mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-16 16:02:54 +02:00
19ea8feb6d
waveout, directx, qnx, beos, win32, macosx, and the AltiVec modules.
* ALL: removed mention of AC3 in favour of A52.
* ./configure.in, ./Makefile*: modules can now be built deeper than 1
directory. As a consequence, the build is even slower (but I'm fixing
this) and make clean doesn't work anymore.
258 lines
9.1 KiB
C
258 lines
9.1 KiB
C
/*****************************************************************************
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* clone.c : Clone video plugin for vlc
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*****************************************************************************
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* Copyright (C) 2002 VideoLAN
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* $Id: clone.c,v 1.1 2002/08/04 17:23:43 sam Exp $
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <errno.h>
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#include <stdlib.h> /* malloc(), free() */
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#include <string.h>
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#include <vlc/vlc.h>
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#include <vlc/vout.h>
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#include "filter_common.h"
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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static int Create ( vlc_object_t * );
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static void Destroy ( vlc_object_t * );
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static int Init ( vout_thread_t * );
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static void End ( vout_thread_t * );
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static void Render ( vout_thread_t *, picture_t * );
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static void RemoveAllVout ( vout_thread_t *p_vout );
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define COUNT_TEXT N_("Number of clones")
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#define COUNT_LONGTEXT N_("Select the number of video windows in which to "\
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"clone the video")
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vlc_module_begin();
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add_category_hint( N_("Miscellaneous"), NULL );
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add_integer( "clone-count", 2, NULL, COUNT_TEXT, COUNT_LONGTEXT );
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set_description( _("image clone video module") );
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set_capability( "video filter", 0 );
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add_shortcut( "clone" );
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set_callbacks( Create, Destroy );
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vlc_module_end();
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/*****************************************************************************
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* vout_sys_t: Clone video output method descriptor
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*****************************************************************************
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* This structure is part of the video output thread descriptor.
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* It describes the Clone specific properties of an output thread.
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*****************************************************************************/
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struct vout_sys_t
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{
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int i_clones;
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vout_thread_t **pp_vout;
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};
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/*****************************************************************************
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* Create: allocates Clone video thread output method
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*****************************************************************************
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* This function allocates and initializes a Clone vout method.
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*****************************************************************************/
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static int Create( vlc_object_t *p_this )
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{
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vout_thread_t *p_vout = (vout_thread_t *)p_this;
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/* Allocate structure */
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p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
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if( p_vout->p_sys == NULL )
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{
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msg_Err( p_vout, "out of memory" );
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return( 1 );
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}
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p_vout->pf_init = Init;
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p_vout->pf_end = End;
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p_vout->pf_manage = NULL;
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p_vout->pf_render = Render;
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p_vout->pf_display = NULL;
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/* Look what method was requested */
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p_vout->p_sys->i_clones = config_GetInt( p_vout, "clone-count" );
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p_vout->p_sys->i_clones = __MAX( 1, __MIN( 99, p_vout->p_sys->i_clones ) );
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msg_Dbg( p_vout, "spawning %i clone(s)", p_vout->p_sys->i_clones );
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p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_clones *
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sizeof(vout_thread_t *) );
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if( p_vout->p_sys->pp_vout == NULL )
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{
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msg_Err( p_vout, "out of memory" );
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free( p_vout->p_sys );
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return( 1 );
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}
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return( 0 );
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}
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/*****************************************************************************
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* Init: initialize Clone video thread output method
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*****************************************************************************/
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static int Init( vout_thread_t *p_vout )
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{
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int i_index, i_vout;
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picture_t *p_pic;
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I_OUTPUTPICTURES = 0;
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/* Initialize the output structure */
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p_vout->output.i_chroma = p_vout->render.i_chroma;
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p_vout->output.i_width = p_vout->render.i_width;
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p_vout->output.i_height = p_vout->render.i_height;
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p_vout->output.i_aspect = p_vout->render.i_aspect;
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/* Try to open the real video output */
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msg_Dbg( p_vout, "spawning the real video outputs" );
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for( i_vout = 0; i_vout < p_vout->p_sys->i_clones; i_vout++ )
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{
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p_vout->p_sys->pp_vout[ i_vout ] =
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vout_CreateThread( p_vout,
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p_vout->render.i_width, p_vout->render.i_height,
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p_vout->render.i_chroma, p_vout->render.i_aspect );
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if( p_vout->p_sys->pp_vout[ i_vout ] == NULL )
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{
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msg_Err( p_vout, "failed to clone %i vout threads",
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p_vout->p_sys->i_clones );
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p_vout->p_sys->i_clones = i_vout;
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RemoveAllVout( p_vout );
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return 0;
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}
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}
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ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
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return( 0 );
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}
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/*****************************************************************************
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* End: terminate Clone video thread output method
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*****************************************************************************/
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static void End( vout_thread_t *p_vout )
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{
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int i_index;
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/* Free the fake output buffers we allocated */
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for( i_index = I_OUTPUTPICTURES ; i_index ; )
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{
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i_index--;
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free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
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}
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}
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/*****************************************************************************
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* Destroy: destroy Clone video thread output method
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*****************************************************************************
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* Terminate an output method created by CloneCreateOutputMethod
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*****************************************************************************/
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static void Destroy( vlc_object_t *p_this )
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{
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vout_thread_t *p_vout = (vout_thread_t *)p_this;
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RemoveAllVout( p_vout );
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free( p_vout->p_sys->pp_vout );
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free( p_vout->p_sys );
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}
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/*****************************************************************************
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* Render: displays previously rendered output
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*****************************************************************************
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* This function send the currently rendered image to Clone image, waits
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* until it is displayed and switch the two rendering buffers, preparing next
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* frame.
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*****************************************************************************/
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static void Render( vout_thread_t *p_vout, picture_t *p_pic )
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{
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picture_t *p_outpic = NULL;
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int i_vout, i_plane;
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for( i_vout = 0; i_vout < p_vout->p_sys->i_clones; i_vout++ )
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{
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while( ( p_outpic =
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vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ], 0, 0, 0 )
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) == NULL )
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{
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if( p_vout->b_die || p_vout->b_error )
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{
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vout_DestroyPicture(
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p_vout->p_sys->pp_vout[ i_vout ], p_outpic );
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return;
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}
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msleep( VOUT_OUTMEM_SLEEP );
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}
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vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ],
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p_outpic, p_pic->date );
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vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ], p_outpic );
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for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
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{
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u8 *p_in, *p_in_end, *p_out;
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int i_in_pitch = p_pic->p[i_plane].i_pitch;
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const int i_out_pitch = p_outpic->p[i_plane].i_pitch;
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p_in = p_pic->p[i_plane].p_pixels;
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p_in_end = p_in + p_outpic->p[i_plane].i_lines
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* p_pic->p[i_plane].i_pitch;
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p_out = p_outpic->p[i_plane].p_pixels;
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while( p_in < p_in_end )
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{
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p_vout->p_vlc->pf_memcpy( p_out, p_in, i_out_pitch );
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p_in += i_in_pitch;
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p_out += i_out_pitch;
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}
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}
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vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ], p_outpic );
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vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ], p_outpic );
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}
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}
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/*****************************************************************************
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* RemoveAllVout: destroy all the child video output threads
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*****************************************************************************/
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static void RemoveAllVout( vout_thread_t *p_vout )
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{
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while( p_vout->p_sys->i_clones )
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{
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--p_vout->p_sys->i_clones;
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vout_DestroyThread( p_vout->p_sys->pp_vout[p_vout->p_sys->i_clones] );
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}
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}
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