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5a0287dc76
Original commit message from CVS: * docs/plugins/gst-plugins-bad-plugins-sections.txt: * examples/app/appsrc-ra.c: * examples/app/appsrc-seekable.c: * examples/app/appsrc-stream.c: * examples/app/appsrc-stream2.c: * ext/directfb/dfbvideosink.h: * ext/metadata/gstbasemetadata.c: * ext/metadata/gstbasemetadata.h: * ext/metadata/metadata.c: * ext/metadata/metadataexif.c: * ext/theora/theoradec.h: * gst/deinterlace2/gstdeinterlace2.h: * gst/deinterlace2/tvtime/speedy.c: * gst/deinterlace2/tvtime/speedy.h: * gst/deinterlace2/tvtime/vfir.c: Fix gtk-doc warnings. Also don't misuse api-doc comments for normal comments.
308 lines
12 KiB
C
308 lines
12 KiB
C
/*
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*
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* GStreamer
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* Copyright (C) 2004 Billy Biggs <vektor@dumbterm.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Relicensed for GStreamer from GPL to LGPL with permit from Billy Biggs.
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* See: http://bugzilla.gnome.org/show_bug.cgi?id=163578
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*/
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#ifndef SPEEDY_H_INCLUDED
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#define SPEEDY_H_INCLUDED
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#if defined (__SVR4) && defined (__sun)
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# include <sys/int_types.h>
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#else
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# include <stdint.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Speedy is a collection of optimized functions plus their C fallbacks.
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* This includes a simple system to select which functions to use
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* at runtime.
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*
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* The optimizations are done with the help of the mmx.h system, from
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* libmpeg2 by Michel Lespinasse and Aaron Holtzman.
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*
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* The library is a collection of function pointers which must be first
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* initialized by setup_speedy_calls() to point at the fastest available
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* implementation of each function.
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*/
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/*
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* Struct for pulldown detection metrics.
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*/
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typedef struct pulldown_metrics_s {
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/* difference: total, even lines, odd lines */
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int d, e, o;
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/* noise: temporal, spacial (current), spacial (past) */
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int t, s, p;
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} pulldown_metrics_t;
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/*
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* Interpolates a packed 4:2:2 scanline using linear interpolation.
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*/
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extern void (*interpolate_packed422_scanline)( uint8_t *output, uint8_t *top,
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uint8_t *bot, int width );
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/*
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* Blits a colour to a packed 4:2:2 scanline.
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*/
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extern void (*blit_colour_packed422_scanline)( uint8_t *output,
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int width, int y, int cb, int cr );
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/*
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* Blits a colour to a packed 4:4:4:4 scanline. I use luma/cb/cr instead of
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* RGB but this will of course work for either.
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*/
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extern void (*blit_colour_packed4444_scanline)( uint8_t *output,
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int width, int alpha, int luma,
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int cb, int cr );
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/*
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* Blit from and to packed 4:2:2 scanline.
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*/
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extern void (*blit_packed422_scanline)( uint8_t *dest, const uint8_t *src, int width );
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/*
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* Composites a premultiplied 4:4:4:4 pixel onto a packed 4:2:2 scanline.
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*/
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extern void (*composite_colour4444_alpha_to_packed422_scanline)( uint8_t *output, uint8_t *input,
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int af, int y, int cb, int cr,
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int width, int alpha );
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/*
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* Composites a packed 4:4:4:4 scanline onto a packed 4:2:2 scanline.
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* Chroma is downsampled by dropping samples (nearest neighbour).
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*/
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extern void (*composite_packed4444_to_packed422_scanline)( uint8_t *output,
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uint8_t *input,
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uint8_t *foreground,
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int width );
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/*
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* Composites a packed 4:4:4:4 scanline onto a packed 4:2:2 scanline.
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* Chroma is downsampled by dropping samples (nearest neighbour). The
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* alpha value provided is in the range 0-256 and is first applied to
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* the input (for fadeouts).
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*/
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extern void (*composite_packed4444_alpha_to_packed422_scanline)( uint8_t *output,
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uint8_t *input,
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uint8_t *foreground,
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int width, int alpha );
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/*
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* Takes an alphamask and the given colour (in Y'CbCr) and composites it
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* onto a packed 4:4:4:4 scanline.
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*/
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extern void (*composite_alphamask_to_packed4444_scanline)( uint8_t *output,
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uint8_t *input,
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uint8_t *mask, int width,
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int textluma, int textcb,
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int textcr );
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/*
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* Takes an alphamask and the given colour (in Y'CbCr) and composites it
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* onto a packed 4:4:4:4 scanline. The alpha value provided is in the
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* range 0-256 and is first applied to the input (for fadeouts).
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*/
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extern void (*composite_alphamask_alpha_to_packed4444_scanline)( uint8_t *output,
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uint8_t *input,
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uint8_t *mask, int width,
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int textluma, int textcb,
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int textcr, int alpha );
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/*
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* Premultiplies the colour by the alpha channel in a packed 4:4:4:4
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* scanline.
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*/
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extern void (*premultiply_packed4444_scanline)( uint8_t *output, uint8_t *input, int width );
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/*
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* Blend between two packed 4:2:2 scanline. Pos is the fade value in
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* the range 0-256. A value of 0 gives 100% src1, and a value of 256
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* gives 100% src2. Anything in between gives the appropriate faded
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* version.
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*/
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extern void (*blend_packed422_scanline)( uint8_t *output, uint8_t *src1,
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uint8_t *src2, int width, int pos );
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/*
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* Calculates the 'difference factor' for two scanlines. This is a
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* metric where higher values indicate that the two scanlines are more
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* different.
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*/
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extern unsigned int (*diff_factor_packed422_scanline)( uint8_t *cur, uint8_t *old, int width );
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/*
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* Calculates the 'comb factor' for a set of three scanlines. This is a
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* metric where higher values indicate a more likely chance that the two
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* fields are at separate points in time.
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*/
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extern unsigned int (*comb_factor_packed422_scanline)( uint8_t *top, uint8_t *mid,
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uint8_t *bot, int width );
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/*
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* Vertical [1 2 1] chroma filter.
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*/
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extern void (*vfilter_chroma_121_packed422_scanline)( uint8_t *output, int width,
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uint8_t *m, uint8_t *t, uint8_t *b );
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/*
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* Vertical [3 3 2] chroma filter.
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*/
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extern void (*vfilter_chroma_332_packed422_scanline)( uint8_t *output, int width,
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uint8_t *m, uint8_t *t, uint8_t *b );
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/*
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* Sets the chroma of the scanline to neutral (128) in-place.
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*/
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extern void (*kill_chroma_packed422_inplace_scanline)( uint8_t *data, int width );
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/*
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* Mirrors the scanline in-place.
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*/
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extern void (*mirror_packed422_inplace_scanline)( uint8_t *data, int width );
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/*
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* Inverts the colours on a scanline in-place.
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*/
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extern void (*invert_colour_packed422_inplace_scanline)( uint8_t *data, int width );
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/*
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* Fast memcpy function, used by all of the blit functions. Won't blit
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* anything if dest == src.
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*/
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extern void (*speedy_memcpy)( void *output, const void *input, size_t size );
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/*
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* Calculates the block difference metrics for dalias' pulldown
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* detection algorithm.
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*/
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extern void (*diff_packed422_block8x8)( pulldown_metrics_t *m, uint8_t *old,
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uint8_t *new, int os, int ns );
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/*
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* Takes an alpha mask and subpixelly blits it using linear
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* interpolation.
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*/
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extern void (*a8_subpix_blit_scanline)( uint8_t *output, uint8_t *input,
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int lasta, int startpos, int width );
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/*
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* 1/4 vertical subpixel blit for packed 4:2:2 scanlines using linear
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* interpolation.
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*/
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extern void (*quarter_blit_vertical_packed422_scanline)( uint8_t *output, uint8_t *one,
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uint8_t *three, int width );
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/*
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* Vertical subpixel blit for packed 4:2:2 scanlines using linear
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* interpolation.
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*/
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extern void (*subpix_blit_vertical_packed422_scanline)( uint8_t *output, uint8_t *top,
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uint8_t *bot, int subpixpos, int width );
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/*
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* Simple function to convert a 4:4:4 scanline to a 4:4:4:4 scanline by
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* adding an alpha channel. Result is non-premultiplied.
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*/
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extern void (*packed444_to_nonpremultiplied_packed4444_scanline)( uint8_t *output,
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uint8_t *input,
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int width, int alpha );
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/*
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* I think this function needs to be rethought and renamed, but here
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* it is for now. This function horizontally resamples a scanline
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* using linear interpolation to compensate for a change in pixel
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* aspect ratio.
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*/
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extern void (*aspect_adjust_packed4444_scanline)( uint8_t *output,
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uint8_t *input,
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int width,
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double pixel_aspect );
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/*
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* Convert a packed 4:4:4 surface to a packed 4:2:2 surface using
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* nearest neighbour chroma downsampling.
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*/
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extern void (*packed444_to_packed422_scanline)( uint8_t *output,
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uint8_t *input,
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int width );
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/*
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* Converts packed 4:2:2 to packed 4:4:4 scanlines using nearest
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* neighbour chroma upsampling.
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*/
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extern void (*packed422_to_packed444_scanline)( uint8_t *output,
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uint8_t *input,
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int width );
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/*
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* This filter actually does not meet the spec so calling it rec601
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* is a bit of a lie. I got the filter from Poynton's site. This
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* converts a scanline from packed 4:2:2 to packed 4:4:4. But this
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* function should point at some high quality to-the-spec resampler.
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*/
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extern void (*packed422_to_packed444_rec601_scanline)( uint8_t *dest,
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uint8_t *src,
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int width );
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/*
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* Conversions between Y'CbCr and R'G'B'. We use Rec.601 numbers
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* since our source is broadcast video, but I think there is an
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* argument to be made for switching to Rec.709.
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*/
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extern void (*packed444_to_rgb24_rec601_scanline)( uint8_t *output,
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uint8_t *input,
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int width );
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extern void (*rgb24_to_packed444_rec601_scanline)( uint8_t *output,
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uint8_t *input,
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int width );
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extern void (*rgba32_to_packed4444_rec601_scanline)( uint8_t *output,
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uint8_t *input,
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int width );
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/*
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* Convert from 4:2:2 with UYVY ordering to 4:2:2 with YUYV ordering.
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*/
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extern void (*convert_uyvy_to_yuyv_scanline)( uint8_t *uyvy_buf,
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uint8_t *yuyv_buf, int width );
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/*
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* Sets up the function pointers to point at the fastest function
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* available. Requires accelleration settings (see mm_accel.h).
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*/
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void setup_speedy_calls( uint32_t accel, int verbose );
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/*
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* Returns a bitfield of what accellerations were used when speedy was
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* initialized. See mm_accel.h.
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*/
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uint32_t speedy_get_accel( void );
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#ifdef __cplusplus
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};
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#endif
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#endif /* SPEEDY_H_INCLUDED */
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