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Commit 170c3744 authored by Alice Kuo's avatar Alice Kuo
Browse files

Minor improvement about the tool document and the error msg 

The patch includes
1. Add the document for the ase_handle assignment feature
2. Print "The iso data is empty" as the iso sdu data length is zero, it
could be useful to debug the audio issue

Bug: 204320094
Bug: 150670922
Test: dump ISO data with btsnoop contains the iso sdu data empty issue
Change-Id: Ic0857d0e21a568ecd52c98a15f5820a8161d7a14
parent c35fd28f

system/tools/scripts/dump_le_audio.py

+11 −10
Original line number Diff line number Diff line
@@ -24,17 +24,17 @@ 
#

#

# 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.
@@ -447,7 +447,9 @@ def parse_iso_packet(packet, flags): 
    # 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
@@ -503,8 +505,7 @@ def main(): 
        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()