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• Convert Image and gif to mp4 video [closed]

  17 février 2020, par Rahul Kumar

  I am trying to make mp4 video using ffmpeg
  with one 2 png image and one gif image to mp4 video

  First one png image will show on video then gif image will be display and after that second png
  image will be show in mp4 video

• Merge commit '3303f86467efa99f23c670707f5be094cc9ce547'

  12 octobre 2017, par James Almer

  Merge commit '3303f86467efa99f23c670707f5be094cc9ce547'
  * commit '3303f86467efa99f23c670707f5be094cc9ce547' :
  
    nvenc : Remove qmin and qmax constraints for nvenc vbr
  [10:06:59 CEST] <BtbN> jamrial, 3303f86467 is a no-op. NV_ENC_PARAMS_RC_2_PASS_VBR is a deprecated rc mode(http://git.videolan.org/?p=ffmpeg.git;a=blob;f=compat/nvenc/nvEncodeAPI.h;h=c3a829421282d5f22f82fc285723f13eb660f053;hb=HEAD#l268).
  
  [10:07:14 CEST] <BtbN> And the first hunk with qmin/qmax was applied to ffmpeg quite a while ago already.
  
  [10:07:49 CEST] <BtbN> In a slightly different fashion, but with the same effect
  
  [10:07:58 CEST] <BtbN> Came as a patch from nvidia iirc
  Merged-by : James Almer <jamrial@gmail.com>
  

• How to close colons in timecodes for OS X bash

  1er septembre 2015, par Tandy Freeman

  I’m trying to generate videos using ffmpeg that display a burnt in timecode of the source video. I’m using a bash script in OS X.
  video 1 has a starting timecode of 09:59:30:00

  In order to use the drawtext filter in ffmpeg, I need to close the colons, as they are used to delimit the filter.

  They need to be in this format in the script timecode='00\:00\:00\:00' and they will ultimately show up like this in the actual terminal window : timecode='\''00\:00\:00\:00'\''

  Is there some way to transform the values stored in the $timecode variable, using sed or awk, or something similar ?

  I’m using ffprobe to generate the timecode and adding it as a variable

  $ timecode=($(ffprobe -v error -show_entries format_tags=timecode -of default=noprint_wrappers=1:nokey=1 "$1" ))
  
  $ echo $timecode
  
  09:59:30:00

  When I add the variable $timecode in this fashion to my script :

  ffmpeg -i "$1" -c:v libx264 -crf 23 -pix_fmt yuv420p -vf drawtext="fontsize=45":"fontfile=/Library/Fonts/Arial\ Black.ttf:fontcolor=white:timecode="$timecode":rate=$framerate:boxcolor=0x000000AA:box=1:x=360-text_w/2:y=480" ""$mezzanine"/"$filenoext"_PRORES.mov"

  the timecode shows up without anything closed when I use bash -x :

  + ffmpeg -i /Users/kieranoleary/Downloads/AS11_DPP_HD_OEM_SAMPLE_136_1.mxf -c:v libx264 -crf 23 -pix_fmt yuv420p -vf 'drawtext=fontsize=45:fontfile=/Library/Fonts/Arial\ Black.ttf:fontcolor=white:timecode=09:59:30:00:rate=25/1:boxcolor=0x000000AA:box=1:x=360-text_w/2:y=480' /Users/kieranoleary/Downloads/AS11_DPP_HD_OEM_SAMPLE_136_1/mezzanine/AS11_DPP_HD_OEM_SAMPLE_136_1_PRORES.mov

  and I get the following error :

  [Parsed_drawtext_0 @ 0x7f9dc242e360] Both text and text file provided. Please provide only one
  
  [AVFilterGraph @ 0x7f9dc242e4e0] Error initializing filter 'drawtext' with args 'fontsize=45:fontfile=/Library/Fonts/Arial Black.ttf:fontcolor=white:timecode=09:59:30:00:rate=25/1:boxcolor=0x000000 A:box=1:x=360-text_w/2:y=480'
  
  Error opening filters!