#include <limits.h>
#include "config_components.h"
#include "libavutil/avassert.h"
#include "libavutil/emms.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/video_enc_params.h"
#include "avcodec.h"
#include "decode.h"
#include "h264chroma.h"
#include "internal.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpegvideodec.h"
#include "mpeg4videodec.h"
#include "thread.h"
#include "threadframe.h"
#include "wmv2dec.h"
#include "mpv_reconstruct_mb_template.c"

Macros
#define	UPDATE_PICTURE(pic)

#define	REBASE_PICTURE(pic, new_ctx, old_ctx)

#define	IS_ENCODER 0

Functions
void	ff_mpv_decode_init (MpegEncContext s, AVCodecContext avctx)
	Initialize the given MpegEncContext for decoding. More...

int	ff_mpeg_update_thread_context (AVCodecContext dst, const AVCodecContext src)

int	ff_mpv_common_frame_size_change (MpegEncContext *s)

static int	alloc_picture (MpegEncContext s, Picture *picp, int reference)

static int av_cold	alloc_dummy_frame (MpegEncContext s, Picture *picp)

static void	color_frame (AVFrame *frame, int luma)

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)

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

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

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

void	ff_mpeg_flush (AVCodecContext *avctx)

void	ff_mpv_report_decode_progress (MpegEncContext *s)

static int	hpel_motion_lowres (MpegEncContext s, uint8_t dest, const 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, const 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 const ref_picture, const 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 const ref_picture, const 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 const ref_picture, const h264_chroma_mc_func *pix_op)
	motion compensation of a single macroblock More...

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

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

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

Macro Definition Documentation

◆ UPDATE_PICTURE

#define UPDATE_PICTURE ( pic )

Value:

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

◆ REBASE_PICTURE

#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)

◆ IS_ENCODER

#define IS_ENCODER 0

Definition at line 967 of file mpegvideo_dec.c.

Function Documentation

◆ ff_mpv_decode_init()

void ff_mpv_decode_init	(	MpegEncContext *	s,
		AVCodecContext *	avctx
	)

Initialize the given MpegEncContext for decoding.

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

Definition at line 45 of file mpegvideo_dec.c.

Referenced by ff_h263_decode_init(), ff_rv34_decode_init(), ff_vc1_decode_init(), h261_decode_init(), ipu_decode_init(), mpeg_decode_init(), and rv10_decode_init().

◆ ff_mpeg_update_thread_context()

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

Definition at line 62 of file mpegvideo_dec.c.

Referenced by ff_rv34_decode_update_thread_context().

◆ ff_mpv_common_frame_size_change()

int ff_mpv_common_frame_size_change ( MpegEncContext * s )

Definition at line 190 of file mpegvideo_dec.c.

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

◆ alloc_picture()

static int alloc_picture	(	MpegEncContext *	s,
		Picture **	picp,
		int	reference
	)

static

Definition at line 238 of file mpegvideo_dec.c.

Referenced by alloc_dummy_frame(), and ff_mpv_frame_start().

◆ alloc_dummy_frame()

static int av_cold alloc_dummy_frame	(	MpegEncContext *	s,
		Picture **	picp
	)

static

Definition at line 286 of file mpegvideo_dec.c.

Referenced by ff_mpv_frame_start().

◆ color_frame()

static void color_frame	(	AVFrame *	frame,
		int	luma
	)

static

Definition at line 301 of file mpegvideo_dec.c.

Referenced by ff_mpv_frame_start().

◆ 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 323 of file mpegvideo_dec.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().

◆ ff_mpv_frame_end()

void ff_mpv_frame_end ( MpegEncContext * s )

Definition at line 452 of file mpegvideo_dec.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().

◆ ff_print_debug_info()

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

Definition at line 460 of file mpegvideo_dec.c.

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

◆ ff_mpv_export_qp_table()

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

Definition at line 467 of file mpegvideo_dec.c.

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

◆ ff_mpeg_draw_horiz_band()

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

Definition at line 497 of file mpegvideo_dec.c.

Referenced by d3d12va_mpeg2_end_frame(), decode_slice(), dxva2_mpeg2_end_frame(), mpeg_decode_slice(), vaapi_mpeg2_end_frame(), and vaapi_mpeg4_end_frame().

◆ ff_mpeg_flush()

void ff_mpeg_flush ( AVCodecContext * avctx )

Definition at line 505 of file mpegvideo_dec.c.

Referenced by decode_wmv9(), and flush().

◆ ff_mpv_report_decode_progress()

void ff_mpv_report_decode_progress ( MpegEncContext * s )

Definition at line 526 of file mpegvideo_dec.c.

Referenced by decode_slice(), and mpeg_decode_slice().

◆ hpel_motion_lowres()

static int hpel_motion_lowres	(	MpegEncContext *	s,
		uint8_t *	dest,
		const 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,
		const h264_chroma_mc_func *	pix_op,
		int	motion_x,
		int	motion_y
	)

inlinestatic

Definition at line 533 of file mpegvideo_dec.c.

Referenced by MPV_motion_lowres().

◆ mpeg_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 const	ref_picture,
		const h264_chroma_mc_func *	pix_op,
		int	motion_x,
		int	motion_y,
		int	h,
		int	mb_y
	)

static

Definition at line 580 of file mpegvideo_dec.c.

Referenced by MPV_motion_lowres().

◆ chroma_4mv_motion_lowres()

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

inlinestatic

Definition at line 719 of file mpegvideo_dec.c.

Referenced by MPV_motion_lowres().

◆ 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 const	ref_picture,
		const 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 787 of file mpegvideo_dec.c.

Referenced by mpv_reconstruct_mb_internal().

◆ lowest_referenced_row()

static int lowest_referenced_row	(	MpegEncContext *	s,
		int	dir
	)

static

find the lowest MB row referenced in the MVs

Definition at line 923 of file mpegvideo_dec.c.

Referenced by mpv_reconstruct_mb_internal().

◆ add_dct()

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

inlinestatic

Definition at line 959 of file mpegvideo_dec.c.

Referenced by mpv_reconstruct_mb_internal().

◆ ff_mpv_reconstruct_mb()

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

Definition at line 970 of file mpegvideo_dec.c.

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

Macros

Functions

Macro Definition Documentation

◆ UPDATE_PICTURE

◆ REBASE_PICTURE

◆ IS_ENCODER

Function Documentation

◆ ff_mpv_decode_init()

◆ ff_mpeg_update_thread_context()

◆ ff_mpv_common_frame_size_change()

◆ alloc_picture()

◆ alloc_dummy_frame()

◆ color_frame()

◆ ff_mpv_frame_start()

◆ ff_mpv_frame_end()

◆ ff_print_debug_info()

◆ ff_mpv_export_qp_table()

◆ ff_mpeg_draw_horiz_band()

◆ ff_mpeg_flush()

◆ ff_mpv_report_decode_progress()

◆ hpel_motion_lowres()

◆ mpeg_motion_lowres()

◆ chroma_4mv_motion_lowres()

◆ MPV_motion_lowres()

◆ lowest_referenced_row()

◆ add_dct()

◆ ff_mpv_reconstruct_mb()