Librosa library run fail on Azure Function [Failure Exception: ReadTimeoutError: ffmpeg output]
Librosa library run fail on Azure Function [Failure Exception: ReadTimeoutError: ffmpeg output]
我将 librosa 和 audioread 库 python 函数上传到事件触发器 Azure 函数。一旦我将 m4a 或 ogg 文件上传到 blob，事件触发器将调用 Azure 函数来读取音频文件。但是，它有时工作有时不能。任何人都知道为什么？请帮忙！
我的代码是：
def load_audio(audio_path):
f = audioread.audio_open(audio_path)
audio_info={}
audio_info['channels'] = f.channels
audio_info['samplerate'] = f.samplerate
audio_info['duration'] = f.duration
audio_info['content'] = []
for buf in f:
in_data = np.frombuffer(buf, dtype=np.int16)
audio_info['content'].extend(in_data)
audio_info['content'] = np.array(audio_info['content'])
return audio_info
def main(event: func.EventGridEvent, context: func.Context, bloboutoptimalenf: func.Out[bytes]):
logging.info(f"Python blob trigger function processed blob \n")
a=event.get_json()
url = a['url']
blob_client = BlobClient.from_blob_url(url)
download_steam = blob_client.download_blob()
logging.info('audio_finish+load')
with open(os.path.join(tempfile.gettempdir(),'input.ogg'),'wb') as thefile:
thefile.write(download_steam.readall())
audio_path = thefile.name
audio_information = load_audio(audio_path)
有时有效，有时显示以下错误：
Result: Failure Exception: ReadTimeoutError: ffmpeg output:
b" Metadata:\n creation_time : 2021-06-21T08:35:04.000000Z\
nStream mapping:\n Stream #0:0 -> #0:0 (aac (native) -> pcm_s16le (native))
\nPress [q] to stop, [?] for help\nOutput #0, s16le, to 'pipe:':
\n Metadata:\n major_brand : mp42\n minor_version : 0\n
compatible_brands: mp42isom\n iTunSMPB : 00000000 00000800 00000084 000000000327637C 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000\n
encoder : Lavf58.20.100\n Stream #0:0(und): Audio: pcm_s16le, 44100 Hz,
mono, s16, 705 kb/s (default)\n Metadata:\n creation_time : 2021-06-21T08:35:04.000000Z\n
encoder : Lavc58.35.100 pcm_s16le\nsize= 8474kB time=00:01:
38.38 bitrate= 705.6kbits/s speed= 196x \rsize= 17108kB
time=00:03:18.62 bitrate= 705.6kbits/s speed= 198x \rsize= 24206kB time=00:04:41.03 bitrate= 705.6kbits/s speed= 186x \rsize=
31412kB time=00:06:04.69 bitrate= 705.6kbits/s speed= 181x
\rsize= 39060kB time=00:07:33.48 bitrate= 705.6kbits/s speed= 181x \rsi" Stack: File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker/
dispatcher.py", line 402, in _handle__invocation_request call_result = await self._loop.run_in_executor( File "/usr/local/lib/python3.8
/concurrent/futures/thread.py", line 57, in run result =
self.fn(*self.args, **self.kwargs) File "/azure-functions-host
/workers/python/3.8/LINUX/X64/azure_
functions_worker/dispatcher.py", line 611, in _run_sync_func return ExtensionManager.get_sync_invocation_wrapper(context, File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker
/extension.py", line 215, in _raw_invocation_wrapper result = function(**args) File "/home/site/wwwroot/BlobTriggerbendiforjson/__init__.py",
line 319, in main audio_information = load_audio(audio_path) File "/home/site/wwwroot/BlobTriggerbendiforjson/__init__.py"
, line 31, in load_audio for buf in f: File "/usr/local/lib/python3.8/site-packages/audioread/ffdec.py", line 204, in read_data raise
ReadTimeoutError('ffmpeg output: {}'.format(
如@bmcfee所说 here :
这不是 librosa 问题 -- 如果文件无法加载，那是因为 audioread 无法对其进行解码。它似乎正在使用 ffmpeg 后端，这意味着（可能）ffmpeg 也无法对其进行解码。该文件本身已损坏。我建议放入一些调试打印以准确追踪导致问题的文件。
所以，这是一个依赖性错误。
我将 librosa 和 audioread 库 python 函数上传到事件触发器 Azure 函数。一旦我将 m4a 或 ogg 文件上传到 blob，事件触发器将调用 Azure 函数来读取音频文件。但是，它有时工作有时不能。任何人都知道为什么？请帮忙！
我的代码是：
def load_audio(audio_path):
f = audioread.audio_open(audio_path)
audio_info={}
audio_info['channels'] = f.channels
audio_info['samplerate'] = f.samplerate
audio_info['duration'] = f.duration
audio_info['content'] = []
for buf in f:
in_data = np.frombuffer(buf, dtype=np.int16)
audio_info['content'].extend(in_data)
audio_info['content'] = np.array(audio_info['content'])
return audio_info
def main(event: func.EventGridEvent, context: func.Context, bloboutoptimalenf: func.Out[bytes]):
logging.info(f"Python blob trigger function processed blob \n")
a=event.get_json()
url = a['url']
blob_client = BlobClient.from_blob_url(url)
download_steam = blob_client.download_blob()
logging.info('audio_finish+load')
with open(os.path.join(tempfile.gettempdir(),'input.ogg'),'wb') as thefile:
thefile.write(download_steam.readall())
audio_path = thefile.name
audio_information = load_audio(audio_path)
有时有效，有时显示以下错误：
Result: Failure Exception: ReadTimeoutError: ffmpeg output:
b" Metadata:\n creation_time : 2021-06-21T08:35:04.000000Z\
nStream mapping:\n Stream #0:0 -> #0:0 (aac (native) -> pcm_s16le (native))
\nPress [q] to stop, [?] for help\nOutput #0, s16le, to 'pipe:':
\n Metadata:\n major_brand : mp42\n minor_version : 0\n
compatible_brands: mp42isom\n iTunSMPB : 00000000 00000800 00000084 000000000327637C 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000\n
encoder : Lavf58.20.100\n Stream #0:0(und): Audio: pcm_s16le, 44100 Hz,
mono, s16, 705 kb/s (default)\n Metadata:\n creation_time : 2021-06-21T08:35:04.000000Z\n
encoder : Lavc58.35.100 pcm_s16le\nsize= 8474kB time=00:01:
38.38 bitrate= 705.6kbits/s speed= 196x \rsize= 17108kB
time=00:03:18.62 bitrate= 705.6kbits/s speed= 198x \rsize= 24206kB time=00:04:41.03 bitrate= 705.6kbits/s speed= 186x \rsize=
31412kB time=00:06:04.69 bitrate= 705.6kbits/s speed= 181x
\rsize= 39060kB time=00:07:33.48 bitrate= 705.6kbits/s speed= 181x \rsi" Stack: File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker/
dispatcher.py", line 402, in _handle__invocation_request call_result = await self._loop.run_in_executor( File "/usr/local/lib/python3.8
/concurrent/futures/thread.py", line 57, in run result =
self.fn(*self.args, **self.kwargs) File "/azure-functions-host
/workers/python/3.8/LINUX/X64/azure_
functions_worker/dispatcher.py", line 611, in _run_sync_func return ExtensionManager.get_sync_invocation_wrapper(context, File "/azure-functions-host/workers/python/3.8/LINUX/X64/azure_functions_worker
/extension.py", line 215, in _raw_invocation_wrapper result = function(**args) File "/home/site/wwwroot/BlobTriggerbendiforjson/__init__.py",
line 319, in main audio_information = load_audio(audio_path) File "/home/site/wwwroot/BlobTriggerbendiforjson/__init__.py"
, line 31, in load_audio for buf in f: File "/usr/local/lib/python3.8/site-packages/audioread/ffdec.py", line 204, in read_data raise
ReadTimeoutError('ffmpeg output: {}'.format(
如@bmcfee所说 here :
这不是 librosa 问题 -- 如果文件无法加载，那是因为 audioread 无法对其进行解码。它似乎正在使用 ffmpeg 后端，这意味着（可能）ffmpeg 也无法对其进行解码。该文件本身已损坏。我建议放入一些调试打印以准确追踪导致问题的文件。
所以，这是一个依赖性错误。