Allow ffmpeg to process individual NALU rather than require frames.

media/filters/ffmpeg_video_decoder.h

Index: media/filters/ffmpeg_video_decoder.h
diff --git a/media/filters/ffmpeg_video_decoder.h b/media/filters/ffmpeg_video_decoder.h
index ced6ddf2eabc8e23b6b6b5bfea25643202a6e8b8..f180b5ffb1f3dd80dd1b52bea61506eb7ed91950 100644
--- a/media/filters/ffmpeg_video_decoder.h
+++ b/media/filters/ffmpeg_video_decoder.h
@@ -31,6 +31,10 @@ class MEDIA_EXPORT FFmpegVideoDecoder : public VideoDecoder {
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
   virtual ~FFmpegVideoDecoder();
 
+  // Allow decoding of individual NALU. Entire frames are required by default.
+  // Disables low-latency mode. Must be called before Initialize().
+  void set_decode_nalus(bool decode_nalus) { decode_nalus_ = decode_nalus; }
+
   // VideoDecoder implementation.
   virtual void Initialize(const VideoDecoderConfig& config,
                           bool low_delay,
@@ -84,6 +88,8 @@ class MEDIA_EXPORT FFmpegVideoDecoder : public VideoDecoder {
 
   VideoFramePool frame_pool_;
 
+  bool decode_nalus_;
+
   DISALLOW_COPY_AND_ASSIGN(FFmpegVideoDecoder);
 };