1 /*****************************************************************************
2 * dv.c: Digital video/Firewire input (file: access plug-in)
3 *****************************************************************************
4 * Copyright (C) 2005 M2X
7 * Authors: Jean-Paul Saman <jpsaman at m2x dot nl>
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 *****************************************************************************/
28 #include <vlc_access.h>
31 #ifdef HAVE_SYS_TYPES_H
32 # include <sys/types.h>
34 #ifdef HAVE_SYS_TIME_H
35 # include <sys/time.h>
37 #ifdef HAVE_SYS_STAT_H
38 # include <sys/stat.h>
46 #elif defined( WIN32 ) && !defined( UNDER_CE )
52 #include <libraw1394/raw1394.h>
53 #include <libraw1394/csr.h>
54 #include <libavc1394/avc1394.h>
55 #include <libavc1394/avc1394_vcr.h>
56 #include <libavc1394/rom1394.h>
58 /*****************************************************************************
60 *****************************************************************************/
61 static int Open ( vlc_object_t * );
62 static void Close( vlc_object_t * );
63 static block_t *Block( access_t * );
64 static int Control( access_t *, int, va_list );
66 #define CACHING_TEXT N_("Caching value in ms")
67 #define CACHING_LONGTEXT N_( \
68 "Caching value for DV streams. This" \
69 "value should be set in milliseconds." )
72 set_description( _("Digital Video (Firewire/ieee1394) input") );
73 set_shortname( _("dv") );
74 set_category( CAT_INPUT );
75 set_subcategory( SUBCAT_INPUT_ACCESS );
76 add_integer( "dv-caching", 60000 / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
77 set_capability( "access2", 0 );
79 add_shortcut( "dv1394" );
80 add_shortcut( "raw1394" );
81 set_callbacks( Open, Close );
95 static int Raw1394EventThread( vlc_object_t * );
96 static int Raw1394Handler( raw1394handle_t, int, size_t, quadlet_t * );
98 static int Raw1394GetNumPorts( access_t *p_access );
99 static raw1394handle_t Raw1394Open( access_t *, int );
100 static void Raw1394Close( raw1394handle_t );
102 static int DiscoverAVC( access_t *, int *, uint64_t );
103 static raw1394handle_t AVCOpen( access_t *, int );
104 static void AVCClose( access_t * );
105 static int AVCResetHandler( raw1394handle_t, unsigned int );
106 static int AVCPlay( access_t *, int );
107 static int AVCPause( access_t *, int );
108 static int AVCStop( access_t *, int );
112 raw1394handle_t p_avc1394;
113 raw1394handle_t p_raw1394;
114 struct pollfd raw1394_poll;
123 event_thread_t *p_ev;
128 /*****************************************************************************
129 * Open: open the file
130 *****************************************************************************/
131 static int Open( vlc_object_t *p_this )
133 access_t *p_access = (access_t*)p_this;
135 char *psz_name = strdup( p_access->psz_path );
137 struct raw1394_portinfo port_inf[ 16 ];
138 iso_handler_t oldhandler;
140 msg_Dbg( p_access, "opening device %s", psz_name );
142 /* Set up p_access */
143 access_InitFields( p_access );
144 ACCESS_SET_CALLBACKS( NULL, Block, Control, NULL );
145 p_access->info.b_prebuffered = VLC_FALSE;
147 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
158 p_sys->i_channel = 63;
159 p_sys->p_raw1394 = NULL;
160 p_sys->p_avc1394 = NULL;
161 p_sys->p_frame = NULL;
164 vlc_mutex_init( p_access, &p_sys->lock );
166 p_sys->i_node = DiscoverAVC( p_access, &p_sys->i_port, p_sys->i_guid );
167 if( p_sys->i_node < 0 )
169 msg_Err( p_access, "failed to open a Firewire (IEEE1394) connection" );
175 p_sys->p_avc1394 = AVCOpen( p_access, p_sys->i_port );
176 if( !p_sys->p_avc1394 )
178 msg_Err( p_access, "no Digital Video Control device found on %s", psz_name );
184 p_sys->p_raw1394 = raw1394_new_handle();
185 if( !p_sys->p_raw1394 )
187 msg_Err( p_access, "no Digital Video device found on %s", psz_name );
193 p_sys->i_cards = raw1394_get_port_info( p_sys->p_raw1394, port_inf, 16 );
194 if( p_sys->i_cards < 0 )
196 msg_Err( p_access, "failed to get port info for %s", psz_name );
202 if( raw1394_set_port( p_sys->p_raw1394, p_sys->i_port ) < 0 )
204 msg_Err( p_access, "failed to set port info for %s", psz_name );
210 oldhandler = raw1394_set_iso_handler( p_sys->p_raw1394,
211 p_sys->i_channel, Raw1394Handler );
212 raw1394_set_userdata( p_sys->p_raw1394, p_access );
213 raw1394_start_iso_rcv( p_sys->p_raw1394, p_sys->i_channel );
215 p_sys->raw1394_poll.fd = raw1394_get_fd( p_sys->p_raw1394 );
216 p_sys->raw1394_poll.events = POLLIN | POLLERR | POLLHUP | POLLPRI;
218 /* Update default_pts to a suitable value for udp access */
219 var_Create( p_access, "dv-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
221 /* Now create our event thread catcher */
222 p_sys->p_ev = vlc_object_create( p_access, sizeof( event_thread_t ) );
225 msg_Err( p_access, "failed to create event thread for %s", psz_name );
231 p_sys->p_ev->p_frame = NULL;
232 p_sys->p_ev->pp_last = &p_sys->p_ev->p_frame;
233 p_sys->p_ev->p_access = p_access;
234 vlc_mutex_init( p_access, &p_sys->p_ev->lock );
235 vlc_thread_create( p_sys->p_ev, "dv event thread handler", Raw1394EventThread,
236 VLC_THREAD_PRIORITY_OUTPUT, VLC_FALSE );
242 /*****************************************************************************
243 * Close: free unused data structures
244 *****************************************************************************/
245 static void Close( vlc_object_t *p_this )
247 access_t *p_access = (access_t*)p_this;
248 access_sys_t *p_sys = p_access->p_sys;
252 /* stop the event handler */
253 vlc_object_kill( p_sys->p_ev );
255 if( p_sys->p_raw1394 )
256 raw1394_stop_iso_rcv( p_sys->p_raw1394, p_sys->i_channel );
258 vlc_mutex_destroy( &p_sys->p_ev->lock );
259 vlc_thread_join( p_sys->p_ev );
261 /* Cleanup frame data */
262 if( p_sys->p_ev->p_frame )
264 vlc_mutex_lock( &p_sys->p_ev->lock );
265 block_ChainRelease( p_sys->p_ev->p_frame );
266 p_sys->p_ev->p_frame = NULL;
267 p_sys->p_ev->pp_last = &p_sys->p_frame;
268 vlc_mutex_unlock( &p_sys->p_ev->lock );
270 vlc_object_destroy( p_sys->p_ev );
274 block_ChainRelease( p_sys->p_frame );
275 if( p_sys->p_raw1394 )
276 raw1394_destroy_handle( p_sys->p_raw1394 );
278 AVCClose( p_access );
280 vlc_mutex_destroy( &p_sys->lock );
284 /*****************************************************************************
286 *****************************************************************************/
287 static int Control( access_t *p_access, int i_query, va_list args )
289 access_sys_t *p_sys = p_access->p_sys;
296 case ACCESS_CAN_PAUSE:
297 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
301 case ACCESS_CAN_SEEK:
302 case ACCESS_CAN_FASTSEEK:
303 case ACCESS_CAN_CONTROL_PACE:
304 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
305 *pb_bool = VLC_FALSE;
308 case ACCESS_GET_PTS_DELAY:
309 pi_64 = (int64_t*)va_arg( args, int64_t * );
310 *pi_64 = var_GetInteger( p_access, "dv-caching" ) * 1000;
314 case ACCESS_SET_PAUSE_STATE:
315 AVCPause( p_access, p_sys->i_node );
318 case ACCESS_GET_TITLE_INFO:
319 case ACCESS_SET_TITLE:
320 case ACCESS_SET_SEEKPOINT:
321 case ACCESS_SET_PRIVATE_ID_STATE:
325 msg_Warn( p_access, "unimplemented query in control" );
332 static block_t *Block( access_t *p_access )
334 access_sys_t *p_sys = p_access->p_sys;
335 block_t *p_block = NULL;
337 // if( !p_access->psz_demux )
338 // p_access->psz_demux = strdup( "rawdv" );
340 vlc_mutex_lock( &p_sys->lock );
341 p_block = p_sys->p_frame;
342 //msg_Dbg( p_access, "sending frame %p",p_block );
343 p_sys->p_frame = NULL;
344 vlc_mutex_unlock( &p_sys->lock );
349 static int Raw1394EventThread( vlc_object_t *p_this )
351 event_thread_t *p_ev = (event_thread_t *) p_this;
352 access_t *p_access = (access_t *) p_ev->p_access;
353 access_sys_t *p_sys = (access_sys_t *) p_access->p_sys;
356 AVCPlay( p_access, p_sys->i_node );
358 vlc_thread_ready( p_this );
360 while( !p_sys->p_ev->b_die )
362 while( ( result = poll( &(p_sys->raw1394_poll), 1, 200 ) ) < 0 )
364 if( !( errno == EAGAIN || errno == EINTR ) )
366 perror( "error: raw1394 poll" );
367 msg_Err( p_access, "retrying device raw1394" );
369 if( p_sys->p_ev->b_die )
372 if( p_sys->p_ev->b_die )
374 if( result > 0 && ( ( p_sys->raw1394_poll.revents & POLLIN )
375 || ( p_sys->raw1394_poll.revents & POLLPRI ) ) )
376 result = raw1394_loop_iterate( p_sys->p_raw1394 );
379 AVCStop( p_access, p_sys->i_node );
383 static int Raw1394Handler( raw1394handle_t handle, int channel, size_t length, quadlet_t *data )
385 access_t *p_access = NULL;
386 access_sys_t *p_sys = NULL;
387 block_t *p_block = NULL;
389 p_access = (access_t *) raw1394_get_userdata( handle );
390 if( !p_access ) return 0;
392 p_sys = p_access->p_sys;
394 /* skip empty packets */
397 unsigned char * p = ( unsigned char* ) &data[ 3 ];
398 int section_type = p[ 0 ] >> 5; /* section type is in bits 5 - 7 */
399 int dif_sequence = p[ 1 ] >> 4; /* dif sequence number is in bits 4 - 7 */
400 int dif_block = p[ 2 ];
402 vlc_mutex_lock( &p_sys->p_ev->lock );
404 /* if we are at the beginning of a frame, we put the previous
405 frame in our output_queue. */
406 if( (section_type == 0) && (dif_sequence == 0) )
408 vlc_mutex_lock( &p_sys->lock );
409 if( p_sys->p_ev->p_frame )
411 /* Push current frame to p_access thread. */
412 //p_sys->p_ev->p_frame->i_pts = mdate();
413 block_ChainAppend( &p_sys->p_frame, p_sys->p_ev->p_frame );
416 p_sys->p_ev->p_frame = block_New( p_access, 144000 );
417 p_sys->p_ev->pp_last = &p_sys->p_frame;
418 vlc_mutex_unlock( &p_sys->lock );
421 p_block = p_sys->p_ev->p_frame;
424 switch ( section_type )
426 case 0: /* 1 Header block */
427 /* p[3] |= 0x80; // hack to force PAL data */
428 memcpy( p_block->p_buffer + dif_sequence * 150 * 80, p, 480 );
431 case 1: /* 2 Subcode blocks */
432 memcpy( p_block->p_buffer + dif_sequence * 150 * 80 + ( 1 + dif_block ) * 80, p, 480 );
435 case 2: /* 3 VAUX blocks */
436 memcpy( p_block->p_buffer + dif_sequence * 150 * 80 + ( 3 + dif_block ) * 80, p, 480 );
439 case 3: /* 9 Audio blocks interleaved with video */
440 memcpy( p_block->p_buffer + dif_sequence * 150 * 80 + ( 6 + dif_block * 16 ) * 80, p, 480 );
443 case 4: /* 135 Video blocks interleaved with audio */
444 memcpy( p_block->p_buffer + dif_sequence * 150 * 80 + ( 7 + ( dif_block / 15 ) + dif_block ) * 80, p, 480 );
447 default: /* we canĀ“t handle any other data */
448 block_Release( p_block );
453 vlc_mutex_unlock( &p_sys->p_ev->lock );
459 * Routing borrowed from dvgrab-1.8
460 * Copyright by Arne Schirmacher <dvgrab@schirmacher.de>
461 * Dan Dennedy <dan@dennedy.org> and others
463 static int Raw1394GetNumPorts( access_t *p_access )
466 struct raw1394_portinfo pinf[ 16 ];
467 raw1394handle_t handle;
469 /* get a raw1394 handle */
470 if ( !( handle = raw1394_new_handle() ) )
472 msg_Err( p_access, "raw1394 - failed to get handle: %m." );
476 if ( ( n_ports = raw1394_get_port_info( handle, pinf, 16 ) ) < 0 )
478 msg_Err( p_access, "raw1394 - failed to get port info: %m.\n" );
479 raw1394_destroy_handle( handle );
482 raw1394_destroy_handle( handle );
487 static raw1394handle_t Raw1394Open( access_t *p_access, int port )
490 struct raw1394_portinfo pinf[ 16 ];
491 raw1394handle_t handle;
493 /* get a raw1394 handle */
496 handle = raw1394_get_handle();
499 handle = raw1394_new_handle();
504 msg_Err( p_access, "raw1394 - failed to get handle: %m." );
508 if ( ( n_ports = raw1394_get_port_info( handle, pinf, 16 ) ) < 0 )
510 msg_Err( p_access, "raw1394 - failed to get port info: %m." );
511 raw1394_destroy_handle( handle );
515 /* tell raw1394 which host adapter to use */
516 if ( raw1394_set_port( handle, port ) < 0 )
518 msg_Err( p_access, "raw1394 - failed to set set port: %m." );
525 static void Raw1394Close( raw1394handle_t handle )
527 raw1394_destroy_handle( handle );
530 static int DiscoverAVC( access_t *p_access, int* port, uint64_t guid )
532 rom1394_directory rom_dir;
533 raw1394handle_t handle = NULL;
536 int m = Raw1394GetNumPorts( p_access );
540 /* search on explicit port */
545 for( ; j < m && device == -1; j++ )
547 handle = Raw1394Open( p_access, j );
551 for( i = 0; i < raw1394_get_nodecount( handle ); ++i )
555 /* select explicitly by GUID */
556 if( guid == rom1394_get_guid( handle, i ) )
565 /* select first AV/C Tape Reccorder Player node */
566 if( rom1394_get_directory( handle, i, &rom_dir ) < 0 )
568 msg_Err( p_access, "error reading config rom directory for node %d\n", i );
571 if( ( rom1394_get_node_type( &rom_dir ) == ROM1394_NODE_TYPE_AVC ) &&
572 avc1394_check_subunit_type( handle, i, AVC1394_SUBUNIT_TYPE_VCR ) )
580 Raw1394Close( handle );
587 * Handle AVC commands
589 static raw1394handle_t AVCOpen( access_t *p_access, int port )
591 access_sys_t *p_sys = p_access->p_sys;
593 struct raw1394_portinfo pinf[ 16 ];
595 p_sys->p_avc1394 = raw1394_new_handle();
596 if( !p_sys->p_avc1394 )
599 numcards = raw1394_get_port_info( p_sys->p_avc1394, pinf, 16 );
602 if( raw1394_set_port( p_sys->p_avc1394, port ) < 0 )
605 raw1394_set_bus_reset_handler( p_sys->p_avc1394, AVCResetHandler );
607 return p_sys->p_avc1394;
610 static void AVCClose( access_t *p_access )
612 access_sys_t *p_sys = p_access->p_sys;
614 if( p_sys->p_avc1394 )
616 raw1394_destroy_handle( p_sys->p_avc1394 );
617 p_sys->p_avc1394 = NULL;
622 static int AVCResetHandler( raw1394handle_t handle, unsigned int generation )
624 raw1394_update_generation( handle, generation );
628 static int AVCPlay( access_t *p_access, int phyID )
630 access_sys_t *p_sys = p_access->p_sys;
632 msg_Dbg( p_access, "send play command over Digital Video control channel" );
633 if( !p_sys->p_avc1394 )
638 if( !avc1394_vcr_is_recording( p_sys->p_avc1394, phyID ) &&
639 avc1394_vcr_is_playing( p_sys->p_avc1394, phyID ) != AVC1394_VCR_OPERAND_PLAY_FORWARD )
640 avc1394_vcr_play( p_sys->p_avc1394, phyID );
645 static int AVCPause( access_t *p_access, int phyID )
647 access_sys_t *p_sys = p_access->p_sys;
649 if( !p_sys->p_avc1394 )
654 if( !avc1394_vcr_is_recording( p_sys->p_avc1394, phyID ) &&
655 ( avc1394_vcr_is_playing( p_sys->p_avc1394, phyID ) != AVC1394_VCR_OPERAND_PLAY_FORWARD_PAUSE ) )
656 avc1394_vcr_pause( p_sys->p_avc1394, phyID );
662 static int AVCStop( access_t *p_access, int phyID )
664 access_sys_t *p_sys = p_access->p_sys;
666 msg_Dbg( p_access, "closing Digital Video control channel" );
667 if( !p_sys->p_avc1394 )
671 avc1394_vcr_stop( p_sys->p_avc1394, phyID );