[FFmpeg-devel] [PATCH v2] avformat/pcm: decrease delay when reading PCM streams.

[Philipp M. Scholl]

On Thu, Feb 15, 2018 at 01:54:17AM +0100, Michael Niedermayer wrote:
[..snip..]
> breaks fate
>
 I was unsure about the ramifications of a changed blocksize. Maybe you can
comment on that?

> 
> [...]
> > --- a/tests/ref/seek/lavf-alaw
> > +++ b/tests/ref/seek/lavf-alaw
> > @@ -1,53 +1,53 @@
> > -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:  1024
> > +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:   128
> >  ret: 0         st:-1 flags:0  ts:-1.000000
> > -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:  1024
> > +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:   128
> >  ret: 0         st:-1 flags:1  ts: 1.894167
> > -ret: 0         st: 0 flags:1 dts: 1.894150 pts: 1.894150 pos:  41766 size:  1024
> > +ret: 0         st: 0 flags:1 dts: 1.894150 pts: 1.894150 pos:  41766 size:   128
> >  ret: 0         st: 0 flags:0  ts: 0.788345
> > -ret: 0         st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos:  17383 size:  1024
> > +ret: 0         st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos:  17383 size:   128
> >  ret: 0         st: 0 flags:1  ts:-0.317506
> > -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:  1024
> > +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:   128
> >  ret: 0         st:-1 flags:0  ts: 2.576668
> >  ret:-EOF
> 
> --- ./tests/ref/seek/lavf-alaw  2018-02-15 01:43:47.387759133 +0100
> +++ tests/data/fate/seek-lavf-alaw      2018-02-15 01:49:09.979762980 +0100
> @@ -1,53 +1,53 @@
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:   128
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:   512
>  ret: 0         st:-1 flags:0  ts:-1.000000
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:   128
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:   512
>  ret: 0         st:-1 flags:1  ts: 1.894167
> -ret: 0         st: 0 flags:1 dts: 1.894150 pts: 1.894150 pos:  41766 size:   128
> +ret: 0         st: 0 flags:1 dts: 1.894150 pts: 1.894150 pos:  41766 size:   512
>  ret: 0         st: 0 flags:0  ts: 0.788345
> -ret: 0         st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos:  17383 size:   128
> +ret: 0         st: 0 flags:1 dts: 0.788345 pts: 0.788345 pos:  17383 size:   512
>  ret: 0         st: 0 flags:1  ts:-0.317506
> -ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:   128
> +ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:      0 size:   512
>  ret: 0         st:-1 flags:0  ts: 2.576668
>  ret:-EOF
> 
> [...]
> -- 
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
> 
> Opposition brings concord. Out of discord comes the fairest harmony.
> -- Heraclitus



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