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From: Stanimir Varbanov <stanimir.varbanov@linaro.org>
To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-msm@vger.kernel.org
Cc: Ezequiel Garcia <ezequiel@collabora.com>,
	Nicolas Dufresne <nicolas.dufresne@collabora.com>,
	Maheshwar Ajja <majja@codeaurora.org>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Stanimir Varbanov <stanimir.varbanov@linaro.org>
Subject: [PATCH v2 3/4] media: v4l2-ctrls: Add control for AUD generation
Date: Sun,  6 Dec 2020 12:27:16 +0200	[thread overview]
Message-ID: <20201206102717.19000-4-stanimir.varbanov@linaro.org> (raw)
In-Reply-To: <20201206102717.19000-1-stanimir.varbanov@linaro.org>

Add a control to enable inserting of AUD NALU into encoded
bitstream.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
---
 Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 5 +++++
 drivers/media/v4l2-core/v4l2-ctrls.c                      | 2 ++
 include/uapi/linux/v4l2-controls.h                        | 1 +
 3 files changed, 8 insertions(+)

diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index d65d7c1381b7..32eb233ee089 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -679,6 +679,11 @@ enum v4l2_mpeg_video_frame_skip_mode -
     otherwise the decoder expects a single frame in per buffer.
     Applicable to the decoder, all codecs.
 
+``V4L2_CID_MPEG_VIDEO_AU_DELIMITER (boolean)``
+    If enabled then, AUD (Access Unit Delimiter) NALUs will be generated.
+    That could be useful to find the start of a frame without having to
+    fully parse each NALU. Applicable to the H264 and HEVC encoders.
+
 ``V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE (boolean)``
     Enable writing sample aspect ratio in the Video Usability
     Information. Applicable to the H264 encoder.
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index ac44848d2d6e..ea2de8b51e29 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -875,6 +875,7 @@ const char *v4l2_ctrl_get_name(u32 id)
 	case V4L2_CID_MPEG_VIDEO_HEADER_MODE:			return "Sequence Header Mode";
 	case V4L2_CID_MPEG_VIDEO_MAX_REF_PIC:			return "Max Number of Reference Pics";
 	case V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE:		return "Frame Skip Mode";
+	case V4L2_CID_MPEG_VIDEO_AU_DELIMITER:			return "Generate Access Unit Delimiters";
 	case V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP:		return "H263 I-Frame QP Value";
 	case V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP:		return "H263 P-Frame QP Value";
 	case V4L2_CID_MPEG_VIDEO_H263_B_FRAME_QP:		return "H263 B-Frame QP Value";
@@ -1232,6 +1233,7 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
 	case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE:
 	case V4L2_CID_MPEG_VIDEO_MPEG4_QPEL:
 	case V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER:
+	case V4L2_CID_MPEG_VIDEO_AU_DELIMITER:
 	case V4L2_CID_WIDE_DYNAMIC_RANGE:
 	case V4L2_CID_IMAGE_STABILIZATION:
 	case V4L2_CID_RDS_RECEPTION:
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 54b9072ac49d..1fb1a3ba3985 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -423,6 +423,7 @@ enum v4l2_mpeg_video_multi_slice_mode {
 #define V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE		(V4L2_CID_CODEC_BASE+228)
 #define V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME		(V4L2_CID_CODEC_BASE+229)
 #define V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD	(V4L2_CID_CODEC_BASE+230)
+#define V4L2_CID_MPEG_VIDEO_AU_DELIMITER		(V4L2_CID_CODEC_BASE+231)
 
 /* CIDs for the MPEG-2 Part 2 (H.262) codec */
 #define V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL			(V4L2_CID_CODEC_BASE+270)
-- 
2.17.1


  parent reply	other threads:[~2020-12-06 10:29 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-06 10:27 [PATCH v2 0/4] Add random IR and AUD encoder controls Stanimir Varbanov
2020-12-06 10:27 ` [PATCH v2 1/4] media: v4l2-ctrls: Add intra-refresh period control Stanimir Varbanov
2021-01-12 10:05   ` Hans Verkuil
2021-01-18  9:20     ` Stanimir Varbanov
2020-12-06 10:27 ` [PATCH v2 2/4] venus: venc: Add support for intra-refresh period Stanimir Varbanov
2020-12-06 10:27 ` Stanimir Varbanov [this message]
2021-01-12 10:06   ` [PATCH v2 3/4] media: v4l2-ctrls: Add control for AUD generation Hans Verkuil
2020-12-06 10:27 ` [PATCH v2 4/4] venus: venc: Add support for AUD NALU control Stanimir Varbanov

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