1 /*****************************************************************************
2 * display.c: display stream output module
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
31 #include <vlc_input.h>
33 #include <vlc_block.h>
35 /*****************************************************************************
37 *****************************************************************************/
38 #define AUDIO_TEXT N_("Enable audio")
39 #define AUDIO_LONGTEXT N_( "Enable/disable audio rendering." )
40 #define VIDEO_TEXT N_("Enable video")
41 #define VIDEO_LONGTEXT N_( "Enable/disable video rendering." )
42 #define DELAY_TEXT N_("Delay")
43 #define DELAY_LONGTEXT N_( "Introduces a delay in the display of the stream." )
45 static int Open ( vlc_object_t * );
46 static void Close( vlc_object_t * );
48 #define SOUT_CFG_PREFIX "sout-display-"
51 set_shortname( _("Display"));
52 set_description( _("Display stream output") );
53 set_capability( "sout stream", 50 );
54 add_shortcut( "display" );
55 set_category( CAT_SOUT );
56 set_subcategory( SUBCAT_SOUT_STREAM );
57 add_bool( SOUT_CFG_PREFIX "audio", 1, NULL, AUDIO_TEXT,
58 AUDIO_LONGTEXT, VLC_TRUE );
59 add_bool( SOUT_CFG_PREFIX "video", 1, NULL, VIDEO_TEXT,
60 VIDEO_LONGTEXT, VLC_TRUE );
61 add_integer( SOUT_CFG_PREFIX "delay", 100, NULL, DELAY_TEXT,
62 DELAY_LONGTEXT, VLC_TRUE );
63 set_callbacks( Open, Close );
67 /*****************************************************************************
69 *****************************************************************************/
70 static const char *ppsz_sout_options[] = {
71 "audio", "video", "delay", NULL
74 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
75 static int Del ( sout_stream_t *, sout_stream_id_t * );
76 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
78 struct sout_stream_sys_t
80 input_thread_t *p_input;
88 /*****************************************************************************
90 *****************************************************************************/
91 static int Open( vlc_object_t *p_this )
93 sout_stream_t *p_stream = (sout_stream_t*)p_this;
94 sout_stream_sys_t *p_sys;
97 config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
100 p_sys = malloc( sizeof( sout_stream_sys_t ) );
101 p_sys->p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT,
103 if( !p_sys->p_input )
105 msg_Err( p_stream, "cannot find p_input" );
110 var_Get( p_stream, SOUT_CFG_PREFIX "audio", &val );
111 p_sys->b_audio = val.b_bool;
113 var_Get( p_stream, SOUT_CFG_PREFIX "video", &val );
114 p_sys->b_video = val.b_bool;
116 var_Get( p_stream, SOUT_CFG_PREFIX "delay", &val );
117 p_sys->i_delay = (int64_t)val.i_int * 1000;
119 p_stream->pf_add = Add;
120 p_stream->pf_del = Del;
121 p_stream->pf_send = Send;
123 p_stream->p_sys = p_sys;
125 /* update p_sout->i_out_pace_nocontrol */
126 p_stream->p_sout->i_out_pace_nocontrol++;
131 /*****************************************************************************
133 *****************************************************************************/
134 static void Close( vlc_object_t * p_this )
136 sout_stream_t *p_stream = (sout_stream_t*)p_this;
137 sout_stream_sys_t *p_sys = p_stream->p_sys;
139 /* update p_sout->i_out_pace_nocontrol */
140 p_stream->p_sout->i_out_pace_nocontrol--;
142 vlc_object_release( p_sys->p_input );
146 struct sout_stream_id_t
151 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
153 sout_stream_sys_t *p_sys = p_stream->p_sys;
154 sout_stream_id_t *id;
156 if( ( p_fmt->i_cat == AUDIO_ES && !p_sys->b_audio )||
157 ( p_fmt->i_cat == VIDEO_ES && !p_sys->b_video ) )
162 id = malloc( sizeof( sout_stream_id_t ) );
164 id->p_dec = input_DecoderNew( p_sys->p_input, p_fmt, VLC_TRUE );
165 if( id->p_dec == NULL )
167 msg_Err( p_stream, "cannot create decoder for fcc=`%4.4s'",
168 (char*)&p_fmt->i_codec );
176 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
178 input_DecoderDelete( id->p_dec );
183 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
186 sout_stream_sys_t *p_sys = p_stream->p_sys;
190 block_t *p_next = p_buffer->p_next;
192 p_buffer->p_next = NULL;
194 if( id->p_dec && p_buffer->i_buffer > 0 )
196 if( p_buffer->i_dts <= 0 )
199 p_buffer->i_dts += p_sys->i_delay;
201 if( p_buffer->i_pts <= 0 )
204 p_buffer->i_pts += p_sys->i_delay;
206 input_DecoderDecode( id->p_dec, p_buffer );