es_out.c 31.4 KB
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/*****************************************************************************
 * es_out.c: Es Out handler for input.
 *****************************************************************************
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 * Copyright (C) 2003-2004 VideoLAN
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 * $Id$
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 *
 * 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>

#include <vlc/vlc.h>
#include <vlc/input.h>
#include <vlc/decoder.h>

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#include "input_internal.h"

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#include "vlc_playlist.h"
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#include "iso_lang.h"
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/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
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typedef struct
{
    /* Program ID */
    int i_id;

    /* Number of es for this pgrm */
    int i_es;

    vlc_bool_t b_selected;

    /* Clock for this program */
    input_clock_t clock;

} es_out_pgrm_t;

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struct es_out_id_t
{
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    /* ES ID */
    int       i_id;
    es_out_pgrm_t *p_pgrm;

    /* Channel in the track type */
    int         i_channel;
    es_format_t fmt;
    char        *psz_description;
    decoder_t   *p_dec;
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};

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struct es_out_sys_t
{
    input_thread_t *p_input;

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    /* all programs */
    int           i_pgrm;
    es_out_pgrm_t **pgrm;
    es_out_pgrm_t *p_pgrm;  /* Master program */

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    /* all es */
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    int         i_id;
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    int         i_es;
    es_out_id_t **es;
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    /* mode gestion */
    vlc_bool_t  b_active;
    int         i_mode;

    /* es count */
    int         i_audio;
    int         i_video;
    int         i_sub;

    /* es to select */
    int         i_audio_last;
    int         i_sub_last;

    /* current main es */
    es_out_id_t *p_es_audio;
    es_out_id_t *p_es_video;
    es_out_id_t *p_es_sub;
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    /* delay */
    int64_t i_audio_delay;
    int64_t i_spu_delay;
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};

static es_out_id_t *EsOutAdd    ( es_out_t *, es_format_t * );
static int          EsOutSend   ( es_out_t *, es_out_id_t *, block_t * );
static void         EsOutDel    ( es_out_t *, es_out_id_t * );
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static void         EsOutSelect( es_out_t *out, es_out_id_t *es, vlc_bool_t b_force );
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static int          EsOutControl( es_out_t *, int i_query, va_list );

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static void         EsOutAddInfo( es_out_t *, es_out_id_t *es );
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static void EsSelect( es_out_t *out, es_out_id_t *es );
static void EsUnselect( es_out_t *out, es_out_id_t *es, vlc_bool_t b_update );
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static char *LanguageGetName( const char *psz_code );
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/*****************************************************************************
 * input_EsOutNew:
 *****************************************************************************/
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es_out_t *input_EsOutNew( input_thread_t *p_input )
{
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    es_out_t     *out = malloc( sizeof( es_out_t ) );
    es_out_sys_t *p_sys = malloc( sizeof( es_out_sys_t ) );
    vlc_value_t  val;
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    out->pf_add     = EsOutAdd;
    out->pf_send    = EsOutSend;
    out->pf_del     = EsOutDel;
    out->pf_control = EsOutControl;
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    out->p_sys      = p_sys;

    p_sys->p_input = p_input;

    p_sys->b_active = VLC_FALSE;
    p_sys->i_mode   = ES_OUT_MODE_AUTO;


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    p_sys->i_pgrm   = 0;
    p_sys->pgrm     = NULL;
    p_sys->p_pgrm   = NULL;

    p_sys->i_id    = 0;
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    p_sys->i_es    = 0;
    p_sys->es      = NULL;

    p_sys->i_audio = 0;
    p_sys->i_video = 0;
    p_sys->i_sub   = 0;

    var_Get( p_input, "audio-channel", &val );
    p_sys->i_audio_last = val.i_int;

    var_Get( p_input, "spu-channel", &val );
    p_sys->i_sub_last = val.i_int;

    p_sys->p_es_audio = NULL;
    p_sys->p_es_video = NULL;
    p_sys->p_es_sub   = NULL;
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    p_sys->i_audio_delay= 0;
    p_sys->i_spu_delay  = 0;

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    return out;
}

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/*****************************************************************************
 * input_EsOutDelete:
 *****************************************************************************/
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void input_EsOutDelete( es_out_t *out )
{
    es_out_sys_t *p_sys = out->p_sys;
    int i;

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    for( i = 0; i < p_sys->i_es; i++ )
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    {
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        if( p_sys->es[i]->p_dec )
        {
            input_DecoderDelete( p_sys->es[i]->p_dec );
        }
        if( p_sys->es[i]->psz_description )
            free( p_sys->es[i]->psz_description );
        es_format_Clean( &p_sys->es[i]->fmt );

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        free( p_sys->es[i] );
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    }
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    if( p_sys->es )
        free( p_sys->es );
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    for( i = 0; i < p_sys->i_pgrm; i++ )
    {
        free( p_sys->pgrm[i] );
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    }
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    if( p_sys->pgrm )
        free( p_sys->pgrm );

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    free( p_sys );
    free( out );
}
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es_out_id_t *input_EsOutGetFromID( es_out_t *out, int i_id )
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{
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    int i;
    if( i_id < 0 )
    {
        /* Special HACK, -i_id is tha cat of the stream */
        return (es_out_id_t*)((uint8_t*)NULL-i_id);
    }
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    for( i = 0; i < out->p_sys->i_es; i++ )
    {
        if( out->p_sys->es[i]->i_id == i_id )
            return out->p_sys->es[i];
    }
    return NULL;
}
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void input_EsOutDiscontinuity( es_out_t *out, vlc_bool_t b_audio )
{
    es_out_sys_t      *p_sys = out->p_sys;
    int i;
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    for( i = 0; i < p_sys->i_es; i++ )
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    {
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        es_out_id_t *es = p_sys->es[i];
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        /* Send a dummy block to let decoder know that
         * there is a discontinuity */
        if( es->p_dec && ( !b_audio || es->fmt.i_cat == AUDIO_ES ) )
        {
            input_DecoderDiscontinuity( es->p_dec );
        }
    }
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}
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void input_EsOutSetDelay( es_out_t *out, int i_cat, int64_t i_delay )
{
    es_out_sys_t *p_sys = out->p_sys;

    if( i_cat == AUDIO_ES )
        p_sys->i_audio_delay = i_delay;
    else if( i_cat == SPU_ES )
        p_sys->i_spu_delay = i_delay;
}

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vlc_bool_t input_EsOutDecodersEmpty( es_out_t *out )
{
    es_out_sys_t      *p_sys = out->p_sys;
    int i;

    for( i = 0; i < p_sys->i_es; i++ )
    {
        es_out_id_t *es = p_sys->es[i];

        if( es->p_dec && !input_DecoderEmpty( es->p_dec ) )
            return VLC_FALSE;
    }
    return VLC_TRUE;
}

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/*****************************************************************************
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 *
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 *****************************************************************************/
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static void EsOutESVarUpdate( es_out_t *out, es_out_id_t *es,
                              vlc_bool_t b_delete )
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{
    es_out_sys_t      *p_sys = out->p_sys;
    input_thread_t    *p_input = p_sys->p_input;
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    vlc_value_t       val, text;
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    char *psz_var;
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    if( es->fmt.i_cat == AUDIO_ES )
        psz_var = "audio-es";
    else if( es->fmt.i_cat == VIDEO_ES )
        psz_var = "video-es";
    else if( es->fmt.i_cat == SPU_ES )
        psz_var = "spu-es";
    else
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        return;
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    if( b_delete )
    {
        val.i_int = es->i_id;
        var_Change( p_input, psz_var, VLC_VAR_DELCHOICE, &val, NULL );
        var_SetBool( p_sys->p_input, "intf-change", VLC_TRUE );
        return;
    }

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    /* Get the number of ES already added */
    var_Change( p_input, psz_var, VLC_VAR_CHOICESCOUNT, &val, NULL );
    if( val.i_int == 0 )
    {
        vlc_value_t val2;

        /* First one, we need to add the "Disable" choice */
        val2.i_int = -1; text.psz_string = _("Disable");
        var_Change( p_input, psz_var, VLC_VAR_ADDCHOICE, &val2, &text );
        val.i_int++;
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    }

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    /* Take care of the ES description */
    if( es->psz_description && *es->psz_description )
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    {
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        text.psz_string = strdup( es->psz_description );
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    }
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    else
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    {
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        text.psz_string = malloc( strlen( _("Track %i") ) + 20 );
        sprintf( text.psz_string, _("Track %i"), val.i_int );
    }
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    val.i_int = es->i_id;
    var_Change( p_input, psz_var, VLC_VAR_ADDCHOICE, &val, &text );
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    free( text.psz_string );

    var_SetBool( p_sys->p_input, "intf-change", VLC_TRUE );
}

/* EsOutProgramSelect:
 *  Select a program and update the object variable
 */
static void EsOutProgramSelect( es_out_t *out, es_out_pgrm_t *p_pgrm )
{
    es_out_sys_t      *p_sys = out->p_sys;
    input_thread_t    *p_input = p_sys->p_input;
    vlc_value_t       val;
    int               i;

    if( p_sys->p_pgrm == p_pgrm )
        return; /* Nothing to do */

    if( p_sys->p_pgrm )
    {
        es_out_pgrm_t *old = p_sys->p_pgrm;
        msg_Dbg( p_input, "Unselecting program id=%d", old->i_id );
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        for( i = 0; i < p_sys->i_es; i++ )
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        {
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            if( p_sys->es[i]->p_pgrm == old && p_sys->es[i]->p_dec &&
                p_sys->i_mode != ES_OUT_MODE_ALL )
                EsUnselect( out, p_sys->es[i], VLC_TRUE );
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        }
    }

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    msg_Dbg( p_input, "Selecting program id=%d", p_pgrm->i_id );

    /* Mark it selected */
    p_pgrm->b_selected = VLC_TRUE;

    /* Switch master stream */
    if( p_sys->p_pgrm && p_sys->p_pgrm->clock.b_master )
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    {
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        p_sys->p_pgrm->clock.b_master = VLC_FALSE;
    }
    p_pgrm->clock.b_master = VLC_TRUE;
    p_sys->p_pgrm = p_pgrm;

    /* Update "program" */
    val.i_int = p_pgrm->i_id;
    var_Change( p_input, "program", VLC_VAR_SETVALUE, &val, NULL );

    /* Update "es-*" */
    var_Change( p_input, "audio-es", VLC_VAR_CLEARCHOICES, NULL, NULL );
    var_Change( p_input, "video-es", VLC_VAR_CLEARCHOICES, NULL, NULL );
    var_Change( p_input, "spu-es",   VLC_VAR_CLEARCHOICES, NULL, NULL );
    for( i = 0; i < p_sys->i_es; i++ )
    {
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        EsOutESVarUpdate( out, p_sys->es[i], VLC_FALSE );
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        EsOutSelect( out, p_sys->es[i], VLC_FALSE );
    }

    var_SetBool( p_sys->p_input, "intf-change", VLC_TRUE );
}

/* EsOutAddProgram:
 *  Add a program
 */
static es_out_pgrm_t *EsOutProgramAdd( es_out_t *out, int i_group )
{
    es_out_sys_t      *p_sys = out->p_sys;
    input_thread_t    *p_input = p_sys->p_input;
    vlc_value_t       val;

    es_out_pgrm_t *p_pgrm = malloc( sizeof( es_out_pgrm_t ) );

    /* Init */
    p_pgrm->i_id = i_group;
    p_pgrm->i_es = 0;
    p_pgrm->b_selected = VLC_FALSE;
    input_ClockInit( &p_pgrm->clock, VLC_FALSE, p_input->input.i_cr_average );

    /* Append it */
    TAB_APPEND( p_sys->i_pgrm, p_sys->pgrm, p_pgrm );

    /* Update "program" variable */
    val.i_int = i_group;
    var_Change( p_input, "program", VLC_VAR_ADDCHOICE, &val, NULL );

    if( i_group == var_GetInteger( p_input, "program" ) )
    {
        EsOutProgramSelect( out, p_pgrm );
    }
    else
    {
        var_SetBool( p_sys->p_input, "intf-change", VLC_TRUE );
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    }
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    return p_pgrm;
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}

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/* EsOutAdd:
 *  Add an es_out
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 */
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static es_out_id_t *EsOutAdd( es_out_t *out, es_format_t *fmt )
{
    es_out_sys_t      *p_sys = out->p_sys;
    input_thread_t    *p_input = p_sys->p_input;
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    es_out_id_t       *es = malloc( sizeof( es_out_id_t ) );
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    es_out_pgrm_t     *p_pgrm = NULL;
    int i;
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    if( fmt->i_group < 0 )
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    {
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        msg_Err( p_input, "invakud group number" );
        return NULL;
    }
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    /* Search the program */
    for( i = 0; i < p_sys->i_pgrm; i++ )
    {
        if( fmt->i_group == p_sys->pgrm[i]->i_id )
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        {
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            p_pgrm = p_sys->pgrm[i];
            break;
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        }
    }
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    if( p_pgrm == NULL )
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    {
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        /* Create a new one */
        p_pgrm = EsOutProgramAdd( out, fmt->i_group );
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    }
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    /* Increase ref count for program */
    p_pgrm->i_es++;
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    /* Set up ES */
    if( fmt->i_id < 0 )
        fmt->i_id = out->p_sys->i_id;
    es->i_id = fmt->i_id;
    es->p_pgrm = p_pgrm;
    es_format_Copy( &es->fmt, fmt );
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    switch( fmt->i_cat )
    {
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    case AUDIO_ES:
        es->i_channel = p_sys->i_audio;
        break;
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    case VIDEO_ES:
        es->i_channel = p_sys->i_video;
        break;
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    case SPU_ES:
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        es->i_channel = p_sys->i_sub;
        break;
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    default:
        es->i_channel = 0;
        break;
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    }
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    es->psz_description = LanguageGetName( fmt->psz_language );
    es->p_dec = NULL;

    if( es->p_pgrm == p_sys->p_pgrm )
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        EsOutESVarUpdate( out, es, VLC_FALSE );
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    /* Select it if needed */
    EsOutSelect( out, es, VLC_FALSE );
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    TAB_APPEND( out->p_sys->i_es, out->p_sys->es, es );
    p_sys->i_id++;  /* always incremented */
    switch( fmt->i_cat )
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    {
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        case AUDIO_ES:
            p_sys->i_audio++;
            break;
        case SPU_ES:
            p_sys->i_sub++;
            break;
        case VIDEO_ES:
            p_sys->i_video++;
            break;
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    }
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    EsOutAddInfo( out, es );

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    return es;
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}

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static void EsSelect( es_out_t *out, es_out_id_t *es )
{
    es_out_sys_t   *p_sys = out->p_sys;
    input_thread_t *p_input = p_sys->p_input;
    vlc_value_t    val;
    char           *psz_var;

    if( es->p_dec )
    {
        msg_Warn( p_input, "ES 0x%x is already selected", es->i_id );
        return;
    }

    if( es->fmt.i_cat == VIDEO_ES || es->fmt.i_cat == SPU_ES )
    {
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        if( !var_GetBool( p_input, "video" ) ||
            ( p_input->p_sout && !var_GetBool( p_input, "sout-video" ) ) )
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        {
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            msg_Dbg( p_input, "video is disabled, not selecting ES 0x%x",
                     es->i_id );
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            return;
        }
    }
    else if( es->fmt.i_cat == AUDIO_ES )
    {
        var_Get( p_input, "audio", &val );
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        if( !var_GetBool( p_input, "audio" ) ||
            ( p_input->p_sout && !var_GetBool( p_input, "sout-audio" ) ) )
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        {
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            msg_Dbg( p_input, "audio is disabled, not selecting ES 0x%x",
                     es->i_id );
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            return;
        }
    }

    es->p_dec = input_DecoderNew( p_input, &es->fmt, VLC_FALSE );
    if( es->p_dec == NULL || es->p_pgrm != p_sys->p_pgrm )
        return;

    if( es->fmt.i_cat == VIDEO_ES )
        psz_var = "video-es";
    else if( es->fmt.i_cat == AUDIO_ES )
        psz_var = "audio-es";
    else if( es->fmt.i_cat == SPU_ES )
        psz_var = "spu-es";
    else
        return;

    /* Mark it as selected */
    val.i_int = es->i_id;
    var_Change( p_input, psz_var, VLC_VAR_SETVALUE, &val, NULL );


    var_SetBool( p_sys->p_input, "intf-change", VLC_TRUE );
}

static void EsUnselect( es_out_t *out, es_out_id_t *es, vlc_bool_t b_update )
{
    es_out_sys_t   *p_sys = out->p_sys;
    input_thread_t *p_input = p_sys->p_input;
    vlc_value_t    val;
    char           *psz_var;

    if( es->p_dec == NULL )
    {
        msg_Warn( p_input, "ES 0x%x is already unselected", es->i_id );
        return;
    }

    input_DecoderDelete( es->p_dec );
    es->p_dec = NULL;

    if( !b_update )
        return;

    /* Update var */
    if( es->p_dec == NULL )
        return;
    if( es->fmt.i_cat == VIDEO_ES )
        psz_var = "video-es";
    else if( es->fmt.i_cat == AUDIO_ES )
        psz_var = "audio-es";
    else if( es->fmt.i_cat == SPU_ES )
        psz_var = "spu-es";
    else
        return;

    /* Mark it as selected */
    val.i_int = -1;
    var_Change( p_input, psz_var, VLC_VAR_SETVALUE, &val, NULL );

    var_SetBool( p_sys->p_input, "intf-change", VLC_TRUE );
}

/**
 * Select an ES given the current mode
 * XXX: you need to take a the lock before (stream.stream_lock)
 *
 * \param out The es_out structure
 * \param es es_out_id structure
 * \param b_force ...
 * \return nothing
 */
static void EsOutSelect( es_out_t *out, es_out_id_t *es, vlc_bool_t b_force )
{
    es_out_sys_t      *p_sys = out->p_sys;

    int i_cat = es->fmt.i_cat;

    if( !p_sys->b_active ||
        ( !b_force && es->fmt.i_priority < 0 ) )
    {
        return;
    }

    if( p_sys->i_mode == ES_OUT_MODE_ALL || b_force )
    {
        if( !es->p_dec )
            EsSelect( out, es );
    }
    else if( p_sys->i_mode == ES_OUT_MODE_AUTO )
    {
        int i_wanted  = -1;

        if( es->p_pgrm != p_sys->p_pgrm )
            return;

        if( i_cat == AUDIO_ES )
        {
            if( p_sys->p_es_audio &&
                p_sys->p_es_audio->fmt.i_priority >= es->fmt.i_priority )
            {
                return;
            }
            i_wanted  = p_sys->i_audio_last >= 0 ?
                            p_sys->i_audio_last : es->i_channel;
        }
        else if( i_cat == SPU_ES )
        {
            if( p_sys->p_es_sub &&
                p_sys->p_es_sub->fmt.i_priority >=
                    es->fmt.i_priority )
            {
                return;
            }
            i_wanted  = p_sys->i_sub_last;
        }
        else if( i_cat == VIDEO_ES )
        {
            i_wanted  = es->i_channel;
        }

        if( i_wanted == es->i_channel && es->p_dec == NULL )
            EsSelect( out, es );
    }

    /* FIXME TODO handle priority here */
    if( es->p_dec )
    {
        if( i_cat == AUDIO_ES )
        {
            if( p_sys->i_mode == ES_OUT_MODE_AUTO &&
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                p_sys->p_es_audio &&
                p_sys->p_es_audio != es &&
                p_sys->p_es_audio->p_dec )
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            {
                EsUnselect( out, p_sys->p_es_audio, VLC_FALSE );
            }
            p_sys->p_es_audio = es;
        }
        else if( i_cat == SPU_ES )
        {
            if( p_sys->i_mode == ES_OUT_MODE_AUTO &&
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                p_sys->p_es_sub &&
                p_sys->p_es_sub != es &&
                p_sys->p_es_sub->p_dec )
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            {
                EsUnselect( out, p_sys->p_es_sub, VLC_FALSE );
            }
            p_sys->p_es_sub = es;
        }
        else if( i_cat == VIDEO_ES )
        {
            p_sys->p_es_video = es;
        }
    }
}

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/**
 * Send a block for the given es_out
 *
 * \param out the es_out to send from
 * \param es the es_out_id
 * \param p_block the data block to send
 */
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static int EsOutSend( es_out_t *out, es_out_id_t *es, block_t *p_block )
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{
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    es_out_sys_t *p_sys = out->p_sys;
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    input_thread_t    *p_input = p_sys->p_input;
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    es_out_pgrm_t *p_pgrm = es->p_pgrm;
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    int64_t i_delay;

    if( es->fmt.i_cat == AUDIO_ES )
        i_delay = p_sys->i_audio_delay;
    else if( es->fmt.i_cat == SPU_ES )
        i_delay = p_sys->i_spu_delay;
    else
        i_delay = 0;
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    /* +11 -> avoid null value with non null dts/pts */
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    if( p_block->i_dts > 0 )
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    {
        p_block->i_dts =
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            input_ClockGetTS( p_input, &p_pgrm->clock,
                              ( p_block->i_dts + 11 ) * 9 / 100 ) + i_delay;
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    }
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    if( p_block->i_pts > 0 )
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    {
        p_block->i_pts =
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            input_ClockGetTS( p_input, &p_pgrm->clock,
                              ( p_block->i_pts + 11 ) * 9 / 100 ) + i_delay;
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    }
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    p_block->i_rate = p_input->i_rate;

    /* TODO handle mute */
    if( es->p_dec && ( es->fmt.i_cat != AUDIO_ES || p_input->i_rate == INPUT_RATE_DEFAULT ) )
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    {
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        input_DecoderDecode( es->p_dec, p_block );
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    }
    else
    {
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        block_Release( p_block );
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    }
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    return VLC_SUCCESS;
}

/*****************************************************************************
 * EsOutDel:
 *****************************************************************************/
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static void EsOutDel( es_out_t *out, es_out_id_t *es )
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{
    es_out_sys_t *p_sys = out->p_sys;

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    /* We don't try to reselect */
    if( es->p_dec )
        EsUnselect( out, es, es->p_pgrm == p_sys->p_pgrm );

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    if( es->p_pgrm == p_sys->p_pgrm )
        EsOutESVarUpdate( out, es, VLC_TRUE );

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    TAB_REMOVE( p_sys->i_es, p_sys->es, es );

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    es->p_pgrm->i_es--;
    if( es->p_pgrm->i_es == 0 )
    {
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        msg_Warn( p_sys->p_input, "Program doesn't contain anymore ES, "
                  "TODO cleaning ?" );
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    }

    if( p_sys->p_es_audio == es ) p_sys->p_es_audio = NULL;
    if( p_sys->p_es_video == es ) p_sys->p_es_video = NULL;
    if( p_sys->p_es_sub   == es ) p_sys->p_es_sub   = NULL;

    switch( es->fmt.i_cat )
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    {
        case AUDIO_ES:
            p_sys->i_audio--;
            break;
        case SPU_ES:
            p_sys->i_sub--;
            break;
        case VIDEO_ES:
            p_sys->i_video--;
            break;
    }
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    if( es->psz_description )
        free( es->psz_description );
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    es_format_Clean( &es->fmt );
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    free( es );
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}

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/**
 * Control query handler
 *
 * \param out the es_out to control
 * \param i_query A es_out query as defined in include/ninput.h
 * \param args a variable list of arguments for the query
 * \return VLC_SUCCESS or an error code
 */
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static int EsOutControl( es_out_t *out, int i_query, va_list args )
{
    es_out_sys_t *p_sys = out->p_sys;
    vlc_bool_t  b, *pb;
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    int         i, *pi;

    es_out_id_t *es;

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    switch( i_query )
    {
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        case ES_OUT_SET_ES_STATE:
            es = (es_out_id_t*) va_arg( args, es_out_id_t * );
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            b = (vlc_bool_t) va_arg( args, vlc_bool_t );
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            if( b && es->p_dec == NULL )
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            {
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                EsSelect( out, es );
                return es->p_dec ? VLC_SUCCESS : VLC_EGENERIC;
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            }
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            else if( !b && es->p_dec )
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            {
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                EsUnselect( out, es, es->p_pgrm == p_sys->p_pgrm );
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                return VLC_SUCCESS;
            }
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            return VLC_SUCCESS;

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        case ES_OUT_GET_ES_STATE:
            es = (es_out_id_t*) va_arg( args, es_out_id_t * );
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            pb = (vlc_bool_t*) va_arg( args, vlc_bool_t * );

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            *pb = es->p_dec ? VLC_TRUE : VLC_FALSE;
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            return VLC_SUCCESS;

        case ES_OUT_SET_ACTIVE:
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        {
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            b = (vlc_bool_t) va_arg( args, vlc_bool_t );
            p_sys->b_active = b;
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            /* Needed ? */
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            if( b )
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                var_SetBool( p_sys->p_input, "intf-change", VLC_TRUE );
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            return VLC_SUCCESS;
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        }
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        case ES_OUT_GET_ACTIVE:
            pb = (vlc_bool_t*) va_arg( args, vlc_bool_t * );
            *pb = p_sys->b_active;
            return VLC_SUCCESS;

        case ES_OUT_SET_MODE:
            i = (int) va_arg( args, int );
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            if( i == ES_OUT_MODE_NONE || i == ES_OUT_MODE_ALL ||
                i == ES_OUT_MODE_AUTO )
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            {
                p_sys->i_mode = i;

                /* Reapply policy mode */
                for( i = 0; i < p_sys->i_es; i++ )
                {
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                    if( p_sys->es[i]->p_dec )
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                    {
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                        EsUnselect( out, p_sys->es[i],
                                    p_sys->es[i]->p_pgrm == p_sys->p_pgrm );
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                    }
                }
                for( i = 0; i < p_sys->i_es; i++ )
                {
                    EsOutSelect( out, p_sys->es[i], VLC_FALSE );
                }
                return VLC_SUCCESS;
            }
            return VLC_EGENERIC;

        case ES_OUT_GET_MODE:
            pi = (int*) va_arg( args, int* );
            *pi = p_sys->i_mode;
            return VLC_SUCCESS;

        case ES_OUT_SET_ES:
            es = (es_out_id_t*) va_arg( args, es_out_id_t * );
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            /* Special case NULL, NULL+i_cat */
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            if( es == NULL )
            {
                for( i = 0; i < p_sys->i_es; i++ )
                {
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                    if( p_sys->es[i]->p_dec )
                        EsUnselect( out, p_sys->es[i],
                                    p_sys->es[i]->p_pgrm == p_sys->p_pgrm );
                }
            }
            else if( es == (es_out_id_t*)((uint8_t*)NULL+AUDIO_ES) )
            {
                for( i = 0; i < p_sys->i_es; i++ )
                {
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                    if( p_sys->es[i]->p_dec &&
                        p_sys->es[i]->fmt.i_cat == AUDIO_ES )
                        EsUnselect( out, p_sys->es[i],
                                    p_sys->es[i]->p_pgrm == p_sys->p_pgrm );
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                }
            }
            else if( es == (es_out_id_t*)((uint8_t*)NULL+VIDEO_ES) )
            {
                for( i = 0; i < p_sys->i_es; i++ )
                {
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                    if( p_sys->es[i]->p_dec &&
                        p_sys->es[i]->fmt.i_cat == VIDEO_ES )
                        EsUnselect( out, p_sys->es[i],
                                    p_sys->es[i]->p_pgrm == p_sys->p_pgrm );
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                }
            }
            else if( es == (es_out_id_t*)((uint8_t*)NULL+SPU_ES) )
            {
                for( i = 0; i < p_sys->i_es; i++ )
                {
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                    if( p_sys->es[i]->p_dec &&
                        p_sys->es[i]->fmt.i_cat == SPU_ES )
                        EsUnselect( out, p_sys->es[i],
                                    p_sys->es[i]->p_pgrm == p_sys->p_pgrm );
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                }
            }
            else
            {
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                for( i = 0; i < p_sys->i_es; i++ )
                {
                    if( es == p_sys->es[i] )
                    {
                        EsOutSelect( out, es, VLC_TRUE );
                        break;
                    }
                }
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            }
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            return VLC_SUCCESS;

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        case ES_OUT_SET_PCR:
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        case ES_OUT_SET_GROUP_PCR:
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        {
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            es_out_pgrm_t *p_pgrm = NULL;
            int            i_group = 0;
            int64_t        i_pcr;
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            if( i_query == ES_OUT_SET_PCR )
            {
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                p_pgrm = p_sys->p_pgrm;
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            }
            else
            {
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                int i;
                i_group = (int)va_arg( args, int );
                for( i = 0; i < p_sys->i_pgrm; i++ )
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                {
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                    if( p_sys->pgrm[i]->i_id == i_group )
                    {
                        p_pgrm = p_sys->pgrm[i];
                        break;
                    }
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                }
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            }
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            if( p_pgrm == NULL )
                p_pgrm = EsOutProgramAdd( out, i_group );   /* Create it */

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            i_pcr = (int64_t)va_arg( args, int64_t );
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            /* search program */
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            /* 11 is a vodoo trick to avoid non_pcr*9/100 to be null */
            input_ClockSetPCR( p_sys->p_input, &p_pgrm->clock,
                               (i_pcr + 11 ) * 9 / 100);
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            return VLC_SUCCESS;
        }

        case ES_OUT_RESET_PCR:
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            for( i = 0; i < p_sys->i_pgrm; i++ )
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            {
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                p_sys->pgrm[i]->clock.i_synchro_state =  SYNCHRO_REINIT;
                p_sys->pgrm[i]->clock.last_pts = 0;
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            }
            return VLC_SUCCESS;

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        case ES_OUT_GET_GROUP:
            pi = (int*) va_arg( args, int* );
            if( p_sys->p_pgrm )
                *pi = p_sys->p_pgrm->i_id;
            else
                *pi = -1;    /* FIXME */
            return VLC_SUCCESS;

        case ES_OUT_SET_GROUP:
        {
            int j;
            i = (int) va_arg( args, int );
            for( j = 0; j < p_sys->i_pgrm; j++ )
            {
                es_out_pgrm_t *p_pgrm = p_sys->pgrm[j];
                if( p_pgrm->i_id == i )
                {
                    EsOutProgramSelect( out, p_pgrm );
                    return VLC_SUCCESS;
                }
            }
            return VLC_EGENERIC;
        }

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        case ES_OUT_SET_FMT:
        {
            /* This ain't pretty but is need by some demuxers (eg. Ogg )
             * to update the p_extra data */
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            es_format_t *p_fmt;
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            es = (es_out_id_t*) va_arg( args, es_out_id_t * );
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            p_fmt = (es_format_t*) va_arg( args, es_format_t * );
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            if( es == NULL ) return VLC_EGENERIC;
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            if( p_fmt->i_extra )
            {
                es->fmt.i_extra = p_fmt->i_extra;
                es->fmt.p_extra = realloc( es->fmt.p_extra, p_fmt->i_extra );
                memcpy( es->fmt.p_extra, p_fmt->p_extra, p_fmt->i_extra );

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                if( !es->p_dec ) return VLC_SUCCESS;

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                es->p_dec->fmt_in.i_extra = p_fmt->i_extra;
                es->p_dec->fmt_in.p_extra =
                    realloc( es->p_dec->fmt_in.p_extra, p_fmt->i_extra );
                memcpy( es->p_dec->fmt_in.p_extra,
                        p_fmt->p_extra, p_fmt->i_extra );
            }

            return VLC_SUCCESS;
        }

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        default:
            msg_Err( p_sys->p_input, "unknown query in es_out_Control" );
            return VLC_EGENERIC;
    }
}
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/****************************************************************************
 * LanguageGetName: try to expend iso639 into plain name
 ****************************************************************************/
static char *LanguageGetName( const char *psz_code )
{
    const iso639_lang_t *pl;

    if( psz_code == NULL )
    {
        return strdup( "" );
    }

    if( strlen( psz_code ) == 2 )
    {
        pl = GetLang_1( psz_code );
    }
    else if( strlen( psz_code ) == 3 )
    {
        pl = GetLang_2B( psz_code );
        if( !strcmp( pl->psz_iso639_1, "??" ) )
        {
            pl = GetLang_2T( psz_code );
        }
    }
    else
    {
        return strdup( psz_code );
    }

    if( !strcmp( pl->psz_iso639_1, "??" ) )
    {
       return strdup( psz_code );
    }
    else
    {
        if( *pl->psz_native_name )
        {
            return strdup( pl->psz_native_name );
        }
        return strdup( pl->psz_eng_name );
    }
}
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/****************************************************************************
 * EsOutAddInfo:
 * - add meta info to the playlist item
 ****************************************************************************/
static void EsOutAddInfo( es_out_t *out, es_out_id_t *es )
{
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    es_out_sys_t   *p_sys = out->p_sys;
    input_thread_t *p_input = p_sys->p_input;
    es_format_t    *fmt = &es->fmt;
    char           *psz_cat;
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    /* Add stream info */
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    asprintf( &psz_cat, _("Stream %d"), out->p_sys->i_id - 1 );
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    input_Control( p_input, INPUT_ADD_INFO, psz_cat, _("Codec"),
                   "%.4s", (char*)&fmt->i_codec );

    input_Control( p_input, INPUT_ADD_INFO, psz_cat, _("Language"),
                   "%s", es->psz_description );

    /* Add information */
    switch( fmt->i_cat )
    {
    case AUDIO_ES:
        input_Control( p_input, INPUT_ADD_INFO, psz_cat,
                       _("Type"), _("Audio") );

        if( fmt->audio.i_channels > 0 )
            input_Control( p_input, INPUT_ADD_INFO, psz_cat, _("Channels"),
                           "%d", fmt->audio.i_channels );

        if( fmt->audio.i_rate > 0 )
            input_Control( p_input, INPUT_ADD_INFO, psz_cat, _("Sample rate"),
                           _("%d Hz"), fmt->audio.i_rate );

        if( fmt->audio.i_bitspersample > 0 )
            input_Control( p_input, INPUT_ADD_INFO, psz_cat,
                           _("Bits per sample"), "%d",
                           fmt->audio.i_bitspersample );

        if( fmt->i_bitrate > 0 )
            input_Control( p_input, INPUT_ADD_INFO, psz_cat, _("Bitrate"),
                           _("%d kb/s"), fmt->i_bitrate / 1000 );
        break;

    case VIDEO_ES:
        input_Control( p_input, INPUT_ADD_INFO, psz_cat,
                       _("Type"), _("Video") );

        if( fmt->video.i_width > 0 && fmt->video.i_height > 0 )
            input_Control( p_input, INPUT_ADD_INFO, psz_cat,
                           _("Resolution"), "%dx%d",
                           fmt->video.i_width, fmt->video.i_height );

        if( fmt->video.i_visible_width > 0 &&
            fmt->video.i_visible_height > 0 )
            input_Control( p_input, INPUT_ADD_INFO, psz_cat,
                           _("Display resolution"), "%dx%d",
                           fmt->video.i_visible_width,
                           fmt->video.i_visible_height);
        break;

    case SPU_ES:
        input_Control( p_input, INPUT_ADD_INFO, psz_cat,
                       _("Type"), _("Subtitle") );
        break;

    default:
        break;
    }
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    free( psz_cat );
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}