Segfault when using multiple `add_stream()`s

[WyattBlue]

import av
from fractions import Fraction


def copy_video_stream(container):
    input_ = av.open("example.mp4")

    video_stream = container.add_stream("h264", rate=30)
    video_stream.width = input_.streams.video[0].width
    video_stream.height = input_.streams.video[0].height
    video_stream.pix_fmt = "yuv420p"

    for frame in input_.decode(video=0):
        packet = video_stream.encode(frame)
        container.mux(packet)

    input_.close()


def main():
    output_container = av.open("output.mp4", "w")

    copy_video_stream(output_container)  # must be called to trigger segfault

    input_ = av.open("input.wav")
    input_stream = input_.streams.audio[0]

    audio_codec = "aac"
    global_sr = 48000
    assert input_stream.sample_rate == global_sr
    audio_stream = output_container.add_stream(audio_codec, rate=global_sr)
    audio_stream.layout = "stereo"
    audio_stream.format = "fltp"
    audio_stream.time_base = Fraction(1, global_sr)
    assert isinstance(audio_stream, av.audio.AudioStream)

    resampler = av.audio.resampler.AudioResampler(
        format="fltp", layout="stereo", rate=global_sr
    )
    pts = 0
    for frame in input_.decode(audio=0):
        for reframe in resampler.resample(frame):  # SEGFAULT around here
            if reframe.pts is None or reframe.pts == 0:
                reframe.pts = pts
                reframe.time_base = audio_stream.time_base

            for packet in audio_stream.encode(reframe):
                if packet.pts is None or packet.pts == 0:
                    packet.pts = pts
                output_container.mux_one(packet)
            pts += reframe.samples

    print("flushing")
    output_container.mux(audio_stream.encode(None))
    input_.close()
    output_container.close()

main()

tested with PyAV 13.1.0 14.0.0rc1

MacOS Arm:

zsh: segmentation fault  python3 test.py

MacOS Intel:

zsh: floating point exception  python3 test.py

Windows: succeeds, but writes (almost right?) garbage data.