iec61883_dv_t
iec61883_dv_recv_init (raw1394handle_t handle,
iec61883_dv_recv_t put_data,
void *callback_data)
{
struct iec61883_dv *dv;
assert (handle != NULL);
dv = malloc (sizeof (struct iec61883_dv));
if (!dv) {
errno = ENOMEM;
return NULL;
}
dv->channel = -1;
dv->handle = handle;
dv->put_data = put_data;
dv->get_data = NULL;
dv->callback_data = callback_data;
dv->buffer_packets = 1000;
dv->irq_interval = 250;
dv->synch = 0;
dv->speed = RAW1394_ISO_SPEED_100;
raw1394_set_userdata (handle, dv);
return dv;
}
iec61883_dv_t
iec61883_dv_xmit_init (raw1394handle_t handle,
int is_pal,
iec61883_dv_xmit_t get_data,
void *callback_data)
{
/* DV is composed of DIF blocks, each 480 bytes */
int dbs = DIF_BLOCK_SIZE / sizeof (quadlet_t);
int fdf = is_pal ? 0x80 : 0x00;
int syt_interval = is_pal ? 300 : 250;
int rate = syt_interval * (is_pal ? 25 : 30000.0/1001.0);
struct iec61883_dv *dv;
assert (handle != NULL);
dv = malloc (sizeof (struct iec61883_dv));
if (!dv) {
errno = ENOMEM;
return NULL;
}
dv->channel = -1;
dv->handle = handle;
dv->put_data = NULL;
dv->get_data = get_data;
dv->callback_data = callback_data;
dv->buffer_packets = 1000;
dv->prebuffer_packets = 1000;
dv->irq_interval = 250;
dv->synch = 0;
dv->speed = RAW1394_ISO_SPEED_100;
iec61883_cip_init (&dv->cip, IEC61883_FMT_DV, fdf, rate, dbs, syt_interval);
iec61883_cip_set_transmission_mode (&dv->cip, IEC61883_MODE_NON_BLOCKING);
raw1394_set_userdata (handle, dv);
return dv;
}
/** Open the raw1394 device and get a handle.
*
* \param port A 0-based number indicating which host adapter to use.
* \return a raw1394 handle.
*/
raw1394handle_t raw1394_open( int port )
{
int n_ports;
struct raw1394_portinfo pinf[ 16 ];
raw1394handle_t handle;
/* get a raw1394 handle */
#ifdef RAW1394_V_0_8
handle = raw1394_get_handle();
#else
handle = raw1394_new_handle();
#endif
if ( !handle )
{
fprintf( stderr, "raw1394 - failed to get handle: %s.\n", strerror( errno ) );
exit( EXIT_FAILURE );
}
if ( ( n_ports = raw1394_get_port_info( handle, pinf, 16 ) ) < 0 )
{
fprintf( stderr, "raw1394 - failed to get port info: %s.\n", strerror( errno ) );
raw1394_destroy_handle( handle );
exit( EXIT_FAILURE );
}
/* tell raw1394 which host adapter to use */
if ( raw1394_set_port( handle, port ) < 0 )
{
fprintf( stderr, "raw1394 - failed to set set port: %s.\n", strerror( errno ) );
exit( EXIT_FAILURE );
}
raw1394_set_userdata( handle, ( void* ) port );
return handle;
}
/*****************************************************************************
* Open: open the file
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
access_t *p_access = (access_t*)p_this;
access_sys_t *p_sys;
struct raw1394_portinfo port_inf[ 16 ];
msg_Dbg( p_access, "opening device" );
/* Set up p_access */
access_InitFields( p_access );
ACCESS_SET_CALLBACKS( NULL, Block, Control, NULL );
p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
if( !p_sys )
return VLC_EGENERIC;
p_sys->i_cards = 0;
p_sys->i_node = 0;
p_sys->i_port = 0;
p_sys->i_guid = 0;
p_sys->i_channel = 63;
p_sys->p_raw1394 = NULL;
p_sys->p_avc1394 = NULL;
p_sys->p_frame = NULL;
p_sys->p_ev = NULL;
vlc_mutex_init( &p_sys->lock );
p_sys->i_node = DiscoverAVC( p_access, &p_sys->i_port, p_sys->i_guid );
if( p_sys->i_node < 0 )
{
msg_Err( p_access, "failed to open a Firewire (IEEE1394) connection" );
Close( p_this );
return VLC_EGENERIC;
}
p_sys->p_avc1394 = AVCOpen( p_access, p_sys->i_port );
if( !p_sys->p_avc1394 )
{
msg_Err( p_access, "no Digital Video Control device found" );
Close( p_this );
return VLC_EGENERIC;
}
p_sys->p_raw1394 = raw1394_new_handle();
if( !p_sys->p_raw1394 )
{
msg_Err( p_access, "no Digital Video device found" );
Close( p_this );
return VLC_EGENERIC;
}
p_sys->i_cards = raw1394_get_port_info( p_sys->p_raw1394, port_inf, 16 );
if( p_sys->i_cards < 0 )
{
msg_Err( p_access, "failed to get port info" );
Close( p_this );
return VLC_EGENERIC;
}
if( raw1394_set_port( p_sys->p_raw1394, p_sys->i_port ) < 0 )
{
msg_Err( p_access, "failed to set port info" );
Close( p_this );
return VLC_EGENERIC;
}
if ( raw1394_iso_recv_init( p_sys->p_raw1394, Raw1394Handler,
ISOCHRONOUS_QUEUE_LENGTH, ISOCHRONOUS_MAX_PACKET_SIZE,
p_sys->i_channel, RAW1394_DMA_PACKET_PER_BUFFER, -1 ) < 0 )
{
msg_Err( p_access, "failed to init isochronous recv" );
Close( p_this );
return VLC_EGENERIC;
}
raw1394_set_userdata( p_sys->p_raw1394, p_access );
raw1394_iso_recv_start( p_sys->p_raw1394, -1, -1, 0 );
p_sys->raw1394_poll.fd = raw1394_get_fd( p_sys->p_raw1394 );
p_sys->raw1394_poll.events = POLLIN | POLLPRI;
/* Now create our event thread catcher */
p_sys->p_ev = calloc( 1, sizeof( *p_sys->p_ev ) );
if( !p_sys->p_ev )
{
msg_Err( p_access, "failed to create event thread struct" );
Close( p_this );
return VLC_ENOMEM;
}
p_sys->p_ev->p_frame = NULL;
p_sys->p_ev->pp_last = &p_sys->p_ev->p_frame;
p_sys->p_ev->p_access = p_access;
vlc_mutex_init( &p_sys->p_ev->lock );
if( vlc_clone( &p_sys->p_ev->thread, Raw1394EventThread,
p_sys->p_ev, VLC_THREAD_PRIORITY_OUTPUT ) )
{
msg_Err( p_access, "failed to clone event thread" );
Close( p_this );
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
bool firewire_source::try_open()
{
auto_raw1394 handle(raw1394_new_handle());
if (!handle.get())
return false;
raw1394_set_userdata(handle.get(), this);
int n_ports = raw1394_get_port_info(handle.get(), NULL, 0);
std::vector<raw1394_portinfo> ports(n_ports);
if (n_ports > 0)
{
int n_ports_again =
raw1394_get_port_info(handle.get(), &ports[0], n_ports);
if (n_ports > n_ports_again)
{
n_ports = n_ports_again;
ports.resize(n_ports);
}
}
if (n_ports == 0)
{
fprintf(stderr, "ERROR: No Firewire ports accessible\n");
return false;
}
// Try converting name to an integer
char * end;
int i = strtoul(port_name_.c_str(), &end, 10);
// If we didn't convert the whole string, assume it really is a name
if (*end)
for (i = 0; i != n_ports; ++i)
if (port_name_ == ports[i].name)
break;
if (i >= n_ports)
{
fprintf(stderr, "ERROR: %s: not found\n", port_name_.c_str());
return false;
}
if (verbose)
printf("INFO: Reading from Firewire port %s\n", ports[i].name);
if (raw1394_set_port(handle.get(), i))
{
perror("raw1394_set_port");
return false;
}
if (raw1394_iso_recv_init(handle.get(), raw_receive, /*buf_packets=*/ 600,
/*max_packet_size=*/
CIF_HEADER_SIZE + CIF_PACKET_SIZE + 8,
/*channel=*/ 63,
/*mode=*/ RAW1394_DMA_DEFAULT,
/*irq_interval=*/ 100))
{
perror("raw1394_iso_recv_init");
return false;
}
if (raw1394_iso_recv_start(handle.get(), -1, -1, -1))
{
perror("raw1394_iso_recv_start");
raw1394_iso_shutdown(handle.get()); // see comment on destructor
return false;
}
handle_ = handle;
return true;
}
static gboolean
gst_hdv1394src_start (GstBaseSrc * bsrc)
{
GstHDV1394Src *src = GST_HDV1394SRC (bsrc);
int control_sock[2];
src->connected = FALSE;
if (socketpair (PF_UNIX, SOCK_STREAM, 0, control_sock) < 0)
goto socket_pair;
READ_SOCKET (src) = control_sock[0];
WRITE_SOCKET (src) = control_sock[1];
if (fcntl (READ_SOCKET (src), F_SETFL, O_NONBLOCK) < 0)
GST_ERROR_OBJECT (src, "failed to make read socket non-blocking: %s",
g_strerror (errno));
if (fcntl (WRITE_SOCKET (src), F_SETFL, O_NONBLOCK) < 0)
GST_ERROR_OBJECT (src, "failed to make write socket non-blocking: %s",
g_strerror (errno));
src->handle = raw1394_new_handle ();
if (!src->handle) {
if (errno == EACCES)
goto permission_denied;
else if (errno == ENOENT)
goto not_found;
else
goto no_handle;
}
src->num_ports = raw1394_get_port_info (src->handle, src->pinfo, 16);
if (src->num_ports == 0)
goto no_ports;
if (src->use_avc || src->port == -1)
src->avc_node = gst_hdv1394src_discover_avc_node (src);
/* lets destroy handle and create one on port
this is more reliable than setting port on
the existing handle */
raw1394_destroy_handle (src->handle);
src->handle = raw1394_new_handle_on_port (src->port);
if (!src->handle)
goto cannot_set_port;
raw1394_set_userdata (src->handle, src);
raw1394_set_bus_reset_handler (src->handle, gst_hdv1394src_bus_reset);
{
nodeid_t m_node = (src->avc_node | 0xffc0);
int m_channel = -1;
int m_bandwidth = 0;
int m_outputPort = -1;
int m_inputPort = -1;
m_channel = iec61883_cmp_connect (src->handle, m_node, &m_outputPort,
raw1394_get_local_id (src->handle), &m_inputPort, &m_bandwidth);
if (m_channel >= 0) {
src->channel = m_channel;
}
}
if ((src->iec61883mpeg2 =
iec61883_mpeg2_recv_init (src->handle,
gst_hdv1394src_iec61883_receive, src)) == NULL)
goto cannot_initialise_dv;
#if 0
raw1394_set_iso_handler (src->handle, src->channel,
gst_hdv1394src_iso_receive);
#endif
GST_DEBUG_OBJECT (src, "successfully opened up 1394 connection");
src->connected = TRUE;
if (iec61883_mpeg2_recv_start (src->iec61883mpeg2, src->channel) != 0)
goto cannot_start;
#if 0
if (raw1394_start_iso_rcv (src->handle, src->channel) < 0)
goto cannot_start;
#endif
if (src->use_avc) {
raw1394handle_t avc_handle = raw1394_new_handle_on_port (src->port);
GST_LOG ("We have an avc_handle");
/* start the VCR */
if (avc_handle) {
if (!avc1394_vcr_is_recording (avc_handle, src->avc_node)
&& avc1394_vcr_is_playing (avc_handle, src->avc_node)
!= AVC1394_VCR_OPERAND_PLAY_FORWARD) {
GST_LOG ("Calling avc1394_vcr_play()");
avc1394_vcr_play (avc_handle, src->avc_node);
}
raw1394_destroy_handle (avc_handle);
} else {
GST_WARNING_OBJECT (src, "Starting VCR via avc1394 failed: %s",
g_strerror (errno));
}
}
return TRUE;
socket_pair:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ_WRITE, (NULL),
GST_ERROR_SYSTEM);
return FALSE;
}
permission_denied:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), GST_ERROR_SYSTEM);
return FALSE;
}
not_found:
{
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL), GST_ERROR_SYSTEM);
return FALSE;
}
no_handle:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("can't get raw1394 handle (%s)", g_strerror (errno)));
return FALSE;
}
no_ports:
{
raw1394_destroy_handle (src->handle);
src->handle = NULL;
GST_ELEMENT_ERROR (src, RESOURCE, NOT_FOUND, (NULL),
("no ports available for raw1394"));
return FALSE;
}
cannot_set_port:
{
GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS, (NULL),
("can't set 1394 port %d", src->port));
return FALSE;
}
cannot_start:
{
raw1394_destroy_handle (src->handle);
src->handle = NULL;
iec61883_mpeg2_close (src->iec61883mpeg2);
src->iec61883mpeg2 = NULL;
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
("can't start 1394 iso receive"));
return FALSE;
}
cannot_initialise_dv:
{
raw1394_destroy_handle (src->handle);
src->handle = NULL;
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
("can't initialise iec61883 hdv"));
return FALSE;
}
}
int cpi_enumerate_devices( unicap_device_t *device, int index )
{
raw1394handle_t raw1394handle;
int numcards;
struct raw1394_portinfo portinfo[16];
int current_index = 0;
int card = 0;
/* TRACE( "dcam_enumerate_devices ( i = %d ) \n", index ); */
raw1394handle = raw1394_new_handle();
if( !raw1394handle )
{
if( !errno )
{
TRACE( "dcam: no kernel support\n" );
return STATUS_NO_DEVICE;
}
else
{
TRACE( "dcam: can' t get handle\n" );
return STATUS_NO_DEVICE;
}
}
numcards = raw1394_get_port_info( raw1394handle, portinfo, 16 );
if( !numcards )
{
TRACE( "dcam: no 1394 cards!\n" );
raw1394_destroy_handle( raw1394handle );
return STATUS_NO_DEVICE;
}
else if( numcards < 0 )
{
raw1394_destroy_handle( raw1394handle );
return STATUS_NO_DEVICE;
}
raw1394_destroy_handle( raw1394handle );
// go through all present cards, search for cameras
for( card = 0; card < numcards; card++ )
{
int nodecount;
int node = 0;
if( ( raw1394handle = raw1394_new_handle_on_port( card ) ) == 0 )
{
return STATUS_NO_DEVICE;
}
raw1394_set_userdata( raw1394handle, 0 );
TRACE( "dcam: probing card %d\n", card );
nodecount = raw1394_get_nodecount( raw1394handle );
for( node = 0; node < nodecount; node++ )
{
int unit_directory_count;
int directory;
TRACE( "dcam: probing node %d\n", node );
// shortcut since most devices only have 1 unit directory
if( _dcam_is_compatible( raw1394handle, node, 0 ) )
{
if( index == current_index )
{
unicap_status_t status;
status = _dcam_get_device_info( raw1394handle, node, 0, device );
if( status == STATUS_SUCCESS )
{
TRACE( "found dcam\n" );
// got the device with the index we want
raw1394_destroy_handle( raw1394handle );
return status;
}
else
{
TRACE( "can not get device info!\n" );
}
}
current_index++;
continue;
}
unit_directory_count = _dcam_get_directory_count( raw1394handle, node );
if( unit_directory_count <= 1 )
{
TRACE( "directory count <= 1 for node: %d\n", node );
continue; // try next device
}
// scan through all directories of this device
for( directory = 1; directory < unit_directory_count; directory++ )
{
if( _dcam_is_compatible( raw1394handle, node, directory ) )
{
if( index == current_index )
{
unicap_status_t status;
status = _dcam_get_device_info( raw1394handle, node, directory, device );
if( status == STATUS_SUCCESS )
{
// got the device with the index we want
raw1394_destroy_handle( raw1394handle );
return status;
}
}
current_index++;
}
}// for( directory..
}// for( node..
raw1394_destroy_handle( raw1394handle );
}// for( card..
return STATUS_NO_DEVICE;
}