Changeset 323e6fea in ffmpeg
- Timestamp:
-
Mar 14, 2011, 12:45:26 PM
(14 years ago)
- Author:
- Justin Ruggles <justin.ruggles@gmail.com>
- Branches:
- master
- Children:
- f1efbca5
- Parents:
- 6e7cf13b
- git-author:
- Justin <justin.ruggles@gmail.com> (03/11/11 18:03:26)
- git-committer:
- Justin Ruggles <justin.ruggles@gmail.com> (03/14/11 12:45:26)
- Message:
-
ac3enc: do not right-shift fixed-point coefficients in the final MDCT stage.
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.
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(No files)
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