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105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/*****************************************************************************
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* t140.c : trivial T.140 text encoder
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*****************************************************************************
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* Copyright © 2007 Rémi Denis-Courmont
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* $Id$
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_vout.h>
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#include <vlc_codec.h>
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#include <vlc_sout.h>
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static int Open ( vlc_object_t * );
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static void Close( vlc_object_t * );
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vlc_module_begin ()
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add_submodule ()
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set_description( N_("T.140 text encoder") )
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set_capability( "encoder", 100 )
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set_callbacks( Open, Close )
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vlc_module_end ()
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static block_t *Encode ( encoder_t *, subpicture_t * );
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static int Open( vlc_object_t *p_this )
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{
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encoder_t *p_enc = (encoder_t *)p_this;
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switch( p_enc->fmt_out.i_codec )
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{
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case VLC_FOURCC('s','u','b','t'):
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if( ( p_enc->fmt_out.subs.psz_encoding != NULL )
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&& strcasecmp( p_enc->fmt_out.subs.psz_encoding, "utf8" )
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&& strcasecmp( p_enc->fmt_out.subs.psz_encoding, "UTF-8" ) )
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{
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msg_Err( p_this, "Only UTF-8 encoding supported" );
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return VLC_EGENERIC;
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}
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case VLC_FOURCC('t','1','4','0'):
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break;
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default:
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if( !p_enc->b_force )
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return VLC_EGENERIC;
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p_enc->fmt_out.i_codec = VLC_FOURCC('t','1','4','0');
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}
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p_enc->p_sys = NULL;
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p_enc->pf_encode_sub = Encode;
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return VLC_SUCCESS;
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}
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static void Close( vlc_object_t *p_this )
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{
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(void)p_this;
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}
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static block_t *Encode( encoder_t *p_enc, subpicture_t *p_spu )
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{
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subpicture_region_t *p_region;
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block_t *p_block;
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size_t len;
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if( p_spu == NULL )
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return NULL;
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p_region = p_spu->p_region;
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if( ( p_region == NULL )
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|| ( p_region->fmt.i_chroma != VLC_FOURCC('T','E','X','T') )
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|| ( p_region->psz_text == NULL ) )
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return NULL;
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/* This should already be UTF-8 encoded, so not much effort... */
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len = strlen( p_region->psz_text );
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p_block = block_New( p_enc, len );
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memcpy( p_block->p_buffer, p_region->psz_text, len );
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return p_block;
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}
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