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authorRostislav Pehlivanov <atomnuker@gmail.com>2015-04-12 05:50:34 +0100
committerMichael Niedermayer <michaelni@gmx.at>2015-04-13 04:14:27 +0200
commitf7f71b5795d708763eb0c55fe5e2cb051b2b69f4 (patch)
tree8df18b1a8d27c0b8ef6cf1256d153caf705733f3 /ffmpeg_vda.c
parentc919cc61a155c45147913841003f742e0a53ac0d (diff)
downloadffmpeg-f7f71b5795d708763eb0c55fe5e2cb051b2b69f4.tar.gz
aacenc: Add support for Perceptual Noise Substitution energy values
This commit implements support for writing the noise energy values used in PNS. The difference between regular scalefactors and noise energy values is that the latter require a small preamble (NOISE_PRE + energy_value_diff) to be written as the first noise-containing band. Any following noise energy values use the previous one to base their "diff" on. Ordinary scalefactors remain unchanged other than that they ignore the noise values. This commit should not change anything by itself, the following commits will bring it in use. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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