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media: videodev2.h: add V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM

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Add an enum_fmt format flag to specifically tag coded formats where
full bytestream parsing is supported by the device.

Some stateful decoders are capable of fully parsing a bytestream,
but others require that userspace pre-parses the bytestream into
frames or fields (see the corresponding pixelformat descriptions
for details).

If this flag is set, then this pre-parsing step is not required
(but still possible, of course).

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil
2019-08-15 11:44:45 -03:00
committed by Mauro Carvalho Chehab
parent 760327930e
commit 2b770bee78
3 changed files with 12 additions and 2 deletions
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5
include/uapi/linux/videodev2.h
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@@ -774,8 +774,9 @@ struct v4l2_fmtdesc {
__u32 reserved[4];
};
#define V4L2_FMT_FLAG_COMPRESSED 0x0001
#define V4L2_FMT_FLAG_EMULATED 0x0002
#define V4L2_FMT_FLAG_COMPRESSED 0x0001
#define V4L2_FMT_FLAG_EMULATED 0x0002
#define V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM 0x0004
/* Frame Size and frame rate enumeration */
/*