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Sur d’autres sites (7356)

  • Unable to find ffmpeg when compressing [duplicate]

    20 octobre 2020, par Programmer

    I made this script for compressing videos :

    


    import os
import sys
import subprocess
result = subprocess.run('ffmpeg -i output.mp4 -b 800k output.mp4')
print(result)


    


    When I run this a error will come like this :

    


      result = subprocess.run('ffmpeg -i output.mp4 -b 800k output.mp4')
  File "C:\Program Files\Python37\lib\subprocess.py", line 488, in run
    with Popen(*popenargs, **kwargs) as process:
  File "C:\Program Files\Python37\lib\subprocess.py", line 800, in __init__
    restore_signals, start_new_session)
  File "C:\Program Files\Python37\lib\subprocess.py", line 1207, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified


    


  • FFMPEG Error Code : "Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_scale_10" ; [complex_filter], [-loop 1], [overlay]

    30 août 2020, par Leroy Freyler

    I'm currently experimenting a bit with ffmpeg around.

    


    I want to produce a video that has a .jpg background image over which several videos are overlaid.

    


    Currently I can overlay a black background with any number of videos. But I'm trying to add a static image to the background and then it doesn't work anymore.

    


    My FFMPEG command line is

    


    command = f"ffmpeg -loop 1 -i background.jpg -i vid1.mp4 -i vid2.mp4 -i vid3.mp4 -i vid4.mp4 -filter_complex "nullsrc=size=1920x1080 [base]; 
    [0:v] setpts=PTS-STARTPTS, scale=320x240 [low]; 
    [1:v] setpts=PTS-STARTPTS, scale=320x240 [upperleft]; 
    [2:v] setpts=PTS-STARTPTS, scale=320x240 [upperright]; 
    [3:v] setpts=PTS-STARTPTS, scale=320x240 [lowerleft]; 
    [4:v] setpts=PTS-STARTPTS; scale=320x240 [lowerright]; 
    [base][upperleft] overlay=shortest=1 [tmp0]; 
    [tmp0][low] overlay=shortest=1:x=420:y=240 [tmp1]; 
    [tmp1][upperright] overlay=shortest=1:x=320 [tmp2]; 
    [tmp2][lowerleft] overlay=shortest=1:y=240 [tmp3]; 
    [tmp3][lowerright] overlay=shortest=1:x=320:y=240" 
    -c:v libx264 output.mkv"


    


    This will generate the following error message

    


    Input #0, image2, from '/home/leroy/Schreibtisch/FFMPEG_TEST/bild.jpg':
  Duration: 00:00:00.04, start: 0.000000, bitrate: 71996 kb/s
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/home/leroy/Schreibtisch/FFMPEG_TEST/1.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41isomavc1
    creation_time   : 2015-08-07T09:13:36.000000Z
  Duration: 00:00:30.53, start: 0.000000, bitrate: 4675 kb/s
    Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 4486 kb/s, 30 fps, 30 tbr, 30 tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2015-08-07T09:13:36.000000Z
      handler_name    : L-SMASH Video Handler
      encoder         : AVC Coding
    Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 256 kb/s (default)
    Metadata:
      creation_time   : 2015-08-07T09:13:36.000000Z
      handler_name    : L-SMASH Audio Handler
Input #2, mov,mp4,m4a,3gp,3g2,mj2, from '/home/leroy/Schreibtisch/FFMPEG_TEST/2.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isomavc1
    creation_time   : 2010-03-20T21:29:11.000000Z
    encoder         : HandBrake 0.9.4 2009112300
  Duration: 00:00:05.57, start: 0.000000, bitrate: 551 kb/s
    Stream #2:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 560x320, 465 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2010-03-20T21:29:11.000000Z
      encoder         : JVT/AVC Coding
    Stream #2:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 83 kb/s (default)
    Metadata:
      creation_time   : 2010-03-20T21:29:11.000000Z
Input #3, mov,mp4,m4a,3gp,3g2,mj2, from '/home/leroy/Schreibtisch/FFMPEG_TEST/3.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isomavc1
    creation_time   : 2010-03-20T21:29:11.000000Z
    encoder         : HandBrake 0.9.4 2009112300
  Duration: 00:00:05.57, start: 0.000000, bitrate: 551 kb/s
    Stream #3:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 560x320, 465 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2010-03-20T21:29:11.000000Z
      encoder         : JVT/AVC Coding
    Stream #3:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 83 kb/s (default)
    Metadata:
      creation_time   : 2010-03-20T21:29:11.000000Z
Input #4, mov,mp4,m4a,3gp,3g2,mj2, from '/home/leroy/Schreibtisch/FFMPEG_TEST/4.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isomavc1
    creation_time   : 2010-03-20T21:29:11.000000Z
    encoder         : HandBrake 0.9.4 2009112300
  Duration: 00:00:05.57, start: 0.000000, bitrate: 551 kb/s
    Stream #4:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 560x320, 465 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2010-03-20T21:29:11.000000Z
      encoder         : JVT/AVC Coding
    Stream #4:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 83 kb/s (default)
    Metadata:
      creation_time   : 2010-03-20T21:29:11.000000Z

Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_scale_10


    


    I used Ubuntu 18.04.LST and Programmed in Python3.6.9.

    


    My complet Code is :

    


    from pathlib import Path
import os
suffix = '.mp4'
suffix1 = '.jpg'
os.system("clear")


input_path = Path.home() / "/home/leroy/Schreibtisch/FFMPEG_TEST"
file_paths = [subp for subp in input_path.rglob('*') if  suffix == subp.suffix or suffix1 == subp.suffix]
file_paths.sort()
output_path =  Path.home() / "/home/leroy/Schreibtisch/FFMPEG_TEST/new"
output_path.mkdir(parents=True, exist_ok=True)


vid1 = '/home/leroy/Schreibtisch/FFMPEG_TEST/1.mp4'
vid2 = '/home/leroy/Schreibtisch/FFMPEG_TEST/2.mp4'
vid3 = '/home/leroy/Schreibtisch/FFMPEG_TEST/3.mp4'
vid4 = '/home/leroy/Schreibtisch/FFMPEG_TEST/4.mp4'
background = '/home/leroy/Schreibtisch/FFMPEG_TEST/bild.jpg'


command = f"ffmpeg -loop 1 -i {background} -i {vid1} -i {vid2} -i {vid3} -i {vid4} -filter_complex \
\"nullsrc=size=1920x1080 [base]; \
[0:v] setpts=PTS-STARTPTS, scale=320x240 [low]; \
[1:v] setpts=PTS-STARTPTS, scale=320x240 [upperleft]; \
[2:v] setpts=PTS-STARTPTS, scale=320x240 [upperright]; \
[3:v] setpts=PTS-STARTPTS, scale=320x240 [lowerleft]; \
[4:v] setpts=PTS-STARTPTS; scale=320x240 [lowerright]; \
[base][upperleft] overlay=shortest=1 [tmp0]; \
[tmp0][low] overlay=shortest=1:x=420:y=240 [tmp1]; \
[tmp1][upperright] overlay=shortest=1:x=320 [tmp2]; \
[tmp2][lowerleft] overlay=shortest=1:y=240 [tmp3]; \
[tmp3][lowerright] overlay=shortest=1:x=320:y=240 \" \
-c:v libx264 output.mkv"
print(command)
os.system(command)



    


  • OpenSuse - Cannot find installation of real FFmpeg

    27 août 2020, par Harry Boy

    I have OpenSuse Leap 15.1 and have installed ffmpeg and checked that its installed as follows :

    


    pip install ffmpeg
pip list | grep ffmpeg
ffmpeg                 1.4


    


    Now when I run the following code :

    


    import skvideo.io
import skvideo.datasets
bbb = skvideo.datasets.bigbuckbunny()
v = skvideo.io.vread(bbb)


    


    I get this error :

    


    Traceback (most recent call last):&#xA;File "<stdin>", line 1, in <module>&#xA;File "/usr/lib/python3.6/site-packages/skvideo/io/io.py", line 133, in vread&#xA;assert _HAS_FFMPEG, "Cannot find installation of real FFmpeg (which comes with ffprobe)."&#xA;AssertionError: Cannot find installation of real FFmpeg (which comes with ffprobe).&#xA;</module></stdin>

    &#xA;

    I have also tried to set the ffmpeg path as follows but I get another error :

    &#xA;

    import skvideo.io&#xA;skvideo.setFFmpegPath(&#x27;/usr/lib/python3.6/site-packages/ffmpeg/&#x27;)&#xA;/usr/lib/python3.6/site-packages/skvideo/__init__.py:306: UserWarning: ffmpeg/ffprobe not found in path: /usr/lib/python3.6/site-packages/ffprobe/&#xA;  warnings.warn("ffmpeg/ffprobe not found in path: " &#x2B; str(path), UserWarning)&#xA;

    &#xA;

    How can I get this to work on OpenSuse ?

    &#xA;

    This is similar to this question but its Ubuntu : Cannot find installation of real FFmpeg (which comes with ffprobe)

    &#xA;

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