Add 'cbcs' encryption scheme support in Android media.

media/base/android/ndk_media_codec_bridge.cc

 // Copyright 2015 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/android/ndk_media_codec_bridge.h"
 
 #include <media/NdkMediaError.h>
 #include <media/NdkMediaFormat.h>
 
 #include <limits>
@@ skipping 118 matching lines @@
 }
 
 MediaCodecStatus NdkMediaCodecBridge::QueueSecureInputBuffer(
     int index,
     const uint8_t* data,
     size_t data_size,
     const std::vector<char>& key_id,
     const std::vector<char>& iv,
     const SubsampleEntry* subsamples,
     int subsamples_size,
+    const EncryptionScheme& encryption_scheme,
     const base::TimeDelta& presentation_time) {
   if (data_size >
       base::checked_cast<size_t>(std::numeric_limits<int32_t>::max())) {
     return MEDIA_CODEC_ERROR;
   }
   if (key_id.size() > 16 || iv.size())
     return MEDIA_CODEC_ERROR;
   if (data && !FillInputBuffer(index, data, data_size))
     return MEDIA_CODEC_ERROR;
+  if (encryption_scheme.mode() != EncryptionScheme::CIPHER_MODE_AES_CTR ||
+      encryption_scheme.pattern().IsInEffect())
+    return MEDIA_CODEC_ERROR;
 
   int new_subsamples_size = subsamples_size == 0 ? 1 : subsamples_size;
   std::vector<size_t> clear_data, encrypted_data;
   if (subsamples_size == 0) {
     DCHECK(!subsamples);
     clear_data.push_back(0);
     encrypted_data.push_back(data_size);
   } else {
     DCHECK_GT(subsamples_size, 0);
     DCHECK(subsamples);
@@ skipping 85 matching lines @@
     const uint8_t** addr,
     size_t* capacity) {
   const uint8_t* src_data =
       AMediaCodec_getOutputBuffer(media_codec_.get(), index, capacity);
   *addr = src_data + offset;
   *capacity -= offset;
   return MEDIA_CODEC_OK;
 }
 
 }  // namespace media