[Libav-user] Direct rendering or avoiding copying locally a decoded AVFrame before rendering
Julian Herrera (TVGenius)
julian.herrera at tvgenius.net
Mon Oct 7 18:34:12 CEST 2013
Hi Paul and wm4,
Thank you for your support. I realised I just needed to activate reference counting, so I set
AVCodecContext->refcounted_frames = 1;
before avcodec_open2() and then it worked! I do not have to copy the decoded frames locally any more so the process is more efficient now.
Thank you again!
On 7 Oct 2013, at 16:55, wm4 <nfxjfg at googlemail.com> wrote:
> On Mon, 7 Oct 2013 15:22:19 +0000
> Paul B Mahol <onemda at gmail.com> wrote:
>> On 10/7/13, Julian Herrera (TVGenius) <julian.herrera at tvgenius.net> wrote:
>>> I do not use reference counting indeed. I could not find an example on the
>>> Internet on how to use it.
> I think he wants to software-decode into a user-provided AVFrame, which
> this code does _not_ do. (It does only for hardware decoding - and for
> old libavcodec versions which didn't have native reference counting
> yet. I guess the hw decoding case could actually be applied to
> software decoding too, but it still doesn't make an ideal example.)
> Anyway, he want to override get_frame2. I'm not sure if that strictly
> _requires_ reference counting, but maybe it's a good idea to use and
> enable it.
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