Introduce VideoConfig/AudioConfig class for CMA backend

chromecast/media/cma/base/decoder_config_adapter.h

+// Copyright 2015 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.
+
+#ifndef CHROMECAST_MEDIA_CMA_BASE_DECODER_CONFIG_ADAPTER_H_
+#define CHROMECAST_MEDIA_CMA_BASE_DECODER_CONFIG_ADAPTER_H_
+
+#include "chromecast/public/media/decoder_config.h"
+#include "media/base/audio_decoder_config.h"
+#include "media/base/video_decoder_config.h"
+
+namespace chromecast {
+namespace media {
+
+class DecoderConfig;
+
+class DecoderConfigAdapter {
+ public:
+  // Converts ::media::AudioDecoderConfig to chromecast::media::DecoderConfig.
+  static DecoderConfig ToDecoderConfig(
+      const ::media::AudioDecoderConfig& config);
+
+  // Converts ::media::VideoDecoderConfig to chromecast::media::DecoderConfig
+  static DecoderConfig ToDecoderConfig(
+      const ::media::VideoDecoderConfig& config);
+
+ private:
+  // Converts ::media::AudioCodec to chromecast::media::Codec. Any unknown or
+  // unsupported codec will be converted to chromecast::media::UnknownCodec.
+  static Codec ToCodec(const ::media::AudioCodec audio_codec);

[gunsch, 2015/04/17 01:38:51]

since these are all static methods, why not just have them in an anonymous
namespace in decoder_config_adapter.cc?

[erickung1, 2015/04/29 08:52:20]

Done.

+
+  // Converts ::media::VideoCodec to chromecast::media::Codec. Any unknown or
+  // unsupported codec will be converted to chromecast::media::UnknownCodec.
+  static Codec ToCodec(const ::media::VideoCodec video_codec);
+
+  // Converts ::media::VideoCodecProfile to chromecast::media::Profile.
+  static Profile ToProfile(const ::media::VideoCodecProfile codec_profile);
+};
+
+}  // namespace media
+}  // namespace chromecast
+
+#endif  // CHROMECAST_MEDIA_CMA_BASE_DECODER_CONFIG_ADAPTER_H_