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ratectrl.c 24.60 KiB
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/*
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 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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 *
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 *  Use of this source code is governed by a BSD-style license
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 *  that can be found in the LICENSE file in the root of the source
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 *  tree. An additional intellectual property rights grant can be found
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 *  in the file PATENTS.  All contributing project authors may
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 *  be found in the AUTHORS file in the root of the source tree.
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 */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include <assert.h>
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#include "math.h"
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#include "vp8/common/common.h"
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#include "ratectrl.h"
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#include "vp8/common/entropymode.h"
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#include "vpx_mem/vpx_mem.h"
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#include "vp8/common/systemdependent.h"
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#include "encodemv.h"
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#define MIN_BPB_FACTOR          0.005
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#define MAX_BPB_FACTOR          50
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extern const MB_PREDICTION_MODE vp8_mode_order[MAX_MODES];
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extern const MV_REFERENCE_FRAME vp8_ref_frame_order[MAX_MODES];
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#ifdef MODE_STATS
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extern unsigned int y_modes[VP8_YMODES];
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extern unsigned int uv_modes[VP8_UV_MODES];
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extern unsigned int b_modes[B_MODE_COUNT];
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extern unsigned int inter_y_modes[MB_MODE_COUNT];
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extern unsigned int inter_uv_modes[VP8_UV_MODES];
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extern unsigned int inter_b_modes[B_MODE_COUNT];
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#endif
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// Bits Per MB at different Q (Multiplied by 512)
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#define BPER_MB_NORMBITS    9
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// % adjustment to target kf size based on seperation from previous frame
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static const int kf_boost_seperation_adjustment[16] =
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{
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    30,   40,   50,   55,   60,   65,   70,   75,
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    80,   85,   90,   95,  100,  100,  100,  100,
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};
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static const int gf_adjust_table[101] =
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{
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    100,
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    115, 130, 145, 160, 175, 190, 200, 210, 220, 230,
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    240, 260, 270, 280, 290, 300, 310, 320, 330, 340,
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    350, 360, 370, 380, 390, 400, 400, 400, 400, 400,
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    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
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    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
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    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
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    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
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    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
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    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
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    400, 400, 400, 400, 400, 400, 400, 400, 400, 400,
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};
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static const int gf_intra_usage_adjustment[20] =