From: Hans Verkuil <hverkuil@xs4all.nl>
To: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
linux-media@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Subject: Re: [PATCH 1/3] v4l: Merge the YUV and YVU 4:2:0 tri-planar non-contiguous formats docs
Date: Fri, 22 Jan 2016 12:22:10 +0000 [thread overview]
Message-ID: <56A21EF2.7010208@xs4all.nl> (raw)
In-Reply-To: <1452485264-11328-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com>
On 01/11/2016 05:07 AM, Laurent Pinchart wrote:
> The two formats are very similar, having two separate pages to describe
> them is overkill.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Thanks!
Hans
> ---
> Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml | 26 ++--
> Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml | 154 ---------------------
> Documentation/DocBook/media/v4l/pixfmt.xml | 1 -
> 3 files changed, 17 insertions(+), 164 deletions(-)
> delete mode 100644 Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml
>
> 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-yvu420m.xml
> deleted file mode 100644
> index 2330667907c7..000000000000
> --- a/Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml
> +++ /dev/null
> @@ -1,154 +0,0 @@
> - <refentry id="V4L2-PIX-FMT-YVU420M">
> - <refmeta>
> - <refentrytitle>V4L2_PIX_FMT_YVU420M ('YM21')</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>
> - </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 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>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
> -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
> -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
> -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>Cr<subscript>00</subscript></entry>
> - <entry>Cr<subscript>01</subscript></entry>
> - </row>
> - <row>
> - <entry>start1 + 2:</entry>
> - <entry>Cr<subscript>10</subscript></entry>
> - <entry>Cr<subscript>11</subscript></entry>
> - </row>
> - <row><entry></entry></row>
> - <row>
> - <entry>start2 + 0:</entry>
> - <entry>Cb<subscript>00</subscript></entry>
> - <entry>Cb<subscript>01</subscript></entry>
> - </row>
> - <row>
> - <entry>start2 + 2:</entry>
> - <entry>Cb<subscript>10</subscript></entry>
> - <entry>Cb<subscript>11</subscript></entry>
> - </row>
> - </tbody>
> - </tgroup>
> - </informaltable>
> - </para>
> - </formalpara>
> -
> - <formalpara>
> - <title>Color Sample Location.</title>
> - <para>
> - <informaltable frame="none">
> - <tgroup cols="7" align="center">
> - <tbody valign="top">
> - <row>
> - <entry></entry>
> - <entry>0</entry><entry></entry><entry>1</entry><entry></entry>
> - <entry>2</entry><entry></entry><entry>3</entry>
> - </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>
> - </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>
> - </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>
> - </row>
> - <row>
> - <entry>3</entry>
> - <entry>Y</entry><entry></entry><entry>Y</entry><entry></entry>
> - <entry>Y</entry><entry></entry><entry>Y</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 d871245d2973..9e77ff353feb 100644
> --- a/Documentation/DocBook/media/v4l/pixfmt.xml
> +++ b/Documentation/DocBook/media/v4l/pixfmt.xml
> @@ -1628,7 +1628,6 @@ information.</para>
> &sub-y41p;
> &sub-yuv420;
> &sub-yuv420m;
> - &sub-yvu420m;
> &sub-yuv410;
> &sub-yuv422p;
> &sub-yuv411p;
>
WARNING: multiple messages have this Message-ID (diff)
From: Hans Verkuil <hverkuil@xs4all.nl>
To: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
linux-media@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Subject: Re: [PATCH 1/3] v4l: Merge the YUV and YVU 4:2:0 tri-planar non-contiguous formats docs
Date: Fri, 22 Jan 2016 13:22:10 +0100 [thread overview]
Message-ID: <56A21EF2.7010208@xs4all.nl> (raw)
In-Reply-To: <1452485264-11328-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com>
On 01/11/2016 05:07 AM, Laurent Pinchart wrote:
> The two formats are very similar, having two separate pages to describe
> them is overkill.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Thanks!
Hans
> ---
> Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml | 26 ++--
> Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml | 154 ---------------------
> Documentation/DocBook/media/v4l/pixfmt.xml | 1 -
> 3 files changed, 17 insertions(+), 164 deletions(-)
> delete mode 100644 Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml
>
> 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-yvu420m.xml
> deleted file mode 100644
> index 2330667907c7..000000000000
> --- a/Documentation/DocBook/media/v4l/pixfmt-yvu420m.xml
> +++ /dev/null
> @@ -1,154 +0,0 @@
> - <refentry id="V4L2-PIX-FMT-YVU420M">
> - <refmeta>
> - <refentrytitle>V4L2_PIX_FMT_YVU420M ('YM21')</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>
> - </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 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>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
> -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
> -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
> -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>Cr<subscript>00</subscript></entry>
> - <entry>Cr<subscript>01</subscript></entry>
> - </row>
> - <row>
> - <entry>start1 + 2:</entry>
> - <entry>Cr<subscript>10</subscript></entry>
> - <entry>Cr<subscript>11</subscript></entry>
> - </row>
> - <row><entry></entry></row>
> - <row>
> - <entry>start2 + 0:</entry>
> - <entry>Cb<subscript>00</subscript></entry>
> - <entry>Cb<subscript>01</subscript></entry>
> - </row>
> - <row>
> - <entry>start2 + 2:</entry>
> - <entry>Cb<subscript>10</subscript></entry>
> - <entry>Cb<subscript>11</subscript></entry>
> - </row>
> - </tbody>
> - </tgroup>
> - </informaltable>
> - </para>
> - </formalpara>
> -
> - <formalpara>
> - <title>Color Sample Location.</title>
> - <para>
> - <informaltable frame="none">
> - <tgroup cols="7" align="center">
> - <tbody valign="top">
> - <row>
> - <entry></entry>
> - <entry>0</entry><entry></entry><entry>1</entry><entry></entry>
> - <entry>2</entry><entry></entry><entry>3</entry>
> - </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>
> - </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>
> - </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>
> - </row>
> - <row>
> - <entry>3</entry>
> - <entry>Y</entry><entry></entry><entry>Y</entry><entry></entry>
> - <entry>Y</entry><entry></entry><entry>Y</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 d871245d2973..9e77ff353feb 100644
> --- a/Documentation/DocBook/media/v4l/pixfmt.xml
> +++ b/Documentation/DocBook/media/v4l/pixfmt.xml
> @@ -1628,7 +1628,6 @@ information.</para>
> &sub-y41p;
> &sub-yuv420;
> &sub-yuv420m;
> - &sub-yvu420m;
> &sub-yuv410;
> &sub-yuv422p;
> &sub-yuv411p;
>
next prev parent reply other threads:[~2016-01-22 12:22 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-11 4:07 [PATCH 0/3] VSP1: Add support for tri-planar memory formats Laurent Pinchart
2016-01-11 4:07 ` Laurent Pinchart
2016-01-11 4:07 ` [PATCH 1/3] v4l: Merge the YUV and YVU 4:2:0 tri-planar non-contiguous formats docs Laurent Pinchart
2016-01-11 4:07 ` Laurent Pinchart
2016-01-22 12:22 ` Hans Verkuil [this message]
2016-01-22 12:22 ` Hans Verkuil
2016-01-11 4:07 ` [PATCH 2/3] v4l: Add YUV 4:2:2 and YUV 4:4:4 tri-planar non-contiguous formats Laurent Pinchart
2016-01-11 4:07 ` Laurent Pinchart
2016-01-21 22:22 ` Laurent Pinchart
2016-01-21 22:22 ` Laurent Pinchart
2016-01-22 12:22 ` Hans Verkuil
2016-01-22 12:22 ` Hans Verkuil
2016-01-11 4:07 ` [PATCH 3/3] v4l: vsp1: Add tri-planar memory formats support Laurent Pinchart
2016-01-11 4:07 ` Laurent Pinchart
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