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 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
34 #include <vlc_input.h>
36 #include <vlc_block.h>
38 /*****************************************************************************
40 *****************************************************************************/
41 #define AUDIO_TEXT N_("Enable audio")
42 #define AUDIO_LONGTEXT N_( "Enable/disable audio rendering." )
43 #define VIDEO_TEXT N_("Enable video")
44 #define VIDEO_LONGTEXT N_( "Enable/disable video rendering." )
45 #define DELAY_TEXT N_("Delay")
46 #define DELAY_LONGTEXT N_( "Introduces a delay in the display of the stream." )
48 static int Open ( vlc_object_t * );
49 static void Close( vlc_object_t * );
51 #define SOUT_CFG_PREFIX "sout-display-"
54 set_shortname( N_("Display"))
55 set_description( N_("Display stream output") )
56 set_capability( "sout stream", 50 )
57 add_shortcut( "display" )
58 set_category( CAT_SOUT )
59 set_subcategory( SUBCAT_SOUT_STREAM )
60 add_bool( SOUT_CFG_PREFIX "audio", 1, NULL, AUDIO_TEXT,
61 AUDIO_LONGTEXT, true )
62 add_bool( SOUT_CFG_PREFIX "video", 1, NULL, VIDEO_TEXT,
63 VIDEO_LONGTEXT, true )
64 add_integer( SOUT_CFG_PREFIX "delay", 100, NULL, DELAY_TEXT,
65 DELAY_LONGTEXT, true )
66 set_callbacks( Open, Close )
70 /*****************************************************************************
72 *****************************************************************************/
73 static const char *const ppsz_sout_options[] = {
74 "audio", "video", "delay", NULL
77 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
78 static int Del ( sout_stream_t *, sout_stream_id_t * );
79 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
81 struct sout_stream_sys_t
83 input_thread_t *p_input;
92 /*****************************************************************************
94 *****************************************************************************/
95 static int Open( vlc_object_t *p_this )
97 sout_stream_t *p_stream = (sout_stream_t*)p_this;
98 sout_stream_sys_t *p_sys;
100 p_sys = malloc( sizeof( sout_stream_sys_t ) );
104 config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
107 p_sys->p_input = NULL;
109 p_sys->b_audio = var_GetBool( p_stream, SOUT_CFG_PREFIX"audio" );
110 p_sys->b_video = var_GetBool( p_stream, SOUT_CFG_PREFIX "video" );
111 p_sys->i_delay = var_GetInteger( p_stream, SOUT_CFG_PREFIX "delay" );
112 p_sys->i_delay *= 1000;
114 p_stream->pf_add = Add;
115 p_stream->pf_del = Del;
116 p_stream->pf_send = Send;
117 p_stream->p_sys = p_sys;
119 /* update p_sout->i_out_pace_nocontrol */
120 p_stream->p_sout->i_out_pace_nocontrol++;
125 /*****************************************************************************
127 *****************************************************************************/
128 static void Close( vlc_object_t * p_this )
130 sout_stream_t *p_stream = (sout_stream_t*)p_this;
131 sout_stream_sys_t *p_sys = p_stream->p_sys;
133 /* update p_sout->i_out_pace_nocontrol */
134 p_stream->p_sout->i_out_pace_nocontrol--;
139 struct sout_stream_id_t
144 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
146 sout_stream_sys_t *p_sys = p_stream->p_sys;
147 sout_stream_id_t *id;
149 if( ( p_fmt->i_cat == AUDIO_ES && !p_sys->b_audio )||
150 ( p_fmt->i_cat == VIDEO_ES && !p_sys->b_video ) )
155 id = malloc( sizeof( sout_stream_id_t ) );
159 if( p_sys->i_es == 0 )
161 p_sys->p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT,
163 if( p_sys->p_input == NULL )
165 msg_Err( p_stream, "cannot find input" );
171 id->p_dec = input_DecoderNew( p_sys->p_input, p_fmt, NULL, NULL );
172 if( id->p_dec == NULL )
174 msg_Err( p_stream, "cannot create decoder for fcc=`%4.4s'",
175 (char*)&p_fmt->i_codec );
177 if( p_sys->i_es == 0 )
178 vlc_object_release( p_sys->p_input );
186 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
188 input_DecoderDelete( id->p_dec );
189 if( --p_stream->p_sys->i_es == 0)
190 vlc_object_release( p_stream->p_sys->p_input );
196 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
199 sout_stream_sys_t *p_sys = p_stream->p_sys;
203 block_t *p_next = p_buffer->p_next;
205 p_buffer->p_next = NULL;
207 if( id->p_dec && p_buffer->i_buffer > 0 )
209 if( p_buffer->i_dts <= 0 )
212 p_buffer->i_dts += p_sys->i_delay;
214 if( p_buffer->i_pts <= 0 )
217 p_buffer->i_pts += p_sys->i_delay;
219 input_DecoderDecode( id->p_dec, p_buffer );