void *
arv_fake_gv_camera_thread (void *user_data)
{
ArvFakeGvCamera *gv_camera = user_data;
ArvBuffer *image_buffer = NULL;
GError *error = NULL;
GSocketAddress *stream_address = NULL;
void *packet_buffer;
size_t packet_size;
size_t payload = 0;
guint16 block_id;
ptrdiff_t offset;
guint32 gv_packet_size;
packet_buffer = g_malloc (ARV_FAKE_GV_CAMERA_BUFFER_SIZE);
do {
if (arv_fake_camera_get_control_channel_privilege (gv_camera->camera) == 0 ||
arv_fake_camera_get_acquisition_status (gv_camera->camera) == 0) {
if (stream_address != NULL) {
g_object_unref (stream_address);
stream_address = NULL;
g_object_unref (image_buffer);
image_buffer = NULL;
arv_debug_stream_thread ("[FakeGvCamera::stream_thread] Stop stream");
}
g_usleep (100000);
} else {
if (stream_address == NULL) {
GInetAddress *inet_address;
char *inet_address_string;
stream_address = arv_fake_camera_get_stream_address (gv_camera->camera);
inet_address = g_inet_socket_address_get_address
(G_INET_SOCKET_ADDRESS (stream_address));
inet_address_string = g_inet_address_to_string (inet_address);
arv_debug_stream_thread ("[FakeGvCamera::stream_thread] Start stream to %s (%d)",
inet_address_string,
g_inet_socket_address_get_port
(G_INET_SOCKET_ADDRESS (stream_address)));
g_free (inet_address_string);
payload = arv_fake_camera_get_payload (gv_camera->camera);
image_buffer = arv_buffer_new (payload, NULL);
}
arv_fake_camera_wait_for_next_frame (gv_camera->camera);
arv_fake_camera_fill_buffer (gv_camera->camera, image_buffer, &gv_packet_size);
block_id = 0;
packet_size = ARV_FAKE_GV_CAMERA_BUFFER_SIZE;
arv_gvsp_packet_new_data_leader (image_buffer->frame_id,
block_id,
image_buffer->timestamp_ns,
image_buffer->pixel_format,
image_buffer->width, image_buffer->height,
image_buffer->x_offset, image_buffer->y_offset,
packet_buffer, &packet_size);
g_socket_send_to (gv_camera->gvsp_socket, stream_address,
packet_buffer, packet_size, NULL, &error);
if (error != NULL) {
arv_warning_stream_thread ("[ArvFakeGvCamera::stream_thread] Socket send error [%s]",
error->message);
g_error_free (error);
error = NULL;
}
block_id++;
offset = 0;
while (offset < payload) {
size_t data_size;
data_size = MIN (gv_packet_size - ARV_GVSP_PACKET_PROTOCOL_OVERHEAD,
payload - offset);
packet_size = ARV_FAKE_GV_CAMERA_BUFFER_SIZE;
arv_gvsp_packet_new_data_block (image_buffer->frame_id, block_id,
data_size, ((char *) image_buffer->data) + offset,
packet_buffer, &packet_size);
g_socket_send_to (gv_camera->gvsp_socket, stream_address,
packet_buffer, packet_size, NULL, NULL);
offset += data_size;
block_id++;
}
packet_size = ARV_FAKE_GV_CAMERA_BUFFER_SIZE;
arv_gvsp_packet_new_data_trailer (image_buffer->frame_id, block_id,
packet_buffer, &packet_size);
g_socket_send_to (gv_camera->gvsp_socket, stream_address,
packet_buffer, packet_size, NULL, NULL);
}
} while (!cancel);
if (stream_address != NULL)
g_object_unref (stream_address);
if (image_buffer != NULL)
g_object_unref (image_buffer);
g_free (packet_buffer);
return NULL;
}
gboolean
handle_control_packet (ArvGvFakeCamera *gv_fake_camera, GSocket *socket,
GSocketAddress *remote_address,
ArvGvcpPacket *packet, size_t size)
{
ArvGvcpPacket *ack_packet = NULL;
size_t ack_packet_size;
guint32 block_address;
guint32 block_size;
guint16 packet_id;
guint16 packet_type;
guint32 register_address;
guint32 register_value;
gboolean write_access;
gboolean success = FALSE;
if (gv_fake_camera->priv->controller_address != NULL) {
gint64 time;
guint64 elapsed_ms;
time = g_get_real_time ();
elapsed_ms = (time - gv_fake_camera->priv->controller_time) / 1000;
if (elapsed_ms > arv_fake_camera_get_heartbeat_timeout (gv_fake_camera->priv->camera)) {
g_object_unref (gv_fake_camera->priv->controller_address);
gv_fake_camera->priv->controller_address = NULL;
write_access = TRUE;
arv_warning_device ("[GvFakeCamera::handle_control_packet] Heartbeat timeout");
arv_fake_camera_set_control_channel_privilege (gv_fake_camera->priv->camera, 0);
} else
write_access = _g_inet_socket_address_is_equal
(G_INET_SOCKET_ADDRESS (remote_address),
G_INET_SOCKET_ADDRESS (gv_fake_camera->priv->controller_address));
} else
write_access = TRUE;
arv_gvcp_packet_debug (packet, ARV_DEBUG_LEVEL_LOG);
packet_id = arv_gvcp_packet_get_packet_id (packet);
packet_type = arv_gvcp_packet_get_packet_type (packet);
if (packet_type != ARV_GVCP_PACKET_TYPE_CMD) {
arv_warning_device ("[GvFakeCamera::handle_control_packet] Unknown packet type");
return FALSE;
}
switch (g_ntohs (packet->header.command)) {
case ARV_GVCP_COMMAND_DISCOVERY_CMD:
ack_packet = arv_gvcp_packet_new_discovery_ack (&ack_packet_size);
arv_debug_device ("[GvFakeCamera::handle_control_packet] Discovery command");
arv_fake_camera_read_memory (gv_fake_camera->priv->camera, 0, ARV_GVBS_DISCOVERY_DATA_SIZE,
&ack_packet->data);
break;
case ARV_GVCP_COMMAND_READ_MEMORY_CMD:
arv_gvcp_packet_get_read_memory_cmd_infos (packet, &block_address, &block_size);
arv_debug_device ("[GvFakeCamera::handle_control_packet] Read memory command %d (%d)",
block_address, block_size);
ack_packet = arv_gvcp_packet_new_read_memory_ack (block_address, block_size,
packet_id, &ack_packet_size);
arv_fake_camera_read_memory (gv_fake_camera->priv->camera, block_address, block_size,
arv_gvcp_packet_get_read_memory_ack_data (ack_packet));
break;
case ARV_GVCP_COMMAND_WRITE_MEMORY_CMD:
arv_gvcp_packet_get_write_memory_cmd_infos (packet, &block_address, &block_size);
if (!write_access) {
arv_warning_device("[GvFakeCamera::handle_control_packet] Ignore Write memory command %d (%d) not controller",
block_address, block_size);
break;
}
arv_debug_device ("[GvFakeCamera::handle_control_packet] Write memory command %d (%d)",
block_address, block_size);
arv_fake_camera_write_memory (gv_fake_camera->priv->camera, block_address, block_size,
arv_gvcp_packet_get_write_memory_cmd_data (packet));
ack_packet = arv_gvcp_packet_new_write_memory_ack (block_address, packet_id,
&ack_packet_size);
break;
case ARV_GVCP_COMMAND_READ_REGISTER_CMD:
arv_gvcp_packet_get_read_register_cmd_infos (packet, ®ister_address);
arv_fake_camera_read_register (gv_fake_camera->priv->camera, register_address, ®ister_value);
arv_debug_device ("[GvFakeCamera::handle_control_packet] Read register command %d -> %d",
register_address, register_value);
ack_packet = arv_gvcp_packet_new_read_register_ack (register_value, packet_id,
&ack_packet_size);
if (register_address == ARV_GVBS_CONTROL_CHANNEL_PRIVILEGE_OFFSET)
gv_fake_camera->priv->controller_time = g_get_real_time ();
break;
case ARV_GVCP_COMMAND_WRITE_REGISTER_CMD:
arv_gvcp_packet_get_write_register_cmd_infos (packet, ®ister_address, ®ister_value);
if (!write_access) {
arv_warning_device("[GvFakeCamera::handle_control_packet] Ignore Write register command %d (%d) not controller",
register_address, register_value);
break;
}
arv_fake_camera_write_register (gv_fake_camera->priv->camera, register_address, register_value);
arv_debug_device ("[GvFakeCamera::handle_control_packet] Write register command %d -> %d",
register_address, register_value);
ack_packet = arv_gvcp_packet_new_write_register_ack (1, packet_id,
&ack_packet_size);
break;
default:
arv_warning_device ("[GvFakeCamera::handle_control_packet] Unknown command");
}
if (ack_packet != NULL) {
g_socket_send_to (socket, remote_address, (char *) ack_packet, ack_packet_size, NULL, NULL);
arv_gvcp_packet_debug (ack_packet, ARV_DEBUG_LEVEL_LOG);
g_free (ack_packet);
success = TRUE;
}
if (gv_fake_camera->priv->controller_address == NULL &&
arv_fake_camera_get_control_channel_privilege (gv_fake_camera->priv->camera) != 0) {
g_object_ref (remote_address);
arv_debug_device("[GvFakeCamera::handle_control_packet] New controller");
gv_fake_camera->priv->controller_address = remote_address;
gv_fake_camera->priv->controller_time = g_get_real_time ();
}
else if (gv_fake_camera->priv->controller_address != NULL &&
arv_fake_camera_get_control_channel_privilege (gv_fake_camera->priv->camera) == 0) {
g_object_unref (gv_fake_camera->priv->controller_address);
arv_debug_device("[GvFakeCamera::handle_control_packet] Controller releases");
gv_fake_camera->priv->controller_address = NULL;
gv_fake_camera->priv->controller_time = g_get_real_time ();
}
return success;
}
void
handle_control_packet (ArvFakeGvCamera *gv_camera, GSocket *socket,
GSocketAddress *remote_address,
ArvGvcpPacket *packet, size_t size)
{
ArvGvcpPacket *ack_packet = NULL;
size_t ack_packet_size;
guint32 block_address;
guint32 block_size;
guint16 packet_id;
guint32 register_address;
guint32 register_value;
gboolean write_access;
if (gv_camera->controller_address != NULL) {
struct timespec time;
guint64 elapsed_ms;
clock_gettime (CLOCK_MONOTONIC, &time);
elapsed_ms = 1000 * (time.tv_sec - gv_camera->controller_time.tv_sec) +
(time.tv_nsec - gv_camera->controller_time.tv_nsec) / 1000000;
if (elapsed_ms > arv_fake_camera_get_heartbeat_timeout (gv_camera->camera)) {
g_object_ref (gv_camera->controller_address);
gv_camera->controller_address = NULL;
write_access = TRUE;
arv_warning_device ("[FakeGvCamera::handle_control_packet] Heartbeat timeout");
arv_fake_camera_set_control_channel_privilege (gv_camera->camera, 0);
} else
write_access = _g_inet_socket_address_is_equal
(G_INET_SOCKET_ADDRESS (remote_address),
G_INET_SOCKET_ADDRESS (gv_camera->controller_address));
} else
write_access = TRUE;
arv_gvcp_packet_debug (packet, ARV_DEBUG_LEVEL_LOG);
packet_id = arv_gvcp_packet_get_packet_id (packet);
switch (g_ntohs (packet->header.command)) {
case ARV_GVCP_COMMAND_DISCOVERY_CMD:
ack_packet = arv_gvcp_packet_new_discovery_ack (&ack_packet_size);
arv_debug_device ("[FakeGvCamera::handle_control_packet] Discovery command");
arv_fake_camera_read_memory (gv_camera->camera, 0, ARV_GVBS_DISCOVERY_DATA_SIZE,
&ack_packet->data);
break;
case ARV_GVCP_COMMAND_READ_MEMORY_CMD:
arv_gvcp_packet_get_read_memory_cmd_infos (packet, &block_address, &block_size);
arv_debug_device ("[FakeGvCamera::handle_control_packet] Read memory command %d (%d)",
block_address, block_size);
ack_packet = arv_gvcp_packet_new_read_memory_ack (block_address, block_size,
packet_id, &ack_packet_size);
arv_fake_camera_read_memory (gv_camera->camera, block_address, block_size,
arv_gvcp_packet_get_read_memory_ack_data (ack_packet));
break;
case ARV_GVCP_COMMAND_WRITE_MEMORY_CMD:
if (!write_access)
break;
arv_gvcp_packet_get_write_memory_cmd_infos (packet, &block_address, &block_size);
arv_debug_device ("[FakeGvCamera::handle_control_packet] Write memory command %d (%d)",
block_address, block_size);
arv_fake_camera_write_memory (gv_camera->camera, block_address, block_size,
arv_gvcp_packet_get_write_memory_cmd_data (packet));
ack_packet = arv_gvcp_packet_new_write_memory_ack (block_address, packet_id,
&ack_packet_size);
break;
case ARV_GVCP_COMMAND_READ_REGISTER_CMD:
arv_gvcp_packet_get_read_register_cmd_infos (packet, ®ister_address);
arv_fake_camera_read_register (gv_camera->camera, register_address, ®ister_value);
arv_debug_device ("[FakeGvCamera::handle_control_packet] Read register command %d -> %d",
register_address, register_value);
ack_packet = arv_gvcp_packet_new_read_register_ack (register_value, packet_id,
&ack_packet_size);
if (register_address == ARV_GVBS_CONTROL_CHANNEL_PRIVILEGE_OFFSET)
clock_gettime (CLOCK_MONOTONIC, &gv_camera->controller_time);
break;
case ARV_GVCP_COMMAND_WRITE_REGISTER_CMD:
if (!write_access)
break;
arv_gvcp_packet_get_write_register_cmd_infos (packet, ®ister_address, ®ister_value);
arv_fake_camera_write_register (gv_camera->camera, register_address, register_value);
arv_debug_device ("[FakeGvCamera::handle_control_packet] Write register command %d -> %d",
register_address, register_value);
ack_packet = arv_gvcp_packet_new_write_register_ack (register_value, packet_id,
&ack_packet_size);
break;
default:
arv_warning_device ("[FakeGvCamera::handle_control_packet] Unknown command");
}
if (ack_packet != NULL) {
g_socket_send_to (socket, remote_address, (char *) ack_packet, ack_packet_size, NULL, NULL);
arv_gvcp_packet_debug (ack_packet, ARV_DEBUG_LEVEL_LOG);
g_free (ack_packet);
}
if (gv_camera->controller_address == NULL &&
arv_fake_camera_get_control_channel_privilege (gv_camera->camera) != 0) {
g_object_ref (remote_address);
gv_camera->controller_address = remote_address;
clock_gettime (CLOCK_MONOTONIC, &gv_camera->controller_time);
}
}
void *
_thread (void *user_data)
{
ArvGvFakeCamera *gv_fake_camera = user_data;
ArvBuffer *image_buffer = NULL;
GError *error = NULL;
GSocketAddress *stream_address = NULL;
void *packet_buffer;
size_t packet_size;
size_t payload = 0;
guint16 block_id;
ptrdiff_t offset;
guint32 gv_packet_size;
GInputVector input_vector;
int n_events;
gboolean is_streaming = FALSE;
input_vector.buffer = g_malloc0 (ARV_GV_FAKE_CAMERA_BUFFER_SIZE);
input_vector.size = ARV_GV_FAKE_CAMERA_BUFFER_SIZE;
packet_buffer = g_malloc (ARV_GV_FAKE_CAMERA_BUFFER_SIZE);
do {
guint64 next_timestamp_us;
guint64 sleep_time_us;
if (is_streaming) {
sleep_time_us = arv_fake_camera_get_sleep_time_for_next_frame (gv_fake_camera->priv->camera, &next_timestamp_us);
} else {
sleep_time_us = 100000;
next_timestamp_us = g_get_real_time () + sleep_time_us;
}
do {
gint timeout_ms;
timeout_ms = MIN (100, (next_timestamp_us - g_get_real_time ()) / 1000LL);
if (timeout_ms < 0)
timeout_ms = 0;
n_events = g_poll (gv_fake_camera->priv->gvcp_fds, 2, timeout_ms);
if (n_events > 0) {
GSocketAddress *remote_address = NULL;
int count;
count = g_socket_receive_message (gv_fake_camera->priv->gvcp_socket,
&remote_address, &input_vector, 1, NULL, NULL,
NULL, NULL, NULL);
if (count > 0) {
if (handle_control_packet (gv_fake_camera, gv_fake_camera->priv->gvcp_socket,
remote_address, input_vector.buffer, count))
arv_debug_device ("[GvFakeCamera::thread] Control packet received");
}
g_clear_object (&remote_address);
if (gv_fake_camera->priv->discovery_socket != NULL) {
count = g_socket_receive_message (gv_fake_camera->priv->discovery_socket,
&remote_address, &input_vector, 1, NULL, NULL,
NULL, NULL, NULL);
if (count > 0) {
if (handle_control_packet (gv_fake_camera, gv_fake_camera->priv->discovery_socket,
remote_address, input_vector.buffer, count))
arv_debug_device ("[GvFakeCamera::thread]"
" Control packet received on discovery socket\n");
}
g_clear_object (&remote_address);
}
if (arv_fake_camera_get_control_channel_privilege (gv_fake_camera->priv->camera) == 0 ||
arv_fake_camera_get_acquisition_status (gv_fake_camera->priv->camera) == 0) {
if (stream_address != NULL) {
g_object_unref (stream_address);
stream_address = NULL;
g_object_unref (image_buffer);
image_buffer = NULL;
arv_debug_stream_thread ("[GvFakeCamera::thread] Stop stream");
}
is_streaming = FALSE;
}
}
} while (!g_atomic_int_get (&gv_fake_camera->priv->cancel) && g_get_real_time () < next_timestamp_us);
if (arv_fake_camera_get_control_channel_privilege (gv_fake_camera->priv->camera) != 0 &&
arv_fake_camera_get_acquisition_status (gv_fake_camera->priv->camera) != 0) {
if (stream_address == NULL) {
GInetAddress *inet_address;
char *inet_address_string;
stream_address = arv_fake_camera_get_stream_address (gv_fake_camera->priv->camera);
inet_address = g_inet_socket_address_get_address
(G_INET_SOCKET_ADDRESS (stream_address));
inet_address_string = g_inet_address_to_string (inet_address);
arv_debug_stream_thread ("[GvFakeCamera::thread] Start stream to %s (%d)",
inet_address_string,
g_inet_socket_address_get_port
(G_INET_SOCKET_ADDRESS (stream_address)));
g_free (inet_address_string);
payload = arv_fake_camera_get_payload (gv_fake_camera->priv->camera);
image_buffer = arv_buffer_new (payload, NULL);
}
arv_fake_camera_fill_buffer (gv_fake_camera->priv->camera, image_buffer, &gv_packet_size);
arv_debug_stream_thread ("[GvFakeCamera::thread] Send frame %d", image_buffer->priv->frame_id);
block_id = 0;
packet_size = ARV_GV_FAKE_CAMERA_BUFFER_SIZE;
arv_gvsp_packet_new_data_leader (image_buffer->priv->frame_id,
block_id,
image_buffer->priv->timestamp_ns,
image_buffer->priv->pixel_format,
image_buffer->priv->width, image_buffer->priv->height,
image_buffer->priv->x_offset, image_buffer->priv->y_offset,
packet_buffer, &packet_size);
g_socket_send_to (gv_fake_camera->priv->gvsp_socket, stream_address,
packet_buffer, packet_size, NULL, &error);
if (error != NULL) {
arv_warning_stream_thread ("[GvFakeCamera::thread] Failed to send leader for frame %d: %s",
image_buffer->priv->frame_id, error->message);
g_clear_error (&error);
}
block_id++;
offset = 0;
while (offset < payload) {
size_t data_size;
data_size = MIN (gv_packet_size - ARV_GVSP_PACKET_PROTOCOL_OVERHEAD,
payload - offset);
packet_size = ARV_GV_FAKE_CAMERA_BUFFER_SIZE;
arv_gvsp_packet_new_data_block (image_buffer->priv->frame_id, block_id,
data_size, ((char *) image_buffer->priv->data) + offset,
packet_buffer, &packet_size);
g_socket_send_to (gv_fake_camera->priv->gvsp_socket, stream_address,
packet_buffer, packet_size, NULL, &error);
if (error != NULL) {
arv_debug_stream_thread ("[GvFakeCamera::thread] Failed to send frame block %d for frame: %s",
block_id,
image_buffer->priv->frame_id,
error->message);
g_clear_error (&error);
}
offset += data_size;
block_id++;
}
packet_size = ARV_GV_FAKE_CAMERA_BUFFER_SIZE;
arv_gvsp_packet_new_data_trailer (image_buffer->priv->frame_id, block_id,
packet_buffer, &packet_size);
g_socket_send_to (gv_fake_camera->priv->gvsp_socket, stream_address,
packet_buffer, packet_size, NULL, &error);
if (error != NULL) {
arv_debug_stream_thread ("[GvFakeCamera::thread] Failed to send trailer for frame %d: %s",
image_buffer->priv->frame_id,
error->message);
g_clear_error (&error);
}
is_streaming = TRUE;
}
} while (!g_atomic_int_get (&gv_fake_camera->priv->cancel));
if (stream_address != NULL)
g_object_unref (stream_address);
if (image_buffer != NULL)
g_object_unref (image_buffer);
g_free (packet_buffer);
g_free (input_vector.buffer);
return NULL;
}
