1 /*****************************************************************************
2 * mpjpeg.c: mime multipart jpeg muxer module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
5 * $Id: dummy.c 7047 2004-03-11 17:37:50Z fenrir $
7 * Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
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 *****************************************************************************/
32 #define SEPARATOR_TEXT N_( "Multipart separator string" )
33 #define SEPARATOR_LONGTEXT N_( "Multipart strings like MPJPEG use a " \
34 "separator string betwen content pieces. "\
35 "You can select this string. Default is "\
39 #define CONTENT_TYPE "Content-Type: image/jpeg"
40 /*****************************************************************************
42 *****************************************************************************/
43 static int Open ( vlc_object_t * );
44 static void Close ( vlc_object_t * );
46 #define SOUT_CFG_PREFIX "sout-mpjpeg-"
49 set_description( _("Multipart jpeg muxer") );
50 set_capability( "sout mux", 5 );
51 add_string( SOUT_CFG_PREFIX "separator", "--myboundary", NULL,
52 SEPARATOR_TEXT, SEPARATOR_LONGTEXT, VLC_TRUE );
53 set_category( CAT_SOUT );
54 set_subcategory( SUBCAT_SOUT_MUX );
55 set_callbacks( Open, Close );
56 add_shortcut( "mpjpeg" );
59 /*****************************************************************************
61 *****************************************************************************/
62 static const char *ppsz_sout_options[] = { "separator", NULL };
64 static int Control ( sout_mux_t *, int, va_list );
65 static int AddStream( sout_mux_t *, sout_input_t * );
66 static int DelStream( sout_mux_t *, sout_input_t * );
67 static int Mux ( sout_mux_t * );
72 vlc_bool_t b_send_headers;
75 /*****************************************************************************
77 *****************************************************************************/
78 static int Open( vlc_object_t *p_this )
81 sout_mux_t *p_mux = (sout_mux_t*)p_this;
82 sout_mux_sys_t *p_sys;
83 char *psz_separator_block, *psz_separator;
85 msg_Dbg( p_mux, "Multipart jpeg muxer opened" );
87 p_sys = p_mux->p_sys = malloc( sizeof(sout_mux_sys_t) );
88 p_sys->b_send_headers = VLC_TRUE;
90 psz_separator = var_CreateGetString( p_mux, SOUT_CFG_PREFIX "separator" );
91 i_size = strlen( psz_separator ) + 2 + 2 + 2 + strlen( CONTENT_TYPE );
92 psz_separator_block = (char*)malloc( i_size );
93 sprintf( psz_separator_block, "\r\n%s\r\n%s\r\n", psz_separator,
95 p_sys->p_separator = block_New( p_mux, i_size );
96 memcpy( p_sys->p_separator->p_buffer, psz_separator_block , i_size );
98 if( psz_separator_block ) free( psz_separator_block );
100 p_mux->pf_control = Control;
101 p_mux->pf_addstream = AddStream;
102 p_mux->pf_delstream = DelStream;
108 /*****************************************************************************
110 *****************************************************************************/
112 static void Close( vlc_object_t * p_this )
114 sout_mux_t *p_mux = (sout_mux_t*)p_this;
115 sout_mux_sys_t *p_sys = p_mux->p_sys;
117 msg_Dbg( p_mux, "Multipart jpeg muxer closed" );
118 block_Release( p_sys->p_separator );
122 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
129 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
130 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
134 case MUX_GET_ADD_STREAM_WAIT:
135 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
140 ppsz = (char**)va_arg( args, char ** );
141 *ppsz = strdup( "multipart/x-mixed-replace; boundary=This Random String" );
149 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
151 if( p_mux->i_nb_inputs > 1 )
153 msg_Dbg( p_mux, "only 1 input allowed" );
157 msg_Dbg( p_mux, "adding input" );
158 if( p_input->p_fmt->i_codec != VLC_FOURCC('M','J','P','G') &&
159 p_input->p_fmt->i_codec != VLC_FOURCC('m','j','p','g') &&
160 p_input->p_fmt->i_codec != VLC_FOURCC('j','p','e','g') &&
161 p_input->p_fmt->i_codec != VLC_FOURCC('J','P','E','G') &&
162 p_input->p_fmt->i_codec != VLC_FOURCC('J','F','I','F') &&
163 p_input->p_fmt->i_codec != VLC_FOURCC('J','P','G','L') &&
164 p_input->p_fmt->i_codec != VLC_FOURCC('m','j','p','a') )
172 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
174 msg_Dbg( p_mux, "removing input" );
178 static int Mux( sout_mux_t *p_mux )
180 block_fifo_t *p_fifo;
181 sout_mux_sys_t *p_sys = p_mux->p_sys;
183 /* Content-Length:.......\r\n */
184 char psz_content_length[25];
186 if( p_sys->b_send_headers )
189 char *psz_separator = var_CreateGetString( p_mux,
190 SOUT_CFG_PREFIX "separator" );
191 char *psz_separator_block = (char *)malloc( strlen( psz_separator ) +
192 2 + strlen( CONTENT_TYPE ) );
194 sprintf( psz_separator_block, "%s\r\n%s\r\n", psz_separator,
197 p_header = block_New( p_mux, strlen( psz_separator_block ) );
198 memcpy( p_header->p_buffer, psz_separator_block ,
199 strlen( psz_separator_block ) );
200 p_header->i_flags |= BLOCK_FLAG_HEADER;
201 sout_AccessOutWrite( p_mux->p_access, p_header );
202 p_sys->b_send_headers = VLC_FALSE;
203 if( psz_separator_block ) free( psz_separator_block );
206 if( !p_mux->i_nb_inputs ) return VLC_SUCCESS;
208 p_fifo = p_mux->pp_inputs[0]->p_fifo;
209 i_count = p_fifo->i_depth;
212 block_t *p_length = block_New( p_mux, 25 );
213 block_t *p_data = block_FifoGet( p_fifo );
214 sout_AccessOutWrite( p_mux->p_access,
215 block_Duplicate( p_sys->p_separator ) );
216 memset( psz_content_length, 0, 25 );
217 snprintf( psz_content_length, 25, "Content-Length: %i\r\n\r\n",
219 memcpy( p_length->p_buffer, psz_content_length, 25 );
220 sout_AccessOutWrite( p_mux->p_access, p_length );
221 sout_AccessOutWrite( p_mux->p_access, p_data );