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234 lines
7.4 KiB
234 lines
7.4 KiB
/*****************************************************************************
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* setid.c: set ID/lang on a stream
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*****************************************************************************
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* Copyright © 2009-2011 VLC authors and VideoLAN
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*
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* Authors: Christophe Massiot <massiot@via.ecp.fr>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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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 <stdlib.h>
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#include <string.h>
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_sout.h>
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define ID_TEXT N_("Elementary Stream ID")
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#define ID_LONGTEXT N_( \
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"Specify an identifier integer for this elementary stream" )
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#define NEWID_TEXT N_("New ES ID")
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#define NEWID_LONGTEXT N_( \
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"Specify an new identifier integer for this elementary stream" )
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#define LANG_TEXT N_("Language")
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#define LANG_LONGTEXT N_( \
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"Specify an ISO-639 code (three characters) for this elementary stream" )
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static int OpenId ( vlc_object_t * );
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static int OpenLang ( vlc_object_t * );
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static void Close ( vlc_object_t * );
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#define SOUT_CFG_PREFIX_ID "sout-setid-"
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#define SOUT_CFG_PREFIX_LANG "sout-setlang-"
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vlc_module_begin()
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set_shortname( N_("Set ID"))
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set_section( N_("Set ES id"), NULL )
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set_description( N_("Change the id of an elementary stream"))
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set_capability( "sout stream", 50 )
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add_shortcut( "setid" )
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set_category( CAT_SOUT )
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set_subcategory( SUBCAT_SOUT_STREAM )
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set_callbacks( OpenId, Close )
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add_integer( SOUT_CFG_PREFIX_ID "id", 0, ID_TEXT, ID_LONGTEXT, false )
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add_integer( SOUT_CFG_PREFIX_ID "new-id", 0, NEWID_TEXT, NEWID_LONGTEXT,
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false )
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add_submodule ()
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set_section( N_("Set ES Lang"), NULL )
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set_shortname( N_("Set Lang"))
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set_description( N_("Change the language of an elementary stream"))
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set_capability( "sout stream", 50 )
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add_shortcut( "setlang" );
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set_callbacks( OpenLang, Close )
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add_integer( SOUT_CFG_PREFIX_LANG "id", 0, ID_TEXT, ID_LONGTEXT, false )
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add_string( SOUT_CFG_PREFIX_LANG "lang", "eng", LANG_TEXT, LANG_LONGTEXT,
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false );
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vlc_module_end()
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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static const char *ppsz_sout_options_id[] = {
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"id", "new-id", NULL
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};
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static const char *ppsz_sout_options_lang[] = {
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"id", "lang", NULL
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};
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static sout_stream_id_sys_t *AddId ( sout_stream_t *, const es_format_t * );
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static sout_stream_id_sys_t *AddLang( sout_stream_t *, const es_format_t * );
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static void Del ( sout_stream_t *, sout_stream_id_sys_t * );
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static int Send ( sout_stream_t *, sout_stream_id_sys_t *, block_t * );
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struct sout_stream_sys_t
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{
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int i_id;
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int i_new_id;
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char *psz_language;
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};
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/*****************************************************************************
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* Open:
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*****************************************************************************/
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static int OpenCommon( vlc_object_t *p_this )
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{
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sout_stream_t *p_stream = (sout_stream_t*)p_this;
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sout_stream_sys_t *p_sys;
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if( !p_stream->p_next )
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{
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msg_Err( p_stream, "cannot create chain" );
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return VLC_EGENERIC;
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}
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p_sys = malloc( sizeof( sout_stream_sys_t ) );
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if( unlikely( !p_sys ) )
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return VLC_ENOMEM;
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p_stream->pf_del = Del;
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p_stream->pf_send = Send;
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p_stream->p_sys = p_sys;
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return VLC_SUCCESS;
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}
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static int OpenId( vlc_object_t *p_this )
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{
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int i_ret = OpenCommon( p_this );
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if( i_ret != VLC_SUCCESS )
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return i_ret;
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sout_stream_t *p_stream = (sout_stream_t*)p_this;
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config_ChainParse( p_stream, SOUT_CFG_PREFIX_ID, ppsz_sout_options_id,
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p_stream->p_cfg );
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p_stream->p_sys->i_id = var_GetInteger( p_stream, SOUT_CFG_PREFIX_ID "id" );
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p_stream->p_sys->i_new_id = var_GetInteger( p_stream, SOUT_CFG_PREFIX_ID "new-id" );
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p_stream->p_sys->psz_language = NULL;
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p_stream->pf_add = AddId;
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return VLC_SUCCESS;
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}
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static int OpenLang( vlc_object_t *p_this )
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{
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int i_ret = OpenCommon( p_this );
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if( i_ret != VLC_SUCCESS )
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return i_ret;
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sout_stream_t *p_stream = (sout_stream_t*)p_this;
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config_ChainParse( p_stream, SOUT_CFG_PREFIX_LANG, ppsz_sout_options_lang,
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p_stream->p_cfg );
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p_stream->p_sys->i_id = var_GetInteger( p_stream, SOUT_CFG_PREFIX_LANG "id" );
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p_stream->p_sys->i_new_id = -1;
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p_stream->p_sys->psz_language = var_GetString( p_stream, SOUT_CFG_PREFIX_LANG "lang" );
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p_stream->pf_add = AddLang;
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* Close:
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*****************************************************************************/
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static void Close( vlc_object_t * p_this )
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{
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sout_stream_t *p_stream = (sout_stream_t*)p_this;
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sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
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free( p_sys->psz_language );
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free( p_sys );
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}
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static sout_stream_id_sys_t * AddId( sout_stream_t *p_stream, const es_format_t *p_fmt )
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{
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sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
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es_format_t fmt;
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if( p_fmt->i_id == p_sys->i_id )
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{
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msg_Dbg( p_stream, "turning ID %d to %d", p_sys->i_id,
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p_sys->i_new_id );
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fmt = *p_fmt;
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fmt.i_id = p_sys->i_new_id;
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p_fmt = &fmt;
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}
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return sout_StreamIdAdd( p_stream->p_next, p_fmt );
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}
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static sout_stream_id_sys_t * AddLang( sout_stream_t *p_stream, const es_format_t *p_fmt )
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{
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sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
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es_format_t fmt;
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if ( p_fmt->i_id == p_sys->i_id )
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{
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msg_Dbg( p_stream, "turning language %s of ID %d to %s",
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p_fmt->psz_language ? p_fmt->psz_language : "unk",
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p_sys->i_id, p_sys->psz_language );
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fmt = *p_fmt;
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fmt.psz_language = p_sys->psz_language;
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p_fmt = &fmt;
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}
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return sout_StreamIdAdd( p_stream->p_next, p_fmt );
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}
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static void Del( sout_stream_t *p_stream, sout_stream_id_sys_t *id )
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{
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p_stream->p_next->pf_del( p_stream->p_next, id );
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}
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static int Send( sout_stream_t *p_stream, sout_stream_id_sys_t *id,
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block_t *p_buffer )
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{
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return p_stream->p_next->pf_send( p_stream->p_next, id, p_buffer );
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}
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