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-rw-r--r--chromium/media/webm/webm_content_encodings_client.cc265
1 files changed, 0 insertions, 265 deletions
diff --git a/chromium/media/webm/webm_content_encodings_client.cc b/chromium/media/webm/webm_content_encodings_client.cc
deleted file mode 100644
index bcf964ed319..00000000000
--- a/chromium/media/webm/webm_content_encodings_client.cc
+++ /dev/null
@@ -1,265 +0,0 @@
-// Copyright (c) 2012 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/webm/webm_content_encodings_client.h"
-
-#include "base/logging.h"
-#include "base/stl_util.h"
-#include "media/webm/webm_constants.h"
-
-namespace media {
-
-WebMContentEncodingsClient::WebMContentEncodingsClient(const LogCB& log_cb)
- : log_cb_(log_cb),
- content_encryption_encountered_(false),
- content_encodings_ready_(false) {
-}
-
-WebMContentEncodingsClient::~WebMContentEncodingsClient() {
- STLDeleteElements(&content_encodings_);
-}
-
-const ContentEncodings& WebMContentEncodingsClient::content_encodings() const {
- DCHECK(content_encodings_ready_);
- return content_encodings_;
-}
-
-WebMParserClient* WebMContentEncodingsClient::OnListStart(int id) {
- if (id == kWebMIdContentEncodings) {
- DCHECK(!cur_content_encoding_.get());
- DCHECK(!content_encryption_encountered_);
- STLDeleteElements(&content_encodings_);
- content_encodings_ready_ = false;
- return this;
- }
-
- if (id == kWebMIdContentEncoding) {
- DCHECK(!cur_content_encoding_.get());
- DCHECK(!content_encryption_encountered_);
- cur_content_encoding_.reset(new ContentEncoding());
- return this;
- }
-
- if (id == kWebMIdContentEncryption) {
- DCHECK(cur_content_encoding_.get());
- if (content_encryption_encountered_) {
- MEDIA_LOG(log_cb_) << "Unexpected multiple ContentEncryption.";
- return NULL;
- }
- content_encryption_encountered_ = true;
- return this;
- }
-
- if (id == kWebMIdContentEncAESSettings) {
- DCHECK(cur_content_encoding_.get());
- return this;
- }
-
- // This should not happen if WebMListParser is working properly.
- DCHECK(false);
- return NULL;
-}
-
-// Mandatory occurrence restriction is checked in this function. Multiple
-// occurrence restriction is checked in OnUInt and OnBinary.
-bool WebMContentEncodingsClient::OnListEnd(int id) {
- if (id == kWebMIdContentEncodings) {
- // ContentEncoding element is mandatory. Check this!
- if (content_encodings_.empty()) {
- MEDIA_LOG(log_cb_) << "Missing ContentEncoding.";
- return false;
- }
- content_encodings_ready_ = true;
- return true;
- }
-
- if (id == kWebMIdContentEncoding) {
- DCHECK(cur_content_encoding_.get());
-
- //
- // Specify default values to missing mandatory elements.
- //
-
- if (cur_content_encoding_->order() == ContentEncoding::kOrderInvalid) {
- // Default value of encoding order is 0, which should only be used on the
- // first ContentEncoding.
- if (!content_encodings_.empty()) {
- MEDIA_LOG(log_cb_) << "Missing ContentEncodingOrder.";
- return false;
- }
- cur_content_encoding_->set_order(0);
- }
-
- if (cur_content_encoding_->scope() == ContentEncoding::kScopeInvalid)
- cur_content_encoding_->set_scope(ContentEncoding::kScopeAllFrameContents);
-
- if (cur_content_encoding_->type() == ContentEncoding::kTypeInvalid)
- cur_content_encoding_->set_type(ContentEncoding::kTypeCompression);
-
- // Check for elements valid in spec but not supported for now.
- if (cur_content_encoding_->type() == ContentEncoding::kTypeCompression) {
- MEDIA_LOG(log_cb_) << "ContentCompression not supported.";
- return false;
- }
-
- // Enforce mandatory elements without default values.
- DCHECK(cur_content_encoding_->type() == ContentEncoding::kTypeEncryption);
- if (!content_encryption_encountered_) {
- MEDIA_LOG(log_cb_) << "ContentEncodingType is encryption but"
- << " ContentEncryption is missing.";
- return false;
- }
-
- content_encodings_.push_back(cur_content_encoding_.release());
- content_encryption_encountered_ = false;
- return true;
- }
-
- if (id == kWebMIdContentEncryption) {
- DCHECK(cur_content_encoding_.get());
- // Specify default value for elements that are not present.
- if (cur_content_encoding_->encryption_algo() ==
- ContentEncoding::kEncAlgoInvalid) {
- cur_content_encoding_->set_encryption_algo(
- ContentEncoding::kEncAlgoNotEncrypted);
- }
- return true;
- }
-
- if (id == kWebMIdContentEncAESSettings) {
- if (cur_content_encoding_->cipher_mode() ==
- ContentEncoding::kCipherModeInvalid)
- cur_content_encoding_->set_cipher_mode(ContentEncoding::kCipherModeCtr);
- return true;
- }
-
- // This should not happen if WebMListParser is working properly.
- DCHECK(false);
- return false;
-}
-
-// Multiple occurrence restriction and range are checked in this function.
-// Mandatory occurrence restriction is checked in OnListEnd.
-bool WebMContentEncodingsClient::OnUInt(int id, int64 val) {
- DCHECK(cur_content_encoding_.get());
-
- if (id == kWebMIdContentEncodingOrder) {
- if (cur_content_encoding_->order() != ContentEncoding::kOrderInvalid) {
- MEDIA_LOG(log_cb_) << "Unexpected multiple ContentEncodingOrder.";
- return false;
- }
-
- if (val != static_cast<int64>(content_encodings_.size())) {
- // According to the spec, encoding order starts with 0 and counts upwards.
- MEDIA_LOG(log_cb_) << "Unexpected ContentEncodingOrder.";
- return false;
- }
-
- cur_content_encoding_->set_order(val);
- return true;
- }
-
- if (id == kWebMIdContentEncodingScope) {
- if (cur_content_encoding_->scope() != ContentEncoding::kScopeInvalid) {
- MEDIA_LOG(log_cb_) << "Unexpected multiple ContentEncodingScope.";
- return false;
- }
-
- if (val == ContentEncoding::kScopeInvalid ||
- val > ContentEncoding::kScopeMax) {
- MEDIA_LOG(log_cb_) << "Unexpected ContentEncodingScope.";
- return false;
- }
-
- if (val & ContentEncoding::kScopeNextContentEncodingData) {
- MEDIA_LOG(log_cb_) << "Encoded next ContentEncoding is not supported.";
- return false;
- }
-
- cur_content_encoding_->set_scope(static_cast<ContentEncoding::Scope>(val));
- return true;
- }
-
- if (id == kWebMIdContentEncodingType) {
- if (cur_content_encoding_->type() != ContentEncoding::kTypeInvalid) {
- MEDIA_LOG(log_cb_) << "Unexpected multiple ContentEncodingType.";
- return false;
- }
-
- if (val == ContentEncoding::kTypeCompression) {
- MEDIA_LOG(log_cb_) << "ContentCompression not supported.";
- return false;
- }
-
- if (val != ContentEncoding::kTypeEncryption) {
- MEDIA_LOG(log_cb_) << "Unexpected ContentEncodingType " << val << ".";
- return false;
- }
-
- cur_content_encoding_->set_type(static_cast<ContentEncoding::Type>(val));
- return true;
- }
-
- if (id == kWebMIdContentEncAlgo) {
- if (cur_content_encoding_->encryption_algo() !=
- ContentEncoding::kEncAlgoInvalid) {
- MEDIA_LOG(log_cb_) << "Unexpected multiple ContentEncAlgo.";
- return false;
- }
-
- if (val < ContentEncoding::kEncAlgoNotEncrypted ||
- val > ContentEncoding::kEncAlgoAes) {
- MEDIA_LOG(log_cb_) << "Unexpected ContentEncAlgo " << val << ".";
- return false;
- }
-
- cur_content_encoding_->set_encryption_algo(
- static_cast<ContentEncoding::EncryptionAlgo>(val));
- return true;
- }
-
- if (id == kWebMIdAESSettingsCipherMode) {
- if (cur_content_encoding_->cipher_mode() !=
- ContentEncoding::kCipherModeInvalid) {
- MEDIA_LOG(log_cb_) << "Unexpected multiple AESSettingsCipherMode.";
- return false;
- }
-
- if (val != ContentEncoding::kCipherModeCtr) {
- MEDIA_LOG(log_cb_) << "Unexpected AESSettingsCipherMode " << val << ".";
- return false;
- }
-
- cur_content_encoding_->set_cipher_mode(
- static_cast<ContentEncoding::CipherMode>(val));
- return true;
- }
-
- // This should not happen if WebMListParser is working properly.
- DCHECK(false);
- return false;
-}
-
-// Multiple occurrence restriction is checked in this function. Mandatory
-// restriction is checked in OnListEnd.
-bool WebMContentEncodingsClient::OnBinary(int id, const uint8* data, int size) {
- DCHECK(cur_content_encoding_.get());
- DCHECK(data);
- DCHECK_GT(size, 0);
-
- if (id == kWebMIdContentEncKeyID) {
- if (!cur_content_encoding_->encryption_key_id().empty()) {
- MEDIA_LOG(log_cb_) << "Unexpected multiple ContentEncKeyID";
- return false;
- }
- cur_content_encoding_->SetEncryptionKeyId(data, size);
- return true;
- }
-
- // This should not happen if WebMListParser is working properly.
- DCHECK(false);
- return false;
-}
-
-} // namespace media
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