in drivers/media/v4l2-core/v4l2-ioctl.c [1114:1377]
static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
{
const unsigned sz = sizeof(fmt->description);
const char *descr = NULL;
u32 flags = 0;
/*
* We depart from the normal coding style here since the descriptions
* should be aligned so it is easy to see which descriptions will be
* longer than 31 characters (the max length for a description).
* And frankly, this is easier to read anyway.
*
* Note that gcc will use O(log N) comparisons to find the right case.
*/
switch (fmt->pixelformat) {
/* Max description length mask: descr = "0123456789012345678901234567890" */
case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break;
case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break;
case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break;
case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break;
case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break;
case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break;
case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break;
case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break;
case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break;
case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break;
case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break;
case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break;
case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break;
case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break;
case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break;
case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break;
case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break;
case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break;
case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break;
case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break;
case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break;
case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break;
case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break;
case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break;
case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break;
case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break;
case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break;
case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break;
case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break;
case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break;
case V4L2_PIX_FMT_YUV422P: descr = "Planar YVU 4:2:2"; break;
case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break;
case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break;
case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break;
case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break;
case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break;
case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break;
case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break;
case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break;
case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break;
case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break;
case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break;
case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break;
case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break;
case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break;
case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break;
case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break;
case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break;
case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break;
case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break;
case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break;
case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break;
case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break;
case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break;
case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break;
case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break;
case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break;
case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break;
case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break;
case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break;
case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break;
case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break;
case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break;
case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break;
case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break;
case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break;
case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break;
case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break;
case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break;
case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break;
case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break;
case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break;
case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR (Exp.)"; break;
case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break;
case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break;
case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break;
case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break;
case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break;
case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break;
case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break;
case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break;
case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break;
case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break;
case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break;
case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break;
case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break;
case V4L2_PIX_FMT_NV12_UBWC:
descr = "NV12 UBWC"; break;
case V4L2_PIX_FMT_RGBA8888_UBWC:
descr = "RGBA8888 UBWC"; break;
case V4L2_PIX_FMT_SDE_ABGR_8888:
descr = "32-bit ABGR 8-8-8-8"; break;
case V4L2_PIX_FMT_SDE_RGBA_8888:
descr = "32-bit RGBA 8-8-8-8"; break;
case V4L2_PIX_FMT_SDE_RGBX_8888:
descr = "32-bit RGBX 8-8-8-8"; break;
case V4L2_PIX_FMT_SDE_XBGR_8888:
descr = "32-bit XBGR 8-8-8-8"; break;
case V4L2_PIX_FMT_SDE_RGBA_5551:
descr = "16-bit RGBA 5-5-5-1"; break;
case V4L2_PIX_FMT_SDE_ABGR_1555:
descr = "16-bit ABGR 1-5-5-5"; break;
case V4L2_PIX_FMT_SDE_BGRA_5551:
descr = "16-bit BGRA 5-5-5-1"; break;
case V4L2_PIX_FMT_SDE_BGRX_5551:
descr = "16-bit BGRX 5-5-5-1"; break;
case V4L2_PIX_FMT_SDE_RGBX_5551:
descr = "16-bit RGBX 5-5-5-1"; break;
case V4L2_PIX_FMT_SDE_XBGR_1555:
descr = "16-bit XBGR 1-5-5-5"; break;
case V4L2_PIX_FMT_SDE_RGBA_4444:
descr = "16-bit RGBA 4-4-4-4"; break;
case V4L2_PIX_FMT_SDE_BGRA_4444:
descr = "16-bit BGRA 4-4-4-4"; break;
case V4L2_PIX_FMT_SDE_ABGR_4444:
descr = "16-bit ABGR 4-4-4-4"; break;
case V4L2_PIX_FMT_SDE_RGBX_4444:
descr = "16-bit RGBX 4-4-4-4"; break;
case V4L2_PIX_FMT_SDE_BGRX_4444:
descr = "16-bit BGRX 4-4-4-4"; break;
case V4L2_PIX_FMT_SDE_XBGR_4444:
descr = "16-bit XBGR 4-4-4-4"; break;
case V4L2_PIX_FMT_SDE_BGR_565:
descr = "16-bit BGR 5-6-5"; break;
case V4L2_PIX_FMT_SDE_Y_CR_CB_GH2V2:
descr = "Planar YVU 4:2:0 A16"; break;
case V4L2_PIX_FMT_SDE_Y_CBCR_H1V2:
descr = "Y/CbCr 4:2:2"; break;
case V4L2_PIX_FMT_SDE_Y_CRCB_H1V2:
descr = "Y/CrCb 4:2:2"; break;
case V4L2_PIX_FMT_SDE_Y_CBCR_H2V2_VENUS:
descr = "Y/CbCr 4:2:0 Venus"; break;
case V4L2_PIX_FMT_SDE_Y_CRCB_H2V2_VENUS:
descr = "Y/CrCb 4:2:0 Venus"; break;
case V4L2_PIX_FMT_SDE_RGBX_8888_UBWC:
descr = "RGBX 8:8:8:8 UBWC"; break;
case V4L2_PIX_FMT_SDE_RGB_565_UBWC:
descr = "RGB 5:6:5 UBWC"; break;
case V4L2_PIX_FMT_SDE_RGBA_1010102:
descr = "RGBA 10:10:10:2"; break;
case V4L2_PIX_FMT_SDE_RGBX_1010102:
descr = "RGBX 10:10:10:2"; break;
case V4L2_PIX_FMT_SDE_ARGB_2101010:
descr = "ARGB 2:10:10:10"; break;
case V4L2_PIX_FMT_SDE_XRGB_2101010:
descr = "XRGB 2:10:10:10"; break;
case V4L2_PIX_FMT_SDE_BGRA_1010102:
descr = "BGRA 10:10:10:2"; break;
case V4L2_PIX_FMT_SDE_BGRX_1010102:
descr = "BGRX 10:10:10:2"; break;
case V4L2_PIX_FMT_SDE_ABGR_2101010:
descr = "ABGR 2:10:10:10"; break;
case V4L2_PIX_FMT_SDE_XBGR_2101010:
descr = "XBGR 2:10:10:10"; break;
case V4L2_PIX_FMT_SDE_RGBA_1010102_UBWC:
descr = "RGBA 10:10:10:2 UBWC"; break;
case V4L2_PIX_FMT_SDE_RGBX_1010102_UBWC:
descr = "RGBX 10:10:10:2 UBWC"; break;
case V4L2_PIX_FMT_SDE_Y_CBCR_H2V2_TP10:
descr = "Y/CbCr 4:2:0 TP10"; break;
case V4L2_PIX_FMT_SDE_Y_CBCR_H2V2_P010:
descr = "Y/CbCr 4:2:0 P10"; break;
case V4L2_PIX_FMT_NV12_TP10_UBWC:
descr = "Y/CbCr 4:2:0 TP10 UBWC"; break;
default:
/* Compressed formats */
flags = V4L2_FMT_FLAG_COMPRESSED;
switch (fmt->pixelformat) {
/* Max description length mask: descr = "0123456789012345678901234567890" */
case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break;
case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break;
case V4L2_PIX_FMT_DV: descr = "1394"; break;
case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break;
case V4L2_PIX_FMT_H264: descr = "H.264"; break;
case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break;
case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break;
case V4L2_PIX_FMT_H263: descr = "H.263"; break;
case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break;
case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break;
case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break;
case V4L2_PIX_FMT_XVID: descr = "Xvid"; break;
case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break;
case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break;
case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break;
case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break;
case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break;
case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break;
case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break;
case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break;
case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break;
case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break;
case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break;
case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break;
case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break;
case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break;
case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break;
case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break;
case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break;
case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break;
case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break;
case V4L2_PIX_FMT_HEVC:
descr = "HEVC"; break;
case V4L2_PIX_FMT_HEVC_HYBRID:
descr = "HEVC Hybrid"; break;
case V4L2_PIX_FMT_VP9:
descr = "VP9"; break;
case V4L2_PIX_FMT_DIVX_311:
descr = "DIVX311"; break;
case V4L2_PIX_FMT_DIVX:
descr = "DIVX"; break;
default:
WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat);
if (fmt->description[0])
return;
flags = 0;
snprintf(fmt->description, sz, "%c%c%c%c%s",
(char)(fmt->pixelformat & 0x7f),
(char)((fmt->pixelformat >> 8) & 0x7f),
(char)((fmt->pixelformat >> 16) & 0x7f),
(char)((fmt->pixelformat >> 24) & 0x7f),
(fmt->pixelformat & (1 << 31)) ? "-BE" : "");
break;
}
}
if (descr)
WARN_ON(strlcpy(fmt->description, descr, sz) >= sz);
fmt->flags = flags;
}