libmpcodecs/img_format.c

   1 #include "config.h"
   2 #include "img_format.h"
   3 #include "stdio.h"
   4
   5 const char *vo_format_name(int format)
   6 {
   7     static char unknown_format[20];
   8     switch(format)
   9     {
  10         case IMGFMT_RGB1: return "RGB 1-bit";
  11         case IMGFMT_RGB4: return "RGB 4-bit";
  12         case IMGFMT_RG4B: return "RGB 4-bit per byte";
  13         case IMGFMT_RGB8: return "RGB 8-bit";
  14         case IMGFMT_RGB15: return "RGB 15-bit";
  15         case IMGFMT_RGB16: return "RGB 16-bit";
  16         case IMGFMT_RGB24: return "RGB 24-bit";
  17 //      case IMGFMT_RGB32: return "RGB 32-bit";
  18         case IMGFMT_RGB48LE: return "RGB 48-bit LE";
  19         case IMGFMT_RGB48BE: return "RGB 48-bit BE";
  20         case IMGFMT_BGR1: return "BGR 1-bit";
  21         case IMGFMT_BGR4: return "BGR 4-bit";
  22         case IMGFMT_BG4B: return "BGR 4-bit per byte";
  23         case IMGFMT_BGR8: return "BGR 8-bit";
  24         case IMGFMT_BGR15: return "BGR 15-bit";
  25         case IMGFMT_BGR16: return "BGR 16-bit";
  26         case IMGFMT_BGR24: return "BGR 24-bit";
  27 //      case IMGFMT_BGR32: return "BGR 32-bit";
  28         case IMGFMT_ABGR: return "ABGR";
  29         case IMGFMT_BGRA: return "BGRA";
  30         case IMGFMT_ARGB: return "ARGB";
  31         case IMGFMT_RGBA: return "RGBA";
  32         case IMGFMT_YVU9: return "Planar YVU9";
  33         case IMGFMT_IF09: return "Planar IF09";
  34         case IMGFMT_YV12: return "Planar YV12";
  35         case IMGFMT_I420: return "Planar I420";
  36         case IMGFMT_IYUV: return "Planar IYUV";
  37         case IMGFMT_CLPL: return "Planar CLPL";
  38         case IMGFMT_Y800: return "Planar Y800";
  39         case IMGFMT_Y8: return "Planar Y8";
  40         case IMGFMT_420P16_LE: return "Planar 420P 16-bit little-endian";
  41         case IMGFMT_420P16_BE: return "Planar 420P 16-bit big-endian";
  42         case IMGFMT_422P16_LE: return "Planar 422P 16-bit little-endian";
  43         case IMGFMT_422P16_BE: return "Planar 422P 16-bit big-endian";
  44         case IMGFMT_444P16_LE: return "Planar 444P 16-bit little-endian";
  45         case IMGFMT_444P16_BE: return "Planar 444P 16-bit big-endian";
  46         case IMGFMT_420A: return "Planar 420P with alpha";
  47         case IMGFMT_444P: return "Planar 444P";
  48         case IMGFMT_422P: return "Planar 422P";
  49         case IMGFMT_411P: return "Planar 411P";
  50         case IMGFMT_NV12: return "Planar NV12";
  51         case IMGFMT_NV21: return "Planar NV21";
  52         case IMGFMT_HM12: return "Planar NV12 Macroblock";
  53         case IMGFMT_IUYV: return "Packed IUYV";
  54         case IMGFMT_IY41: return "Packed IY41";
  55         case IMGFMT_IYU1: return "Packed IYU1";
  56         case IMGFMT_IYU2: return "Packed IYU2";
  57         case IMGFMT_UYVY: return "Packed UYVY";
  58         case IMGFMT_UYNV: return "Packed UYNV";
  59         case IMGFMT_cyuv: return "Packed CYUV";
  60         case IMGFMT_Y422: return "Packed Y422";
  61         case IMGFMT_YUY2: return "Packed YUY2";
  62         case IMGFMT_YUNV: return "Packed YUNV";
  63         case IMGFMT_YVYU: return "Packed YVYU";
  64         case IMGFMT_Y41P: return "Packed Y41P";
  65         case IMGFMT_Y211: return "Packed Y211";
  66         case IMGFMT_Y41T: return "Packed Y41T";
  67         case IMGFMT_Y42T: return "Packed Y42T";
  68         case IMGFMT_V422: return "Packed V422";
  69         case IMGFMT_V655: return "Packed V655";
  70         case IMGFMT_CLJR: return "Packed CLJR";
  71         case IMGFMT_YUVP: return "Packed YUVP";
  72         case IMGFMT_UYVP: return "Packed UYVP";
  73         case IMGFMT_MPEGPES: return "Mpeg PES";
  74         case IMGFMT_ZRMJPEGNI: return "Zoran MJPEG non-interlaced";
  75         case IMGFMT_ZRMJPEGIT: return "Zoran MJPEG top field first";
  76         case IMGFMT_ZRMJPEGIB: return "Zoran MJPEG bottom field first";
  77         case IMGFMT_XVMC_MOCO_MPEG2: return "MPEG1/2 Motion Compensation";
  78         case IMGFMT_XVMC_IDCT_MPEG2: return "MPEG1/2 Motion Compensation and IDCT";
  79         case IMGFMT_VDPAU_MPEG1: return "MPEG1 VDPAU acceleration";
  80         case IMGFMT_VDPAU_MPEG2: return "MPEG2 VDPAU acceleration";
  81         case IMGFMT_VDPAU_H264: return "H.264 VDPAU acceleration";
  82         case IMGFMT_VDPAU_MPEG4: return "MPEG-4 Part 2 VDPAU acceleration";
  83         case IMGFMT_VDPAU_WMV3: return "WMV3 VDPAU acceleration";
  84         case IMGFMT_VDPAU_VC1: return "VC1 VDPAU acceleration";
  85     }
  86     snprintf(unknown_format,20,"Unknown 0x%04x",format);
  87     return unknown_format;
  88 }
  89
  90 int mp_get_chroma_shift(int format, int *x_shift, int *y_shift)
  91 {
  92     int xs = 0, ys = 0;
  93     int bpp;
  94     int bpp_factor = 1;
  95     int err = 0;
  96     switch (format) {
  97     case IMGFMT_420P16_LE:
  98     case IMGFMT_420P16_BE:
  99         bpp_factor = 2;
 100     case IMGFMT_420A:
 101     case IMGFMT_I420:
 102     case IMGFMT_IYUV:
 103     case IMGFMT_YV12:
 104         xs = 1;
 105         ys = 1;
 106         break;
 107     case IMGFMT_IF09:
 108     case IMGFMT_YVU9:
 109         xs = 2;
 110         ys = 2;
 111         break;
 112     case IMGFMT_444P16_LE:
 113     case IMGFMT_444P16_BE:
 114         bpp_factor = 2;
 115     case IMGFMT_444P:
 116         xs = 0;
 117         ys = 0;
 118         break;
 119     case IMGFMT_422P16_LE:
 120     case IMGFMT_422P16_BE:
 121         bpp_factor = 2;
 122     case IMGFMT_422P:
 123         xs = 1;
 124         ys = 0;
 125         break;
 126     case IMGFMT_411P:
 127         xs = 2;
 128         ys = 0;
 129         break;
 130     case IMGFMT_440P:
 131         xs = 0;
 132         ys = 1;
 133         break;
 134     default:
 135         err = 1;
 136         break;
 137     }
 138     if (x_shift) *x_shift = xs;
 139     if (y_shift) *y_shift = ys;
 140     bpp = 8 + (16 >> (xs + ys));
 141     if (format == IMGFMT_420A)
 142         bpp += 8;
 143     bpp *= bpp_factor;
 144     return err ? 0 : bpp;
 145 }