flcoeffs2[pos] should be the log2 of flcoeffs1[pos]. flcoeffs1[0] can be 0 here, thus flcoeffs2[pos] gets set to -inf, causing problems further down.
This seems to have been copied from imc_decode_level_coefficients in commit 4eb4bb3 without updating the position. Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com> --- libavcodec/imc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/imc.c b/libavcodec/imc.c index b062b21..e15ac9c 100644 --- a/libavcodec/imc.c +++ b/libavcodec/imc.c @@ -426,7 +426,7 @@ static void imc_decode_level_coefficients_raw(IMCContext *q, int *levlCoeffBuf, pos = q->coef0_pos; flcoeffs1[pos] = 20000.0 / pow (2, levlCoeffBuf[0] * 0.18945); // 0.18945 = log2(10) * 0.05703125 - flcoeffs2[pos] = log2f(flcoeffs1[0]); + flcoeffs2[pos] = log2f(flcoeffs1[pos]); tmp = flcoeffs1[pos]; tmp2 = flcoeffs2[pos]; -- 2.1.4 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel