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https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=5201
Can u give us a "how-to" page with step by step instructions and a picture about leds connecting into the pi, please? (i already have the leds and the pi, but i dont know the connections)plfort wrote:Raspbmc RC3 with boblight : http://www.youtube.com/watch?v=5FRV4z_VOVs
It only works with static background light
I'd imagine:Stasik0 wrote:As far as I see we need an OpenMAX component to plug into the video pipline of omxplayer. I have tried to summarize my thoughts here: http://stackoverflow.com/questions/1394 ... e-to-start .
Who is willing to help?
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video_decode->video_schedule->video_splitter->video_render
|->resize
Read the OpenMAX IL 1.0 spec here:Stasik0 wrote:can i also read the data out of a OMX.broadcom.video_splitter port? Or even out of a render port? Using a separate thread?
I mean as far as I understood, I can not define own OMX components without broadcom's help? Is it correct?
Could you help me a bit on getting into reading ports? Can I read them from ARM memory space? Or are they locked in their own memory area?
Otherwise could you at Broadcom define an additional component which can accept callback functions (is may be actually needed since a sync information may be needed)?
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if(demuxer_bytes == 0)
omx_buffer->nFlags |= OMX_BUFFERFLAG_ENDOFFRAME;
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if(demuxer_bytes == 0){
omx_buffer->nFlags |= OMX_BUFFERFLAG_ENDOFFRAME;
omx_buffer->hMarkTargetComponent = m_omx_render.GetComponent();
omx_buffer->pMarkData = m_omx_render.GetComponent();
}
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typedef struct OMX_MARKTYPE
{
OMX_HANDLETYPE hMarkTargetComponent;
OMX_PTR pMarkData;
} OMX_MARKTYPE;
OMX_MARKTYPE mark;
mark.hMarkTargetComponent = m_omx_render.GetComponent();
mark.pMarkData = m_omx_render.GetComponent();
omx_err = m_omx_sched.SendCommand(OMX_CommandMarkBuffer, m_omx_sched.GetInputPort(), &mark);
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componentName = "OMX.broadcom.image_write";
if(!m_omx_write.Initialize(componentName, OMX_IndexParamVideoInit))
return false;
//setting uri of the image output
const char* filename = "file:///dev/shm/omxplayer_fb.bmp";
size_t uri_size = strlen(filename) + 1;
size_t param_size = sizeof(OMX_PARAM_CONTENTURITYPE) + uri_size - 1;
write_param = reinterpret_cast<OMX_PARAM_CONTENTURITYPE *>(new char[param_size]);
OMX_INIT_STRUCTURE(*write_param);
write_param->nSize = param_size;
memcpy(write_param->contentURI, filename, uri_size);
omx_err = m_omx_write.SetParameter(OMX_IndexParamContentURI, &write_param);
if(omx_err != OMX_ErrorNone)
{
CLog::Log(LOGERROR, "%s::%s - error OMX_IndexParamContentURI omx_err(0x%08x)\n", CLASSNAME, __func__, omx_err);
}
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OMX_VIDEO_PARAM_PORTFORMATTYPE video_param;
OMX_INIT_STRUCTURE(video_param);
video_param.nPortIndex = m_omx_split.GetOutputPort();
video_param.eCompressionFormat = OMX_VIDEO_CodingUnused;
video_param.eColorFormat = OMX_COLOR_Format16bitBGR565;
omx_err = m_omx_split.SetParameter(OMX_IndexParamVideoPortFormat, &video_param);
if(omx_err != OMX_ErrorNone)
{
CLog::Log(LOGERROR, "%s::%s - error OMX_IndexParamVideoPortFormat omx_err(0x%08x)\n", CLASSNAME, __func__, omx_err);
return false;
}
I believe you can set:Stasik0 wrote:it seems to be YUV 420 planar data. Can I make the GPU to convert it to RGB values? I can not connect video_split to image_encode or video_encode directly becoming ports not compatible errors.
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m_omx_split.DisablePort(m_omx_split.GetInputPort(), false);
OMX_PARAM_PORTDEFINITIONTYPE port_image;
OMX_INIT_STRUCTURE(port_image);
port_image.nPortIndex = m_omx_split.GetOutputPort();
omx_err = m_omx_split.GetParameter(OMX_IndexParamPortDefinition, &port_image);
port_image.format.video.eColorFormat = OMX_COLOR_Format16bitRGB565;
omx_err = m_omx_split.SetParameter(OMX_IndexParamPortDefinition, &port_image);
m_omx_split.EnablePort(m_omx_split.GetInputPort(), false);
omx_err = m_omx_split.SetStateForComponent(OMX_StateExecuting);
if (omx_err != OMX_ErrorNone)
{
CLog::Log(LOGERROR, "COMXVideo::Open error m_omx_split.SetStateForComponent\n");
return false;
}