Visible to Intel only — GUID: onz1660918584791
Ixiasoft
Visible to Intel only — GUID: onz1660918584791
Ixiasoft
34.5. Interlacer IP Software API
Register definition header file: intel_vvp_interlacer_regs.h
Include file: intel_vvp_interlacer.h
Name | Description |
---|---|
intel_vvp_interlacer_init | Initialize the Interlacer instance |
intel_vvp_core_* | Accessors defined in Video and Vision Processing IPs Software Programming Model . Writable when Lite mode is on. Readable when Lite mode is off and Debug features is on. |
intel_vvp_interlacer_get_lite_mode | Returns if Lite mode is on |
intel_vvp_interlacer_get_debug_enabled | Returns if Debug features is on |
intel_vvp_interlacer_is_running | Returns if the IP is currently processing video data |
intel_vvp_interlacer_get_commit_status | Returns if the IP has uncommitted writes |
intel_vvp_interlacer_get_status | Reads the status register |
intel_vvp_interlacer_set_enable | Enables or disables interlacing |
intel_vvp_interlacer_enable | Enables interlacing |
intel_vvp_interlacer_disable | Disables interlacing |
intel_vvp_interlacer_set_ctrl_override | Enables or disables using image information packets to select the lines to keep in full varians.t |
intel_vvp_interlacer_set_f1_first | Selects if the output interlaced stream starts with a F0 or F1 |
intel_vvp_interlacer_is_enabled | Returns the interlacer enabled or disabled status |
intel_vvp_interlacer_get_ctrl_override | Returns if image information packets select the lines to discard |
intel_vvp_interlacer_get_f1_first | Returns if the output interlaced stream starts with a F0 or F1 |
intel_vvp_interlacer_commit_writes | Commit all outstanding writes |
intel_vvp_interlacer_init
- Prototype
-
int intel_vvp_interlacer_init(intel_vvp_interlacer_instance *instance, intel_vvp_core_base base);
- Description
-
Initializes an Interlacer instance. The initialization stops early if the vendor ID or product ID read at the base address are not a match or if the register map version is not supported. Otherwise, the function proceeds to read and store the IP compile-time parameterization. The instance is not fully initialized and the application should not use it further if returning a non-zero error code.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
base - base address of the register map
- Returns
-
kIntelVvpCoreOk (0) in case of success, a negative error code in case of error
kIntelVvpCoreVidErr if the vendor id of the core is not the IntelFPGA vendor ID (0x6AF7).
kIntelVvpCorePidErr if the product_id does not match with the Interlacer product ID
kIntelVvpCoreInstanceErr if the instance is a null pointer
kIntelVvpInterlacerRegMapVersionErr if the register map is not supported
intel_vvp_interlacer_get_lite_mode
- Prototype
-
bool intel_vvp_interlacer_get_lite_mode(intel_vvp_interlacer_instance *instance);
- Description
-
Returns the value of the LITE_MODE register. The instance must be a valid intel_vvp_interlacer_instance fully initialized
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
true if the IP is parameterized in lite mode
intel_vvp_interlacer_get_debug_enabled
- Prototype
-
bool intel_vvp_interlacer_get_debug_enabled(intel_vvp_interlacer_instance *instance);
- Description
-
Returns the value of the DEBUG_ENABLED register. The instance must be a valid intel_vvp_interlacer_instance fully initialized.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
true if the IP is parameterized with debug features on
intel_vvp_interlacer_is_running
- Prototype
-
bool intel_vvp_interlacer_is_running(intel_vvp_interlacer_instance* instance);
- Description
-
Reads and returns the running bit of the STATUS register. The instance must be a valid intel_vvp_interlacer_instance fully initialized.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
True is the IP is currently receiving or storing an input field, false when between two input fields
intel_vvp_interlacer_get_commit_status
- Prototype
-
bool intel_vvp_interlacer_get_commit_status(intel_vvp_interlacer_instance* instance);
- Description
-
Reads and returns the commit pending bit of the STATUS register. The instance must be a valid intel_vvp_interlacer_instance fully initialized and configured in full mode.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
True is the IP is configured in full mode and if the agent interface contains uncommitted writes.
intel_vvp_interlacer_get_status
- Prototype
-
uint32_t intel_vvp_interlacer_get_status(intel_vvp_interlacer_instance* instance);
- Description
-
Reads the STATUS register. The instance must be a valid intel_vvp_interlacer_instance fully initialized.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
The content of the STATUS register
intel_vvp_interlacer_set_enable
- Prototype
-
int intel_vvp_interlacer_set_enable(intel_vvp_interlacer_instance *instance, bool enable);
- Description
-
Writes to the ENABLE register to enable or disable the interlacing. The instance must be a valid intel_vvp_interlacer_instance fully initialized.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
-
enable - true to enable interlacing, false for input passthrough
- Returns
-
kIntelVvpCoreOk for success, negative error code in case of failures
kIntelVvpCoreInstanceErr if the instance is invalid
intel_vvp_interlacer_enable
- Prototype
-
int intel_vvp_interlacer_enable(intel_vvp_interlacer_instance *instance);
- Description
-
Enables interlacing. The instance must be a valid intel_vvp_interlacer_instance fully initialized.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
kIntelVvpCoreOk for success, negative error code in case of failures
kIntelVvpCoreInstanceErr if the instance is invalid
intel_vvp_interlacer_disable
- Prototype
-
int intel_vvp_interlacer_disable(intel_vvp_interlacer_instance *instance);
- Description
-
Disables interlacing and enables input passthrough
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
kIntelVvpCoreOk for success, negative error code in case of failures
kIntelVvpCoreInstanceErr if the instance is invalid
intel_vvp_interlacer_set_ctrl_override
- Prototype
-
int intel_vvp_interlacer_set_ctrl_override(intel_vvp_interlacer_instance* instance, bool ctrl_override);
- Description
-
Writes to the CTRL_OVERRIDE register to enable/disable the reading and use of the interlace nibble on image info packet to select the field to keep during interlacing. The instance must be an initialized, valid, full variant, intel_vvp_interlacer_instance.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
-
ctrl_override - true to enable the use of interlace nibbles in image info packet, false otherwise
- Returns
-
kIntelVvpCoreOk for success, negative error code in case of failures
kIntelVvpCoreInstanceErr if the instance is invalid or lite variant
intel_vvp_interlacer_set_f1_first
- Prototype
-
int intel_vvp_interlacer_set_f1_first(intel_vvp_interlacer_instance *instance, bool f1_first)
- Description
-
Writes to the F1_FIRST register to select which interlaced field is produced first after a setup change
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
f1_first - true to output a F1 field first whenever the IP detects a change of input or configuration, false to start with a F0
- Returns
-
kIntelVvpCoreOk for success, negative error code in case of failures
kIntelVvpCoreInstanceErr if the instance is invalid
intel_vvp_interlacer_is_enabled
- Prototype
-
bool intel_vvp_interlacer_is_enabled(intel_vvp_interlacer_instance *instance)
- Description
-
Returns the current interlacer mode of operation. The instance must be a valid intel_vvp_interlacer_instance fully initialized with debug on
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
The current interlacer configuration if debug is on. True if the interlacer is active, false for progressive passthrough or if debug is off
intel_vvp_interlacer_get_ctrl_override
- Prototype
-
bool intel_vvp_interlacer_get_ctrl_override(intel_vvp_interlacer_instance *instance)
- Description
-
Returns the current interlacer ctrl_override setting. The instance must be a valid, full variant, intel_vvp_interlacer_instance fully initialized with debug on.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
True if the interlacer uses the input image info packet interlace nibble to determine which interlaced field is kept on a progressive frame, false otherwise or if debug is off
intel_vvp_interlacer_get_f1_first
- Prototype
-
bool intel_vvp_interlacer_get_f1_first(intel_vvp_interlacer_instance *instance)
- Description
-
Returns the current interlacer f1 first setting. The instance must be a valid intel_vvp_interlacer_instance fully initialized and with debug on.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
The current f1_first setting or false if debug is off
intel_vvp_interlacer_commit_writes
- Prototype
-
int intel_vvp_interlacer_commit_writes(intel_vvp_interlacer_instance* instance)
- Description
-
Commits all pending writes before processing the next field. The instance must be valid and parameterized in full mode.
- Arguments
-
instance - pointer to the intel_vvp_interlacer_instance software driver instance structure
- Returns
-
kIntelVvpCoreOk (0) for success, negative error code otherwise