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Subject: [media] v4l: V4L2_MBUS_FRAME_DESC_FL_BLOB is about 1D DMA Author: Sakari Ailus <[email protected]> Date: Wed Dec 18 08:40:28 2013 -0300 V4L2_MBUS_FRAME_DESC_FL_BLOB intends to say the receiver must use 1D DMA to receive the image, as the format does not have line offsets. This typically includes all compressed formats. Signed-off-by: Sakari Ailus <[email protected]> Cc: Sylwester Nawrocki <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> include/media/v4l2-subdev.h | 9 ++++++--- 1 files changed, 6 insertions(+), 3 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=174d6a39b07f51212c23a8e30a0440598d18392c diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index ee0ae76..7653194 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -234,15 +234,18 @@ struct v4l2_subdev_audio_ops { /* Indicates the @length field specifies maximum data length. */ #define V4L2_MBUS_FRAME_DESC_FL_LEN_MAX (1U << 0) -/* Indicates user defined data format, i.e. non standard frame format. */ +/* + * Indicates that the format does not have line offsets, i.e. the + * receiver should use 1D DMA. + */ #define V4L2_MBUS_FRAME_DESC_FL_BLOB (1U << 1) /** * struct v4l2_mbus_frame_desc_entry - media bus frame description structure * @flags: V4L2_MBUS_FRAME_DESC_FL_* flags * @pixelcode: media bus pixel code, valid if FRAME_DESC_FL_BLOB is not set - * @length: number of octets per frame, valid for compressed or unspecified - * formats + * @length: number of octets per frame, valid if V4L2_MBUS_FRAME_DESC_FL_BLOB + * is set */ struct v4l2_mbus_frame_desc_entry { u16 flags; _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
