ffmpeg/libavformat/img2.c

   1 /*
   2  * Image format
   3  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
   4  * Copyright (c) 2004 Michael Niedermayer
   5  *
   6  * This file is part of FFmpeg.
   7  *
   8  * FFmpeg is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * FFmpeg is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with FFmpeg; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #include "libavutil/avstring.h"
  24 #include "internal.h"
  25
  26 typedef struct {
  27     enum AVCodecID id;
  28     const char *str;
  29 } IdStrMap;
  30
  31 static const IdStrMap img_tags[] = {
  32     { AV_CODEC_ID_MJPEG,      "jpeg"     },
  33     { AV_CODEC_ID_MJPEG,      "jpg"      },
  34     { AV_CODEC_ID_MJPEG,      "jps"      },
  35     { AV_CODEC_ID_MJPEG,      "mpo"      },
  36     { AV_CODEC_ID_LJPEG,      "ljpg"     },
  37     { AV_CODEC_ID_JPEGLS,     "jls"      },
  38     { AV_CODEC_ID_PNG,        "png"      },
  39     { AV_CODEC_ID_PNG,        "pns"      },
  40     { AV_CODEC_ID_PNG,        "mng"      },
  41     { AV_CODEC_ID_PPM,        "ppm"      },
  42     { AV_CODEC_ID_PPM,        "pnm"      },
  43     { AV_CODEC_ID_PGM,        "pgm"      },
  44     { AV_CODEC_ID_PGMYUV,     "pgmyuv"   },
  45     { AV_CODEC_ID_PBM,        "pbm"      },
  46     { AV_CODEC_ID_PAM,        "pam"      },
  47     { AV_CODEC_ID_ALIAS_PIX,  "pix"      },
  48     { AV_CODEC_ID_MPEG1VIDEO, "mpg1-img" },
  49     { AV_CODEC_ID_MPEG2VIDEO, "mpg2-img" },
  50     { AV_CODEC_ID_MPEG4,      "mpg4-img" },
  51     { AV_CODEC_ID_FFV1,       "ffv1-img" },
  52     { AV_CODEC_ID_RAWVIDEO,   "y"        },
  53     { AV_CODEC_ID_RAWVIDEO,   "raw"      },
  54     { AV_CODEC_ID_BMP,        "bmp"      },
  55     { AV_CODEC_ID_TARGA,      "tga"      },
  56     { AV_CODEC_ID_TIFF,       "tiff"     },
  57     { AV_CODEC_ID_TIFF,       "tif"      },
  58     { AV_CODEC_ID_SGI,        "sgi"      },
  59     { AV_CODEC_ID_PTX,        "ptx"      },
  60     { AV_CODEC_ID_PCX,        "pcx"      },
  61     { AV_CODEC_ID_SUNRAST,    "sun"      },
  62     { AV_CODEC_ID_SUNRAST,    "ras"      },
  63     { AV_CODEC_ID_SUNRAST,    "rs"       },
  64     { AV_CODEC_ID_SUNRAST,    "im1"      },
  65     { AV_CODEC_ID_SUNRAST,    "im8"      },
  66     { AV_CODEC_ID_SUNRAST,    "im24"     },
  67     { AV_CODEC_ID_SUNRAST,    "im32"     },
  68     { AV_CODEC_ID_SUNRAST,    "sunras"   },
  69     { AV_CODEC_ID_JPEG2000,   "j2c"      },
  70     { AV_CODEC_ID_JPEG2000,   "jp2"      },
  71     { AV_CODEC_ID_JPEG2000,   "jpc"      },
  72     { AV_CODEC_ID_JPEG2000,   "j2k"      },
  73     { AV_CODEC_ID_DPX,        "dpx"      },
  74     { AV_CODEC_ID_EXR,        "exr"      },
  75     { AV_CODEC_ID_PICTOR,     "pic"      },
  76     { AV_CODEC_ID_V210X,      "yuv10"    },
  77     { AV_CODEC_ID_WEBP,       "webp"     },
  78     { AV_CODEC_ID_XBM,        "xbm"      },
  79     { AV_CODEC_ID_XFACE,      "xface"    },
  80     { AV_CODEC_ID_XWD,        "xwd"      },
  81     { AV_CODEC_ID_NONE,       NULL       }
  82 };
  83
  84 static enum AVCodecID av_str2id(const IdStrMap *tags, const char *str)
  85 {
  86     str = strrchr(str, '.');
  87     if (!str)
  88         return AV_CODEC_ID_NONE;
  89     str++;
  90
  91     while (tags->id) {
  92         if (!av_strcasecmp(str, tags->str))
  93             return tags->id;
  94
  95         tags++;
  96     }
  97     return AV_CODEC_ID_NONE;
  98 }
  99
 100 enum AVCodecID ff_guess_image2_codec(const char *filename)
 101 {
 102     return av_str2id(img_tags, filename);
 103 }