Mpeg2TS - estimate duration for video frames.

media/formats/mp2t/es_parser_h264.h

Index: media/formats/mp2t/es_parser_h264.h
diff --git a/media/formats/mp2t/es_parser_h264.h b/media/formats/mp2t/es_parser_h264.h
index bf4f4cc1d9cda586f9e82ceaff509c3868c047b0..8cbfb872a119266dc53e13960555ac1043bb9af8 100644
--- a/media/formats/mp2t/es_parser_h264.h
+++ b/media/formats/mp2t/es_parser_h264.h
@@ -80,6 +80,9 @@ class MEDIA_EXPORT EsParserH264 : NON_EXPORTED_BASE(public EsParser) {
   scoped_ptr<media::OffsetByteQueue> es_queue_;
   std::list<std::pair<int64, TimingDesc> > timing_desc_list_;
 
+  // Duration of the last emitted frame.
+  base::TimeDelta last_frame_duration_;

[acolwell GONE FROM CHROMIUM, 2014/07/03 00:50:58]

Remove? This doesn't appear to be used anywhere.

+
   // H264 parser state.
   // - |current_access_unit_pos_| is pointing to an annexB syncword
   // representing the first NALU of an H264 access unit.
@@ -89,6 +92,11 @@ class MEDIA_EXPORT EsParserH264 : NON_EXPORTED_BASE(public EsParser) {
 
   // Last video decoder config.
   VideoDecoderConfig last_video_decoder_config_;
+
+  // History of frame PTS.
+  std::list<base::TimeDelta> frame_pts_history_;
+
+  DISALLOW_COPY_AND_ASSIGN(EsParserH264);
 };
 
 }  // namespace mp2t