Re: [FFmpeg-user] No duration with pipe:1 as output

2016-02-08 Thread Robert Nagy
>Not if there are filters that alter the timestamps, nor if the source file > duration is not accurate enough or completely unknown. True, but if that is not the case then it would? In theory it should be possible to make a conservative guess. Would be nice to be able to at least specify it manua

Re: [FFmpeg-user] No duration with pipe:1 as output

2016-02-08 Thread Nicolas George
Le decadi 20 pluviôse, an CCXXIV, Robert Nagy a écrit : > And why is that an issue? It could just pipe out the duration at the start > of the file since it knows the duration from the source file... Not if there are filters that alter the timestamps, nor if the source file duration is not accurate

Re: [FFmpeg-user] No duration with pipe:1 as output

2016-02-08 Thread Robert Nagy
And why is that an issue? It could just pipe out the duration at the start of the file since it knows the duration from the source file... or is it possible to manually specify the duration so that it is written? ___ ffmpeg-user mailing list ffmpeg-user@f

Re: [FFmpeg-user] No duration with pipe:1 as output

2016-02-08 Thread Paul B Mahol
On 2/8/16, Robert Nagy wrote: > When I set "pipe:1" as the output the resulting file always ends up without > a duration in it's metadata/header (ffprobe doesn't find it). > > I'm primarily interested in outputting webm, but I have the same issues > with nut and mkv. > > Is there a way around this

[FFmpeg-user] No duration with pipe:1 as output

2016-02-08 Thread Robert Nagy
When I set "pipe:1" as the output the resulting file always ends up without a duration in it's metadata/header (ffprobe doesn't find it). I'm primarily interested in outputting webm, but I have the same issues with nut and mkv. Is there a way around this? _