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Diffstat (limited to 'ffmpeg/libavfilter/drawutils.h')
| -rw-r--r-- | ffmpeg/libavfilter/drawutils.h | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/ffmpeg/libavfilter/drawutils.h b/ffmpeg/libavfilter/drawutils.h deleted file mode 100644 index 5ffffe7..0000000 --- a/ffmpeg/libavfilter/drawutils.h +++ /dev/null @@ -1,155 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * FFmpeg 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, - * 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 - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef AVFILTER_DRAWUTILS_H -#define AVFILTER_DRAWUTILS_H - -/** - * @file - * misc drawing utilities - */ - -#include <stdint.h> -#include "avfilter.h" -#include "libavutil/pixfmt.h" - -int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt); - -int ff_fill_line_with_color(uint8_t *line[4], int pixel_step[4], int w, - uint8_t dst_color[4], - enum AVPixelFormat pix_fmt, uint8_t rgba_color[4], - int *is_packed_rgba, uint8_t rgba_map[4]); - -void ff_draw_rectangle(uint8_t *dst[4], int dst_linesize[4], - uint8_t *src[4], int pixelstep[4], - int hsub, int vsub, int x, int y, int w, int h); - -void ff_copy_rectangle(uint8_t *dst[4], int dst_linesize[4], - uint8_t *src[4], int src_linesize[4], int pixelstep[4], - int hsub, int vsub, int x, int y, int y2, int w, int h); - -#define MAX_PLANES 4 - -typedef struct FFDrawContext { - const struct AVPixFmtDescriptor *desc; - enum AVPixelFormat format; - unsigned nb_planes; - int pixelstep[MAX_PLANES]; /*< offset between pixels */ - uint8_t comp_mask[MAX_PLANES]; /*< bitmask of used non-alpha components */ - uint8_t hsub[MAX_PLANES]; /*< horizontal subsampling */ - uint8_t vsub[MAX_PLANES]; /*< vertical subsampling */ - uint8_t hsub_max; - uint8_t vsub_max; -} FFDrawContext; - -typedef struct FFDrawColor { - uint8_t rgba[4]; - union { - uint32_t u32; - uint16_t u16; - uint8_t u8[4]; - } comp[MAX_PLANES]; -} FFDrawColor; - -/** - * Init a draw context. - * - * Only a limited number of pixel formats are supported, if format is not - * supported the function will return an error. - * No flags currently defined. - * @return 0 for success, < 0 for error - */ -int ff_draw_init(FFDrawContext *draw, enum AVPixelFormat format, unsigned flags); - -/** - * Prepare a color. - */ -void ff_draw_color(FFDrawContext *draw, FFDrawColor *color, const uint8_t rgba[4]); - -/** - * Copy a rectangle from an image to another. - * - * The coordinates must be as even as the subsampling requires. - */ -void ff_copy_rectangle2(FFDrawContext *draw, - uint8_t *dst[], int dst_linesize[], - uint8_t *src[], int src_linesize[], - int dst_x, int dst_y, int src_x, int src_y, - int w, int h); - -/** - * Fill a rectangle with an uniform color. - * - * The coordinates must be as even as the subsampling requires. - * The color needs to be inited with ff_draw_color. - */ -void ff_fill_rectangle(FFDrawContext *draw, FFDrawColor *color, - uint8_t *dst[], int dst_linesize[], - int dst_x, int dst_y, int w, int h); - -/** - * Blend a rectangle with an uniform color. - */ -void ff_blend_rectangle(FFDrawContext *draw, FFDrawColor *color, - uint8_t *dst[], int dst_linesize[], - int dst_w, int dst_h, - int x0, int y0, int w, int h); - -/** - * Blend an alpha mask with an uniform color. - * - * @param draw draw context - * @param color color for the overlay; - * @param dst destination image - * @param dst_linesize line stride of the destination - * @param dst_w width of the destination image - * @param dst_h height of the destination image - * @param mask mask - * @param mask_linesize line stride of the mask - * @param mask_w width of the mask - * @param mask_h height of the mask - * @param l2depth log2 of depth of the mask (0 for 1bpp, 3 for 8bpp) - * @param endianness bit order of the mask (0: MSB to the left) - * @param x0 horizontal position of the overlay - * @param y0 vertical position of the overlay - */ -void ff_blend_mask(FFDrawContext *draw, FFDrawColor *color, - uint8_t *dst[], int dst_linesize[], int dst_w, int dst_h, - uint8_t *mask, int mask_linesize, int mask_w, int mask_h, - int l2depth, unsigned endianness, int x0, int y0); - -/** - * Round a dimension according to subsampling. - * - * @param draw draw context - * @param sub_dir 0 for horizontal, 1 for vertical - * @param round_dir 0 nearest, -1 round down, +1 round up - * @param value value to round - * @return the rounded value - */ -int ff_draw_round_to_sub(FFDrawContext *draw, int sub_dir, int round_dir, - int value); - -/** - * Return the list of pixel formats supported by the draw functions. - * - * The flags are the same as ff_draw_init, i.e., none currently. - */ -AVFilterFormats *ff_draw_supported_pixel_formats(unsigned flags); - -#endif /* AVFILTER_DRAWUTILS_H */ |