64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
// Copyright (c) 2016 The WebM project authors. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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#ifndef SRC_SKIP_CALLBACK_H_
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#define SRC_SKIP_CALLBACK_H_
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#include "webm/callback.h"
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#include "webm/dom_types.h"
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#include "webm/reader.h"
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#include "webm/status.h"
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namespace webm {
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// An implementation of Callback that skips all elements. Every method that
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// yields an action will yield Action::kSkip, and Reader::Skip will be called
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// if the callback ever needs to process data from the byte stream.
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class SkipCallback : public Callback {
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public:
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Status OnElementBegin(const ElementMetadata& /* metadata */,
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Action* action) override {
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*action = Action::kSkip;
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return Status(Status::kOkCompleted);
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}
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Status OnSegmentBegin(const ElementMetadata& /* metadata */,
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Action* action) override {
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*action = Action::kSkip;
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return Status(Status::kOkCompleted);
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}
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Status OnClusterBegin(const ElementMetadata& /* metadata */,
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const Cluster& /* cluster */, Action* action) override {
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*action = Action::kSkip;
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return Status(Status::kOkCompleted);
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}
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Status OnSimpleBlockBegin(const ElementMetadata& /* metadata */,
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const SimpleBlock& /* simple_block */,
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Action* action) override {
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*action = Action::kSkip;
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return Status(Status::kOkCompleted);
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}
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Status OnBlockGroupBegin(const ElementMetadata& /* metadata */,
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Action* action) override {
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*action = Action::kSkip;
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return Status(Status::kOkCompleted);
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}
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Status OnBlockBegin(const ElementMetadata& /* metadata */,
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const Block& /* block */, Action* action) override {
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*action = Action::kSkip;
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return Status(Status::kOkCompleted);
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}
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};
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} // namespace webm
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#endif // SRC_SKIP_CALLBACK_H_
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