webrtc/video_engine/main/source/vie_input_manager.cc

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/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
/*
* vie_input_manager.cc
*/
#include "vie_input_manager.h"
#include "vie_defines.h"
#include "common_types.h"
#include "critical_section_wrapper.h"
#include "video_capture.h"
#include "video_capture.h"
#include "video_coding.h"
#include "video_coding_defines.h"
#include "rw_lock_wrapper.h"
#include "trace.h"
#include "vie_capturer.h"
#include "vie_file_player.h"
#include "vie_errors.h"
#include <cassert>
namespace webrtc {
//=============================================================================
// ViEInputManager
//=============================================================================
// ----------------------------------------------------------------------------
// Constructor
// ----------------------------------------------------------------------------
ViEInputManager::ViEInputManager(const int engineId)
: _engineId(engineId),
_mapCritsect(*CriticalSectionWrapper::CreateCriticalSection()),
_ptrCaptureDeviceInfo(NULL), _vieFrameProviderMap(),
_freeCaptureDeviceId(), _moduleProcessThread(NULL)
{
WEBRTC_TRACE(webrtc::kTraceMemory, webrtc::kTraceVideo, ViEId(_engineId), "%s",
__FUNCTION__);
for (int idx = 0; idx < kViEMaxCaptureDevices; idx++)
{
_freeCaptureDeviceId[idx] = true;
}
#ifdef WEBRTC_VIDEO_EXTERNAL_CAPTURE_AND_RENDER
_ptrCaptureDeviceInfo=NULL;
#else
_ptrCaptureDeviceInfo = VideoCaptureModule::CreateDeviceInfo(
ViEModuleId(_engineId));
#endif
for (int idx = 0; idx < kViEMaxFilePlayers; idx++)
{
_freeFileId[idx] = true;
}
}
// ----------------------------------------------------------------------------
// Destructor
// ----------------------------------------------------------------------------
ViEInputManager::~ViEInputManager()
{
WEBRTC_TRACE(webrtc::kTraceMemory, webrtc::kTraceVideo, ViEId(_engineId), "%s",
__FUNCTION__);
while (_vieFrameProviderMap.Size() != 0)
{
MapItem* item = _vieFrameProviderMap.First();
assert(item);
ViEFrameProviderBase* frameProvider = static_cast<ViEFrameProviderBase*>
(item->GetItem());
_vieFrameProviderMap.Erase(item);
delete frameProvider;
}
delete &_mapCritsect;
if (_ptrCaptureDeviceInfo)
{
VideoCaptureModule::DestroyDeviceInfo( _ptrCaptureDeviceInfo);
_ptrCaptureDeviceInfo = NULL;
}
}
// ----------------------------------------------------------------------------
// SetModuleProcessThread
// Initialize the thread context used by none time critical tasks in capture modules.
// ----------------------------------------------------------------------------
void ViEInputManager::SetModuleProcessThread(ProcessThread& moduleProcessThread)
{
assert(!_moduleProcessThread);
_moduleProcessThread = &moduleProcessThread;
}
// ----------------------------------------------------------------------------
// NumberOfCaptureDevices
//
// Returns the number of available capture devices
// ----------------------------------------------------------------------------
// Capture device information
int ViEInputManager::NumberOfCaptureDevices()
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId), "%s",
__FUNCTION__);
assert(_ptrCaptureDeviceInfo);
return _ptrCaptureDeviceInfo->NumberOfDevices();
}
// ----------------------------------------------------------------------------
// GetDeviceName
// ----------------------------------------------------------------------------
int ViEInputManager::GetDeviceName(WebRtc_UWord32 deviceNumber,
WebRtc_UWord8* deviceNameUTF8,
WebRtc_UWord32 deviceNameLength,
WebRtc_UWord8* deviceUniqueIdUTF8,
WebRtc_UWord32 deviceUniqueIdUTF8Length)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s(deviceNumber: %d)", __FUNCTION__, deviceNumber);
assert(_ptrCaptureDeviceInfo);
return _ptrCaptureDeviceInfo->GetDeviceName(deviceNumber, deviceNameUTF8,
deviceNameLength,
deviceUniqueIdUTF8,
deviceUniqueIdUTF8Length);
}
// ----------------------------------------------------------------------------
// NumberOfCaptureCapabilities
//
// Returns the number of capture capabilities for the specified capture device
// ----------------------------------------------------------------------------
int ViEInputManager::NumberOfCaptureCapabilities(
const WebRtc_UWord8* deviceUniqueIdUTF8)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId), "%s",
__FUNCTION__);
assert(_ptrCaptureDeviceInfo);
return _ptrCaptureDeviceInfo->NumberOfCapabilities(deviceUniqueIdUTF8);
}
// ----------------------------------------------------------------------------
// GetCaptureCapability
// ----------------------------------------------------------------------------
int ViEInputManager::GetCaptureCapability(const WebRtc_UWord8* deviceUniqueIdUTF8,
const WebRtc_UWord32 deviceCapabilityNumber,
CaptureCapability& capability)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s(deviceUniqueIdUTF8: %s, deviceCapabilityNumber: %d)",
__FUNCTION__, deviceUniqueIdUTF8, deviceCapabilityNumber);
assert(_ptrCaptureDeviceInfo);
VideoCaptureCapability moduleCapability;
int result = _ptrCaptureDeviceInfo->GetCapability(deviceUniqueIdUTF8,
deviceCapabilityNumber,
moduleCapability);
// Copy from module type to public type
capability.expectedCaptureDelay = moduleCapability.expectedCaptureDelay;
capability.height = moduleCapability.height;
capability.width = moduleCapability.width;
capability.interlaced = moduleCapability.interlaced;
capability.rawType = moduleCapability.rawType;
capability.codecType = moduleCapability.codecType;
capability.maxFPS = moduleCapability.maxFPS;
return result;
}
int ViEInputManager::GetOrientation(const WebRtc_UWord8* deviceUniqueIdUTF8,
RotateCapturedFrame &orientation)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s(deviceUniqueIdUTF8: %s,)", __FUNCTION__, deviceUniqueIdUTF8);
assert(_ptrCaptureDeviceInfo);
VideoCaptureRotation moduleOrientation;
int result = _ptrCaptureDeviceInfo->GetOrientation(deviceUniqueIdUTF8,
moduleOrientation);
// Copy from module type to public type
switch (moduleOrientation)
{
case kCameraRotate0:
orientation = RotateCapturedFrame_0;
break;
case kCameraRotate90:
orientation = RotateCapturedFrame_90;
break;
case kCameraRotate180:
orientation = RotateCapturedFrame_180;
break;
case kCameraRotate270:
orientation = RotateCapturedFrame_270;
break;
default:
assert(!"Unknown enum");
}
return result;
}
//------------------------------------------------------------------------------
//
// DisplayCaptureSettingsDialogBox
// Show OS specific Capture settings.
// Return 0 on success.
//------------------------------------------------------------------------------
int ViEInputManager::DisplayCaptureSettingsDialogBox(
const WebRtc_UWord8* deviceUniqueIdUTF8,
const WebRtc_UWord8* dialogTitleUTF8,
void* parentWindow,
WebRtc_UWord32 positionX,
WebRtc_UWord32 positionY)
{
assert(_ptrCaptureDeviceInfo);
return _ptrCaptureDeviceInfo->DisplayCaptureSettingsDialogBox(
deviceUniqueIdUTF8,
dialogTitleUTF8,
parentWindow,
positionX,
positionY);
}
// ----------------------------------------------------------------------------
// CreateCaptureDevice
//
// Creates a capture module for the specified capture device and assigns
// a capture device id for the device
// ----------------------------------------------------------------------------
int ViEInputManager::CreateCaptureDevice(const WebRtc_UWord8* deviceUniqueIdUTF8,
const WebRtc_UWord32 deviceUniqueIdUTF8Length,
int& captureId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s(deviceUniqueId: %s)", __FUNCTION__, deviceUniqueIdUTF8);
#ifdef WEBRTC_VIDEO_EXTERNAL_CAPTURE_AND_RENDER
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s(deviceUniqueId: Only external capture modules can be used.) "
, __FUNCTION__);
return -1;
#endif
CriticalSectionScoped cs(_mapCritsect);
// Make sure the device is not already allocated
for (MapItem* item = _vieFrameProviderMap.First(); item != NULL;
item = _vieFrameProviderMap.Next(item))
{
if (item->GetId() >= kViECaptureIdBase &&
item->GetId() <= kViECaptureIdMax) // Make sure it is a capture device
{
ViECapturer* vieCapture = static_cast<ViECapturer*> (item->GetItem());
assert(vieCapture);
if (strncmp((char*) vieCapture->CurrentDeviceName(),
(char*) deviceUniqueIdUTF8,
strlen((char*) vieCapture->CurrentDeviceName())) == 0)
{
return kViECaptureDeviceAlreadyAllocated;
}
}
}
// Make sure the device name is valid
bool foundDevice = false;
for (WebRtc_UWord32 deviceIndex = 0;
deviceIndex < _ptrCaptureDeviceInfo->NumberOfDevices(); ++deviceIndex)
{
if (deviceUniqueIdUTF8Length >kVideoCaptureUniqueNameLength)
{
// user's string length is longer than the max
return -1;
}
WebRtc_UWord8 foundName[kVideoCaptureDeviceNameLength] = "";
WebRtc_UWord8 foundUniqueName[kVideoCaptureUniqueNameLength] = "";
_ptrCaptureDeviceInfo->GetDeviceName(deviceIndex, foundName,
kVideoCaptureDeviceNameLength,
foundUniqueName,
kVideoCaptureUniqueNameLength);
if (strncmp((char*) deviceUniqueIdUTF8, (char*) foundUniqueName,
strlen((char*) deviceUniqueIdUTF8)) == 0)
{
WEBRTC_TRACE(webrtc::kTraceDebug, webrtc::kTraceVideo, ViEId(_engineId),
"%s:%d Capture device was found by unique ID: %s. Returning",
__FUNCTION__, __LINE__, deviceUniqueIdUTF8);
foundDevice = true;
break;
}
}
if (!foundDevice)
{
WEBRTC_TRACE(webrtc::kTraceDebug, webrtc::kTraceVideo, ViEId(_engineId),
"%s:%d Capture device NOT found by unique ID: %s. Returning",
__FUNCTION__, __LINE__, deviceUniqueIdUTF8);
return kViECaptureDeviceDoesnNotExist;
}
int newcaptureId = 0;
if (GetFreeCaptureId(newcaptureId) == false)
{
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Maximum supported number of capture devices already in use",
__FUNCTION__);
return kViECaptureDeviceMaxNoDevicesAllocated;
}
ViECapturer* vieCapture =ViECapturer::CreateViECapture(newcaptureId,
_engineId,
deviceUniqueIdUTF8,
deviceUniqueIdUTF8Length,
*_moduleProcessThread);
if (vieCapture == NULL)
{
ReturnCaptureId(newcaptureId);
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Could not create capture module for %s", __FUNCTION__,
deviceUniqueIdUTF8);
return kViECaptureDeviceUnknownError;
}
if (_vieFrameProviderMap.Insert(newcaptureId, vieCapture) != 0)
{
ReturnCaptureId(newcaptureId);
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Could not insert capture module for %s", __FUNCTION__,
deviceUniqueIdUTF8);
return kViECaptureDeviceUnknownError;
}
captureId = newcaptureId;
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s(deviceUniqueId: %s, captureId: %d)", __FUNCTION__,
deviceUniqueIdUTF8, captureId);
return 0;
}
int ViEInputManager::CreateCaptureDevice(VideoCaptureModule& captureModule,
int& captureId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId), "%s", __FUNCTION__);
CriticalSectionScoped cs(_mapCritsect);
int newcaptureId = 0;
if (GetFreeCaptureId(newcaptureId) == false)
{
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Maximum supported number of capture devices already in use",
__FUNCTION__);
return kViECaptureDeviceMaxNoDevicesAllocated;
}
ViECapturer* vieCapture = ViECapturer::CreateViECapture(newcaptureId,
_engineId,
captureModule,
*_moduleProcessThread);
if (vieCapture == NULL)
{
ReturnCaptureId(newcaptureId);
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Could attach capture module.", __FUNCTION__);
return kViECaptureDeviceUnknownError;
}
if (_vieFrameProviderMap.Insert(newcaptureId, vieCapture) != 0)
{
ReturnCaptureId(newcaptureId);
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Could not insert capture module", __FUNCTION__);
return kViECaptureDeviceUnknownError;
}
captureId = newcaptureId;
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s, captureId: %d", __FUNCTION__, captureId);
return 0;
}
// ----------------------------------------------------------------------------
// DestroyCaptureDevice
//
// Releases the capture device with specified id
// ----------------------------------------------------------------------------
int ViEInputManager::DestroyCaptureDevice(const int captureId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s(captureId: %d)", __FUNCTION__, captureId);
ViECapturer* vieCapture = NULL;
{
// We need exclusive access to the object to delete it
ViEManagerWriteScoped wl(*this); // Take this write lock first since the read lock is taken before _mapCritsect
CriticalSectionScoped cs(_mapCritsect);
vieCapture = ViECapturePtr(captureId);
if (vieCapture == NULL)
{
// No capture deveice with that id
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s(captureId: %d) - No such capture device id",
__FUNCTION__, captureId);
return -1;
}
WebRtc_UWord32 numCallbacks = vieCapture->NumberOfRegistersFrameCallbacks();
if (numCallbacks > 0)
{
WEBRTC_TRACE(webrtc::kTraceWarning, webrtc::kTraceVideo, ViEId(_engineId),
"%s(captureId: %d) - %u registered callbacks when destroying capture device",
__FUNCTION__, captureId, numCallbacks);
}
_vieFrameProviderMap.Erase(captureId);
ReturnCaptureId(captureId);
} // Leave cs before deleting the capture object. This is because deleting the object might cause deletions of renderers so we prefer to not have a lock at that time.
delete vieCapture;
return 0;
}
// ----------------------------------------------------------------------------
// CreateExternalCaptureDevice
//
// Creates a capture module to be used with external captureing.
// ----------------------------------------------------------------------------
int ViEInputManager::CreateExternalCaptureDevice(ViEExternalCapture*& externalCapture,
int& captureId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId), "%s",
__FUNCTION__);
#ifdef WEBRTC_VIDEO_EXTERNAL_CAPTURE_AND_RENDER
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s(deviceUniqueId: Only external capture modules can be used.) "
, __FUNCTION__);
return -1;
#endif
CriticalSectionScoped cs(_mapCritsect);
int newcaptureId = 0;
if (GetFreeCaptureId(newcaptureId) == false)
{
WEBRTC_TRACE( webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Maximum supported number of capture devices already in use",
__FUNCTION__);
return kViECaptureDeviceMaxNoDevicesAllocated;
}
ViECapturer* vieCapture = ViECapturer::CreateViECapture(newcaptureId,
_engineId, NULL, 0,
*_moduleProcessThread);
if (vieCapture == NULL)
{
ReturnCaptureId(newcaptureId);
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Could not create capture module for external capture.",
__FUNCTION__);
return kViECaptureDeviceUnknownError;
}
if (_vieFrameProviderMap.Insert(newcaptureId, vieCapture) != 0)
{
ReturnCaptureId(newcaptureId);
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Could not insert capture module for external capture.",
__FUNCTION__);
return kViECaptureDeviceUnknownError;
}
captureId = newcaptureId;
externalCapture = vieCapture;
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s, captureId: %d)", __FUNCTION__, captureId);
return 0;
}
int ViEInputManager::CreateFilePlayer(const WebRtc_Word8* fileNameUTF8,
const bool loop,
const webrtc::FileFormats fileFormat,
VoiceEngine* vePtr, int& fileId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s(deviceUniqueId: %s)", __FUNCTION__, fileNameUTF8);
CriticalSectionScoped cs(_mapCritsect);
int newFileId = 0;
if (GetFreeFileId(newFileId) == false)
{
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Maximum supported number of file players already in use",
__FUNCTION__);
return kViEFileMaxNoOfFilesOpened;
}
ViEFilePlayer* vieFilePlayer = ViEFilePlayer::CreateViEFilePlayer(
newFileId, _engineId, fileNameUTF8,
loop, fileFormat, *this, vePtr);
if (vieFilePlayer == NULL)
{
ReturnFileId(newFileId);
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Could not open file %s for playback", __FUNCTION__,
fileNameUTF8);
return kViEFileUnknownError;
}
if (_vieFrameProviderMap.Insert(newFileId, vieFilePlayer) != 0)
{
ReturnCaptureId(newFileId);
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s: Could not insert file player for %s", __FUNCTION__,
fileNameUTF8);
delete vieFilePlayer;
return kViEFileUnknownError;
}
fileId = newFileId;
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s(filename: %s, fileId: %d)", __FUNCTION__, fileNameUTF8,
newFileId);
return 0;
}
int ViEInputManager::DestroyFilePlayer(int fileId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s(fileId: %d)", __FUNCTION__, fileId);
ViEFilePlayer* vieFilePlayer = NULL;
{
// We need exclusive access to the object to delete it
ViEManagerWriteScoped wl(*this); // Take this write lock first since the read lock is taken before _mapCritsect
CriticalSectionScoped cs(_mapCritsect);
vieFilePlayer = ViEFilePlayerPtr(fileId);
if (vieFilePlayer == NULL)
{
// No capture deveice with that id
WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, ViEId(_engineId),
"%s(fileId: %d) - No such file player",
__FUNCTION__, fileId);
return -1;
}
int numCallbacks =
vieFilePlayer->NumberOfRegistersFrameCallbacks();
if (numCallbacks > 0)
{
WEBRTC_TRACE( webrtc::kTraceWarning, webrtc::kTraceVideo, ViEId(_engineId),
"%s(fileId: %d) - %u registered callbacks when destroying file player",
__FUNCTION__, fileId, numCallbacks);
}
_vieFrameProviderMap.Erase(fileId);
ReturnFileId(fileId);
} // Leave cs before deleting the file object. This is because deleting the object might cause deletions of renderers so we prefer to not have a lock at that time.
delete vieFilePlayer;
return 0;
}
// ============================================================================
// Private methods
// ============================================================================
// ----------------------------------------------------------------------------
// GetFreeCaptureId
//
// Gets and allocates a free capture device id. Assumed protected by caller
// ----------------------------------------------------------------------------
// Private, asummed protected
bool ViEInputManager::GetFreeCaptureId(int& freecaptureId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId), "%s",
__FUNCTION__);
for (int id = 0; id < kViEMaxCaptureDevices; id++)
{
if (_freeCaptureDeviceId[id])
{
// We found a free capture device id
_freeCaptureDeviceId[id] = false;
freecaptureId = id + kViECaptureIdBase;
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s: new id: %d", __FUNCTION__, freecaptureId);
return true;
}
}
return false;
}
// ----------------------------------------------------------------------------
// ReturnCaptureId
//
// Frees a capture id assigned in GetFreeCaptureId
// ----------------------------------------------------------------------------
void ViEInputManager::ReturnCaptureId(int captureId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId), "%s(%d)",
__FUNCTION__, captureId);
CriticalSectionScoped cs(_mapCritsect);
if (captureId >= kViECaptureIdBase &&
captureId < kViEMaxCaptureDevices + kViECaptureIdBase)
{
_freeCaptureDeviceId[captureId - kViECaptureIdBase] = true;
}
return;
}
// ----------------------------------------------------------------------------
// GetFreeFileId
//
// Gets and allocates a free file id. Assumed protected by caller
// ----------------------------------------------------------------------------
// Private, asumed protected
bool ViEInputManager::GetFreeFileId(int& freeFileId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId), "%s",
__FUNCTION__);
for (int id = 0; id < kViEMaxFilePlayers; id++)
{
if (_freeFileId[id])
{
// We found a free capture device id
_freeFileId[id] = false;
freeFileId = id + kViEFileIdBase;
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId),
"%s: new id: %d", __FUNCTION__, freeFileId);
return true;
}
}
return false;
}
// ----------------------------------------------------------------------------
// ReturnFileId
//
// Frees a file id assigned in GetFreeFileId
// ----------------------------------------------------------------------------
void ViEInputManager::ReturnFileId(int fileId)
{
WEBRTC_TRACE(webrtc::kTraceInfo, webrtc::kTraceVideo, ViEId(_engineId), "%s(%d)",
__FUNCTION__, fileId);
CriticalSectionScoped cs(_mapCritsect);
if (fileId >= kViEFileIdBase &&
fileId < kViEMaxFilePlayers + kViEFileIdBase)
{
_freeFileId[fileId - kViEFileIdBase] = true;
}
return;
}
// ============================================================================
// Methods used by ViECaptureScoped
// ----------------------------------------------------------------------------
// ViECapturePtr
//
// Gets the ViECapturer for the capture device id
// ----------------------------------------------------------------------------
ViECapturer* ViEInputManager::ViECapturePtr(int captureId) const
{
if (!(captureId >= kViECaptureIdBase &&
captureId <= kViECaptureIdBase + kViEMaxCaptureDevices))
return NULL;
CriticalSectionScoped cs(_mapCritsect);
MapItem* mapItem = _vieFrameProviderMap.Find(captureId);
if (mapItem == NULL)
{
// No ViEEncoder for this channel...
return NULL;
}
ViECapturer* vieCapture = static_cast<ViECapturer*> (mapItem->GetItem());
return vieCapture;
}
// ----------------------------------------------------------------------------
// ViEFrameProvider
//
// Gets the ViEFrameProvider for this capture observer.
// ----------------------------------------------------------------------------
ViEFrameProviderBase* ViEInputManager::ViEFrameProvider(
const ViEFrameCallback* captureObserver) const
{
assert(captureObserver);
CriticalSectionScoped cs(_mapCritsect);
for (MapItem* providerItem = _vieFrameProviderMap.First(); providerItem
!= NULL; providerItem = _vieFrameProviderMap.Next(providerItem))
{
ViEFrameProviderBase* vieFrameProvider = static_cast<ViEFrameProviderBase*>
(providerItem->GetItem());
assert(vieFrameProvider != NULL);
if (vieFrameProvider->IsFrameCallbackRegistered(captureObserver))
{
// We found it
return vieFrameProvider;
}
}
// No capture device set for this channel
return NULL;
}
// ----------------------------------------------------------------------------
// ViEFrameProvider
//
// Gets the ViEFrameProvider for this capture observer.
// ----------------------------------------------------------------------------
ViEFrameProviderBase* ViEInputManager::ViEFrameProvider(int providerId) const
{
CriticalSectionScoped cs(_mapCritsect);
MapItem* mapItem = _vieFrameProviderMap.Find(providerId);
if (mapItem == NULL)
{
return NULL;
}
ViEFrameProviderBase* vieFrameProvider = static_cast<ViEFrameProviderBase*>
(mapItem->GetItem());
return vieFrameProvider;
}
// ----------------------------------------------------------------------------
// GetViECaptures
//
// Gets the the entire map with GetViECaptures
// ----------------------------------------------------------------------------
void ViEInputManager::GetViECaptures(MapWrapper& vieCaptureMap)
{
CriticalSectionScoped cs(_mapCritsect);
if (_vieFrameProviderMap.Size() == 0)
{
// No ViECaptures
return;
}
// Add all items to the map
for (MapItem* item = _vieFrameProviderMap.First();
item != NULL;
item = _vieFrameProviderMap.Next(item))
{
vieCaptureMap.Insert(item->GetId(), item->GetItem());
}
return;
}
// ----------------------------------------------------------------------------
// ViEFilePlayerPtr
//
// Gets the ViEFilePlayer for this fileId
// ----------------------------------------------------------------------------
ViEFilePlayer* ViEInputManager::ViEFilePlayerPtr(int fileId) const
{
if (fileId < kViEFileIdBase || fileId > kViEFileIdMax)
return NULL;
CriticalSectionScoped cs(_mapCritsect);
MapItem* mapItem = _vieFrameProviderMap.Find(fileId);
if (mapItem == NULL)
{
// No ViEFilePlayer for this fileId...
return NULL;
}
ViEFilePlayer* vieFilePlayer =
static_cast<ViEFilePlayer*> (mapItem->GetItem());
return vieFilePlayer;
}
// ----------------------------------------------------------------------------
// ViEInputManagerScoped
//
// Provides protected access to ViEInputManater
// ----------------------------------------------------------------------------
ViEInputManagerScoped::ViEInputManagerScoped(
const ViEInputManager& vieInputManager)
: ViEManagerScopedBase(vieInputManager)
{
}
ViECapturer* ViEInputManagerScoped::Capture(int captureId) const
{
return static_cast<const ViEInputManager*>
(_vieManager)->ViECapturePtr(captureId);
}
ViEFrameProviderBase* ViEInputManagerScoped::FrameProvider(
const ViEFrameCallback* captureObserver) const
{
return static_cast<const ViEInputManager*>
(_vieManager)->ViEFrameProvider(captureObserver);
}
ViEFrameProviderBase* ViEInputManagerScoped::FrameProvider(int providerId) const
{
return static_cast<const ViEInputManager*>
(_vieManager)->ViEFrameProvider( providerId);
}
ViEFilePlayer* ViEInputManagerScoped::FilePlayer(int fileId) const
{
return static_cast<const ViEInputManager*>
(_vieManager)->ViEFilePlayerPtr(fileId);
}
} // namespace webrtc