[FFmpeg-trac] #2656(undetermined:closed): Extracting only keyframes is very slow

[FFmpeg]

#2656: Extracting only keyframes is very slow
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             Reporter:  konstantin   |                    Owner:
                 Type:  enhancement  |                   Status:  closed
             Priority:  minor        |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:  invalid
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:  slow, keyframe, extraction =>
 * status:  new => closed
 * resolution:   => invalid


Comment:

 Use {{{-skip_frame nokey}}} if you only want to decode keyframes, the
 select filter works after decoding so all frames have to be decoded, no
 matter which ones are used later.

 Please understand that this is a bug tracker, not a support forum, usage
 questions are welcome on the ffmpeg-user mailing list.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2656#comment:1>
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