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${ noResults }
8 Commits (77eb5504d3b3e1047900382350e0bc5e0bfb16b5)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Justin Ruggles
|
fbb6b49dab |
ac3enc: Add x86-optimized function to speed up log2_tab().
AC3DSPContext.ac3_max_msb_abs_int16() finds the maximum MSB of the absolute value of each element in an array of int16_t. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> |
14 years ago |
|
Justin Ruggles
|
626264b11b |
ac3enc: Remove unneeded clipping of shift amount.
s->windowed_samples will always have a range of [-32767,32767] due to the window function, so the return value from log2_tab() will always be in the range [0,14]. Signed-off-by: Mans Rullgard <mans@mansr.com> |
14 years ago |
|
Justin Ruggles
|
d4582889ee |
ac3enc: remove right shifting from lshift_tab() and make lshift unsigned.
Signed-off-by: Mans Rullgard <mans@mansr.com> |
14 years ago |
Diego Elio Pettenò
|
d36beb3f69 |
Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.
None of these symbols should be accessed directly, so declare them as hidden. Signed-off-by: Mans Rullgard <mans@mansr.com> |
14 years ago |
|
Justin Ruggles
|
3b924294ea |
ac3enc: use dsputil functions in apply_window()
Signed-off-by: Mans Rullgard <mans@mansr.com> |
14 years ago |
|
Justin Ruggles
|
ac05f9030e |
Convert floating-point MDCT coefficients to 24-bit fixed-point all at once
instead of doing it separately in 2 different functions. This makes float AC-3 encoding approx. 3-7% faster overall. Also, the coefficient conversion can now be easily SIMD-optimized. Originally committed as revision 26232 to svn://svn.ffmpeg.org/ffmpeg/trunk |
14 years ago |
|
Justin Ruggles
|
6fd96d1a85 |
Change the AC-3 encoder to use floating-point.
Fixed-point AC-3 encoder renamed to ac3_fixed. Regression test acodec-ac3 renamed to acodec-ac3_fixed. Regression test lavf-rm changed to use ac3_fixed encoder. Originally committed as revision 26209 to svn://svn.ffmpeg.org/ffmpeg/trunk |
14 years ago |
|
Justin Ruggles
|
ad6b2c1f6d |
Move fixed-point parts of the AC-3 encoder to separate files.
Originally committed as revision 26206 to svn://svn.ffmpeg.org/ffmpeg/trunk |
14 years ago |