[FFmpeg-trac] #7947(avfilter:new): Feature request: expose more frame properties as variables in drawtext filter

[FFmpeg]

#7947: Feature request: expose more frame properties as variables in drawtext
filter
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             Reporter:               |                    Owner:
  electron.rotoscope                 |
                 Type:  enhancement  |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  unspecified  |               Resolution:
             Keywords:  drawtext     |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Gyan):

 The author should send this to the ffmpeg-devel list using git format-
 patch.

 {{{
 + The metadata accessible to this function must show up using
 + @code{ffprobe -show_packets} formatted as
 TAG:[metadata_key]=[metadata_value].
 }}}

 Why? A user can always insert metadata inside the filtergraph using other
 filters.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7947#comment:3>
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