1 /*****************************************************************************
2 * display.c: display stream output module
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
31 #include <vlc/input.h>
34 /*****************************************************************************
36 *****************************************************************************/
37 #define AUDIO_TEXT N_("Enable audio")
38 #define AUDIO_LONGTEXT N_( "Enable/disable audio rendering." )
39 #define VIDEO_TEXT N_("Enable video")
40 #define VIDEO_LONGTEXT N_( "Enable/disable video rendering." )
41 #define DELAY_TEXT N_("Delay")
42 #define DELAY_LONGTEXT N_( "Introduces a delay in the display of the stream." )
44 static int Open ( vlc_object_t * );
45 static void Close( vlc_object_t * );
47 #define SOUT_CFG_PREFIX "sout-display-"
50 set_description( _("Display stream output") );
51 set_capability( "sout stream", 50 );
52 add_shortcut( "display" );
53 add_bool( SOUT_CFG_PREFIX "audio", 1, NULL, AUDIO_TEXT,
54 AUDIO_LONGTEXT, VLC_TRUE );
55 add_bool( SOUT_CFG_PREFIX "video", 1, NULL, VIDEO_TEXT,
56 VIDEO_LONGTEXT, VLC_TRUE );
57 add_integer( SOUT_CFG_PREFIX "delay", 100, NULL, DELAY_TEXT,
58 DELAY_LONGTEXT, VLC_TRUE );
59 set_callbacks( Open, Close );
63 /*****************************************************************************
65 *****************************************************************************/
66 static const char *ppsz_sout_options[] = {
67 "audio", "video", "delay", NULL
70 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
71 static int Del ( sout_stream_t *, sout_stream_id_t * );
72 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
74 struct sout_stream_sys_t
76 input_thread_t *p_input;
84 /*****************************************************************************
86 *****************************************************************************/
87 static int Open( vlc_object_t *p_this )
89 sout_stream_t *p_stream = (sout_stream_t*)p_this;
90 sout_stream_sys_t *p_sys;
93 sout_CfgParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
96 p_sys = malloc( sizeof( sout_stream_sys_t ) );
97 p_sys->p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT,
101 msg_Err( p_stream, "cannot find p_input" );
106 var_Get( p_stream, SOUT_CFG_PREFIX "audio", &val );
107 p_sys->b_audio = val.b_bool;
109 var_Get( p_stream, SOUT_CFG_PREFIX "video", &val );
110 p_sys->b_video = val.b_bool;
112 var_Get( p_stream, SOUT_CFG_PREFIX "delay", &val );
113 p_sys->i_delay = (int64_t)val.i_int * 1000;
115 p_stream->pf_add = Add;
116 p_stream->pf_del = Del;
117 p_stream->pf_send = Send;
119 p_stream->p_sys = p_sys;
121 /* update p_sout->i_out_pace_nocontrol */
122 p_stream->p_sout->i_out_pace_nocontrol++;
127 /*****************************************************************************
129 *****************************************************************************/
130 static void Close( vlc_object_t * p_this )
132 sout_stream_t *p_stream = (sout_stream_t*)p_this;
133 sout_stream_sys_t *p_sys = p_stream->p_sys;
135 /* update p_sout->i_out_pace_nocontrol */
136 p_stream->p_sout->i_out_pace_nocontrol--;
138 vlc_object_release( p_sys->p_input );
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 ) );
160 id->p_dec = input_DecoderNew( p_sys->p_input, p_fmt, VLC_TRUE );
161 if( id->p_dec == NULL )
163 msg_Err( p_stream, "cannot create decoder for fcc=`%4.4s'",
164 (char*)&p_fmt->i_codec );
172 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
174 input_DecoderDelete( id->p_dec );
179 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
182 sout_stream_sys_t *p_sys = p_stream->p_sys;
186 block_t *p_next = p_buffer->p_next;
188 p_buffer->p_next = NULL;
190 if( id->p_dec && p_buffer->i_buffer > 0 )
192 if( p_buffer->i_dts <= 0 )
195 p_buffer->i_dts += p_sys->i_delay;
197 if( p_buffer->i_pts <= 0 )
200 p_buffer->i_pts += p_sys->i_delay;
202 input_DecoderDecode( id->p_dec, p_buffer );