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vlc/modules/packetizer/copy.c
Clément Stenac a90a19a6b0 Improvements to preferences 
* Each module can declare a "human-readable short name" with set_name
* Modules are sorted by category (set_category, set_subcategory).
  Modules configs can be separated by set_section()
* Separated audio-filter and audio-visual
* Separated extraintf and control
* New command and widget : add_module_list() for comma-separated modules
* Vfilters now use "," as separator
2004-12-11 14:45:46 +00:00

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/*****************************************************************************
* copy.c
*****************************************************************************
* Copyright (C) 2001, 2002 VideoLAN
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
* Eric Petit <titer@videolan.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <vlc/vlc.h>
#include <vlc/decoder.h>
#include <vlc/input.h>
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
vlc_module_begin();
set_category( CAT_SOUT );
set_subcategory( SUBCAT_SOUT_PACKETIZER );
set_description( _("Copy packetizer") );
set_capability( "packetizer", 1 );
set_callbacks( Open, Close );
vlc_module_end();
/*****************************************************************************
* Local prototypes
*****************************************************************************/
struct decoder_sys_t
{
block_t *p_block;
};
static block_t *Packetize ( decoder_t *, block_t ** );
static block_t *PacketizeSub( decoder_t *, block_t ** );
/*****************************************************************************
* Open: probe the packetizer and return score
*****************************************************************************
* Tries to launch a decoder and return score so that the interface is able
* to choose.
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
if( p_dec->fmt_in.i_cat != AUDIO_ES &&
p_dec->fmt_in.i_cat != VIDEO_ES &&
p_dec->fmt_in.i_cat != SPU_ES )
{
msg_Err( p_dec, "invalid ES type" );
return VLC_EGENERIC;
}
if( p_dec->fmt_in.i_cat == SPU_ES )
p_dec->pf_packetize = PacketizeSub;
else
p_dec->pf_packetize = Packetize;
/* Create the output format */
es_format_Copy( &p_dec->fmt_out, &p_dec->fmt_in );
/* Fix the value of the fourcc */
switch( p_dec->fmt_in.i_codec )
{
/* video */
case VLC_FOURCC( 'm', '4', 's', '2'):
case VLC_FOURCC( 'M', '4', 'S', '2'):
case VLC_FOURCC( 'm', 'p', '4', 's'):
case VLC_FOURCC( 'M', 'P', '4', 'S'):
case VLC_FOURCC( 'D', 'I', 'V', 'X'):
case VLC_FOURCC( 'd', 'i', 'v', 'x'):
case VLC_FOURCC( 'X', 'V', 'I', 'D'):
case VLC_FOURCC( 'X', 'v', 'i', 'D'):
case VLC_FOURCC( 'x', 'v', 'i', 'd'):
case VLC_FOURCC( 'D', 'X', '5', '0'):
case VLC_FOURCC( 0x04, 0, 0, 0):
case VLC_FOURCC( '3', 'I', 'V', '2'):
p_dec->fmt_out.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v');
break;
case VLC_FOURCC( 'm', 'p', 'g', '1' ):
case VLC_FOURCC( 'm', 'p', 'g', '2' ):
case VLC_FOURCC( 'm', 'p', '1', 'v' ):
case VLC_FOURCC( 'm', 'p', '2', 'v' ):
p_dec->fmt_out.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
break;
case VLC_FOURCC( 'd', 'i', 'v', '1' ):
case VLC_FOURCC( 'M', 'P', 'G', '4' ):
case VLC_FOURCC( 'm', 'p', 'g', '4' ):
p_dec->fmt_out.i_codec = VLC_FOURCC( 'D', 'I', 'V', '1' );
break;
case VLC_FOURCC( 'd', 'i', 'v', '2' ):
case VLC_FOURCC( 'M', 'P', '4', '2' ):
case VLC_FOURCC( 'm', 'p', '4', '2' ):
p_dec->fmt_out.i_codec = VLC_FOURCC( 'D', 'I', 'V', '2' );
break;
case VLC_FOURCC( 'd', 'i', 'v', '3' ):
case VLC_FOURCC( 'd', 'i', 'v', '4' ):
case VLC_FOURCC( 'D', 'I', 'V', '4' ):
case VLC_FOURCC( 'd', 'i', 'v', '5' ):
case VLC_FOURCC( 'D', 'I', 'V', '5' ):
case VLC_FOURCC( 'd', 'i', 'v', '6' ):
case VLC_FOURCC( 'D', 'I', 'V', '6' ):
case VLC_FOURCC( 'M', 'P', '4', '3' ):
case VLC_FOURCC( 'm', 'p', '4', '3' ):
case VLC_FOURCC( 'm', 'p', 'g', '3' ):
case VLC_FOURCC( 'M', 'P', 'G', '3' ):
case VLC_FOURCC( 'A', 'P', '4', '1' ):
p_dec->fmt_out.i_codec = VLC_FOURCC( 'D', 'I', 'V', '3' );
break;
case VLC_FOURCC( 'h', '2', '6', '3' ):
case VLC_FOURCC( 'U', '2', '6', '3' ):
case VLC_FOURCC( 'u', '2', '6', '3' ):
p_dec->fmt_out.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
break;
case VLC_FOURCC( 'i', '2', '6', '3' ):
p_dec->fmt_out.i_codec = VLC_FOURCC( 'I', '2', '6', '3' );
break;
case VLC_FOURCC( 'm', 'j', 'p', 'g' ):
case VLC_FOURCC( 'm', 'j', 'p', 'a' ):
case VLC_FOURCC( 'j', 'p', 'e', 'g' ):
case VLC_FOURCC( 'J', 'P', 'E', 'G' ):
case VLC_FOURCC( 'J', 'F', 'I', 'F' ):
p_dec->fmt_out.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
break;
case VLC_FOURCC( 'd', 'v', 's', 'd' ):
case VLC_FOURCC( 'D', 'V', 'S', 'D' ):
case VLC_FOURCC( 'd', 'v', 'h', 'd' ):
p_dec->fmt_out.i_codec = VLC_FOURCC( 'd', 'v', 's', 'l' );
break;
/* audio */
case VLC_FOURCC( 'a', 'r', 'a', 'w' ):
switch( ( p_dec->fmt_in.audio.i_bitspersample + 7 ) / 8 )
{
case 1:
p_dec->fmt_out.i_codec = VLC_FOURCC('u','8',' ',' ');
break;
case 2:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','1','6','l');
break;
case 3:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','2','4','l');
break;
case 4:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','3','2','l');
break;
default:
msg_Err( p_dec, "unknown raw audio sample size" );
return VLC_EGENERIC;
}
break;
case VLC_FOURCC( 't', 'w', 'o', 's' ):
switch( ( p_dec->fmt_in.audio.i_bitspersample + 7 ) / 8 )
{
case 1:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','8',' ',' ');
break;
case 2:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','1','6','b');
break;
case 3:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','2','4','b');
break;
case 4:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','3','2','b');
break;
default:
msg_Err( p_dec, "unknown raw audio sample size" );
return VLC_EGENERIC;
}
break;
case VLC_FOURCC( 's', 'o', 'w', 't' ):
switch( ( p_dec->fmt_in.audio.i_bitspersample + 7 ) / 8 )
{
case 1:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','8',' ',' ');
break;
case 2:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','1','6','l');
break;
case 3:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','2','4','l');
break;
case 4:
p_dec->fmt_out.i_codec = VLC_FOURCC('s','3','2','l');
break;
default:
msg_Err( p_dec, "unknown raw audio sample size" );
return VLC_EGENERIC;
}
break;
}
p_dec->p_sys = p_sys = malloc( sizeof( block_t ) );
p_sys->p_block = NULL;
return VLC_SUCCESS;
}
/*****************************************************************************
* Close:
*****************************************************************************/
static void Close( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
if( p_dec->p_sys->p_block )
{
block_ChainRelease( p_dec->p_sys->p_block );
}
free( p_dec->p_sys );
}
/*****************************************************************************
* Packetize: packetize an unit (here copy a complete block )
*****************************************************************************/
static block_t *Packetize ( decoder_t *p_dec, block_t **pp_block )
{
block_t *p_block;
block_t *p_ret = p_dec->p_sys->p_block;
if( pp_block == NULL || *pp_block == NULL )
{
return NULL;
}
p_block = *pp_block;
*pp_block = NULL;
if( p_block->i_dts <= 0 )
{
p_block->i_dts = p_block->i_pts;
}
if( p_block->i_dts <= 0 )
{
msg_Dbg( p_dec, "need dts > 0" );
block_Release( p_block );
return NULL;
}
if( p_ret != NULL && p_block->i_pts > p_ret->i_pts )
{
p_ret->i_length = p_block->i_pts - p_ret->i_pts;
}
p_dec->p_sys->p_block = p_block;
return p_ret;
}
/*****************************************************************************
* PacketizeSub: packetize an unit (here copy a complete block )
*****************************************************************************/
static block_t *PacketizeSub( decoder_t *p_dec, block_t **pp_block )
{
block_t *p_block;
if( pp_block == NULL || *pp_block == NULL )
{
return NULL;
}
p_block = *pp_block;
*pp_block = NULL;
if( p_block->i_dts <= 0 )
{
p_block->i_dts = p_block->i_pts;
}
if( p_block->i_dts <= 0 )
{
msg_Dbg( p_dec, "need dts > 0" );
block_Release( p_block );
return NULL;
}
return p_block;
}
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