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 along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
31 #include <vlc_common.h>
32 #include <vlc_plugin.h>
33 #include <vlc_access.h>
36 #ifdef HAVE_SYS_TYPES_H
37 # include <sys/types.h>
39 #ifdef HAVE_SYS_TIME_H
40 # include <sys/time.h>
42 #ifdef HAVE_SYS_STAT_H
43 # include <sys/stat.h>
51 #elif defined( WIN32 ) && !defined( UNDER_CE )
57 #include <libraw1394/raw1394.h>
58 #include <libraw1394/csr.h>
59 #include <libavc1394/avc1394.h>
60 #include <libavc1394/avc1394_vcr.h>
61 #include <libavc1394/rom1394.h>
63 /*****************************************************************************
65 *****************************************************************************/
66 static int Open ( vlc_object_t * );
67 static void Close( vlc_object_t * );
68 static block_t *Block( access_t * );
69 static int Control( access_t *, int, va_list );
71 #define CACHING_TEXT N_("Caching value in ms")
72 #define CACHING_LONGTEXT N_( \
73 "Caching value for DV streams. This " \
74 "value should be set in milliseconds." )
77 set_description( N_("Digital Video (Firewire/ieee1394) input") )
78 set_shortname( N_("DV") )
79 set_category( CAT_INPUT )
80 set_subcategory( SUBCAT_INPUT_ACCESS )
81 add_integer( "dv-caching", 60000 / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, true )
83 set_capability( "access", 0 )
85 add_shortcut( "dv1394" )
86 add_shortcut( "raw1394" )
87 set_callbacks( Open, Close )
101 static void* Raw1394EventThread( vlc_object_t * );
102 static enum raw1394_iso_disposition
103 Raw1394Handler(raw1394handle_t, unsigned char *,
104 unsigned int, unsigned char,
105 unsigned char, unsigned char, unsigned int,
108 static int Raw1394GetNumPorts( access_t *p_access );
109 static raw1394handle_t Raw1394Open( access_t *, int );
110 static void Raw1394Close( raw1394handle_t );
112 static int DiscoverAVC( access_t *, int *, uint64_t );
113 static raw1394handle_t AVCOpen( access_t *, int );
114 static void AVCClose( access_t * );
115 static int AVCResetHandler( raw1394handle_t, unsigned int );
116 static int AVCPlay( access_t *, int );
117 static int AVCPause( access_t *, int );
118 static int AVCStop( access_t *, int );
122 raw1394handle_t p_avc1394;
123 raw1394handle_t p_raw1394;
124 struct pollfd raw1394_poll;
133 event_thread_t *p_ev;
138 #define ISOCHRONOUS_QUEUE_LENGTH 1000
139 #define ISOCHRONOUS_MAX_PACKET_SIZE 4096
141 /*****************************************************************************
142 * Open: open the file
143 *****************************************************************************/
144 static int Open( vlc_object_t *p_this )
146 access_t *p_access = (access_t*)p_this;
148 char *psz_name = strdup( p_access->psz_path );
150 struct raw1394_portinfo port_inf[ 16 ];
152 msg_Dbg( p_access, "opening device %s", psz_name );
154 /* Set up p_access */
155 access_InitFields( p_access );
156 ACCESS_SET_CALLBACKS( NULL, Block, Control, NULL );
158 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
169 p_sys->i_channel = 63;
170 p_sys->p_raw1394 = NULL;
171 p_sys->p_avc1394 = NULL;
172 p_sys->p_frame = NULL;
175 vlc_mutex_init( &p_sys->lock );
177 p_sys->i_node = DiscoverAVC( p_access, &p_sys->i_port, p_sys->i_guid );
178 if( p_sys->i_node < 0 )
180 msg_Err( p_access, "failed to open a Firewire (IEEE1394) connection" );
186 p_sys->p_avc1394 = AVCOpen( p_access, p_sys->i_port );
187 if( !p_sys->p_avc1394 )
189 msg_Err( p_access, "no Digital Video Control device found on %s", psz_name );
195 p_sys->p_raw1394 = raw1394_new_handle();
196 if( !p_sys->p_raw1394 )
198 msg_Err( p_access, "no Digital Video device found on %s", psz_name );
204 p_sys->i_cards = raw1394_get_port_info( p_sys->p_raw1394, port_inf, 16 );
205 if( p_sys->i_cards < 0 )
207 msg_Err( p_access, "failed to get port info for %s", psz_name );
213 if( raw1394_set_port( p_sys->p_raw1394, p_sys->i_port ) < 0 )
215 msg_Err( p_access, "failed to set port info for %s", psz_name );
221 if ( raw1394_iso_recv_init( p_sys->p_raw1394, Raw1394Handler,
222 ISOCHRONOUS_QUEUE_LENGTH, ISOCHRONOUS_MAX_PACKET_SIZE,
223 p_sys->i_channel, RAW1394_DMA_PACKET_PER_BUFFER, -1 ) < 0 )
225 msg_Err( p_access, "failed to init isochronous recv for %s", psz_name );
231 raw1394_set_userdata( p_sys->p_raw1394, p_access );
232 raw1394_iso_recv_start( p_sys->p_raw1394, -1, -1, 0 );
234 p_sys->raw1394_poll.fd = raw1394_get_fd( p_sys->p_raw1394 );
235 p_sys->raw1394_poll.events = POLLIN | POLLPRI;
237 /* Update default_pts to a suitable value for udp access */
238 var_Create( p_access, "dv-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
240 /* Now create our event thread catcher */
241 p_sys->p_ev = vlc_object_create( p_access, sizeof( event_thread_t ) );
244 msg_Err( p_access, "failed to create event thread for %s", psz_name );
250 p_sys->p_ev->p_frame = NULL;
251 p_sys->p_ev->pp_last = &p_sys->p_ev->p_frame;
252 p_sys->p_ev->p_access = p_access;
253 vlc_mutex_init( &p_sys->p_ev->lock );
254 vlc_thread_create( p_sys->p_ev, "dv event thread handler",
255 Raw1394EventThread, VLC_THREAD_PRIORITY_OUTPUT );
261 /*****************************************************************************
262 * Close: free unused data structures
263 *****************************************************************************/
264 static void Close( vlc_object_t *p_this )
266 access_t *p_access = (access_t*)p_this;
267 access_sys_t *p_sys = p_access->p_sys;
271 /* stop the event handler */
272 vlc_object_kill( p_sys->p_ev );
274 if( p_sys->p_raw1394 )
275 raw1394_iso_shutdown( p_sys->p_raw1394 );
277 vlc_thread_join( p_sys->p_ev );
278 vlc_mutex_destroy( &p_sys->p_ev->lock );
280 /* Cleanup frame data */
281 if( p_sys->p_ev->p_frame )
283 block_ChainRelease( p_sys->p_ev->p_frame );
284 p_sys->p_ev->p_frame = NULL;
285 p_sys->p_ev->pp_last = &p_sys->p_frame;
287 vlc_object_release( p_sys->p_ev );
291 block_ChainRelease( p_sys->p_frame );
292 if( p_sys->p_raw1394 )
293 raw1394_destroy_handle( p_sys->p_raw1394 );
295 AVCClose( p_access );
297 vlc_mutex_destroy( &p_sys->lock );
301 /*****************************************************************************
303 *****************************************************************************/
304 static int Control( access_t *p_access, int i_query, va_list args )
309 case ACCESS_CAN_PAUSE:
310 *va_arg( args, bool* ) = true;
313 case ACCESS_CAN_SEEK:
314 case ACCESS_CAN_FASTSEEK:
315 case ACCESS_CAN_CONTROL_PACE:
316 *va_arg( args, bool* ) = false;
319 case ACCESS_GET_PTS_DELAY:
320 *va_arg( args, int64_t * )
321 = (int64_t)var_GetInteger( p_access, "dv-caching" ) * 1000;
325 case ACCESS_SET_PAUSE_STATE:
326 AVCPause( p_access, p_access->p_sys->i_node );
329 case ACCESS_GET_TITLE_INFO:
330 case ACCESS_SET_TITLE:
331 case ACCESS_SET_SEEKPOINT:
332 case ACCESS_SET_PRIVATE_ID_STATE:
333 case ACCESS_GET_CONTENT_TYPE:
337 msg_Warn( p_access, "unimplemented query in control" );
344 static block_t *Block( access_t *p_access )
346 access_sys_t *p_sys = p_access->p_sys;
347 block_t *p_block = NULL;
349 vlc_mutex_lock( &p_sys->lock );
350 p_block = p_sys->p_frame;
351 //msg_Dbg( p_access, "sending frame %p",p_block );
352 p_sys->p_frame = NULL;
353 vlc_mutex_unlock( &p_sys->lock );
358 static void* Raw1394EventThread( vlc_object_t *p_this )
360 event_thread_t *p_ev = (event_thread_t *) p_this;
361 access_t *p_access = (access_t *) p_ev->p_access;
362 access_sys_t *p_sys = (access_sys_t *) p_access->p_sys;
364 int canc = vlc_savecancel ();
366 AVCPlay( p_access, p_sys->i_node );
368 while( vlc_object_alive (p_sys->p_ev) )
370 while( ( result = poll( &(p_sys->raw1394_poll), 1, 200 ) ) < 0 )
372 if( !( errno == EAGAIN || errno == EINTR ) )
374 perror( "error: raw1394 poll" );
375 msg_Err( p_access, "retrying device raw1394" );
378 if( !vlc_object_alive (p_sys->p_ev) )
380 if( result > 0 && ( ( p_sys->raw1394_poll.revents & POLLIN )
381 || ( p_sys->raw1394_poll.revents & POLLPRI ) ) )
382 result = raw1394_loop_iterate( p_sys->p_raw1394 );
385 AVCStop( p_access, p_sys->i_node );
386 vlc_restorecancel (canc);
390 static enum raw1394_iso_disposition
391 Raw1394Handler(raw1394handle_t handle, unsigned char *data,
392 unsigned int length, unsigned char channel,
393 unsigned char tag, unsigned char sy, unsigned int cycle,
394 unsigned int dropped)
396 access_t *p_access = NULL;
397 access_sys_t *p_sys = NULL;
398 block_t *p_block = NULL;
399 VLC_UNUSED(channel); VLC_UNUSED(tag);
400 VLC_UNUSED(sy); VLC_UNUSED(cycle); VLC_UNUSED(dropped);
402 p_access = (access_t *) raw1394_get_userdata( handle );
403 if( !p_access ) return 0;
405 p_sys = p_access->p_sys;
407 /* skip empty packets */
410 unsigned char * p = data + 8;
411 int section_type = p[ 0 ] >> 5; /* section type is in bits 5 - 7 */
412 int dif_sequence = p[ 1 ] >> 4; /* dif sequence number is in bits 4 - 7 */
413 int dif_block = p[ 2 ];
415 vlc_mutex_lock( &p_sys->p_ev->lock );
417 /* if we are at the beginning of a frame, we put the previous
418 frame in our output_queue. */
419 if( (section_type == 0) && (dif_sequence == 0) )
421 vlc_mutex_lock( &p_sys->lock );
422 if( p_sys->p_ev->p_frame )
424 /* Push current frame to p_access thread. */
425 //p_sys->p_ev->p_frame->i_pts = mdate();
426 block_ChainAppend( &p_sys->p_frame, p_sys->p_ev->p_frame );
429 p_sys->p_ev->p_frame = block_New( p_access, 144000 );
430 p_sys->p_ev->pp_last = &p_sys->p_frame;
431 vlc_mutex_unlock( &p_sys->lock );
434 p_block = p_sys->p_ev->p_frame;
437 switch ( section_type )
439 case 0: /* 1 Header block */
440 /* p[3] |= 0x80; // hack to force PAL data */
441 memcpy( p_block->p_buffer + dif_sequence * 150 * 80, p, 480 );
444 case 1: /* 2 Subcode blocks */
445 memcpy( p_block->p_buffer + dif_sequence * 150 * 80 + ( 1 + dif_block ) * 80, p, 480 );
448 case 2: /* 3 VAUX blocks */
449 memcpy( p_block->p_buffer + dif_sequence * 150 * 80 + ( 3 + dif_block ) * 80, p, 480 );
452 case 3: /* 9 Audio blocks interleaved with video */
453 memcpy( p_block->p_buffer + dif_sequence * 150 * 80 + ( 6 + dif_block * 16 ) * 80, p, 480 );
456 case 4: /* 135 Video blocks interleaved with audio */
457 memcpy( p_block->p_buffer + dif_sequence * 150 * 80 + ( 7 + ( dif_block / 15 ) + dif_block ) * 80, p, 480 );
460 default: /* we canĀ“t handle any other data */
461 block_Release( p_block );
467 vlc_mutex_unlock( &p_sys->p_ev->lock );
473 * Routing borrowed from dvgrab-1.8
474 * Copyright by Arne Schirmacher <dvgrab@schirmacher.de>
475 * Dan Dennedy <dan@dennedy.org> and others
477 static int Raw1394GetNumPorts( access_t *p_access )
480 struct raw1394_portinfo pinf[ 16 ];
481 raw1394handle_t handle;
483 /* get a raw1394 handle */
484 if( !( handle = raw1394_new_handle() ) )
486 msg_Err( p_access, "raw1394 - failed to get handle: %m." );
490 if( ( n_ports = raw1394_get_port_info( handle, pinf, 16 ) ) < 0 )
492 msg_Err( p_access, "raw1394 - failed to get port info: %m." );
493 raw1394_destroy_handle( handle );
496 raw1394_destroy_handle( handle );
501 static raw1394handle_t Raw1394Open( access_t *p_access, int port )
504 struct raw1394_portinfo pinf[ 16 ];
505 raw1394handle_t handle;
507 /* get a raw1394 handle */
508 handle = raw1394_new_handle();
511 msg_Err( p_access, "raw1394 - failed to get handle: %m." );
515 if( ( n_ports = raw1394_get_port_info( handle, pinf, 16 ) ) < 0 )
517 msg_Err( p_access, "raw1394 - failed to get port info: %m." );
518 raw1394_destroy_handle( handle );
522 /* tell raw1394 which host adapter to use */
523 if( raw1394_set_port( handle, port ) < 0 )
525 msg_Err( p_access, "raw1394 - failed to set set port: %m." );
532 static void Raw1394Close( raw1394handle_t handle )
534 raw1394_destroy_handle( handle );
537 static int DiscoverAVC( access_t *p_access, int* port, uint64_t guid )
539 rom1394_directory rom_dir;
540 raw1394handle_t handle = NULL;
543 int m = Raw1394GetNumPorts( p_access );
547 /* search on explicit port */
552 for( ; j < m && device == -1; j++ )
554 handle = Raw1394Open( p_access, j );
558 for( i = 0; i < raw1394_get_nodecount( handle ); ++i )
562 /* select explicitly by GUID */
563 if( guid == rom1394_get_guid( handle, i ) )
572 /* select first AV/C Tape Reccorder Player node */
573 if( rom1394_get_directory( handle, i, &rom_dir ) < 0 )
575 msg_Err( p_access, "error reading config rom directory for node %d", i );
578 if( ( rom1394_get_node_type( &rom_dir ) == ROM1394_NODE_TYPE_AVC ) &&
579 avc1394_check_subunit_type( handle, i, AVC1394_SUBUNIT_TYPE_VCR ) )
587 Raw1394Close( handle );
594 * Handle AVC commands
596 static raw1394handle_t AVCOpen( access_t *p_access, int port )
598 access_sys_t *p_sys = p_access->p_sys;
599 struct raw1394_portinfo pinf[ 16 ];
602 p_sys->p_avc1394 = raw1394_new_handle();
603 if( !p_sys->p_avc1394 )
606 numcards = raw1394_get_port_info( p_sys->p_avc1394, pinf, 16 );
609 if( raw1394_set_port( p_sys->p_avc1394, port ) < 0 )
612 raw1394_set_bus_reset_handler( p_sys->p_avc1394, AVCResetHandler );
614 return p_sys->p_avc1394;
617 static void AVCClose( access_t *p_access )
619 access_sys_t *p_sys = p_access->p_sys;
621 if( p_sys->p_avc1394 )
623 raw1394_destroy_handle( p_sys->p_avc1394 );
624 p_sys->p_avc1394 = NULL;
628 static int AVCResetHandler( raw1394handle_t handle, unsigned int generation )
630 raw1394_update_generation( handle, generation );
634 static int AVCPlay( access_t *p_access, int phyID )
636 access_sys_t *p_sys = p_access->p_sys;
638 msg_Dbg( p_access, "send play command over Digital Video control channel" );
640 if( p_sys->p_avc1394 && phyID >= 0 )
642 if( !avc1394_vcr_is_recording( p_sys->p_avc1394, phyID ) &&
643 avc1394_vcr_is_playing( p_sys->p_avc1394, phyID ) != AVC1394_VCR_OPERAND_PLAY_FORWARD )
644 avc1394_vcr_play( p_sys->p_avc1394, phyID );
649 static int AVCPause( access_t *p_access, int phyID )
651 access_sys_t *p_sys = p_access->p_sys;
653 if( p_sys->p_avc1394 && phyID >= 0 )
655 if( !avc1394_vcr_is_recording( p_sys->p_avc1394, phyID ) &&
656 ( avc1394_vcr_is_playing( p_sys->p_avc1394, phyID ) != AVC1394_VCR_OPERAND_PLAY_FORWARD_PAUSE ) )
657 avc1394_vcr_pause( p_sys->p_avc1394, phyID );
663 static int AVCStop( access_t *p_access, int phyID )
665 access_sys_t *p_sys = p_access->p_sys;
667 msg_Dbg( p_access, "closing Digital Video control channel" );
669 if ( p_sys->p_avc1394 && phyID >= 0 )
670 avc1394_vcr_stop( p_sys->p_avc1394, phyID );