cngdec: Make the dbov variable have the right unit

[ffmpeg] / libavcodec / png.h

diff --git a/libavcodec/png.h b/libavcodec/png.h
index 97e81f5628a2f297177e44369ad882dd20ed442b..b8c72eebc9e2c8923e9037bd029cdff612873fa9 100644 (file)
--- a/libavcodec/png.h
+++ b/libavcodec/png.h
@@ -2,20 +2,20 @@
  * PNG image format
  * Copyright (c) 2003 Fabrice Bellard
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -55,12 +55,6 @@ 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];
 
-/* minimum x value */
-extern const uint8_t ff_png_pass_xmin[NB_PASSES];
-
-/* x shift to get row width */
-extern const uint8_t ff_png_pass_xshift[NB_PASSES];
-
 /* Mask to determine which pixels are valid in a pass */
 extern const uint8_t ff_png_pass_mask[NB_PASSES];
 
@@ -73,4 +67,6 @@ int ff_png_get_nb_channels(int color_type);
 /* compute the row size of an interleaved pass */
 int ff_png_pass_row_size(int pass, int bits_per_pixel, int width);
 
+void ff_add_png_paeth_prediction(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp);
+
 #endif /* AVCODEC_PNG_H */