ratecontrol.c File Reference

#include "libavutil/attributes.h"
#include "libavutil/internal.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "ratecontrol.h"
#include "mpegvideoenc.h"
#include "libavutil/eval.h"

Go to the source code of this file.

Functions
void	ff_write_pass1_stats (MPVMainEncContext *const m)
static AVRational	get_fpsQ (AVCodecContext *avctx)
static double	get_fps (AVCodecContext *avctx)
static double	qp2bits (const RateControlEntry *rce, double qp)
static double	qp2bits_cb (void *rce, double qp)
static double	bits2qp (const RateControlEntry *rce, double bits)
static double	bits2qp_cb (void *rce, double qp)
static double	get_diff_limited_q (MPVMainEncContext *m, const RateControlEntry *rce, double q)
static void	get_qminmax (int *qmin_ret, int *qmax_ret, MPVMainEncContext *const m, int pict_type)
	Get the qmin & qmax for pict_type. More...
static double	modify_qscale (MPVMainEncContext *const m, const RateControlEntry *rce, double q, int frame_num)
static double	get_qscale (MPVMainEncContext *const m, RateControlEntry *rce, double rate_factor, int frame_num)
	Modify the bitrate curve from pass1 for one frame. More...
static int	init_pass2 (MPVMainEncContext *const m)
av_cold int	ff_rate_control_init (MPVMainEncContext *const m)
av_cold void	ff_rate_control_uninit (RateControlContext *rcc)
int	ff_vbv_update (MPVMainEncContext *m, int frame_size)
static double	predict_size (Predictor *p, double q, double var)
static void	update_predictor (Predictor *p, double q, double var, double size)
static void	adaptive_quantization (RateControlContext *const rcc, MPVMainEncContext *const m, double q)
void	ff_get_2pass_fcode (MPVMainEncContext *const m)
float	ff_rate_estimate_qscale (MPVMainEncContext *const m, int dry_run)

Detailed Description

Rate control for video encoders.

Definition in file ratecontrol.c.

Function Documentation

ff_write_pass1_stats()

void ff_write_pass1_stats

(

MPVMainEncContext *const

m

)

Definition at line 37 of file ratecontrol.c.

Referenced by encode_frame(), and ff_mpv_encode_picture().

get_fpsQ()

static AVRational get_fpsQ ( AVCodecContext *  avctx )

static

Definition at line 59 of file ratecontrol.c.

Referenced by get_fps(), and init_pass2().

get_fps()

static double get_fps ( AVCodecContext *  avctx )

static

Definition at line 67 of file ratecontrol.c.

Referenced by ff_rate_control_init(), ff_rate_estimate_qscale(), ff_vbv_update(), and modify_qscale().

qp2bits()

static double qp2bits ( const RateControlEntry *  rce, double  qp  )

inlinestatic

Definition at line 72 of file ratecontrol.c.

Referenced by get_qscale(), init_pass2(), and qp2bits_cb().

qp2bits_cb()

static double qp2bits_cb ( void *  rce, double  qp  )

static

Definition at line 80 of file ratecontrol.c.

Referenced by ff_rate_control_init().

bits2qp()

static double bits2qp ( const RateControlEntry *  rce, double  bits  )

inlinestatic

Definition at line 85 of file ratecontrol.c.

Referenced by bits2qp_cb(), get_qscale(), and modify_qscale().

bits2qp_cb()

static double bits2qp_cb ( void *  rce, double  qp  )

static

Definition at line 93 of file ratecontrol.c.

Referenced by ff_rate_control_init().

get_diff_limited_q()

static double get_diff_limited_q ( MPVMainEncContext *  m, const RateControlEntry *  rce, double  q  )

static

Definition at line 98 of file ratecontrol.c.

Referenced by ff_rate_estimate_qscale(), and init_pass2().

get_qminmax()

static void get_qminmax ( int *  qmin_ret, int *  qmax_ret, MPVMainEncContext *const  m, int  pict_type  )

static

Get the qmin & qmax for pict_type.

Definition at line 138 of file ratecontrol.c.

Referenced by ff_rate_estimate_qscale(), and modify_qscale().

modify_qscale()

static double modify_qscale ( MPVMainEncContext *const  m, const RateControlEntry *  rce, double  q, int  frame_num  )

static

Definition at line 167 of file ratecontrol.c.

Referenced by ff_rate_estimate_qscale(), and init_pass2().

get_qscale()

static double get_qscale ( MPVMainEncContext *const  m, RateControlEntry *  rce, double  rate_factor, int  frame_num  )

static

Modify the bitrate curve from pass1 for one frame.

Definition at line 259 of file ratecontrol.c.

Referenced by ff_rate_control_init(), ff_rate_estimate_qscale(), and init_pass2().

init_pass2()

static int init_pass2 ( MPVMainEncContext *const  m )

static

Definition at line 333 of file ratecontrol.c.

Referenced by ff_rate_control_init().

ff_rate_control_init()

av_cold int ff_rate_control_init

(

MPVMainEncContext *const

m

)

Definition at line 496 of file ratecontrol.c.

Referenced by encode_init(), and ff_mpv_encode_init().

ff_rate_control_uninit()

av_cold void ff_rate_control_uninit

(

RateControlContext *

rcc

)

Definition at line 709 of file ratecontrol.c.

Referenced by encode_end(), and ff_mpv_encode_end().

ff_vbv_update()

int ff_vbv_update	(	MPVMainEncContext *	m,
		int	frame_size
	)

Definition at line 718 of file ratecontrol.c.

Referenced by ff_mpv_encode_picture(), init_pass2(), and set_bframe_chain_length().

predict_size()

static double predict_size ( Predictor *  p, double  q, double  var  )

static

Definition at line 762 of file ratecontrol.c.

Referenced by ff_rate_estimate_qscale().

update_predictor()

static void update_predictor ( Predictor *  p, double  q, double  var, double  size  )

static

Definition at line 767 of file ratecontrol.c.

Referenced by ff_rate_estimate_qscale().

adaptive_quantization()

static void adaptive_quantization ( RateControlContext *const  rcc, MPVMainEncContext *const  m, double  q  )

static

Definition at line 779 of file ratecontrol.c.

Referenced by ff_rate_estimate_qscale().

ff_get_2pass_fcode()

void ff_get_2pass_fcode

(

MPVMainEncContext *const

m

)

Definition at line 896 of file ratecontrol.c.

Referenced by encode_picture().

ff_rate_estimate_qscale()

float ff_rate_estimate_qscale	(	MPVMainEncContext *const	m,
		int	dry_run
	)

Definition at line 908 of file ratecontrol.c.

Referenced by encode_frame(), estimate_qp(), and ratecontrol_1pass().