b29b9c8e49
This also deletes unused features of the video_capturer interface, the classes VideoCaptureFeedBack, VideoCaptureEncodeInterface and related methods, and the module id which used to be passed as an argument to the VideoCaptureDataCallback. In theory the module id could have been used to let a single VideoCaptureDataCallback serve several capturers, and demultiplex on the id, but in practice, it was unused. With this change, it is required to use a separate VideoSinkInterface for each capturer. BUG=webrtc:6789 Review-Url: https://codereview.webrtc.org/2534553002 Cr-Commit-Position: refs/heads/master@{#15540}
360 lines
14 KiB
C++
360 lines
14 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <assert.h>
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#include <stdlib.h>
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#include "webrtc/modules/video_capture/device_info_impl.h"
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#include "webrtc/modules/video_capture/video_capture_config.h"
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#include "webrtc/system_wrappers/include/logging.h"
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#ifndef abs
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#define abs(a) (a>=0?a:-a)
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#endif
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namespace webrtc
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{
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namespace videocapturemodule
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{
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DeviceInfoImpl::DeviceInfoImpl()
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: _apiLock(*RWLockWrapper::CreateRWLock()), _lastUsedDeviceName(NULL),
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_lastUsedDeviceNameLength(0)
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{
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}
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DeviceInfoImpl::~DeviceInfoImpl(void)
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{
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_apiLock.AcquireLockExclusive();
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free(_lastUsedDeviceName);
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_apiLock.ReleaseLockExclusive();
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delete &_apiLock;
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}
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int32_t DeviceInfoImpl::NumberOfCapabilities(
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const char* deviceUniqueIdUTF8)
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{
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if (!deviceUniqueIdUTF8)
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return -1;
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_apiLock.AcquireLockShared();
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if (_lastUsedDeviceNameLength == strlen((char*) deviceUniqueIdUTF8))
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{
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// Is it the same device that is asked for again.
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#if defined(WEBRTC_MAC) || defined(WEBRTC_LINUX)
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if(strncasecmp((char*)_lastUsedDeviceName,
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(char*) deviceUniqueIdUTF8,
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_lastUsedDeviceNameLength)==0)
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#else
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if (_strnicmp((char*) _lastUsedDeviceName,
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(char*) deviceUniqueIdUTF8,
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_lastUsedDeviceNameLength) == 0)
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#endif
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{
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//yes
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_apiLock.ReleaseLockShared();
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return static_cast<int32_t>(_captureCapabilities.size());
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}
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}
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// Need to get exclusive rights to create the new capability map.
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_apiLock.ReleaseLockShared();
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WriteLockScoped cs2(_apiLock);
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int32_t ret = CreateCapabilityMap(deviceUniqueIdUTF8);
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return ret;
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}
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int32_t DeviceInfoImpl::GetCapability(const char* deviceUniqueIdUTF8,
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const uint32_t deviceCapabilityNumber,
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VideoCaptureCapability& capability)
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{
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assert(deviceUniqueIdUTF8 != NULL);
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ReadLockScoped cs(_apiLock);
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if ((_lastUsedDeviceNameLength != strlen((char*) deviceUniqueIdUTF8))
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#if defined(WEBRTC_MAC) || defined(WEBRTC_LINUX)
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|| (strncasecmp((char*)_lastUsedDeviceName,
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(char*) deviceUniqueIdUTF8,
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_lastUsedDeviceNameLength)!=0))
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#else
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|| (_strnicmp((char*) _lastUsedDeviceName,
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(char*) deviceUniqueIdUTF8,
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_lastUsedDeviceNameLength) != 0))
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#endif
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{
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_apiLock.ReleaseLockShared();
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_apiLock.AcquireLockExclusive();
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if (-1 == CreateCapabilityMap(deviceUniqueIdUTF8))
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{
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_apiLock.ReleaseLockExclusive();
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_apiLock.AcquireLockShared();
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return -1;
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}
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_apiLock.ReleaseLockExclusive();
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_apiLock.AcquireLockShared();
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}
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// Make sure the number is valid
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if (deviceCapabilityNumber >= (unsigned int) _captureCapabilities.size())
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{
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LOG(LS_ERROR) << "Invalid deviceCapabilityNumber "
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<< deviceCapabilityNumber << ">= number of capabilities ("
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<< _captureCapabilities.size() << ").";
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return -1;
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}
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capability = _captureCapabilities[deviceCapabilityNumber];
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return 0;
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}
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int32_t DeviceInfoImpl::GetBestMatchedCapability(
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const char*deviceUniqueIdUTF8,
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const VideoCaptureCapability& requested,
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VideoCaptureCapability& resulting)
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{
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if (!deviceUniqueIdUTF8)
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return -1;
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ReadLockScoped cs(_apiLock);
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if ((_lastUsedDeviceNameLength != strlen((char*) deviceUniqueIdUTF8))
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#if defined(WEBRTC_MAC) || defined(WEBRTC_LINUX)
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|| (strncasecmp((char*)_lastUsedDeviceName,
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(char*) deviceUniqueIdUTF8,
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_lastUsedDeviceNameLength)!=0))
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#else
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|| (_strnicmp((char*) _lastUsedDeviceName,
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(char*) deviceUniqueIdUTF8,
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_lastUsedDeviceNameLength) != 0))
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#endif
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{
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_apiLock.ReleaseLockShared();
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_apiLock.AcquireLockExclusive();
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if (-1 == CreateCapabilityMap(deviceUniqueIdUTF8))
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{
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return -1;
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}
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_apiLock.ReleaseLockExclusive();
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_apiLock.AcquireLockShared();
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}
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int32_t bestformatIndex = -1;
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int32_t bestWidth = 0;
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int32_t bestHeight = 0;
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int32_t bestFrameRate = 0;
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RawVideoType bestRawType = kVideoUnknown;
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webrtc::VideoCodecType bestCodecType = webrtc::kVideoCodecUnknown;
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const int32_t numberOfCapabilies =
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static_cast<int32_t>(_captureCapabilities.size());
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for (int32_t tmp = 0; tmp < numberOfCapabilies; ++tmp) // Loop through all capabilities
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{
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VideoCaptureCapability& capability = _captureCapabilities[tmp];
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const int32_t diffWidth = capability.width - requested.width;
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const int32_t diffHeight = capability.height - requested.height;
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const int32_t diffFrameRate = capability.maxFPS - requested.maxFPS;
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const int32_t currentbestDiffWith = bestWidth - requested.width;
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const int32_t currentbestDiffHeight = bestHeight - requested.height;
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const int32_t currentbestDiffFrameRate = bestFrameRate - requested.maxFPS;
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if ((diffHeight >= 0 && diffHeight <= abs(currentbestDiffHeight)) // Height better or equalt that previouse.
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|| (currentbestDiffHeight < 0 && diffHeight >= currentbestDiffHeight))
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{
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if (diffHeight == currentbestDiffHeight) // Found best height. Care about the width)
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{
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if ((diffWidth >= 0 && diffWidth <= abs(currentbestDiffWith)) // Width better or equal
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|| (currentbestDiffWith < 0 && diffWidth >= currentbestDiffWith))
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{
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if (diffWidth == currentbestDiffWith && diffHeight
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== currentbestDiffHeight) // Same size as previously
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{
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//Also check the best frame rate if the diff is the same as previouse
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if (((diffFrameRate >= 0 &&
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diffFrameRate <= currentbestDiffFrameRate) // Frame rate to high but better match than previouse and we have not selected IUV
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||
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(currentbestDiffFrameRate < 0 &&
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diffFrameRate >= currentbestDiffFrameRate)) // Current frame rate is lower than requested. This is better.
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)
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{
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if ((currentbestDiffFrameRate == diffFrameRate) // Same frame rate as previous or frame rate allready good enough
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|| (currentbestDiffFrameRate >= 0))
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{
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if (bestRawType != requested.rawType
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&& requested.rawType != kVideoUnknown
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&& (capability.rawType == requested.rawType
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|| capability.rawType == kVideoI420
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|| capability.rawType == kVideoYUY2
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|| capability.rawType == kVideoYV12))
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{
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bestCodecType = capability.codecType;
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bestRawType = capability.rawType;
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bestformatIndex = tmp;
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}
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// If width height and frame rate is full filled we can use the camera for encoding if it is supported.
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if (capability.height == requested.height
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&& capability.width == requested.width
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&& capability.maxFPS >= requested.maxFPS)
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{
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if (capability.codecType == requested.codecType
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&& bestCodecType != requested.codecType)
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{
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bestCodecType = capability.codecType;
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bestformatIndex = tmp;
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}
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}
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}
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else // Better frame rate
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{
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if (requested.codecType == capability.codecType)
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{
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bestWidth = capability.width;
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bestHeight = capability.height;
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bestFrameRate = capability.maxFPS;
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bestCodecType = capability.codecType;
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bestRawType = capability.rawType;
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bestformatIndex = tmp;
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}
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}
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}
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}
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else // Better width than previously
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{
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if (requested.codecType == capability.codecType)
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{
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bestWidth = capability.width;
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bestHeight = capability.height;
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bestFrameRate = capability.maxFPS;
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bestCodecType = capability.codecType;
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bestRawType = capability.rawType;
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bestformatIndex = tmp;
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}
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}
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}// else width no good
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}
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else // Better height
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{
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if (requested.codecType == capability.codecType)
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{
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bestWidth = capability.width;
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bestHeight = capability.height;
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bestFrameRate = capability.maxFPS;
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bestCodecType = capability.codecType;
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bestRawType = capability.rawType;
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bestformatIndex = tmp;
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}
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}
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}// else height not good
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}//end for
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LOG(LS_VERBOSE) << "Best camera format: " << bestWidth << "x" << bestHeight
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<< "@" << bestFrameRate
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<< "fps, color format: " << bestRawType;
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// Copy the capability
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if (bestformatIndex < 0)
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return -1;
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resulting = _captureCapabilities[bestformatIndex];
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return bestformatIndex;
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}
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/* Returns the expected Capture delay*/
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int32_t DeviceInfoImpl::GetExpectedCaptureDelay(
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const DelayValues delayValues[],
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const uint32_t sizeOfDelayValues,
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const char* productId,
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const uint32_t width,
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const uint32_t height)
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{
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int32_t bestDelay = kDefaultCaptureDelay;
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for (uint32_t device = 0; device < sizeOfDelayValues; ++device)
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{
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if (delayValues[device].productId && strncmp((char*) productId,
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(char*) delayValues[device].productId,
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kVideoCaptureProductIdLength) == 0)
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{
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// We have found the camera
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int32_t bestWidth = 0;
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int32_t bestHeight = 0;
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//Loop through all tested sizes and find one that seems fitting
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for (uint32_t delayIndex = 0; delayIndex < NoOfDelayValues; ++delayIndex)
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{
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const DelayValue& currentValue = delayValues[device].delayValues[delayIndex];
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const int32_t diffWidth = currentValue.width - width;
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const int32_t diffHeight = currentValue.height - height;
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const int32_t currentbestDiffWith = bestWidth - width;
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const int32_t currentbestDiffHeight = bestHeight - height;
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if ((diffHeight >= 0 && diffHeight <= abs(currentbestDiffHeight)) // Height better or equal than previous.
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|| (currentbestDiffHeight < 0 && diffHeight >= currentbestDiffHeight))
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{
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if (diffHeight == currentbestDiffHeight) // Found best height. Care about the width)
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{
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if ((diffWidth >= 0 && diffWidth <= abs(currentbestDiffWith)) // Width better or equal
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|| (currentbestDiffWith < 0 && diffWidth >= currentbestDiffWith))
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{
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if (diffWidth == currentbestDiffWith && diffHeight
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== currentbestDiffHeight) // Same size as previous
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{
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}
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else // Better width than previously
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{
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bestWidth = currentValue.width;
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bestHeight = currentValue.height;
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bestDelay = currentValue.delay;
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}
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}// else width no good
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}
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else // Better height
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{
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bestWidth = currentValue.width;
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bestHeight = currentValue.height;
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bestDelay = currentValue.delay;
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}
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}// else height not good
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}//end for
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break;
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}
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}
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if (bestDelay > kMaxCaptureDelay)
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{
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LOG(LS_WARNING) << "Expected capture delay (" << bestDelay
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<< " ms) too high, using " << kMaxCaptureDelay
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<< " ms.";
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bestDelay = kMaxCaptureDelay;
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}
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return bestDelay;
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}
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//Default implementation. This should be overridden by Mobile implementations.
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int32_t DeviceInfoImpl::GetOrientation(const char* deviceUniqueIdUTF8,
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VideoRotation& orientation) {
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orientation = kVideoRotation_0;
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return -1;
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}
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} // namespace videocapturemodule
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} // namespace webrtc
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