X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fpng.h;h=6e16f62e0fedfa2f6c89e5d83fcda7f21e3810ac;hb=fc4d335f6d5c4f211505b79371a8588a48376d21;hp=e6fced7f370bfb3267d1f0a7b4deb1575e0e8052;hpb=5b21bdabe43611385d1d55a21d5b1f607b133d29;p=ffmpeg

diff --git a/libavcodec/png.h b/libavcodec/png.h
index e6fced7f370..6e16f62e0fe 100644
--- a/libavcodec/png.h
+++ b/libavcodec/png.h
@@ -34,11 +34,13 @@
 #define PNG_COLOR_TYPE_RGB_ALPHA  (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_ALPHA)
 #define PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA)
 
+#define PNG_FILTER_TYPE_LOCO   64
 #define PNG_FILTER_VALUE_NONE  0
 #define PNG_FILTER_VALUE_SUB   1
 #define PNG_FILTER_VALUE_UP    2
 #define PNG_FILTER_VALUE_AVG   3
 #define PNG_FILTER_VALUE_PAETH 4
+#define PNG_FILTER_VALUE_MIXED 5
 
 #define PNG_IHDR      0x0001
 #define PNG_IDAT      0x0002
@@ -48,6 +50,7 @@
 #define NB_PASSES 7
 
 extern const uint8_t ff_pngsig[8];
+extern const uint8_t ff_mngsig[8];
 
 /* Mask to determine which y pixels are valid in a pass */
 extern const uint8_t ff_png_pass_ymask[NB_PASSES];