[Libav-user] Can't read packets after seeking

[Gabriele Greco]

>
>
>
>         AVPacket packet;
>
>
In the code that do not works packet is not initialized (this may cause
av_read_frame failure) and you do not unref it when you do not need it
anymore (this may cause a leak but should not be the cause of your problem)

>
>             int64_t packetPts = packet.pts == AV_NOPTS_VALUE ? packet.dts
> : packet.pts;
>
>             qDebug() << "packet Pts " << packetPts << " flags " <<
> packet.flags;
>
>             if (packetPts >= targetPts)
>             {
>

the pts you have here is in this timebase:
pFormatCtx->streams[videoStream]->time_base  , while you are comparing it
with an AV_TIME_BASE_Q timebase.

>
>             err = avcodec_receive_frame(pCodecCtx, pFrame);
>
>

You cannot assume that a single avcodec_receive_frame is enough to get a
viewable frame.

--
Bye,
 Gabry

-- 


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