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 *****************************************************************************/
27 #include "input_internal.h"
29 static void SkipID3Tag( demux_t * );
31 /*****************************************************************************
33 * if s is NULL then load a access_demux
34 *****************************************************************************/
35 demux_t *__demux2_New( vlc_object_t *p_obj,
36 const char *psz_access, const char *psz_demux,
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 );
41 const char *psz_module;
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
81 * - wav can't be added 'cause of a52 and dts in them as raw audio
83 static const struct { char ext[5]; char demux[9]; } exttodemux[] =
87 { "asf", "asf" }, { "wmv", "asf" }, { "wma", "asf" },
92 { "m3u", "playlist" },
93 { "mkv", "mkv" }, { "mka", "mkv" }, { "mks", "mkv" },
94 { "mp4", "mp4" }, { "m4a", "mp4" }, { "mov", "mp4" }, { "moov", "mp4" },
95 { "mod", "mod" }, { "xm", "mod" },
97 { "ogg", "ogg" }, { "ogm", "ogg" },
104 /* Here, we don't mind if it does not work, it must be quick */
105 static const struct { char ext[4]; char demux[5]; } exttodemux_quick[] =
113 const char *psz_ext = strrchr( p_demux->psz_path, '.' ) + 1;
118 for( i = 0; exttodemux[i].ext[0]; i++ )
120 if( !strcasecmp( psz_ext, exttodemux[i].ext ) )
122 psz_module = exttodemux[i].demux;
129 for( i = 0; exttodemux_quick[i].ext[0]; i++ )
131 if( !strcasecmp( psz_ext, exttodemux_quick[i].ext ) )
133 psz_module = exttodemux_quick[i].demux;
141 /* Before module_Need (for var_Create...) */
142 vlc_object_attach( p_demux, p_obj );
146 /* ID3 tags will mess-up demuxer probing so we skip it here.
147 * ID3 parsers will called later on in the demuxer to access the
149 SkipID3Tag( p_demux );
152 module_Need( p_demux, "demux2", psz_module,
153 !strcmp( psz_module, p_demux->psz_demux ) ?
154 VLC_TRUE : VLC_FALSE );
159 module_Need( p_demux, "access_demux", psz_module,
160 !strcmp( psz_module, p_demux->psz_access ) ?
161 VLC_TRUE : VLC_FALSE );
164 if( p_demux->p_module == NULL )
166 vlc_object_detach( p_demux );
167 free( p_demux->psz_path );
168 free( p_demux->psz_demux );
169 free( p_demux->psz_access );
170 vlc_object_destroy( p_demux );
177 /*****************************************************************************
179 *****************************************************************************/
180 void demux2_Delete( demux_t *p_demux )
182 module_Unneed( p_demux, p_demux->p_module );
183 vlc_object_detach( p_demux );
185 free( p_demux->psz_path );
186 free( p_demux->psz_demux );
187 free( p_demux->psz_access );
189 vlc_object_destroy( p_demux );
192 /*****************************************************************************
193 * demux2_vaControlHelper:
194 *****************************************************************************/
195 int demux2_vaControlHelper( stream_t *s,
196 int64_t i_start, int64_t i_end,
197 int i_bitrate, int i_align,
198 int i_query, va_list args )
204 if( i_end < 0 ) i_end = stream_Size( s );
205 if( i_start < 0 ) i_start = 0;
206 if( i_align <= 0 ) i_align = 1;
207 i_tell = stream_Tell( s );
211 case DEMUX_GET_LENGTH:
212 pi64 = (int64_t*)va_arg( args, int64_t * );
213 if( i_bitrate > 0 && i_end > i_start )
215 *pi64 = I64C(8000000) * (i_end - i_start) / i_bitrate;
221 pi64 = (int64_t*)va_arg( args, int64_t * );
222 if( i_bitrate > 0 && i_end > i_start )
224 *pi64 = I64C(8000000) * (i_tell - i_start) / i_bitrate;
229 case DEMUX_GET_POSITION:
230 pf = (double*)va_arg( args, double * );
231 if( i_start < i_end )
233 *pf = (double)( i_tell - i_start ) /
234 (double)( i_end - i_start );
240 case DEMUX_SET_POSITION:
241 f = (double)va_arg( args, double );
242 if( i_start < i_end && f >= 0.0 && f <= 1.0 )
244 int64_t i_block = (f * ( i_end - i_start )) / i_align;
246 if( stream_Seek( s, i_start + i_block * i_align ) )
255 i64 = (int64_t)va_arg( args, int64_t );
256 if( i_bitrate > 0 && i64 >= 0 )
258 int64_t i_block = i64 * i_bitrate / I64C(8000000) / i_align;
259 if( stream_Seek( s, i_start + i_block * i_align ) )
269 case DEMUX_SET_NEXT_DEMUX_TIME:
270 case DEMUX_GET_TITLE_INFO:
271 case DEMUX_SET_GROUP:
275 msg_Err( s, "unknown query in demux_vaControlDefault" );
280 /****************************************************************************
281 * stream_Demux*: create a demuxer for an outpout stream (allow demuxer chain)
282 ****************************************************************************/
286 block_fifo_t *p_fifo;
298 static int DStreamRead ( stream_t *, void *p_read, int i_read );
299 static int DStreamPeek ( stream_t *, uint8_t **pp_peek, int i_peek );
300 static int DStreamControl( stream_t *, int i_query, va_list );
301 static int DStreamThread ( stream_t * );
304 stream_t *__stream_DemuxNew( vlc_object_t *p_obj, const char *psz_demux,
307 /* We create a stream reader, and launch a thread */
309 d_stream_sys_t *p_sys;
311 if( psz_demux == NULL || *psz_demux == '\0' ) return NULL;
313 s = vlc_stream_create( p_obj );
315 s->pf_read = DStreamRead;
316 s->pf_peek = DStreamPeek;
317 s->pf_control= DStreamControl;
320 s->b_little_endian = VLC_FALSE;
322 s->p_sys = malloc( sizeof( d_stream_sys_t) );
323 p_sys = (d_stream_sys_t*)s->p_sys;
327 p_sys->p_demux = NULL;
328 p_sys->p_block = NULL;
329 p_sys->psz_name = strdup( psz_demux );
332 if( ( p_sys->p_fifo = block_FifoNew( s ) ) == NULL )
334 msg_Err( s, "out of memory" );
335 vlc_object_destroy( s );
340 if( vlc_thread_create( s, "stream out", DStreamThread,
341 VLC_THREAD_PRIORITY_INPUT, VLC_FALSE ) )
343 vlc_object_destroy( s );
351 void stream_DemuxSend( stream_t *s, block_t *p_block )
353 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
354 if( p_block ) block_FifoPut( p_sys->p_fifo, p_block );
357 void stream_DemuxDelete( stream_t *s )
359 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
362 vlc_object_kill( s );
364 vlc_object_kill( p_sys->p_demux );
365 p_empty = block_New( s, 1 ); p_empty->i_buffer = 0;
366 block_FifoPut( p_sys->p_fifo, p_empty );
367 vlc_thread_join( s );
369 if( p_sys->p_demux ) demux2_Delete( p_sys->p_demux );
370 if( p_sys->p_block ) block_Release( p_sys->p_block );
372 block_FifoRelease( p_sys->p_fifo );
373 free( p_sys->psz_name );
376 vlc_object_destroy( s );
380 static int DStreamRead( stream_t *s, void *p_read, int i_read )
382 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
383 uint8_t *p_out = p_read;
386 //msg_Dbg( s, "DStreamRead: wanted %d bytes", i_read );
388 while( !s->b_die && !s->b_error && i_read )
390 block_t *p_block = p_sys->p_block;
395 p_block = block_FifoGet( p_sys->p_fifo );
396 if( !p_block ) s->b_error = 1;
397 p_sys->p_block = p_block;
400 if( p_block && i_read )
402 i_copy = __MIN( i_read, p_block->i_buffer );
403 if( p_out && i_copy ) memcpy( p_out, p_block->p_buffer, i_copy );
406 p_block->i_buffer -= i_copy;
407 p_block->p_buffer += i_copy;
409 if( !p_block->i_buffer )
411 block_Release( p_block );
412 p_sys->p_block = NULL;
417 p_sys->i_pos += i_out;
421 static int DStreamPeek( stream_t *s, uint8_t **pp_peek, int i_peek )
423 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
424 block_t **pp_block = &p_sys->p_block;
428 //msg_Dbg( s, "DStreamPeek: wanted %d bytes", i_peek );
430 while( !s->b_die && !s->b_error && i_peek )
436 *pp_block = block_FifoGet( p_sys->p_fifo );
437 if( !*pp_block ) s->b_error = 1;
440 if( *pp_block && i_peek )
442 i_copy = __MIN( i_peek, (*pp_block)->i_buffer );
446 if( i_peek ) pp_block = &(*pp_block)->p_next;
452 p_sys->p_block = block_ChainGather( p_sys->p_block );
453 *pp_peek = p_sys->p_block->p_buffer;
459 static int DStreamControl( stream_t *s, int i_query, va_list args )
461 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
468 case STREAM_GET_SIZE:
469 p_i64 = (int64_t*) va_arg( args, int64_t * );
473 case STREAM_CAN_SEEK:
474 p_b = (vlc_bool_t*) va_arg( args, vlc_bool_t * );
478 case STREAM_CAN_FASTSEEK:
479 p_b = (vlc_bool_t*) va_arg( args, vlc_bool_t * );
483 case STREAM_GET_POSITION:
484 p_i64 = (int64_t*) va_arg( args, int64_t * );
485 *p_i64 = p_sys->i_pos;
488 case STREAM_SET_POSITION:
490 int64_t i64 = (int64_t)va_arg( args, int64_t );
492 if( i64 < p_sys->i_pos ) return VLC_EGENERIC;
493 i_skip = i64 - p_sys->i_pos;
497 int i_read = DStreamRead( s, NULL, i_skip );
498 if( i_read <= 0 ) return VLC_EGENERIC;
505 p_int = (int*) va_arg( args, int * );
509 case STREAM_CONTROL_ACCESS:
513 msg_Err( s, "invalid DStreamControl query=0x%x", i_query );
518 static int DStreamThread( stream_t *s )
520 d_stream_sys_t *p_sys = (d_stream_sys_t*)s->p_sys;
523 /* Create the demuxer */
524 if( !(p_demux = demux2_New( s, "", p_sys->psz_name, "", s, p_sys->out,
530 p_sys->p_demux = p_demux;
533 while( !s->b_die && !p_demux->b_die )
535 if( p_demux->pf_demux( p_demux ) <= 0 ) break;
538 vlc_object_kill( p_demux );
542 /****************************************************************************
544 ****************************************************************************/
545 static void SkipID3Tag( demux_t *p_demux )
548 uint8_t version, revision;
552 if( !p_demux->s ) return;
554 /* Get 10 byte id3 header */
555 if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return;
557 if( p_peek[0] != 'I' || p_peek[1] != 'D' || p_peek[2] != '3' ) return;
560 revision = p_peek[4];
561 b_footer = p_peek[5] & 0x10;
562 i_size = (p_peek[6]<<21) + (p_peek[7]<<14) + (p_peek[8]<<7) + p_peek[9];
564 if( b_footer ) i_size += 10;
567 /* Skip the entire tag */
568 stream_Read( p_demux->s, NULL, i_size );
570 msg_Dbg( p_demux, "ID3v2.%d revision %d tag found, skipping %d bytes",
571 version, revision, i_size );