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Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
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Unknown input format : 'rawvideo' when trying to save animation
8 juin 2022, par John KlintSo, I get a strange error trying to save animations created with matplotlib.FuncAnimation using FFMpegWriter.


/home/j/PycharmProjects/venvtest/venv/bin/python /home/j/PycharmProjects/venvtest/main.py
MovieWriter stderr:
Unknown input format: 'rawvideo'

Traceback (most recent call last):
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/animation.py", line 234, in saving
 yield self
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/animation.py", line 1093, in save
 writer.grab_frame(**savefig_kwargs)
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/animation.py", line 351, in grab_frame
 self.fig.savefig(self._proc.stdin, format=self.frame_format,
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/figure.py", line 3046, in savefig
 self.canvas.print_figure(fname, **kwargs)
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/backend_bases.py", line 2319, in print_figure
 result = print_method(
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/backend_bases.py", line 1648, in wrapper
 return func(*args, **kwargs)
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/_api/deprecation.py", line 415, in wrapper
 return func(*inner_args, **inner_kwargs)
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/backends/backend_agg.py", line 486, 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 "/home/j/PycharmProjects/venvtest/main.py", line 24, in <module>
 anim.save('basic_animation.mp4', writer=FFwriter)
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/animation.py", line 1093, in save
 writer.grab_frame(**savefig_kwargs)
 File "/usr/lib/python3.9/contextlib.py", line 137, in __exit__
 self.gen.throw(typ, value, traceback)
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/animation.py", line 236, in saving
 self.finish()
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/animation.py", line 342, in finish
 self._cleanup() # Inline _cleanup() once cleanup() is removed.
 File "/home/j/PycharmProjects/venvtest/venv/lib/python3.9/site-packages/matplotlib/animation.py", line 373, in _cleanup
 raise subprocess.CalledProcessError(
subprocess.CalledProcessError: Command '['/usr/bin/ffmpeg', '-f', 'rawvideo', '-vcodec', 'rawvideo', '-s', '640x480', '-pix_fmt', 'rgba', '-r', '5', '-loglevel', 'error', '-i', 'pipe:', '-vcodec', 'h264', '-pix_fmt', 'yuv420p', '-y', 'basic_animation.mp4']' returned non-zero exit status 1.

Process finished with exit code 1
</module>

I am confident it has nothing to do with the animation data, the error occurs even when I create a simple test animation :


import numpy as np
from matplotlib import pyplot as plt
from matplotlib import animation
# plt.rcParams['animation.ffmpeg_path'] = '/usr/bin/ffmpeg'

fig = plt.figure()
ax = plt.axes(xlim=(0, 2), ylim=(-2, 2))
line, = ax.plot([], [], lw=2)


def init():
 line.set_data([], [])
 return line,


def animate(i):
 x = np.linspace(0, 2, 1000)
 y = np.sin(2 * np.pi * (x - 0.01 * i))
 line.set_data(x, y)
 return line,


anim = animation.FuncAnimation(fig, animate, init_func=init,
 frames=200, interval=20, blit=True)

FFwriter = animation.FFMpegWriter()
anim.save('basic_animation.mp4', writer=FFwriter)


I am currently using PyCharm in LinuxMint and I have a fairly new version of FFMpeg (4.2.4) installed. Given that FFMpeg complains about 'rawvideo' which as far as I understand it is just a bunch of images in series, it seems unlikely this has anything to do with codecs. If I run ffmpeg -formats, sure enough rawvideo is in the list.


I have tried manually setting plt.rcParams, like in the commented line in the code above, with no success. I have also tried setting up both anaconda and venv environments, but I get the same error.
Annoyingly, I did not have this problem a few months ago when I was using Ubuntu. I have also verified that it works on my friends Ubuntu desktop, using the same simple venv as I set up for myself.


Any ideas ?


EDIT : I use the fish shell, if that is relevant...


Well this is peculiar. If I start a terminal from within PyCharm and check supported formats, I get the following :


(venv) ffmpeg -formats
ffmpeg version 4.3.4 Copyright (c) 2000-2021 the FFmpeg developers
 built with gcc 11.3.0 (GCC)
 configuration: --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu --disable-debug --disable-doc --disable-static --enable-optimizations --enable-shared --disable-everything --enable-ffplay --enable-ffprobe --enable-gnutls --enable-libaom --enable-libdav1d --enable-libfdk-aac --enable-libmp3lame --enable-libfontconfig --enable-libfreetype --enable-libopus --enable-libpulse --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-openal --enable-opengl --enable-sdl2 --enable-vulkan --enable-zlib --enable-libv4l2 --enable-libxcb --enable-vdpau --enable-vaapi --enable-encoder='ac3,alac,flac,libfdk_aac,g723_1,mp2,libmp3lame,libopus,libspeex,pcm_alaw,pcm_mulaw,pcm_f32le,pcm_s16be,pcm_s24be,pcm_s16le,pcm_s24le,pcm_s32le,pcm_u8,tta,libvorbis,wavpack,' --enable-encoder='ass,ffv1,libaom_av1,libvpx_vp8,libvpx_vp9,mjpeg_vaapi,rawvideo,theora,vp8_vaapi,libopenh264' --enable-decoder='adpcm_g722,alac,flac,g723_1,g729,libfdk_aac,libopus,libspeex,mp2,mp3,m4a,pcm_alaw,pcm_mulaw,pcm_f16le,pcm_f24le,pcm_f32be,pcm_f32le,pcm_f64be,pcm_f64le,pcm_s16be,pcm_s16be_planar,pcm_s24be,pcm_s16le,pcm_s16le_planar,pcm_s24le,pcm_s24le_planar,pcm_s32le,pcm_s32le_planar,pcm_s64be,pcm_s64le,pcm_s8,pcm_s8_planar,pcm_u8,pcm_u24be,pcm_u24le,pcm_u32be,pcm_u32le,tta,vorbis,wavpack,' --enable-decoder='ass,ffv1,mjpeg,mjpegb,libaom_av1,libdav1d,libvpx_vp8,libvpx_vp9,rawvideo,theora,vp8,vp9,libopenh264' --enable-encoder='bmp,gif,jpegls,png,tiff,webp,' --enable-decoder='bmp,gif,jpegls,png,tiff,webp,' --enable-hwaccel='vp8_vaapi,mjpeg_vaapi,' --enable-parser='aac,ac3,flac,mjpeg,mpegaudio,mpeg4video,opus,vp3,vp8,vp9,vorbis,' --enable-muxer='ac3,ass,flac,g722,gif,matroska,mp3,mpegvideo,rtp,ogg,opus,pcm_s16be,pcm_s16le,wav,webm,' --enable-demuxer='aac,ac3,ass,flac,g722,gif,image_jpeg_pipe,image_png_pipe,image_webp_pipe,matroska,mjpeg,mov,mp3,mpegvideo,ogg,pcm_mulaw,pcm_alaw,pcm_s16be,pcm_s16le,rtp,wav,' --enable-filter='crop,scale,overlay,amix,amerge,aresample,format,aformat,fps,transpose,pad,' --enable-protocol='crypto,file,pipe,rtp,srtp,rtsp,tcp,udp,unix,' --arch=x86_64 --enable-libopenh264
 libavutil 56. 51.100 / 56. 51.100
 libavcodec 58. 91.100 / 58. 91.100
 libavformat 58. 45.100 / 58. 45.100
 libavdevice 58. 10.100 / 58. 10.100
 libavfilter 7. 85.100 / 7. 85.100
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
File formats:
 D. = Demuxing supported
 .E = Muxing supported
 --
 D aac raw ADTS AAC (Advanced Audio Coding)
 DE ac3 raw AC-3
 D alaw PCM A-law
 D asf ASF (Advanced / Active Streaming Format)
 DE ass SSA (SubStation Alpha) subtitle
 DE flac raw FLAC
 DE g722 raw G.722
 DE gif CompuServe Graphics Interchange Format (GIF)
 D jpeg_pipe piped jpeg sequence
 E matroska Matroska
 D matroska,webm Matroska / WebM
 D mjpeg raw MJPEG video
 D mov,mp4,m4a,3gp,3g2,mj2 QuickTime / MOV
 DE mp3 MP3 (MPEG audio layer 3)
 D mpegts MPEG-TS (MPEG-2 Transport Stream)
 D mpegvideo raw MPEG video
 D mulaw PCM mu-law
 DE ogg Ogg
 E opus Ogg Opus
 D png_pipe piped png sequence
 D rm RealMedia
 DE rtp RTP output
 DE s16be PCM signed 16-bit big-endian
 DE s16le PCM signed 16-bit little-endian
 D sdp SDP
 DE wav WAV / WAVE (Waveform Audio)
 E webm WebM
 D webp_pipe piped webp sequence



As is evident, there is no support for 'rawvideo' in the list above ! Very strange indeed, I do not know which ffmpeg this list belongs to, perhaps it is a version integrated into matplotlib's animation class ?


Anyway, if I uncomment the line setting the ffmpeg_path I am back at the old error. I did get it to work however, by changing the path from '/usr/bin/ffmpeg' to '/home/j/.conda/envs/venvtest/bin/ffmpeg'. Then I get the file to run, create the animation and save it. This works for my real files as well, which do not even run that particular conda-environment. They do not recognize or find the ffmpeg I have in /usr/bin though. I have no clue why but at least I have a workaround now.


Final edit :
It is solved. It was flatpak's fault. Lesson is, don't use flatpak (or snap for that matter) to install Pycharm.


-
os.system() returning False for some reason
22 février 2017, par Kendall WeiheI have a rather large program (memory-wise), it’s a neural network with Tensorflow. I’m working with volumetric data. My end goal is to use
ffmpegto create a video through the volume — where each frame is a z-slice. I’ve successfully done this before using theospython library. The code looks like this :videoFile = self.slicesPath + "/0.mp4"
sliceFiles = self.slicesPath + "/%04d.jpg"
os.system("ffmpeg -y -framerate 10 -start_number 0 -i " + sliceFiles + " -vcodec mpeg4 " + videoFile)When I step through this with
pdband I try to execute theos.system()command I get-1as if there were some error.(Pdb) os.system("ffmpeg -y -framerate 10 -start_number 0 -i " + sliceFiles + " -vcodec mpeg4 " + videoFile)
-1So then I printed the two variables...
(Pdb) sliceFiles
'/home/volcart/UnsupervisedResults/HercFragment/VAE/0/1/%04d.jpg'
(Pdb) videoFile
'/home/volcart/UnsupervisedResults/HercFragment/VAE/0/1/0.mp4'Opened up a python console in a new terminal tab, copy and pasted the exact same line of code (with the strings above instead of variable names), and BAM ! it magically works.
Why is this ? It works in a separate python console, it works in bash, but it doesn’t work inside my program (when it is the exact same thing). My only guess is something to do with memory, but I know for certain I am not out of memory... my machine has 64GB and python has no limits.
EDIT
I just tried a
subprocessinstead and got this :(Pdb) subprocess.call("ffmpeg -y -framerate 10 -start_number 0 -i " + sliceFiles + " -vcodec mpeg4 " + videoFile, shell=True)
*** OSError: [Errno 12] Cannot allocate memoryBut how is it unable to allocate memory ? Python doesn’t have memory bounds right ? I have 64GB of memory, and I can execute the
ffmpegcommand outside the program, so something is bounding my program. -
How to Show result after uploaded file in PHP
23 avril 2022, par i0x4rI have a script that uploads the video to a server, everything is correct but there is a problem, after the upload of the video to the server is completed
it shows all the uploaded files in the (uploads) folder as array !


I only want the result of the file I just uploaded, and it doesn't show me the previous files !
I need ffmpeg to improve video quality


index.php


<?php
//index.php

?>


 
 
 
 <code class="echappe-js"><script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
 
<script src="https://cdnjs.cloudflare.com/ajax/libs/dropzone/5.5.1/dropzone.js"></script>
 
 
 



 
 
 








 



<script>&#xA;&#xA;$(document).ready(function(){&#xA; &#xA; Dropzone.options.dropzoneFrom = {&#xA; autoProcessQueue: true,&#xA; timeout: 300000,&#xA; acceptedFiles:"video/*",&#xA; init: function(){&#xA; var submitButton = document.querySelector(&#x27;#submit-all&#x27;);&#xA; myDropzone = this;&#xA; submitButton.addEventListener("click", function(){&#xA; myDropzone.processQueue();&#xA; });&#xA; this.on("complete", function(){&#xA; if(this.getQueuedFiles().length == 0 &amp;&amp; this.getUploadingFiles().length == 0)&#xA; {&#xA; var _this = this;&#xA; _this.removeAllFiles();&#xA; }&#xA; list_image();&#xA; });&#xA; },&#xA; };&#xA;&#xA; list_image();&#xA;&#xA; function list_image()&#xA; {&#xA; $.ajax({&#xA; url:"upload.php",&#xA; success:function(data){&#xA; $("#preview").html(data);&#xA; }&#xA; });&#xA; }&#xA;&#xA; $(document).on(&#x27;click&#x27;, &#x27;.remove_image&#x27;, function(){&#xA; var name = $(this).attr(&#x27;id&#x27;);&#xA; $.ajax({&#xA; url:"upload.php",&#xA; method:"POST",&#xA; data:{name:name},&#xA; success:function(data)&#xA; {&#xA; list_image();&#xA; }&#xA; })&#xA; });&#xA; &#xA;});&#xA;</script>


upload.php


<?php

//upload.php

$folder_name = 'upload/';
$tumb_name = 'thumb/';
$imageext = '.png';

if(!empty($_FILES))
{

 $temp_file = $_FILES['file']['tmp_name'];
 $location = $folder_name . $_FILES['file']['name'];
 move_uploaded_file($temp_file, $location);
 $upload = $_FILES['file']['name'];
 $uploadStr = str_replace(" ", "\ ",$upload);
 $locationStr = str_replace(" ","\ ",$location);
 $cmd = "ffmpeg -y -i {$locationStr} -ss 00:00:15 -vframes 1 thumb/{$uploadStr}.png 2>&1";
 echo shell_exec($cmd);
}

if(isset($_POST["name"]))
{
 $filename = $folder_name.$_POST["name"];
 $imagename = $thumb_name.$_POST["name"].$imageext;
 unlink($filename);
 unlink($imagename);
}

$result = array();

$files = scandir('upload');

$output = '<div class="row">';

if(false !== $files)
{
 foreach($files as $file)
 {
 if('.' != $file && '..' != $file)
 {
 $output .= '
 <a href="http://stackoverflow.com/view.php?file=&#x27;.$file.&#x27;" target="_blank"> <img src="http://stackoverflow.com/feeds/tag/thumb/&#x27;.$file.&#x27;.png" class="img-thumbnail" width='246' height='138' /></a>
 <button type="button" class="btn btn-link remove_image">Remove</button>
 ';
 }
 }
}
$output .= '</div>';
echo $output;

?>


EDIT :
I put the example on an Array, I don't want it, I just want it to show the downloaded video I just uploaded as a result.


EDIT 2 :
There are some who say type $location and it displays the downloaded file, but this does not work !!!
I just tried more than once and with several uses, there is no display where the text is empty


This is an example of that


<?php

//upload.php

$folder_name = 'upload/';
$tumb_name = 'thumb/';
$imageext = '.png';

if(!empty($_FILES))
{

 $temp_file = $_FILES['file']['tmp_name'];
 $location = $folder_name . $_FILES['file']['name'];
 move_uploaded_file($temp_file, $location);
 $upload = $_FILES['file']['name'];
 $uploadStr = str_replace(" ", "\ ",$upload);
 $locationStr = str_replace(" ","\ ",$location);
 $cmd = "ffmpeg -y -i {$locationStr} -ss 00:00:15 -vframes 1 thumb/{$uploadStr}.png 2>&1";
 echo shell_exec($cmd);
}

if(isset($_POST["name"]))
{
 $filename = $folder_name.$_POST["name"];
 $imagename = $thumb_name.$_POST["name"].$imageext;
 unlink($filename);
 unlink($imagename);
}


$output .= 'Successfly file is "'.$location.'"';
echo $output;

?>


Result : Successfly file is ""
no name file :(


EDIT 3 :


this code upload.php
functions not working


<?php

//upload.php

$folder_name = 'upload/';
$tumb_name = 'thumb/';
$imageext = '.png';

if(!empty($_FILES))
{

 $temp_file = $_FILES['file']['tmp_name'];
 $location = $folder_name . $_FILES['file']['name'];
 move_uploaded_file($temp_file, $location);
 $upload = $_FILES['file']['name'];
 $uploadStr = str_replace(" ", "\ ",$upload);
 $locationStr = str_replace(" ","\ ",$location);
 $cmd = "ffmpeg -y -i {$locationStr} -ss 00:00:15 -vframes 1 thumb/{$uploadStr}.png 2>&1";
 echo shell_exec($cmd);
}


echo "The file " . $location . " has been uploaded";
// not working
echo "<br />";
echo "The file " . $upload . " has been uploaded";
// not working
echo "<br />";
echo "The file " . $uploadStr . " has been uploaded";
// not working
echo "<br />";
echo "The file " . $locationStr . " has been uploaded";
// not working

?>




this error :
[23-Apr-2022 12:31:56 Asia/Riyadh] PHP Notice : Undefined variable : location in /home/prdix/public_html/test/upload.php on line 38


line 38 : echo $location ;


About the developer solution Markus AO


I did the experiment and it is quite good, but dropzone is still missing, because I will upload a large video and the normal upload compresses the video before uploading, here is a picture from my mobile while uploading, but this does not happen with dropzone



I want to implement this in dropzone as well, because this library does not compress the video, but upload it in full size.


Thank you bro.


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