| From e39df3c673f8e8bfa359fca6712832cdc2a2dc31 Mon Sep 17 00:00:00 2001 |
| From: Shunqian Zheng <zhengsq@rock-chips.com> |
| Date: Sat, 24 Feb 2018 11:10:36 +0800 |
| Subject: [PATCH] BACKPORT: FROMLIST: media: Add controls for jpeg quantization tables |
| |
| Add V4L2_CID_JPEG_LUMA/CHROMA_QUANTIZATION controls to allow userspace |
| configure the JPEG quantization tables. |
| |
| Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com> |
| Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> |
| |
| (am from https://patchwork.linuxtv.org/patch/51341/) |
| Skip /Documentation/media/uapi/v4l/extended-controls.rst |
| |
| BUG=none |
| TEST=none |
| |
| Signed-off-by: Moja Hsu <mojahsu@chromium.org> |
| Change-Id: I32596278311e80bc5f7f15b69913707d2c49c98c |
| --- |
| |
| diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h |
| index 719ff13..5fe245b 100644 |
| --- a/include/uapi/linux/v4l2-controls.h |
| +++ b/include/uapi/linux/v4l2-controls.h |
| @@ -882,6 +882,9 @@ |
| #define V4L2_JPEG_ACTIVE_MARKER_DQT (1 << 17) |
| #define V4L2_JPEG_ACTIVE_MARKER_DHT (1 << 18) |
| |
| +#define V4L2_CID_JPEG_LUMA_QUANTIZATION (V4L2_CID_JPEG_CLASS_BASE + 5) |
| +#define V4L2_CID_JPEG_CHROMA_QUANTIZATION (V4L2_CID_JPEG_CLASS_BASE + 6) |
| + |
| |
| /* Image source controls */ |
| #define V4L2_CID_IMAGE_SOURCE_CLASS_BASE (V4L2_CTRL_CLASS_IMAGE_SOURCE | 0x900) |
