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avcodec/qdrw: Fix the code which asks for version 1 samples

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The new code only asks for version 1 if its actually version 1 and
prints the version bytes if its something else

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-14 12:25:05 +02:00
parent 5c8e4bf7c4
commit 019daa0775
1 changed files with 8 additions and 2 deletions
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10
libavcodec/qdrw.c
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@ -145,6 +145,7 @@ static int decode_frame(AVCodecContext *avctx,
GetByteContext gbc;
int colors;
int w, h, ret;
int ver;
bytestream2_init(&gbc, avpkt->data, avpkt->size);
if ( bytestream2_get_bytes_left(&gbc) >= 552
@ -153,6 +154,8 @@ static int decode_frame(AVCodecContext *avctx,
)
bytestream2_skip(&gbc, 512);
ver = check_header(gbc.buffer, bytestream2_get_bytes_left(&gbc));
/* smallest PICT header */
if (bytestream2_get_bytes_left(&gbc) < 40) {
av_log(avctx, AV_LOG_ERROR, "Frame is too small %d\n",
@ -170,12 +173,15 @@ static int decode_frame(AVCodecContext *avctx,
/* version 1 is identified by 0x1101
* it uses byte-aligned opcodes rather than word-aligned */
if (bytestream2_get_be32(&gbc) != 0x001102FF) {
if (ver == 1) {
avpriv_request_sample(avctx, "QuickDraw version 1");
return AVERROR_PATCHWELCOME;
} else if (ver != 2) {
avpriv_request_sample(avctx, "QuickDraw version unknown (%X)", bytestream2_get_be32(&gbc));
return AVERROR_PATCHWELCOME;
}
bytestream2_skip(&gbc, 26);
bytestream2_skip(&gbc, 4+26);
while (bytestream2_get_bytes_left(&gbc) >= 4) {
int bppcnt, bpp;