If in compression mode rice_limit = 0 leads to call
`show_bits(gb, k)` in `decode_scalar` with k = 0.
Request a sample in case it is valid and it should be accepted.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
CC: libav-stable@libav.org
int lpc_quant[2];
int rice_history_mult[2];
+ if (!alac->rice_limit) {
+ avpriv_request_sample(alac->avctx,
+ "Compression with rice limit 0");
+ return AVERROR(ENOSYS);
+ }
+
decorr_shift = get_bits(&alac->gb, 8);
decorr_left_weight = get_bits(&alac->gb, 8);