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ffmpeg / libavcodec / ac3enc_float.c @ 26f548bb

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# Date Author Comment
26f548bb 03/19/2011 07:49 PM Mans Rullgard

fft: remove inline wrappers for function pointers

This removes the rather pointless wrappers (one not even inline)
for calling the fft_calc and related function pointers.

Signed-off-by: Mans Rullgard <>

2912e87a 03/19/2011 01:33 PM Mans Rullgard

Replace FFmpeg with Libav in licence headers

Signed-off-by: Mans Rullgard <>

0f999cfd 03/17/2011 08:46 PM Justin Ruggles

ac3enc: add float_to_fixed24() with x86-optimized versions to AC3DSPContext
and use in scale_coefficients() for the floating-point AC-3 encoder.

d36beb3f 01/26/2011 04:08 PM Diego Elio Pettenò

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 <>

3b924294 01/22/2011 05:53 PM Justin Ruggles

ac3enc: use dsputil functions in apply_window()

Signed-off-by: Mans Rullgard <>

ac05f903 01/05/2011 08:35 PM Justin Ruggles

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....

6fd96d1a 01/04/2011 11:53 AM Justin Ruggles

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