Recherche avancée

Sur d’autres sites (10509)

• DVD Protection Test on Batch on MacOSX [closed]

  30 mars 2014, par jonhatan smith

  I work on Mac and PC so this question is for both OS.
  I'm new to batch scripting and I'm wondering if there is any way to test if a DVD (with chapters and titles and videos) is protected or not.
  What I mean by protected, is any kind of protection that could alterate the ripping of my DVD.
  After testing if the DVD is protected, the script should put the result into a variable, to later perform another operation.

  the script process could look like that :

  Is the Drive X contains A DVD?
  
  
  
      if No--->Pause;
  
      else if Yes--->Continue;
  
      else error;
  
  
  
      Is the DVD Protected?
  
          if No--->open HandBrake.app;
  
          else if Yes--->open program.app;
  
          else error;

  Thank you in advance for any replies.

• Error while extracting 3 images from mp4 video file

  19 janvier 2014, par kheya

  I am trying to extract 3 images from mp4 video using ffmpeg.exe
  The images are generated just fine but I get some warning(yellow) and error (red) text

  Anyone can help me fix the issue ?

  Thanks

  Warning :

  Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yu
  
  vj420p'

  Error :

  [image2 @ 02e5fde0] Could not get frame filename number 2 from pattern 'C:\bob\
  
      Challenge\FFMPEG/jadu-1.jpg'
  
  av_interleaved_write_frame(): Invalid argument
  
  The system cannot find the drive specified.
  
  The system cannot find the drive specified.

  My command (in bat file) :

  for %%a in (%1\*.mp4) do (
  
     ffmpeg -i "%%a" -r 1 -t 1 -ss 1 -s sqcif "%2/%%~na-1.jpg" -r 1 -t 1 -ss 4 -s sqcif "%2/%%~na-2.jpg" -r 1 -t 1 -ss 7 -s sqcif "%2/%%~na-3.jpg"
  
  )

  Output :

  ffmpeg version 0.8.14, Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Jul 26 2013 15:57:05 with gcc 4.6.2
  
    configuration: --prefix=ffmpeg/ --disable-network --disable-debug --disable-ya
  
  sm
  
    libavutil    51.  9. 1 / 51.  9. 1
  
    libavcodec   53.  8. 0 / 53.  8. 0
  
    libavformat  53.  5. 0 / 53.  5. 0
  
    libavdevice  53.  1. 1 / 53.  1. 1
  
    libavfilter   2. 23. 0 /  2. 23. 0
  
    libswscale    2.  0. 0 /  2.  0. 0
  
  
  
  Seems stream 1 codec frame rate differs from container frame rate: 60000.00 (600
  
  00/1) -> 29.97 (30000/1001)
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\bob\FFMPEG\jadu.mp4
  
  ':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isomavc1mp42
  
      creation_time   : 2007-10-18 18:05:17
  
      title           : Jaadu bhare - YouTube
  
    Duration: 00:02:27.68, start: 0.000000, bitrate: 605 kb/s
  
      Stream #0.0(und): Audio: aac, 44100 Hz, stereo, s16, 102 kb/s
  
      Metadata:
  
        creation_time   : 2007-10-18 18:05:17
  
      Stream #0.1(und): Video: h264 (Baseline), yuv420p, 320x240 [PAR 1:1 DAR 4:3]
  
  , 500 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc
  
      Metadata:
  
        creation_time   : 2007-10-18 18:05:17
  
  Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yu
  
  vj420p'
  
  [buffer @ 02e4dcc0] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
  
  [scale @ 003af160] w:320 h:240 fmt:yuv420p -> w:128 h:96 fmt:yuvj420p flags:0x4
  
  Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yu
  
  vj420p'
  
  [buffer @ 03397b20] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
  
  [scale @ 02f2ffa0] w:320 h:240 fmt:yuv420p -> w:128 h:96 fmt:yuvj420p flags:0x4
  
  Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yu
  
  vj420p'
  
  [buffer @ 033b6380] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
  
  [scale @ 033b6620] w:320 h:240 fmt:yuv420p -> w:128 h:96 fmt:yuvj420p flags:0x4
  
  Output #0, image2, to 'C:\bob\FFMPEG/jadu-1.jpg':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isomavc1mp42
  
      creation_time   : 2007-10-18 18:05:17
  
      title           : Jaadu bhare - YouTube
  
      encoder         : Lavf53.5.0
  
      Stream #0.0(und): Video: mjpeg, yuvj420p, 128x96 [PAR 1:1 DAR 4:3], q=2-31,
  
  200 kb/s, 90k tbn, 1 tbc
  
      Metadata:
  
        creation_time   : 2007-10-18 18:05:17
  
  Output #1, image2, to 'C:\bob\FFMPEG/jadu-2.jpg':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isomavc1mp42
  
      creation_time   : 2007-10-18 18:05:17
  
      title           : Jaadu bhare - YouTube
  
      encoder         : Lavf53.5.0
  
      Stream #1.0(und): Video: mjpeg, yuvj420p, 128x96 [PAR 1:1 DAR 4:3], q=2-31,
  
  200 kb/s, 90k tbn, 1 tbc
  
      Metadata:
  
        creation_time   : 2007-10-18 18:05:17
  
  Output #2, image2, to 'C:\bob\FFMPEG/jadu-3.jpg':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isomavc1mp42
  
      creation_time   : 2007-10-18 18:05:17
  
      title           : Jaadu bhare - YouTube
  
      encoder         : Lavf53.5.0
  
      Stream #2.0(und): Video: mjpeg, yuvj420p, 128x96 [PAR 1:1 DAR 4:3], q=2-31,
  
  200 kb/s, 90k tbn, 1 tbc
  
      Metadata:
  
        creation_time   : 2007-10-18 18:05:17
  
  Stream mapping:
  
    Stream #0.1 -> #0.0
  
    Stream #0.1 -> #1.0
  
    Stream #0.1 -> #2.0
  
  Press [q] to stop, [?] for help
  
  [image2 @ 02e5fde0] Could not get frame filename number 2 from pattern 'C:\bob\
  
  Challenge\FFMPEG/jadu-1.jpg'
  
  av_interleaved_write_frame(): Invalid argument
  
  The system cannot find the drive specified.
  
  The system cannot find the drive specified.

• Clipping audio problem on ffmpeg live stream

  20 mars 2019, par Ivan Bombash Stokic

  in 30-40% of the live stream i get some king of distortion or clipping in the streamed audio and i have no idea why, is is only because low hardware performance maybe ? I am running the stream on a Raspberry pi 3b+ CPU usage while streaming from 25 to 30% Ram usage 28% , storage device is a USB pen drive.

  Here is the code :

  ffmpeg -re -f alsa -i default -re -stream_loop -1 -i "/home/pi/Documents/Youtube/video720p.mp4" -c:v copy -c:a aac -f flv -max_muxing_queue_size 400 rtmp://a.rtmp.youtube.com/live2/pfjd-jhjs-k3td-xxxx

  Or i should buffer it before streaming or re-encode the audio before streaming ?

  Thanks in advance !