#include <stdint.h>
#include "libavutil/frame.h"
#include "avcodec.h"
#include "version.h"

Macros
#define	FRAME_SKIPPED 100
	Return value for header parsers if frame is not coded. More...

#define	PICT_TOP_FIELD 1

#define	PICT_BOTTOM_FIELD 2

#define	PICT_FRAME 3

#define	DELAYED_PIC_REF 4
	Value of Picture.reference when Picture is not a reference picture, but is held for delayed output. More...

#define	MAX_MB_BYTES (30 * 16 * 16 * 3 / 8 + 120)

#define	MAX_FCODE 7

#define	MB_TYPE_INTRA4x4 (1 << 0)

#define	MB_TYPE_INTRA16x16 (1 << 1)

#define	MB_TYPE_INTRA_PCM (1 << 2)

#define	MB_TYPE_16x16 (1 << 3)

#define	MB_TYPE_16x8 (1 << 4)

#define	MB_TYPE_8x16 (1 << 5)

#define	MB_TYPE_8x8 (1 << 6)

#define	MB_TYPE_INTERLACED (1 << 7)

#define	MB_TYPE_DIRECT2 (1 << 8)

#define	MB_TYPE_ACPRED (1 << 9)

#define	MB_TYPE_GMC (1 << 10)

#define	MB_TYPE_SKIP (1 << 11)

#define	MB_TYPE_P0L0 (1 << 12)

#define	MB_TYPE_P1L0 (1 << 13)

#define	MB_TYPE_P0L1 (1 << 14)

#define	MB_TYPE_P1L1 (1 << 15)

#define	MB_TYPE_L0 (MB_TYPE_P0L0 \| MB_TYPE_P1L0)

#define	MB_TYPE_L1 (MB_TYPE_P0L1 \| MB_TYPE_P1L1)

#define	MB_TYPE_L0L1 (MB_TYPE_L0 \| MB_TYPE_L1)

#define	MB_TYPE_QUANT (1 << 16)

#define	MB_TYPE_CBP (1 << 17)

#define	MB_TYPE_INTRA MB_TYPE_INTRA4x4

#define	IS_INTRA4x4(a) ((a) & MB_TYPE_INTRA4x4)

#define	IS_INTRA16x16(a) ((a) & MB_TYPE_INTRA16x16)

#define	IS_PCM(a) ((a) & MB_TYPE_INTRA_PCM)

#define	IS_INTRA(a) ((a) & 7)

#define	IS_INTER(a)

#define	IS_SKIP(a) ((a) & MB_TYPE_SKIP)

#define	IS_INTRA_PCM(a) ((a) & MB_TYPE_INTRA_PCM)

#define	IS_INTERLACED(a) ((a) & MB_TYPE_INTERLACED)

#define	IS_DIRECT(a) ((a) & MB_TYPE_DIRECT2)

#define	IS_GMC(a) ((a) & MB_TYPE_GMC)

#define	IS_16X16(a) ((a) & MB_TYPE_16x16)

#define	IS_16X8(a) ((a) & MB_TYPE_16x8)

#define	IS_8X16(a) ((a) & MB_TYPE_8x16)

#define	IS_8X8(a) ((a) & MB_TYPE_8x8)

#define	IS_SUB_8X8(a) ((a) & MB_TYPE_16x16)

#define	IS_SUB_8X4(a) ((a) & MB_TYPE_16x8)

#define	IS_SUB_4X8(a) ((a) & MB_TYPE_8x16)

#define	IS_SUB_4X4(a) ((a) & MB_TYPE_8x8)

#define	IS_ACPRED(a) ((a) & MB_TYPE_ACPRED)

#define	IS_QUANT(a) ((a) & MB_TYPE_QUANT)

#define	IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0 << ((part) + 2 * (list))))

#define	USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0 \| MB_TYPE_P1L0) << (2 * (list))))

#define	HAS_CBP(a) ((a) & MB_TYPE_CBP)

#define	CANDIDATE_MB_TYPE_INTRA (1 << 0)

#define	CANDIDATE_MB_TYPE_INTER (1 << 1)

#define	CANDIDATE_MB_TYPE_INTER4V (1 << 2)

#define	CANDIDATE_MB_TYPE_SKIPPED (1 << 3)

#define	CANDIDATE_MB_TYPE_DIRECT (1 << 4)

#define	CANDIDATE_MB_TYPE_FORWARD (1 << 5)

#define	CANDIDATE_MB_TYPE_BACKWARD (1 << 6)

#define	CANDIDATE_MB_TYPE_BIDIR (1 << 7)

#define	CANDIDATE_MB_TYPE_INTER_I (1 << 8)

#define	CANDIDATE_MB_TYPE_FORWARD_I (1 << 9)

#define	CANDIDATE_MB_TYPE_BACKWARD_I (1 << 10)

#define	CANDIDATE_MB_TYPE_BIDIR_I (1 << 11)

#define	CANDIDATE_MB_TYPE_DIRECT0 (1 << 12)

#define	INPLACE_OFFSET 16

Enumerations
enum	OutputFormat { FMT_MPEG1, FMT_H261, FMT_H263, FMT_MJPEG }

Functions
void	ff_draw_horiz_band (AVCodecContext avctx, AVFrame cur, AVFrame *last, int y, int h, int picture_structure, int first_field, int low_delay)
	Draw a horizontal band if supported. More...

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...

Macro Definition Documentation

◆ FRAME_SKIPPED

#define FRAME_SKIPPED 100

Return value for header parsers if frame is not coded.

Definition at line 34 of file mpegutils.h.

◆ PICT_TOP_FIELD

#define PICT_TOP_FIELD 1

Definition at line 37 of file mpegutils.h.

◆ PICT_BOTTOM_FIELD

#define PICT_BOTTOM_FIELD 2

Definition at line 38 of file mpegutils.h.

◆ PICT_FRAME

#define PICT_FRAME 3

Definition at line 39 of file mpegutils.h.

◆ DELAYED_PIC_REF

#define DELAYED_PIC_REF 4

Value of Picture.reference when Picture is not a reference picture, but is held for delayed output.

Definition at line 45 of file mpegutils.h.

◆ MAX_MB_BYTES

#define MAX_MB_BYTES (30 * 16 * 16 * 3 / 8 + 120)

Definition at line 47 of file mpegutils.h.

◆ MAX_FCODE

#define MAX_FCODE 7

Definition at line 48 of file mpegutils.h.

◆ MB_TYPE_INTRA4x4

#define MB_TYPE_INTRA4x4 (1 << 0)

Definition at line 51 of file mpegutils.h.

◆ MB_TYPE_INTRA16x16

#define MB_TYPE_INTRA16x16 (1 << 1)

Definition at line 52 of file mpegutils.h.

◆ MB_TYPE_INTRA_PCM

#define MB_TYPE_INTRA_PCM (1 << 2)

Definition at line 53 of file mpegutils.h.

◆ MB_TYPE_16x16

#define MB_TYPE_16x16 (1 << 3)

Definition at line 54 of file mpegutils.h.

◆ MB_TYPE_16x8

#define MB_TYPE_16x8 (1 << 4)

Definition at line 55 of file mpegutils.h.

◆ MB_TYPE_8x16

#define MB_TYPE_8x16 (1 << 5)

Definition at line 56 of file mpegutils.h.

◆ MB_TYPE_8x8

#define MB_TYPE_8x8 (1 << 6)

Definition at line 57 of file mpegutils.h.

◆ MB_TYPE_INTERLACED

#define MB_TYPE_INTERLACED (1 << 7)

Definition at line 58 of file mpegutils.h.

◆ MB_TYPE_DIRECT2

#define MB_TYPE_DIRECT2 (1 << 8)

Definition at line 59 of file mpegutils.h.

◆ MB_TYPE_ACPRED

#define MB_TYPE_ACPRED (1 << 9)

Definition at line 60 of file mpegutils.h.

◆ MB_TYPE_GMC

#define MB_TYPE_GMC (1 << 10)

Definition at line 61 of file mpegutils.h.

◆ MB_TYPE_SKIP

#define MB_TYPE_SKIP (1 << 11)

Definition at line 62 of file mpegutils.h.

◆ MB_TYPE_P0L0

#define MB_TYPE_P0L0 (1 << 12)

Definition at line 63 of file mpegutils.h.

◆ MB_TYPE_P1L0

#define MB_TYPE_P1L0 (1 << 13)

Definition at line 64 of file mpegutils.h.

◆ MB_TYPE_P0L1

#define MB_TYPE_P0L1 (1 << 14)

Definition at line 65 of file mpegutils.h.

◆ MB_TYPE_P1L1

#define MB_TYPE_P1L1 (1 << 15)

Definition at line 66 of file mpegutils.h.

◆ MB_TYPE_L0

#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)

Definition at line 67 of file mpegutils.h.

◆ MB_TYPE_L1

#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)

Definition at line 68 of file mpegutils.h.

◆ MB_TYPE_L0L1

#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)

Definition at line 69 of file mpegutils.h.

◆ MB_TYPE_QUANT

#define MB_TYPE_QUANT (1 << 16)

Definition at line 70 of file mpegutils.h.

◆ MB_TYPE_CBP

#define MB_TYPE_CBP (1 << 17)

Definition at line 71 of file mpegutils.h.

◆ MB_TYPE_INTRA

#define MB_TYPE_INTRA MB_TYPE_INTRA4x4

Definition at line 73 of file mpegutils.h.

◆ IS_INTRA4x4

#define IS_INTRA4x4 ( a ) ((a) & MB_TYPE_INTRA4x4)

Definition at line 75 of file mpegutils.h.

◆ IS_INTRA16x16

#define IS_INTRA16x16 ( a ) ((a) & MB_TYPE_INTRA16x16)

Definition at line 76 of file mpegutils.h.

◆ IS_PCM

#define IS_PCM ( a ) ((a) & MB_TYPE_INTRA_PCM)

Definition at line 77 of file mpegutils.h.

◆ IS_INTRA

#define IS_INTRA ( a ) ((a) & 7)

Definition at line 78 of file mpegutils.h.

◆ IS_INTER

#define IS_INTER ( a )

Value:

((a) & (MB_TYPE_16x16 | MB_TYPE_16x8 | \

MB_TYPE_8x16 | MB_TYPE_8x8))

Definition at line 79 of file mpegutils.h.

◆ IS_SKIP

#define IS_SKIP ( a ) ((a) & MB_TYPE_SKIP)

Definition at line 81 of file mpegutils.h.

◆ IS_INTRA_PCM

#define IS_INTRA_PCM ( a ) ((a) & MB_TYPE_INTRA_PCM)

Definition at line 82 of file mpegutils.h.

◆ IS_INTERLACED

#define IS_INTERLACED ( a ) ((a) & MB_TYPE_INTERLACED)

Definition at line 83 of file mpegutils.h.

◆ IS_DIRECT

#define IS_DIRECT ( a ) ((a) & MB_TYPE_DIRECT2)

Definition at line 84 of file mpegutils.h.

◆ IS_GMC

#define IS_GMC ( a ) ((a) & MB_TYPE_GMC)

Definition at line 85 of file mpegutils.h.

◆ IS_16X16

#define IS_16X16 ( a ) ((a) & MB_TYPE_16x16)

Definition at line 86 of file mpegutils.h.

◆ IS_16X8

#define IS_16X8 ( a ) ((a) & MB_TYPE_16x8)

Definition at line 87 of file mpegutils.h.

◆ IS_8X16

#define IS_8X16 ( a ) ((a) & MB_TYPE_8x16)

Definition at line 88 of file mpegutils.h.

◆ IS_8X8

#define IS_8X8 ( a ) ((a) & MB_TYPE_8x8)

Definition at line 89 of file mpegutils.h.

◆ IS_SUB_8X8

#define IS_SUB_8X8 ( a ) ((a) & MB_TYPE_16x16)

Definition at line 90 of file mpegutils.h.

◆ IS_SUB_8X4

#define IS_SUB_8X4 ( a ) ((a) & MB_TYPE_16x8)

Definition at line 91 of file mpegutils.h.

◆ IS_SUB_4X8

#define IS_SUB_4X8 ( a ) ((a) & MB_TYPE_8x16)

Definition at line 92 of file mpegutils.h.

◆ IS_SUB_4X4

#define IS_SUB_4X4 ( a ) ((a) & MB_TYPE_8x8)

Definition at line 93 of file mpegutils.h.

◆ IS_ACPRED

#define IS_ACPRED ( a ) ((a) & MB_TYPE_ACPRED)

Definition at line 94 of file mpegutils.h.

◆ IS_QUANT

#define IS_QUANT ( a ) ((a) & MB_TYPE_QUANT)

Definition at line 95 of file mpegutils.h.

◆ IS_DIR

#define IS_DIR	(	a,
		part,
		list
	)	((a) & (MB_TYPE_P0L0 << ((part) + 2 * (list))))

Definition at line 96 of file mpegutils.h.

◆ USES_LIST

#define USES_LIST	(	a,
		list
	)	((a) & ((MB_TYPE_P0L0 \| MB_TYPE_P1L0) << (2 * (list))))

Definition at line 99 of file mpegutils.h.

◆ HAS_CBP

#define HAS_CBP ( a ) ((a) & MB_TYPE_CBP)

Definition at line 101 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_INTRA

#define CANDIDATE_MB_TYPE_INTRA (1 << 0)

Definition at line 104 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_INTER

#define CANDIDATE_MB_TYPE_INTER (1 << 1)

Definition at line 105 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_INTER4V

#define CANDIDATE_MB_TYPE_INTER4V (1 << 2)

Definition at line 106 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_SKIPPED

#define CANDIDATE_MB_TYPE_SKIPPED (1 << 3)

Definition at line 107 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_DIRECT

#define CANDIDATE_MB_TYPE_DIRECT (1 << 4)

Definition at line 109 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_FORWARD

#define CANDIDATE_MB_TYPE_FORWARD (1 << 5)

Definition at line 110 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_BACKWARD

#define CANDIDATE_MB_TYPE_BACKWARD (1 << 6)

Definition at line 111 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_BIDIR

#define CANDIDATE_MB_TYPE_BIDIR (1 << 7)

Definition at line 112 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_INTER_I

#define CANDIDATE_MB_TYPE_INTER_I (1 << 8)

Definition at line 114 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_FORWARD_I

#define CANDIDATE_MB_TYPE_FORWARD_I (1 << 9)

Definition at line 115 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_BACKWARD_I

#define CANDIDATE_MB_TYPE_BACKWARD_I (1 << 10)

Definition at line 116 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_BIDIR_I

#define CANDIDATE_MB_TYPE_BIDIR_I (1 << 11)

Definition at line 117 of file mpegutils.h.

◆ CANDIDATE_MB_TYPE_DIRECT0

#define CANDIDATE_MB_TYPE_DIRECT0 (1 << 12)

Definition at line 119 of file mpegutils.h.

◆ INPLACE_OFFSET

#define INPLACE_OFFSET 16

Definition at line 121 of file mpegutils.h.

Enumeration Type Documentation

◆ OutputFormat

enum OutputFormat

Enumerator
FMT_MPEG1
FMT_H261
FMT_H263
FMT_MJPEG

Definition at line 123 of file mpegutils.h.

Function Documentation

◆ ff_draw_horiz_band()

void ff_draw_horiz_band	(	AVCodecContext *	avctx,
		AVFrame *	cur,
		AVFrame *	last,
		int	y,
		int	h,
		int	picture_structure,
		int	first_field,
		int	low_delay
	)

Draw a horizontal band if supported.

Parameters

h	is the normal height, this will be reduced automatically if needed

Definition at line 51 of file mpegutils.c.

Referenced by ff_intrax8_decode_picture(), ff_mpeg_draw_horiz_band(), and svq3_decode_frame().

◆ 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 103 of file mpegutils.c.

Referenced by ff_print_debug_info(), and finalize_frame().

Macros

Enumerations

Functions