{
    "pipe_0": {
        "node_0": {
            "node_opts": {
                "node_name"       : "fread",
                "node_type"       : "source",
                "node_uid"        : "source_0",
                "node_parent"     : "none"
            },
            "node_opts_extra": {
                "node_source_uri" : "/userdata/test/test.pcm",
                "node_buff_type"  : 0,
                "node_buff_count" : 4,
                "node_buff_size"  : 2048,
                "node_buff_alloc_type" : "malloc"
            },
            "stream_opts_extra": {
                "opt_samaple_rate": 48000,
                "opt_format"      : "audio:pcm_16",
                "opt_channel"     : 2,
                "opt_channel_layout"  : 3
            },
            "stream_opts": {
                "stream_output"   : "audio:pcm_0"
            }
        },
        "node_1": {
            "node_opts": {
                "node_name"       : "alsa_playback",
                "node_type"       : "sink",
                "node_uid"        : "sink_0",
                "node_parent"     : "resample"
            },
            "node_opts_extra": {
                "node_source_uri" : "hw:1,0"
            },
            "stream_opts": {
                "stream_input"    : "audio:pcm_0",
                "stream_uid"      : "sink:0"
            },
            "stream_opts_extra": {
                "opt_samaple_rate": 48000,
                "opt_format"      : "audio:pcm_16",
                "opt_channel"     : 2,
                "opt_channel_layout"  : 3
            }
        }
    }
}