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![Michael Niedermayer](/assets/img/avatar_default.png)
* commit '716d413c13981da15323c7a3821860536eefdbbb': Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat Conflicts: doc/examples/muxing.c ffmpeg.h ffmpeg_filter.c ffmpeg_opt.c ffplay.c ffprobe.c libavcodec/8bps.c libavcodec/aasc.c libavcodec/aura.c libavcodec/avcodec.h libavcodec/avs.c libavcodec/bfi.c libavcodec/bmp.c libavcodec/bmpenc.c libavcodec/c93.c libavcodec/cscd.c libavcodec/cyuv.c libavcodec/dpx.c libavcodec/dpxenc.c libavcodec/eatgv.c libavcodec/escape124.c libavcodec/ffv1.c libavcodec/flashsv.c libavcodec/fraps.c libavcodec/h264.c libavcodec/huffyuv.c libavcodec/iff.c libavcodec/imgconvert.c libavcodec/indeo3.c libavcodec/kmvc.c libavcodec/libopenjpegdec.c libavcodec/libopenjpegenc.c libavcodec/libx264.c libavcodec/ljpegenc.c libavcodec/mjpegdec.c libavcodec/mjpegenc.c libavcodec/motionpixels.c libavcodec/mpeg12.c libavcodec/mpeg12enc.c libavcodec/mpeg4videodec.c libavcodec/mpegvideo_enc.c libavcodec/pamenc.c libavcodec/pcxenc.c libavcodec/pgssubdec.c libavcodec/pngdec.c libavcodec/pngenc.c libavcodec/pnm.c libavcodec/pnmdec.c libavcodec/pnmenc.c libavcodec/ptx.c libavcodec/qdrw.c libavcodec/qpeg.c libavcodec/qtrleenc.c libavcodec/raw.c libavcodec/rawdec.c libavcodec/rl2.c libavcodec/sgidec.c libavcodec/sgienc.c libavcodec/snowdec.c libavcodec/snowenc.c libavcodec/sunrast.c libavcodec/targa.c libavcodec/targaenc.c libavcodec/tiff.c libavcodec/tiffenc.c libavcodec/tmv.c libavcodec/truemotion2.c libavcodec/utils.c libavcodec/vb.c libavcodec/vp3.c libavcodec/wnv1.c libavcodec/xl.c libavcodec/xwddec.c libavcodec/xwdenc.c libavcodec/yop.c libavdevice/v4l2.c libavdevice/x11grab.c libavfilter/avfilter.c libavfilter/avfilter.h libavfilter/buffersrc.c libavfilter/drawutils.c libavfilter/formats.c libavfilter/src_movie.c libavfilter/vf_ass.c libavfilter/vf_drawtext.c libavfilter/vf_fade.c libavfilter/vf_format.c libavfilter/vf_hflip.c libavfilter/vf_lut.c libavfilter/vf_overlay.c libavfilter/vf_pad.c libavfilter/vf_scale.c libavfilter/vf_transpose.c libavfilter/vf_yadif.c libavfilter/video.c libavfilter/vsrc_testsrc.c libavformat/movenc.c libavformat/mxf.h libavformat/utils.c libavformat/yuv4mpeg.c libavutil/imgutils.c libavutil/pixdesc.c libswscale/input.c libswscale/output.c libswscale/swscale_internal.h libswscale/swscale_unscaled.c libswscale/utils.c libswscale/x86/swscale_template.c libswscale/x86/yuv2rgb.c libswscale/x86/yuv2rgb_template.c libswscale/yuv2rgb.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
156 lines
5.4 KiB
C
156 lines
5.4 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFILTER_DRAWUTILS_H
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#define AVFILTER_DRAWUTILS_H
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/**
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* @file
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* misc drawing utilities
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*/
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#include <stdint.h>
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#include "avfilter.h"
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#include "libavutil/pixfmt.h"
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int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt);
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int ff_fill_line_with_color(uint8_t *line[4], int pixel_step[4], int w,
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uint8_t dst_color[4],
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enum AVPixelFormat pix_fmt, uint8_t rgba_color[4],
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int *is_packed_rgba, uint8_t rgba_map[4]);
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void ff_draw_rectangle(uint8_t *dst[4], int dst_linesize[4],
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uint8_t *src[4], int pixelstep[4],
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int hsub, int vsub, int x, int y, int w, int h);
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void ff_copy_rectangle(uint8_t *dst[4], int dst_linesize[4],
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uint8_t *src[4], int src_linesize[4], int pixelstep[4],
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int hsub, int vsub, int x, int y, int y2, int w, int h);
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#define MAX_PLANES 4
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typedef struct FFDrawContext {
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const struct AVPixFmtDescriptor *desc;
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enum AVPixelFormat format;
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unsigned nb_planes;
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int pixelstep[MAX_PLANES]; /*< offset between pixels */
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uint8_t comp_mask[MAX_PLANES]; /*< bitmask of used non-alpha components */
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uint8_t hsub[MAX_PLANES]; /*< horizontal subsamling */
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uint8_t vsub[MAX_PLANES]; /*< vertical subsamling */
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uint8_t hsub_max;
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uint8_t vsub_max;
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} FFDrawContext;
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typedef struct FFDrawColor {
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uint8_t rgba[4];
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union {
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uint32_t u32;
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uint16_t u16;
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uint8_t u8[4];
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} comp[MAX_PLANES];
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} FFDrawColor;
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/**
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* Init a draw context.
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*
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* Only a limited number of pixel formats are supported, if format is not
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* supported the function will return an error.
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* No flags currently defined.
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* @return 0 for success, < 0 for error
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*/
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int ff_draw_init(FFDrawContext *draw, enum AVPixelFormat format, unsigned flags);
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/**
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* Prepare a color.
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*/
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void ff_draw_color(FFDrawContext *draw, FFDrawColor *color, const uint8_t rgba[4]);
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/**
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* Copy a rectangle from an image to another.
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*
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* The coordinates must be as even as the subsampling requires.
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*/
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void ff_copy_rectangle2(FFDrawContext *draw,
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uint8_t *dst[], int dst_linesize[],
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uint8_t *src[], int src_linesize[],
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int dst_x, int dst_y, int src_x, int src_y,
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int w, int h);
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/**
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* Fill a rectangle with an uniform color.
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*
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* The coordinates must be as even as the subsampling requires.
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* The color needs to be inited with ff_draw_color.
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*/
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void ff_fill_rectangle(FFDrawContext *draw, FFDrawColor *color,
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uint8_t *dst[], int dst_linesize[],
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int dst_x, int dst_y, int w, int h);
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/**
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* Blend a rectangle with an uniform color.
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*/
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void ff_blend_rectangle(FFDrawContext *draw, FFDrawColor *color,
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uint8_t *dst[], int dst_linesize[],
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int dst_w, int dst_h,
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int x0, int y0, int w, int h);
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/**
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* Blend an alpha mask with an uniform color.
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*
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* @param draw draw context
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* @param color color for the overlay;
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* @param dst destination image
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* @param dst_linesize line stride of the destination
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* @param dst_w width of the destination image
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* @param dst_h height of the destination image
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* @param mask mask
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* @param mask_linesize line stride of the mask
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* @param mask_w width of the mask
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* @param mask_h height of the mask
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* @param l2depth log2 of depth of the mask (0 for 1bpp, 3 for 8bpp)
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* @param endianness bit order of the mask (0: MSB to the left)
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* @param x0 horizontal position of the overlay
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* @param y0 vertical position of the overlay
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*/
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void ff_blend_mask(FFDrawContext *draw, FFDrawColor *color,
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uint8_t *dst[], int dst_linesize[], int dst_w, int dst_h,
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uint8_t *mask, int mask_linesize, int mask_w, int mask_h,
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int l2depth, unsigned endianness, int x0, int y0);
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/**
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* Round a dimension according to subsampling.
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*
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* @param draw draw context
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* @param sub_dir 0 for horizontal, 1 for vertical
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* @param round_dir 0 nearest, -1 round down, +1 round up
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* @param value value to round
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* @return the rounded value
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*/
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int ff_draw_round_to_sub(FFDrawContext *draw, int sub_dir, int round_dir,
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int value);
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/**
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* Return the list of pixel formats supported by the draw functions.
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*
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* The flags are the same as ff_draw_init, i.e., none currently.
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*/
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AVFilterFormats *ff_draw_supported_pixel_formats(unsigned flags);
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#endif /* AVFILTER_DRAWUTILS_H */
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