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 (ms)")
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 )
61 add_bool( SOUT_CFG_PREFIX "audio", true, AUDIO_TEXT,
62 AUDIO_LONGTEXT, true )
63 add_bool( SOUT_CFG_PREFIX "video", true, VIDEO_TEXT,
64 VIDEO_LONGTEXT, true )
65 add_integer( SOUT_CFG_PREFIX "delay", 100, DELAY_TEXT,
66 DELAY_LONGTEXT, true )
67 set_callbacks( Open, Close )
71 /*****************************************************************************
73 *****************************************************************************/
74 static const char *const ppsz_sout_options[] = {
75 "audio", "video", "delay", NULL
78 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
79 static int Del ( sout_stream_t *, sout_stream_id_t * );
80 static int Send( sout_stream_t *, sout_stream_id_t *, block_t* );
82 struct sout_stream_sys_t
84 input_thread_t *p_input;
93 /*****************************************************************************
95 *****************************************************************************/
96 static int Open( vlc_object_t *p_this )
98 sout_stream_t *p_stream = (sout_stream_t*)p_this;
99 sout_stream_sys_t *p_sys;
101 p_sys = malloc( sizeof( sout_stream_sys_t ) );
105 config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
108 p_sys->p_input = NULL;
110 p_sys->b_audio = var_GetBool( p_stream, SOUT_CFG_PREFIX"audio" );
111 p_sys->b_video = var_GetBool( p_stream, SOUT_CFG_PREFIX "video" );
112 p_sys->i_delay = var_GetInteger( p_stream, SOUT_CFG_PREFIX "delay" );
113 p_sys->i_delay = p_sys->i_delay * CLOCK_FREQ / 1000;
115 p_stream->pf_add = Add;
116 p_stream->pf_del = Del;
117 p_stream->pf_send = Send;
118 p_stream->p_sys = p_sys;
120 /* update p_sout->i_out_pace_nocontrol */
121 p_stream->p_sout->i_out_pace_nocontrol++;
126 /*****************************************************************************
128 *****************************************************************************/
129 static void Close( vlc_object_t * p_this )
131 sout_stream_t *p_stream = (sout_stream_t*)p_this;
132 sout_stream_sys_t *p_sys = p_stream->p_sys;
134 /* update p_sout->i_out_pace_nocontrol */
135 p_stream->p_sout->i_out_pace_nocontrol--;
140 struct sout_stream_id_t
145 static sout_stream_id_t * Add( sout_stream_t *p_stream, es_format_t *p_fmt )
147 sout_stream_sys_t *p_sys = p_stream->p_sys;
148 sout_stream_id_t *id;
150 if( ( p_fmt->i_cat == AUDIO_ES && !p_sys->b_audio )||
151 ( p_fmt->i_cat == VIDEO_ES && !p_sys->b_video ) )
156 id = malloc( sizeof( sout_stream_id_t ) );
160 if( p_sys->i_es == 0 )
162 p_sys->p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT,
164 if( p_sys->p_input == NULL )
166 msg_Err( p_stream, "cannot find input" );
172 id->p_dec = input_DecoderNew( p_sys->p_input, p_fmt, NULL, NULL );
173 if( id->p_dec == NULL )
175 msg_Err( p_stream, "cannot create decoder for fcc=`%4.4s'",
176 (char*)&p_fmt->i_codec );
178 if( p_sys->i_es == 0 )
179 vlc_object_release( p_sys->p_input );
187 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
189 input_DecoderDelete( id->p_dec );
190 if( --p_stream->p_sys->i_es == 0)
191 vlc_object_release( p_stream->p_sys->p_input );
197 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
200 sout_stream_sys_t *p_sys = p_stream->p_sys;
204 block_t *p_next = p_buffer->p_next;
206 p_buffer->p_next = NULL;
208 if( id->p_dec && p_buffer->i_buffer > 0 )
210 if( p_buffer->i_dts <= VLC_TS_INVALID )
213 p_buffer->i_dts += p_sys->i_delay;
215 if( p_buffer->i_pts <= VLC_TS_INVALID )
218 p_buffer->i_pts += p_sys->i_delay;
220 input_DecoderDecode( id->p_dec, p_buffer, false );