Motown: Ffmpeg video decoder

services/media/framework_ffmpeg/ffmpeg_decoder.cc

Index: services/media/framework_ffmpeg/ffmpeg_decoder.cc
diff --git a/services/media/framework_ffmpeg/ffmpeg_decoder.cc b/services/media/framework_ffmpeg/ffmpeg_decoder.cc
index d482e6b2ebcf3005f56c400d714d11f157f5741c..6a5f8682364e09902ebe1cf910c80a6dd3c728dd 100644
--- a/services/media/framework_ffmpeg/ffmpeg_decoder.cc
+++ b/services/media/framework_ffmpeg/ffmpeg_decoder.cc
@@ -16,16 +16,19 @@ Result FfmpegDecoder::Create(const StreamType& stream_type,
 
   AvCodecContextPtr av_codec_context(AvCodecContext::Create(stream_type));
   if (!av_codec_context) {
+    LOG(ERROR) << "couldn't create codec context";
     return Result::kUnsupportedOperation;
   }
 
   AVCodec* ffmpeg_decoder = avcodec_find_decoder(av_codec_context->codec_id);
   if (ffmpeg_decoder == nullptr) {
+    LOG(ERROR) << "couldn't find decoder context";
     return Result::kUnsupportedOperation;
   }
 
   int r = avcodec_open2(av_codec_context.get(), ffmpeg_decoder, nullptr);
   if (r < 0) {
+    LOG(ERROR) << "couldn't open the decoder " << r;
     return Result::kUnknownError;
   }
 
@@ -39,6 +42,7 @@ Result FfmpegDecoder::Create(const StreamType& stream_type,
           new FfmpegVideoDecoder(std::move(av_codec_context)));
       break;
     default:
+      LOG(ERROR) << "unsupported codec type " << av_codec_context->codec_type;
       return Result::kUnsupportedOperation;
   }