2019-02-07 8:18 GMT+01:00, Jan Ekström <jee...@gmail.com>: > On Thu, Feb 7, 2019, 02:22 Carl Eugen Hoyos <ceffm...@gmail.com wrote: > >> 2019-02-07 0:57 GMT+01:00, Jan Ekström <jee...@gmail.com>: >> > From: Masaki Tanaka <maki.r...@gmail.com> >> > >> > Seems to fix mistaken cases of discontinuity handling in MPEG-TS >> > when program structure changes. >> > >> > Additional changes to patch from its original state by Jan Ekström. >> > --- >> > >> > Had been meaning to post this for comments/discussion for a while, as >> > this seems to make timestamps continuously rising in at least one of >> > my samples where the program structure changes mid-stream. >> > >> > The original version of this patch can be found at: >> > >> https://github.com/jeeb/ffmpeg/commit/6117366eaadbaf48bbd88eb2a353dfc852ff3400 >> > >> > The sample for which this helped is available at: >> > https://kuroko.fushizen.eu/samples/pid_switch_sample.ts >> > >> > The difference of timestamps received from libavformat can be seen with: >> > >> https://kuroko.fushizen.eu/screenshots/ffmpeg/blue_vanilla-orange_patched.png >> >> Am I correct that even with this patch, the sample cannot >> be decoded / played correctly with FFmpeg / FFplay? >> >> No opinion about the patch, just curious, Carl Eugen >> > > Yes, ffmpeg.c at least is static in its stream selection (and probably so > is ffplay.c) so they would ignore the other video stream either before or > after the switch depending on how much you probe and if you do manual > stream selection. > > That said, this is a simple sample (no alternatives, just a clear cut > switch) so -merge_pmt_versions 1 should work for it to get both the sd and > hd parts decoded. This attempts to re-use a previous AVStream when a stream > is removed.
Thank you, I forgot about this switch: The original timestamp issue is not reproducible with -merge_pmt_versions, right? Carl Eugen (who hopes you can use fieldmatch to watch this...) _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
