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vlc/modules/stream_out/mosaic_bridge.c

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/*****************************************************************************
* mosaic_bridge.c:
*****************************************************************************
* Copyright (C) 2004-2007 the VideoLAN team
* $Id$
*
* Authors: Antoine Cellerier <dionoea@videolan.org>
* Christophe Massiot <massiot@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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <errno.h> /* ENOMEM */
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_sout.h>
#include <vlc_block.h>
#include <vlc_codec.h>
#include <vlc_meta.h>
#include <vlc_image.h>
#include <vlc_filter.h>
#include "../video_filter/mosaic.h"
#include <assert.h>
/*****************************************************************************
* Local structures
*****************************************************************************/
struct sout_stream_sys_t
{
bridged_es_t *p_es;
vlc_mutex_t *p_lock;
decoder_t *p_decoder;
image_handler_t *p_image; /* filter for resizing */
int i_height, i_width;
unsigned int i_sar_num, i_sar_den;
char *psz_id;
bool b_inited;
int i_chroma; /* force image format chroma */
filter_chain_t *p_vf2;
};
#define PICTURE_RING_SIZE 4
struct decoder_owner_sys_t
{
picture_t *pp_pics[PICTURE_RING_SIZE];
/* Current format in use by the output */
video_format_t video;
};
typedef void (* pf_release_t)( picture_t * );
static void ReleasePicture( picture_t *p_pic )
{
assert( p_pic );
if( --p_pic->i_refcount > 0 )
return;
if( p_pic->p_sys )
{
pf_release_t pf_release = (pf_release_t)p_pic->p_sys;
p_pic->p_sys = NULL;
pf_release( p_pic );
}
else
{
free( p_pic->p_q );
free( p_pic->p_data_orig );
free( p_pic );
}
}
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int Open ( vlc_object_t * );
static void Close ( vlc_object_t * );
static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
static int Del ( sout_stream_t *, sout_stream_id_t * );
static int Send( sout_stream_t *, sout_stream_id_t *, block_t * );
inline static void video_del_buffer_decoder( decoder_t *, picture_t * );
inline static void video_del_buffer_filter( filter_t *, picture_t * );
static void video_del_buffer( picture_t * );
inline static picture_t *video_new_buffer_decoder( decoder_t * );
inline static picture_t *video_new_buffer_filter( filter_t * );
static picture_t *video_new_buffer( vlc_object_t *, decoder_owner_sys_t *,
es_format_t *, void (*)( picture_t * ) );
static void video_link_picture_decoder( decoder_t *, picture_t * );
static void video_unlink_picture_decoder( decoder_t *, picture_t * );
static int HeightCallback( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
static int WidthCallback( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
static int alphaCallback( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
static int xCallback( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
static int yCallback( vlc_object_t *, char const *,
vlc_value_t, vlc_value_t, void * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define ID_TEXT N_("ID")
#define ID_LONGTEXT N_( \
"Specify an identifier string for this subpicture" )
#define WIDTH_TEXT N_("Video width")
#define WIDTH_LONGTEXT N_( \
"Output video width." )
#define HEIGHT_TEXT N_("Video height")
#define HEIGHT_LONGTEXT N_( \
"Output video height." )
#define RATIO_TEXT N_("Sample aspect ratio")
#define RATIO_LONGTEXT N_( \
"Sample aspect ratio of the destination (1:1, 3:4, 2:3)." )
#define VFILTER_TEXT N_("Video filter")
#define VFILTER_LONGTEXT N_( \
"Video filters will be applied to the video stream." )
#define CHROMA_TEXT N_("Image chroma")
#define CHROMA_LONGTEXT N_( \
"Force the use of a specific chroma. Use YUVA if you're planning " \
"to use the Alphamask or Bluescreen video filter." )
#define ALPHA_TEXT N_("Transparency")
#define ALPHA_LONGTEXT N_( \
"Transparency of the mosaic picture." )
#define X_TEXT N_("X offset")
#define X_LONGTEXT N_( \
"X coordinate of the upper left corner in the mosaic if non negative." )
#define Y_TEXT N_("Y offset")
#define Y_LONGTEXT N_( \
"Y coordinate of the upper left corner in the mosaic if non negative." )
#define CFG_PREFIX "sout-mosaic-bridge-"
vlc_module_begin ()
set_shortname( N_( "Mosaic bridge" ) )
set_description(N_("Mosaic bridge stream output") )
set_capability( "sout stream", 0 )
add_shortcut( "mosaic-bridge" )
add_string( CFG_PREFIX "id", "Id", NULL, ID_TEXT, ID_LONGTEXT,
false );
add_integer( CFG_PREFIX "width", 0, NULL, WIDTH_TEXT,
WIDTH_LONGTEXT, true );
add_integer( CFG_PREFIX "height", 0, NULL, HEIGHT_TEXT,
HEIGHT_LONGTEXT, true );
add_string( CFG_PREFIX "sar", "1:1", NULL, RATIO_TEXT,
RATIO_LONGTEXT, false );
add_string( CFG_PREFIX "chroma", 0, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
false );
add_module_list( CFG_PREFIX "vfilter", "video filter2",
NULL, NULL, VFILTER_TEXT, VFILTER_LONGTEXT, false );
add_integer_with_range( CFG_PREFIX "alpha", 255, 0, 255, NULL,
ALPHA_TEXT, ALPHA_LONGTEXT, false );
add_integer( CFG_PREFIX "x", -1, NULL, X_TEXT, X_LONGTEXT, false )
add_integer( CFG_PREFIX "y", -1, NULL, Y_TEXT, Y_LONGTEXT, false )
set_callbacks( Open, Close )
vlc_module_end ()
static const char *const ppsz_sout_options[] = {
"id", "width", "height", "sar", "vfilter", "chroma", "alpha", "x", "y", NULL
};
/*****************************************************************************
* Open
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
sout_stream_t *p_stream = (sout_stream_t *)p_this;
sout_stream_sys_t *p_sys;
vlc_object_t *p_libvlc = VLC_OBJECT( p_this->p_libvlc );
vlc_value_t val;
config_ChainParse( p_stream, CFG_PREFIX, ppsz_sout_options,
p_stream->p_cfg );
p_sys = malloc( sizeof( sout_stream_sys_t ) );
if( !p_sys )
return VLC_ENOMEM;
p_stream->p_sys = p_sys;
p_sys->b_inited = false;
var_Create( p_libvlc, "mosaic-lock", VLC_VAR_MUTEX );
var_Get( p_libvlc, "mosaic-lock", &val );
p_sys->p_lock = val.p_address;
p_sys->psz_id = var_CreateGetString( p_stream, CFG_PREFIX "id" );
p_sys->i_height =
var_CreateGetIntegerCommand( p_stream, CFG_PREFIX "height" );
var_AddCallback( p_stream, CFG_PREFIX "height", HeightCallback, p_stream );
p_sys->i_width =
var_CreateGetIntegerCommand( p_stream, CFG_PREFIX "width" );
var_AddCallback( p_stream, CFG_PREFIX "width", WidthCallback, p_stream );
var_Get( p_stream, CFG_PREFIX "sar", &val );
if( val.psz_string )
{
char *psz_parser = strchr( val.psz_string, ':' );
if( psz_parser )
{
*psz_parser++ = '\0';
p_sys->i_sar_num = atoi( val.psz_string );
p_sys->i_sar_den = atoi( psz_parser );
vlc_ureduce( &p_sys->i_sar_num, &p_sys->i_sar_den,
p_sys->i_sar_num, p_sys->i_sar_den, 0 );
}
else
{
msg_Warn( p_stream, "bad aspect ratio %s", val.psz_string );
p_sys->i_sar_num = p_sys->i_sar_den = 1;
}
free( val.psz_string );
}
else
{
p_sys->i_sar_num = p_sys->i_sar_den = 1;
}
p_sys->i_chroma = 0;
val.psz_string = var_GetNonEmptyString( p_stream, CFG_PREFIX "chroma" );
if( val.psz_string && strlen( val.psz_string ) >= 4 )
{
memcpy( &p_sys->i_chroma, val.psz_string, 4 );
msg_Dbg( p_stream, "Forcing image chroma to 0x%.8x (%4.4s)", p_sys->i_chroma, (char*)&p_sys->i_chroma );
}
free( val.psz_string );
#define INT_COMMAND( a ) do { \
var_Create( p_stream, CFG_PREFIX #a, \
VLC_VAR_INTEGER | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND ); \
var_AddCallback( p_stream, CFG_PREFIX #a, a ## Callback, \
p_stream ); } while(0)
INT_COMMAND( alpha );
INT_COMMAND( x );
INT_COMMAND( y );
#undef INT_COMMAND
p_stream->pf_add = Add;
p_stream->pf_del = Del;
p_stream->pf_send = Send;
p_stream->p_sout->i_out_pace_nocontrol++;
return VLC_SUCCESS;
}
/*****************************************************************************
* Close
*****************************************************************************/
static void Close( vlc_object_t * p_this )
{
sout_stream_t *p_stream = (sout_stream_t*)p_this;
sout_stream_sys_t *p_sys = p_stream->p_sys;
p_stream->p_sout->i_out_pace_nocontrol--;
free( p_sys->psz_id );
free( p_sys );
}
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;
return VLC_SUCCESS;
}
static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
bridge_t *p_bridge;
bridged_es_t *p_es;
char *psz_chain;
int i;
if( p_sys->b_inited || p_fmt->i_cat != VIDEO_ES )
return NULL;
/* Create decoder object */
p_sys->p_decoder = vlc_object_create( p_stream, VLC_OBJECT_DECODER );
if( !p_sys->p_decoder )
return NULL;
vlc_object_attach( p_sys->p_decoder, p_stream );
p_sys->p_decoder->p_module = NULL;
p_sys->p_decoder->fmt_in = *p_fmt;
p_sys->p_decoder->b_pace_control = false;
p_sys->p_decoder->fmt_out = p_sys->p_decoder->fmt_in;
p_sys->p_decoder->fmt_out.i_extra = 0;
p_sys->p_decoder->fmt_out.p_extra = 0;
p_sys->p_decoder->pf_decode_video = 0;
p_sys->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
p_sys->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
p_sys->p_decoder->pf_picture_link = video_link_picture_decoder;
p_sys->p_decoder->pf_picture_unlink = video_unlink_picture_decoder;
p_sys->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
if( !p_sys->p_decoder->p_owner )
{
vlc_object_detach( p_sys->p_decoder );
vlc_object_release( p_sys->p_decoder );
return NULL;
}
for( i = 0; i < PICTURE_RING_SIZE; i++ )
p_sys->p_decoder->p_owner->pp_pics[i] = NULL;
p_sys->p_decoder->p_owner->video = p_fmt->video;
//p_sys->p_decoder->p_cfg = p_sys->p_video_cfg;
p_sys->p_decoder->p_module =
module_need( p_sys->p_decoder, "decoder", "$codec", 0 );
if( !p_sys->p_decoder->p_module || !p_sys->p_decoder->pf_decode_video )
{
if( p_sys->p_decoder->p_module )
{
msg_Err( p_stream, "instanciated a non video decoder" );
module_unneed( p_sys->p_decoder, p_sys->p_decoder->p_module );
}
else
{
msg_Err( p_stream, "cannot find decoder" );
}
free( p_sys->p_decoder->p_owner );
vlc_object_detach( p_sys->p_decoder );
vlc_object_release( p_sys->p_decoder );
return NULL;
}
p_sys->b_inited = true;
vlc_mutex_lock( p_sys->p_lock );
p_bridge = GetBridge( p_stream );
if ( p_bridge == NULL )
{
vlc_object_t *p_libvlc = VLC_OBJECT( p_stream->p_libvlc );
vlc_value_t val;
p_bridge = malloc( sizeof( bridge_t ) );
var_Create( p_libvlc, "mosaic-struct", VLC_VAR_ADDRESS );
val.p_address = p_bridge;
var_Set( p_libvlc, "mosaic-struct", val );
p_bridge->i_es_num = 0;
p_bridge->pp_es = NULL;
}
for ( i = 0; i < p_bridge->i_es_num; i++ )
{
if ( p_bridge->pp_es[i]->b_empty )
break;
}
if ( i == p_bridge->i_es_num )
{
p_bridge->pp_es = realloc( p_bridge->pp_es,
(p_bridge->i_es_num + 1)
* sizeof(bridged_es_t *) );
p_bridge->i_es_num++;
p_bridge->pp_es[i] = malloc( sizeof(bridged_es_t) );
}
p_sys->p_es = p_es = p_bridge->pp_es[i];
p_es->i_alpha = var_GetInteger( p_stream, CFG_PREFIX "alpha" );
p_es->i_x = var_GetInteger( p_stream, CFG_PREFIX "x" );
p_es->i_y = var_GetInteger( p_stream, CFG_PREFIX "y" );
//p_es->fmt = *p_fmt;
p_es->psz_id = p_sys->psz_id;
p_es->p_picture = NULL;
p_es->pp_last = &p_es->p_picture;
p_es->b_empty = false;
vlc_mutex_unlock( p_sys->p_lock );
if ( p_sys->i_height || p_sys->i_width )
{
p_sys->p_image = image_HandlerCreate( p_stream );
}
else
{
p_sys->p_image = NULL;
}
msg_Dbg( p_stream, "mosaic bridge id=%s pos=%d", p_es->psz_id, i );
/* Create user specified video filters */
psz_chain = var_GetNonEmptyString( p_stream, CFG_PREFIX "vfilter" );
msg_Dbg( p_stream, "psz_chain: %s\n", psz_chain );
if( psz_chain )
{
p_sys->p_vf2 = filter_chain_New( p_stream, "video filter2", false,
video_filter_buffer_allocation_init,
NULL, p_sys->p_decoder->p_owner );
es_format_t fmt;
es_format_Copy( &fmt, &p_sys->p_decoder->fmt_out );
if( p_sys->i_chroma )
fmt.video.i_chroma = p_sys->i_chroma;
filter_chain_Reset( p_sys->p_vf2, &fmt, &fmt );
filter_chain_AppendFromString( p_sys->p_vf2, psz_chain );
free( psz_chain );
}
else
{
p_sys->p_vf2 = NULL;
}
return (sout_stream_id_t *)p_sys;
}
static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
{
VLC_UNUSED(id);
sout_stream_sys_t *p_sys = p_stream->p_sys;
bridge_t *p_bridge;
bridged_es_t *p_es;
bool b_last_es = true;
int i;
if( !p_sys->b_inited )
return VLC_SUCCESS;
if( p_sys->p_decoder != NULL )
{
decoder_owner_sys_t *p_owner = p_sys->p_decoder->p_owner;
if( p_sys->p_decoder->p_module )
module_unneed( p_sys->p_decoder, p_sys->p_decoder->p_module );
if( p_sys->p_decoder->p_description )
vlc_meta_Delete( p_sys->p_decoder->p_description );
vlc_object_detach( p_sys->p_decoder );
vlc_object_release( p_sys->p_decoder );
picture_t **pp_ring = p_owner->pp_pics;
for( i = 0; i < PICTURE_RING_SIZE; i++ )
{
if ( pp_ring[i] != NULL )
{
free( pp_ring[i]->p_data_orig );
free( pp_ring[i]->p_sys );
free( pp_ring[i] );
}
}
free( p_owner );
}
/* Destroy user specified video filters */
if( p_sys->p_vf2 )
filter_chain_Delete( p_sys->p_vf2 );
vlc_mutex_lock( p_sys->p_lock );
p_bridge = GetBridge( p_stream );
p_es = p_sys->p_es;
p_es->b_empty = true;
while ( p_es->p_picture )
{
picture_t *p_next = p_es->p_picture->p_next;
p_es->p_picture->pf_release( p_es->p_picture );
p_es->p_picture = p_next;
}
for ( i = 0; i < p_bridge->i_es_num; i++ )
{
if ( !p_bridge->pp_es[i]->b_empty )
{
b_last_es = false;
break;
}
}
if ( b_last_es )
{
vlc_object_t *p_libvlc = VLC_OBJECT( p_stream->p_libvlc );
for ( i = 0; i < p_bridge->i_es_num; i++ )
free( p_bridge->pp_es[i] );
free( p_bridge->pp_es );
free( p_bridge );
var_Destroy( p_libvlc, "mosaic-struct" );
}
vlc_mutex_unlock( p_sys->p_lock );
if ( p_sys->p_image )
{
image_HandlerDelete( p_sys->p_image );
}
p_sys->b_inited = false;
return VLC_SUCCESS;
}
/*****************************************************************************
* PushPicture : push a picture in the mosaic-struct structure
*****************************************************************************/
static void PushPicture( sout_stream_t *p_stream, picture_t *p_picture )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
bridged_es_t *p_es = p_sys->p_es;
vlc_mutex_lock( p_sys->p_lock );
*p_es->pp_last = p_picture;
p_picture->p_next = NULL;
p_es->pp_last = &p_picture->p_next;
vlc_mutex_unlock( p_sys->p_lock );
}
static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
block_t *p_buffer )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
picture_t *p_pic;
if ( (sout_stream_sys_t *)id != p_sys )
{
block_ChainRelease( p_buffer );
return VLC_SUCCESS;
}
while ( (p_pic = p_sys->p_decoder->pf_decode_video( p_sys->p_decoder,
&p_buffer )) )
{
picture_t *p_new_pic;
if( p_sys->i_height || p_sys->i_width )
{
video_format_t fmt_out, fmt_in;
memset( &fmt_in, 0, sizeof(video_format_t) );
memset( &fmt_out, 0, sizeof(video_format_t) );
fmt_in = p_sys->p_decoder->fmt_out.video;
if( p_sys->i_chroma )
fmt_out.i_chroma = p_sys->i_chroma;
else
fmt_out.i_chroma = VLC_FOURCC('I','4','2','0');
if ( !p_sys->i_height )
{
fmt_out.i_width = p_sys->i_width;
fmt_out.i_height = (p_sys->i_width * VOUT_ASPECT_FACTOR
* p_sys->i_sar_num / p_sys->i_sar_den / fmt_in.i_aspect)
& ~0x1;
}
else if ( !p_sys->i_width )
{
fmt_out.i_height = p_sys->i_height;
fmt_out.i_width = (p_sys->i_height * fmt_in.i_aspect
* p_sys->i_sar_den / p_sys->i_sar_num / VOUT_ASPECT_FACTOR)
& ~0x1;
}
else
{
fmt_out.i_width = p_sys->i_width;
fmt_out.i_height = p_sys->i_height;
}
fmt_out.i_visible_width = fmt_out.i_width;
fmt_out.i_visible_height = fmt_out.i_height;
p_new_pic = image_Convert( p_sys->p_image,
p_pic, &fmt_in, &fmt_out );
if ( p_new_pic == NULL )
{
msg_Err( p_stream, "image conversion failed" );
picture_Release( p_pic );
continue;
}
}
else
{
/* TODO: chroma conversion if needed */
p_new_pic = (picture_t*)malloc( sizeof(picture_t) );
if( p_new_pic == NULL )
{
msg_Err( p_stream, "image conversion failed" );
continue;
}
if( vout_AllocatePicture(
p_stream, p_new_pic, p_pic->format.i_chroma,
p_pic->format.i_width, p_pic->format.i_height,
p_sys->p_decoder->fmt_out.video.i_aspect )
!= VLC_SUCCESS )
{
picture_Release( p_pic );
free( p_new_pic );
msg_Err( p_stream, "image allocation failed" );
continue;
}
picture_Copy( p_new_pic, p_pic );
}
p_new_pic->i_refcount = 1;
p_new_pic->i_status = DESTROYED_PICTURE;
p_new_pic->i_type = DIRECT_PICTURE;
p_new_pic->p_sys = (picture_sys_t *)p_new_pic->pf_release;
p_new_pic->pf_release = ReleasePicture;
p_new_pic->date = p_pic->date;
picture_Release( p_pic );
if( p_sys->p_vf2 )
p_new_pic = filter_chain_VideoFilter( p_sys->p_vf2, p_new_pic );
PushPicture( p_stream, p_new_pic );
}
return VLC_SUCCESS;
}
struct picture_sys_t
{
vlc_object_t *p_owner;
bool b_dead;
};
static void video_release_buffer_decoder( picture_t *p_pic )
{
assert( p_pic && p_pic->p_sys );
if( --p_pic->i_refcount > 0 )
return;
video_del_buffer_decoder( (decoder_t *)p_pic->p_sys->p_owner, p_pic );
}
static void video_release_buffer_filter( picture_t *p_pic )
{
assert( p_pic );
if( --p_pic->i_refcount > 0 )
return;
assert( p_pic->p_sys );
video_del_buffer_filter( (filter_t *)p_pic->p_sys->p_owner, p_pic );
}
inline static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
{
return video_new_buffer( VLC_OBJECT( p_dec ),
(decoder_owner_sys_t *)p_dec->p_owner,
&p_dec->fmt_out,
video_release_buffer_decoder );
}
inline static picture_t *video_new_buffer_filter( filter_t *p_filter )
{
return video_new_buffer( VLC_OBJECT( p_filter ),
(decoder_owner_sys_t *)p_filter->p_owner,
&p_filter->fmt_out,
video_release_buffer_filter );
}
static picture_t *video_new_buffer( vlc_object_t *p_this,
decoder_owner_sys_t *p_sys,
es_format_t *fmt_out,
void ( *pf_release )( picture_t * ) )
{
picture_t **pp_ring = p_sys->pp_pics;
picture_t *p_pic;
int i;
if( fmt_out->video.i_width != p_sys->video.i_width ||
fmt_out->video.i_height != p_sys->video.i_height ||
fmt_out->video.i_chroma != p_sys->video.i_chroma ||
fmt_out->video.i_aspect != p_sys->video.i_aspect )
{
if( !fmt_out->video.i_sar_num ||
!fmt_out->video.i_sar_den )
{
fmt_out->video.i_sar_num =
fmt_out->video.i_aspect * fmt_out->video.i_height;
fmt_out->video.i_sar_den =
VOUT_ASPECT_FACTOR * fmt_out->video.i_width;
}
vlc_ureduce( &fmt_out->video.i_sar_num,
&fmt_out->video.i_sar_den,
fmt_out->video.i_sar_num,
fmt_out->video.i_sar_den, 0 );
if( !fmt_out->video.i_visible_width ||
!fmt_out->video.i_visible_height )
{
fmt_out->video.i_visible_width = fmt_out->video.i_width;
fmt_out->video.i_visible_height = fmt_out->video.i_height;
}
fmt_out->video.i_chroma = fmt_out->i_codec;
p_sys->video = fmt_out->video;
for( i = 0; i < PICTURE_RING_SIZE; i++ )
{
if ( pp_ring[i] != NULL )
{
if ( pp_ring[i]->i_status == DESTROYED_PICTURE )
{
free( pp_ring[i]->p_data_orig );
free( pp_ring[i]->p_sys );
free( pp_ring[i] );
}
else
{
pp_ring[i]->p_sys->b_dead = true;
}
pp_ring[i] = NULL;
}
}
}
/* Find an empty space in the picture ring buffer */
for( i = 0; i < PICTURE_RING_SIZE; i++ )
{
if( pp_ring[i] != NULL && pp_ring[i]->i_status == DESTROYED_PICTURE )
{
pp_ring[i]->i_status = RESERVED_PICTURE;
pp_ring[i]->i_refcount = 1;
return pp_ring[i];
}
}
for( i = 0; i < PICTURE_RING_SIZE; i++ )
{
if( pp_ring[i] == NULL ) break;
}
if( i == PICTURE_RING_SIZE )
{
msg_Err( p_this, "decoder/filter is leaking pictures, "
"resetting its ring buffer" );
for( i = 0; i < PICTURE_RING_SIZE; i++ )
{
pp_ring[i]->p_sys->b_dead = true;
pp_ring[i]->pf_release( pp_ring[i] );
pp_ring[i] = NULL;
}
i = 0;
}
p_pic = malloc( sizeof(picture_t) );
if( !p_pic ) return NULL;
fmt_out->video.i_chroma = fmt_out->i_codec;
if( vout_AllocatePicture( p_this, p_pic,
fmt_out->video.i_chroma,
fmt_out->video.i_width,
fmt_out->video.i_height,
fmt_out->video.i_aspect ) != VLC_SUCCESS )
{
free( p_pic );
return NULL;
}
if( !p_pic->i_planes )
{
free( p_pic );
return NULL;
}
p_pic->pf_release = pf_release;
p_pic->i_refcount = 1;
p_pic->p_sys = malloc( sizeof(picture_sys_t) );
p_pic->p_sys->p_owner = p_this;
p_pic->p_sys->b_dead = false;
p_pic->i_status = RESERVED_PICTURE;
pp_ring[i] = p_pic;
return p_pic;
}
inline static void video_del_buffer_decoder( decoder_t *p_this,
picture_t *p_pic )
{
VLC_UNUSED(p_this);
video_del_buffer( p_pic );
}
inline static void video_del_buffer_filter( filter_t *p_this,
picture_t *p_pic )
{
VLC_UNUSED(p_this);
video_del_buffer( p_pic );
}
static void video_del_buffer( picture_t *p_pic )
{
p_pic->i_refcount = 0;
p_pic->i_status = DESTROYED_PICTURE;
if ( p_pic->p_sys->b_dead )
{
free( p_pic->p_data_orig );
free( p_pic->p_sys );
free( p_pic );
}
}
static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
{
VLC_UNUSED(p_dec);
p_pic->i_refcount++;
}
static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
{
VLC_UNUSED(p_dec);
video_release_buffer_decoder( p_pic );
}
/**********************************************************************
* Callback to update (some) params on the fly
**********************************************************************/
static int HeightCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
VLC_UNUSED(p_this); VLC_UNUSED(oldval); VLC_UNUSED(psz_var);
sout_stream_t *p_stream = (sout_stream_t *)p_data;
sout_stream_sys_t *p_sys = p_stream->p_sys;
/* We create the handler before updating the value in p_sys
* so we don't have to worry about locking */
if( !p_sys->p_image && newval.i_int )
p_sys->p_image = image_HandlerCreate( p_stream );
p_sys->i_height = newval.i_int;
return VLC_SUCCESS;
}
static int WidthCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
VLC_UNUSED(p_this); VLC_UNUSED(oldval); VLC_UNUSED(psz_var);
sout_stream_t *p_stream = (sout_stream_t *)p_data;
sout_stream_sys_t *p_sys = p_stream->p_sys;
/* We create the handler before updating the value in p_sys
* so we don't have to worry about locking */
if( !p_sys->p_image && newval.i_int )
p_sys->p_image = image_HandlerCreate( p_stream );
p_sys->i_width = newval.i_int;
return VLC_SUCCESS;
}
static int alphaCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
VLC_UNUSED(p_this); VLC_UNUSED(oldval); VLC_UNUSED(psz_var);
sout_stream_t *p_stream = (sout_stream_t *)p_data;
sout_stream_sys_t *p_sys = p_stream->p_sys;
if( p_sys->p_es )
p_sys->p_es->i_alpha = newval.i_int;
return VLC_SUCCESS;
}
static int xCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
VLC_UNUSED(p_this); VLC_UNUSED(oldval); VLC_UNUSED(psz_var);
sout_stream_t *p_stream = (sout_stream_t *)p_data;
sout_stream_sys_t *p_sys = p_stream->p_sys;
if( p_sys->p_es )
p_sys->p_es->i_x = newval.i_int;
return VLC_SUCCESS;
}
static int yCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
VLC_UNUSED(p_this); VLC_UNUSED(oldval); VLC_UNUSED(psz_var);
sout_stream_t *p_stream = (sout_stream_t *)p_data;
sout_stream_sys_t *p_sys = p_stream->p_sys;
if( p_sys->p_es )
p_sys->p_es->i_y = newval.i_int;
return VLC_SUCCESS;
}