Tighten up media::DecoderBuffer API contract for end of stream buffers.

media/filters/ffmpeg_audio_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_audio_decoder.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/message_loop_proxy.h"
@@ skipping 333 matching lines @@
   output_timestamp_helper_->SetBaseTimestamp(kNoTimestamp());
   last_input_timestamp_ = kNoTimestamp();
   output_bytes_to_drop_ = 0;
 }
 
 void FFmpegAudioDecoder::RunDecodeLoop(
     const scoped_refptr<DecoderBuffer>& input,
     bool skip_eos_append) {
   AVPacket packet;
   av_init_packet(&packet);
-  packet.data = const_cast<uint8*>(input->GetData());
-  packet.size = input->GetDataSize();
+  if (input->IsEndOfStream()) {
+    packet.data = NULL;
+    packet.size = 0;
+  } else {
+    packet.data = const_cast<uint8*>(input->GetData());
+    packet.size = input->GetDataSize();
+  }
 
   // Each audio packet may contain several frames, so we must call the decoder
   // until we've exhausted the packet.  Regardless of the packet size we always
   // want to hand it to the decoder at least once, otherwise we would end up
   // skipping end of stream packets since they have a size of zero.
   do {
     // Reset frame to default values.
     avcodec_get_frame_defaults(av_frame_);
 
     int frame_decoded = 0;
@@ skipping 124 matching lines @@
     // Decoding finished successfully, update statistics.
     if (result > 0) {
       PipelineStatistics statistics;
       statistics.audio_bytes_decoded = result;
       statistics_cb_.Run(statistics);
     }
   } while (packet.size > 0);
 }
 
 }  // namespace media