/*****************************************************************************
* video_output.c : video output thread
*
* This module describes the programming interface for video output threads.
* It includes functions allowing to open a new thread, send pictures to a
* thread, and destroy a previously oppened video output thread.
*****************************************************************************
* Copyright (C) 2000-2007 the VideoLAN team
* $Id$
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Gildas Bazin <gbazin@videolan.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.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "vlc_common.h"
#include <stdlib.h> /* free() */
#include <string.h>
#ifdef HAVE_SYS_TIMES_H
# include <sys/times.h>
#endif
#include "vlc_vout.h"
#include "vlc_filter.h"
#include "vlc_osd.h"
#if defined( __APPLE__ )
/* Include darwin_specific.h here if needed */
#endif
/** FIXME This is quite ugly but needed while we don't have counters
* helpers */
#include "input_internal.h"
#include "modules.h"
#include <assert.h>
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int InitThread ( vout_thread_t * );
static void* RunThread ( vlc_object_t * );
static void ErrorThread ( vout_thread_t * );
static void CleanThread ( vout_thread_t * );
static void EndThread ( vout_thread_t * );
static void AspectRatio ( int, int *, int * );
static void VideoFormatImportRgb( video_format_t *, const picture_heap_t * );
static void PictureHeapFixRgb( picture_heap_t * );
static void vout_Destructor ( vlc_object_t * p_this );
/* Object variables callbacks */
static int DeinterlaceCallback( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
static int FilterCallback( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
static int VideoFilter2Callback( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
/* From vout_intf.c */
int vout_Snapshot( vout_thread_t *, picture_t * );
/* Display media title in OSD */
static void DisplayTitleOnOSD( vout_thread_t *p_vout );
/*****************************************************************************
* Video Filter2 functions
*****************************************************************************/
static picture_t *video_new_buffer_filter( filter_t *p_filter )
{
picture_t *p_picture;
vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;
p_picture = vout_CreatePicture( p_vout, 0, 0, 0 );
return p_picture;
}
static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
{
vout_DestroyPicture( (vout_thread_t*)p_filter->p_owner, p_pic );
}
static int video_filter_buffer_allocation_init( filter_t *p_filter, void *p_data )
{
p_filter->pf_vout_buffer_new = video_new_buffer_filter;
p_filter->pf_vout_buffer_del = video_del_buffer_filter;
p_filter->p_owner = p_data; /* p_vout */
return VLC_SUCCESS;
}
/*****************************************************************************
* vout_Request: find a video output thread, create one, or destroy one.
*****************************************************************************
* This function looks for a video output thread matching the current
* properties. If not found, it spawns a new one.
*****************************************************************************/
vout_thread_t *__vout_Request( vlc_object_t *p_this, vout_thread_t *p_vout,
video_format_t *p_fmt )
{
if( !p_fmt )
{
/* Video output is no longer used.
* TODO: support for reusing video outputs with proper _thread-safe_
* reference handling. */
if( p_vout )
vout_CloseAndRelease( p_vout );
return NULL;
}
/* If a video output was provided, lock it, otherwise look for one. */
if( p_vout )
{
vlc_object_yield( p_vout );
}
/* TODO: find a suitable unused video output */
/* If we now have a video output, check it has the right properties */
if( p_vout )
{
char *psz_filter_chain;
vlc_value_t val;
/* We don't directly check for the "vout-filter" variable for obvious
* performance reasons. */
if( p_vout->b_filter_change )
{
var_Get( p_vout, "vout-filter", &val );
psz_filter_chain = val.psz_string;
if( psz_filter_chain && !*psz_filter_chain )
{
free( psz_filter_chain );
psz_filter_chain = NULL;
}
if( p_vout->psz_filter_chain && !*p_vout->psz_filter_chain )
{
free( p_vout->psz_filter_chain );
p_vout->psz_filter_chain = NULL;
}
if( !psz_filter_chain && !p_vout->psz_filter_chain )
{
p_vout->b_filter_change = false;
}
free( psz_filter_chain );
}
if( ( p_vout->fmt_render.i_width != p_fmt->i_width ) ||
( p_vout->fmt_render.i_height != p_fmt->i_height ) ||
( p_vout->fmt_render.i_aspect != p_fmt->i_aspect ) ||
p_vout->b_filter_change )
{
/* We are not interested in this format, close this vout */
vout_CloseAndRelease( p_vout );
vlc_object_release( p_vout );
p_vout = NULL;
}
else
{
/* This video output is cool! Hijack it. */
spu_Attach( p_vout->p_spu, p_this, true );
vlc_object_attach( p_vout, p_this );
if( p_vout->b_title_show )
DisplayTitleOnOSD( p_vout );
vlc_object_release( p_vout );
}
}
if( !p_vout )
{
msg_Dbg( p_this, "no usable vout present, spawning one" );
p_vout = vout_Create( p_this, p_fmt );
}
return p_vout;
}
/*****************************************************************************
* vout_Create: creates a new video output thread
*****************************************************************************
* This function creates a new video output thread, and returns a pointer
* to its description. On error, it returns NULL.
*****************************************************************************/
vout_thread_t * __vout_Create( vlc_object_t *p_parent, video_format_t *p_fmt )
{
vout_thread_t * p_vout; /* thread descriptor */
input_thread_t * p_input_thread;
int i_index; /* loop variable */
vlc_value_t val, text;
unsigned int i_width = p_fmt->i_width;
unsigned int i_height = p_fmt->i_height;
vlc_fourcc_t i_chroma = p_fmt->i_chroma;
unsigned int i_aspect = p_fmt->i_aspect;
config_chain_t *p_cfg;
char *psz_parser;
char *psz_name;
/* Allocate descriptor */
static const char typename[] = "video output";
p_vout = vlc_custom_create( p_parent, sizeof( *p_vout ), VLC_OBJECT_VOUT,
typename );
if( p_vout == NULL )
return NULL;
/* Initialize pictures - translation tables and functions
* will be initialized later in InitThread */
for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++)
{
p_vout->p_picture[i_index].pf_lock = NULL;
p_vout->p_picture[i_index].pf_unlock = NULL;
p_vout->p_picture[i_index].i_status = FREE_PICTURE;
p_vout->p_picture[i_index].i_type = EMPTY_PICTURE;
p_vout->p_picture[i_index].b_slow = 0;
}
/* No images in the heap */
p_vout->i_heap_size = 0;
/* Initialize the rendering heap */
I_RENDERPICTURES = 0;
vlc_ureduce( &p_fmt->i_sar_num, &p_fmt->i_sar_den,
p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
p_vout->fmt_render = *p_fmt; /* FIXME palette */
p_vout->fmt_in = *p_fmt; /* FIXME palette */
p_vout->render.i_width = i_width;
p_vout->render.i_height = i_height;
p_vout->render.i_chroma = i_chroma;
p_vout->render.i_aspect = i_aspect;
p_vout->render.i_rmask = p_fmt->i_rmask;
p_vout->render.i_gmask = p_fmt->i_gmask;
p_vout->render.i_bmask = p_fmt->i_bmask;
p_vout->render.i_last_used_pic = -1;
p_vout->render.b_allow_modify_pics = 1;
/* Zero the output heap */
I_OUTPUTPICTURES = 0;
p_vout->output.i_width = 0;
p_vout->output.i_height = 0;
p_vout->output.i_chroma = 0;
p_vout->output.i_aspect = 0;
p_vout->output.i_rmask = 0;
p_vout->output.i_gmask = 0;
p_vout->output.i_bmask = 0;
/* Initialize misc stuff */
p_vout->i_changes = 0;
p_vout->f_gamma = 0;
p_vout->b_grayscale = 0;
p_vout->b_info = 0;
p_vout->b_interface = 0;
p_vout->b_scale = 1;
p_vout->b_fullscreen = 0;
p_vout->i_alignment = 0;
p_vout->render_time = 10;
p_vout->c_fps_samples = 0;
p_vout->b_filter_change = 0;
p_vout->pf_control = NULL;
p_vout->p_window = NULL;
p_vout->i_par_num = p_vout->i_par_den = 1;
/* Initialize locks */
vlc_mutex_init( &p_vout->picture_lock );
vlc_mutex_init( &p_vout->change_lock );
vlc_mutex_init( &p_vout->vfilter_lock );
/* Mouse coordinates */
var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER );
var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER );
var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL );
var_Create( p_vout, "mouse-clicked", VLC_VAR_INTEGER );
/* Initialize subpicture unit */
p_vout->p_spu = spu_Create( p_vout );
spu_Attach( p_vout->p_spu, p_parent, true );
/* Attach the new object now so we can use var inheritance below */
vlc_object_attach( p_vout, p_parent );
spu_Init( p_vout->p_spu );
/* Take care of some "interface/control" related initialisations */
vout_IntfInit( p_vout );
/* If the parent is not a VOUT object, that means we are at the start of
* the video output pipe */
if( p_parent->i_object_type != VLC_OBJECT_VOUT )
{
/* Look for the default filter configuration */
p_vout->psz_filter_chain =
var_CreateGetStringCommand( p_vout, "vout-filter" );
/* Apply video filter2 objects on the first vout */
p_vout->psz_vf2 =
var_CreateGetStringCommand( p_vout, "video-filter" );
}
else
{
/* continue the parent's filter chain */
char *psz_tmp;
/* Ugly hack to jump to our configuration chain */
p_vout->psz_filter_chain
= ((vout_thread_t *)p_parent)->psz_filter_chain;
p_vout->psz_filter_chain
= config_ChainCreate( &psz_tmp, &p_cfg, p_vout->psz_filter_chain );
config_ChainDestroy( p_cfg );
free( psz_tmp );
/* Create a video filter2 var ... but don't inherit values */
var_Create( p_vout, "video-filter",
VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
p_vout->psz_vf2 = var_GetString( p_vout, "video-filter" );
}
var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
p_vout->p_vf2_chain = filter_chain_New( p_vout, "video filter2",
false, video_filter_buffer_allocation_init, NULL, p_vout );
/* Choose the video output module */
if( !p_vout->psz_filter_chain || !*p_vout->psz_filter_chain )
{
var_Create( p_vout, "vout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
var_Get( p_vout, "vout", &val );
psz_parser = val.psz_string;
}
else
{
psz_parser = strdup( p_vout->psz_filter_chain );
}
/* Create the vout thread */
char* psz_tmp = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
free( psz_parser );
free( psz_tmp );
p_vout->p_cfg = p_cfg;
p_vout->p_module = module_Need( p_vout,
( p_vout->psz_filter_chain && *p_vout->psz_filter_chain ) ?
"video filter" : "video output", psz_name, p_vout->psz_filter_chain && *p_vout->psz_filter_chain );
free( psz_name );
if( p_vout->p_module == NULL )
{
msg_Err( p_vout, "no suitable vout module" );
// FIXME it's ugly but that's exactly the function that need to be called.
EndThread( p_vout );
vlc_object_detach( p_vout );
vlc_object_release( p_vout );
return NULL;
}
/* Create a few object variables for interface interaction */
var_Create( p_vout, "deinterlace", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
text.psz_string = _("Deinterlace");
var_Change( p_vout, "deinterlace", VLC_VAR_SETTEXT, &text, NULL );
val.psz_string = (char *)""; text.psz_string = _("Disable");
var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char *)"discard"; text.psz_string = _("Discard");
var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char *)"blend"; text.psz_string = _("Blend");
var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char *)"mean"; text.psz_string = _("Mean");
var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char *)"bob"; text.psz_string = _("Bob");
var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char *)"linear"; text.psz_string = _("Linear");
var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
val.psz_string = (char *)"x"; text.psz_string = (char *)"X";
var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
if( var_Get( p_vout, "deinterlace-mode", &val ) == VLC_SUCCESS )
{
var_Set( p_vout, "deinterlace", val );
free( val.psz_string );
}
var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );
var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
text.psz_string = _("Filters");
var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
/* Calculate delay created by internal caching */
p_input_thread = (input_thread_t *)vlc_object_find( p_vout,
VLC_OBJECT_INPUT, FIND_ANYWHERE );
if( p_input_thread )
{
p_vout->i_pts_delay = p_input_thread->i_pts_delay;
vlc_object_release( p_input_thread );
}
else
{
p_vout->i_pts_delay = DEFAULT_PTS_DELAY;
}
if( vlc_thread_create( p_vout, "video output", RunThread,
VLC_THREAD_PRIORITY_OUTPUT, true ) )
{
module_Unneed( p_vout, p_vout->p_module );
vlc_object_release( p_vout );
return NULL;
}
vlc_object_set_destructor( p_vout, vout_Destructor );
if( p_vout->b_error )
{
msg_Err( p_vout, "video output creation failed" );
vout_CloseAndRelease( p_vout );
return NULL;
}
return p_vout;
}
/*****************************************************************************
* vout_Close: Close a vout created by vout_Create.
*****************************************************************************
* You HAVE to call it on vout created by vout_Create before vlc_object_release.
* You should NEVER call it on vout not obtained though vout_Create
* (like with vout_Request or vlc_object_find.)
* You can use vout_CloseAndRelease() as a convenient method.
*****************************************************************************/
void vout_Close( vout_thread_t *p_vout )
{
assert( p_vout );
vlc_object_kill( p_vout );
vlc_thread_join( p_vout );
module_Unneed( p_vout, p_vout->p_module );
p_vout->p_module = NULL;
}
/* */
static void vout_Destructor( vlc_object_t * p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
/* Make sure the vout was stopped first */
assert( !p_vout->p_module );
/* Destroy the locks */
vlc_mutex_destroy( &p_vout->picture_lock );
vlc_mutex_destroy( &p_vout->change_lock );
vlc_mutex_destroy( &p_vout->vfilter_lock );
free( p_vout->psz_filter_chain );
config_ChainDestroy( p_vout->p_cfg );
#ifndef __APPLE__
vout_thread_t *p_another_vout;
/* This is a dirty hack mostly for Linux, where there is no way to get the
* GUI back if you closed it while playing video. This is solved in
* Mac OS X, where we have this novelty called menubar, that will always
* allow you access to the applications main functionality. They should try
* that on linux sometime. */
p_another_vout = vlc_object_find( p_this->p_libvlc,
VLC_OBJECT_VOUT, FIND_ANYWHERE );
if( p_another_vout == NULL )
var_SetBool( p_this->p_libvlc, "intf-show", true );
else
vlc_object_release( p_another_vout );
#endif
}
/*****************************************************************************
* InitThread: initialize video output thread
*****************************************************************************
* This function is called from RunThread and performs the second step of the
* initialization. It returns 0 on success. Note that the thread's flag are not
* modified inside this function.
* XXX You have to enter it with change_lock taken.
*****************************************************************************/
static int ChromaCreate( vout_thread_t *p_vout );
static void ChromaDestroy( vout_thread_t *p_vout );
static void DropPicture( vout_thread_t *p_vout, picture_t *p_picture );
static int InitThread( vout_thread_t *p_vout )
{
int i, i_aspect_x, i_aspect_y;
#ifdef STATS
p_vout->c_loops = 0;
#endif
/* Initialize output method, it allocates direct buffers for us */
if( p_vout->pf_init( p_vout ) )
return VLC_EGENERIC;
if( !I_OUTPUTPICTURES )
{
msg_Err( p_vout, "plugin was unable to allocate at least "
"one direct buffer" );
p_vout->pf_end( p_vout );
return VLC_EGENERIC;
}
if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
{
msg_Err( p_vout, "plugin allocated too many direct buffers, "
"our internal buffers must have overflown." );
p_vout->pf_end( p_vout );
return VLC_EGENERIC;
}
msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
AspectRatio( p_vout->fmt_render.i_aspect, &i_aspect_x, &i_aspect_y );
msg_Dbg( p_vout, "picture in %ix%i (%i,%i,%ix%i), "
"chroma %4.4s, ar %i:%i, sar %i:%i",
p_vout->fmt_render.i_width, p_vout->fmt_render.i_height,
p_vout->fmt_render.i_x_offset, p_vout->fmt_render.i_y_offset,
p_vout->fmt_render.i_visible_width,
p_vout->fmt_render.i_visible_height,
(char*)&p_vout->fmt_render.i_chroma,
i_aspect_x, i_aspect_y,
p_vout->fmt_render.i_sar_num, p_vout->fmt_render.i_sar_den );
AspectRatio( p_vout->fmt_in.i_aspect, &i_aspect_x, &i_aspect_y );
msg_Dbg( p_vout, "picture user %ix%i (%i,%i,%ix%i), "
"chroma %4.4s, ar %i:%i, sar %i:%i",
p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
p_vout->fmt_in.i_visible_width,
p_vout->fmt_in.i_visible_height,
(char*)&p_vout->fmt_in.i_chroma,
i_aspect_x, i_aspect_y,
p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den );
if( !p_vout->fmt_out.i_width || !p_vout->fmt_out.i_height )
{
p_vout->fmt_out.i_width = p_vout->fmt_out.i_visible_width =
p_vout->output.i_width;
p_vout->fmt_out.i_height = p_vout->fmt_out.i_visible_height =
p_vout->output.i_height;
p_vout->fmt_out.i_x_offset = p_vout->fmt_out.i_y_offset = 0;
p_vout->fmt_out.i_aspect = p_vout->output.i_aspect;
p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
}
if( !p_vout->fmt_out.i_sar_num || !p_vout->fmt_out.i_sar_num )
{
p_vout->fmt_out.i_sar_num = p_vout->fmt_out.i_aspect *
p_vout->fmt_out.i_height;
p_vout->fmt_out.i_sar_den = VOUT_ASPECT_FACTOR *
p_vout->fmt_out.i_width;
}
vlc_ureduce( &p_vout->fmt_out.i_sar_num, &p_vout->fmt_out.i_sar_den,
p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den, 0 );
AspectRatio( p_vout->fmt_out.i_aspect, &i_aspect_x, &i_aspect_y );
msg_Dbg( p_vout, "picture out %ix%i (%i,%i,%ix%i), "
"chroma %4.4s, ar %i:%i, sar %i:%i",
p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
p_vout->fmt_out.i_x_offset, p_vout->fmt_out.i_y_offset,
p_vout->fmt_out.i_visible_width,
p_vout->fmt_out.i_visible_height,
(char*)&p_vout->fmt_out.i_chroma,
i_aspect_x, i_aspect_y,
p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den );
/* FIXME removed the need of both fmt_* and heap infos */
/* Calculate shifts from system-updated masks */
PictureHeapFixRgb( &p_vout->render );
VideoFormatImportRgb( &p_vout->fmt_render, &p_vout->render );
PictureHeapFixRgb( &p_vout->output );
VideoFormatImportRgb( &p_vout->fmt_out, &p_vout->output );
/* Check whether we managed to create direct buffers similar to
* the render buffers, ie same size and chroma */
if( ( p_vout->output.i_width == p_vout->render.i_width )
&& ( p_vout->output.i_height == p_vout->render.i_height )
&& ( vout_ChromaCmp( p_vout->output.i_chroma, p_vout->render.i_chroma ) ) )
{
/* Cool ! We have direct buffers, we can ask the decoder to
* directly decode into them ! Map the first render buffers to
* the first direct buffers, but keep the first direct buffer
* for memcpy operations */
p_vout->b_direct = 1;
for( i = 1; i < VOUT_MAX_PICTURES; i++ )
{
if( p_vout->p_picture[ i ].i_type != DIRECT_PICTURE &&
I_RENDERPICTURES >= VOUT_MIN_DIRECT_PICTURES - 1 &&
p_vout->p_picture[ i - 1 ].i_type == DIRECT_PICTURE )
{
/* We have enough direct buffers so there's no need to
* try to use system memory buffers. */
break;
}
PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
I_RENDERPICTURES++;
}
msg_Dbg( p_vout, "direct render, mapping "
"render pictures 0-%i to system pictures 1-%i",
VOUT_MAX_PICTURES - 2, VOUT_MAX_PICTURES - 1 );
}
else
{
/* Rats... Something is wrong here, we could not find an output
* plugin able to directly render what we decode. See if we can
* find a chroma plugin to do the conversion */
p_vout->b_direct = 0;
if( ChromaCreate( p_vout ) )
{
p_vout->pf_end( p_vout );
return VLC_EGENERIC;
}
msg_Dbg( p_vout, "indirect render, mapping "
"render pictures 0-%i to system pictures %i-%i",
VOUT_MAX_PICTURES - 1, I_OUTPUTPICTURES,
I_OUTPUTPICTURES + VOUT_MAX_PICTURES - 1 );
/* Append render buffers after the direct buffers */
for( i = I_OUTPUTPICTURES; i < 2 * VOUT_MAX_PICTURES; i++ )
{
PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
I_RENDERPICTURES++;
/* Check if we have enough render pictures */
if( I_RENDERPICTURES == VOUT_MAX_PICTURES )
break;
}
}
/* Link pictures back to their heap */
for( i = 0 ; i < I_RENDERPICTURES ; i++ )
{
PP_RENDERPICTURE[ i ]->p_heap = &p_vout->render;
}
for( i = 0 ; i < I_OUTPUTPICTURES ; i++ )
{
PP_OUTPUTPICTURE[ i ]->p_heap = &p_vout->output;
}
return VLC_SUCCESS;
}
/*****************************************************************************
* RunThread: video output thread
*****************************************************************************
* Video output thread. This function does only returns when the thread is
* terminated. It handles the pictures arriving in the video heap and the
* display device events.
*****************************************************************************/
static void* RunThread( vlc_object_t *p_this )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
int i_index; /* index in heap */
int i_idle_loops = 0; /* loops without displaying a picture */
mtime_t current_date; /* current date */
mtime_t display_date; /* display date */
picture_t * p_picture; /* picture pointer */
picture_t * p_last_picture = NULL; /* last picture */
picture_t * p_directbuffer; /* direct buffer to display */
subpicture_t * p_subpic = NULL; /* subpicture pointer */
input_thread_t *p_input = NULL ; /* Parent input, if it exists */
vlc_value_t val;
bool b_drop_late;
int i_displayed = 0, i_lost = 0, i_loops = 0;
/*
* Initialize thread
*/
vlc_mutex_lock( &p_vout->change_lock );
p_vout->b_error = InitThread( p_vout );
var_Create( p_vout, "drop-late-frames", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
var_Get( p_vout, "drop-late-frames", &val );
b_drop_late = val.b_bool;
/* signal the creation of the vout */
vlc_thread_ready( p_vout );
if( p_vout->b_error )
{
EndThread( p_vout );
vlc_mutex_unlock( &p_vout->change_lock );
return NULL;
}
vlc_object_lock( p_vout );
if( p_vout->b_title_show )
DisplayTitleOnOSD( p_vout );
/*
* Main loop - it is not executed if an error occurred during
* initialization
*/
while( vlc_object_alive( p_vout ) && !p_vout->b_error )
{
/* Initialize loop variables */
p_picture = NULL;
display_date = 0;
current_date = mdate();
i_loops++;
if( !p_input )
{
p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT,
FIND_PARENT );
}
if( p_input )
{
vlc_mutex_lock( &p_input->p->counters.counters_lock );
stats_UpdateInteger( p_vout, p_input->p->counters.p_lost_pictures,
i_lost , NULL);
stats_UpdateInteger( p_vout,
p_input->p->counters.p_displayed_pictures,
i_displayed , NULL);
i_displayed = i_lost = 0;
vlc_mutex_unlock( &p_input->p->counters.counters_lock );
vlc_object_release( p_input );
p_input = NULL;
}
#if 0
p_vout->c_loops++;
if( !(p_vout->c_loops % VOUT_STATS_NB_LOOPS) )
{
msg_Dbg( p_vout, "picture heap: %d/%d",
I_RENDERPICTURES, p_vout->i_heap_size );
}
#endif
/*
* Find the picture to display (the one with the earliest date).
* This operation does not need lock, since only READY_PICTUREs
* are handled. */
for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
{
if( (PP_RENDERPICTURE[i_index]->i_status == READY_PICTURE)
&& ( (p_picture == NULL) ||
(PP_RENDERPICTURE[i_index]->date < display_date) ) )
{
p_picture = PP_RENDERPICTURE[i_index];
display_date = p_picture->date;
}
}
if( p_picture )
{
/* If we met the last picture, parse again to see whether there is
* a more appropriate one. */
if( p_picture == p_last_picture )
{
for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
{
if( (PP_RENDERPICTURE[i_index]->i_status == READY_PICTURE)
&& (PP_RENDERPICTURE[i_index] != p_last_picture)
&& ((p_picture == p_last_picture) ||
(PP_RENDERPICTURE[i_index]->date < display_date)) )
{
p_picture = PP_RENDERPICTURE[i_index];
display_date = p_picture->date;
}
}
}
/* If we found better than the last picture, destroy it */
if( p_last_picture && p_picture != p_last_picture )
{
DropPicture( p_vout, p_last_picture );
p_last_picture = NULL;
}
/* Compute FPS rate */
p_vout->p_fps_sample[ p_vout->c_fps_samples++ % VOUT_FPS_SAMPLES ]
= display_date;
if( !p_picture->b_force &&
p_picture != p_last_picture &&
display_date < current_date + p_vout->render_time &&
b_drop_late )
{
/* Picture is late: it will be destroyed and the thread
* will directly choose the next picture */
DropPicture( p_vout, p_picture );
i_lost++;
msg_Warn( p_vout, "late picture skipped (%"PRId64")",
current_date - display_date );
continue;
}
if( display_date >
current_date + p_vout->i_pts_delay + VOUT_BOGUS_DELAY )
{
/* Picture is waaay too early: it will be destroyed */
DropPicture( p_vout, p_picture );
i_lost++;
msg_Warn( p_vout, "vout warning: early picture skipped "
"(%"PRId64")", display_date - current_date
- p_vout->i_pts_delay );
continue;
}
if( display_date > current_date + VOUT_DISPLAY_DELAY )
{
/* A picture is ready to be rendered, but its rendering date
* is far from the current one so the thread will perform an
* empty loop as if no picture were found. The picture state
* is unchanged */
p_picture = NULL;
display_date = 0;
}
else if( p_picture == p_last_picture )
{
/* We are asked to repeat the previous picture, but we first
* wait for a couple of idle loops */
if( i_idle_loops < 4 )
{
p_picture = NULL;
display_date = 0;
}
else
{
/* We set the display date to something high, otherwise
* we'll have lots of problems with late pictures */
display_date = current_date + p_vout->render_time;
}
}
}
if( p_picture == NULL )
{
i_idle_loops++;
}
if( p_picture )
{
p_picture = filter_chain_VideoFilter( p_vout->p_vf2_chain,
p_picture );
}
if( p_picture && p_vout->b_snapshot )
{
p_vout->b_snapshot = false;
vout_Snapshot( p_vout, p_picture );
}
/*
* Check for subpictures to display
*/
if( display_date > 0 )
{
if( !p_input )
{
p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT,
FIND_PARENT );
}
p_subpic = spu_SortSubpictures( p_vout->p_spu, display_date,
p_input ? var_GetBool( p_input, "state" ) == PAUSE_S : false );
if( p_input )
vlc_object_release( p_input );
p_input = NULL;
}
/*
* Perform rendering
*/
i_displayed++;
p_directbuffer = vout_RenderPicture( p_vout, p_picture, p_subpic );
/*
* Call the plugin-specific rendering method if there is one
*/
if( p_picture != NULL && p_directbuffer != NULL && p_vout->pf_render )
{
/* Render the direct buffer returned by vout_RenderPicture */
p_vout->pf_render( p_vout, p_directbuffer );
}
/*
* Sleep, wake up
*/
if( display_date != 0 && p_directbuffer != NULL )
{
mtime_t current_render_time = mdate() - current_date;
/* if render time is very large we don't include it in the mean */
if( current_render_time < p_vout->render_time +
VOUT_DISPLAY_DELAY )
{
/* Store render time using a sliding mean weighting to
* current value in a 3 to 1 ratio*/
p_vout->render_time *= 3;
p_vout->render_time += current_render_time;
p_vout->render_time >>= 2;
}
}
/* Give back change lock */
vlc_mutex_unlock( &p_vout->change_lock );
vlc_object_unlock( p_vout );
/* Sleep a while or until a given date */
if( display_date != 0 )
{
/* If there are filters in the chain, better give them the picture
* in advance */
if( !p_vout->psz_filter_chain || !*p_vout->psz_filter_chain )
{
mwait( display_date - VOUT_MWAIT_TOLERANCE );
}
}
else
{
msleep( VOUT_IDLE_SLEEP );
}
/* On awakening, take back lock and send immediately picture
* to display. */
vlc_object_lock( p_vout );
/* Note: vlc_object_alive() could be false here, and we
* could be dead */
vlc_mutex_lock( &p_vout->change_lock );
/*
* Display the previously rendered picture
*/
if( p_picture != NULL && p_directbuffer != NULL )
{
/* Display the direct buffer returned by vout_RenderPicture */
if( p_vout->pf_display )
{
p_vout->pf_display( p_vout, p_directbuffer );
}
/* Tell the vout this was the last picture and that it does not
* need to be forced anymore. */
p_last_picture = p_picture;
p_last_picture->b_force = 0;
}
if( p_picture != NULL )
{
/* Reinitialize idle loop count */
i_idle_loops = 0;
}
/*
* Check events and manage thread
*/
if( p_vout->pf_manage && p_vout->pf_manage( p_vout ) )
{
/* A fatal error occurred, and the thread must terminate
* immediately, without displaying anything - setting b_error to 1
* causes the immediate end of the main while() loop. */
// FIXME pf_end
p_vout->b_error = 1;
break;
}
if( p_vout->i_changes & VOUT_SIZE_CHANGE )
{
/* this must only happen when the vout plugin is incapable of
* rescaling the picture itself. In this case we need to destroy
* the current picture buffers and recreate new ones with the right
* dimensions */
int i;
p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
assert( !p_vout->b_direct );
ChromaDestroy( p_vout );
vlc_mutex_lock( &p_vout->picture_lock );
p_vout->pf_end( p_vout );
for( i = 0; i < I_OUTPUTPICTURES; i++ )
p_vout->p_picture[ i ].i_status = FREE_PICTURE;
I_OUTPUTPICTURES = 0;
if( p_vout->pf_init( p_vout ) )
{
msg_Err( p_vout, "cannot resize display" );
/* FIXME: pf_end will be called again in EndThread() */
p_vout->b_error = 1;
}
vlc_mutex_unlock( &p_vout->picture_lock );
/* Need to reinitialise the chroma plugin. Since we might need
* resizing too and it's not sure that we already had it,
* recreate the chroma plugin chain from scratch. */
/* dionoea */
if( ChromaCreate( p_vout ) )
{
msg_Err( p_vout, "WOW THIS SUCKS BIG TIME!!!!!" );
p_vout->b_error = 1;
}
if( p_vout->b_error )
break;
}
if( p_vout->i_changes & VOUT_PICTURE_BUFFERS_CHANGE )
{
/* This happens when the picture buffers need to be recreated.
* This is useful on multimonitor displays for instance.
*
* Warning: This only works when the vout creates only 1 picture
* buffer!! */
p_vout->i_changes &= ~VOUT_PICTURE_BUFFERS_CHANGE;
if( !p_vout->b_direct )
ChromaDestroy( p_vout );
vlc_mutex_lock( &p_vout->picture_lock );
p_vout->pf_end( p_vout );
I_OUTPUTPICTURES = I_RENDERPICTURES = 0;
p_vout->b_error = InitThread( p_vout );
if( p_vout->b_error )
msg_Err( p_vout, "InitThread after VOUT_PICTURE_BUFFERS_CHANGE failed\n" );
vlc_mutex_unlock( &p_vout->picture_lock );
if( p_vout->b_error )
break;
}
/* Check for "video filter2" changes */
vlc_mutex_lock( &p_vout->vfilter_lock );
if( p_vout->psz_vf2 )
{
es_format_t fmt;
es_format_Init( &fmt, VIDEO_ES, p_vout->fmt_render.i_chroma );
fmt.video = p_vout->fmt_render;
filter_chain_Reset( p_vout->p_vf2_chain, &fmt, &fmt );
if( filter_chain_AppendFromString( p_vout->p_vf2_chain,
p_vout->psz_vf2 ) < 0 )
msg_Err( p_vout, "Video filter chain creation failed" );
free( p_vout->psz_vf2 );
p_vout->psz_vf2 = NULL;
}
vlc_mutex_unlock( &p_vout->vfilter_lock );
}
if( p_input )
{
vlc_object_release( p_input );
}
/*
* Error loop - wait until the thread destruction is requested
*/
if( p_vout->b_error )
ErrorThread( p_vout );
/* End of thread */
CleanThread( p_vout );
EndThread( p_vout );
vlc_mutex_unlock( &p_vout->change_lock );
vlc_object_unlock( p_vout );
return NULL;
}
/*****************************************************************************
* ErrorThread: RunThread() error loop
*****************************************************************************
* This function is called when an error occurred during thread main's loop.
* The thread can still receive feed, but must be ready to terminate as soon
* as possible.
*****************************************************************************/
static void ErrorThread( vout_thread_t *p_vout )
{
/* Wait until a `die' order */
while( vlc_object_alive( p_vout ) )
vlc_object_wait( p_vout );
}
/*****************************************************************************
* CleanThread: clean up after InitThread
*****************************************************************************
* This function is called after a sucessful
* initialization. It frees all resources allocated by InitThread.
* XXX You have to enter it with change_lock taken.
*****************************************************************************/
static void CleanThread( vout_thread_t *p_vout )
{
int i_index; /* index in heap */
if( !p_vout->b_direct )
ChromaDestroy( p_vout );
/* Destroy all remaining pictures */
for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++ )
{
if ( p_vout->p_picture[i_index].i_type == MEMORY_PICTURE )
{
free( p_vout->p_picture[i_index].p_data_orig );
}
}
/* Destroy translation tables */
if( !p_vout->b_error )
p_vout->pf_end( p_vout );
}
/*****************************************************************************
* EndThread: thread destruction
*****************************************************************************
* This function is called when the thread ends.
* It frees all resources not allocated by InitThread.
* XXX You have to enter it with change_lock taken.
*****************************************************************************/
static void EndThread( vout_thread_t *p_vout )
{
#ifdef STATS
{
struct tms cpu_usage;
times( &cpu_usage );
msg_Dbg( p_vout, "cpu usage (user: %d, system: %d)",
cpu_usage.tms_utime, cpu_usage.tms_stime );
}
#endif
/* FIXME does that function *really* need to be called inside the thread ? */
/* Destroy subpicture unit */
spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
spu_Destroy( p_vout->p_spu );
/* Destroy the video filters2 */
filter_chain_Delete( p_vout->p_vf2_chain );
}
/* Thread helpers */
static picture_t *ChromaGetPicture( filter_t *p_filter )
{
picture_t *p_pic = (picture_t *)p_filter->p_owner;
p_filter->p_owner = NULL;
return p_pic;
}
static int ChromaCreate( vout_thread_t *p_vout )
{
static const char typename[] = "chroma";
filter_t *p_chroma;
/* Choose the best module */
p_chroma = p_vout->p_chroma =
vlc_custom_create( p_vout, sizeof(filter_t), VLC_OBJECT_GENERIC,
typename );
vlc_object_attach( p_chroma, p_vout );
/* TODO: Set the fmt_in and fmt_out stuff here */
p_chroma->fmt_in.video = p_vout->fmt_render;
p_chroma->fmt_out.video = p_vout->fmt_out;
VideoFormatImportRgb( &p_chroma->fmt_in.video, &p_vout->render );
VideoFormatImportRgb( &p_chroma->fmt_out.video, &p_vout->output );
p_chroma->p_module = module_Need( p_chroma, "video filter2", NULL, 0 );
if( p_chroma->p_module == NULL )
{
msg_Err( p_vout, "no chroma module for %4.4s to %4.4s i=%dx%d o=%dx%d",
(char*)&p_vout->render.i_chroma,
(char*)&p_vout->output.i_chroma,
p_chroma->fmt_in.video.i_width, p_chroma->fmt_in.video.i_height,
p_chroma->fmt_out.video.i_width, p_chroma->fmt_out.video.i_height
);
vlc_object_release( p_vout->p_chroma );
p_vout->p_chroma = NULL;
return VLC_EGENERIC;
}
p_chroma->pf_vout_buffer_new = ChromaGetPicture;
return VLC_SUCCESS;
}
static void ChromaDestroy( vout_thread_t *p_vout )
{
assert( !p_vout->b_direct );
if( !p_vout->p_chroma )
return;
module_Unneed( p_vout->p_chroma, p_vout->p_chroma->p_module );
vlc_object_release( p_vout->p_chroma );
p_vout->p_chroma = NULL;
}
static void DropPicture( vout_thread_t *p_vout, picture_t *p_picture )
{
vlc_mutex_lock( &p_vout->picture_lock );
if( p_picture->i_refcount )
{
/* Pretend we displayed the picture, but don't destroy
* it since the decoder might still need it. */
p_picture->i_status = DISPLAYED_PICTURE;
}
else
{
/* Destroy the picture without displaying it */
p_picture->i_status = DESTROYED_PICTURE;
p_vout->i_heap_size--;
}
vlc_mutex_unlock( &p_vout->picture_lock );
}
/* following functions are local */
static int ReduceHeight( int i_ratio )
{
int i_dummy = VOUT_ASPECT_FACTOR;
int i_pgcd = 1;
if( !i_ratio )
{
return i_pgcd;
}
/* VOUT_ASPECT_FACTOR is (2^7 * 3^3 * 5^3), we just check for 2, 3 and 5 */
while( !(i_ratio & 1) && !(i_dummy & 1) )
{
i_ratio >>= 1;
i_dummy >>= 1;
i_pgcd <<= 1;
}
while( !(i_ratio % 3) && !(i_dummy % 3) )
{
i_ratio /= 3;
i_dummy /= 3;
i_pgcd *= 3;
}
while( !(i_ratio % 5) && !(i_dummy % 5) )
{
i_ratio /= 5;
i_dummy /= 5;
i_pgcd *= 5;
}
return i_pgcd;
}
static void AspectRatio( int i_aspect, int *i_aspect_x, int *i_aspect_y )
{
unsigned int i_pgcd = ReduceHeight( i_aspect );
*i_aspect_x = i_aspect / i_pgcd;
*i_aspect_y = VOUT_ASPECT_FACTOR / i_pgcd;
}
/**
* This function copies all RGB informations from a picture_heap_t into
* a video_format_t
*/
static void VideoFormatImportRgb( video_format_t *p_fmt, const picture_heap_t *p_heap )
{
p_fmt->i_rmask = p_heap->i_rmask;
p_fmt->i_gmask = p_heap->i_gmask;
p_fmt->i_bmask = p_heap->i_bmask;
p_fmt->i_rrshift = p_heap->i_rrshift;
p_fmt->i_lrshift = p_heap->i_lrshift;
p_fmt->i_rgshift = p_heap->i_rgshift;
p_fmt->i_lgshift = p_heap->i_lgshift;
p_fmt->i_rbshift = p_heap->i_rbshift;
p_fmt->i_lbshift = p_heap->i_lbshift;
}
/**
* This funtion copes all RGB informations from a video_format_t into
* a picture_heap_t
*/
static void VideoFormatExportRgb( const video_format_t *p_fmt, picture_heap_t *p_heap )
{
p_heap->i_rmask = p_fmt->i_rmask;
p_heap->i_gmask = p_fmt->i_gmask;
p_heap->i_bmask = p_fmt->i_bmask;
p_heap->i_rrshift = p_fmt->i_rrshift;
p_heap->i_lrshift = p_fmt->i_lrshift;
p_heap->i_rgshift = p_fmt->i_rgshift;
p_heap->i_lgshift = p_fmt->i_lgshift;
p_heap->i_rbshift = p_fmt->i_rbshift;
p_heap->i_lbshift = p_fmt->i_lbshift;
}
/**
* This function computes rgb shifts from masks
*/
static void PictureHeapFixRgb( picture_heap_t *p_heap )
{
video_format_t fmt;
/* */
fmt.i_chroma = p_heap->i_chroma;
VideoFormatImportRgb( &fmt, p_heap );
/* */
video_format_FixRgb( &fmt );
VideoFormatExportRgb( &fmt, p_heap );
}
/*****************************************************************************
* Helper thread for object variables callbacks.
* Only used to avoid deadlocks when using the video embedded mode.
*****************************************************************************/
typedef struct suxor_thread_t
{
VLC_COMMON_MEMBERS
input_thread_t *p_input;
} suxor_thread_t;
static void* SuxorRestartVideoES( vlc_object_t * p_vlc_t )
{
suxor_thread_t *p_this = (suxor_thread_t *) p_vlc_t;
/* Now restart current video stream */
int val = var_GetInteger( p_this->p_input, "video-es" );
if( val >= 0 )
{
var_SetInteger( p_this->p_input, "video-es", -VIDEO_ES );
var_SetInteger( p_this->p_input, "video-es", val );
}
vlc_object_release( p_this->p_input );
vlc_object_release( p_this );
return NULL;
}
/*****************************************************************************
* object variables callbacks: a bunch of object variables are used by the
* interfaces to interact with the vout.
*****************************************************************************/
static int DeinterlaceCallback( vlc_object_t *p_this, char const *psz_cmd,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
input_thread_t *p_input;
vlc_value_t val;
char *psz_mode = newval.psz_string;
char *psz_filter, *psz_deinterlace = NULL;
(void)psz_cmd; (void)oldval; (void)p_data;
var_Get( p_vout, "vout-filter", &val );
psz_filter = val.psz_string;
if( psz_filter ) psz_deinterlace = strstr( psz_filter, "deinterlace" );
if( !psz_mode || !*psz_mode )
{
if( psz_deinterlace )
{
char *psz_src = psz_deinterlace + sizeof("deinterlace") - 1;
if( psz_src[0] == ':' ) psz_src++;
memmove( psz_deinterlace, psz_src, strlen(psz_src) + 1 );
}
}
else if( !psz_deinterlace )
{
psz_filter = realloc( psz_filter, strlen( psz_filter ) +
sizeof(":deinterlace") );
if( psz_filter && *psz_filter ) strcat( psz_filter, ":" );
strcat( psz_filter, "deinterlace" );
}
p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
FIND_PARENT );
if( !p_input ) return VLC_EGENERIC;
if( psz_mode && *psz_mode )
{
/* Modify input as well because the vout might have to be restarted */
val.psz_string = psz_mode;
var_Create( p_input, "deinterlace-mode", VLC_VAR_STRING );
var_Set( p_input, "deinterlace-mode", val );
}
vlc_object_release( p_input );
val.b_bool = true;
var_Set( p_vout, "intf-change", val );
val.psz_string = psz_filter;
var_Set( p_vout, "vout-filter", val );
free( psz_filter );
return VLC_SUCCESS;
}
static int FilterCallback( vlc_object_t *p_this, char const *psz_cmd,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
input_thread_t *p_input;
vlc_value_t val;
(void)psz_cmd; (void)oldval; (void)p_data;
p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
FIND_PARENT );
if (!p_input)
{
msg_Err( p_vout, "Input not found" );
return( VLC_EGENERIC );
}
val.b_bool = true;
var_Set( p_vout, "intf-change", val );
/* Modify input as well because the vout might have to be restarted */
val.psz_string = newval.psz_string;
var_Create( p_input, "vout-filter", VLC_VAR_STRING );
var_Set( p_input, "vout-filter", val );
/* Now restart current video stream */
var_Get( p_input, "video-es", &val );
if( val.i_int >= 0 )
{
static const char typename[] = "kludge";
suxor_thread_t *p_suxor =
vlc_custom_create( p_vout, sizeof(suxor_thread_t),
VLC_OBJECT_GENERIC, typename );
p_suxor->p_input = p_input;
p_vout->b_filter_change = true;
vlc_object_yield( p_input );
vlc_thread_create( p_suxor, "suxor", SuxorRestartVideoES,
VLC_THREAD_PRIORITY_LOW, false );
}
vlc_object_release( p_input );
return VLC_SUCCESS;
}
/*****************************************************************************
* Video Filter2 stuff
*****************************************************************************/
static int VideoFilter2Callback( vlc_object_t *p_this, char const *psz_cmd,
vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
(void)psz_cmd; (void)oldval; (void)p_data;
vlc_mutex_lock( &p_vout->vfilter_lock );
p_vout->psz_vf2 = strdup( newval.psz_string );
vlc_mutex_unlock( &p_vout->vfilter_lock );
return VLC_SUCCESS;
}
static void DisplayTitleOnOSD( vout_thread_t *p_vout )
{
input_thread_t *p_input;
mtime_t i_now, i_stop;
if( !config_GetInt( p_vout, "osd" ) ) return;
p_input = (input_thread_t *)vlc_object_find( p_vout,
VLC_OBJECT_INPUT, FIND_ANYWHERE );
if( p_input )
{
i_now = mdate();
i_stop = i_now + (mtime_t)(p_vout->i_title_timeout * 1000);
char *psz_nowplaying =
input_item_GetNowPlaying( input_GetItem( p_input ) );
char *psz_artist = input_item_GetArtist( input_GetItem( p_input ) );
char *psz_name = input_item_GetTitle( input_GetItem( p_input ) );
if( EMPTY_STR( psz_name ) )
{
free( psz_name );
psz_name = input_item_GetName( input_GetItem( p_input ) );
}
if( !EMPTY_STR( psz_nowplaying ) )
{
vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN,
psz_nowplaying, NULL,
p_vout->i_title_position,
30 + p_vout->fmt_in.i_width
- p_vout->fmt_in.i_visible_width
- p_vout->fmt_in.i_x_offset,
20 + p_vout->fmt_in.i_y_offset,
i_now, i_stop );
}
else if( !EMPTY_STR( psz_artist ) )
{
char *psz_string = NULL;
if( asprintf( &psz_string, "%s - %s", psz_name, psz_artist ) != -1 )
{
vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN,
psz_string, NULL,
p_vout->i_title_position,
30 + p_vout->fmt_in.i_width
- p_vout->fmt_in.i_visible_width
- p_vout->fmt_in.i_x_offset,
20 + p_vout->fmt_in.i_y_offset,
i_now, i_stop );
free( psz_string );
}
}
else
{
vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN,
psz_name, NULL,
p_vout->i_title_position,
30 + p_vout->fmt_in.i_width
- p_vout->fmt_in.i_visible_width
- p_vout->fmt_in.i_x_offset,
20 + p_vout->fmt_in.i_y_offset,
i_now, i_stop );
}
vlc_object_release( p_input );
free( psz_artist );
free( psz_name );
free( psz_nowplaying );
}
}
