static int
icvSetFrameRateCAM_DC1394( CvCaptureCAM_DC1394 * capture, double value ){
unsigned int fps=15;
if(capture->format == FORMAT_SCALABLE_IMAGE_SIZE)
return 0; /* format 7 has no fixed framerates */
if (value==-1){
fps=icvGetBestFrameRate( capture, capture->format, capture->mode );
}
else if (value==1.875)
fps=FRAMERATE_1_875;
else if (value==3.75)
fps=FRAMERATE_3_75;
else if (value==7.5)
fps=FRAMERATE_7_5;
else if (value==15)
fps=FRAMERATE_15;
else if (value==30)
fps=FRAMERATE_30;
else if (value==60)
fps=FRAMERATE_60;
#if NUM_FRAMERATES > 6
else if (value==120)
fps=FRAMERATE_120;
#endif
#if NUM_FRAMERATES > 7
else if (value==240)
fps=FRAMERATE_240;
#endif
dc1394_set_video_framerate(capture->handle, capture->camera->node,fps);
dc1394_get_video_framerate(capture->handle, capture->camera->node,
(unsigned int *) &capture->camera->frame_rate);
return fps==(unsigned int) capture->camera->frame_rate;
}
/*****************************************************************************
* Open:
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys;
es_format_t fmt;
int i;
int i_width;
int i_height;
int result = 0;
if( strncmp(p_demux->psz_access, "dc1394", 6) != 0 )
return VLC_EGENERIC;
/* Set up p_demux */
p_demux->pf_demux = Demux;
p_demux->pf_control = Control;
p_demux->info.i_update = 0;
p_demux->info.i_title = 0;
p_demux->info.i_seekpoint = 0;
p_demux->p_sys = p_sys = calloc( 1, sizeof( demux_sys_t ) );
if( !p_sys )
return VLC_ENOMEM;
memset( &fmt, 0, sizeof( es_format_t ) );
/* DEFAULTS */
p_sys->frame_size = MODE_640x480_YUV422;
p_sys->width = 640;
p_sys->height = 480;
p_sys->frame_rate = FRAMERATE_30;
p_sys->brightness = 200;
p_sys->focus = 0;
p_sys->dma_capture = DMA_ON; /* defaults to VIDEO1394 capture mode */
p_sys->fd_audio = -1;
p_sys->fd_video = NULL;
p_sys->camera_nodes = NULL;
p_sys->selected_camera = 0;
p_sys->dma_device = NULL;
p_sys->selected_uid = 0;
/* PROCESS INPUT OPTIONS */
if( process_options(p_demux) != VLC_SUCCESS )
{
msg_Err( p_demux, "Bad MRL, please check the option line "
"(MRL was: %s)",
p_demux->psz_path );
free( p_sys );
p_demux->p_sys = NULL;
return VLC_EGENERIC;
}
msg_Dbg( p_demux, "Selected camera %d", p_sys->selected_camera );
msg_Dbg( p_demux, "Selected uid 0x%llx", p_sys->selected_uid );
ScanCameras( p_sys, p_demux );
if( !p_sys->camera_nodes )
{
msg_Err( p_demux, "No camera found !!" );
free( p_sys );
p_demux->p_sys = NULL;
return VLC_EGENERIC;
}
if( p_sys->selected_uid )
{
int found = 0;
for( i=0; i < p_sys->num_cameras; i++ )
{
if( p_sys->camera_nodes[i].uid == p_sys->selected_uid )
{
p_sys->selected_camera = i;
found++;
break;
}
}
if( !found )
{
msg_Err( p_demux, "Can't find camera with uid : 0x%llx.",
p_sys->selected_uid );
Close( p_this );
return VLC_EGENERIC;
}
}
else if( p_sys->selected_camera >= p_sys->num_cameras )
{
msg_Err( p_demux, "there are not this many cameras. (%d/%d)",
p_sys->selected_camera, p_sys->num_cameras );
Close( p_this );
return VLC_EGENERIC;
}
p_sys->fd_video = dc1394_create_handle(
p_sys->camera_nodes[p_sys->selected_camera].port );
if( (int)p_sys->fd_video < 0 )
{
msg_Err( p_demux, "Can't init dc1394 handle" );
Close( p_this );
return VLC_EGENERIC;
}
/* get camera info */
result = dc1394_get_camera_info( p_sys->fd_video,
p_sys->camera_nodes[p_sys->selected_camera].node,
&p_sys->camera_info );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux ,"unable to get camera info" );
Close( p_this );
return VLC_EGENERIC;
}
dc1394_print_camera_info( &p_sys->camera_info );
result = dc1394_get_camera_misc_info( p_sys->fd_video,
p_sys->camera_nodes[p_sys->selected_camera].node,
&p_sys->misc_info );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "unable to get camera misc info" );
Close( p_this );
return VLC_EGENERIC;
}
/* init camera and set some video options */
result = dc1394_init_camera( p_sys->camera_info.handle,
p_sys->camera_info.id );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "unable to get init dc1394 camera" );
Close( p_this );
return VLC_EGENERIC;
}
if( p_sys->focus )
{
result = dc1394_set_focus( p_sys->camera_info.handle,
p_sys->camera_nodes[p_sys->selected_camera].node,
p_sys->focus );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "unable to set initial focus to %u",
p_sys->focus );
}
msg_Dbg( p_demux, "Initial focus set to %u", p_sys->focus );
}
result = dc1394_set_brightness( p_sys->camera_info.handle,
p_sys->camera_nodes[p_sys->selected_camera].node,
p_sys->brightness );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "unable to set init brightness to %d",
p_sys->brightness);
Close( p_this );
return VLC_EGENERIC;
}
result = dc1394_set_video_framerate( p_sys->camera_info.handle,
p_sys->camera_nodes[p_sys->selected_camera].node,
p_sys->frame_rate );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "unable to set framerate to %d",
p_sys->frame_rate );
Close( p_this );
return VLC_EGENERIC;
}
p_sys->misc_info.framerate = p_sys->frame_rate;
result = dc1394_set_video_format( p_sys->camera_info.handle,
p_sys->camera_nodes[p_sys->selected_camera].node,
FORMAT_VGA_NONCOMPRESSED );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "unable to set video format to VGA_NONCOMPRESSED" );
Close( p_this );
return VLC_EGENERIC;
}
p_sys->misc_info.format = FORMAT_VGA_NONCOMPRESSED;
result = dc1394_set_video_mode( p_sys->camera_info.handle,
p_sys->camera_nodes[p_sys->selected_camera].node,
p_sys->frame_size );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "unable to set video mode" );
Close( p_this );
return VLC_EGENERIC;
}
p_sys->misc_info.mode = p_sys->frame_size;
/* reprobe everything */
result = dc1394_get_camera_info( p_sys->camera_info.handle,
p_sys->camera_info.id,
&p_sys->camera_info );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "Could not get camera basic information!" );
Close( p_this );
return VLC_EGENERIC;
}
result = dc1394_get_camera_misc_info( p_sys->camera_info.handle,
p_sys->camera_info.id,
&p_sys->misc_info );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "Could not get camera misc information!" );
Close( p_this );
return VLC_EGENERIC;
}
/* set iso_channel */
result = dc1394_set_iso_channel_and_speed( p_sys->camera_info.handle,
p_sys->camera_info.id,
p_sys->selected_camera,
SPEED_400 );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "Could not set iso channel!" );
Close( p_this );
return VLC_EGENERIC;
}
msg_Dbg( p_demux, "Using ISO channel %d", p_sys->misc_info.iso_channel );
p_sys->misc_info.iso_channel = p_sys->selected_camera;
/* and setup capture */
if( p_sys->dma_capture )
{
result = dc1394_dma_setup_capture( p_sys->camera_info.handle,
p_sys->camera_info.id,
p_sys->misc_info.iso_channel,
p_sys->misc_info.format,
p_sys->misc_info.mode,
SPEED_400,
p_sys->misc_info.framerate,
10, 0,
p_sys->dma_device,
&p_sys->camera );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux ,"unable to setup camera" );
Close( p_this );
return VLC_EGENERIC;
}
}
else
{
result = dc1394_setup_capture( p_sys->camera_info.handle,
p_sys->camera_info.id,
p_sys->misc_info.iso_channel,
p_sys->misc_info.format,
p_sys->misc_info.mode,
SPEED_400,
p_sys->misc_info.framerate,
&p_sys->camera );
if( result != DC1394_SUCCESS)
{
msg_Err( p_demux ,"unable to setup camera" );
Close( p_this );
return VLC_EGENERIC;
}
}
/* TODO - UYV444 chroma converter is missing, when it will be available
* fourcc will become variable (and not just a fixed value for UYVY)
*/
i_width = p_sys->camera.frame_width;
i_height = p_sys->camera.frame_height;
if( picture_Setup( &p_sys->pic, VLC_CODEC_UYVY,
i_width, i_height,
i_width * VOUT_ASPECT_FACTOR / i_height ) )
{
msg_Err( p_demux ,"unknown chroma" );
Close( p_this );
return VLC_EGENERIC;
}
es_format_Init( &fmt, VIDEO_ES, VLC_CODEC_UYVY );
fmt.video.i_width = i_width;
fmt.video.i_height = i_height;
msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
(char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
p_sys->p_es_video = es_out_Add( p_demux->out, &fmt );
if( p_sys->audio_device )
{
OpenAudioDev( p_demux );
if( p_sys->fd_audio >= 0 )
{
es_format_t fmt;
es_format_Init( &fmt, AUDIO_ES, VLC_CODEC_S16L ); /* FIXME: hmm, ?? */
fmt.audio.i_channels = p_sys->channels ? p_sys->channels : 1;
fmt.audio.i_rate = p_sys->i_sample_rate;
fmt.audio.i_bitspersample = 16;
fmt.audio.i_blockalign = fmt.audio.i_channels *
fmt.audio.i_bitspersample / 8;
fmt.i_bitrate = fmt.audio.i_channels * fmt.audio.i_rate *
fmt.audio.i_bitspersample;
msg_Dbg( p_demux, "new audio es %d channels %dHz",
fmt.audio.i_channels, fmt.audio.i_rate );
p_sys->p_es_audio = es_out_Add( p_demux->out, &fmt );
}
}
/* have the camera start sending us data */
result = dc1394_start_iso_transmission( p_sys->camera_info.handle,
p_sys->camera_info.id );
if( result != DC1394_SUCCESS )
{
msg_Err( p_demux, "unable to start camera iso transmission" );
if( p_sys->dma_capture )
{
dc1394_dma_release_camera( p_sys->fd_video, &p_sys->camera );
}
else
{
dc1394_release_camera( p_sys->fd_video, &p_sys->camera );
}
Close( p_this );
return VLC_EGENERIC;
}
p_sys->misc_info.is_iso_on = DC1394_TRUE;
return VLC_SUCCESS;
}