diff mbox series

[RFC/WIP,v2,1/6] media: Add HEIF HEVC compressed pixel format

Message ID 20220303141010.573408-2-stanimir.varbanov@linaro.org (mailing list archive)
State RFC
Headers
Series HEIC image encoder |

Commit Message

Stanimir Varbanov March 3, 2022, 2:10 p.m. UTC 
  Add HEIF (High Efficiency Image File Format ) HEVC pixel format. This an
image container which use HEVC as a codec.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
---
 .../userspace-api/media/v4l/pixfmt-compressed.rst    | 12 ++++++++++++
 drivers/media/v4l2-core/v4l2-ioctl.c                 |  1 +
 include/uapi/linux/videodev2.h                       |  1 +
 3 files changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
index 967fc803ef94..df1ada1d45c7 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
@@ -197,6 +197,18 @@  Compressed Formats
 	If :ref:`VIDIOC_ENUM_FMT` reports ``V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM``
 	then the decoder has no	requirements since it can parse all the
 	information from the raw bytestream.
+    * .. _V4L2-PIX-FMT-HEIF-HEVC:
+
+      - ``V4L2_PIX_FMT_HEIF_HEVC``
+      - 'HEIC'
+      - High Efficiency Image Container is an image container file format which
+        uses HEVC encoding and it is a variant of HEIF (High Efficiency Image File)
+        format.
+	The decoder expects one Access Unit per buffer.
+	The encoder generates one Access Unit per buffer.
+	If :ref:`VIDIOC_ENUM_FMT` reports ``V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM``
+	then the decoder has no	requirements since it can parse all the
+	information from the raw bytestream.
     * .. _V4L2-PIX-FMT-HEVC-SLICE:
 
       - ``V4L2_PIX_FMT_HEVC_SLICE``
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 642cb90f457c..f00e463e456f 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1439,6 +1439,7 @@  static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
 		case V4L2_PIX_FMT_SE401:	descr = "GSPCA SE401"; break;
 		case V4L2_PIX_FMT_S5C_UYVY_JPG:	descr = "S5C73MX interleaved UYVY/JPEG"; break;
 		case V4L2_PIX_FMT_MT21C:	descr = "Mediatek Compressed Format"; break;
+		case V4L2_PIX_FMT_HEIF_HEVC:	descr = "HEIF HEVC Image Format"; break;
 		default:
 			if (fmt->description[0])
 				return;
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index df8b9c486ba1..ed4c916d3075 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -708,6 +708,7 @@  struct v4l2_pix_format {
 #define V4L2_PIX_FMT_FWHT     v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */
 #define V4L2_PIX_FMT_FWHT_STATELESS     v4l2_fourcc('S', 'F', 'W', 'H') /* Stateless FWHT (vicodec) */
 #define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */
+#define V4L2_PIX_FMT_HEIF_HEVC	v4l2_fourcc('H', 'E', 'I', 'C') /* HEIF HEVC image format */
 
 /*  Vendor-specific formats   */
 #define V4L2_PIX_FMT_CPIA1    v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */