vpx/vp8/encoder/mr_dissim.h
Yunqing Wang 4066c8b205 multi-res: add drop_frame support
Added drop_frame support in multi-resolution encoder.

If one frame is dropped at a lower-resolution level, the next
upper-resolution level encoder needs to encode that frame
independently without any lower-resolution level motion
information.

Another issue is that if one frame is dropped at some but not all
resolution levels, a frame after that one may use different set
of reference frames at different resolution levels. This reference
frame asynchronization could degrade motion search precision in
upper-resolution level encoding, which uses lower-resolution level
motion result. This change compares the lower-resolution and upper-
resolution level's reference frames. If they are not the same, the
upper-resolution level encoder can not use lower-resolution level
motion result.

Change-Id: I61afa4f313630e75b7cbdd5742e230e8724a988a
2012-07-26 08:36:53 -07:00

21 lines
654 B
C

/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef __INC_MR_DISSIM_H
#define __INC_MR_DISSIM_H
#include "vpx_config.h"
extern void vp8_cal_low_res_mb_cols(VP8_COMP *cpi);
extern void vp8_cal_dissimilarity(VP8_COMP *cpi);
extern void vp8_store_drop_frame_info(VP8_COMP *cpi);
#endif