It's a bit difficult to put here some code because the application I'm working on is a Java wrapper for Libav. Here is a class responsible for the decoder initialization and a wrapper of codec context for libavcodec 55.x.x:
https://github.com/operutka/jlibav/blob/master/jlibav/src/main/java/org/libav/video/VideoFrameDecoder.java https://github.com/operutka/jlibav/blob/master/jlibav/src/main/java/org/libav/avcodec/CodecContextWrapper55.java The interesting methods are: constructor of the VideoFrameDecoder VideoFrameDecoder.processPacket() CodecContextWrapper55.decodeVideoFrame() It's a bit messy because I've been trying to keep compatibility with all versions of Libav since 0.7. But the initialization is pretty simple, it consist of the following steps: 1) get the codec context from AVStream 2) find AVCodec according to the codec ID (using avcodec_find_decoder()) 3) call avcodec_open2() I'm working on a sample application written in C to reproduce this behaviour. 2014-04-17 10:24 GMT+03:00 Luca Barbato <[email protected]>: > On 16/04/14 19:00, Ondřej Perutka wrote: > > I saved input packets passed to the decoder into a file for all these > > cases. There were absolutely no differences between these files. (Note: > All > > packets had proper 8 byte zero padding in the end of the buffer.) > > > > I found out that setting thread_count in codec context to 1 solves the > > problem. But there are no problems with avplay using multiple threads. > > There are also no problems with previous versions of Libav So is there > > something I should know about thread locking? > > Possibly, is hard to guess w/out seeing the code. > > > I use Libav 10 from tarball and avcodec_decode_video2() for decoding. > > How do you initialize the decoder? > > lu > _______________________________________________ > libav-api mailing list > [email protected] > https://lists.libav.org/mailman/listinfo/libav-api _______________________________________________ libav-api mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-api
