chasing indexing error

1 files changed, 0 insertions, 247 deletions

diff --git a/ffmpeg/libavcodec/xwddec.c b/ffmpeg/libavcodec/xwddec.c
deleted file mode 100644
index c28e19f..0000000
--- a/ffmpeg/libavcodec/xwddec.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * XWD image format
- *
- * Copyright (c) 2012 Paul B Mahol
- *
- * 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 "libavutil/imgutils.h"
-#include "avcodec.h"
-#include "bytestream.h"
-#include "internal.h"
-#include "xwd.h"
-
-static int xwd_decode_frame(AVCodecContext *avctx, void *data,
-                            int *got_frame, AVPacket *avpkt)
-{
-    AVFrame *p = data;
-    const uint8_t *buf = avpkt->data;
-    int i, ret, buf_size = avpkt->size;
-    uint32_t version, header_size, vclass, ncolors;
-    uint32_t xoffset, be, bpp, lsize, rsize;
-    uint32_t pixformat, pixdepth, bunit, bitorder, bpad;
-    uint32_t rgb[3];
-    uint8_t *ptr;
-    GetByteContext gb;
-
-    if (buf_size < XWD_HEADER_SIZE)
-        return AVERROR_INVALIDDATA;
-
-    bytestream2_init(&gb, buf, buf_size);
-    header_size = bytestream2_get_be32u(&gb);
-
-    version = bytestream2_get_be32u(&gb);
-    if (version != XWD_VERSION) {
-        av_log(avctx, AV_LOG_ERROR, "unsupported version\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (buf_size < header_size || header_size < XWD_HEADER_SIZE) {
-        av_log(avctx, AV_LOG_ERROR, "invalid header size\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    pixformat     = bytestream2_get_be32u(&gb);
-    pixdepth      = bytestream2_get_be32u(&gb);
-    avctx->width  = bytestream2_get_be32u(&gb);
-    avctx->height = bytestream2_get_be32u(&gb);
-    xoffset       = bytestream2_get_be32u(&gb);
-    be            = bytestream2_get_be32u(&gb);
-    bunit         = bytestream2_get_be32u(&gb);
-    bitorder      = bytestream2_get_be32u(&gb);
-    bpad          = bytestream2_get_be32u(&gb);
-    bpp           = bytestream2_get_be32u(&gb);
-    lsize         = bytestream2_get_be32u(&gb);
-    vclass        = bytestream2_get_be32u(&gb);
-    rgb[0]        = bytestream2_get_be32u(&gb);
-    rgb[1]        = bytestream2_get_be32u(&gb);
-    rgb[2]        = bytestream2_get_be32u(&gb);
-    bytestream2_skipu(&gb, 8);
-    ncolors       = bytestream2_get_be32u(&gb);
-    bytestream2_skipu(&gb, header_size - (XWD_HEADER_SIZE - 20));
-
-    av_log(avctx, AV_LOG_DEBUG, "pixformat %d, pixdepth %d, bunit %d, bitorder %d, bpad %d\n",
-           pixformat, pixdepth, bunit, bitorder, bpad);
-    av_log(avctx, AV_LOG_DEBUG, "vclass %d, ncolors %d, bpp %d, be %d, lsize %d, xoffset %d\n",
-           vclass, ncolors, bpp, be, lsize, xoffset);
-    av_log(avctx, AV_LOG_DEBUG, "red %0x, green %0x, blue %0x\n", rgb[0], rgb[1], rgb[2]);
-
-    if (pixformat > XWD_Z_PIXMAP) {
-        av_log(avctx, AV_LOG_ERROR, "invalid pixmap format\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (pixdepth == 0 || pixdepth > 32) {
-        av_log(avctx, AV_LOG_ERROR, "invalid pixmap depth\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (xoffset) {
-        avpriv_request_sample(avctx, "xoffset %d", xoffset);
-        return AVERROR_PATCHWELCOME;
-    }
-
-    if (be > 1) {
-        av_log(avctx, AV_LOG_ERROR, "invalid byte order\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (bitorder > 1) {
-        av_log(avctx, AV_LOG_ERROR, "invalid bitmap bit order\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (bunit != 8 && bunit != 16 && bunit != 32) {
-        av_log(avctx, AV_LOG_ERROR, "invalid bitmap unit\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (bpad != 8 && bpad != 16 && bpad != 32) {
-        av_log(avctx, AV_LOG_ERROR, "invalid bitmap scan-line pad\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (bpp == 0 || bpp > 32) {
-        av_log(avctx, AV_LOG_ERROR, "invalid bits per pixel\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (ncolors > 256) {
-        av_log(avctx, AV_LOG_ERROR, "invalid number of entries in colormap\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if ((ret = av_image_check_size(avctx->width, avctx->height, 0, NULL)) < 0)
-        return ret;
-
-    rsize = FFALIGN(avctx->width * bpp, bpad) / 8;
-    if (lsize < rsize) {
-        av_log(avctx, AV_LOG_ERROR, "invalid bytes per scan-line\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (bytestream2_get_bytes_left(&gb) < ncolors * XWD_CMAP_SIZE + avctx->height * lsize) {
-        av_log(avctx, AV_LOG_ERROR, "input buffer too small\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (pixformat != XWD_Z_PIXMAP) {
-        avpriv_report_missing_feature(avctx, "Pixmap format %d", pixformat);
-        return AVERROR_PATCHWELCOME;
-    }
-
-    avctx->pix_fmt = AV_PIX_FMT_NONE;
-    switch (vclass) {
-    case XWD_STATIC_GRAY:
-    case XWD_GRAY_SCALE:
-        if (bpp != 1 && bpp != 8)
-            return AVERROR_INVALIDDATA;
-        if (pixdepth == 1) {
-            avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;
-        } else if (pixdepth == 8) {
-            avctx->pix_fmt = AV_PIX_FMT_GRAY8;
-        }
-        break;
-    case XWD_STATIC_COLOR:
-    case XWD_PSEUDO_COLOR:
-        if (bpp == 8)
-            avctx->pix_fmt = AV_PIX_FMT_PAL8;
-        break;
-    case XWD_TRUE_COLOR:
-    case XWD_DIRECT_COLOR:
-        if (bpp != 16 && bpp != 24 && bpp != 32)
-            return AVERROR_INVALIDDATA;
-        if (bpp == 16 && pixdepth == 15) {
-            if (rgb[0] == 0x7C00 && rgb[1] == 0x3E0 && rgb[2] == 0x1F)
-                avctx->pix_fmt = be ? AV_PIX_FMT_RGB555BE : AV_PIX_FMT_RGB555LE;
-            else if (rgb[0] == 0x1F && rgb[1] == 0x3E0 && rgb[2] == 0x7C00)
-                avctx->pix_fmt = be ? AV_PIX_FMT_BGR555BE : AV_PIX_FMT_BGR555LE;
-        } else if (bpp == 16 && pixdepth == 16) {
-            if (rgb[0] == 0xF800 && rgb[1] == 0x7E0 && rgb[2] == 0x1F)
-                avctx->pix_fmt = be ? AV_PIX_FMT_RGB565BE : AV_PIX_FMT_RGB565LE;
-            else if (rgb[0] == 0x1F && rgb[1] == 0x7E0 && rgb[2] == 0xF800)
-                avctx->pix_fmt = be ? AV_PIX_FMT_BGR565BE : AV_PIX_FMT_BGR565LE;
-        } else if (bpp == 24) {
-            if (rgb[0] == 0xFF0000 && rgb[1] == 0xFF00 && rgb[2] == 0xFF)
-                avctx->pix_fmt = be ? AV_PIX_FMT_RGB24 : AV_PIX_FMT_BGR24;
-            else if (rgb[0] == 0xFF && rgb[1] == 0xFF00 && rgb[2] == 0xFF0000)
-                avctx->pix_fmt = be ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_RGB24;
-        } else if (bpp == 32) {
-            if (rgb[0] == 0xFF0000 && rgb[1] == 0xFF00 && rgb[2] == 0xFF)
-                avctx->pix_fmt = be ? AV_PIX_FMT_ARGB : AV_PIX_FMT_BGRA;
-            else if (rgb[0] == 0xFF && rgb[1] == 0xFF00 && rgb[2] == 0xFF0000)
-                avctx->pix_fmt = be ? AV_PIX_FMT_ABGR : AV_PIX_FMT_RGBA;
-        }
-        bytestream2_skipu(&gb, ncolors * XWD_CMAP_SIZE);
-        break;
-    default:
-        av_log(avctx, AV_LOG_ERROR, "invalid visual class\n");
-        return AVERROR_INVALIDDATA;
-    }
-
-    if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
-        avpriv_request_sample(avctx,
-                              "Unknown file: bpp %d, pixdepth %d, vclass %d",
-                              bpp, pixdepth, vclass);
-        return AVERROR_PATCHWELCOME;
-    }
-
-    if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
-        return ret;
-
-    p->key_frame = 1;
-    p->pict_type = AV_PICTURE_TYPE_I;
-
-    if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
-        uint32_t *dst = (uint32_t *)p->data[1];
-        uint8_t red, green, blue;
-
-        for (i = 0; i < ncolors; i++) {
-
-            bytestream2_skipu(&gb, 4); // skip colormap entry number
-            red    = bytestream2_get_byteu(&gb);
-            bytestream2_skipu(&gb, 1);
-            green  = bytestream2_get_byteu(&gb);
-            bytestream2_skipu(&gb, 1);
-            blue   = bytestream2_get_byteu(&gb);
-            bytestream2_skipu(&gb, 3); // skip bitmask flag and padding
-
-            dst[i] = red << 16 | green << 8 | blue;
-        }
-    }
-
-    ptr = p->data[0];
-    for (i = 0; i < avctx->height; i++) {
-        bytestream2_get_bufferu(&gb, ptr, rsize);
-        bytestream2_skipu(&gb, lsize - rsize);
-        ptr += p->linesize[0];
-    }
-
-    *got_frame       = 1;
-
-    return buf_size;
-}
-
-AVCodec ff_xwd_decoder = {
-    .name           = "xwd",
-    .long_name      = NULL_IF_CONFIG_SMALL("XWD (X Window Dump) image"),
-    .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = AV_CODEC_ID_XWD,
-    .decode         = xwd_decode_frame,
-    .capabilities   = CODEC_CAP_DR1,
-};