Why are you changing frame rate? There is no way to do what you are trying
to do at this time. After a change to add a no_profile option to the xml
consumer, you will have to serialize to XML using cock values for time and
then deserialize.
On Tue, Mar 14, 2017, 3:09 AM alcinos <french.ebook.lo...@gmail.com> wrote:
> So I tried the following code:
> Profile *profile1 = new Profile();
>
> profile1->set_frame_rate(10,1);
> profile1->set_explicit(true);
>
> Producer producer(*profile1, "small_movie.mp4");
>
> std::cout<<producer.get_playtime()<<std::endl;
>
> profile1->set_frame_rate(15,1);
> std::cout<<producer.get_playtime()<<std::endl;
>
> producer.set_profile(*profile1);
> std::cout<<producer.get_playtime()<<std::endl;
>
>
> I would have expected it to print "10 15 15" or "10 10 15" but instead I
> get "10 10 10", which tends to confirm what Brian pointed out.
> So what's the best way to change profile in that case?
>
> Thanks in advance
>
> 2017-03-13 16:01 GMT+01:00 Brian Matherly <c...@brianmatherly.com>:
>
>
> On 3/13/2017 9:17 AM, alcinos wrote:
>
> Thank you for your answer.
> So if I understand correctly the logic of the code you've linked, if I
> create my objects (filter, consumers, producers) with a pointer to the same
> Profile object, then modifing properties of this profile object (fps, …)
> has the correct side-effects on all the other objects, is that it ? Besides
> stopping the consumer(s), are there any pitfalls I should be aware of ?
>
>
> I expect that you would have some trouble with producers. Some producers
> (e.g. avformat) calculate the length when they are first created. If you
> change the profile to a different frame rate, I'm not sure if the length
> will be re-calculated. You might need to experiment with that.
>
> ~Brian
>
>
>
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