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authorTim Redfern <tim@eclectronics.org>2014-02-17 13:36:38 +0000
committerTim Redfern <tim@eclectronics.org>2014-02-17 13:36:38 +0000
commit22e28216336da876e1fd17f380ce42eaf1446769 (patch)
tree444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/libavcodec/qdrw.c
parentae5e8541f6e06e64c28719467cdf366ac57aff31 (diff)
chasing indexing error
Diffstat (limited to 'ffmpeg/libavcodec/qdrw.c')
-rw-r--r--ffmpeg/libavcodec/qdrw.c151
1 files changed, 0 insertions, 151 deletions
diff --git a/ffmpeg/libavcodec/qdrw.c b/ffmpeg/libavcodec/qdrw.c
deleted file mode 100644
index 3f82e5b..0000000
--- a/ffmpeg/libavcodec/qdrw.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * QuickDraw (qdrw) codec
- * Copyright (c) 2004 Konstantin Shishkov
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * Apple QuickDraw codec.
- */
-
-#include "libavutil/common.h"
-#include "libavutil/intreadwrite.h"
-#include "avcodec.h"
-#include "internal.h"
-
-static int decode_frame(AVCodecContext *avctx,
- void *data, int *got_frame,
- AVPacket *avpkt)
-{
- const uint8_t *buf = avpkt->data;
- const uint8_t *buf_end = avpkt->data + avpkt->size;
- int buf_size = avpkt->size;
- AVFrame * const p = data;
- uint8_t* outdata;
- int colors;
- int i, ret;
- uint32_t *pal;
- int r, g, b;
-
- if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
- return ret;
- p->pict_type = AV_PICTURE_TYPE_I;
- p->key_frame = 1;
-
- outdata = p->data[0];
-
- if (buf_end - buf < 0x68 + 4)
- return AVERROR_INVALIDDATA;
- buf += 0x68; /* jump to palette */
- colors = AV_RB32(buf);
- buf += 4;
-
- if (colors < 0 || colors > 256) {
- av_log(avctx, AV_LOG_ERROR, "Error color count - %i(0x%X)\n", colors, colors);
- return AVERROR_INVALIDDATA;
- }
- if (buf_end - buf < (colors + 1) * 8)
- return AVERROR_INVALIDDATA;
-
- pal = (uint32_t*)p->data[1];
- for (i = 0; i <= colors; i++) {
- unsigned int idx;
- idx = AV_RB16(buf); /* color index */
- buf += 2;
-
- if (idx > 255) {
- av_log(avctx, AV_LOG_ERROR, "Palette index out of range: %u\n", idx);
- buf += 6;
- continue;
- }
- r = *buf++;
- buf++;
- g = *buf++;
- buf++;
- b = *buf++;
- buf++;
- pal[idx] = 0xFFU << 24 | r << 16 | g << 8 | b;
- }
- p->palette_has_changed = 1;
-
- if (buf_end - buf < 18)
- return AVERROR_INVALIDDATA;
- buf += 18; /* skip unneeded data */
- for (i = 0; i < avctx->height; i++) {
- int size, left, code, pix;
- const uint8_t *next;
- uint8_t *out;
- int tsize = 0;
-
- /* decode line */
- out = outdata;
- size = AV_RB16(buf); /* size of packed line */
- buf += 2;
- if (buf_end - buf < size)
- return AVERROR_INVALIDDATA;
-
- left = size;
- next = buf + size;
- while (left > 0) {
- code = *buf++;
- if (code & 0x80 ) { /* run */
- pix = *buf++;
- if ((out + (257 - code)) > (outdata + p->linesize[0]))
- break;
- memset(out, pix, 257 - code);
- out += 257 - code;
- tsize += 257 - code;
- left -= 2;
- } else { /* copy */
- if ((out + code) > (outdata + p->linesize[0]))
- break;
- if (buf_end - buf < code + 1)
- return AVERROR_INVALIDDATA;
- memcpy(out, buf, code + 1);
- out += code + 1;
- buf += code + 1;
- left -= 2 + code;
- tsize += code + 1;
- }
- }
- buf = next;
- outdata += p->linesize[0];
- }
-
- *got_frame = 1;
-
- return buf_size;
-}
-
-static av_cold int decode_init(AVCodecContext *avctx)
-{
- avctx->pix_fmt= AV_PIX_FMT_PAL8;
-
- return 0;
-}
-
-AVCodec ff_qdraw_decoder = {
- .name = "qdraw",
- .long_name = NULL_IF_CONFIG_SMALL("Apple QuickDraw"),
- .type = AVMEDIA_TYPE_VIDEO,
- .id = AV_CODEC_ID_QDRAW,
- .init = decode_init,
- .decode = decode_frame,
- .capabilities = CODEC_CAP_DR1,
-};