Skip to content

V
vlc
Commit 91e1fa30 authored by Gildas Bazin's avatar Gildas Bazin
Browse files
Options

* modules/demux/aac.c: removed deprecated aac demux (replaced by the m4a demux... 

* modules/demux/aac.c: removed deprecated aac demux (replaced by the m4a demux which uses the m4a packetizer).
parent 9389e7cc
Hide whitespace changes
Inline Side-by-side
Showing with 0 additions and 275 deletions
modules/demux/Modules.am
View file @ 91e1fa30
......@@ -7,7 +7,6 @@ SOURCES_demuxdump = demuxdump.c
SOURCES_rawdv = rawdv.c
SOURCES_au = au.c
SOURCES_wav = wav.c
SOURCES_aac = aac.c
SOURCES_mkv = mkv.cpp mp4/libmp4.c mp4/drms.c
SOURCES_livedotcom = livedotcom.cpp ../access/mms/asf.c ../access/mms/buffer.c
SOURCES_nsv = nsv.c
......
modules/demux/aac.c deleted 100644 → 0
View file @ 9389e7cc
/*****************************************************************************
* aac.c : Raw aac Stream input module for vlc
*****************************************************************************
* Copyright (C) 2001-2003 VideoLAN
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* 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/input.h>
/*****************************************************************************
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
vlc_module_begin();
set_category( CAT_INPUT );
set_subcategory( SUBCAT_INPUT_DEMUX );
set_description( _("AAC demuxer" ) );
set_capability( "demux2", 100 );
set_callbacks( Open, Close );
add_shortcut( "aac" );
vlc_module_end();
/* TODO:
* - adif support ?
*
*/
/*****************************************************************************
* Local prototypes
*****************************************************************************/
struct demux_sys_t
{
mtime_t i_time;
es_out_id_t *p_es;
};
static int Demux ( demux_t * );
static int Control( demux_t *, int, va_list );
static int i_aac_samplerate[16] =
{
96000, 88200, 64000, 48000, 44100, 32000,
24000, 22050, 16000, 12000, 11025, 8000,
7350, 0, 0, 0
};
#define AAC_ID( p ) ( ((p)[1]>>3)&0x01 )
#define AAC_SAMPLE_RATE( p ) i_aac_samplerate[((p)[2]>>2)&0x0f]
#define AAC_CHANNELS( p ) ( (((p)[2]&0x01)<<2) | (((p)[3]>>6)&0x03) )
#define AAC_FRAME_SIZE( p ) ( (((p)[3]&0x03) << 11)|( (p)[4] << 3 )|( (((p)[5]) >>5)&0x7 ) )
/* FIXME it's plain wrong */
#define AAC_FRAME_SAMPLES( p ) 1024
static inline int HeaderCheck( uint8_t *p )
{
if( p[0] != 0xff ||
( p[1]&0xf6 ) != 0xf0 ||
AAC_SAMPLE_RATE( p ) == 0 ||
AAC_CHANNELS( p ) == 0 ||
AAC_FRAME_SIZE( p ) == 0 )
{
return VLC_FALSE;
}
return VLC_TRUE;
}
/*****************************************************************************
* Open: initializes AAC demux structures
*****************************************************************************/
static int Open( vlc_object_t * p_this )
{
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys;
int b_forced = VLC_FALSE;
uint8_t *p_peek;
module_t *p_id3;
es_format_t fmt;
if( !strncmp( p_demux->psz_demux, "aac", 3 ) )
{
b_forced = VLC_TRUE;
}
if( p_demux->psz_path )
{
int i_len = strlen( p_demux->psz_path );
if( i_len > 4 && !strcasecmp( &p_demux->psz_path[i_len - 4], ".aac" ) )
{
b_forced = VLC_TRUE;
}
}
if( !b_forced )
{
/* I haven't find any sure working aac detection so only forced or
* extention check
*/
return VLC_EGENERIC;
}
/* skip possible id3 header */
if( ( p_id3 = module_Need( p_demux, "id3", NULL, 0 ) ) )
{
module_Unneed( p_demux, p_id3 );
}
p_demux->pf_demux = Demux;
p_demux->pf_control = Control;
p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
p_sys->i_time = 1;
/* peek the begining (10 is for adts header) */
if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 )
{
msg_Err( p_demux, "cannot peek" );
goto error;
}
if( !strncmp( p_peek, "ADIF", 4 ) )
{
msg_Err( p_demux, "ADIF file. Not yet supported. (Please report)" );
goto error;
}
es_format_Init( &fmt, AUDIO_ES, VLC_FOURCC( 'm', 'p', '4', 'a' ) );
if( HeaderCheck( p_peek ) )
{
fmt.audio.i_channels = AAC_CHANNELS( p_peek );
fmt.audio.i_rate = AAC_SAMPLE_RATE( p_peek );
msg_Dbg( p_demux,
"adts header: id=%d channels=%d sample_rate=%d",
AAC_ID( p_peek ),
AAC_CHANNELS( p_peek ),
AAC_SAMPLE_RATE( p_peek ) );
}
p_sys->p_es = es_out_Add( p_demux->out, &fmt );
return VLC_SUCCESS;
error:
free( p_sys );
return VLC_EGENERIC;
}
/*****************************************************************************
* Demux: reads and demuxes data packets
*****************************************************************************
* Returns -1 in case of error, 0 in case of EOF, 1 otherwise
*****************************************************************************/
static int Demux( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_block;
uint8_t h[8];
uint8_t *p_peek;
if( stream_Peek( p_demux->s, &p_peek, 8 ) < 8 )
{
msg_Warn( p_demux, "cannot peek" );
return 0;
}
if( !HeaderCheck( p_peek ) )
{
/* we need to resynch */
vlc_bool_t b_ok = VLC_FALSE;
int i_skip = 0;
int i_peek;
i_peek = stream_Peek( p_demux->s, &p_peek, 8096 );
if( i_peek < 8 )
{
msg_Warn( p_demux, "cannot peek" );
return 0;
}
while( i_peek >= 8 )
{
if( HeaderCheck( p_peek ) )
{
b_ok = VLC_TRUE;
break;
}
p_peek++;
i_peek--;
i_skip++;
}
msg_Warn( p_demux, "garbage=%d bytes", i_skip );
stream_Read( p_demux->s, NULL, i_skip );
return 1;
}
memcpy( h, p_peek, 8 ); /* can't use p_peek after stream_* */
/* set PCR */
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_time );
if( ( p_block = stream_Block( p_demux->s, AAC_FRAME_SIZE( h ) ) ) == NULL )
{
msg_Warn( p_demux, "cannot read data" );
return 0;
}
p_block->i_dts = p_block->i_pts = p_sys->i_time;
es_out_Send( p_demux->out, p_sys->p_es, p_block );
p_sys->i_time += (mtime_t)1000000 *
(mtime_t)AAC_FRAME_SAMPLES( h ) /
(mtime_t)AAC_SAMPLE_RATE( h );
return( 1 );
}
/*****************************************************************************
* Close: frees unused data
*****************************************************************************/
static void Close( vlc_object_t * p_this )
{
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys = p_demux->p_sys;
free( p_sys );
}
/*****************************************************************************
* Control:
*****************************************************************************/
static int Control( demux_t *p_demux, int i_query, va_list args )
{
/* demux_sys_t *p_sys = p_demux->p_sys; */
/* FIXME calculate the bitrate */
if( i_query == DEMUX_SET_TIME )
return VLC_EGENERIC;
else
return demux2_vaControlHelper( p_demux->s,
0, -1,
8*0, 1, i_query, args );
}
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment