[media] V4L: Add VP8 encoder controls
This patch adds new V4L controls for VP8 encoding. Signed-off-by: Kiran AVND <avnd.kiran@samsung.com> Signed-off-by: Arun Kumar K <arun.kk@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Arun Kumar K
Mauro Carvalho Chehab
parent
d1e9b7c12b
commit
bc9028e1d3
@ -722,17 +722,22 @@ for more details.</para>
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</section>
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<section id="mpeg-controls">
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<title>MPEG Control Reference</title>
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<title>Codec Control Reference</title>
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<para>Below all controls within the MPEG control class are
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<para>Below all controls within the Codec control class are
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described. First the generic controls, then controls specific for
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certain hardware.</para>
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<para>Note: These controls are applicable to all codecs and
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not just MPEG. The defines are prefixed with V4L2_CID_MPEG/V4L2_MPEG
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as the controls were originally made for MPEG codecs and later
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extended to cover all encoding formats.</para>
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<section>
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<title>Generic MPEG Controls</title>
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<title>Generic Codec Controls</title>
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<table pgwide="1" frame="none" id="mpeg-control-id">
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<title>MPEG Control IDs</title>
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<title>Codec Control IDs</title>
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<tgroup cols="4">
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<colspec colname="c1" colwidth="1*" />
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<colspec colname="c2" colwidth="6*" />
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@ -752,7 +757,7 @@ certain hardware.</para>
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<row>
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<entry spanname="id"><constant>V4L2_CID_MPEG_CLASS</constant> </entry>
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<entry>class</entry>
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</row><row><entry spanname="descr">The MPEG class
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</row><row><entry spanname="descr">The Codec class
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descriptor. Calling &VIDIOC-QUERYCTRL; for this control will return a
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description of this control class. This description can be used as the
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caption of a Tab page in a GUI, for example.</entry>
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@ -3009,6 +3014,159 @@ in by the application. 0 = do not insert, 1 = insert packets.</entry>
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</tgroup>
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</table>
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</section>
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<section>
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<title>VPX Control Reference</title>
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<para>The VPX controls include controls for encoding parameters
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of VPx video codec.</para>
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<table pgwide="1" frame="none" id="vpx-control-id">
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<title>VPX Control IDs</title>
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<tgroup cols="4">
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<colspec colname="c1" colwidth="1*" />
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<colspec colname="c2" colwidth="6*" />
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<colspec colname="c3" colwidth="2*" />
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<colspec colname="c4" colwidth="6*" />
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<spanspec namest="c1" nameend="c2" spanname="id" />
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<spanspec namest="c2" nameend="c4" spanname="descr" />
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<thead>
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<row>
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<entry spanname="id" align="left">ID</entry>
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<entry align="left">Type</entry>
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</row><row rowsep="1"><entry spanname="descr" align="left">Description</entry>
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</row>
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</thead>
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<tbody valign="top">
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<row><entry></entry></row>
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<row><entry></entry></row>
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<row id="v4l2-vpx-num-partitions">
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<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS</constant></entry>
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<entry>enum v4l2_vp8_num_partitions</entry>
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</row>
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<row><entry spanname="descr">The number of token partitions to use in VP8 encoder.
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Possible values are:</entry>
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</row>
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<row>
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<entrytbl spanname="descr" cols="2">
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<tbody valign="top">
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<row>
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<entry><constant>V4L2_CID_MPEG_VIDEO_VPX_1_PARTITION</constant></entry>
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<entry>1 coefficient partition</entry>
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</row>
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<row>
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<entry><constant>V4L2_CID_MPEG_VIDEO_VPX_2_PARTITIONS</constant></entry>
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<entry>2 coefficient partitions</entry>
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</row>
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<row>
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<entry><constant>V4L2_CID_MPEG_VIDEO_VPX_4_PARTITIONS</constant></entry>
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<entry>4 coefficient partitions</entry>
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</row>
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<row>
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<entry><constant>V4L2_CID_MPEG_VIDEO_VPX_8_PARTITIONS</constant></entry>
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<entry>8 coefficient partitions</entry>
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</row>
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</tbody>
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</entrytbl>
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</row>
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<row><entry></entry></row>
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<row>
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<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_VPX_IMD_DISABLE_4X4</constant></entry>
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<entry>boolean</entry>
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</row>
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<row><entry spanname="descr">Setting this prevents intra 4x4 mode in the intra mode decision.</entry>
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</row>
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<row><entry></entry></row>
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<row id="v4l2-vpx-num-ref-frames">
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<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES</constant></entry>
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<entry>enum v4l2_vp8_num_ref_frames</entry>
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</row>
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<row><entry spanname="descr">The number of reference pictures for encoding P frames.
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Possible values are:</entry>
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</row>
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<row>
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<entrytbl spanname="descr" cols="2">
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<tbody valign="top">
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<row>
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<entry><constant>V4L2_CID_MPEG_VIDEO_VPX_1_REF_FRAME</constant></entry>
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<entry>Last encoded frame will be searched</entry>
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</row>
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<row>
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<entry><constant>V4L2_CID_MPEG_VIDEO_VPX_2_REF_FRAME</constant></entry>
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<entry>Two frames will be searched among the last encoded frame, the golden frame
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and the alternate reference (altref) frame. The encoder implementation will decide which two are chosen.</entry>
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</row>
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<row>
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<entry><constant>V4L2_CID_MPEG_VIDEO_VPX_3_REF_FRAME</constant></entry>
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<entry>The last encoded frame, the golden frame and the altref frame will be searched.</entry>
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</row>
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</tbody>
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</entrytbl>
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</row>
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<row><entry></entry></row>
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<row>
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<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_VPX_FILTER_LEVEL</constant></entry>
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<entry>integer</entry>
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</row>
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<row><entry spanname="descr">Indicates the loop filter level. The adjustment of the loop
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filter level is done via a delta value against a baseline loop filter value.</entry>
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</row>
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<row><entry></entry></row>
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<row>
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<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_VPX_FILTER_SHARPNESS</constant></entry>
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<entry>integer</entry>
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</row>
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<row><entry spanname="descr">This parameter affects the loop filter. Anything above
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zero weakens the deblocking effect on the loop filter.</entry>
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</row>
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<row><entry></entry></row>
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<row>
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<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_REF_PERIOD</constant></entry>
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<entry>integer</entry>
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</row>
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<row><entry spanname="descr">Sets the refresh period for the golden frame. The period is defined
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in number of frames. For a value of 'n', every nth frame starting from the first key frame will be taken as a golden frame.
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For eg. for encoding sequence of 0, 1, 2, 3, 4, 5, 6, 7 where the golden frame refresh period is set as 4, the frames
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0, 4, 8 etc will be taken as the golden frames as frame 0 is always a key frame.</entry>
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</row>
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<row><entry></entry></row>
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<row id="v4l2-vpx-golden-frame-sel">
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<entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL</constant></entry>
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<entry>enum v4l2_vp8_golden_frame_sel</entry>
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</row>
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<row><entry spanname="descr">Selects the golden frame for encoding.
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Possible values are:</entry>
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</row>
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<row>
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<entrytbl spanname="descr" cols="2">
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<tbody valign="top">
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<row>
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<entry><constant>V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_USE_PREV</constant></entry>
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<entry>Use the (n-2)th frame as a golden frame, current frame index being 'n'.</entry>
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</row>
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<row>
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<entry><constant>V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_USE_REF_PERIOD</constant></entry>
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<entry>Use the previous specific frame indicated by
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V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_REF_PERIOD as a golden frame.</entry>
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</row>
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</tbody>
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</entrytbl>
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</row>
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<row><entry></entry></row>
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</tbody>
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</tgroup>
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</table>
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</section>
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</section>
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<section id="camera-controls">
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@ -424,6 +424,12 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
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NULL,
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};
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static const char * const vpx_golden_frame_sel[] = {
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"Use Previous Frame",
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"Use Previous Specific Frame",
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NULL,
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};
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static const char * const flash_led_mode[] = {
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"Off",
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"Flash",
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@ -538,6 +544,8 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
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return mpeg_mpeg4_level;
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case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
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return mpeg4_profile;
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case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL:
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return vpx_golden_frame_sel;
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case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
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return jpeg_chroma_subsampling;
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case V4L2_CID_DV_TX_MODE:
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@ -552,13 +560,26 @@ const char * const *v4l2_ctrl_get_menu(u32 id)
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}
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EXPORT_SYMBOL(v4l2_ctrl_get_menu);
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#define __v4l2_qmenu_int_len(arr, len) ({ *(len) = ARRAY_SIZE(arr); arr; })
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/*
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* Returns NULL or an s64 type array containing the menu for given
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* control ID. The total number of the menu items is returned in @len.
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*/
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const s64 const *v4l2_ctrl_get_int_menu(u32 id, u32 *len)
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{
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static const s64 const qmenu_int_vpx_num_partitions[] = {
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1, 2, 4, 8,
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};
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static const s64 const qmenu_int_vpx_num_ref_frames[] = {
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1, 2, 3,
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};
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switch (id) {
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case V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS:
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return __v4l2_qmenu_int_len(qmenu_int_vpx_num_partitions, len);
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case V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES:
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return __v4l2_qmenu_int_len(qmenu_int_vpx_num_ref_frames, len);
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default:
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*len = 0;
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return NULL;
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@ -614,9 +635,11 @@ const char *v4l2_ctrl_get_name(u32 id)
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case V4L2_CID_ALPHA_COMPONENT: return "Alpha Component";
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case V4L2_CID_COLORFX_CBCR: return "Color Effects, CbCr";
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/* MPEG controls */
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/* Codec controls */
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/* The MPEG controls are applicable to all codec controls
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* and the 'MPEG' part of the define is historical */
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/* Keep the order of the 'case's the same as in videodev2.h! */
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case V4L2_CID_MPEG_CLASS: return "MPEG Encoder Controls";
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case V4L2_CID_MPEG_CLASS: return "Codec Controls";
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case V4L2_CID_MPEG_STREAM_TYPE: return "Stream Type";
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case V4L2_CID_MPEG_STREAM_PID_PMT: return "Stream PMT Program ID";
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case V4L2_CID_MPEG_STREAM_PID_AUDIO: return "Stream Audio Program ID";
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@ -714,6 +737,15 @@ const char *v4l2_ctrl_get_name(u32 id)
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case V4L2_CID_MPEG_VIDEO_VBV_DELAY: return "Initial Delay for VBV Control";
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case V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER: return "Repeat Sequence Header";
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/* VPX controls */
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case V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS: return "VPX Number of Partitions";
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case V4L2_CID_MPEG_VIDEO_VPX_IMD_DISABLE_4X4: return "VPX Intra Mode Decision Disable";
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case V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES: return "VPX No. of Refs for P Frame";
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case V4L2_CID_MPEG_VIDEO_VPX_FILTER_LEVEL: return "VPX Loop Filter Level Range";
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case V4L2_CID_MPEG_VIDEO_VPX_FILTER_SHARPNESS: return "VPX Deblocking Effect Control";
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case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_REF_PERIOD: return "VPX Golden Frame Refresh Period";
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case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL: return "VPX Golden Frame Indicator";
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/* CAMERA controls */
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/* Keep the order of the 'case's the same as in videodev2.h! */
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case V4L2_CID_CAMERA_CLASS: return "Camera Controls";
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@ -928,6 +960,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
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case V4L2_CID_DV_RX_RGB_RANGE:
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case V4L2_CID_TEST_PATTERN:
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case V4L2_CID_TUNE_DEEMPHASIS:
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case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL:
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*type = V4L2_CTRL_TYPE_MENU;
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break;
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case V4L2_CID_LINK_FREQ:
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@ -939,6 +972,8 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
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break;
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case V4L2_CID_ISO_SENSITIVITY:
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case V4L2_CID_AUTO_EXPOSURE_BIAS:
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case V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS:
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case V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES:
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*type = V4L2_CTRL_TYPE_INTEGER_MENU;
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break;
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case V4L2_CID_USER_CLASS:
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@ -161,6 +161,8 @@ enum v4l2_colorfx {
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#define V4L2_CID_USER_SI476X_BASE (V4L2_CID_USER_BASE + 0x1040)
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/* MPEG-class control IDs */
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/* The MPEG controls are applicable to all codec controls
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* and the 'MPEG' part of the define is historical */
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#define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900)
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#define V4L2_CID_MPEG_CLASS (V4L2_CTRL_CLASS_MPEG | 1)
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@ -522,6 +524,33 @@ enum v4l2_mpeg_video_mpeg4_profile {
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};
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#define V4L2_CID_MPEG_VIDEO_MPEG4_QPEL (V4L2_CID_MPEG_BASE+407)
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/* Control IDs for VP8 streams
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* Although VP8 is not part of MPEG we add these controls to the MPEG class
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* as that class is already handling other video compression standards
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*/
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#define V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS (V4L2_CID_MPEG_BASE+500)
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enum v4l2_vp8_num_partitions {
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V4L2_CID_MPEG_VIDEO_VPX_1_PARTITION = 0,
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V4L2_CID_MPEG_VIDEO_VPX_2_PARTITIONS = 1,
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V4L2_CID_MPEG_VIDEO_VPX_4_PARTITIONS = 2,
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V4L2_CID_MPEG_VIDEO_VPX_8_PARTITIONS = 3,
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};
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#define V4L2_CID_MPEG_VIDEO_VPX_IMD_DISABLE_4X4 (V4L2_CID_MPEG_BASE+501)
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#define V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES (V4L2_CID_MPEG_BASE+502)
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enum v4l2_vp8_num_ref_frames {
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V4L2_CID_MPEG_VIDEO_VPX_1_REF_FRAME = 0,
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V4L2_CID_MPEG_VIDEO_VPX_2_REF_FRAME = 1,
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V4L2_CID_MPEG_VIDEO_VPX_3_REF_FRAME = 2,
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};
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#define V4L2_CID_MPEG_VIDEO_VPX_FILTER_LEVEL (V4L2_CID_MPEG_BASE+503)
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#define V4L2_CID_MPEG_VIDEO_VPX_FILTER_SHARPNESS (V4L2_CID_MPEG_BASE+504)
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#define V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_REF_PERIOD (V4L2_CID_MPEG_BASE+505)
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#define V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL (V4L2_CID_MPEG_BASE+506)
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enum v4l2_vp8_golden_frame_sel {
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V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_USE_PREV = 0,
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V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_USE_REF_PERIOD = 1,
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};
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/* MPEG-class control IDs specific to the CX2341x driver as defined by V4L2 */
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#define V4L2_CID_MPEG_CX2341X_BASE (V4L2_CTRL_CLASS_MPEG | 0x1000)
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#define V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE (V4L2_CID_MPEG_CX2341X_BASE+0)
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