av.codec.codec.UnknownCodecError: libx264

[saba99]

Traceback (most recent call last):
File "/content/drive/MyDrive/dreamtalk/inference_for_demo_video.py", line 230, in
render_video(
File "/usr/local/lib/python3.10/dist-packages/torch/utils/_contextlib.py", line 115, in decorate_context
return func(*args, **kwargs)
File "/content/drive/MyDrive/dreamtalk/generators/utils.py", line 112, in render_video
torchvision.io.write_video(silent_video_path, transformed_imgs.cpu(), fps)
File "/usr/local/lib/python3.10/dist-packages/torchvision/io/video.py", line 91, in write_video
stream = container.add_stream(video_codec, rate=fps)
File "av/container/output.pyx", line 67, in av.container.output.OutputContainer.add_stream
File "av/codec/codec.pyx", line 185, in av.codec.codec.Codec.cinit
File "av/codec/codec.pyx", line 194, in av.codec.codec.Codec._init
av.codec.codec.UnknownCodecError: libx264
Traceback (most recent call last):
File "/usr/local/lib/python3.10/dist-packages/gradio/queueing.py", line 495, in call_prediction
output = await route_utils.call_process_api(
File "/usr/local/lib/python3.10/dist-packages/gradio/route_utils.py", line 232, in call_process_api
output = await app.get_blocks().process_api(
File "/usr/local/lib/python3.10/dist-packages/gradio/blocks.py", line 1561, in process_api
result = await self.call_function(
File "/usr/local/lib/python3.10/dist-packages/gradio/blocks.py", line 1179, in call_function
prediction = await anyio.to_thread.run_sync(
File "/usr/local/lib/python3.10/dist-packages/anyio/to_thread.py", line 33, in run_sync
return await get_asynclib().run_sync_in_worker_thread(
File "/usr/local/lib/python3.10/dist-packages/anyio/_backends/_asyncio.py", line 877, in run_sync_in_worker_thread
return await future
File "/usr/local/lib/python3.10/dist-packages/anyio/_backends/_asyncio.py", line 807, in run
result = context.run(func, *args)
File "/usr/local/lib/python3.10/dist-packages/gradio/utils.py", line 695, in wrapper
response = f(*args, **kwargs)
File "/content/drive/MyDrive/dreamtalk/app.py", line 47, in infer
execute_command(command)
File "/content/drive/MyDrive/dreamtalk/app.py", line 27, in execute_command
subprocess.run(command, check=True)
File "/usr/lib/python3.10/subprocess.py", line 526, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['python', 'inference_for_demo_video.py', '--wav_path=/tmp/gradio/178d11976f94d691ff57dd90a34c7603b4309ea3/acknowledgement_english.wav', '--style_clip_path=data/style_clip/3DMM/M030_fron