R and B components are stored as a differences to G component in Fraps v5.

[ffmpeg] / libavcodec / png.h

diff --git a/libavcodec/png.h b/libavcodec/png.h
index e6fced7f370bfb3267d1f0a7b4deb1575e0e8052..6e16f62e0fedfa2f6c89e5d83fcda7f21e3810ac 100644 (file)
--- 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];