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avcodec/acelp_pitch_delay: Fix runtime error: value 4.83233e+39 is outside the range of representable values of type 'float'

Fixes: 1902/clusterfuzz-testcase-minimized-4762451407011840

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 87bddba43b)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-30 04:03:09 +02:00
parent 343c1d1d7d
commit c82db14411

View File

@ -136,7 +136,7 @@ float ff_amr_set_fixed_gain(float fixed_gain_factor, float fixed_mean_energy,
ff_exp10(0.05 *
(avpriv_scalarproduct_float_c(pred_table, prediction_error, 4) +
energy_mean)) /
sqrtf(fixed_mean_energy);
sqrtf(fixed_mean_energy ? fixed_mean_energy : 1.0);
// update quantified prediction error energy history
memmove(&prediction_error[0], &prediction_error[1],