nit.h File Reference
Application interface for the NIT decoder and the NIT generator.
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Go to the source code of this file.
Data Structures |
struct | dvbpsi_nit_ts_s |
| NIT TS structure. More...
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struct | dvbpsi_nit_s |
| NIT structure. More...
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Typedefs |
typedef struct dvbpsi_nit_ts_s | dvbpsi_nit_ts_t |
| dvbpsi_nit_ts_t type definition.
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typedef struct dvbpsi_nit_s | dvbpsi_nit_t |
| dvbpsi_nit_t type definition.
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typedef void(* | dvbpsi_nit_callback )(void *p_cb_data, dvbpsi_nit_t *p_new_nit) |
| Callback type definition.
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Functions |
bool | dvbpsi_nit_attach (dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension, dvbpsi_nit_callback pf_callback, void *p_cb_data) |
| Creation and initialization of a NIT decoder. It is attached to p_dvbpsi.
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void | dvbpsi_nit_detach (dvbpsi_t *p_dvbpsi, uint8_t i_table_id, uint16_t i_extension) |
| Destroy a NIT decoder.
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void | dvbpsi_nit_init (dvbpsi_nit_t *p_nit, uint8_t i_table_id, uint16_t i_extension, uint16_t i_network_id, uint8_t i_version, bool b_current_next) |
| Initialize a user-allocated dvbpsi_nit_t structure.
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dvbpsi_nit_t * | dvbpsi_nit_new (uint8_t i_table_id, uint16_t i_extension, uint16_t i_network_id, uint8_t i_version, bool b_current_next) |
| Allocate and initialize a new dvbpsi_nit_t structure.
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void | dvbpsi_nit_empty (dvbpsi_nit_t *p_nit) |
| Clean a dvbpsi_nit_t structure.
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void | dvbpsi_nit_delete (dvbpsi_nit_t *p_nit) |
| Clean and free a dvbpsi_nit_t structure.
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dvbpsi_descriptor_t * | dvbpsi_nit_descriptor_add (dvbpsi_nit_t *p_nit, uint8_t i_tag, uint8_t i_length, uint8_t *p_data) |
| Add a descriptor in the NIT.
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dvbpsi_nit_ts_t * | dvbpsi_nit_ts_add (dvbpsi_nit_t *p_nit, uint16_t i_ts_id, uint16_t i_orig_network_id) |
| Add an TS in the NIT.
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dvbpsi_descriptor_t * | dvbpsi_nit_ts_descriptor_add (dvbpsi_nit_ts_t *p_ts, uint8_t i_tag, uint8_t i_length, uint8_t *p_data) |
| Add a descriptor in the NIT TS.
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dvbpsi_psi_section_t * | dvbpsi_nit_sections_generate (dvbpsi_t *p_dvbpsi, dvbpsi_nit_t *p_nit, uint8_t i_table_id) |
| NIT generator.
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Detailed Description
Application interface for the NIT decoder and the NIT generator.
>
- Author:
- Johann Hanne Application interface for the NIT decoder and the NIT generator. New decoded NIT tables are sent by callback to the application.
Function Documentation
bool dvbpsi_nit_attach |
( |
dvbpsi_t * |
p_dvbpsi, |
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uint8_t |
i_table_id, |
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uint16_t |
i_extension, |
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dvbpsi_nit_callback |
pf_callback, |
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void * |
p_cb_data | |
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) |
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Creation and initialization of a NIT decoder. It is attached to p_dvbpsi.
- Parameters:
-
| p_dvbpsi | dvbpsi handle to Subtable demultiplexor to which the decoder is attached. |
| i_table_id | Table ID, 0x4E, 0x4F, or 0x50-0x6F. |
| i_extension | Table ID extension, here service ID. |
| pf_callback | function to call back on new NIT. |
| p_cb_data | private data given in argument to the callback. |
- Returns:
- true on success, false on failure
Clean and free a dvbpsi_nit_t structure.
- Parameters:
-
| p_nit | pointer to the NIT structure |
- Returns:
- nothing.
Add a descriptor in the NIT.
- Parameters:
-
| p_nit | pointer to the NIT structure |
| i_tag | descriptor's tag |
| i_length | descriptor's length |
| p_data | descriptor's data |
- Returns:
- a pointer to the added descriptor.
void dvbpsi_nit_detach |
( |
dvbpsi_t * |
p_dvbpsi, |
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uint8_t |
i_table_id, |
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uint16_t |
i_extension | |
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) |
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Destroy a NIT decoder.
- Parameters:
-
| p_dvbpsi | dvbpsi handle to Subtable demultiplexor to which the decoder is attached. |
| i_table_id | Table ID, 0x4E, 0x4F, or 0x50-0x6F. |
| i_extension | Table ID extension, here service ID. |
- Returns:
- nothing.
Clean a dvbpsi_nit_t structure.
- Parameters:
-
| p_nit | pointer to the NIT structure |
- Returns:
- nothing.
void dvbpsi_nit_init |
( |
dvbpsi_nit_t * |
p_nit, |
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uint8_t |
i_table_id, |
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uint16_t |
i_extension, |
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uint16_t |
i_network_id, |
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uint8_t |
i_version, |
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bool |
b_current_next | |
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) |
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Initialize a user-allocated dvbpsi_nit_t structure.
- Parameters:
-
| i_table_id | Table ID, 0x4E, 0x4F, or 0x50-0x6F. |
| i_extension | Table ID extension, here service ID. |
| p_nit | pointer to the NIT structure |
| i_network_id | network id |
| i_version | NIT version |
| b_current_next | current next indicator |
- Returns:
- nothing.
dvbpsi_nit_t * dvbpsi_nit_new |
( |
uint8_t |
i_table_id, |
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uint16_t |
i_extension, |
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uint16_t |
i_network_id, |
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uint8_t |
i_version, |
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bool |
b_current_next | |
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) |
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Allocate and initialize a new dvbpsi_nit_t structure.
- Parameters:
-
| i_table_id | Table ID, 0x4E, 0x4F, or 0x50-0x6F. |
| i_extension | Table ID extension, here service ID. |
| i_network_id | network id |
| i_version | NIT version |
| b_current_next | current next indicator |
- Returns:
- p_nit pointer to the NIT structure
NIT generator.
- Parameters:
-
| p_dvbpsi | handle to dvbpsi with attached decoder |
| p_nit | NIT structure |
| i_table_id | table id, 0x40 = actual network / 0x41 = other network |
- Returns:
- a pointer to the list of generated PSI sections.
Generate NIT sections based on the dvbpsi_nit_t structure.
Add an TS in the NIT.
- Parameters:
-
| p_nit | pointer to the NIT structure |
| i_ts_id | type of TS |
| i_orig_network_id | PID of the TS |
- Returns:
- a pointer to the added TS.
Add a descriptor in the NIT TS.
- Parameters:
-
| p_ts | pointer to the TS structure |
| i_tag | descriptor's tag |
| i_length | descriptor's length |
| p_data | descriptor's data |
- Returns:
- a pointer to the added descriptor.