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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 Libav.
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 *
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 * Libav 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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 * Libav 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 Libav; 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 <stdio.h>
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#include <string.h>
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#include "pixfmt.h"
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#include "pixdesc.h"
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#include "intreadwrite.h"
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void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4],
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                        const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
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{
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    AVComponentDescriptor comp= desc->comp[c];
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    int plane= comp.plane;
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    int depth= comp.depth_minus1+1;
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    int mask = (1<<depth)-1;
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    int shift= comp.shift;
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    int step = comp.step_minus1+1;
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    int flags= desc->flags;
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    if (flags & PIX_FMT_BITSTREAM){
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        int skip = x*step + comp.offset_plus1-1;
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        const uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
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        int shift = 8 - depth - (skip&7);
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        while(w--){
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            int val = (*p >> shift) & mask;
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            if(read_pal_component)
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                val= data[1][4*val + c];
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            shift -= step;
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            p -= shift>>3;
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            shift &= 7;
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            *dst++= val;
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        }
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    } else {
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        const uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
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        int is_8bit = shift + depth <= 8;
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        if (is_8bit)
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            p += !!(flags & PIX_FMT_BE);
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        while(w--){
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            int val = is_8bit ? *p :
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                flags & PIX_FMT_BE ? AV_RB16(p) : AV_RL16(p);
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            val = (val>>shift) & mask;
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            if(read_pal_component)
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                val= data[1][4*val + c];
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            p+= step;
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            *dst++= val;
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        }
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    }
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}
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void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4],
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                         const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
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{
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    AVComponentDescriptor comp = desc->comp[c];
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    int plane = comp.plane;
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    int depth = comp.depth_minus1+1;
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    int step  = comp.step_minus1+1;
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    int flags = desc->flags;
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    if (flags & PIX_FMT_BITSTREAM) {
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        int skip = x*step + comp.offset_plus1-1;
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        uint8_t *p = data[plane] + y*linesize[plane] + (skip>>3);
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        int shift = 8 - depth - (skip&7);
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        while (w--) {
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            *p |= *src++ << shift;
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            shift -= step;
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            p -= shift>>3;
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            shift &= 7;
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        }
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    } else {
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        int shift = comp.shift;
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        uint8_t *p = data[plane]+ y*linesize[plane] + x*step + comp.offset_plus1-1;
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        if (shift + depth <= 8) {
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            p += !!(flags & PIX_FMT_BE);
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            while (w--) {
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                *p |= (*src++<<shift);
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                p += step;
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            }
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        } else {
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            while (w--) {
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                if (flags & PIX_FMT_BE) {
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                    uint16_t val = AV_RB16(p) | (*src++<<shift);
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                    AV_WB16(p, val);
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                } else {
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                    uint16_t val = AV_RL16(p) | (*src++<<shift);
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                    AV_WL16(p, val);
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                }
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                p+= step;
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            }
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        }
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    }
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}
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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_components= 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_components= 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_components= 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_components= 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_components= 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_components= 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_components= 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_components= 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 = "gray",
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        .nb_components= 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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        .flags = PIX_FMT_PAL,
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    },
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    [PIX_FMT_MONOWHITE] = {
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        .name = "monow",
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        .nb_components= 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 = "monob",
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        .nb_components= 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_components= 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_components= 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_components= 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_components= 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_XVMC_MPEG2_MC] = {
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        .name = "xvmcmc",
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        .flags = PIX_FMT_HWACCEL,
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    },
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    [PIX_FMT_XVMC_MPEG2_IDCT] = {
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        .name = "xvmcidct",
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        .flags = PIX_FMT_HWACCEL,
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    },
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    [PIX_FMT_UYVY422] = {
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        .name = "uyvy422",
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        .nb_components= 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_components= 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_components= 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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        .flags = PIX_FMT_PAL,
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    },
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    [PIX_FMT_BGR4] = {
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        .name = "bgr4",
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        .nb_components= 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_components= 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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        .flags = PIX_FMT_PAL,
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    },
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    [PIX_FMT_RGB8] = {
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        .name = "rgb8",
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        .nb_components= 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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        .flags = PIX_FMT_PAL,
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    },
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    [PIX_FMT_RGB4] = {
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        .name = "rgb4",
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        .nb_components= 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_components= 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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        .flags = PIX_FMT_PAL,
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    },
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    [PIX_FMT_NV12] = {
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        .name = "nv12",
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        .nb_components= 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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        },
392
    },
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    [PIX_FMT_NV21] = {
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        .name = "nv21",
395
        .nb_components= 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 */
400
            {1,1,1,0,7},        /* V */
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            {1,1,2,0,7},        /* U */
402
        },
403
    },
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    [PIX_FMT_ARGB] = {
405
        .name = "argb",
406
        .nb_components= 4,
407
        .log2_chroma_w= 0,
408
        .log2_chroma_h= 0,
409
        .comp = {
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            {0,3,1,0,7},        /* A */
411
            {0,3,2,0,7},        /* R */
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            {0,3,3,0,7},        /* G */
413
            {0,3,4,0,7},        /* B */
414
        },
415
    },
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    [PIX_FMT_RGBA] = {
417
        .name = "rgba",
418
        .nb_components= 4,
419
        .log2_chroma_w= 0,
420
        .log2_chroma_h= 0,
421
        .comp = {
422
            {0,3,1,0,7},        /* R */
423
            {0,3,2,0,7},        /* G */
424
            {0,3,3,0,7},        /* B */
425
            {0,3,4,0,7},        /* A */
426
        },
427
    },
428
    [PIX_FMT_ABGR] = {
429
        .name = "abgr",
430
        .nb_components= 4,
431
        .log2_chroma_w= 0,
432
        .log2_chroma_h= 0,
433
        .comp = {
434
            {0,3,1,0,7},        /* A */
435
            {0,3,2,0,7},        /* B */
436
            {0,3,3,0,7},        /* G */
437
            {0,3,4,0,7},        /* R */
438
        },
439
    },
440
    [PIX_FMT_BGRA] = {
441
        .name = "bgra",
442
        .nb_components= 4,
443
        .log2_chroma_w= 0,
444
        .log2_chroma_h= 0,
445
        .comp = {
446
            {0,3,1,0,7},        /* B */
447
            {0,3,2,0,7},        /* G */
448
            {0,3,3,0,7},        /* R */
449
            {0,3,4,0,7},        /* A */
450
        },
451
    },
452
    [PIX_FMT_GRAY16BE] = {
453
        .name = "gray16be",
454
        .nb_components= 1,
455
        .log2_chroma_w= 0,
456
        .log2_chroma_h= 0,
457
        .comp = {
458
            {0,1,1,0,15},       /* Y */
459
        },
460
        .flags = PIX_FMT_BE,
461
    },
462
    [PIX_FMT_GRAY16LE] = {
463
        .name = "gray16le",
464
        .nb_components= 1,
465
        .log2_chroma_w= 0,
466
        .log2_chroma_h= 0,
467
        .comp = {
468
            {0,1,1,0,15},       /* Y */
469
        },
470
    },
471
    [PIX_FMT_YUV440P] = {
472
        .name = "yuv440p",
473
        .nb_components= 3,
474
        .log2_chroma_w= 0,
475
        .log2_chroma_h= 1,
476
        .comp = {
477
            {0,0,1,0,7},        /* Y */
478
            {1,0,1,0,7},        /* U */
479
            {2,0,1,0,7},        /* V */
480
        },
481
    },
482
    [PIX_FMT_YUVJ440P] = {
483
        .name = "yuvj440p",
484
        .nb_components= 3,
485
        .log2_chroma_w= 0,
486
        .log2_chroma_h= 1,
487
        .comp = {
488
            {0,0,1,0,7},        /* Y */
489
            {1,0,1,0,7},        /* U */
490
            {2,0,1,0,7},        /* V */
491
        },
492
    },
493
    [PIX_FMT_YUVA420P] = {
494
        .name = "yuva420p",
495
        .nb_components= 4,
496
        .log2_chroma_w= 1,
497
        .log2_chroma_h= 1,
498
        .comp = {
499
            {0,0,1,0,7},        /* Y */
500
            {1,0,1,0,7},        /* U */
501
            {2,0,1,0,7},        /* V */
502
            {3,0,1,0,7},        /* A */
503
        },
504
    },
505
    [PIX_FMT_VDPAU_H264] = {
506
        .name = "vdpau_h264",
507
        .log2_chroma_w = 1,
508
        .log2_chroma_h = 1,
509
        .flags = PIX_FMT_HWACCEL,
510
    },
511
    [PIX_FMT_VDPAU_MPEG1] = {
512
        .name = "vdpau_mpeg1",
513
        .log2_chroma_w = 1,
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        .log2_chroma_h = 1,
515
        .flags = PIX_FMT_HWACCEL,
516
    },
517
    [PIX_FMT_VDPAU_MPEG2] = {
518
        .name = "vdpau_mpeg2",
519
        .log2_chroma_w = 1,
520
        .log2_chroma_h = 1,
521
        .flags = PIX_FMT_HWACCEL,
522
    },
523
    [PIX_FMT_VDPAU_WMV3] = {
524
        .name = "vdpau_wmv3",
525
        .log2_chroma_w = 1,
526
        .log2_chroma_h = 1,
527
        .flags = PIX_FMT_HWACCEL,
528
    },
529
    [PIX_FMT_VDPAU_VC1] = {
530
        .name = "vdpau_vc1",
531
        .log2_chroma_w = 1,
532
        .log2_chroma_h = 1,
533
        .flags = PIX_FMT_HWACCEL,
534
    },
535
    [PIX_FMT_VDPAU_MPEG4] = {
536
        .name = "vdpau_mpeg4",
537
        .log2_chroma_w = 1,
538
        .log2_chroma_h = 1,
539
        .flags = PIX_FMT_HWACCEL,
540
    },
541
    [PIX_FMT_RGB48BE] = {
542
        .name = "rgb48be",
543
        .nb_components= 3,
544
        .log2_chroma_w= 0,
545
        .log2_chroma_h= 0,
546
        .comp = {
547
            {0,5,1,0,15},       /* R */
548
            {0,5,3,0,15},       /* G */
549
            {0,5,5,0,15},       /* B */
550
        },
551
        .flags = PIX_FMT_BE,
552
    },
553
    [PIX_FMT_RGB48LE] = {
554
        .name = "rgb48le",
555
        .nb_components= 3,
556
        .log2_chroma_w= 0,
557
        .log2_chroma_h= 0,
558
        .comp = {
559
            {0,5,1,0,15},       /* R */
560
            {0,5,3,0,15},       /* G */
561
            {0,5,5,0,15},       /* B */
562
        },
563
    },
564
    [PIX_FMT_RGB565BE] = {
565
        .name = "rgb565be",
566
        .nb_components= 3,
567
        .log2_chroma_w= 0,
568
        .log2_chroma_h= 0,
569
        .comp = {
570
            {0,1,0,3,4},        /* R */
571
            {0,1,1,5,5},        /* G */
572
            {0,1,1,0,4},        /* B */
573
        },
574
        .flags = PIX_FMT_BE,
575
    },
576
    [PIX_FMT_RGB565LE] = {
577
        .name = "rgb565le",
578
        .nb_components= 3,
579
        .log2_chroma_w= 0,
580
        .log2_chroma_h= 0,
581
        .comp = {
582
            {0,1,2,3,4},        /* R */
583
            {0,1,1,5,5},        /* G */
584
            {0,1,1,0,4},        /* B */
585
        },
586
    },
587
    [PIX_FMT_RGB555BE] = {
588
        .name = "rgb555be",
589
        .nb_components= 3,
590
        .log2_chroma_w= 0,
591
        .log2_chroma_h= 0,
592
        .comp = {
593
            {0,1,0,2,4},        /* R */
594
            {0,1,1,5,4},        /* G */
595
            {0,1,1,0,4},        /* B */
596
        },
597
        .flags = PIX_FMT_BE,
598
    },
599
    [PIX_FMT_RGB555LE] = {
600
        .name = "rgb555le",
601
        .nb_components= 3,
602
        .log2_chroma_w= 0,
603
        .log2_chroma_h= 0,
604
        .comp = {
605
            {0,1,2,2,4},        /* R */
606
            {0,1,1,5,4},        /* G */
607
            {0,1,1,0,4},        /* B */
608
        },
609
    },
610
    [PIX_FMT_RGB444BE] = {
611
        .name = "rgb444be",
612
        .nb_components= 3,
613
        .log2_chroma_w= 0,
614
        .log2_chroma_h= 0,
615
        .comp = {
616
            {0,1,0,0,3},        /* R */
617
            {0,1,1,4,3},        /* G */
618
            {0,1,1,0,3},        /* B */
619
        },
620
        .flags = PIX_FMT_BE,
621
    },
622
    [PIX_FMT_RGB444LE] = {
623
        .name = "rgb444le",
624
        .nb_components= 3,
625
        .log2_chroma_w= 0,
626
        .log2_chroma_h= 0,
627
        .comp = {
628
            {0,1,2,0,3},        /* R */
629
            {0,1,1,4,3},        /* G */
630
            {0,1,1,0,3},        /* B */
631
        },
632
    },
633
    [PIX_FMT_BGR48BE] = {
634
        .name = "bgr48be",
635
        .nb_components= 3,
636
        .log2_chroma_w= 0,
637
        .log2_chroma_h= 0,
638
        .comp = {
639
            {0,5,1,0,15},       /* B */
640
            {0,5,3,0,15},       /* G */
641
            {0,5,5,0,15},       /* R */
642
        },
643
        .flags = PIX_FMT_BE,
644
    },
645
    [PIX_FMT_BGR48LE] = {
646
        .name = "bgr48le",
647
        .nb_components= 3,
648
        .log2_chroma_w= 0,
649
        .log2_chroma_h= 0,
650
        .comp = {
651
            {0,5,1,0,15},       /* B */
652
            {0,5,3,0,15},       /* G */
653
            {0,5,5,0,15},       /* R */
654
        },
655
    },
656
    [PIX_FMT_BGR565BE] = {
657
        .name = "bgr565be",
658
        .nb_components= 3,
659
        .log2_chroma_w= 0,
660
        .log2_chroma_h= 0,
661
        .comp = {
662
            {0,1,0,3,4},        /* B */
663
            {0,1,1,5,5},        /* G */
664
            {0,1,1,0,4},        /* R */
665
        },
666
        .flags = PIX_FMT_BE,
667
    },
668
    [PIX_FMT_BGR565LE] = {
669
        .name = "bgr565le",
670
        .nb_components= 3,
671
        .log2_chroma_w= 0,
672
        .log2_chroma_h= 0,
673
        .comp = {
674
            {0,1,2,3,4},        /* B */
675
            {0,1,1,5,5},        /* G */
676
            {0,1,1,0,4},        /* R */
677
        },
678
    },
679
    [PIX_FMT_BGR555BE] = {
680
        .name = "bgr555be",
681
        .nb_components= 3,
682
        .log2_chroma_w= 0,
683
        .log2_chroma_h= 0,
684
        .comp = {
685
            {0,1,0,2,4},       /* B */
686
            {0,1,1,5,4},       /* G */
687
            {0,1,1,0,4},       /* R */
688
        },
689
        .flags = PIX_FMT_BE,
690
     },
691
    [PIX_FMT_BGR555LE] = {
692
        .name = "bgr555le",
693
        .nb_components= 3,
694
        .log2_chroma_w= 0,
695
        .log2_chroma_h= 0,
696
        .comp = {
697
            {0,1,2,2,4},        /* B */
698
            {0,1,1,5,4},        /* G */
699
            {0,1,1,0,4},        /* R */
700
        },
701
    },
702
    [PIX_FMT_BGR444BE] = {
703
        .name = "bgr444be",
704
        .nb_components= 3,
705
        .log2_chroma_w= 0,
706
        .log2_chroma_h= 0,
707
        .comp = {
708
            {0,1,0,0,3},       /* B */
709
            {0,1,1,4,3},       /* G */
710
            {0,1,1,0,3},       /* R */
711
        },
712
        .flags = PIX_FMT_BE,
713
     },
714
    [PIX_FMT_BGR444LE] = {
715
        .name = "bgr444le",
716
        .nb_components= 3,
717
        .log2_chroma_w= 0,
718
        .log2_chroma_h= 0,
719
        .comp = {
720
            {0,1,2,0,3},        /* B */
721
            {0,1,1,4,3},        /* G */
722
            {0,1,1,0,3},        /* R */
723
        },
724
    },
725
    [PIX_FMT_VAAPI_MOCO] = {
726
        .name = "vaapi_moco",
727
        .log2_chroma_w = 1,
728
        .log2_chroma_h = 1,
729
        .flags = PIX_FMT_HWACCEL,
730
    },
731
    [PIX_FMT_VAAPI_IDCT] = {
732
        .name = "vaapi_idct",
733
        .log2_chroma_w = 1,
734
        .log2_chroma_h = 1,
735
        .flags = PIX_FMT_HWACCEL,
736
    },
737
    [PIX_FMT_VAAPI_VLD] = {
738
        .name = "vaapi_vld",
739
        .log2_chroma_w = 1,
740
        .log2_chroma_h = 1,
741
        .flags = PIX_FMT_HWACCEL,
742
    },
743
    [PIX_FMT_YUV420P16LE] = {
744
        .name = "yuv420p16le",
745
        .nb_components= 3,
746
        .log2_chroma_w= 1,
747
        .log2_chroma_h= 1,
748
        .comp = {
749
            {0,1,1,0,15},        /* Y */
750
            {1,1,1,0,15},        /* U */
751
            {2,1,1,0,15},        /* V */
752
        },
753
    },
754
    [PIX_FMT_YUV420P16BE] = {
755
        .name = "yuv420p16be",
756
        .nb_components= 3,
757
        .log2_chroma_w= 1,
758
        .log2_chroma_h= 1,
759
        .comp = {
760
            {0,1,1,0,15},        /* Y */
761
            {1,1,1,0,15},        /* U */
762
            {2,1,1,0,15},        /* V */
763
        },
764
        .flags = PIX_FMT_BE,
765
    },
766
    [PIX_FMT_YUV422P16LE] = {
767
        .name = "yuv422p16le",
768
        .nb_components= 3,
769
        .log2_chroma_w= 1,
770
        .log2_chroma_h= 0,
771
        .comp = {
772
            {0,1,1,0,15},        /* Y */
773
            {1,1,1,0,15},        /* U */
774
            {2,1,1,0,15},        /* V */
775
        },
776
    },
777
    [PIX_FMT_YUV422P16BE] = {
778
        .name = "yuv422p16be",
779
        .nb_components= 3,
780
        .log2_chroma_w= 1,
781
        .log2_chroma_h= 0,
782
        .comp = {
783
            {0,1,1,0,15},        /* Y */
784
            {1,1,1,0,15},        /* U */
785
            {2,1,1,0,15},        /* V */
786
        },
787
        .flags = PIX_FMT_BE,
788
    },
789
    [PIX_FMT_YUV444P16LE] = {
790
        .name = "yuv444p16le",
791
        .nb_components= 3,
792
        .log2_chroma_w= 0,
793
        .log2_chroma_h= 0,
794
        .comp = {
795
            {0,1,1,0,15},        /* Y */
796
            {1,1,1,0,15},        /* U */
797
            {2,1,1,0,15},        /* V */
798
        },
799
    },
800
    [PIX_FMT_YUV444P16BE] = {
801
        .name = "yuv444p16be",
802
        .nb_components= 3,
803
        .log2_chroma_w= 0,
804
        .log2_chroma_h= 0,
805
        .comp = {
806
            {0,1,1,0,15},        /* Y */
807
            {1,1,1,0,15},        /* U */
808
            {2,1,1,0,15},        /* V */
809
        },
810
        .flags = PIX_FMT_BE,
811
    },
812
    [PIX_FMT_DXVA2_VLD] = {
813
        .name = "dxva2_vld",
814
        .log2_chroma_w = 1,
815
        .log2_chroma_h = 1,
816
        .flags = PIX_FMT_HWACCEL,
817
    },
818
    [PIX_FMT_Y400A] = {
819
        .name = "y400a",
820
        .nb_components= 2,
821
        .comp = {
822
            {0,1,1,0,7},        /* Y */
823
            {0,1,2,0,7},        /* A */
824
        },
825
    },
826
};
827

    
828
static enum PixelFormat get_pix_fmt_internal(const char *name)
829
{
830
    enum PixelFormat pix_fmt;
831

    
832
    for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++)
833
        if (av_pix_fmt_descriptors[pix_fmt].name &&
834
            !strcmp(av_pix_fmt_descriptors[pix_fmt].name, name))
835
            return pix_fmt;
836

    
837
    return PIX_FMT_NONE;
838
}
839

    
840
#if HAVE_BIGENDIAN
841
#   define X_NE(be, le) be
842
#else
843
#   define X_NE(be, le) le
844
#endif
845

    
846
enum PixelFormat av_get_pix_fmt(const char *name)
847
{
848
    enum PixelFormat pix_fmt;
849

    
850
    if (!strcmp(name, "rgb32"))
851
        name = X_NE("argb", "bgra");
852
    else if (!strcmp(name, "bgr32"))
853
        name = X_NE("abgr", "rgba");
854

    
855
    pix_fmt = get_pix_fmt_internal(name);
856
    if (pix_fmt == PIX_FMT_NONE) {
857
        char name2[32];
858

    
859
        snprintf(name2, sizeof(name2), "%s%s", name, X_NE("be", "le"));
860
        pix_fmt = get_pix_fmt_internal(name2);
861
    }
862
    return pix_fmt;
863
}
864

    
865
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
866
{
867
    int c, bits = 0;
868
    int log2_pixels = pixdesc->log2_chroma_w + pixdesc->log2_chroma_h;
869

    
870
    for (c = 0; c < pixdesc->nb_components; c++) {
871
        int s = c==1 || c==2 ? 0 : log2_pixels;
872
        bits += (pixdesc->comp[c].depth_minus1+1) << s;
873
    }
874

    
875
    return bits >> log2_pixels;
876
}
877

    
878
char *av_get_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt)
879
{
880
    /* print header */
881
    if (pix_fmt < 0) {
882
        snprintf (buf, buf_size, "name      " " nb_components" " nb_bits");
883
    } else {
884
        const AVPixFmtDescriptor *pixdesc = &av_pix_fmt_descriptors[pix_fmt];
885
        snprintf(buf, buf_size, "%-11s %7d %10d",
886
                 pixdesc->name, pixdesc->nb_components, av_get_bits_per_pixel(pixdesc));
887
    }
888

    
889
    return buf;
890
}