Ffmpeg run error ffmpeg error see stderr output for detail

Error log:

2021-03-10 07:44:11,114: /home/vishnuji/blog/youtube/views.py:48: DeprecationWarning: Call to deprecated function all (This object can be treated as a list, all() is useless).
2021-03-10 07:44:11,115: stream_all= yt.streams.all()
2021-03-10 07:44:52,483: /home/vishnuji/blog/youtube/views.py:48: DeprecationWarning: Call to deprecated function all (This object can be treated as a list, all() is useless).
2021-03-10 07:44:52,483: stream_all= yt.streams.all()
2021-03-10 07:45:00,251: None
2021-03-10 07:45:00,252: b»ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developersn built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609n configuration: —prefix=/usr —extra-version=0ubuntu0.16.04.1 —build-suffix=-ffmpeg —toolchain=hardened —libdir=/usr/lib/x86_64-linux-gnu —incdir=/usr/include/x86_64-linux-gnu —cc=cc —cxx=g++ —enable-gpl —enable-shared —disable-stripping —disable-decoder=libopenjpeg —disable-decoder=libschroedinger —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-libmodplug —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-librtmp —enable-libschroedinger —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-libxvid —enable-libzvbi —enable-openal —enable-opengl —enable-x11grab —enable-libdc1394 —enable-libiec61883 —enable-libzmq —enable-frei0r —enable-libx264 —enable-libopencvn libavutil 54. 31.100 / 54. 31.100n libavcodec 56. 60.100 / 56. 60.100n libavformat 56. 40.101 / 56. 40.101n libavdevice 56. 4.100 / 56. 4.100n libavfilter 5. 40.101 / 5. 40.101n libavresample 2. 1. 0 / 2. 1. 0n libswscale 3. 1.101 / 3. 1.101n libswresample 1. 2.101 / 1. 2.101n libpostproc 53. 3.100 / 53. 3.100nInput #0, mov,mp4,m4a,3gp,3g2,mj2, from ‘/home/vishnuji/Downloads/audio.mp4’:n Metadata:n major_brand : dashn minor_version : 0n compatible_brands: iso6mp41n creation_time : 2020-01-28 19:11:09n Duration: 00:04:39.71, start: 0.000000, bitrate: 129 kb/sn Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 4 kb/s (default)n Metadata:n creation_time : 2020-01-28 19:11:09n handler_name : ISO Media file produced by Google Inc.nInput #1, mov,mp4,m4a,3gp,3g2,mj2, from ‘/home/vishnuji/Downloads/video.mp4’:n Metadata:n major_brand : mp42n minor_version : 0n compatible_brands: isommp42n creation_time : 2020-01-28 19:00:25n Duration: 00:04:39.71, start: 0.000000, bitrate: 655 kb/sn Stream #1:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 640×360 [SAR 1:1 DAR 16:9], 556 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)n Metadata:n creation_time : 2020-01-28 19:00:25n handler_name : ISO Media file produced by Google Inc. Created on: 01/28/2020.n Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default)n Metadata:n creation_time : 2020-01-28 19:00:25n handler_name : ISO Media file produced by Google Inc. Created on: 01/28/2020.n[aac @ 0x281d840] The encoder ‘aac’ is experimental but experimental codecs are not enabled, add ‘-strict -2’ if you want to use it.n»

Hi guys I have a head ache running this as a service I am really stuck here and have wasted quite the hours here, i am on ubuntu 20 LTS.

I have a celery worker which is waiting for an audio to transform using ffmpeg python library.

If I run it like this:

source venv/bin/activate && Celery -A tasks worker -l info It works without a problem and complete the tasks.

but when I run it as a service in systemd I get this error:

[Errno 20] Not a directory: 'ffmpeg'
                                              Traceback (most recent call last):
                                                File "/home/ubuntu/p1-react-flask-app/app/tasks.py", line 58, in transform_audio_format
                                                  output.run()
                                                File "/home/ubuntu/p1-react-flask-app/app/venv/lib/python3.8/site-packages/ffmpeg/_run.py", line 313, in run
                                                  process = run_async(
                                                File "/home/ubuntu/p1-react-flask-app/app/venv/lib/python3.8/site-packages/ffmpeg/_run.py", line 284, in run_async
                                                  return subprocess.Popen(
                                                File "/usr/lib/python3.8/subprocess.py", line 858, in __init__
                                                  self._execute_child(args, executable, preexec_fn, close_fds,
                                                File "/usr/lib/python3.8/subprocess.py", line 1704, in _execute_child
                                                  raise child_exception_type(errno_num, err_msg, err_filename)
                                              NotADirectoryError: [Errno 20] Not a directory: 'ffmpeg'

I really do not know why and have tried different ways. python os can access the audio folder and files without problem but the problem here, I think, is that my systemd service does not find ffmpeg.exe, but how do I specify it to my service?

My celery config file:

# The names of the workers. This example create one worker
CELERYD_NODES="worker1"

# The name of the Celery App, should be the same as the python file
# where the Celery tasks are defined
CELERY_APP="tasks"

# Log and PID directories
CELERYD_LOG_FILE="/var/log/celery/%n%I.log"
CELERYD_PID_FILE="/var/run/celery/%n.pid"

# Log level
CELERYD_LOG_LEVEL=INFO

# Path to celery binary, that is in your virtual environment
CELERY_BIN=/home/ubuntu/venv/bin/celery

# Options for Celery Beat
CELERYBEAT_PID_FILE="/var/run/celery/beat.pid"
CELERYBEAT_LOG_FILE="/var/log/celery/beat.log"

my celeryd.service:

[Unit]
Description=Celery Service
After=network.target

[Service]
Type=forking
User=ubuntu
Group=ubuntu
EnvironmentFile=/etc/default/celeryd
WorkingDirectory=/home/ubuntu/p1/app
ExecStart=/bin/sh -c '${CELERY_BIN} multi start ${CELERYD_NODES} 
-A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} 
--logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'
ExecStop=/bin/sh -c '${CELERY_BIN} multi stopwait ${CELERYD_NODES} 
--pidfile=${CELERYD_PID_FILE}'
ExecReload=/bin/sh -c '${CELERY_BIN} multi restart ${CELERYD_NODES} 
-A ${CELERY_APP} --pidfile=${CELERYD_PID_FILE} 
--logfile=${CELERYD_LOG_FILE} --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'

[Install]
WantedBy=multi-user.target

My python code:

@app.task
def transform_audio_format(url_original,url_destiny):
    input = ffmpeg.input(url_original)
    
    output = ffmpeg.output(input,url_destiny,shell=True)

    output.run()

any help would be appreciated.

UPDATE:

I added to my .service file:
Environment=»PATH=/home/ubuntu/p1-react-flask-app/app:/usr/local/bin»

but nothing changed.

then I tried with:

Environment=»PATH=/home/ubuntu/p1-react-flask-app/app:/usr/bin»
and got:

ffmpeg error (see stderr output for detail)
                                              Traceback (most        recent call last):
                                                File "/home/ubuntu/p1-react-flask-app/app/tasks.py", line 58, in transform_audio_format
                                                  output.run()
                                                File "/home/ubuntu/p1-react-flask-app/app/venv/lib/python3.8/site-packages/ffmpeg/_run.py", line 325, in run
                                                  raise Error('ffmpeg', out, err)
                                              ffmpeg._run.Error: ffmpeg error (see stderr output for detail)

I do not know what to do.

The following are 6
code examples of ffmpeg.Error().
You can vote up the ones you like or vote down the ones you don’t like,
and go to the original project or source file by following the links above each example.
You may also want to check out all available functions/classes of the module
ffmpeg
, or try the search function

.

Example #1

def test__run__error(mocker, capture_stdout, capture_stderr):
    mocker.patch.object(ffmpeg._run, 'compile', return_value=['ffmpeg'])
    stream = _get_complex_filter_example()
    with pytest.raises(ffmpeg.Error) as excinfo:
        out, err = ffmpeg.run(
            stream, capture_stdout=capture_stdout, capture_stderr=capture_stderr
        )
    assert str(excinfo.value) == 'ffmpeg error (see stderr output for detail)'
    out = excinfo.value.stdout
    err = excinfo.value.stderr
    if capture_stdout:
        assert out == ''.encode()
    else:
        assert out is None
    if capture_stderr:
        assert err.decode().startswith('ffmpeg version')
    else:
        assert err is None 

Example #2

def decode_audio(in_filename, **input_kwargs):
    try:
        out, err = (ffmpeg
            .input(in_filename, **input_kwargs)
            .output('-', format='s16le', acodec='pcm_s16le', ac=1, ar='16k')
            .overwrite_output()
            .run(capture_stdout=True, capture_stderr=True)
        )
    except ffmpeg.Error as e:
        print(e.stderr, file=sys.stderr)
        sys.exit(1)
    return out 

Example #3

def generate_thumbnail(in_filename, out_filename, time, width):
    try:
        (
            ffmpeg
            .input(in_filename, ss=time)
            .filter('scale', width, -1)
            .output(out_filename, vframes=1)
            .overwrite_output()
            .run(capture_stdout=True, capture_stderr=True)
        )
    except ffmpeg.Error as e:
        print(e.stderr.decode(), file=sys.stderr)
        sys.exit(1) 

Example #4

def test__probe__exception():
    with pytest.raises(ffmpeg.Error) as excinfo:
        ffmpeg.probe(BOGUS_INPUT_FILE)
    assert str(excinfo.value) == 'ffprobe error (see stderr output for detail)'
    assert 'No such file or directory'.encode() in excinfo.value.stderr 

Example #5

def normalize_movie(movie_path, fps="24.00", width=None, height=1080):
    """
    Turn movie in a 1080p movie file (or use resolution given in parameter).
    """
    folder_path = os.path.dirname(movie_path)
    file_source_name = os.path.basename(movie_path)
    file_target_name = "%s.mp4" % file_source_name[:-8]
    file_target_path = os.path.join(folder_path, file_target_name)

    (w, h) = get_movie_size(movie_path)
    resize_factor = w / h

    if width is None:
        width = math.floor(resize_factor * height)

    if width % 2 == 1:
        width = width + 1

    if height % 2 == 1:
        height = height + 1

    try:
        stream = ffmpeg.input(movie_path)
        stream = stream.output(
            file_target_path,
            pix_fmt="yuv420p",
            format="mp4",
            r=fps,
            crf="15",
            preset="medium",
            vcodec="libx264",
            s="%sx%s" % (width, height),
        )
        stream.run(quiet=False, capture_stderr=True)
        if not has_soundtrack(file_target_path):
            add_empty_soundtrack(file_target_path)
    except ffmpeg.Error as exc:
        from flask import current_app

        current_app.logger.error(exc.stderr)
        raise

    return file_target_path 

Example #6

def check_file(filename, error_detect='default', strict_level=0, zero_detect=0, ffmpeg_threads=0):
    if sys.version_info[0] < 3:
        filename = filename.decode('utf8')

    file_lowercase = filename.lower()
    file_ext = os.path.splitext(file_lowercase)[1][1:]

    file_size = 'NA'

    try:
        file_size = check_size(filename)
        if zero_detect > 0:
            check_zeros(filename, CONFIG.zero_detect)

        if file_ext in PIL_EXTENSIONS:
            if strict_level in [1, 2]:
                pil_check(filename)
            if strict_level in [0, 2]:
                magick_identify_check(filename)

        if file_ext in PDF_EXTENSIONS:
            if strict_level in [1, 2]:
                pypdf_check(filename)
            if strict_level in [0, 2]:
                magick_identify_check(filename)

        if file_ext in MAGICK_EXTENSIONS:
            if strict_level in [1, 2]:
                magick_check(filename)
            if strict_level in [0, 2]:
                magick_identify_check(filename)

        if file_ext in VIDEO_EXTENSIONS:
            ffmpeg_check(filename, error_detect=error_detect, threads=ffmpeg_threads)

    # except ffmpeg.Error as e:
    #     # print e.stderr
    #     return False, (filename, str(e), file_size)
    except Exception as e:
        # IMHO "Exception" is NOT too broad, io/decode/any problem should be (with details) an image problem
        return False, (filename, str(e), file_size)

    return True, (filename, None, file_size) 

ffmpeg version N-55702-g920046a Copyright (c) 2000-2013 the FFmpeg developers
built on Aug 21 2013 18:10:00 with gcc 4.7.3 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil      52. 42.100 / 52. 42.100
libavcodec     55. 29.100 / 55. 29.100
libavformat    55. 14.101 / 55. 14.101
libavdevice    55.  3.100 / 55.  3.100
libavfilter     3. 82.100 /  3. 82.100
libswscale      2.  5.100 /  2.  5.100
libswresample   0. 17.103 /  0. 17.103
libpostproc    52.  3.100 / 52.  3.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000000000073cb40] Could not find codec parameters for stream 0 (Video: none (av01 / 0x31307661), 2560x1440, 5427 kb/s): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
temp/Above NYC - Filmed in 12K.mp4: could not find codec parameters
Traceback (most recent call last):
  File "C:/Users/Family/PycharmProjects/8-bit Downloader/class_8_bit.py", line 4, in <module>
    ffmpeg.output(v, "temp/hello.mp4").run()
  File "C:UsersFamilyPycharmProjects8-bit Downloadervenvlibsite-packagesffmpeg_run.py", line 325, in run
    raise Error('ffmpeg', out, err)
ffmpeg._run.Error: ffmpeg error (see stderr output for detail)

import ffmpeg

# I have tried passing absolute paths instead of relative ones too, still not working
input_video = ffmpeg.input("temp/Above NYC - Filmed in 12K.mp4")
input_audio = ffmpeg.input("temp/audio_temp 1.webm")
full_path = "temp/New.mp4"
out = ffmpeg.output(input_video, input_audio, full_path, vcodec='copy', acodec='aac', strict='experimental')
out.run(overwrite_output=True)

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