[FFmpeg-trac] #4008(avfilter:new): "main_w" value unrecognized with the new "enable" option in Drawtext

FFmpeg trac at avcodec.org
Mon Oct 6 15:20:16 CEST 2014

#4008: "main_w" value unrecognized with the new "enable" option in Drawtext
             Reporter:  beloko       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avfilter
              Version:  unspecified  |               Resolution:
             Keywords:  drawtext     |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by beloko):

 Shared the "enable" option filters with others is a nice goal, FFmpeg can
 solve many use cases.

 Ex: With "draw" option, I can make a text readable on any high resolution
 video file in just one FFmpeg command line. Otherwise, I have to detect
 the input video resolution width before call a specific FFmpeg command for
 each width.

 I prefer switch between different font sizes than having an auto-scale
 text I can't size properly.

 For now, I built a new FFmpeg binary by merging your patch. "Drawtext"
 error messages are left after the command line, but the text content
 doesn't appear on the output video file.

Ticket URL: <https://trac.ffmpeg.org/ticket/4008#comment:7>
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