avfilter/asrc_sine: Fix invalid left shift of negative number
by using a multiplication instead. The multiplication can never overflow
an int because the sin-factor is only an int16_t.
Affected the FATE-tests filter-concat and filter-concat-vfr.
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit 55b46902c1
)
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committed by
Andreas Rheinhardt
parent
9f011f0876
commit
da4b64ea02
@ -247,7 +247,7 @@ static int request_frame(AVFilterLink *outlink)
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samples[i] = sine->sin[sine->phi >> (32 - LOG_PERIOD)];
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sine->phi += sine->dphi;
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if (sine->beep_index < sine->beep_length) {
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samples[i] += sine->sin[sine->phi_beep >> (32 - LOG_PERIOD)] << 1;
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samples[i] += sine->sin[sine->phi_beep >> (32 - LOG_PERIOD)] * 2;
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sine->phi_beep += sine->dphi_beep;
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}
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if (++sine->beep_index == sine->beep_period)
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