1 files changed, 102 insertions, 0 deletions
diff --git a/ffmpeg/libavformat/img2.c b/ffmpeg/libavformat/img2.c
new file mode 100644
index 0000000..eee100a
--- /dev/null
+++ b/ffmpeg/libavformat/img2.c
@@ -0,0 +1,102 @@
+/*
+ * Image format
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ * Copyright (c) 2004 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/avstring.h"
+#include "internal.h"
+
+typedef struct {
+    enum AVCodecID id;
+    const char *str;
+} IdStrMap;
+
+static const IdStrMap img_tags[] = {
+    { AV_CODEC_ID_MJPEG,      "jpeg"     },
+    { AV_CODEC_ID_MJPEG,      "jpg"      },
+    { AV_CODEC_ID_MJPEG,      "jps"      },
+    { AV_CODEC_ID_LJPEG,      "ljpg"     },
+    { AV_CODEC_ID_JPEGLS,     "jls"      },
+    { AV_CODEC_ID_PNG,        "png"      },
+    { AV_CODEC_ID_PNG,        "pns"      },
+    { AV_CODEC_ID_PNG,        "mng"      },
+    { AV_CODEC_ID_PPM,        "ppm"      },
+    { AV_CODEC_ID_PPM,        "pnm"      },
+    { AV_CODEC_ID_PGM,        "pgm"      },
+    { AV_CODEC_ID_PGMYUV,     "pgmyuv"   },
+    { AV_CODEC_ID_PBM,        "pbm"      },
+    { AV_CODEC_ID_PAM,        "pam"      },
+    { AV_CODEC_ID_MPEG1VIDEO, "mpg1-img" },
+    { AV_CODEC_ID_MPEG2VIDEO, "mpg2-img" },
+    { AV_CODEC_ID_MPEG4,      "mpg4-img" },
+    { AV_CODEC_ID_FFV1,       "ffv1-img" },
+    { AV_CODEC_ID_RAWVIDEO,   "y"        },
+    { AV_CODEC_ID_RAWVIDEO,   "raw"      },
+    { AV_CODEC_ID_BMP,        "bmp"      },
+    { AV_CODEC_ID_GIF,        "gif"      },
+    { AV_CODEC_ID_TARGA,      "tga"      },
+    { AV_CODEC_ID_TIFF,       "tiff"     },
+    { AV_CODEC_ID_TIFF,       "tif"      },
+    { AV_CODEC_ID_SGI,        "sgi"      },
+    { AV_CODEC_ID_PTX,        "ptx"      },
+    { AV_CODEC_ID_PCX,        "pcx"      },
+    { AV_CODEC_ID_BRENDER_PIX, "pix"     },
+    { AV_CODEC_ID_SUNRAST,    "sun"      },
+    { AV_CODEC_ID_SUNRAST,    "ras"      },
+    { AV_CODEC_ID_SUNRAST,    "rs"       },
+    { AV_CODEC_ID_SUNRAST,    "im1"      },
+    { AV_CODEC_ID_SUNRAST,    "im8"      },
+    { AV_CODEC_ID_SUNRAST,    "im24"     },
+    { AV_CODEC_ID_SUNRAST,    "im32"     },
+    { AV_CODEC_ID_SUNRAST,    "sunras"   },
+    { AV_CODEC_ID_JPEG2000,   "j2c"      },
+    { AV_CODEC_ID_JPEG2000,   "j2k"      },
+    { AV_CODEC_ID_JPEG2000,   "jp2"      },
+    { AV_CODEC_ID_JPEG2000,   "jpc"      },
+    { AV_CODEC_ID_DPX,        "dpx"      },
+    { AV_CODEC_ID_EXR,        "exr"      },
+    { AV_CODEC_ID_PICTOR,     "pic"      },
+    { AV_CODEC_ID_V210X,      "yuv10"    },
+    { AV_CODEC_ID_XBM,        "xbm"      },
+    { AV_CODEC_ID_XFACE,      "xface"    },
+    { AV_CODEC_ID_XWD,        "xwd"      },
+    { AV_CODEC_ID_NONE,       NULL       }
+};
+
+static enum AVCodecID av_str2id(const IdStrMap *tags, const char *str)
+{
+    str = strrchr(str, '.');
+    if (!str)
+        return AV_CODEC_ID_NONE;
+    str++;
+
+    while (tags->id) {
+        if (!av_strcasecmp(str, tags->str))
+            return tags->id;
+
+        tags++;
+    }
+    return AV_CODEC_ID_NONE;
+}
+
+enum AVCodecID ff_guess_image2_codec(const char *filename)
+{
+    return av_str2id(img_tags, filename);
+}