1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 1999-2004 the VideoLAN team
7 * Author: 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 *****************************************************************************/
26 #include <vlc/input.h>
28 #include "input_internal.h"
30 static void SkipID3Tag( demux_t * );
32 /*****************************************************************************
34 * if s is NULL then load a access_demux
35 *****************************************************************************/
36 demux_t *__demux2_New( vlc_object_t *p_obj,
37 char *psz_access, char *psz_demux, char *psz_path,
38 stream_t *s, es_out_t *out, vlc_bool_t b_quick )
40 demux_t *p_demux = vlc_object_create( p_obj, VLC_OBJECT_DEMUX );
43 if( p_demux == NULL ) return NULL;
46 p_demux->psz_access = strdup( psz_access );
47 p_demux->psz_demux = strdup( psz_demux );
48 p_demux->psz_path = strdup( psz_path );
50 /* Take into account "demux" to be able to do :demux=dump */
51 if( *p_demux->psz_demux == '\0' )
53 free( p_demux->psz_demux );
54 p_demux->psz_demux = var_GetString( p_obj, "demux" );
59 msg_Dbg( p_obj, "creating demux: access='%s' demux='%s' path='%s'",
60 p_demux->psz_access, p_demux->psz_demux, p_demux->psz_path );
66 p_demux->pf_demux = NULL;
67 p_demux->pf_control = NULL;
68 p_demux->p_sys = NULL;
69 p_demux->info.i_update = 0;
70 p_demux->info.i_title = 0;
71 p_demux->info.i_seekpoint = 0;
73 if( s ) psz_module = p_demux->psz_demux;
74 else psz_module = p_demux->psz_access;
76 if( s && *psz_module == '\0' && strrchr( p_demux->psz_path, '.' ) )
78 /* XXX: add only file without any problem here and with strong detection.
79 * - no .mp3, .a52, ... (aac is added as it works only by file ext anyway
80 * - wav can't be added 'cause of a52 and dts in them as raw audio
82 static struct { char *ext; char *demux; } exttodemux[] =
86 { "asf", "asf" }, { "wmv", "asf" }, { "wma", "asf" },
91 { "m3u", "playlist" },
92 { "mkv", "mkv" }, { "mka", "mkv" }, { "mks", "mkv" },
93 { "mp4", "mp4" }, { "m4a", "mp4" }, { "mov", "mp4" }, { "moov", "mp4" },
94 { "mod", "mod" }, { "xm", "mod" },
96 { "ogg", "ogg" }, { "ogm", "ogg" },
101 /* Here, we don't mind if it does not work, it must be quick */
102 static struct { char *ext; char *demux; } exttodemux_quick[] =
110 char *psz_ext = strrchr( p_demux->psz_path, '.' ) + 1;
115 for( i = 0; exttodemux[i].ext != NULL; i++ )
117 if( !strcasecmp( psz_ext, exttodemux[i].ext ) )
119 psz_module = exttodemux[i].demux;
126 for( i = 0; exttodemux_quick[i].ext != NULL; i++ )
128 if( !strcasecmp( psz_ext, exttodemux_quick[i].ext ) )
130 psz_module = exttodemux_quick[i].demux;
138 /* Before module_Need (for var_Create...) */
139 vlc_object_attach( p_demux, p_obj );
143 /* ID3 tags will mess-up demuxer probing so we skip it here.
144 * ID3 parsers will called later on in the demuxer to access the
146 SkipID3Tag( p_demux );
149 module_Need( p_demux, "demux2", psz_module,
150 !strcmp( psz_module, p_demux->psz_demux ) ?
151 VLC_TRUE : VLC_FALSE );
156 module_Need( p_demux, "access_demux", psz_module,
157 !strcmp( psz_module, p_demux->psz_access ) ?
158 VLC_TRUE : VLC_FALSE );
161 if( p_demux->p_module == NULL )
163 vlc_object_detach( p_demux );
164 free( p_demux->psz_path );
165 free( p_demux->psz_demux );
166 free( p_demux->psz_access );
167 vlc_object_destroy( p_demux );
174 /*****************************************************************************
176 *****************************************************************************/
177 void demux2_Delete( demux_t *p_demux )
179 module_Unneed( p_demux, p_demux->p_module );
180 vlc_object_detach( p_demux );
182 free( p_demux->psz_path );
183 free( p_demux->psz_demux );
184 free( p_demux->psz_access );
186 vlc_object_destroy( p_demux );
189 /*****************************************************************************
190 * demux2_vaControlHelper:
191 *****************************************************************************/
192 int demux2_vaControlHelper( stream_t *s,
193 int64_t i_start, int64_t i_end,
194 int i_bitrate, int i_align,
195 int i_query, va_list args )
201 if( i_end < 0 ) i_end = stream_Size( s );
202 if( i_start < 0 ) i_start = 0;
203 if( i_align <= 0 ) i_align = 1;
204 i_tell = stream_Tell( s );
208 case DEMUX_GET_LENGTH:
209 pi64 = (int64_t*)va_arg( args, int64_t * );
210 if( i_bitrate > 0 && i_end > i_start )
212 *pi64 = I64C(8000000) * (i_end - i_start) / i_bitrate;
218 pi64 = (int64_t*)va_arg( args, int64_t * );
219 if( i_bitrate > 0 && i_end > i_start )
221 *pi64 = I64C(8000000) * (i_tell - i_start) / i_bitrate;
226 case DEMUX_GET_POSITION:
227 pf = (double*)va_arg( args, double * );
228 if( i_start < i_end )
230 *pf = (double)( i_tell - i_start ) /
231 (double)( i_end - i_start );
237 case DEMUX_SET_POSITION:
238 f = (double)va_arg( args, double );
239 if( i_start < i_end && f >= 0.0 && f <= 1.0 )
241 int64_t i_block = (f * ( i_end - i_start )) / i_align;
243 if( stream_Seek( s, i_start + i_block * i_align ) )
252 i64 = (int64_t)va_arg( args, int64_t );
253 if( i_bitrate > 0 && i64 >= 0 )
255 int64_t i_block = i64 * i_bitrate / I64C(8000000) / i_align;
256 if( stream_Seek( s, i_start + i_block * i_align ) )
266 case DEMUX_SET_NEXT_DEMUX_TIME:
267 case DEMUX_GET_TITLE_INFO:
268 case DEMUX_SET_GROUP:
272 msg_Err( s, "unknown query in demux_vaControlDefault" );
277 /****************************************************************************
278 * stream_Demux*: create a demuxer for an outpout stream (allow demuxer chain)
279 ****************************************************************************/
283 block_fifo_t *p_fifo;
295 static int DStreamRead ( stream_t *, void *p_read, int i_read );
296 static int DStreamPeek ( stream_t *, uint8_t **pp_peek, int i_peek );
297 static int DStreamControl( stream_t *, int i_query, va_list );
298 static int DStreamThread ( stream_t * );
301 stream_t *__stream_DemuxNew( vlc_object_t *p_obj, char *psz_demux,
304 /* We create a stream reader, and launch a thread */
306 d_stream_sys_t *p_sys;
308 if( psz_demux == NULL || *psz_demux == '\0' ) return NULL;
310 s = vlc_object_create( p_obj, VLC_OBJECT_STREAM );
312 s->pf_read = DStreamRead;
313 s->pf_peek = DStreamPeek;
314 s->pf_control= DStreamControl;
317 s->b_little_endian = VLC_FALSE;
319 s->p_sys = malloc( sizeof( d_stream_sys_t) );
320 p_sys = (d_stream_sys_t*)s->p_sys;
324 p_sys->p_demux = NULL;
325 p_sys->p_block = NULL;
326 p_sys->psz_name = strdup( psz_demux );
329 if( ( p_sys->p_fifo = block_FifoNew( s ) ) == NULL )
331 msg_Err( s, "out of memory" );
332 vlc_object_destroy( s );
337 if( vlc_thread_create( s, "stream out", DStreamThread,
338 VLC_THREAD_PRIORITY_INPUT, VLC_FALSE ) )
340 vlc_object_destroy( s );
348 void stream_DemuxSend( stream_t *s, block_t *p_block )
350 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
351 if( p_block ) block_FifoPut( p_sys->p_fifo, p_block );
354 void stream_DemuxDelete( stream_t *s )
356 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
360 if( p_sys->p_demux ) p_sys->p_demux->b_die = VLC_TRUE;
361 p_empty = block_New( s, 1 ); p_empty->i_buffer = 0;
362 block_FifoPut( p_sys->p_fifo, p_empty );
363 vlc_thread_join( s );
365 if( p_sys->p_demux ) demux2_Delete( p_sys->p_demux );
366 if( p_sys->p_block ) block_Release( p_sys->p_block );
368 block_FifoRelease( p_sys->p_fifo );
369 free( p_sys->psz_name );
372 vlc_object_destroy( s );
376 static int DStreamRead( stream_t *s, void *p_read, int i_read )
378 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
379 uint8_t *p_out = p_read;
382 //msg_Dbg( s, "DStreamRead: wanted %d bytes", i_read );
384 while( !s->b_die && !s->b_error && i_read )
386 block_t *p_block = p_sys->p_block;
391 p_block = block_FifoGet( p_sys->p_fifo );
392 if( !p_block ) s->b_error = 1;
393 p_sys->p_block = p_block;
396 if( p_block && i_read )
398 i_copy = __MIN( i_read, p_block->i_buffer );
399 if( p_out && i_copy ) memcpy( p_out, p_block->p_buffer, i_copy );
402 p_block->i_buffer -= i_copy;
403 p_block->p_buffer += i_copy;
405 if( !p_block->i_buffer )
407 block_Release( p_block );
408 p_sys->p_block = NULL;
413 p_sys->i_pos += i_out;
417 static int DStreamPeek( stream_t *s, uint8_t **pp_peek, int i_peek )
419 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
420 block_t **pp_block = &p_sys->p_block;
424 //msg_Dbg( s, "DStreamPeek: wanted %d bytes", i_peek );
426 while( !s->b_die && !s->b_error && i_peek )
432 *pp_block = block_FifoGet( p_sys->p_fifo );
433 if( !*pp_block ) s->b_error = 1;
436 if( *pp_block && i_peek )
438 i_copy = __MIN( i_peek, (*pp_block)->i_buffer );
442 if( i_peek ) pp_block = &(*pp_block)->p_next;
448 p_sys->p_block = block_ChainGather( p_sys->p_block );
449 *pp_peek = p_sys->p_block->p_buffer;
455 static int DStreamControl( stream_t *s, int i_query, va_list args )
457 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
464 case STREAM_GET_SIZE:
465 p_i64 = (int64_t*) va_arg( args, int64_t * );
469 case STREAM_CAN_SEEK:
470 p_b = (vlc_bool_t*) va_arg( args, vlc_bool_t * );
474 case STREAM_CAN_FASTSEEK:
475 p_b = (vlc_bool_t*) va_arg( args, vlc_bool_t * );
479 case STREAM_GET_POSITION:
480 p_i64 = (int64_t*) va_arg( args, int64_t * );
481 *p_i64 = p_sys->i_pos;
484 case STREAM_SET_POSITION:
486 int64_t i64 = (int64_t)va_arg( args, int64_t );
488 if( i64 < p_sys->i_pos ) return VLC_EGENERIC;
489 i_skip = i64 - p_sys->i_pos;
493 int i_read = DStreamRead( s, NULL, i_skip );
494 if( i_read <= 0 ) return VLC_EGENERIC;
501 p_int = (int*) va_arg( args, int * );
505 case STREAM_CONTROL_ACCESS:
509 msg_Err( s, "invalid DStreamControl query=0x%x", i_query );
514 static int DStreamThread( stream_t *s )
516 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
519 /* Create the demuxer */
520 if( !(p_demux = demux2_New( s, "", p_sys->psz_name, "", s, p_sys->out,
526 p_sys->p_demux = p_demux;
529 while( !s->b_die && !p_demux->b_die )
531 if( p_demux->pf_demux( p_demux ) <= 0 ) break;
534 p_demux->b_die = VLC_TRUE;
538 /****************************************************************************
540 ****************************************************************************/
541 static void SkipID3Tag( demux_t *p_demux )
544 uint8_t version, revision;
548 if( !p_demux->s ) return;
550 /* Get 10 byte id3 header */
551 if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return;
553 if( p_peek[0] != 'I' || p_peek[1] != 'D' || p_peek[2] != '3' ) return;
556 revision = p_peek[4];
557 b_footer = p_peek[5] & 0x10;
558 i_size = (p_peek[6]<<21) + (p_peek[7]<<14) + (p_peek[8]<<7) + p_peek[9];
560 if( b_footer ) i_size += 10;
563 /* Skip the entire tag */
564 stream_Read( p_demux->s, NULL, i_size );
566 msg_Dbg( p_demux, "ID3v2.%d revision %d tag found, skiping %d bytes",
567 version, revision, i_size );