Add VideoCodec::PreferDecodeLate

webrtc/modules/video_coding/main/source/video_receiver.cc

Index: webrtc/modules/video_coding/main/source/video_receiver.cc
diff --git a/webrtc/modules/video_coding/main/source/video_receiver.cc b/webrtc/modules/video_coding/main/source/video_receiver.cc
index cf0a490da991fcc27cd338450d928b1b856c95ae..8dc8ba2cfbca2f16575ba55e9f6fc3001f345e6d 100644
--- a/webrtc/modules/video_coding/main/source/video_receiver.cc
+++ b/webrtc/modules/video_coding/main/source/video_receiver.cc
@@ -235,11 +235,9 @@ int32_t VideoReceiver::RegisterDecoderTimingCallback(
   return VCM_OK;
 }
 
-// Register an externally defined decoder/render object.
-// Can be a decoder only or a decoder coupled with a renderer.
+// Register an externally defined decoder object.
 int32_t VideoReceiver::RegisterExternalDecoder(VideoDecoder* externalDecoder,
-                                               uint8_t payloadType,
-                                               bool internalRenderTiming) {
+                                               uint8_t payloadType) {
   CriticalSectionScoped cs(_receiveCritSect);
   if (externalDecoder == NULL) {
     // Make sure the VCM updates the decoder next time it decodes.
@@ -247,7 +245,7 @@ int32_t VideoReceiver::RegisterExternalDecoder(VideoDecoder* externalDecoder,
     return _codecDataBase.DeregisterExternalDecoder(payloadType) ? 0 : -1;
   }
   return _codecDataBase.RegisterExternalDecoder(
-             externalDecoder, payloadType, internalRenderTiming)
+             externalDecoder, payloadType)
              ? 0
              : -1;
 }
@@ -282,14 +280,14 @@ void VideoReceiver::TriggerDecoderShutdown() {
 // Should be called as often as possible to get the most out of the decoder.
 int32_t VideoReceiver::Decode(uint16_t maxWaitTimeMs) {
   int64_t nextRenderTimeMs;
-  bool supports_render_scheduling;
+  bool has_only_one_output_buffer = false;
   {
     CriticalSectionScoped cs(_receiveCritSect);
-    supports_render_scheduling = _codecDataBase.SupportsRenderScheduling();
+    has_only_one_output_buffer = _codecDataBase.HasOnlyOneOutputBuffer();
   }
 
   VCMEncodedFrame* frame = _receiver.FrameForDecoding(
-      maxWaitTimeMs, nextRenderTimeMs, supports_render_scheduling);
+      maxWaitTimeMs, nextRenderTimeMs, has_only_one_output_buffer);
 
   if (frame == NULL) {
     return VCM_FRAME_NOT_READY;
@@ -370,14 +368,8 @@ int32_t VideoReceiver::Decode(const VCMEncodedFrame& frame) {
                           "type",
                           frame.FrameType());
   // Change decoder if payload type has changed
-  const bool renderTimingBefore = _codecDataBase.SupportsRenderScheduling();
   _decoder =
       _codecDataBase.GetDecoder(frame.PayloadType(), &_decodedFrameCallback);
-  if (renderTimingBefore != _codecDataBase.SupportsRenderScheduling()) {
-    // Make sure we reset the decode time estimate since it will
-    // be zero for codecs without render timing.
-    _timing.ResetDecodeTime();
-  }
   if (_decoder == NULL) {
     return VCM_NO_CODEC_REGISTERED;
   }