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• Python FileNotFoundError : [Errno 2] No such file or directory : 'ffprobe' on Synology

  24 juillet 2022, par Junn Sorran

  I was making a small python 3.8 script to sort photos and videos according to their metadata on my Synology NAS (working on DSM 7.0), overall it works well on ubuntu but it fails on the NAS with this error :

  


  


  FileNotFoundError : [Errno 2] No such file or directory : 'ffprobe'

  


  


  I've been searching everywhere for help on this issue, I saw this post and tried the solutions but I still got the error on any video I try to read metadata from.

  


  ffmpeg is installed and so are ffmpeg-python and ffprobe-python

  


  Here's my test code :

  


  from datetime import datetime
import ffmpeg

name = "VID_20200130_185053.mp4"
path = "/volume1/photo/phone/DCIM/Camera/"
data_keys = ["DateTimeOriginal", "DateTime", "creation_time"]
file = f"{path}{name}"
print(file)
vid = ffmpeg.probe(file)['streams']
# vid = ffprobe.FFProbe(file).streams
for key in data_keys:
    if key in vid[0]['tags']:
        print(datetime.strptime(vid[0]['tags'].get(key).split('T')[0], "%Y-%m-%d"))


  


• ffmpeg vaapi and (video filter) equalizer

  9 avril 2022, par Harvey King

  I am trying to create a time-lapse video from a set of photos taken by a cheap webcam on my intel/linux machine.

  


  I have figure out how to use vaapi and Intel's hardware acceleration to create such video clip.

  


  The command I use is the following :

  


  ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi -vaapi_device /dev/dri/renderD128 -pattern_type glob -i '/picture/20220116/*.jpg' -c:v hevc_vaapi output.mp4


  


  However, when I use h264_vaapi or hevc_vaapi, I can NOT attach (video) equalizer on top of it.

  


  I am not trying to do anything fancy, just to tone down the gamma a bit, reduce saturation a bit, and increase contrast by a bit. For encoder such as libx264, I attach the following right before the "output.mp4" without any issue :

  


  -vf eq=gamma=0.8:saturation=0.9:contrast=1.1


  


  My questions are :

  


  

  1. can video filter "equalizer" be used along with vaapi ?

  


  2. if yes, what am I missing ? I am keep getting the following error when I am trying to combine video filter equalizer and vaapi :

  


  


  


  Impossible to convert between the formats supported by the filter 'Parsed_eq_0' and the filter 'auto_scaler_0'
Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while processing the decoded data for stream #0:0


  


  


  Thanks in advance

  


• FFMPEG using wrong arguements when refering to image files

  14 août 2013, par Chad Marmon

  I am creating a bat file that will use FFMPEG to convert Real Media files to .MP4 files. I am looping though the current folder and finding files with the .rm extension adding several pictures to the video files to create a slide show effect in the final product.

  With this code here it works except it only shows one static image :

  for %%a in ("*.rm") do ffmpeg -f image2 -r 1/5 -i "img00.jpg" -i "%%a" -c:v libx264 -r 30 -preset slow -crf 20 -c:a libvo_aacenc -b:a 48k -b:v 16k "newfiles\%%~na.mp4"

  With this code it should show a series of photos. However it does not :

  for %%a in ("*.rm") do ffmpeg -f image2 -r 1/5 -i "img%02d.jpg" -i "%%a" -c:v libx264 -r 30 -preset slow -crf 20 -c:a libvo_aacenc -b:a 48k -b:v 16k "newfiles\%%~na.mp4"

  I get this error when I run the second piece of code :

  Could find no file with with path 'imgC :\Data\RealtoMP\FFMPEG_JPG\ffmpegA48V16_AudOnly' and index in the range 0-4
  imgC :\Data\RealtoMP\FFMPEG_JPG\ffmpegA48V16_AudOnly : No such file or directory

  It appears to me that it is somehow instead of getting the range argument like it should, it's injecting the path to the file that I am running. Any ideas of what is causing this ?

  EDIT :

  I fixed my problem by escaping the %02 with another %. The result is %%02 for it to act correctly in the script.