public void write(AVStream av, AVPacket frame) throws IOException { tryWriteHeader(av); Format vf = frame.getFormat(); if (Constants.H264.equalsIgnoreCase(vf.getEncoding())) { writeH264WithStartCode(frame); return; } else if (Constants.AAC.equalsIgnoreCase(vf.getEncoding())) { writeAAC(frame); return; } logger.warn("unsupported format {}", frame.getFormat()); }