#include <map>
#include <vector>
+#include "webrtc/base/thread_annotations.h"
#include "webrtc/call.h"
#include "webrtc/common.h"
#include "webrtc/config.h"
#include "webrtc/modules/rtp_rtcp/interface/rtp_header_parser.h"
+#include "webrtc/modules/video_coding/codecs/vp8/include/vp8.h"
#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
#include "webrtc/system_wrappers/interface/rw_lock_wrapper.h"
#include "webrtc/system_wrappers/interface/scoped_ptr.h"
-#include "webrtc/system_wrappers/interface/thread_annotations.h"
#include "webrtc/system_wrappers/interface/trace.h"
#include "webrtc/video/video_receive_stream.h"
#include "webrtc/video/video_send_stream.h"
#include "webrtc/video_engine/include/vie_base.h"
#include "webrtc/video_engine/include/vie_codec.h"
#include "webrtc/video_engine/include/vie_rtp_rtcp.h"
+#include "webrtc/video_engine/include/vie_network.h"
+#include "webrtc/video_engine/include/vie_rtp_rtcp.h"
namespace webrtc {
const char* RtpExtension::kTOffset = "urn:ietf:params:rtp-hdrext:toffset";
name == webrtc::RtpExtension::kAbsSendTime;
}
+VideoEncoder* VideoEncoder::Create(VideoEncoder::EncoderType codec_type) {
+ switch (codec_type) {
+ case kVp8:
+ return VP8Encoder::Create();
+ }
+ assert(false);
+ return NULL;
+}
+
namespace internal {
class CpuOveruseObserverProxy : public webrtc::CpuOveruseObserver {
virtual VideoSendStream* CreateVideoSendStream(
const VideoSendStream::Config& config,
- const std::vector<VideoStream>& video_streams,
- const void* encoder_settings) OVERRIDE;
+ const VideoEncoderConfig& encoder_config) OVERRIDE;
virtual void DestroyVideoSendStream(webrtc::VideoSendStream* send_stream)
OVERRIDE;
virtual DeliveryStatus DeliverPacket(const uint8_t* packet,
size_t length) OVERRIDE;
+ virtual void SignalNetworkState(NetworkState state) OVERRIDE;
+
private:
DeliveryStatus DeliverRtcp(const uint8_t* packet, size_t length);
DeliveryStatus DeliverRtp(const uint8_t* packet, size_t length);
Call::Config config_;
+ // Needs to be held while write-locking |receive_crit_| or |send_crit_|. This
+ // ensures that we have a consistent network state signalled to all senders
+ // and receivers.
+ scoped_ptr<CriticalSectionWrapper> network_enabled_crit_;
+ bool network_enabled_ GUARDED_BY(network_enabled_crit_);
+
+ scoped_ptr<RWLockWrapper> receive_crit_;
std::map<uint32_t, VideoReceiveStream*> receive_ssrcs_
- GUARDED_BY(receive_lock_);
- scoped_ptr<RWLockWrapper> receive_lock_;
+ GUARDED_BY(receive_crit_);
- std::map<uint32_t, VideoSendStream*> send_ssrcs_ GUARDED_BY(send_lock_);
- scoped_ptr<RWLockWrapper> send_lock_;
+ scoped_ptr<RWLockWrapper> send_crit_;
+ std::map<uint32_t, VideoSendStream*> send_ssrcs_ GUARDED_BY(send_crit_);
scoped_ptr<CpuOveruseObserverProxy> overuse_observer_proxy_;
Call::Call(webrtc::VideoEngine* video_engine, const Call::Config& config)
: config_(config),
- receive_lock_(RWLockWrapper::CreateRWLock()),
- send_lock_(RWLockWrapper::CreateRWLock()),
+ network_enabled_crit_(CriticalSectionWrapper::CreateCriticalSection()),
+ network_enabled_(true),
+ receive_crit_(RWLockWrapper::CreateRWLock()),
+ send_crit_(RWLockWrapper::CreateRWLock()),
video_engine_(video_engine),
base_channel_id_(-1) {
assert(video_engine != NULL);
VideoSendStream* Call::CreateVideoSendStream(
const VideoSendStream::Config& config,
- const std::vector<VideoStream>& video_streams,
- const void* encoder_settings) {
+ const VideoEncoderConfig& encoder_config) {
assert(config.rtp.ssrcs.size() > 0);
// TODO(mflodman): Base the start bitrate on a current bandwidth estimate, if
overuse_observer_proxy_.get(),
video_engine_,
config,
- video_streams,
- encoder_settings,
+ encoder_config,
suspended_send_ssrcs_,
base_channel_id_,
config_.start_bitrate_bps != -1 ? config_.start_bitrate_bps
: kDefaultVideoStreamBitrateBps);
- WriteLockScoped write_lock(*send_lock_);
+ // This needs to be taken before send_crit_ as both locks need to be held
+ // while changing network state.
+ CriticalSectionScoped lock(network_enabled_crit_.get());
+ WriteLockScoped write_lock(*send_crit_);
for (size_t i = 0; i < config.rtp.ssrcs.size(); ++i) {
assert(send_ssrcs_.find(config.rtp.ssrcs[i]) == send_ssrcs_.end());
send_ssrcs_[config.rtp.ssrcs[i]] = send_stream;
}
+ if (!network_enabled_)
+ send_stream->SignalNetworkState(kNetworkDown);
return send_stream;
}
VideoSendStream* send_stream_impl = NULL;
{
- WriteLockScoped write_lock(*send_lock_);
+ WriteLockScoped write_lock(*send_crit_);
std::map<uint32_t, VideoSendStream*>::iterator it = send_ssrcs_.begin();
while (it != send_ssrcs_.end()) {
if (it->second == static_cast<VideoSendStream*>(send_stream)) {
config_.voice_engine,
base_channel_id_);
- WriteLockScoped write_lock(*receive_lock_);
+ // This needs to be taken before receive_crit_ as both locks need to be held
+ // while changing network state.
+ CriticalSectionScoped lock(network_enabled_crit_.get());
+ WriteLockScoped write_lock(*receive_crit_);
assert(receive_ssrcs_.find(config.rtp.remote_ssrc) == receive_ssrcs_.end());
receive_ssrcs_[config.rtp.remote_ssrc] = receive_stream;
// TODO(pbos): Configure different RTX payloads per receive payload.
if (it != config.rtp.rtx.end())
receive_ssrcs_[it->second.ssrc] = receive_stream;
+ if (!network_enabled_)
+ receive_stream->SignalNetworkState(kNetworkDown);
return receive_stream;
}
VideoReceiveStream* receive_stream_impl = NULL;
{
- WriteLockScoped write_lock(*receive_lock_);
+ WriteLockScoped write_lock(*receive_crit_);
// Remove all ssrcs pointing to a receive stream. As RTX retransmits on a
// separate SSRC there can be either one or two.
std::map<uint32_t, VideoReceiveStream*>::iterator it =
return 0;
}
+void Call::SignalNetworkState(NetworkState state) {
+ // Take crit for entire function, it needs to be held while updating streams
+ // to guarantee a consistent state across streams.
+ CriticalSectionScoped lock(network_enabled_crit_.get());
+ network_enabled_ = state == kNetworkUp;
+ {
+ ReadLockScoped write_lock(*send_crit_);
+ for (std::map<uint32_t, VideoSendStream*>::iterator it =
+ send_ssrcs_.begin();
+ it != send_ssrcs_.end();
+ ++it) {
+ it->second->SignalNetworkState(state);
+ }
+ }
+ {
+ ReadLockScoped write_lock(*receive_crit_);
+ for (std::map<uint32_t, VideoReceiveStream*>::iterator it =
+ receive_ssrcs_.begin();
+ it != receive_ssrcs_.end();
+ ++it) {
+ it->second->SignalNetworkState(state);
+ }
+ }
+}
+
PacketReceiver::DeliveryStatus Call::DeliverRtcp(const uint8_t* packet,
size_t length) {
// TODO(pbos): Figure out what channel needs it actually.
// there's no receiver of the packet.
bool rtcp_delivered = false;
{
- ReadLockScoped read_lock(*receive_lock_);
+ ReadLockScoped read_lock(*receive_crit_);
for (std::map<uint32_t, VideoReceiveStream*>::iterator it =
receive_ssrcs_.begin();
it != receive_ssrcs_.end();
}
{
- ReadLockScoped read_lock(*send_lock_);
+ ReadLockScoped read_lock(*send_crit_);
for (std::map<uint32_t, VideoSendStream*>::iterator it =
send_ssrcs_.begin();
it != send_ssrcs_.end();
const uint8_t* ptr = &packet[8];
uint32_t ssrc = ptr[0] << 24 | ptr[1] << 16 | ptr[2] << 8 | ptr[3];
- ReadLockScoped read_lock(*receive_lock_);
+ ReadLockScoped read_lock(*receive_crit_);
std::map<uint32_t, VideoReceiveStream*>::iterator it =
receive_ssrcs_.find(ssrc);
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