[FFmpeg-user] Use force_key_frames to obtain keyframes at exactly the same positions as in the input stream?

[Haris Zukanovic]

Is the decision about exactly which frame to make an IDR frame made in 
x264 or ffmpeg?
Any pointer or advice on where to look for this in the code?


On 4/29/15 8:54 PM, Anatol wrote:
> No responses on that one?
> It is very important issue.
>
> On Mon, Apr 27, 2015 at 11:47 PM, Haris Zukanovic <
> haris.zukanovic74 at gmail.com> wrote:
>
>> Hello,
>> Can I use force_key_frames in some way to produce keyframes (IDR, not
>> I-frames) at exactly the same PTS in output streams as they are found in
>> the live input stream? Both input and output are h264 and live streaming.
>>
>> Something analogous to using 2 pass encoding for VOD and in the second
>> pass keyframes are inserted exactly where they are recorded in the first
>> pass... Is that something like that even theoretically doable for live
>> streaming?
>>
>>
>>
>> thanx
>>
>> --
>> --
>> Haris Zukanovic
>>
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-- 
--
Haris Zukanovic