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26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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Sur d’autres sites (9967)
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ENOENT Error in Node When Calling Ffmpeg binary from Fluent-Ffmpeg Api
7 novembre 2018, par PeterBackground
I am wiring up a firebase function in node. Purpose is to parse an inbound audio clip to a set length. Using ffmpeg and fluent-ffmpeg.
Problem
When the function is triggered in firebase, I am getting ENOENT error when Fluent-Ffmpeg attempts to access the Ffmpeg binary
Firebase Debug Output
Error : Error : spawn
./Cloud/functions/node_modules/ffmpeg-binaries/bin/ffmpeg ENOENT
at exports._errnoException (util.js:1018:11)
at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
at onErrorNT (internal/child_process.js:367:16)
at _combinedTickCallback (internal/process/next_tick.js:80:11)
at process._tickDomainCallback (internal/process/next_tick.js:128:9) code : ’ENOENT’, errno :
’ENOENT’, syscall : ’spawn
./Cloud/functions/node_modules/ffmpeg-binaries/bin/ffmpeg’, path :
’./Cloud/functions/node_modules/ffmpeg-binaries/bin/ffmpeg’,
spawnargs : [ ’-formats’ ]Expected Outcome
Inbound file is downloaded to a temp directory, cropped, and re-uploaded to firebase storage as the cropped file.
Environment
- mac client / firebase storage
- node v8.1.0
- ffmpeg v3.2.2
- fluent-ffmpeg v2.1.2
Code [Updated To Reflect Svenskunganka’s Change. Now Works]
const ffmpeg = require('fluent-ffmpeg');
const PREVIEW_PREFIX = 'preview_';
exports.generatePreviewClip = functions.storage.object('audioFiles').onChange(event => {
//console.log('Times this function has run: ', run++);
const object = event.data; // The Storage object.
const fileBucket = object.bucket; // The Storage bucket that contains the file.
const filePath = object.name; // File path in the bucket.
const contentType = object.contentType; // File content type.
const resourceState = object.resourceState; // The resourceState is 'exists' or 'not_exists' (for file/folder deletions).
const metageneration = object.metageneration; // Number of times metadata has been generated. New objects have a value of 1.
// Exit if this is triggered on a file that is not an audio file.
if (!contentType.startsWith('audio/')) {
console.log('This is not an audio file.');
console.log('This is the file:', filePath);
return;
}
// Get the file name.
const fileName = path.basename(filePath);
console.log('Working with filename', fileName);
// Exit if the file is already an audio clip.
if (fileName.startsWith(PREVIEW_PREFIX)) {
console.log('Already a preview clip.');
return;
}
// Exit if this is a move or deletion event.
if (event.data.resourceState === 'not_exists') {
console.log('This is a deletion event.');
return;
}
// Exit if file exists but is not new and is only being triggered
// because of a metadata change.
if (resourceState === 'exists' && metageneration > 1) {
console.log('This is a metadata change event.');
return;
}
// Download file from bucket.
const bucket = gcs.bucket(fileBucket);
const tempFilePath = path.join(os.tmpdir(), fileName);
return bucket.file(filePath).download({
destination: tempFilePath
}).then(() => {
console.log('Audio file downloaded locally to temp directory', tempFilePath);
var ffmpegPath = require("ffmpeg-binaries").ffmpegPath();
var ffprobePath = require("ffmpeg-binaries").ffprobePath();
// Generate a croped file using ffmpeg.
var command = new ffmpeg(tempFilePath);
command.setFfmpegPath(ffmpegPath);
command.setFfprobePath(ffprobePath);
command
.setStartTime('00:00:03')
.setDuration('10')
.output(tempFilePath)
.on('end', function() {
console.log('Audio Crop Done Successfully');
})
.on('error', function(err)
{
console.log('Error:', err);
}).run();
}).then(() => {
console.log('Preview file created at', tempFilePath);
// We add a 'preview_' prefix to the audio file name. that's how it will appear in firebase.
const previewFileName = PREVIEW_PREFIX + fileName;
console.log('previewFileName is', previewFileName)
const previewFilePath = path.join(path.dirname(filePath), previewFileName);
console.log('previewFilePath is', previewFilePath);
// Uploading the preview file.
return bucket.upload(tempFilePath, {destination: previewFilePath});
// Once the file has been uploaded delete the local file to free up disk space.
}).then(() => fs.unlinkSync(tempFilePath));
// [END audio file generation]
});Contents and Structure of my ffmpeg-binaries/bin Directory
-rwxrwxrwx 1 sherpa staff 24M Dec 10 2016 ffmpeg
-rwxr--r-- 1 sherpa staff 35M Jan 12 2017 ffmpeg.exe
-rwxr--r-- 1 sherpa staff 35M Jan 12 2017 ffplay.exe
-rwxrwxrwx 1 sherpa staff 24M Dec 10 2016 ffprobe
-rwxr--r-- 1 sherpa staff 35M Jan 12 2017 ffprobe.exe
-rwxrwxrwx 1 sherpa staff 22M Dec 10 2016 ffserverThings I Have Tried
- I can execute ffmpeg from the command line
- sudo chmod -R u+x ffmpeg-binaries/
- ffmpeg set in global path
- used ffmpeg.exe binary in setFfmpegPath, got same result
- Error : Error : spawn ./Cloud/functions/node_modules/ffmpeg-binaries/bin/ffmpeg.exe ENOENT
- played with numerous different setFfmpegPath path structures, e.g :
- ./Cloud/functions/node_modules/ffmpeg-binaries/bin/ffmpeg
- node_modules/ffmpeg-binaries/bin/ffmpeg
- ./Cloud/functions/node_modules/ffmpeg-binaries/bin/
Thanks for any suggestions.
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Matplotlib animation MovieWriters fails on Ubuntu 12.04
13 février 2013, par jjwebsterI am attempting to save matplotlib animations to a movie via
ffmpegon Ubuntu 12.04 LTS (32-bit Desktop). Following the matplotlib example, it fails to load the animation writer :AttributeError: 'module' object has no attribute 'writers'(line 15 of the example) :import numpy as np
import matplotlib
matplotlib.use("Agg")
import matplotlib.pyplot as plt
import matplotlib.animation as animation
def update_line(num, data, line):
line.set_data(data[...,:num])
return line,
# Set up formatting for the movie files
Writer = animation.writers['ffmpeg']Via
apt-get, I've tried installing ffmpeg, every codec imaginable, and even tried to compile ffmpeg from source. Nothing works.How do I get
matplotlibto talk to ffmpeg on Ubuntu ? -
CreateComponent(AMFVideoEncoderVCE_AVC) failed with error 36
16 février 2021, par Mitrajeet GolsangiI am working on a matplotlib project and want to save it in a mp4 video format.
I am using the ffmpeg program for converting the animation in a video. This is the code for conversion


# The animation definition

ani = FuncAnimation(figure, my_frame_function, frames=100,
 interval=5, init_func=init, blit=True, repeat=True)


# Path for ffmpeg

plt.rcParams['animation.ffmpeg_path'] = 'C:/ffmpeg/bin/ffmpeg.exe'


# Setting up the writer

Writer = writers['ffmpeg']
writer = Writer(fps=10, metadata=dict(artist='Mitrajeet'), bitrate=None)

# Trying to Save the file
ani.save("test.png", writer=writer) # ---- Error here


After running the file I get this Error


MovieWriter stderr:
[h264_amf @ 00000000004ec840] CreateComponent(AMFVideoEncoderVCE_AVC) failed with error 36
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

Traceback (most recent call last):
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\animation.py", line 251, in saving
 yield self
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\animation.py", line 1161, in save
 writer.grab_frame(**savefig_kwargs)
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\animation.py", line 363, in grab_frame
 self.fig.savefig(self._frame_sink(), format=self.frame_format,
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\figure.py", line 2311, in savefig
 self.canvas.print_figure(fname, **kwargs)
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\backends\backend_qt5agg.py", line 81, in print_figure
 super().print_figure(*args, **kwargs)
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\backend_bases.py", line 2210, in print_figure
 result = print_method(
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\backend_bases.py", line 1639, in wrapper
 return func(*args, **kwargs)
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\backends\backend_agg.py", line 456, in print_raw
 fh.write(renderer.buffer_rgba())
BrokenPipeError: [Errno 32] Broken pipe

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
 File "prime_counting_function.py", line 63, in <module>
 ani.save("D:/PycharmProjects/Math Graphs/Prime Numbers/output/test.png", writer=writer)
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\animation.py", line 1161, in save
 writer.grab_frame(**savefig_kwargs)
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\contextlib.py", line 131, in __exit__
 self.gen.throw(type, value, traceback)
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\animation.py", line 253, in saving
 self.finish()
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\animation.py", line 354, in finish
 self.cleanup()
 File "C:\Users\Admin\AppData\Local\Programs\Python\Python38\lib\site-packages\matplotlib\animation.py", line 390, in cleanup
 raise subprocess.CalledProcessError(
subprocess.CalledProcessError: Command '['C:/ffmpeg/bin/ffmpeg.exe', '-f', 'rawvideo', '-vcodec', 'rawvideo', '-s', '640x480', '-pix_fmt', 'rgba', '-r', '10', '-loglevel', 'error', '-i', 'pipe:', '-vcodec', 'h264', '-pix_fmt', 'yuv420p', '-metadata', 'artist=Mitrajeet', '-y', 'D:/PycharmProjects/Math Graphs/Prime Numbers/output/test.png']' returned non-zero exit status 1.
</module>

So whats wrong here ??


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