Encrypted Media: No NeedKey if --enable-encrypted-media is not set.

media/filters/ffmpeg_video_decoder.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 "media/filters/ffmpeg_video_decoder.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 138 matching lines @@
 
   if (!stream) {
     status_cb.Run(PIPELINE_ERROR_DECODE);
     return;
   }
 
   demuxer_stream_ = stream;
   statistics_cb_ = statistics_cb;
 
   if (!ConfigureDecoder()) {
-    status_cb.Run(PIPELINE_ERROR_DECODE);
+    status_cb.Run(DECODER_ERROR_NOT_SUPPORTED);
     return;
   }
 
   // Success!
   state_ = kNormal;
   status_cb.Run(PIPELINE_OK);
 }
 
 void FFmpegVideoDecoder::Read(const ReadCB& read_cb) {
   // Complete operation asynchronously on different stack of execution as per
@@ skipping 325 matching lines @@
 }
 
 bool FFmpegVideoDecoder::ConfigureDecoder() {
   const VideoDecoderConfig& config = demuxer_stream_->video_decoder_config();
 
   if (!config.IsValidConfig()) {
     DLOG(ERROR) << "Invalid video stream - " << config.AsHumanReadableString();
     return false;
   }
 
+  if (config.is_encrypted() && !decryptor_) {
+    DLOG(ERROR) << "Encrypted video stream not supported.";
+    return false;
+  }
+
   // Release existing decoder resources if necessary.
   ReleaseFFmpegResources();
 
   // Initialize AVCodecContext structure.
   codec_context_ = avcodec_alloc_context3(NULL);
   VideoDecoderConfigToAVCodecContext(config, codec_context_);
 
   // Enable motion vector search (potentially slow), strong deblocking filter
   // for damaged macroblocks, and set our error detection sensitivity.
   codec_context_->error_concealment = FF_EC_GUESS_MVS | FF_EC_DEBLOCK;
   codec_context_->err_recognition = AV_EF_CAREFUL;
   codec_context_->thread_count = GetThreadCount(codec_context_->codec_id);
   codec_context_->opaque = this;
   codec_context_->flags |= CODEC_FLAG_EMU_EDGE;
   codec_context_->get_buffer = GetVideoBufferImpl;
   codec_context_->release_buffer = ReleaseVideoBufferImpl;
 
   AVCodec* codec = avcodec_find_decoder(codec_context_->codec_id);
   if (!codec || avcodec_open2(codec_context_, codec, NULL) < 0) {
     ReleaseFFmpegResources();
     return false;
   }
 
   av_frame_ = avcodec_alloc_frame();
   return true;
 }
 
 }  // namespace media