1. 14 Mar, 2011 1 commit
    • Justin's avatar
      ac3enc: do not right-shift fixed-point coefficients in the final MDCT stage. · 323e6fea
      Justin authored
      This increases the accuracy of coefficients, leading to improved quality.
      Rescaling of the coefficients to full 25-bit accuracy is done rather than
      offsetting the exponent values. This requires coefficient scaling to be done
      before determining the rematrixing strategy. Also, the rematrixing strategy
      calculation must use 64-bit math to prevent overflow due to the higher
      precision coefficients.
      323e6fea
  2. 15 Feb, 2011 1 commit
  3. 02 Feb, 2011 1 commit
  4. 28 Jan, 2011 1 commit
  5. 26 Jan, 2011 1 commit
  6. 19 Jan, 2011 1 commit
  7. 29 Dec, 2010 1 commit
    • Justin Ruggles's avatar
      Change the default dB-per-bit code from 2 to 3. · ec44dd5f
      Justin Ruggles authored
      This gives slightly better quality in PEAQ tests.
      Code 3 gives a dBpb value of 2816 = -132dB (128 psd units = -6dB), which
      corresponds to 22 bits. Since the exponents have an offset applied, the
      16-bit source looks like 24-bit source to the bit allocation routine.
      So using dBpb code=3 is a closer match to the exponent range.
      
      Regression test refs updated for acodec-ac3, lavf-rm, and seek-ac3_rm.
      
      Originally committed as revision 26144 to svn://svn.ffmpeg.org/ffmpeg/trunk
      ec44dd5f
  8. 21 Dec, 2010 1 commit
  9. 14 Dec, 2010 1 commit
  10. 16 Oct, 2010 1 commit
  11. 07 Oct, 2010 3 commits
  12. 31 Aug, 2010 2 commits
  13. 21 Jul, 2010 1 commit
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  16. 24 May, 2010 1 commit
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  20. 25 Mar, 2010 1 commit
  21. 15 Mar, 2010 1 commit
  22. 08 Mar, 2010 4 commits
  23. 07 Mar, 2010 1 commit
  24. 02 Mar, 2010 2 commits
  25. 24 Feb, 2010 1 commit
  26. 03 Feb, 2010 1 commit
    • Michael Niedermayer's avatar
      Correct opts calulation in ffmpeg.c. · f575f08c
      Michael Niedermayer authored
      This correct the stop point for demuxing with -vcodec copy and -t as well as
      packet interleaving. (we already diddrop packets but kept demuxing them
      for too long due to opts being wrong)
      the change to ffm is due to 2 packets with timestamp 0 being stored
      in different order.
      
      Originally committed as revision 21626 to svn://svn.ffmpeg.org/ffmpeg/trunk
      f575f08c
  27. 01 Feb, 2010 1 commit
  28. 21 Jan, 2010 1 commit
  29. 16 Jan, 2010 1 commit