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translate.c: Take sampling rate into account when checking codec's buffer size 

Up/down sampling changes the number of samples produced by a translation.
This must be taken into account when checking the codec's buffer size.

ASTERISK-29328

Change-Id: I9aebe2f8788e00321a7f5c47aa97c617f39e9055
This commit is contained in:
Jean Aunis 2021-04-21 13:42:32 +02:00 committed by Jean Aunis - Prescom
parent c43094f1cb
commit 080d0eb72c
1 changed files with 7 additions and 1 deletions
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8
main/translate.c
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@ -408,12 +408,18 @@ static int framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
}
}
if (pvt->t->buffer_samples) { /* do not pass empty frames to callback */
int src_srate = pvt->t->src_codec.sample_rate;
int dst_srate = pvt->t->dst_codec.sample_rate;
ast_assert(src_srate > 0);
if (f->datalen == 0) { /* perform native PLC if available */
/* If the codec has native PLC, then do that */
if (!pvt->t->native_plc)
return 0;
}
if (pvt->samples + f->samples > pvt->t->buffer_samples) {
if (pvt->samples + (f->samples * dst_srate / src_srate) > pvt->t->buffer_samples) {
ast_log(LOG_WARNING, "Out of buffer space\n");
return -1;
}