dvdnav.c

vlc源码

            {
                msg_Warn( p_demux, "cannot set title/chapter" );
                return VLC_EGENERIC;
            }
            p_demux->info.i_update |=
                INPUT_UPDATE_TITLE | INPUT_UPDATE_SEEKPOINT;
            p_demux->info.i_title = i;
            p_demux->info.i_seekpoint = 0;
            return VLC_SUCCESS;

        case DEMUX_SET_SEEKPOINT:
            i = (int)va_arg( args, int );
            if( p_demux->info.i_title == 0 )
            {
                int i_ret;
                /* Special case */
                switch( i )
                {
                case 0:
                    i_ret = dvdnav_menu_call( p_sys->dvdnav, DVD_MENU_Escape );
                    break;
                case 1:
                    i_ret = dvdnav_menu_call( p_sys->dvdnav, DVD_MENU_Root );
                    break;
                case 2:
                    i_ret = dvdnav_menu_call( p_sys->dvdnav, DVD_MENU_Title );
                    break;
                case 3:
                    i_ret = dvdnav_menu_call( p_sys->dvdnav, DVD_MENU_Part );
                    break;
                case 4:
                    i_ret = dvdnav_menu_call( p_sys->dvdnav,
                                              DVD_MENU_Subpicture );
                    break;
                case 5:
                    i_ret = dvdnav_menu_call( p_sys->dvdnav, DVD_MENU_Audio );
                    break;
                case 6:
                    i_ret = dvdnav_menu_call( p_sys->dvdnav, DVD_MENU_Angle );
                    break;
                default:
                    return VLC_EGENERIC;
                }

                if( i_ret != DVDNAV_STATUS_OK )
                    return VLC_EGENERIC;
            }
            else if( dvdnav_part_play( p_sys->dvdnav, p_demux->info.i_title,
                                       i + 1 ) != DVDNAV_STATUS_OK )
            {
                msg_Warn( p_demux, "cannot set title/chapter" );
                return VLC_EGENERIC;
            }
            p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
            p_demux->info.i_seekpoint = i;
            return VLC_SUCCESS;

        case DEMUX_GET_PTS_DELAY:
            pi64 = (int64_t*)va_arg( args, int64_t * );
            *pi64 = (int64_t)var_GetInteger( p_demux, "dvdnav-caching" ) *1000;
            return VLC_SUCCESS;

        case DEMUX_GET_META:
        {
            const char *title_name = NULL;

            dvdnav_get_title_string(p_sys->dvdnav, &title_name);
            if( (NULL != title_name) && ('\0' != title_name[0]) )
            {
                vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t* );
                vlc_meta_Set( p_meta, vlc_meta_Title, title_name );
                return VLC_SUCCESS;
            }
            return VLC_EGENERIC;
        }

        /* TODO implement others */
        default:
            return VLC_EGENERIC;
    }
}

static int ControlInternal( demux_t *p_demux, int i_query, ... )
{
    va_list args;
    int     i_result;

    va_start( args, i_query );
    i_result = Control( p_demux, i_query, args );
    va_end( args );

    return i_result;
}
/*****************************************************************************
 * Demux:
 *****************************************************************************/
static int Demux( demux_t *p_demux )
{
    demux_sys_t *p_sys = p_demux->p_sys;

    uint8_t buffer[DVD_VIDEO_LB_LEN];
    uint8_t *packet = buffer;
    int i_event;
    int i_len;

#if DVD_READ_CACHE
    if( dvdnav_get_next_cache_block( p_sys->dvdnav, &packet, &i_event, &i_len )
        == DVDNAV_STATUS_ERR )
#else
    if( dvdnav_get_next_block( p_sys->dvdnav, packet, &i_event, &i_len )
        == DVDNAV_STATUS_ERR )
#endif
    {
        msg_Warn( p_demux, "cannot get next block (%s)",
                  dvdnav_err_to_string( p_sys->dvdnav ) );
        if( p_demux->info.i_title == 0 )
        {
            msg_Dbg( p_demux, "jumping to first title" );
            return ControlInternal( p_demux, DEMUX_SET_TITLE, 1 ) == VLC_SUCCESS ? 1 : -1;
        }
        return -1;
    }

    switch( i_event )
    {
    case DVDNAV_BLOCK_OK:   /* mpeg block */
        DemuxBlock( p_demux, packet, i_len );
        break;

    case DVDNAV_NOP:    /* Nothing */
        msg_Dbg( p_demux, "DVDNAV_NOP" );
        break;

    case DVDNAV_STILL_FRAME:
    {
        /* We send a dummy mpeg2 end of sequence to force still frame display */
        static const uint8_t buffer[] = {
            0x00, 0x00, 0x01, 0xe0, 0x00, 0x07,
            0x80, 0x00, 0x00,
            0x00, 0x00, 0x01, 0xB7,
        };
        DemuxBlock( p_demux, buffer, sizeof(buffer) );

        /* */
        dvdnav_still_event_t *event = (dvdnav_still_event_t*)packet;
        vlc_mutex_lock( &p_sys->p_ev->lock );
        if( !p_sys->p_ev->b_still )
        {
            msg_Dbg( p_demux, "DVDNAV_STILL_FRAME" );
            msg_Dbg( p_demux, "     - length=0x%x", event->length );
            p_sys->p_ev->b_still = true;
            if( event->length == 0xff )
            {
                p_sys->p_ev->i_still_end = 0;
            }
            else
            {
                p_sys->p_ev->i_still_end = (int64_t)event->length *
                    1000000 + mdate() + p_sys->p_input->i_pts_delay;
            }
        }
        vlc_mutex_unlock( &p_sys->p_ev->lock );
        msleep( 40000 );
        break;
    }

    case DVDNAV_SPU_CLUT_CHANGE:
    {
        int i;

        msg_Dbg( p_demux, "DVDNAV_SPU_CLUT_CHANGE" );
        /* Update color lookup table (16 *uint32_t in packet) */
        memcpy( p_sys->clut, packet, 16 * sizeof( uint32_t ) );

        /* HACK to get the SPU tracks registered in the right order */
        for( i = 0; i < 0x1f; i++ )
        {
            if( dvdnav_spu_stream_to_lang( p_sys->dvdnav, i ) != 0xffff )
                ESNew( p_demux, 0xbd20 + i );
        }
        /* END HACK */
        break;
    }

    case DVDNAV_SPU_STREAM_CHANGE:
    {
        dvdnav_spu_stream_change_event_t *event =
            (dvdnav_spu_stream_change_event_t*)packet;
        int i;

        msg_Dbg( p_demux, "DVDNAV_SPU_STREAM_CHANGE" );
        msg_Dbg( p_demux, "     - physical_wide=%d",
                 event->physical_wide );
        msg_Dbg( p_demux, "     - physical_letterbox=%d",
                 event->physical_letterbox);
        msg_Dbg( p_demux, "     - physical_pan_scan=%d",
                 event->physical_pan_scan );

        ESSubtitleUpdate( p_demux );
        p_sys->b_spu_change = true;

        /* HACK to get the SPU tracks registered in the right order */
        for( i = 0; i < 0x1f; i++ )
        {
            if( dvdnav_spu_stream_to_lang( p_sys->dvdnav, i ) != 0xffff )
                ESNew( p_demux, 0xbd20 + i );
        }
        /* END HACK */
        break;
    }

    case DVDNAV_AUDIO_STREAM_CHANGE:
    {
        dvdnav_audio_stream_change_event_t *event =
            (dvdnav_audio_stream_change_event_t*)packet;
        msg_Dbg( p_demux, "DVDNAV_AUDIO_STREAM_CHANGE" );
        msg_Dbg( p_demux, "     - physical=%d", event->physical );
        /* TODO */
        break;
    }

    case DVDNAV_VTS_CHANGE:
    {
        int32_t i_title = 0;
        int32_t i_part  = 0;
        int i;

        dvdnav_vts_change_event_t *event = (dvdnav_vts_change_event_t*)packet;
        msg_Dbg( p_demux, "DVDNAV_VTS_CHANGE" );
        msg_Dbg( p_demux, "     - vtsN=%d", event->new_vtsN );
        msg_Dbg( p_demux, "     - domain=%d", event->new_domain );

        /* dvdnav_get_video_aspect / dvdnav_get_video_scale_permission */
        /* TODO check if we always have VTS and CELL */
        p_sys->i_aspect = dvdnav_get_video_aspect( p_sys->dvdnav );

        /* reset PCR */
        es_out_Control( p_demux->out, ES_OUT_RESET_PCR );

        for( i = 0; i < PS_TK_COUNT; i++ )
        {
            ps_track_t *tk = &p_sys->tk[i];
            if( tk->b_seen )
            {
                es_format_Clean( &tk->fmt );
                if( tk->es ) es_out_Del( p_demux->out, tk->es );
            }
            tk->b_seen = false;
        }

        if( dvdnav_current_title_info( p_sys->dvdnav, &i_title,
                                       &i_part ) == DVDNAV_STATUS_OK )
        {
            if( i_title >= 0 && i_title < p_sys->i_title &&
                p_demux->info.i_title != i_title )
            {
                p_demux->info.i_update |= INPUT_UPDATE_TITLE;
                p_demux->info.i_title = i_title;
            }
        }
        break;
    }

    case DVDNAV_CELL_CHANGE:
    {
        int32_t i_title = 0;
        int32_t i_part  = 0;

        dvdnav_cell_change_event_t *event =
            (dvdnav_cell_change_event_t*)packet;
        msg_Dbg( p_demux, "DVDNAV_CELL_CHANGE" );
        msg_Dbg( p_demux, "     - cellN=%d", event->cellN );
        msg_Dbg( p_demux, "     - pgN=%d", event->pgN );
        msg_Dbg( p_demux, "     - cell_length=%"PRId64, event->cell_length );
        msg_Dbg( p_demux, "     - pg_length=%"PRId64, event->pg_length );
        msg_Dbg( p_demux, "     - pgc_length=%"PRId64, event->pgc_length );
        msg_Dbg( p_demux, "     - cell_start=%"PRId64, event->cell_start );
        msg_Dbg( p_demux, "     - pg_start=%"PRId64, event->pg_start );

        /* Store the lenght in time of the current PGC */
        p_sys->i_pgc_length = event->pgc_length / 90 * 1000;

        /* FIXME is it correct or there is better way to know chapter change */
        if( dvdnav_current_title_info( p_sys->dvdnav, &i_title,
                                       &i_part ) == DVDNAV_STATUS_OK )
        {
            if( i_title >= 0 && i_title < p_sys->i_title &&
                i_part >= 1 && i_part <= p_sys->title[i_title]->i_seekpoint &&
                p_demux->info.i_seekpoint != i_part - 1 )
            {
                p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
                p_demux->info.i_seekpoint = i_part - 1;
            }
        }
        break;
    }

    case DVDNAV_NAV_PACKET:
    {
#ifdef DVDNAV_DEBUG
        msg_Dbg( p_demux, "DVDNAV_NAV_PACKET" );
#endif
        /* A lot of thing to do here :
         *  - handle packet
         *  - fetch pts (for time display)
         *  - ...
         */
        DemuxBlock( p_demux, packet, i_len );
        if( p_sys->b_spu_change )
        {
            ButtonUpdate( p_demux, false );
            p_sys->b_spu_change = false;
        }
        break;
    }

    case DVDNAV_STOP:   /* EOF */
        msg_Dbg( p_demux, "DVDNAV_STOP" );

#if DVD_READ_CACHE
        dvdnav_free_cache_block( p_sys->dvdnav, packet );
#endif
        return 0;

    case DVDNAV_HIGHLIGHT:
    {
        dvdnav_highlight_event_t *event = (dvdnav_highlight_event_t*)packet;
        msg_Dbg( p_demux, "DVDNAV_HIGHLIGHT" );
        msg_Dbg( p_demux, "     - display=%d", event->display );
        msg_Dbg( p_demux, "     - buttonN=%d", event->buttonN );
        ButtonUpdate( p_demux, false );
        break;
    }

    case DVDNAV_HOP_CHANNEL:
        msg_Dbg( p_demux, "DVDNAV_HOP_CHANNEL" );
        /* We should try to flush all our internal buffer */
        break;

    case DVDNAV_WAIT:
        msg_Dbg( p_demux, "DVDNAV_WAIT" );

        /* reset PCR */
        es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
        dvdnav_wait_skip( p_sys->dvdnav );
        break;

    default:
        msg_Warn( p_demux, "Unknown event (0x%x)", i_event );
        break;
    }

#if DVD_READ_CACHE
    dvdnav_free_cache_block( p_sys->dvdnav, packet );
#endif

    return 1;
}

/* Get a 2 char code
 * FIXME: partiallyy duplicated from src/input/es_out.c
 */
static char *DemuxGetLanguageCode( demux_t *p_demux, const char *psz_var )
{
    const iso639_lang_t *pl;
    char *psz_lang;
    char *p;

    psz_lang = var_CreateGetString( p_demux, psz_var );
    if( !psz_lang )
        return strdup(LANGUAGE_DEFAULT);

    /* XXX: we will use only the first value
     * (and ignore other ones in case of a list) */
    if( ( p = strchr( psz_lang, ',' ) ) )
        *p = '\0';

    for( pl = p_languages; pl->psz_iso639_1 != NULL; pl++ )
    {
        if( *psz_lang == '\0' )
            continue;
        if( !strcasecmp( pl->psz_eng_name, psz_lang ) ||
            !strcasecmp( pl->psz_native_name, psz_lang ) ||
            !strcasecmp( pl->psz_iso639_1, psz_lang ) ||
            !strcasecmp( pl->psz_iso639_2T, psz_lang ) ||
            !strcasecmp( pl->psz_iso639_2B, psz_lang ) )
            break;
    }

    free( psz_lang );

    if( pl->psz_iso639_1 != NULL )
        return strdup( pl->psz_iso639_1 );

    return strdup(LANGUAGE_DEFAULT);
}

static void DemuxTitles( demux_t *p_demux )
{
    demux_sys_t *p_sys = p_demux->p_sys;
    input_title_t *t;
    seekpoint_t *s;
    int32_t i_titles;
    int i;

    /* Menu */
    t = vlc_input_title_New();
    t->b_menu = true;
    t->psz_name = strdup( "DVD Menu" );

    s = vlc_seekpoint_New();
    s->psz_name = strdup( "Resume" );
    TAB_APPEND( t->i_seekpoint, t->seekpoint, s );

    s = vlc_seekpoint_New();
    s->psz_name = strdup( "Root" );
    TAB_APPEND( t->i_seekpoint, t->seekpoint, s );

    s = vlc_seekpoint_New();
    s->psz_name = strdup( "Title" );
    TAB_APPEND( t->i_seekpoint, t->seekpoint, s );

    s = vlc_seekpoint_New();
    s->psz_name = strdup( "Chapter" );
    TAB_APPEND( t->i_seekpoint, t->seekpoint, s );

    s = vlc_seekpoint_New();
    s->psz_name = strdup( "Subtitle" );
    TAB_APPEND( t->i_seekpoint, t->seekpoint, s );

    s = vlc_seekpoint_New();
    s->psz_name = strdup( "Audio" );
    TAB_APPEND( t->i_seekpoint, t->seekpoint, s );

    s = vlc_seekpoint_New();
    s->psz_name = strdup( "Angle" );
    TAB_APPEND( t->i_seekpoint, t->seekpoint, s );

    TAB_APPEND( p_sys->i_title, p_sys->title, t );

    /* Find out number of titles/chapters */
    dvdnav_get_number_of_titles( p_sys->dvdnav, &i_titles );
    for( i = 1; i <= i_titles; i++ )
    {
        int32_t i_chapters = 0;
        int j;

        dvdnav_get_number_of_parts( p_sys->dvdnav, i, &i_chapters );

        t = vlc_input_title_New();
        for( j = 0; j < __MAX( i_chapters, 1 ); j++ )
        {
            s = vlc_seekpoint_New();
            TAB_APPEND( t->i_seekpoint, t->seekpoint, s );
        }

        TAB_APPEND( p_sys->i_title, p_sys->title, t );
    }
}

/*****************************************************************************
 * Update functions:
 *****************************************************************************/
static void ButtonUpdate( demux_t *p_demux, bool b_mode )
{
    demux_sys_t *p_sys = p_demux->p_sys;
    vlc_value_t val;
    int32_t i_title, i_part;

    dvdnav_current_title_info( p_sys->dvdnav, &i_title, &i_part );

    if( var_Get( p_sys->p_input, "highlight-mutex", &val ) == VLC_SUCCESS )
    {
        vlc_mutex_t *p_mutex = val.p_address;
        dvdnav_highlight_area_t hl;
        int32_t i_button;
        bool    b_button_ok;

        if( dvdnav_get_current_highlight( p_sys->dvdnav, &i_button )
            != DVDNAV_STATUS_OK )
        {
            msg_Err( p_demux, "dvdnav_get_current_highlight failed" );
            return;
        }

        b_button_ok = false;
        if( i_button > 0 && i_title ==  0 )
        {
            pci_t *pci = dvdnav_get_current_nav_pci( p_sys->dvdnav );

            b_button_ok = dvdnav_get_highlight_area( pci, i_button, b_mode, &hl ) == DVDNAV_STATUS_OK;
        }