vpx_codec_dec_init: check that the iface is a decoder

Make sure the given interface is actually a decoder interface before
initializing it.

Change-Id: Ie48d737f2956cc2f0891666de5ea87251e96bc49

diff --git a/vpx/src/vpx_decoder.c b/vpx/src/vpx_decoder.c
index fe6ea75..4ffb00d 100644 (file)
--- a/vpx/src/vpx_decoder.c
+++ b/vpx/src/vpx_decoder.c
@@ -36,6 +36,8 @@ vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t      *ctx,
         res = VPX_CODEC_INCAPABLE;
     else if ((flags & VPX_CODEC_USE_POSTPROC) && !(iface->caps & VPX_CODEC_CAP_POSTPROC))
         res = VPX_CODEC_INCAPABLE;
+    else if (!(iface->caps & VPX_CODEC_CAP_DECODER))
+        res = VPX_CODEC_INCAPABLE;
     else
     {
         memset(ctx, 0, sizeof(*ctx));