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| author | Antti Palosaari <crope@iki.fi> | 2014-01-31 07:29:46 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-03-13 17:26:46 +0400 |
| commit | e6001abcc559738934015da56bbbf7615d076d8e (patch) | |
| tree | 31142e865661edfe6f97ab509399d55b7d8916c7 /Documentation/DocBook | |
| parent | 0a670c42f26de8e65f4e61130bfb84ae1488d8c9 (diff) | |
| download | linux-e6001abcc559738934015da56bbbf7615d076d8e.tar.xz | |
[media] DocBook: V4L: add V4L2_SDR_FMT_CU16LE - 'CU16'
Document V4L2_SDR_FMT_CU16LE format.
It is complex unsigned 16-bit little endian IQ sample. Used by
software defined radio devices.
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'Documentation/DocBook')
| -rw-r--r-- | Documentation/DocBook/media/v4l/pixfmt-sdr-cu16le.xml | 46 | ||||
| -rw-r--r-- | Documentation/DocBook/media/v4l/pixfmt.xml | 1 |
2 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/DocBook/media/v4l/pixfmt-sdr-cu16le.xml b/Documentation/DocBook/media/v4l/pixfmt-sdr-cu16le.xml new file mode 100644 index 000000000000..26288ffa9071 --- /dev/null +++ b/Documentation/DocBook/media/v4l/pixfmt-sdr-cu16le.xml @@ -0,0 +1,46 @@ +<refentry id="V4L2-SDR-FMT-CU16LE"> + <refmeta> + <refentrytitle>V4L2_SDR_FMT_CU16LE ('CU16')</refentrytitle> + &manvol; + </refmeta> + <refnamediv> + <refname> + <constant>V4L2_SDR_FMT_CU16LE</constant> + </refname> + <refpurpose>Complex unsigned 16-bit little endian IQ sample</refpurpose> + </refnamediv> + <refsect1> + <title>Description</title> + <para> +This format contains sequence of complex number samples. Each complex number +consist two parts, called In-phase and Quadrature (IQ). Both I and Q are +represented as a 16 bit unsigned little endian number. I value comes first +and Q value after that. + </para> + <example> + <title><constant>V4L2_SDR_FMT_CU16LE</constant> 1 sample</title> + <formalpara> + <title>Byte Order.</title> + <para>Each cell is one byte. + <informaltable frame="none"> + <tgroup cols="3" align="center"> + <colspec align="left" colwidth="2*" /> + <tbody valign="top"> + <row> + <entry>start + 0:</entry> + <entry>I'<subscript>0[7:0]</subscript></entry> + <entry>I'<subscript>0[15:8]</subscript></entry> + </row> + <row> + <entry>start + 2:</entry> + <entry>Q'<subscript>0[7:0]</subscript></entry> + <entry>Q'<subscript>0[15:8]</subscript></entry> + </row> + </tbody> + </tgroup> + </informaltable> + </para> + </formalpara> + </example> + </refsect1> +</refentry> diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index 40adcb87da60..f535d9ba5111 100644 --- a/Documentation/DocBook/media/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -818,6 +818,7 @@ extended control <constant>V4L2_CID_MPEG_STREAM_TYPE</constant>, see interface only.</para> &sub-sdr-cu08; + &sub-sdr-cu16le; </section> |