gradfun.h 2.3 KB

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  1. /*
  2. * Copyright (c) 2010 Nolan Lum <nol888@gmail.com>
  3. * Copyright (c) 2009 Loren Merritt <lorenm@u.washignton.edu>
  4. *
  5. * This file is part of FFmpeg.
  6. *
  7. * FFmpeg is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU Lesser General Public
  9. * License as published by the Free Software Foundation; either
  10. * version 2.1 of the License, or (at your option) any later version.
  11. *
  12. * FFmpeg is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15. * Lesser General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Lesser General Public
  18. * License along with FFmpeg; if not, write to the Free Software
  19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20. */
  21. #ifndef AVFILTER_GRADFUN_H
  22. #define AVFILTER_GRADFUN_H
  23. #include "avfilter.h"
  24. /// Holds instance-specific information for gradfun.
  25. typedef struct {
  26. int thresh; ///< threshold for gradient algorithm
  27. int radius; ///< blur radius
  28. int chroma_w; ///< width of the chroma planes
  29. int chroma_h; ///< weight of the chroma planes
  30. int chroma_r; ///< blur radius for the chroma planes
  31. uint16_t *buf; ///< holds image data for blur algorithm passed into filter.
  32. /// DSP functions.
  33. void (*filter_line) (uint8_t *dst, const uint8_t *src, const uint16_t *dc, int width, int thresh, const uint16_t *dithers);
  34. void (*blur_line) (uint16_t *dc, uint16_t *buf, const uint16_t *buf1, const uint8_t *src, int src_linesize, int width);
  35. } GradFunContext;
  36. void ff_gradfun_filter_line_c(uint8_t *dst, const uint8_t *src, const uint16_t *dc, int width, int thresh, const uint16_t *dithers);
  37. void ff_gradfun_blur_line_c(uint16_t *dc, uint16_t *buf, const uint16_t *buf1, const uint8_t *src, int src_linesize, int width);
  38. void ff_gradfun_filter_line_mmx2(uint8_t *dst, const uint8_t *src, const uint16_t *dc, int width, int thresh, const uint16_t *dithers);
  39. void ff_gradfun_filter_line_ssse3(uint8_t *dst, const uint8_t *src, const uint16_t *dc, int width, int thresh, const uint16_t *dithers);
  40. void ff_gradfun_blur_line_sse2(uint16_t *dc, uint16_t *buf, const uint16_t *buf1, const uint8_t *src, int src_linesize, int width);
  41. #endif /* AVFILTER_GRADFUN_H */