Merge "Minor improvement about the tool document and the error msg"

#

#

# Usage:

# ./dump_le_audio.py BTSNOOP.cfa

# ./dump_le_audio.py BTSNOOP.cfa [-v] [--header] [--ase_handle ASE_HANDLE]

#

# -v, --verbose to enable the verbose log

# --header, Add the header for LC3 Conformance Interoperability Test Software V.1.0.3 from LC3 test specification.

# -v, --verbose: to enable the verbose log

# --header: Add the header for LC3 Conformance Interoperability Test Software V.1.0.3 from LC3 test specification.

#  --ase_handle ASE_HANDLE: Set the ASE handle manually.

#

# NOTE:

# Please make sure you HCI Snoop data file includes the following frames:

# GATT service discovery for "ASE Control Point" chracteristic

# GATT config codec via ASE Control Point

# HCI create CIS to point out the "Start stream", and the data frames.

# HCI remove ISO data path would trigger dump audio data once

# 1. GATT service discovery for "ASE Control Point" chracteristic (if you give the ase_handle via command, the flow could be skipped)

# 2. GATT config codec via ASE Control Point

# 3. HCI create CIS to point out the "Start stream", and the data frames.

# After all hci packet parse finished, would dump all remain audio data as well

#

# Correspondsing Spec.

    # Ignore timestamp, sequence number

    packet = unpack_data(packet, 6, True)

    iso_sdu_length, packet = unpack_data(packet, 2, False)

    if iso_sdu_length != len(packet):

    if len(packet) == 0:

       debug_print("The iso data is empty")

    elif iso_sdu_length != len(packet):

        debug_print("Invalid iso sdu length")

        return

        help="Add the header for LC3 Conformance Interoperability Test Software V.1.0.3.",

        action="store_true")

    parser.add_argument(

        "--ase_handle",

        help="Set the ASE handle manually.",

        "--ase_handle", help="Set the ASE handle manually.",

        type=int)

    argv = parser.parse_args()