Add description for RTP streaming format

If a parameter is not specified, that parameter is not edited. An empty line in the file corresponds to

not editing any parameter in the item.

Example files are available in folder /scripts/object_edit.

RTP streaming file

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IVAS supports a simple packing and unpacking for streaming file for the RTP. In this format a single RTP_streaming_packet

contains the length of an RTP packet followed by the actual RTP packet which is recorded as-is. This format is produced

by the encoder when using the -rtpdump switch and the decoder assumes this format in the input when -VOIP_hf_only=1 is set.

typedef struct {

  u_int32 length;                   /* size of the RTP packet in bytes  */

  (u_int8 * length) RTP_packet;     /* RTP packet (sized length * byte) */

} RTP_streaming_packet;