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• 'Could find no file' error

  15 octobre 2015, par Brooks

  This is my command :

  "C:\...\ffmpeg.exe" -i "C:\...\audio.mp3" -r 1 -i "C:\...\%%d5.jpg" -qscale:v 1 -shortest ^
  
    -s:v 1280x720 -y -r 30 -pix_fmt yuv420p -filter_complex "[0:a]volume=1[aout]" ^
  
    -map 1:v -map "[aout]" "C:\...\video1.mp4"

  This is the error I get everytime :

  

  I’ve searched and found various answers so I tried with %%d5 %%5d %d5 %5d with no luck.
  My files are named 00000.jpg, 00001.jpg ..., 00005.jpg.

• How to find out exact container/format of a video file using ffprobe ?

  7 janvier 2021, par parthagar

  I would like to find out the exact format/container of a video file using ffprobe but I am unable to reach to the "exact" part of it.

  


  When I run this sample command :
  
ffprobe -hide_banner -loglevel fatal -show_error -show_format -print_format json INPUT
  
I receive this output :

  


  {
    "format": {
        "filename": "INPUT",
        "nb_streams": 2,
        "nb_programs": 0,
        "format_name": "matroska,webm",
        "format_long_name": "Matroska / WebM",
        "start_time": "0.000000",
        "duration": "2.969000",
        "size": "2376430",
        "bit_rate": "6403314",
        "probe_score": 100,
        "tags": {
            "COM.ANDROID.VERSION": "9",
            "MAJOR_BRAND": "mp42",
            "MINOR_VERSION": "0",
            "COMPATIBLE_BRANDS": "isommp42",
            "COM.ANDROID.CAPTURE.FPS": "30.000000",
            "ENCODER": "Lavf57.83.100"
        }
    }
}


  


  As you may have understood, ffprobe gives a list of formats inside the format_name value. This is true for several video formats like mp4, mkv, webm, etc.

  


  Whereas, mediainfo is able to find out the exact type of format, i.e. it outputs a single Format like below :
  
Command : mediainfo INPUT
  
Output :

  


  General
Unique ID                                : 41836023869371892704046005573890259380 (0x1F79533A912A2117C3D4CEB704EAB9B4)
Complete name                            : intermediate.mkv
Format                                   : Matroska
Format version                           : Version 4 / Version 2
File size                                : 2.27 MiB
Duration                                 : 2 s 969 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 6 403 kb/s
Writing application                      : Lavf57.83.100
Writing library                          : Lavf57.83.100
ErrorDetectionType                       : Per level 1
COM.ANDROID.CAPTURE.FPS                  : 30.000000
COM.ANDROID.VERSION                      : 9


  


  *Outputs truncated for decluttering info

  


  Can anyone guide me as to how to achieve this using ffprobe itself ?

  


• pydub.exceptions.CouldntDecodeError : Couldn't find fmt header in wav data

  26 mai 2021, par Jaswanth

  I am trying to make an audiofile into chunks and converting into text but, pydub is refusing to read my wav file.
Here is the code

  


  #from speakerDiarization import main,fmtTime
from pydub import AudioSegment
import os
from speech_to_text import wav_to_text

meet_audio = 'UK.wav'
out_file = r'test.txt'
#spkrs = main(meet_audio)

spkrs = {0: [{'start': 0, 'stop': 6000}, {'start': 15000, 'stop': 15500}], 
1: [{'start': 6000, 'stop': 11000}, {'start': 15500, 'stop': 18500}, {'start':27500, 'stop': 34500}], 
2: [{'start': 11000, 'stop': 15000}, {'start': 18500, 'stop': 27500}, {'start': 34500, 'stop': 41000}]}

new_dict = {}
for spkr in spkrs:
    for i in range(len(spkrs[spkr])):
        new_dict[spkrs[spkr][i]['start']] = [spkr,i]
new_dict = sorted(new_dict)

audio = AudioSegment(meet_audio)

for i in new_dict:
    spkr,ind = new_dict[i][0],new_dict[i][1]
    start,end = spkrs[spkr][ind]['start'],spkrs[spkr][ind]['stop']
    chunk = audio[start:end]
    chunk_file = 'Chunks\chunk'+str(spkr)+str(ind)+'.wav'
    chunk.export(chunk_file,format='.wav')
    wav_to_text(chunk_file,out_file,spkr)


  


  output :

  


  (sprk-diaz) H:\Btech-Proj\Speaker_Diarization>split_audio.py&#xA;H:\Btech-Proj\Speaker_Diarization\sprk-diaz\lib\site-packages\pydub\utils.py:170: RuntimeWarning: Couldn&#x27;t find ffmpeg or avconv - defaulting to ffmpeg, but may not work&#xA;  warn("Couldn&#x27;t find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)&#xA;Traceback (most recent call last):&#xA;  File "H:\Btech-Proj\Speaker_Diarization\split_audio.py", line 20, in <module>&#xA;    audio = AudioSegment(meet_audio)&#xA;  File "H:\Btech-Proj\Speaker_Diarization\sprk-diaz\lib\site-packages\pydub\audio_segment.py", line 222, in __init__&#xA;    wav_data = read_wav_audio(data)&#xA;  File "H:\Btech-Proj\Speaker_Diarization\sprk-diaz\lib\site-packages\pydub\audio_segment.py", line 114, in read_wav_audio&#xA;    raise CouldntDecodeError("Couldn&#x27;t find fmt header in wav data")&#xA;pydub.exceptions.CouldntDecodeError: Couldn&#x27;t find fmt header in wav data&#xA;</module>

  


  I don't know what's wrong, can some solve this please.
Thank you.

  


  My audiofile : around 40sec