[Libav-user] Need Help to understand usages of Libavformat.

Paul B Mahol onemda at gmail.com
Thu Sep 8 15:20:09 EEST 2022


On 9/8/22, Rishabh Shak Dwipeey <rishabhshakdwipeey at gmail.com> wrote:
> Hello Team
>
> Any update on this?
>
> Regards,
> Rishabh Shak Dwipeey
>
> On Mon, Sep 5, 2022 at 4:39 PM Rishabh Shak Dwipeey <
> rishabhshakdwipeey at gmail.com> wrote:
>
>> Hello Team
>>
>> I need your help to understand and get a clear view on Libavformat.
>> we are using below command to capture the screen and create movie (screen
>> capturing) file and store locally :-
>>
>> "-f gdigrab -framerate 30 -i desktop -offset_x 10 -offset_y 20
>> -video_size 20x40 -codec x264 output.wmv"
>>
>> Could you please let us know if mov.c which is present in Libavformat
>> library, would be used for above mentioned functionality?

mov by default will store headers needed for proper processing at end of muxing.
So if recording is interrupted the file may be unplayable.

There are probably streaming options for mov but I do not know about it more.

>> Or is there a method "build_open_gop_key_points()" also executing
>> while screen capturing?
>>
>> Many thanks in advance.
>>
>> Regards,
>> Rishabh Shak Dwipeey
>>
>>
>>
>>
>


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