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* rv32.c: new basic video filter to convert RV24 to RV32 

(remove the dependency of skins2 to ffmpeg for PNG loading)
This commit is contained in:
Cyril Deguet 2005-08-02 21:27:53 +00:00
parent c9473ca51f
commit 9eb39c5112
3 changed files with 150 additions and 1 deletions
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2
configure.ac
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@ -979,7 +979,7 @@ dnl
VLC_ADD_PLUGINS([dummy logger memcpy])
VLC_ADD_PLUGINS([mpgv mpga m4v m4a h264 ps pva avi asf mp4 rawdv nsv real aiff mjpeg demuxdump flac])
VLC_ADD_PLUGINS([cvdsub svcdsub spudec subsdec dvbsub mpeg_audio lpcm a52 dts cinepak flacdec])
VLC_ADD_PLUGINS([deinterlace invert adjust transform distort motionblur])
VLC_ADD_PLUGINS([deinterlace invert adjust transform distort motionblur rv32])
VLC_ADD_PLUGINS([fixed32tos16 s16tofixed32 u8tofixed32])
VLC_ADD_PLUGINS([trivial_resampler ugly_resampler])
VLC_ADD_PLUGINS([trivial_channel_mixer trivial_mixer])

1
modules/video_filter/Modules.am
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@ -15,4 +15,5 @@ SOURCES_time = time.c
SOURCES_marq = marq.c
SOURCES_rss = rss.c
SOURCES_motiondetect = motiondetect.c
SOURCES_rv32 = rv32.c
noinst_HEADERS += filter_common.h

148
modules/video_filter/rv32.c Normal file
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@ -0,0 +1,148 @@
/*****************************************************************************
* rv32.c: conversion plugin to RV32 format.
*****************************************************************************
* Copyright (C) 2005 the VideoLAN team
* $Id$
*
* Author: Cyril Deguet <asmax@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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <vlc/vlc.h>
#include <vlc/decoder.h>
#include "vlc_filter.h"
/*****************************************************************************
* filter_sys_t : filter descriptor
*****************************************************************************/
struct filter_sys_t
{
es_format_t fmt_in;
es_format_t fmt_out;
};
/****************************************************************************
* Local prototypes
****************************************************************************/
static int OpenFilter ( vlc_object_t * );
static void CloseFilter( vlc_object_t * );
static picture_t *Filter( filter_t *, picture_t * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
set_description( _("RV32 conversion filter") );
set_capability( "video filter2", 1 );
set_category( CAT_VIDEO );
set_subcategory( SUBCAT_VIDEO_VFILTER );
set_callbacks( OpenFilter, CloseFilter );
vlc_module_end();
/*****************************************************************************
* OpenFilter: probe the filter and return score
*****************************************************************************/
static int OpenFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t*)p_this;
filter_sys_t *p_sys;
/* XXX Only support RV24 -> RV32 conversion */
if( p_filter->fmt_in.video.i_chroma != VLC_FOURCC('R','V','2','4') ||
p_filter->fmt_out.video.i_chroma != VLC_FOURCC('R', 'V', '3', '2') )
{
return VLC_EGENERIC;
}
/* Allocate the memory needed to store the decoder's structure */
if( ( p_filter->p_sys = p_sys =
(filter_sys_t *)malloc(sizeof(filter_sys_t)) ) == NULL )
{
msg_Err( p_filter, "out of memory" );
return VLC_EGENERIC;
}
p_filter->pf_video_filter = Filter;
return VLC_SUCCESS;
}
/*****************************************************************************
* CloseFilter: clean up the filter
*****************************************************************************/
static void CloseFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t*)p_this;
filter_sys_t *p_sys = p_filter->p_sys;
free( p_sys );
}
/****************************************************************************
* Filter: the whole thing
****************************************************************************/
static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
{
picture_t *p_pic_dst;
int i_plane, i;
unsigned int j;
/* Request output picture */
p_pic_dst = p_filter->pf_vout_buffer_new( p_filter );
if( !p_pic_dst )
{
msg_Warn( p_filter, "can't get output picture" );
if( p_pic->pf_release )
p_pic->pf_release( p_pic );
return NULL;
}
/* Convert RV24 to RV32 */
for( i_plane = 0; i_plane < p_pic_dst->i_planes; i_plane++ )
{
uint8_t *p_src = p_pic->p[i_plane].p_pixels;
uint8_t *p_dst = p_pic_dst->p[i_plane].p_pixels;
unsigned int i_width = p_filter->fmt_out.video.i_width;
for( i = 0; i < p_pic_dst->p[i_plane].i_lines; i++ )
{
for( j = 0; j < i_width; j++ )
{
*(p_dst++) = p_src[2];
*(p_dst++) = p_src[1];
*(p_dst++) = p_src[0];
*(p_dst++) = 0xff; /* Alpha */
p_src += 3;
}
p_src += p_pic->p[i_plane].i_pitch - 3 * i_width;
p_dst += p_pic_dst->p[i_plane].i_pitch - 4 * i_width;
}
}
p_pic_dst->date = p_pic->date;
p_pic_dst->b_force = p_pic->b_force;
p_pic_dst->i_nb_fields = p_pic->i_nb_fields;
p_pic_dst->b_progressive = p_pic->b_progressive;
p_pic_dst->b_top_field_first = p_pic->b_top_field_first;
p_pic->pf_release( p_pic );
return p_pic_dst;
}