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 *****************************************************************************/
33 #include <vlc_input.h>
35 #include <vlc_block.h>
37 /*****************************************************************************
39 *****************************************************************************/
40 #define AUDIO_TEXT N_("Enable audio")
41 #define AUDIO_LONGTEXT N_( "Enable/disable audio rendering." )
42 #define VIDEO_TEXT N_("Enable video")
43 #define VIDEO_LONGTEXT N_( "Enable/disable video rendering." )
44 #define DELAY_TEXT N_("Delay")
45 #define DELAY_LONGTEXT N_( "Introduces a delay in the display of the stream." )
47 static int Open ( vlc_object_t * );
48 static void Close( vlc_object_t * );
50 #define SOUT_CFG_PREFIX "sout-display-"
53 set_shortname( _("Display"));
54 set_description( _("Display stream output") );
55 set_capability( "sout stream", 50 );
56 add_shortcut( "display" );
57 set_category( CAT_SOUT );
58 set_subcategory( SUBCAT_SOUT_STREAM );
59 add_bool( SOUT_CFG_PREFIX "audio", 1, NULL, AUDIO_TEXT,
60 AUDIO_LONGTEXT, VLC_TRUE );
61 add_bool( SOUT_CFG_PREFIX "video", 1, NULL, VIDEO_TEXT,
62 VIDEO_LONGTEXT, VLC_TRUE );
63 add_integer( SOUT_CFG_PREFIX "delay", 100, NULL, DELAY_TEXT,
64 DELAY_LONGTEXT, VLC_TRUE );
65 set_callbacks( Open, Close );
69 /*****************************************************************************
71 *****************************************************************************/
72 static const char *ppsz_sout_options[] = {
73 "audio", "video", "delay", NULL
76 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
77 static int Del ( sout_stream_t *, sout_stream_id_t * );
78 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
80 struct sout_stream_sys_t
82 input_thread_t *p_input;
91 /*****************************************************************************
93 *****************************************************************************/
94 static int Open( vlc_object_t *p_this )
96 sout_stream_t *p_stream = (sout_stream_t*)p_this;
97 sout_stream_sys_t *p_sys;
100 config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
103 p_sys = malloc( sizeof( sout_stream_sys_t ) );
104 p_sys->p_input = NULL;
107 var_Get( p_stream, SOUT_CFG_PREFIX "audio", &val );
108 p_sys->b_audio = val.b_bool;
110 var_Get( p_stream, SOUT_CFG_PREFIX "video", &val );
111 p_sys->b_video = val.b_bool;
113 var_Get( p_stream, SOUT_CFG_PREFIX "delay", &val );
114 p_sys->i_delay = (int64_t)val.i_int * 1000;
116 p_stream->pf_add = Add;
117 p_stream->pf_del = Del;
118 p_stream->pf_send = Send;
120 p_stream->p_sys = p_sys;
122 /* update p_sout->i_out_pace_nocontrol */
123 p_stream->p_sout->i_out_pace_nocontrol++;
128 /*****************************************************************************
130 *****************************************************************************/
131 static void Close( vlc_object_t * p_this )
133 sout_stream_t *p_stream = (sout_stream_t*)p_this;
134 sout_stream_sys_t *p_sys = p_stream->p_sys;
136 /* update p_sout->i_out_pace_nocontrol */
137 p_stream->p_sout->i_out_pace_nocontrol--;
142 struct sout_stream_id_t
147 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
149 sout_stream_sys_t *p_sys = p_stream->p_sys;
150 sout_stream_id_t *id;
152 if( ( p_fmt->i_cat == AUDIO_ES && !p_sys->b_audio )||
153 ( p_fmt->i_cat == VIDEO_ES && !p_sys->b_video ) )
158 id = malloc( sizeof( sout_stream_id_t ) );
162 if( p_sys->i_es == 0 )
164 p_sys->p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT,
166 if( p_sys->p_input == NULL )
168 msg_Err( p_stream, "cannot find input" );
174 id->p_dec = input_DecoderNew( p_sys->p_input, p_fmt, VLC_TRUE );
175 if( id->p_dec == NULL )
177 msg_Err( p_stream, "cannot create decoder for fcc=`%4.4s'",
178 (char*)&p_fmt->i_codec );
180 if( p_sys->i_es == 0 )
181 vlc_object_release( p_sys->p_input );
189 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
191 input_DecoderDelete( id->p_dec );
192 if( --p_stream->p_sys->i_es == 0)
193 vlc_object_release( p_stream->p_sys->p_input );
199 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
202 sout_stream_sys_t *p_sys = p_stream->p_sys;
206 block_t *p_next = p_buffer->p_next;
208 p_buffer->p_next = NULL;
210 if( id->p_dec && p_buffer->i_buffer > 0 )
212 if( p_buffer->i_dts <= 0 )
215 p_buffer->i_dts += p_sys->i_delay;
217 if( p_buffer->i_pts <= 0 )
220 p_buffer->i_pts += p_sys->i_delay;
222 input_DecoderDecode( id->p_dec, p_buffer );