and LFE bandwidth optimizations, and 255 for independent streams with an
unspecified channel layout.
+@item apply_phase_inv (N.A.) (requires libopus >= 1.2)
+If set to 0, disables the use of phase inversion for intensity stereo,
+improving the quality of mono downmixes, but slightly reducing normal stereo
+quality. The default is 1 (phase inversion enabled).
+
@end table
@anchor{libshine}
@item tune
Set the x265 tune parameter.
+@item profile
+Set profile restrictions.
+
+@item crf
+Set the quality for constant quality mode.
+
@item forced-idr
Normally, when forcing a I-frame type, the encoder can select any type
of I-frame. This option forces it to choose an IDR-frame.
@itemx always
Always write it.
@end table
+@item video_format @var{integer}
+Specifies the video_format written into the sequence display extension
+indicating the source of the video pictures. The default is @samp{unspecified},
+can be @samp{component}, @samp{pal}, @samp{ntsc}, @samp{secam} or @samp{mac}.
+For maximum compatibility, use @samp{component}.
@end table
@section png