Failing to decode audio with manually created audio decoder

Overview

I am trying to decode audio packets from a Hikvision camera stream using a AudioCodecContext that was created outside the input container.

I need to manually create the audio decoder as I am sending the packets to another process and I need to decode the packets there instead. I was planning on sending over the parameters of the original decoder and recreating the decoder with those parameters.

Expected behavior

I expect the decoding to proceed successfully.

Actual behavior

An internal BugError is thrown.

Traceback:

Traceback (most recent call last):
  File "/tmp/test.py", line 14, in <module>
    for frame in new_cc.decode(packet):
  File "av/codec/context.pyx", line 450, in av.codec.context.CodecContext.decode
  File "av/codec/context.pyx", line 465, in av.codec.context.CodecContext.decode
  File "av/codec/context.pyx", line 366, in av.codec.context.CodecContext._send_packet_and_recv
  File "av/codec/context.pyx", line 390, in av.codec.context.CodecContext._recv_frame
  File "av/error.pyx", line 326, in av.error.err_check
av.error.BugError: [Errno 558323010] Internal bug, should not have happened

Investigation

Reproduction

import av
from av.audio.format import AudioFormat

container = av.open('./video.avi')

audio_stream = container.streams.audio[0]
original_cc = audio_stream.codec_context
new_cc = av.Codec(original_cc.name).create()
new_cc.format = AudioFormat(original_cc.format.name)
layout = av.AudioLayout(original_cc.layout.name)
new_cc.layout = layout

for packet in container.demux(audio=0):
    for frame in new_cc.decode(packet):
        print('decoded', frame)

A sample video is placed in the zip that is attached to this issue.

Versions

OS: Ubuntu 22.04.4 LTS

PyAV runtime:

PyAV v12.3.0
library configuration: --disable-static --enable-shared --libdir=/tmp/vendor/lib --prefix=/tmp/vendor --disable-alsa --disable-doc --disable-libtheora --disable-mediafoundation --enable-fontconfig --enable-gmp --enable-gnutls --enable-libaom --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libspeex --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxcb --enable-libxml2 --enable-lzma --enable-zlib --enable-version3 --enable-libx264 --disable-libopenh264 --enable-libx265 --enable-gpl
library license: GPL version 3 or later
libavcodec     60. 31.102
libavdevice    60.  3.100
libavfilter     9. 12.100
libavformat    60. 16.100
libavutil      58. 29.100
libswresample   4. 12.100
libswscale      7.  5.100

Research

I have done the following:

[x] Checked the PyAV documentation
[x] Searched on Google
[x] Looked through old GitHub issues

Additional context

The camera is a Hikvision DS-2CD2443G0-I(W) that is using the following parameters for the codecs: Audio:

PCM MU-LAW
Mono
8000 Hz
16 bits per sample Video:
H264
1920x1080
25 fps video.zip

PyAV-Org / PyAV