mpegvideo_enc.c File Reference

#include "config_components.h"
#include <stdint.h>
#include "libavutil/internal.h"
#include "libavutil/intmath.h"
#include "libavutil/mathematics.h"
#include "libavutil/mem_internal.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "dct.h"
#include "encode.h"
#include "idctdsp.h"
#include "mpeg12.h"
#include "mpeg12data.h"
#include "mpeg12enc.h"
#include "mpegvideo.h"
#include "mpegvideodata.h"
#include "mpegvideoenc.h"
#include "h261enc.h"
#include "h263.h"
#include "h263data.h"
#include "h263enc.h"
#include "mjpegenc_common.h"
#include "mathops.h"
#include "mpegutils.h"
#include "mjpegenc.h"
#include "speedhqenc.h"
#include "msmpeg4enc.h"
#include "pixblockdsp.h"
#include "qpeldsp.h"
#include "faandct.h"
#include "aandcttab.h"
#include "flvenc.h"
#include "mpeg4video.h"
#include "mpeg4videodata.h"
#include "mpeg4videoenc.h"
#include "internal.h"
#include "bytestream.h"
#include "wmv2enc.h"
#include "rv10enc.h"
#include "packet_internal.h"
#include <limits.h>
#include "sp5x.h"

Go to the source code of this file.

Macros
#define	QUANT_BIAS_SHIFT   8
#define	QMAT_SHIFT_MMX   16
#define	QMAT_SHIFT   21
#define	COPY(a)   dst->a= src->a
#define	INTERLACED_DCT(s)
#define	MERGE(field)   dst->field += src->field; src->field=0

Functions
static int	encode_picture (MpegEncContext *s, int picture_number)
static int	dct_quantize_refine (MpegEncContext *s, int16_t *block, int16_t *weight, int16_t *orig, int n, int qscale)
static int	sse_mb (MpegEncContext *s)
static void	denoise_dct_c (MpegEncContext *s, int16_t *block)
static int	dct_quantize_trellis_c (MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
void	ff_convert_matrix (MpegEncContext *s, int(*qmat)[64], uint16_t(*qmat16)[2][64], const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
static void	update_qscale (MpegEncContext *s)
void	ff_write_quant_matrix (PutBitContext *pb, uint16_t *matrix)
void	ff_init_qscale_tab (MpegEncContext *s)
	init s->current_picture.qscale_table from s->lambda_table More...
static void	update_duplicate_context_after_me (MpegEncContext *dst, const MpegEncContext *src)
static void	mpv_encode_init_static (void)
static void	mpv_encode_defaults (MpegEncContext *s)
	Set the given MpegEncContext to defaults for encoding. More...
av_cold int	ff_dct_encode_init (MpegEncContext *s)
av_cold int	ff_mpv_encode_init (AVCodecContext *avctx)
av_cold int	ff_mpv_encode_end (AVCodecContext *avctx)
static int	get_sae (uint8_t *src, int ref, int stride)
static int	get_intra_count (MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride)
static int	alloc_picture (MpegEncContext *s, Picture *pic, int shared)
static int	load_input_picture (MpegEncContext *s, const AVFrame *pic_arg)
static int	skip_check (MpegEncContext *s, Picture *p, Picture *ref)
static int	encode_frame (AVCodecContext *c, AVFrame *frame, AVPacket *pkt)
static int	estimate_best_b_count (MpegEncContext *s)
static int	select_input_picture (MpegEncContext *s)
static void	frame_end (MpegEncContext *s)
static void	update_noise_reduction (MpegEncContext *s)
static int	frame_start (MpegEncContext *s)
int	ff_mpv_encode_picture (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic_arg, int *got_packet)
static void	dct_single_coeff_elimination (MpegEncContext *s, int n, int threshold)
static void	clip_coeffs (MpegEncContext *s, int16_t *block, int last_index)
static void	get_visual_weight (int16_t *weight, uint8_t *ptr, int stride)
static av_always_inline void	encode_mb_internal (MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_width, int mb_block_count, int chroma_x_shift, int chroma_y_shift, int chroma_format)
static av_always_inline void	encode_mb (MpegEncContext *s, int motion_x, int motion_y)
static void	copy_context_before_encode (MpegEncContext *d, const MpegEncContext *s)
static void	copy_context_after_encode (MpegEncContext *d, const MpegEncContext *s)
static void	encode_mb_hq (MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2], int *dmin, int *next_block, int motion_x, int motion_y)
static int	sse (MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride)
static int	pre_estimate_motion_thread (AVCodecContext *c, void *arg)
static int	estimate_motion_thread (AVCodecContext *c, void *arg)
static int	mb_var_thread (AVCodecContext *c, void *arg)
static void	write_slice_end (MpegEncContext *s)
static void	write_mb_info (MpegEncContext *s)
static void	update_mb_info (MpegEncContext *s, int startcode)
int	ff_mpv_reallocate_putbitbuffer (MpegEncContext *s, size_t threshold, size_t size_increase)
static int	encode_thread (AVCodecContext *c, void *arg)
static void	merge_context_after_me (MpegEncContext *dst, MpegEncContext *src)
static void	merge_context_after_encode (MpegEncContext *dst, MpegEncContext *src)
static int	estimate_qp (MpegEncContext *s, int dry_run)
static void	set_frame_distances (MpegEncContext *s)
static void	build_basis (uint8_t *perm)
void	ff_block_permute (int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
	Permute an 8x8 block according to permutation. More...
int	ff_dct_quantize_c (MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)

Variables
static uint8_t	default_mv_penalty [MAX_FCODE+1][MAX_DMV *2+1]
static uint8_t	default_fcode_tab [MAX_MV *2+1]
static const AVOption	mpv_generic_options []
const AVClass	ff_mpv_enc_class
static int16_t	basis [64][64]

Detailed Description

The simplest mpeg encoder (well, it was the simplest!).

Definition in file mpegvideo_enc.c.

Macro Definition Documentation

QUANT_BIAS_SHIFT

#define QUANT_BIAS_SHIFT   8

Definition at line 81 of file mpegvideo_enc.c.

QMAT_SHIFT_MMX

#define QMAT_SHIFT_MMX   16

Definition at line 83 of file mpegvideo_enc.c.

QMAT_SHIFT

#define QMAT_SHIFT   21

Definition at line 84 of file mpegvideo_enc.c.

COPY

#define COPY

(

a

)

dst->a= src->a

INTERLACED_DCT

#define INTERLACED_DCT

(

s

)

Value:

                           ((chroma_format == CHROMA_420 || chroma_format == CHROMA_422) && \
                           (s)->avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT)

MERGE

#define MERGE

(

field

)

dst->field += src->field; src->field=0

Definition at line 3392 of file mpegvideo_enc.c.

Function Documentation

encode_picture()

static int encode_picture ( MpegEncContext *  s, int  picture_number  )

static

Definition at line 3479 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_picture().

dct_quantize_refine()

static int dct_quantize_refine ( MpegEncContext *  s, int16_t *  block, int16_t *  weight, int16_t *  orig, int  n, int  qscale  )

static

Definition at line 4118 of file mpegvideo_enc.c.

Referenced by encode_mb_internal().

sse_mb()

static int sse_mb ( MpegEncContext *  s )

static

Definition at line 2558 of file mpegvideo_enc.c.

Referenced by encode_mb_hq().

denoise_dct_c()

static void denoise_dct_c ( MpegEncContext *  s, int16_t *  block  )

static

Definition at line 3760 of file mpegvideo_enc.c.

Referenced by ff_dct_encode_init().

dct_quantize_trellis_c()

static int dct_quantize_trellis_c ( MpegEncContext *  s, int16_t *  block, int  n, int  qscale, int *  overflow  )

static

Definition at line 3784 of file mpegvideo_enc.c.

Referenced by ff_dct_encode_init().

ff_convert_matrix()

void ff_convert_matrix	(	MpegEncContext *	s,
		int(*)	qmat[64],
		uint16_t(*)	qmat16[2][64],
		const uint16_t *	quant_matrix,
		int	bias,
		int	qmin,
		int	qmax,
		int	intra
	)

Definition at line 108 of file mpegvideo_enc.c.

Referenced by dnxhd_init_qmat(), encode_picture(), and ff_mpv_encode_init().

update_qscale()

static void update_qscale ( MpegEncContext *  s )

inlinestatic

Definition at line 192 of file mpegvideo_enc.c.

Referenced by encode_mb_internal(), encode_picture(), and estimate_qp().

ff_write_quant_matrix()

void ff_write_quant_matrix	(	PutBitContext *	pb,
		uint16_t *	matrix
	)

Definition at line 220 of file mpegvideo_enc.c.

Referenced by mpeg4_encode_vol_header().

ff_init_qscale_tab()

void ff_init_qscale_tab

(

MpegEncContext *

s

)

init s->current_picture.qscale_table from s->lambda_table

Definition at line 236 of file mpegvideo_enc.c.

Referenced by estimate_qp(), and ff_clean_h263_qscales().

update_duplicate_context_after_me()

static void update_duplicate_context_after_me ( MpegEncContext *  dst, const MpegEncContext *  src  )

static

Definition at line 249 of file mpegvideo_enc.c.

Referenced by encode_picture().

mpv_encode_init_static()

static void mpv_encode_init_static ( void  )

static

Definition at line 266 of file mpegvideo_enc.c.

Referenced by mpv_encode_defaults().

mpv_encode_defaults()

static void mpv_encode_defaults ( MpegEncContext *  s )

static

Set the given MpegEncContext to defaults for encoding.

the changed fields will not depend upon the prior state of the MpegEncContext.

Definition at line 276 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_init().

ff_dct_encode_init()

av_cold int ff_dct_encode_init

(

MpegEncContext *

s

)

Definition at line 291 of file mpegvideo_enc.c.

Referenced by dnxhd_encode_init(), and ff_mpv_encode_init().

ff_mpv_encode_init()

av_cold int ff_mpv_encode_init

(

AVCodecContext *

avctx

)

Definition at line 311 of file mpegvideo_enc.c.

Referenced by encode_init(), and wmv2_encode_init().

ff_mpv_encode_end()

av_cold int ff_mpv_encode_end

(

AVCodecContext *

avctx

)

Definition at line 925 of file mpegvideo_enc.c.

Referenced by mjpeg_encode_close().

get_sae()

static int get_sae ( uint8_t *  src, int  ref, int  stride  )

static

Definition at line 956 of file mpegvideo_enc.c.

Referenced by get_intra_count().

get_intra_count()

static int get_intra_count ( MpegEncContext *  s, uint8_t *  src, uint8_t *  ref, int  stride  )

static

Definition at line 970 of file mpegvideo_enc.c.

Referenced by select_input_picture().

alloc_picture()

static int alloc_picture ( MpegEncContext *  s, Picture *  pic, int  shared  )

static

Definition at line 993 of file mpegvideo_enc.c.

Referenced by load_input_picture(), and select_input_picture().

load_input_picture()

static int load_input_picture ( MpegEncContext *  s, const AVFrame *  pic_arg  )

static

Definition at line 1001 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_picture().

skip_check()

static int skip_check ( MpegEncContext *  s, Picture *  p, Picture *  ref  )

static

Definition at line 1152 of file mpegvideo_enc.c.

Referenced by select_input_picture().

encode_frame()

static int encode_frame ( AVCodecContext *  c, AVFrame *  frame, AVPacket *  pkt  )

static

Definition at line 1193 of file mpegvideo_enc.c.

Referenced by estimate_best_b_count().

estimate_best_b_count()

static int estimate_best_b_count ( MpegEncContext *  s )

static

Definition at line 1214 of file mpegvideo_enc.c.

Referenced by select_input_picture().

select_input_picture()

static int select_input_picture ( MpegEncContext *  s )

static

Definition at line 1360 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_picture().

frame_end()

static void frame_end ( MpegEncContext *  s )

static

Definition at line 1533 of file mpegvideo_enc.c.

Referenced by bethsoftvid_decode_frame(), bfi_decode_frame(), decode_bmv_frame(), decode_dds1(), decode_dsw1(), decode_tdlt(), decode_tsw1(), decode_wdlt(), ff_h263_decode_frame(), ff_mpv_encode_picture(), get_duration(), gif_read_packet(), and write_subframes().

update_noise_reduction()

static void update_noise_reduction ( MpegEncContext *  s )

static

Definition at line 1570 of file mpegvideo_enc.c.

Referenced by frame_start().

frame_start()

static int frame_start ( MpegEncContext *  s )

static

Definition at line 1591 of file mpegvideo_enc.c.

Referenced by av_timecode_init(), cavs_decode_frame(), decode_dds1(), decode_dsw1(), decode_tsw1(), ff_mpv_encode_picture(), get_duration(), gif_read_packet(), and scale_internal().

ff_mpv_encode_picture()

int ff_mpv_encode_picture	(	AVCodecContext *	avctx,
		AVPacket *	pkt,
		const AVFrame *	pic_arg,
		int *	got_packet
	)

Definition at line 1662 of file mpegvideo_enc.c.

dct_single_coeff_elimination()

static void dct_single_coeff_elimination ( MpegEncContext *  s, int  n, int  threshold  )

inlinestatic

Definition at line 1903 of file mpegvideo_enc.c.

Referenced by encode_mb_internal().

clip_coeffs()

static void clip_coeffs ( MpegEncContext *  s, int16_t *  block, int  last_index  )

inlinestatic

Definition at line 1959 of file mpegvideo_enc.c.

Referenced by encode_mb_internal().

get_visual_weight()

static void get_visual_weight ( int16_t *  weight, uint8_t *  ptr, int  stride  )

static

Definition at line 1993 of file mpegvideo_enc.c.

Referenced by encode_mb_internal().

encode_mb_internal()

static av_always_inline void encode_mb_internal ( MpegEncContext *  s, int  motion_x, int  motion_y, int  mb_block_height, int  mb_block_width, int  mb_block_count, int  chroma_x_shift, int  chroma_y_shift, int  chroma_format  )

static

Definition at line 2017 of file mpegvideo_enc.c.

Referenced by encode_mb().

encode_mb()

static av_always_inline void encode_mb ( MpegEncContext *  s, int  motion_x, int  motion_y  )

static

Definition at line 2409 of file mpegvideo_enc.c.

Referenced by encode_mb_hq(), and encode_thread().

copy_context_before_encode()

static void copy_context_before_encode ( MpegEncContext *  d, const MpegEncContext *  s  )

inlinestatic

Definition at line 2419 of file mpegvideo_enc.c.

Referenced by encode_mb_hq(), and encode_thread().

copy_context_after_encode()

static void copy_context_after_encode ( MpegEncContext *  d, const MpegEncContext *  s  )

inlinestatic

Definition at line 2447 of file mpegvideo_enc.c.

Referenced by encode_mb_hq(), and encode_thread().

encode_mb_hq()

static void encode_mb_hq ( MpegEncContext *  s, MpegEncContext *  backup, MpegEncContext *  best, PutBitContext  pb[2], PutBitContext  pb2[2], PutBitContext  tex_pb[2], int *  dmin, int *  next_block, int  motion_x, int  motion_y  )

inlinestatic

Definition at line 2486 of file mpegvideo_enc.c.

Referenced by encode_thread().

sse()

static int sse ( MpegEncContext *  s, uint8_t *  src1, uint8_t *  src2, int  w, int  h, int  stride  )

static

Definition at line 2537 of file mpegvideo_enc.c.

Referenced by block_sse(), encode_thread(), ff_ac3dsp_set_downmix_x86(), ff_libwebp_get_frame(), ff_showcqt_init_x86(), ff_vp9dsp_init_16bpp_x86(), ff_vp9dsp_init_x86(), main(), run_psnr(), sse_16width_msa(), sse_4width_msa(), sse_8width_msa(), and sse_mb().

pre_estimate_motion_thread()

static int pre_estimate_motion_thread ( AVCodecContext *  c, void *  arg  )

static

Definition at line 2592 of file mpegvideo_enc.c.

Referenced by encode_picture().

estimate_motion_thread()

static int estimate_motion_thread ( AVCodecContext *  c, void *  arg  )

static

Definition at line 2611 of file mpegvideo_enc.c.

Referenced by encode_picture().

mb_var_thread()

static int mb_var_thread ( AVCodecContext *  c, void *  arg  )

static

Definition at line 2636 of file mpegvideo_enc.c.

Referenced by encode_picture().

write_slice_end()

static void write_slice_end ( MpegEncContext *  s )

static

Definition at line 2659 of file mpegvideo_enc.c.

Referenced by encode_thread().

write_mb_info()

static void write_mb_info ( MpegEncContext *  s )

static

Definition at line 2679 of file mpegvideo_enc.c.

Referenced by update_mb_info().

update_mb_info()

static void update_mb_info ( MpegEncContext *  s, int  startcode  )

static

Definition at line 2699 of file mpegvideo_enc.c.

Referenced by encode_thread().

ff_mpv_reallocate_putbitbuffer()

int ff_mpv_reallocate_putbitbuffer	(	MpegEncContext *	s,
		size_t	threshold,
		size_t	size_increase
	)

Definition at line 2722 of file mpegvideo_enc.c.

Referenced by encode_thread(), and ff_mjpeg_encode_stuffing().

encode_thread()

static int encode_thread ( AVCodecContext *  c, void *  arg  )

static

Definition at line 2756 of file mpegvideo_enc.c.

Referenced by encode_picture().

merge_context_after_me()

static void merge_context_after_me ( MpegEncContext *  dst, MpegEncContext *  src  )

static

Definition at line 3393 of file mpegvideo_enc.c.

Referenced by encode_picture().

merge_context_after_encode()

static void merge_context_after_encode ( MpegEncContext *  dst, MpegEncContext *  src  )

static

Definition at line 3399 of file mpegvideo_enc.c.

Referenced by encode_picture().

estimate_qp()

static int estimate_qp ( MpegEncContext *  s, int  dry_run  )

static

Definition at line 3427 of file mpegvideo_enc.c.

Referenced by encode_picture().

set_frame_distances()

static void set_frame_distances ( MpegEncContext *  s )

static

Definition at line 3465 of file mpegvideo_enc.c.

Referenced by encode_picture().

build_basis()

static void build_basis ( uint8_t *  perm )

static

Definition at line 4099 of file mpegvideo_enc.c.

Referenced by dct_quantize_refine().

ff_block_permute()

void ff_block_permute	(	int16_t *	block,
		uint8_t *	permutation,
		const uint8_t *	scantable,
		int	last
	)

Permute an 8x8 block according to permutation.

Parameters

block	the block which will be permuted according to the given permutation vector
permutation	the permutation vector
last	the last non zero coefficient in scantable order, used to speed the permutation up
scantable	the used scantable, this is only used to speed the permutation up, the block is not (inverse) permutated to scantable order!

Definition at line 4445 of file mpegvideo_enc.c.

Referenced by dnxhd_10bit_dct_quantize(), dnxhd_10bit_dct_quantize_444(), and ff_dct_quantize_c().

ff_dct_quantize_c()

int ff_dct_quantize_c	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale,
		int *	overflow
	)

Definition at line 4470 of file mpegvideo_enc.c.

Referenced by dnxhd_encode_init(), encode_mb_internal(), and ff_dct_encode_init().

Variable Documentation

default_mv_penalty

uint8_t default_mv_penalty[MAX_FCODE+1][MAX_DMV *2+1]

static

Definition at line 92 of file mpegvideo_enc.c.

Referenced by mpv_encode_defaults().

default_fcode_tab

uint8_t default_fcode_tab[MAX_MV *2+1]

static

Definition at line 93 of file mpegvideo_enc.c.

Referenced by mpv_encode_defaults(), and mpv_encode_init_static().

mpv_generic_options

const AVOption mpv_generic_options[]

static

Initial value:

= {
    FF_MPV_COMMON_OPTS
    FF_MPV_COMMON_MOTION_EST_OPTS
    { NULL },
}

Definition at line 95 of file mpegvideo_enc.c.

ff_mpv_enc_class

const AVClass ff_mpv_enc_class

Initial value:

= {
    .class_name = "generic mpegvideo encoder",
    .item_name  = av_default_item_name,
    .option     = mpv_generic_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 101 of file mpegvideo_enc.c.

basis

int16_t basis[64][64]

static

Definition at line 4097 of file mpegvideo_enc.c.

Referenced by add_8x8basis_c(), add_8x8basis_TMPL(), build_basis(), dct_quantize_refine(), ff_tx_gen_split_radix_parity_revtab(), parity_revtab_generator(), try_8x8basis_c(), and try_8x8basis_TMPL().