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#include "zmodel.h"
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TTX_NONE=0, /* No messages */
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TTX_PAGE_RECEIVED, /* The monitored page has been received */
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TTX_NETWORK_CHANGE, /* New network info feeded into the decoder */
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TTX_PROG_INFO_CHANGE, /* New program info feeded into the decoder */
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TTX_TRIGGER, /* Trigger event, ttx_message_data.link filled */
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TTX_CHANNEL_SWITCHED, /* zvbi_channel_switched was called, the cache
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TTX_BROKEN_PIPE /* No longer connected to the TTX decoder */
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vbi_link link; /* A trigger link */
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extern vbi_pgno zvbi_page; /* page, subpage for subtitles */
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extern vbi_subno zvbi_subpage;
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* Register a client as TTX receiver, and returns the id that the
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* client should use to identify itself.
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int register_ttx_client(void);
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* Gets the next message in the queue, or TTX_NONE if nothing
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* Provide a valid pointer in data, it can be filled in.
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enum ttx_message peek_ttx_message(int id, ttx_message_data *data);
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* Like peek, but waits until something is available
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* Provide a valid pointer in data, it can be filled in.
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enum ttx_message get_ttx_message(int id, ttx_message_data *data);
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* Unregisters a client, telling that it won't continue porocessing
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void unregister_ttx_client(int id);
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* Tells the renderer whether to reveal hidden chars.
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void set_ttx_parameters(int id, int reveal);
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* Sets the given page as the page the client is interested in.
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* Use ANY_SUB in subpage for getting all subpages
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void monitor_ttx_page(int id/*client*/, int page, int subpage);
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* Render the provided page to the client, and send the RECEIVED
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* event. Set it as the currently monitored page.
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void monitor_ttx_this(int id, vbi_page *pg);
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* Freezes the current page, no more RECEIVED events are sent until
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void ttx_freeze(int id);
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* Allows sending RECEIVED events to the client.
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void ttx_unfreeze(int id);
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* Returns a pointer to the formatted page the client is rendering
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vbi_page* get_ttx_fmt_page(int id);
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* Returns a pointer to the scaled version of the page. Consider the
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* returned pixbuf as volatile, i.e., any other ttx_ call on the same
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* client can invalidate the returned pointer.
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* Can return NULL if the scaled version doesn't exist, etc...
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GdkPixbuf * get_scaled_ttx_page(int id);
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* Resizes the rendered size of the page
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void resize_ttx_page(int id, int w, int h);
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* Renders the currently monitored page into the given drawable.
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void render_ttx_page(int id, GdkDrawable *drawable, GdkGC *gc,
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gint src_x, gint src_y,
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gint dest_x, gint dest_y,
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* Renders into the given bitmap (that must have appropiate
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* dimensions) the transparency info of the current page.
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void render_ttx_mask(int id, GdkBitmap *bitmap);
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* Updates the blinking items in the page.
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void refresh_ttx_page(int id, GtkWidget *drawable);
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/* Startups the VBI engine (doesn't open devices) */
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void startup_zvbi(void);
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/* Shuts down the VBI engine */
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void shutdown_zvbi(void);
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#include "frequencies.h"
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zvbi_decoder_fn (const vbi_sliced * sliced,
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zvbi_chsw_fn (const tveng_tuned_channel *channel,
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zvbi_add_decoder (zvbi_decoder_fn * decoder,
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zvbi_remove_decoder (zvbi_decoder_fn * decoder,
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/* Open the configured VBI device, FALSE on error */
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zvbi_open_device(char *device);
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zvbi_open_device (const char * dev_name);
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/* Closes the VBI device */
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zvbi_close_device(void);
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Returns the global vbi object, or NULL if vbi isn't enabled or
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doesn't work. You can safely use this function to test if VBI works
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(it will return NULL if it doesn't).
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zvbi_close_device (void);
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/* Returns the global vbi object, or NULL if vbi isn't enabled or
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doesn't work. You can safely use this function to test if VBI works
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(it will return NULL if it doesn't). */
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zvbi_get_object(void);
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Returns the model for the vbi object. You can hook into this to know
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when the vbi object is created or destroyed.
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zvbi_get_object (void);
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/* Returns the model for the vbi object. You can hook into this to know
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when the vbi object is created or destroyed. */
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zvbi_get_model(void);
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Builds a dialog showing the info we get from the VBI device
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a) network info, b) program info
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GtkWidget *zvbi_build_network_info(void);
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GtkWidget *zvbi_build_program_info(void);
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Returns the g_strdup'ed name of the current station,
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if known, or NULL. The returned value should be g_free'ed
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Clears the station_name_known flag. Useful when you are changing
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freqs fast and you want to know the current station
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zvbi_name_unknown(void);
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Called when changing channels, inputs, etc, tells the decoding engine
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to flush the cache, triggers, etc.
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zvbi_channel_switched(void);
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Reset our knowledge about network and program,
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update main title and info dialogs.
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zvbi_reset_network_info(void);
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zvbi_reset_program_info(void);
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Returns the current program title ("Foo", "Bar", "Unknown"),
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the returned string must be g_free'ed
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zvbi_current_title(void);
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Returns the current program rating ("TV-MA", "Not rated"),
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don't free, just a pointer.
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zvbi_current_rating(void);
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Returns the currently selected
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Teletext implementation level (for vbi_fetch_*)
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zvbi_get_model (void);
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/* Returns the g_strdup'ed name of the current station, if known, or
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NULL. The returned value should be g_free'ed. */
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zvbi_get_current_network_name (void);
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/* Clears the station_name_known flag. Useful when you are changing
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freqs fast and you want to know the current station */
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zvbi_name_unknown (void);
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/* Called when changing channels, inputs, etc, tells the decoding engine
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to flush the cache, triggers, etc. */
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zvbi_channel_switched (void);
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/* Reset our knowledge about network and program,
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update main title and info dialogs. */
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zvbi_reset_network_info (void);
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zvbi_reset_program_info (void);
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/* Returns the current program title ("Foo", "Bar", "Unknown"),
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the returned string must be g_free'ed */
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zvbi_current_title (void);
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/* Returns the current program rating ("TV-MA", "Not rated"),
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don't free, just a pointer. */
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zvbi_current_rating (void);
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/* Returns the currently selected
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Teletext implementation level (for vbi_fetch_*) */
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zvbi_teletext_level (void);
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#endif /* HAVE_LIBZVBI */
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zvbi_teletext_level (void);
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#else /* !HAVE_LIBZVBI */
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/* Startups the VBI engine (doesn't open devices) */
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/* Shuts down the VBI engine */
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shutdown_zvbi (void);
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typedef int vbi_pgno;
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#endif /* !HAVE_LIBZVBI */
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/* Modifies the gui according to VBI availability. */
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vbi_gui_sensitive (gboolean on);
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#endif /* zvbi.h */
added
removed
src/zvbi.h
