[Libav-user] avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, &packet) why most of the time frameFinished is zero ?

[cyril poulet]

a packet rarely contains an entire frame. You have to feed the decoder
packets until a frame is finished.
frameFinished is the flag that tells you that a complete frame has been
gathered and decoded, and that you can now work on it


2014-05-26 10:36 GMT+02:00 sithruk sana <get2jils at gmail.com>:

> Dear all,
>
> I received a packet from rtsp by av_read_frame and decode it through
>
>  avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, &packet)
>
> After decoding i am checking  the value of frameFinished.
>
> Most of the time i get the value of frameFinished is zero.  May be around
> 50% of the packet.
>
>
> Can u hint me what could be the reason ?
>
> It is any way related to 'I', 'P', 'B' packet types ?
>
>
>
>
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