Add CDM video decoder.

webkit/media/crypto/ppapi/clear_key_cdm.cc

 // 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 "webkit/media/crypto/ppapi/clear_key_cdm.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/time.h"
 #include "media/base/decoder_buffer.h"
+#include "webkit/media/crypto/ppapi/ffmpeg_cdm_video_decoder.h"
 
 static const char kClearKeyCdmVersion[] = "0.1.0.0";
 
 static scoped_refptr<media::DecoderBuffer> CopyDecoderBufferFrom(
     const cdm::InputBuffer& input_buffer) {
   DCHECK(input_buffer.data);
   // TODO(tomfinegan): Get rid of this copy.
   scoped_refptr<media::DecoderBuffer> output_buffer =
       media::DecoderBuffer::CopyFrom(input_buffer.data, input_buffer.data_size);
 
@@ skipping 209 matching lines @@
          buffer->GetData(),
          data_size);
 
   decrypted_block->set_timestamp(buffer->GetTimestamp().InMicroseconds());
   return cdm::kSuccess;
 }
 
 cdm::Status ClearKeyCdm::InitializeVideoDecoder(
     const cdm::VideoDecoderConfig& video_decoder_config) {
 #if !defined(CLEAR_KEY_CDM_USE_FAKE_VIDEO_DECODER)
-  NOTIMPLEMENTED();
-  return cdm::kSessionError;
+  if (!video_decoder_)
+    video_decoder_.reset(new webkit_media::FFmpegCdmVideoDecoder(allocator_));
+
+  if (!video_decoder_->Initialize(video_decoder_config))
+    return cdm::kSessionError;
 #else
   video_size_ = video_decoder_config.coded_size;
+#endif  // CLEAR_KEY_CDM_USE_FAKE_VIDEO_DECODER
   return cdm::kSuccess;
-#endif  // CLEAR_KEY_CDM_USE_FAKE_VIDEO_DECODER
 }
 
-void ClearKeyCdm::ResetDecoder(cdm::StreamType) {
-  NOTIMPLEMENTED();
+void ClearKeyCdm::ResetDecoder(cdm::StreamType decoder_type) {
+  DCHECK(decoder_type == cdm::kStreamTypeVideo);
+  video_decoder_->Reset();
 }
 
-void ClearKeyCdm::DeinitializeDecoder(cdm::StreamType) {
-  NOTIMPLEMENTED();
+void ClearKeyCdm::DeinitializeDecoder(cdm::StreamType decoder_type) {
+  DCHECK(decoder_type == cdm::kStreamTypeVideo);
+  video_decoder_->Deinitialize();
 }
 
 cdm::Status ClearKeyCdm::DecryptAndDecodeFrame(
     const cdm::InputBuffer& encrypted_buffer,
-    cdm::VideoFrame* video_frame) {
+    cdm::VideoFrame* decoded_frame) {
   if (!encrypted_buffer.data) {
-    video_frame->set_format(cdm::kEmptyVideoFrame);
+    decoded_frame->set_format(cdm::kEmptyVideoFrame);
     return cdm::kSuccess;
   }
 
   scoped_refptr<media::DecoderBuffer> decoder_buffer =
       CopyDecoderBufferFrom(encrypted_buffer);
 
   // Callback is called synchronously, so we can use variables on the stack.
   media::Decryptor::Status status;
   scoped_refptr<media::DecoderBuffer> buffer;
   decryptor_.Decrypt(media::Decryptor::kVideo,
                      decoder_buffer,
                      base::Bind(&CopyDecryptResults, &status, &buffer));
 
   if (status == media::Decryptor::kError)
     return cdm::kDecryptError;
 
   if (status == media::Decryptor::kNoKey)
     return cdm::kNoKey;
 
 #if !defined(CLEAR_KEY_CDM_USE_FAKE_VIDEO_DECODER)
-  NOTIMPLEMENTED();
-  return cdm::kDecodeError;
+  DCHECK(status == media::Decryptor::kSuccess);
+  DCHECK(buffer);
+  return video_decoder_->DecodeFrame(buffer.get()->GetData(),
+                                     buffer->GetDataSize(),
+                                     encrypted_buffer.timestamp,
+                                     decoded_frame);
 #else
   GenerateFakeVideoFrame(decoder_buffer->GetTimestamp(), video_frame);
   return cdm::kSuccess;
 #endif  // CLEAR_KEY_CDM_USE_FAKE_VIDEO_DECODER
 }
 
 #if defined(CLEAR_KEY_CDM_USE_FAKE_VIDEO_DECODER)
 void ClearKeyCdm::GenerateFakeVideoFrame(base::TimeDelta timestamp,
                                          cdm::VideoFrame* video_frame) {
   // Choose non-zero alignment and padding on purpose for testing.
@@ skipping 29 matching lines @@
 
   static unsigned char color = 0;
   color += 10;
 
   memset(reinterpret_cast<void*>(video_frame->frame_buffer()->data()),
          color, frame_size);
 }
 #endif  // CLEAR_KEY_CDM_USE_FAKE_VIDEO_DECODER
 
 }  // namespace webkit_media