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 #include <sys/types.h>
39 #elif defined( WIN32 ) && !defined( UNDER_CE )
45 #include <libraw1394/raw1394.h>
46 #include <libraw1394/csr.h>
47 #include <libavc1394/avc1394.h>
48 #include <libavc1394/avc1394_vcr.h>
49 #include <libavc1394/rom1394.h>
51 /*****************************************************************************
53 *****************************************************************************/
54 static int Open ( vlc_object_t
* );
55 static void Close( vlc_object_t
* );
56 static block_t
*Block( access_t
* );
57 static int Control( access_t
*, int, va_list );
59 #define CACHING_TEXT N_("Caching value in ms")
60 #define CACHING_LONGTEXT N_( \
61 "Caching value for DV streams. This " \
62 "value should be set in milliseconds." )
65 set_description( N_("Digital Video (Firewire/ieee1394) input") )
66 set_shortname( N_("DV") )
67 set_category( CAT_INPUT
)
68 set_subcategory( SUBCAT_INPUT_ACCESS
)
69 add_integer( "dv-caching", 60000 / 1000, CACHING_TEXT
, CACHING_LONGTEXT
, true )
71 set_capability( "access", 0 )
72 add_shortcut( "dv", "dv1394", "raw1394" )
73 set_callbacks( Open
, Close
)
87 static void* Raw1394EventThread( vlc_object_t
* );
88 static enum raw1394_iso_disposition
89 Raw1394Handler(raw1394handle_t
, unsigned char *,
90 unsigned int, unsigned char,
91 unsigned char, unsigned char, unsigned int,
94 static int Raw1394GetNumPorts( access_t
*p_access
);
95 static raw1394handle_t
Raw1394Open( access_t
*, int );
96 static void Raw1394Close( raw1394handle_t
);
98 static int DiscoverAVC( access_t
*, int *, uint64_t );
99 static raw1394handle_t
AVCOpen( access_t
*, int );
100 static void AVCClose( access_t
* );
101 static int AVCResetHandler( raw1394handle_t
, unsigned int );
102 static int AVCPlay( access_t
*, int );
103 static int AVCPause( access_t
*, int );
104 static int AVCStop( access_t
*, int );
108 raw1394handle_t p_avc1394
;
109 raw1394handle_t p_raw1394
;
110 struct pollfd raw1394_poll
;
119 event_thread_t
*p_ev
;
124 #define ISOCHRONOUS_QUEUE_LENGTH 1000
125 #define ISOCHRONOUS_MAX_PACKET_SIZE 4096
127 /*****************************************************************************
128 * Open: open the file
129 *****************************************************************************/
130 static int Open( vlc_object_t
*p_this
)
132 access_t
*p_access
= (access_t
*)p_this
;
135 struct raw1394_portinfo port_inf
[ 16 ];
137 msg_Dbg( p_access
, "opening device" );
139 /* Set up p_access */
140 access_InitFields( p_access
);
141 ACCESS_SET_CALLBACKS( NULL
, Block
, Control
, NULL
);
143 p_access
->p_sys
= p_sys
= malloc( sizeof( access_sys_t
) );
151 p_sys
->i_channel
= 63;
152 p_sys
->p_raw1394
= NULL
;
153 p_sys
->p_avc1394
= NULL
;
154 p_sys
->p_frame
= NULL
;
157 vlc_mutex_init( &p_sys
->lock
);
159 p_sys
->i_node
= DiscoverAVC( p_access
, &p_sys
->i_port
, p_sys
->i_guid
);
160 if( p_sys
->i_node
< 0 )
162 msg_Err( p_access
, "failed to open a Firewire (IEEE1394) connection" );
167 p_sys
->p_avc1394
= AVCOpen( p_access
, p_sys
->i_port
);
168 if( !p_sys
->p_avc1394
)
170 msg_Err( p_access
, "no Digital Video Control device found" );
175 p_sys
->p_raw1394
= raw1394_new_handle();
176 if( !p_sys
->p_raw1394
)
178 msg_Err( p_access
, "no Digital Video device found" );
183 p_sys
->i_cards
= raw1394_get_port_info( p_sys
->p_raw1394
, port_inf
, 16 );
184 if( p_sys
->i_cards
< 0 )
186 msg_Err( p_access
, "failed to get port info" );
191 if( raw1394_set_port( p_sys
->p_raw1394
, p_sys
->i_port
) < 0 )
193 msg_Err( p_access
, "failed to set port info" );
198 if ( raw1394_iso_recv_init( p_sys
->p_raw1394
, Raw1394Handler
,
199 ISOCHRONOUS_QUEUE_LENGTH
, ISOCHRONOUS_MAX_PACKET_SIZE
,
200 p_sys
->i_channel
, RAW1394_DMA_PACKET_PER_BUFFER
, -1 ) < 0 )
202 msg_Err( p_access
, "failed to init isochronous recv" );
207 raw1394_set_userdata( p_sys
->p_raw1394
, p_access
);
208 raw1394_iso_recv_start( p_sys
->p_raw1394
, -1, -1, 0 );
210 p_sys
->raw1394_poll
.fd
= raw1394_get_fd( p_sys
->p_raw1394
);
211 p_sys
->raw1394_poll
.events
= POLLIN
| POLLPRI
;
213 /* Update default_pts to a suitable value for udp access */
214 var_Create( p_access
, "dv-caching", VLC_VAR_INTEGER
| VLC_VAR_DOINHERIT
);
216 /* Now create our event thread catcher */
217 p_sys
->p_ev
= vlc_object_create( p_access
, sizeof( event_thread_t
) );
220 msg_Err( p_access
, "failed to create event thread" );
225 p_sys
->p_ev
->p_frame
= NULL
;
226 p_sys
->p_ev
->pp_last
= &p_sys
->p_ev
->p_frame
;
227 p_sys
->p_ev
->p_access
= p_access
;
228 vlc_mutex_init( &p_sys
->p_ev
->lock
);
229 vlc_thread_create( p_sys
->p_ev
, "dv event thread handler",
230 Raw1394EventThread
, VLC_THREAD_PRIORITY_OUTPUT
);
235 /*****************************************************************************
236 * Close: free unused data structures
237 *****************************************************************************/
238 static void Close( vlc_object_t
*p_this
)
240 access_t
*p_access
= (access_t
*)p_this
;
241 access_sys_t
*p_sys
= p_access
->p_sys
;
245 /* stop the event handler */
246 vlc_object_kill( p_sys
->p_ev
);
248 if( p_sys
->p_raw1394
)
249 raw1394_iso_shutdown( p_sys
->p_raw1394
);
251 vlc_thread_join( p_sys
->p_ev
);
252 vlc_mutex_destroy( &p_sys
->p_ev
->lock
);
254 /* Cleanup frame data */
255 if( p_sys
->p_ev
->p_frame
)
257 block_ChainRelease( p_sys
->p_ev
->p_frame
);
258 p_sys
->p_ev
->p_frame
= NULL
;
259 p_sys
->p_ev
->pp_last
= &p_sys
->p_frame
;
261 vlc_object_release( p_sys
->p_ev
);
265 block_ChainRelease( p_sys
->p_frame
);
266 if( p_sys
->p_raw1394
)
267 raw1394_destroy_handle( p_sys
->p_raw1394
);
269 AVCClose( p_access
);
271 vlc_mutex_destroy( &p_sys
->lock
);
275 /*****************************************************************************
277 *****************************************************************************/
278 static int Control( access_t
*p_access
, int i_query
, va_list args
)
283 case ACCESS_CAN_PAUSE
:
284 *va_arg( args
, bool* ) = true;
287 case ACCESS_CAN_SEEK
:
288 case ACCESS_CAN_FASTSEEK
:
289 case ACCESS_CAN_CONTROL_PACE
:
290 *va_arg( args
, bool* ) = false;
293 case ACCESS_GET_PTS_DELAY
:
294 *va_arg( args
, int64_t * )
295 = var_GetInteger( p_access
, "dv-caching" ) * 1000;
299 case ACCESS_SET_PAUSE_STATE
:
300 AVCPause( p_access
, p_access
->p_sys
->i_node
);
303 case ACCESS_GET_TITLE_INFO
:
304 case ACCESS_SET_TITLE
:
305 case ACCESS_SET_SEEKPOINT
:
306 case ACCESS_SET_PRIVATE_ID_STATE
:
307 case ACCESS_GET_CONTENT_TYPE
:
311 msg_Warn( p_access
, "unimplemented query in control" );
318 static block_t
*Block( access_t
*p_access
)
320 access_sys_t
*p_sys
= p_access
->p_sys
;
321 block_t
*p_block
= NULL
;
323 vlc_mutex_lock( &p_sys
->lock
);
324 p_block
= p_sys
->p_frame
;
325 //msg_Dbg( p_access, "sending frame %p",p_block );
326 p_sys
->p_frame
= NULL
;
327 vlc_mutex_unlock( &p_sys
->lock
);
332 static void* Raw1394EventThread( vlc_object_t
*p_this
)
334 event_thread_t
*p_ev
= (event_thread_t
*) p_this
;
335 access_t
*p_access
= (access_t
*) p_ev
->p_access
;
336 access_sys_t
*p_sys
= (access_sys_t
*) p_access
->p_sys
;
338 int canc
= vlc_savecancel ();
340 AVCPlay( p_access
, p_sys
->i_node
);
342 while( vlc_object_alive (p_sys
->p_ev
) )
344 while( ( result
= poll( &(p_sys
->raw1394_poll
), 1, 200 ) ) < 0 )
346 if( !( errno
== EAGAIN
|| errno
== EINTR
) )
348 perror( "error: raw1394 poll" );
349 msg_Err( p_access
, "retrying device raw1394" );
352 if( !vlc_object_alive (p_sys
->p_ev
) )
354 if( result
> 0 && ( ( p_sys
->raw1394_poll
.revents
& POLLIN
)
355 || ( p_sys
->raw1394_poll
.revents
& POLLPRI
) ) )
356 result
= raw1394_loop_iterate( p_sys
->p_raw1394
);
359 AVCStop( p_access
, p_sys
->i_node
);
360 vlc_restorecancel (canc
);
364 static enum raw1394_iso_disposition
365 Raw1394Handler(raw1394handle_t handle
, unsigned char *data
,
366 unsigned int length
, unsigned char channel
,
367 unsigned char tag
, unsigned char sy
, unsigned int cycle
,
368 unsigned int dropped
)
370 access_t
*p_access
= NULL
;
371 access_sys_t
*p_sys
= NULL
;
372 block_t
*p_block
= NULL
;
373 VLC_UNUSED(channel
); VLC_UNUSED(tag
);
374 VLC_UNUSED(sy
); VLC_UNUSED(cycle
); VLC_UNUSED(dropped
);
376 p_access
= (access_t
*) raw1394_get_userdata( handle
);
377 if( !p_access
) return 0;
379 p_sys
= p_access
->p_sys
;
381 /* skip empty packets */
384 unsigned char * p
= data
+ 8;
385 int section_type
= p
[ 0 ] >> 5; /* section type is in bits 5 - 7 */
386 int dif_sequence
= p
[ 1 ] >> 4; /* dif sequence number is in bits 4 - 7 */
387 int dif_block
= p
[ 2 ];
389 vlc_mutex_lock( &p_sys
->p_ev
->lock
);
391 /* if we are at the beginning of a frame, we put the previous
392 frame in our output_queue. */
393 if( (section_type
== 0) && (dif_sequence
== 0) )
395 vlc_mutex_lock( &p_sys
->lock
);
396 if( p_sys
->p_ev
->p_frame
)
398 /* Push current frame to p_access thread. */
399 //p_sys->p_ev->p_frame->i_pts = mdate();
400 block_ChainAppend( &p_sys
->p_frame
, p_sys
->p_ev
->p_frame
);
403 p_sys
->p_ev
->p_frame
= block_New( p_access
, 144000 );
404 p_sys
->p_ev
->pp_last
= &p_sys
->p_frame
;
405 vlc_mutex_unlock( &p_sys
->lock
);
408 p_block
= p_sys
->p_ev
->p_frame
;
411 switch ( section_type
)
413 case 0: /* 1 Header block */
414 /* p[3] |= 0x80; // hack to force PAL data */
415 memcpy( p_block
->p_buffer
+ dif_sequence
* 150 * 80, p
, 480 );
418 case 1: /* 2 Subcode blocks */
419 memcpy( p_block
->p_buffer
+ dif_sequence
* 150 * 80 + ( 1 + dif_block
) * 80, p
, 480 );
422 case 2: /* 3 VAUX blocks */
423 memcpy( p_block
->p_buffer
+ dif_sequence
* 150 * 80 + ( 3 + dif_block
) * 80, p
, 480 );
426 case 3: /* 9 Audio blocks interleaved with video */
427 memcpy( p_block
->p_buffer
+ dif_sequence
* 150 * 80 + ( 6 + dif_block
* 16 ) * 80, p
, 480 );
430 case 4: /* 135 Video blocks interleaved with audio */
431 memcpy( p_block
->p_buffer
+ dif_sequence
* 150 * 80 + ( 7 + ( dif_block
/ 15 ) + dif_block
) * 80, p
, 480 );
434 default: /* we canĀ“t handle any other data */
435 block_Release( p_block
);
441 vlc_mutex_unlock( &p_sys
->p_ev
->lock
);
447 * Routing borrowed from dvgrab-1.8
448 * Copyright by Arne Schirmacher <dvgrab@schirmacher.de>
449 * Dan Dennedy <dan@dennedy.org> and others
451 static int Raw1394GetNumPorts( access_t
*p_access
)
454 struct raw1394_portinfo pinf
[ 16 ];
455 raw1394handle_t handle
;
457 /* get a raw1394 handle */
458 if( !( handle
= raw1394_new_handle() ) )
460 msg_Err( p_access
, "raw1394 - failed to get handle: %m." );
464 if( ( n_ports
= raw1394_get_port_info( handle
, pinf
, 16 ) ) < 0 )
466 msg_Err( p_access
, "raw1394 - failed to get port info: %m." );
467 raw1394_destroy_handle( handle
);
470 raw1394_destroy_handle( handle
);
475 static raw1394handle_t
Raw1394Open( access_t
*p_access
, int port
)
478 struct raw1394_portinfo pinf
[ 16 ];
479 raw1394handle_t handle
;
481 /* get a raw1394 handle */
482 handle
= raw1394_new_handle();
485 msg_Err( p_access
, "raw1394 - failed to get handle: %m." );
489 if( ( n_ports
= raw1394_get_port_info( handle
, pinf
, 16 ) ) < 0 )
491 msg_Err( p_access
, "raw1394 - failed to get port info: %m." );
492 raw1394_destroy_handle( handle
);
496 /* tell raw1394 which host adapter to use */
497 if( raw1394_set_port( handle
, port
) < 0 )
499 msg_Err( p_access
, "raw1394 - failed to set set port: %m." );
506 static void Raw1394Close( raw1394handle_t handle
)
508 raw1394_destroy_handle( handle
);
511 static int DiscoverAVC( access_t
*p_access
, int* port
, uint64_t guid
)
513 rom1394_directory rom_dir
;
514 raw1394handle_t handle
= NULL
;
517 int m
= Raw1394GetNumPorts( p_access
);
521 /* search on explicit port */
526 for( ; j
< m
&& device
== -1; j
++ )
528 handle
= Raw1394Open( p_access
, j
);
532 for( i
= 0; i
< raw1394_get_nodecount( handle
); ++i
)
536 /* select explicitly by GUID */
537 if( guid
== rom1394_get_guid( handle
, i
) )
546 /* select first AV/C Tape Reccorder Player node */
547 if( rom1394_get_directory( handle
, i
, &rom_dir
) < 0 )
549 msg_Err( p_access
, "error reading config rom directory for node %d", i
);
552 if( ( rom1394_get_node_type( &rom_dir
) == ROM1394_NODE_TYPE_AVC
) &&
553 avc1394_check_subunit_type( handle
, i
, AVC1394_SUBUNIT_TYPE_VCR
) )
561 Raw1394Close( handle
);
568 * Handle AVC commands
570 static raw1394handle_t
AVCOpen( access_t
*p_access
, int port
)
572 access_sys_t
*p_sys
= p_access
->p_sys
;
573 struct raw1394_portinfo pinf
[ 16 ];
576 p_sys
->p_avc1394
= raw1394_new_handle();
577 if( !p_sys
->p_avc1394
)
580 numcards
= raw1394_get_port_info( p_sys
->p_avc1394
, pinf
, 16 );
583 if( raw1394_set_port( p_sys
->p_avc1394
, port
) < 0 )
586 raw1394_set_bus_reset_handler( p_sys
->p_avc1394
, AVCResetHandler
);
588 return p_sys
->p_avc1394
;
591 static void AVCClose( access_t
*p_access
)
593 access_sys_t
*p_sys
= p_access
->p_sys
;
595 if( p_sys
->p_avc1394
)
597 raw1394_destroy_handle( p_sys
->p_avc1394
);
598 p_sys
->p_avc1394
= NULL
;
602 static int AVCResetHandler( raw1394handle_t handle
, unsigned int generation
)
604 raw1394_update_generation( handle
, generation
);
608 static int AVCPlay( access_t
*p_access
, int phyID
)
610 access_sys_t
*p_sys
= p_access
->p_sys
;
612 msg_Dbg( p_access
, "send play command over Digital Video control channel" );
614 if( p_sys
->p_avc1394
&& phyID
>= 0 )
616 if( !avc1394_vcr_is_recording( p_sys
->p_avc1394
, phyID
) &&
617 avc1394_vcr_is_playing( p_sys
->p_avc1394
, phyID
) != AVC1394_VCR_OPERAND_PLAY_FORWARD
)
618 avc1394_vcr_play( p_sys
->p_avc1394
, phyID
);
623 static int AVCPause( access_t
*p_access
, int phyID
)
625 access_sys_t
*p_sys
= p_access
->p_sys
;
627 if( p_sys
->p_avc1394
&& phyID
>= 0 )
629 if( !avc1394_vcr_is_recording( p_sys
->p_avc1394
, phyID
) &&
630 ( avc1394_vcr_is_playing( p_sys
->p_avc1394
, phyID
) != AVC1394_VCR_OPERAND_PLAY_FORWARD_PAUSE
) )
631 avc1394_vcr_pause( p_sys
->p_avc1394
, phyID
);
637 static int AVCStop( access_t
*p_access
, int phyID
)
639 access_sys_t
*p_sys
= p_access
->p_sys
;
641 msg_Dbg( p_access
, "closing Digital Video control channel" );
643 if ( p_sys
->p_avc1394
&& phyID
>= 0 )
644 avc1394_vcr_stop( p_sys
->p_avc1394
, phyID
);