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webrtc/webrtc/video_engine/vie_base_impl.cc
elham@webrtc.org 9c735c4e25 Updated WebRTC version to 3.45 
R=wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2669004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5009 4adac7df-926f-26a2-2b94-8c16560cd09d
2013-10-21 16:34:50 +00:00

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/*
* Copyright (c) 2012 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.
*/
#include "webrtc/video_engine/vie_base_impl.h"
#include <sstream>
#include <string>
#include "webrtc/engine_configurations.h"
#include "webrtc/modules/rtp_rtcp/interface/rtp_rtcp.h"
#include "webrtc/modules/video_coding/main/interface/video_coding.h"
#include "webrtc/modules/video_processing/main/interface/video_processing.h"
#include "webrtc/modules/video_render/include/video_render.h"
#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
#include "webrtc/system_wrappers/interface/trace.h"
#include "webrtc/video_engine/include/vie_errors.h"
#include "webrtc/video_engine/vie_capturer.h"
#include "webrtc/video_engine/vie_channel.h"
#include "webrtc/video_engine/vie_channel_manager.h"
#include "webrtc/video_engine/vie_defines.h"
#include "webrtc/video_engine/vie_encoder.h"
#include "webrtc/video_engine/vie_impl.h"
#include "webrtc/video_engine/vie_input_manager.h"
#include "webrtc/video_engine/vie_shared_data.h"
namespace webrtc {
ViEBase* ViEBase::GetInterface(VideoEngine* video_engine) {
if (!video_engine) {
return NULL;
}
VideoEngineImpl* vie_impl = static_cast<VideoEngineImpl*>(video_engine);
ViEBaseImpl* vie_base_impl = vie_impl;
(*vie_base_impl)++; // Increase ref count.
return vie_base_impl;
}
int ViEBaseImpl::Release() {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo, shared_data_.instance_id(),
"ViEBase::Release()");
(*this)--; // Decrease ref count.
int32_t ref_count = GetCount();
if (ref_count < 0) {
WEBRTC_TRACE(kTraceWarning, kTraceVideo, shared_data_.instance_id(),
"ViEBase release too many times");
shared_data_.SetLastError(kViEAPIDoesNotExist);
return -1;
}
WEBRTC_TRACE(kTraceInfo, kTraceVideo, shared_data_.instance_id(),
"ViEBase reference count: %d", ref_count);
return ref_count;
}
ViEBaseImpl::ViEBaseImpl(const Config& config)
: shared_data_(config) {
WEBRTC_TRACE(kTraceMemory, kTraceVideo, shared_data_.instance_id(),
"ViEBaseImpl::ViEBaseImpl() Ctor");
}
ViEBaseImpl::~ViEBaseImpl() {
WEBRTC_TRACE(kTraceMemory, kTraceVideo, shared_data_.instance_id(),
"ViEBaseImpl::ViEBaseImpl() Dtor");
}
int ViEBaseImpl::Init() {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo, shared_data_.instance_id(),
"Init");
return 0;
}
int ViEBaseImpl::SetVoiceEngine(VoiceEngine* voice_engine) {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s", __FUNCTION__);
if (shared_data_.channel_manager()->SetVoiceEngine(voice_engine) != 0) {
shared_data_.SetLastError(kViEBaseVoEFailure);
return -1;
}
return 0;
}
int ViEBaseImpl::RegisterCpuOveruseObserver(int video_channel,
CpuOveruseObserver* observer) {
ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
ViEChannel* vie_channel = cs.Channel(video_channel);
if (!vie_channel) {
WEBRTC_TRACE(kTraceError,
kTraceVideo,
ViEId(shared_data_.instance_id()),
"%s: channel %d doesn't exist",
__FUNCTION__,
video_channel);
shared_data_.SetLastError(kViEBaseInvalidChannelId);
return -1;
}
ViEEncoder* vie_encoder = cs.Encoder(video_channel);
assert(vie_encoder);
ViEInputManagerScoped is(*(shared_data_.input_manager()));
ViEFrameProviderBase* provider = is.FrameProvider(vie_encoder);
if (provider) {
ViECapturer* capturer = is.Capture(provider->Id());
assert(capturer);
capturer->RegisterCpuOveruseObserver(observer);
}
shared_data_.overuse_observers()->insert(
std::pair<int, CpuOveruseObserver*>(video_channel, observer));
return 0;
}
int ViEBaseImpl::CreateChannel(int& video_channel) { // NOLINT
WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s", __FUNCTION__);
if (shared_data_.channel_manager()->CreateChannel(&video_channel) == -1) {
WEBRTC_TRACE(kTraceError, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s: Could not create channel", __FUNCTION__);
video_channel = -1;
shared_data_.SetLastError(kViEBaseChannelCreationFailed);
return -1;
}
WEBRTC_TRACE(kTraceInfo, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s: channel created: %d", __FUNCTION__, video_channel);
return 0;
}
int ViEBaseImpl::CreateChannel(int& video_channel, // NOLINT
int original_channel) {
return CreateChannel(video_channel, original_channel, true);
}
int ViEBaseImpl::CreateReceiveChannel(int& video_channel, // NOLINT
int original_channel) {
return CreateChannel(video_channel, original_channel, false);
}
int ViEBaseImpl::DeleteChannel(const int video_channel) {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s(%d)", __FUNCTION__, video_channel);
{
ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
ViEChannel* vie_channel = cs.Channel(video_channel);
if (!vie_channel) {
WEBRTC_TRACE(kTraceError, kTraceVideo,
ViEId(shared_data_.instance_id()),
"%s: channel %d doesn't exist", __FUNCTION__, video_channel);
shared_data_.SetLastError(kViEBaseInvalidChannelId);
return -1;
}
// Deregister the ViEEncoder if no other channel is using it.
ViEEncoder* vie_encoder = cs.Encoder(video_channel);
if (cs.ChannelUsingViEEncoder(video_channel) == false) {
ViEInputManagerScoped is(*(shared_data_.input_manager()));
ViEFrameProviderBase* provider = is.FrameProvider(vie_encoder);
if (provider) {
provider->DeregisterFrameCallback(vie_encoder);
}
}
}
if (shared_data_.channel_manager()->DeleteChannel(video_channel) == -1) {
WEBRTC_TRACE(kTraceError, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s: Could not delete channel %d", __FUNCTION__,
video_channel);
shared_data_.SetLastError(kViEBaseUnknownError);
return -1;
}
WEBRTC_TRACE(kTraceInfo, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s: channel deleted: %d", __FUNCTION__, video_channel);
return 0;
}
int ViEBaseImpl::ConnectAudioChannel(const int video_channel,
const int audio_channel) {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s(%d)", __FUNCTION__, video_channel);
ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
if (!cs.Channel(video_channel)) {
WEBRTC_TRACE(kTraceError, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s: channel %d doesn't exist", __FUNCTION__, video_channel);
shared_data_.SetLastError(kViEBaseInvalidChannelId);
return -1;
}
if (shared_data_.channel_manager()->ConnectVoiceChannel(video_channel,
audio_channel) != 0) {
shared_data_.SetLastError(kViEBaseVoEFailure);
return -1;
}
return 0;
}
int ViEBaseImpl::DisconnectAudioChannel(const int video_channel) {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s(%d)", __FUNCTION__, video_channel);
ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
if (!cs.Channel(video_channel)) {
WEBRTC_TRACE(kTraceError, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s: channel %d doesn't exist", __FUNCTION__, video_channel);
shared_data_.SetLastError(kViEBaseInvalidChannelId);
return -1;
}
if (shared_data_.channel_manager()->DisconnectVoiceChannel(
video_channel) != 0) {
shared_data_.SetLastError(kViEBaseVoEFailure);
return -1;
}
return 0;
}
int ViEBaseImpl::StartSend(const int video_channel) {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s(channel: %d)", __FUNCTION__, video_channel);
ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
ViEChannel* vie_channel = cs.Channel(video_channel);
if (!vie_channel) {
WEBRTC_TRACE(kTraceError, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s: Channel %d does not exist", __FUNCTION__, video_channel);
shared_data_.SetLastError(kViEBaseInvalidChannelId);
return -1;
}
ViEEncoder* vie_encoder = cs.Encoder(video_channel);
assert(vie_encoder != NULL);
if (vie_encoder->Owner() != video_channel) {
WEBRTC_TRACE(kTraceError, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"Can't start ssend on a receive only channel.");
shared_data_.SetLastError(kViEBaseReceiveOnlyChannel);
return -1;
}
// Pause and trigger a key frame.
vie_encoder->Pause();
int32_t error = vie_channel->StartSend();
if (error != 0) {
vie_encoder->Restart();
WEBRTC_TRACE(kTraceError, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s: Could not start sending on channel %d", __FUNCTION__,
video_channel);
if (error == kViEBaseAlreadySending) {
shared_data_.SetLastError(kViEBaseAlreadySending);
}
shared_data_.SetLastError(kViEBaseUnknownError);
return -1;
}
vie_encoder->SendKeyFrame();
vie_encoder->Restart();
return 0;
}
int ViEBaseImpl::StopSend(const int video_channel) {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s(channel: %d)", __FUNCTION__, video_channel);
ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
ViEChannel* vie_channel = cs.Channel(video_channel);
if (!vie_channel) {
WEBRTC_TRACE(kTraceError, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s: Channel %d does not exist", __FUNCTION__, video_channel);
shared_data_.SetLastError(kViEBaseInvalidChannelId);
return -1;
}
int32_t error = vie_channel->StopSend();
if (error != 0) {
WEBRTC_TRACE(kTraceError, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s: Could not stop sending on channel %d", __FUNCTION__,
video_channel);
if (error == kViEBaseNotSending) {
shared_data_.SetLastError(kViEBaseNotSending);
} else {
shared_data_.SetLastError(kViEBaseUnknownError);
}
return -1;
}
return 0;
}
int ViEBaseImpl::StartReceive(const int video_channel) {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s(channel: %d)", __FUNCTION__, video_channel);
ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
ViEChannel* vie_channel = cs.Channel(video_channel);
if (!vie_channel) {
WEBRTC_TRACE(kTraceError, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s: Channel %d does not exist", __FUNCTION__, video_channel);
shared_data_.SetLastError(kViEBaseInvalidChannelId);
return -1;
}
if (vie_channel->StartReceive() != 0) {
shared_data_.SetLastError(kViEBaseUnknownError);
return -1;
}
return 0;
}
int ViEBaseImpl::StopReceive(const int video_channel) {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s(channel: %d)", __FUNCTION__, video_channel);
ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
ViEChannel* vie_channel = cs.Channel(video_channel);
if (!vie_channel) {
WEBRTC_TRACE(kTraceError, kTraceVideo,
ViEId(shared_data_.instance_id(), video_channel),
"%s: Channel %d does not exist", __FUNCTION__, video_channel);
shared_data_.SetLastError(kViEBaseInvalidChannelId);
return -1;
}
if (vie_channel->StopReceive() != 0) {
shared_data_.SetLastError(kViEBaseUnknownError);
return -1;
}
return 0;
}
int ViEBaseImpl::GetVersion(char version[1024]) {
WEBRTC_TRACE(kTraceApiCall, kTraceVideo, ViEId(shared_data_.instance_id()),
"GetVersion(version=?)");
assert(kViEVersionMaxMessageSize == 1024);
if (!version) {
shared_data_.SetLastError(kViEBaseInvalidArgument);
return -1;
}
// Add WebRTC Version.
std::stringstream version_stream;
version_stream << "VideoEngine 3.45.0" << std::endl;
// Add build info.
version_stream << "Build: svn:" << WEBRTC_SVNREVISION << " " << BUILDINFO
<< std::endl;
#ifdef WEBRTC_EXTERNAL_TRANSPORT
version_stream << "External transport build" << std::endl;
#endif
int version_length = version_stream.tellp();
assert(version_length < 1024);
memcpy(version, version_stream.str().c_str(), version_length);
version[version_length] = '\0';
WEBRTC_TRACE(kTraceStateInfo, kTraceVideo,
ViEId(shared_data_.instance_id()), "GetVersion() => %s",
version);
return 0;
}
int ViEBaseImpl::LastError() {
return shared_data_.LastErrorInternal();
}
int ViEBaseImpl::CreateChannel(int& video_channel, // NOLINT
int original_channel, bool sender) {
ViEChannelManagerScoped cs(*(shared_data_.channel_manager()));
if (!cs.Channel(original_channel)) {
WEBRTC_TRACE(kTraceError, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s - original_channel does not exist.", __FUNCTION__,
shared_data_.instance_id());
shared_data_.SetLastError(kViEBaseInvalidChannelId);
return -1;
}
if (shared_data_.channel_manager()->CreateChannel(&video_channel,
original_channel,
sender) == -1) {
WEBRTC_TRACE(kTraceError, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s: Could not create channel", __FUNCTION__);
video_channel = -1;
shared_data_.SetLastError(kViEBaseChannelCreationFailed);
return -1;
}
WEBRTC_TRACE(kTraceInfo, kTraceVideo, ViEId(shared_data_.instance_id()),
"%s: channel created: %d", __FUNCTION__, video_channel);
return 0;
}
} // namespace webrtc
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