I am successfully using libav to receive the video stream from an RTSP
network source. The point is that I need to syncronize my computer's time
with the video capturing, meaning that I need to know which datetime of my
computer corresponds to the first frame (pts = 0). My API calls are the
following ones:
av_register_all()
avcodec_register_all()
avformat_network_init()
avformat_open_input()
avformat_find_stream_info()
av_read_play()
loop
av_init_packet()
av_read_frame()
[...]
av_free_packet
end loop
With the calls above, I successfully read frames, but I do need to know how
can I know the exact absolute datetime that corresponds to the first frame,
since it has a pts of 0. Maybe I can use a time() function or GetSystemTime
(I am using Windows) between two calls of the above, but do not really know
how libav works. I will appreciate your help,
Kind regards,
--
Dídac Pérez
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