Data Structures | |
struct | vbi_pfc_block |
One block of data returned by vbi_pfc_demux_cb(). More... | |
Typedefs | |
typedef struct _vbi_pfc_demux | vbi_pfc_demux |
PFC demultiplexer context. | |
typedef vbi_bool | vbi_pfc_demux_cb (vbi_pfc_demux *dx, void *user_data, const vbi_pfc_block *block) |
Functions | |
void | vbi_pfc_demux_reset (vbi_pfc_demux *dx) _vbi_attribute((_vbi_nonnull(1))) |
vbi_bool | vbi_pfc_demux_feed (vbi_pfc_demux *dx, const uint8_t buffer[42]) |
vbi_bool | vbi_pfc_demux_feed_frame (vbi_pfc_demux *dx, const vbi_sliced *sliced, unsigned int n_lines) |
void | vbi_pfc_demux_delete (vbi_pfc_demux *dx) |
vbi_pfc_demux * | vbi_pfc_demux_new (vbi_pgno pgno, unsigned int stream, vbi_pfc_demux_cb *callback, void *user_data) |
typedef struct _vbi_pfc_demux vbi_pfc_demux |
PFC demultiplexer context.
The contents of this structure are private.
Call vbi_pfc_demux_new() to allocate a PFC demultiplexer context.
typedef vbi_bool vbi_pfc_demux_cb(vbi_pfc_demux *dx, void *user_data, const vbi_pfc_block *block) |
dx | PFC demultiplexer context returned by vbi_pfx_demux_new() and given to vbi_pfc_demux_feed(). | |
user_data | User pointer given to vbi_pfc_demux_new(). | |
block | Structure describing the received data block. |
void vbi_pfc_demux_reset | ( | vbi_pfc_demux * | dx | ) |
dx | PFC demultiplexer context allocated with vbi_pfc_demux_new(). |
vbi_bool vbi_pfc_demux_feed | ( | vbi_pfc_demux * | dx, | |
const uint8_t | buffer[42] | |||
) |
dx | PFC demultiplexer context allocated with vbi_pfc_demux_new(). | |
buffer | Teletext packet (last 42 bytes, i. e. without clock run-in and framing code), as in struct vbi_sliced. |
vbi_bool vbi_pfc_demux_feed_frame | ( | vbi_pfc_demux * | dx, | |
const vbi_sliced * | sliced, | |||
unsigned int | n_lines | |||
) |
dx | PFC demultiplexer context allocated with vbi_pfc_demux_new(). | |
sliced | Sliced VBI data. | |
n_lines | Number of lines in the sliced array. |
VBI_SLICED_TELETEXT_B_625
.
void vbi_pfc_demux_delete | ( | vbi_pfc_demux * | dx | ) |
dx | PFC demultiplexer context allocated with vbi_pfc_demux_new(), can be NULL . |
vbi_pfc_demux* vbi_pfc_demux_new | ( | vbi_pgno | pgno, | |
unsigned int | stream, | |||
vbi_pfc_demux_cb * | callback, | |||
void * | user_data | |||
) |
pgno | Page to take PFC data from. | |
stream | PFC stream to be demultiplexed. | |
callback | Function to be called by vbi_pfc_demux_feed() when a new data block is available. | |
user_data | User pointer passed through to cb function. |
NULL
on failure (out of memory).