有一段时间,我一直试图将一个.mp3文件加载到Pydub中,该文件存在于中。这是我的密码
f = io.BytesIO()
storage_client = storage.Client()
bucket_name="my-bucket"
bucket = storage_client.get_bucket(bucket_name)
blob = bucket.blob(file_path)
blob.download_to_file(f)
currentAudio=AudioSegment.from_mp3(f)以下是文件https://storage.cloud.google.com/written-audio-files/10530c70-52af-4ed7-a2ad-146738141b41.mp3的路径
因此,该文件是存在的,而且下载也是正确的。当最后一行
currentAudio=AudioSegment.from_mp3(f) 执行时,我会得到一个FFMPEG错误。
pydub.exceptions.CouldntDecodeError: Decoding failed. ffmpeg returned error code: 1
Output from ffmpeg/avlib:
b'ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers\n built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)\n configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared\n libavutil 55. 78.100 / 55. 78.100\n libavcodec 57.107.100 / 57.107.100\n libavformat 57. 83.100 / 57. 83.100\n libavdevice 57. 10.100 / 57. 10.100\n libavfilter 6.107.100 / 6.107.100\n libavresample 3. 7. 0 / 3. 7. 0\n libswscale 4. 8.100 / 4. 8.100\n libswresample 2. 9.100 / 2. 9.100\n libpostproc 54. 7.100 / 54. 7.100\n[mp3 @ 0x556a1d4c7820] Failed to read frame size: Could not seek to 1026.\npipe:: Invalid argument\n'我认为,当BytesIO对象被赋予函数from_mp3时,它需要一个物理文件,而不是内存中的BytesIO对象。
我在Google函数上执行这个操作,在那里我可能没有任何本地存储空间。另外,保存该文件并从/tmp重新加载该文件将耗费时间。
保存到本地文件系统并重新打开该文件在我的本地计算机上正常工作,我正在本地计算机上测试该程序。我们如何规避这个问题?
** Update **将下载的文件传递给ffmpeg将产生以下输出
ffmpeg -i 10530c70-52af-4ed7-a2ad-146738141b41.mp3 -hide_banner
[mp3 @ 0x561b77222760] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from '10530c70-52af-4ed7-a2ad-146738141b41.mp3':
Duration: 00:00:02.09, start: 0.000000, bitrate: 32 kb/s
Stream #0:0: Audio: mp3, 24000 Hz, mono, s16p, 32 kb/s
At least one output file must be specified发布于 2019-10-25 17:02:15
将文件保存在tmp目录中,然后提供AudioSegment()的路径。
tmpdir=tempfile.gettempdir() # prints the current temporary directory
tempFilePath=tmpdir+"/"+file_path
storage_client = storage.Client()
bucket_name="my-bucket"
bucket = storage_client.get_bucket(bucket_name)
blob = bucket.blob(file_path)
blob.download_to_filename(tempFilePath)
currentAudio=AudioSegment.from_file(tempFilePath, format="mp3")发布于 2019-10-22 16:34:00
我认为您的MP3文件有问题,我不能播放它,FFMPEG对它的文件类型感到困惑:
$ ffmpeg -i 10530c70-52af-4ed7-a2ad-146738141b41.mp3 -hide_banner
[mp3 @ 0x7fa661000000] Format mp3 detected only with low score of 1, misdetection possible!
[mp3 @ 0x7fa661000000] Failed to read frame size: Could not seek to 58401.
10530c70-52af-4ed7-a2ad-146738141b41.mp3: Invalid argumenthttps://stackoverflow.com/questions/58499797
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