On Sun, 04. Apr 11:36, Andriy Gelman wrote:
> From: Andriy Gelman <andriy.gel...@gmail.com>
>
> Fixed by setting port offset to zero when it cannot be computed.
>
> To reproduce:
> $ ffmpeg -min_port 32000 -max_port 32001 -i
> rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov -f null -
> [1] 303871 floating point exception (core dumped)
>
> Signed-off-by: Andriy Gelman <andriy.gel...@gmail.com>
> ---
> libavformat/rtsp.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
> index 25bdf475b3..76efbf42cd 100644
> --- a/libavformat/rtsp.c
> +++ b/libavformat/rtsp.c
> @@ -1446,7 +1446,7 @@ int ff_rtsp_make_setup_request(AVFormatContext *s,
> const char *host, int port,
> int lower_transport, const char
> *real_challenge)
> {
> RTSPState *rt = s->priv_data;
> - int rtx = 0, j, i, err, interleave = 0, port_off;
> + int rtx = 0, j, i, err, interleave = 0, port_off = 0;
> RTSPStream *rtsp_st;
> RTSPMessageHeader reply1, *reply = &reply1;
> char cmd[MAX_URL_SIZE];
> @@ -1465,9 +1465,11 @@ int ff_rtsp_make_setup_request(AVFormatContext *s,
> const char *host, int port,
> /* Choose a random starting offset within the first half of the
> * port range, to allow for a number of ports to try even if the offset
> * happens to be at the end of the random range. */
> + if (rt->rtp_port_max - rt->rtp_port_min > 1) {
> port_off = av_get_random_seed() % ((rt->rtp_port_max -
> rt->rtp_port_min)/2);
> /* even random offset */
> port_off -= port_off & 0x01;
> + }
>
> for (j = rt->rtp_port_min + port_off, i = 0; i < rt->nb_rtsp_streams;
> ++i) {
> char transport[MAX_URL_SIZE];
> --
> 2.31.0
>
ping for the set
--
Andriy
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