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ffmpeg / libavcodec / pixdesc.c @ 35f6c154

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/*
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 * pixel format descriptor
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 * Copyright (c) 2009 Michael Niedermayer <michaelni@gmx.at>
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include "libavutil/pixfmt.h"
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#include "pixdesc.h"
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const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
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    [PIX_FMT_YUV420P] = {
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        .name = "yuv420p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 1,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_YUYV422] = {
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        .name = "yuyv422",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,1,0,7},        /* Y */
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            {0,3,2,0,7},        /* U */
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            {0,3,4,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_RGB24] = {
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        .name = "rgb24",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,2,1,0,7},        /* R */
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            {0,2,2,0,7},        /* G */
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            {0,2,3,0,7},        /* B */
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        },
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    },
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    [PIX_FMT_BGR24] = {
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        .name = "bgr24",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,2,1,0,7},        /* B */
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            {0,2,2,0,7},        /* G */
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            {0,2,3,0,7},        /* R */
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        },
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    },
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    [PIX_FMT_YUV422P] = {
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        .name = "yuv422p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_YUV444P] = {
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        .name = "yuv444p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_YUV410P] = {
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        .name = "yuv410p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 2,
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        .log2_chroma_h= 2,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_YUV411P] = {
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        .name = "yuv411p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 2,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_GRAY8] = {
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        .name = "gray8",
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        .nb_channels  = 1,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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        },
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    },
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    [PIX_FMT_MONOWHITE] = {
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        .name = "monowhite",
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        .nb_channels  = 1,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,0,0},        /* Y */
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        },
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        .flags = PIX_FMT_BITSTREAM,
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    },
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    [PIX_FMT_MONOBLACK] = {
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        .name = "monoblack",
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        .nb_channels  = 1,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,7,0},        /* Y */
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        },
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        .flags = PIX_FMT_BITSTREAM,
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    },
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    [PIX_FMT_PAL8] = {
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        .name = "pal8",
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        .nb_channels  = 1,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,0,7},
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        },
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        .flags = PIX_FMT_PAL,
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    },
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    [PIX_FMT_YUVJ420P] = {
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        .name = "yuvj420p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 1,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_YUVJ422P] = {
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        .name = "yuvj422p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_YUVJ444P] = {
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        .name = "yuvj444p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_UYVY422] = {
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        .name = "uyvy422",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,2,0,7},        /* Y */
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            {0,3,1,0,7},        /* U */
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            {0,3,3,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_UYYVYY411] = {
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        .name = "uyyvyy411",
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        .nb_channels  = 3,
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        .log2_chroma_w= 2,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,3,2,0,7},        /* Y */
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            {0,5,1,0,7},        /* U */
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            {0,5,4,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_BGR8] = {
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        .name = "bgr8",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,6,1},        /* B */
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            {0,0,1,3,2},        /* G */
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            {0,0,1,0,2},        /* R */
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        },
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    },
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    [PIX_FMT_BGR4] = {
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        .name = "bgr4",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,3,1,0,0},        /* B */
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            {0,3,2,0,1},        /* G */
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            {0,3,4,0,0},        /* R */
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        },
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        .flags = PIX_FMT_BITSTREAM,
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    },
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    [PIX_FMT_BGR4_BYTE] = {
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        .name = "bgr4_byte",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,3,0},        /* B */
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            {0,0,1,1,1},        /* G */
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            {0,0,1,0,0},        /* R */
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        },
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    },
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    [PIX_FMT_RGB8] = {
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        .name = "rgb8",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,6,1},        /* R */
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            {0,0,1,3,2},        /* G */
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            {0,0,1,0,2},        /* B */
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        },
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    },
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    [PIX_FMT_RGB4] = {
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        .name = "rgb4",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,3,1,0,0},       /* R */
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            {0,3,2,0,1},       /* G */
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            {0,3,4,0,0},       /* B */
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        },
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        .flags = PIX_FMT_BITSTREAM,
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    },
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    [PIX_FMT_RGB4_BYTE] = {
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        .name = "rgb4_byte",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,0,1,3,0},        /* R */
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            {0,0,1,1,1},        /* G */
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            {0,0,1,0,0},        /* B */
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        },
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    },
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    [PIX_FMT_NV12] = {
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        .name = "nv12",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 1,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,1,1,0,7},        /* U */
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            {1,1,2,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_NV21] = {
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        .name = "nv21",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 1,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,1,1,0,7},        /* V */
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            {1,1,2,0,7},        /* U */
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        },
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    },
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    [PIX_FMT_ARGB] = {
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        .name = "argb",
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        .nb_channels  = 4,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,3,1,0,7},        /* A */
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            {0,3,2,0,7},        /* R */
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            {0,3,3,0,7},        /* G */
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            {0,3,4,0,7},        /* B */
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        },
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    },
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    [PIX_FMT_RGBA] = {
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        .name = "rgba",
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        .nb_channels  = 4,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,3,1,0,7},        /* R */
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            {0,3,2,0,7},        /* G */
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            {0,3,3,0,7},        /* B */
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            {0,3,4,0,7},        /* A */
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        },
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    },
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    [PIX_FMT_ABGR] = {
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        .name = "abgr",
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        .nb_channels  = 4,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,3,1,0,7},        /* A */
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            {0,3,2,0,7},        /* B */
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            {0,3,3,0,7},        /* G */
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            {0,3,4,0,7},        /* R */
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        },
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    },
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    [PIX_FMT_BGRA] = {
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        .name = "bgra",
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        .nb_channels  = 4,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,3,1,0,7},        /* B */
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            {0,3,2,0,7},        /* G */
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            {0,3,3,0,7},        /* R */
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            {0,3,4,0,7},        /* A */
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        },
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    },
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    [PIX_FMT_GRAY16BE] = {
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        .name = "gray16be",
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        .nb_channels  = 1,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,1,0,15},       /* Y */
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        },
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        .flags = PIX_FMT_BE,
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    },
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    [PIX_FMT_GRAY16LE] = {
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        .name = "gray16le",
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        .nb_channels  = 1,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,1,0,15},       /* Y */
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        },
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    },
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    [PIX_FMT_YUV440P] = {
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        .name = "yuv440p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 1,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_YUVJ440P] = {
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        .name = "yuvj440p",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 1,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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        },
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    },
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    [PIX_FMT_YUVA420P] = {
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        .name = "yuva420p",
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        .nb_channels  = 4,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 1,
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        .comp = {
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            {0,0,1,0,7},        /* Y */
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            {1,0,1,0,7},        /* U */
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            {2,0,1,0,7},        /* V */
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            {3,0,1,0,7},        /* A */
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        },
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    },
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    [PIX_FMT_RGB48BE] = {
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        .name = "rgb48be",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,5,1,0,15},       /* R */
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            {0,5,3,0,15},       /* G */
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            {0,5,5,0,15},       /* B */
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        },
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        .flags = PIX_FMT_BE,
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    },
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    [PIX_FMT_RGB48LE] = {
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        .name = "rgb48le",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,5,1,0,15},       /* R */
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            {0,5,3,0,15},       /* G */
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            {0,5,5,0,15},       /* B */
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        },
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    },
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    [PIX_FMT_RGB565BE] = {
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        .name = "rgb565be",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,0,3,4},        /* R */
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            {0,1,1,5,5},        /* G */
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            {0,1,1,0,4},        /* B */
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        },
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        .flags = PIX_FMT_BE,
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    },
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    [PIX_FMT_RGB565LE] = {
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        .name = "rgb565le",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,2,3,4},        /* R */
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            {0,1,1,5,5},        /* G */
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            {0,1,1,0,4},        /* B */
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        },
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    },
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    [PIX_FMT_RGB555BE] = {
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        .name = "rgb555be",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,0,2,4},        /* R */
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            {0,1,1,5,4},        /* G */
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            {0,1,1,0,4},        /* B */
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        },
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        .flags = PIX_FMT_BE,
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    },
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    [PIX_FMT_RGB555LE] = {
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        .name = "rgb555le",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,2,2,4},        /* R */
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            {0,1,1,5,4},        /* G */
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            {0,1,1,0,4},        /* B */
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        },
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    },
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    [PIX_FMT_BGR565BE] = {
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        .name = "bgr565be",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,0,3,4},        /* B */
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            {0,1,1,5,5},        /* G */
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            {0,1,1,0,4},        /* R */
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        },
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        .flags = PIX_FMT_BE,
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    },
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    [PIX_FMT_BGR565LE] = {
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        .name = "bgr565le",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,2,3,4},        /* B */
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            {0,1,1,5,5},        /* G */
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            {0,1,1,0,4},        /* R */
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        },
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    },
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    [PIX_FMT_BGR555BE] = {
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        .name = "bgr555be",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,0,2,4},       /* B */
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            {0,1,1,5,4},       /* G */
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            {0,1,1,0,4},       /* R */
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        },
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        .flags = PIX_FMT_BE,
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     },
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    [PIX_FMT_BGR555LE] = {
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        .name = "bgr555le",
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        .nb_channels  = 3,
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        .log2_chroma_w= 0,
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        .log2_chroma_h= 0,
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        .comp = {
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            {0,1,2,2,4},        /* B */
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            {0,1,1,5,4},        /* G */
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            {0,1,1,0,4},        /* R */
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        },
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    },
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    [PIX_FMT_YUV420P16LE] = {
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        .name = "yuv420p16le",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 1,
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        .comp = {
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            {0,1,1,0,15},        /* Y */
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            {1,1,1,0,15},        /* U */
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            {2,1,1,0,15},        /* V */
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        },
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    },
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    [PIX_FMT_YUV420P16BE] = {
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        .name = "yuv420p16be",
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        .nb_channels  = 3,
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        .log2_chroma_w= 1,
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        .log2_chroma_h= 1,
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        .comp = {
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            {0,1,1,0,15},        /* Y */
532
            {1,1,1,0,15},        /* U */
533
            {2,1,1,0,15},        /* V */
534
        },
535
        .flags = PIX_FMT_BE,
536
    },
537
    [PIX_FMT_YUV422P16LE] = {
538
        .name = "yuv422p16le",
539
        .nb_channels  = 3,
540
        .log2_chroma_w= 1,
541
        .log2_chroma_h= 0,
542
        .comp = {
543
            {0,1,1,0,15},        /* Y */
544
            {1,1,1,0,15},        /* U */
545
            {2,1,1,0,15},        /* V */
546
        },
547
    },
548
    [PIX_FMT_YUV422P16BE] = {
549
        .name = "yuv422p16be",
550
        .nb_channels  = 3,
551
        .log2_chroma_w= 1,
552
        .log2_chroma_h= 0,
553
        .comp = {
554
            {0,1,1,0,15},        /* Y */
555
            {1,1,1,0,15},        /* U */
556
            {2,1,1,0,15},        /* V */
557
        },
558
        .flags = PIX_FMT_BE,
559
    },
560
    [PIX_FMT_YUV444P16LE] = {
561
        .name = "yuv444p16le",
562
        .nb_channels  = 3,
563
        .log2_chroma_w= 0,
564
        .log2_chroma_h= 0,
565
        .comp = {
566
            {0,1,1,0,15},        /* Y */
567
            {1,1,1,0,15},        /* U */
568
            {2,1,1,0,15},        /* V */
569
        },
570
    },
571
    [PIX_FMT_YUV444P16BE] = {
572
        .name = "yuv444p16be",
573
        .nb_channels  = 3,
574
        .log2_chroma_w= 0,
575
        .log2_chroma_h= 0,
576
        .comp = {
577
            {0,1,1,0,15},        /* Y */
578
            {1,1,1,0,15},        /* U */
579
            {2,1,1,0,15},        /* V */
580
        },
581
        .flags = PIX_FMT_BE,
582
    },
583
};
584

    
585
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
586
{
587
    int c, bits = 0;
588
    int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
589

    
590
    for (c = 0; c < pixdesc->nb_channels; c++) {
591
        int s = c==1 || c==2 ? 0 : log2_pixels;
592
        bits += (pixdesc->comp[c].depth_minus1+1) << s;
593
    }
594

    
595
    return bits >> log2_pixels;
596
}