Hi, i am trying to write a volume control for pvr350 cards for the vdr.
The method gets a buffer in MP2-format (at last i think so) and writes it to the pvr350 card. This is where i want to decode, change volume and then encode the sound back to mp2. But when encoding, i am getting an Segmentation fault error. My libavcodec-dev-Version is 3:0.svn20080206-12ubuntu3.1 from Ubuntu 8.10 Here are some code-snippets: int frame_size = 1024*1024, ac2BufferSize=1024*1024; avcodec_register_all(); decodeContext = avcodec_alloc_context(); encodeContext = avcodec_alloc_context(); samples = new int16_t[frame_size]; ac2Buffer = new uint8_t[ac2BufferSize]; // decoding it. alignedData is the mp2 data // with length Length and of type uint8_t * avcodec_decode_audio2(decodeContext, samples, &curFrameSize, alignedData, Length); // copy parameters from decode to encode context. // Dont know whether this is correct encodeContext->frame_size = decodeContext->frame_size; encodeContext->channels = decodeContext->channels; encodeContext->sample_rate = decodeContext->sample_rate; encodeContext->bit_rate = decodeContext->bit_rate; // and now encode avcodec_encode_audio(encodeContext, ac2Buffer, ac2BufferSize, samples); // Segmentation fault i removed all error-checking code. Is there an obvious error i have done or can somebody help me ? Thanks in advice Rainer Blickle -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger01 _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
