media/cast/video_receiver/video_decoder.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "media/cast/video_receiver/video_decoder.h"
   6
   7 #include "base/bind.h"
   8 #include "base/logging.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "media/cast/video_receiver/codecs/vp8/vp8_decoder.h"
  11
  12 namespace media {
  13 namespace cast {
  14
  15 VideoDecoder::VideoDecoder(const VideoReceiverConfig& video_config,
  16                            scoped_refptr<CastEnvironment> cast_environment)
  17     : codec_(video_config.codec), vp8_decoder_() {
  18   switch (video_config.codec) {
  19     case transport::kVp8:
  20       vp8_decoder_.reset(new Vp8Decoder(cast_environment));
  21       break;
  22     case transport::kH264:
  23       NOTIMPLEMENTED();
  24       break;
  25   }
  26 }
  27
  28 VideoDecoder::~VideoDecoder() {}
  29
  30 bool VideoDecoder::DecodeVideoFrame(
  31     const transport::EncodedVideoFrame* encoded_frame,
  32     const base::TimeTicks render_time,
  33     const VideoFrameDecodedCallback& frame_decoded_cb) {
  34   DCHECK(encoded_frame->codec == codec_) << "Invalid codec";
  35   DCHECK_GT(encoded_frame->data.size(), GG_UINT64_C(0)) << "Empty video frame";
  36   return vp8_decoder_->Decode(encoded_frame, render_time, frame_decoded_cb);
  37 }
  38
  39 }  // namespace cast
  40 }  // namespace media