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• How to add gif and text overlay on mp4 video using ffmpeg-full-gpl in android [duplicate]

  11 février 2021, par Dnyaneshwar Panchal

  I used below ffmpeg command for add gif on mp4 video & it is working fine,

  


  The question is different I have used ffmpeg gpl library for now the reason is getting video low very thats I have used this library.

  


  int cmd= FFmpeg.execute(new String[]{"-y", "-i", "a.mp4", "-ignore_loop", "0", "-i", 
"storage/emulated/0/watermark/watermark.gif", "-filter_complex", "overlay=5:5:shortest=1", "-c:v", 
"libx264", "-r", "10", "-preset:v", "ultrafast", "b.mp4"});


  


  But, I want to add gif with text also.
how to add text also in above command ? please help !
  
I used below library for ffmpeg,

  


  implementation 'com.arthenica:mobile-ffmpeg-full-gpl:4.4'


  


  Thanks in adv !

  


• Full HD video converted to FLV, slow playback in browser

  12 février 2012, par Boyan Georgiev

  I rendered a full HD video using Adobe AfterEffects CS5 in mp4 format. It plays just fine. I've got this video app to which I fed the mp4 file. The video app converts the mp4 to flv format and makes the video available via a web page. I've downloaded the resulting flv file to my local PC - it plays just fine in my VLC player. But, the problem is I'm getting awful playback inside my browser.

  I've made sure the issue is not bandwidth related.
  Both original mp4 file, and ffmpeg-converted FLV file, play perfectly using VLC player.
  I've tested the FLV file with two players - Agryia FLV Player Elite and JW Player. Both players play the video awfully - really slow and very choppy.

  Here's my ffmpeg -i myflvfile.flv :
  `

  Seems stream 0 codec frame rate differs from container frame rate: 119.88 (120000/1001) -> 59.92 (719/12)
  
  Input #0, flv, from '94044631305552037.flv':
  
  Metadata:
  
  duration        : 146
  
  width           : 1920
  
  height          : 1080
  
  videodatarate   : 684
  
  framerate       : 60
  
  videocodecid    : 7
  
  audiodatarate   : 62
  
  audiosamplerate : 22050
  
  audiosamplesize : 16
  
  stereo          : true
  
  audiocodecid    : 2
  
  major_brand     : mp42
  
  minor_version   : 0
  
  compatible_brands: mp42mp41
  
  creation_time   : 2012-02-10 00:55:19
  
  encoder         : Lavf52.111.0
  
  filesize        : 61969316
  
  Duration: 00:02:25.77, start: 0.034000, bitrate: 764 kb/s
  
  Stream #0.0: Video: h264 (High), yuv420p, 1920x1080 [PAR 3:4 DAR 4:3], 700 kb/s, 59.92 tbr, 1k tbn, 119.88 tbc
  
  Stream #0.1: Audio: mp3, 22050 Hz, stereo, s16, 64 kb/s`

  Can any one point me in the right direction here ? Why is playback perfect with VLC player of both the mp4 and the flv file on my local PC, yet in my browser, using two different players, the playback is so bad ?

  PS Here's my convert command :

  ffmpeg -y -i /var/www/sandverlag.com/htdocs/rmtk/videos/originals/94044631305552038.mp4 -vcodec libx264 -ar 22050 -ac 2 -vb 700000 -s 1920x1080 -crf 22 -threads 0 -f flv /var/www/sandverlag.com/htdocs/rmtk/videos/converted/94044631305552038.flv > /dev/null &    

• twinvq : consume block_align+1 packets as full ones

  20 octobre 2013, par Kostya Shishkov

  twinvq : consume block_align+1 packets as full ones
  They can be produced by VQF.
  Signed-off-by : Diego Biurrun <diego@biurrun.de>
  

  • [DH] libavcodec/twinvq.c