[FFmpeg-user] Could not write header for output file #0 (incorrect codec parameters ?):

juan carlos Rebate nerus492 at gmail.com
Thu Jun 23 23:00:58 CEST 2016

2016-06-23 21:40 GMT+02:00 Phil Turmel <philip at turmel.org>:

> On 06/23/2016 11:31 AM, juan carlos Rebate wrote:
> > Does anyone know how I can do to write the header?
> You've been told over and over, pointing at the error messages, that mp4
> won't work for streaming.  It is *not* ffmpeg's problem.  MP4 needs
> information in it's header that isn't available until *after* encoding,
> which is why the encoder needs to *seek* back to the beginning of the
> output file to fill it in.  That's not possible with realtime streams.
> ffmpeg would need to look into the future and provide data describing
> frames that haven't yet been created by your camera to satisfy you.  Let
> us know when you've invented a time machine.
> You've received recommendations for other formats that don't require
> such a header and are therefore real-time streamable.  Pick one.
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according to the standard, html5 the mp4 format is ideal for this purpose,
many companies that previously used flash html5 technology now used in mp4
format, so again I say that is because ffmpeg

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