1650 lines
47 KiB
C
1650 lines
47 KiB
C
/*
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* Misc image conversion routines
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* Copyright (c) 2001, 2002, 2003 Fabrice Bellard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file libavcodec/imgconvert.c
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* misc image conversion routines
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*/
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/* TODO:
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* - write 'ffimg' program to test all the image related stuff
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* - move all api to slice based system
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* - integrate deinterlacing, postprocessing and scaling in the conversion process
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*/
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#include "avcodec.h"
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#include "dsputil.h"
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#include "colorspace.h"
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#if HAVE_MMX
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#include "x86/mmx.h"
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#include "x86/dsputil_mmx.h"
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#endif
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#define xglue(x, y) x ## y
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#define glue(x, y) xglue(x, y)
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#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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#define FF_PIXEL_PLANAR 0 /**< each channel has one component in AVPicture */
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#define FF_PIXEL_PACKED 1 /**< only one components containing all the channels */
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#define FF_PIXEL_PALETTE 2 /**< one components containing indexes for a palette */
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typedef struct PixFmtInfo {
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const char *name;
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uint8_t nb_channels; /**< number of channels (including alpha) */
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uint8_t color_type; /**< color type (see FF_COLOR_xxx constants) */
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uint8_t pixel_type; /**< pixel storage type (see FF_PIXEL_xxx constants) */
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uint8_t is_alpha : 1; /**< true if alpha can be specified */
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uint8_t is_hwaccel : 1; /**< true if this is an HW accelerated 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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uint8_t depth; /**< bit depth of the color components */
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} PixFmtInfo;
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/* this table gives more information about formats */
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static const PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
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/* YUV formats */
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[PIX_FMT_YUV420P] = {
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.name = "yuv420p",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.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_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.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_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUYV422] = {
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.name = "yuyv422",
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.nb_channels = 1,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 8,
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.x_chroma_shift = 1, .y_chroma_shift = 0,
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},
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[PIX_FMT_UYVY422] = {
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.name = "uyvy422",
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.nb_channels = 1,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 8,
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.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_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.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_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.x_chroma_shift = 2, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUV440P] = {
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.name = "yuv440p",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 1,
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},
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[PIX_FMT_YUV420PLE] = {
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.name = "yuv420ple",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 16,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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[PIX_FMT_YUV422PLE] = {
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.name = "yuv422ple",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 16,
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.x_chroma_shift = 1, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUV444PLE] = {
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.name = "yuv444ple",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 16,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUV420PBE] = {
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.name = "yuv420pbe",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 16,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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[PIX_FMT_YUV422PBE] = {
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.name = "yuv422pbe",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 16,
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.x_chroma_shift = 1, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUV444PBE] = {
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.name = "yuv444pbe",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 16,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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/* YUV formats with alpha plane */
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[PIX_FMT_YUVA420P] = {
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.name = "yuva420p",
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.nb_channels = 4,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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/* JPEG YUV */
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[PIX_FMT_YUVJ420P] = {
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.name = "yuvj420p",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV_JPEG,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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[PIX_FMT_YUVJ422P] = {
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.name = "yuvj422p",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV_JPEG,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.x_chroma_shift = 1, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUVJ444P] = {
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.name = "yuvj444p",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV_JPEG,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_YUVJ440P] = {
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.name = "yuvj440p",
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.nb_channels = 3,
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.color_type = FF_COLOR_YUV_JPEG,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 1,
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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_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_BGR24] = {
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.name = "bgr24",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_ARGB] = {
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.name = "argb",
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.nb_channels = 4, .is_alpha = 1,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_RGB48BE] = {
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.name = "rgb48be",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 16,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_RGB48LE] = {
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.name = "rgb48le",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 16,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_RGB565BE] = {
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.name = "rgb565be",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 5,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_RGB565LE] = {
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.name = "rgb565le",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 5,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_RGB555BE] = {
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.name = "rgb555be",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 5,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_RGB555LE] = {
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.name = "rgb555le",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 5,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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/* gray / mono formats */
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[PIX_FMT_GRAY16BE] = {
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.name = "gray16be",
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.nb_channels = 1,
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.color_type = FF_COLOR_GRAY,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 16,
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},
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[PIX_FMT_GRAY16LE] = {
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.name = "gray16le",
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.nb_channels = 1,
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.color_type = FF_COLOR_GRAY,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 16,
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},
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[PIX_FMT_GRAY8] = {
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.name = "gray",
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.nb_channels = 1,
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.color_type = FF_COLOR_GRAY,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 8,
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},
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[PIX_FMT_MONOWHITE] = {
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.name = "monow",
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.nb_channels = 1,
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.color_type = FF_COLOR_GRAY,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 1,
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},
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[PIX_FMT_MONOBLACK] = {
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.name = "monob",
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.nb_channels = 1,
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.color_type = FF_COLOR_GRAY,
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.pixel_type = FF_PIXEL_PLANAR,
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.depth = 1,
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},
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/* paletted formats */
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[PIX_FMT_PAL8] = {
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.name = "pal8",
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.nb_channels = 4, .is_alpha = 1,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PALETTE,
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.depth = 8,
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},
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[PIX_FMT_XVMC_MPEG2_MC] = {
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.name = "xvmcmc",
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.is_hwaccel = 1,
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},
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[PIX_FMT_XVMC_MPEG2_IDCT] = {
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.name = "xvmcidct",
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.is_hwaccel = 1,
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},
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[PIX_FMT_VDPAU_MPEG1] = {
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.name = "vdpau_mpeg1",
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.is_hwaccel = 1,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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[PIX_FMT_VDPAU_MPEG2] = {
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.name = "vdpau_mpeg2",
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.is_hwaccel = 1,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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[PIX_FMT_VDPAU_H264] = {
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.name = "vdpau_h264",
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.is_hwaccel = 1,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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[PIX_FMT_VDPAU_WMV3] = {
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.name = "vdpau_wmv3",
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.is_hwaccel = 1,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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[PIX_FMT_VDPAU_VC1] = {
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.name = "vdpau_vc1",
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.is_hwaccel = 1,
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.x_chroma_shift = 1, .y_chroma_shift = 1,
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},
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[PIX_FMT_UYYVYY411] = {
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.name = "uyyvyy411",
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.nb_channels = 1,
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.color_type = FF_COLOR_YUV,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 8,
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.x_chroma_shift = 2, .y_chroma_shift = 0,
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},
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[PIX_FMT_ABGR] = {
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.name = "abgr",
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.nb_channels = 4, .is_alpha = 1,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_BGR565BE] = {
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.name = "bgr565be",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 5,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_BGR565LE] = {
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.name = "bgr565le",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 5,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_BGR555BE] = {
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.name = "bgr555be",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 5,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_BGR555LE] = {
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.name = "bgr555le",
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.nb_channels = 3,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 5,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_RGB8] = {
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.name = "rgb8",
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.nb_channels = 1,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_RGB4] = {
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.name = "rgb4",
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.nb_channels = 1,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 4,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_RGB4_BYTE] = {
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.name = "rgb4_byte",
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.nb_channels = 1,
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.color_type = FF_COLOR_RGB,
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.pixel_type = FF_PIXEL_PACKED,
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.depth = 8,
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.x_chroma_shift = 0, .y_chroma_shift = 0,
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},
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[PIX_FMT_BGR8] = {
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.name = "bgr8",
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.nb_channels = 1,
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.color_type = FF_COLOR_RGB,
|
|
.pixel_type = FF_PIXEL_PACKED,
|
|
.depth = 8,
|
|
.x_chroma_shift = 0, .y_chroma_shift = 0,
|
|
},
|
|
[PIX_FMT_BGR4] = {
|
|
.name = "bgr4",
|
|
.nb_channels = 1,
|
|
.color_type = FF_COLOR_RGB,
|
|
.pixel_type = FF_PIXEL_PACKED,
|
|
.depth = 4,
|
|
.x_chroma_shift = 0, .y_chroma_shift = 0,
|
|
},
|
|
[PIX_FMT_BGR4_BYTE] = {
|
|
.name = "bgr4_byte",
|
|
.nb_channels = 1,
|
|
.color_type = FF_COLOR_RGB,
|
|
.pixel_type = FF_PIXEL_PACKED,
|
|
.depth = 8,
|
|
.x_chroma_shift = 0, .y_chroma_shift = 0,
|
|
},
|
|
[PIX_FMT_NV12] = {
|
|
.name = "nv12",
|
|
.nb_channels = 2,
|
|
.color_type = FF_COLOR_YUV,
|
|
.pixel_type = FF_PIXEL_PLANAR,
|
|
.depth = 8,
|
|
.x_chroma_shift = 1, .y_chroma_shift = 1,
|
|
},
|
|
[PIX_FMT_NV21] = {
|
|
.name = "nv12",
|
|
.nb_channels = 2,
|
|
.color_type = FF_COLOR_YUV,
|
|
.pixel_type = FF_PIXEL_PLANAR,
|
|
.depth = 8,
|
|
.x_chroma_shift = 1, .y_chroma_shift = 1,
|
|
},
|
|
|
|
[PIX_FMT_BGRA] = {
|
|
.name = "bgra",
|
|
.nb_channels = 4, .is_alpha = 1,
|
|
.color_type = FF_COLOR_RGB,
|
|
.pixel_type = FF_PIXEL_PACKED,
|
|
.depth = 8,
|
|
.x_chroma_shift = 0, .y_chroma_shift = 0,
|
|
},
|
|
[PIX_FMT_RGBA] = {
|
|
.name = "rgba",
|
|
.nb_channels = 4, .is_alpha = 1,
|
|
.color_type = FF_COLOR_RGB,
|
|
.pixel_type = FF_PIXEL_PACKED,
|
|
.depth = 8,
|
|
.x_chroma_shift = 0, .y_chroma_shift = 0,
|
|
},
|
|
|
|
/* VA API formats */
|
|
[PIX_FMT_VAAPI_MOCO] = {
|
|
.name = "vaapi_moco",
|
|
.is_hwaccel = 1,
|
|
.x_chroma_shift = 1, .y_chroma_shift = 1,
|
|
},
|
|
[PIX_FMT_VAAPI_IDCT] = {
|
|
.name = "vaapi_idct",
|
|
.is_hwaccel = 1,
|
|
.x_chroma_shift = 1, .y_chroma_shift = 1,
|
|
},
|
|
[PIX_FMT_VAAPI_VLD] = {
|
|
.name = "vaapi_vld",
|
|
.is_hwaccel = 1,
|
|
.x_chroma_shift = 1, .y_chroma_shift = 1,
|
|
},
|
|
};
|
|
|
|
void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *v_shift)
|
|
{
|
|
*h_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
|
|
*v_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
|
|
}
|
|
|
|
const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt)
|
|
{
|
|
if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB)
|
|
return NULL;
|
|
else
|
|
return pix_fmt_info[pix_fmt].name;
|
|
}
|
|
|
|
static enum PixelFormat avcodec_get_pix_fmt_internal(const char *name)
|
|
{
|
|
int i;
|
|
|
|
for (i=0; i < PIX_FMT_NB; i++)
|
|
if (pix_fmt_info[i].name && !strcmp(pix_fmt_info[i].name, name))
|
|
return i;
|
|
return PIX_FMT_NONE;
|
|
}
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
# define X_NE(be, le) be
|
|
#else
|
|
# define X_NE(be, le) le
|
|
#endif
|
|
|
|
enum PixelFormat avcodec_get_pix_fmt(const char *name)
|
|
{
|
|
enum PixelFormat pix_fmt;
|
|
|
|
if (!strcmp(name, "rgb32"))
|
|
name = X_NE("argb", "bgra");
|
|
else if (!strcmp(name, "bgr32"))
|
|
name = X_NE("abgr", "rgba");
|
|
|
|
pix_fmt = avcodec_get_pix_fmt_internal(name);
|
|
if (pix_fmt == PIX_FMT_NONE) {
|
|
char name2[32];
|
|
snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
|
|
pix_fmt = avcodec_get_pix_fmt_internal(name2);
|
|
}
|
|
return pix_fmt;
|
|
}
|
|
|
|
void avcodec_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
|
|
{
|
|
/* print header */
|
|
if (pix_fmt < 0)
|
|
snprintf (buf, buf_size,
|
|
"name " " nb_channels" " depth" " is_alpha"
|
|
);
|
|
else{
|
|
PixFmtInfo info= pix_fmt_info[pix_fmt];
|
|
|
|
char is_alpha_char= info.is_alpha ? 'y' : 'n';
|
|
|
|
snprintf (buf, buf_size,
|
|
"%-10s" " %1d " " %2d " " %c ",
|
|
info.name,
|
|
info.nb_channels,
|
|
info.depth,
|
|
is_alpha_char
|
|
);
|
|
}
|
|
}
|
|
|
|
int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt)
|
|
{
|
|
return pix_fmt_info[pix_fmt].is_hwaccel;
|
|
}
|
|
|
|
int ff_set_systematic_pal(uint32_t pal[256], enum PixelFormat pix_fmt){
|
|
int i;
|
|
|
|
for(i=0; i<256; i++){
|
|
int r,g,b;
|
|
|
|
switch(pix_fmt) {
|
|
case PIX_FMT_RGB8:
|
|
r= (i>>5 )*36;
|
|
g= ((i>>2)&7)*36;
|
|
b= (i&3 )*85;
|
|
break;
|
|
case PIX_FMT_BGR8:
|
|
b= (i>>6 )*85;
|
|
g= ((i>>3)&7)*36;
|
|
r= (i&7 )*36;
|
|
break;
|
|
case PIX_FMT_RGB4_BYTE:
|
|
r= (i>>3 )*255;
|
|
g= ((i>>1)&3)*85;
|
|
b= (i&1 )*255;
|
|
break;
|
|
case PIX_FMT_BGR4_BYTE:
|
|
b= (i>>3 )*255;
|
|
g= ((i>>1)&3)*85;
|
|
r= (i&1 )*255;
|
|
break;
|
|
case PIX_FMT_GRAY8:
|
|
r=b=g= i;
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
pal[i] = b + (g<<8) + (r<<16);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_fill_linesize(AVPicture *picture, enum PixelFormat pix_fmt, int width)
|
|
{
|
|
int w2;
|
|
const PixFmtInfo *pinfo;
|
|
|
|
memset(picture->linesize, 0, sizeof(picture->linesize));
|
|
|
|
pinfo = &pix_fmt_info[pix_fmt];
|
|
switch(pix_fmt) {
|
|
case PIX_FMT_YUV420P:
|
|
case PIX_FMT_YUV422P:
|
|
case PIX_FMT_YUV444P:
|
|
case PIX_FMT_YUV410P:
|
|
case PIX_FMT_YUV411P:
|
|
case PIX_FMT_YUV440P:
|
|
case PIX_FMT_YUVJ420P:
|
|
case PIX_FMT_YUVJ422P:
|
|
case PIX_FMT_YUVJ444P:
|
|
case PIX_FMT_YUVJ440P:
|
|
w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
|
|
picture->linesize[0] = width;
|
|
picture->linesize[1] = w2;
|
|
picture->linesize[2] = w2;
|
|
break;
|
|
case PIX_FMT_YUV420PLE:
|
|
case PIX_FMT_YUV422PLE:
|
|
case PIX_FMT_YUV444PLE:
|
|
case PIX_FMT_YUV420PBE:
|
|
case PIX_FMT_YUV422PBE:
|
|
case PIX_FMT_YUV444PBE:
|
|
w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
|
|
picture->linesize[0] = 2*width;
|
|
picture->linesize[1] = 2*w2;
|
|
picture->linesize[2] = 2*w2;
|
|
break;
|
|
case PIX_FMT_YUVA420P:
|
|
w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
|
|
picture->linesize[0] = width;
|
|
picture->linesize[1] = w2;
|
|
picture->linesize[2] = w2;
|
|
picture->linesize[3] = width;
|
|
break;
|
|
case PIX_FMT_NV12:
|
|
case PIX_FMT_NV21:
|
|
w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
|
|
picture->linesize[0] = width;
|
|
picture->linesize[1] = w2;
|
|
break;
|
|
case PIX_FMT_RGB24:
|
|
case PIX_FMT_BGR24:
|
|
picture->linesize[0] = width * 3;
|
|
break;
|
|
case PIX_FMT_ARGB:
|
|
case PIX_FMT_ABGR:
|
|
case PIX_FMT_RGBA:
|
|
case PIX_FMT_BGRA:
|
|
picture->linesize[0] = width * 4;
|
|
break;
|
|
case PIX_FMT_RGB48BE:
|
|
case PIX_FMT_RGB48LE:
|
|
picture->linesize[0] = width * 6;
|
|
break;
|
|
case PIX_FMT_GRAY16BE:
|
|
case PIX_FMT_GRAY16LE:
|
|
case PIX_FMT_BGR555:
|
|
case PIX_FMT_BGR565:
|
|
case PIX_FMT_RGB555:
|
|
case PIX_FMT_RGB565:
|
|
case PIX_FMT_YUYV422:
|
|
picture->linesize[0] = width * 2;
|
|
break;
|
|
case PIX_FMT_UYVY422:
|
|
picture->linesize[0] = width * 2;
|
|
break;
|
|
case PIX_FMT_UYYVYY411:
|
|
picture->linesize[0] = width + width/2;
|
|
break;
|
|
case PIX_FMT_RGB4:
|
|
case PIX_FMT_BGR4:
|
|
picture->linesize[0] = width / 2;
|
|
break;
|
|
case PIX_FMT_MONOWHITE:
|
|
case PIX_FMT_MONOBLACK:
|
|
picture->linesize[0] = (width + 7) >> 3;
|
|
break;
|
|
case PIX_FMT_PAL8:
|
|
case PIX_FMT_RGB8:
|
|
case PIX_FMT_BGR8:
|
|
case PIX_FMT_RGB4_BYTE:
|
|
case PIX_FMT_BGR4_BYTE:
|
|
case PIX_FMT_GRAY8:
|
|
picture->linesize[0] = width;
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int ff_fill_pointer(AVPicture *picture, uint8_t *ptr, enum PixelFormat pix_fmt,
|
|
int height)
|
|
{
|
|
int size, h2, size2;
|
|
const PixFmtInfo *pinfo;
|
|
|
|
pinfo = &pix_fmt_info[pix_fmt];
|
|
size = picture->linesize[0] * height;
|
|
switch(pix_fmt) {
|
|
case PIX_FMT_YUV420P:
|
|
case PIX_FMT_YUV422P:
|
|
case PIX_FMT_YUV444P:
|
|
case PIX_FMT_YUV410P:
|
|
case PIX_FMT_YUV411P:
|
|
case PIX_FMT_YUV440P:
|
|
case PIX_FMT_YUVJ420P:
|
|
case PIX_FMT_YUVJ422P:
|
|
case PIX_FMT_YUVJ444P:
|
|
case PIX_FMT_YUVJ440P:
|
|
case PIX_FMT_YUV420PLE:
|
|
case PIX_FMT_YUV422PLE:
|
|
case PIX_FMT_YUV444PLE:
|
|
case PIX_FMT_YUV420PBE:
|
|
case PIX_FMT_YUV422PBE:
|
|
case PIX_FMT_YUV444PBE:
|
|
h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
|
|
size2 = picture->linesize[1] * h2;
|
|
picture->data[0] = ptr;
|
|
picture->data[1] = picture->data[0] + size;
|
|
picture->data[2] = picture->data[1] + size2;
|
|
picture->data[3] = NULL;
|
|
return size + 2 * size2;
|
|
case PIX_FMT_YUVA420P:
|
|
h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
|
|
size2 = picture->linesize[1] * h2;
|
|
picture->data[0] = ptr;
|
|
picture->data[1] = picture->data[0] + size;
|
|
picture->data[2] = picture->data[1] + size2;
|
|
picture->data[3] = picture->data[1] + size2 + size2;
|
|
return 2 * size + 2 * size2;
|
|
case PIX_FMT_NV12:
|
|
case PIX_FMT_NV21:
|
|
h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
|
|
size2 = picture->linesize[1] * h2 * 2;
|
|
picture->data[0] = ptr;
|
|
picture->data[1] = picture->data[0] + size;
|
|
picture->data[2] = NULL;
|
|
picture->data[3] = NULL;
|
|
return size + 2 * size2;
|
|
case PIX_FMT_RGB24:
|
|
case PIX_FMT_BGR24:
|
|
case PIX_FMT_ARGB:
|
|
case PIX_FMT_ABGR:
|
|
case PIX_FMT_RGBA:
|
|
case PIX_FMT_BGRA:
|
|
case PIX_FMT_RGB48BE:
|
|
case PIX_FMT_RGB48LE:
|
|
case PIX_FMT_GRAY16BE:
|
|
case PIX_FMT_GRAY16LE:
|
|
case PIX_FMT_BGR555:
|
|
case PIX_FMT_BGR565:
|
|
case PIX_FMT_RGB555:
|
|
case PIX_FMT_RGB565:
|
|
case PIX_FMT_YUYV422:
|
|
case PIX_FMT_UYVY422:
|
|
case PIX_FMT_UYYVYY411:
|
|
case PIX_FMT_RGB4:
|
|
case PIX_FMT_BGR4:
|
|
case PIX_FMT_MONOWHITE:
|
|
case PIX_FMT_MONOBLACK:
|
|
picture->data[0] = ptr;
|
|
picture->data[1] = NULL;
|
|
picture->data[2] = NULL;
|
|
picture->data[3] = NULL;
|
|
return size;
|
|
case PIX_FMT_PAL8:
|
|
case PIX_FMT_RGB8:
|
|
case PIX_FMT_BGR8:
|
|
case PIX_FMT_RGB4_BYTE:
|
|
case PIX_FMT_BGR4_BYTE:
|
|
case PIX_FMT_GRAY8:
|
|
size2 = (size + 3) & ~3;
|
|
picture->data[0] = ptr;
|
|
picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */
|
|
picture->data[2] = NULL;
|
|
picture->data[3] = NULL;
|
|
return size2 + 256 * 4;
|
|
default:
|
|
picture->data[0] = NULL;
|
|
picture->data[1] = NULL;
|
|
picture->data[2] = NULL;
|
|
picture->data[3] = NULL;
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
|
|
enum PixelFormat pix_fmt, int width, int height)
|
|
{
|
|
|
|
if(avcodec_check_dimensions(NULL, width, height))
|
|
return -1;
|
|
|
|
if (ff_fill_linesize(picture, pix_fmt, width))
|
|
return -1;
|
|
|
|
return ff_fill_pointer(picture, ptr, pix_fmt, height);
|
|
}
|
|
|
|
int avpicture_layout(const AVPicture* src, enum PixelFormat pix_fmt, int width, int height,
|
|
unsigned char *dest, int dest_size)
|
|
{
|
|
const PixFmtInfo* pf = &pix_fmt_info[pix_fmt];
|
|
int i, j, w, ow, h, oh, data_planes;
|
|
const unsigned char* s;
|
|
int size = avpicture_get_size(pix_fmt, width, height);
|
|
|
|
if (size > dest_size || size < 0)
|
|
return -1;
|
|
|
|
if (pf->pixel_type == FF_PIXEL_PACKED || pf->pixel_type == FF_PIXEL_PALETTE) {
|
|
if (pix_fmt == PIX_FMT_YUYV422 ||
|
|
pix_fmt == PIX_FMT_UYVY422 ||
|
|
pix_fmt == PIX_FMT_BGR565 ||
|
|
pix_fmt == PIX_FMT_BGR555 ||
|
|
pix_fmt == PIX_FMT_RGB565 ||
|
|
pix_fmt == PIX_FMT_RGB555)
|
|
w = width * 2;
|
|
else if (pix_fmt == PIX_FMT_UYYVYY411)
|
|
w = width + width/2;
|
|
else if (pix_fmt == PIX_FMT_PAL8)
|
|
w = width;
|
|
else
|
|
w = width * (pf->depth * pf->nb_channels / 8);
|
|
|
|
data_planes = 1;
|
|
h = height;
|
|
} else {
|
|
data_planes = pf->nb_channels;
|
|
w = (width*pf->depth + 7)/8;
|
|
h = height;
|
|
}
|
|
|
|
ow = w;
|
|
oh = h;
|
|
|
|
for (i=0; i<data_planes; i++) {
|
|
if (i == 1) {
|
|
w = width >> pf->x_chroma_shift;
|
|
h = height >> pf->y_chroma_shift;
|
|
} else if (i == 3) {
|
|
w = ow;
|
|
h = oh;
|
|
}
|
|
s = src->data[i];
|
|
for(j=0; j<h; j++) {
|
|
memcpy(dest, s, w);
|
|
dest += w;
|
|
s += src->linesize[i];
|
|
}
|
|
}
|
|
|
|
if (pf->pixel_type == FF_PIXEL_PALETTE)
|
|
memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4);
|
|
|
|
return size;
|
|
}
|
|
|
|
int avpicture_get_size(enum PixelFormat pix_fmt, int width, int height)
|
|
{
|
|
AVPicture dummy_pict;
|
|
if(avcodec_check_dimensions(NULL, width, height))
|
|
return -1;
|
|
switch (pix_fmt) {
|
|
case PIX_FMT_RGB8:
|
|
case PIX_FMT_BGR8:
|
|
case PIX_FMT_RGB4_BYTE:
|
|
case PIX_FMT_BGR4_BYTE:
|
|
case PIX_FMT_GRAY8:
|
|
// do not include palette for these pseudo-paletted formats
|
|
return width * height;
|
|
}
|
|
return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
|
|
}
|
|
|
|
int avcodec_get_pix_fmt_loss(enum PixelFormat dst_pix_fmt, enum PixelFormat src_pix_fmt,
|
|
int has_alpha)
|
|
{
|
|
const PixFmtInfo *pf, *ps;
|
|
int loss;
|
|
|
|
ps = &pix_fmt_info[src_pix_fmt];
|
|
|
|
/* compute loss */
|
|
loss = 0;
|
|
pf = &pix_fmt_info[dst_pix_fmt];
|
|
if (pf->depth < ps->depth ||
|
|
(dst_pix_fmt == PIX_FMT_RGB555 && src_pix_fmt == PIX_FMT_RGB565))
|
|
loss |= FF_LOSS_DEPTH;
|
|
if (pf->x_chroma_shift > ps->x_chroma_shift ||
|
|
pf->y_chroma_shift > ps->y_chroma_shift)
|
|
loss |= FF_LOSS_RESOLUTION;
|
|
switch(pf->color_type) {
|
|
case FF_COLOR_RGB:
|
|
if (ps->color_type != FF_COLOR_RGB &&
|
|
ps->color_type != FF_COLOR_GRAY)
|
|
loss |= FF_LOSS_COLORSPACE;
|
|
break;
|
|
case FF_COLOR_GRAY:
|
|
if (ps->color_type != FF_COLOR_GRAY)
|
|
loss |= FF_LOSS_COLORSPACE;
|
|
break;
|
|
case FF_COLOR_YUV:
|
|
if (ps->color_type != FF_COLOR_YUV)
|
|
loss |= FF_LOSS_COLORSPACE;
|
|
break;
|
|
case FF_COLOR_YUV_JPEG:
|
|
if (ps->color_type != FF_COLOR_YUV_JPEG &&
|
|
ps->color_type != FF_COLOR_YUV &&
|
|
ps->color_type != FF_COLOR_GRAY)
|
|
loss |= FF_LOSS_COLORSPACE;
|
|
break;
|
|
default:
|
|
/* fail safe test */
|
|
if (ps->color_type != pf->color_type)
|
|
loss |= FF_LOSS_COLORSPACE;
|
|
break;
|
|
}
|
|
if (pf->color_type == FF_COLOR_GRAY &&
|
|
ps->color_type != FF_COLOR_GRAY)
|
|
loss |= FF_LOSS_CHROMA;
|
|
if (!pf->is_alpha && (ps->is_alpha && has_alpha))
|
|
loss |= FF_LOSS_ALPHA;
|
|
if (pf->pixel_type == FF_PIXEL_PALETTE &&
|
|
(ps->pixel_type != FF_PIXEL_PALETTE && ps->color_type != FF_COLOR_GRAY))
|
|
loss |= FF_LOSS_COLORQUANT;
|
|
return loss;
|
|
}
|
|
|
|
static int avg_bits_per_pixel(enum PixelFormat pix_fmt)
|
|
{
|
|
int bits;
|
|
const PixFmtInfo *pf;
|
|
|
|
pf = &pix_fmt_info[pix_fmt];
|
|
switch(pf->pixel_type) {
|
|
case FF_PIXEL_PACKED:
|
|
switch(pix_fmt) {
|
|
case PIX_FMT_YUYV422:
|
|
case PIX_FMT_UYVY422:
|
|
case PIX_FMT_RGB565:
|
|
case PIX_FMT_RGB555:
|
|
case PIX_FMT_BGR565:
|
|
case PIX_FMT_BGR555:
|
|
bits = 16;
|
|
break;
|
|
case PIX_FMT_UYYVYY411:
|
|
bits = 12;
|
|
break;
|
|
default:
|
|
bits = pf->depth * pf->nb_channels;
|
|
break;
|
|
}
|
|
break;
|
|
case FF_PIXEL_PLANAR:
|
|
if (pf->x_chroma_shift == 0 && pf->y_chroma_shift == 0) {
|
|
bits = pf->depth * pf->nb_channels;
|
|
} else {
|
|
bits = pf->depth + ((2 * pf->depth) >>
|
|
(pf->x_chroma_shift + pf->y_chroma_shift));
|
|
}
|
|
break;
|
|
case FF_PIXEL_PALETTE:
|
|
bits = 8;
|
|
break;
|
|
default:
|
|
bits = -1;
|
|
break;
|
|
}
|
|
return bits;
|
|
}
|
|
|
|
static enum PixelFormat avcodec_find_best_pix_fmt1(int64_t pix_fmt_mask,
|
|
enum PixelFormat src_pix_fmt,
|
|
int has_alpha,
|
|
int loss_mask)
|
|
{
|
|
int dist, i, loss, min_dist;
|
|
enum PixelFormat dst_pix_fmt;
|
|
|
|
/* find exact color match with smallest size */
|
|
dst_pix_fmt = -1;
|
|
min_dist = 0x7fffffff;
|
|
for(i = 0;i < PIX_FMT_NB; i++) {
|
|
if (pix_fmt_mask & (1ULL << i)) {
|
|
loss = avcodec_get_pix_fmt_loss(i, src_pix_fmt, has_alpha) & loss_mask;
|
|
if (loss == 0) {
|
|
dist = avg_bits_per_pixel(i);
|
|
if (dist < min_dist) {
|
|
min_dist = dist;
|
|
dst_pix_fmt = i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return dst_pix_fmt;
|
|
}
|
|
|
|
enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelFormat src_pix_fmt,
|
|
int has_alpha, int *loss_ptr)
|
|
{
|
|
enum PixelFormat dst_pix_fmt;
|
|
int loss_mask, i;
|
|
static const int loss_mask_order[] = {
|
|
~0, /* no loss first */
|
|
~FF_LOSS_ALPHA,
|
|
~FF_LOSS_RESOLUTION,
|
|
~(FF_LOSS_COLORSPACE | FF_LOSS_RESOLUTION),
|
|
~FF_LOSS_COLORQUANT,
|
|
~FF_LOSS_DEPTH,
|
|
0,
|
|
};
|
|
|
|
/* try with successive loss */
|
|
i = 0;
|
|
for(;;) {
|
|
loss_mask = loss_mask_order[i++];
|
|
dst_pix_fmt = avcodec_find_best_pix_fmt1(pix_fmt_mask, src_pix_fmt,
|
|
has_alpha, loss_mask);
|
|
if (dst_pix_fmt >= 0)
|
|
goto found;
|
|
if (loss_mask == 0)
|
|
break;
|
|
}
|
|
return -1;
|
|
found:
|
|
if (loss_ptr)
|
|
*loss_ptr = avcodec_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha);
|
|
return dst_pix_fmt;
|
|
}
|
|
|
|
void ff_img_copy_plane(uint8_t *dst, int dst_wrap,
|
|
const uint8_t *src, int src_wrap,
|
|
int width, int height)
|
|
{
|
|
if((!dst) || (!src))
|
|
return;
|
|
for(;height > 0; height--) {
|
|
memcpy(dst, src, width);
|
|
dst += dst_wrap;
|
|
src += src_wrap;
|
|
}
|
|
}
|
|
|
|
int ff_get_plane_bytewidth(enum PixelFormat pix_fmt, int width, int plane)
|
|
{
|
|
int bits;
|
|
const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
|
|
|
|
pf = &pix_fmt_info[pix_fmt];
|
|
switch(pf->pixel_type) {
|
|
case FF_PIXEL_PACKED:
|
|
switch(pix_fmt) {
|
|
case PIX_FMT_YUYV422:
|
|
case PIX_FMT_UYVY422:
|
|
case PIX_FMT_RGB565:
|
|
case PIX_FMT_RGB555:
|
|
case PIX_FMT_BGR565:
|
|
case PIX_FMT_BGR555:
|
|
bits = 16;
|
|
break;
|
|
case PIX_FMT_UYYVYY411:
|
|
bits = 12;
|
|
break;
|
|
default:
|
|
bits = pf->depth * pf->nb_channels;
|
|
break;
|
|
}
|
|
return (width * bits + 7) >> 3;
|
|
break;
|
|
case FF_PIXEL_PLANAR:
|
|
if (plane == 1 || plane == 2)
|
|
width= -((-width)>>pf->x_chroma_shift);
|
|
|
|
return (width * pf->depth + 7) >> 3;
|
|
break;
|
|
case FF_PIXEL_PALETTE:
|
|
if (plane == 0)
|
|
return width;
|
|
break;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
void av_picture_copy(AVPicture *dst, const AVPicture *src,
|
|
enum PixelFormat pix_fmt, int width, int height)
|
|
{
|
|
int i;
|
|
const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
|
|
|
|
switch(pf->pixel_type) {
|
|
case FF_PIXEL_PACKED:
|
|
case FF_PIXEL_PLANAR:
|
|
for(i = 0; i < pf->nb_channels; i++) {
|
|
int h;
|
|
int bwidth = ff_get_plane_bytewidth(pix_fmt, width, i);
|
|
h = height;
|
|
if (i == 1 || i == 2) {
|
|
h= -((-height)>>pf->y_chroma_shift);
|
|
}
|
|
ff_img_copy_plane(dst->data[i], dst->linesize[i],
|
|
src->data[i], src->linesize[i],
|
|
bwidth, h);
|
|
}
|
|
break;
|
|
case FF_PIXEL_PALETTE:
|
|
ff_img_copy_plane(dst->data[0], dst->linesize[0],
|
|
src->data[0], src->linesize[0],
|
|
width, height);
|
|
/* copy the palette */
|
|
ff_img_copy_plane(dst->data[1], dst->linesize[1],
|
|
src->data[1], src->linesize[1],
|
|
4, 256);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* 2x2 -> 1x1 */
|
|
void ff_shrink22(uint8_t *dst, int dst_wrap,
|
|
const uint8_t *src, int src_wrap,
|
|
int width, int height)
|
|
{
|
|
int w;
|
|
const uint8_t *s1, *s2;
|
|
uint8_t *d;
|
|
|
|
for(;height > 0; height--) {
|
|
s1 = src;
|
|
s2 = s1 + src_wrap;
|
|
d = dst;
|
|
for(w = width;w >= 4; w-=4) {
|
|
d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
|
|
d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 2;
|
|
d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 2;
|
|
d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 2;
|
|
s1 += 8;
|
|
s2 += 8;
|
|
d += 4;
|
|
}
|
|
for(;w > 0; w--) {
|
|
d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
|
|
s1 += 2;
|
|
s2 += 2;
|
|
d++;
|
|
}
|
|
src += 2 * src_wrap;
|
|
dst += dst_wrap;
|
|
}
|
|
}
|
|
|
|
/* 4x4 -> 1x1 */
|
|
void ff_shrink44(uint8_t *dst, int dst_wrap,
|
|
const uint8_t *src, int src_wrap,
|
|
int width, int height)
|
|
{
|
|
int w;
|
|
const uint8_t *s1, *s2, *s3, *s4;
|
|
uint8_t *d;
|
|
|
|
for(;height > 0; height--) {
|
|
s1 = src;
|
|
s2 = s1 + src_wrap;
|
|
s3 = s2 + src_wrap;
|
|
s4 = s3 + src_wrap;
|
|
d = dst;
|
|
for(w = width;w > 0; w--) {
|
|
d[0] = (s1[0] + s1[1] + s1[2] + s1[3] +
|
|
s2[0] + s2[1] + s2[2] + s2[3] +
|
|
s3[0] + s3[1] + s3[2] + s3[3] +
|
|
s4[0] + s4[1] + s4[2] + s4[3] + 8) >> 4;
|
|
s1 += 4;
|
|
s2 += 4;
|
|
s3 += 4;
|
|
s4 += 4;
|
|
d++;
|
|
}
|
|
src += 4 * src_wrap;
|
|
dst += dst_wrap;
|
|
}
|
|
}
|
|
|
|
/* 8x8 -> 1x1 */
|
|
void ff_shrink88(uint8_t *dst, int dst_wrap,
|
|
const uint8_t *src, int src_wrap,
|
|
int width, int height)
|
|
{
|
|
int w, i;
|
|
|
|
for(;height > 0; height--) {
|
|
for(w = width;w > 0; w--) {
|
|
int tmp=0;
|
|
for(i=0; i<8; i++){
|
|
tmp += src[0] + src[1] + src[2] + src[3] + src[4] + src[5] + src[6] + src[7];
|
|
src += src_wrap;
|
|
}
|
|
*(dst++) = (tmp + 32)>>6;
|
|
src += 8 - 8*src_wrap;
|
|
}
|
|
src += 8*src_wrap - 8*width;
|
|
dst += dst_wrap - width;
|
|
}
|
|
}
|
|
|
|
|
|
int avpicture_alloc(AVPicture *picture,
|
|
enum PixelFormat pix_fmt, int width, int height)
|
|
{
|
|
int size;
|
|
void *ptr;
|
|
|
|
size = avpicture_fill(picture, NULL, pix_fmt, width, height);
|
|
if(size<0)
|
|
goto fail;
|
|
ptr = av_malloc(size);
|
|
if (!ptr)
|
|
goto fail;
|
|
avpicture_fill(picture, ptr, pix_fmt, width, height);
|
|
if(picture->data[1] && !picture->data[2])
|
|
ff_set_systematic_pal((uint32_t*)picture->data[1], pix_fmt);
|
|
|
|
return 0;
|
|
fail:
|
|
memset(picture, 0, sizeof(AVPicture));
|
|
return -1;
|
|
}
|
|
|
|
void avpicture_free(AVPicture *picture)
|
|
{
|
|
av_free(picture->data[0]);
|
|
}
|
|
|
|
/* return true if yuv planar */
|
|
static inline int is_yuv_planar(const PixFmtInfo *ps)
|
|
{
|
|
return (ps->color_type == FF_COLOR_YUV ||
|
|
ps->color_type == FF_COLOR_YUV_JPEG) &&
|
|
ps->pixel_type == FF_PIXEL_PLANAR;
|
|
}
|
|
|
|
int av_picture_crop(AVPicture *dst, const AVPicture *src,
|
|
enum PixelFormat pix_fmt, int top_band, int left_band)
|
|
{
|
|
int y_shift;
|
|
int x_shift;
|
|
|
|
if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB || !is_yuv_planar(&pix_fmt_info[pix_fmt]))
|
|
return -1;
|
|
|
|
y_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
|
|
x_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
|
|
|
|
dst->data[0] = src->data[0] + (top_band * src->linesize[0]) + left_band;
|
|
dst->data[1] = src->data[1] + ((top_band >> y_shift) * src->linesize[1]) + (left_band >> x_shift);
|
|
dst->data[2] = src->data[2] + ((top_band >> y_shift) * src->linesize[2]) + (left_band >> x_shift);
|
|
|
|
dst->linesize[0] = src->linesize[0];
|
|
dst->linesize[1] = src->linesize[1];
|
|
dst->linesize[2] = src->linesize[2];
|
|
return 0;
|
|
}
|
|
|
|
int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width,
|
|
enum PixelFormat pix_fmt, int padtop, int padbottom, int padleft, int padright,
|
|
int *color)
|
|
{
|
|
uint8_t *optr;
|
|
int y_shift;
|
|
int x_shift;
|
|
int yheight;
|
|
int i, y;
|
|
|
|
if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB ||
|
|
!is_yuv_planar(&pix_fmt_info[pix_fmt])) return -1;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
x_shift = i ? pix_fmt_info[pix_fmt].x_chroma_shift : 0;
|
|
y_shift = i ? pix_fmt_info[pix_fmt].y_chroma_shift : 0;
|
|
|
|
if (padtop || padleft) {
|
|
memset(dst->data[i], color[i],
|
|
dst->linesize[i] * (padtop >> y_shift) + (padleft >> x_shift));
|
|
}
|
|
|
|
if (padleft || padright) {
|
|
optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
|
|
(dst->linesize[i] - (padright >> x_shift));
|
|
yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
|
|
for (y = 0; y < yheight; y++) {
|
|
memset(optr, color[i], (padleft + padright) >> x_shift);
|
|
optr += dst->linesize[i];
|
|
}
|
|
}
|
|
|
|
if (src) { /* first line */
|
|
uint8_t *iptr = src->data[i];
|
|
optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
|
|
(padleft >> x_shift);
|
|
memcpy(optr, iptr, (width - padleft - padright) >> x_shift);
|
|
iptr += src->linesize[i];
|
|
optr = dst->data[i] + dst->linesize[i] * (padtop >> y_shift) +
|
|
(dst->linesize[i] - (padright >> x_shift));
|
|
yheight = (height - 1 - (padtop + padbottom)) >> y_shift;
|
|
for (y = 0; y < yheight; y++) {
|
|
memset(optr, color[i], (padleft + padright) >> x_shift);
|
|
memcpy(optr + ((padleft + padright) >> x_shift), iptr,
|
|
(width - padleft - padright) >> x_shift);
|
|
iptr += src->linesize[i];
|
|
optr += dst->linesize[i];
|
|
}
|
|
}
|
|
|
|
if (padbottom || padright) {
|
|
optr = dst->data[i] + dst->linesize[i] *
|
|
((height - padbottom) >> y_shift) - (padright >> x_shift);
|
|
memset(optr, color[i],dst->linesize[i] *
|
|
(padbottom >> y_shift) + (padright >> x_shift));
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* NOTE: we scan all the pixels to have an exact information */
|
|
static int get_alpha_info_pal8(const AVPicture *src, int width, int height)
|
|
{
|
|
const unsigned char *p;
|
|
int src_wrap, ret, x, y;
|
|
unsigned int a;
|
|
uint32_t *palette = (uint32_t *)src->data[1];
|
|
|
|
p = src->data[0];
|
|
src_wrap = src->linesize[0] - width;
|
|
ret = 0;
|
|
for(y=0;y<height;y++) {
|
|
for(x=0;x<width;x++) {
|
|
a = palette[p[0]] >> 24;
|
|
if (a == 0x00) {
|
|
ret |= FF_ALPHA_TRANSP;
|
|
} else if (a != 0xff) {
|
|
ret |= FF_ALPHA_SEMI_TRANSP;
|
|
}
|
|
p++;
|
|
}
|
|
p += src_wrap;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int img_get_alpha_info(const AVPicture *src,
|
|
enum PixelFormat pix_fmt, int width, int height)
|
|
{
|
|
const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
|
|
int ret;
|
|
|
|
/* no alpha can be represented in format */
|
|
if (!pf->is_alpha)
|
|
return 0;
|
|
switch(pix_fmt) {
|
|
case PIX_FMT_PAL8:
|
|
ret = get_alpha_info_pal8(src, width, height);
|
|
break;
|
|
default:
|
|
/* we do not know, so everything is indicated */
|
|
ret = FF_ALPHA_TRANSP | FF_ALPHA_SEMI_TRANSP;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#if HAVE_MMX
|
|
#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,
|
|
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)
|
|
{
|
|
#if !HAVE_MMX
|
|
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
|
|
int sum;
|
|
|
|
for(;size > 0;size--) {
|
|
sum = -lum_m4[0];
|
|
sum += lum_m3[0] << 2;
|
|
sum += lum_m2[0] << 1;
|
|
sum += lum_m1[0] << 2;
|
|
sum += -lum[0];
|
|
dst[0] = cm[(sum + 4) >> 3];
|
|
lum_m4++;
|
|
lum_m3++;
|
|
lum_m2++;
|
|
lum_m1++;
|
|
lum++;
|
|
dst++;
|
|
}
|
|
#else
|
|
|
|
{
|
|
pxor_r2r(mm7,mm7);
|
|
movq_m2r(ff_pw_4,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)
|
|
{
|
|
#if !HAVE_MMX
|
|
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
|
|
int sum;
|
|
|
|
for(;size > 0;size--) {
|
|
sum = -lum_m4[0];
|
|
sum += lum_m3[0] << 2;
|
|
sum += lum_m2[0] << 1;
|
|
lum_m4[0]=lum_m2[0];
|
|
sum += lum_m1[0] << 2;
|
|
sum += -lum[0];
|
|
lum_m2[0] = cm[(sum + 4) >> 3];
|
|
lum_m4++;
|
|
lum_m3++;
|
|
lum_m2++;
|
|
lum_m1++;
|
|
lum++;
|
|
}
|
|
#else
|
|
|
|
{
|
|
pxor_r2r(mm7,mm7);
|
|
movq_m2r(ff_pw_4,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,
|
|
const uint8_t *src1, int src_wrap,
|
|
int width, int height)
|
|
{
|
|
const uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
|
|
int y;
|
|
|
|
src_m2 = src1;
|
|
src_m1 = src1;
|
|
src_0=&src_m1[src_wrap];
|
|
src_p1=&src_0[src_wrap];
|
|
src_p2=&src_p1[src_wrap];
|
|
for(y=0;y<(height-2);y+=2) {
|
|
memcpy(dst,src_m1,width);
|
|
dst += dst_wrap;
|
|
deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width);
|
|
src_m2 = src_0;
|
|
src_m1 = src_p1;
|
|
src_0 = src_p2;
|
|
src_p1 += 2*src_wrap;
|
|
src_p2 += 2*src_wrap;
|
|
dst += dst_wrap;
|
|
}
|
|
memcpy(dst,src_m1,width);
|
|
dst += dst_wrap;
|
|
/* do last line */
|
|
deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width);
|
|
}
|
|
|
|
static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap,
|
|
int width, int height)
|
|
{
|
|
uint8_t *src_m1, *src_0, *src_p1, *src_p2;
|
|
int y;
|
|
uint8_t *buf;
|
|
buf = (uint8_t*)av_malloc(width);
|
|
|
|
src_m1 = src1;
|
|
memcpy(buf,src_m1,width);
|
|
src_0=&src_m1[src_wrap];
|
|
src_p1=&src_0[src_wrap];
|
|
src_p2=&src_p1[src_wrap];
|
|
for(y=0;y<(height-2);y+=2) {
|
|
deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width);
|
|
src_m1 = src_p1;
|
|
src_0 = src_p2;
|
|
src_p1 += 2*src_wrap;
|
|
src_p2 += 2*src_wrap;
|
|
}
|
|
/* do last line */
|
|
deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width);
|
|
av_free(buf);
|
|
}
|
|
|
|
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
|
|
enum PixelFormat pix_fmt, int width, int height)
|
|
{
|
|
int i;
|
|
|
|
if (pix_fmt != PIX_FMT_YUV420P &&
|
|
pix_fmt != PIX_FMT_YUV422P &&
|
|
pix_fmt != PIX_FMT_YUV444P &&
|
|
pix_fmt != PIX_FMT_YUV411P &&
|
|
pix_fmt != PIX_FMT_GRAY8)
|
|
return -1;
|
|
if ((width & 3) != 0 || (height & 3) != 0)
|
|
return -1;
|
|
|
|
for(i=0;i<3;i++) {
|
|
if (i == 1) {
|
|
switch(pix_fmt) {
|
|
case PIX_FMT_YUV420P:
|
|
width >>= 1;
|
|
height >>= 1;
|
|
break;
|
|
case PIX_FMT_YUV422P:
|
|
width >>= 1;
|
|
break;
|
|
case PIX_FMT_YUV411P:
|
|
width >>= 2;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (pix_fmt == PIX_FMT_GRAY8) {
|
|
break;
|
|
}
|
|
}
|
|
if (src == dst) {
|
|
deinterlace_bottom_field_inplace(dst->data[i], dst->linesize[i],
|
|
width, height);
|
|
} else {
|
|
deinterlace_bottom_field(dst->data[i],dst->linesize[i],
|
|
src->data[i], src->linesize[i],
|
|
width, height);
|
|
}
|
|
}
|
|
emms_c();
|
|
return 0;
|
|
}
|
|
|