/* * pixel format descriptor * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at> * * 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 */ #include <stdio.h> #include <string.h> #include "pixfmt.h" #include "pixdesc.h" #include "intreadwrite.h" void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4], const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component) { AVComponentDescriptor comp= desc->comp[c]; int plane= comp.plane; int depth= comp.depth_minus1+1; int mask = (1<<depth)-1; int shift= comp.shift; int step = comp.step_minus1+1; int flags= desc->flags; if (flags & PIX_FMT_BITSTREAM){ int skip = x*step + comp.offset_plus1-1; const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3); int shift = 8 - depth - (skip&7); while(w--){ int val = (*p >> shift) & mask; if(read_pal_component) val= data[1][4*val + c]; shift -= step; p -= shift>>3; shift &= 7; *dst++= val; } } else { const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1; while(w--){ int val; if(flags & PIX_FMT_BE) val= AV_RB16(p); else val= AV_RL16(p); val = (val>>shift) & mask; if(read_pal_component) val= data[1][4*val + c]; p+= step; *dst++= val; } } } void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4], const AVPixFmtDescriptor *desc, int x, int y, int c, int w) { AVComponentDescriptor comp = desc->comp[c]; int plane = comp.plane; int depth = comp.depth_minus1+1; int step = comp.step_minus1+1; int flags = desc->flags; if (flags & PIX_FMT_BITSTREAM) { int skip = x*step + comp.offset_plus1-1; uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3); int shift = 8 - depth - (skip&7); while (w--) { *p |= *src++ << shift; shift -= step; p -= shift>>3; shift &= 7; } } else { int shift = comp.shift; uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1; while (w--) { if (flags & PIX_FMT_BE) { uint16_t val = AV_RB16(p) | (*src++<<shift); AV_WB16(p, val); } else { uint16_t val = AV_RL16(p) | (*src++<<shift); AV_WL16(p, val); } p+= step; } } } const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = { [PIX_FMT_YUV420P] = { .name = "yuv420p", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 1, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_YUYV422] = { .name = "yuyv422", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 0, .comp = { {0,1,1,0,7}, /* Y */ {0,3,2,0,7}, /* U */ {0,3,4,0,7}, /* V */ }, }, [PIX_FMT_RGB24] = { .name = "rgb24", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,2,1,0,7}, /* R */ {0,2,2,0,7}, /* G */ {0,2,3,0,7}, /* B */ }, }, [PIX_FMT_BGR24] = { .name = "bgr24", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,2,1,0,7}, /* B */ {0,2,2,0,7}, /* G */ {0,2,3,0,7}, /* R */ }, }, [PIX_FMT_YUV422P] = { .name = "yuv422p", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 0, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_YUV444P] = { .name = "yuv444p", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_YUV410P] = { .name = "yuv410p", .nb_components= 3, .log2_chroma_w= 2, .log2_chroma_h= 2, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_YUV411P] = { .name = "yuv411p", .nb_components= 3, .log2_chroma_w= 2, .log2_chroma_h= 0, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_GRAY8] = { .name = "gray", .nb_components= 1, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,0,7}, /* Y */ }, .flags = PIX_FMT_PAL, }, [PIX_FMT_MONOWHITE] = { .name = "monow", .nb_components= 1, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,0,0}, /* Y */ }, .flags = PIX_FMT_BITSTREAM, }, [PIX_FMT_MONOBLACK] = { .name = "monob", .nb_components= 1, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,7,0}, /* Y */ }, .flags = PIX_FMT_BITSTREAM, }, [PIX_FMT_PAL8] = { .name = "pal8", .nb_components= 1, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,0,7}, }, .flags = PIX_FMT_PAL, }, [PIX_FMT_YUVJ420P] = { .name = "yuvj420p", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 1, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_YUVJ422P] = { .name = "yuvj422p", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 0, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_YUVJ444P] = { .name = "yuvj444p", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_XVMC_MPEG2_MC] = { .name = "xvmcmc", .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_XVMC_MPEG2_IDCT] = { .name = "xvmcidct", .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_UYVY422] = { .name = "uyvy422", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 0, .comp = { {0,1,2,0,7}, /* Y */ {0,3,1,0,7}, /* U */ {0,3,3,0,7}, /* V */ }, }, [PIX_FMT_UYYVYY411] = { .name = "uyyvyy411", .nb_components= 3, .log2_chroma_w= 2, .log2_chroma_h= 0, .comp = { {0,3,2,0,7}, /* Y */ {0,5,1,0,7}, /* U */ {0,5,4,0,7}, /* V */ }, }, [PIX_FMT_BGR8] = { .name = "bgr8", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,6,1}, /* B */ {0,0,1,3,2}, /* G */ {0,0,1,0,2}, /* R */ }, .flags = PIX_FMT_PAL, }, [PIX_FMT_BGR4] = { .name = "bgr4", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,3,1,0,0}, /* B */ {0,3,2,0,1}, /* G */ {0,3,4,0,0}, /* R */ }, .flags = PIX_FMT_BITSTREAM, }, [PIX_FMT_BGR4_BYTE] = { .name = "bgr4_byte", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,3,0}, /* B */ {0,0,1,1,1}, /* G */ {0,0,1,0,0}, /* R */ }, .flags = PIX_FMT_PAL, }, [PIX_FMT_RGB8] = { .name = "rgb8", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,6,1}, /* R */ {0,0,1,3,2}, /* G */ {0,0,1,0,2}, /* B */ }, .flags = PIX_FMT_PAL, }, [PIX_FMT_RGB4] = { .name = "rgb4", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,3,1,0,0}, /* R */ {0,3,2,0,1}, /* G */ {0,3,4,0,0}, /* B */ }, .flags = PIX_FMT_BITSTREAM, }, [PIX_FMT_RGB4_BYTE] = { .name = "rgb4_byte", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,0,1,3,0}, /* R */ {0,0,1,1,1}, /* G */ {0,0,1,0,0}, /* B */ }, .flags = PIX_FMT_PAL, }, [PIX_FMT_NV12] = { .name = "nv12", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 1, .comp = { {0,0,1,0,7}, /* Y */ {1,1,1,0,7}, /* U */ {1,1,2,0,7}, /* V */ }, }, [PIX_FMT_NV21] = { .name = "nv21", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 1, .comp = { {0,0,1,0,7}, /* Y */ {1,1,1,0,7}, /* V */ {1,1,2,0,7}, /* U */ }, }, [PIX_FMT_ARGB] = { .name = "argb", .nb_components= 4, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,3,1,0,7}, /* A */ {0,3,2,0,7}, /* R */ {0,3,3,0,7}, /* G */ {0,3,4,0,7}, /* B */ }, }, [PIX_FMT_RGBA] = { .name = "rgba", .nb_components= 4, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,3,1,0,7}, /* R */ {0,3,2,0,7}, /* G */ {0,3,3,0,7}, /* B */ {0,3,4,0,7}, /* A */ }, }, [PIX_FMT_ABGR] = { .name = "abgr", .nb_components= 4, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,3,1,0,7}, /* A */ {0,3,2,0,7}, /* B */ {0,3,3,0,7}, /* G */ {0,3,4,0,7}, /* R */ }, }, [PIX_FMT_BGRA] = { .name = "bgra", .nb_components= 4, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,3,1,0,7}, /* B */ {0,3,2,0,7}, /* G */ {0,3,3,0,7}, /* R */ {0,3,4,0,7}, /* A */ }, }, [PIX_FMT_GRAY16BE] = { .name = "gray16be", .nb_components= 1, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,1,0,15}, /* Y */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_GRAY16LE] = { .name = "gray16le", .nb_components= 1, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,1,0,15}, /* Y */ }, }, [PIX_FMT_YUV440P] = { .name = "yuv440p", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 1, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_YUVJ440P] = { .name = "yuvj440p", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 1, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ }, }, [PIX_FMT_YUVA420P] = { .name = "yuva420p", .nb_components= 4, .log2_chroma_w= 1, .log2_chroma_h= 1, .comp = { {0,0,1,0,7}, /* Y */ {1,0,1,0,7}, /* U */ {2,0,1,0,7}, /* V */ {3,0,1,0,7}, /* A */ }, }, [PIX_FMT_VDPAU_H264] = { .name = "vdpau_h264", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_VDPAU_MPEG1] = { .name = "vdpau_mpeg1", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_VDPAU_MPEG2] = { .name = "vdpau_mpeg2", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_VDPAU_WMV3] = { .name = "vdpau_wmv3", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_VDPAU_VC1] = { .name = "vdpau_vc1", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_VDPAU_MPEG4] = { .name = "vdpau_mpeg4", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_RGB48BE] = { .name = "rgb48be", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,5,1,0,15}, /* R */ {0,5,3,0,15}, /* G */ {0,5,5,0,15}, /* B */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_RGB48LE] = { .name = "rgb48le", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,5,1,0,15}, /* R */ {0,5,3,0,15}, /* G */ {0,5,5,0,15}, /* B */ }, }, [PIX_FMT_RGB565BE] = { .name = "rgb565be", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,0,3,4}, /* R */ {0,1,1,5,5}, /* G */ {0,1,1,0,4}, /* B */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_RGB565LE] = { .name = "rgb565le", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,2,3,4}, /* R */ {0,1,1,5,5}, /* G */ {0,1,1,0,4}, /* B */ }, }, [PIX_FMT_RGB555BE] = { .name = "rgb555be", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,0,2,4}, /* R */ {0,1,1,5,4}, /* G */ {0,1,1,0,4}, /* B */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_RGB555LE] = { .name = "rgb555le", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,2,2,4}, /* R */ {0,1,1,5,4}, /* G */ {0,1,1,0,4}, /* B */ }, }, [PIX_FMT_RGB444BE] = { .name = "rgb444be", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,0,0,3}, /* R */ {0,1,1,4,3}, /* G */ {0,1,1,0,3}, /* B */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_RGB444LE] = { .name = "rgb444le", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,2,0,3}, /* R */ {0,1,1,4,3}, /* G */ {0,1,1,0,3}, /* B */ }, }, [PIX_FMT_BGR565BE] = { .name = "bgr565be", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,0,3,4}, /* B */ {0,1,1,5,5}, /* G */ {0,1,1,0,4}, /* R */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_BGR565LE] = { .name = "bgr565le", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,2,3,4}, /* B */ {0,1,1,5,5}, /* G */ {0,1,1,0,4}, /* R */ }, }, [PIX_FMT_BGR555BE] = { .name = "bgr555be", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,0,2,4}, /* B */ {0,1,1,5,4}, /* G */ {0,1,1,0,4}, /* R */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_BGR555LE] = { .name = "bgr555le", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,2,2,4}, /* B */ {0,1,1,5,4}, /* G */ {0,1,1,0,4}, /* R */ }, }, [PIX_FMT_BGR444BE] = { .name = "bgr444be", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,0,0,3}, /* B */ {0,1,1,4,3}, /* G */ {0,1,1,0,3}, /* R */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_BGR444LE] = { .name = "bgr444le", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,2,0,3}, /* B */ {0,1,1,4,3}, /* G */ {0,1,1,0,3}, /* R */ }, }, [PIX_FMT_VAAPI_MOCO] = { .name = "vaapi_moco", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_VAAPI_IDCT] = { .name = "vaapi_idct", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_VAAPI_VLD] = { .name = "vaapi_vld", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_YUV420P16LE] = { .name = "yuv420p16le", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 1, .comp = { {0,1,1,0,15}, /* Y */ {1,1,1,0,15}, /* U */ {2,1,1,0,15}, /* V */ }, }, [PIX_FMT_YUV420P16BE] = { .name = "yuv420p16be", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 1, .comp = { {0,1,1,0,15}, /* Y */ {1,1,1,0,15}, /* U */ {2,1,1,0,15}, /* V */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_YUV422P16LE] = { .name = "yuv422p16le", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 0, .comp = { {0,1,1,0,15}, /* Y */ {1,1,1,0,15}, /* U */ {2,1,1,0,15}, /* V */ }, }, [PIX_FMT_YUV422P16BE] = { .name = "yuv422p16be", .nb_components= 3, .log2_chroma_w= 1, .log2_chroma_h= 0, .comp = { {0,1,1,0,15}, /* Y */ {1,1,1,0,15}, /* U */ {2,1,1,0,15}, /* V */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_YUV444P16LE] = { .name = "yuv444p16le", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,1,0,15}, /* Y */ {1,1,1,0,15}, /* U */ {2,1,1,0,15}, /* V */ }, }, [PIX_FMT_YUV444P16BE] = { .name = "yuv444p16be", .nb_components= 3, .log2_chroma_w= 0, .log2_chroma_h= 0, .comp = { {0,1,1,0,15}, /* Y */ {1,1,1,0,15}, /* U */ {2,1,1,0,15}, /* V */ }, .flags = PIX_FMT_BE, }, [PIX_FMT_DXVA2_VLD] = { .name = "dxva2_vld", .log2_chroma_w = 1, .log2_chroma_h = 1, .flags = PIX_FMT_HWACCEL, }, [PIX_FMT_Y400A] = { .name = "y400a", .nb_components= 2, .comp = { {0,1,1,0,7}, /* Y */ {0,1,2,0,7}, /* A */ }, }, }; static enum PixelFormat get_pix_fmt_internal(const char *name) { enum PixelFormat pix_fmt; for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) if (av_pix_fmt_descriptors[pix_fmt].name && !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name)) return pix_fmt; return PIX_FMT_NONE; } #if HAVE_BIGENDIAN # define X_NE(be, le) be #else # define X_NE(be, le) le #endif enum PixelFormat av_get_pix_fmt(const char *name) { enum PixelFormat pix_fmt; if (!strcmp(name, "rgb32")) name = X_NE("argb", "bgra"); else if (!strcmp(name, "bgr32")) name = X_NE("abgr", "rgba"); pix_fmt = get_pix_fmt_internal(name); if (pix_fmt == PIX_FMT_NONE) { char name2[32]; snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le")); pix_fmt = get_pix_fmt_internal(name2); } return pix_fmt; } int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc) { int c, bits = 0; int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h; for (c = 0; c < pixdesc->nb_components; c++) { int s = c==1 || c==2 ? 0 : log2_pixels; bits += (pixdesc->comp[c].depth_minus1+1) << s; } return bits >> log2_pixels; }