X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fcodec%2Fzvbi.c;h=62862ce5bebef26f67ad244396e5c77414a997eb;hb=9925a34ee91b6debfc2f9f137fe9c77e7e0d6241;hp=7800ac70011b4770d9fafe2acc4b360152eb957f;hpb=0b14c73d42ed99afc9d4234c8399315aab2c45ae;p=vlc diff --git a/modules/codec/zvbi.c b/modules/codec/zvbi.c index 7800ac7001..62862ce5be 100644 --- a/modules/codec/zvbi.c +++ b/modules/codec/zvbi.c @@ -7,20 +7,21 @@ * 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 - * the Free Software Foundation; either version 2 of the License, or + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. + * You should have received a copy of the GNU Lesser General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ + /***************************************************************************** * * information on teletext format can be found here : @@ -41,46 +42,24 @@ # include "config.h" #endif -#include +#include #include #include -#include #include -#include "vlc_vout.h" -#include "vlc_bits.h" -#include "vlc_codec.h" -#include "vlc_image.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 /***************************************************************************** * 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_TEXT N_("Teletext transparency") #define OPAQUE_LONGTEXT N_("Setting vbi-opaque to false " \ "makes the boxed text transparent." ) @@ -94,70 +73,129 @@ static subpicture_t *Decode( decoder_t *, block_t ** ); #define TELX_LONGTEXT N_( "Output teletext subtitles as text " \ "instead of as RGBA" ) -// #define ZVBI_DEBUG - 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( 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, 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, 0 ); - add_bool( "vbi-text", false, NULL, - TELX_TEXT, TELX_LONGTEXT, false ); -vlc_module_end(); +vlc_module_begin () + 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, + PAGE_TEXT, PAGE_LONGTEXT, false ) + add_bool( "vbi-opaque", true, + OPAQUE_TEXT, OPAQUE_LONGTEXT, false ) + add_integer( "vbi-position", 4, POS_TEXT, POS_LONGTEXT, false ) + change_integer_list( pi_pos_values, ppsz_pos_descriptions ); + add_bool( "vbi-text", false, + 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, 0, 0, // slo slk cze ces + 8, // pol + 24,24,24,24,24, //scc scr srp hrv slv + 24,24, //rum ron + 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", "slk", "cze", "ces", + "pol", + "scc", "scr", "srp", "hrv", "slv", + "rum", "ron", + "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; + +#define MAX_SLICES 32 + struct decoder_sys_t { vbi_decoder * p_vbi_dec; - vbi_dvb_demux * p_dvb_demux; - unsigned int i_wanted_page; + vbi_sliced p_vbi_sliced[MAX_SLICES]; unsigned int i_last_page; bool b_update; - bool b_opaque; - - /* Subtitles as text */ - bool b_text; + bool b_text; /* Subtitles as text */ + vlc_mutex_t lock; /* Lock to protect the following variables */ /* Positioning of Teletext images */ int i_align; - - /* Misc */ -#if defined(HAVE_FFMPEG_SWSCALE_H) || defined(HAVE_LIBSWSCALE_SWSCALE_H) || defined(HAVE_LIBSWSCALE_TREE) - image_handler_t *p_image; -#endif + /* */ + 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 void event_handler( vbi_event *ev, void *user_data ); +static subpicture_t *Decode( decoder_t *, block_t ** ); + +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, const int text_offset ); +static int get_first_visible_row( vbi_char *p_text, int rows, int columns); +static int get_last_visible_row( vbi_char *p_text, int rows, int columns); + +/* 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 OpaquePage( decoder_t *p_dec, vbi_page p_page, video_format_t fmt, - picture_t **p_src ); -static int Opaque_32bpp( decoder_t *p_dec, vbi_page p_page, video_format_t fmt, - picture_t **p_src ); -static int Opaque_8bpp( decoder_t *p_dec, vbi_page p_page, video_format_t fmt, - picture_t **p_src ); - 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 @@ -170,44 +208,58 @@ static int Open( vlc_object_t *p_this ) decoder_t *p_dec = (decoder_t *) p_this; decoder_sys_t *p_sys = NULL; - if( p_dec->fmt_in.i_codec != VLC_FOURCC('t','e','l','x') ) + if( p_dec->fmt_in.i_codec != VLC_CODEC_TELETEXT ) return VLC_EGENERIC; p_dec->pf_decode_sub = Decode; - p_sys = p_dec->p_sys = malloc( sizeof(decoder_sys_t) ); + p_sys = p_dec->p_sys = calloc( 1, sizeof(decoder_sys_t) ); if( p_sys == NULL ) return VLC_ENOMEM; - memset( p_sys, 0, sizeof(decoder_sys_t) ); - -#if defined(HAVE_FFMPEG_SWSCALE_H) || defined(HAVE_LIBSWSCALE_SWSCALE_H) || defined(HAVE_LIBSWSCALE_TREE) - p_sys->p_image = image_HandlerCreate( VLC_OBJECT(p_dec) ); - if( !p_sys->p_image ) - { - free( p_sys ); - return VLC_ENOMEM; - } -#endif + 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) ) + if( p_sys->p_vbi_dec == NULL ) { - msg_Err( p_dec, "VBI decoder/demux could not be created." ); + msg_Err( p_dec, "VBI decoder 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, "vbi-page" ); - var_AddCallback( p_dec, "vbi-page", - RequestPage, p_sys ); + 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.teletext.i_magazine != -1 ) + { + p_sys->i_wanted_page = 100 * p_dec->fmt_in.subs.teletext.i_magazine + + vbi_bcd2dec( p_dec->fmt_in.subs.teletext.i_page ); + var_SetInteger( p_dec, "vbi-page", p_sys->i_wanted_page ); + } + 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 ); @@ -218,15 +270,14 @@ static int Open( vlc_object_t *p_this ) p_sys->b_text = var_CreateGetBool( p_dec, "vbi-text" ); // var_AddCallback( p_dec, "vbi-text", Text, p_sys ); - es_format_Init( &p_dec->fmt_out, SPU_ES, VLC_FOURCC( 's','p','u',' ' ) ); + /* Listen for keys */ + var_AddCallback( p_dec->p_libvlc, "key-pressed", EventKey, p_dec ); + + es_format_Init( &p_dec->fmt_out, SPU_ES, VLC_CODEC_SPU ); if( p_sys->b_text ) - p_dec->fmt_out.video.i_chroma = VLC_FOURCC('T','E','X','T'); + p_dec->fmt_out.video.i_chroma = VLC_CODEC_TEXT; else -#if defined(HAVE_FFMPEG_SWSCALE_H) || defined(HAVE_LIBSWSCALE_SWSCALE_H) || defined(HAVE_LIBSWSCALE_TREE) - p_dec->fmt_out.video.i_chroma = VLC_FOURCC('Y','U','V','A'); -#else - p_dec->fmt_out.video.i_chroma = VLC_FOURCC('R','G','B','A'); -#endif + p_dec->fmt_out.video.i_chroma = VLC_CODEC_RGBA; return VLC_SUCCESS; } @@ -238,34 +289,35 @@ 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; - var_Destroy( p_dec, "vbi-opaque" ); - var_Destroy( p_dec, "vbi-page" ); - var_DelCallback( p_dec, "vbi-page", RequestPage, p_sys ); + 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_dec ); -#if defined(HAVE_FFMPEG_SWSCALE_H) || defined(HAVE_LIBSWSCALE_SWSCALE_H) || defined(HAVE_LIBSWSCALE_TREE) - if( p_sys->p_image ) image_HandlerDelete( p_sys->p_image ); -#endif - 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 ); + vlc_mutex_destroy( &p_sys->lock ); + + if( p_sys->p_vbi_dec ) + vbi_decoder_delete( p_sys->p_vbi_dec ); 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: *****************************************************************************/ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block ) { - decoder_sys_t *p_sys = (decoder_sys_t *) p_dec->p_sys; + decoder_sys_t *p_sys = p_dec->p_sys; block_t *p_block; subpicture_t *p_spu = NULL; video_format_t fmt; bool b_cached = false; vbi_page p_page; - const uint8_t *p_pos; - unsigned int i_left; if( (pp_block == NULL) || (*pp_block == NULL) ) return NULL; @@ -273,188 +325,147 @@ static subpicture_t *Decode( decoder_t *p_dec, block_t **pp_block ) p_block = *pp_block; *pp_block = NULL; - p_pos = p_block->p_buffer; - i_left = p_block->i_buffer; - - while( i_left > 0 ) + if( p_block->i_buffer > 0 && + ( ( p_block->p_buffer[0] >= 0x10 && p_block->p_buffer[0] <= 0x1f ) || + ( p_block->p_buffer[0] >= 0x99 && p_block->p_buffer[0] <= 0x9b ) ) ) { - vbi_sliced p_sliced[MAX_SLICES]; - unsigned int i_lines = 0; - int64_t i_pts; + vbi_sliced *p_sliced = p_sys->p_vbi_sliced; + unsigned int i_lines = 0; + + p_block->i_buffer--; + p_block->p_buffer++; + while( p_block->i_buffer >= 2 ) + { + int i_id = p_block->p_buffer[0]; + unsigned i_size = p_block->p_buffer[1]; + + if( 2 + i_size > p_block->i_buffer ) + break; - i_lines = vbi_dvb_demux_cor( p_sys->p_dvb_demux, p_sliced, - MAX_SLICES, &i_pts, &p_pos, &i_left ); + if( ( i_id == 0x02 || i_id == 0x03 ) && i_size >= 44 && i_lines < MAX_SLICES ) + { + unsigned line_offset = p_block->p_buffer[2] & 0x1f; + unsigned field_parity = p_block->p_buffer[2] & 0x20; + + p_sliced[i_lines].id = VBI_SLICED_TELETEXT_B; + if( line_offset > 0 ) + p_sliced[i_lines].line = line_offset + (field_parity ? 0 : 313); + else + p_sliced[i_lines].line = 0; + for( int i = 0; i < 42; i++ ) + p_sliced[i_lines].data[i] = vbi_rev8( p_block->p_buffer[4 + i] ); + i_lines++; + } + + p_block->i_buffer -= 2 + i_size; + p_block->p_buffer += 2 + i_size; + } if( i_lines > 0 ) - vbi_decode( p_sys->p_vbi_dec, p_sliced, i_lines, i_pts / 90000.0 ); + vbi_decode( p_sys->p_vbi_dec, p_sliced, i_lines, (double)p_block->i_pts / 1000000 ); } + /* */ + 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 */ + memset( &p_page, 0, sizeof(vbi_page) ); 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 != 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->b_update = false; - p_sys->i_last_page = p_sys->i_wanted_page; + 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 = p_dec->pf_spu_buffer_new( p_dec ); - if( !p_spu ) - { - msg_Warn( p_dec, "can't get spu buffer" ); - goto error; - } - /* Create a new subpicture region */ - memset( &fmt, 0, sizeof(video_format_t) ); - fmt.i_chroma = p_sys->b_text ? VLC_FOURCC('T','E','X','T') : -#if defined(HAVE_FFMPEG_SWSCALE_H) || defined(HAVE_LIBSWSCALE_SWSCALE_H) || defined(HAVE_LIBSWSCALE_TREE) - VLC_FOURCC('Y','U','V','A'); -#else - VLC_FOURCC('R','G','B','A'); + /* Ignore transparent rows at the beginning and end */ + int i_first_row = get_first_visible_row( p_page.text, p_page.rows, p_page.columns ); + if ( i_first_row < 0 ) + goto error; + int i_num_rows = get_last_visible_row( p_page.text, p_page.rows, p_page.columns ) - i_first_row + 1; +#ifdef ZVBI_DEBUG + msg_Dbg( p_dec, "After top and tail of page we have rows %i-%i of %i", + i_first_row + 1, i_first_row + i_num_rows, p_page.rows ); #endif - fmt.i_aspect = p_sys->b_text ? 0 : VOUT_ASPECT_FACTOR; - if( !p_sys->b_text ) - { - 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 = p_sys->b_text ? 0 : 32; - fmt.i_x_offset = fmt.i_y_offset = 0; - p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt ); - if( p_spu->p_region == NULL ) - { - msg_Err( p_dec, "cannot allocate SPU region" ); + /* 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, i_num_rows, + i_align, p_block->i_pts ); + if( !p_spu ) goto error; - } - - p_spu->p_region->i_x = 0; - p_spu->p_region->i_y = 0; - p_spu->p_region->i_align = p_sys->i_align; - - /* Normal text subs, easy markup */ - p_spu->i_flags = SUBPICTURE_ALIGN_BOTTOM; - - p_spu->i_start = (mtime_t) p_block->i_pts; - p_spu->i_stop = (mtime_t) 0; - p_spu->b_ephemer = true; - p_spu->b_absolute = false; - p_spu->b_pausable = true; - if( !p_sys->b_text ) - { - p_spu->i_width = fmt.i_width; - p_spu->i_height = fmt.i_height; - p_spu->i_original_picture_width = p_page.columns * 12; - p_spu->i_original_picture_height = p_page.rows * 10; - } - -#ifdef WORDS_BIGENDIAN -# define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_BE -#else -# define ZVBI_PIXFMT_RGBA32 VBI_PIXFMT_RGBA32_LE -#endif if( p_sys->b_text ) { unsigned int i_textsize = 7000; int i_total; - char p_text[7000]; + 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 ); + "UTF-8", 0, 0, 0, i_first_row, p_page.columns, i_num_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] ); - + p_spu->p_region->psz_text = strdup( p_text ); #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 { -#if defined(HAVE_FFMPEG_SWSCALE_H) || defined(HAVE_LIBSWSCALE_SWSCALE_H) || defined(HAVE_LIBSWSCALE_TREE) - video_format_t fmt_in; - picture_t *p_pic, *p_dest; + picture_t *p_pic = p_spu->p_region->p_picture; - p_pic = ( picture_t * ) malloc( sizeof( picture_t ) ); - if( !p_pic ) - goto error; + /* ZVBI is stupid enough to assume pitch == width */ + p_pic->p->i_pitch = 4 * fmt.i_width; - memset( &fmt_in, 0, sizeof( video_format_t ) ); - memset( p_pic, 0, sizeof( picture_t ) ); + /* Maintain subtitle postion */ + p_spu->p_region->i_y = i_first_row*10; + p_spu->i_original_picture_width = p_page.columns*12; + p_spu->i_original_picture_height = p_page.rows*10; - fmt_in = fmt; - fmt_in.i_chroma = VLC_FOURCC('R','G','B','A'); + vbi_draw_vt_page_region( &p_page, ZVBI_PIXFMT_RGBA32, + p_spu->p_region->p_picture->p->p_pixels, -1, + 0, i_first_row, p_page.columns, i_num_rows, + 1, 1); - vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic, fmt_in.i_chroma, - fmt_in.i_width, fmt_in.i_height, fmt_in.i_aspect ); - if( !p_pic->i_planes ) - { - free( p_pic->p_data_orig ); - free( p_pic ); - goto error; - } - - vbi_draw_vt_page( &p_page, ZVBI_PIXFMT_RGBA32, - p_pic->p->p_pixels, 1, 1 ); - - p_pic->p->i_lines = p_page.rows * 10; - p_pic->p->i_pitch = p_page.columns * 12 * 4; + 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 ); -#ifdef ZVBI_DEBUG - msg_Dbg( p_dec, "page %x-%x(%d,%d)", - p_page.pgno, p_page.subno, - p_page.rows, p_page.columns ); -#endif - p_dest = image_Convert( p_sys->p_image, p_pic, &fmt_in, - &p_spu->p_region->fmt ); - if( !p_dest ) - { - free( p_pic->p_data_orig ); - free( p_pic ); - msg_Err( p_dec, "chroma conversion failed" ); - goto error; - } - OpaquePage( p_dec, p_page, p_spu->p_region->fmt, &p_dest ); - vout_CopyPicture( VLC_OBJECT(p_dec), &(p_spu->p_region->picture), - p_dest ); - - free( p_pic->p_data_orig ); - free( p_pic ); - - free( p_dest->p_data_orig ); - free( p_dest ); -#else - picture_t *p_pic; - - vbi_draw_vt_page( &p_page, ZVBI_PIXFMT_RGBA32, - 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; - - p_pic = &(p_spu->p_region->picture); - OpaquePage( p_dec, p_page, fmt, &p_pic ); -#endif + OpaquePage( p_pic, p_page, fmt, b_opaque, i_first_row * p_page.columns ); } -#undef ZVBI_PIXFMT_RGBA32 - +exit: vbi_unref_page( &p_page ); block_Release( p_block ); return p_spu; @@ -463,7 +474,7 @@ error: vbi_unref_page( &p_page ); if( p_spu != NULL ) { - p_dec->pf_spu_buffer_del( p_dec, p_spu ); + decoder_DeleteSubpicture( p_dec, p_spu ); p_spu = NULL; } @@ -471,7 +482,68 @@ error: return NULL; } -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 ) +{ + 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 */ + p_spu = decoder_NewSubpicture( p_dec, NULL ); + if( !p_spu ) + { + msg_Warn( p_dec, "can't get spu buffer" ); + return NULL; + } + + memset( &fmt, 0, sizeof(video_format_t) ); + fmt.i_chroma = b_text ? VLC_CODEC_TEXT : VLC_CODEC_RGBA; + fmt.i_sar_num = 0; + fmt.i_sar_den = 1; + if( b_text ) + { + fmt.i_bits_per_pixel = 0; + } + else + { + 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 = subpicture_region_New( &fmt ); + if( p_spu->p_region == NULL ) + { + msg_Err( p_dec, "cannot allocate SPU region" ); + decoder_DeleteSubpicture( 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; + + p_spu->i_start = i_pts; + p_spu->i_stop = 0; + p_spu->b_ephemer = true; + p_spu->b_absolute = true; + + if( !b_text ) + { + p_spu->i_original_picture_width = fmt.i_width; + p_spu->i_original_picture_height = fmt.i_height; + } + + /* */ + *p_fmt = fmt; + return p_spu; +} + +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; @@ -485,169 +557,139 @@ static void event_handler( vbi_event *ev, void *user_data ) #endif if( p_sys->i_last_page == vbi_bcd2dec( ev->ev.ttx_page.pgno ) ) p_sys->b_update = true; - +#ifdef ZVBI_DEBUG if( ev->ev.ttx_page.clock_update ) msg_Dbg( p_dec, "clock" ); -#ifdef ZVBI_DEBUG 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( decoder_t *p_dec, vbi_page p_page, - video_format_t fmt, picture_t **p_src ) +static int get_first_visible_row( vbi_char *p_text, int rows, int columns) { - int result = VLC_EGENERIC; - - /* Kludge since zvbi doesn't provide an option to specify opacity. */ - switch( fmt.i_chroma ) + for ( int i = 0; i < rows * columns; i++ ) { - case VLC_FOURCC('R','G','B','A' ): - result = Opaque_32bpp( p_dec, p_page, fmt, p_src ); - break; - case VLC_FOURCC('Y','U','V','A' ): - result = Opaque_8bpp( p_dec, p_page, fmt, p_src ); - break; - default: - msg_Err( p_dec, "chroma not supported %4.4s", (char *)&fmt.i_chroma ); - return VLC_EGENERIC; + if ( p_text[i].opacity != VBI_TRANSPARENT_SPACE ) + { + return i / columns; + } } - return result; + + return rows; } -static int Opaque_32bpp( decoder_t *p_dec, vbi_page p_page, - video_format_t fmt, picture_t **p_src ) +static int get_last_visible_row( vbi_char *p_text, int rows, int columns) { - decoder_sys_t *p_sys = (decoder_sys_t *) p_dec->p_sys; - uint32_t *p_begin, *p_end; - unsigned int x = 0, y = 0; - vbi_opacity opacity; - - /* Kludge since zvbi doesn't provide an option to specify opacity. */ - switch( fmt.i_chroma ) - { - case VLC_FOURCC('R','G','B','A' ): - p_begin = (uint32_t *)(*p_src)->p->p_pixels; - p_end = (uint32_t *)(*p_src)->p->p_pixels + - ( fmt.i_width * fmt.i_height ); - break; - default: - msg_Err( p_dec, "chroma not supported %4.4s", (char *)&fmt.i_chroma ); - return VLC_EGENERIC; - } - - for( ; p_begin < p_end; p_begin++ ) + for ( int i = rows * columns - 1; i >= 0; i-- ) { - opacity = p_page.text[ y / 10 * p_page.columns + x / 12 ].opacity; - switch( opacity ) - { - /* Show video instead of this character */ - case VBI_TRANSPARENT_SPACE: - *p_begin = 0; - break; - /* To make the boxed text "closed captioning" transparent - * change true to false. - */ - case VBI_OPAQUE: - if( p_sys->b_opaque ) - break; - /* Full text transparency. only foreground color is show */ - case VBI_TRANSPARENT_FULL: - *p_begin = 0; - break; - /* Transparency for boxed text */ - case VBI_SEMI_TRANSPARENT: - if( (*p_begin & 0xffffff00) == 0xff ) - *p_begin = 0; - break; - } - x++; - if( x >= fmt.i_width ) + if (p_text[i].opacity != VBI_TRANSPARENT_SPACE) { - x = 0; - y++; + return ( i + columns - 1) / columns; } } - /* end of kludge */ - return VLC_SUCCESS; + + return 0; } -static int Opaque_8bpp( decoder_t *p_dec, vbi_page p_page, - video_format_t fmt, picture_t **p_src ) +static int OpaquePage( picture_t *p_src, const vbi_page p_page, + const video_format_t fmt, bool b_opaque, const int text_offset ) { - decoder_sys_t *p_sys = (decoder_sys_t *) p_dec->p_sys; - uint8_t *p_begin, *p_end; - uint32_t i_width = 0; - unsigned int x = 0, y = 0; - vbi_opacity opacity; + unsigned int x, y; - /* Kludge since zvbi doesn't provide an option to specify opacity. */ - switch( fmt.i_chroma ) - { - case VLC_FOURCC('Y','U','V','A' ): - p_begin = (uint8_t *)(*p_src)->p[A_PLANE].p_pixels; - p_end = (uint8_t *)(*p_src)->p[A_PLANE].p_pixels + - ( fmt.i_height * (*p_src)->p[A_PLANE].i_pitch ); - i_width = (*p_src)->p[A_PLANE].i_pitch; - break; - default: - msg_Err( p_dec, "chroma not supported %4.4s", (char *)&fmt.i_chroma ); - return VLC_EGENERIC; - } + assert( fmt.i_chroma == VLC_CODEC_RGBA ); - for( ; p_begin < p_end; p_begin++ ) + /* Kludge since zvbi doesn't provide an option to specify opacity. */ + for( y = 0; y < fmt.i_height; y++ ) { - opacity = p_page.text[ y / 10 * p_page.columns + x / 12 ].opacity; - switch( opacity ) + for( x = 0; x < fmt.i_width; x++ ) { - /* Show video instead of this character */ - case VBI_TRANSPARENT_SPACE: - *p_begin = 0; - break; - /* To make the boxed text "closed captioning" transparent - * change true to false. - */ - case VBI_OPAQUE: - if( p_sys->b_opaque ) + const vbi_opacity opacity = p_page.text[ text_offset + y/10 * p_page.columns + x/12 ].opacity; + const int background = p_page.text[ text_offset + 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; - /* Full text transparency. only foreground color is show */ - case VBI_TRANSPARENT_FULL: - *p_begin = 0; - break; - /* Transparency for boxed text */ - case VBI_SEMI_TRANSPARENT: - if( (*p_begin & 0xffffff00) == 0xff ) - *p_begin = 0; - break; - } - x++; - if( x >= i_width ) - { - x = 0; - y++; + /* 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; } @@ -658,8 +700,11 @@ static int Opaque( vlc_object_t *p_this, char const *psz_cmd, decoder_sys_t *p_sys = p_data; VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); - if( p_sys ) - p_sys->b_opaque = newval.b_bool; + 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; } @@ -669,7 +714,66 @@ static int Position( vlc_object_t *p_this, char const *psz_cmd, decoder_sys_t *p_sys = p_data; VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); - if( p_sys ) - p_sys->i_align = newval.i_int; + 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_t *p_dec = p_data; + decoder_sys_t *p_sys = p_dec->p_sys; + + VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED( p_this ); + + /* 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 + msg_Info( p_dec, "subpage: %d", + 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'); + msg_Info( p_dec, "page: %c%c%c", (char)(p_sys->i_key[0]+'0'), + (char)(p_sys->i_key[1]+'0'), (char)(p_sys->i_key[2]+'0') ); + + int i_new_page = 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 ) + { + i_new_page = p_sys->i_key[0]*100 + p_sys->i_key[1]*10 + p_sys->i_key[2]; + p_sys->i_key[0] = p_sys->i_key[1] = p_sys->i_key[2] = '*' - '0'; + } + vlc_mutex_unlock( &p_sys->lock ); + + if( i_new_page > 0 ) + var_SetInteger( p_dec, "vbi-page", i_new_page ); + return VLC_SUCCESS; }