git-svn-id: file:///var/local/repositories/ffmpeg/trunk@861 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

patch by Joey Parrish <joey@yunamusic.com>


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dont trash mm0, its still used in the next iteration of the loop (fixes strange horizontal lines on some blocks in b frames on mmx only cpus)


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skip blocks with small chroma dc too (if the user wants it) needed to avoid IDCT(input coeffs !=0) == 0 problems which cause catastrophic error accumulation at qp=1


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  creating $(prefix)/bin and $(prefix)/lib
  improved linking libavcodec.so -> libavcodec-$(VERSION).so
  ldconfig does not rise an error on not beeing root when installing


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* using 64bits us timestamps (needs more checking)


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faster vlc table selection


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  for the begining it's major rewrite of asf parsing code
  (tested only inside avifile at this moment)
  it handles descrambling (though without WMA it's probably
  useless inside ffmpeg...
* extended AVStream structure to return information about
  stream time length
* extended AVStream to export  extra data found after standard
  headers - not really usefull for ffmpeg - but Windows codecs
  need them.
* asf parsing is not yet finished but works nicely already
  (at 100% better them before :))


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hopefully fixing unreprodceable segfault when overreading the end if error_resilience==-1 (it didnt overread here though)


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last_picture should be never == NULL (it was with dr1) this might fix a segfault with error concealment


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  parameters as the currently desired codec settings. Thus it is
  important not to fiddle with the streams if you want to keep the
  old data.
* Fix it so that the ?buffer= paramter can be larger than 40 minutes or
  so. Why is this good? So I can use ?buffer=43200 and get video from
  12 hours ago (i.e. when it is daylight outside)


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* Fix the sense of the test for "-" with customlog and not closing stdout in daemon mode


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