[x264-devel] hybrid frame source

[YIRAN LI]

2017-01-13 17:33 GMT+11:00 Daniel Tisch <tisch.daniel at gmail.com>:

> You need to use "
> ​​
> b_vfr_input", "i_timebase_num" and "
> ​​
> i_timebase_den" in x264_param_t when you setup the encoder, and use
> "i_pts" in x264_picture_t correctly for the set timebase with each frame
> you push to the encoder.
>
> ​Hi Daniel,

in x264_encoder_open->x264_validate_parameters() I can see​

​    if( !h->param.i_fps_num || !h->param.i_fps_den )
    {
        h->param.i_fps_num = 25;
        h->param.i_fps_den = 1;
    }

if I set
​
b_vfr_input to 1, and set
​
i_timebase_num+den correctly, will the default 25 fps cause output to be 25?

​

> 2017-01-13 6:12 GMT+01:00 YIRAN LI <mrfun.china at gmail.com>:
>
>> 2017-01-13 15:08 GMT+11:00 YIRAN LI <mrfun.china at gmail.com>:
>>
>>> Hi guys,
>>>
>>> I'm trying to convert a sequence of video frames, first half 30 fps,
>>> second half 25 fps. Can X264 encode such frame sequence and output
>>> timestamps same as input.
>>>
>>> I mean if the time stamps of frames sent to x264 is like:
>>>
>>> 0, 0.333, 0.666, 0,999, 1.25, 1,5, 1.75 2.0
>>>
>>> can x264 accept them? will 8 encoded frames be output? will output
>>> frames duration still 0.333, 0.333, 0.333, 0.333 then 0.25, 0.25, 0.25,
>>> 0.25?
>>>
>>> Thanks
>>>
>>
>> ​Hi, just to clarify that I'm not using the x264 command line tool, I'm
>> using the API. I think I can't use force-cfr or -fps, but I also can't set
>> timebase in this case, can I ?​
>>
>>
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>>
>>
>
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