V4L/DVB: v4l: add V4L2_PIX_FMT_Y4 and V4L2_PIX_FMT_Y6 pixelformats
Old 4 and 6 bit greyscale pixel formats for the old bw-qcam webcam. This is needed to convert it to V4L2. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -792,6 +792,18 @@ http://www.thedirks.org/winnov/</ulink></para></entry>
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<entry>'YYUV'</entry>
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<entry>unknown</entry>
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</row>
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<row id="V4L2-PIX-FMT-Y4">
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<entry><constant>V4L2_PIX_FMT_Y4</constant></entry>
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<entry>'Y04 '</entry>
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<entry>Old 4-bit greyscale format. Only the least significant 4 bits of each byte are used,
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the other bits are set to 0.</entry>
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</row>
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<row id="V4L2-PIX-FMT-Y6">
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<entry><constant>V4L2_PIX_FMT_Y6</constant></entry>
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<entry>'Y06 '</entry>
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<entry>Old 6-bit greyscale format. Only the least significant 6 bits of each byte are used,
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the other bits are set to 0.</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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@ -294,6 +294,8 @@ struct v4l2_pix_format {
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/* Grey formats */
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#define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
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#define V4L2_PIX_FMT_Y4 v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale */
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#define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */
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#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
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#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
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