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vlc-1.1
Commit aa793fae authored by Laurent Aimar's avatar Laurent Aimar
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* mpga: demux -> demux2.

parent 08ece243
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Showing with 64 additions and 102 deletions
modules/demux/mpeg/mpga.c
View file @ aa793fae
......@@ -2,7 +2,7 @@
* mpga.c : MPEG-I/II Audio input module for vlc
*****************************************************************************
* Copyright (C) 2001-2004 VideoLAN
* $Id: mpga.c,v 1.16 2004/01/25 20:05:28 hartman Exp $
* $Id: mpga.c,v 1.17 2004/03/03 11:41:04 fenrir Exp $
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
......@@ -33,11 +33,11 @@
* Module descriptor
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
static void Close( vlc_object_t * );
vlc_module_begin();
set_description( _("MPEG-I/II audio demuxer" ) );
set_capability( "demux", 100 );
set_capability( "demux2", 100 );
set_callbacks( Open, Close );
add_shortcut( "mpga" );
add_shortcut( "mp3" );
......@@ -50,7 +50,8 @@ vlc_module_end();
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Demux ( input_thread_t * );
static int Demux ( demux_t * );
static int Control( demux_t *, int, va_list );
struct demux_sys_t
{
......@@ -135,74 +136,44 @@ static int mpga_frame_samples( uint32_t h )
}
}
#if 0
static int CheckPS( input_thread_t *p_input )
{
uint8_t *p_peek;
int i_startcode = 0;
int i_size = input_Peek( p_input, &p_peek, 8196 );
while( i_size > 4 )
{
if( ( p_peek[0] == 0 ) && ( p_peek[1] == 0 ) &&
( p_peek[2] == 1 ) && ( p_peek[3] >= 0xb9 ) &&
++i_startcode >= 3 )
{
return 1;
}
p_peek++;
i_size--;
}
return 0;
}
#endif
/*****************************************************************************
* Open: initializes demux structures
*****************************************************************************/
static int Open( vlc_object_t * p_this )
{
input_thread_t *p_input = (input_thread_t *)p_this;
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys;
vlc_bool_t b_forced = VLC_FALSE;
vlc_bool_t b_extention = VLC_FALSE;
uint32_t header;
uint8_t *p_peek;
module_t *p_id3;
es_format_t fmt;
if( p_input->psz_demux &&
( !strncmp( p_input->psz_demux, "mpga", 4 ) ||
!strncmp( p_input->psz_demux, "mp3", 3 ) ) )
if( !strncmp( p_demux->psz_demux, "mpga", 4 ) ||
!strncmp( p_demux->psz_demux, "mp3", 3 ) )
{
b_forced = VLC_TRUE;
}
if( p_input->psz_name )
if( p_demux->psz_path )
{
int i_len = strlen( p_input->psz_name );
if( i_len > 4 && !strcasecmp( &p_input->psz_name[i_len - 4], ".mp3" ) )
int i_len = strlen( p_demux->psz_path );
if( i_len > 4 && !strcasecmp( &p_demux->psz_path[i_len - 4], ".mp3" ) )
{
b_extention = VLC_TRUE;
}
}
/* skip possible id3 header */
p_id3 = module_Need( p_input, "id3", NULL );
if ( p_id3 )
if( ( p_id3 = module_Need( p_demux, "id3", NULL ) ) )
{
module_Unneed( p_input, p_id3 );
module_Unneed( p_demux, p_id3 );
}
if( input_Peek( p_input, &p_peek, 4 ) < 4 )
if( stream_Peek( p_demux->s, &p_peek, 4 ) < 4 )
{
msg_Err( p_input, "cannot peek" );
msg_Err( p_demux, "cannot peek" );
return VLC_EGENERIC;
}
......@@ -213,11 +184,11 @@ static int Open( vlc_object_t * p_this )
if( !b_forced && !b_extention )
{
msg_Warn( p_input, "mpga module discarded" );
msg_Warn( p_demux, "mpga module discarded" );
return VLC_EGENERIC;
}
i_peek = input_Peek( p_input, &p_peek, 8096 );
i_peek = stream_Peek( p_demux->s, &p_peek, 8096 );
while( i_peek > 4 )
{
......@@ -231,15 +202,14 @@ static int Open( vlc_object_t * p_this )
}
if( !b_ok && !b_forced )
{
msg_Warn( p_input, "mpga module discarded" );
msg_Warn( p_demux, "mpga module discarded" );
return VLC_EGENERIC;
}
}
p_input->pf_demux = Demux;
p_input->pf_demux_control = demux_vaControlDefault;
p_input->p_demux_data = p_sys = malloc( sizeof( demux_sys_t ) );
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 = 0;
p_sys->i_bitrate_avg = 0;
......@@ -252,7 +222,7 @@ static int Open( vlc_object_t * p_this )
char psz_description[50];
p_sys->i_bitrate_avg = MPGA_BITRATE( header ) * 1000;
if( ( i_xing = stream_Peek( p_input->s, &p_xing, 1024 ) ) >= 21 )
if( ( i_xing = stream_Peek( p_demux->s, &p_xing, 1024 ) ) >= 21 )
{
int i_skip;
......@@ -305,12 +275,12 @@ static int Open( vlc_object_t * p_this )
(int64_t)MPGA_SAMPLE_RATE( header ) /
(int64_t)i_frames /
(int64_t)mpga_frame_samples( header );
msg_Dbg( p_input, "xing frames&bytes value present (%db/s)", p_sys->i_bitrate_avg );
msg_Dbg( p_demux, "xing frames&bytes value present (%db/s)", p_sys->i_bitrate_avg );
}
}
}
msg_Dbg( p_input, "version=%d layer=%d channels=%d samplerate=%d",
msg_Dbg( p_demux, "version=%d layer=%d channels=%d samplerate=%d",
MPGA_VERSION( header ) + 1,
MPGA_LAYER( header ) + 1,
MPGA_CHANNELS( header ),
......@@ -324,24 +294,10 @@ static int Open( vlc_object_t * p_this )
fmt.psz_description = strdup( psz_description );
}
vlc_mutex_lock( &p_input->stream.stream_lock );
if( input_InitStream( p_input, 0 ) == -1)
{
vlc_mutex_unlock( &p_input->stream.stream_lock );
msg_Err( p_input, "cannot init stream" );
p_sys->p_es = es_out_Add( p_demux->out, &fmt );
if( fmt.psz_description ) free( fmt.psz_description );
goto error;
}
p_input->stream.i_mux_rate = p_sys->i_bitrate_avg / 8 / 50;
vlc_mutex_unlock( &p_input->stream.stream_lock );
p_sys->p_es = es_out_Add( p_input->p_es_out, &fmt );
if( fmt.psz_description ) free( fmt.psz_description );
return VLC_SUCCESS;
error:
free( p_sys );
return VLC_EGENERIC;
}
......@@ -350,17 +306,17 @@ error:
*****************************************************************************
* Returns -1 in case of error, 0 in case of EOF, 1 otherwise
*****************************************************************************/
static int Demux( input_thread_t * p_input )
static int Demux( demux_t *p_demux )
{
demux_sys_t *p_sys = p_input->p_demux_data;
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_frame;
uint32_t header;
uint8_t *p_peek;
if( stream_Peek( p_input->s, &p_peek, 4 ) < 4 )
if( stream_Peek( p_demux->s, &p_peek, 4 ) < 4 )
{
msg_Warn( p_input, "cannot peek" );
msg_Warn( p_demux, "cannot peek" );
return 0;
}
......@@ -371,10 +327,10 @@ static int Demux( input_thread_t * p_input )
int i_skip = 0;
int i_peek;
i_peek = stream_Peek( p_input->s, &p_peek, 8096 );
i_peek = stream_Peek( p_demux->s, &p_peek, 8096 );
if( i_peek < 4 )
{
msg_Warn( p_input, "cannot peek" );
msg_Warn( p_demux, "cannot peek" );
return 0;
}
......@@ -391,28 +347,23 @@ static int Demux( input_thread_t * p_input )
i_skip++;
}
msg_Warn( p_input, "garbage=%d bytes", i_skip );
stream_Read( p_input->s, NULL, i_skip );
msg_Warn( p_demux, "garbage=%d bytes", i_skip );
stream_Read( p_demux->s, NULL, i_skip );
return 1;
}
input_ClockManageRef( p_input,
p_input->stream.p_selected_program,
p_sys->i_time * 9 / 100 );
if( ( p_frame = stream_Block( p_input->s, mpga_frame_size( header ) ) ) == NULL )
if( ( p_frame = stream_Block( p_demux->s,
mpga_frame_size( header ) ) ) == NULL )
{
msg_Warn( p_input, "cannot read data" );
msg_Warn( p_demux, "cannot read data" );
return 0;
}
p_frame->i_dts = p_frame->i_pts = p_sys->i_time;
p_frame->i_dts =
p_frame->i_pts =
input_ClockGetTS( p_input,
p_input->stream.p_selected_program,
p_sys->i_time * 9 / 100 );
/* set PCR */
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_time );
es_out_Send( p_input->p_es_out, p_sys->p_es, p_frame );
es_out_Send( p_demux->out, p_sys->p_es, p_frame );
p_sys->i_time += (mtime_t)1000000 *
(mtime_t)mpga_frame_samples( header ) /
......@@ -425,9 +376,20 @@ static int Demux( input_thread_t * p_input )
*****************************************************************************/
static void Close( vlc_object_t * p_this )
{
input_thread_t *p_input = (input_thread_t*)p_this;
demux_sys_t *p_sys = p_input->p_demux_data;
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;
return demux2_vaControlHelper( p_demux->s,
0, -1,
p_sys->i_bitrate_avg, 1, i_query, args );
}
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