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libcamera: buffer: Add buffer completion status

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Add a new field to the Buffer class to report its completion status,
with a new cancel() method to mark the buffer as cancelled.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
This commit is contained in:
Laurent Pinchart 2019-02-28 17:45:58 +02:00
parent b581b9576a
commit fca7602c3c
3 changed files with 47 additions and 0 deletions
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10
include/libcamera/buffer.h
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@ -40,12 +40,19 @@ private:
class Buffer final
{
public:
enum Status {
BufferSuccess,
BufferError,
BufferCancelled,
};
Buffer();
unsigned int index() const { return index_; }
unsigned int bytesused() const { return bytesused_; }
uint64_t timestamp() const { return timestamp_; }
unsigned int sequence() const { return sequence_; }
Status status() const { return status_; }
std::vector<Plane> &planes() { return planes_; }
Signal<Buffer *> completed;
@ -54,10 +61,13 @@ private:
friend class BufferPool;
friend class V4L2Device;
void cancel();
unsigned int index_;
unsigned int bytesused_;
uint64_t timestamp_;
unsigned int sequence_;
Status status_;
std::vector<Plane> planes_;
};