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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/mpegtsenc: Limit TS invalid messages 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="===============2185847432443014674==" Archived-At: List-Archive: List-Post: --===============2185847432443014674== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="odrVsVrsu+5veKhE" Content-Disposition: inline --odrVsVrsu+5veKhE Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi On Thu, Oct 02, 2025 at 11:36:33PM +0200, David Dominguez via ffmpeg-devel = wrote: > mpegts_write_pes() warns when DTS - PCR is negative. This is > done to detect frames that are late for decoding, meaning that > timestamping is wrong or the muxrate value is insufficient. >=20 > But this comparison only makes sense on the first packet of > the frame. After that the comparison will always be negative > as DTS doesn't change until the next frame, resulting in > hundreds of useless warnings. >=20 > Addtionaly, for long key frames that take several frame periods > to transmity false warnings may be issued if max_delay > is low enough. For example, in low latency CC video. >=20 > Limiting the warning to the start of frame transmission fixes > these issues. This doesnt feel right, the time a frame is decoded has to be after all of its parts are transmitted But there are other people here, who know mpeg-ts much better than i do thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The worst form of inequality is to try to make unequal things equal. -- Aristotle --odrVsVrsu+5veKhE Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEKAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCaOLK9AAKCRBhHseHBAsP q3thAKCXomU6KlhJom9DEjmUqTlvzz10vQCdFoVZQhbjjxYxbuaM7Sp8w+dEjJY= =QloB -----END PGP SIGNATURE----- --odrVsVrsu+5veKhE-- --===============2185847432443014674== 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 --===============2185847432443014674==--