static void prepare_yuv_buffer( unicap_data_buffer_t *buffer, unicap_format_t *format )
{
unicap_copy_format( &buffer->format, format );
buffer->format.fourcc = UCIL_FOURCC( 'I', '4', '2', '0' );
buffer->format.bpp = 12;
buffer->format.buffer_size = format->size.width * format->size.height * 12 / 8;
buffer->buffer_size = buffer->format.buffer_size;
buffer->data = malloc( buffer->buffer_size );
/* start_time = get_time(); */
}
static unicap_status_t theoracpi_enumerate_formats( ucil_theora_input_file_object_t *vobj, unicap_format_t *format, int index )
{
unicap_status_t status = STATUS_NO_MATCH;
if( index == 0 )
{
unicap_copy_format( format, &vobj->format );
status = STATUS_SUCCESS;
}
return status;
}
static unicap_status_t aravis_enumerate_formats( aravis_handle_t handle, unicap_format_t *format, int index )
{
unicap_status_t status = STATUS_NO_MATCH;
if ((index >= 0) && (index < handle->n_formats)){
unicap_copy_format (format, &handle->formats[index]);
status = STATUS_SUCCESS;
}
return status;
}
static unicap_status_t aravis_set_format( aravis_handle_t handle, unicap_format_t *format )
{
ArvPixelFormat fmt = aravis_tools_get_pixel_format (format);
if (fmt == 0)
return STATUS_INVALID_PARAMETER;
arv_camera_set_pixel_format (handle->camera, fmt);
arv_camera_set_region (handle->camera, format->size.x, format->size.y, format->size.width, format->size.height);
unicap_copy_format (&handle->current_format, format);
return STATUS_SUCCESS;
}
static void aravis_stream_callback( aravis_handle_t handle, ArvStreamCallbackType type, ArvBuffer *buffer)
{
if (type == ARV_STREAM_CALLBACK_TYPE_BUFFER_DONE){
unicap_data_buffer_t data_buffer;
unicap_copy_format (&data_buffer.format, &handle->current_format);
data_buffer.buffer_size = buffer->size;
data_buffer.data = buffer->data;
data_buffer.type = UNICAP_BUFFER_TYPE_SYSTEM;
data_buffer.fill_time.tv_sec = buffer->timestamp_ns / 1000000000ULL;
data_buffer.fill_time.tv_usec = (buffer->timestamp_ns % 1000000000ULL) / 1000ULL;
handle->event_callback (handle->unicap_handle, UNICAP_EVENT_NEW_FRAME, &data_buffer);
arv_stream_push_buffer (handle->stream, buffer);
}
}
void backend_gtk_update_image( gpointer _data, unicap_data_buffer_t *data_buffer, GError **err )
{
unicap_data_buffer_t tmp_buffer;
struct backend_data *data = _data;
int tmp;
if( !data_buffer )
{
g_warning( "update_image: data_buffer == NULL!\n" );
return;
}
if( /* ( data_buffer->format.fourcc != data->format.fourcc ) || */
( data_buffer->format.size.width != data->format.size.width ) ||
( data_buffer->format.size.height != data->format.size.height ) /* || */
/* ( data_buffer->format.bpp != data->format.bpp )*/ )
{
g_warning( "update_image: data_buffer format missmatch\n" );
return;
}
unicap_copy_format( &tmp_buffer.format, &data_buffer->format );
tmp_buffer.format.bpp = 24;
tmp_buffer.format.fourcc = UCIL_FOURCC( 'R', 'G', 'B', '3' );
tmp = ( data->current_buffer + 1 ) % NUM_BUFFERS;
memcpy( &data->fill_times[tmp], &data_buffer->fill_time, sizeof( struct timeval ) );
tmp_buffer.data = data->image_data[tmp];
tmp_buffer.buffer_size = data->format.size.width * data->format.size.height * 3;
if( !data->color_conversion_cb )
{
ucil_convert_buffer( &tmp_buffer, data_buffer );
}
else
{
if( !data->color_conversion_cb( &tmp_buffer, data_buffer, data->color_conversion_data ) )
{
ucil_convert_buffer( &tmp_buffer, data_buffer );
}
}
}
int main (int argc, char *argv [])
{
unicap_handle_t handle;
unicap_device_t device;
unicap_format_t src_format;
unicap_format_t dest_format;
unicap_data_buffer_t src_buffer;
unicap_data_buffer_t dest_buffer;
unicap_data_buffer_t *returned_buffer;
if (argc != 4) {
fprintf (stderr, "Usage: sender <hostname> <camera name> "
"<interface>\n");
exit (1);
}
// Initialise 0MQ infrastructure
// 1. Set error handler function (to ignore disconnected receivers)
zmq::set_error_handler (error_handler);
// 2. Initialise basic infrastructure for 2 threads
zmq::dispatcher_t dispatcher (2);
// 3. Initialise local locator (to connect to global locator)
zmq::locator_t locator (argv [1]);
// 4. Start one working thread (to send data to receivers)
zmq::poll_thread_t *pt = zmq::poll_thread_t::create (&dispatcher);
// 5. Register one API thread (the application thread - the one that
// is being executed at the moment)
zmq::api_thread_t *api = zmq::api_thread_t::create (&dispatcher, &locator);
// 6. Define an entry point for the messages. The name of the entry point
// is user-defined ("camera name"). Specify that working thread "pt"
// will be used to listen to new connections being created as well as
// to send frames to existing connections.
int e_id = api->create_exchange (argv [2], zmq::scope_global, argv [3],
pt, 1, &pt);
// Open first available video capture device
if (!SUCCESS (unicap_enumerate_devices (NULL, &device, 0))) {
fprintf (stderr, "Could not enumerate devices\n");
exit (1);
}
if (!SUCCESS (unicap_open (&handle, &device))) {
fprintf (stderr, "Failed to open device: %s\n", device.identifier);
exit (1);
}
printf( "Opened video capture device: %s\n", device.identifier );
// Find a suitable video format that we can convert to RGB24
bool conversion_found = false;
int index = 0;
while (SUCCESS (unicap_enumerate_formats (handle, NULL, &src_format,
index))) {
printf ("Trying video format: %s\n", src_format.identifier);
if (ucil_conversion_supported (FOURCC ('R', 'G', 'B', '3'),
src_format.fourcc)) {
conversion_found = true;
break;
}
index++;
}
if (!conversion_found) {
fprintf (stderr, "Could not find a suitable video format\n");
exit (1);
}
src_format.buffer_type = UNICAP_BUFFER_TYPE_USER;
if (!SUCCESS (unicap_set_format (handle, &src_format))) {
fprintf (stderr, "Failed to set video format\n");
exit (1);
}
printf ("Using video format: %s [%dx%d]\n",
src_format.identifier,
src_format.size.width,
src_format.size.height);
// Clone destination format with equal dimensions, but RGB24 colorspace
unicap_copy_format (&dest_format, &src_format);
strcpy (dest_format.identifier, "RGB 24bpp");
dest_format.fourcc = FOURCC ('R', 'G', 'B', '3');
dest_format.bpp = 24;
dest_format.buffer_size = dest_format.size.width *
dest_format.size.height * 3;
// Initialise image buffers
memset (&src_buffer, 0, sizeof (unicap_data_buffer_t));
src_buffer.data = (unsigned char *)malloc (src_format.buffer_size);
src_buffer.buffer_size = src_format.buffer_size;
memset (&dest_buffer, 0, sizeof (unicap_data_buffer_t));
dest_buffer.data = (unsigned char *)malloc (dest_format.buffer_size);
dest_buffer.buffer_size = dest_format.buffer_size;
dest_buffer.format = dest_format;
// Start video capture
if (!SUCCESS (unicap_start_capture (handle))) {
fprintf (stderr, "Failed to start capture on device: %s\n",
device.identifier);
exit (1);
}
// Loop, sending video to defined exchange
while (1) {
// Queue buffer for video capture
if (!SUCCESS (unicap_queue_buffer (handle, &src_buffer))) {
fprintf (stderr, "Failed to queue a buffer on device: %s\n",
device.identifier);
exit (1);
}
// Wait until buffer is ready
if (!SUCCESS (unicap_wait_buffer (handle, &returned_buffer))) {
fprintf (stderr, "Failed to wait for buffer on device: %s\n",
device.identifier);
exit (1);
}
// Convert colorspace
if (!SUCCESS (ucil_convert_buffer (&dest_buffer, &src_buffer))) {
// TODO: This fails sometimes for unknown reasons,
// just skip the frame for now
fprintf (stderr, "Failed to convert video buffer\n");
}
// Create ZMQ message
zmq::message_t msg (dest_format.buffer_size + (2 * sizeof (uint32_t)));
unsigned char *data = (unsigned char *)msg.data();
// Image width in pixels
zmq::put_uint32 (data, (uint32_t)dest_format.size.width);
data += sizeof (uint32_t);
// Image height in pixels
zmq::put_uint32 (data, (uint32_t)dest_format.size.height);
data += sizeof (uint32_t);
// RGB24 image data
memcpy (data, dest_buffer.data, dest_format.buffer_size);
// Send message
api->send (e_id, msg);
}
return 0;
}
static void *ucil_theora_worker_thread( ucil_theora_input_file_object_t *vobj )
{
unicap_data_buffer_t new_frame_buffer;
struct timeval ltime;
int eos = 0;
unicap_copy_format( &new_frame_buffer.format, &vobj->format );
new_frame_buffer.type = UNICAP_BUFFER_TYPE_SYSTEM;
new_frame_buffer.buffer_size = new_frame_buffer.format.buffer_size;
new_frame_buffer.data = malloc( new_frame_buffer.format.buffer_size );
gettimeofday( <ime, NULL );
while( !vobj->quit_capture_thread )
{
struct timespec abs_timeout;
struct timeval ctime;
GList *entry;
ogg_page og;
ogg_packet op;
size_t bytes;
int buffer_ready = 0;
if( !eos && ( ogg_stream_packetout( &vobj->os, &op ) > 0 ) )
{
yuv_buffer yuv;
theora_decode_packetin( &vobj->th, &op );
theora_decode_YUVout( &vobj->th, &yuv );
copy_yuv( new_frame_buffer.data, &yuv, &vobj->ti );
buffer_ready = 1;
}
else if( !eos )
{
bytes = buffer_data( vobj->f, &vobj->oy );
if( !bytes )
{
TRACE( "End of stream\n" );
eos = 1;
}
while( ogg_sync_pageout( &vobj->oy, &og ) > 0 )
{
ogg_stream_pagein( &vobj->os, &og );
}
continue;
}
else
{
buffer_ready = 1;
}
gettimeofday( &ctime, NULL );
abs_timeout.tv_sec = ctime.tv_sec + 1;
abs_timeout.tv_nsec = ctime.tv_usec * 1000;
if( sem_timedwait( &vobj->sema, &abs_timeout ) )
{
TRACE( "SEM_WAIT FAILED\n" );
continue;
}
if( buffer_ready && vobj->event_callback )
{
vobj->event_callback( vobj->event_unicap_handle, UNICAP_EVENT_NEW_FRAME, &new_frame_buffer );
TRACE( "New frame\n" );
}
unicap_data_buffer_t *data_buffer = g_queue_pop_head( vobj->in_queue );
if( data_buffer )
{
unicap_copy_format( &data_buffer->format, &vobj->format );
memcpy( data_buffer->data, new_frame_buffer.data, vobj->format.buffer_size );
g_queue_push_tail( vobj->out_queue, data_buffer );
}
sem_post( &vobj->sema );
if( buffer_ready )
{
gettimeofday( &ctime, NULL );
if( ctime.tv_usec < ltime.tv_usec )
{
ctime.tv_usec += 1000000;
ctime.tv_sec -= 1;
}
ctime.tv_usec -= ltime.tv_usec;
ctime.tv_sec -= ltime.tv_sec;
if( ( ctime.tv_sec == 0 ) &&
( ctime.tv_usec < vobj->frame_intervall ) )
{
usleep( vobj->frame_intervall - ctime.tv_usec );
}
gettimeofday( <ime, NULL );
}
}
free( new_frame_buffer.data );
return NULL;
}
static unicap_status_t theoracpi_get_format( ucil_theora_input_file_object_t *vobj, unicap_format_t *format )
{
unicap_copy_format( format, &vobj->format );
return STATUS_SUCCESS;
}
unicap_status_t dcam_dma_wait_buffer( dcam_handle_t dcamhandle )
{
struct video1394_wait vwait;
unicap_queue_t *entry;
int i = 0;
int ready_buffer;
vwait.channel = dcamhandle->channel_allocated;
i = vwait.buffer = ( dcamhandle->current_dma_capture_buffer + 1 ) % DCAM_NUM_DMA_BUFFERS;
if( ioctl( dcamhandle->dma_fd, VIDEO1394_IOC_LISTEN_WAIT_BUFFER, &vwait ) != 0 )
{
TRACE( "VIDEO1394_LISTEN_WAIT_BUFFER ioctl failed\n" );
TRACE( "channel: %d, buffer: %d\n", vwait.channel, vwait.buffer );
TRACE( "error: %s\n", strerror( errno ) );
// increase the buffer counter to wait for next buffer on the next try
dcamhandle->current_dma_capture_buffer = ( dcamhandle->current_dma_capture_buffer + 1 ) % DCAM_NUM_DMA_BUFFERS;
return STATUS_FAILURE;
}
ready_buffer = ( vwait.buffer + i ) % DCAM_NUM_DMA_BUFFERS;
entry = ucutil_get_front_queue( &dcamhandle->input_queue );
if( entry )
{
unicap_data_buffer_t *data_buffer;
data_buffer = entry->data;
memcpy( &data_buffer->fill_time, &vwait.filltime, sizeof( struct timeval ) );
if( data_buffer->type == UNICAP_BUFFER_TYPE_SYSTEM )
{
data_buffer->data = dcamhandle->dma_buffer + i * dcamhandle->buffer_size;
}
else
{
memcpy( data_buffer->data,
dcamhandle->dma_buffer + i * dcamhandle->dma_vmmap_frame_size,
dcamhandle->buffer_size );
}
data_buffer->buffer_size = dcamhandle->buffer_size;
ucutil_insert_back_queue( &dcamhandle->output_queue, entry );
data_buffer = 0;
}
{
unicap_data_buffer_t tmpbuffer;
tmpbuffer.data = dcamhandle->dma_buffer + i * dcamhandle->buffer_size;
tmpbuffer.buffer_size = dcamhandle->buffer_size;
unicap_copy_format( &tmpbuffer.format,
&dcamhandle->v_format_array[dcamhandle->current_format_index] );
memcpy( &tmpbuffer.fill_time, &vwait.filltime, sizeof( struct timeval ) );
new_frame_event( dcamhandle, &tmpbuffer );
}
for( ; i != ready_buffer; i = ( ( i + 1 ) % DCAM_NUM_DMA_BUFFERS ) )
{
entry = ucutil_get_front_queue( &dcamhandle->input_queue );
if( entry )
{
unicap_data_buffer_t *data_buffer;
data_buffer = entry->data;
memcpy( &data_buffer->fill_time, &vwait.filltime, sizeof( struct timeval ) );
if( data_buffer->type == UNICAP_BUFFER_TYPE_SYSTEM )
{
data_buffer->data = dcamhandle->dma_buffer + i * dcamhandle->buffer_size;
}
else
{
memcpy( data_buffer->data,
dcamhandle->dma_buffer + i * dcamhandle->dma_vmmap_frame_size,
dcamhandle->buffer_size );
}
data_buffer->buffer_size = dcamhandle->buffer_size;
ucutil_insert_back_queue( &dcamhandle->output_queue, entry );
data_buffer = 0;
}
{
unicap_data_buffer_t tmpbuffer;
tmpbuffer.data = dcamhandle->dma_buffer + i * dcamhandle->buffer_size;
tmpbuffer.buffer_size = dcamhandle->buffer_size;
unicap_copy_format( &tmpbuffer.format,
&dcamhandle->v_format_array[dcamhandle->current_format_index] );
new_frame_event( dcamhandle, &tmpbuffer );
}
vwait.buffer = i;
if( ioctl( dcamhandle->dma_fd, VIDEO1394_IOC_LISTEN_QUEUE_BUFFER, &vwait ) < 0 )
{
TRACE( "VIDEO1394_LISTEN_QUEUE_BUFFER ioctl failed\n" );
return STATUS_FAILURE;
}
}
vwait.buffer = ready_buffer;
if( ioctl( dcamhandle->dma_fd, VIDEO1394_IOC_LISTEN_QUEUE_BUFFER, &vwait ) < 0 )
{
TRACE( "VIDEO1394_LISTEN_QUEUE_BUFFER ioctl failed\n" );
return STATUS_FAILURE;
}
dcamhandle->current_dma_capture_buffer = ready_buffer;
return STATUS_SUCCESS;
}