Set the logging level for a category at run time. Without this, the level * will be that set by vcos_log_register from a platform-specific source.

Copy a raw frame from 1 buffer to another, taking care of stride / height differences between the input and output buffers.

Add a clock port event to the queue and trigger the action thread */

Change the scale for all clock ports */

Destroy a previously created component */

Increment filter index modulo the length */

Add a new sample (and drop the oldest when full) */

Returns an id of the camera. We assume the camera id is the one of the raspberry the id is obtained using raspberry serial number obtained in /proc/cp

Returns the value of a param. If not present, returns the defvalue

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Propagate a port enable */

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Acquire a buffer header */

Get the size in bytes of a fully initialised MMAL_BUFFER_HEADER_T */

Destroy a clock instance */

Get the clock's discontinuity threshold values */

Set the clock's discontinuity threshold values */

Return the current local media-time */

Update the local media-time with the given reference */

Flush all pending requests */

Flush all pending requests */

Get the clock's request threshold values */

Set the clock's request threshold values */

Get the clock's scale */

Destroy a timer */

Get the clock's media-time update threshold values */

Set the clock's media-time update threshold values */

Acquire a reference to a component */

Create an instance of a component */

Release a reference to a component */

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Create a pool of MMAL_BUFFER_HEADER_T */

Free a clock port */

Set the clock port's reference state */

Register a callback request */

Flush all pending clock requests */

Get the clock port's scale */

Set the clock port's scale */

Initialise all callbacks and setup internal resources */

Connect an output port to an input port. */

Disable processing on a port * * Disabling a port will stop all processing on this port and return all (non-processed) * buffer headers to the clie

Helper function to set the value of a 32 bits unsigned integer parameter */

Allocate a payload buffer */

Free a payload buffer */

Release a reference on a port */

Update the port stats, called per buffer. * */

Get the number of MMAL_BUFFER_HEADER_T currently in a queue. * * @param queue Pointer to a queue * * @return length (in elements) of the queue.

Helper function to set a MMAL_PARAMETER_URI_T parameter on a port */

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Flush a port using MMAL_WORKER_PORT_ACTION - when the port is zero-copy or no data has been sent */

Get port buffer requirements. */