On 1/19/16, wm4 <nfx...@googlemail.com> wrote: > On Tue, 19 Jan 2016 19:00:18 +0100 > Bodecs Bela <bode...@vivanet.hu> wrote: > >> 2016.01.19. 16:53 keltezessel, Carl Eugen Hoyos irta: >> > Bodecs Bela <bodecsb <at> vivanet.hu> writes: >> > >> >> To retain the current behaviour and not to break any >> >> earlier app, a new config parameter has been introduced. >> > Is the current behaviour useful or do you consider it a bug? >> First I thought that it was a bug, but I borrowed an idea from >> vf_overlay filter, where there is a very same config parameter causing a >> very similar behaviour distinction on expression evaluation. >> I will soon post a patch to vf_overlay where there was really a bug in >> this behaviour. > > I think it's actually a bug. From what I can tell libavfilter's design > doesn't actually support mid-stream reconfiguration, although it > happens to work in some cases?
It appears it's undocumented feature. Filter which changes parameters just calls avfilter_config_links(). But not all filter have been tested with this in mind. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel