Patch from Gabriel Hartmann for his GSoC UVC project. Coding style updates by myself. Thanks!

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42688 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/media/media-add-ons/usb_webcam/CamDevice.cpp

@@ -565,8 +565,15 @@ CamDevice::DataPumpThread()
 	}
 #ifdef SUPPORT_ISO
 	else if (SupportsIsochronous()) {
-		int numPacketDescriptors = 20;
+		int numPacketDescriptors = 16;
 		usb_iso_packet_descriptor packetDescriptors[numPacketDescriptors];
+		
+		// Initialize packetDescriptor request lengths
+		for (int i = 0; i<numPacketDescriptors; i++)
+			packetDescriptors[i].request_length = 256;	
+
+		int fullPackets = 0;
+		int totalPackets = 0;
 		while (fTransferEnabled) {
 			ssize_t len = -1;
 			BAutolock lock(fLocker);
@@ -575,7 +582,8 @@ CamDevice::DataPumpThread()
 			if (!fIsoIn)
 				break;
 #ifndef DEBUG_DISCARD_INPUT
-			len = fIsoIn->IsochronousTransfer(fBuffer, fBufferLen, packetDescriptors, numPacketDescriptors);
+			len = fIsoIn->IsochronousTransfer(fBuffer, fBufferLen, packetDescriptors,
+				numPacketDescriptors);
 #endif
 
 			//PRINT((CH ": got %d bytes" CT, len));
@@ -594,8 +602,16 @@ CamDevice::DataPumpThread()
 
 #ifndef DEBUG_DISCARD_DATA
 			if (fDataInput) {
-				fDataInput->Write(fBuffer, len);
+				int fBufferIndex = 0;
-				// else drop
+				for (int i = 0; i < numPacketDescriptors; i++) {
+					int actual_length = ((usb_iso_packet_descriptor)
+						packetDescriptors[i]).actual_length;
+					if (actual_length > 0) {
+						fDataInput->Write(&fBuffer[fBufferIndex],
+							actual_length);
+					}
+					fBufferIndex += actual_length;
+				}				
 			}
 #endif
 			//snooze(2000);

src/add-ons/media/media-add-ons/usb_webcam/Jamfile

@@ -35,7 +35,7 @@ addonSources =
 	QuickCamDevice.cpp
 	SonixCamDevice.cpp
 	NW80xCamDevice.cpp
-#	UVCCamDevice.cpp
+#	UVCCamDevice.cpp UVCDeframer.cpp
 ;
 
 ## colorspace transforms sources

src/add-ons/media/media-add-ons/usb_webcam/addons/uvc/UVCCamDevice.h

@@ -1,4 +1,5 @@
 /*
+ * Copyright 2011, Gabriel Hartmann, gabriel.hartmann@gmail.com.
  * Copyright 2011, Jérôme Duval, korli@users.berlios.de.
  * Copyright 2009, Ithamar Adema, <ithamar.adema@team-embedded.nl>.
  * Distributed under the terms of the MIT License.
@@ -24,6 +25,15 @@ public:
 									uint32 &height);
 	virtual status_t			AcceptVideoFrame(uint32 &width,
 									uint32 &height);
+	virtual void				AddParameters(BParameterGroup *group,
+									int32 &index);
+	virtual status_t			GetParameterValue(int32 id,
+									bigtime_t *last_change, void *value,
+									size_t *size);
+	virtual status_t			SetParameterValue(int32 id, bigtime_t when,
+									const void *value, size_t size);
+	virtual status_t			FillFrameBuffer(BBuffer *buffer,
+									bigtime_t *stamp = NULL);
 
 private:
 			void				_ParseVideoControl(
@@ -35,14 +45,52 @@ private:
 			status_t			_ProbeCommitFormat();
 			status_t			_SelectBestAlternate();
 			status_t			_SelectIdleAlternate();
+			void 				_DecodeColor(unsigned char *dst,
+									unsigned char *src, int32 width,
+									int32 height);
+
+			float				_AddParameter(BParameterGroup* group,
+									BParameterGroup** subgroup, int32 index,
+									uint16 wValue, const char* name);
+			int 				_AddAutoParameter(BParameterGroup* subgroup,
+									int32 index, uint16 wValue);
 				
 			usbvc_interface_header_descriptor *fHeaderDescriptor;
 			
 			const BUSBEndpoint*	fInterruptIn;
 			uint32				fControlIndex;
+			uint16				fControlRequestIndex;
 			uint32				fStreamingIndex;
+			uint32				fUncompressedFormatIndex;
+			uint32				fUncompressedFrameIndex;
+			uint32				fMJPEGFormatIndex;
+			uint32				fMJPEGFrameIndex;
 			uint32				fMaxVideoFrameSize;
 			uint32				fMaxPayloadTransferSize;
+			
+			BList				fUncompressedFrames;
+			BList				fMJPEGFrames;
+			
+			float				fBrightness;
+			float				fContrast;
+			float				fHue;
+			float				fSaturation;
+			float				fSharpness;
+			float				fGamma;
+			float				fWBTemp;
+			float				fWBComponent;
+			float				fBacklightCompensation;
+			float				fGain;
+			
+			bool				fBinaryBacklightCompensation;
+			
+			int					fWBTempAuto;
+			int					fWBCompAuto;
+			int					fHueAuto;
+			int					fBacklightCompensationBinary;
+			int					fPowerlineFrequency;
+			
+			
 };
 
 

src/add-ons/media/media-add-ons/usb_webcam/addons/uvc/UVCDeframer.cpp

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2011, Gabriel Hartmann, gabriel.hartmann@gmail.com.
+ * Distributed under the terms of the MIT License.
+ */
+
+
+#include "UVCDeframer.h"
+
+#include "CamDebug.h"
+#include "CamDevice.h"
+
+#include <Autolock.h>
+
+
+#define MAX_TAG_LEN CAMDEFRAMER_MAX_TAG_LEN
+#define MAXFRAMEBUF CAMDEFRAMER_MAX_QUEUED_FRAMES
+
+
+UVCDeframer::UVCDeframer(CamDevice* device)
+	: CamDeframer(device),
+	fFrameCount(0),
+	fID(0)
+{
+}
+
+
+UVCDeframer::~UVCDeframer()
+{
+}
+
+
+ssize_t
+UVCDeframer::Write(const void* buffer, size_t size)
+{
+	const uint8* buf = (const uint8*)buffer;
+	int payloadSize = size - buf[0]; // total length - header length
+	
+	// This packet is just a header
+	if (size == buf[0])
+		return 0;
+	
+	// Allocate frame
+	if (!fCurrentFrame) {
+		BAutolock l(fLocker);
+		if (fFrames.CountItems() < MAXFRAMEBUF)
+			fCurrentFrame = AllocFrame();
+		else {
+			printf("Dropped %ld bytes. Too many queued frames.)\n", size);
+			return size;
+		}
+	}
+	
+	// Write payload to buffer
+	fInputBuffer.Write(&buf[buf[0]], payloadSize);
+	
+	// If end of frame add frame to list of frames
+	if ((buf[1] & 2) || (buf[1] & 1) != fID) {
+		fID = buf[1] & 1;
+		fFrameCount++;
+		buf = (uint8*)fInputBuffer.Buffer();
+		fCurrentFrame->Write(buf, fInputBuffer.BufferLength());
+		fFrames.AddItem(fCurrentFrame);
+		release_sem(fFrameSem);
+		fCurrentFrame = NULL;
+	}
+
+	return size;
+}
+
+
+void
+UVCDeframer::_PrintBuffer(const void* buffer, size_t size)
+{
+	uint8* b = (uint8*)buffer;
+	for (size_t i = 0; i < size; i++)
+		printf("0x%x\t", b[i]);
+	printf("\n");
+}
+

src/add-ons/media/media-add-ons/usb_webcam/addons/uvc/UVCDeframer.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2011, Gabriel Hartmann, gabriel.hartmann@gmail.com.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _UVC_DEFRAMER_H
+#define _UVC_DEFRAMER_H
+
+
+#include "CamDeframer.h"
+
+#include <USB3.h>
+
+
+class UVCDeframer : public CamDeframer {
+public:
+								UVCDeframer(CamDevice *device);
+	virtual 					~UVCDeframer();
+					// BPositionIO interface
+					// write from usb transfers
+	virtual ssize_t				Write(const void *buffer, size_t size);
+
+private:
+	void						_PrintBuffer(const void* buffer, size_t size);
+
+	int32						fFrameCount;
+	int32						fID;
+	BMallocIO					fInputBuffer;
+};
+
+#endif /* _UVC_DEFRAMER_H */
+

src/bin/listusb.cpp

@@ -52,7 +52,7 @@ ClassName(int classNumber) {
 		case 0xE0:
 			return "Wireless controller";
 		case 0xEF:
-			return "Miscelaneous";
+			return "Miscellaneous";
 		case 0xFE:
 			return "Application specific";
 		case 0xFF: