[Cast] Size-Adaptable platform video encoders.

media/cast/sender/video_encoder_impl.cc

 // Copyright 2014 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 "media/cast/sender/video_encoder_impl.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/logging.h"
@@ skipping 34 matching lines @@
 
   scoped_ptr<EncodedFrame> encoded_frame(new EncodedFrame());
   encoder->Encode(video_frame, reference_time, encoded_frame.get());
   environment->PostTask(
       CastEnvironment::MAIN,
       FROM_HERE,
       base::Bind(frame_encoded_callback, base::Passed(&encoded_frame)));
 }
 }  // namespace
 
+// static
+bool VideoEncoderImpl::IsSupported(const VideoSenderConfig& video_config) {
+#ifndef OFFICIAL_BUILD
+  if (video_config.codec == CODEC_VIDEO_FAKE)
+    return true;
+#endif
+  return video_config.codec == CODEC_VIDEO_VP8;
+}
+
 VideoEncoderImpl::VideoEncoderImpl(
     scoped_refptr<CastEnvironment> cast_environment,
     const VideoSenderConfig& video_config,
     const StatusChangeCallback& status_change_cb)
     : cast_environment_(cast_environment) {
   CHECK(cast_environment_->HasVideoThread());
   DCHECK(!status_change_cb.is_null());
 
   if (video_config.codec == CODEC_VIDEO_VP8) {
     encoder_.reset(new Vp8Encoder(video_config));
@@ skipping 26 matching lines @@
   DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN));
   if (encoder_) {
     cast_environment_->PostTask(
         CastEnvironment::VIDEO,
         FROM_HERE,
         base::Bind(&base::DeletePointer<SoftwareVideoEncoder>,
                    encoder_.release()));
   }
 }
 
-bool VideoEncoderImpl::CanEncodeVariedFrameSizes() const {
-  // Both the VP8Encoder and FakeSoftwareVideoEncoder support calls to
-  // EncodeVideoFrame() with different frame sizes.
-  return true;
-}
-
 bool VideoEncoderImpl::EncodeVideoFrame(
     const scoped_refptr<media::VideoFrame>& video_frame,
     const base::TimeTicks& reference_time,
     const FrameEncodedCallback& frame_encoded_callback) {
   DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN));
   DCHECK(!video_frame->visible_rect().IsEmpty());
   DCHECK(!frame_encoded_callback.is_null());
 
   cast_environment_->PostTask(CastEnvironment::VIDEO,
                               FROM_HERE,
@@ skipping 19 matching lines @@
   dynamic_config_.key_frame_requested = true;
 }
 
 // Inform the encoder to only reference frames older or equal to frame_id;
 void VideoEncoderImpl::LatestFrameIdToReference(uint32 frame_id) {
   dynamic_config_.latest_frame_id_to_reference = frame_id;
 }
 
 }  //  namespace cast
 }  //  namespace media