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-rw-r--r--libavcodec/pnm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/pnm.c b/libavcodec/pnm.c
index 63b77cd807..502e550097 100644
--- a/libavcodec/pnm.c
+++ b/libavcodec/pnm.c
@@ -63,9 +63,9 @@ int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext * const s)
int h, w, depth, maxval;
pnm_get(s, buf1, sizeof(buf1));
- s->type= buf1[1]-'0';
if(buf1[0] != 'P')
return AVERROR_INVALIDDATA;
+ s->type= buf1[1]-'0';
if (s->type==1 || s->type==4) {
avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;