video.c

VLC Player Source Code

/*****************************************************************************
 * video.c: libvlc new API video functions
 *****************************************************************************
 * Copyright (C) 2005 the VideoLAN team
 *
 * $Id$
 *
 * Authors: Cl�ent Stenac <[e-mail]>
 *          Filippo Carone <[e-mail]>
 *          Jean-Paul Saman <jpsaman _at_ m2x _dot_ nl>
 *          Damien Fouilleul <damienf a_t videolan dot org>
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#include "libvlc_internal.h"

#include <vlc/libvlc.h>
#include <vlc_input.h>
#include <vlc_vout.h>

/*
 * Remember to release the returned vout_thread_t.
 */
static vout_thread_t *GetVout( libvlc_media_player_t *p_mi,
                               libvlc_exception_t *p_exception )
{
    input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi, p_exception );
    vout_thread_t *p_vout = NULL;

    if( p_input_thread )
    {
        p_vout = vlc_object_find( p_input_thread, VLC_OBJECT_VOUT, FIND_CHILD );
        if( !p_vout )
        {
            libvlc_exception_raise( p_exception, "No active video output" );
        }
        vlc_object_release( p_input_thread );
    }
    return p_vout;
}

/**********************************************************************
 * Exported functions
 **********************************************************************/

void libvlc_set_fullscreen( libvlc_media_player_t *p_mi, int b_fullscreen,
                            libvlc_exception_t *p_e )
{
    /* We only work on the first vout */
    vout_thread_t *p_vout = GetVout( p_mi, p_e );

    /* GetVout will raise the exception for us */
    if( !p_vout ) return;

    var_SetBool( p_vout, "fullscreen", b_fullscreen );

    vlc_object_release( p_vout );
}

int libvlc_get_fullscreen( libvlc_media_player_t *p_mi,
                            libvlc_exception_t *p_e )
{
    /* We only work on the first vout */
    vout_thread_t *p_vout = GetVout( p_mi, p_e );
    int i_ret;

    /* GetVout will raise the exception for us */
    if( !p_vout ) return 0;

    i_ret = var_GetBool( p_vout, "fullscreen" );

    vlc_object_release( p_vout );

    return i_ret;
}

void libvlc_toggle_fullscreen( libvlc_media_player_t *p_mi,
                               libvlc_exception_t *p_e )
{
    /* We only work on the first vout */
    vout_thread_t *p_vout = GetVout( p_mi, p_e );
    bool ret;

    /* GetVout will raise the exception for us */
    if( !p_vout ) return;

    ret = var_GetBool( p_vout, "fullscreen" );
    var_SetBool( p_vout, "fullscreen", !ret );

    vlc_object_release( p_vout );
}

void
libvlc_video_take_snapshot( libvlc_media_player_t *p_mi, char *psz_filepath,
        unsigned int i_width, unsigned int i_height, libvlc_exception_t *p_e )
{
    vout_thread_t *p_vout = GetVout( p_mi, p_e );
    input_thread_t *p_input_thread;

    /* GetVout will raise the exception for us */
    if( !p_vout ) return;

    if( !psz_filepath )
    {
        libvlc_exception_raise( p_e, "filepath is null" );
        return;
    }

    var_SetInteger( p_vout, "snapshot-width", i_width );
    var_SetInteger( p_vout, "snapshot-height", i_height );

    p_input_thread = p_mi->p_input_thread;
    if( !p_mi->p_input_thread )
    {
        libvlc_exception_raise( p_e, "Input does not exist" );
        return;
    }

    var_SetString( p_vout, "snapshot-path", psz_filepath );
    var_SetString( p_vout, "snapshot-format", "png" );

    vout_Control( p_vout, VOUT_SNAPSHOT );
    vlc_object_release( p_vout );
}

int libvlc_video_get_height( libvlc_media_player_t *p_mi,
                             libvlc_exception_t *p_e )
{
    int height;

    vout_thread_t *p_vout = GetVout( p_mi, p_e );
    if( !p_vout ) return 0;

    height = p_vout->i_window_height;

    vlc_object_release( p_vout );

    return height;
}

int libvlc_video_get_width( libvlc_media_player_t *p_mi,
                            libvlc_exception_t *p_e )
{
    int width;

    vout_thread_t *p_vout = GetVout( p_mi, p_e );
    if( !p_vout ) return 0;

    width = p_vout->i_window_width;

    vlc_object_release( p_vout );

    return width;
}

int libvlc_media_player_has_vout( libvlc_media_player_t *p_mi,
                                     libvlc_exception_t *p_e )
{
    input_thread_t *p_input_thread = libvlc_get_input_thread(p_mi, p_e);
    bool has_vout = false;

    if( p_input_thread )
    {
        vout_thread_t *p_vout;

        p_vout = vlc_object_find( p_input_thread, VLC_OBJECT_VOUT, FIND_CHILD );
        if( p_vout )
        {
            has_vout = true;
            vlc_object_release( p_vout );
        }
        vlc_object_release( p_input_thread );
    }
    return has_vout;
}

int libvlc_video_reparent( libvlc_media_player_t *p_mi, libvlc_drawable_t d,
                           libvlc_exception_t *p_e )
{
    vout_thread_t *p_vout = GetVout( p_mi, p_e );

    if( p_vout )
    {
        vout_Control( p_vout , VOUT_REPARENT, d);
        vlc_object_release( p_vout );
    }
    return 0;
}

void libvlc_video_resize( libvlc_media_player_t *p_mi, int width, int height, libvlc_exception_t *p_e )
{
    vout_thread_t *p_vout = GetVout( p_mi, p_e );
    if( p_vout )
    {
        vout_Control( p_vout, VOUT_SET_SIZE, width, height );
        vlc_object_release( p_vout );
    }
}

void libvlc_video_redraw_rectangle( libvlc_media_player_t *p_mi,
                           const libvlc_rectangle_t *area,
                           libvlc_exception_t *p_e )
{
    if( (NULL != area)
     && ((area->bottom - area->top) > 0)
     && ((area->right - area->left) > 0) )
    {
        vout_thread_t *p_vout = GetVout( p_mi, p_e );
        if( p_vout )
        {
            /* tell running vout to redraw area */
            vout_Control( p_vout , VOUT_REDRAW_RECT,
                               area->top, area->left, area->bottom, area->right );
            vlc_object_release( p_vout );
        }
    }
}

/* global video settings */

/* Deprecated use libvlc_media_player_set_drawable() */
void libvlc_video_set_parent( libvlc_instance_t *p_instance, libvlc_drawable_t d,
                              libvlc_exception_t *p_e )
{
    /* set as default for future vout instances */
    var_SetInteger(p_instance->p_libvlc_int, "drawable", (int)d);

    libvlc_media_player_t *p_mi = libvlc_playlist_get_media_player(p_instance, p_e);
    if( p_mi )
    {
        libvlc_media_player_set_drawable( p_mi, d, p_e );
        libvlc_media_player_release(p_mi);
    }
}

/* Deprecated use libvlc_media_player_get_drawable() */
libvlc_drawable_t libvlc_video_get_parent( libvlc_instance_t *p_instance, libvlc_exception_t *p_e )
{
    VLC_UNUSED(p_e);

    libvlc_drawable_t result;
 
    result = var_GetInteger( p_instance->p_libvlc_int, "drawable" );
 
    return result;
}


void libvlc_video_set_size( libvlc_instance_t *p_instance, int width, int height,
                           libvlc_exception_t *p_e )
{
    /* set as default for future vout instances */
    config_PutInt(p_instance->p_libvlc_int, "width", width);
    config_PutInt(p_instance->p_libvlc_int, "height", height);