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/* $Id: reader.c,v 1.21 2005/11/25 15:05:25 titer Exp $
This file is part of the HandBrake source code.
Homepage: <http://handbrake.m0k.org/>.
It may be used under the terms of the GNU General Public License. */
#include "hb.h"
typedef struct
{
hb_job_t * job;
hb_title_t * title;
volatile int * die;
hb_dvd_t * dvd;
hb_buffer_t * ps;
hb_stream_t * stream;
} hb_reader_t;
/***********************************************************************
* Local prototypes
**********************************************************************/
static void ReaderFunc( void * );
static hb_fifo_t * GetFifoForId( hb_job_t * job, int id );
/***********************************************************************
* hb_reader_init
***********************************************************************
*
**********************************************************************/
hb_thread_t * hb_reader_init( hb_job_t * job )
{
hb_reader_t * r;
r = calloc( sizeof( hb_reader_t ), 1 );
r->job = job;
r->title = job->title;
r->die = job->die;
return hb_thread_init( "reader", ReaderFunc, r,
HB_NORMAL_PRIORITY );
}
/***********************************************************************
* ReaderFunc
***********************************************************************
*
**********************************************************************/
static void ReaderFunc( void * _r )
{
hb_reader_t * r = _r;
hb_fifo_t * fifo;
hb_buffer_t * buf;
hb_list_t * list;
int chapter = -1;
if( !( r->dvd = hb_dvd_init( r->title->dvd ) ) )
{
if ( !(r->stream = hb_stream_open(r->title->dvd) ) )
{
return;
}
}
if (r->dvd)
{
if( !hb_dvd_start( r->dvd, r->title->index, r->job->chapter_start ) )
{
hb_dvd_close( &r->dvd );
return;
}
}
if (r->stream)
{
// At this point r->audios[0] gives us the index of the selected audio track for output track 0
// we cannot effectively demux multiple PID's into the seperate output tracks unfortunately
// so we'll just specifiy things here for a single track.
hb_stream_set_selected_audio_pid_index(r->stream, r->job->audios[0]);
}
list = hb_list_init();
r->ps = hb_buffer_init( HB_DVD_READ_BUFFER_SIZE );
while( !*r->die && !r->job->done )
{
if (r->dvd)
chapter = hb_dvd_chapter( r->dvd );
else if (r->stream)
chapter = 1;
if( chapter < 0 )
{
hb_log( "reader: end of the title reached" );
break;
}
if( chapter > r->job->chapter_end )
{
hb_log( "reader: end of chapter %d reached (%d)",
r->job->chapter_end, chapter );
break;
}
if (r->dvd)
{
if( !hb_dvd_read( r->dvd, r->ps ) )
{
break;
}
}
else if (r->stream)
{
if ( !hb_stream_read( r->stream, r->ps ) )
{
break;
}
}
if( r->job->indepth_scan )
{
/*
* Need to update the progress during a subtitle scan
*/
hb_state_t state;
#define p state.param.working
state.state = HB_STATE_WORKING;
p.progress = (float)chapter / (float)r->job->chapter_end;
if( p.progress > 1.0 )
{
p.progress = 1.0;
}
p.rate_avg = 0.0;
p.hours = -1;
p.minutes = -1;
p.seconds = -1;
hb_set_state( r->job->h, &state );
}
hb_demux_ps( r->ps, list );
while( ( buf = hb_list_item( list, 0 ) ) )
{
hb_list_rem( list, buf );
fifo = GetFifoForId( r->job, buf->id );
if( fifo )
{
while( !*r->die && !r->job->done &&
hb_fifo_is_full( fifo ) )
{
hb_snooze( 50 );
}
hb_fifo_push( fifo, buf );
}
else
{
hb_buffer_close( &buf );
}
}
}
hb_list_empty( &list );
hb_buffer_close( &r->ps );
if (r->dvd)
{
hb_dvd_stop( r->dvd );
hb_dvd_close( &r->dvd );
}
else if (r->stream)
{
hb_stream_close(&r->stream);
}
free( r );
_r = NULL;
hb_log( "reader: done" );
}
/***********************************************************************
* GetFifoForId
***********************************************************************
*
**********************************************************************/
static hb_fifo_t * GetFifoForId( hb_job_t * job, int id )
{
hb_title_t * title = job->title;
hb_audio_t * audio;
hb_subtitle_t * subtitle;
int i;
if( id == 0xE0 )
{
if( job->indepth_scan )
{
/*
* Ditch the video here during the indepth scan until
* we can improve the MPEG2 decode performance.
*/
return NULL;
}
else
{
return job->fifo_mpeg2;
}
}
if( job->indepth_scan ) {
/*
* Count the occurances of the subtitles, don't actually
* return any to encode unless we are looking fro forced
* subtitles in which case we need to look in the sub picture
* to see if it has the forced flag enabled.
*/
for (i=0; i < hb_list_count(title->list_subtitle); i++) {
subtitle = hb_list_item( title->list_subtitle, i);
if (id == subtitle->id) {
/*
* A hit, count it.
*/
subtitle->hits++;
if( job->subtitle_force )
{
return subtitle->fifo_in;
}
break;
}
}
} else {
if( ( subtitle = hb_list_item( title->list_subtitle, 0 ) ) &&
id == subtitle->id )
{
return subtitle->fifo_in;
}
}
if( !job->indepth_scan )
{
for( i = 0; i < hb_list_count( title->list_audio ); i++ )
{
audio = hb_list_item( title->list_audio, i );
if( id == audio->id )
{
return audio->fifo_in;
}
}
}
return NULL;
}
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