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no-senders; approved; loop; banned-address; header-match-ffmpeg-devel.ffmpeg.org-0; header-match-ffmpeg-devel.ffmpeg.org-1; header-match-ffmpeg-devel.ffmpeg.org-2; header-match-ffmpeg-devel.ffmpeg.org-3; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list Reply-To: FFmpeg development discussions and patches Subject: [FFmpeg-devel] Re: [PATCH] avformat/rtpenc: use unsigned type for ssrc option List-Id: FFmpeg development discussions and patches Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: Michael Niedermayer via ffmpeg-devel Cc: Michael Niedermayer Content-Type: multipart/mixed; boundary="===============7821143500012956295==" Archived-At: List-Archive: List-Post: --===============7821143500012956295== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="XOPQWuYBSIZGr29c" Content-Disposition: inline --XOPQWuYBSIZGr29c Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Feb 20, 2026 at 08:24:08PM +0000, NEKO ASAKURA via ffmpeg-devel wro= te: > The ssrc option used AV_OPT_TYPE_INT with range [INT_MIN, INT_MAX], > but the underlying struct field is uint32_t and RFC 3550 defines SSRC > as a 32-bit identifier covering the full [0, UINT32_MAX] range. This > caused ffmpeg to reject any SSRC value above INT_MAX (~2.1 billion), > which is roughly half of all valid values. >=20 > The auto-generated fallback path (av_get_random_seed()) already > returns uint32_t and can produce values above INT_MAX, creating an > inconsistency where the automatic path succeeds but the explicit > -ssrc option rejects the same value. >=20 > Change the option to AV_OPT_TYPE_UINT with range [0, UINT32_MAX] > to match the field type and allow the full identifier space. >=20 > Fixes ticket #9080. >=20 > Signed-off-by: Neko Asakura > --- > libavformat/rtpenc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will be applied as soon as someone approves: https://code.ffmpeg.org/FFmpeg= /FFmpeg/pulls/22302/commits [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The educated differ from the uneducated as much as the living from the dead. -- Aristotle=20 --XOPQWuYBSIZGr29c Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEKAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCaaDiHgAKCRBhHseHBAsP q3V4AJ4ofhBEsIzq8cYTWIa4jo/1CfJmrgCfb/OABRV16111wXU/3q6s5NJGTRA= =ZNFw -----END PGP SIGNATURE----- --XOPQWuYBSIZGr29c-- --===============7821143500012956295== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ffmpeg-devel mailing list -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org --===============7821143500012956295==--