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chan_dahdi: fix lower bound check with -ve integer conversion from a float

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Lower bound of a 16bit signed int is -32768 not -32767

(closes issue ASTERISK-21744)

Reported by: alecdavis
Tested by: alecdavis
alecdavis (license 585)
........

Merged revisions 387297 from http://svn.asterisk.org/svn/asterisk/branches/1.8


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@387298 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Alec L Davis
2013-05-02 06:54:05 +00:00
parent 6c3f4dd0c6
commit a08c0c7e5d
1 changed files with 24 additions and 12 deletions
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channels/chan_dahdi.c
+24 -12
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@@ -5127,9 +5127,12 @@ static void fill_txgain(struct dahdi_gains *g, float gain, float drc, int law)
if (drc) {
k = drc_sample(k, drc);
}
k = (float)k*linear_gain;
if (k > 32767) k = 32767;
if (k < -32767) k = -32767;
k = (float)k * linear_gain;
if (k > 32767) {
k = 32767;
} else if (k < -32768) {
k = -32768;
}
g->txgain[j] = AST_LIN2A(k);
} else {
g->txgain[j] = j;
@@ -5143,9 +5146,12 @@ static void fill_txgain(struct dahdi_gains *g, float gain, float drc, int law)
if (drc) {
k = drc_sample(k, drc);
}
k = (float)k*linear_gain;
if (k > 32767) k = 32767;
if (k < -32767) k = -32767;
k = (float)k * linear_gain;
if (k > 32767) {
k = 32767;
} else if (k < -32768) {
k = -32768;
}
g->txgain[j] = AST_LIN2MU(k);
} else {
@@ -5170,9 +5176,12 @@ static void fill_rxgain(struct dahdi_gains *g, float gain, float drc, int law)
if (drc) {
k = drc_sample(k, drc);
}
k = (float)k*linear_gain;
if (k > 32767) k = 32767;
if (k < -32767) k = -32767;
k = (float)k * linear_gain;
if (k > 32767) {
k = 32767;
} else if (k < -32768) {
k = -32768;
}
g->rxgain[j] = AST_LIN2A(k);
} else {
g->rxgain[j] = j;
@@ -5186,9 +5195,12 @@ static void fill_rxgain(struct dahdi_gains *g, float gain, float drc, int law)
if (drc) {
k = drc_sample(k, drc);
}
k = (float)k*linear_gain;
if (k > 32767) k = 32767;
if (k < -32767) k = -32767;
k = (float)k * linear_gain;
if (k > 32767) {
k = 32767;
} else if (k < -32768) {
k = -32768;
}
g->rxgain[j] = AST_LIN2MU(k);
} else {
g->rxgain[j] = j;