riff: remove invalid fourcc 'exr '

Signed-off-by: Paul B Mahol <onemda@gmail.com>
avcodec/ra288: use init_get_bits8()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/svq1dec: use init_get_bits8()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/h261dec: use init_get_bits8()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/sonic: Fix usage of init_get_bits() and use init_get_bits8()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>