diff mbox series

[1/2] media: v4l2-ctrls: add encoder maximum bitrate control

Message ID 20240118105934.137919-2-quic_sachinku@quicinc.com
State New
Headers
Series add MBR type rate control for encoder |

Commit Message

Sachin Kumar Garg Jan. 18, 2024, 10:59 a.m. UTC 
  Introduce V4L2_MPEG_VIDEO_BITRATE_MODE_MBR rate control to
limit the frame level maximum bit rate.
Encoder will choose appropriate quantization parameter and
do the smart bit allocation to set the frame maximum bitrate
level as per the Bitrate value configured.

Signed-off-by: Sachin Kumar Garg <quic_sachinku@quicinc.com>
---
 Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 2 ++
 drivers/media/v4l2-core/v4l2-ctrls-defs.c                 | 1 +
 include/uapi/linux/v4l2-controls.h                        | 1 +
 3 files changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 2a165ae063fb..05ef4a70e3f5 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -576,6 +576,8 @@  enum v4l2_mpeg_video_bitrate_mode -
       - Constant bitrate
     * - ``V4L2_MPEG_VIDEO_BITRATE_MODE_CQ``
       - Constant quality
+    * - ``V4L2_MPEG_VIDEO_BITRATE_MODE_MBR``
+      - Maximum bitrate
 
 
 
diff --git a/drivers/media/v4l2-core/v4l2-ctrls-defs.c b/drivers/media/v4l2-core/v4l2-ctrls-defs.c
index 8696eb1cdd61..e0597b61ffb9 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls-defs.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls-defs.c
@@ -154,6 +154,7 @@  const char * const *v4l2_ctrl_get_menu(u32 id)
 		"Variable Bitrate",
 		"Constant Bitrate",
 		"Constant Quality",
+		"Maximum Bitrate",
 		NULL
 	};
 	static const char * const mpeg_stream_type[] = {
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 99c3f5e99da7..7c74d6c417d1 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -393,6 +393,7 @@  enum v4l2_mpeg_video_bitrate_mode {
 	V4L2_MPEG_VIDEO_BITRATE_MODE_VBR = 0,
 	V4L2_MPEG_VIDEO_BITRATE_MODE_CBR = 1,
 	V4L2_MPEG_VIDEO_BITRATE_MODE_CQ  = 2,
+	V4L2_MPEG_VIDEO_BITRATE_MODE_MBR = 3,
 };
 #define V4L2_CID_MPEG_VIDEO_BITRATE		(V4L2_CID_CODEC_BASE+207)
 #define V4L2_CID_MPEG_VIDEO_BITRATE_PEAK	(V4L2_CID_CODEC_BASE+208)