Support for H264 HW offload for webRTC.

content/renderer/media/rtc_video_decoder.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/rtc_video_decoder.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 98 matching lines @@
 scoped_ptr<RTCVideoDecoder> RTCVideoDecoder::Create(
     webrtc::VideoCodecType type,
     const scoped_refptr<media::GpuVideoAcceleratorFactories>& factories) {
   scoped_ptr<RTCVideoDecoder> decoder;
   // Convert WebRTC codec type to media codec profile.
   media::VideoCodecProfile profile;
   switch (type) {
     case webrtc::kVideoCodecVP8:
       profile = media::VP8PROFILE_MAIN;
       break;
+    case webrtc::kVideoCodecH264:
+      profile = media::H264PROFILE_MAIN;
+      break;
     default:
       DVLOG(2) << "Video codec not supported:" << type;
       return decoder.Pass();
   }
 
   base::WaitableEvent waiter(true, false);
   decoder.reset(new RTCVideoDecoder(factories));
   decoder->factories_->GetTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&RTCVideoDecoder::CreateVDA,
                  base::Unretained(decoder.get()),
                  profile,
                  &waiter));
   waiter.Wait();
   // vda can be NULL if VP8 is not supported.
   if (decoder->vda_ != NULL) {
     decoder->state_ = INITIALIZED;
   } else {
     factories->GetTaskRunner()->DeleteSoon(FROM_HERE, decoder.release());
   }
   return decoder.Pass();
 }
 
 int32_t RTCVideoDecoder::InitDecode(const webrtc::VideoCodec* codecSettings,
                                     int32_t /*numberOfCores*/) {
   DVLOG(2) << "InitDecode";
-  DCHECK_EQ(codecSettings->codecType, webrtc::kVideoCodecVP8);
-  if (codecSettings->codecSpecific.VP8.feedbackModeOn) {
+  DCHECK(codecSettings->codecType == webrtc::kVideoCodecVP8 ||

[Pawel Osciak, 2014/08/10 00:30:29]

We should verify against the type passed to Create(), since that's what VDA has
been Initialize()d with.

[hshi1, 2014/08/12 01:06:55]

Done (requires passing |type| to ctor of RTCVD).

+         codecSettings->codecType == webrtc::kVideoCodecH264);
+  if (codecSettings->codecType == webrtc::kVideoCodecVP8 &&
+      codecSettings->codecSpecific.VP8.feedbackModeOn) {
     LOG(ERROR) << "Feedback mode not supported";
     return RecordInitDecodeUMA(WEBRTC_VIDEO_CODEC_ERROR);
   }
 
   base::AutoLock auto_lock(lock_);
   if (state_ == UNINITIALIZED || state_ == DECODE_ERROR) {
     LOG(ERROR) << "VDA is not initialized. state=" << state_;
     return RecordInitDecodeUMA(WEBRTC_VIDEO_CODEC_UNINITIALIZED);
   }
   // Create some shared memory if the queue is empty.
@@ skipping 639 matching lines @@
   UMA_HISTOGRAM_BOOLEAN("Media.RTCVideoDecoderInitDecodeSuccess", sample);
   return status;
 }
 
 void RTCVideoDecoder::DCheckGpuVideoAcceleratorFactoriesTaskRunnerIsCurrent()
     const {
   DCHECK(factories_->GetTaskRunner()->BelongsToCurrentThread());
 }
 
 }  // namespace content