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• Is ffmpeg giving incorrect frame count ?

  15 mai 2020, par trshmanx

  The videos Duration: 00:00:06.93 and 25 fps
If we do the math it's 173.25 (173 rounded) frames.
However this command ffmpeg -i video.mp4 -qscale:v 1 filename_%06d.jpg extracts 172 frames. Am I calculating or doing something wrong ?
I want to use this of some automation in my Python project.

  



  Edit :

  



  I do have video frame in 6.840000

  



  [FRAME]
media_type=video
stream_index=1
key_frame=0
pkt_pts=171000
pkt_pts_time=6.840000
pkt_dts=N/A
pkt_dts_time=N/A
best_effort_timestamp=171000
best_effort_timestamp_time=6.840000
pkt_duration=1000
pkt_duration_time=0.040000
pkt_pos=22689592
pkt_size=213060
width=1920
height=1080
pix_fmt=yuv420p
sample_aspect_ratio=N/A
pict_type=P
coded_picture_number=169
display_picture_number=0
interlaced_frame=0
top_field_first=0
repeat_pict=0
color_range=tv
color_space=bt709
color_primaries=bt709
color_transfer=bt709
chroma_location=left
[/FRAME]


  



  My full frame dump here

  



  Edit 2 :

  



  My intention is to get the frames exactly, as when watching the video. I don't care about some frame being longer / shorter, audio longer etc. I tried to force the fps ffmpeg -i LUCKY_BRUNETTE.mp4 -vf fps=25 -qscale:v 1 filename_%06d.jpg but still got 172 frames.

  


• FFMPEG FFBROBE Get Frame Count On Powershell [duplicate]

  27 avril 2020, par ilham zacky

  I am new to FFmpeg, I have some audio and video files, I need to get the duration with frames, I need it in this format H:M:S:F - "00:00:00:00", I am using Powershell

  



  currently, my duration works, but instead of frames, it prints a decimal value.
note : in my output maximum number of frames should be 30

  



  This is my code

  



  $audioId = "$id.m4a"
$videoId = "$id.mp4"

$duration1 = if ((ffprobe -i $audioId 2>&1 | Out-String) -match 'Duration:\s+([\d:"."]+)') { $matches[1] };

$duration = if ((ffmpeg -i $videoId 2>&1 | Out-String) -match 'Duration:\s+([\d:"."]+)') { $matches[1] };

$newduration1 = ("$duration1").Replace(".",":")
$newduration = ("$duration").Replace(".",":")

echo $duration1 
echo $duration



  



  my output be like

  



  00:00:03.48
00:00:03.46



  


• How to count from zero to 1200.80 in ffmpeg ?

  19 avril 2020, par Josias da Paixao junior

  I am wanting to create a count from a number starting from zero until another number specified in the variable, I intend to choose at which point in the video this number appears and at what point it should disappear.

  



  It would be like this, I choose when the number zero appears and starts counting up to the number 1200.80, then I choose when the number disappears.

  



  I have no idea how to start.

  



  The code I have is this :

  



  ffmpeg -loop 1 -i bgImage.png -vf "drawtext=fontfile='C:\\Windows\\fonts\\Arial.ttf':
              fontcolor=yellow:fontsize=45:x=100:y=65:text=codCountnumberHere out.mp4


  



  if possible I would like to choose the counting speed.

  



  Every help is welcome.

  



  HELP-ME !!!