Commit 26082382 authored by Jean-Baptiste Kempf's avatar Jean-Baptiste Kempf

Remove langfromtelx

parent 73cb897c
......@@ -102,6 +102,9 @@ Logging
messages in syslog. With --syslog, errors and warnings will be sent only.
* New Android module for logging
Misc
* remove langfromtelx
Changes between 2.1.x and 2.2.0:
--------------------------------
......
......@@ -17,7 +17,6 @@ libstream_out_autodel_plugin_la_SOURCES = stream_out/autodel.c
libstream_out_record_plugin_la_SOURCES = stream_out/record.c
libstream_out_smem_plugin_la_SOURCES = stream_out/smem.c
libstream_out_setid_plugin_la_SOURCES = stream_out/setid.c
#libstream_out_langfromtelx_plugin_la_SOURCES = stream_out/langfromtelx.c
libstream_out_transcode_plugin_la_SOURCES = \
stream_out/transcode/transcode.c stream_out/transcode/transcode.h \
stream_out/transcode/osd.c stream_out/transcode/spu.c \
......@@ -43,7 +42,6 @@ sout_LTLIBRARIES = \
libstream_out_smem_plugin.la \
libstream_out_setid_plugin.la \
libstream_out_transcode_plugin.la
# libstream_out_langfromtelx_plugin.la
# RTP plugin
sout_LTLIBRARIES += libstream_out_rtp_plugin.la
......
/*****************************************************************************
* langfromtelx.c: dynamic language setting from telx
*****************************************************************************
* Copyright © 2009-2011 VLC authors and VideoLAN
* $Id$
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
* 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 Lesser General Public License for more details.
*
* 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.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <ctype.h>
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_sout.h>
#include <vlc_block.h>
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define ID_TEXT N_("Elementary Stream ID")
#define ID_LONGTEXT N_( \
"Specify an identifier integer for this elementary stream to change" )
#define MAGAZINE_TEXT N_("Magazine")
#define MAGAZINE_LONGTEXT N_( \
"Specify the magazine containing the language page" )
#define PAGE_TEXT N_("Page")
#define PAGE_LONGTEXT N_( \
"Specify the page containing the language" )
#define ROW_TEXT N_("Row")
#define ROW_LONGTEXT N_( \
"Specify the row containing the language" )
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
#define SOUT_CFG_PREFIX "sout-langfromtelx-"
vlc_module_begin()
set_shortname( N_("Lang From Telx"))
set_description( N_("Dynamic language setting from teletext"))
set_capability( "sout stream", 50 )
add_shortcut( "langfromtelx" )
set_category( CAT_SOUT )
set_subcategory( SUBCAT_SOUT_STREAM )
set_callbacks( Open, Close )
add_integer( SOUT_CFG_PREFIX "id", 0, ID_TEXT, ID_LONGTEXT,
false )
add_integer( SOUT_CFG_PREFIX "magazine", 7, MAGAZINE_TEXT,
MAGAZINE_LONGTEXT, false )
add_integer( SOUT_CFG_PREFIX "page", 0x99, PAGE_TEXT, PAGE_LONGTEXT,
false )
add_integer( SOUT_CFG_PREFIX "row", 1, ROW_TEXT, ROW_LONGTEXT,
false )
vlc_module_end();
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static const char *ppsz_sout_options[] = {
"id", "magazine", "page", "row", NULL
};
static sout_stream_id_sys_t *Add ( sout_stream_t *, es_format_t * );
static void Del ( sout_stream_t *, sout_stream_id_sys_t * );
static int Send ( sout_stream_t *, sout_stream_id_sys_t *, block_t * );
struct sout_stream_sys_t
{
int i_id, i_magazine, i_page, i_row;
char *psz_language, *psz_old_language;
sout_stream_id_sys_t *p_id, *p_telx;
int i_current_page;
};
/*****************************************************************************
* Open:
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
sout_stream_t *p_stream = (sout_stream_t*)p_this;
sout_stream_sys_t *p_sys;
if( !p_stream->p_next )
{
msg_Err( p_stream, "cannot create chain" );
return VLC_EGENERIC;
}
p_sys = malloc( sizeof( sout_stream_sys_t ) );
if( unlikely( !p_sys ) )
return VLC_ENOMEM;
config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
p_stream->p_cfg );
p_sys->i_id = var_GetInteger( p_stream, SOUT_CFG_PREFIX "id" );
p_sys->i_magazine = var_GetInteger( p_stream, SOUT_CFG_PREFIX "magazine" );
p_sys->i_page = var_GetInteger( p_stream, SOUT_CFG_PREFIX "page" );
p_sys->i_row = var_GetInteger( p_stream, SOUT_CFG_PREFIX "row" );
p_stream->pf_add = Add;
p_stream->pf_del = Del;
p_stream->pf_send = Send;
p_stream->p_sys = p_sys;
return VLC_SUCCESS;
}
/*****************************************************************************
* Close:
*****************************************************************************/
static void Close( vlc_object_t * p_this )
{
sout_stream_t *p_stream = (sout_stream_t*)p_this;
sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
free( p_sys->psz_old_language );
free( p_sys );
}
static sout_stream_id_sys_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
{
sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
sout_stream_id_sys_t *id;
es_format_t fmt;
if ( p_fmt->i_id == p_sys->i_id )
{
fmt = *p_fmt;
p_sys->psz_old_language = p_fmt->psz_language;
msg_Dbg( p_stream,
"changing language of ID %d (magazine %d page %x row %d)",
p_sys->i_id, p_sys->i_magazine, p_sys->i_page, p_sys->i_row );
p_sys->psz_language = p_fmt->psz_language = malloc(4);
if ( p_sys->psz_old_language != NULL )
strncpy( p_fmt->psz_language, p_sys->psz_old_language, 3 );
else
strcpy( p_fmt->psz_language, "unk" );
p_fmt->psz_language[3] = '\0';
}
id = sout_StreamIdAdd( p_stream->p_next, p_fmt );
if( p_fmt->i_id == p_sys->i_id )
p_sys->p_id = id;
if( p_fmt->i_codec == VLC_CODEC_TELETEXT )
p_sys->p_telx = id;
return id;
}
static void Del( sout_stream_t *p_stream, sout_stream_id_sys_t *id )
{
sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
if ( id == p_sys->p_id ) p_sys->p_id = NULL;
if ( id == p_sys->p_telx ) p_sys->p_telx = NULL;
p_stream->p_next->pf_del( p_stream->p_next, id );
}
static void SetLanguage( sout_stream_t *p_stream, char *psz_language )
{
sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
if ( strncmp( p_sys->psz_language, psz_language, 3 ) )
msg_Dbg( p_stream, "changing language to %s", psz_language );
strncpy( p_sys->psz_language, (const char *)psz_language, 3 );
}
/*****************************************************************************
* Teletext stuff
*****************************************************************************/
static uint8_t bytereverse( int n )
{
n = (((n >> 1) & 0x55) | ((n << 1) & 0xaa));
n = (((n >> 2) & 0x33) | ((n << 2) & 0xcc));
n = (((n >> 4) & 0x0f) | ((n << 4) & 0xf0));
return n;
}
static int hamming_8_4( int a )
{
switch (a) {
case 0xA8:
return 0;
case 0x0B:
return 1;
case 0x26:
return 2;
case 0x85:
return 3;
case 0x92:
return 4;
case 0x31:
return 5;
case 0x1C:
return 6;
case 0xBF:
return 7;
case 0x40:
return 8;
case 0xE3:
return 9;
case 0xCE:
return 10;
case 0x6D:
return 11;
case 0x7A:
return 12;
case 0xD9:
return 13;
case 0xF4:
return 14;
case 0x57:
return 15;
default:
return -1; // decoding error , not yet corrected
}
}
static void decode_string( char *res, uint8_t *packet, int len )
{
for ( int i = 0; i < len; i++ )
res[i] = bytereverse( packet[i] ) & 0x7f;
res[len] = '\0';
}
static void HandleTelx( sout_stream_t *p_stream, block_t *p_block )
{
sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
int len = p_block->i_buffer;
for ( int offset = 1; offset + 46 <= len; offset += 46 )
{
uint8_t * packet = (uint8_t *) p_block->p_buffer+offset;
if ( packet[0] == 0xFF )
continue;
int mpag = (hamming_8_4( packet[4] ) << 4) | hamming_8_4( packet[5] );
int i_row, i_magazine;
if ( mpag < 0 )
{
/* decode error */
continue;
}
i_row = 0xFF & bytereverse(mpag);
i_magazine = (7 & i_row) == 0 ? 8 : (7 & i_row);
i_row >>= 3;
if ( i_magazine != p_sys->i_magazine )
continue;
if ( i_row == 0 )
{
/* row 0 : flags and header line */
p_sys->i_current_page =
(0xF0 & bytereverse( hamming_8_4(packet[7]) )) |
(0xF & (bytereverse( hamming_8_4(packet[6]) ) >> 4) );
}
if ( p_sys->i_current_page != p_sys->i_page ) continue;
if ( i_row == p_sys->i_row )
{
/* row 1-23 : normal lines */
char psz_line[41];
decode_string( psz_line, packet + 6, 40 );
psz_line[0] = tolower(psz_line[0]);
psz_line[1] = tolower(psz_line[1]);
psz_line[2] = tolower(psz_line[2]);
psz_line[3] = '\0';
SetLanguage( p_stream, psz_line );
}
}
}
/*****************************************************************************
* Send:
*****************************************************************************/
static int Send( sout_stream_t *p_stream, sout_stream_id_sys_t *id,
block_t *p_buffer )
{
sout_stream_sys_t *p_sys = (sout_stream_sys_t *)p_stream->p_sys;
if ( id == p_sys->p_telx )
HandleTelx( p_stream, p_buffer );
return p_stream->p_next->pf_send( p_stream->p_next, id, p_buffer );
}
......@@ -1035,7 +1035,6 @@ modules/stream_out/dummy.c
modules/stream_out/duplicate.c
modules/stream_out/es.c
modules/stream_out/gather.c
modules/stream_out/langfromtelx.c
modules/stream_out/mosaic_bridge.c
modules/stream_out/raop.c
modules/stream_out/record.c
......
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