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authorAlessandro Ghedini <alessandro@ghedini.me>2014-04-04 11:50:44 +0200
committerAnton Khirnov <anton@khirnov.net>2014-04-04 17:40:19 +0200
commit8542f9c4f17125d483c40c0c5723842f1c982f81 (patch)
tree3981a5b0ca00cd6e3d3f47725dc7e3ff1050c9bd /libavcodec/indeo4data.h
parent25b6837f7cacd691b19cbc12b9dad1ce84a318a1 (diff)
downloadffmpeg-8542f9c4f17125d483c40c0c5723842f1c982f81.tar.gz
replaygain: correctly parse peak values
According to the ReplayGain spec, the peak amplitude may overflow and may result in peak amplitude values greater than 1.0 with psychoacoustically coded audio, such as MP3. Fully compliant decoders must allow peak overflows. Additionally, having peak values in the 0<->UINT32_MAX scale makes it more difficult for applications to actually use the peak values (e.g. when implementing clipping prevention) since values have to be rescaled down. This patch corrects the peak parsing by removing the rescaling of the decoded values between 0 and UINT32_MAX and the 1.0 upper limit. Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavcodec/indeo4data.h')
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