Fixes: CID1503075 Unintentional integer overflow
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
---
libavdevice/pulse_audio_enc.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/libavdevice/pulse_audio_enc.c b/libavdevice/pulse_audio_enc.c
index 3e2cc91f697..80136d1e20c 100644
--- a/libavdevice/pulse_audio_enc.c
+++ b/libavdevice/pulse_audio_enc.c
@@ -471,10 +471,11 @@ static av_cold int pulse_write_header(AVFormatContext *h)
s->nonblocking = (h->flags & AVFMT_FLAG_NONBLOCK);
if (s->buffer_duration) {
- int64_t bytes = s->buffer_duration;
- bytes *= st->codecpar->ch_layout.nb_channels *
st->codecpar->sample_rate *
- av_get_bytes_per_sample(st->codecpar->format);
- bytes /= 1000;
+ int64_t bytes = av_rescale(s->buffer_duration,
+ st->codecpar->ch_layout.nb_channels *
+ (int64_t)st->codecpar->sample_rate *
+
av_get_bytes_per_sample(st->codecpar->format),
+ 1000);
buffer_attributes.tlength = FFMAX(s->buffer_size, av_clip64(bytes, 0,
UINT32_MAX - 1));
av_log(s, AV_LOG_DEBUG,
"Buffer duration: %ums recalculated into %"PRId64" bytes
buffer.\n",
--
2.45.1
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