1 files changed, 320 insertions, 0 deletions
diff --git a/webrtc/modules/video_coding/video_coding_impl.cc b/webrtc/modules/video_coding/video_coding_impl.cc
new file mode 100644
index 0000000000..1e26a7e243
--- /dev/null
+++ b/webrtc/modules/video_coding/video_coding_impl.cc
@@ -0,0 +1,320 @@
+/*
+ *  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/modules/video_coding/video_coding_impl.h"
+
+#include <algorithm>
+
+#include "webrtc/common_types.h"
+#include "webrtc/common_video/libyuv/include/webrtc_libyuv.h"
+#include "webrtc/modules/video_coding/include/video_codec_interface.h"
+#include "webrtc/modules/video_coding/encoded_frame.h"
+#include "webrtc/modules/video_coding/jitter_buffer.h"
+#include "webrtc/modules/video_coding/packet.h"
+#include "webrtc/system_wrappers/include/clock.h"
+
+namespace webrtc {
+namespace vcm {
+
+int64_t VCMProcessTimer::Period() const {
+  return _periodMs;
+}
+
+int64_t VCMProcessTimer::TimeUntilProcess() const {
+  const int64_t time_since_process = _clock->TimeInMilliseconds() - _latestMs;
+  const int64_t time_until_process = _periodMs - time_since_process;
+  return std::max<int64_t>(time_until_process, 0);
+}
+
+void VCMProcessTimer::Processed() {
+  _latestMs = _clock->TimeInMilliseconds();
+}
+}  // namespace vcm
+
+namespace {
+// This wrapper provides a way to modify the callback without the need to expose
+// a register method all the way down to the function calling it.
+class EncodedImageCallbackWrapper : public EncodedImageCallback {
+ public:
+  EncodedImageCallbackWrapper()
+      : cs_(CriticalSectionWrapper::CreateCriticalSection()), callback_(NULL) {}
+
+  virtual ~EncodedImageCallbackWrapper() {}
+
+  void Register(EncodedImageCallback* callback) {
+    CriticalSectionScoped cs(cs_.get());
+    callback_ = callback;
+  }
+
+  // TODO(andresp): Change to void as return value is ignored.
+  virtual int32_t Encoded(const EncodedImage& encoded_image,
+                          const CodecSpecificInfo* codec_specific_info,
+                          const RTPFragmentationHeader* fragmentation) {
+    CriticalSectionScoped cs(cs_.get());
+    if (callback_)
+      return callback_->Encoded(encoded_image, codec_specific_info,
+                                fragmentation);
+    return 0;
+  }
+
+ private:
+  rtc::scoped_ptr<CriticalSectionWrapper> cs_;
+  EncodedImageCallback* callback_ GUARDED_BY(cs_);
+};
+
+class VideoCodingModuleImpl : public VideoCodingModule {
+ public:
+  VideoCodingModuleImpl(Clock* clock,
+                        EventFactory* event_factory,
+                        bool owns_event_factory,
+                        VideoEncoderRateObserver* encoder_rate_observer,
+                        VCMQMSettingsCallback* qm_settings_callback)
+      : VideoCodingModule(),
+        sender_(clock,
+                &post_encode_callback_,
+                encoder_rate_observer,
+                qm_settings_callback),
+        receiver_(clock, event_factory),
+        own_event_factory_(owns_event_factory ? event_factory : NULL) {}
+
+  virtual ~VideoCodingModuleImpl() { own_event_factory_.reset(); }
+
+  int64_t TimeUntilNextProcess() override {
+    int64_t sender_time = sender_.TimeUntilNextProcess();
+    int64_t receiver_time = receiver_.TimeUntilNextProcess();
+    assert(sender_time >= 0);
+    assert(receiver_time >= 0);
+    return VCM_MIN(sender_time, receiver_time);
+  }
+
+  int32_t Process() override {
+    int32_t sender_return = sender_.Process();
+    int32_t receiver_return = receiver_.Process();
+    if (sender_return != VCM_OK)
+      return sender_return;
+    return receiver_return;
+  }
+
+  int32_t RegisterSendCodec(const VideoCodec* sendCodec,
+                            uint32_t numberOfCores,
+                            uint32_t maxPayloadSize) override {
+    return sender_.RegisterSendCodec(sendCodec, numberOfCores, maxPayloadSize);
+  }
+
+  int32_t RegisterExternalEncoder(VideoEncoder* externalEncoder,
+                                  uint8_t payloadType,
+                                  bool internalSource) override {
+    sender_.RegisterExternalEncoder(externalEncoder, payloadType,
+                                    internalSource);
+    return 0;
+  }
+
+  int Bitrate(unsigned int* bitrate) const override {
+    return sender_.Bitrate(bitrate);
+  }
+
+  int FrameRate(unsigned int* framerate) const override {
+    return sender_.FrameRate(framerate);
+  }
+
+  int32_t SetChannelParameters(uint32_t target_bitrate,  // bits/s.
+                               uint8_t lossRate,
+                               int64_t rtt) override {
+    return sender_.SetChannelParameters(target_bitrate, lossRate, rtt);
+  }
+
+  int32_t RegisterTransportCallback(
+      VCMPacketizationCallback* transport) override {
+    return sender_.RegisterTransportCallback(transport);
+  }
+
+  int32_t RegisterSendStatisticsCallback(
+      VCMSendStatisticsCallback* sendStats) override {
+    return sender_.RegisterSendStatisticsCallback(sendStats);
+  }
+
+  int32_t RegisterProtectionCallback(
+      VCMProtectionCallback* protection) override {
+    return sender_.RegisterProtectionCallback(protection);
+  }
+
+  int32_t SetVideoProtection(VCMVideoProtection videoProtection,
+                             bool enable) override {
+    // TODO(pbos): Remove enable from receive-side protection modes as well.
+    if (enable)
+      sender_.SetVideoProtection(videoProtection);
+    return receiver_.SetVideoProtection(videoProtection, enable);
+  }
+
+  int32_t AddVideoFrame(const VideoFrame& videoFrame,
+                        const VideoContentMetrics* contentMetrics,
+                        const CodecSpecificInfo* codecSpecificInfo) override {
+    return sender_.AddVideoFrame(videoFrame, contentMetrics, codecSpecificInfo);
+  }
+
+  int32_t IntraFrameRequest(int stream_index) override {
+    return sender_.IntraFrameRequest(stream_index);
+  }
+
+  int32_t EnableFrameDropper(bool enable) override {
+    return sender_.EnableFrameDropper(enable);
+  }
+
+  void SuspendBelowMinBitrate() override {
+    return sender_.SuspendBelowMinBitrate();
+  }
+
+  bool VideoSuspended() const override { return sender_.VideoSuspended(); }
+
+  int32_t RegisterReceiveCodec(const VideoCodec* receiveCodec,
+                               int32_t numberOfCores,
+                               bool requireKeyFrame) override {
+    return receiver_.RegisterReceiveCodec(receiveCodec, numberOfCores,
+                                          requireKeyFrame);
+  }
+
+  void RegisterExternalDecoder(VideoDecoder* externalDecoder,
+                               uint8_t payloadType) override {
+    receiver_.RegisterExternalDecoder(externalDecoder, payloadType);
+  }
+
+  int32_t RegisterReceiveCallback(
+      VCMReceiveCallback* receiveCallback) override {
+    return receiver_.RegisterReceiveCallback(receiveCallback);
+  }
+
+  int32_t RegisterReceiveStatisticsCallback(
+      VCMReceiveStatisticsCallback* receiveStats) override {
+    return receiver_.RegisterReceiveStatisticsCallback(receiveStats);
+  }
+
+  int32_t RegisterDecoderTimingCallback(
+      VCMDecoderTimingCallback* decoderTiming) override {
+    return receiver_.RegisterDecoderTimingCallback(decoderTiming);
+  }
+
+  int32_t RegisterFrameTypeCallback(
+      VCMFrameTypeCallback* frameTypeCallback) override {
+    return receiver_.RegisterFrameTypeCallback(frameTypeCallback);
+  }
+
+  int32_t RegisterPacketRequestCallback(
+      VCMPacketRequestCallback* callback) override {
+    return receiver_.RegisterPacketRequestCallback(callback);
+  }
+
+  int RegisterRenderBufferSizeCallback(
+      VCMRenderBufferSizeCallback* callback) override {
+    return receiver_.RegisterRenderBufferSizeCallback(callback);
+  }
+
+  int32_t Decode(uint16_t maxWaitTimeMs) override {
+    return receiver_.Decode(maxWaitTimeMs);
+  }
+
+  int32_t ResetDecoder() override { return receiver_.ResetDecoder(); }
+
+  int32_t ReceiveCodec(VideoCodec* currentReceiveCodec) const override {
+    return receiver_.ReceiveCodec(currentReceiveCodec);
+  }
+
+  VideoCodecType ReceiveCodec() const override {
+    return receiver_.ReceiveCodec();
+  }
+
+  int32_t IncomingPacket(const uint8_t* incomingPayload,
+                         size_t payloadLength,
+                         const WebRtcRTPHeader& rtpInfo) override {
+    return receiver_.IncomingPacket(incomingPayload, payloadLength, rtpInfo);
+  }
+
+  int32_t SetMinimumPlayoutDelay(uint32_t minPlayoutDelayMs) override {
+    return receiver_.SetMinimumPlayoutDelay(minPlayoutDelayMs);
+  }
+
+  int32_t SetRenderDelay(uint32_t timeMS) override {
+    return receiver_.SetRenderDelay(timeMS);
+  }
+
+  int32_t Delay() const override { return receiver_.Delay(); }
+
+  uint32_t DiscardedPackets() const override {
+    return receiver_.DiscardedPackets();
+  }
+
+  int SetReceiverRobustnessMode(ReceiverRobustness robustnessMode,
+                                VCMDecodeErrorMode errorMode) override {
+    return receiver_.SetReceiverRobustnessMode(robustnessMode, errorMode);
+  }
+
+  void SetNackSettings(size_t max_nack_list_size,
+                       int max_packet_age_to_nack,
+                       int max_incomplete_time_ms) override {
+    return receiver_.SetNackSettings(max_nack_list_size, max_packet_age_to_nack,
+                                     max_incomplete_time_ms);
+  }
+
+  void SetDecodeErrorMode(VCMDecodeErrorMode decode_error_mode) override {
+    return receiver_.SetDecodeErrorMode(decode_error_mode);
+  }
+
+  int SetMinReceiverDelay(int desired_delay_ms) override {
+    return receiver_.SetMinReceiverDelay(desired_delay_ms);
+  }
+
+  int32_t SetReceiveChannelParameters(int64_t rtt) override {
+    return receiver_.SetReceiveChannelParameters(rtt);
+  }
+
+  void RegisterPreDecodeImageCallback(EncodedImageCallback* observer) override {
+    receiver_.RegisterPreDecodeImageCallback(observer);
+  }
+
+  void RegisterPostEncodeImageCallback(
+      EncodedImageCallback* observer) override {
+    post_encode_callback_.Register(observer);
+  }
+
+  void TriggerDecoderShutdown() override { receiver_.TriggerDecoderShutdown(); }
+
+ private:
+  EncodedImageCallbackWrapper post_encode_callback_;
+  vcm::VideoSender sender_;
+  vcm::VideoReceiver receiver_;
+  rtc::scoped_ptr<EventFactory> own_event_factory_;
+};
+}  // namespace
+
+void VideoCodingModule::Codec(VideoCodecType codecType, VideoCodec* codec) {
+  VCMCodecDataBase::Codec(codecType, codec);
+}
+
+VideoCodingModule* VideoCodingModule::Create(
+    Clock* clock,
+    VideoEncoderRateObserver* encoder_rate_observer,
+    VCMQMSettingsCallback* qm_settings_callback) {
+  return new VideoCodingModuleImpl(clock, new EventFactoryImpl, true,
+                                   encoder_rate_observer, qm_settings_callback);
+}
+
+VideoCodingModule* VideoCodingModule::Create(Clock* clock,
+                                             EventFactory* event_factory) {
+  assert(clock);
+  assert(event_factory);
+  return new VideoCodingModuleImpl(clock, event_factory, false, nullptr,
+                                   nullptr);
+}
+
+void VideoCodingModule::Destroy(VideoCodingModule* module) {
+  if (module != NULL) {
+    delete static_cast<VideoCodingModuleImpl*>(module);
+  }
+}
+}  // namespace webrtc