1 /*****************************************************************************
2 * video filter: video filter doing chroma conversion and resizing
3 * using the ffmpeg library
4 *****************************************************************************
5 * Copyright (C) 1999-2001 the VideoLAN team
8 * Authors: Gildas Bazin <gbazin@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_codec.h>
35 #include <vlc_filter.h>
38 #ifdef HAVE_LIBAVCODEC_AVCODEC_H
39 # include <libavcodec/avcodec.h>
40 #elif defined(HAVE_FFMPEG_AVCODEC_H)
41 # include <ffmpeg/avcodec.h>
48 static picture_t *Deinterlace( filter_t *p_filter, picture_t *p_pic );
50 /*****************************************************************************
51 * filter_sys_t : filter descriptor
52 *****************************************************************************/
58 bool b_enable_croppadd;
61 int i_src_ffmpeg_chroma;
63 int i_dst_ffmpeg_chroma;
68 /*****************************************************************************
69 * OpenDeinterlace: probe the filter and return score
70 *****************************************************************************/
71 int OpenDeinterlace( vlc_object_t *p_this )
73 filter_t *p_filter = (filter_t*)p_this;
76 /* Check if we can handle that formats */
77 if( TestFfmpegChroma( -1, p_filter->fmt_in.i_codec ) != VLC_SUCCESS )
79 msg_Err( p_filter, "Failed to match chroma type" );
83 /* Allocate the memory needed to store the decoder's structure */
84 if( ( p_filter->p_sys = p_sys =
85 (filter_sys_t *)malloc(sizeof(filter_sys_t)) ) == NULL )
91 p_filter->fmt_in.video.i_chroma = p_filter->fmt_in.i_codec;
92 if( GetFfmpegChroma( &p_sys->i_src_ffmpeg_chroma, p_filter->fmt_in.video ) != VLC_SUCCESS )
94 msg_Err( p_filter, "Failed to match chroma type" );
97 p_filter->pf_video_filter = Deinterlace;
99 msg_Dbg( p_filter, "deinterlacing" );
101 /* libavcodec needs to be initialized for some chroma conversions */
102 InitLibavcodec(p_this);
107 /*****************************************************************************
108 * CloseDeinterlace: clean up the filter
109 *****************************************************************************/
110 void CloseDeinterlace( vlc_object_t *p_this )
112 filter_t *p_filter = (filter_t*)p_this;
113 filter_sys_t *p_sys = p_filter->p_sys;
118 /*****************************************************************************
119 * Do the processing here
120 *****************************************************************************/
121 static picture_t *Deinterlace( filter_t *p_filter, picture_t *p_pic )
123 filter_sys_t *p_sys = p_filter->p_sys;
124 AVPicture src_pic, dest_pic;
125 picture_t *p_pic_dst;
128 /* Request output picture */
129 p_pic_dst = filter_NewPicture( p_filter );
132 picture_Release( p_pic );
136 /* Prepare the AVPictures for the conversion */
137 for( i = 0; i < p_pic->i_planes; i++ )
139 src_pic.data[i] = p_pic->p[i].p_pixels;
140 src_pic.linesize[i] = p_pic->p[i].i_pitch;
142 for( i = 0; i < p_pic_dst->i_planes; i++ )
144 dest_pic.data[i] = p_pic_dst->p[i].p_pixels;
145 dest_pic.linesize[i] = p_pic_dst->p[i].i_pitch;
148 i_res = avpicture_deinterlace( &dest_pic, &src_pic, p_sys->i_src_ffmpeg_chroma,
149 p_filter->fmt_in.video.i_width,
150 p_filter->fmt_in.video.i_height );
153 msg_Err( p_filter, "deinterlacing picture failed" );
154 filter_DeletePicture( p_filter, p_pic_dst );
155 picture_Release( p_pic );
159 picture_CopyProperties( p_pic_dst, p_pic );
160 p_pic_dst->b_progressive = true;
161 picture_Release( p_pic );