[FFmpeg-trac] #5843(avformat:open): Read references in swf files

[FFmpeg]

#5843: Read references in swf files
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             Reporter:  TopsLuo      |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  swf          |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
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Comment (by cehoyos):

 Iiuc, the relevant tag is starting at 0x32f88, a !DefineSprite tag (39)
 with length 886 that contains an !DoAction tag (12) with length 842. The
 first action is an !ActionConstantPool (0x88) that defines 30 strings
 (including the relevant parts of the url
 http://pop.img.ledu.com/5232/flv.f4v), followed by an
 !ActionDefineFunction (0x9b) with the name "video_replay" and several
 !ActionPush actions.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5843#comment:8>
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