On Mon, Apr 20, 2020 at 07:00:55PM +0800, lance.lmw...@gmail.com wrote: > From: Limin Wang <lance.lmw...@gmail.com> > > Signed-off-by: Limin Wang <lance.lmw...@gmail.com> > --- > libavcodec/utils.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/libavcodec/utils.c b/libavcodec/utils.c > index 26c038dfd9..005d596dfd 100644 > --- a/libavcodec/utils.c > +++ b/libavcodec/utils.c > @@ -2229,8 +2229,8 @@ int64_t ff_guess_coded_bitrate(AVCodecContext *avctx) > const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt); > bits_per_coded_sample = av_get_bits_per_pixel(desc); > } > - bitrate = (int64_t)bits_per_coded_sample * avctx->width * avctx->height * > - framerate.num / framerate.den; > + bitrate = av_rescale(avctx->width * avctx->height, > + bits_per_coded_sample * framerate.num, framerate.den);
why this change ? also bits_per_coded_sample * framerate.num could possibly overflow after this i think thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Nations do behave wisely once they have exhausted all other alternatives. -- Abba Eban
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