Introduce VideoConfig/AudioConfig class for CMA backend

chromecast/public/media/decoder_config.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_PUBLIC_DECODER_CONFIG_H_
+#define CHROMECAST_MEDIA_CMA_PUBLIC_DECODER_CONFIG_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+
+namespace chromecast {
+namespace media {
+
+enum Codec {
+  kUnknownCodec = -1,
+
+  kAudioCodecMin = 0,
+  kCodecAAC = kAudioCodecMin,
+  kCodecMP3,
+  kCodecPCM,
+  kCodecPCM_S16BE,
+  kCodecVorbis,
+  kCodecOpus,
+  kCodecEAC3,
+  kCodecAC3,
+  kCodecDTS,
+  kAudioCodecMax = kCodecDTS,
+
+  kVideoCodecMin = 0x100,
+  kCodecH264 = kVideoCodecMin,
+  kCodecVC1,
+  kCodecMPEG2,
+  kCodecMPEG4,
+  kCodecTheora,
+  kCodecVP8,
+  kCodecVP9,
+  kCodecHEVC,
+  kVideoCodecMax = kCodecHEVC,
+};
+
+// Profile for Video codec.
+enum Profile {
+  kCodecProfileUnknown = -1,
+
+  kCodecProfileMin = 0,
+  kH264Baseline = kCodecProfileMin,
+  kH264Main = 1,
+  kH264Extended = 2,
+  kH264High = 3,
+  kH264High10 = 4,
+  kH264High422 = 5,
+  kH264High444Predictive = 6,
+  kH264ScalabBaseline = 7,
+  kH264ScalableHigh = 8,
+  kH264Stereohigh = 9,
+  kH264MultiviewHigh = 10,
+  kVP8ProfileAny = 11,
+  kVP9ProfileAny = 12,
+  kCodecProfileMax = kVP9ProfileAny,
+};
+
+struct DecoderConfig {

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

Out of curiosity, what was the logic for merging the two fields into one struct
rather than keeping them separate? ISTM like that loses a small dimension of
type safety.

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

Done. Slipt to AudioConfig and VideoConfig

+  DecoderConfig();
+  ~DecoderConfig();
+
+  Codec codec;
+
+  // Video related config.
+  Profile profile;
+
+  // Audio related config.
+  int bytes_per_channel;
+  int channel_number;
+  int samples_per_second;
+
+  // Optional extra buffer for decoder initialization.
+  std::vector<uint8> extra_data;
+
+  bool is_encrypted;
+  bool is_valid_config;
+};
+
+}  // namespace media
+}  // namespace chromecast
+
+#endif  // CHROMECAST_MEDIA_CMA_PUBLIC_DECODER_CONFIG_H_