[FFmpeg-devel] [PATCH] avfilter/src_movie: add various commands

[Hendrik Leppkes]

On Wed, Feb 17, 2016 at 5:05 PM, Michael Niedermayer
<michael at niedermayer.cc> wrote:
> On Wed, Feb 17, 2016 at 04:58:31PM +0100, wm4 wrote:
>> On Wed, 17 Feb 2016 22:55:47 +0700
>> Muhammad Faiz <mfcc64 at gmail.com> wrote:
>>
>> > On Wed, Feb 17, 2016 at 10:20 PM, wm4 <nfxjfg at googlemail.com> wrote:
>> > > On Wed, 17 Feb 2016 21:30:20 +0700
>> > > Muhammad Faiz <mfcc64 at gmail.com> wrote:
> [...]
>> > >
>> > > Possibly it happens to work for you because there are no filters with
>> > > much buffering and you didn't try video.
>> > >
>> > I don't mean that it will be supported by all filters. On filters with
>> > much buffering, probably there will be huge delay between seek command
>> > and their new output pts (It is tolerable). On filters which assume linear
>> > pts, probably it will fail.
>>
>> How is that even a reasonable argument?
>>
>> libavfilter already has enough "works in maybe 10% of all cases"
>> solutions.
>
> mpeg* can contain discontinuities in the timestamps already without
> any seeking
>

Just because there could be discontinuities in some formats doesn't
mean there should be no proper handling of seeking and flushing.
A seek requires a flush on all components involved, thats just the
most basic logic.

- Hendrik