X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fcodec%2Fzvbi.c;h=e716f90f1a9ea80675c6f8fdaf052caf2f13fc61;hb=e39842845193a0a263ae548fd8e10fce631d2f09;hp=cd3df62c4faab31de11cbb0b91f00d209cad2503;hpb=79f46d52914275457f18a9dc71ce80f0f426ae34;p=vlc diff --git a/modules/codec/zvbi.c b/modules/codec/zvbi.c index cd3df62c4f..e716f90f1a 100644 --- a/modules/codec/zvbi.c +++ b/modules/codec/zvbi.c @@ -4,7 +4,8 @@ * Copyright (C) 2007, M2X * $Id$ * - * Authors: Derk-Jan Hartman for M2X + * Authors: Derk-Jan Hartman + * Jean-Paul Saman * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -36,71 +37,160 @@ * EIA-608 Revision A: Closed Captioning [CC] (libzvbi) */ -#include +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include +#include #include -#include #include -#include "vlc_vout.h" -#include "vlc_bits.h" -#include "vlc_codec.h" - -typedef enum { - DATA_UNIT_EBU_TELETEXT_NON_SUBTITLE = 0x02, - DATA_UNIT_EBU_TELETEXT_SUBTITLE = 0x03, - DATA_UNIT_EBU_TELETEXT_INVERTED = 0x0C, - - DATA_UNIT_ZVBI_WSS_CPR1204 = 0xB4, - DATA_UNIT_ZVBI_CLOSED_CAPTION_525 = 0xB5, - DATA_UNIT_ZVBI_MONOCHROME_SAMPLES_525 = 0xB6, - - DATA_UNIT_VPS = 0xC3, - DATA_UNIT_WSS = 0xC4, - DATA_UNIT_CLOSED_CAPTION = 0xC5, - DATA_UNIT_MONOCHROME_SAMPLES = 0xC6, - - DATA_UNIT_STUFFING = 0xFF, -} data_unit_id; +#include +#include +#include /***************************************************************************** * Module descriptor. *****************************************************************************/ static int Open ( vlc_object_t * ); static void Close( vlc_object_t * ); -static subpicture_t *Decode( decoder_t *, block_t ** ); #define PAGE_TEXT N_("Teletext page") #define PAGE_LONGTEXT N_("Open the indicated Teletext page." \ "Default page is index 100") +#define OPAQUE_TEXT N_("Text is always opaque") +#define OPAQUE_LONGTEXT N_("Setting vbi-opaque to false " \ + "makes the boxed text transparent." ) + +#define POS_TEXT N_("Teletext alignment") +#define POS_LONGTEXT N_( \ + "You can enforce the teletext position on the video " \ + "(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \ + "also use combinations of these values, eg. 6 = top-right).") + +#define TELX_TEXT N_("Teletext text subtitles") +#define TELX_LONGTEXT N_( "Output teletext subtitles as text " \ + "instead of as RGBA" ) + +static const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 }; +static const char *const ppsz_pos_descriptions[] = +{ N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"), + N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") }; + vlc_module_begin(); - set_description( _("VBI and Teletext decoder") ); - set_shortname( "VBI & Teletext" ); + set_description( N_("VBI and Teletext decoder") ); + set_shortname( N_("VBI & Teletext") ); set_capability( "decoder", 51 ); set_category( CAT_INPUT ); set_subcategory( SUBCAT_INPUT_SCODEC ); set_callbacks( Open, Close ); add_integer( "vbi-page", 100, NULL, - PAGE_TEXT, PAGE_LONGTEXT, VLC_FALSE ); + PAGE_TEXT, PAGE_LONGTEXT, false ); + add_bool( "vbi-opaque", true, NULL, + OPAQUE_TEXT, OPAQUE_LONGTEXT, false ); + add_integer( "vbi-position", 4, NULL, POS_TEXT, POS_LONGTEXT, false ); + change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL ); + add_bool( "vbi-text", false, NULL, + TELX_TEXT, TELX_LONGTEXT, false ); vlc_module_end(); /**************************************************************************** * Local structures ****************************************************************************/ +// #define ZVBI_DEBUG + +//Guessing table for missing "default region triplet" +static const int pi_default_triplet[] = { + 0, 0, // slo cze + 8, // pol + 24,24,24,24, //ssc scr slv rum + 32,32,32,32,32, //est lit rus bul ukr + 48,48, //gre ell + 64, //ara + 88, //heb + 16 }; //default +static const char *const ppsz_default_triplet[] = { + "slo", "cze", + "pol", + "ssc", "scr", "slv", "rum", + "est", "lit", "rus", "bul", "ukr", + "gre", "ell", + "ara", + "heb", + NULL +}; + +typedef enum { + ZVBI_KEY_RED = 'r' << 16, + ZVBI_KEY_GREEN = 'g' << 16, + ZVBI_KEY_YELLOW = 'y' << 16, + ZVBI_KEY_BLUE = 'b' << 16, + ZVBI_KEY_INDEX = 'i' << 16, +} ttxt_key_id; + +typedef enum { + DATA_UNIT_EBU_TELETEXT_NON_SUBTITLE = 0x02, + DATA_UNIT_EBU_TELETEXT_SUBTITLE = 0x03, + DATA_UNIT_EBU_TELETEXT_INVERTED = 0x0C, + + DATA_UNIT_ZVBI_WSS_CPR1204 = 0xB4, + DATA_UNIT_ZVBI_CLOSED_CAPTION_525 = 0xB5, + DATA_UNIT_ZVBI_MONOCHROME_SAMPLES_525 = 0xB6, + + DATA_UNIT_VPS = 0xC3, + DATA_UNIT_WSS = 0xC4, + DATA_UNIT_CLOSED_CAPTION = 0xC5, + DATA_UNIT_MONOCHROME_SAMPLES = 0xC6, + + DATA_UNIT_STUFFING = 0xFF, +} data_unit_id; + struct decoder_sys_t { - vbi_decoder * p_vbi_dec; - vbi_dvb_demux * p_dvb_demux; - unsigned int i_wanted_page; - unsigned int i_last_page; - vlc_bool_t b_update; -} + vbi_decoder * p_vbi_dec; + vbi_dvb_demux * p_dvb_demux; + unsigned int i_last_page; + bool b_update; + bool b_text; /* Subtitles as text */ + + vlc_mutex_t lock; /* Lock to protect the following variables */ + /* Positioning of Teletext images */ + int i_align; + /* */ + unsigned int i_wanted_page; + unsigned int i_wanted_subpage; + /* */ + bool b_opaque; + struct { + int pgno, subno; + } nav_link[6]; + int i_key[3]; +}; + +static subpicture_t *Decode( decoder_t *, block_t ** ); -static void event_handler( vbi_event *ev, void *user_data ); +static subpicture_t *Subpicture( decoder_t *p_dec, video_format_t *p_fmt, + bool b_text, + int i_columns, int i_rows, + int i_align, mtime_t i_pts ); + +static void EventHandler( vbi_event *ev, void *user_data ); +static int OpaquePage( picture_t *p_src, const vbi_page p_page, + const video_format_t fmt, bool b_opaque ); + +/* Properties callbacks */ static int RequestPage( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ); +static int Opaque( vlc_object_t *p_this, char const *psz_cmd, + vlc_value_t oldval, vlc_value_t newval, void *p_data ); +static int Position( vlc_object_t *p_this, char const *psz_cmd, + vlc_value_t oldval, vlc_value_t newval, void *p_data ); +static int EventKey( vlc_object_t *p_this, char const *psz_cmd, + vlc_value_t oldval, vlc_value_t newval, void *p_data ); /***************************************************************************** * Open: probe the decoder and return score @@ -112,42 +202,82 @@ static int Open( vlc_object_t *p_this ) { decoder_t *p_dec = (decoder_t *) p_this; decoder_sys_t *p_sys = NULL; - vlc_value_t val; - int i; if( p_dec->fmt_in.i_codec != VLC_FOURCC('t','e','l','x') ) - { return VLC_EGENERIC; - } p_dec->pf_decode_sub = Decode; p_sys = p_dec->p_sys = malloc( sizeof(decoder_sys_t) ); if( p_sys == NULL ) - { - msg_Err( p_dec, "out of memory" ); return VLC_ENOMEM; - } memset( p_sys, 0, sizeof(decoder_sys_t) ); + p_sys->i_key[0] = p_sys->i_key[1] = p_sys->i_key[2] = '*' - '0'; + p_sys->b_update = false; p_sys->p_vbi_dec = vbi_decoder_new(); p_sys->p_dvb_demux = vbi_dvb_pes_demux_new( NULL, NULL ); + vlc_mutex_init( &p_sys->lock ); if( (p_sys->p_vbi_dec == NULL) || (p_sys->p_dvb_demux == NULL) ) { msg_Err( p_dec, "VBI decoder/demux could not be created." ); + Close( p_this ); return VLC_ENOMEM; } - vbi_event_handler_register( p_sys->p_vbi_dec, VBI_EVENT_TTX_PAGE | - VBI_EVENT_CAPTION | VBI_EVENT_NETWORK | - VBI_EVENT_ASPECT | VBI_EVENT_PROG_INFO, - event_handler, p_dec ); + /* Some broadcasters in countries with level 1 and level 1.5 still not send a G0 to do + * matches against table 32 of ETSI 300 706. We try to do some best effort guessing + * This is not perfect, but might handle some cases where we know the vbi language + * is known. It would be better if people started sending G0 */ + for( int i = 0; ppsz_default_triplet[i] != NULL; i++ ) + { + if( p_dec->fmt_in.psz_language && !strcasecmp( p_dec->fmt_in.psz_language, ppsz_default_triplet[i] ) ) + { + vbi_teletext_set_default_region( p_sys->p_vbi_dec, pi_default_triplet[i]); + msg_Dbg( p_dec, "overwriting default zvbi region: %d", pi_default_triplet[i] ); + } + } + + vbi_event_handler_register( p_sys->p_vbi_dec, VBI_EVENT_TTX_PAGE | VBI_EVENT_NETWORK | +#ifdef ZVBI_DEBUG + VBI_EVENT_CAPTION | VBI_EVENT_TRIGGER | + VBI_EVENT_ASPECT | VBI_EVENT_PROG_INFO | VBI_EVENT_NETWORK_ID | +#endif + 0 , EventHandler, p_dec ); /* Create the var on vlc_global. */ - p_sys->i_wanted_page = var_CreateGetInteger( p_dec->p_libvlc_global, - "vbi-page" ); - var_AddCallback( p_dec->p_libvlc_global, "vbi-page", + p_sys->i_wanted_page = var_CreateGetInteger( p_dec, "vbi-page" ); + var_AddCallback( p_dec, "vbi-page", RequestPage, p_sys ); + + /* Check if the Teletext track has a known "initial page". */ + if( p_sys->i_wanted_page == 100 && p_dec->fmt_in.subs.dvb.i_id != -1 ) + { + int i_wanted_magazine = p_dec->fmt_in.subs.dvb.i_id >> 16; + if( i_wanted_magazine == 0 ) + i_wanted_magazine = 8; + p_sys->i_wanted_page = vbi_bcd2dec(p_dec->fmt_in.subs.dvb.i_id & 0xff); + p_sys->i_wanted_page += 100*i_wanted_magazine; + } + p_sys->i_wanted_subpage = VBI_ANY_SUBNO; + + p_sys->b_opaque = var_CreateGetBool( p_dec, "vbi-opaque" ); + var_AddCallback( p_dec, "vbi-opaque", Opaque, p_sys ); + + p_sys->i_align = var_CreateGetInteger( p_dec, "vbi-position" ); + var_AddCallback( p_dec, "vbi-position", Position, p_sys ); + + p_sys->b_text = var_CreateGetBool( p_dec, "vbi-text" ); +// var_AddCallback( p_dec, "vbi-text", Text, p_sys ); + + /* Listen for keys */ + var_AddCallback( p_dec->p_libvlc, "key-pressed", EventKey, p_sys ); + + es_format_Init( &p_dec->fmt_out, SPU_ES, VLC_FOURCC( 's','p','u',' ' ) ); + if( p_sys->b_text ) + p_dec->fmt_out.video.i_chroma = VLC_FOURCC('T','E','X','T'); + else + p_dec->fmt_out.video.i_chroma = VLC_FOURCC('R','G','B','A'); return VLC_SUCCESS; } @@ -159,13 +289,29 @@ static void Close( vlc_object_t *p_this ) decoder_t *p_dec = (decoder_t*) p_this; decoder_sys_t *p_sys = p_dec->p_sys; - if( p_sys->p_vbi_dec ) vbi_decoder_delete( p_sys->p_vbi_dec ); - if( p_sys->p_dvb_demux ) vbi_dvb_demux_delete( p_sys->p_dvb_demux ); + var_DelCallback( p_dec, "vbi-position", Position, p_sys ); + var_DelCallback( p_dec, "vbi-opaque", Opaque, p_sys ); + var_DelCallback( p_dec, "vbi-page", RequestPage, p_sys ); + var_DelCallback( p_dec->p_libvlc, "key-pressed", EventKey, p_sys ); + + vlc_mutex_destroy( &p_sys->lock ); + + if( p_sys->p_vbi_dec ) + vbi_decoder_delete( p_sys->p_vbi_dec ); + if( p_sys->p_dvb_demux ) + vbi_dvb_demux_delete( p_sys->p_dvb_demux ); free( p_sys ); } #define MAX_SLICES 32 +#ifdef WORDS_BIGENDIAN +# define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_BE +#else +# define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_LE +#endif + + /***************************************************************************** * Decode: *****************************************************************************/ @@ -175,13 +321,14 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block ) block_t *p_block; subpicture_t *p_spu = NULL; video_format_t fmt; - vlc_bool_t b_cached = VLC_FALSE; + bool b_cached = false; vbi_page p_page; - uint8_t *p_pos; + const uint8_t *p_pos; unsigned int i_left; if( (pp_block == NULL) || (*pp_block == NULL) ) return NULL; + p_block = *pp_block; *pp_block = NULL; @@ -201,24 +348,114 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block ) vbi_decode( p_sys->p_vbi_dec, p_sliced, i_lines, i_pts / 90000.0 ); } -stop_decode: + /* */ + vlc_mutex_lock( &p_sys->lock ); + const int i_align = p_sys->i_align; + const unsigned int i_wanted_page = p_sys->i_wanted_page; + const unsigned int i_wanted_subpage = p_sys->i_wanted_subpage; + const bool b_opaque = p_sys->b_opaque; + vlc_mutex_unlock( &p_sys->lock ); + /* Try to see if the page we want is in the cache yet */ b_cached = vbi_fetch_vt_page( p_sys->p_vbi_dec, &p_page, - vbi_dec2bcd( p_sys->i_wanted_page ), - VBI_ANY_SUBNO, VBI_WST_LEVEL_3p5, - 25, FALSE ); + vbi_dec2bcd( i_wanted_page ), + i_wanted_subpage, VBI_WST_LEVEL_3p5, + 25, true ); - if( !b_cached ) + if( i_wanted_page == p_sys->i_last_page && !p_sys->b_update ) goto error; - if( (p_sys->i_wanted_page == p_sys->i_last_page) && - (p_sys->b_update != VLC_TRUE) ) + if( !b_cached ) + { + if( p_sys->i_last_page != i_wanted_page ) + { + /* We need to reset the subtitle */ + p_spu = Subpicture( p_dec, &fmt, true, + p_page.columns, p_page.rows, + i_align, p_block->i_pts ); + if( !p_spu ) + goto error; + p_spu->p_region->psz_text = strdup(""); + + p_sys->b_update = true; + p_sys->i_last_page = i_wanted_page; + goto exit; + } goto error; + } - p_sys->i_last_page = p_sys->i_wanted_page; - p_sys->b_update = VLC_FALSE; + p_sys->b_update = false; + p_sys->i_last_page = i_wanted_page; +#ifdef ZVBI_DEBUG msg_Dbg( p_dec, "we now have page: %d ready for display", - p_sys->i_wanted_page ); + i_wanted_page ); +#endif + /* If there is a page or sub to render, then we do that here */ + /* Create the subpicture unit */ + p_spu = Subpicture( p_dec, &fmt, p_sys->b_text, + p_page.columns, p_page.rows, + i_align, p_block->i_pts ); + if( !p_spu ) + goto error; + + if( p_sys->b_text ) + { + unsigned int i_textsize = 7000; + int i_total; + char p_text[i_textsize+1]; + + i_total = vbi_print_page_region( &p_page, p_text, i_textsize, + "UTF-8", 0, 0, 0, 0, p_page.columns, p_page.rows ); + p_text[i_total] = '\0'; + /* Strip off the pagenumber */ + if( i_total <= 40 ) + goto error; + p_spu->p_region->psz_text = strdup( &p_text[8] ); + +#ifdef ZVBI_DEBUG + msg_Info( p_dec, "page %x-%x(%d)\n%s", p_page.pgno, p_page.subno, i_total, p_text ); +#endif + } + else + { + picture_t *p_pic = p_spu->p_region->p_picture; + + /* ZVBI is stupid enough to assume pitch == width */ + p_pic->p->i_pitch = 4 * fmt.i_width; + vbi_draw_vt_page( &p_page, ZVBI_PIXFMT_RGBA32, + p_spu->p_region->p_picture->p->p_pixels, 1, 1 ); + + vlc_mutex_lock( &p_sys->lock ); + memcpy( p_sys->nav_link, &p_page.nav_link, sizeof( p_sys->nav_link )) ; + vlc_mutex_unlock( &p_sys->lock ); + + OpaquePage( p_pic, p_page, fmt, b_opaque ); + } + +exit: + vbi_unref_page( &p_page ); + block_Release( p_block ); + return p_spu; + +error: + vbi_unref_page( &p_page ); + if( p_spu != NULL ) + { + p_dec->pf_spu_buffer_del( p_dec, p_spu ); + p_spu = NULL; + } + + block_Release( p_block ); + return NULL; +} + +static subpicture_t *Subpicture( decoder_t *p_dec, video_format_t *p_fmt, + bool b_text, + int i_columns, int i_rows, int i_align, + mtime_t i_pts ) +{ + video_format_t fmt; + subpicture_t *p_spu; /* If there is a page or sub to render, then we do that here */ /* Create the subpicture unit */ @@ -226,110 +463,251 @@ stop_decode: if( !p_spu ) { msg_Warn( p_dec, "can't get spu buffer" ); - goto error; + return NULL; } - /* Create a new subpicture region */ memset( &fmt, 0, sizeof(video_format_t) ); - fmt.i_chroma = VLC_FOURCC('R','G','B','A'); - fmt.i_aspect = VOUT_ASPECT_FACTOR; - fmt.i_sar_num = fmt.i_sar_den = 1; - fmt.i_width = fmt.i_visible_width = p_page.columns * 12; - fmt.i_height = fmt.i_visible_height = p_page.rows * 10; - fmt.i_bits_per_pixel = 32; + fmt.i_chroma = b_text ? VLC_FOURCC('T','E','X','T') : + VLC_FOURCC('R','G','B','A'); + fmt.i_aspect = b_text ? 0 : VOUT_ASPECT_FACTOR; + if( b_text ) + { + fmt.i_bits_per_pixel = 0; + } + else + { + fmt.i_sar_num = fmt.i_sar_den = 1; + fmt.i_width = fmt.i_visible_width = i_columns * 12; + fmt.i_height = fmt.i_visible_height = i_rows * 10; + fmt.i_bits_per_pixel = 32; + } fmt.i_x_offset = fmt.i_y_offset = 0; - p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt ); + p_spu->p_region = subpicture_region_New( &fmt ); if( p_spu->p_region == NULL ) { msg_Err( p_dec, "cannot allocate SPU region" ); - goto error; + p_dec->pf_spu_buffer_del( p_dec, p_spu ); + return NULL; } p_spu->p_region->i_x = 0; p_spu->p_region->i_y = 0; + p_spu->p_region->i_align = i_align; - /* Normal text subs, easy markup */ - p_spu->i_flags = SUBPICTURE_ALIGN_TOP; - - p_spu->i_start = p_block->i_pts; + p_spu->i_start = i_pts; p_spu->i_stop = 0; - p_spu->b_ephemer = VLC_TRUE; - p_spu->b_absolute = VLC_FALSE; - p_spu->b_pausable = VLC_TRUE; - p_spu->i_original_picture_width = p_page.columns * 12; - p_spu->i_original_picture_height = p_page.rows * 10; - - vbi_draw_vt_page( &p_page, VBI_PIXFMT_RGBA32_LE, - p_spu->p_region->picture.p->p_pixels, 1, 1 ); - p_spu->p_region->picture.p->i_lines = p_page.rows * 10; - p_spu->p_region->picture.p->i_pitch = p_page.columns * 12 * 4; - -#if 0 - unsigned int i_total, i_textsize = 7000; - char p_text[7000]; - - i_total = vbi_print_page_region( &p_page, p_text, i_textsize, "ISO-8859-1", 0, 0, 0, 0, p_page.columns, p_page.rows ); - p_text[i_total] = '\0'; - - msg_Dbg( p_dec, "page %x-%x\n%s", p_page.pgno, p_page.subno, p_text ); -#endif + p_spu->b_ephemer = true; + p_spu->b_absolute = false; - //if( p_page != NULL) - vbi_unref_page( &p_page ); - - block_Release( p_block ); - return p_spu; - -error: - //if( p_page != NULL) - vbi_unref_page( &p_page ); - if ( p_spu != NULL ) + if( !b_text ) { - p_dec->pf_spu_buffer_del( p_dec, p_spu ); - p_spu = NULL; + p_spu->i_original_picture_width = fmt.i_width; + p_spu->i_original_picture_height = fmt.i_height; } - block_Release( p_block ); - return NULL; + /* */ + *p_fmt = fmt; + return p_spu; } -static void event_handler( vbi_event *ev, void *user_data) +static void EventHandler( vbi_event *ev, void *user_data ) { decoder_t *p_dec = (decoder_t *)user_data; decoder_sys_t *p_sys = p_dec->p_sys; if( ev->type == VBI_EVENT_TTX_PAGE ) { - /* msg_Dbg( p_dec, "Page %03x.%02x ", +#ifdef ZVBI_DEBUG + msg_Info( p_dec, "Page %03x.%02x ", ev->ev.ttx_page.pgno, ev->ev.ttx_page.subno & 0xFF); - */ +#endif if( p_sys->i_last_page == vbi_bcd2dec( ev->ev.ttx_page.pgno ) ) - p_sys->b_update = VLC_TRUE; - + p_sys->b_update = true; +#ifdef ZVBI_DEBUG if( ev->ev.ttx_page.clock_update ) msg_Dbg( p_dec, "clock" ); if( ev->ev.ttx_page.header_update ) msg_Dbg( p_dec, "header" ); +#endif } + else if( ev->type == VBI_EVENT_CLOSE ) + msg_Dbg( p_dec, "Close event" ); else if( ev->type == VBI_EVENT_CAPTION ) msg_Dbg( p_dec, "Caption line: %x", ev->ev.caption.pgno ); else if( ev->type == VBI_EVENT_NETWORK ) - msg_Dbg( p_dec, "Network change" ); + { + msg_Dbg( p_dec, "Network change"); + vbi_network n = ev->ev.network; + msg_Dbg( p_dec, "Network id:%d name: %s, call: %s ", n.nuid, n.name, n.call ); + } + else if( ev->type == VBI_EVENT_TRIGGER ) + msg_Dbg( p_dec, "Trigger event" ); else if( ev->type == VBI_EVENT_ASPECT ) msg_Dbg( p_dec, "Aspect update" ); - else if( ev->type == VBI_EVENT_NETWORK ) + else if( ev->type == VBI_EVENT_PROG_INFO ) msg_Dbg( p_dec, "Program info received" ); + else if( ev->type == VBI_EVENT_NETWORK_ID ) + msg_Dbg( p_dec, "Network ID changed" ); +} + +static int OpaquePage( picture_t *p_src, const vbi_page p_page, + const video_format_t fmt, bool b_opaque ) +{ + unsigned int x, y; + + assert( fmt.i_chroma == VLC_FOURCC('R','G','B','A' ) ); + + /* Kludge since zvbi doesn't provide an option to specify opacity. */ + for( y = 0; y < fmt.i_height; y++ ) + { + for( x = 0; x < fmt.i_width; x++ ) + { + const vbi_opacity opacity = p_page.text[ y/10 * p_page.columns + x/12 ].opacity; + const int background = p_page.text[ y/10 * p_page.columns + x/12 ].background; + uint32_t *p_pixel = (uint32_t*)&p_src->p->p_pixels[y * p_src->p->i_pitch + 4*x]; + + switch( opacity ) + { + /* Show video instead of this character */ + case VBI_TRANSPARENT_SPACE: + *p_pixel = 0; + break; + /* Display foreground and background color */ + /* To make the boxed text "closed captioning" transparent + * change true to false. + */ + case VBI_OPAQUE: + /* alpha blend video into background color */ + case VBI_SEMI_TRANSPARENT: + if( b_opaque ) + break; + /* Full text transparency. only foreground color is show */ + case VBI_TRANSPARENT_FULL: + if( (*p_pixel) == (0xff000000 | p_page.color_map[background] ) ) + *p_pixel = 0; + break; + } + } + } + /* end of kludge */ + return VLC_SUCCESS; } +/* Callbacks */ static int RequestPage( vlc_object_t *p_this, char const *psz_cmd, vlc_value_t oldval, vlc_value_t newval, void *p_data ) { - decoder_sys_t *p_sys = p_data; + decoder_sys_t *p_sys = p_data; + VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); - if( (newval.i_int > 0) && (newval.i_int < 999) ) + vlc_mutex_lock( &p_sys->lock ); + switch( newval.i_int ) + { + case ZVBI_KEY_RED: + p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[0].pgno ); + p_sys->i_wanted_subpage = p_sys->nav_link[0].subno; + break; + case ZVBI_KEY_GREEN: + p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[1].pgno ); + p_sys->i_wanted_subpage = p_sys->nav_link[1].subno; + break; + case ZVBI_KEY_YELLOW: + p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[2].pgno ); + p_sys->i_wanted_subpage = p_sys->nav_link[2].subno; + break; + case ZVBI_KEY_BLUE: + p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[3].pgno ); + p_sys->i_wanted_subpage = p_sys->nav_link[3].subno; + break; + case ZVBI_KEY_INDEX: + p_sys->i_wanted_page = vbi_bcd2dec( p_sys->nav_link[5].pgno ); /* #4 is SKIPPED */ + p_sys->i_wanted_subpage = p_sys->nav_link[5].subno; + break; + } + if( newval.i_int > 0 && newval.i_int < 999 ) + { p_sys->i_wanted_page = newval.i_int; + p_sys->i_wanted_subpage = VBI_ANY_SUBNO; + } + vlc_mutex_unlock( &p_sys->lock ); + + return VLC_SUCCESS; +} + +static int Opaque( vlc_object_t *p_this, char const *psz_cmd, + vlc_value_t oldval, vlc_value_t newval, void *p_data ) +{ + decoder_sys_t *p_sys = p_data; + VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); + + vlc_mutex_lock( &p_sys->lock ); + p_sys->b_opaque = newval.b_bool; + p_sys->b_update = true; + vlc_mutex_unlock( &p_sys->lock ); + + return VLC_SUCCESS; +} + +static int Position( vlc_object_t *p_this, char const *psz_cmd, + vlc_value_t oldval, vlc_value_t newval, void *p_data ) +{ + decoder_sys_t *p_sys = p_data; + VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); + + vlc_mutex_lock( &p_sys->lock ); + p_sys->i_align = newval.i_int; + vlc_mutex_unlock( &p_sys->lock ); + + return VLC_SUCCESS; +} + +static int EventKey( vlc_object_t *p_this, char const *psz_cmd, + vlc_value_t oldval, vlc_value_t newval, void *p_data ) +{ + decoder_sys_t *p_sys = p_data; + VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); + + /* FIXME: Capture + and - key for subpage browsing */ + if( newval.i_int == '-' || newval.i_int == '+' ) + { + vlc_mutex_lock( &p_sys->lock ); + if( p_sys->i_wanted_subpage == VBI_ANY_SUBNO && newval.i_int == '+' ) + p_sys->i_wanted_subpage = vbi_dec2bcd(1); + else if ( newval.i_int == '+' ) + p_sys->i_wanted_subpage = vbi_add_bcd( p_sys->i_wanted_subpage, 1); + else if( newval.i_int == '-') + p_sys->i_wanted_subpage = vbi_add_bcd( p_sys->i_wanted_subpage, 0xF9999999); /* BCD complement - 1 */ + + if ( !vbi_bcd_digits_greater( p_sys->i_wanted_subpage, 0x00 ) || vbi_bcd_digits_greater( p_sys->i_wanted_subpage, 0x99 ) ) + p_sys->i_wanted_subpage = VBI_ANY_SUBNO; + else + vout_OSDMessage( p_this, DEFAULT_CHAN, "%s: %d", _("Subpage"), vbi_bcd2dec( p_sys->i_wanted_subpage) ); + + p_sys->b_update = true; + vlc_mutex_unlock( &p_sys->lock ); + } + + /* Capture 0-9 for page selection */ + if( newval.i_int < '0' || newval.i_int > '9' ) + return VLC_SUCCESS; + + vlc_mutex_lock( &p_sys->lock ); + p_sys->i_key[0] = p_sys->i_key[1]; + p_sys->i_key[1] = p_sys->i_key[2]; + p_sys->i_key[2] = (int)(newval.i_int - '0'); + vout_OSDMessage( p_this, DEFAULT_CHAN, "%s: %c%c%c", _("Page"), (char)(p_sys->i_key[0]+'0'), (char)(p_sys->i_key[1]+'0'), (char)(p_sys->i_key[2]+'0') ); + + if( p_sys->i_key[0] > 0 && p_sys->i_key[0] <= 8 && + p_sys->i_key[1] >= 0 && p_sys->i_key[1] <= 9 && + p_sys->i_key[2] >= 0 && p_sys->i_key[2] <= 9 ) + { + p_sys->i_wanted_page = p_sys->i_key[0]*100 + p_sys->i_key[1]*10 + p_sys->i_key[2]; + p_sys->i_wanted_subpage = VBI_ANY_SUBNO; + p_sys->i_key[0] = p_sys->i_key[1] = p_sys->i_key[2] = '*' - '0'; + } + vlc_mutex_unlock( &p_sys->lock ); return VLC_SUCCESS; }