Ignore calls to Reset() when in error state

media/filters/decoder_stream.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_FILTERS_DECODER_STREAM_H_
 #define MEDIA_FILTERS_DECODER_STREAM_H_
 
 #include <list>
 
 #include "base/callback.h"
@@ skipping 65 matching lines @@
   // |read_cb| is always called asynchronously. This method should only be
   // called after initialization has succeeded and must not be called during
   // pending Reset().
   void Read(const ReadCB& read_cb);
 
   // Resets the decoder, flushes all decoded outputs and/or internal buffers,
   // fires any existing pending read callback and calls |closure| on completion.
   // Note that |closure| is always called asynchronously. This method should
   // only be called after initialization has succeeded and must not be called
   // during pending Reset().
+  // N.B: If the decoder stream has run into an error, calling this method does
+  // not 'reset' it to a normal state.
   void Reset(const base::Closure& closure);
 
   // Returns true if the decoder currently has the ability to decode and return
   // an Output.
   // TODO(rileya): Remove the need for this by refactoring Decoder queueing
   // behavior.
   bool CanReadWithoutStalling() const;
 
   // Returns maximum concurrent decode requests for the current |decoder_|.
   int GetMaxDecodeRequests() const;
@@ skipping 166 matching lines @@
 
 template <>
 int DecoderStream<DemuxerStream::AUDIO>::GetMaxDecodeRequests() const;
 
 typedef DecoderStream<DemuxerStream::VIDEO> VideoFrameStream;
 typedef DecoderStream<DemuxerStream::AUDIO> AudioBufferStream;
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_DECODER_STREAM_H_