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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef WebMediaSource_h
     32 #define WebMediaSource_h
     33 
     34 #include "WebCommon.h"
     35 #include "WebTimeRange.h"
     36 #include "WebURL.h"
     37 
     38 namespace blink {
     39 
     40 class WebSourceBuffer;
     41 
     42 class WebMediaSource {
     43 public:
     44     enum AddStatus {
     45         AddStatusOk,
     46         AddStatusNotSupported,
     47         AddStatusReachedIdLimit
     48     };
     49 
     50     enum EndOfStreamStatus {
     51         EndOfStreamStatusNoError,
     52         EndOfStreamStatusNetworkError,
     53         EndOfStreamStatusDecodeError,
     54     };
     55 
     56     enum FrameProcessorChoice {
     57         UseLegacyFrameProcessor,
     58         UseNewFrameProcessor
     59     };
     60 
     61     virtual ~WebMediaSource() { }
     62     // FIXME: Remove addSourceBuffer() that has FrameProcessorChoice, and remove
     63     // the default implementations for addSourceBuffer() once Chromium
     64     // implementation of the addSourceBuffer() with no FrameProcessorChoice has
     65     // landed. See http://crbug.com/249422.
     66     virtual AddStatus addSourceBuffer(const WebString& type, const WebVector<WebString>& codecs, const FrameProcessorChoice, WebSourceBuffer** webSourceBuffer)
     67     {
     68         // This default implementation should never be called for real.
     69         BLINK_ASSERT_NOT_REACHED();
     70         return AddStatusReachedIdLimit;
     71     }
     72     virtual AddStatus addSourceBuffer(const WebString& type, const WebVector<WebString>& codecs, WebSourceBuffer** webSourceBuffer)
     73     {
     74         return addSourceBuffer(type, codecs, WebMediaSource::UseNewFrameProcessor, webSourceBuffer);
     75     }
     76 
     77     virtual double duration() = 0;
     78     virtual void setDuration(double) = 0;
     79     virtual void markEndOfStream(EndOfStreamStatus) = 0;
     80     virtual void unmarkEndOfStream() = 0;
     81 };
     82 
     83 } // namespace blink
     84 
     85 #endif
     86