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dcherednik / atracdenc

Dirty implementation of ATRAC1, ATRAC3 encoder
GNU Lesser General Public License v2.1
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ATRAC 3 Plus #13

Open Invictaz opened 4 years ago

Invictaz commented 4 years ago

We have the decoder: https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/atrac3plus.c

And an encoder (however not open-source) and it only accepts 48KHZ WAV not standard 44.1 KHZ

Can you make an open source encoder with selectable options?

image

dcherednik commented 4 years ago

Can you find someone who can write analysis filterbank by this synthesis ? https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/atrac3plusdsp.c#L502-L645

My knowledge of math is not enough to make it for couple of weekends)

Invictaz commented 4 years ago

I will try to look into it.