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      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 #include "media/filters/decoder_stream_traits.h"
      6 
      7 #include "base/logging.h"
      8 #include "media/base/audio_buffer.h"
      9 #include "media/base/audio_decoder.h"
     10 #include "media/base/audio_decoder_config.h"
     11 #include "media/base/video_decoder.h"
     12 #include "media/base/video_decoder_config.h"
     13 #include "media/base/video_frame.h"
     14 
     15 namespace media {
     16 
     17 std::string DecoderStreamTraits<DemuxerStream::AUDIO>::ToString() {
     18   return "Audio";
     19 }
     20 
     21 void DecoderStreamTraits<DemuxerStream::AUDIO>::Initialize(
     22     DecoderType* decoder,
     23     const DecoderConfigType& config,
     24     bool low_delay,
     25     const PipelineStatusCB& status_cb,
     26     const OutputCB& output_cb) {
     27   decoder->Initialize(config, status_cb, output_cb);
     28 }
     29 
     30 bool DecoderStreamTraits<DemuxerStream::AUDIO>::FinishInitialization(
     31     const StreamInitCB& init_cb,
     32     DecoderType* decoder,
     33     DemuxerStream* stream) {
     34   DCHECK(stream);
     35   if (!decoder) {
     36     init_cb.Run(false);
     37     return false;
     38   }
     39   init_cb.Run(true);
     40   return true;
     41 }
     42 
     43 void DecoderStreamTraits<DemuxerStream::AUDIO>::ReportStatistics(
     44     const StatisticsCB& statistics_cb,
     45     int bytes_decoded) {
     46   PipelineStatistics statistics;
     47   statistics.audio_bytes_decoded = bytes_decoded;
     48   statistics_cb.Run(statistics);
     49 }
     50 
     51 DecoderStreamTraits<DemuxerStream::AUDIO>::DecoderConfigType
     52     DecoderStreamTraits<DemuxerStream::AUDIO>::GetDecoderConfig(
     53         DemuxerStream& stream) {
     54   return stream.audio_decoder_config();
     55 }
     56 
     57 scoped_refptr<DecoderStreamTraits<DemuxerStream::AUDIO>::OutputType>
     58     DecoderStreamTraits<DemuxerStream::AUDIO>::CreateEOSOutput() {
     59   return OutputType::CreateEOSBuffer();
     60 }
     61 
     62 std::string DecoderStreamTraits<DemuxerStream::VIDEO>::ToString() {
     63   return "Video";
     64 }
     65 
     66 void DecoderStreamTraits<DemuxerStream::VIDEO>::Initialize(
     67     DecoderType* decoder,
     68     const DecoderConfigType& config,
     69     bool low_delay,
     70     const PipelineStatusCB& status_cb,
     71     const OutputCB& output_cb) {
     72   decoder->Initialize(config, low_delay, status_cb, output_cb);
     73 }
     74 
     75 bool DecoderStreamTraits<DemuxerStream::VIDEO>::FinishInitialization(
     76     const StreamInitCB& init_cb,
     77     DecoderType* decoder,
     78     DemuxerStream* stream) {
     79   DCHECK(stream);
     80   if (!decoder) {
     81     init_cb.Run(false);
     82     return false;
     83   }
     84   if (decoder->NeedsBitstreamConversion())
     85     stream->EnableBitstreamConverter();
     86   init_cb.Run(true);
     87   return true;
     88 }
     89 
     90 void DecoderStreamTraits<DemuxerStream::VIDEO>::ReportStatistics(
     91     const StatisticsCB& statistics_cb,
     92     int bytes_decoded) {
     93   PipelineStatistics statistics;
     94   statistics.video_bytes_decoded = bytes_decoded;
     95   statistics_cb.Run(statistics);
     96 }
     97 
     98 DecoderStreamTraits<DemuxerStream::VIDEO>::DecoderConfigType
     99     DecoderStreamTraits<DemuxerStream::VIDEO>::GetDecoderConfig(
    100         DemuxerStream& stream) {
    101   return stream.video_decoder_config();
    102 }
    103 
    104 scoped_refptr<DecoderStreamTraits<DemuxerStream::VIDEO>::OutputType>
    105     DecoderStreamTraits<DemuxerStream::VIDEO>::CreateEOSOutput() {
    106   return OutputType::CreateEOSFrame();
    107 }
    108 
    109 }  // namespace media
    110