pam: Reject 64bpp rgba.

Fixes ticket #883

pam: Reject 64bpp rgba.
Fixes ticket #883
febf75f3 · ami_stuff · Carl Eugen Hoyos · 09f25a9c · febf75f3
Commit febf75f3 authored Jan 06, 2012 by ami_stuff Committed by Carl Eugen Hoyos Jan 06, 2012
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pnm.c libavcodec/pnm.c +6 -1

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--- a/libavcodec/pnm.c
+++ b/libavcodec/pnm.c
@@ -125,7 +125,12 @@ int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext * const s)
                avctx->pix_fmt = PIX_FMT_RGB48BE;
            }
        } else if (depth == 4) {
-            avctx->pix_fmt = PIX_FMT_RGB32;
+            if (maxval < 256) {
+                avctx->pix_fmt = PIX_FMT_RGB32;
+            } else {
+                av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth\n");
+                return -1;
+            }
        } else {
            return -1;
        }