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1285 lines
36 KiB
1285 lines
36 KiB
/* |
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* Misc image conversion routines |
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* Copyright (c) 2001, 2002, 2003 Fabrice Bellard |
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* |
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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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|
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/** |
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* @file |
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* misc image conversion routines |
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*/ |
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|
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/* TODO: |
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* - write 'ffimg' program to test all the image related stuff |
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* - move all api to slice based system |
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* - integrate deinterlacing, postprocessing and scaling in the conversion process |
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*/ |
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|
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#include "avcodec.h" |
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#include "dsputil.h" |
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#include "internal.h" |
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#include "imgconvert.h" |
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#include "libavutil/colorspace.h" |
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#include "libavutil/pixdesc.h" |
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#include "libavcore/imgutils.h" |
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|
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#if HAVE_MMX && HAVE_YASM |
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#include "x86/dsputil_mmx.h" |
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#endif |
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|
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#define xglue(x, y) x ## y |
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#define glue(x, y) xglue(x, y) |
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|
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#define FF_COLOR_RGB 0 /**< RGB color space */ |
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#define FF_COLOR_GRAY 1 /**< gray color space */ |
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#define FF_COLOR_YUV 2 /**< YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */ |
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#define FF_COLOR_YUV_JPEG 3 /**< YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */ |
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|
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#define FF_PIXEL_PLANAR 0 /**< each channel has one component in AVPicture */ |
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#define FF_PIXEL_PACKED 1 /**< only one components containing all the channels */ |
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#define FF_PIXEL_PALETTE 2 /**< one components containing indexes for a palette */ |
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|
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#if HAVE_MMX && HAVE_YASM |
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#define deinterlace_line_inplace ff_deinterlace_line_inplace_mmx |
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#define deinterlace_line ff_deinterlace_line_mmx |
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#else |
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#define deinterlace_line_inplace deinterlace_line_inplace_c |
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#define deinterlace_line deinterlace_line_c |
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#endif |
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|
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typedef struct PixFmtInfo { |
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uint8_t nb_channels; /**< number of channels (including alpha) */ |
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uint8_t color_type; /**< color type (see FF_COLOR_xxx constants) */ |
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uint8_t pixel_type; /**< pixel storage type (see FF_PIXEL_xxx constants) */ |
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uint8_t is_alpha : 1; /**< true if alpha can be specified */ |
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uint8_t depth; /**< bit depth of the color components */ |
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} PixFmtInfo; |
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|
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/* this table gives more information about formats */ |
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static const PixFmtInfo pix_fmt_info[PIX_FMT_NB] = { |
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/* YUV formats */ |
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[PIX_FMT_YUV420P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUV422P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUV444P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUYV422] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_UYVY422] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUV410P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUV411P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUV440P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUV420P16LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 16, |
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}, |
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[PIX_FMT_YUV422P16LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 16, |
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}, |
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[PIX_FMT_YUV444P16LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 16, |
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}, |
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[PIX_FMT_YUV420P16BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 16, |
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}, |
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[PIX_FMT_YUV422P16BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 16, |
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}, |
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[PIX_FMT_YUV444P16BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 16, |
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}, |
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/* YUV formats with alpha plane */ |
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[PIX_FMT_YUVA420P] = { |
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.nb_channels = 4, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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/* JPEG YUV */ |
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[PIX_FMT_YUVJ420P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV_JPEG, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUVJ422P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV_JPEG, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUVJ444P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV_JPEG, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_YUVJ440P] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_YUV_JPEG, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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|
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/* RGB formats */ |
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[PIX_FMT_RGB24] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_BGR24] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_ARGB] = { |
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.nb_channels = 4, .is_alpha = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_RGB48BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 16, |
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}, |
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[PIX_FMT_RGB48LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 16, |
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}, |
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[PIX_FMT_RGB565BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 5, |
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}, |
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[PIX_FMT_RGB565LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 5, |
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}, |
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[PIX_FMT_RGB555BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 5, |
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}, |
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[PIX_FMT_RGB555LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 5, |
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}, |
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[PIX_FMT_RGB444BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 4, |
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}, |
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[PIX_FMT_RGB444LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 4, |
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}, |
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|
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/* gray / mono formats */ |
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[PIX_FMT_GRAY16BE] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_GRAY, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 16, |
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}, |
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[PIX_FMT_GRAY16LE] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_GRAY, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 16, |
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}, |
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[PIX_FMT_GRAY8] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_GRAY, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_MONOWHITE] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_GRAY, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 1, |
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}, |
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[PIX_FMT_MONOBLACK] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_GRAY, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 1, |
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}, |
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|
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/* paletted formats */ |
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[PIX_FMT_PAL8] = { |
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.nb_channels = 4, .is_alpha = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PALETTE, |
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.depth = 8, |
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}, |
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[PIX_FMT_UYYVYY411] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_ABGR] = { |
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.nb_channels = 4, .is_alpha = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_BGR565BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 5, |
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}, |
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[PIX_FMT_BGR565LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 5, |
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}, |
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[PIX_FMT_BGR555BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 5, |
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}, |
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[PIX_FMT_BGR555LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 5, |
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}, |
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[PIX_FMT_BGR444BE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 4, |
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}, |
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[PIX_FMT_BGR444LE] = { |
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.nb_channels = 3, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 4, |
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}, |
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[PIX_FMT_RGB8] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_RGB4] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 4, |
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}, |
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[PIX_FMT_RGB4_BYTE] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_BGR8] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_BGR4] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 4, |
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}, |
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[PIX_FMT_BGR4_BYTE] = { |
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.nb_channels = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_NV12] = { |
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.nb_channels = 2, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_NV21] = { |
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.nb_channels = 2, |
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.color_type = FF_COLOR_YUV, |
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.pixel_type = FF_PIXEL_PLANAR, |
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.depth = 8, |
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}, |
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[PIX_FMT_BGRA] = { |
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.nb_channels = 4, .is_alpha = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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[PIX_FMT_RGBA] = { |
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.nb_channels = 4, .is_alpha = 1, |
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.color_type = FF_COLOR_RGB, |
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.pixel_type = FF_PIXEL_PACKED, |
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.depth = 8, |
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}, |
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}; |
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void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *v_shift) |
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{ |
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*h_shift = av_pix_fmt_descriptors[pix_fmt].log2_chroma_w; |
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*v_shift = av_pix_fmt_descriptors[pix_fmt].log2_chroma_h; |
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} |
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const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt) |
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{ |
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if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB) |
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return NULL; |
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else |
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return av_pix_fmt_descriptors[pix_fmt].name; |
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} |
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|
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#if LIBAVCODEC_VERSION_MAJOR < 53 |
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enum PixelFormat avcodec_get_pix_fmt(const char *name) |
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{ |
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return av_get_pix_fmt(name); |
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} |
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#endif |
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|
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void avcodec_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt) |
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{ |
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/* print header */ |
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if (pix_fmt < 0) |
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snprintf (buf, buf_size, |
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"name " " nb_channels" " depth" " is_alpha" |
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); |
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else{ |
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PixFmtInfo info= pix_fmt_info[pix_fmt]; |
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|
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char is_alpha_char= info.is_alpha ? 'y' : 'n'; |
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|
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snprintf (buf, buf_size, |
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"%-11s %5d %9d %6c", |
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av_pix_fmt_descriptors[pix_fmt].name, |
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info.nb_channels, |
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info.depth, |
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is_alpha_char |
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); |
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} |
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} |
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|
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int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt) |
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{ |
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return av_pix_fmt_descriptors[pix_fmt].flags & PIX_FMT_HWACCEL; |
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} |
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|
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int ff_set_systematic_pal(uint32_t pal[256], enum PixelFormat pix_fmt){ |
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int i; |
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|
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for(i=0; i<256; i++){ |
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int r,g,b; |
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|
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switch(pix_fmt) { |
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case PIX_FMT_RGB8: |
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r= (i>>5 )*36; |
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g= ((i>>2)&7)*36; |
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b= (i&3 )*85; |
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break; |
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case PIX_FMT_BGR8: |
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b= (i>>6 )*85; |
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g= ((i>>3)&7)*36; |
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r= (i&7 )*36; |
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break; |
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case PIX_FMT_RGB4_BYTE: |
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r= (i>>3 )*255; |
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g= ((i>>1)&3)*85; |
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b= (i&1 )*255; |
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break; |
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case PIX_FMT_BGR4_BYTE: |
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b= (i>>3 )*255; |
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g= ((i>>1)&3)*85; |
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r= (i&1 )*255; |
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break; |
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case PIX_FMT_GRAY8: |
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r=b=g= i; |
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break; |
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default: |
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return -1; |
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} |
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pal[i] = b + (g<<8) + (r<<16); |
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} |
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|
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return 0; |
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} |
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|
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#if LIBAVCODEC_VERSION_MAJOR < 53 |
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int ff_fill_linesize(AVPicture *picture, enum PixelFormat pix_fmt, int width) |
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{ |
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return av_fill_image_linesizes(picture->linesize, pix_fmt, width); |
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} |
|
|
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int ff_fill_pointer(AVPicture *picture, uint8_t *ptr, enum PixelFormat pix_fmt, |
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int height) |
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{ |
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return av_fill_image_pointers(picture->data, pix_fmt, height, ptr, picture->linesize); |
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} |
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#endif |
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|
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int avpicture_fill(AVPicture *picture, uint8_t *ptr, |
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enum PixelFormat pix_fmt, int width, int height) |
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{ |
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|
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if(avcodec_check_dimensions(NULL, width, height)) |
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return -1; |
|
|
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if (av_fill_image_linesizes(picture->linesize, pix_fmt, width)) |
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return -1; |
|
|
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return av_fill_image_pointers(picture->data, pix_fmt, height, ptr, picture->linesize); |
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} |
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|
|
int avpicture_layout(const AVPicture* src, enum PixelFormat pix_fmt, int width, int height, |
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unsigned char *dest, int dest_size) |
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{ |
|
const PixFmtInfo* pf = &pix_fmt_info[pix_fmt]; |
|
const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; |
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int i, j, w, ow, h, oh, data_planes; |
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const unsigned char* s; |
|
int size = avpicture_get_size(pix_fmt, width, height); |
|
|
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if (size > dest_size || size < 0) |
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return -1; |
|
|
|
if (pf->pixel_type == FF_PIXEL_PACKED || pf->pixel_type == FF_PIXEL_PALETTE) { |
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if (pix_fmt == PIX_FMT_YUYV422 || |
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pix_fmt == PIX_FMT_UYVY422 || |
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pix_fmt == PIX_FMT_BGR565BE || |
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pix_fmt == PIX_FMT_BGR565LE || |
|
pix_fmt == PIX_FMT_BGR555BE || |
|
pix_fmt == PIX_FMT_BGR555LE || |
|
pix_fmt == PIX_FMT_BGR444BE || |
|
pix_fmt == PIX_FMT_BGR444LE || |
|
pix_fmt == PIX_FMT_RGB565BE || |
|
pix_fmt == PIX_FMT_RGB565LE || |
|
pix_fmt == PIX_FMT_RGB555BE || |
|
pix_fmt == PIX_FMT_RGB555LE || |
|
pix_fmt == PIX_FMT_RGB444BE || |
|
pix_fmt == PIX_FMT_RGB444LE) |
|
w = width * 2; |
|
else if (pix_fmt == PIX_FMT_UYYVYY411) |
|
w = width + width/2; |
|
else if (pix_fmt == PIX_FMT_PAL8) |
|
w = width; |
|
else |
|
w = width * (pf->depth * pf->nb_channels / 8); |
|
|
|
data_planes = 1; |
|
h = height; |
|
} else { |
|
data_planes = pf->nb_channels; |
|
w = (width*pf->depth + 7)/8; |
|
h = height; |
|
} |
|
|
|
ow = w; |
|
oh = h; |
|
|
|
for (i=0; i<data_planes; i++) { |
|
if (i == 1) { |
|
w = (- ((-width) >> desc->log2_chroma_w) * pf->depth + 7) / 8; |
|
h = -((-height) >> desc->log2_chroma_h); |
|
if (pix_fmt == PIX_FMT_NV12 || pix_fmt == PIX_FMT_NV21) |
|
w <<= 1; |
|
} else if (i == 3) { |
|
w = ow; |
|
h = oh; |
|
} |
|
s = src->data[i]; |
|
for(j=0; j<h; j++) { |
|
memcpy(dest, s, w); |
|
dest += w; |
|
s += src->linesize[i]; |
|
} |
|
} |
|
|
|
if (pf->pixel_type == FF_PIXEL_PALETTE) |
|
memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4); |
|
|
|
return size; |
|
} |
|
|
|
int avpicture_get_size(enum PixelFormat pix_fmt, int width, int height) |
|
{ |
|
AVPicture dummy_pict; |
|
if(avcodec_check_dimensions(NULL, width, height)) |
|
return -1; |
|
switch (pix_fmt) { |
|
case PIX_FMT_RGB8: |
|
case PIX_FMT_BGR8: |
|
case PIX_FMT_RGB4_BYTE: |
|
case PIX_FMT_BGR4_BYTE: |
|
case PIX_FMT_GRAY8: |
|
// do not include palette for these pseudo-paletted formats |
|
return width * height; |
|
} |
|
return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height); |
|
} |
|
|
|
int avcodec_get_pix_fmt_loss(enum PixelFormat dst_pix_fmt, enum PixelFormat src_pix_fmt, |
|
int has_alpha) |
|
{ |
|
const PixFmtInfo *pf, *ps; |
|
const AVPixFmtDescriptor *src_desc = &av_pix_fmt_descriptors[src_pix_fmt]; |
|
const AVPixFmtDescriptor *dst_desc = &av_pix_fmt_descriptors[dst_pix_fmt]; |
|
int loss; |
|
|
|
ps = &pix_fmt_info[src_pix_fmt]; |
|
|
|
/* compute loss */ |
|
loss = 0; |
|
pf = &pix_fmt_info[dst_pix_fmt]; |
|
if (pf->depth < ps->depth || |
|
((dst_pix_fmt == PIX_FMT_RGB555BE || dst_pix_fmt == PIX_FMT_RGB555LE || |
|
dst_pix_fmt == PIX_FMT_BGR555BE || dst_pix_fmt == PIX_FMT_BGR555LE) && |
|
(src_pix_fmt == PIX_FMT_RGB565BE || src_pix_fmt == PIX_FMT_RGB565LE || |
|
src_pix_fmt == PIX_FMT_BGR565BE || src_pix_fmt == PIX_FMT_BGR565LE))) |
|
loss |= FF_LOSS_DEPTH; |
|
if (dst_desc->log2_chroma_w > src_desc->log2_chroma_w || |
|
dst_desc->log2_chroma_h > src_desc->log2_chroma_h) |
|
loss |= FF_LOSS_RESOLUTION; |
|
switch(pf->color_type) { |
|
case FF_COLOR_RGB: |
|
if (ps->color_type != FF_COLOR_RGB && |
|
ps->color_type != FF_COLOR_GRAY) |
|
loss |= FF_LOSS_COLORSPACE; |
|
break; |
|
case FF_COLOR_GRAY: |
|
if (ps->color_type != FF_COLOR_GRAY) |
|
loss |= FF_LOSS_COLORSPACE; |
|
break; |
|
case FF_COLOR_YUV: |
|
if (ps->color_type != FF_COLOR_YUV) |
|
loss |= FF_LOSS_COLORSPACE; |
|
break; |
|
case FF_COLOR_YUV_JPEG: |
|
if (ps->color_type != FF_COLOR_YUV_JPEG && |
|
ps->color_type != FF_COLOR_YUV && |
|
ps->color_type != FF_COLOR_GRAY) |
|
loss |= FF_LOSS_COLORSPACE; |
|
break; |
|
default: |
|
/* fail safe test */ |
|
if (ps->color_type != pf->color_type) |
|
loss |= FF_LOSS_COLORSPACE; |
|
break; |
|
} |
|
if (pf->color_type == FF_COLOR_GRAY && |
|
ps->color_type != FF_COLOR_GRAY) |
|
loss |= FF_LOSS_CHROMA; |
|
if (!pf->is_alpha && (ps->is_alpha && has_alpha)) |
|
loss |= FF_LOSS_ALPHA; |
|
if (pf->pixel_type == FF_PIXEL_PALETTE && |
|
(ps->pixel_type != FF_PIXEL_PALETTE && ps->color_type != FF_COLOR_GRAY)) |
|
loss |= FF_LOSS_COLORQUANT; |
|
return loss; |
|
} |
|
|
|
static int avg_bits_per_pixel(enum PixelFormat pix_fmt) |
|
{ |
|
int bits; |
|
const PixFmtInfo *pf; |
|
const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; |
|
|
|
pf = &pix_fmt_info[pix_fmt]; |
|
switch(pf->pixel_type) { |
|
case FF_PIXEL_PACKED: |
|
switch(pix_fmt) { |
|
case PIX_FMT_YUYV422: |
|
case PIX_FMT_UYVY422: |
|
case PIX_FMT_RGB565BE: |
|
case PIX_FMT_RGB565LE: |
|
case PIX_FMT_RGB555BE: |
|
case PIX_FMT_RGB555LE: |
|
case PIX_FMT_RGB444BE: |
|
case PIX_FMT_RGB444LE: |
|
case PIX_FMT_BGR565BE: |
|
case PIX_FMT_BGR565LE: |
|
case PIX_FMT_BGR555BE: |
|
case PIX_FMT_BGR555LE: |
|
case PIX_FMT_BGR444BE: |
|
case PIX_FMT_BGR444LE: |
|
bits = 16; |
|
break; |
|
case PIX_FMT_UYYVYY411: |
|
bits = 12; |
|
break; |
|
default: |
|
bits = pf->depth * pf->nb_channels; |
|
break; |
|
} |
|
break; |
|
case FF_PIXEL_PLANAR: |
|
if (desc->log2_chroma_w == 0 && desc->log2_chroma_h == 0) { |
|
bits = pf->depth * pf->nb_channels; |
|
} else { |
|
bits = pf->depth + ((2 * pf->depth) >> |
|
(desc->log2_chroma_w + desc->log2_chroma_h)); |
|
} |
|
break; |
|
case FF_PIXEL_PALETTE: |
|
bits = 8; |
|
break; |
|
default: |
|
bits = -1; |
|
break; |
|
} |
|
return bits; |
|
} |
|
|
|
static enum PixelFormat avcodec_find_best_pix_fmt1(int64_t pix_fmt_mask, |
|
enum PixelFormat src_pix_fmt, |
|
int has_alpha, |
|
int loss_mask) |
|
{ |
|
int dist, i, loss, min_dist; |
|
enum PixelFormat dst_pix_fmt; |
|
|
|
/* find exact color match with smallest size */ |
|
dst_pix_fmt = PIX_FMT_NONE; |
|
min_dist = 0x7fffffff; |
|
for(i = 0;i < PIX_FMT_NB; i++) { |
|
if (pix_fmt_mask & (1ULL << i)) { |
|
loss = avcodec_get_pix_fmt_loss(i, src_pix_fmt, has_alpha) & loss_mask; |
|
if (loss == 0) { |
|
dist = avg_bits_per_pixel(i); |
|
if (dist < min_dist) { |
|
min_dist = dist; |
|
dst_pix_fmt = i; |
|
} |
|
} |
|
} |
|
} |
|
return dst_pix_fmt; |
|
} |
|
|
|
enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelFormat src_pix_fmt, |
|
int has_alpha, int *loss_ptr) |
|
{ |
|
enum PixelFormat dst_pix_fmt; |
|
int loss_mask, i; |
|
static const int loss_mask_order[] = { |
|
~0, /* no loss first */ |
|
~FF_LOSS_ALPHA, |
|
~FF_LOSS_RESOLUTION, |
|
~(FF_LOSS_COLORSPACE | FF_LOSS_RESOLUTION), |
|
~FF_LOSS_COLORQUANT, |
|
~FF_LOSS_DEPTH, |
|
0, |
|
}; |
|
|
|
/* try with successive loss */ |
|
i = 0; |
|
for(;;) { |
|
loss_mask = loss_mask_order[i++]; |
|
dst_pix_fmt = avcodec_find_best_pix_fmt1(pix_fmt_mask, src_pix_fmt, |
|
has_alpha, loss_mask); |
|
if (dst_pix_fmt >= 0) |
|
goto found; |
|
if (loss_mask == 0) |
|
break; |
|
} |
|
return PIX_FMT_NONE; |
|
found: |
|
if (loss_ptr) |
|
*loss_ptr = avcodec_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha); |
|
return dst_pix_fmt; |
|
} |
|
|
|
void ff_img_copy_plane(uint8_t *dst, int dst_wrap, |
|
const uint8_t *src, int src_wrap, |
|
int width, int height) |
|
{ |
|
if((!dst) || (!src)) |
|
return; |
|
for(;height > 0; height--) { |
|
memcpy(dst, src, width); |
|
dst += dst_wrap; |
|
src += src_wrap; |
|
} |
|
} |
|
|
|
int ff_get_plane_bytewidth(enum PixelFormat pix_fmt, int width, int plane) |
|
{ |
|
int bits; |
|
const PixFmtInfo *pf = &pix_fmt_info[pix_fmt]; |
|
const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; |
|
|
|
pf = &pix_fmt_info[pix_fmt]; |
|
switch(pf->pixel_type) { |
|
case FF_PIXEL_PACKED: |
|
switch(pix_fmt) { |
|
case PIX_FMT_YUYV422: |
|
case PIX_FMT_UYVY422: |
|
case PIX_FMT_RGB565BE: |
|
case PIX_FMT_RGB565LE: |
|
case PIX_FMT_RGB555BE: |
|
case PIX_FMT_RGB555LE: |
|
case PIX_FMT_RGB444BE: |
|
case PIX_FMT_RGB444LE: |
|
case PIX_FMT_BGR565BE: |
|
case PIX_FMT_BGR565LE: |
|
case PIX_FMT_BGR555BE: |
|
case PIX_FMT_BGR555LE: |
|
case PIX_FMT_BGR444BE: |
|
case PIX_FMT_BGR444LE: |
|
bits = 16; |
|
break; |
|
case PIX_FMT_UYYVYY411: |
|
bits = 12; |
|
break; |
|
default: |
|
bits = pf->depth * pf->nb_channels; |
|
break; |
|
} |
|
return (width * bits + 7) >> 3; |
|
break; |
|
case FF_PIXEL_PLANAR: |
|
if ((pix_fmt != PIX_FMT_NV12 && pix_fmt != PIX_FMT_NV21) && |
|
(plane == 1 || plane == 2)) |
|
width= -((-width)>>desc->log2_chroma_w); |
|
|
|
return (width * pf->depth + 7) >> 3; |
|
break; |
|
case FF_PIXEL_PALETTE: |
|
if (plane == 0) |
|
return width; |
|
break; |
|
} |
|
|
|
return -1; |
|
} |
|
|
|
void av_picture_copy(AVPicture *dst, const AVPicture *src, |
|
enum PixelFormat pix_fmt, int width, int height) |
|
{ |
|
int i; |
|
const PixFmtInfo *pf = &pix_fmt_info[pix_fmt]; |
|
const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; |
|
|
|
switch(pf->pixel_type) { |
|
case FF_PIXEL_PACKED: |
|
case FF_PIXEL_PLANAR: |
|
for(i = 0; i < pf->nb_channels; i++) { |
|
int h; |
|
int bwidth = ff_get_plane_bytewidth(pix_fmt, width, i); |
|
h = height; |
|
if (i == 1 || i == 2) { |
|
h= -((-height)>>desc->log2_chroma_h); |
|
} |
|
ff_img_copy_plane(dst->data[i], dst->linesize[i], |
|
src->data[i], src->linesize[i], |
|
bwidth, h); |
|
} |
|
break; |
|
case FF_PIXEL_PALETTE: |
|
ff_img_copy_plane(dst->data[0], dst->linesize[0], |
|
src->data[0], src->linesize[0], |
|
width, height); |
|
/* copy the palette */ |
|
memcpy(dst->data[1], src->data[1], 4*256); |
|
break; |
|
} |
|
} |
|
|
|
/* 2x2 -> 1x1 */ |
|
void ff_shrink22(uint8_t *dst, int dst_wrap, |
|
const uint8_t *src, int src_wrap, |
|
int width, int height) |
|
{ |
|
int w; |
|
const uint8_t *s1, *s2; |
|
uint8_t *d; |
|
|
|
for(;height > 0; height--) { |
|
s1 = src; |
|
s2 = s1 + src_wrap; |
|
d = dst; |
|
for(w = width;w >= 4; w-=4) { |
|
d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2; |
|
d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 2; |
|
d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 2; |
|
d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 2; |
|
s1 += 8; |
|
s2 += 8; |
|
d += 4; |
|
} |
|
for(;w > 0; w--) { |
|
d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2; |
|
s1 += 2; |
|
s2 += 2; |
|
d++; |
|
} |
|
src += 2 * src_wrap; |
|
dst += dst_wrap; |
|
} |
|
} |
|
|
|
/* 4x4 -> 1x1 */ |
|
void ff_shrink44(uint8_t *dst, int dst_wrap, |
|
const uint8_t *src, int src_wrap, |
|
int width, int height) |
|
{ |
|
int w; |
|
const uint8_t *s1, *s2, *s3, *s4; |
|
uint8_t *d; |
|
|
|
for(;height > 0; height--) { |
|
s1 = src; |
|
s2 = s1 + src_wrap; |
|
s3 = s2 + src_wrap; |
|
s4 = s3 + src_wrap; |
|
d = dst; |
|
for(w = width;w > 0; w--) { |
|
d[0] = (s1[0] + s1[1] + s1[2] + s1[3] + |
|
s2[0] + s2[1] + s2[2] + s2[3] + |
|
s3[0] + s3[1] + s3[2] + s3[3] + |
|
s4[0] + s4[1] + s4[2] + s4[3] + 8) >> 4; |
|
s1 += 4; |
|
s2 += 4; |
|
s3 += 4; |
|
s4 += 4; |
|
d++; |
|
} |
|
src += 4 * src_wrap; |
|
dst += dst_wrap; |
|
} |
|
} |
|
|
|
/* 8x8 -> 1x1 */ |
|
void ff_shrink88(uint8_t *dst, int dst_wrap, |
|
const uint8_t *src, int src_wrap, |
|
int width, int height) |
|
{ |
|
int w, i; |
|
|
|
for(;height > 0; height--) { |
|
for(w = width;w > 0; w--) { |
|
int tmp=0; |
|
for(i=0; i<8; i++){ |
|
tmp += src[0] + src[1] + src[2] + src[3] + src[4] + src[5] + src[6] + src[7]; |
|
src += src_wrap; |
|
} |
|
*(dst++) = (tmp + 32)>>6; |
|
src += 8 - 8*src_wrap; |
|
} |
|
src += 8*src_wrap - 8*width; |
|
dst += dst_wrap - width; |
|
} |
|
} |
|
|
|
|
|
int avpicture_alloc(AVPicture *picture, |
|
enum PixelFormat pix_fmt, int width, int height) |
|
{ |
|
int size; |
|
void *ptr; |
|
|
|
size = avpicture_fill(picture, NULL, pix_fmt, width, height); |
|
if(size<0) |
|
goto fail; |
|
ptr = av_malloc(size); |
|
if (!ptr) |
|
goto fail; |
|
avpicture_fill(picture, ptr, pix_fmt, width, height); |
|
if(picture->data[1] && !picture->data[2]) |
|
ff_set_systematic_pal((uint32_t*)picture->data[1], pix_fmt); |
|
|
|
return 0; |
|
fail: |
|
memset(picture, 0, sizeof(AVPicture)); |
|
return -1; |
|
} |
|
|
|
void avpicture_free(AVPicture *picture) |
|
{ |
|
av_free(picture->data[0]); |
|
} |
|
|
|
/* return true if yuv planar */ |
|
static inline int is_yuv_planar(const PixFmtInfo *ps) |
|
{ |
|
return (ps->color_type == FF_COLOR_YUV || |
|
ps->color_type == FF_COLOR_YUV_JPEG) && |
|
ps->pixel_type == FF_PIXEL_PLANAR; |
|
} |
|
|
|
int av_picture_crop(AVPicture *dst, const AVPicture *src, |
|
enum PixelFormat pix_fmt, int top_band, int left_band) |
|
{ |
|
int y_shift; |
|
int x_shift; |
|
|
|
if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB || !is_yuv_planar(&pix_fmt_info[pix_fmt])) |
|
return -1; |
|
|
|
y_shift = av_pix_fmt_descriptors[pix_fmt].log2_chroma_h; |
|
x_shift = av_pix_fmt_descriptors[pix_fmt].log2_chroma_w; |
|
|
|
dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + left_band; |
|
dst->data[1] = src->data[1] + ((top_band >> y_shift) * src->linesize[1]) + (left_band >> x_shift); |
|
dst->data[2] = src->data[2] + ((top_band >> y_shift) * src->linesize[2]) + (left_band >> x_shift); |
|
|
|
dst->linesize[0] = src->linesize[0]; |
|
dst->linesize[1] = src->linesize[1]; |
|
dst->linesize[2] = src->linesize[2]; |
|
return 0; |
|
} |
|
|
|
int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, |
|
enum PixelFormat pix_fmt, int padtop, int padbottom, int padleft, int padright, |
|
int *color) |
|
{ |
|
uint8_t *optr; |
|
int y_shift; |
|
int x_shift; |
|
int yheight; |
|
int i, y; |
|
|
|
if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB || |
|
!is_yuv_planar(&pix_fmt_info[pix_fmt])) return -1; |
|
|
|
for (i = 0; i < 3; i++) { |
|
x_shift = i ? av_pix_fmt_descriptors[pix_fmt].log2_chroma_w : 0; |
|
y_shift = i ? av_pix_fmt_descriptors[pix_fmt].log2_chroma_h : 0; |
|
|
|
if (padtop || padleft) { |
|
memset(dst->data[i], color[i], |
|
dst->linesize[i] * (padtop >> y_shift) + (padleft >> x_shift)); |
|
} |
|
|
|
if (padleft || padright) { |
|
optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) + |
|
(dst->linesize[i] - (padright >> x_shift)); |
|
yheight = (height - 1 - (padtop + padbottom)) >> y_shift; |
|
for (y = 0; y < yheight; y++) { |
|
memset(optr, color[i], (padleft + padright) >> x_shift); |
|
optr += dst->linesize[i]; |
|
} |
|
} |
|
|
|
if (src) { /* first line */ |
|
uint8_t *iptr = src->data[i]; |
|
optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) + |
|
(padleft >> x_shift); |
|
memcpy(optr, iptr, (width - padleft - padright) >> x_shift); |
|
iptr += src->linesize[i]; |
|
optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) + |
|
(dst->linesize[i] - (padright >> x_shift)); |
|
yheight = (height - 1 - (padtop + padbottom)) >> y_shift; |
|
for (y = 0; y < yheight; y++) { |
|
memset(optr, color[i], (padleft + padright) >> x_shift); |
|
memcpy(optr + ((padleft + padright) >> x_shift), iptr, |
|
(width - padleft - padright) >> x_shift); |
|
iptr += src->linesize[i]; |
|
optr += dst->linesize[i]; |
|
} |
|
} |
|
|
|
if (padbottom || padright) { |
|
optr = dst->data[i] + dst->linesize[i] * |
|
((height - padbottom) >> y_shift) - (padright >> x_shift); |
|
memset(optr, color[i],dst->linesize[i] * |
|
(padbottom >> y_shift) + (padright >> x_shift)); |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
/* NOTE: we scan all the pixels to have an exact information */ |
|
static int get_alpha_info_pal8(const AVPicture *src, int width, int height) |
|
{ |
|
const unsigned char *p; |
|
int src_wrap, ret, x, y; |
|
unsigned int a; |
|
uint32_t *palette = (uint32_t *)src->data[1]; |
|
|
|
p = src->data[0]; |
|
src_wrap = src->linesize[0] - width; |
|
ret = 0; |
|
for(y=0;y<height;y++) { |
|
for(x=0;x<width;x++) { |
|
a = palette[p[0]] >> 24; |
|
if (a == 0x00) { |
|
ret |= FF_ALPHA_TRANSP; |
|
} else if (a != 0xff) { |
|
ret |= FF_ALPHA_SEMI_TRANSP; |
|
} |
|
p++; |
|
} |
|
p += src_wrap; |
|
} |
|
return ret; |
|
} |
|
|
|
int img_get_alpha_info(const AVPicture *src, |
|
enum PixelFormat pix_fmt, int width, int height) |
|
{ |
|
const PixFmtInfo *pf = &pix_fmt_info[pix_fmt]; |
|
int ret; |
|
|
|
/* no alpha can be represented in format */ |
|
if (!pf->is_alpha) |
|
return 0; |
|
switch(pix_fmt) { |
|
case PIX_FMT_PAL8: |
|
ret = get_alpha_info_pal8(src, width, height); |
|
break; |
|
default: |
|
/* we do not know, so everything is indicated */ |
|
ret = FF_ALPHA_TRANSP | FF_ALPHA_SEMI_TRANSP; |
|
break; |
|
} |
|
return ret; |
|
} |
|
|
|
#if !(HAVE_MMX && HAVE_YASM) |
|
/* filter parameters: [-1 4 2 4 -1] // 8 */ |
|
static void deinterlace_line_c(uint8_t *dst, |
|
const uint8_t *lum_m4, const uint8_t *lum_m3, |
|
const uint8_t *lum_m2, const uint8_t *lum_m1, |
|
const uint8_t *lum, |
|
int size) |
|
{ |
|
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; |
|
int sum; |
|
|
|
for(;size > 0;size--) { |
|
sum = -lum_m4[0]; |
|
sum += lum_m3[0] << 2; |
|
sum += lum_m2[0] << 1; |
|
sum += lum_m1[0] << 2; |
|
sum += -lum[0]; |
|
dst[0] = cm[(sum + 4) >> 3]; |
|
lum_m4++; |
|
lum_m3++; |
|
lum_m2++; |
|
lum_m1++; |
|
lum++; |
|
dst++; |
|
} |
|
} |
|
|
|
static void deinterlace_line_inplace_c(uint8_t *lum_m4, uint8_t *lum_m3, |
|
uint8_t *lum_m2, uint8_t *lum_m1, |
|
uint8_t *lum, int size) |
|
{ |
|
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; |
|
int sum; |
|
|
|
for(;size > 0;size--) { |
|
sum = -lum_m4[0]; |
|
sum += lum_m3[0] << 2; |
|
sum += lum_m2[0] << 1; |
|
lum_m4[0]=lum_m2[0]; |
|
sum += lum_m1[0] << 2; |
|
sum += -lum[0]; |
|
lum_m2[0] = cm[(sum + 4) >> 3]; |
|
lum_m4++; |
|
lum_m3++; |
|
lum_m2++; |
|
lum_m1++; |
|
lum++; |
|
} |
|
} |
|
#endif |
|
|
|
/* deinterlacing : 2 temporal taps, 3 spatial taps linear filter. The |
|
top field is copied as is, but the bottom field is deinterlaced |
|
against the top field. */ |
|
static void deinterlace_bottom_field(uint8_t *dst, int dst_wrap, |
|
const uint8_t *src1, int src_wrap, |
|
int width, int height) |
|
{ |
|
const uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2; |
|
int y; |
|
|
|
src_m2 = src1; |
|
src_m1 = src1; |
|
src_0=&src_m1[src_wrap]; |
|
src_p1=&src_0[src_wrap]; |
|
src_p2=&src_p1[src_wrap]; |
|
for(y=0;y<(height-2);y+=2) { |
|
memcpy(dst,src_m1,width); |
|
dst += dst_wrap; |
|
deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width); |
|
src_m2 = src_0; |
|
src_m1 = src_p1; |
|
src_0 = src_p2; |
|
src_p1 += 2*src_wrap; |
|
src_p2 += 2*src_wrap; |
|
dst += dst_wrap; |
|
} |
|
memcpy(dst,src_m1,width); |
|
dst += dst_wrap; |
|
/* do last line */ |
|
deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width); |
|
} |
|
|
|
static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap, |
|
int width, int height) |
|
{ |
|
uint8_t *src_m1, *src_0, *src_p1, *src_p2; |
|
int y; |
|
uint8_t *buf; |
|
buf = (uint8_t*)av_malloc(width); |
|
|
|
src_m1 = src1; |
|
memcpy(buf,src_m1,width); |
|
src_0=&src_m1[src_wrap]; |
|
src_p1=&src_0[src_wrap]; |
|
src_p2=&src_p1[src_wrap]; |
|
for(y=0;y<(height-2);y+=2) { |
|
deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width); |
|
src_m1 = src_p1; |
|
src_0 = src_p2; |
|
src_p1 += 2*src_wrap; |
|
src_p2 += 2*src_wrap; |
|
} |
|
/* do last line */ |
|
deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width); |
|
av_free(buf); |
|
} |
|
|
|
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src, |
|
enum PixelFormat pix_fmt, int width, int height) |
|
{ |
|
int i; |
|
|
|
if (pix_fmt != PIX_FMT_YUV420P && |
|
pix_fmt != PIX_FMT_YUV422P && |
|
pix_fmt != PIX_FMT_YUV444P && |
|
pix_fmt != PIX_FMT_YUV411P && |
|
pix_fmt != PIX_FMT_GRAY8) |
|
return -1; |
|
if ((width & 3) != 0 || (height & 3) != 0) |
|
return -1; |
|
|
|
for(i=0;i<3;i++) { |
|
if (i == 1) { |
|
switch(pix_fmt) { |
|
case PIX_FMT_YUV420P: |
|
width >>= 1; |
|
height >>= 1; |
|
break; |
|
case PIX_FMT_YUV422P: |
|
width >>= 1; |
|
break; |
|
case PIX_FMT_YUV411P: |
|
width >>= 2; |
|
break; |
|
default: |
|
break; |
|
} |
|
if (pix_fmt == PIX_FMT_GRAY8) { |
|
break; |
|
} |
|
} |
|
if (src == dst) { |
|
deinterlace_bottom_field_inplace(dst->data[i], dst->linesize[i], |
|
width, height); |
|
} else { |
|
deinterlace_bottom_field(dst->data[i],dst->linesize[i], |
|
src->data[i], src->linesize[i], |
|
width, height); |
|
} |
|
} |
|
emms_c(); |
|
return 0; |
|
} |
|
|
|
|