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vlc/lib/video.c

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/*****************************************************************************
* video.c: libvlc new API video functions
*****************************************************************************
* Copyright (C) 2005-2010 VLC authors and VideoLAN
*
* $Id$
*
* Authors: Clément Stenac <zorglub@videolan.org>
* Filippo Carone <littlejohn@videolan.org>
* 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 Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc/libvlc.h>
#include <vlc/libvlc_renderer_discoverer.h>
#include <vlc/libvlc_media.h>
#include <vlc/libvlc_media_player.h>
#include <vlc_common.h>
#include <vlc_modules.h>
#include <vlc_input.h>
#include <vlc_vout.h>
#include <vlc_url.h>
#include "libvlc_internal.h"
#include "media_player_internal.h"
#include <math.h>
#include <assert.h>
/*
* Remember to release the returned vout_thread_t.
*/
static vout_thread_t **GetVouts( libvlc_media_player_t *p_mi, size_t *n )
{
input_thread_t *p_input = libvlc_get_input_thread( p_mi );
if( !p_input )
{
*n = 0;
return NULL;
}
vout_thread_t **pp_vouts;
if (input_Control( p_input, INPUT_GET_VOUTS, &pp_vouts, n))
{
*n = 0;
pp_vouts = NULL;
}
vlc_object_release (p_input);
return pp_vouts;
}
static vout_thread_t *GetVout (libvlc_media_player_t *mp, size_t num)
{
vout_thread_t *p_vout = NULL;
size_t n;
vout_thread_t **pp_vouts = GetVouts (mp, &n);
if (pp_vouts == NULL)
goto err;
if (num < n)
p_vout = pp_vouts[num];
for (size_t i = 0; i < n; i++)
if (i != num)
vlc_object_release (pp_vouts[i]);
free (pp_vouts);
if (p_vout == NULL)
err:
libvlc_printerr ("Video output not active");
return p_vout;
}
/**********************************************************************
* Exported functions
**********************************************************************/
void libvlc_set_fullscreen( libvlc_media_player_t *p_mi, int b_fullscreen )
{
/* This will work even if the video is not currently active */
var_SetBool (p_mi, "fullscreen", !!b_fullscreen);
/* Apply to current video outputs (if any) */
size_t n;
vout_thread_t **pp_vouts = GetVouts (p_mi, &n);
for (size_t i = 0; i < n; i++)
{
var_SetBool (pp_vouts[i], "fullscreen", b_fullscreen);
vlc_object_release (pp_vouts[i]);
}
free (pp_vouts);
}
int libvlc_get_fullscreen( libvlc_media_player_t *p_mi )
{
return var_GetBool (p_mi, "fullscreen");
}
void libvlc_toggle_fullscreen( libvlc_media_player_t *p_mi )
{
bool b_fullscreen = var_ToggleBool (p_mi, "fullscreen");
/* Apply to current video outputs (if any) */
size_t n;
vout_thread_t **pp_vouts = GetVouts (p_mi, &n);
for (size_t i = 0; i < n; i++)
{
vout_thread_t *p_vout = pp_vouts[i];
var_SetBool (p_vout, "fullscreen", b_fullscreen);
vlc_object_release (p_vout);
}
free (pp_vouts);
}
void libvlc_video_set_key_input( libvlc_media_player_t *p_mi, unsigned on )
{
var_SetBool (p_mi, "keyboard-events", !!on);
}
void libvlc_video_set_mouse_input( libvlc_media_player_t *p_mi, unsigned on )
{
var_SetBool (p_mi, "mouse-events", !!on);
}
int
libvlc_video_take_snapshot( libvlc_media_player_t *p_mi, unsigned num,
const char *psz_filepath,
unsigned int i_width, unsigned int i_height )
{
assert( psz_filepath );
vout_thread_t *p_vout = GetVout (p_mi, num);
if (p_vout == NULL)
return -1;
/* FIXME: This is not atomic. All parameters should be passed at once
* (obviously _not_ with var_*()). Also, the libvlc object should not be
* used for the callbacks: that breaks badly if there are concurrent
* media players in the instance. */
var_Create( p_vout, "snapshot-width", VLC_VAR_INTEGER );
var_SetInteger( p_vout, "snapshot-width", i_width);
var_Create( p_vout, "snapshot-height", VLC_VAR_INTEGER );
var_SetInteger( p_vout, "snapshot-height", i_height );
var_Create( p_vout, "snapshot-path", VLC_VAR_STRING );
var_SetString( p_vout, "snapshot-path", psz_filepath );
var_Create( p_vout, "snapshot-format", VLC_VAR_STRING );
var_SetString( p_vout, "snapshot-format", "png" );
var_TriggerCallback( p_vout, "video-snapshot" );
vlc_object_release( p_vout );
return 0;
}
int libvlc_video_get_size( libvlc_media_player_t *p_mi, unsigned num,
unsigned *restrict px, unsigned *restrict py )
{
libvlc_media_track_info_t *info;
int ret = -1;
if (!p_mi->p_md)
return ret;
int infos = libvlc_media_get_tracks_info(p_mi->p_md, &info);
if (infos <= 0)
return ret;
for (int i = 0; i < infos; i++)
if (info[i].i_type == libvlc_track_video && num-- == 0) {
*px = info[i].u.video.i_width;
*py = info[i].u.video.i_height;
ret = 0;
break;
}
free(info);
return ret;
}
int libvlc_video_get_height( libvlc_media_player_t *p_mi )
{
unsigned width, height;
if (libvlc_video_get_size (p_mi, 0, &width, &height))
return 0;
return height;
}
int libvlc_video_get_width( libvlc_media_player_t *p_mi )
{
unsigned width, height;
if (libvlc_video_get_size (p_mi, 0, &width, &height))
return 0;
return width;
}
int libvlc_video_get_cursor( libvlc_media_player_t *mp, unsigned num,
int *restrict px, int *restrict py )
{
vout_thread_t *p_vout = GetVout (mp, num);
if (p_vout == NULL)
return -1;
var_GetCoords (p_vout, "mouse-moved", px, py);
vlc_object_release (p_vout);
return 0;
}
unsigned libvlc_media_player_has_vout( libvlc_media_player_t *p_mi )
{
size_t n;
vout_thread_t **pp_vouts = GetVouts (p_mi, &n);
for (size_t i = 0; i < n; i++)
vlc_object_release (pp_vouts[i]);
free (pp_vouts);
return n;
}
float libvlc_video_get_scale( libvlc_media_player_t *mp )
{
float f_scale = var_GetFloat (mp, "zoom");
if (var_GetBool (mp, "autoscale"))
f_scale = 0.f;
return f_scale;
}
void libvlc_video_set_scale( libvlc_media_player_t *p_mp, float f_scale )
{
if (isfinite(f_scale) && f_scale != 0.f)
var_SetFloat (p_mp, "zoom", f_scale);
var_SetBool (p_mp, "autoscale", f_scale == 0.f);
/* Apply to current video outputs (if any) */
size_t n;
vout_thread_t **pp_vouts = GetVouts (p_mp, &n);
for (size_t i = 0; i < n; i++)
{
vout_thread_t *p_vout = pp_vouts[i];
if (isfinite(f_scale) && f_scale != 0.f)
var_SetFloat (p_vout, "zoom", f_scale);
var_SetBool (p_vout, "autoscale", f_scale == 0.f);
vlc_object_release (p_vout);
}
free (pp_vouts);
}
char *libvlc_video_get_aspect_ratio( libvlc_media_player_t *p_mi )
{
return var_GetNonEmptyString (p_mi, "aspect-ratio");
}
void libvlc_video_set_aspect_ratio( libvlc_media_player_t *p_mi,
const char *psz_aspect )
{
if (psz_aspect == NULL)
psz_aspect = "";
var_SetString (p_mi, "aspect-ratio", psz_aspect);
size_t n;
vout_thread_t **pp_vouts = GetVouts (p_mi, &n);
for (size_t i = 0; i < n; i++)
{
vout_thread_t *p_vout = pp_vouts[i];
var_SetString (p_vout, "aspect-ratio", psz_aspect);
vlc_object_release (p_vout);
}
free (pp_vouts);
}
libvlc_video_viewpoint_t *libvlc_video_new_viewpoint(void)
{
libvlc_video_viewpoint_t *p_vp = malloc(sizeof *p_vp);
if (unlikely(p_vp == NULL))
return NULL;
p_vp->f_yaw = p_vp->f_pitch = p_vp->f_roll = p_vp->f_field_of_view = 0.0f;
return p_vp;
}
int libvlc_video_update_viewpoint( libvlc_media_player_t *p_mi,
const libvlc_video_viewpoint_t *p_viewpoint,
bool b_absolute )
{
vlc_viewpoint_t update = {
.yaw = p_viewpoint->f_yaw,
.pitch = p_viewpoint->f_pitch,
.roll = p_viewpoint->f_roll,
.fov = p_viewpoint->f_field_of_view,
};
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
if( p_input_thread != NULL )
{
if( input_UpdateViewpoint( p_input_thread, &update,
b_absolute ) != VLC_SUCCESS )
{
vlc_object_release( p_input_thread );
return -1;
}
vlc_object_release( p_input_thread );
return 0;
}
/* Save the viewpoint in case the input is not created yet */
if( !b_absolute )
{
p_mi->viewpoint.yaw += update.yaw;
p_mi->viewpoint.pitch += update.pitch;
p_mi->viewpoint.roll += update.roll;
p_mi->viewpoint.fov += update.fov;
}
else
p_mi->viewpoint = update;
vlc_viewpoint_clip( &p_mi->viewpoint );
return 0;
}
int libvlc_video_get_spu( libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
if( !p_input_thread )
{
libvlc_printerr( "No active input" );
return -1;
}
int i_spu = var_GetInteger( p_input_thread, "spu-es" );
vlc_object_release( p_input_thread );
return i_spu;
}
int libvlc_video_get_spu_count( libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
int i_spu_count;
if( !p_input_thread )
return 0;
i_spu_count = var_CountChoices( p_input_thread, "spu-es" );
vlc_object_release( p_input_thread );
return i_spu_count;
}
libvlc_track_description_t *
libvlc_video_get_spu_description( libvlc_media_player_t *p_mi )
{
return libvlc_get_track_description( p_mi, "spu-es" );
}
int libvlc_video_set_spu( libvlc_media_player_t *p_mi, int i_spu )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
vlc_value_t list;
int i_ret = -1;
if( !p_input_thread )
return -1;
var_Change (p_input_thread, "spu-es", VLC_VAR_GETCHOICES, &list, NULL);
for (int i = 0; i < list.p_list->i_count; i++)
{
if( i_spu == list.p_list->p_values[i].i_int )
{
if( var_SetInteger( p_input_thread, "spu-es", i_spu ) < 0 )
break;
i_ret = 0;
goto end;
}
}
libvlc_printerr( "Track identifier not found" );
end:
vlc_object_release (p_input_thread);
var_FreeList (&list, NULL);
return i_ret;
}
int libvlc_video_set_subtitle_file( libvlc_media_player_t *p_mi,
const char *psz_subtitle )
{
input_thread_t *p_input_thread = libvlc_get_input_thread ( p_mi );
bool b_ret = false;
if( p_input_thread )
{
char* psz_mrl = vlc_path2uri( psz_subtitle, NULL );
if( psz_mrl )
{
if( !input_AddSlave( p_input_thread, SLAVE_TYPE_SPU, psz_mrl,
true, false, false ) )
b_ret = true;
free( psz_mrl );
}
vlc_object_release( p_input_thread );
}
return b_ret;
}
int64_t libvlc_video_get_spu_delay( libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
int64_t val = 0;
if( p_input_thread )
{
val = var_GetInteger( p_input_thread, "spu-delay" );
vlc_object_release( p_input_thread );
}
else
{
libvlc_printerr( "No active input" );
}
return val;
}
int libvlc_video_set_spu_delay( libvlc_media_player_t *p_mi,
int64_t i_delay )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
int ret = -1;
if( p_input_thread )
{
var_SetInteger( p_input_thread, "spu-delay", i_delay );
vlc_object_release( p_input_thread );
ret = 0;
}
else
{
libvlc_printerr( "No active input" );
}
return ret;
}
libvlc_track_description_t *
libvlc_video_get_title_description( libvlc_media_player_t *p_mi )
{
return libvlc_get_track_description( p_mi, "title" );
}
libvlc_track_description_t *
libvlc_video_get_chapter_description( libvlc_media_player_t *p_mi,
int i_title )
{
char psz_title[sizeof ("title ") + 3 * sizeof (int)];
sprintf( psz_title, "title %2u", i_title );
return libvlc_get_track_description( p_mi, psz_title );
}
char *libvlc_video_get_crop_geometry (libvlc_media_player_t *p_mi)
{
return var_GetNonEmptyString (p_mi, "crop");
}
void libvlc_video_set_crop_geometry( libvlc_media_player_t *p_mi,
const char *psz_geometry )
{
if (psz_geometry == NULL)
psz_geometry = "";
var_SetString (p_mi, "crop", psz_geometry);
size_t n;
vout_thread_t **pp_vouts = GetVouts (p_mi, &n);
for (size_t i = 0; i < n; i++)
{
vout_thread_t *p_vout = pp_vouts[i];
var_SetString (p_vout, "crop", psz_geometry);
vlc_object_release (p_vout);
}
free (pp_vouts);
}
int libvlc_video_get_teletext( libvlc_media_player_t *p_mi )
{
return var_GetInteger (p_mi, "vbi-page");
}
static void teletext_enable( input_thread_t *p_input_thread, bool b_enable )
{
if( b_enable )
{
vlc_value_t list;
if( !var_Change( p_input_thread, "teletext-es", VLC_VAR_GETCHOICES,
&list, NULL ) )
{
if( list.p_list->i_count > 0 )
var_SetInteger( p_input_thread, "spu-es",
list.p_list->p_values[0].i_int );
var_FreeList( &list, NULL );
}
}
else
var_SetInteger( p_input_thread, "spu-es", -1 );
}
void libvlc_video_set_teletext( libvlc_media_player_t *p_mi, int i_page )
{
input_thread_t *p_input_thread;
vlc_object_t *p_zvbi = NULL;
int telx;
bool b_key = false;
if( i_page >= 0 && i_page < 1000 )
var_SetInteger( p_mi, "vbi-page", i_page );
else if( i_page >= 1000 )
{
switch (i_page)
{
case libvlc_teletext_key_red:
case libvlc_teletext_key_green:
case libvlc_teletext_key_yellow:
case libvlc_teletext_key_blue:
case libvlc_teletext_key_index:
b_key = true;
break;
default:
libvlc_printerr("Invalid key action");
return;
}
}
else
{
libvlc_printerr("Invalid page number");
return;
}
p_input_thread = libvlc_get_input_thread( p_mi );
if( !p_input_thread ) return;
if( var_CountChoices( p_input_thread, "teletext-es" ) <= 0 )
{
vlc_object_release( p_input_thread );
return;
}
if( i_page == 0 )
{
teletext_enable( p_input_thread, false );
}
else
{
telx = var_GetInteger( p_input_thread, "teletext-es" );
if( telx >= 0 )
{
if( input_GetEsObjects( p_input_thread, telx, &p_zvbi, NULL, NULL )
== VLC_SUCCESS )
{
var_SetInteger( p_zvbi, "vbi-page", i_page );
vlc_object_release( p_zvbi );
}
}
else if (!b_key)
{
/* the "vbi-page" will be selected on es creation */
teletext_enable( p_input_thread, true );
}
else
libvlc_printerr("Key action sent while the teletext is disabled");
}
vlc_object_release( p_input_thread );
}
void libvlc_toggle_teletext( libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread;
p_input_thread = libvlc_get_input_thread(p_mi);
if( !p_input_thread ) return;
if( var_CountChoices( p_input_thread, "teletext-es" ) <= 0 )
{
vlc_object_release( p_input_thread );
return;
}
const bool b_selected = var_GetInteger( p_input_thread, "teletext-es" ) >= 0;
teletext_enable( p_input_thread, !b_selected );
vlc_object_release( p_input_thread );
}
int libvlc_video_get_track_count( libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
int i_track_count;
if( !p_input_thread )
return -1;
i_track_count = var_CountChoices( p_input_thread, "video-es" );
vlc_object_release( p_input_thread );
return i_track_count;
}
libvlc_track_description_t *
libvlc_video_get_track_description( libvlc_media_player_t *p_mi )
{
return libvlc_get_track_description( p_mi, "video-es" );
}
int libvlc_video_get_track( libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
if( !p_input_thread )
return -1;
int id = var_GetInteger( p_input_thread, "video-es" );
vlc_object_release( p_input_thread );
return id;
}
int libvlc_video_set_track( libvlc_media_player_t *p_mi, int i_track )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
vlc_value_t val_list;
int i_ret = -1;
if( !p_input_thread )
return -1;
var_Change( p_input_thread, "video-es", VLC_VAR_GETCHOICES, &val_list, NULL );
for( int i = 0; i < val_list.p_list->i_count; i++ )
{
if( i_track == val_list.p_list->p_values[i].i_int )
{
if( var_SetInteger( p_input_thread, "video-es", i_track ) < 0 )
break;
i_ret = 0;
goto end;
}
}
libvlc_printerr( "Track identifier not found" );
end:
var_FreeList( &val_list, NULL );
vlc_object_release( p_input_thread );
return i_ret;
}
/******************************************************************************
* libvlc_video_set_deinterlace : enable deinterlace
*****************************************************************************/
void libvlc_video_set_deinterlace( libvlc_media_player_t *p_mi,
const char *psz_mode )
{
if (psz_mode == NULL)
psz_mode = "";
if (*psz_mode
&& strcmp (psz_mode, "blend") && strcmp (psz_mode, "bob")
&& strcmp (psz_mode, "discard") && strcmp (psz_mode, "linear")
&& strcmp (psz_mode, "mean") && strcmp (psz_mode, "x")
&& strcmp (psz_mode, "yadif") && strcmp (psz_mode, "yadif2x")
&& strcmp (psz_mode, "phosphor") && strcmp (psz_mode, "ivtc"))
return;
if (*psz_mode)
{
var_SetString (p_mi, "deinterlace-mode", psz_mode);
var_SetInteger (p_mi, "deinterlace", 1);
}
else
var_SetInteger (p_mi, "deinterlace", 0);
size_t n;
vout_thread_t **pp_vouts = GetVouts (p_mi, &n);
for (size_t i = 0; i < n; i++)
{
vout_thread_t *p_vout = pp_vouts[i];
if (*psz_mode)
{
var_SetString (p_vout, "deinterlace-mode", psz_mode);
var_SetInteger (p_vout, "deinterlace", 1);
}
else
var_SetInteger (p_vout, "deinterlace", 0);
vlc_object_release (p_vout);
}
free (pp_vouts);
}
/* ************** */
/* module helpers */
/* ************** */
static int get_filter_str( vlc_object_t *p_parent, const char *psz_name,
bool b_add, const char **ppsz_filter_type,
char **ppsz_filter_value)
{
char *psz_parser;
char *psz_string;
const char *psz_filter_type;
module_t *p_obj = module_find( psz_name );
if( !p_obj )
{
msg_Err( p_parent, "Unable to find filter module \"%s\".", psz_name );
return VLC_EGENERIC;
}
if( module_provides( p_obj, "video filter" ) )
{
psz_filter_type = "video-filter";
}
else if( module_provides( p_obj, "sub source" ) )
{
psz_filter_type = "sub-source";
}
else if( module_provides( p_obj, "sub filter" ) )
{
psz_filter_type = "sub-filter";
}
else
{
msg_Err( p_parent, "Unknown video filter type." );
return VLC_EGENERIC;
}
psz_string = var_GetString( p_parent, psz_filter_type );
/* Todo : Use some generic chain manipulation functions */
if( !psz_string ) psz_string = strdup("");
psz_parser = strstr( psz_string, psz_name );
if( b_add )
{
if( !psz_parser )
{
psz_parser = psz_string;
if( asprintf( &psz_string, (*psz_string) ? "%s:%s" : "%s%s",
psz_string, psz_name ) == -1 )
{
free( psz_parser );
return VLC_EGENERIC;
}
free( psz_parser );
}
else
{
free( psz_string );
return VLC_EGENERIC;
}
}
else
{
if( psz_parser )
{
memmove( psz_parser, psz_parser + strlen(psz_name) +
(*(psz_parser + strlen(psz_name)) == ':' ? 1 : 0 ),
strlen(psz_parser + strlen(psz_name)) + 1 );
/* Remove trailing : : */
if( *(psz_string+strlen(psz_string ) -1 ) == ':' )
*(psz_string+strlen(psz_string ) -1 ) = '\0';
}
else
{
free( psz_string );
return VLC_EGENERIC;
}
}
*ppsz_filter_type = psz_filter_type;
*ppsz_filter_value = psz_string;
return VLC_SUCCESS;
}
static bool find_sub_source_by_name( libvlc_media_player_t *p_mi, const char *restrict name )
{
vout_thread_t *vout = GetVout( p_mi, 0 );
if (!vout)
return false;
char *psz_sources = var_GetString( vout, "sub-source" );
if( !psz_sources )
{
libvlc_printerr( "%s not enabled", name );
vlc_object_release( vout );
return false;
}
/* Find 'name' */
char *p = strstr( psz_sources, name );
free( psz_sources );
vlc_object_release( vout );
return (p != NULL);
}
typedef const struct {
const char name[20];
unsigned type;
} opt_t;
static void
set_value( libvlc_media_player_t *p_mi, const char *restrict name,
const opt_t *restrict opt, unsigned i_expected_type,
const vlc_value_t *val, bool b_sub_source )
{
if( !opt ) return;
int i_type = opt->type;
vlc_value_t new_val = *val;
const char *psz_opt_name = opt->name;
switch( i_type )
{
case 0: /* the enabler */
{
int i_ret = get_filter_str( VLC_OBJECT( p_mi ), opt->name, val->i_int,
&psz_opt_name, &new_val.psz_string );
if( i_ret != VLC_SUCCESS )
return;
i_type = VLC_VAR_STRING;
break;
}
case VLC_VAR_INTEGER:
case VLC_VAR_FLOAT:
case VLC_VAR_STRING:
if( i_expected_type != opt->type )
{
libvlc_printerr( "Invalid argument to %s", name );
return;
}
break;
default:
libvlc_printerr( "Invalid argument to %s", name );
return;
}
/* Set the new value to the media player. Next vouts created from this
* media player will inherit this new value */
var_SetChecked( p_mi, psz_opt_name, i_type, new_val );
/* Set the new value to every loaded vouts */
size_t i_vout_count;
vout_thread_t **pp_vouts = GetVouts( p_mi, &i_vout_count );
for( size_t i = 0; i < i_vout_count; ++i )
{
var_SetChecked( pp_vouts[i], psz_opt_name, i_type, new_val );
if( b_sub_source )
var_TriggerCallback( pp_vouts[i], "sub-source" );
vlc_object_release( pp_vouts[i] );
}
if( opt->type == 0 )
free( new_val.psz_string );
}
static int
get_int( libvlc_media_player_t *p_mi, const char *restrict name,
const opt_t *restrict opt )
{
if( !opt ) return 0;
switch( opt->type )
{
case 0: /* the enabler */
{
bool b_enabled = find_sub_source_by_name( p_mi, name );
return b_enabled ? 1 : 0;
}
case VLC_VAR_INTEGER:
return var_GetInteger(p_mi, opt->name);
case VLC_VAR_FLOAT:
return lroundf(var_GetFloat(p_mi, opt->name));
default:
libvlc_printerr( "Invalid argument to %s in %s", name, "get int" );
return 0;
}
}
static float
get_float( libvlc_media_player_t *p_mi, const char *restrict name,
const opt_t *restrict opt )
{
if( !opt ) return 0.0;
if( opt->type != VLC_VAR_FLOAT )
{
libvlc_printerr( "Invalid argument to %s in %s", name, "get float" );
return 0.0;
}
return var_GetFloat( p_mi, opt->name );
}
static char *
get_string( libvlc_media_player_t *p_mi, const char *restrict name,
const opt_t *restrict opt )
{
if( !opt ) return NULL;
if( opt->type != VLC_VAR_STRING )
{
libvlc_printerr( "Invalid argument to %s in %s", name, "get string" );
return NULL;
}
return var_GetString( p_mi, opt->name );
}
static const opt_t *
marq_option_bynumber(unsigned option)
{
static const opt_t optlist[] =
{
{ "marq", 0 },
{ "marq-marquee", VLC_VAR_STRING },
{ "marq-color", VLC_VAR_INTEGER },
{ "marq-opacity", VLC_VAR_INTEGER },
{ "marq-position", VLC_VAR_INTEGER },
{ "marq-refresh", VLC_VAR_INTEGER },
{ "marq-size", VLC_VAR_INTEGER },
{ "marq-timeout", VLC_VAR_INTEGER },
{ "marq-x", VLC_VAR_INTEGER },
{ "marq-y", VLC_VAR_INTEGER },
};
enum { num_opts = sizeof(optlist) / sizeof(*optlist) };
const opt_t *r = option < num_opts ? optlist+option : NULL;
if( !r )
libvlc_printerr( "Unknown marquee option" );
return r;
}
/*****************************************************************************
* libvlc_video_get_marquee_int : get a marq option value
*****************************************************************************/
int libvlc_video_get_marquee_int( libvlc_media_player_t *p_mi,
unsigned option )
{
return get_int( p_mi, "marq", marq_option_bynumber(option) );
}
/*****************************************************************************
* libvlc_video_get_marquee_string : get a marq option value
*****************************************************************************/
char * libvlc_video_get_marquee_string( libvlc_media_player_t *p_mi,
unsigned option )
{
return get_string( p_mi, "marq", marq_option_bynumber(option) );
}
/*****************************************************************************
* libvlc_video_set_marquee_int: enable, disable or set an int option
*****************************************************************************/
void libvlc_video_set_marquee_int( libvlc_media_player_t *p_mi,
unsigned option, int value )
{
set_value( p_mi, "marq", marq_option_bynumber(option), VLC_VAR_INTEGER,
&(vlc_value_t) { .i_int = value }, true );
}
/*****************************************************************************
* libvlc_video_set_marquee_string: set a string option
*****************************************************************************/
void libvlc_video_set_marquee_string( libvlc_media_player_t *p_mi,
unsigned option, const char * value )
{
set_value( p_mi, "marq", marq_option_bynumber(option), VLC_VAR_STRING,
&(vlc_value_t){ .psz_string = (char *)value }, true );
}
/* logo module support */
static const opt_t *
logo_option_bynumber( unsigned option )
{
static const opt_t vlogo_optlist[] =
/* depends on libvlc_video_logo_option_t */
{
{ "logo", 0 },
{ "logo-file", VLC_VAR_STRING },
{ "logo-x", VLC_VAR_INTEGER },
{ "logo-y", VLC_VAR_INTEGER },
{ "logo-delay", VLC_VAR_INTEGER },
{ "logo-repeat", VLC_VAR_INTEGER },
{ "logo-opacity", VLC_VAR_INTEGER },
{ "logo-position", VLC_VAR_INTEGER },
};
enum { num_vlogo_opts = sizeof(vlogo_optlist) / sizeof(*vlogo_optlist) };
const opt_t *r = option < num_vlogo_opts ? vlogo_optlist+option : NULL;
if( !r )
libvlc_printerr( "Unknown logo option" );
return r;
}
void libvlc_video_set_logo_string( libvlc_media_player_t *p_mi,
unsigned option, const char *psz_value )
{
set_value( p_mi,"logo",logo_option_bynumber(option), VLC_VAR_STRING,
&(vlc_value_t){ .psz_string = (char *)psz_value }, true );
}
void libvlc_video_set_logo_int( libvlc_media_player_t *p_mi,
unsigned option, int value )
{
set_value( p_mi, "logo", logo_option_bynumber(option), VLC_VAR_INTEGER,
&(vlc_value_t) { .i_int = value }, true );
}
int libvlc_video_get_logo_int( libvlc_media_player_t *p_mi,
unsigned option )
{
return get_int( p_mi, "logo", logo_option_bynumber(option) );
}
/* adjust module support */
static const opt_t *
adjust_option_bynumber( unsigned option )
{
static const opt_t optlist[] =
{
{ "adjust", 0 },
{ "contrast", VLC_VAR_FLOAT },
{ "brightness", VLC_VAR_FLOAT },
{ "hue", VLC_VAR_FLOAT },
{ "saturation", VLC_VAR_FLOAT },
{ "gamma", VLC_VAR_FLOAT },
};
enum { num_opts = sizeof(optlist) / sizeof(*optlist) };
const opt_t *r = option < num_opts ? optlist+option : NULL;
if( !r )
libvlc_printerr( "Unknown adjust option" );
return r;
}
void libvlc_video_set_adjust_int( libvlc_media_player_t *p_mi,
unsigned option, int value )
{
set_value( p_mi, "adjust", adjust_option_bynumber(option), VLC_VAR_INTEGER,
&(vlc_value_t) { .i_int = value }, false );
}
int libvlc_video_get_adjust_int( libvlc_media_player_t *p_mi,
unsigned option )
{
return get_int( p_mi, "adjust", adjust_option_bynumber(option) );
}
void libvlc_video_set_adjust_float( libvlc_media_player_t *p_mi,
unsigned option, float value )
{
set_value( p_mi, "adjust", adjust_option_bynumber(option), VLC_VAR_FLOAT,
&(vlc_value_t) { .f_float = value }, false );
}
float libvlc_video_get_adjust_float( libvlc_media_player_t *p_mi,
unsigned option )
{
return get_float( p_mi, "adjust", adjust_option_bynumber(option) );
}
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