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• ffmpeg input stream's fps detection bug [closed]

  10 mai 2024, par I have 10 fingers

  I have ffmpeg setup which produces rtmp stream from remote rtsp stream. The rtsp stream comes from ip camera which support multiple profiles. Each profile has 1080p 30 fps, 1080p 15 fps.

  


  The weird thing is that when ffmpeg analyze its input stream, one profile is recognized as 1 fps as below

  


  Input #0, rtsp, from 'rtsp://...':
  Metadata:
    title           : Media Presentation
    comment         : samsung
  Duration: N/A, start: 0.064144, bitrate: N/A
    Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 1 fps, 1 tbr, 90k tbn, 2 tbc
    Stream #0:1: Data: none
Output #0, flv, to 'rtmp:...':
  Metadata:
    title           : Media Presentation
    comment         : samsung
    encoder         : Lavf58.29.100
    Stream #0:0: Video: h264 (High) ([7][0][0][0] / 0x0007), yuvj420p(pc, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 1 fps, 1 tbr, 1k tbn, 90k tbc
Stream mapping:
  Stream #0:0 -> #0:0 (copy)


  


  And when it is played the tbr is 30 i think it means the real fps from video stream is 30.

  


  The other stream is normal 30 fps input 30 fps. I want to know what cause this fps detection bug ?

  


• ffmpeg android, no such file or directory for image only

  14 janvier 2014, par G.T.

  I have a problem using ffmpeg on android device. I have built a static ffmpeg using guardian project, which I use as command line in android. Now my problem is that my code works fine and all for quite a few device, but for some reason on some device(like Nivo) it just fails.

  To be more precise it only fails when I use image as an input. My command has two -i input defined with a complex filter overlaying one on another. Now if I use two video it works like a charm. If I use an image as the second input then it fails saying :

  /mnt/sdcard/Pictures/picture_1389105356533.png : No such file or directory

  The file exists I checked it

  And to make it even more interesting this only happens on some device like the bloody Nivo, generally it works great ( Samsung s2, samsung s4, nexus 7, nexus 4 etc)

  Any idea ?

  Update1
  What I don't get is when I build the guardian project I get ffmpeg version 0.11.1 even though I thought it should auto update the ffmpeg inside it... And as far as I know ffmpeg is around version 2+ now ?

• How can I rename a file from a txt file with Windows bat file ?

  12 septembre 2022, par user1264599

  I have a batch script that renames a file to input.mkv so it can be processed by a string of other commands in the bat file with a final file called ProcessedVideo.mkv. I capture the OG file name using "dir *.mkv /b>OG_FileName.txt" before being renamed.

  


  How can I rename the final processed mkv file to the name captured in the OG_FileName.txt and maybe add "_Added-Text.mkv" as the last part of my Batch Script ? (Adding text to the file name is not that important if it is too much trouble).

  


  I really thought this would be easy but I'm defeated.