webkit/media/filter_helpers.h

   1 // Copyright (c) 2012 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 WEBKIT_MEDIA_FILTER_HELPERS_H_
   6 #define WEBKIT_MEDIA_FILTER_HELPERS_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/memory/scoped_vector.h"
  11 // TODO(fgalligan): Remove the dependency on FFmpeg.
  12 #include "media/filters/ffmpeg_demuxer.h"
  13
  14 namespace base {
  15 class MessageLoopProxy;
  16 }
  17
  18 namespace media {
  19 class AudioDecoder;
  20 class ChunkDemuxer;
  21 class DataSource;
  22 class FilterCollection;
  23 }
  24
  25 namespace webkit_media {
  26
  27 // Creates and adds the default set of audio decoders to |audio_decoders|.
  28 void AddDefaultAudioDecoders(
  29     const scoped_refptr<base::MessageLoopProxy>& message_loop,
  30     ScopedVector<media::AudioDecoder>* audio_decoders);
  31
  32 // Builds the required filters for handling media source URLs, adds them to
  33 // |filter_collection|.
  34 void BuildMediaSourceCollection(
  35     const scoped_refptr<media::ChunkDemuxer>& demuxer,
  36     const scoped_refptr<base::MessageLoopProxy>& message_loop,
  37     media::FilterCollection* filter_collection);
  38
  39 // Builds the required filters for handling regular URLs and adds them to
  40 // |filter_collection| and fills |video_decoder| returning true if successful.
  41 void BuildDefaultCollection(
  42     const scoped_refptr<media::DataSource>& data_source,
  43     const scoped_refptr<base::MessageLoopProxy>& message_loop,
  44     media::FilterCollection* filter_collection,
  45     const media::FFmpegNeedKeyCB& need_key_cb);
  46
  47 }  // webkit_media
  48
  49 #endif  // WEBKIT_MEDIA_FILTER_HELPERS_H_