/*****************************************************************************
* fake.c: decoder reading from a fake stream, outputting a fixed image
*****************************************************************************
- * Copyright (C) 2005 VideoLAN
+ * Copyright (C) 2005 the VideoLAN team
* $Id$
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
+ * Jean-Paul Saman <jpsaman at m2x dot nl>
*
* 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
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <vlc/vlc.h>
-#include <vlc/decoder.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-#include "vlc_image.h"
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_codec.h>
-/*****************************************************************************
- * decoder_sys_t : fake decoder descriptor
- *****************************************************************************/
-struct decoder_sys_t
-{
- picture_t *p_image;
-};
+#include <vlc_image.h>
+#include <vlc_filter.h>
+#include <vlc_charset.h>
/*****************************************************************************
* Local prototypes
static void CloseDecoder ( vlc_object_t * );
static picture_t *DecodeBlock ( decoder_t *, block_t ** );
+static int FakeCallback( vlc_object_t *, char const *,
+ vlc_value_t, vlc_value_t, void * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define FILE_TEXT N_("Image file")
#define FILE_LONGTEXT N_( \
- "Path of the image file when using the fake input." )
+ "Path of the image file for fake input." )
+#define RELOAD_TEXT N_("Reload image file")
+#define RELOAD_LONGTEXT N_( \
+ "Reload image file every n seconds." )
+#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 KEEP_AR_TEXT N_("Keep aspect ratio")
+#define KEEP_AR_LONGTEXT N_( \
+ "Consider width and height as maximum values." )
#define ASPECT_RATIO_TEXT N_("Background aspect ratio")
#define ASPECT_RATIO_LONGTEXT N_( \
- "Aspect ratio of the image file (4:3, 16:9)." )
+ "Aspect ratio of the image file (4:3, 16:9). Default is square pixels." )
+#define DEINTERLACE_TEXT N_("Deinterlace video")
+#define DEINTERLACE_LONGTEXT N_( \
+ "Deinterlace the image after loading it." )
+#define DEINTERLACE_MODULE_TEXT N_("Deinterlace module")
+#define DEINTERLACE_MODULE_LONGTEXT N_( \
+ "Deinterlace module to use." )
+#define CHROMA_TEXT N_("Chroma used.")
+#define CHROMA_LONGTEXT N_( \
+ "Force use of a specific chroma for output. Default is I420." )
+
+static const char *const ppsz_deinterlace_type[] =
+{
+ "deinterlace", "ffmpeg-deinterlace"
+};
vlc_module_begin();
set_category( CAT_INPUT );
set_subcategory( SUBCAT_INPUT_VCODEC );
- set_shortname( _("Fake") );
- set_description( _("Fake video decoder") );
+ set_shortname( N_("Fake") );
+ set_description( N_("Fake video decoder") );
set_capability( "decoder", 1000 );
set_callbacks( OpenDecoder, CloseDecoder );
add_shortcut( "fake" );
add_file( "fake-file", "", NULL, FILE_TEXT,
- FILE_LONGTEXT, VLC_FALSE );
- add_string( "fake-aspect-ratio", "4:3", NULL,
- ASPECT_RATIO_TEXT, ASPECT_RATIO_LONGTEXT, VLC_TRUE );
+ FILE_LONGTEXT, false );
+ add_integer( "fake-file-reload", 0, NULL, RELOAD_TEXT,
+ RELOAD_LONGTEXT, false );
+ add_integer( "fake-width", 0, NULL, WIDTH_TEXT,
+ WIDTH_LONGTEXT, true );
+ add_integer( "fake-height", 0, NULL, HEIGHT_TEXT,
+ HEIGHT_LONGTEXT, true );
+ add_bool( "fake-keep-ar", 0, NULL, KEEP_AR_TEXT, KEEP_AR_LONGTEXT,
+ true );
+ add_string( "fake-aspect-ratio", "", NULL,
+ ASPECT_RATIO_TEXT, ASPECT_RATIO_LONGTEXT, true );
+ add_bool( "fake-deinterlace", 0, NULL, DEINTERLACE_TEXT,
+ DEINTERLACE_LONGTEXT, false );
+ add_string( "fake-deinterlace-module", "deinterlace", NULL,
+ DEINTERLACE_MODULE_TEXT, DEINTERLACE_MODULE_LONGTEXT,
+ false );
+ change_string_list( ppsz_deinterlace_type, 0, 0 );
+ add_string( "fake-chroma", "I420", NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
+ true );
vlc_module_end();
+struct decoder_sys_t
+{
+ picture_t *p_image;
+ vlc_mutex_t lock;
+
+ bool b_reload;
+ mtime_t i_reload;
+ mtime_t i_next;
+};
+
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
*****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t*)p_this;
- decoder_sys_t *p_sys;
vlc_value_t val;
+ image_handler_t *p_handler;
+ video_format_t fmt_in, fmt_out;
+ picture_t *p_image;
+ char *psz_file, *psz_chroma;
+ bool b_keep_ar;
+ int i_aspect = 0;
if( p_dec->fmt_in.i_codec != VLC_FOURCC('f','a','k','e') )
{
return VLC_EGENERIC;
}
- /* Allocate the memory needed to store the decoder's structure */
- if( ( p_dec->p_sys = p_sys =
- (decoder_sys_t *)malloc(sizeof(decoder_sys_t)) ) == NULL )
+ p_dec->p_sys = (decoder_sys_t *)malloc( sizeof( decoder_sys_t ) );
+ if( !p_dec->p_sys )
{
- msg_Err( p_dec, "out of memory" );
- return VLC_EGENERIC;
+ return VLC_ENOMEM;
}
+ memset( p_dec->p_sys, 0, sizeof( decoder_sys_t ) );
- var_Create( p_dec, "fake-file", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
- var_Get( p_dec, "fake-file", &val );
- if( val.psz_string != NULL && *val.psz_string )
+ psz_file = var_CreateGetNonEmptyStringCommand( p_dec, "fake-file" );
+ if( !psz_file )
{
- image_handler_t *p_handler = image_HandlerCreate( p_dec );
- video_format_t fmt_in, fmt_out;
+ msg_Err( p_dec, "specify a file with --fake-file=..." );
+ return VLC_EGENERIC;
+ }
+ var_AddCallback( p_dec, "fake-file", FakeCallback, p_dec );
- memset( &fmt_in, 0, sizeof(fmt_in) );
- memset( &fmt_out, 0, sizeof(fmt_out) );
- fmt_out.i_chroma = VLC_FOURCC('Y', 'V', '1', '2');
- p_sys->p_image = image_ReadUrl( p_handler, val.psz_string,
- &fmt_in, &fmt_out );
- image_HandlerDelete( p_handler );
+ memset( &fmt_in, 0, sizeof(fmt_in) );
+ memset( &fmt_out, 0, sizeof(fmt_out) );
- if( p_sys->p_image == NULL )
- {
- msg_Err( p_dec, "unable to read image file %s", val.psz_string );
- free( p_dec->p_sys );
- return VLC_EGENERIC;
- }
- msg_Dbg( p_dec, "file %s loaded successfully", val.psz_string );
- p_dec->fmt_out.video = fmt_out;
+ val.i_int = var_CreateGetIntegerCommand( p_dec, "fake-file-reload" );
+ if( val.i_int > 0)
+ {
+ p_dec->p_sys->b_reload = true;
+ p_dec->p_sys->i_reload = (mtime_t)(val.i_int * 1000000);
+ p_dec->p_sys->i_next = (mtime_t)(p_dec->p_sys->i_reload + mdate());
}
- if( val.psz_string ) free( val.psz_string );
+ psz_chroma = var_CreateGetString( p_dec, "fake-chroma" );
+ if( strlen( psz_chroma ) != 4 )
+ {
+ msg_Warn( p_dec, "Invalid chroma (%s). Using I420.", psz_chroma );
+ fmt_out.i_chroma = VLC_FOURCC('I','4','2','0');
+ }
+ else
+ {
+ fmt_out.i_chroma = VLC_FOURCC( psz_chroma[0],
+ psz_chroma[1],
+ psz_chroma[2],
+ psz_chroma[3] );
+ }
+ free( psz_chroma );
+
+ var_Create( p_dec, "fake-keep-ar", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "fake-keep-ar", &val );
+ b_keep_ar = val.b_bool;
+
+ var_Create( p_dec, "fake-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Create( p_dec, "fake-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Create( p_dec, "fake-aspect-ratio",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
+
var_Get( p_dec, "fake-aspect-ratio", &val );
if ( val.psz_string )
{
if( psz_parser )
{
*psz_parser++ = '\0';
- p_dec->fmt_out.video.i_aspect = atoi( val.psz_string )
+ i_aspect = atoi( val.psz_string )
* VOUT_ASPECT_FACTOR / atoi( psz_parser );
}
- else
+ free( val.psz_string );
+ }
+
+ if ( !b_keep_ar )
+ {
+ var_Get( p_dec, "fake-width", &val );
+ fmt_out.i_width = val.i_int;
+ var_Get( p_dec, "fake-height", &val );
+ fmt_out.i_height = val.i_int;
+ }
+
+ p_handler = image_HandlerCreate( p_dec );
+ p_image = image_ReadUrl( p_handler, psz_file, &fmt_in, &fmt_out );
+ image_HandlerDelete( p_handler );
+
+ if ( p_image == NULL )
+ {
+ msg_Err( p_dec, "unable to read image file %s", psz_file );
+ return VLC_EGENERIC;
+ }
+ msg_Dbg( p_dec, "file %s loaded successfully", psz_file );
+
+ free( psz_file );
+
+ if ( b_keep_ar )
+ {
+ picture_t *p_old = p_image;
+ int i_width, i_height;
+
+ var_Get( p_dec, "fake-width", &val );
+ i_width = val.i_int;
+ var_Get( p_dec, "fake-height", &val );
+ i_height = val.i_int;
+
+ if ( i_width && i_height )
{
- msg_Warn( p_dec, "bad aspect ratio %s", val.psz_string );
- p_dec->fmt_out.video.i_aspect = 4 * VOUT_ASPECT_FACTOR / 3;
+ int i_image_ar = fmt_out.i_width * VOUT_ASPECT_FACTOR
+ / fmt_out.i_height;
+ int i_region_ar = i_width * VOUT_ASPECT_FACTOR / i_height;
+ fmt_in = fmt_out;
+
+ if ( i_aspect == i_image_ar )
+ {
+ fmt_out.i_width = i_width;
+ fmt_out.i_height = i_height;
+ }
+ else if ( i_image_ar > i_region_ar )
+ {
+ fmt_out.i_width = i_width;
+ fmt_out.i_height = i_width * VOUT_ASPECT_FACTOR
+ / i_image_ar;
+ i_aspect = i_image_ar;
+ }
+ else
+ {
+ fmt_out.i_height = i_height;
+ fmt_out.i_width = i_height * i_image_ar
+ / VOUT_ASPECT_FACTOR;
+ i_aspect = i_image_ar;
+ }
+
+ p_handler = image_HandlerCreate( p_dec );
+ p_image = image_Convert( p_handler, p_old, &fmt_in, &fmt_out );
+ image_HandlerDelete( p_handler );
+
+ if ( p_image == NULL )
+ {
+ msg_Warn( p_dec, "couldn't load resizing module" );
+ p_image = p_old;
+ fmt_out = fmt_in;
+ }
+ else
+ {
+ picture_Release( p_old );
+ }
}
+ }
- free( val.psz_string );
+ if ( i_aspect )
+ {
+ fmt_out.i_aspect = i_aspect;
}
else
{
- p_dec->fmt_out.video.i_aspect = 4 * VOUT_ASPECT_FACTOR / 3;
+ fmt_out.i_aspect = fmt_out.i_width
+ * VOUT_ASPECT_FACTOR / fmt_out.i_height;
+ }
+
+ var_Create( p_dec, "fake-deinterlace", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "fake-deinterlace", &val );
+ if ( val.b_bool )
+ {
+ picture_t *p_old = p_image;
+
+ var_Create( p_dec, "fake-deinterlace-module",
+ VLC_VAR_STRING | VLC_VAR_DOINHERIT );
+ var_Get( p_dec, "fake-deinterlace-module", &val );
+
+ p_handler = image_HandlerCreate( p_dec );
+ p_image = image_Filter( p_handler, p_old, &fmt_out, val.psz_string );
+ image_HandlerDelete( p_handler );
+ free( val.psz_string );
+
+ if ( p_image == NULL )
+ {
+ msg_Warn( p_dec, "couldn't load deinterlace module" );
+ p_image = p_old;
+ }
+ else
+ {
+ picture_Release( p_old );
+ }
}
/* Set output properties */
p_dec->fmt_out.i_cat = VIDEO_ES;
- p_dec->fmt_out.i_codec = VLC_FOURCC('Y','V','1','2');
+ p_dec->fmt_out.i_codec = fmt_out.i_chroma;
+ p_dec->fmt_out.video = fmt_out;
/* Set callbacks */
p_dec->pf_decode_video = DecodeBlock;
+ p_dec->p_sys->p_image = p_image;
+ vlc_mutex_init( &p_dec->p_sys->lock );
+
return VLC_SUCCESS;
}
****************************************************************************/
static picture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
- decoder_sys_t *p_sys = p_dec->p_sys;
+ decoder_sys_t *p_sys = (decoder_sys_t*) p_dec->p_sys;
picture_t *p_pic;
if( pp_block == NULL || !*pp_block ) return NULL;
goto error;
}
- vout_CopyPicture( p_dec, p_pic, p_sys->p_image );
+ if( p_sys->b_reload && (mdate() >= p_sys->i_next) )
+ {
+ var_TriggerCallback( p_dec, "fake-file" );
+ /* next period */
+ p_sys->i_next = (mtime_t)(p_sys->i_reload + mdate());
+ }
+ vlc_mutex_lock( &p_dec->p_sys->lock );
+ vout_CopyPicture( p_dec, p_pic, p_dec->p_sys->p_image );
+ vlc_mutex_unlock( &p_dec->p_sys->lock );
+
p_pic->date = (*pp_block)->i_pts;
error:
static void CloseDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *)p_this;
- decoder_sys_t *p_sys = p_dec->p_sys;
+ picture_t *p_image = p_dec->p_sys->p_image;
+
+ if( p_image != NULL )
+ picture_Release( p_image );
+
+ vlc_mutex_destroy( &p_dec->p_sys->lock );
+ free( p_dec->p_sys );
+}
+
+/*****************************************************************************
+ * FakeCallback: Image source change callback.
+ *****************************************************************************/
+static int FakeCallback( 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);
+ decoder_t *p_dec = (decoder_t *)p_data;
+
+ if( !strcmp( psz_var, "fake-file" ) )
+ {
+ image_handler_t *p_handler;
+ picture_t *p_new_image;
+ video_format_t fmt_in, fmt_out;
+ char *psz_file = newval.psz_string;
+ picture_t *p_image;
+
+ vlc_mutex_lock( &p_dec->p_sys->lock );
+ p_image = p_dec->p_sys->p_image;
+
+ if( !psz_file || !*psz_file )
+ {
+ msg_Err( p_dec, "fake-file value must be non empty." );
+ vlc_mutex_unlock( &p_dec->p_sys->lock );
+ return VLC_EGENERIC;
+ }
+ msg_Dbg( p_dec, "Changing fake-file to %s.", psz_file );
+
+ memset( &fmt_in, 0, sizeof(fmt_in) );
+ fmt_out = p_dec->fmt_out.video;
+ p_handler = image_HandlerCreate( p_dec );
+ p_new_image = image_ReadUrl( p_handler, psz_file, &fmt_in, &fmt_out );
+ image_HandlerDelete( p_handler );
+
+ if( !p_new_image )
+ {
+ msg_Err( p_dec, "error while reading image (%s)", psz_file );
+ vlc_mutex_unlock( &p_dec->p_sys->lock );
+ return VLC_EGENERIC;
+ }
- if( p_sys->p_image != NULL )
- p_sys->p_image->pf_release( p_sys->p_image );
- free( p_sys );
+ p_dec->p_sys->p_image = p_new_image;
+ picture_Release( p_image );
+ vlc_mutex_unlock( &p_dec->p_sys->lock );
+ }
+ else if( !strcmp( psz_var, "fake-file-reload" ) )
+ {
+ if( newval.i_int > 0)
+ {
+ p_dec->p_sys->b_reload = true;
+ p_dec->p_sys->i_reload = (mtime_t)(newval.i_int * 1000000);
+ p_dec->p_sys->i_next = (mtime_t)(p_dec->p_sys->i_reload + mdate());
+ }
+ else
+ {
+ p_dec->p_sys->b_reload = false;
+ }
+ }
+
+ return VLC_SUCCESS;
}
projects / vlc / blobdiff