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• avformat/async : Fix bug where async could not recover after seek to eof

  11 novembre 2015, par Bryan Huh

  avformat/async : Fix bug where async could not recover after seek to eof
  When async issues its inner seek via ffurl_seek, it treats failures as
  
  EOF being reached. This is not consistent with the behavior of other
  
  protocols (e.g. http, cache) which continue to tolerate reads after
  
  failed seeks, and therefore does not interact correctly with them.
  A common pattern where this manifests itself is where avio_seek is
  
  called with pos to be the end-of-file - the http range-request would
  
  fail here, and async would set io_eof_reached to 1. The background
  
  thread would then refuse to read more bytes, and subsequent reads would
  
  only empty the fifo and end in an error.
  Presumably the code may have expected subsequent seeks to unset the
  
  io_eof_reached but this is not guaranteed to be true - a subsequent seek
  
  that lands in the AVIOContext’s buffer (the fact that the
  
  previously-failed avio_seek leaves the AVIOContext’s buffer intact also
  
  suggests that follow-up reads are expected to be tolerated) would not be
  
  issued to the async_seek function, and when that buffer is drained only
  
  async_read calls would follow, leading to the same error just described.
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/async.c

• difference between using SDL and using media player class that is videoview

  3 juin 2019, par Whoami

  I have been surfing the net for some time to get basic understanding of media framework in android. As part of this, to display video we have media player class or video view component which can easily display the video. When we have such solution provided by the framework itself, then why there are few components avaiable like SDL [ Simple Direct Media Layer], which claims the same functionality as video view ?

  How both are different ?

• Revision e4eb0330fa : vp9_spatial_svc_encoder.sh : Disable existing tests, add a test that works. - vp

  31 juillet 2014, par Tom Finegan

  Changed Paths :
   Modify /test/vp9_spatial_svc_encoder.sh

  
  
  vp9_spatial_svc_encoder.sh : Disable existing tests, add a test that works.

   vp9_spatial_svc_encoder.c no longer supports the -m parameter that
  has been used in the example test. Tests using -m have been disabled.
   Added a basic test that appears to work as of commit
  3249f26ff85e2bfe148167ce80df53643a89a2d2.
   Minor style clean up.

  Change-Id : Ic1402fcbbe28e33982c5ea12d1e3349f4069a5bf