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

#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/motion_vector.h"
#include "libavutil/timer.h"
#include "avcodec.h"
#include "blockdsp.h"
#include "h264chroma.h"
#include "idctdsp.h"
#include "internal.h"
#include "mathops.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpegvideodata.h"
#include "mjpegenc.h"
#include "msmpeg4.h"
#include "qpeldsp.h"
#include "thread.h"
#include "wmv2.h"
#include <limits.h>

Macros
#define	MAKE_WRITABLE(table)

#define	UPDATE_TABLE(table)

#define	COPY(a) bak->a = src->a

#define	UPDATE_PICTURE(pic)

#define	REBASE_PICTURE(pic, new_ctx, old_ctx)

#define	COLOR(theta, r)

Functions
static void	dct_unquantize_mpeg1_intra_c (MpegEncContext s, int16_t block, int n, int qscale)

static void	dct_unquantize_mpeg1_inter_c (MpegEncContext s, int16_t block, int n, int qscale)

static void	dct_unquantize_mpeg2_intra_c (MpegEncContext s, int16_t block, int n, int qscale)

static void	dct_unquantize_mpeg2_intra_bitexact (MpegEncContext s, int16_t block, int n, int qscale)

static void	dct_unquantize_mpeg2_inter_c (MpegEncContext s, int16_t block, int n, int qscale)

static void	dct_unquantize_h263_intra_c (MpegEncContext s, int16_t block, int n, int qscale)

static void	dct_unquantize_h263_inter_c (MpegEncContext s, int16_t block, int n, int qscale)

static void	mpeg_er_decode_mb (void opaque, int ref, int mv_dir, int mv_type, int(mv)[2][4][2], int mb_x, int mb_y, int mb_intra, int mb_skipped)

static void	gray16 (uint8_t dst, const uint8_t src, ptrdiff_t linesize, int h)

static void	gray8 (uint8_t dst, const uint8_t src, ptrdiff_t linesize, int h)

static av_cold int	dct_init (MpegEncContext *s)

av_cold void	ff_mpv_idct_init (MpegEncContext *s)

int	ff_mpeg_framesize_alloc (AVCodecContext avctx, MotionEstContext me, ScratchpadContext *sc, int linesize)

static int	alloc_frame_buffer (AVCodecContext avctx, Picture pic, MotionEstContext me, ScratchpadContext sc, int chroma_x_shift, int chroma_y_shift, int linesize, int uvlinesize)
	Allocate a frame buffer. More...

void	ff_free_picture_tables (Picture *pic)

static int	alloc_picture_tables (AVCodecContext avctx, Picture pic, int encoding, int out_format, int mb_stride, int mb_width, int mb_height, int b8_stride)

static int	make_tables_writable (Picture *pic)

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

int	ff_alloc_picture (AVCodecContext avctx, Picture pic, MotionEstContext me, ScratchpadContext sc, int shared, int encoding, int chroma_x_shift, int chroma_y_shift, int out_format, int mb_stride, int mb_width, int mb_height, int b8_stride, ptrdiff_t linesize, ptrdiff_t uvlinesize)
	Allocate a Picture. More...

void	ff_mpeg_unref_picture (AVCodecContext avctx, Picture pic)
	Deallocate a picture. More...

static int	update_picture_tables (Picture dst, Picture src)

int	ff_mpeg_ref_picture (AVCodecContext avctx, Picture dst, Picture *src)

static int	init_duplicate_context (MpegEncContext *s)

static void	free_duplicate_context (MpegEncContext *s)

static void	backup_duplicate_context (MpegEncContext bak, MpegEncContext src)

int	ff_update_duplicate_context (MpegEncContext dst, MpegEncContext src)

int	ff_mpeg_update_thread_context (AVCodecContext dst, const AVCodecContext src)

void	ff_mpv_common_defaults (MpegEncContext *s)
	Set the given MpegEncContext to common defaults (same for encoding and decoding). More...

void	ff_mpv_decode_defaults (MpegEncContext *s)
	Set the given MpegEncContext to defaults for decoding. More...

void	ff_mpv_decode_init (MpegEncContext s, AVCodecContext avctx)

static int	init_er (MpegEncContext *s)

static int	init_context_frame (MpegEncContext *s)
	Initialize and allocates MpegEncContext fields dependent on the resolution. More...

av_cold int	ff_mpv_common_init (MpegEncContext *s)
	init common structure for both encoder and decoder. More...

static void	free_context_frame (MpegEncContext *s)
	Frees and resets MpegEncContext fields depending on the resolution. More...

int	ff_mpv_common_frame_size_change (MpegEncContext *s)

void	ff_mpv_common_end (MpegEncContext *s)

static void	release_unused_pictures (AVCodecContext avctx, Picture picture)

static int	pic_is_unused (Picture *pic)

static int	find_unused_picture (AVCodecContext avctx, Picture picture, int shared)

int	ff_find_unused_picture (AVCodecContext avctx, Picture picture, int shared)

static void	gray_frame (AVFrame *frame)

int	ff_mpv_frame_start (MpegEncContext s, AVCodecContext avctx)
	generic function called after decoding the header and before a frame is decoded. More...

void	ff_mpv_frame_end (MpegEncContext *s)

static int	clip_line (int sx, int sy, int ex, int ey, int maxx)

static void	draw_line (uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color)
	Draw a line from (ex, ey) -> (sx, sy). More...

static void	draw_arrow (uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color, int tail, int direction)
	Draw an arrow from (ex, ey) -> (sx, sy). More...

static int	add_mb (AVMotionVector *mb, uint32_t mb_type, int dst_x, int dst_y, int src_x, int src_y, int direction)

void	ff_print_debug_info2 (AVCodecContext avctx, AVFrame pict, uint8_t mbskip_table, uint32_t mbtype_table, int8_t qscale_table, int16_t(motion_val[2])[2], int *low_delay, int mb_width, int mb_height, int mb_stride, int quarter_sample)
	Print debugging info for the given picture. More...

void	ff_print_debug_info (MpegEncContext s, Picture p, AVFrame *pict)

int	ff_mpv_export_qp_table (MpegEncContext s, AVFrame f, Picture *p, int qp_type)

static int	hpel_motion_lowres (MpegEncContext s, uint8_t dest, uint8_t src, int field_based, int field_select, int src_x, int src_y, int width, int height, ptrdiff_t stride, int h_edge_pos, int v_edge_pos, int w, int h, h264_chroma_mc_func pix_op, int motion_x, int motion_y)

static av_always_inline void	mpeg_motion_lowres (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, int field_based, int bottom_field, int field_select, uint8_t *ref_picture, h264_chroma_mc_func pix_op, int motion_x, int motion_y, int h, int mb_y)

static void	chroma_4mv_motion_lowres (MpegEncContext s, uint8_t dest_cb, uint8_t dest_cr, uint8_t ref_picture, h264_chroma_mc_func pix_op, int mx, int my)

static void	MPV_motion_lowres (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, int dir, uint8_t *ref_picture, h264_chroma_mc_func pix_op)
	motion compensation of a single macroblock More...

int	ff_mpv_lowest_referenced_row (MpegEncContext *s, int dir)
	find the lowest MB row referenced in the MVs More...

static void	put_dct (MpegEncContext s, int16_t block, int i, uint8_t *dest, int line_size, int qscale)

static void	add_dct (MpegEncContext s, int16_t block, int i, uint8_t *dest, int line_size)

static void	add_dequant_dct (MpegEncContext s, int16_t block, int i, uint8_t *dest, int line_size, int qscale)

void	ff_clean_intra_table_entries (MpegEncContext *s)
	Clean dc, ac, coded_block for the current non-intra MB. More...

static av_always_inline void	mpv_decode_mb_internal (MpegEncContext *s, int16_t block[12][64], int lowres_flag, int is_mpeg12)

void	ff_mpv_decode_mb (MpegEncContext *s, int16_t block[12][64])

void	ff_mpeg_draw_horiz_band (MpegEncContext *s, int y, int h)

void	ff_init_block_index (MpegEncContext *s)

void	ff_block_permute (int16_t block, uint8_t permutation, const uint8_t *scantable, int last)
	Permute an 8x8 block. More...

void	ff_mpeg_flush (AVCodecContext *avctx)

void	ff_set_qscale (MpegEncContext *s, int qscale)
	set qscale and update qscale dependent variables. More...

void	ff_mpv_report_decode_progress (MpegEncContext *s)

Detailed Description

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

Definition in file mpegvideo.c.

Macro Definition Documentation

#define MAKE_WRITABLE ( table )

Value:

do {\
    if (pic->table &&\
       (ret = av_buffer_make_writable(&pic->table)) < 0)\
    return ret;\
} while (0)

Referenced by make_tables_writable().

#define UPDATE_TABLE ( table )

Value:

do {\
    if (src->table &&\
        (!dst->table || dst->table->buffer != src->table->buffer)) {\
        av_buffer_unref(&dst->table);\
        dst->table = av_buffer_ref(src->table);\
        if (!dst->table) {\
            ff_free_picture_tables(dst);\
            return AVERROR(ENOMEM);\
        }\
    }\
} while (0)

Referenced by update_picture_tables().

#define COPY ( a ) bak->a = src->a

Referenced by backup_duplicate_context().

#define UPDATE_PICTURE ( pic )

Value:

do {\
    ff_mpeg_unref_picture(s->avctx, &s->pic);\
    if (s1->pic.f && s1->pic.f->buf[0])\
        ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
    else\
        ret = update_picture_tables(&s->pic, &s1->pic);\
    if (ret < 0)\
        return ret;\
} while (0)

Referenced by ff_mpeg_update_thread_context().

#define REBASE_PICTURE	(	pic,
		new_ctx,
		old_ctx
	)

Value:

((pic && pic >= old_ctx->picture &&                                       \
      pic < old_ctx->picture + MAX_PICTURE_COUNT) ?                           \
        &new_ctx->picture[pic - old_ctx->picture] : NULL)

Referenced by ff_mpeg_update_thread_context().

#define COLOR	(	theta,
		r
	)

Value:

u = (int)(128 + r * cos(theta * 3.141592 / 180)); \

v = (int)(128 + r * sin(theta * 3.141592 / 180));

v

float v

Definition: avf_showspectrum.c:96

r

const char * r

Definition: vf_curves.c:107

u

float u

Definition: avf_showspectrum.c:96

Referenced by ff_print_debug_info2().

Function Documentation

static void dct_unquantize_mpeg1_intra_c	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale
	)

static

Definition at line 52 of file mpegvideo.c.

Referenced by dct_init().

static void dct_unquantize_mpeg1_inter_c	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale
	)

static

Definition at line 81 of file mpegvideo.c.

Referenced by dct_init().

static void dct_unquantize_mpeg2_intra_c	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale
	)

static

Definition at line 110 of file mpegvideo.c.

Referenced by dct_init().

static void dct_unquantize_mpeg2_intra_bitexact	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale
	)

static

Definition at line 137 of file mpegvideo.c.

Referenced by dct_init().

static void dct_unquantize_mpeg2_inter_c	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale
	)

static

Definition at line 168 of file mpegvideo.c.

Referenced by dct_init().

static void dct_unquantize_h263_intra_c	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale
	)

static

Definition at line 199 of file mpegvideo.c.

Referenced by dct_init().

static void dct_unquantize_h263_inter_c	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale
	)

static

Definition at line 233 of file mpegvideo.c.

Referenced by dct_init().

static void mpeg_er_decode_mb	(	void *	opaque,
		int	ref,
		int	mv_dir,
		int	mv_type,
		int(*)	mv[2][4][2],
		int	mb_x,
		int	mb_y,
		int	mb_intra,
		int	mb_skipped
	)

static

Definition at line 259 of file mpegvideo.c.

Referenced by init_er().

static void gray16	(	uint8_t *	dst,
		const uint8_t *	src,
		ptrdiff_t	linesize,
		int	h
	)

static

Definition at line 288 of file mpegvideo.c.

Referenced by dct_init().

static void gray8	(	uint8_t *	dst,
		const uint8_t *	src,
		ptrdiff_t	linesize,
		int	h
	)

static

Definition at line 294 of file mpegvideo.c.

Referenced by dct_init().

static av_cold int dct_init ( MpegEncContext * s )

static

Definition at line 301 of file mpegvideo.c.

Referenced by ff_mpv_common_init().

av_cold void ff_mpv_idct_init ( MpegEncContext * s )

Definition at line 346 of file mpegvideo.c.

Referenced by dnxhd_encode_init(), ff_h263_decode_frame(), ff_h263_decode_init(), ff_mpeg4_workaround_bugs(), ff_mpeg_update_thread_context(), ff_mpv_encode_init(), ff_rv34_decode_init(), ff_rv34_decode_init_thread_copy(), h261_decode_frame(), mpeg_decode_init(), rv10_decode_init(), and vcr2_init_sequence().

int ff_mpeg_framesize_alloc	(	AVCodecContext *	avctx,
		MotionEstContext *	me,
		ScratchpadContext *	sc,
		int	linesize
	)

Definition at line 364 of file mpegvideo.c.

Referenced by alloc_frame_buffer(), ff_mpeg_update_thread_context(), and ff_update_duplicate_context().

static int alloc_frame_buffer	(	AVCodecContext *	avctx,
		Picture *	pic,
		MotionEstContext *	me,
		ScratchpadContext *	sc,
		int	chroma_x_shift,
		int	chroma_y_shift,
		int	linesize,
		int	uvlinesize
	)

static

Allocate a frame buffer.

Definition at line 402 of file mpegvideo.c.

Referenced by ff_alloc_picture().

void ff_free_picture_tables ( Picture * pic )

Definition at line 485 of file mpegvideo.c.

Referenced by ff_alloc_picture(), ff_find_unused_picture(), ff_mpeg_unref_picture(), ff_mpv_common_end(), and ff_mpv_encode_end().

static int alloc_picture_tables	(	AVCodecContext *	avctx,
		Picture *	pic,
		int	encoding,
		int	out_format,
		int	mb_stride,
		int	mb_width,
		int	mb_height,
		int	b8_stride
	)

static

Definition at line 505 of file mpegvideo.c.

Referenced by ff_alloc_picture().

static int make_tables_writable ( Picture * pic )

static

Definition at line 548 of file mpegvideo.c.

Referenced by ff_alloc_picture().

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

static

Definition at line 573 of file mpegvideo.c.

Referenced by ff_mpv_frame_start().

int ff_alloc_picture	(	AVCodecContext *	avctx,
		Picture *	pic,
		MotionEstContext *	me,
		ScratchpadContext *	sc,
		int	shared,
		int	encoding,
		int	chroma_x_shift,
		int	chroma_y_shift,
		int	out_format,
		int	mb_stride,
		int	mb_width,
		int	mb_height,
		int	b8_stride,
		ptrdiff_t *	linesize,
		ptrdiff_t *	uvlinesize
	)

Allocate a Picture.

The pixels are allocated/set by calling get_buffer() if shared = 0

Definition at line 585 of file mpegvideo.c.

Referenced by alloc_picture().

void ff_mpeg_unref_picture	(	AVCodecContext *	avctx,
		Picture *	pic
	)

Deallocate a picture.

Definition at line 648 of file mpegvideo.c.

Referenced by alloc_frame_buffer(), ff_alloc_picture(), ff_find_unused_picture(), ff_mpeg_flush(), ff_mpeg_ref_picture(), ff_mpeg_update_thread_context(), ff_mpv_common_end(), ff_mpv_encode_end(), ff_mpv_encode_picture(), ff_mpv_frame_start(), frame_start(), release_unused_pictures(), and select_input_picture().

static int update_picture_tables	(	Picture *	dst,
		Picture *	src
	)

static

Definition at line 670 of file mpegvideo.c.

Referenced by ff_mpeg_ref_picture().

int ff_mpeg_ref_picture	(	AVCodecContext *	avctx,
		Picture *	dst,
		Picture *	src
	)

Definition at line 715 of file mpegvideo.c.

Referenced by ff_mpeg_update_thread_context(), ff_mpv_frame_start(), frame_start(), and select_input_picture().

static int init_duplicate_context ( MpegEncContext * s )

static

Definition at line 753 of file mpegvideo.c.

Referenced by ff_mpv_common_frame_size_change(), and ff_mpv_common_init().

static void free_duplicate_context ( MpegEncContext * s )

static

Definition at line 805 of file mpegvideo.c.

Referenced by ff_mpv_common_end(), and ff_mpv_common_frame_size_change().

static void backup_duplicate_context	(	MpegEncContext *	bak,
		MpegEncContext *	src
	)

static

Definition at line 825 of file mpegvideo.c.

Referenced by ff_update_duplicate_context().

int ff_update_duplicate_context	(	MpegEncContext *	dst,
		MpegEncContext *	src
	)

Definition at line 852 of file mpegvideo.c.

Referenced by decode_chunks(), and encode_picture().

int ff_mpeg_update_thread_context	(	AVCodecContext *	dst,
		const AVCodecContext *	src
	)

Definition at line 880 of file mpegvideo.c.

Referenced by ff_rv34_decode_update_thread_context(), mpeg4_update_thread_context(), and mpeg_decode_update_thread_context().

void ff_mpv_common_defaults ( MpegEncContext * s )

Set the given MpegEncContext to common defaults (same for encoding and decoding).

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

Definition at line 1031 of file mpegvideo.c.

Referenced by ff_mpv_decode_defaults(), and mpv_encode_defaults().

void ff_mpv_decode_defaults ( MpegEncContext * s )

Set the given MpegEncContext to defaults for decoding.

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

Definition at line 1054 of file mpegvideo.c.

Referenced by ff_h263_decode_init(), ff_rv34_decode_init(), h261_decode_init(), mpeg_decode_init(), and rv10_decode_init().

void ff_mpv_decode_init	(	MpegEncContext *	s,
		AVCodecContext *	avctx
	)

Definition at line 1059 of file mpegvideo.c.

Referenced by ff_h263_decode_init(), ff_rv34_decode_init(), h261_decode_init(), mpeg_decode_init(), and rv10_decode_init().

static int init_er ( MpegEncContext * s )

static

Definition at line 1071 of file mpegvideo.c.

Referenced by init_context_frame().

static int init_context_frame ( MpegEncContext * s )

static

Initialize and allocates MpegEncContext fields dependent on the resolution.

Definition at line 1110 of file mpegvideo.c.

Referenced by ff_mpv_common_frame_size_change(), and ff_mpv_common_init().

av_cold int ff_mpv_common_init ( MpegEncContext * s )

init common structure for both encoder and decoder.

this assumes that some variables like width/height are already set

Definition at line 1234 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), ff_h263_decode_init(), ff_mpeg_update_thread_context(), ff_mpv_encode_init(), ff_rv34_decode_init(), ff_rv34_decode_init_thread_copy(), h261_decode_frame(), rv10_decode_init(), rv20_decode_picture_header(), svq1_encode_init(), and vcr2_init_sequence().

static void free_context_frame ( MpegEncContext * s )

static

Frees and resets MpegEncContext fields depending on the resolution.

Is used during resolution changes to avoid a full reinitialization of the codec.

Definition at line 1346 of file mpegvideo.c.

Referenced by ff_mpv_common_end(), and ff_mpv_common_frame_size_change().

int ff_mpv_common_frame_size_change ( MpegEncContext * s )

Definition at line 1395 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), ff_mpeg_update_thread_context(), ff_rv34_decode_frame(), and ff_rv34_decode_update_thread_context().

void ff_mpv_common_end ( MpegEncContext * s )

Definition at line 1474 of file mpegvideo.c.

Referenced by ff_h263_decode_end(), ff_mpv_common_frame_size_change(), ff_mpv_common_init(), ff_mpv_encode_end(), ff_rv34_decode_end(), ff_rv34_decode_init(), ff_rv34_decode_init_thread_copy(), ff_vc1_decode_end(), h261_decode_end(), h261_decode_frame(), mpeg_decode_end(), rv10_decode_end(), rv20_decode_picture_header(), svq1_encode_end(), vc1_decode_frame(), and vcr2_init_sequence().

static void release_unused_pictures	(	AVCodecContext *	avctx,
		Picture *	picture
	)

static

Definition at line 1524 of file mpegvideo.c.

Referenced by ff_mpv_frame_start().

static int pic_is_unused ( Picture * pic )

inlinestatic

Definition at line 1535 of file mpegvideo.c.

Referenced by find_unused_picture().

static int find_unused_picture	(	AVCodecContext *	avctx,
		Picture *	picture,
		int	shared
	)

static

Definition at line 1544 of file mpegvideo.c.

Referenced by ff_find_unused_picture().

int ff_find_unused_picture	(	AVCodecContext *	avctx,
		Picture *	picture,
		int	shared
	)

Definition at line 1577 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), ff_mpv_frame_start(), load_input_picture(), and select_input_picture().

static void gray_frame ( AVFrame * frame )

static

Definition at line 1591 of file mpegvideo.c.

Referenced by ff_mpv_frame_start().

int ff_mpv_frame_start	(	MpegEncContext *	s,
		AVCodecContext *	avctx
	)

generic function called after decoding the header and before a frame is decoded.

Definition at line 1611 of file mpegvideo.c.

Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_rv34_decode_frame(), h261_decode_frame(), mpeg_field_start(), rv10_decode_packet(), and vc1_decode_frame().

void ff_mpv_frame_end ( MpegEncContext * s )

Definition at line 1838 of file mpegvideo.c.

Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_rv34_decode_frame(), finish_frame(), h261_decode_frame(), rv10_decode_frame(), rv10_decode_packet(), slice_end(), and vc1_decode_frame().

static int clip_line	(	int *	sx,
		int *	sy,
		int *	ex,
		int *	ey,
		int	maxx
	)

static

Definition at line 1848 of file mpegvideo.c.

Referenced by draw_line().

static void draw_line	(	uint8_t *	buf,
		int	sx,
		int	sy,
		int	ex,
		int	ey,
		int	w,
		int	h,
		int	stride,
		int	color
	)

static

Draw a line from (ex, ey) -> (sx, sy).

Parameters

w	width of the image
h	height of the image
stride	stride/linesize of the image
color	color of the arrow

Definition at line 1877 of file mpegvideo.c.

Referenced by draw_arrow().

static void draw_arrow	(	uint8_t *	buf,
		int	sx,
		int	sy,
		int	ex,
		int	ey,
		int	w,
		int	h,
		int	stride,
		int	color,
		int	tail,
		int	direction
	)

static

Draw an arrow from (ex, ey) -> (sx, sy).

Parameters

w	width of the image
h	height of the image
stride	stride/linesize of the image
color	color of the arrow

Definition at line 1935 of file mpegvideo.c.

Referenced by ff_print_debug_info2().

static int add_mb	(	AVMotionVector *	mb,
		uint32_t	mb_type,
		int	dst_x,
		int	dst_y,
		int	src_x,
		int	src_y,
		int	direction
	)

static

Definition at line 1974 of file mpegvideo.c.

Referenced by ff_print_debug_info2().

void ff_print_debug_info2	(	AVCodecContext *	avctx,
		AVFrame *	pict,
		uint8_t *	mbskip_table,
		uint32_t *	mbtype_table,
		int8_t *	qscale_table,
		int16_t(*[2])	motion_val[2],
		int *	low_delay,
		int	mb_width,
		int	mb_height,
		int	mb_stride,
		int	quarter_sample
	)

Print debugging info for the given picture.

Definition at line 1993 of file mpegvideo.c.

Referenced by ff_print_debug_info(), and h264_decode_frame().

void ff_print_debug_info	(	MpegEncContext *	s,
		Picture *	p,
		AVFrame *	pict
	)

Definition at line 2370 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), finish_frame(), h261_decode_frame(), rv10_decode_frame(), slice_end(), and vc1_decode_frame().

int ff_mpv_export_qp_table	(	MpegEncContext *	s,
		AVFrame *	f,
		Picture *	p,
		int	qp_type
	)

Definition at line 2377 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), finish_frame(), rv10_decode_frame(), and slice_end().

static int hpel_motion_lowres	(	MpegEncContext *	s,
		uint8_t *	dest,
		uint8_t *	src,
		int	field_based,
		int	field_select,
		int	src_x,
		int	src_y,
		int	width,
		int	height,
		ptrdiff_t	stride,
		int	h_edge_pos,
		int	v_edge_pos,
		int	w,
		int	h,
		h264_chroma_mc_func *	pix_op,
		int	motion_x,
		int	motion_y
	)

inlinestatic

Definition at line 2389 of file mpegvideo.c.

Referenced by MPV_motion_lowres().

static av_always_inline void mpeg_motion_lowres	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		int	field_based,
		int	bottom_field,
		int	field_select,
		uint8_t **	ref_picture,
		h264_chroma_mc_func *	pix_op,
		int	motion_x,
		int	motion_y,
		int	h,
		int	mb_y
	)

static

Definition at line 2436 of file mpegvideo.c.

Referenced by MPV_motion_lowres().

static void chroma_4mv_motion_lowres	(	MpegEncContext *	s,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		uint8_t **	ref_picture,
		h264_chroma_mc_func *	pix_op,
		int	mx,
		int	my
	)

inlinestatic

Definition at line 2573 of file mpegvideo.c.

Referenced by MPV_motion_lowres().

static void MPV_motion_lowres	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		int	dir,
		uint8_t **	ref_picture,
		h264_chroma_mc_func *	pix_op
	)

inlinestatic

motion compensation of a single macroblock

Parameters

s	context
dest_y	luma destination pointer
dest_cb	chroma cb/u destination pointer
dest_cr	chroma cr/v destination pointer
dir	direction (0->forward, 1->backward)
ref_picture	array[3] of pointers to the 3 planes of the reference picture
pix_op	halfpel motion compensation function (average or put normally) the motion vectors are taken from s->mv and the MV type from s->mv_type

Definition at line 2641 of file mpegvideo.c.

Referenced by mpv_decode_mb_internal().

int ff_mpv_lowest_referenced_row	(	MpegEncContext *	s,
		int	dir
	)

find the lowest MB row referenced in the MVs

Definition at line 2775 of file mpegvideo.c.

Referenced by mpv_decode_mb_internal().

static void put_dct	(	MpegEncContext *	s,
		int16_t *	block,
		int	i,
		uint8_t *	dest,
		int	line_size,
		int	qscale
	)

inlinestatic

Definition at line 2811 of file mpegvideo.c.

Referenced by mpv_decode_mb_internal().

static void add_dct	(	MpegEncContext *	s,
		int16_t *	block,
		int	i,
		uint8_t *	dest,
		int	line_size
	)

inlinestatic

Definition at line 2819 of file mpegvideo.c.

Referenced by mpv_decode_mb_internal().

static void add_dequant_dct	(	MpegEncContext *	s,
		int16_t *	block,
		int	i,
		uint8_t *	dest,
		int	line_size,
		int	qscale
	)

inlinestatic

Definition at line 2827 of file mpegvideo.c.

Referenced by mpv_decode_mb_internal().

void ff_clean_intra_table_entries ( MpegEncContext * s )

Clean dc, ac, coded_block for the current non-intra MB.

Definition at line 2840 of file mpegvideo.c.

Referenced by encode_thread(), mpeg4_decode_partition_a(), and mpv_decode_mb_internal().

static av_always_inline void mpv_decode_mb_internal	(	MpegEncContext *	s,
		int16_t	block[12][64],
		int	lowres_flag,
		int	is_mpeg12
	)

static

Definition at line 2881 of file mpegvideo.c.

Referenced by ff_mpv_decode_mb().

void ff_mpv_decode_mb	(	MpegEncContext *	s,
		int16_t	block[12][64]
	)

Definition at line 3129 of file mpegvideo.c.

Referenced by decode_slice(), encode_mb_hq(), encode_thread(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg_decode_slice(), mpeg_er_decode_mb(), and rv10_decode_packet().

void ff_mpeg_draw_horiz_band	(	MpegEncContext *	s,
		int	y,
		int	h
	)

Definition at line 3141 of file mpegvideo.c.

Referenced by decode_slice(), dxva2_mpeg2_end_frame(), dxva2_vc1_end_frame(), ff_intrax8_decode_picture(), ff_xvmc_decode_mb(), ff_xvmc_field_end(), mpeg_decode_slice(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

void ff_init_block_index ( MpegEncContext * s )

Definition at line 3148 of file mpegvideo.c.

Referenced by decode_slice(), encode_thread(), estimate_motion_thread(), ff_h261_reorder_mb_index(), h261_decode_mb(), h261_decode_mb_skipped(), init_block_index(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg_decode_slice(), mpeg_er_decode_mb(), rv10_decode_packet(), and rv34_decode_slice().

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

Permute an 8x8 block.

permute block according to permuatation.

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 3188 of file mpegvideo.c.

Referenced by ff_dct_quantize_c().

void ff_mpeg_flush ( AVCodecContext * avctx )

Definition at line 3209 of file mpegvideo.c.

Referenced by decode_wmv9(), and flush().

void ff_set_qscale	(	MpegEncContext *	s,
		int	qscale
	)

set qscale and update qscale dependent variables.

Definition at line 3240 of file mpegvideo.c.

Referenced by decode_slice(), encode_mb_internal(), encode_thread(), ff_h261_encode_mb(), h261_decode_gob(), h261_decode_mb(), h263_decode_dquant(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg4_decode_partitioned_mb(), and rv10_decode_packet().

void ff_mpv_report_decode_progress ( MpegEncContext * s )

Definition at line 3254 of file mpegvideo.c.

Referenced by decode_slice(), and mpeg_decode_slice().

Macros

Functions

Detailed Description

Macro Definition Documentation

Function Documentation