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jvdec: stop reading partial palette

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2012-07-03 11:16:56 +00:00
parent c673a90b0d
commit 1c638cfc25
1 changed files with 2 additions and 2 deletions
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4
libavcodec/jvdec.c
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@ -174,8 +174,8 @@ static int decode_frame(AVCodecContext *avctx,
}
}
if (buf < buf_end) {
for (i = 0; i < AVPALETTE_COUNT && buf + 3 <= buf_end; i++) {
if (buf_end - buf >= AVPALETTE_COUNT * 3) {
for (i = 0; i < AVPALETTE_COUNT; i++) {
uint32_t pal = AV_RB24(buf);
s->palette[i] = 0xFF << 24 | pal << 2 | ((pal >> 4) & 0x30303);
buf += 3;