es.c 9.34 KB
Newer Older
1
2
3
4
/*****************************************************************************
 * es.c
 *****************************************************************************
 * Copyright (C) 2001, 2002 VideoLAN
5
 * $Id: es.c,v 1.4 2003/11/21 15:32:08 fenrir Exp $
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 *
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>
#include <string.h>

#include <vlc/vlc.h>
#include <vlc/input.h>
#include <vlc/sout.h>

#define FREE( p ) if( p ) { free( p ); (p) = NULL; }
/*****************************************************************************
 * Exported prototypes
 *****************************************************************************/
static int      Open    ( vlc_object_t * );
static void     Close   ( vlc_object_t * );

41
static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
static int               Del ( sout_stream_t *, sout_stream_id_t * );
static int               Send( sout_stream_t *, sout_stream_id_t *, sout_buffer_t* );

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
vlc_module_begin();
    set_description( _("ES stream") );
    set_capability( "sout stream", 50 );
    add_shortcut( "es" );
    add_shortcut( "es" );
    set_callbacks( Open, Close );
vlc_module_end();

struct sout_stream_sys_t
{
    int  i_count_audio;
    int  i_count_video;
    int  i_count;

    char *psz_mux;
    char *psz_mux_audio;
    char *psz_mux_video;

    char *psz_access;
    char *psz_access_audio;
    char *psz_access_video;

    char *psz_url;
    char *psz_url_audio;
    char *psz_url_video;
};

/*****************************************************************************
 * Open:
 *****************************************************************************/
static int Open( vlc_object_t *p_this )
{
    sout_stream_t       *p_stream = (sout_stream_t*)p_this;
    sout_stream_sys_t   *p_sys;

83
    /* p_sout->i_preheader = __MAX( p_sout->i_preheader, p_mux->i_preheader ); */
84
85
86
87
88
89
90
91

    p_sys                   = malloc( sizeof( sout_stream_sys_t ) );

    p_sys->i_count          = 0;
    p_sys->i_count_audio    = 0;
    p_sys->i_count_video    = 0;

    p_sys->psz_access       = sout_cfg_find_value( p_stream->p_cfg, "access" );
Alexis de Lattre's avatar
Alexis de Lattre committed
92
    p_sys->psz_access_audio = sout_cfg_find_value( p_stream->p_cfg, "access_audio" );
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
    p_sys->psz_access_video = sout_cfg_find_value( p_stream->p_cfg, "access_video" );


    p_sys->psz_mux          = sout_cfg_find_value( p_stream->p_cfg, "mux" );
    p_sys->psz_mux_audio    = sout_cfg_find_value( p_stream->p_cfg, "mux_audio" );
    p_sys->psz_mux_video    = sout_cfg_find_value( p_stream->p_cfg, "mux_video" );

    p_sys->psz_url         = sout_cfg_find_value( p_stream->p_cfg, "url" );
    p_sys->psz_url_audio   = sout_cfg_find_value( p_stream->p_cfg, "url_audio" );
    p_sys->psz_url_video   = sout_cfg_find_value( p_stream->p_cfg, "url_video" );

    p_stream->pf_add    = Add;
    p_stream->pf_del    = Del;
    p_stream->pf_send   = Send;

    p_stream->p_sys     = p_sys;

    return VLC_SUCCESS;
}

/*****************************************************************************
 * Close:
 *****************************************************************************/

static void Close( vlc_object_t * p_this )
{
    sout_stream_t     *p_stream = (sout_stream_t*)p_this;
    sout_stream_sys_t *p_sys = p_stream->p_sys;

    free( p_sys );
}

struct sout_stream_id_t
{
    sout_input_t *p_input;
    sout_mux_t   *p_mux;
};

static char * es_print_url( char *psz_fmt, vlc_fourcc_t i_fourcc, int i_count, char *psz_access, char *psz_mux )
{
    char *psz_url, *p;

    if( psz_fmt == NULL || !*psz_fmt )
    {
        psz_fmt = "stream-%n-%c.%m";
    }

    p = psz_url = malloc( 4096 );
    memset( p, 0, 4096 );
    for( ;; )
    {
        if( *psz_fmt == '\0' )
        {
            *p = '\0';
            break;
        }

        if( *psz_fmt != '%' )
        {
            *p++ = *psz_fmt++;
        }
        else
        {
            if( psz_fmt[1] == 'n' )
            {
                p += sprintf( p, "%d", i_count );
            }
            else if( psz_fmt[1] == 'c' )
            {
                p += sprintf( p, "%4.4s", (char*)&i_fourcc );
            }
            else if( psz_fmt[1] == 'm' )
            {
                p += sprintf( p, "%s", psz_mux );
            }
            else if( psz_fmt[1] == 'a' )
            {
                p += sprintf( p, "%s", psz_access );
            }
            else if( psz_fmt[1] != '\0' )
            {
                p += sprintf( p, "%c%c", psz_fmt[0], psz_fmt[1] );
            }
            else
            {
                p += sprintf( p, "%c", psz_fmt[0] );
                *p++ = '\0';
                break;
            }
            psz_fmt += 2;
        }
    }

    return( psz_url );
}

189
static sout_stream_id_t * Add      ( sout_stream_t *p_stream, es_format_t *p_fmt )
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
{
    sout_stream_sys_t *p_sys = p_stream->p_sys;
    sout_instance_t   *p_sout = p_stream->p_sout;
    sout_stream_id_t  *id;

    char              *psz_access;
    char              *psz_mux;
    char              *psz_url;

    sout_access_out_t *p_access;
    sout_mux_t        *p_mux;

    /* *** get access name *** */
    if( p_fmt->i_cat == AUDIO_ES && p_sys->psz_access_audio )
    {
        psz_access = p_sys->psz_access_audio;
    }
    else if( p_fmt->i_cat == VIDEO_ES && p_sys->psz_access_video )
    {
        psz_access = p_sys->psz_access_video;
    }
    else
    {
        psz_access = p_sys->psz_access;
    }

    /* *** get mux name *** */
    if( p_fmt->i_cat == AUDIO_ES && p_sys->psz_mux_audio )
    {
        psz_mux = p_sys->psz_mux_audio;
    }
    else if( p_fmt->i_cat == VIDEO_ES && p_sys->psz_mux_video )
    {
        psz_mux = p_sys->psz_mux_video;
    }
    else
    {
        psz_mux = p_sys->psz_mux;
    }

    /* *** get url (%d expanded as a codec count, %c expanded as codec fcc ) *** */
    if( p_fmt->i_cat == AUDIO_ES && p_sys->psz_url_audio )
    {
233
        psz_url = es_print_url( p_sys->psz_url_audio, p_fmt->i_codec, p_sys->i_count_audio, psz_access, psz_mux );
234
235
236
    }
    else if( p_fmt->i_cat == VIDEO_ES && p_sys->psz_url_video )
    {
237
        psz_url = es_print_url( p_sys->psz_url_video, p_fmt->i_codec, p_sys->i_count_video, psz_access, psz_mux );
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
    }
    else
    {
        int i_count;
        if( p_fmt->i_cat == VIDEO_ES )
        {
            i_count = p_sys->i_count_video;
        }
        else if( p_fmt->i_cat == AUDIO_ES )
        {
            i_count = p_sys->i_count_audio;
        }
        else
        {
            i_count = p_sys->i_count;
        }

255
        psz_url = es_print_url( p_sys->psz_url, p_fmt->i_codec, i_count, psz_access, psz_mux );
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
    }

    p_sys->i_count++;
    if( p_fmt->i_cat == VIDEO_ES )
    {
        p_sys->i_count_video++;
    }
    else if( p_fmt->i_cat == AUDIO_ES )
    {
        p_sys->i_count_audio++;
    }
    msg_Dbg( p_stream, "creating `%s/%s://%s'",
             psz_access, psz_mux, psz_url );

    /* *** find and open appropriate access module *** */
    p_access = sout_AccessOutNew( p_sout, psz_access, psz_url );
    if( p_access == NULL )
    {
        msg_Err( p_stream, "no suitable sout access module for `%s/%s://%s'",
                 psz_access, psz_mux, psz_url );
        return( NULL );
    }

    /* *** find and open appropriate mux module *** */
    p_mux = sout_MuxNew( p_sout, psz_mux, p_access );
    if( p_mux == NULL )
    {
        msg_Err( p_stream, "no suitable sout mux module for `%s/%s://%s'",
                 psz_access, psz_mux, psz_url );
        sout_AccessOutDelete( p_access );
        return( NULL );
    }

    /* XXX beurk */
    p_sout->i_preheader = __MAX( p_sout->i_preheader, p_mux->i_preheader );

    id = malloc( sizeof( sout_stream_id_t ) );
    id->p_mux = p_mux;
    id->p_input = sout_MuxAddStream( p_mux, p_fmt );

    if( id->p_input == NULL )
    {
        free( id );

        sout_MuxDelete( p_mux );
        sout_AccessOutDelete( p_access );
        free( id );
        return NULL;
    }

    return id;
}

static int     Del      ( sout_stream_t *p_stream, sout_stream_id_t *id )
{
    sout_access_out_t *p_access = id->p_mux->p_access;

    sout_MuxDeleteStream( id->p_mux, id->p_input );
    sout_AccessOutDelete( p_access );

    free( id );
    return VLC_SUCCESS;
}

static int     Send     ( sout_stream_t *p_stream, sout_stream_id_t *id, sout_buffer_t *p_buffer )
{
    sout_MuxSendBuffer( id->p_mux, id->p_input, p_buffer );

    return VLC_SUCCESS;
}