/*
* PNG image format
- * Copyright (c) 2003 Fabrice Bellard.
+ * Copyright (c) 2003 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef FFMPEG_PNG_H
-#define FFMPEG_PNG_H
+#ifndef AVCODEC_PNG_H
+#define AVCODEC_PNG_H
#include <stdint.h>
/* Mask to determine which pixels are valid in a pass */
extern const uint8_t ff_png_pass_mask[NB_PASSES];
-extern void *ff_png_zalloc(void *opaque, unsigned int items,
- unsigned int size);
+void *ff_png_zalloc(void *opaque, unsigned int items, unsigned int size);
-extern void ff_png_zfree(void *opaque, void *ptr);
+void ff_png_zfree(void *opaque, void *ptr);
-extern int ff_png_get_nb_channels(int color_type);
+int ff_png_get_nb_channels(int color_type);
/* compute the row size of an interleaved pass */
-extern int ff_png_pass_row_size(int pass, int bits_per_pixel, int width);
+int ff_png_pass_row_size(int pass, int bits_per_pixel, int width);
-#endif /* FFMPEG_PNG_H */
+void ff_add_png_paeth_prediction(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp);
+
+#endif /* AVCODEC_PNG_H */