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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_ | 5 #ifndef MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_ |
| 6 #define MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_ | 6 #define MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_ |
| 7 | 7 |
| 8 #include "base/macros.h" | 8 #include "base/macros.h" |
| 9 #include "media/base/demuxer_stream.h" | 9 #include "media/base/demuxer_stream.h" |
| 10 #include "media/base/media_export.h" | 10 #include "media/base/media_export.h" |
| 11 #include "media/base/media_url_params.h" |
| 11 #include "url/gurl.h" | 12 #include "url/gurl.h" |
| 12 | 13 |
| 13 namespace media { | 14 namespace media { |
| 14 | 15 |
| 15 // Abstract class that defines how to retrieve "media sources" in DemuxerStream | 16 // Abstract class that defines how to retrieve "media sources" in DemuxerStream |
| 16 // form (for most cases) or URL form (for the MediaPlayerRenderer case). | 17 // form (for most cases) or URL form (for the MediaPlayerRenderer case). |
| 17 // | 18 // |
| 18 // The sub-classes do not stricly provide demuxer streams, but because all | 19 // The sub-classes do not stricly provide demuxer streams, but because all |
| 19 // sub-classes are for the moment Demuxers, this class has not been renamed to | 20 // sub-classes are for the moment Demuxers, this class has not been renamed to |
| 20 // "MediaProvider". This class would be a good candidate for renaming, if | 21 // "MediaProvider". This class would be a good candidate for renaming, if |
| 21 // ever Pipeline were to support this class directly, instead of the Demuxer | 22 // ever Pipeline were to support this class directly, instead of the Demuxer |
| 22 // interface. | 23 // interface. |
| 24 // TODO(tguilbert): Rename this class. See crbug.com/658062. |
| 23 // | 25 // |
| 24 // The derived classes must return a non-null value for the getter method | 26 // The derived classes must return a non-null value for the getter method |
| 25 // associated with their type, and return a null/empty value for other getters. | 27 // associated with their type, and return a null/empty value for other getters. |
| 26 class MEDIA_EXPORT DemuxerStreamProvider { | 28 class MEDIA_EXPORT DemuxerStreamProvider { |
| 27 public: | 29 public: |
| 28 enum Type { | 30 enum Type { |
| 29 STREAM, // Indicates GetStream() should be used | 31 STREAM, // Indicates GetStream() should be used |
| 30 URL, // Indicates GetUrl() should be used | 32 URL, // Indicates GetUrl() should be used |
| 31 }; | 33 }; |
| 32 | 34 |
| 33 DemuxerStreamProvider(); | 35 DemuxerStreamProvider(); |
| 34 virtual ~DemuxerStreamProvider(); | 36 virtual ~DemuxerStreamProvider(); |
| 35 | 37 |
| 36 // For Type::STREAM: | 38 // For Type::STREAM: |
| 37 // Returns the first stream of the given stream type (which is not allowed | 39 // Returns the first stream of the given stream type (which is not allowed |
| 38 // to be DemuxerStream::TEXT), or NULL if that type of stream is not | 40 // to be DemuxerStream::TEXT), or NULL if that type of stream is not |
| 39 // present. | 41 // present. |
| 40 // Other types: | 42 // Other types: |
| 41 // Should not be called. | 43 // Should not be called. |
| 42 virtual DemuxerStream* GetStream(DemuxerStream::Type type) = 0; | 44 virtual DemuxerStream* GetStream(DemuxerStream::Type type) = 0; |
| 43 | 45 |
| 44 // For Type::URL: | 46 // For Type::URL: |
| 45 // Returns the URL of the media to play. This might be an empty URL, and | 47 // Returns the URL parameters of the media to play. Empty URLs are legal, |
| 46 // should be handled appropriately by the caller. | 48 // and should be handled appropriately by the caller. |
| 47 // Other types: | 49 // Other types: |
| 48 // Should not be called. | 50 // Should not be called. |
| 49 virtual GURL GetUrl() const; | 51 virtual MediaUrlParams GetMediaUrlParams() const; |
| 50 | 52 |
| 51 virtual DemuxerStreamProvider::Type GetType() const; | 53 virtual DemuxerStreamProvider::Type GetType() const; |
| 52 | 54 |
| 53 private: | 55 private: |
| 54 DISALLOW_COPY_AND_ASSIGN(DemuxerStreamProvider); | 56 DISALLOW_COPY_AND_ASSIGN(DemuxerStreamProvider); |
| 55 }; | 57 }; |
| 56 | 58 |
| 57 } // namespace media | 59 } // namespace media |
| 58 | 60 |
| 59 #endif // MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_ | 61 #endif // MEDIA_BASE_DEMUXER_STREAM_PROVIDER_H_ |
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