On Wed, 27 Aug 2014 19:14:36 +0200 Markus Pfundstein <[email protected]> wrote:
> a frame can consist of several packets. thats why you need to call > av_decode_video2 multiple times until it has a fully decoded frame for you. > the return values tell you how much data was read. > you should adjust packet.data and packet.size by those values. > > there a a lot of examples out there that show this. In libavcodec/libavformat, a packet consists of exactly one frame (and libavformat goes out of its way to guarantee this). But decoding can incur a delay of several frames. That means, at start of decoding you have to feed the decoder several packets without getting a video frame back, and at end of decoding you need to feed it null packets to get the remaining frames. _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
