Package: aacRepair
aacRepair - PyPi, GitHub (short) documentationrepair aac and aacPlus files grabbed from the internetInfoAAC files consist of multiple segments, frames. Each frame has a header and a payload.
Browser gets stuck if AAC file frame is defective and will not start to play or refuse to play next AAC file.
This will stop the entire playlist.
File gets trimmed from head to tail, to remove defective frames.
Cut off byte count is shown in the summary.Command Line$ aacrepair

        Menu "Main"
1 -- Single File aac or aacPlus
2 -- Bulk Repair, Folder
3 -- Exit
Enter your choice: 1Python or sys.path fail; use$ python -m aacrepair.cmdaacrepair Modulebulk repairfrom aacrepair import AacRepair

# 'r' before a string tells the Python interpreter to treat backslashes as a literal (raw) character
aacRepair = AacRepair(r"F:\propaganda-podcasts")
# setter overrides default export path 'F:\propaganda-podcasts\aac_repair' 
aacRepair.set_export_path(r"F:\repaired_foobar")
aacRepair.repair()Instantiate AacRepair class with two possible arguments, mandatory folder path and optional dictionary.No dictionary provided. Folder path is used as list to import files into a dictionary AND store repaired files.A dictionary of files is provided. Folder path is used to store repaired files. (best use on web server)Web ServerEndpoint converts multi-file upload from file storage type to bytestream, uses .read() methodList of files is written to dictionary {file_name_key: file_byte_content_value}web server gets not the file path, only file name - needs path to store repaired filesdictionary {file(n).aac: b'\x65\x66\x67\x00\x10\x00\x00\x00\x04\x00'}files = request.files.getlist('fileUploadAcpRepair')
f_dict = {f: open(f, "rb").read() for f in files if f[-5:] == ".aacp" or f[-4:] == ".aac"}
aacRepair = AacRepair("/home/Kitty/aac_files", f_dict)
aacRepair.repair()File SystemList of files in folder is written to dictionary {file_name_key: file_byte_content_value}aacRepair = AacRepair("/home/Kitty/meow_aac")
aacRepair.set_export_path("/home/Kitty/foo")
aacRepair.repair()single objectheadandtailare used to cut chunks left or right onlyaacRepair = AacRepair()
# converts file path to file content, if object is not of type bytes
rep_object = aacRepair.repair_object(aac_path_or_object, head=None, tail=None)header_aac ModuleUse as input for further aac stream processing or repair.from aacrepair import header_aacheader_aac module example to show all frames with header.header_aac.pull_frame('/home/foo/bar.aac')header_aac dictionary outputheader_aac dictionary output ofheader_info(aac_object, frame_bytes=None, print_out=True)SYNC_WORD_BOOL: True 
MPEG4_BOOL: True 
Layer_BOOL: True 
CRC_16_IS_SET_BOOL: False 
PROFILE_INT: 1 
PROFILE_STR: AAC Main 
SAMPLING_FREQUENCY_INT: 3 
SAMPLING_FREQUENCY_STR: 48000 Hz 
PRIVATE_BIT_BOOL: False 
CHANNEL_CONFIG_INT: 2 
CHANNEL_CONFIG_STR: 2 channels: front-left, front-right 
ORIGINALITY_BOOL: False 
HOME_BOOL: False 
COPYRIGHT_ID_INT: 0 
COPYRIGHT_START_INT: 0 
FRAME_LENGTH_INT: 530 
BIT_RESERVOIR_INT: 2047 
FRAME_NUMBER_INT: 0 
CRC_16: {} 
IS_LAST_FRAME_BOOL: False 
ERROR_STR:  
FRAME_BYTES: b''Bytes======== ======== ======== ======== ======== ======== ======== ======== ========
        1       2       3        4        5        6        7        8        9
   ======== ======== ======== ======== ======== ======== ======== ======== ========
   AAAAAAAA AAAABCCD EEFFFFGH HHIJKLMM MMMMMMMM MMMOOOOO OOOOOOPP QQQQQQQQ QQQQQQQQ
   ======== ======== ======== ======== ======== ======== ======== ======== ========Bit Groups===== ========= ====== ====================================================================================
   Group    Number  Count  Description
   ===== ========= ====== ====================================================================================
   A         0-12    12 	Syncword, all bits 1
   B           13       1 	MPEG Version set 0 is MPEG-4, set 1 MPEG-2
   C        14-15       2 	Layer set to 0
   D           16       1 	[[[ ``Warning`` ]]], set to 1 if there is no CRC and 0 if there is CRC
   E        17-18       2 	Profile, the MPEG-4 Audio Object Type https://en.wikipedia.org/wiki/MPEG-4_Part_3
   F        19-22       4 	MPEG-4 Sampling Frequency  https://wiki.multimedia.cx/index.php/MPEG-4_Audio
   G           23       1 	Private bit set to 0,
   H        24-26       3 	MPEG-4 Channel Configuration https://wiki.multimedia.cx/index.php/MPEG-4_Audio
   I           27       1 	Originality, set 1 originality of audio, else 0
   J           28       1 	Home, set to 1 to signal home usage of the audio, else 0
   K           29       1 	Copyright ID bit
   L           30       1 	Copyright ID start
   M        31-43      13 	Frame length of ADTS frame including headers and CRC check - 1
   O        44-54      11 	Buffer fullness, states the bit-reservoir per frame
   P        55-56       2 	Number of AAC ADTS frame minus 1
   Q        57-72      16 	CRC check
   ===== ========= ====== ====================================================================================pip install""" Linux """
$ pip3 install aacrepair

""" Windows """
> pip install aacrepairUninstallPython user:find the module locationuninstall and then remove remnants$ pip3 show aacrepair$ pip3 uninstall aacrepairLocation: ... /python310/site-packagesWhat's next - contributions welcometry multithread a testmultiprocessing plus multithreading repair, if file count is x (works only on linux)android 'Threading in Worker', make it run