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[media] V4L: add a new videobuf2 buffer state VB2_BUF_STATE_PREPARED

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This patch prepares for a better separation of the buffer preparation
stage.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Guennadi Liakhovetski
2011-08-31 06:51:10 -03:00
committed by Mauro Carvalho Chehab
parent 2b3d0457b8
commit ebc087d090
2 changed files with 41 additions and 22 deletions
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2
include/media/videobuf2-core.h
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@@ -105,6 +105,7 @@ enum vb2_fileio_flags {
/**
* enum vb2_buffer_state - current video buffer state
* @VB2_BUF_STATE_DEQUEUED: buffer under userspace control
* @VB2_BUF_STATE_PREPARED: buffer prepared in videobuf and by the driver
* @VB2_BUF_STATE_QUEUED: buffer queued in videobuf, but not in driver
* @VB2_BUF_STATE_ACTIVE: buffer queued in driver and possibly used
* in a hardware operation
@@ -116,6 +117,7 @@ enum vb2_fileio_flags {
*/
enum vb2_buffer_state {
VB2_BUF_STATE_DEQUEUED,
VB2_BUF_STATE_PREPARED,
VB2_BUF_STATE_QUEUED,
VB2_BUF_STATE_ACTIVE,
VB2_BUF_STATE_DONE,