[FFmpeg-trac] #2469(FFmpeg:new): ffmpeg overlay issue

FFmpeg trac at avcodec.org
Mon Apr 15 10:45:15 CEST 2013

#2469: ffmpeg overlay issue
             Reporter:               |                     Type:  defect
  itnarayanan@…                      |                 Priority:  critical
               Status:  new          |                  Version:
            Component:  FFmpeg       |  unspecified
             Keywords:  ffmpeg       |               Blocked By:
  overlay                            |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
 Summary of the bug:
 I have being using overlay filter for stitch more then 3 live video
 streams.it was working in early version very nice manner but i am getting
 flickering and packet overflow issues in new version. i had tried with
 windows build(ffmpeg.exe) and linux with master source code.The result is

 windows ffmpeg Build:
  2013-02-27 git-2ecf564(Working fine no issue)

 Code as follows:
 ffmpeg -i rtmp://localhost:1935/live/mystream1 -re -i
 rtmp://localhost:1935/live/mystream2 -re -i
 rtmp://localhost:1935/live/mystream3 -filter_complex "nullsrc=size=
 520x326 [b1];[0:v] scale=512*288 [s1];
 [1:v] scale = 64*36 [s2];[2:v] scale = 64*36 [s3];[b1][s1] overlay=x=3:y=0
 [b1+s1];[b1+s1][s2] overlay=x=0:y=289 [b1+s2];[b1+s2][s3]
 overlay=x=65:y=289;amix=inputs=3" -vcodec libx264 -acodec libmp3lame -b:a
 32k -b:v 1024k -preset fast -tune zerolatency -f flv

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2469>
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