media/filters/decoder_stream_traits.h

   1 // Copyright 2014 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 #ifndef MEDIA_FILTERS_DECODER_STREAM_TRAITS_H_
   6 #define MEDIA_FILTERS_DECODER_STREAM_TRAITS_H_
   7
   8 #include "media/base/demuxer_stream.h"
   9 #include "media/base/pipeline_status.h"
  10
  11 namespace media {
  12
  13 class AudioBuffer;
  14 class AudioDecoder;
  15 class DecryptingAudioDecoder;
  16 class DecryptingVideoDecoder;
  17 class DemuxerStream;
  18 class VideoDecoder;
  19 class VideoFrame;
  20
  21 template <DemuxerStream::Type StreamType>
  22 struct DecoderStreamTraits {};
  23
  24 template <>
  25 struct DecoderStreamTraits<DemuxerStream::AUDIO> {
  26   typedef AudioBuffer OutputType;
  27   typedef AudioDecoder DecoderType;
  28   typedef AudioDecoderConfig DecoderConfigType;
  29   typedef DecryptingAudioDecoder DecryptingDecoderType;
  30   typedef base::Callback<void(bool success)> StreamInitCB;
  31
  32   static std::string ToString();
  33   static void Initialize(DecoderType* decoder,
  34                          const DecoderConfigType& config,
  35                          bool low_delay,
  36                          const PipelineStatusCB& status_cb);
  37   static bool FinishInitialization(const StreamInitCB& init_cb,
  38                                    DecoderType* decoder,
  39                                    DemuxerStream* stream);
  40   static void ReportStatistics(const StatisticsCB& statistics_cb,
  41                                int bytes_decoded);
  42   static DecoderConfigType GetDecoderConfig(DemuxerStream& stream);
  43 };
  44
  45 template <>
  46 struct DecoderStreamTraits<DemuxerStream::VIDEO> {
  47   typedef VideoFrame OutputType;
  48   typedef VideoDecoder DecoderType;
  49   typedef VideoDecoderConfig DecoderConfigType;
  50   typedef DecryptingVideoDecoder DecryptingDecoderType;
  51   typedef base::Callback<void(bool success)> StreamInitCB;
  52
  53   static std::string ToString();
  54   static void Initialize(DecoderType* decoder,
  55                          const DecoderConfigType& config,
  56                          bool low_delay,
  57                          const PipelineStatusCB& status_cb);
  58   static bool FinishInitialization(const StreamInitCB& init_cb,
  59                                    DecoderType* decoder,
  60                                    DemuxerStream* stream);
  61   static void ReportStatistics(const StatisticsCB& statistics_cb,
  62                                int bytes_decoded);
  63   static DecoderConfigType GetDecoderConfig(DemuxerStream& stream);
  64 };
  65
  66 }  // namespace media
  67
  68 #endif  // MEDIA_FILTERS_DECODER_STREAM_TRAITS_H_