2001-07-22 14:18:56 +00:00
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/*
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2007-07-17 12:57:50 +00:00
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* Misc image conversion routines
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2009-01-19 15:46:40 +00:00
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* Copyright (c) 2001, 2002, 2003 Fabrice Bellard
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2001-07-22 14:18:56 +00:00
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*
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2006-10-07 15:30:46 +00:00
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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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2002-05-25 22:45:33 +00:00
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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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2006-10-07 15:30:46 +00:00
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* version 2.1 of the License, or (at your option) any later version.
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2001-07-22 14:18:56 +00:00
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*
|
2006-10-07 15:30:46 +00:00
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* FFmpeg is distributed in the hope that it will be useful,
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2001-07-22 14:18:56 +00:00
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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2002-05-25 22:45:33 +00:00
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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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2001-07-22 14:18:56 +00:00
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*
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2002-05-25 22:45:33 +00:00
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* You should have received a copy of the GNU Lesser General Public
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2006-10-07 15:30:46 +00:00
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* License along with FFmpeg; if not, write to the Free Software
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2006-01-12 22:43:26 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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2001-07-22 14:18:56 +00:00
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*/
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2003-03-06 11:32:04 +00:00
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/**
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2010-04-20 14:45:34 +00:00
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* @file
|
2007-07-17 12:57:50 +00:00
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* misc image conversion routines
|
2003-03-06 11:32:04 +00:00
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*/
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2003-04-21 12:12:58 +00:00
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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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2003-03-06 11:32:04 +00:00
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2001-07-22 14:18:56 +00:00
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#include "avcodec.h"
|
2001-08-11 19:03:02 +00:00
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#include "dsputil.h"
|
2013-02-07 20:43:58 +00:00
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#include "imgconvert.h"
|
2010-02-28 03:52:10 +00:00
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#include "internal.h"
|
2012-11-14 10:59:25 +00:00
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#include "libavutil/avassert.h"
|
2010-07-01 18:49:44 +00:00
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#include "libavutil/colorspace.h"
|
2012-08-06 13:49:32 +00:00
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#include "libavutil/common.h"
|
2009-11-25 23:52:20 +00:00
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#include "libavutil/pixdesc.h"
|
2011-02-07 13:37:08 +00:00
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#include "libavutil/imgutils.h"
|
2001-07-22 14:18:56 +00:00
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2012-08-28 12:53:33 +00:00
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#if HAVE_MMX_EXTERNAL
|
2013-05-07 23:52:57 +00:00
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#include "x86/dsputil_x86.h"
|
2002-10-30 09:09:34 +00:00
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#endif
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2003-01-11 00:08:48 +00:00
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|
2012-11-21 16:37:32 +00:00
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#define FF_COLOR_NA -1
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2007-02-20 08:35:25 +00:00
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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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2003-04-20 16:18:44 +00:00
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|
2012-08-28 12:53:33 +00:00
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#if HAVE_MMX_EXTERNAL
|
2010-07-31 14:50:51 +00:00
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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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|
2012-03-08 13:40:30 +00:00
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#define pixdesc_has_alpha(pixdesc) \
|
2013-05-15 09:23:14 +00:00
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((pixdesc)->nb_components == 2 || (pixdesc)->nb_components == 4 || (pixdesc)->flags & AV_PIX_FMT_FLAG_PAL)
|
2012-03-08 13:40:30 +00:00
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|
2003-01-11 00:08:48 +00:00
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|
2012-10-06 10:10:34 +00:00
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void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
|
2003-01-11 00:08:48 +00:00
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{
|
2012-10-06 11:29:37 +00:00
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
|
2012-11-14 10:59:25 +00:00
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av_assert0(desc);
|
2012-10-06 11:29:37 +00:00
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*h_shift = desc->log2_chroma_w;
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*v_shift = desc->log2_chroma_h;
|
2003-01-11 00:08:48 +00:00
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}
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|
2012-12-26 00:36:00 +00:00
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static int get_color_type(const AVPixFmtDescriptor *desc) {
|
2013-10-02 16:11:28 +00:00
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if (desc->flags & AV_PIX_FMT_FLAG_PAL)
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return FF_COLOR_RGB;
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|
2012-11-21 16:22:25 +00:00
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if(desc->nb_components == 1 || desc->nb_components == 2)
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return FF_COLOR_GRAY;
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if(desc->name && !strncmp(desc->name, "yuvj", 4))
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return FF_COLOR_YUV_JPEG;
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|
2013-05-15 08:50:20 +00:00
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if(desc->flags & AV_PIX_FMT_FLAG_RGB)
|
2012-11-21 16:22:25 +00:00
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return FF_COLOR_RGB;
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if(desc->nb_components == 0)
|
2012-11-21 16:37:32 +00:00
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return FF_COLOR_NA;
|
2012-11-21 16:22:25 +00:00
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return FF_COLOR_YUV;
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}
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|
2012-10-08 18:54:00 +00:00
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static int get_pix_fmt_depth(int *min, int *max, enum AVPixelFormat pix_fmt)
|
2011-07-24 13:38:59 +00:00
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{
|
2012-10-06 11:29:37 +00:00
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
|
2011-07-24 13:38:59 +00:00
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int i;
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|
2012-10-12 14:48:26 +00:00
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if (!desc || !desc->nb_components) {
|
2011-07-24 13:38:59 +00:00
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*min = *max = 0;
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return AVERROR(EINVAL);
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}
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*min = INT_MAX, *max = -INT_MAX;
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for (i = 0; i < desc->nb_components; i++) {
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*min = FFMIN(desc->comp[i].depth_minus1+1, *min);
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*max = FFMAX(desc->comp[i].depth_minus1+1, *max);
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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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|
2013-02-10 00:04:57 +00:00
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|
static int get_pix_fmt_score(enum AVPixelFormat dst_pix_fmt,
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enum AVPixelFormat src_pix_fmt,
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unsigned *lossp, unsigned consider)
|
2003-04-20 16:18:44 +00:00
|
|
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{
|
2012-10-06 11:29:37 +00:00
|
|
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const AVPixFmtDescriptor *src_desc = av_pix_fmt_desc_get(src_pix_fmt);
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const AVPixFmtDescriptor *dst_desc = av_pix_fmt_desc_get(dst_pix_fmt);
|
2012-11-21 16:22:25 +00:00
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int src_color, dst_color;
|
2011-07-24 13:38:59 +00:00
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int src_min_depth, src_max_depth, dst_min_depth, dst_max_depth;
|
2012-11-21 17:00:56 +00:00
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int ret, loss, i, nb_components;
|
2013-06-29 20:20:20 +00:00
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int score = INT_MAX - 1;
|
2003-04-20 16:18:44 +00:00
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|
2012-10-08 18:54:00 +00:00
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if (dst_pix_fmt >= AV_PIX_FMT_NB || dst_pix_fmt <= AV_PIX_FMT_NONE)
|
2011-09-01 00:01:54 +00:00
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return ~0;
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|
2003-04-20 16:18:44 +00:00
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/* compute loss */
|
2013-02-10 00:04:57 +00:00
|
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|
*lossp = loss = 0;
|
2011-07-24 13:38:59 +00:00
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|
2012-11-17 19:34:41 +00:00
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if (dst_pix_fmt == src_pix_fmt)
|
2013-02-10 00:04:57 +00:00
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return INT_MAX;
|
2012-11-17 19:34:41 +00:00
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|
2011-07-24 13:38:59 +00:00
|
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if ((ret = get_pix_fmt_depth(&src_min_depth, &src_max_depth, src_pix_fmt)) < 0)
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return ret;
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|
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if ((ret = get_pix_fmt_depth(&dst_min_depth, &dst_max_depth, dst_pix_fmt)) < 0)
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return ret;
|
2012-11-21 16:22:25 +00:00
|
|
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|
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|
src_color = get_color_type(src_desc);
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dst_color = get_color_type(dst_desc);
|
2012-11-21 17:00:56 +00:00
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nb_components = FFMIN(src_desc->nb_components, dst_desc->nb_components);
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|
2012-11-17 19:34:41 +00:00
|
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for (i = 0; i < nb_components; i++)
|
2013-02-10 00:04:57 +00:00
|
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if (src_desc->comp[i].depth_minus1 > dst_desc->comp[i].depth_minus1 && (consider & FF_LOSS_DEPTH)) {
|
2012-11-17 19:34:41 +00:00
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loss |= FF_LOSS_DEPTH;
|
2013-02-10 00:04:57 +00:00
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score -= 65536 >> dst_desc->comp[i].depth_minus1;
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}
|
|
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|
|
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if (consider & FF_LOSS_RESOLUTION) {
|
|
|
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if (dst_desc->log2_chroma_w > src_desc->log2_chroma_w) {
|
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loss |= FF_LOSS_RESOLUTION;
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score -= 256 << dst_desc->log2_chroma_w;
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}
|
|
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if (dst_desc->log2_chroma_h > src_desc->log2_chroma_h) {
|
|
|
|
loss |= FF_LOSS_RESOLUTION;
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|
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score -= 256 << dst_desc->log2_chroma_h;
|
|
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|
}
|
2013-06-29 00:24:26 +00:00
|
|
|
// don't favor 422 over 420 if downsampling is needed, because 420 has much better support on the decoder side
|
2013-02-10 00:04:57 +00:00
|
|
|
if (dst_desc->log2_chroma_w == 1 && src_desc->log2_chroma_w == 0 &&
|
|
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dst_desc->log2_chroma_h == 1 && src_desc->log2_chroma_h == 0 ) {
|
|
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score += 512;
|
|
|
|
}
|
|
|
|
}
|
2012-11-21 16:22:25 +00:00
|
|
|
|
2013-02-10 00:04:57 +00:00
|
|
|
if(consider & FF_LOSS_COLORSPACE)
|
2012-11-21 16:22:25 +00:00
|
|
|
switch(dst_color) {
|
2003-04-20 16:18:44 +00:00
|
|
|
case FF_COLOR_RGB:
|
2012-11-21 16:22:25 +00:00
|
|
|
if (src_color != FF_COLOR_RGB &&
|
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src_color != FF_COLOR_GRAY)
|
2003-04-20 16:18:44 +00:00
|
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|
loss |= FF_LOSS_COLORSPACE;
|
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|
break;
|
|
|
|
case FF_COLOR_GRAY:
|
2012-11-21 16:22:25 +00:00
|
|
|
if (src_color != FF_COLOR_GRAY)
|
2003-04-20 16:18:44 +00:00
|
|
|
loss |= FF_LOSS_COLORSPACE;
|
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|
break;
|
|
|
|
case FF_COLOR_YUV:
|
2012-11-21 16:22:25 +00:00
|
|
|
if (src_color != FF_COLOR_YUV)
|
2003-04-20 16:18:44 +00:00
|
|
|
loss |= FF_LOSS_COLORSPACE;
|
|
|
|
break;
|
|
|
|
case FF_COLOR_YUV_JPEG:
|
2012-11-21 16:22:25 +00:00
|
|
|
if (src_color != FF_COLOR_YUV_JPEG &&
|
|
|
|
src_color != FF_COLOR_YUV &&
|
|
|
|
src_color != FF_COLOR_GRAY)
|
2003-04-20 16:18:44 +00:00
|
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|
loss |= FF_LOSS_COLORSPACE;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/* fail safe test */
|
2012-11-21 16:22:25 +00:00
|
|
|
if (src_color != dst_color)
|
2003-04-20 16:18:44 +00:00
|
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loss |= FF_LOSS_COLORSPACE;
|
|
|
|
break;
|
|
|
|
}
|
2013-02-10 00:04:57 +00:00
|
|
|
if(loss & FF_LOSS_COLORSPACE)
|
|
|
|
score -= (nb_components * 65536) >> FFMIN(dst_desc->comp[0].depth_minus1, src_desc->comp[0].depth_minus1);
|
|
|
|
|
2012-11-21 16:22:25 +00:00
|
|
|
if (dst_color == FF_COLOR_GRAY &&
|
2013-02-10 00:04:57 +00:00
|
|
|
src_color != FF_COLOR_GRAY && (consider & FF_LOSS_CHROMA)) {
|
2003-04-20 16:18:44 +00:00
|
|
|
loss |= FF_LOSS_CHROMA;
|
2013-02-10 00:04:57 +00:00
|
|
|
score -= 2 * 65536;
|
|
|
|
}
|
|
|
|
if (!pixdesc_has_alpha(dst_desc) && (pixdesc_has_alpha(src_desc) && (consider & FF_LOSS_ALPHA))) {
|
2003-04-20 16:18:44 +00:00
|
|
|
loss |= FF_LOSS_ALPHA;
|
2013-02-10 00:04:57 +00:00
|
|
|
score -= 65536;
|
|
|
|
}
|
|
|
|
if (dst_pix_fmt == AV_PIX_FMT_PAL8 && (consider & FF_LOSS_COLORQUANT) &&
|
|
|
|
(src_pix_fmt != AV_PIX_FMT_PAL8 && (src_color != FF_COLOR_GRAY || (pixdesc_has_alpha(src_desc) && (consider & FF_LOSS_ALPHA))))) {
|
2003-04-20 16:18:44 +00:00
|
|
|
loss |= FF_LOSS_COLORQUANT;
|
2013-02-10 00:04:57 +00:00
|
|
|
score -= 65536;
|
|
|
|
}
|
|
|
|
|
|
|
|
*lossp = loss;
|
|
|
|
return score;
|
|
|
|
}
|
2012-01-18 14:51:09 +00:00
|
|
|
|
2013-02-10 00:04:57 +00:00
|
|
|
int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt,
|
|
|
|
enum AVPixelFormat src_pix_fmt,
|
|
|
|
int has_alpha)
|
|
|
|
{
|
|
|
|
int loss;
|
|
|
|
int ret = get_pix_fmt_score(dst_pix_fmt, src_pix_fmt, &loss, has_alpha ? ~0 : ~FF_LOSS_ALPHA);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2003-04-20 16:18:44 +00:00
|
|
|
return loss;
|
|
|
|
}
|
|
|
|
|
2012-10-08 18:54:00 +00:00
|
|
|
enum AVPixelFormat avcodec_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
|
|
|
|
enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
|
2011-08-26 17:03:50 +00:00
|
|
|
{
|
2012-10-06 10:10:34 +00:00
|
|
|
enum AVPixelFormat dst_pix_fmt;
|
2013-02-10 00:19:25 +00:00
|
|
|
int loss1, loss2, loss_mask;
|
2012-11-21 15:59:37 +00:00
|
|
|
const AVPixFmtDescriptor *desc1 = av_pix_fmt_desc_get(dst_pix_fmt1);
|
|
|
|
const AVPixFmtDescriptor *desc2 = av_pix_fmt_desc_get(dst_pix_fmt2);
|
2013-02-10 00:19:25 +00:00
|
|
|
int score1, score2;
|
2003-04-20 16:18:44 +00:00
|
|
|
|
2011-08-26 17:03:50 +00:00
|
|
|
loss_mask= loss_ptr?~*loss_ptr:~0; /* use loss mask if provided */
|
2013-02-10 00:19:25 +00:00
|
|
|
if(!has_alpha)
|
|
|
|
loss_mask &= ~FF_LOSS_ALPHA;
|
|
|
|
|
2012-10-08 18:54:00 +00:00
|
|
|
dst_pix_fmt = AV_PIX_FMT_NONE;
|
2013-02-10 00:19:25 +00:00
|
|
|
score1 = get_pix_fmt_score(dst_pix_fmt1, src_pix_fmt, &loss1, loss_mask);
|
|
|
|
score2 = get_pix_fmt_score(dst_pix_fmt2, src_pix_fmt, &loss2, loss_mask);
|
|
|
|
|
|
|
|
if (score1 == score2) {
|
|
|
|
if(av_get_padded_bits_per_pixel(desc2) != av_get_padded_bits_per_pixel(desc1)) {
|
|
|
|
dst_pix_fmt = av_get_padded_bits_per_pixel(desc2) < av_get_padded_bits_per_pixel(desc1) ? dst_pix_fmt2 : dst_pix_fmt1;
|
|
|
|
} else {
|
|
|
|
dst_pix_fmt = desc2->nb_components < desc1->nb_components ? dst_pix_fmt2 : dst_pix_fmt1;
|
2011-08-26 17:03:50 +00:00
|
|
|
}
|
2013-02-10 00:19:25 +00:00
|
|
|
} else {
|
|
|
|
dst_pix_fmt = score1 < score2 ? dst_pix_fmt2 : dst_pix_fmt1;
|
2003-04-20 16:18:44 +00:00
|
|
|
}
|
2011-08-26 17:03:50 +00:00
|
|
|
|
2003-04-20 16:18:44 +00:00
|
|
|
if (loss_ptr)
|
|
|
|
*loss_ptr = avcodec_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha);
|
|
|
|
return dst_pix_fmt;
|
|
|
|
}
|
|
|
|
|
2013-07-01 16:47:09 +00:00
|
|
|
#if AV_HAVE_INCOMPATIBLE_LIBAV_ABI
|
2013-08-13 15:33:51 +00:00
|
|
|
enum AVPixelFormat avcodec_find_best_pix_fmt2(const enum AVPixelFormat *pix_fmt_list,
|
2012-10-08 18:54:00 +00:00
|
|
|
enum AVPixelFormat src_pix_fmt,
|
2012-08-31 18:35:27 +00:00
|
|
|
int has_alpha, int *loss_ptr){
|
|
|
|
return avcodec_find_best_pix_fmt_of_list(pix_fmt_list, src_pix_fmt, has_alpha, loss_ptr);
|
|
|
|
}
|
|
|
|
#else
|
2012-10-08 18:54:00 +00:00
|
|
|
enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
|
|
|
|
enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
|
2012-07-24 23:37:38 +00:00
|
|
|
{
|
|
|
|
return avcodec_find_best_pix_fmt_of_2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, has_alpha, loss_ptr);
|
|
|
|
}
|
2012-08-31 18:35:27 +00:00
|
|
|
#endif
|
2012-07-24 23:37:38 +00:00
|
|
|
|
2013-09-10 04:32:03 +00:00
|
|
|
enum AVPixelFormat avcodec_find_best_pix_fmt_of_list(const enum AVPixelFormat *pix_fmt_list,
|
2012-10-08 18:54:00 +00:00
|
|
|
enum AVPixelFormat src_pix_fmt,
|
2012-07-14 23:50:02 +00:00
|
|
|
int has_alpha, int *loss_ptr){
|
|
|
|
int i;
|
|
|
|
|
2012-10-08 18:54:00 +00:00
|
|
|
enum AVPixelFormat best = AV_PIX_FMT_NONE;
|
2012-07-14 23:50:02 +00:00
|
|
|
|
2012-10-08 18:54:00 +00:00
|
|
|
for(i=0; pix_fmt_list[i] != AV_PIX_FMT_NONE; i++)
|
2012-07-24 23:37:38 +00:00
|
|
|
best = avcodec_find_best_pix_fmt_of_2(best, pix_fmt_list[i], src_pix_fmt, has_alpha, loss_ptr);
|
2012-07-14 23:50:02 +00:00
|
|
|
|
|
|
|
return best;
|
|
|
|
}
|
|
|
|
|
2001-08-11 19:03:02 +00:00
|
|
|
/* 2x2 -> 1x1 */
|
2006-03-31 20:43:37 +00:00
|
|
|
void ff_shrink22(uint8_t *dst, int dst_wrap,
|
2003-04-21 14:38:52 +00:00
|
|
|
const uint8_t *src, int src_wrap,
|
2001-08-11 19:03:02 +00:00
|
|
|
int width, int height)
|
|
|
|
{
|
|
|
|
int w;
|
2003-04-21 14:38:52 +00:00
|
|
|
const uint8_t *s1, *s2;
|
|
|
|
uint8_t *d;
|
2001-08-11 19:03:02 +00:00
|
|
|
|
|
|
|
for(;height > 0; height--) {
|
|
|
|
s1 = src;
|
|
|
|
s2 = s1 + src_wrap;
|
|
|
|
d = dst;
|
|
|
|
for(w = width;w >= 4; w-=4) {
|
2003-04-21 15:01:37 +00:00
|
|
|
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;
|
2001-08-11 19:03:02 +00:00
|
|
|
s1 += 8;
|
|
|
|
s2 += 8;
|
|
|
|
d += 4;
|
|
|
|
}
|
|
|
|
for(;w > 0; w--) {
|
2003-04-21 15:01:37 +00:00
|
|
|
d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
|
2001-08-11 19:03:02 +00:00
|
|
|
s1 += 2;
|
|
|
|
s2 += 2;
|
|
|
|
d++;
|
|
|
|
}
|
|
|
|
src += 2 * src_wrap;
|
|
|
|
dst += dst_wrap;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-04-21 14:38:52 +00:00
|
|
|
/* 4x4 -> 1x1 */
|
2006-03-31 20:43:37 +00:00
|
|
|
void ff_shrink44(uint8_t *dst, int dst_wrap,
|
2003-04-21 14:38:52 +00:00
|
|
|
const uint8_t *src, int src_wrap,
|
2002-07-21 07:54:53 +00:00
|
|
|
int width, int height)
|
|
|
|
{
|
|
|
|
int w;
|
2003-04-21 14:38:52 +00:00
|
|
|
const uint8_t *s1, *s2, *s3, *s4;
|
|
|
|
uint8_t *d;
|
2002-07-21 07:54:53 +00:00
|
|
|
|
|
|
|
for(;height > 0; height--) {
|
|
|
|
s1 = src;
|
2003-04-21 14:38:52 +00:00
|
|
|
s2 = s1 + src_wrap;
|
|
|
|
s3 = s2 + src_wrap;
|
|
|
|
s4 = s3 + src_wrap;
|
2002-07-21 07:54:53 +00:00
|
|
|
d = dst;
|
2003-04-21 14:38:52 +00:00
|
|
|
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;
|
2002-07-21 07:54:53 +00:00
|
|
|
d++;
|
|
|
|
}
|
2003-04-21 14:38:52 +00:00
|
|
|
src += 4 * src_wrap;
|
|
|
|
dst += dst_wrap;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-03-31 20:43:37 +00:00
|
|
|
/* 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;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-04-21 12:12:58 +00:00
|
|
|
/* return true if yuv planar */
|
2012-11-17 19:34:41 +00:00
|
|
|
static inline int is_yuv_planar(const AVPixFmtDescriptor *desc)
|
2003-04-21 12:12:58 +00:00
|
|
|
{
|
2011-07-23 13:37:05 +00:00
|
|
|
int i;
|
|
|
|
int planes[4] = { 0 };
|
|
|
|
|
2013-05-15 08:50:20 +00:00
|
|
|
if ( desc->flags & AV_PIX_FMT_FLAG_RGB
|
|
|
|
|| !(desc->flags & AV_PIX_FMT_FLAG_PLANAR))
|
2011-07-23 13:37:05 +00:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
/* set the used planes */
|
|
|
|
for (i = 0; i < desc->nb_components; i++)
|
|
|
|
planes[desc->comp[i].plane] = 1;
|
|
|
|
|
|
|
|
/* if there is an unused plane, the format is not planar */
|
|
|
|
for (i = 0; i < desc->nb_components; i++)
|
|
|
|
if (!planes[i])
|
|
|
|
return 0;
|
|
|
|
return 1;
|
2003-04-21 12:12:58 +00:00
|
|
|
}
|
|
|
|
|
2007-03-04 11:53:11 +00:00
|
|
|
int av_picture_crop(AVPicture *dst, const AVPicture *src,
|
2012-10-06 10:10:34 +00:00
|
|
|
enum AVPixelFormat pix_fmt, int top_band, int left_band)
|
2006-03-10 13:55:48 +00:00
|
|
|
{
|
2012-10-06 11:29:37 +00:00
|
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
|
2006-03-10 13:55:48 +00:00
|
|
|
int y_shift;
|
|
|
|
int x_shift;
|
|
|
|
|
2012-10-08 18:54:00 +00:00
|
|
|
if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB)
|
2006-03-10 13:55:48 +00:00
|
|
|
return -1;
|
|
|
|
|
2012-10-06 11:29:37 +00:00
|
|
|
y_shift = desc->log2_chroma_h;
|
|
|
|
x_shift = desc->log2_chroma_w;
|
2006-03-10 13:55:48 +00:00
|
|
|
|
2012-11-21 17:00:56 +00:00
|
|
|
if (is_yuv_planar(desc)) {
|
2006-03-10 13:55:48 +00:00
|
|
|
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);
|
2011-05-15 20:37:02 +00:00
|
|
|
} else{
|
|
|
|
if(top_band % (1<<y_shift) || left_band % (1<<x_shift))
|
|
|
|
return -1;
|
|
|
|
if(left_band) //FIXME add support for this too
|
|
|
|
return -1;
|
|
|
|
dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + left_band;
|
|
|
|
}
|
2006-03-10 13:55:48 +00:00
|
|
|
|
|
|
|
dst->linesize[0] = src->linesize[0];
|
|
|
|
dst->linesize[1] = src->linesize[1];
|
|
|
|
dst->linesize[2] = src->linesize[2];
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-03-04 11:53:11 +00:00
|
|
|
int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width,
|
2012-10-06 10:10:34 +00:00
|
|
|
enum AVPixelFormat pix_fmt, int padtop, int padbottom, int padleft, int padright,
|
2007-01-17 10:47:58 +00:00
|
|
|
int *color)
|
2006-04-10 07:45:29 +00:00
|
|
|
{
|
2012-10-06 11:29:37 +00:00
|
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
|
2007-01-17 11:02:07 +00:00
|
|
|
uint8_t *optr;
|
2006-04-10 07:45:29 +00:00
|
|
|
int y_shift;
|
|
|
|
int x_shift;
|
|
|
|
int yheight;
|
|
|
|
int i, y;
|
|
|
|
|
2012-10-06 10:10:34 +00:00
|
|
|
if (pix_fmt < 0 || pix_fmt >= AV_PIX_FMT_NB ||
|
2012-11-17 19:34:41 +00:00
|
|
|
!is_yuv_planar(desc)) return -1;
|
2006-04-10 07:45:29 +00:00
|
|
|
|
|
|
|
for (i = 0; i < 3; i++) {
|
2012-10-06 11:29:37 +00:00
|
|
|
x_shift = i ? desc->log2_chroma_w : 0;
|
|
|
|
y_shift = i ? desc->log2_chroma_h : 0;
|
2006-04-10 07:45:29 +00:00
|
|
|
|
|
|
|
if (padtop || padleft) {
|
2007-01-17 10:47:58 +00:00
|
|
|
memset(dst->data[i], color[i],
|
|
|
|
dst->linesize[i] * (padtop >> y_shift) + (padleft >> x_shift));
|
2006-04-10 07:45:29 +00:00
|
|
|
}
|
|
|
|
|
2007-01-17 11:02:07 +00:00
|
|
|
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];
|
2006-04-10 07:45:29 +00:00
|
|
|
}
|
2007-01-17 11:02:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (src) { /* first line */
|
|
|
|
uint8_t *iptr = src->data[i];
|
|
|
|
optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
|
|
|
|
(padleft >> x_shift);
|
2008-06-01 02:28:33 +00:00
|
|
|
memcpy(optr, iptr, (width - padleft - padright) >> x_shift);
|
2007-01-17 11:02:07 +00:00
|
|
|
iptr += src->linesize[i];
|
2007-01-17 10:47:58 +00:00
|
|
|
optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
|
|
|
|
(dst->linesize[i] - (padright >> x_shift));
|
2006-04-10 07:45:29 +00:00
|
|
|
yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
|
|
|
|
for (y = 0; y < yheight; y++) {
|
|
|
|
memset(optr, color[i], (padleft + padright) >> x_shift);
|
2007-01-17 11:02:07 +00:00
|
|
|
memcpy(optr + ((padleft + padright) >> x_shift), iptr,
|
2008-06-01 02:28:33 +00:00
|
|
|
(width - padleft - padright) >> x_shift);
|
2007-01-17 11:02:07 +00:00
|
|
|
iptr += src->linesize[i];
|
2006-04-10 07:45:29 +00:00
|
|
|
optr += dst->linesize[i];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (padbottom || padright) {
|
2007-01-17 10:47:58 +00:00
|
|
|
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));
|
2006-04-10 07:45:29 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-03-03 16:23:08 +00:00
|
|
|
#if FF_API_DEINTERLACE
|
|
|
|
|
2012-08-28 12:53:33 +00:00
|
|
|
#if !HAVE_MMX_EXTERNAL
|
2001-08-11 19:03:02 +00:00
|
|
|
/* filter parameters: [-1 4 2 4 -1] // 8 */
|
2010-07-31 14:50:51 +00:00
|
|
|
static void deinterlace_line_c(uint8_t *dst,
|
2005-12-22 01:10:11 +00:00
|
|
|
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)
|
2001-08-11 19:03:02 +00:00
|
|
|
{
|
2013-12-22 13:32:11 +00:00
|
|
|
const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
|
2001-08-11 19:03:02 +00:00
|
|
|
int sum;
|
|
|
|
|
|
|
|
for(;size > 0;size--) {
|
2002-10-30 09:09:34 +00:00
|
|
|
sum = -lum_m4[0];
|
|
|
|
sum += lum_m3[0] << 2;
|
|
|
|
sum += lum_m2[0] << 1;
|
|
|
|
sum += lum_m1[0] << 2;
|
|
|
|
sum += -lum[0];
|
2001-08-11 19:03:02 +00:00
|
|
|
dst[0] = cm[(sum + 4) >> 3];
|
2002-10-30 09:09:34 +00:00
|
|
|
lum_m4++;
|
|
|
|
lum_m3++;
|
|
|
|
lum_m2++;
|
|
|
|
lum_m1++;
|
|
|
|
lum++;
|
2001-08-11 19:03:02 +00:00
|
|
|
dst++;
|
|
|
|
}
|
2002-10-30 09:09:34 +00:00
|
|
|
}
|
2010-07-31 14:50:51 +00:00
|
|
|
|
|
|
|
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)
|
2002-10-30 09:09:34 +00:00
|
|
|
{
|
2013-12-22 13:32:11 +00:00
|
|
|
const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
|
2002-10-30 09:09:34 +00:00
|
|
|
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++;
|
|
|
|
}
|
2001-08-11 19:03:02 +00:00
|
|
|
}
|
2012-08-28 12:53:33 +00:00
|
|
|
#endif /* !HAVE_MMX_EXTERNAL */
|
2001-08-11 19:03:02 +00:00
|
|
|
|
|
|
|
/* 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. */
|
2003-02-11 16:35:48 +00:00
|
|
|
static void deinterlace_bottom_field(uint8_t *dst, int dst_wrap,
|
2003-09-29 15:44:59 +00:00
|
|
|
const uint8_t *src1, int src_wrap,
|
2002-10-30 09:09:34 +00:00
|
|
|
int width, int height)
|
2001-08-11 19:03:02 +00:00
|
|
|
{
|
2003-09-29 15:44:59 +00:00
|
|
|
const uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
|
2002-10-30 09:09:34 +00:00
|
|
|
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);
|
2001-08-11 19:03:02 +00:00
|
|
|
dst += dst_wrap;
|
2002-10-30 09:09:34 +00:00
|
|
|
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;
|
2001-08-11 19:03:02 +00:00
|
|
|
dst += dst_wrap;
|
|
|
|
}
|
2002-10-30 09:09:34 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2003-02-11 16:35:48 +00:00
|
|
|
static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap,
|
2005-12-22 01:10:11 +00:00
|
|
|
int width, int height)
|
2002-10-30 09:09:34 +00:00
|
|
|
{
|
2003-02-11 16:35:48 +00:00
|
|
|
uint8_t *src_m1, *src_0, *src_p1, *src_p2;
|
2002-10-30 09:09:34 +00:00
|
|
|
int y;
|
2003-02-11 16:35:48 +00:00
|
|
|
uint8_t *buf;
|
2011-12-31 15:30:59 +00:00
|
|
|
buf = av_malloc(width);
|
2002-10-30 09:09:34 +00:00
|
|
|
|
|
|
|
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);
|
2002-05-18 23:03:29 +00:00
|
|
|
av_free(buf);
|
2001-08-11 19:03:02 +00:00
|
|
|
}
|
|
|
|
|
2003-09-29 15:44:59 +00:00
|
|
|
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
|
2012-10-06 10:10:34 +00:00
|
|
|
enum AVPixelFormat pix_fmt, int width, int height)
|
2001-07-22 14:18:56 +00:00
|
|
|
{
|
2001-08-11 19:03:02 +00:00
|
|
|
int i;
|
|
|
|
|
2012-10-06 10:10:34 +00:00
|
|
|
if (pix_fmt != AV_PIX_FMT_YUV420P &&
|
|
|
|
pix_fmt != AV_PIX_FMT_YUVJ420P &&
|
|
|
|
pix_fmt != AV_PIX_FMT_YUV422P &&
|
|
|
|
pix_fmt != AV_PIX_FMT_YUVJ422P &&
|
|
|
|
pix_fmt != AV_PIX_FMT_YUV444P &&
|
|
|
|
pix_fmt != AV_PIX_FMT_YUV411P &&
|
|
|
|
pix_fmt != AV_PIX_FMT_GRAY8)
|
2001-08-11 19:03:02 +00:00
|
|
|
return -1;
|
2002-10-30 09:09:34 +00:00
|
|
|
if ((width & 3) != 0 || (height & 3) != 0)
|
2001-08-11 19:03:02 +00:00
|
|
|
return -1;
|
2002-10-30 09:09:34 +00:00
|
|
|
|
2001-08-11 19:03:02 +00:00
|
|
|
for(i=0;i<3;i++) {
|
|
|
|
if (i == 1) {
|
|
|
|
switch(pix_fmt) {
|
2012-10-06 10:10:34 +00:00
|
|
|
case AV_PIX_FMT_YUVJ420P:
|
|
|
|
case AV_PIX_FMT_YUV420P:
|
2001-08-11 19:03:02 +00:00
|
|
|
width >>= 1;
|
|
|
|
height >>= 1;
|
|
|
|
break;
|
2012-10-06 10:10:34 +00:00
|
|
|
case AV_PIX_FMT_YUV422P:
|
|
|
|
case AV_PIX_FMT_YUVJ422P:
|
2001-08-11 19:03:02 +00:00
|
|
|
width >>= 1;
|
|
|
|
break;
|
2012-10-06 10:10:34 +00:00
|
|
|
case AV_PIX_FMT_YUV411P:
|
2003-08-26 22:05:12 +00:00
|
|
|
width >>= 2;
|
|
|
|
break;
|
2001-08-11 19:03:02 +00:00
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2012-10-06 10:10:34 +00:00
|
|
|
if (pix_fmt == AV_PIX_FMT_GRAY8) {
|
2007-10-11 22:31:08 +00:00
|
|
|
break;
|
|
|
|
}
|
2001-08-11 19:03:02 +00:00
|
|
|
}
|
2002-10-30 09:09:34 +00:00
|
|
|
if (src == dst) {
|
2003-09-29 15:44:59 +00:00
|
|
|
deinterlace_bottom_field_inplace(dst->data[i], dst->linesize[i],
|
2001-08-11 19:03:02 +00:00
|
|
|
width, height);
|
2002-10-30 09:09:34 +00:00
|
|
|
} else {
|
|
|
|
deinterlace_bottom_field(dst->data[i],dst->linesize[i],
|
|
|
|
src->data[i], src->linesize[i],
|
|
|
|
width, height);
|
|
|
|
}
|
2001-07-22 14:18:56 +00:00
|
|
|
}
|
2007-09-29 15:09:34 +00:00
|
|
|
emms_c();
|
2001-08-11 19:03:02 +00:00
|
|
|
return 0;
|
2001-07-22 14:18:56 +00:00
|
|
|
}
|
2012-11-21 15:10:42 +00:00
|
|
|
|
2013-03-03 16:23:08 +00:00
|
|
|
#endif /* FF_API_DEINTERLACE */
|
|
|
|
|
2012-11-21 15:10:42 +00:00
|
|
|
#ifdef TEST
|
|
|
|
|
|
|
|
int main(void){
|
|
|
|
int i;
|
2012-11-21 18:59:34 +00:00
|
|
|
int err=0;
|
2012-11-21 19:13:45 +00:00
|
|
|
int skip = 0;
|
2012-11-21 18:59:34 +00:00
|
|
|
|
2012-11-21 15:10:42 +00:00
|
|
|
for (i=0; i<AV_PIX_FMT_NB*2; i++) {
|
2013-05-13 14:41:21 +00:00
|
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(i);
|
2012-11-21 19:13:45 +00:00
|
|
|
if(!desc || !desc->name) {
|
|
|
|
skip ++;
|
2012-11-21 15:10:42 +00:00
|
|
|
continue;
|
2012-11-21 19:13:45 +00:00
|
|
|
}
|
|
|
|
if (skip) {
|
2012-11-23 17:10:02 +00:00
|
|
|
av_log(NULL, AV_LOG_INFO, "%3d unused pixel format values\n", skip);
|
2012-11-21 19:13:45 +00:00
|
|
|
skip = 0;
|
|
|
|
}
|
2012-11-23 17:10:02 +00:00
|
|
|
av_log(NULL, AV_LOG_INFO, "pix fmt %s yuv_plan:%d avg_bpp:%d colortype:%d\n", desc->name, is_yuv_planar(desc), av_get_padded_bits_per_pixel(desc), get_color_type(desc));
|
2013-05-15 09:23:14 +00:00
|
|
|
if ((!(desc->flags & AV_PIX_FMT_FLAG_ALPHA)) != (desc->nb_components != 2 && desc->nb_components != 4)) {
|
2012-11-23 17:10:02 +00:00
|
|
|
av_log(NULL, AV_LOG_ERROR, "Alpha flag mismatch\n");
|
2012-11-21 18:59:34 +00:00
|
|
|
err = 1;
|
|
|
|
}
|
2012-11-21 15:10:42 +00:00
|
|
|
}
|
2012-11-21 18:59:34 +00:00
|
|
|
return err;
|
2012-11-21 15:10:42 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|