Fix ChunkDemuxer seeks that occur during a partially parsed cluster.

media/base/byte_queue.cc

 // Copyright (c) 2011 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.
 
 #include "media/base/byte_queue.h"
 
 #include "base/logging.h"
 
 namespace media {
 
 // Default starting size for the queue.
 enum { kDefaultQueueSize = 1024 };
 
 ByteQueue::ByteQueue()
     : buffer_(new uint8[kDefaultQueueSize]),
       size_(kDefaultQueueSize),
       offset_(0),
       used_(0) {
 }
 
 ByteQueue::~ByteQueue() {}
 
+void ByteQueue::Reset() {
+  offset_ = 0;
+  used_ = 0;
+}
+
 void ByteQueue::Push(const uint8* data, int size) {
   DCHECK(data);
   DCHECK_GT(size, 0);
 
   size_t size_needed = used_ + size;
 
   // Check to see if we need a bigger buffer.
   if (size_needed > size_) {
     size_t new_size = 2 * size_;
     while (size_needed > new_size && new_size > size_)
@@ skipping 37 matching lines @@
   // Move the offset back to 0 if we have reached the end of the buffer.
   if (offset_ == size_) {
     DCHECK_EQ(used_, 0);
     offset_ = 0;
   }
 }
 
 uint8* ByteQueue::front() const { return buffer_.get() + offset_; }
 
 }  // namespace media