Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Could not export as m4a #755

Closed
ksk0629 opened this issue Sep 17, 2023 · 6 comments · May be fixed by #793
Closed

Could not export as m4a #755

ksk0629 opened this issue Sep 17, 2023 · 6 comments · May be fixed by #793

Comments

@ksk0629
Copy link

ksk0629 commented Sep 17, 2023

Steps to reproduce

  1. Load m4a file.
  2. Export it as m4a file.
from pydub import AudioSegment

input_path = "path/to/input/file.m4a"
audio_data = AudioSegment.from_file(input_path)

output_path = "path/to/output/file.m4a"
audio_data.export(output_path, format="m4a")

Expected behavior

Export an m4a file correctly

Actual behavior

The following error happens.

---------------------------------------------------------------------------
CouldntEncodeError                        Traceback (most recent call last)
Cell In[22], line 4
      1 format = "m4a"
      2 output_path = os.path.join(".", file_name)
----> 4 audio_data.export(output_path, format=format)

File /opt/homebrew/Caskroom/miniforge/base/envs/volume_adjuster/lib/python3.11/site-packages/pydub/audio_segment.py:970, in AudioSegment.export(self, out_f, format, codec, bitrate, parameters, tags, id3v2_version, cover)
    967 log_subprocess_output(p_err)
    969 if p.returncode != 0:
--> 970     raise CouldntEncodeError(
    971         "Encoding failed. ffmpeg/avlib returned error code: {0}\n\nCommand:{1}\n\nOutput from ffmpeg/avlib:\n\n{2}".format(
    972             p.returncode, conversion_command, p_err.decode(errors='ignore') ))
    974 output.seek(0)
    975 out_f.write(output.read())

CouldntEncodeError: Encoding failed. ffmpeg/avlib returned error code: 1

Command:['ffmpeg', '-y', '-f', 'wav', '-i', '/var/folders/ll/szc7m7151ml5z8g80dysyqh00000gn/T/tmpstv6ljpt', '-f', 'm4a', '/var/folders/ll/szc7m7151ml5z8g80dysyqh00000gn/T/tmpxn742nbi']

Output from ffmpeg/avlib:

ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
  built with Apple clang version 14.0.3 (clang-1403.0.22.14.1)
  configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/6.0_1 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon
  libavutil      58.  2.100 / 58.  2.100
  libavcodec     60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter     9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample   4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from '/var/folders/ll/szc7m7151ml5z8g80dysyqh00000gn/T/tmpstv6ljpt':
  Duration: 00:00:03.23, bitrate: 1411 kb/s
  Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s
[NULL @ 0x12ae38720] Requested output format 'm4a' is not a suitable output format
/var/folders/ll/szc7m7151ml5z8g80dysyqh00000gn/T/tmpxn742nbi: Invalid argument

Your System configuration

  • Python version: 3.11.5
  • Pydub version: 0.25.1
  • ffmpeg or avlib?: ffmpeg (installed by homebrew, which I am using Mac M1 OS)
  • ffmpeg/avlib version: 6.0
@zxul767
Copy link

zxul767 commented Nov 15, 2023

You can use the ipod format to export to m4a (see original answer)

@ksk0629
Copy link
Author

ksk0629 commented Nov 26, 2023

Thank you!!! It worked well!

@ksk0629 ksk0629 closed this as completed Nov 26, 2023
@JiesenSun
Copy link

Thank you!!! It worked well!

May I ask how the problem was ultimately resolved

@ksk0629
Copy link
Author

ksk0629 commented Mar 16, 2024

I put ipod as format.

audio_data.export(output_path, format="ipod")

@JiesenSun
Copy link

tks，but The from_file function does not support the m4a format

CouldntDecodeError Traceback (most recent call last)
Cell In[40], line 10
7 audio_path = "audio/londonbridge-practice-3.m4a"
8 format = os.path.basename(audio_path).split(".")[1]
---> 10 match_target_amplitude(audio_path, format)

Cell In[36], line 5, in match_target_amplitude(audio_path, audio_format, target_dBFS)
3 def match_target_amplitude(audio_path, audio_format, target_dBFS=-20):
4 # sound = AudioSegment.from_mp3(audio_path)
----> 5 sound = AudioSegment.from_file(audio_path)
6 change_in_dBFS = target_dBFS - sound.dBFS
7 normalized_sound = sound.apply_gain(change_in_dBFS)

File /opt/anaconda3/envs/solfeggio_env/lib/python3.10/site-packages/pydub/audio_segment.py:773, in AudioSegment.from_file(cls, file, format, codec, parameters, start_second, duration, **kwargs)
771 if close_file:
772 file.close()
--> 773 raise CouldntDecodeError(
774 "Decoding failed. ffmpeg returned error code: {0}\n\nOutput from ffmpeg/avlib:\n\n{1}".format(
775 p.returncode, p_err.decode(errors='ignore') ))
777 p_out = bytearray(p_out)
778 fix_wav_headers(p_out)

CouldntDecodeError: Decoding failed. ffmpeg returned error code: 183

Output from ffmpeg/avlib:

ffmpeg version 6.1.1 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 12.3.0 (conda-forge gcc 12.3.0-5)
configuration: --prefix=/home/conda/feedstock_root/build_artifacts/ffmpeg_1706918361713/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_plac --cc=/home/conda/feedstock_root/build_artifacts/ffmpeg_1706918361713/_build_env/bin/x86_64-conda-linux-gnu-cc --cxx=/home/conda/feedstock_root/build_artifacts/ffmpeg_1706918361713/_build_env/bin/x86_64-conda-linux-gnu-c++ --nm=/home/conda/feedstock_root/build_artifacts/ffmpeg_1706918361713/_build_env/bin/x86_64-conda-linux-gnu-nm --ar=/home/conda/feedstock_root/build_artifacts/ffmpeg_1706918361713/_build_env/bin/x86_64-conda-linux-gnu-ar --disable-doc --disable-openssl --enable-demuxer=dash --enable-hardcoded-tables --enable-libfreetype --enable-libharfbuzz --enable-libfontconfig --enable-libopenh264 --enable-libdav1d --enable-gnutls --enable-libmp3lame --enable-libvpx --enable-libass --enable-pthreads --enable-vaapi --enable-libopenvino --enable-gpl --enable-libx264 --enable-libx265 --enable-libaom --enable-libsvtav1 --enable-libxml2 --enable-pic --enable-shared --disable-static --enable-version3 --enable-zlib --enable-libopus --pkg-config=/home/conda/feedstock_root/build_artifacts/ffmpeg_1706918361713/_build_env/bin/pkg-config
libavutil 58. 29.100 / 58. 29.100
libavcodec 60. 31.102 / 60. 31.102
libavformat 60. 16.100 / 60. 16.100
libavdevice 60. 3.100 / 60. 3.100
libavfilter 9. 12.100 / 9. 12.100
libswscale 7. 5.100 / 7. 5.100
libswresample 4. 12.100 / 4. 12.100
libpostproc 57. 3.100 / 57. 3.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x557992c22bc0] Format mov,mp4,m4a,3gp,3g2,mj2 detected only with low score of 1, misdetection possible!
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x557992c22bc0] moov atom not found
[in#0 @ 0x557992c22a80] Error opening input: Invalid data found when processing input
Error opening input file audio/londonbridge-practice-3.m4a.
Error opening input files: Invalid data found when processing input

@milahu
Copy link

milahu commented May 16, 2024 •
edited
Loading

Requested output format 'm4a' is not a suitable output format

similar error with ffmpeg 6.1.1

$ ffmpeg -y -f wav -i /run/user/1000/tmpt9qeh4tl -f mka /run/user/1000/tmp_fpjg2b6
[AVFormatContext @ 0x1b1dc80] Requested output format 'mka' is not known.

but it works when i remove -f mka and add the output file extension .mka

$ ffmpeg -y -f wav -i /run/user/1000/tmpt9qeh4tl /run/user/1000/tmp_fpjg2b6.mka
Output #0, matroska, to '/run/user/1000/tmp_fpjg2b6.mka':
  Metadata:
    encoder         : Lavf60.16.100
  Stream #0:0: Audio: vorbis (oV[0][0] / 0x566F), 44100 Hz, mono, fltp
    Metadata:
      encoder         : Lavc60.31.102 libvorbis

ffmpeg -muxers shows no mka but matroska, so this works

ffmpeg -y -f wav -i /run/user/1000/tmpt9qeh4tl -f matroska /run/user/1000/tmp_fpjg2b6
wrong fix: use format as output file extension

pydub/audio_segment.py

        #output = NamedTemporaryFile(mode="w+b", delete=False)
        output = NamedTemporaryFile(mode="w+b", delete=False, suffix=f".{format}")

###

        conversion_command.extend([
            #"-f", format, output.name,  # output options (filename last)
            output.name,  # output options (filename last)
        ])

format != extension, see also What are all of the file extensions supported by FFmpeg

but... pydub is unmaintained #389 #444

This was referenced May 17, 2024
Open
Open
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

Successfully merging a pull request may close this issue.

remove default format mp3 milahu/pydub
4 participants
@zxul767 @JiesenSun @milahu @ksk0629