Fix for not decoding a too small SBC frame

Fix for not decoding a too small SBC frame

[Christian Hoene]

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Hello,

is it for any good that SBC tries to decode a frame even if it is too small
or missing?
Attached you find a patch.

Greetings

 Christian


--------------------------------------------------------
Dr.-Ing. Christian Hoene
Computer Networks and Internet, University of Tübingen
Sand 13, 72076 Tübingen, Germany, Phone +49 7071 2970532
http://net.informatik.uni-tuebingen.de/~hoene



[-- Attachment #2: do_not_decode_frame_that_is_too_small.patch --]
[-- Type: application/octet-stream, Size: 361 bytes --]

diff --git a/sbc/sbc.c b/sbc/sbc.c
index 5411893..263d46a 100644
--- a/sbc/sbc.c
+++ b/sbc/sbc.c
@@ -1196,6 +1196,9 @@ int sbc_decode(sbc_t *sbc, void *input, int input_len, void *output,
 	if (written)
 		*written = 0;
 
+	if (framelen<=0)
+		return framelen;
+
 	samples = sbc_synthesize_audio(&priv->dec_state, &priv->frame);
 
 	ptr = output;