*bump*
Am 13.12.2015 um 15:23 schrieb Stefan Pöschel: > Am 13.12.2015 um 14:18 schrieb Moritz Barsnick: >> On Sun, Dec 13, 2015 at 11:54:32 +0100, Stefan Pöschel wrote: >>> So far an AC-3 elementary stream is refered to in the PMT according to >>> System A (ATSC). An E-AC-3 ES in contrast is embedded the System B (DVB) >>> way. >> >> Interesting, that's apparently the reason why my (DVB-)PVR didn't ever >> recognize AC-3 in MPEG-TS. See >> https://ffmpeg.org/pipermail/ffmpeg-user/2015-October/028812.html >> E-AC-3 in MPEG-TS seems to have worked (I just tried it - successfully >> - for the first time), I didn't realize that. >> >> With your patch, I can now successfully play AC-3 and E-AC-3 with that >> player, when using the "-mpegts_flags system_b" (and kill this >> capability when not using it). > > I've had the same problem which was the motivation to take a look into it. > >>> To fix this inconsistency, this commit changes the default E-AC-3 behaviour >>> to >>> use the ATSC way, too. Furthermore a new flag is added to optionally select >>> the >>> DVB way (regarding both codecs and possible further differences in the >>> future). >> >> I never found the patch mentioned in the thread, and don't know enough >> about the differences myself. > > There is a bug report of libav regarding this problem, together with a > patch from 2011 which just changes the AC-3 signalling from ATSC to DVB: > https://bugzilla.libav.org/show_bug.cgi?id=73 > > Yesterday I therefore posted a patch to libav-devel (similar to this one > for FFmpeg-devel) for switching between ATSC and DVB: > https://lists.libav.org/pipermail/libav-devel/2015-December/073574.html > > Regards, > Stefan > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
