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media: v4l2-mem2mem: add stateless_(try_)decoder_cmd ioctl helpers

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These helpers are used by stateless codecs when they support multiple
slices per frame and hold capture buffer flag is set. It's expected that
all such codecs will use this code.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Co-developed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Jernej Skrabec
2019-10-11 06:32:43 -03:00
committed by Mauro Carvalho Chehab
parent bac06ec36e
commit bef41d93aa
2 changed files with 57 additions and 0 deletions
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4
include/media/v4l2-mem2mem.h
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@@ -701,6 +701,10 @@ int v4l2_m2m_ioctl_try_encoder_cmd(struct file *file, void *fh,
struct v4l2_encoder_cmd *ec);
int v4l2_m2m_ioctl_try_decoder_cmd(struct file *file, void *fh,
struct v4l2_decoder_cmd *dc);
int v4l2_m2m_ioctl_stateless_try_decoder_cmd(struct file *file, void *fh,
struct v4l2_decoder_cmd *dc);
int v4l2_m2m_ioctl_stateless_decoder_cmd(struct file *file, void *priv,
struct v4l2_decoder_cmd *dc);
int v4l2_m2m_fop_mmap(struct file *file, struct vm_area_struct *vma);
__poll_t v4l2_m2m_fop_poll(struct file *file, poll_table *wait);