diff options
Diffstat (limited to 'v4l2-spec/vidioc-g-modulator.sgml')
| -rw-r--r-- | v4l2-spec/vidioc-g-modulator.sgml | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/v4l2-spec/vidioc-g-modulator.sgml b/v4l2-spec/vidioc-g-modulator.sgml index e5d4a3f24..945147f90 100644 --- a/v4l2-spec/vidioc-g-modulator.sgml +++ b/v4l2-spec/vidioc-g-modulator.sgml @@ -166,7 +166,7 @@ combine with <constant>V4L2_TUNER_SUB_STEREO</constant> or channel of a stereo audio signal. When the input has only one channel or two channels and <constant>V4L2_TUNER_SUB_SAP</constant> is also set, channel 1 is encoded as left and right channel. This flag does -not combine with <constant>V4L2_TUNER_SUB_MONO </constant> or +not combine with <constant>V4L2_TUNER_SUB_MONO</constant> or <constant>V4L2_TUNER_SUB_LANG1</constant>. When the driver does not support stereo audio it shall fall back to mono.</entry> </row> @@ -177,8 +177,9 @@ support stereo audio it shall fall back to mono.</entry> language of a bilingual audio signal. When the input has only one channel it is used for both languages. It is not possible to encode the primary or secondary language only. This flag does not combine -with <constant>V4L2_TUNER_SUB_MONO </constant> or -<constant>V4L2_TUNER_SUB_STEREO</constant>. If the hardware does not +with <constant>V4L2_TUNER_SUB_MONO</constant>, +<constant>V4L2_TUNER_SUB_STEREO</constant> or +<constant>V4L2_TUNER_SUB_SAP</constant>. If the hardware does not support the respective audio matrix, or the current video standard does not permit bilingual audio the <constant>VIDIOC_S_MODULATOR</constant> ioctl shall return an &EINVAL; @@ -188,7 +189,7 @@ and the driver shall fall back to mono or stereo mode.</entry> <entry><constant>V4L2_TUNER_SUB_LANG2</constant></entry> <entry>0x0004</entry> <entry>Same effect as -<constant>V4L2_TUNER_SUB_LANG1</constant>.</entry> +<constant>V4L2_TUNER_SUB_SAP</constant>.</entry> </row> <row> <entry><constant>V4L2_TUNER_SUB_SAP</constant></entry> @@ -198,7 +199,7 @@ and the driver shall fall back to mono or stereo mode.</entry> channel as Second Audio Program. When the input has only one channel it is used for both audio tracks. When the input has three channels the mono track is a down-mix of channel 1 and 2. When combined with -<constant>V4L2_TUNER_SUB_STEREO </constant> channel 1 and 2 are +<constant>V4L2_TUNER_SUB_STEREO</constant> channel 1 and 2 are encoded as left and right stereo audio, channel 3 as Second Audio Program. When the input has only two channels, the first is encoded as left and right channel and the second as SAP. When the input has only @@ -207,10 +208,15 @@ encode a Second Audio Program only. This flag must combine with <constant>V4L2_TUNER_SUB_MONO</constant> or <constant>V4L2_TUNER_SUB_STEREO</constant>. If the hardware does not support the respective audio matrix, or the current video standard -does not permit SAP the <constant> VIDIOC_S_MODULATOR</constant> ioctl +does not permit SAP the <constant>VIDIOC_S_MODULATOR</constant> ioctl shall return an &EINVAL; and driver shall fall back to mono or stereo mode.</entry> </row> + <row> + <entry><constant>V4L2_TUNER_SUB_RDS</constant></entry> + <entry>0x0010</entry> + <entry>Enable the RDS encoder for a radio FM transmitter.</entry> + </row> </tbody> </tgroup> </table> |