mirror of
https://code.videolan.org/videolan/vlc
synced 2024-10-07 03:56:28 +02:00
321 lines
11 KiB
C
321 lines
11 KiB
C
/*****************************************************************************
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* copy.c
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*****************************************************************************
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* Copyright (C) 2001, 2002, 2006 the VideoLAN team
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* $Id$
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*
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* Authors: Laurent Aimar <fenrir@via.ecp.fr>
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* Eric Petit <titer@videolan.org>
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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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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <vlc/vlc.h>
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#include <vlc_codec.h>
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#include <vlc_block.h>
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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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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set_category( CAT_SOUT );
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set_subcategory( SUBCAT_SOUT_PACKETIZER );
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set_description( _("Copy packetizer") );
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set_capability( "packetizer", 1 );
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set_callbacks( Open, Close );
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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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struct decoder_sys_t
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{
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block_t *p_block;
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};
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static block_t *Packetize ( decoder_t *, block_t ** );
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static block_t *PacketizeSub( decoder_t *, block_t ** );
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/*****************************************************************************
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* Open: probe the packetizer and return score
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*****************************************************************************
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* Tries to launch a decoder and return score so that the interface is able
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* to choose.
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*****************************************************************************/
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static int Open( vlc_object_t *p_this )
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{
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decoder_t *p_dec = (decoder_t*)p_this;
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decoder_sys_t *p_sys;
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if( p_dec->fmt_in.i_cat != AUDIO_ES &&
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p_dec->fmt_in.i_cat != VIDEO_ES &&
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p_dec->fmt_in.i_cat != SPU_ES )
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{
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msg_Err( p_dec, "invalid ES type" );
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return VLC_EGENERIC;
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}
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if( p_dec->fmt_in.i_cat == SPU_ES )
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p_dec->pf_packetize = PacketizeSub;
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else
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p_dec->pf_packetize = Packetize;
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/* Create the output format */
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es_format_Copy( &p_dec->fmt_out, &p_dec->fmt_in );
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/* Fix the value of the fourcc */
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switch( p_dec->fmt_in.i_codec )
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{
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/* video */
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case VLC_FOURCC( 'm', '4', 's', '2'):
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case VLC_FOURCC( 'M', '4', 'S', '2'):
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case VLC_FOURCC( 'm', 'p', '4', 's'):
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case VLC_FOURCC( 'M', 'P', '4', 'S'):
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case VLC_FOURCC( 'D', 'I', 'V', 'X'):
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case VLC_FOURCC( 'd', 'i', 'v', 'x'):
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case VLC_FOURCC( 'X', 'V', 'I', 'D'):
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case VLC_FOURCC( 'X', 'v', 'i', 'D'):
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case VLC_FOURCC( 'x', 'v', 'i', 'd'):
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case VLC_FOURCC( 'D', 'X', '5', '0'):
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case VLC_FOURCC( 0x04, 0, 0, 0):
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case VLC_FOURCC( '3', 'I', 'V', '2'):
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p_dec->fmt_out.i_codec = VLC_FOURCC( 'm', 'p', '4', 'v');
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break;
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case VLC_FOURCC( 'm', 'p', 'g', '1' ):
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case VLC_FOURCC( 'm', 'p', 'g', '2' ):
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case VLC_FOURCC( 'm', 'p', '1', 'v' ):
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case VLC_FOURCC( 'm', 'p', '2', 'v' ):
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p_dec->fmt_out.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'v' );
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break;
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case VLC_FOURCC( 'd', 'i', 'v', '1' ):
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case VLC_FOURCC( 'M', 'P', 'G', '4' ):
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case VLC_FOURCC( 'm', 'p', 'g', '4' ):
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p_dec->fmt_out.i_codec = VLC_FOURCC( 'D', 'I', 'V', '1' );
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break;
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case VLC_FOURCC( 'd', 'i', 'v', '2' ):
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case VLC_FOURCC( 'M', 'P', '4', '2' ):
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case VLC_FOURCC( 'm', 'p', '4', '2' ):
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p_dec->fmt_out.i_codec = VLC_FOURCC( 'D', 'I', 'V', '2' );
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break;
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case VLC_FOURCC( 'd', 'i', 'v', '3' ):
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case VLC_FOURCC( 'd', 'i', 'v', '4' ):
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case VLC_FOURCC( 'D', 'I', 'V', '4' ):
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case VLC_FOURCC( 'd', 'i', 'v', '5' ):
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case VLC_FOURCC( 'D', 'I', 'V', '5' ):
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case VLC_FOURCC( 'd', 'i', 'v', '6' ):
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case VLC_FOURCC( 'D', 'I', 'V', '6' ):
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case VLC_FOURCC( 'M', 'P', '4', '3' ):
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case VLC_FOURCC( 'm', 'p', '4', '3' ):
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case VLC_FOURCC( 'm', 'p', 'g', '3' ):
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case VLC_FOURCC( 'M', 'P', 'G', '3' ):
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case VLC_FOURCC( 'A', 'P', '4', '1' ):
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p_dec->fmt_out.i_codec = VLC_FOURCC( 'D', 'I', 'V', '3' );
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break;
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case VLC_FOURCC( 'h', '2', '6', '3' ):
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case VLC_FOURCC( 'U', '2', '6', '3' ):
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case VLC_FOURCC( 'u', '2', '6', '3' ):
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p_dec->fmt_out.i_codec = VLC_FOURCC( 'H', '2', '6', '3' );
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break;
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case VLC_FOURCC( 'i', '2', '6', '3' ):
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p_dec->fmt_out.i_codec = VLC_FOURCC( 'I', '2', '6', '3' );
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break;
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case VLC_FOURCC( 'm', 'j', 'p', 'g' ):
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case VLC_FOURCC( 'm', 'j', 'p', 'a' ):
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case VLC_FOURCC( 'j', 'p', 'e', 'g' ):
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case VLC_FOURCC( 'J', 'P', 'E', 'G' ):
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case VLC_FOURCC( 'J', 'F', 'I', 'F' ):
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p_dec->fmt_out.i_codec = VLC_FOURCC( 'M', 'J', 'P', 'G' );
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break;
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case VLC_FOURCC( 'd', 'v', 's', 'd' ):
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case VLC_FOURCC( 'D', 'V', 'S', 'D' ):
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case VLC_FOURCC( 'd', 'v', 'h', 'd' ):
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p_dec->fmt_out.i_codec = VLC_FOURCC( 'd', 'v', 's', 'l' );
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break;
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/* audio */
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case VLC_FOURCC( 'a', 'r', 'a', 'w' ):
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switch( ( p_dec->fmt_in.audio.i_bitspersample + 7 ) / 8 )
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{
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case 1:
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p_dec->fmt_out.i_codec = VLC_FOURCC('u','8',' ',' ');
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break;
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case 2:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','1','6','l');
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break;
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case 3:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','2','4','l');
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break;
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case 4:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','3','2','l');
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break;
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default:
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msg_Err( p_dec, "unknown raw audio sample size" );
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return VLC_EGENERIC;
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}
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break;
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case VLC_FOURCC( 't', 'w', 'o', 's' ):
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switch( ( p_dec->fmt_in.audio.i_bitspersample + 7 ) / 8 )
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{
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case 1:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','8',' ',' ');
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break;
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case 2:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','1','6','b');
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break;
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case 3:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','2','4','b');
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break;
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case 4:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','3','2','b');
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break;
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default:
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msg_Err( p_dec, "unknown raw audio sample size" );
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return VLC_EGENERIC;
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}
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break;
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case VLC_FOURCC( 's', 'o', 'w', 't' ):
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switch( ( p_dec->fmt_in.audio.i_bitspersample + 7 ) / 8 )
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{
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case 1:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','8',' ',' ');
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break;
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case 2:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','1','6','l');
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break;
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case 3:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','2','4','l');
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break;
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case 4:
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p_dec->fmt_out.i_codec = VLC_FOURCC('s','3','2','l');
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break;
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default:
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msg_Err( p_dec, "unknown raw audio sample size" );
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return VLC_EGENERIC;
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}
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break;
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}
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p_dec->p_sys = p_sys = malloc( sizeof( block_t ) );
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p_sys->p_block = NULL;
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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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decoder_t *p_dec = (decoder_t*)p_this;
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if( p_dec->p_sys->p_block )
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{
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block_ChainRelease( p_dec->p_sys->p_block );
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}
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es_format_Clean( &p_dec->fmt_out );
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free( p_dec->p_sys );
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}
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/*****************************************************************************
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* Packetize: packetize an unit (here copy a complete block )
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*****************************************************************************/
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static block_t *Packetize ( decoder_t *p_dec, block_t **pp_block )
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{
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block_t *p_block;
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block_t *p_ret = p_dec->p_sys->p_block;
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if( pp_block == NULL || *pp_block == NULL )
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return NULL;
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if( (*pp_block)->i_flags&(BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )
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{
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block_Release( *pp_block );
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return NULL;
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}
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p_block = *pp_block;
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*pp_block = NULL;
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if( p_block->i_dts <= 0 )
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{
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p_block->i_dts = p_block->i_pts;
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}
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if( p_block->i_dts <= 0 )
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{
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msg_Dbg( p_dec, "need dts > 0" );
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block_Release( p_block );
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return NULL;
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}
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if( p_ret != NULL && p_block->i_pts > p_ret->i_pts )
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{
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p_ret->i_length = p_block->i_pts - p_ret->i_pts;
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}
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p_dec->p_sys->p_block = p_block;
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return p_ret;
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}
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/*****************************************************************************
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* PacketizeSub: packetize an unit (here copy a complete block )
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*****************************************************************************/
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static block_t *PacketizeSub( decoder_t *p_dec, block_t **pp_block )
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{
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block_t *p_block;
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if( pp_block == NULL || *pp_block == NULL )
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return NULL;
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if( (*pp_block)->i_flags&(BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED) )
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{
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block_Release( *pp_block );
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return NULL;
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}
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p_block = *pp_block;
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*pp_block = NULL;
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if( p_block->i_dts <= 0 )
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{
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p_block->i_dts = p_block->i_pts;
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}
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if( p_block->i_dts <= 0 )
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{
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msg_Dbg( p_dec, "need dts > 0" );
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block_Release( p_block );
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return NULL;
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}
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return p_block;
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}
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