imgconvert.c
上传用户:jylinhe
上传日期:2022-07-11
资源大小:334k
文件大小:80k
- /*
- * Misc image conversion routines
- * Copyright (c) 2001, 2002, 2003 Fabrice Bellard.
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- /**
- * @file imgconvert.c
- * misc image conversion routines
- */
- /* TODO:
- * - write 'ffimg' program to test all the image related stuff
- * - move all api to slice based system
- * - integrate deinterlacing, postprocessing and scaling in the conversion process
- */
- #include "dsputil.h"
- //#include "internal.h"
- //#include "integer.h"
- #include "colorspace.h"
- #ifdef HAVE_MMX
- #include "x86/mmx.h"
- #include "x86/dsputil_mmx.h"
- #endif
- #define xglue(x, y) x ## y
- #define glue(x, y) xglue(x, y)
- #define FF_COLOR_RGB 0 /**< RGB color space */
- #define FF_COLOR_GRAY 1 /**< gray color space */
- #define FF_COLOR_YUV 2 /**< YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */
- #define FF_COLOR_YUV_JPEG 3 /**< YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */
- #define FF_PIXEL_PLANAR 0 /**< each channel has one component in AVPicture */
- #define FF_PIXEL_PACKED 1 /**< only one components containing all the channels */
- #define FF_PIXEL_PALETTE 2 /**< one components containing indexes for a palette */
- typedef struct PixFmtInfo {
- const char *name;
- uint8_t nb_channels; /**< number of channels (including alpha) */
- uint8_t color_type; /**< color type (see FF_COLOR_xxx constants) */
- uint8_t pixel_type; /**< pixel storage type (see FF_PIXEL_xxx constants) */
- uint8_t is_alpha : 1; /**< true if alpha can be specified */
- uint8_t x_chroma_shift; /**< X chroma subsampling factor is 2 ^ shift */
- uint8_t y_chroma_shift; /**< Y chroma subsampling factor is 2 ^ shift */
- uint8_t depth; /**< bit depth of the color components */
- } PixFmtInfo;
- /* this table gives more information about formats */
- static const PixFmtInfo pix_fmt_info[PIX_FMT_NB];
- /*
- = {
- [PIX_FMT_YUV420P] = {
- .name = "yuv420p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_YUV422P] = {
- .name = "yuv422p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUV444P] = {
- .name = "yuv444p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUYV422] = {
- .name = "yuyv422",
- .nb_channels = 1,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_UYVY422] = {
- .name = "uyvy422",
- .nb_channels = 1,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUV410P] = {
- .name = "yuv410p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 2, .y_chroma_shift = 2,
- },
- [PIX_FMT_YUV411P] = {
- .name = "yuv411p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 2, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUV440P] = {
- .name = "yuv440p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 1,
- },
-
- [PIX_FMT_YUVA420P] = {
- .name = "yuva420p",
- .nb_channels = 4,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
-
- [PIX_FMT_YUVJ420P] = {
- .name = "yuvj420p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV_JPEG,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 1,
- },
- [PIX_FMT_YUVJ422P] = {
- .name = "yuvj422p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV_JPEG,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 1, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUVJ444P] = {
- .name = "yuvj444p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV_JPEG,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_YUVJ440P] = {
- .name = "yuvj440p",
- .nb_channels = 3,
- .color_type = FF_COLOR_YUV_JPEG,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 1,
- },
-
- [PIX_FMT_RGB24] = {
- .name = "rgb24",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR24] = {
- .name = "bgr24",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB32] = {
- .name = "rgb32",
- .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_RGB565] = {
- .name = "rgb565",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB555] = {
- .name = "rgb555",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
-
- [PIX_FMT_GRAY16BE] = {
- .name = "gray16be",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- },
- [PIX_FMT_GRAY16LE] = {
- .name = "gray16le",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 16,
- },
- [PIX_FMT_GRAY8] = {
- .name = "gray",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 8,
- },
- [PIX_FMT_MONOWHITE] = {
- .name = "monow",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 1,
- },
- [PIX_FMT_MONOBLACK] = {
- .name = "monob",
- .nb_channels = 1,
- .color_type = FF_COLOR_GRAY,
- .pixel_type = FF_PIXEL_PLANAR,
- .depth = 1,
- },
-
- [PIX_FMT_PAL8] = {
- .name = "pal8",
- .nb_channels = 4, .is_alpha = 1,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PALETTE,
- .depth = 8,
- },
- [PIX_FMT_XVMC_MPEG2_MC] = {
- .name = "xvmcmc",
- },
- [PIX_FMT_XVMC_MPEG2_IDCT] = {
- .name = "xvmcidct",
- },
- [PIX_FMT_VDPAU_H264] = {
- .name = "vdpau_h264",
- },
- [PIX_FMT_UYYVYY411] = {
- .name = "uyyvyy411",
- .nb_channels = 1,
- .color_type = FF_COLOR_YUV,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 8,
- .x_chroma_shift = 2, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR32] = {
- .name = "bgr32",
- .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_BGR565] = {
- .name = "bgr565",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_BGR555] = {
- .name = "bgr555",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 5,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB8] = {
- .name = "rgb8",
- .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_RGB4] = {
- .name = "rgb4",
- .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_RGB4_BYTE] = {
- .name = "rgb4_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_BGR8] = {
- .name = "bgr8",
- .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_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_BGR32_1] = {
- .name = "bgr32_1",
- .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_RGB32_1] = {
- .name = "rgb32_1",
- .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,
- },
- };*/
- void avcodec_get_chroma_sub_sample(int 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(int pix_fmt)
- {
- if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB)
- return NULL;
- else
- return pix_fmt_info[pix_fmt].name;
- }
- enum PixelFormat avcodec_get_pix_fmt(const char* name)
- {
- int i;
- for (i=0; i < PIX_FMT_NB; i++)
- if (!strcmp(pix_fmt_info[i].name, name))
- return (enum PixelFormat)i;
- return PIX_FMT_NONE;
- }
- void avcodec_pix_fmt_string (char *buf, int buf_size, int 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_fill_linesize(AVPicture *picture, int 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_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_RGB32:
- case PIX_FMT_BGR32:
- case PIX_FMT_RGB32_1:
- case PIX_FMT_BGR32_1:
- picture->linesize[0] = width * 4;
- 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_RGB8:
- case PIX_FMT_BGR8:
- case PIX_FMT_RGB4_BYTE:
- case PIX_FMT_BGR4_BYTE:
- case PIX_FMT_GRAY8:
- picture->linesize[0] = width;
- 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:
- picture->linesize[0] = width;
- picture->linesize[1] = 4;
- break;
- default:
- return -1;
- }
- return 0;
- }
- int ff_fill_pointer(AVPicture *picture, uint8_t *ptr, int 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:
- 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_RGB32:
- case PIX_FMT_BGR32:
- case PIX_FMT_RGB32_1:
- case PIX_FMT_BGR32_1:
- 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_RGB8:
- case PIX_FMT_BGR8:
- case PIX_FMT_RGB4_BYTE:
- case PIX_FMT_BGR4_BYTE:
- case PIX_FMT_GRAY8:
- 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:
- 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,
- int 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, int pix_fmt, int width, int height,
- unsigned char *dest, int dest_size)
- {
- const PixFmtInfo* pf = &pix_fmt_info[pix_fmt];
- int i, j, w, h, 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;
- }
- for (i=0; i<data_planes; i++) {
- if (i == 1) {
- w = width >> pf->x_chroma_shift;
- h = height >> pf->y_chroma_shift;
- }
- 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(int pix_fmt, int width, int height)
- {
- AVPicture dummy_pict;
- return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
- }
- int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
- int has_alpha)
- {
- const PixFmtInfo *pf, *ps;
- int loss;
- ps = &pix_fmt_info[src_pix_fmt];
- pf = &pix_fmt_info[dst_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(int 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 int avcodec_find_best_pix_fmt1(int64_t pix_fmt_mask,
- int src_pix_fmt,
- int has_alpha,
- int loss_mask)
- {
- int dist, i, loss, min_dist, 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;
- }
- int avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, int src_pix_fmt,
- int has_alpha, int *loss_ptr)
- {
- int dst_pix_fmt, 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,
- int pix_fmt, int width, int height)
- {
- int i;
- const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
- 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((enum PixelFormat)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;
- }
- }
- /*
- static void yuyv422_to_yuv420p(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- const uint8_t *p, *p1;
- uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
- int w;
- p1 = src->data[0];
- lum1 = dst->data[0];
- cb1 = dst->data[1];
- cr1 = dst->data[2];
- for(;height >= 1; height -= 2) {
- p = p1;
- lum = lum1;
- cb = cb1;
- cr = cr1;
- for(w = width; w >= 2; w -= 2) {
- lum[0] = p[0];
- cb[0] = p[1];
- lum[1] = p[2];
- cr[0] = p[3];
- p += 4;
- lum += 2;
- cb++;
- cr++;
- }
- if (w) {
- lum[0] = p[0];
- cb[0] = p[1];
- cr[0] = p[3];
- cb++;
- cr++;
- }
- p1 += src->linesize[0];
- lum1 += dst->linesize[0];
- if (height>1) {
- p = p1;
- lum = lum1;
- for(w = width; w >= 2; w -= 2) {
- lum[0] = p[0];
- lum[1] = p[2];
- p += 4;
- lum += 2;
- }
- if (w) {
- lum[0] = p[0];
- }
- p1 += src->linesize[0];
- lum1 += dst->linesize[0];
- }
- cb1 += dst->linesize[1];
- cr1 += dst->linesize[2];
- }
- }
- static void uyvy422_to_yuv420p(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- const uint8_t *p, *p1;
- uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
- int w;
- p1 = src->data[0];
- lum1 = dst->data[0];
- cb1 = dst->data[1];
- cr1 = dst->data[2];
- for(;height >= 1; height -= 2) {
- p = p1;
- lum = lum1;
- cb = cb1;
- cr = cr1;
- for(w = width; w >= 2; w -= 2) {
- lum[0] = p[1];
- cb[0] = p[0];
- lum[1] = p[3];
- cr[0] = p[2];
- p += 4;
- lum += 2;
- cb++;
- cr++;
- }
- if (w) {
- lum[0] = p[1];
- cb[0] = p[0];
- cr[0] = p[2];
- cb++;
- cr++;
- }
- p1 += src->linesize[0];
- lum1 += dst->linesize[0];
- if (height>1) {
- p = p1;
- lum = lum1;
- for(w = width; w >= 2; w -= 2) {
- lum[0] = p[1];
- lum[1] = p[3];
- p += 4;
- lum += 2;
- }
- if (w) {
- lum[0] = p[1];
- }
- p1 += src->linesize[0];
- lum1 += dst->linesize[0];
- }
- cb1 += dst->linesize[1];
- cr1 += dst->linesize[2];
- }
- }
- static void uyvy422_to_yuv422p(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- const uint8_t *p, *p1;
- uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
- int w;
- p1 = src->data[0];
- lum1 = dst->data[0];
- cb1 = dst->data[1];
- cr1 = dst->data[2];
- for(;height > 0; height--) {
- p = p1;
- lum = lum1;
- cb = cb1;
- cr = cr1;
- for(w = width; w >= 2; w -= 2) {
- lum[0] = p[1];
- cb[0] = p[0];
- lum[1] = p[3];
- cr[0] = p[2];
- p += 4;
- lum += 2;
- cb++;
- cr++;
- }
- p1 += src->linesize[0];
- lum1 += dst->linesize[0];
- cb1 += dst->linesize[1];
- cr1 += dst->linesize[2];
- }
- }
- static void yuyv422_to_yuv422p(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- const uint8_t *p, *p1;
- uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
- int w;
- p1 = src->data[0];
- lum1 = dst->data[0];
- cb1 = dst->data[1];
- cr1 = dst->data[2];
- for(;height > 0; height--) {
- p = p1;
- lum = lum1;
- cb = cb1;
- cr = cr1;
- for(w = width; w >= 2; w -= 2) {
- lum[0] = p[0];
- cb[0] = p[1];
- lum[1] = p[2];
- cr[0] = p[3];
- p += 4;
- lum += 2;
- cb++;
- cr++;
- }
- p1 += src->linesize[0];
- lum1 += dst->linesize[0];
- cb1 += dst->linesize[1];
- cr1 += dst->linesize[2];
- }
- }
- static void yuv422p_to_yuyv422(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- uint8_t *p, *p1;
- const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
- int w;
- p1 = dst->data[0];
- lum1 = src->data[0];
- cb1 = src->data[1];
- cr1 = src->data[2];
- for(;height > 0; height--) {
- p = p1;
- lum = lum1;
- cb = cb1;
- cr = cr1;
- for(w = width; w >= 2; w -= 2) {
- p[0] = lum[0];
- p[1] = cb[0];
- p[2] = lum[1];
- p[3] = cr[0];
- p += 4;
- lum += 2;
- cb++;
- cr++;
- }
- p1 += dst->linesize[0];
- lum1 += src->linesize[0];
- cb1 += src->linesize[1];
- cr1 += src->linesize[2];
- }
- }
- static void yuv422p_to_uyvy422(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- uint8_t *p, *p1;
- const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
- int w;
- p1 = dst->data[0];
- lum1 = src->data[0];
- cb1 = src->data[1];
- cr1 = src->data[2];
- for(;height > 0; height--) {
- p = p1;
- lum = lum1;
- cb = cb1;
- cr = cr1;
- for(w = width; w >= 2; w -= 2) {
- p[1] = lum[0];
- p[0] = cb[0];
- p[3] = lum[1];
- p[2] = cr[0];
- p += 4;
- lum += 2;
- cb++;
- cr++;
- }
- p1 += dst->linesize[0];
- lum1 += src->linesize[0];
- cb1 += src->linesize[1];
- cr1 += src->linesize[2];
- }
- }
- static void uyyvyy411_to_yuv411p(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- const uint8_t *p, *p1;
- uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
- int w;
- p1 = src->data[0];
- lum1 = dst->data[0];
- cb1 = dst->data[1];
- cr1 = dst->data[2];
- for(;height > 0; height--) {
- p = p1;
- lum = lum1;
- cb = cb1;
- cr = cr1;
- for(w = width; w >= 4; w -= 4) {
- cb[0] = p[0];
- lum[0] = p[1];
- lum[1] = p[2];
- cr[0] = p[3];
- lum[2] = p[4];
- lum[3] = p[5];
- p += 6;
- lum += 4;
- cb++;
- cr++;
- }
- p1 += src->linesize[0];
- lum1 += dst->linesize[0];
- cb1 += dst->linesize[1];
- cr1 += dst->linesize[2];
- }
- }
- static void yuv420p_to_yuyv422(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- int w, h;
- uint8_t *line1, *line2, *linesrc = dst->data[0];
- uint8_t *lum1, *lum2, *lumsrc = src->data[0];
- uint8_t *cb1, *cb2 = src->data[1];
- uint8_t *cr1, *cr2 = src->data[2];
- for(h = height / 2; h--;) {
- line1 = linesrc;
- line2 = linesrc + dst->linesize[0];
- lum1 = lumsrc;
- lum2 = lumsrc + src->linesize[0];
- cb1 = cb2;
- cr1 = cr2;
- for(w = width / 2; w--;) {
- *line1++ = *lum1++; *line2++ = *lum2++;
- *line1++ = *line2++ = *cb1++;
- *line1++ = *lum1++; *line2++ = *lum2++;
- *line1++ = *line2++ = *cr1++;
- }
- linesrc += dst->linesize[0] * 2;
- lumsrc += src->linesize[0] * 2;
- cb2 += src->linesize[1];
- cr2 += src->linesize[2];
- }
- }
- static void yuv420p_to_uyvy422(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- int w, h;
- uint8_t *line1, *line2, *linesrc = dst->data[0];
- uint8_t *lum1, *lum2, *lumsrc = src->data[0];
- uint8_t *cb1, *cb2 = src->data[1];
- uint8_t *cr1, *cr2 = src->data[2];
- for(h = height / 2; h--;) {
- line1 = linesrc;
- line2 = linesrc + dst->linesize[0];
- lum1 = lumsrc;
- lum2 = lumsrc + src->linesize[0];
- cb1 = cb2;
- cr1 = cr2;
- for(w = width / 2; w--;) {
- *line1++ = *line2++ = *cb1++;
- *line1++ = *lum1++; *line2++ = *lum2++;
- *line1++ = *line2++ = *cr1++;
- *line1++ = *lum1++; *line2++ = *lum2++;
- }
- linesrc += dst->linesize[0] * 2;
- lumsrc += src->linesize[0] * 2;
- cb2 += src->linesize[1];
- cr2 += src->linesize[2];
- }
- }
- */
- /* 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;
- }
- }
- /* XXX: add jpeg quantize code */
- #define TRANSP_INDEX (6*6*6)
- /* 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);
- }
- static void build_rgb_palette(uint8_t *palette, int has_alpha)
- {
- uint32_t *pal;
- static const uint8_t pal_value[6] = { 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff };
- int i, r, g, b;
- pal = (uint32_t *)palette;
- 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];
- }
- }
- }
- if (has_alpha)
- pal[i++] = 0;
- while (i < 256)
- pal[i++] = 0xff000000;
- }
- static inline unsigned int bitcopy_n(unsigned int a, int n)
- {
- int mask,ret;
- mask = (1 << n) - 1;
- //return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask);
- ret = a;
- return (a & (0xff & ~mask)) | ((-((ret >> n) & 1)) & mask);
- }
- */
- /*
- #define RGB_NAME rgb555
- #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);
- }
- #define BPP 2
- //#include "imgconvert_template.c"
- #define RGB_NAME rgb565
- #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
- //#include "imgconvert_template.c"
- #define RGB_NAME bgr24
- #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
- //#include "imgconvert_template.c"
- #undef RGB_IN
- #undef RGB_OUT
- #undef BPP
- #define RGB_NAME rgb24
- #define FMT_RGB24
- #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
- //#include "imgconvert_template.c"
- #define RGB_NAME rgb32
- #define FMT_RGB32
- #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 RGBA_IN(r, g, b, a, s)
- {
- unsigned int v = ((const uint32_t *)(s))[0];
- a = (v >> 24) & 0xff;
- r = (v >> 16) & 0xff;
- g = (v >> 8) & 0xff;
- b = v & 0xff;
- }
- #define RGBA_OUT(d, r, g, b, a)
- {
- ((uint32_t *)(d))[0] = (a << 24) | (r << 16) | (g << 8) | b;
- }
- #define BPP 4
- //#include "imgconvert_template.c"
- */
- /*static void mono_to_gray(AVPicture *dst, const 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, const AVPicture *src,
- int width, int height)
- {
- mono_to_gray(dst, src, width, height, 0xff);
- }
- static void monoblack_to_gray(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- mono_to_gray(dst, src, width, height, 0x00);
- }
- static void gray_to_mono(AVPicture *dst, const 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, const AVPicture *src,
- int width, int height)
- {
- gray_to_mono(dst, src, width, height, 0xff);
- }
- static void gray_to_monoblack(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- gray_to_mono(dst, src, width, height, 0x00);
- }
- static void gray_to_gray16(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- int x, y, src_wrap, dst_wrap;
- uint8_t *s, *d;
- s = src->data[0];
- src_wrap = src->linesize[0] - width;
- d = dst->data[0];
- dst_wrap = dst->linesize[0] - width * 2;
- for(y=0; y<height; y++){
- for(x=0; x<width; x++){
- *d++ = *s;
- *d++ = *s++;
- }
- s += src_wrap;
- d += dst_wrap;
- }
- }
- static void gray16_to_gray(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- int x, y, src_wrap, dst_wrap;
- uint8_t *s, *d;
- s = src->data[0];
- src_wrap = src->linesize[0] - width * 2;
- d = dst->data[0];
- dst_wrap = dst->linesize[0] - width;
- for(y=0; y<height; y++){
- for(x=0; x<width; x++){
- *d++ = *s;
- s += 2;
- }
- s += src_wrap;
- d += dst_wrap;
- }
- }
- static void gray16be_to_gray(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- gray16_to_gray(dst, src, width, height);
- }
- static void gray16le_to_gray(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- AVPicture tmpsrc = *src;
- tmpsrc.data[0]++;
- gray16_to_gray(dst, &tmpsrc, width, height);
- }
- static void gray16_to_gray16(AVPicture *dst, const AVPicture *src,
- int width, int height)
- {
- int x, y, src_wrap, dst_wrap;
- uint16_t *s, *d;
- s = (uint16_t*)src->data[0];
- src_wrap = (src->linesize[0] - width * 2)/2;
- d = (uint16_t*)dst->data[0];
- dst_wrap = (dst->linesize[0] - width * 2)/2;
- for(y=0; y<height; y++){
- for(x=0; x<width; x++){
- *d++ = bswap_16(*s++);
- }
- s += src_wrap;
- d += dst_wrap;
- }
- }*/
- typedef struct ConvertEntry {
- void (*convert)(AVPicture *dst,
- const AVPicture *src, int width, int height);
- } ConvertEntry;
- /* Add each new conversion function in this table. In order to be able
- to convert from any format to any format, the following constraints
- must be satisfied:
- - all FF_COLOR_RGB formats must convert to and from PIX_FMT_RGB24
- - all FF_COLOR_GRAY formats must convert to and from PIX_FMT_GRAY8
- - all FF_COLOR_RGB formats with alpha must convert to and from PIX_FMT_RGB32
- - PIX_FMT_YUV444P and PIX_FMT_YUVJ444P must convert to and from
- PIX_FMT_RGB24.
- - PIX_FMT_422 must convert to and from PIX_FMT_422P.
- The other conversion functions are just optimizations for common cases.
- */
- static const ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB];
- /*= {
- [PIX_FMT_YUV420P] = {
- [PIX_FMT_YUYV422] = {
- .convert = yuv420p_to_yuyv422,
- },
- [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_RGB32] = {
- .convert = yuv420p_to_rgb32
- },
- [PIX_FMT_UYVY422] = {
- .convert = yuv420p_to_uyvy422,
- },
- },
- [PIX_FMT_YUV422P] = {
- [PIX_FMT_YUYV422] = {
- .convert = yuv422p_to_yuyv422,
- },
- [PIX_FMT_UYVY422] = {
- .convert = yuv422p_to_uyvy422,
- },
- },
- [PIX_FMT_YUV444P] = {
- [PIX_FMT_RGB24] = {
- .convert = yuv444p_to_rgb24
- },
- },
- [PIX_FMT_YUVJ420P] = {
- [PIX_FMT_RGB555] = {
- .convert = yuvj420p_to_rgb555
- },
- [PIX_FMT_RGB565] = {
- .convert = yuvj420p_to_rgb565
- },
- [PIX_FMT_BGR24] = {
- .convert = yuvj420p_to_bgr24
- },
- [PIX_FMT_RGB24] = {
- .convert = yuvj420p_to_rgb24
- },
- [PIX_FMT_RGB32] = {
- .convert = yuvj420p_to_rgb32
- },
- },
- [PIX_FMT_YUVJ444P] = {
- [PIX_FMT_RGB24] = {
- .convert = yuvj444p_to_rgb24
- },
- },
- [PIX_FMT_YUYV422] = {
- [PIX_FMT_YUV420P] = {
- .convert = yuyv422_to_yuv420p,
- },
- [PIX_FMT_YUV422P] = {
- .convert = yuyv422_to_yuv422p,
- },
- },
- [PIX_FMT_UYVY422] = {
- [PIX_FMT_YUV420P] = {
- .convert = uyvy422_to_yuv420p,
- },
- [PIX_FMT_YUV422P] = {
- .convert = uyvy422_to_yuv422p,
- },
- },
- [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_RGB32] = {
- .convert = rgb24_to_rgb32
- },
- [PIX_FMT_BGR24] = {
- .convert = rgb24_to_bgr24
- },
- [PIX_FMT_GRAY8] = {
- .convert = rgb24_to_gray
- },
- [PIX_FMT_PAL8] = {
- .convert = rgb24_to_pal8
- },
- [PIX_FMT_YUV444P] = {
- .convert = rgb24_to_yuv444p
- },
- [PIX_FMT_YUVJ420P] = {
- .convert = rgb24_to_yuvj420p
- },
- [PIX_FMT_YUVJ444P] = {
- .convert = rgb24_to_yuvj444p
- },
- },
- [PIX_FMT_RGB32] = {
- [PIX_FMT_RGB24] = {
- .convert = rgb32_to_rgb24
- },
- [PIX_FMT_BGR24] = {
- .convert = rgb32_to_bgr24
- },
- [PIX_FMT_RGB565] = {
- .convert = rgb32_to_rgb565
- },
- [PIX_FMT_RGB555] = {
- .convert = rgb32_to_rgb555
- },
- [PIX_FMT_PAL8] = {
- .convert = rgb32_to_pal8
- },
- [PIX_FMT_YUV420P] = {
- .convert = rgb32_to_yuv420p
- },
- [PIX_FMT_GRAY8] = {
- .convert = rgb32_to_gray
- },
- },
- [PIX_FMT_BGR24] = {
- [PIX_FMT_RGB32] = {
- .convert = bgr24_to_rgb32
- },
- [PIX_FMT_RGB24] = {
- .convert = bgr24_to_rgb24
- },
- [PIX_FMT_YUV420P] = {
- .convert = bgr24_to_yuv420p
- },
- [PIX_FMT_GRAY8] = {
- .convert = bgr24_to_gray
- },
- },
- [PIX_FMT_RGB555] = {
- [PIX_FMT_RGB24] = {
- .convert = rgb555_to_rgb24
- },
- [PIX_FMT_RGB32] = {
- .convert = rgb555_to_rgb32
- },
- [PIX_FMT_YUV420P] = {
- .convert = rgb555_to_yuv420p
- },
- [PIX_FMT_GRAY8] = {
- .convert = rgb555_to_gray
- },
- },
- [PIX_FMT_RGB565] = {
- [PIX_FMT_RGB32] = {
- .convert = rgb565_to_rgb32
- },
- [PIX_FMT_RGB24] = {
- .convert = rgb565_to_rgb24
- },
- [PIX_FMT_YUV420P] = {
- .convert = rgb565_to_yuv420p
- },
- [PIX_FMT_GRAY8] = {
- .convert = rgb565_to_gray
- },
- },
- [PIX_FMT_GRAY16BE] = {
- [PIX_FMT_GRAY8] = {
- .convert = gray16be_to_gray
- },
- [PIX_FMT_GRAY16LE] = {
- .convert = gray16_to_gray16
- },
- },
- [PIX_FMT_GRAY16LE] = {
- [PIX_FMT_GRAY8] = {
- .convert = gray16le_to_gray
- },
- [PIX_FMT_GRAY16BE] = {
- .convert = gray16_to_gray16
- },
- },
- [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_RGB32] = {
- .convert = gray_to_rgb32
- },
- [PIX_FMT_MONOWHITE] = {
- .convert = gray_to_monowhite
- },
- [PIX_FMT_MONOBLACK] = {
- .convert = gray_to_monoblack
- },
- [PIX_FMT_GRAY16LE] = {
- .convert = gray_to_gray16
- },
- [PIX_FMT_GRAY16BE] = {
- .convert = gray_to_gray16
- },
- },
- [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_RGB32] = {
- .convert = pal8_to_rgb32
- },
- },
- [PIX_FMT_UYYVYY411] = {
- [PIX_FMT_YUV411P] = {
- .convert = uyyvyy411_to_yuv411p,
- },
- },
- };*/
- int avpicture_alloc(AVPicture *picture,
- int pix_fmt, int width, int height)
- {
- 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;
- }
- 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,
- int 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,
- int 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;
- }
- #ifndef CONFIG_SWSCALE
- static uint8_t y_ccir_to_jpeg[256];
- static uint8_t y_jpeg_to_ccir[256];
- static uint8_t c_ccir_to_jpeg[256];
- static uint8_t c_jpeg_to_ccir[256];
- /* init various conversion tables */
- static void img_convert_init(void)
- {
- int i;
- uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
- for(i = 0;i < 256; i++) {
- y_ccir_to_jpeg[i] = Y_CCIR_TO_JPEG(i);
- y_jpeg_to_ccir[i] = Y_JPEG_TO_CCIR(i);
- c_ccir_to_jpeg[i] = C_CCIR_TO_JPEG(i);
- c_jpeg_to_ccir[i] = C_JPEG_TO_CCIR(i);
- }
- }
- /* apply to each pixel the given table */
- static void img_apply_table(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height, const uint8_t *table1)
- {
- int n;
- const uint8_t *s;
- uint8_t *d;
- const uint8_t *table;
- table = table1;
- for(;height > 0; height--) {
- s = src;
- d = dst;
- n = width;
- while (n >= 4) {
- d[0] = table[s[0]];
- d[1] = table[s[1]];
- d[2] = table[s[2]];
- d[3] = table[s[3]];
- d += 4;
- s += 4;
- n -= 4;
- }
- while (n > 0) {
- d[0] = table[s[0]];
- d++;
- s++;
- n--;
- }
- dst += dst_wrap;
- src += src_wrap;
- }
- }
- /* XXX: use generic filter ? */
- /* XXX: in most cases, the sampling position is incorrect */
- /* 4x1 -> 1x1 */
- static void shrink41(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
- {
- int w;
- const uint8_t *s;
- uint8_t *d;
- for(;height > 0; height--) {
- s = src;
- d = dst;
- for(w = width;w > 0; w--) {
- d[0] = (s[0] + s[1] + s[2] + s[3] + 2) >> 2;
- s += 4;
- d++;
- }
- src += src_wrap;
- dst += dst_wrap;
- }
- }
- /* 2x1 -> 1x1 */
- static void shrink21(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
- {
- int w;
- const uint8_t *s;
- uint8_t *d;
- for(;height > 0; height--) {
- s = src;
- d = dst;
- for(w = width;w > 0; w--) {
- d[0] = (s[0] + s[1]) >> 1;
- s += 2;
- d++;
- }
- src += src_wrap;
- dst += dst_wrap;
- }
- }
- /* 1x2 -> 1x1 */
- static void shrink12(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
- {
- int w;
- uint8_t *d;
- const uint8_t *s1, *s2;
- for(;height > 0; height--) {
- s1 = src;
- s2 = s1 + src_wrap;
- d = dst;
- for(w = width;w >= 4; w-=4) {
- d[0] = (s1[0] + s2[0]) >> 1;
- d[1] = (s1[1] + s2[1]) >> 1;
- d[2] = (s1[2] + s2[2]) >> 1;
- d[3] = (s1[3] + s2[3]) >> 1;
- s1 += 4;
- s2 += 4;
- d += 4;
- }
- for(;w > 0; w--) {
- d[0] = (s1[0] + s2[0]) >> 1;
- s1++;
- s2++;
- d++;
- }
- src += 2 * src_wrap;
- dst += dst_wrap;
- }
- }
- static void grow21_line(uint8_t *dst, const uint8_t *src,
- int width)
- {
- int w;
- const uint8_t *s1;
- uint8_t *d;
- s1 = src;
- d = dst;
- for(w = width;w >= 4; w-=4) {
- d[1] = d[0] = s1[0];
- d[3] = d[2] = s1[1];
- s1 += 2;
- d += 4;
- }
- for(;w >= 2; w -= 2) {
- d[1] = d[0] = s1[0];
- s1 ++;
- d += 2;
- }
- /* only needed if width is not a multiple of two */
- /* XXX: veryfy that */
- if (w) {
- d[0] = s1[0];
- }
- }
- static void grow41_line(uint8_t *dst, const uint8_t *src,
- int width)
- {
- int w, v;
- const uint8_t *s1;
- uint8_t *d;
- s1 = src;
- d = dst;
- for(w = width;w >= 4; w-=4) {
- v = s1[0];
- d[0] = v;
- d[1] = v;
- d[2] = v;
- d[3] = v;
- s1 ++;
- d += 4;
- }
- }
- /* 1x1 -> 2x1 */
- static void grow21(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
- {
- for(;height > 0; height--) {
- grow21_line(dst, src, width);
- src += src_wrap;
- dst += dst_wrap;
- }
- }
- /* 1x1 -> 1x2 */
- static void grow12(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
- {
- for(;height > 0; height-=2) {
- memcpy(dst, src, width);
- dst += dst_wrap;
- memcpy(dst, src, width);
- dst += dst_wrap;
- src += src_wrap;
- }
- }
- /* 1x1 -> 2x2 */
- static void grow22(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
- {
- for(;height > 0; height--) {
- grow21_line(dst, src, width);
- if (height%2)
- src += src_wrap;
- dst += dst_wrap;
- }
- }
- /* 1x1 -> 4x1 */
- static void grow41(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
- {
- for(;height > 0; height--) {
- grow41_line(dst, src, width);
- src += src_wrap;
- dst += dst_wrap;
- }
- }
- /* 1x1 -> 4x4 */
- static void grow44(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
- {
- for(;height > 0; height--) {
- grow41_line(dst, src, width);
- if ((height & 3) == 1)
- src += src_wrap;
- dst += dst_wrap;
- }
- }
- /* 1x2 -> 2x1 */
- static void conv411(uint8_t *dst, int dst_wrap,
- const uint8_t *src, int src_wrap,
- int width, int height)
- {
- int w, c;
- const uint8_t *s1, *s2;
- uint8_t *d;
- width>>=1;
- for(;height > 0; height--) {
- s1 = src;
- s2 = src + src_wrap;
- d = dst;
- for(w = width;w > 0; w--) {
- c = (s1[0] + s2[0]) >> 1;
- d[0] = c;
- d[1] = c;
- s1++;
- s2++;
- d += 2;
- }
- src += src_wrap * 2;
- dst += dst_wrap;
- }
- }
- /* XXX: always use linesize. Return -1 if not supported */
- int img_convert(AVPicture *dst, int dst_pix_fmt,
- const AVPicture *src, int src_pix_fmt,
- int src_width, int src_height)
- {
- static int initialized;
- int i, ret, dst_width, dst_height, int_pix_fmt;
- const PixFmtInfo *src_pix, *dst_pix;
- const 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;
- if (!initialized) {
- initialized = 1;
- img_convert_init();
- }
- 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) {
- /* no conversion needed: just copy */
- av_picture_copy(dst, src, dst_pix_fmt, dst_width, dst_height);
- return 0;
- }
- ce = &convert_table[src_pix_fmt][dst_pix_fmt];
- if (ce->convert) {
- /* specific conversion routine */
- ce->convert(dst, src, dst_width, dst_height);
- return 0;
- }
- /* gray to YUV */
- if (is_yuv_planar(dst_pix) &&
- src_pix_fmt == PIX_FMT_GRAY8) {
- int w, h, y;
- uint8_t *d;
- if (dst_pix->color_type == FF_COLOR_YUV_JPEG) {
- ff_img_copy_plane(dst->data[0], dst->linesize[0],
- src->data[0], src->linesize[0],
- dst_width, dst_height);
- } else {
- img_apply_table(dst->data[0], dst->linesize[0],
- src->data[0], src->linesize[0],
- dst_width, dst_height,
- y_jpeg_to_ccir);
- }
- /* 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 (is_yuv_planar(src_pix) &&
- dst_pix_fmt == PIX_FMT_GRAY8) {
- if (src_pix->color_type == FF_COLOR_YUV_JPEG) {
- ff_img_copy_plane(dst->data[0], dst->linesize[0],
- src->data[0], src->linesize[0],
- dst_width, dst_height);
- } else {
- img_apply_table(dst->data[0], dst->linesize[0],
- src->data[0], src->linesize[0],
- dst_width, dst_height,
- y_ccir_to_jpeg);
- }
- return 0;
- }
- /* YUV to YUV planar */
- if (is_yuv_planar(dst_pix) && is_yuv_planar(src_pix)) {
- int x_shift, y_shift, w, h, xy_shift;
- void (*resize_func)(uint8_t *dst, int dst_wrap,
- const 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);
- xy_shift = ((x_shift & 0xf) << 4) | (y_shift & 0xf);
- /* there must be filters for conversion at least from and to
- YUV444 format */
- switch(xy_shift) {
- case 0x00:
- resize_func = ff_img_copy_plane;
- break;
- case 0x10:
- resize_func = shrink21;
- break;
- case 0x20:
- resize_func = shrink41;
- break;
- case 0x01:
- resize_func = shrink12;
- break;
- case 0x11:
- resize_func = ff_shrink22;
- break;
- case 0x22:
- resize_func = ff_shrink44;
- break;
- case 0xf0:
- resize_func = grow21;
- break;
- case 0x0f:
- resize_func = grow12;
- break;
- case 0xe0:
- resize_func = grow41;
- break;
- case 0xff:
- resize_func = grow22;
- break;
- case 0xee:
- resize_func = grow44;
- break;
- case 0xf1:
- resize_func = conv411;
- break;
- default:
- /* currently not handled */
- goto no_chroma_filter;
- }
- ff_img_copy_plane(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);
- /* if yuv color space conversion is needed, we do it here on
- the destination image */
- if (dst_pix->color_type != src_pix->color_type) {
- const uint8_t *y_table, *c_table;
- if (dst_pix->color_type == FF_COLOR_YUV) {
- y_table = y_jpeg_to_ccir;
- c_table = c_jpeg_to_ccir;
- } else {
- y_table = y_ccir_to_jpeg;
- c_table = c_ccir_to_jpeg;
- }
- img_apply_table(dst->data[0], dst->linesize[0],
- dst->data[0], dst->linesize[0],
- dst_width, dst_height,
- y_table);
- for(i = 1;i <= 2; i++)
- img_apply_table(dst->data[i], dst->linesize[i],
- dst->data[i], dst->linesize[i],
- dst_width>>dst_pix->x_chroma_shift,
- dst_height>>dst_pix->y_chroma_shift,
- c_table);
- }
- return 0;
- }
- no_chroma_filter:
- /* try to use an intermediate format */
- if (src_pix_fmt == PIX_FMT_YUYV422 ||
- dst_pix_fmt == PIX_FMT_YUYV422) {
- /* specific case: convert to YUV422P first */
- int_pix_fmt = PIX_FMT_YUV422P;
- } else if (src_pix_fmt == PIX_FMT_UYVY422 ||
- dst_pix_fmt == PIX_FMT_UYVY422) {
- /* specific case: convert to YUV422P first */
- int_pix_fmt = PIX_FMT_YUV422P;
- } else if (src_pix_fmt == PIX_FMT_UYYVYY411 ||
- dst_pix_fmt == PIX_FMT_UYYVYY411) {
- /* specific case: convert to YUV411P first */
- int_pix_fmt = PIX_FMT_YUV411P;
- } else if ((src_pix->color_type == FF_COLOR_GRAY &&
- src_pix_fmt != PIX_FMT_GRAY8) ||
- (dst_pix->color_type == FF_COLOR_GRAY &&
- dst_pix_fmt != PIX_FMT_GRAY8)) {
- /* gray8 is the normalized format */
- int_pix_fmt = PIX_FMT_GRAY8;
- } else if ((is_yuv_planar(src_pix) &&
- src_pix_fmt != PIX_FMT_YUV444P &&
- src_pix_fmt != PIX_FMT_YUVJ444P)) {
- /* yuv444 is the normalized format */
- if (src_pix->color_type == FF_COLOR_YUV_JPEG)
- int_pix_fmt = PIX_FMT_YUVJ444P;
- else
- int_pix_fmt = PIX_FMT_YUV444P;
- } else if ((is_yuv_planar(dst_pix) &&
- dst_pix_fmt != PIX_FMT_YUV444P &&
- dst_pix_fmt != PIX_FMT_YUVJ444P)) {
- /* yuv444 is the normalized format */
- if (dst_pix->color_type == FF_COLOR_YUV_JPEG)
- int_pix_fmt = PIX_FMT_YUVJ444P;
- else
- int_pix_fmt = PIX_FMT_YUV444P;
- } else {
- /* the two formats are rgb or gray8 or yuv[j]444p */
- if (src_pix->is_alpha && dst_pix->is_alpha)
- int_pix_fmt = PIX_FMT_RGB32;
- else
- int_pix_fmt = PIX_FMT_RGB24;
- }
- if (src_pix_fmt == int_pix_fmt)
- return -1;
- 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;
- }
- #endif
- /* 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,
- int pix_fmt, int width, int height)
- {
- const PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
- int ret;
- pf = &pix_fmt_info[pix_fmt];
-
- if (!pf->is_alpha)
- return 0;
- switch(pix_fmt) {
- case PIX_FMT_RGB32:
- ret = get_alpha_info_rgb32(src, width, height);
- break;
- case PIX_FMT_PAL8:
- ret = get_alpha_info_pal8(src, width, height);
- break;
- default:
-
- ret = FF_ALPHA_TRANSP | FF_ALPHA_SEMI_TRANSP;
- break;
- }
- 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,
- 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)
- {
- #ifndef 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)
- {
- #ifndef 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,
- 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 &&
- 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;
- }