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1676 lines
57 KiB
C
1676 lines
57 KiB
C
/*
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* Misc image convertion routines
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* Copyright (c) 2001, 2002, 2003 Fabrice Bellard.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* @file imgconvert.c
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* Misc image convertion routines.
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*/
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#include "avcodec.h"
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#include "dsputil.h"
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#ifdef USE_FASTMEMCPY
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#include "fastmemcpy.h"
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#endif
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#ifdef HAVE_MMX
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#include "i386/mmx.h"
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#endif
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typedef struct PixFmtInfo {
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const char *name;
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uint8_t nb_components; /* number of components in AVPicture array */
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uint8_t is_yuv : 1; /* true if YUV instead of RGB color space */
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uint8_t is_packed : 1; /* true if multiple components in same word */
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uint8_t is_paletted : 1; /* true if paletted */
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uint8_t is_alpha : 1; /* true if alpha can be specified */
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uint8_t is_gray : 1; /* true if gray or monochrome format */
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uint8_t x_chroma_shift; /* X chroma subsampling factor is 2 ^ shift */
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uint8_t y_chroma_shift; /* Y chroma subsampling factor is 2 ^ shift */
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} PixFmtInfo;
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/* this table gives more information about formats */
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static PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
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/* YUV formats */
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[PIX_FMT_YUV420P] = {
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.name = "yuv420p",
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.nb_components = 3, .is_yuv = 1,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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[PIX_FMT_YUV422P] = {
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.name = "yuv422p",
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.nb_components = 3, .is_yuv = 1,
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.x_chroma_shift = 1, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUV444P] = {
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.name = "yuv444p",
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.nb_components = 3, .is_yuv = 1,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUV422] = {
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.name = "yuv422",
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.nb_components = 1, .is_yuv = 1, .is_packed = 1,
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.x_chroma_shift = 1, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUV410P] = {
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.name = "yuv410p",
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.nb_components = 3, .is_yuv = 1,
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.x_chroma_shift = 2, .y_chroma_shift = 2,
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},
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[PIX_FMT_YUV411P] = {
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.name = "yuv411p",
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.nb_components = 3, .is_yuv = 1,
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.x_chroma_shift = 2, .y_chroma_shift = 0,
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},
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/* RGB formats */
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[PIX_FMT_RGB24] = {
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.name = "rgb24",
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.nb_components = 1, .is_packed = 1,
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},
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[PIX_FMT_BGR24] = {
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.name = "bgr24",
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.nb_components = 1, .is_packed = 1,
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},
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[PIX_FMT_RGBA32] = {
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.name = "rgba32",
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.nb_components = 1, .is_packed = 1, .is_alpha = 1,
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},
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[PIX_FMT_RGB565] = {
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.name = "rgb565",
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.nb_components = 1, .is_packed = 1,
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},
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[PIX_FMT_RGB555] = {
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.name = "rgb555",
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.nb_components = 1, .is_packed = 1, .is_alpha = 1,
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},
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/* gray / mono formats */
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[PIX_FMT_GRAY8] = {
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.name = "gray",
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.nb_components = 1, .is_gray = 1,
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},
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[PIX_FMT_MONOWHITE] = {
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.name = "monow",
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.nb_components = 1, .is_packed = 1, .is_gray = 1,
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},
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[PIX_FMT_MONOBLACK] = {
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.name = "monob",
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.nb_components = 1, .is_packed = 1, .is_gray = 1,
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},
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/* paletted formats */
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[PIX_FMT_PAL8] = {
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.name = "pal8",
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.nb_components = 1, .is_packed = 1, .is_alpha = 1, .is_paletted = 1,
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},
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};
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void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift)
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{
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if (pix_fmt_info[pix_fmt].is_yuv) {
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*h_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
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*v_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
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} else {
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*h_shift=0;
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*v_shift=0;
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}
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}
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const char *avcodec_get_pix_fmt_name(int pix_fmt)
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{
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if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB)
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return "???";
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else
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return pix_fmt_info[pix_fmt].name;
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}
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/* Picture field are filled with 'ptr' addresses. Also return size */
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int avpicture_fill(AVPicture *picture, uint8_t *ptr,
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int pix_fmt, int width, int height)
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{
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int size, w2, h2, size2;
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PixFmtInfo *pinfo;
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pinfo = &pix_fmt_info[pix_fmt];
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size = width * height;
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switch(pix_fmt) {
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case PIX_FMT_YUV420P:
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case PIX_FMT_YUV422P:
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case PIX_FMT_YUV444P:
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case PIX_FMT_YUV410P:
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case PIX_FMT_YUV411P:
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w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
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h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
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size2 = w2 * h2;
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picture->data[0] = ptr;
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picture->data[1] = picture->data[0] + size;
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picture->data[2] = picture->data[1] + size2;
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picture->linesize[0] = width;
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picture->linesize[1] = w2;
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picture->linesize[2] = w2;
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return size + 2 * size2;
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case PIX_FMT_RGB24:
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case PIX_FMT_BGR24:
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->linesize[0] = width * 3;
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return size * 3;
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case PIX_FMT_RGBA32:
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->linesize[0] = width * 4;
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return size * 4;
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case PIX_FMT_RGB555:
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case PIX_FMT_RGB565:
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case PIX_FMT_YUV422:
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->linesize[0] = width * 2;
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return size * 2;
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case PIX_FMT_GRAY8:
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->linesize[0] = width;
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return size;
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case PIX_FMT_MONOWHITE:
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case PIX_FMT_MONOBLACK:
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->linesize[0] = (width + 7) >> 3;
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return picture->linesize[0] * height;
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case PIX_FMT_PAL8:
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size2 = (size + 3) & ~3;
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picture->data[0] = ptr;
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picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */
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picture->data[2] = NULL;
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picture->linesize[0] = width;
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picture->linesize[1] = 4;
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return size2 + 256 * 4;
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default:
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picture->data[0] = NULL;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->data[3] = NULL;
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return -1;
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}
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}
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int avpicture_get_size(int pix_fmt, int width, int height)
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{
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AVPicture dummy_pict;
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return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
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}
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/* XXX: totally non optimized */
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static void yuv422_to_yuv420p(AVPicture *dst, AVPicture *src,
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int width, int height)
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{
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uint8_t *lum, *cb, *cr;
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int x, y;
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const uint8_t *p;
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lum = dst->data[0];
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cb = dst->data[1];
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cr = dst->data[2];
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p = src->data[0];
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for(y=0;y<height;y+=2) {
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for(x=0;x<width;x+=2) {
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lum[0] = p[0];
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cb[0] = p[1];
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lum[1] = p[2];
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cr[0] = p[3];
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p += 4;
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lum += 2;
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cb++;
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cr++;
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}
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for(x=0;x<width;x+=2) {
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lum[0] = p[0];
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lum[1] = p[2];
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p += 4;
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lum += 2;
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}
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}
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}
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#define SCALEBITS 8
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#define ONE_HALF (1 << (SCALEBITS - 1))
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#define FIX(x) ((int) ((x) * (1L<<SCALEBITS) + 0.5))
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/* XXX: use generic filter ? */
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/* 1x2 -> 1x1 */
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static void shrink2(uint8_t *dst, int dst_wrap,
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uint8_t *src, int src_wrap,
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int width, int height)
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{
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int w;
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uint8_t *s1, *s2, *d;
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for(;height > 0; height--) {
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s1 = src;
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s2 = s1 + src_wrap;
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d = dst;
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for(w = width;w >= 4; w-=4) {
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d[0] = (s1[0] + s2[0]) >> 1;
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d[1] = (s1[1] + s2[1]) >> 1;
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d[2] = (s1[2] + s2[2]) >> 1;
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d[3] = (s1[3] + s2[3]) >> 1;
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s1 += 4;
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s2 += 4;
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d += 4;
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}
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for(;w > 0; w--) {
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d[0] = (s1[0] + s2[0]) >> 1;
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s1++;
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s2++;
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d++;
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}
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src += 2 * src_wrap;
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dst += dst_wrap;
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}
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}
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/* 2x2 -> 1x1 */
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static void shrink22(uint8_t *dst, int dst_wrap,
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uint8_t *src, int src_wrap,
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int width, int height)
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{
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int w;
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uint8_t *s1, *s2, *d;
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for(;height > 0; height--) {
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s1 = src;
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s2 = s1 + src_wrap;
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d = dst;
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for(w = width;w >= 4; w-=4) {
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d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 1;
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d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 1;
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d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 1;
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d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 1;
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s1 += 8;
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s2 += 8;
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d += 4;
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}
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for(;w > 0; w--) {
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d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 1;
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s1 += 2;
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s2 += 2;
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d++;
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}
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src += 2 * src_wrap;
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dst += dst_wrap;
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}
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}
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/* 1x1 -> 2x2 */
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static void grow22(uint8_t *dst, int dst_wrap,
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uint8_t *src, int src_wrap,
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int width, int height)
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{
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int w;
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uint8_t *s1, *d;
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for(;height > 0; height--) {
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s1 = src;
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d = dst;
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for(w = width;w >= 4; w-=4) {
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d[1] = d[0] = s1[0];
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d[3] = d[2] = s1[1];
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s1 += 2;
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d += 4;
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}
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for(;w > 0; w--) {
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d[0] = s1[0];
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s1 ++;
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d++;
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}
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if (height%2)
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src += src_wrap;
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dst += dst_wrap;
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}
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}
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/* 1x2 -> 2x1 */
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static void conv411(uint8_t *dst, int dst_wrap,
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uint8_t *src, int src_wrap,
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int width, int height)
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{
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int w, c;
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uint8_t *s1, *s2, *d;
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width>>=1;
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for(;height > 0; height--) {
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s1 = src;
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s2 = src + src_wrap;
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d = dst;
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for(w = width;w > 0; w--) {
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c = (s1[0] + s2[0]) >> 1;
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d[0] = c;
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d[1] = c;
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s1++;
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s2++;
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d += 2;
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}
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src += src_wrap * 2;
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dst += dst_wrap;
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}
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}
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static void img_copy(uint8_t *dst, int dst_wrap,
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uint8_t *src, int src_wrap,
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int width, int height)
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{
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for(;height > 0; height--) {
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memcpy(dst, src, width);
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dst += dst_wrap;
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src += src_wrap;
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}
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}
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#define SCALE_BITS 10
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#define C_Y (76309 >> (16 - SCALE_BITS))
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#define C_RV (117504 >> (16 - SCALE_BITS))
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#define C_BU (138453 >> (16 - SCALE_BITS))
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#define C_GU (13954 >> (16 - SCALE_BITS))
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#define C_GV (34903 >> (16 - SCALE_BITS))
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#define YUV_TO_RGB2(r, g, b, y1)\
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{\
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y = (y1 - 16) * C_Y;\
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r = cm[(y + r_add) >> SCALE_BITS];\
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g = cm[(y + g_add) >> SCALE_BITS];\
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b = cm[(y + b_add) >> SCALE_BITS];\
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}
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/* XXX: no chroma interpolating is done */
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#define RGB_FUNCTIONS(rgb_name) \
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\
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static void yuv420p_to_ ## rgb_name (AVPicture *dst, AVPicture *src, \
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int width, int height) \
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{ \
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uint8_t *y1_ptr, *y2_ptr, *cb_ptr, *cr_ptr, *d, *d1, *d2; \
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int w, y, cb, cr, r_add, g_add, b_add, width2; \
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uint8_t *cm = cropTbl + MAX_NEG_CROP; \
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unsigned int r, g, b; \
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\
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d = dst->data[0]; \
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y1_ptr = src->data[0]; \
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cb_ptr = src->data[1]; \
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cr_ptr = src->data[2]; \
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width2 = (width + 1) >> 1; \
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for(;height >= 2; height -= 2) { \
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d1 = d; \
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d2 = d + dst->linesize[0]; \
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y2_ptr = y1_ptr + src->linesize[0]; \
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for(w = width; w >= 2; w -= 2) { \
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cb = cb_ptr[0] - 128; \
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cr = cr_ptr[0] - 128; \
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r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
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g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
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b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
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\
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/* output 4 pixels */ \
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YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
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RGB_OUT(d1, r, g, b); \
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\
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YUV_TO_RGB2(r, g, b, y1_ptr[1]); \
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RGB_OUT(d1 + BPP, r, g, b); \
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\
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YUV_TO_RGB2(r, g, b, y2_ptr[0]); \
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RGB_OUT(d2, r, g, b); \
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\
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YUV_TO_RGB2(r, g, b, y2_ptr[1]); \
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RGB_OUT(d2 + BPP, r, g, b); \
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\
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d1 += 2 * BPP; \
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d2 += 2 * BPP; \
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\
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y1_ptr += 2; \
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y2_ptr += 2; \
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cb_ptr++; \
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cr_ptr++; \
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} \
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/* handle odd width */ \
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if (w) { \
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cb = cb_ptr[0] - 128; \
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cr = cr_ptr[0] - 128; \
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r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
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g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
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b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
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\
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YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
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RGB_OUT(d1, r, g, b); \
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\
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YUV_TO_RGB2(r, g, b, y2_ptr[0]); \
|
|
RGB_OUT(d2, r, g, b); \
|
|
d1 += BPP; \
|
|
d2 += BPP; \
|
|
y1_ptr++; \
|
|
y2_ptr++; \
|
|
cb_ptr++; \
|
|
cr_ptr++; \
|
|
} \
|
|
d += 2 * dst->linesize[0]; \
|
|
y1_ptr += 2 * src->linesize[0] - width; \
|
|
cb_ptr += src->linesize[1] - width2; \
|
|
cr_ptr += src->linesize[2] - width2; \
|
|
} \
|
|
/* handle odd height */ \
|
|
if (height) { \
|
|
d1 = d; \
|
|
for(w = width; w >= 2; w -= 2) { \
|
|
cb = cb_ptr[0] - 128; \
|
|
cr = cr_ptr[0] - 128; \
|
|
r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
|
|
g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
|
|
b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
|
|
\
|
|
/* output 2 pixels */ \
|
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
|
|
RGB_OUT(d1, r, g, b); \
|
|
\
|
|
YUV_TO_RGB2(r, g, b, y1_ptr[1]); \
|
|
RGB_OUT(d1 + BPP, r, g, b); \
|
|
\
|
|
d1 += 2 * BPP; \
|
|
\
|
|
y1_ptr += 2; \
|
|
cb_ptr++; \
|
|
cr_ptr++; \
|
|
} \
|
|
/* handle width */ \
|
|
if (w) { \
|
|
cb = cb_ptr[0] - 128; \
|
|
cr = cr_ptr[0] - 128; \
|
|
r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
|
|
g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
|
|
b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
|
|
\
|
|
/* output 2 pixels */ \
|
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
|
|
RGB_OUT(d1, r, g, b); \
|
|
d1 += BPP; \
|
|
\
|
|
y1_ptr++; \
|
|
cb_ptr++; \
|
|
cr_ptr++; \
|
|
} \
|
|
} \
|
|
} \
|
|
\
|
|
/* XXX: no chroma interpolating is done */ \
|
|
static void yuv422p_to_ ## rgb_name (AVPicture *dst, AVPicture *src, \
|
|
int width, int height) \
|
|
{ \
|
|
uint8_t *y1_ptr, *cb_ptr, *cr_ptr, *d, *d1; \
|
|
int w, y, cb, cr, r_add, g_add, b_add, width2; \
|
|
uint8_t *cm = cropTbl + MAX_NEG_CROP; \
|
|
unsigned int r, g, b; \
|
|
\
|
|
d = dst->data[0]; \
|
|
y1_ptr = src->data[0]; \
|
|
cb_ptr = src->data[1]; \
|
|
cr_ptr = src->data[2]; \
|
|
width2 = (width + 1) >> 1; \
|
|
for(;height > 0; height --) { \
|
|
d1 = d; \
|
|
for(w = width; w >= 2; w -= 2) { \
|
|
cb = cb_ptr[0] - 128; \
|
|
cr = cr_ptr[0] - 128; \
|
|
r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
|
|
g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
|
|
b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
|
|
\
|
|
/* output 2 pixels */ \
|
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
|
|
RGB_OUT(d1, r, g, b); \
|
|
\
|
|
YUV_TO_RGB2(r, g, b, y1_ptr[1]); \
|
|
RGB_OUT(d1 + BPP, r, g, b); \
|
|
\
|
|
d1 += 2 * BPP; \
|
|
\
|
|
y1_ptr += 2; \
|
|
cb_ptr++; \
|
|
cr_ptr++; \
|
|
} \
|
|
/* handle width */ \
|
|
if (w) { \
|
|
cb = cb_ptr[0] - 128; \
|
|
cr = cr_ptr[0] - 128; \
|
|
r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
|
|
g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
|
|
b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
|
|
\
|
|
/* output 2 pixels */ \
|
|
YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
|
|
RGB_OUT(d1, r, g, b); \
|
|
d1 += BPP; \
|
|
\
|
|
y1_ptr++; \
|
|
cb_ptr++; \
|
|
cr_ptr++; \
|
|
} \
|
|
d += dst->linesize[0]; \
|
|
y1_ptr += src->linesize[0] - width; \
|
|
cb_ptr += src->linesize[1] - width2; \
|
|
cr_ptr += src->linesize[2] - width2; \
|
|
} \
|
|
} \
|
|
\
|
|
static void rgb_name ## _to_yuv420p(AVPicture *dst, AVPicture *src, \
|
|
int width, int height) \
|
|
{ \
|
|
int wrap, wrap3, x, y; \
|
|
int r, g, b, r1, g1, b1; \
|
|
uint8_t *lum, *cb, *cr; \
|
|
const uint8_t *p; \
|
|
\
|
|
lum = dst->data[0]; \
|
|
cb = dst->data[1]; \
|
|
cr = dst->data[2]; \
|
|
\
|
|
wrap = dst->linesize[0]; \
|
|
wrap3 = src->linesize[0]; \
|
|
p = src->data[0]; \
|
|
for(y=0;y<height;y+=2) { \
|
|
for(x=0;x<width;x+=2) { \
|
|
RGB_IN(r, g, b, p); \
|
|
r1 = r; \
|
|
g1 = g; \
|
|
b1 = b; \
|
|
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + \
|
|
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
|
|
RGB_IN(r, g, b, p + BPP); \
|
|
r1 += r; \
|
|
g1 += g; \
|
|
b1 += b; \
|
|
lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g + \
|
|
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
|
|
p += wrap3; \
|
|
lum += wrap; \
|
|
\
|
|
RGB_IN(r, g, b, p); \
|
|
r1 += r; \
|
|
g1 += g; \
|
|
b1 += b; \
|
|
lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + \
|
|
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
|
|
\
|
|
RGB_IN(r, g, b, p + BPP); \
|
|
r1 += r; \
|
|
g1 += g; \
|
|
b1 += b; \
|
|
lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g + \
|
|
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
|
|
\
|
|
cb[0] = ((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
|
|
FIX(0.50000) * b1 + 4 * ONE_HALF - 1) >> \
|
|
(SCALEBITS + 2)) + 128; \
|
|
cr[0] = ((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
|
|
FIX(0.08131) * b1 + 4 * ONE_HALF - 1) >> \
|
|
(SCALEBITS + 2)) + 128; \
|
|
\
|
|
cb++; \
|
|
cr++; \
|
|
p += -wrap3 + 2 * BPP; \
|
|
lum += -wrap + 2; \
|
|
} \
|
|
p += wrap3 + (wrap3 - width * BPP); \
|
|
lum += wrap + (wrap - width); \
|
|
cb += dst->linesize[1] - width / 2; \
|
|
cr += dst->linesize[2] - width / 2; \
|
|
} \
|
|
} \
|
|
\
|
|
static void rgb_name ## _to_gray(AVPicture *dst, AVPicture *src, \
|
|
int width, int height) \
|
|
{ \
|
|
const unsigned char *p; \
|
|
unsigned char *q; \
|
|
int r, g, b, dst_wrap, src_wrap; \
|
|
int x, y; \
|
|
\
|
|
p = src->data[0]; \
|
|
src_wrap = src->linesize[0] - BPP * width; \
|
|
\
|
|
q = dst->data[0]; \
|
|
dst_wrap = dst->linesize[0] - width; \
|
|
\
|
|
for(y=0;y<height;y++) { \
|
|
for(x=0;x<width;x++) { \
|
|
RGB_IN(r, g, b, p); \
|
|
q[0] = (FIX(0.29900) * r + FIX(0.58700) * g + \
|
|
FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
|
|
q++; \
|
|
p += BPP; \
|
|
} \
|
|
p += src_wrap; \
|
|
q += dst_wrap; \
|
|
} \
|
|
} \
|
|
\
|
|
static void gray_to_ ## rgb_name(AVPicture *dst, AVPicture *src, \
|
|
int width, int height) \
|
|
{ \
|
|
const unsigned char *p; \
|
|
unsigned char *q; \
|
|
int r, dst_wrap, src_wrap; \
|
|
int x, y; \
|
|
\
|
|
p = src->data[0]; \
|
|
src_wrap = src->linesize[0] - width; \
|
|
\
|
|
q = dst->data[0]; \
|
|
dst_wrap = dst->linesize[0] - BPP * width; \
|
|
\
|
|
for(y=0;y<height;y++) { \
|
|
for(x=0;x<width;x++) { \
|
|
r = p[0]; \
|
|
RGB_OUT(q, r, r, r); \
|
|
q += BPP; \
|
|
p ++; \
|
|
} \
|
|
p += src_wrap; \
|
|
q += dst_wrap; \
|
|
} \
|
|
} \
|
|
\
|
|
static void pal8_to_ ## rgb_name(AVPicture *dst, AVPicture *src, \
|
|
int width, int height) \
|
|
{ \
|
|
const unsigned char *p; \
|
|
unsigned char *q; \
|
|
int r, g, b, dst_wrap, src_wrap; \
|
|
int x, y; \
|
|
uint32_t v;\
|
|
const uint32_t *palette;\
|
|
\
|
|
p = src->data[0]; \
|
|
src_wrap = src->linesize[0] - width; \
|
|
palette = (uint32_t *)src->data[1];\
|
|
\
|
|
q = dst->data[0]; \
|
|
dst_wrap = dst->linesize[0] - BPP * width; \
|
|
\
|
|
for(y=0;y<height;y++) { \
|
|
for(x=0;x<width;x++) { \
|
|
v = palette[p[0]];\
|
|
r = (v >> 16) & 0xff;\
|
|
g = (v >> 8) & 0xff;\
|
|
b = (v) & 0xff;\
|
|
RGB_OUT(q, r, g, b); \
|
|
q += BPP; \
|
|
p ++; \
|
|
} \
|
|
p += src_wrap; \
|
|
q += dst_wrap; \
|
|
} \
|
|
}
|
|
|
|
/* copy bit n to bits 0 ... n - 1 */
|
|
static inline unsigned int bitcopy_n(unsigned int a, int n)
|
|
{
|
|
int mask;
|
|
mask = (1 << n) - 1;
|
|
return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask);
|
|
}
|
|
|
|
/* rgb555 handling */
|
|
|
|
#define RGB_IN(r, g, b, s)\
|
|
{\
|
|
unsigned int v = ((const uint16_t *)(s))[0];\
|
|
r = bitcopy_n(v >> (10 - 3), 3);\
|
|
g = bitcopy_n(v >> (5 - 3), 3);\
|
|
b = bitcopy_n(v << 3, 3);\
|
|
}
|
|
|
|
#define RGB_OUT(d, r, g, b)\
|
|
{\
|
|
((uint16_t *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | 0x8000;\
|
|
}
|
|
|
|
#define BPP 2
|
|
|
|
RGB_FUNCTIONS(rgb555)
|
|
|
|
#undef RGB_IN
|
|
#undef RGB_OUT
|
|
#undef BPP
|
|
|
|
/* rgb565 handling */
|
|
|
|
#define RGB_IN(r, g, b, s)\
|
|
{\
|
|
unsigned int v = ((const uint16_t *)(s))[0];\
|
|
r = bitcopy_n(v >> (11 - 3), 3);\
|
|
g = bitcopy_n(v >> (5 - 2), 2);\
|
|
b = bitcopy_n(v << 3, 3);\
|
|
}
|
|
|
|
#define RGB_OUT(d, r, g, b)\
|
|
{\
|
|
((uint16_t *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\
|
|
}
|
|
|
|
#define BPP 2
|
|
|
|
RGB_FUNCTIONS(rgb565)
|
|
|
|
#undef RGB_IN
|
|
#undef RGB_OUT
|
|
#undef BPP
|
|
|
|
/* bgr24 handling */
|
|
|
|
#define RGB_IN(r, g, b, s)\
|
|
{\
|
|
b = (s)[0];\
|
|
g = (s)[1];\
|
|
r = (s)[2];\
|
|
}
|
|
|
|
#define RGB_OUT(d, r, g, b)\
|
|
{\
|
|
(d)[0] = b;\
|
|
(d)[1] = g;\
|
|
(d)[2] = r;\
|
|
}
|
|
|
|
#define BPP 3
|
|
|
|
RGB_FUNCTIONS(bgr24)
|
|
|
|
#undef RGB_IN
|
|
#undef RGB_OUT
|
|
#undef BPP
|
|
|
|
/* rgb24 handling */
|
|
|
|
#define RGB_IN(r, g, b, s)\
|
|
{\
|
|
r = (s)[0];\
|
|
g = (s)[1];\
|
|
b = (s)[2];\
|
|
}
|
|
|
|
#define RGB_OUT(d, r, g, b)\
|
|
{\
|
|
(d)[0] = r;\
|
|
(d)[1] = g;\
|
|
(d)[2] = b;\
|
|
}
|
|
|
|
#define BPP 3
|
|
|
|
RGB_FUNCTIONS(rgb24)
|
|
|
|
#undef RGB_IN
|
|
#undef RGB_OUT
|
|
#undef BPP
|
|
|
|
/* rgba32 handling */
|
|
|
|
#define RGB_IN(r, g, b, s)\
|
|
{\
|
|
unsigned int v = ((const uint32_t *)(s))[0];\
|
|
r = (v >> 16) & 0xff;\
|
|
g = (v >> 8) & 0xff;\
|
|
b = v & 0xff;\
|
|
}
|
|
|
|
#define RGB_OUT(d, r, g, b)\
|
|
{\
|
|
((uint32_t *)(d))[0] = (0xff << 24) | (r << 16) | (g << 8) | b;\
|
|
}
|
|
|
|
#define BPP 4
|
|
|
|
RGB_FUNCTIONS(rgba32)
|
|
|
|
#undef RGB_IN
|
|
#undef RGB_OUT
|
|
#undef BPP
|
|
|
|
|
|
static void rgb24_to_rgb565(AVPicture *dst, AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
const unsigned char *p;
|
|
unsigned char *q;
|
|
int r, g, b, dst_wrap, src_wrap;
|
|
int x, y;
|
|
|
|
p = src->data[0];
|
|
src_wrap = src->linesize[0] - 3 * width;
|
|
|
|
q = dst->data[0];
|
|
dst_wrap = dst->linesize[0] - 2 * width;
|
|
|
|
for(y=0;y<height;y++) {
|
|
for(x=0;x<width;x++) {
|
|
r = p[0];
|
|
g = p[1];
|
|
b = p[2];
|
|
|
|
((unsigned short *)q)[0] =
|
|
((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
|
|
q += 2;
|
|
p += 3;
|
|
}
|
|
p += src_wrap;
|
|
q += dst_wrap;
|
|
}
|
|
}
|
|
|
|
/* NOTE: we also add a dummy alpha bit */
|
|
static void rgb24_to_rgb555(AVPicture *dst, AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
const unsigned char *p;
|
|
unsigned char *q;
|
|
int r, g, b, dst_wrap, src_wrap;
|
|
int x, y;
|
|
|
|
p = src->data[0];
|
|
src_wrap = src->linesize[0] - 3 * width;
|
|
|
|
q = dst->data[0];
|
|
dst_wrap = dst->linesize[0] - 2 * width;
|
|
|
|
for(y=0;y<height;y++) {
|
|
for(x=0;x<width;x++) {
|
|
r = p[0];
|
|
g = p[1];
|
|
b = p[2];
|
|
|
|
((unsigned short *)q)[0] =
|
|
((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | 0x8000;
|
|
q += 2;
|
|
p += 3;
|
|
}
|
|
p += src_wrap;
|
|
q += dst_wrap;
|
|
}
|
|
}
|
|
|
|
static void mono_to_gray(AVPicture *dst, AVPicture *src,
|
|
int width, int height, int xor_mask)
|
|
{
|
|
const unsigned char *p;
|
|
unsigned char *q;
|
|
int v, dst_wrap, src_wrap;
|
|
int y, w;
|
|
|
|
p = src->data[0];
|
|
src_wrap = src->linesize[0] - ((width + 7) >> 3);
|
|
|
|
q = dst->data[0];
|
|
dst_wrap = dst->linesize[0] - width;
|
|
for(y=0;y<height;y++) {
|
|
w = width;
|
|
while (w >= 8) {
|
|
v = *p++ ^ xor_mask;
|
|
q[0] = -(v >> 7);
|
|
q[1] = -((v >> 6) & 1);
|
|
q[2] = -((v >> 5) & 1);
|
|
q[3] = -((v >> 4) & 1);
|
|
q[4] = -((v >> 3) & 1);
|
|
q[5] = -((v >> 2) & 1);
|
|
q[6] = -((v >> 1) & 1);
|
|
q[7] = -((v >> 0) & 1);
|
|
w -= 8;
|
|
q += 8;
|
|
}
|
|
if (w > 0) {
|
|
v = *p++ ^ xor_mask;
|
|
do {
|
|
q[0] = -((v >> 7) & 1);
|
|
q++;
|
|
v <<= 1;
|
|
} while (--w);
|
|
}
|
|
p += src_wrap;
|
|
q += dst_wrap;
|
|
}
|
|
}
|
|
|
|
static void monowhite_to_gray(AVPicture *dst, AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
mono_to_gray(dst, src, width, height, 0xff);
|
|
}
|
|
|
|
static void monoblack_to_gray(AVPicture *dst, AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
mono_to_gray(dst, src, width, height, 0x00);
|
|
}
|
|
|
|
static void gray_to_mono(AVPicture *dst, AVPicture *src,
|
|
int width, int height, int xor_mask)
|
|
{
|
|
int n;
|
|
const uint8_t *s;
|
|
uint8_t *d;
|
|
int j, b, v, n1, src_wrap, dst_wrap, y;
|
|
|
|
s = src->data[0];
|
|
src_wrap = src->linesize[0] - width;
|
|
|
|
d = dst->data[0];
|
|
dst_wrap = dst->linesize[0] - ((width + 7) >> 3);
|
|
|
|
for(y=0;y<height;y++) {
|
|
n = width;
|
|
while (n >= 8) {
|
|
v = 0;
|
|
for(j=0;j<8;j++) {
|
|
b = s[0];
|
|
s++;
|
|
v = (v << 1) | (b >> 7);
|
|
}
|
|
d[0] = v ^ xor_mask;
|
|
d++;
|
|
n -= 8;
|
|
}
|
|
if (n > 0) {
|
|
n1 = n;
|
|
v = 0;
|
|
while (n > 0) {
|
|
b = s[0];
|
|
s++;
|
|
v = (v << 1) | (b >> 7);
|
|
n--;
|
|
}
|
|
d[0] = (v << (8 - (n1 & 7))) ^ xor_mask;
|
|
d++;
|
|
}
|
|
s += src_wrap;
|
|
d += dst_wrap;
|
|
}
|
|
}
|
|
|
|
static void gray_to_monowhite(AVPicture *dst, AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
gray_to_mono(dst, src, width, height, 0xff);
|
|
}
|
|
|
|
static void gray_to_monoblack(AVPicture *dst, AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
gray_to_mono(dst, src, width, height, 0x00);
|
|
}
|
|
|
|
/* this is maybe slow, but allows for extensions */
|
|
static inline unsigned char gif_clut_index(uint8_t r, uint8_t g, uint8_t b)
|
|
{
|
|
return ((((r)/47)%6)*6*6+(((g)/47)%6)*6+(((b)/47)%6));
|
|
}
|
|
|
|
/* XXX: put jpeg quantize code instead */
|
|
static void rgb24_to_pal8(AVPicture *dst, AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
const unsigned char *p;
|
|
unsigned char *q;
|
|
int r, g, b, dst_wrap, src_wrap;
|
|
int x, y, i;
|
|
static const uint8_t pal_value[6] = { 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff };
|
|
uint32_t *pal;
|
|
|
|
p = src->data[0];
|
|
src_wrap = src->linesize[0] - 3 * width;
|
|
|
|
q = dst->data[0];
|
|
dst_wrap = dst->linesize[0] - width;
|
|
|
|
for(y=0;y<height;y++) {
|
|
for(x=0;x<width;x++) {
|
|
r = p[0];
|
|
g = p[1];
|
|
b = p[2];
|
|
|
|
q[0] = gif_clut_index(r, g, b);
|
|
q++;
|
|
p += 3;
|
|
}
|
|
p += src_wrap;
|
|
q += dst_wrap;
|
|
}
|
|
|
|
/* build palette */
|
|
pal = (uint32_t *)dst->data[1];
|
|
i = 0;
|
|
for(r = 0; r < 6; r++) {
|
|
for(g = 0; g < 6; g++) {
|
|
for(b = 0; b < 6; b++) {
|
|
pal[i++] = (0xff << 24) | (pal_value[r] << 16) |
|
|
(pal_value[g] << 8) | pal_value[b];
|
|
}
|
|
}
|
|
}
|
|
while (i < 256)
|
|
pal[i++] = 0;
|
|
}
|
|
|
|
static void rgba32_to_rgb24(AVPicture *dst, AVPicture *src,
|
|
int width, int height)
|
|
{
|
|
const uint8_t *s;
|
|
uint8_t *d;
|
|
int src_wrap, dst_wrap, j, y;
|
|
unsigned int v;
|
|
|
|
s = src->data[0];
|
|
src_wrap = src->linesize[0] - width * 4;
|
|
|
|
d = dst->data[0];
|
|
dst_wrap = dst->linesize[0] - width * 3;
|
|
|
|
for(y=0;y<height;y++) {
|
|
for(j = 0;j < width; j++) {
|
|
v = *(uint32_t *)s;
|
|
s += 4;
|
|
d[0] = v >> 16;
|
|
d[1] = v >> 8;
|
|
d[2] = v;
|
|
d += 3;
|
|
}
|
|
s += src_wrap;
|
|
d += dst_wrap;
|
|
}
|
|
}
|
|
|
|
typedef struct ConvertEntry {
|
|
void (*convert)(AVPicture *dst, AVPicture *src, int width, int height);
|
|
} ConvertEntry;
|
|
|
|
/* add each new convertion function in this table */
|
|
/* constraints;
|
|
- all non YUV modes must convert at least to and from PIX_FMT_RGB24
|
|
*/
|
|
static ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = {
|
|
[PIX_FMT_YUV420P] = {
|
|
[PIX_FMT_RGB555] = {
|
|
.convert = yuv420p_to_rgb555
|
|
},
|
|
[PIX_FMT_RGB565] = {
|
|
.convert = yuv420p_to_rgb565
|
|
},
|
|
[PIX_FMT_BGR24] = {
|
|
.convert = yuv420p_to_bgr24
|
|
},
|
|
[PIX_FMT_RGB24] = {
|
|
.convert = yuv420p_to_rgb24
|
|
},
|
|
[PIX_FMT_RGBA32] = {
|
|
.convert = yuv420p_to_rgba32
|
|
},
|
|
},
|
|
[PIX_FMT_YUV422P] = {
|
|
[PIX_FMT_RGB555] = {
|
|
.convert = yuv422p_to_rgb555
|
|
},
|
|
[PIX_FMT_RGB565] = {
|
|
.convert = yuv422p_to_rgb565
|
|
},
|
|
[PIX_FMT_BGR24] = {
|
|
.convert = yuv422p_to_bgr24
|
|
},
|
|
[PIX_FMT_RGB24] = {
|
|
.convert = yuv422p_to_rgb24
|
|
},
|
|
[PIX_FMT_RGBA32] = {
|
|
.convert = yuv422p_to_rgba32
|
|
},
|
|
},
|
|
[PIX_FMT_YUV422] = {
|
|
[PIX_FMT_YUV420P] = {
|
|
.convert = yuv422_to_yuv420p,
|
|
},
|
|
},
|
|
|
|
[PIX_FMT_RGB24] = {
|
|
[PIX_FMT_YUV420P] = {
|
|
.convert = rgb24_to_yuv420p
|
|
},
|
|
[PIX_FMT_RGB565] = {
|
|
.convert = rgb24_to_rgb565
|
|
},
|
|
[PIX_FMT_RGB555] = {
|
|
.convert = rgb24_to_rgb555
|
|
},
|
|
[PIX_FMT_GRAY8] = {
|
|
.convert = rgb24_to_gray
|
|
},
|
|
[PIX_FMT_PAL8] = {
|
|
.convert = rgb24_to_pal8
|
|
},
|
|
},
|
|
[PIX_FMT_RGBA32] = {
|
|
[PIX_FMT_YUV420P] = {
|
|
.convert = rgba32_to_yuv420p
|
|
},
|
|
[PIX_FMT_GRAY8] = {
|
|
.convert = rgba32_to_gray
|
|
},
|
|
[PIX_FMT_RGB24] = {
|
|
.convert = rgba32_to_rgb24
|
|
},
|
|
},
|
|
[PIX_FMT_BGR24] = {
|
|
[PIX_FMT_YUV420P] = {
|
|
.convert = bgr24_to_yuv420p
|
|
},
|
|
[PIX_FMT_GRAY8] = {
|
|
.convert = bgr24_to_gray
|
|
},
|
|
},
|
|
[PIX_FMT_RGB555] = {
|
|
[PIX_FMT_YUV420P] = {
|
|
.convert = rgb555_to_yuv420p
|
|
},
|
|
[PIX_FMT_GRAY8] = {
|
|
.convert = rgb555_to_gray
|
|
},
|
|
},
|
|
[PIX_FMT_RGB565] = {
|
|
[PIX_FMT_YUV420P] = {
|
|
.convert = rgb565_to_yuv420p
|
|
},
|
|
[PIX_FMT_GRAY8] = {
|
|
.convert = rgb565_to_gray
|
|
},
|
|
},
|
|
[PIX_FMT_GRAY8] = {
|
|
[PIX_FMT_RGB555] = {
|
|
.convert = gray_to_rgb555
|
|
},
|
|
[PIX_FMT_RGB565] = {
|
|
.convert = gray_to_rgb565
|
|
},
|
|
[PIX_FMT_RGB24] = {
|
|
.convert = gray_to_rgb24
|
|
},
|
|
[PIX_FMT_BGR24] = {
|
|
.convert = gray_to_bgr24
|
|
},
|
|
[PIX_FMT_RGBA32] = {
|
|
.convert = gray_to_rgba32
|
|
},
|
|
[PIX_FMT_MONOWHITE] = {
|
|
.convert = gray_to_monowhite
|
|
},
|
|
[PIX_FMT_MONOBLACK] = {
|
|
.convert = gray_to_monoblack
|
|
},
|
|
},
|
|
[PIX_FMT_MONOWHITE] = {
|
|
[PIX_FMT_GRAY8] = {
|
|
.convert = monowhite_to_gray
|
|
},
|
|
},
|
|
[PIX_FMT_MONOBLACK] = {
|
|
[PIX_FMT_GRAY8] = {
|
|
.convert = monoblack_to_gray
|
|
},
|
|
},
|
|
[PIX_FMT_PAL8] = {
|
|
[PIX_FMT_RGB555] = {
|
|
.convert = pal8_to_rgb555
|
|
},
|
|
[PIX_FMT_RGB565] = {
|
|
.convert = pal8_to_rgb565
|
|
},
|
|
[PIX_FMT_BGR24] = {
|
|
.convert = pal8_to_bgr24
|
|
},
|
|
[PIX_FMT_RGB24] = {
|
|
.convert = pal8_to_rgb24
|
|
},
|
|
[PIX_FMT_RGBA32] = {
|
|
.convert = pal8_to_rgba32
|
|
},
|
|
},
|
|
};
|
|
|
|
static int avpicture_alloc(AVPicture *picture,
|
|
int pix_fmt, int width, int height)
|
|
{
|
|
unsigned int size;
|
|
void *ptr;
|
|
|
|
size = avpicture_get_size(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);
|
|
return 0;
|
|
fail:
|
|
memset(picture, 0, sizeof(AVPicture));
|
|
return -1;
|
|
}
|
|
|
|
static void avpicture_free(AVPicture *picture)
|
|
{
|
|
av_free(picture->data[0]);
|
|
}
|
|
|
|
/* XXX: always use linesize. Return -1 if not supported */
|
|
int img_convert(AVPicture *dst, int dst_pix_fmt,
|
|
AVPicture *src, int src_pix_fmt,
|
|
int src_width, int src_height)
|
|
{
|
|
int i, ret, dst_width, dst_height, int_pix_fmt;
|
|
PixFmtInfo *src_pix, *dst_pix;
|
|
ConvertEntry *ce;
|
|
AVPicture tmp1, *tmp = &tmp1;
|
|
|
|
if (src_pix_fmt < 0 || src_pix_fmt >= PIX_FMT_NB ||
|
|
dst_pix_fmt < 0 || dst_pix_fmt >= PIX_FMT_NB)
|
|
return -1;
|
|
if (src_width <= 0 || src_height <= 0)
|
|
return 0;
|
|
|
|
dst_width = src_width;
|
|
dst_height = src_height;
|
|
|
|
dst_pix = &pix_fmt_info[dst_pix_fmt];
|
|
src_pix = &pix_fmt_info[src_pix_fmt];
|
|
if (src_pix_fmt == dst_pix_fmt) {
|
|
/* XXX: incorrect */
|
|
/* same format: just copy */
|
|
for(i = 0; i < dst_pix->nb_components; i++) {
|
|
int w, h;
|
|
w = dst_width;
|
|
h = dst_height;
|
|
if (dst_pix->is_yuv && (i == 1 || i == 2)) {
|
|
w >>= dst_pix->x_chroma_shift;
|
|
h >>= dst_pix->y_chroma_shift;
|
|
}
|
|
img_copy(dst->data[i], dst->linesize[i],
|
|
src->data[i], src->linesize[i],
|
|
w, h);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
ce = &convert_table[src_pix_fmt][dst_pix_fmt];
|
|
if (ce->convert) {
|
|
/* specific convertion routine */
|
|
ce->convert(dst, src, dst_width, dst_height);
|
|
return 0;
|
|
}
|
|
|
|
/* gray to YUV */
|
|
if (dst_pix->is_yuv && src_pix_fmt == PIX_FMT_GRAY8) {
|
|
int w, h, y;
|
|
uint8_t *d;
|
|
|
|
img_copy(dst->data[0], dst->linesize[0],
|
|
src->data[0], src->linesize[0],
|
|
dst_width, dst_height);
|
|
/* fill U and V with 128 */
|
|
w = dst_width;
|
|
h = dst_height;
|
|
w >>= dst_pix->x_chroma_shift;
|
|
h >>= dst_pix->y_chroma_shift;
|
|
for(i = 1; i <= 2; i++) {
|
|
d = dst->data[i];
|
|
for(y = 0; y< h; y++) {
|
|
memset(d, 128, w);
|
|
d += dst->linesize[i];
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* YUV to gray */
|
|
if (src_pix->is_yuv && dst_pix_fmt == PIX_FMT_GRAY8) {
|
|
img_copy(dst->data[0], dst->linesize[0],
|
|
src->data[0], src->linesize[0],
|
|
dst_width, dst_height);
|
|
return 0;
|
|
}
|
|
|
|
/* YUV to YUV */
|
|
if (dst_pix->is_yuv && src_pix->is_yuv) {
|
|
int x_shift, y_shift, w, h;
|
|
void (*resize_func)(uint8_t *dst, int dst_wrap,
|
|
uint8_t *src, int src_wrap,
|
|
int width, int height);
|
|
|
|
/* compute chroma size of the smallest dimensions */
|
|
w = dst_width;
|
|
h = dst_height;
|
|
if (dst_pix->x_chroma_shift >= src_pix->x_chroma_shift)
|
|
w >>= dst_pix->x_chroma_shift;
|
|
else
|
|
w >>= src_pix->x_chroma_shift;
|
|
if (dst_pix->y_chroma_shift >= src_pix->y_chroma_shift)
|
|
h >>= dst_pix->y_chroma_shift;
|
|
else
|
|
h >>= src_pix->y_chroma_shift;
|
|
|
|
x_shift = (dst_pix->x_chroma_shift - src_pix->x_chroma_shift);
|
|
y_shift = (dst_pix->y_chroma_shift - src_pix->y_chroma_shift);
|
|
if (x_shift == 0 && y_shift == 0) {
|
|
resize_func = img_copy; /* should never happen */
|
|
} else if (x_shift == 0 && y_shift == 1) {
|
|
resize_func = shrink2;
|
|
} else if (x_shift == 1 && y_shift == 1) {
|
|
resize_func = shrink22;
|
|
} else if (x_shift == -1 && y_shift == -1) {
|
|
resize_func = grow22;
|
|
} else if (x_shift == -1 && y_shift == 1) {
|
|
resize_func = conv411;
|
|
} else {
|
|
/* currently not handled */
|
|
return -1;
|
|
}
|
|
|
|
img_copy(dst->data[0], dst->linesize[0],
|
|
src->data[0], src->linesize[0],
|
|
dst_width, dst_height);
|
|
|
|
for(i = 1;i <= 2; i++)
|
|
resize_func(dst->data[i], dst->linesize[i],
|
|
src->data[i], src->linesize[i],
|
|
dst_width>>dst_pix->x_chroma_shift, dst_height>>dst_pix->y_chroma_shift);
|
|
return 0;
|
|
}
|
|
|
|
/* try to use an intermediate format */
|
|
if (src_pix_fmt == PIX_FMT_MONOWHITE ||
|
|
src_pix_fmt == PIX_FMT_MONOBLACK ||
|
|
dst_pix_fmt == PIX_FMT_MONOWHITE ||
|
|
dst_pix_fmt == PIX_FMT_MONOBLACK) {
|
|
int_pix_fmt = PIX_FMT_GRAY8;
|
|
} else {
|
|
int_pix_fmt = PIX_FMT_RGB24;
|
|
}
|
|
if (avpicture_alloc(tmp, int_pix_fmt, dst_width, dst_height) < 0)
|
|
return -1;
|
|
ret = -1;
|
|
if (img_convert(tmp, int_pix_fmt,
|
|
src, src_pix_fmt, src_width, src_height) < 0)
|
|
goto fail1;
|
|
if (img_convert(dst, dst_pix_fmt,
|
|
tmp, int_pix_fmt, dst_width, dst_height) < 0)
|
|
goto fail1;
|
|
ret = 0;
|
|
fail1:
|
|
avpicture_free(tmp);
|
|
return ret;
|
|
}
|
|
|
|
|
|
#ifdef HAVE_MMX
|
|
#define DEINT_INPLACE_LINE_LUM \
|
|
movd_m2r(lum_m4[0],mm0);\
|
|
movd_m2r(lum_m3[0],mm1);\
|
|
movd_m2r(lum_m2[0],mm2);\
|
|
movd_m2r(lum_m1[0],mm3);\
|
|
movd_m2r(lum[0],mm4);\
|
|
punpcklbw_r2r(mm7,mm0);\
|
|
movd_r2m(mm2,lum_m4[0]);\
|
|
punpcklbw_r2r(mm7,mm1);\
|
|
punpcklbw_r2r(mm7,mm2);\
|
|
punpcklbw_r2r(mm7,mm3);\
|
|
punpcklbw_r2r(mm7,mm4);\
|
|
paddw_r2r(mm3,mm1);\
|
|
psllw_i2r(1,mm2);\
|
|
paddw_r2r(mm4,mm0);\
|
|
psllw_i2r(2,mm1);\
|
|
paddw_r2r(mm6,mm2);\
|
|
paddw_r2r(mm2,mm1);\
|
|
psubusw_r2r(mm0,mm1);\
|
|
psrlw_i2r(3,mm1);\
|
|
packuswb_r2r(mm7,mm1);\
|
|
movd_r2m(mm1,lum_m2[0]);
|
|
|
|
#define DEINT_LINE_LUM \
|
|
movd_m2r(lum_m4[0],mm0);\
|
|
movd_m2r(lum_m3[0],mm1);\
|
|
movd_m2r(lum_m2[0],mm2);\
|
|
movd_m2r(lum_m1[0],mm3);\
|
|
movd_m2r(lum[0],mm4);\
|
|
punpcklbw_r2r(mm7,mm0);\
|
|
punpcklbw_r2r(mm7,mm1);\
|
|
punpcklbw_r2r(mm7,mm2);\
|
|
punpcklbw_r2r(mm7,mm3);\
|
|
punpcklbw_r2r(mm7,mm4);\
|
|
paddw_r2r(mm3,mm1);\
|
|
psllw_i2r(1,mm2);\
|
|
paddw_r2r(mm4,mm0);\
|
|
psllw_i2r(2,mm1);\
|
|
paddw_r2r(mm6,mm2);\
|
|
paddw_r2r(mm2,mm1);\
|
|
psubusw_r2r(mm0,mm1);\
|
|
psrlw_i2r(3,mm1);\
|
|
packuswb_r2r(mm7,mm1);\
|
|
movd_r2m(mm1,dst[0]);
|
|
#endif
|
|
|
|
/* filter parameters: [-1 4 2 4 -1] // 8 */
|
|
static void deinterlace_line(uint8_t *dst, uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum,
|
|
int size)
|
|
{
|
|
#ifndef HAVE_MMX
|
|
uint8_t *cm = 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++;
|
|
}
|
|
#else
|
|
|
|
{
|
|
mmx_t rounder;
|
|
rounder.uw[0]=4;
|
|
rounder.uw[1]=4;
|
|
rounder.uw[2]=4;
|
|
rounder.uw[3]=4;
|
|
pxor_r2r(mm7,mm7);
|
|
movq_m2r(rounder,mm6);
|
|
}
|
|
for (;size > 3; size-=4) {
|
|
DEINT_LINE_LUM
|
|
lum_m4+=4;
|
|
lum_m3+=4;
|
|
lum_m2+=4;
|
|
lum_m1+=4;
|
|
lum+=4;
|
|
dst+=4;
|
|
}
|
|
#endif
|
|
}
|
|
static void deinterlace_line_inplace(uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum,
|
|
int size)
|
|
{
|
|
#ifndef HAVE_MMX
|
|
uint8_t *cm = 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++;
|
|
}
|
|
#else
|
|
|
|
{
|
|
mmx_t rounder;
|
|
rounder.uw[0]=4;
|
|
rounder.uw[1]=4;
|
|
rounder.uw[2]=4;
|
|
rounder.uw[3]=4;
|
|
pxor_r2r(mm7,mm7);
|
|
movq_m2r(rounder,mm6);
|
|
}
|
|
for (;size > 3; size-=4) {
|
|
DEINT_INPLACE_LINE_LUM
|
|
lum_m4+=4;
|
|
lum_m3+=4;
|
|
lum_m2+=4;
|
|
lum_m1+=4;
|
|
lum+=4;
|
|
}
|
|
#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,
|
|
uint8_t *src1, int src_wrap,
|
|
int width, int height)
|
|
{
|
|
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);
|
|
}
|
|
|
|
|
|
/* deinterlace - if not supported return -1 */
|
|
int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
|
|
int pix_fmt, int width, int height)
|
|
{
|
|
int i;
|
|
|
|
if (pix_fmt != PIX_FMT_YUV420P &&
|
|
pix_fmt != PIX_FMT_YUV422P &&
|
|
pix_fmt != PIX_FMT_YUV444P)
|
|
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;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
if (src == dst) {
|
|
deinterlace_bottom_field_inplace(src->data[i], src->linesize[i],
|
|
width, height);
|
|
} else {
|
|
deinterlace_bottom_field(dst->data[i],dst->linesize[i],
|
|
src->data[i], src->linesize[i],
|
|
width, height);
|
|
}
|
|
}
|
|
#ifdef HAVE_MMX
|
|
emms();
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#undef FIX
|