/xbmc/cores/dvdplayer/Codecs/ffmpeg/libavcodec/imgconvert.c
C | 3002 lines | 2648 code | 236 blank | 118 comment | 297 complexity | b36766a71b94bfe60653f88ab89a21fb MD5 | raw file
Possible License(s): Unlicense, AGPL-1.0, GPL-2.0, LGPL-2.1, GPL-3.0
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- /*
- * 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 libavcodec/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 "avcodec.h"
- #include "dsputil.h"
- #include "colorspace.h"
- #if 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 is_hwaccel : 1; /**< true if this is an HW accelerated format */
- 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] = {
- /* YUV formats */
- [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,
- },
- /* YUV formats with alpha plane */
- [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,
- },
- /* JPEG YUV */
- [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,
- },
- /* RGB formats */
- [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_RGB48BE] = {
- .name = "rgb48be",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 16,
- .x_chroma_shift = 0, .y_chroma_shift = 0,
- },
- [PIX_FMT_RGB48LE] = {
- .name = "rgb48le",
- .nb_channels = 3,
- .color_type = FF_COLOR_RGB,
- .pixel_type = FF_PIXEL_PACKED,
- .depth = 16,
- .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,
- },
- /* gray / mono formats */
- [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,
- },
- /* paletted formats */
- [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",
- .is_hwaccel = 1,
- },
- [PIX_FMT_XVMC_MPEG2_IDCT] = {
- .name = "xvmcidct",
- .is_hwaccel = 1,
- },
- [PIX_FMT_VDPAU_MPEG1] = {
- .name = "vdpau_mpeg1",
- .is_hwaccel = 1,
- },
- [PIX_FMT_VDPAU_MPEG2] = {
- .name = "vdpau_mpeg2",
- .is_hwaccel = 1,
- },
- [PIX_FMT_VDPAU_H264] = {
- .name = "vdpau_h264",
- .is_hwaccel = 1,
- },
- [PIX_FMT_VDPAU_WMV3] = {
- .name = "vdpau_wmv3",
- .is_hwaccel = 1,
- },
- [PIX_FMT_VDPAU_VC1] = {
- .name = "vdpau_vc1",
- .is_hwaccel = 1,
- },
- [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,
- },
- /* VA API formats */
- [PIX_FMT_VAAPI_MOCO] = {
- .name = "vaapi_moco",
- .is_hwaccel = 1,
- },
- [PIX_FMT_VAAPI_IDCT] = {
- .name = "vaapi_idct",
- .is_hwaccel = 1,
- },
- [PIX_FMT_VAAPI_VLD] = {
- .name = "vaapi_vld",
- .is_hwaccel = 1,
- },
- };
- 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 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_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, 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_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;
- 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_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,
- 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, 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(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(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;
- }
- }
- /* XXX: totally non optimized */
- 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;
- }
- /* copy bit n to bits 0 ... n - 1 */
- static inline unsigned int bitcopy_n(unsigned int a, int n)
- {
- int mask;
- mask = (1 << n) - 1;
- return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask);
- }
- /* rgb555 handling */
- #define RGB_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"
- /* rgb565 handling */
- #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"
- /* bgr24 handling */
- #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
- /* rgb24 handling */
- #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"
- /* rgb32 handling */
- #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] = {
- …
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