Add _decoder CHECK to VCMGenericDecoder constructor.

webrtc/modules/video_coding/generic_decoder.cc

 /*
  *  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/base/checks.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/base/trace_event.h"
+#include "webrtc/modules/video_coding/generic_decoder.h"
 #include "webrtc/modules/video_coding/include/video_coding.h"
-#include "webrtc/modules/video_coding/generic_decoder.h"
 #include "webrtc/modules/video_coding/internal_defines.h"
 #include "webrtc/system_wrappers/include/clock.h"
 
 namespace webrtc {
 
 VCMDecodedFrameCallback::VCMDecodedFrameCallback(VCMTiming& timing,
                                                  Clock* clock)
 :
 _critSect(CriticalSectionWrapper::CreateCriticalSection()),
 _clock(clock),
@@ skipping 99 matching lines @@
 int32_t VCMDecodedFrameCallback::Pop(uint32_t timestamp)
 {
     CriticalSectionScoped cs(_critSect);
     if (_timestampMap.Pop(timestamp) == NULL)
     {
         return VCM_GENERAL_ERROR;
     }
     return VCM_OK;
 }
 
-VCMGenericDecoder::VCMGenericDecoder(VideoDecoder& decoder, bool isExternal)
-:
-_callback(NULL),
-_frameInfos(),
-_nextFrameInfoIdx(0),
-_decoder(decoder),
-_codecType(kVideoCodecUnknown),
-_isExternal(isExternal),
-_keyFrameDecoded(false)
-{
+VCMGenericDecoder::VCMGenericDecoder(VideoDecoder* decoder, bool isExternal)
+    : _callback(NULL),
+      _frameInfos(),
+      _nextFrameInfoIdx(0),
+      _decoder(decoder),
+      _codecType(kVideoCodecUnknown),
+      _isExternal(isExternal),
+      _keyFrameDecoded(false) {
+  RTC_CHECK(_decoder);
 }
 
 VCMGenericDecoder::~VCMGenericDecoder()
 {
 }
 
 int32_t VCMGenericDecoder::InitDecode(const VideoCodec* settings,
                                       int32_t numberOfCores)
 {
     TRACE_EVENT0("webrtc", "VCMGenericDecoder::InitDecode");
     _codecType = settings->codecType;
 
-    return _decoder.InitDecode(settings, numberOfCores);
+    return _decoder->InitDecode(settings, numberOfCores);
 }
 
 int32_t VCMGenericDecoder::Decode(const VCMEncodedFrame& frame, int64_t nowMs) {
     TRACE_EVENT1("webrtc", "VCMGenericDecoder::Decode", "timestamp",
                  frame.EncodedImage()._timeStamp);
     _frameInfos[_nextFrameInfoIdx].decodeStartTimeMs = nowMs;
     _frameInfos[_nextFrameInfoIdx].renderTimeMs = frame.RenderTimeMs();
     _frameInfos[_nextFrameInfoIdx].rotation = frame.rotation();
     _callback->Map(frame.TimeStamp(), &_frameInfos[_nextFrameInfoIdx]);
 
     _nextFrameInfoIdx = (_nextFrameInfoIdx + 1) % kDecoderFrameMemoryLength;
-    int32_t ret = _decoder.Decode(frame.EncodedImage(),
+    int32_t ret = _decoder->Decode(frame.EncodedImage(),
                                         frame.MissingFrame(),
                                         frame.FragmentationHeader(),
                                         frame.CodecSpecific(),
                                         frame.RenderTimeMs());
 
     if (ret < WEBRTC_VIDEO_CODEC_OK)
     {
         LOG(LS_WARNING) << "Failed to decode frame with timestamp "
                         << frame.TimeStamp() << ", error code: " << ret;
         _callback->Pop(frame.TimeStamp());
         return ret;
     }
     else if (ret == WEBRTC_VIDEO_CODEC_NO_OUTPUT ||
              ret == WEBRTC_VIDEO_CODEC_REQUEST_SLI)
     {
         // No output
         _callback->Pop(frame.TimeStamp());
     }
     return ret;
 }
 
 int32_t
 VCMGenericDecoder::Release()
 {
-    return _decoder.Release();
+    return _decoder->Release();
 }
 
 int32_t VCMGenericDecoder::Reset()
 {
-    return _decoder.Reset();
+    return _decoder->Reset();
 }
 
 int32_t VCMGenericDecoder::RegisterDecodeCompleteCallback(VCMDecodedFrameCallback* callback)
 {
     _callback = callback;
-    return _decoder.RegisterDecodeCompleteCallback(callback);
+    return _decoder->RegisterDecodeCompleteCallback(callback);
 }
 
 bool VCMGenericDecoder::External() const
 {
     return _isExternal;
 }
 
 }  // namespace