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Groups > linux.kernel > #1551563
| From | Ayaka <ayaka@soulik.info> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 1/2] drm_fourcc: Add new P010, P016 video format |
| Date | 2017-01-05 03:10 +0100 |
| Message-ID | <sW5F7-4IF-7@gated-at.bofh.it> (permalink) |
| References | <sVWBP-76c-7@gated-at.bofh.it> <sVWBQ-76c-29@gated-at.bofh.it> <sVXey-7zE-23@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
從我的 iPad 傳送
> Daniel Stone <daniel@fooishbar.org> 於 2017年1月5日 上午1:02 寫道：
>
> Hi Randy,
>
>> On 4 January 2017 at 16:29, Randy Li <ayaka@soulik.info> wrote:
>> index 90d2cc8..23c8e99 100644
>> --- a/drivers/gpu/drm/drm_fourcc.c
>> +++ b/drivers/gpu/drm/drm_fourcc.c
>> @@ -165,6 +165,9 @@ const struct drm_format_info *__drm_format_info(u32 format)
>> { .format = DRM_FORMAT_UYVY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1 },
>> { .format = DRM_FORMAT_VYUY, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1 },
>> { .format = DRM_FORMAT_AYUV, .depth = 0, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
>> + /* FIXME a pixel in Y for P010 is 10 bits */
>> + { .format = DRM_FORMAT_P010, .depth = 0, .num_planes = 2, .cpp = { 1, 2, 0 }, .hsub = 2, .vsub = 2 },
>
> It seems like P010 stores each Y component in a 16-bit value, with the
> bottom 6 bits ignored. So I think cpp here should be 2.
No, the rest bits are used to store the next pixel. The P010 is just a 10 bits color depth pixel format.
>
> Cheers,
> Daniel
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[PATCH v2 0/2] Add pixel formats for 10/16 bits YUV video Randy Li <ayaka@soulik.info> - 2017-01-04 17:30 +0100
[PATCH v2 1/2] drm_fourcc: Add new P010, P016 video format Randy Li <ayaka@soulik.info> - 2017-01-04 17:30 +0100
Re: [PATCH v2 1/2] drm_fourcc: Add new P010, P016 video format Daniel Stone <daniel@fooishbar.org> - 2017-01-04 18:10 +0100
Re: [PATCH v2 1/2] drm_fourcc: Add new P010, P016 video format Ayaka <ayaka@soulik.info> - 2017-01-05 03:10 +0100
[PATCH v2 2/2] [media] v4l: Add 10/16-bits per channel YUV pixel formats Randy Li <ayaka@soulik.info> - 2017-01-04 17:40 +0100
Re: [PATCH v2 2/2] [media] v4l: Add 10/16-bits per channel YUV pixel formats Sakari Ailus <sakari.ailus@iki.fi> - 2017-01-05 11:40 +0100
Re: [PATCH v2 2/2] [media] v4l: Add 10/16-bits per channel YUV pixel formats ayaka <ayaka@soulik.info> - 2017-01-05 16:30 +0100
Re: [PATCH v2 2/2] [media] v4l: Add 10/16-bits per channel YUV pixel formats Sakari Ailus <sakari.ailus@iki.fi> - 2017-01-05 19:50 +0100
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