[FFmpeg-user] -movflags faststart revisited

[DopeLabs]

I utilize ffplay a lot for previewing encoding settings.. make you might find it handy as well =]


> On Feb 26, 2017, at 4:49 39PM, Reuben Martin <reuben.m at gmail.com> wrote:
> 
> On Sunday, February 26, 2017 5:44:56 PM CST JD wrote:
>> On Sun, Feb 26, 2017 at 4:07 PM, Cley Faye <cleyfaye at gmail.com> wrote:
>>> 2017-02-26 23:32 GMT+01:00 JD <jd1008 at gmail.com>:
>>>> Are there any flags that will let me playback an unfinished transcode?
>>>> Reason I am asking is that if my various options in the transcode
>>>> command
>>>> did not yield what I like, then I would like to abort the transcode.
>>> 
>>> ​mp4 files will never be playable without "finishing" them. But you can
>>> interrupt the process at anytime with 'q'; that will properly close the
>>> file so you can play it.​
>> 
>> ​Thanks - that is somewhat a panacea, especially if one
>> is not 50% or more into the transcoding - so that issuing
>> a 'q' will not lose too much is only say the transcoding is
>> into 10 minutes of the video.
>> 
>> Now how about ffplay? I mean is/are there options
>> to ffplay that would allow the playing of the unfinsihed
>> mp4 file (without quitting the trancoding)?
>> ​
> 
> Set the output format to flv. You can play flv before it’s finished encoding. 
> If you decide you want to keep it, you can dump the video and audio streams 
> from the flv into an mp4 file. (generally only takes a few seconds).
> 
> -Reuben
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