RTC Video Encoder: Use capturer timestamp

media/gpu/vaapi_video_encode_accelerator.h

 // Copyright 2014 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.
 
 #ifndef MEDIA_GPU_VAAPI_VIDEO_ENCODE_ACCELERATOR_H_
 #define MEDIA_GPU_VAAPI_VIDEO_ENCODE_ACCELERATOR_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 55 matching lines @@
     scoped_refptr<VASurface> recon_surface;
     // Buffer that will contain output bitstream for this frame.
     VABufferID coded_buffer;
     // Reference surfaces required to encode this picture. We keep references
     // to them here, because we may discard some of them from ref_pic_list*
     // before the HW job is done.
     RefPicList reference_surfaces;
     // True if this job will produce a keyframe. Used to report
     // to BitstreamBufferReady().
     bool keyframe;
+    // Captured timestamp in microseconds.
+    int64_t timestamp;
 
     EncodeJob();
     ~EncodeJob();
   };
 
   // Encoder state.
   enum State {
     kUninitialized,
     kEncoding,
     kError,
@@ skipping 172 matching lines @@
   // thread (it's a member of this class).
   base::WeakPtr<VaapiVideoEncodeAccelerator> weak_this_;
   base::WeakPtrFactory<VaapiVideoEncodeAccelerator> weak_this_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VaapiVideoEncodeAccelerator);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_GPU_VAAPI_VIDEO_ENCODE_ACCELERATOR_H_