diff options
Diffstat (limited to 'Documentation/DocBook/media')
-rw-r--r-- | Documentation/DocBook/media/v4l/controls.xml | 58 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/media-ioc-g-topology.xml | 3 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/media-types.xml | 85 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/pixfmt-y12i.xml | 49 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/pixfmt-y8i.xml | 80 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml | 26 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml (renamed from Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml) | 106 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml | 177 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/pixfmt-z16.xml | 81 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/pixfmt.xml | 13 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-query-dv-timings.xml | 14 | ||||
-rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-querystd.xml | 10 |
12 files changed, 635 insertions, 67 deletions
diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index f13a429093f1..361040e6b0f4 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -2330,6 +2330,14 @@ vertical search range for motion estimation module in video encoder.</entry> </row> <row><entry></entry></row> + <row id="v4l2-mpeg-video-force-key-frame"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME</constant> </entry> + <entry>button</entry> + </row><row><entry spanname="descr">Force a key frame for the next queued buffer. Applicable to encoders. +This is a general, codec-agnostic keyframe control.</entry> + </row> + + <row><entry></entry></row> <row> <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE</constant> </entry> <entry>integer</entry> @@ -5070,6 +5078,46 @@ interface and may change in the future.</para> </entry> </row> <row> + <entry spanname="id"><constant>V4L2_CID_DV_TX_IT_CONTENT_TYPE</constant></entry> + <entry id="v4l2-dv-content-type">enum v4l2_dv_it_content_type</entry> + </row> + <row><entry spanname="descr">Configures the IT Content Type + of the transmitted video. This information is sent over HDMI and DisplayPort connectors + as part of the AVI InfoFrame. The term 'IT Content' is used for content that originates + from a computer as opposed to content from a TV broadcast or an analog source. The + enum v4l2_dv_it_content_type defines the possible content types:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_DV_IT_CONTENT_TYPE_GRAPHICS</constant> </entry> + <entry>Graphics content. Pixel data should be passed unfiltered and without + analog reconstruction.</entry> + </row> + <row> + <entry><constant>V4L2_DV_IT_CONTENT_TYPE_PHOTO</constant> </entry> + <entry>Photo content. The content is derived from digital still pictures. + The content should be passed through with minimal scaling and picture + enhancements.</entry> + </row> + <row> + <entry><constant>V4L2_DV_IT_CONTENT_TYPE_CINEMA</constant> </entry> + <entry>Cinema content.</entry> + </row> + <row> + <entry><constant>V4L2_DV_IT_CONTENT_TYPE_GAME</constant> </entry> + <entry>Game content. Audio and video latency should be minimized.</entry> + </row> + <row> + <entry><constant>V4L2_DV_IT_CONTENT_TYPE_NO_ITC</constant> </entry> + <entry>No IT Content information is available and the ITC bit in the AVI + InfoFrame is set to 0.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row> <entry spanname="id"><constant>V4L2_CID_DV_RX_POWER_PRESENT</constant></entry> <entry>bitmask</entry> </row> @@ -5098,6 +5146,16 @@ interface and may change in the future.</para> This control is applicable to VGA, DVI-A/D, HDMI and DisplayPort connectors. </entry> </row> + <row> + <entry spanname="id"><constant>V4L2_CID_DV_RX_IT_CONTENT_TYPE</constant></entry> + <entry>enum v4l2_dv_it_content_type</entry> + </row> + <row><entry spanname="descr">Reads the IT Content Type + of the received video. This information is sent over HDMI and DisplayPort connectors + as part of the AVI InfoFrame. The term 'IT Content' is used for content that originates + from a computer as opposed to content from a TV broadcast or an analog source. See + <constant>V4L2_CID_DV_TX_IT_CONTENT_TYPE</constant> for the available content types.</entry> + </row> <row><entry></entry></row> </tbody> </tgroup> diff --git a/Documentation/DocBook/media/v4l/media-ioc-g-topology.xml b/Documentation/DocBook/media/v4l/media-ioc-g-topology.xml index 63152ab9efba..e0d49fa329f0 100644 --- a/Documentation/DocBook/media/v4l/media-ioc-g-topology.xml +++ b/Documentation/DocBook/media/v4l/media-ioc-g-topology.xml @@ -48,9 +48,6 @@ <refsect1> <title>Description</title> - - <para><emphasis role="bold">NOTE:</emphasis> This new ioctl is programmed to be added on Kernel 4.6. Its definition/arguments may change until its final version.</para> - <para>The typical usage of this ioctl is to call it twice. On the first call, the structure defined at &media-v2-topology; should be zeroed. At return, if no errors happen, this ioctl will return the diff --git a/Documentation/DocBook/media/v4l/media-types.xml b/Documentation/DocBook/media/v4l/media-types.xml index 1af384250910..5e3f20fdcf17 100644 --- a/Documentation/DocBook/media/v4l/media-types.xml +++ b/Documentation/DocBook/media/v4l/media-types.xml @@ -57,10 +57,6 @@ <entry>Connector for a RGB composite signal.</entry> </row> <row> - <entry><constant>MEDIA_ENT_F_CONN_TEST</constant></entry> - <entry>Connector for a test generator.</entry> - </row> - <row> <entry><constant>MEDIA_ENT_F_CAM_SENSOR</constant></entry> <entry>Camera video sensor entity.</entry> </row> @@ -84,7 +80,46 @@ </row> <row> <entry><constant>MEDIA_ENT_F_TUNER</constant></entry> - <entry>Digital TV, analog TV, radio and/or software radio tuner.</entry> + <entry>Digital TV, analog TV, radio and/or software radio tuner, + with consists on a PLL tuning stage that converts radio + frequency (RF) signal into an Intermediate Frequency (IF). + Modern tuners have internally IF-PLL decoders for audio + and video, but older models have those stages implemented + on separate entities. + </entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_IF_VID_DECODER</constant></entry> + <entry>IF-PLL video decoder. It receives the IF from a PLL + and decodes the analog TV video signal. This is commonly + found on some very old analog tuners, like Philips MK3 + designs. They all contain a tda9887 (or some software + compatible similar chip, like tda9885). Those devices + use a different I2C address than the tuner PLL. + </entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_IF_AUD_DECODER</constant></entry> + <entry>IF-PLL sound decoder. It receives the IF from a PLL + and decodes the analog TV audio signal. This is commonly + found on some very old analog hardware, like Micronas + msp3400, Philips tda9840, tda985x, etc. Those devices + use a different I2C address than the tuner PLL and + should be controlled together with the IF-PLL video + decoder. + </entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_AUDIO_CAPTURE</constant></entry> + <entry>Audio Capture Function Entity.</entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_AUDIO_PLAYBACK</constant></entry> + <entry>Audio Playback Function Entity.</entry> + </row> + <row> + <entry><constant>MEDIA_ENT_F_AUDIO_MIXER</constant></entry> + <entry>Audio Mixer Function Entity.</entry> </row> </tbody> </tgroup> @@ -166,6 +201,46 @@ <entry>Device node interface for Software Defined Radio (V4L)</entry> <entry>typically, /dev/swradio?</entry> </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_PCM_CAPTURE</constant></entry> + <entry>Device node interface for ALSA PCM Capture</entry> + <entry>typically, /dev/snd/pcmC?D?c</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_PCM_PLAYBACK</constant></entry> + <entry>Device node interface for ALSA PCM Playback</entry> + <entry>typically, /dev/snd/pcmC?D?p</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_CONTROL</constant></entry> + <entry>Device node interface for ALSA Control</entry> + <entry>typically, /dev/snd/controlC?</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_COMPRESS</constant></entry> + <entry>Device node interface for ALSA Compress</entry> + <entry>typically, /dev/snd/compr?</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_RAWMIDI</constant></entry> + <entry>Device node interface for ALSA Raw MIDI</entry> + <entry>typically, /dev/snd/midi?</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_HWDEP</constant></entry> + <entry>Device node interface for ALSA Hardware Dependent</entry> + <entry>typically, /dev/snd/hwC?D?</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_SEQUENCER</constant></entry> + <entry>Device node interface for ALSA Sequencer</entry> + <entry>typically, /dev/snd/seq</entry> + </row> + <row> + <entry><constant>MEDIA_INTF_T_ALSA_TIMER</constant></entry> + <entry>Device node interface for ALSA Timer</entry> + <entry>typically, /dev/snd/timer</entry> + </row> </tbody> </tgroup> </table> diff --git a/Documentation/DocBook/media/v4l/pixfmt-y12i.xml b/Documentation/DocBook/media/v4l/pixfmt-y12i.xml new file mode 100644 index 000000000000..4a2d1e5f67e4 --- /dev/null +++ b/Documentation/DocBook/media/v4l/pixfmt-y12i.xml @@ -0,0 +1,49 @@ +<refentry id="V4L2-PIX-FMT-Y12I"> + <refmeta> + <refentrytitle>V4L2_PIX_FMT_Y12I ('Y12I')</refentrytitle> + &manvol; + </refmeta> + <refnamediv> + <refname><constant>V4L2_PIX_FMT_Y12I</constant></refname> + <refpurpose>Interleaved grey-scale image, e.g. from a stereo-pair</refpurpose> + </refnamediv> + <refsect1> + <title>Description</title> + + <para>This is a grey-scale image with a depth of 12 bits per pixel, but with +pixels from 2 sources interleaved and bit-packed. Each pixel is stored in a +24-bit word in the little-endian order. On a little-endian machine these pixels +can be deinterlaced using</para> + +<para> +<programlisting> +__u8 *buf; +left0 = 0xfff & *(__u16 *)buf; +right0 = *(__u16 *)(buf + 1) >> 4; +</programlisting> +</para> + + <example> + <title><constant>V4L2_PIX_FMT_Y12I</constant> 2 pixel data stream taking 3 bytes</title> + + <formalpara> + <title>Bit-packed representation</title> + <para>pixels cross the byte boundary and have a ratio of 3 bytes for each + interleaved pixel. + <informaltable frame="all"> + <tgroup cols="3" align="center"> + <colspec align="left" colwidth="2*" /> + <tbody valign="top"> + <row> + <entry>Y'<subscript>0left[7:0]</subscript></entry> + <entry>Y'<subscript>0right[3:0]</subscript>Y'<subscript>0left[11:8]</subscript></entry> + <entry>Y'<subscript>0right[11:4]</subscript></entry> + </row> + </tbody> + </tgroup> + </informaltable> + </para> + </formalpara> + </example> + </refsect1> +</refentry> diff --git a/Documentation/DocBook/media/v4l/pixfmt-y8i.xml b/Documentation/DocBook/media/v4l/pixfmt-y8i.xml new file mode 100644 index 000000000000..99f389d4c6c8 --- /dev/null +++ b/Documentation/DocBook/media/v4l/pixfmt-y8i.xml @@ -0,0 +1,80 @@ +<refentry id="V4L2-PIX-FMT-Y8I"> + <refmeta> + <refentrytitle>V4L2_PIX_FMT_Y8I ('Y8I ')</refentrytitle> + &manvol; + </refmeta> + <refnamediv> + <refname><constant>V4L2_PIX_FMT_Y8I</constant></refname> + <refpurpose>Interleaved grey-scale image, e.g. from a stereo-pair</refpurpose> + </refnamediv> + <refsect1> + <title>Description</title> + + <para>This is a grey-scale image with a depth of 8 bits per pixel, but with +pixels from 2 sources interleaved. Each pixel is stored in a 16-bit word. E.g. +the R200 RealSense camera stores pixel from the left sensor in lower and from +the right sensor in the higher 8 bits.</para> + + <example> + <title><constant>V4L2_PIX_FMT_Y8I</constant> 4 × 4 +pixel image</title> + + <formalpara> + <title>Byte Order.</title> + <para>Each cell is one byte. + <informaltable frame="none"> + <tgroup cols="9" align="center"> + <colspec align="left" colwidth="2*" /> + <tbody valign="top"> + <row> + <entry>start + 0:</entry> + <entry>Y'<subscript>00left</subscript></entry> + <entry>Y'<subscript>00right</subscript></entry> + <entry>Y'<subscript>01left</subscript></entry> + <entry>Y'<subscript>01right</subscript></entry> + <entry>Y'<subscript>02left</subscript></entry> + <entry>Y'<subscript>02right</subscript></entry> + <entry>Y'<subscript>03left</subscript></entry> + <entry>Y'<subscript>03right</subscript></entry> + </row> + <row> + <entry>start + 8:</entry> + <entry>Y'<subscript>10left</subscript></entry> + <entry>Y'<subscript>10right</subscript></entry> + <entry>Y'<subscript>11left</subscript></entry> + <entry>Y'<subscript>11right</subscript></entry> + <entry>Y'<subscript>12left</subscript></entry> + <entry>Y'<subscript>12right</subscript></entry> + <entry>Y'<subscript>13left</subscript></entry> + <entry>Y'<subscript>13right</subscript></entry> + </row> + <row> + <entry>start + 16:</entry> + <entry>Y'<subscript>20left</subscript></entry> + <entry>Y'<subscript>20right</subscript></entry> + <entry>Y'<subscript>21left</subscript></entry> + <entry>Y'<subscript>21right</subscript></entry> + <entry>Y'<subscript>22left</subscript></entry> + <entry>Y'<subscript>22right</subscript></entry> + <entry>Y'<subscript>23left</subscript></entry> + <entry>Y'<subscript>23right</subscript></entry> + </row> + <row> + <entry>start + 24:</entry> + <entry>Y'<subscript>30left</subscript></entry> + <entry>Y'<subscript>30right</subscript></entry> + <entry>Y'<subscript>31left</subscript></entry> + <entry>Y'<subscript>31right</subscript></entry> + <entry>Y'<subscript>32left</subscript></entry> + <entry>Y'<subscript>32right</subscript></entry> + <entry>Y'<subscript>33left</subscript></entry> + <entry>Y'<subscript>33right</subscript></entry> + </row> + </tbody> + </tgroup> + </informaltable> + </para> + </formalpara> + </example> + </refsect1> +</refentry> diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml index e781cc61786c..7d13fe96657d 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml @@ -1,35 +1,43 @@ - <refentry id="V4L2-PIX-FMT-YUV420M"> + <refentry> <refmeta> - <refentrytitle>V4L2_PIX_FMT_YUV420M ('YM12')</refentrytitle> + <refentrytitle>V4L2_PIX_FMT_YUV420M ('YM12'), V4L2_PIX_FMT_YVU420M ('YM21')</refentrytitle> &manvol; </refmeta> <refnamediv> - <refname> <constant>V4L2_PIX_FMT_YUV420M</constant></refname> - <refpurpose>Variation of <constant>V4L2_PIX_FMT_YUV420</constant> - with planes non contiguous in memory. </refpurpose> + <refname id="V4L2-PIX-FMT-YUV420M"><constant>V4L2_PIX_FMT_YUV420M</constant></refname> + <refname id="V4L2-PIX-FMT-YVU420M"><constant>V4L2_PIX_FMT_YVU420M</constant></refname> + <refpurpose>Variation of <constant>V4L2_PIX_FMT_YUV420</constant> and + <constant>V4L2_PIX_FMT_YVU420</constant> with planes non contiguous + in memory.</refpurpose> </refnamediv> <refsect1> <title>Description</title> <para>This is a multi-planar format, as opposed to a packed format. -The three components are separated into three sub- images or planes. +The three components are separated into three sub-images or planes.</para> -The Y plane is first. The Y plane has one byte per pixel. The Cb data + <para>The Y plane is first. The Y plane has one byte per pixel. +For <constant>V4L2_PIX_FMT_YUV420M</constant> the Cb data constitutes the second plane which is half the width and half the height of the Y plane (and of the image). Each Cb belongs to four pixels, a two-by-two square of the image. For example, Cb<subscript>0</subscript> belongs to Y'<subscript>00</subscript>, Y'<subscript>01</subscript>, Y'<subscript>10</subscript>, and Y'<subscript>11</subscript>. The Cr data, just like the Cb plane, is -in the third plane. </para> +in the third plane.</para> + + <para><constant>V4L2_PIX_FMT_YVU420M</constant> is the same except +the Cr data is stored in the second plane and the Cb data in the third plane. +</para> <para>If the Y plane has pad bytes after each row, then the Cb and Cr planes have half as many pad bytes after their rows. In other words, two Cx rows (including padding) is exactly as long as one Y row (including padding).</para> - <para><constant>V4L2_PIX_FMT_YUV420M</constant> is intended to be + <para><constant>V4L2_PIX_FMT_YUV420M</constant> and +<constant>V4L2_PIX_FMT_YVU420M</constant> are intended to be used only in drivers and applications that support the multi-planar API, described in <xref linkend="planar-apis"/>. </para> diff --git a/Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml index 2330667907c7..dd502802cb75 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv422m.xml @@ -1,40 +1,45 @@ - <refentry id="V4L2-PIX-FMT-YVU420M"> + <refentry> <refmeta> - <refentrytitle>V4L2_PIX_FMT_YVU420M ('YM21')</refentrytitle> + <refentrytitle>V4L2_PIX_FMT_YUV422M ('YM16'), V4L2_PIX_FMT_YVU422M ('YM61')</refentrytitle> &manvol; </refmeta> <refnamediv> - <refname> <constant>V4L2_PIX_FMT_YVU420M</constant></refname> - <refpurpose>Variation of <constant>V4L2_PIX_FMT_YVU420</constant> - with planes non contiguous in memory. </refpurpose> + <refname id="V4L2-PIX-FMT-YUV422M"><constant>V4L2_PIX_FMT_YUV422M</constant></refname> + <refname id="V4L2-PIX-FMT-YVU422M"><constant>V4L2_PIX_FMT_YVU422M</constant></refname> + <refpurpose>Planar formats with ½ horizontal resolution, also + known as YUV and YVU 4:2:2</refpurpose> </refnamediv> <refsect1> <title>Description</title> <para>This is a multi-planar format, as opposed to a packed format. -The three components are separated into three sub-images or planes. +The three components are separated into three sub-images or planes.</para> -The Y plane is first. The Y plane has one byte per pixel. The Cr data -constitutes the second plane which is half the width and half -the height of the Y plane (and of the image). Each Cr belongs to four -pixels, a two-by-two square of the image. For example, -Cr<subscript>0</subscript> belongs to Y'<subscript>00</subscript>, -Y'<subscript>01</subscript>, Y'<subscript>10</subscript>, and -Y'<subscript>11</subscript>. The Cb data, just like the Cr plane, constitutes -the third plane. </para> + <para>The Y plane is first. The Y plane has one byte per pixel. +For <constant>V4L2_PIX_FMT_YUV422M</constant> the Cb data +constitutes the second plane which is half the width of the Y plane (and of the +image). Each Cb belongs to two pixels. For example, +Cb<subscript>0</subscript> belongs to Y'<subscript>00</subscript>, +Y'<subscript>01</subscript>. The Cr data, just like the Cb plane, is +in the third plane. </para> - <para>If the Y plane has pad bytes after each row, then the Cr -and Cb planes have half as many pad bytes after their rows. In other + <para><constant>V4L2_PIX_FMT_YVU422M</constant> is the same except +the Cr data is stored in the second plane and the Cb data in the third plane. +</para> + + <para>If the Y plane has pad bytes after each row, then the Cb +and Cr planes have half as many pad bytes after their rows. In other words, two Cx rows (including padding) is exactly as long as one Y row (including padding).</para> - <para><constant>V4L2_PIX_FMT_YVU420M</constant> is intended to be + <para><constant>V4L2_PIX_FMT_YUV422M</constant> and +<constant>V4L2_PIX_FMT_YVU422M</constant> are intended to be used only in drivers and applications that support the multi-planar API, described in <xref linkend="planar-apis"/>. </para> <example> - <title><constant>V4L2_PIX_FMT_YVU420M</constant> 4 × 4 + <title><constant>V4L2_PIX_FMT_YUV422M</constant> 4 × 4 pixel image</title> <formalpara> @@ -75,24 +80,44 @@ pixel image</title> <row><entry></entry></row> <row> <entry>start1 + 0:</entry> - <entry>Cr<subscript>00</subscript></entry> - <entry>Cr<subscript>01</subscript></entry> + <entry>Cb<subscript>00</subscript></entry> + <entry>Cb<subscript>01</subscript></entry> </row> <row> <entry>start1 + 2:</entry> - <entry>Cr<subscript>10</subscript></entry> - <entry>Cr<subscript>11</subscript></entry> + <entry>Cb<subscript>10</subscript></entry> + <entry>Cb<subscript>11</subscript></entry> + </row> + <row> + <entry>start1 + 4:</entry> + <entry>Cb<subscript>20</subscript></entry> + <entry>Cb<subscript>21</subscript></entry> + </row> + <row> + <entry>start1 + 6:</entry> + <entry>Cb<subscript>30</subscript></entry> + <entry>Cb<subscript>31</subscript></entry> </row> <row><entry></entry></row> <row> <entry>start2 + 0:</entry> - <entry>Cb<subscript>00</subscript></entry> - <entry>Cb<subscript>01</subscript></entry> + <entry>Cr<subscript>00</subscript></entry> + <entry>Cr<subscript>01</subscript></entry> </row> <row> <entry>start2 + 2:</entry> - <entry>Cb<subscript>10</subscript></entry> - <entry>Cb<subscript>11</subscript></entry> + <entry>Cr<subscript>10</subscript></entry> + <entry>Cr<subscript>11</subscript></entry> + </row> + <row> + <entry>start2 + 4:</entry> + <entry>Cr<subscript>20</subscript></entry> + <entry>Cr<subscript>21</subscript></entry> + </row> + <row> + <entry>start2 + 6:</entry> + <entry>Cr<subscript>30</subscript></entry> + <entry>Cr<subscript>31</subscript></entry> </row> </tbody> </tgroup> @@ -113,36 +138,23 @@ pixel image</title> </row> <row> <entry>0</entry> - <entry>Y</entry><entry></entry><entry>Y</entry><entry></entry> - <entry>Y</entry><entry></entry><entry>Y</entry> - </row> - <row> - <entry></entry> - <entry></entry><entry>C</entry><entry></entry><entry></entry> - <entry></entry><entry>C</entry><entry></entry> + <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry> + <entry>Y</entry><entry>C</entry><entry>Y</entry> </row> <row> <entry>1</entry> - <entry>Y</entry><entry></entry><entry>Y</entry><entry></entry> - <entry>Y</entry><entry></entry><entry>Y</entry> - </row> - <row> - <entry></entry> + <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry> + <entry>Y</entry><entry>C</entry><entry>Y</entry> </row> <row> <entry>2</entry> - <entry>Y</entry><entry></entry><entry>Y</entry><entry></entry> - <entry>Y</entry><entry></entry><entry>Y</entry> - </row> - <row> - <entry></entry> - <entry></entry><entry>C</entry><entry></entry><entry></entry> - <entry></entry><entry>C</entry><entry></entry> + <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry> + <entry>Y</entry><entry>C</entry><entry>Y</entry> </row> <row> <entry>3</entry> - <entry>Y</entry><entry></entry><entry>Y</entry><entry></entry> - <entry>Y</entry><entry></entry><entry>Y</entry> + <entry>Y</entry><entry>C</entry><entry>Y</entry><entry></entry> + <entry>Y</entry><entry>C</entry><entry>Y</entry> </row> </tbody> </tgroup> diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml new file mode 100644 index 000000000000..1b7335940bc7 --- /dev/null +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv444m.xml @@ -0,0 +1,177 @@ + <refentry> + <refmeta> + <refentrytitle>V4L2_PIX_FMT_YUV444M ('YM24'), V4L2_PIX_FMT_YVU444M ('YM42')</refentrytitle> + &manvol; + </refmeta> + <refnamediv> + <refname id="V4L2-PIX-FMT-YUV444M"><constant>V4L2_PIX_FMT_YUV444M</constant></refname> + <refname id="V4L2-PIX-FMT-YVU444M"><constant>V4L2_PIX_FMT_YVU444M</constant></refname> + <refpurpose>Planar formats with full horizontal resolution, also + known as YUV and YVU 4:4:4</refpurpose> + </refnamediv> + + <refsect1> + <title>Description</title> + + <para>This is a multi-planar format, as opposed to a packed format. +The three components are separated into three sub-images or planes.</para> + + <para>The Y plane is first. The Y plane has one byte per pixel. +For <constant>V4L2_PIX_FMT_YUV444M</constant> the Cb data +constitutes the second plane which is the same width and height as the Y plane +(and as the image). The Cr data, just like the Cb plane, is in the third plane. +</para> + + <para><constant>V4L2_PIX_FMT_YVU444M</constant> is the same except +the Cr data is stored in the second plane and the Cb data in the third plane. +</para> + <para>If the Y plane has pad bytes after each row, then the Cb +and Cr planes have the same number of pad bytes after their rows.</para> + + <para><constant>V4L2_PIX_FMT_YUV444M</constant> and +<constant>V4L2_PIX_FMT_YUV444M</constant> are intended to be +used only in drivers and applications that support the multi-planar API, +described in <xref linkend="planar-apis"/>. </para> + + <example> + <title><constant>V4L2_PIX_FMT_YUV444M</constant> 4 × 4 +pixel image</title> + + <formalpara> + <title>Byte Order.</title> + <para>Each cell is one byte. + <informaltable frame="none"> + <tgroup cols="5" align="center"> + <colspec align="left" colwidth="2*" /> + <tbody valign="top"> + <row> + <entry>start0 + 0:</entry> + <entry>Y'<subscript>00</subscript></entry> + <entry>Y'<subscript>01</subscript></entry> + <entry>Y'<subscript>02</subscript></entry> + <entry>Y'<subscript>03</subscript></entry> + </row> + <row> + <entry>start0 + 4:</entry> + <entry>Y'<subscript>10</subscript></entry> + <entry>Y'<subscript>11</subscript></entry> + <entry>Y'<subscript>12</subscript></entry> + <entry>Y'<subscript>13</subscript></entry> + </row> + <row> + <entry>start0 + 8:</entry> + <entry>Y'<subscript>20</subscript></entry> + <entry>Y'<subscript>21</subscript></entry> + <entry>Y'<subscript>22</subscript></entry> + <entry>Y'<subscript>23</subscript></entry> + </row> + <row> + <entry>start0 + 12:</entry> + <entry>Y'<subscript>30</subscript></entry> + <entry>Y'<subscript>31</subscript></entry> + <entry>Y'<subscript>32</subscript></entry> + <entry>Y'<subscript>33</subscript></entry> + </row> + <row><entry></entry></row> + <row> + <entry>start1 + 0:</entry> + <entry>Cb<subscript>00</subscript></entry> + <entry>Cb<subscript>01</subscript></entry> + <entry>Cb<subscript>02</subscript></entry> + <entry>Cb<subscript>03</subscript></entry> + </row> + <row> + <entry>start1 + 4:</entry> + <entry>Cb<subscript>10</subscript></entry> + <entry>Cb<subscript>11</subscript></entry> + <entry>Cb<subscript>12</subscript></entry> + <entry>Cb<subscript>13</subscript></entry> + </row> + <row> + <entry>start1 + 8:</entry> + <entry>Cb<subscript>20</subscript></entry> + <entry>Cb<subscript>21</subscript></entry> + <entry>Cb<subscript>22</subscript></entry> + <entry>Cb<subscript>23</subscript></entry> + </row> + <row> + <entry>start1 + 12:</entry> + <entry>Cb<subscript>20</subscript></entry> + <entry>Cb<subscript>21</subscript></entry> + <entry>Cb<subscript>32</subscript></entry> + <entry>Cb<subscript>33</subscript></entry> + </row> + <row><entry></entry></row> + <row> + <entry>start2 + 0:</entry> + <entry>Cr<subscript>00</subscript></entry> + <entry>Cr<subscript>01</subscript></entry> + <entry>Cr<subscript>02</subscript></entry> + <entry>Cr<subscript>03</subscript></entry> + </row> + <row> + <entry>start2 + 4:</entry> + <entry>Cr<subscript>10</subscript></entry> + <entry>Cr<subscript>11</subscript></entry> + <entry>Cr<subscript>12</subscript></entry> + <entry>Cr<subscript>13</subscript></entry> + </row> + <row> + <entry>start2 + 8:</entry> + <entry>Cr<subscript>20</subscript></entry> + <entry>Cr<subscript>21</subscript></entry> + <entry>Cr<subscript>22</subscript></entry> + <entry>Cr<subscript>23</subscript></entry> + </row> + <row> + <entry>start2 + 12:</entry> + <entry>Cr<subscript>30</subscript></entry> + <entry>Cr<subscript>31</subscript></entry> + <entry>Cr<subscript>32</subscript></entry> |