M: return "Y/CbCr 4:2:0 (N-C)";
	case V4L2_PIX_FMT_NV21M: return "Y/CrCb 4:2:0 (N-C)";
	case V4L2_PIX_FMT_NV16M: return "Y/CbCr 4:2:2 (N-C)";
	case V4L2_PIX_FMT_NV61M: return "Y/CrCb 4:2:2 (N-C)";
	case V4L2_PIX_FMT_NV12MT: return "Y/CbCr 4:2:0 (64x32 MB, N-C)";
	case V4L2_PIX_FMT_NV12MT_16X16: return "Y/CbCr 4:2:0 (16x16 MB, N-C)";
	case V4L2_PIX_FMT_YUV420M: return "Planar YUV 4:2:0 (N-C)";
	case V4L2_PIX_FMT_YVU420M: return "Planar YVU 4:2:0 (N-C)";
	case V4L2_PIX_FMT_YUV422M: return "Planar YUV 4:2:2 (N-C)";
	case V4L2_PIX_FMT_YVU422M: return "Planar YVU 4:2:2 (N-C)";
	case V4L2_PIX_FMT_YUV444M: return "Planar YUV 4:4:4 (N-C)";
	case V4L2_PIX_FMT_YVU444M: return "Planar YVU 4:4:4 (N-C)";
	case V4L2_PIX_FMT_SBGGR8: return "8-bit Bayer BGBG/GRGR";
	case V4L2_PIX_FMT_SGBRG8: return "8-bit Bayer GBGB/RGRG";
	case V4L2_PIX_FMT_SGRBG8: return "8-bit Bayer GRGR/BGBG";
	case V4L2_PIX_FMT_SRGGB8: return "8-bit Bayer RGRG/GBGB";
	case V4L2_PIX_FMT_SBGGR10: return "10-bit Bayer BGBG/GRGR";
	case V4L2_PIX_FMT_SGBRG10: return "10-bit Bayer GBGB/RGRG";
	case V4L2_PIX_FMT_SGRBG10: return "10-bit Bayer GRGR/BGBG";
	case V4L2_PIX_FMT_SRGGB10: return "10-bit Bayer RGRG/GBGB";
	case V4L2_PIX_FMT_SBGGR10P: return "10-bit Bayer BGBG/GRGR Packed";
	case V4L2_PIX_FMT_SGBRG10P: return "10-bit Bayer GBGB/RGRG Packed";
	case V4L2_PIX_FMT_SGRBG10P: return "10-bit Bayer GRGR/BGBG Packed";
	case V4L2_PIX_FMT_SRGGB10P: return "10-bit Bayer RGRG/GBGB Packed";
	case V4L2_PIX_FMT_IPU3_SBGGR10: return "10-bit bayer BGGR IPU3 Packed";
	case V4L2_PIX_FMT_IPU3_SGBRG10: return "10-bit bayer GBRG IPU3 Packed";
	case V4L2_PIX_FMT_IPU3_SGRBG10: return "10-bit bayer GRBG IPU3 Packed";
	case V4L2_PIX_FMT_IPU3_SRGGB10: return "10-bit bayer RGGB IPU3 Packed";
	case V4L2_PIX_FMT_SBGGR10ALAW8: return "8-bit Bayer BGBG/GRGR (A-law)";
	case V4L2_PIX_FMT_SGBRG10ALAW8: return "8-bit Bayer GBGB/RGRG (A-law)";
	case V4L2_PIX_FMT_SGRBG10ALAW8: return "8-bit Bayer GRGR/BGBG (A-law)";
	case V4L2_PIX_FMT_SRGGB10ALAW8: return "8-bit Bayer RGRG/GBGB (A-law)";
	case V4L2_PIX_FMT_SBGGR10DPCM8: return "8-bit Bayer BGBG/GRGR (DPCM)";
	case V4L2_PIX_FMT_SGBRG10DPCM8: return "8-bit Bayer GBGB/RGRG (DPCM)";
	case V4L2_PIX_FMT_SGRBG10DPCM8: return "8-bit Bayer GRGR/BGBG (DPCM)";
	case V4L2_PIX_FMT_SRGGB10DPCM8: return "8-bit Bayer RGRG/GBGB (DPCM)";
	case V4L2_PIX_FMT_SBGGR12: return "12-bit Bayer BGBG/GRGR";
	case V4L2_PIX_FMT_SGBRG12: return "12-bit Bayer GBGB/RGRG";
	case V4L2_PIX_FMT_SGRBG12: return "12-bit Bayer GRGR/BGBG";
	case V4L2_PIX_FMT_SRGGB12: return "12-bit Bayer RGRG/GBGB";
	case V4L2_PIX_FMT_SBGGR12P: return "12-bit Bayer BGBG/GRGR Packed";
	case V4L2_PIX_FMT_SGBRG12P: return "12-bit Bayer GBGB/RGRG Packed";
	case V4L2_PIX_FMT_SGRBG12P: return "12-bit Bayer GRGR/BGBG Packed";
	case V4L2_PIX_FMT_SRGGB12P: return "12-bit Bayer RGRG/GBGB Packed";
	case V4L2_PIX_FMT_SBGGR14: return "14-bit Bayer BGBG/GRGR";
	case V4L2_PIX_FMT_SGBRG14: return "14-bit Bayer GBGB/RGRG";
	case V4L2_PIX_FMT_SGRBG14: return "14-bit Bayer GRGR/BGBG";
	case V4L2_PIX_FMT_SRGGB14: return "14-bit Bayer RGRG/GBGB";
	case V4L2_PIX_FMT_SBGGR14P: return "14-bit Bayer BGBG/GRGR Packed";
	case V4L2_PIX_FMT_SGBRG14P: return "14-bit Bayer GBGB/RGRG Packed";
	case V4L2_PIX_FMT_SGRBG14P: return "14-bit Bayer GRGR/BGBG Packed";
	case V4L2_PIX_FMT_SRGGB14P: return "14-bit Bayer RGRG/GBGB Packed";
	case V4L2_PIX_FMT_SBGGR16: return "16-bit Bayer BGBG/GRGR";
	case V4L2_PIX_FMT_SGBRG16: return "16-bit Bayer GBGB/RGRG";
	case V4L2_PIX_FMT_SGRBG16: return "16-bit Bayer GRGR/BGBG";
	case V4L2_PIX_FMT_SRGGB16: return "16-bit Bayer RGRG/GBGB";
	case V4L2_PIX_FMT_SN9C20X_I420: return "GSPCA SN9C20X I420";
	case V4L2_PIX_FMT_SPCA501: return "GSPCA SPCA501";
	case V4L2_PIX_FMT_SPCA505: return "GSPCA SPCA505";
	case V4L2_PIX_FMT_SPCA508: return "GSPCA SPCA508";
	case V4L2_PIX_FMT_STV0680: return "GSPCA STV0680";
	case V4L2_PIX_FMT_TM6000: return "A/V + VBI Mux Packet";
	case V4L2_PIX_FMT_CIT_YYVYUY: return "GSPCA CIT YYVYUY";
	case V4L2_PIX_FMT_KONICA420: return "GSPCA KONICA420";
	case V4L2_PIX_FMT_HSV24: return "24-bit HSV 8-8-8";
	case V4L2_PIX_FMT_HSV32: return "32-bit XHSV 8-8-8-8";
	case V4L2_SDR_FMT_CU8: return "Complex U8";
	case V4L2_SDR_FMT_CU16LE: return "Complex U16LE";
	case V4L2_SDR_FMT_CS8: return "Complex S8";
	case V4L2_SDR_FMT_CS14LE: return "Complex S14LE";
	case V4L2_SDR_FMT_RU12LE: return "Real U12LE";
	case V4L2_SDR_FMT_PCU16BE: return "Planar Complex U16BE";
	case V4L2_SDR_FMT_PCU18BE: return "Planar Complex U18BE";
	case V4L2_SDR_FMT_PCU20BE: return "Planar Complex U20BE";
	case V4L2_TCH_FMT_DELTA_TD16: return "16-bit Signed Deltas";
	case V4L2_TCH_FMT_DELTA_TD08: return "8-bit Signed Deltas";
	case V4L2_TCH_FMT_TU16: return "16-bit Unsigned Touch Data";
	case V4L2_TCH_FMT_TU08: return "8-bit Unsigned Touch Data";
	case V4L2_META_FMT_VSP1_HGO: return "R-Car VSP1 1-D Histogram";
	case V4L2_META_FMT_VSP1_HGT: return "R-Car VSP1 2-D Histogram";
	case V4L2_META_FMT_UVC: return "UVC Payload Header Metadata";
	case V4L2_META_FMT_D4XX: return "Intel D4xx UVC Metadata";
	case V4L2_META_FMT_VIVID: return "Vivid Metadata";
	case V4L2_META_FMT_RK_ISP1_PARAMS: return "Rockchip ISP1 3A Parameters";
	case V4L2_META_FMT_RK_ISP1_STAT_3A: return "Rockchip ISP1 3A Statistics";
	case V4L2_PIX_FMT_MJPEG: return "Motion-JPEG";
	case V4L2_PIX_FMT_JPEG: return "JFIF JPEG";
	case V4L2_PIX_FMT_DV: return "1394";
	case V4L2_PIX_FMT_MPEG: return "MPEG-1/2/4";
	case V4L2_PIX_FMT_H264: return "H.264";
	case V4L2_PIX_FMT_H264_NO_SC: return "H.264 (No Start Codes)";
	case V4L2_PIX_FMT_H264_MVC: return "H.264 MVC";
	case V4L2_PIX_FMT_H264_SLICE: return "H.264 Parsed Slice Data";
	case V4L2_PIX_FMT_H263: return "H.263";
	case V4L2_PIX_FMT_MPEG1: return "MPEG-1 ES";
	case V4L2_PIX_FMT_MPEG2: return "MPEG-2 ES";
	case V4L2_PIX_FMT_MPEG2_SLICE: return "MPEG-2 Parsed Slice Data";
	case V4L2_PIX_FMT_MPEG4: return "MPEG-4 Part 2 ES";
	case V4L2_PIX_FMT_XVID: return "Xvid";
	case V4L2_PIX_FMT_VC1_ANNEX_G: return "VC-1 (SMPTE 412M Annex G)";
	case V4L2_PIX_FMT_VC1_ANNEX_L: return "VC-1 (SMPTE 412M Annex L)";
	case V4L2_PIX_FMT_VP8: return "VP8";
	case V4L2_PIX_FMT_VP9: return "VP9";
	case V4L2_PIX_FMT_HEVC: return "HEVC";
	case V4L2_PIX_FMT_FWHT: return "FWHT";
	case V4L2_PIX_FMT_FWHT_STATELESS: return "FWHT Stateless";
	case V4L2_PIX_FMT_CPIA1: return "GSPCA CPiA YUV";
	case V4L2_PIX_FMT_WNVA: return "WNVA";
	case V4L2_PIX_FMT_SN9C10X: return "GSPCA SN9C10X";
	case V4L2_PIX_FMT_PWC1: return "Raw Philips Webcam Type (Old)";
	case V4L2_PIX_FMT_PWC2: return "Raw Philips Webcam Type (New)";
	case V4L2_PIX_FMT_ET61X251: return "GSPCA ET61X251";
	case V4L2_PIX_FMT_SPCA561: return "GSPCA SPCA561";
	case V4L2_PIX_FMT_PAC207: return "GSPCA PAC207";
	case V4L2_PIX_FMT_MR97310A: return "GSPCA MR97310A";
	case V4L2_PIX_FMT_JL2005BCD: return "GSPCA JL2005BCD";
	case V4L2_PIX_FMT_SN9C2028: return "GSPCA SN9C2028";
	case V4L2_PIX_FMT_SQ905C: return "GSPCA SQ905C";
	case V4L2_PIX_FMT_PJPG: return "GSPCA PJPG";
	case V4L2_PIX_FMT_OV511: return "GSPCA OV511";
	case V4L2_PIX_FMT_OV518: return "GSPCA OV518";
	case V4L2_PIX_FMT_JPGL: return "JPEG Lite";
	case V4L2_PIX_FMT_SE401: return "GSPCA SE401";
	case V4L2_PIX_FMT_S5C_UYVY_JPG: return "S5C73MX interleaved UYVY/JPEG";
	case V4L2_PIX_FMT_MT21C: return "Mediatek Compressed Format";
	case V4L2_PIX_FMT_SUNXI_TILED_NV12: return "Sunxi Tiled NV12 Format";
