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create capturing API for streaming/etc.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| namespace Capture | ||
| { | ||
| void LoadSettings(jsonxx::Object & o); | ||
| bool Open(RENDERER_SETTINGS & settings); | ||
| void CaptureFrame(); | ||
| void Close(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| #include "jsonxx.h" | ||
| #include "Renderer.h" | ||
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|
||
| namespace Capture | ||
| { | ||
| void LoadSettings(jsonxx::Object & o) | ||
| { | ||
| } | ||
| bool Open(RENDERER_SETTINGS & settings) | ||
| { | ||
| return true; | ||
| } | ||
| void CaptureFrame() | ||
| { | ||
| } | ||
| void Close() | ||
| { | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| #include <Processing.NDI.Lib.h> | ||
| #include <string> | ||
| #include "jsonxx.h" | ||
| #include "Renderer.h" | ||
|
|
||
| namespace Capture | ||
| { | ||
| std::string sNDIConnectionString; | ||
| float fNDIFrameRate = 60.0; | ||
| std::string sNDIIdentifier; | ||
| bool bNDIProgressive = true; | ||
| bool bNDIEnabled = true; | ||
| unsigned int * pBuffer[2] = { NULL, NULL }; | ||
| unsigned int nBufferIndex = 0; | ||
| NDIlib_video_frame_t pNDIFrame; | ||
| NDIlib_send_instance_t pNDI_send; | ||
|
|
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| void LoadSettings(jsonxx::Object & o) | ||
| { | ||
| if (o.has<jsonxx::Object>("ndi")) | ||
| { | ||
| if (o.get<jsonxx::Object>("ndi").has<jsonxx::Boolean>("enabled")) | ||
| bNDIEnabled = o.get<jsonxx::Object>("ndi").get<jsonxx::Boolean>("enabled"); | ||
| if (o.get<jsonxx::Object>("ndi").has<jsonxx::String>("connectionString")) | ||
| sNDIConnectionString = o.get<jsonxx::Object>("ndi").get<jsonxx::String>("connectionString"); | ||
| if (o.get<jsonxx::Object>("ndi").has<jsonxx::String>("identifier")) | ||
| sNDIIdentifier = o.get<jsonxx::Object>("ndi").get<jsonxx::String>("identifier"); | ||
| if (o.get<jsonxx::Object>("ndi").has<jsonxx::Number>("frameRate")) | ||
| fNDIFrameRate = o.get<jsonxx::Object>("ndi").get<jsonxx::Number>("frameRate"); | ||
| if (o.get<jsonxx::Object>("ndi").has<jsonxx::Boolean>("progressive")) | ||
| bNDIProgressive = o.get<jsonxx::Object>("ndi").get<jsonxx::Boolean>("progressive"); | ||
| } | ||
| } | ||
| bool Open(RENDERER_SETTINGS & settings) | ||
| { | ||
| if (bNDIEnabled) | ||
| { | ||
| if (!NDIlib_initialize()) | ||
| { | ||
| printf("[Capture] Cannot initialize NDI"); | ||
| return false; | ||
| } | ||
|
|
||
| NDIlib_send_create_t pNDICreateDesc; | ||
| sNDIIdentifier = "BONZOMATIC" + (sNDIIdentifier.length() ? (" - " + sNDIIdentifier) : ""); | ||
| pNDICreateDesc.p_ndi_name = sNDIIdentifier.c_str(); | ||
| pNDICreateDesc.p_groups = NULL; | ||
| pNDICreateDesc.clock_video = true; | ||
| pNDICreateDesc.clock_audio = false; | ||
|
|
||
| pNDI_send = NDIlib_send_create(&pNDICreateDesc); | ||
| if (!pNDI_send) | ||
| { | ||
| printf("[Capture] Cannot create NDI source"); | ||
| return false; | ||
| } | ||
|
|
||
| NDIlib_metadata_frame_t pNDIConnType; | ||
| pNDIConnType.length = sNDIConnectionString.length(); | ||
| pNDIConnType.timecode = NDIlib_send_timecode_synthesize; | ||
| pNDIConnType.p_data = (char*)sNDIConnectionString.c_str(); | ||
|
|
||
| NDIlib_send_add_connection_metadata(pNDI_send, &pNDIConnType); | ||
|
|
||
| pNDIFrame.xres = settings.nWidth; | ||
| pNDIFrame.yres = settings.nHeight; | ||
| pNDIFrame.FourCC = NDIlib_FourCC_type_BGRA; | ||
| pNDIFrame.frame_rate_N = fNDIFrameRate * 100; | ||
| pNDIFrame.frame_rate_D = 100; | ||
| pNDIFrame.picture_aspect_ratio = settings.nWidth / (float)settings.nHeight; | ||
| pNDIFrame.frame_format_type = bNDIProgressive ? NDIlib_frame_format_type_progressive : NDIlib_frame_format_type_interleaved; | ||
| pNDIFrame.timecode = NDIlib_send_timecode_synthesize; | ||
| pBuffer[0] = new unsigned int[settings.nWidth * settings.nHeight * 4]; | ||
| pBuffer[1] = new unsigned int[settings.nWidth * settings.nHeight * 4]; | ||
| pNDIFrame.p_data = NULL; | ||
| pNDIFrame.line_stride_in_bytes = settings.nWidth * 4; | ||
| } | ||
| return true; | ||
| } | ||
| void CaptureFrame() | ||
| { | ||
| if (pBuffer[0] && pBuffer[1]) | ||
| { | ||
| pNDIFrame.p_data = (unsigned char*)pBuffer[ nBufferIndex ]; | ||
| nBufferIndex = (nBufferIndex + 1) & 1; | ||
| if (Renderer::GrabFrame( pNDIFrame.p_data )) | ||
| { | ||
| unsigned int * p = (unsigned int *)pNDIFrame.p_data; | ||
| for(int i=0; i < pNDIFrame.xres * pNDIFrame.yres; i++) | ||
| p[i] = (p[i] & 0x00FF00) | ((p[i] >> 16) & 0xFF) | ((p[i] & 0xFF) << 16) | 0xFF000000; | ||
| NDIlib_send_send_video_async(pNDI_send, &pNDIFrame); | ||
| } | ||
| } | ||
| } | ||
| void Close() | ||
| { | ||
| if (pBuffer[0] && pBuffer[1]) | ||
| { | ||
| NDIlib_send_send_video_async(pNDI_send, NULL); // stop async thread | ||
|
|
||
| delete[] pBuffer[0]; | ||
| delete[] pBuffer[1]; | ||
| NDIlib_send_destroy(pNDI_send); | ||
| NDIlib_destroy(); | ||
| } | ||
| } | ||
| } |
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