• FFmpeg has hundreds of codecs, there is -and there never was- any reason to explicit the atrac3[p] decoders since it is not an external library. These 2 lines can be dropped:
--enable-decoder=atrac3 \
--enable-decoder=atrac3p \

• Archlinux probably doesn't care about DirectX Video Acceleration. The following line can be dropped:
--enable-dxva2 \

• Enabling explicit Position-independent code is not useful. FFmpeg does that by default when it matters, typically when --enable-shared is set. The following line can be dropped:
--enable-pic \

• libpostproc is enabled by default since a very long time, the following line can be dropped:
--enable-postproc \

By the way, FFmpeg 2.4 has been released, so you will probably want to add --enable-fribidi so the drawtext filter can be used to write correctly Arabic text.