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/*****************************************************************************
* ddummy.c: dummy decoder plugin for vlc.
*****************************************************************************
* Copyright (C) 2002 VLC authors and VideoLAN
* $Id$
*
* Authors: Samuel Hocevar <sam@zoy.org>
*
* 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 <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_codec.h>
#include <vlc_fs.h>
#define SAVE_TEXT N_("Save raw codec data")
#define SAVE_LONGTEXT N_( \
"Save the raw codec data if you have selected/forced the dummy " \
"decoder in the main options." )
static int OpenDecoder( vlc_object_t * );
static int OpenDecoderDump( vlc_object_t * );
static void CloseDecoder( vlc_object_t * );
vlc_module_begin ()
set_shortname( N_("Dummy") )
set_description( N_("Dummy decoder") )
set_capability( "spu decoder", 0 )
set_callbacks( OpenDecoder, CloseDecoder )
set_category( CAT_INPUT )
set_subcategory( SUBCAT_INPUT_SCODEC )
add_bool( "dummy-save-es", false, SAVE_TEXT, SAVE_LONGTEXT, true )
add_shortcut( "dummy" )
add_submodule()
add_shortcut( "dummy" )
set_capability( "video decoder", 0 )
set_callbacks( OpenDecoder, CloseDecoder )
add_submodule()
add_shortcut( "dummy" )
set_capability( "audio decoder", 0 )
set_callbacks( OpenDecoder, CloseDecoder )
add_submodule ()
set_section( N_( "Dump decoder" ), NULL )
set_description( N_("Dump decoder") )
set_capability( "spu decoder", -1 )
set_callbacks( OpenDecoderDump, CloseDecoder )
add_shortcut( "dump" )
add_submodule()
add_shortcut( "dump")
set_capability( "video decoder", 0 )
set_callbacks( OpenDecoderDump, CloseDecoder )
add_submodule()
add_shortcut( "dump")
set_capability( "audio decoder", 0 )
set_callbacks( OpenDecoderDump, CloseDecoder )
vlc_module_end ()
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int DecodeBlock( decoder_t *p_dec, block_t *p_block );
/*****************************************************************************
* OpenDecoder: Open the decoder
*****************************************************************************/
static int OpenDecoderCommon( vlc_object_t *p_this, bool b_force_dump )
{
decoder_t *p_dec = (decoder_t*)p_this;
char psz_file[10 + 3 * sizeof (p_dec)];
snprintf( psz_file, sizeof( psz_file), "stream.%p", (void *)p_dec );
if( !b_force_dump )
b_force_dump = var_InheritBool( p_dec, "dummy-save-es" );
if( b_force_dump )
{
FILE *stream = vlc_fopen( psz_file, "wb" );
if( stream == NULL )
{
msg_Err( p_dec, "cannot create `%s'", psz_file );
return VLC_EGENERIC;
}
msg_Dbg( p_dec, "dumping stream to file `%s'", psz_file );
p_dec->p_sys = (void *)stream;
}
else
p_dec->p_sys = NULL;
/* Set callbacks */
p_dec->pf_decode = DecodeBlock;
es_format_Copy( &p_dec->fmt_out, &p_dec->fmt_in );
return VLC_SUCCESS;
}
static int OpenDecoder( vlc_object_t *p_this )
{
return OpenDecoderCommon( p_this, false );
}
static int OpenDecoderDump( vlc_object_t *p_this )
{
return OpenDecoderCommon( p_this, true );
}
/****************************************************************************
* RunDecoder: the whole thing
****************************************************************************
* This function must be fed with ogg packets.
****************************************************************************/
static int DecodeBlock( decoder_t *p_dec, block_t *p_block )
{
FILE *stream = (void *)p_dec->p_sys;
if( !p_block ) return VLCDEC_SUCCESS;
if( stream != NULL
&& p_block->i_buffer > 0
&& !(p_block->i_flags & (BLOCK_FLAG_CORRUPTED)) )
{
fwrite( p_block->p_buffer, 1, p_block->i_buffer, stream );
msg_Dbg( p_dec, "dumped %zu bytes", p_block->i_buffer );
}
block_Release( p_block );
return VLCDEC_SUCCESS;
}
/*****************************************************************************
* CloseDecoder: decoder destruction
*****************************************************************************/
static void CloseDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *)p_this;
FILE *stream = (void *)p_dec->p_sys;
if( stream != NULL )
fclose( stream );
}
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