+++ /dev/null
-/*****************************************************************************
- * fake.c : Fake video input for VLC
- *****************************************************************************
- * Copyright (C) 2005 the VideoLAN team
- * $Id$
- *
- * Author: 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 <vlc_common.h>
-#include <vlc_plugin.h>
-#include <vlc_access.h>
-#include <vlc_demux.h>
-#include <vlc_image.h>
-
-/*****************************************************************************
- * Module descriptior
- *****************************************************************************/
-static int Open ( vlc_object_t * );
-static void Close( vlc_object_t * );
-
-#define CACHING_TEXT N_("Caching value in ms")
-#define CACHING_LONGTEXT N_( \
- "Caching value for fake streams. This " \
- "value should be set in milliseconds." )
-#define FPS_TEXT N_("Framerate")
-#define FPS_LONGTEXT N_( \
- "Number of frames per second (eg. 24, 25, 29.97, 30).")
-#define ID_TEXT N_("ID")
-#define ID_LONGTEXT N_( \
- "Set the ID of the fake elementary stream for use in " \
- "#duplicate{} constructs (default 0).")
-#define DURATION_TEXT N_("Duration in ms")
-#define DURATION_LONGTEXT N_( \
- "Duration of the fake streaming before faking an " \
- "end-of-file (default is -1 meaning that the stream is unlimited when " \
- "fake is forced, or lasts for 10 seconds otherwise. 0, means that the " \
- "stream is unlimited).")
-
-vlc_module_begin ()
- set_shortname( N_("Fake") )
- set_description( N_("Fake video input") )
- set_category( CAT_INPUT )
- set_subcategory( SUBCAT_INPUT_ACCESS )
-
- add_integer( "fake-caching", DEFAULT_PTS_DELAY / 1000, NULL,
- CACHING_TEXT, CACHING_LONGTEXT, true )
- add_float( "fake-fps", 25.0, NULL, FPS_TEXT, FPS_LONGTEXT, true )
- add_integer( "fake-id", 0, NULL, ID_TEXT, ID_LONGTEXT, true )
- add_integer( "fake-duration", -1, NULL, DURATION_TEXT, DURATION_LONGTEXT,
- true )
-
- add_shortcut( "fake" )
- set_capability( "access_demux", 10 )
- set_callbacks( Open, Close )
-vlc_module_end ()
-
-/*****************************************************************************
- * Access: local prototypes
- *****************************************************************************/
-static int Demux ( demux_t * );
-static int Control( demux_t *, int, va_list );
-
-struct demux_sys_t
-{
- float f_fps;
- mtime_t i_last_pts, i_duration, i_first_pts, i_end_pts, i_pause_pts;
-
- es_out_id_t *p_es_video;
-};
-
-/*****************************************************************************
- * Open: opens fake device
- *****************************************************************************/
-static int Open( vlc_object_t *p_this )
-{
- demux_t *p_demux = (demux_t*)p_this;
- demux_sys_t *p_sys;
- es_format_t fmt;
-
- if( *p_demux->psz_access != '\0' )
- {
- /* if an access is provided, then it has to be "fake" */
- if( strcmp( p_demux->psz_access, "fake" ) )
- return VLC_EGENERIC;
-
- msg_Dbg( p_demux, "fake:// access_demux detected" );
- }
- else
- {
- /**
- * access is not provided,
- * then let's see if path could be an image
- **/
-
- if( !p_demux->psz_path || !*p_demux->psz_path )
- return VLC_EGENERIC;
-
- vlc_fourcc_t i_codec = image_Ext2Fourcc( p_demux->psz_path );
- if( !i_codec )
- return VLC_EGENERIC;
- msg_Dbg( p_demux, "still image detected with codec format %4.4s",
- (const char*)&i_codec );
- }
-
- if( p_demux->psz_path && *p_demux->psz_path )
- {
- /* set up fake-file on the fly */
- var_Create( p_demux->p_parent, "fake-file", VLC_VAR_STRING );
- var_SetString( p_demux->p_parent, "fake-file", p_demux->psz_path );
- }
-
- /* Set up p_demux */
- DEMUX_INIT_COMMON(); p_sys = p_demux->p_sys;
- p_demux->info.i_update = 0;
- p_demux->info.i_title = 0;
- p_demux->info.i_seekpoint = 0;
-
- p_sys->i_duration =
- (mtime_t)var_CreateGetInteger( p_demux, "fake-duration" ) * 1000;
- if( p_sys->i_duration < 0 )
- {
- if( !strcmp( p_demux->psz_access, "fake" ) )
- p_sys->i_duration = 0;
- else
- p_sys->i_duration = 10000*1000;
- }
- p_sys->f_fps = var_CreateGetFloat( p_demux, "fake-fps" );
-
- /* Declare the elementary stream */
- es_format_Init( &fmt, VIDEO_ES, VLC_FOURCC('f','a','k','e') );
- fmt.i_id = var_CreateGetInteger( p_demux, "fake-id" );
- p_sys->p_es_video = es_out_Add( p_demux->out, &fmt );
-
- /* Update default_pts to a suitable value for access */
- var_Create( p_demux, "fake-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * Close: close device, free resources
- *****************************************************************************/
-static void Close( vlc_object_t *p_this )
-{
- demux_t *p_demux = (demux_t *)p_this;
- demux_sys_t *p_sys = p_demux->p_sys;
-
- free( p_sys );
-}
-
-/*****************************************************************************
- * Control:
- *****************************************************************************/
-static int Control( demux_t *p_demux, int i_query, va_list args )
-{
- demux_sys_t *p_sys = p_demux->p_sys;
- bool *pb, b;
- int64_t *pi64, i64;
- double *pf, f;
-
- switch( i_query )
- {
- /* Special for access_demux */
- case DEMUX_CAN_PAUSE:
- case DEMUX_CAN_SEEK:
- case DEMUX_CAN_CONTROL_PACE:
- pb = (bool *)va_arg( args, bool * );
- *pb = true;
- return VLC_SUCCESS;
-
- case DEMUX_SET_PAUSE_STATE:
- b = (bool)va_arg( args, int );
- if ( b )
- {
- p_sys->i_pause_pts = mdate();
- }
- else if ( p_sys->i_pause_pts )
- {
- mtime_t i_pause_duration = mdate() - p_sys->i_pause_pts;
- p_sys->i_first_pts += i_pause_duration;
- p_sys->i_last_pts += i_pause_duration;
- if ( p_sys->i_duration )
- p_sys->i_end_pts += i_pause_duration;
- p_sys->i_pause_pts = 0;
- }
- return VLC_SUCCESS;
-
- case DEMUX_GET_PTS_DELAY:
- pi64 = (int64_t *)va_arg( args, int64_t * );
- *pi64 = (int64_t)var_GetInteger( p_demux, "fake-caching" ) * 1000;
- return VLC_SUCCESS;
-
- case DEMUX_GET_POSITION:
- if( p_sys->i_duration <= 0 )
- return VLC_EGENERIC;
- pf = (double*)va_arg( args, double* );
- *pf = (double)( p_sys->i_last_pts - p_sys->i_first_pts )
- / (double)(p_sys->i_duration);
- return VLC_SUCCESS;
-
- case DEMUX_SET_POSITION:
- if( p_sys->i_duration <= 0 )
- return VLC_EGENERIC;
- f = (double)va_arg( args, double );
- i64 = f * (double)p_sys->i_duration;
- p_sys->i_first_pts = p_sys->i_last_pts - i64;
- p_sys->i_end_pts = p_sys->i_first_pts + p_sys->i_duration;
- return VLC_SUCCESS;
-
- case DEMUX_GET_TIME:
- pi64 = (int64_t *)va_arg( args, int64_t * );
- *pi64 = p_sys->i_last_pts - p_sys->i_first_pts;
- return VLC_SUCCESS;
-
- case DEMUX_GET_LENGTH:
- if( p_sys->i_duration <= 0 )
- return VLC_EGENERIC;
- pi64 = (int64_t*)va_arg( args, int64_t * );
- *pi64 = p_sys->i_duration;
- return VLC_SUCCESS;
-
- case DEMUX_SET_TIME:
- i64 = (int64_t)va_arg( args, int64_t );
- p_sys->i_first_pts = p_sys->i_last_pts - i64;
- p_sys->i_end_pts = p_sys->i_first_pts + p_sys->i_duration;
- return VLC_SUCCESS;
-
- /* TODO implement others */
- default:
- return VLC_EGENERIC;
- }
-
- return VLC_EGENERIC;
-}
-
-/*****************************************************************************
- * Demux:
- *****************************************************************************/
-static int Demux( demux_t *p_demux )
-{
- demux_sys_t *p_sys = p_demux->p_sys;
-
- if ( !p_sys->i_last_pts )
- {
- p_sys->i_last_pts = p_sys->i_first_pts = mdate();
- if ( p_sys->i_duration )
- p_sys->i_end_pts = p_sys->i_first_pts + p_sys->i_duration;
- }
- else
- {
- p_sys->i_last_pts += (mtime_t)(1000000.0 / p_sys->f_fps);
- if ( p_sys->i_duration && p_sys->i_last_pts > p_sys->i_end_pts )
- return 0;
- mwait( p_sys->i_last_pts );
- }
-
- block_t *p_block = block_New( p_demux, 1 );
- p_block->i_flags |= BLOCK_FLAG_TYPE_I;
- p_block->i_dts = p_block->i_pts = p_sys->i_last_pts;
-
- es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
- es_out_Send( p_demux->out, p_sys->p_es_video, p_block );
-
- return 1;
-}
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