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verified publisher icon WyattBlue

Video shows static frame when jumping back and forth after removing the silence

Open mannarmani opened this issue 3 years ago • 6 comments

What's your platform?

Python Version: 3.10.2 64-bit
Platform: Windows 10 amd64
FFmpeg Version: N-105325-g7512293cf9
FFmpeg Path: C:\Program Files\Python310\Lib\site-packages\auto_editor\ffmpeg\Windows\ffmpeg.exe
Auto-Editor Version: 22w18a

Bug description

  1. To remove silence from video, run the command auto-editor "Intro.mp4" --frame-margin 8
  2. After a while the video get shorten
  3. Open the Intro_ALTERED.mp4 in VLC/any other video player
  4. Move back and forth
  5. Notice the video is frozen jittery /frozen Intro.zip and displays only the frame that was showing before moving back and forth

Please note that it was working flawless when I checked about 6 weeks back (I'm sure which version I used)

What command did you use

auto-editor "Intro.mp4" --frame-margin 8

What properties does your input video have?

intro.mp4:
 - video:
   - track 0:
     - codec: h264
     - pix_fmt: yuv420p
     - fps: 30
     - resolution: 640x360
     - aspect ratio: 16:9
     - timebase: 1/15360
     - cc timebase: 1/60
     - bitrate: 33 kb/s
     - lang: und
 - audio:
   - track 0:
     - codec: aac
     - samplerate: 44100
     - bitrate: 128 kb/s
     - lang: eng
 - container:
   - duration: 00:04:47.42
   - bitrate: 169 kb/s
   
   
   
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'intro.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    title           : Learn PMP concepts in MindMap way | Project Management Professional (PMP)®
    artist          : pmpexam guru
    date            : 2020
    encoder         : Lavf58.39.101
    comment         : https://www.youtube.com/watch?v=tJWp7FGH7fo
  Duration: 00:04:47.42, start: 0.000000, bitrate: 169 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x360 [SAR 1:1 DAR 16:9], 33 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc.
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc.

Comments

No response

mannarmani avatar May 13 '22 15:05 mannarmani

Your ALTERED video has only 1 keyframe which explains the difficulty when jumping back and forth.

What's strange is when running your input video on my computer, the output does have steady stream of keyframes.

WyattBlue avatar May 13 '22 20:05 WyattBlue

Thank you for the quick reply. Not only for this video, but in any video, I face this issue. Also, tried in an another computer and the issue remains the same.

mannarmani avatar May 14 '22 07:05 mannarmani

Even example.mp4, the canonical video used for testing?

WyattBlue avatar May 14 '22 08:05 WyattBlue

Even example.mp4, the canonical video used for testing?

I'm sorry, I couldn't understand what you are asking. I meant to say that I have used the same intro.mp4 for testing in an another computer. Also, tested few other videos (both in my machine and in an another machine) and the result is same.

mannarmani avatar May 15 '22 12:05 mannarmani 

Platform: Windows 10 amd64
FFmpeg Version: N-105325-g7512293cf9
FFmpeg Path: C:\Users\Zoey\AppData\Local\Programs\Python\Python310\Lib\site-packages\auto_editor\ffmpeg\Windows\ffmpeg.exe
Auto-Editor Version: 22w18a

test.mp4:
 - video:
   - track 0:
     - codec: h264
     - pix_fmt: yuv420p
     - fps: 20
     - resolution: 1280x720
     - aspect ratio: 16:9
     - timebase: 1/90000
     - cc timebase: 1/180000
     - bitrate: 673 kb/s
     - lang: und
 - audio:
   - track 0:
     - codec: aac
     - samplerate: 48000
     - bitrate: 63 kb/s
     - lang: und
 - container:
   - duration: 01:44:06.91
   - bitrate: 743 kb/s
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.25.101
  Duration: 01:44:06.91, start: 0.000000, bitrate: 743 kb/s
  Stream #0:0[0x1](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, mono, fltp, 63 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1280x720, 673 kb/s, 20 fps, 20 tbr, 90k tbn (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]

I experienced the same issue, I found re-encoding the video in handbrake fixed it, (I did not experience the same issue with the example video)

zonkedzoey avatar May 22 '22 11:05 zonkedzoey

Thank you for the quick alternate solution (handbrake). Yes, it works. To me, the file size increases after re-encoding in handbrake.

mannarmani avatar Jun 06 '22 13:06 mannarmani

Is this still a problem in 22w32a?

WyattBlue avatar Aug 11 '22 15:08 WyattBlue

Hi WyattBlue, Yes, the problem still exist.

mannarmani avatar Aug 13 '22 13:08 mannarmani

Hi WyattBlue, Yes, the problem still exist.

Can you send the affected video?

WyattBlue avatar Aug 13 '22 14:08 WyattBlue

Hi WyattBlue,

Uploaded a sample here. https://drive.google.com/drive/folders/1EuncSVEqfI9C-_WhZ9KiDDoanlksWhV-?usp=sharing

SampleVid.mp4 is the original one. SampleVid_ALTERED is the generated by auto-editor with silence removed.

Now, unlike in the past, the video screen doesn't free and shows the old one, but now there is lag.

In the 2nd file, move between 1st slide screen and 2nd slide screen and 3rd slide. The screen freezes and then video gets played. In a 30 minutes videos the screen freezes sometimes even 3 to 5 seconds.

I hope this helps.

Best regards, Mani.

On Sat, Aug 13, 2022 at 7:48 PM WyattBlue @.***> wrote:

Hi WyattBlue, Yes, the problem still exist.

Can you send the affected video?

— Reply to this email directly, view it on GitHub https://github.com/WyattBlue/auto-editor/issues/281#issuecomment-1214166798, or unsubscribe https://github.com/notifications/unsubscribe-auth/ANGETKSYKTEEE6DVJ2OTBPTVY6VB3ANCNFSM5V3XNUGA . You are receiving this because you authored the thread.Message ID: @.***>

mannarmani avatar Aug 14 '22 04:08 mannarmani

Hi WyattBlue/auto-editor, Are you able to reproduce the issue?

Regards, Mani

On Sun, Aug 14, 2022 at 10:14 AM mannar mani @.***> wrote:

Hi WyattBlue,

Uploaded a sample here.

https://drive.google.com/drive/folders/1EuncSVEqfI9C-_WhZ9KiDDoanlksWhV-?usp=sharing

SampleVid.mp4 is the original one. SampleVid_ALTERED is the generated by auto-editor with silence removed.

Now, unlike in the past, the video screen doesn't free and shows the old one, but now there is lag.

In the 2nd file, move between 1st slide screen and 2nd slide screen and 3rd slide. The screen freezes and then video gets played. In a 30 minutes videos the screen freezes sometimes even 3 to 5 seconds.

I hope this helps.

Best regards, Mani.

On Sat, Aug 13, 2022 at 7:48 PM WyattBlue @.***> wrote:

Hi WyattBlue, Yes, the problem still exist.

Can you send the affected video?

— Reply to this email directly, view it on GitHub https://github.com/WyattBlue/auto-editor/issues/281#issuecomment-1214166798, or unsubscribe https://github.com/notifications/unsubscribe-auth/ANGETKSYKTEEE6DVJ2OTBPTVY6VB3ANCNFSM5V3XNUGA . You are receiving this because you authored the thread.Message ID: @.***>

mannarmani avatar Aug 28 '22 07:08 mannarmani

@mannarmani Nope

WyattBlue avatar Aug 28 '22 07:08 WyattBlue