libavcodec/mpegvideo.h File Reference

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

Definition at line 60 of file mpegvideo_enc.c.

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

void ff_copy_picture	(	Picture *	dst,
		Picture *	src
	)

Definition at line 196 of file mpegvideo.c.

Referenced by decode_slice_header(), MPV_frame_start(), and select_input_picture().

int ff_dct_common_init ( MpegEncContext * s )

Definition at line 153 of file mpegvideo.c.

Referenced by dnxhd_encode_init(), and MPV_common_init().

void ff_denoise_dct	(	MpegEncContext *	s,
		DCTELEM *	block
	)

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

Parameters:

h

is the normal height, this will be reduced automatically if needed for the last row

Definition at line 2083 of file mpegvideo.c.

Referenced by decode_slice(), ff_dxva2_common_end_frame(), ff_intrax8_decode_picture(), ff_vaapi_common_end_frame(), ff_vdpau_h264_picture_complete(), ff_vdpau_mpeg4_decode_picture(), ff_vdpau_mpeg_picture_complete(), ff_vdpau_vc1_decode_picture(), ff_xvmc_decode_mb(), ff_xvmc_field_end(), mpeg_decode_slice(), svq3_decode_frame(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

int ff_epzs_motion_search	(	MpegEncContext *	s,
		int *	mx_ptr,
		int *	my_ptr,
		int	P[10][2],
		int	src_index,
		int	ref_index,
		int16_t(*)	last_mv[2],
		int	ref_mv_scale,
		int	size,
		int	h
	)			`[inline]`

Definition at line 1153 of file motion_est_template.c.

Referenced by direct_search(), ff_estimate_motion_b(), ff_estimate_p_frame_motion(), and ff_pre_estimate_p_frame_motion().

void ff_er_add_slice	(	MpegEncContext *	s,
		int	startx,
		int	starty,
		int	endx,
		int	endy,
		int	status
	)

adds a slice.

Parameters:

	endx	x component of the last macroblock, can be -1 for the last of the previous line
	status	the status at the end (MV_END, AC_ERROR, ...), it is assumed that no earlier end or error of the same type occurred

Definition at line 692 of file error_resilience.c.

Referenced by decode_chunks(), decode_slice(), ff_intrax8_decode_picture(), ff_mpeg4_decode_partitions(), rv10_decode_packet(), rv34_decode_slice(), slice_decode_thread(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

void ff_er_frame_end ( MpegEncContext * s )

Definition at line 751 of file error_resilience.c.

Referenced by ff_h263_decode_frame(), ff_rv34_decode_frame(), field_end(), rv10_decode_frame(), rv10_decode_packet(), slice_end(), and vc1_decode_frame().

void ff_er_frame_start ( MpegEncContext * s )

Definition at line 679 of file error_resilience.c.

Referenced by ff_h263_decode_frame(), ff_h264_frame_start(), h261_decode_frame(), mpeg_field_start(), rv10_decode_packet(), rv34_decode_slice(), and vc1_decode_frame().

void ff_estimate_b_frame_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)

Definition at line 1706 of file motion_est.c.

Referenced by estimate_motion_thread().

void ff_estimate_p_frame_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)

< the variance of the block (sum of squared (p[y][x]-average))

< sum of squared differences with the estimated motion vector

Definition at line 1013 of file motion_est.c.

Referenced by estimate_motion_thread(), and svq1_encode_plane().

const uint8_t* ff_find_start_code	(	const uint8_t *	p,
		const uint8_t *	end,
		uint32_t *	state
	)

int ff_find_unused_picture	(	MpegEncContext *	s,
		int	shared
	)

Definition at line 854 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), h261_decode_frame(), load_input_picture(), MPV_frame_start(), select_input_picture(), and vc1_decode_frame().

void ff_fix_long_mvs	(	MpegEncContext *	s,
		uint8_t *	field_select_table,
		int	field_select,
		int16_t(*)	mv_table[2],
		int	f_code,
		int	type,
		int	truncate
	)

Parameters:

truncate

1 for truncation, 0 for using intra

Definition at line 1975 of file motion_est.c.

Referenced by encode_picture(), and svq1_encode_plane().

void ff_fix_long_p_mvs ( MpegEncContext * s )

Definition at line 1924 of file motion_est.c.

Referenced by encode_picture(), and svq1_encode_plane().

int ff_get_best_fcode	(	MpegEncContext *	s,
		int16_t(*)	mv_table[2],
		int	type
	)

Definition at line 1865 of file motion_est.c.

Referenced by encode_picture().

int ff_get_mb_score	(	MpegEncContext *	s,
		int	mx,
		int	my,
		int	src_index,
		int	ref_index,
		int	size,
		int	h,
		int	add_rate
	)			`[inline]`

Definition at line 235 of file motion_est_template.c.

Referenced by direct_search(), ff_estimate_motion_b(), and ff_estimate_p_frame_motion().

void ff_h261_encode_init ( MpegEncContext * s )

Definition at line 238 of file h261enc.c.

Referenced by MPV_encode_init().

void ff_h261_encode_mb	(	MpegEncContext *	s,
		DCTELEM	block[6][64],
		int	motion_x,
		int	motion_y
	)

Definition at line 156 of file h261enc.c.

Referenced by encode_mb_internal().

void ff_h261_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 52 of file h261enc.c.

Referenced by encode_picture().

int ff_h261_get_picture_format	(	int	width,
		int	height
	)

Definition at line 40 of file h261enc.c.

Referenced by ff_h261_encode_picture_header(), ff_h261_reorder_mb_index(), h261_encode_gob_header(), and MPV_encode_init().

void ff_h261_loop_filter ( MpegEncContext * s )

Definition at line 36 of file h261.c.

Referenced by mpeg_motion_internal().

void ff_h261_reorder_mb_index ( MpegEncContext * s )

Definition at line 107 of file h261enc.c.

Referenced by encode_thread().

static int ff_h263_round_chroma ( int x ) [inline, static]

Definition at line 751 of file mpegvideo.h.

Referenced by chroma_4mv_motion(), chroma_4mv_motion_lowres(), and h263_mv4_search().

void ff_init_block_index ( MpegEncContext * s )

Definition at line 2123 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(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg_decode_slice(), rv10_decode_packet(), rv34_decode_slice(), svq1_encode_plane(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

int ff_init_me ( MpegEncContext * s )

Definition at line 298 of file motion_est.c.

Referenced by encode_picture(), and svq1_encode_plane().

void ff_mpeg1_clean_buffers ( MpegEncContext * s )

Definition at line 129 of file mpeg12.c.

Referenced by encode_thread(), and mpeg_decode_slice().

void ff_mpeg1_encode_init ( MpegEncContext * s )

Definition at line 713 of file mpeg12enc.c.

Referenced by MPV_encode_init().

void ff_mpeg1_encode_slice_header ( MpegEncContext * s )

Definition at line 329 of file mpeg12enc.c.

Referenced by encode_thread(), and mpeg1_encode_picture_header().

int ff_mpeg1_find_frame_end	(	ParseContext *	pc,
		const uint8_t *	buf,
		int	buf_size,
		AVCodecParserContext *	s
	)

Finds the end of the current frame in the bitstream.

Returns:: the position of the first byte of the next frame, or -1

Definition at line 2161 of file mpeg12.c.

Referenced by mpeg_decode_frame(), and mpegvideo_parse().

void ff_mpeg_flush ( AVCodecContext * avctx )

Definition at line 2155 of file mpegvideo.c.

Referenced by flush(), and flush_dpb().

int ff_msmpeg4_decode_init ( AVCodecContext * avctx )

Definition at line 1275 of file msmpeg4.c.

Referenced by vc1_decode_init(), and wmv2_decode_init().

void ff_msmpeg4_encode_init ( MpegEncContext * s )

Referenced by MPV_encode_init().

void ff_mspel_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		uint8_t **	ref_picture,
		op_pixels_func(*)	pix_op[4],
		int	motion_x,
		int	motion_y,
		int	h
	)

Definition at line 73 of file wmv2.c.

Referenced by MPV_motion_internal().

int ff_pre_estimate_p_frame_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)

Definition at line 1263 of file motion_est.c.

Referenced by pre_estimate_motion_thread().

void ff_print_debug_info	(	MpegEncContext *	s,
		AVFrame *	pict
	)

prints debuging info for the given picture.

Definition at line 1184 of file mpegvideo.c.

Referenced by decode_frame(), ff_h263_decode_frame(), ff_rv34_decode_frame(), h261_decode_frame(), rv10_decode_frame(), slice_end(), and vc1_decode_frame().

void ff_set_qscale	(	MpegEncContext *	s,
		int	qscale
	)

set qscale and update qscale dependent variables.

Definition at line 2403 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().

static void ff_update_block_index ( MpegEncContext * s ) [inline, static]

Definition at line 728 of file mpegvideo.h.

Referenced by decode_slice(), encode_thread(), ff_h261_reorder_mb_index(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), rv10_decode_packet(), rv34_decode_slice(), svq1_encode_plane(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

void ff_update_duplicate_context	(	MpegEncContext *	dst,
		MpegEncContext *	src
	)

Definition at line 429 of file mpegvideo.c.

Referenced by decode_chunks(), and encode_picture().

void ff_wmv2_add_mb	(	MpegEncContext *	s,
		DCTELEM	block[6][64],
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr
	)

Definition at line 59 of file wmv2.c.

Referenced by MPV_decode_mb_internal().

int ff_wmv2_decode_picture_header ( MpegEncContext * s )

Definition at line 114 of file wmv2dec.c.

Referenced by ff_h263_decode_frame().

int ff_wmv2_decode_secondary_picture_header ( MpegEncContext * s )

Definition at line 144 of file wmv2dec.c.

Referenced by ff_h263_decode_frame().

void ff_wmv2_encode_mb	(	MpegEncContext *	s,
		DCTELEM	block[6][64],
		int	motion_x,
		int	motion_y
	)

Definition at line 150 of file wmv2enc.c.

Referenced by encode_mb_internal().

int ff_wmv2_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 70 of file wmv2enc.c.

Referenced by encode_picture().

void ff_write_quant_matrix	(	PutBitContext *	pb,
		uint16_t *	matrix
	)

Definition at line 141 of file mpegvideo_enc.c.

Referenced by mpeg1_encode_sequence_header(), and mpeg4_encode_vol_header().

static int get_bits_diff ( MpegEncContext * s ) [inline, static]

Definition at line 742 of file mpegvideo.h.

Referenced by h263_encode_mb(), mpeg1_encode_mb_internal(), mpeg4_encode_mb(), and write_slice_end().

void mpeg1_encode_mb	(	MpegEncContext *	s,
		DCTELEM	block[6][64],
		int	motion_x,
		int	motion_y
	)

Definition at line 665 of file mpeg12enc.c.

Referenced by encode_mb_internal().

void mpeg1_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 340 of file mpeg12enc.c.

Referenced by encode_picture().

void MPV_common_end ( MpegEncContext * s )

Definition at line 680 of file mpegvideo.c.

Referenced by decode_slice_header(), ff_h263_decode_end(), ff_h263_decode_frame(), ff_h264_decode_end(), ff_rv34_decode_end(), h261_decode_end(), h261_decode_frame(), mpeg_decode_end(), mpeg_decode_postinit(), MPV_common_init(), MPV_encode_end(), rv10_decode_end(), rv20_decode_picture_header(), rv34_decode_slice(), svq1_decode_end(), vc1_decode_end(), and vcr2_init_sequence().

int 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 477 of file mpegvideo.c.

Referenced by decode_pic(), decode_slice_header(), ff_h263_decode_frame(), ff_h263_decode_init(), ff_rv34_decode_init(), h261_decode_frame(), MPV_encode_init(), rv10_decode_init(), rv20_decode_picture_header(), rv34_decode_slice(), svq1_decode_init(), svq3_decode_init(), and vcr2_init_sequence().

void MPV_common_init_altivec ( MpegEncContext * s )

Definition at line 576 of file mpegvideo_altivec.c.

Referenced by ff_dct_common_init().

void MPV_common_init_arm ( MpegEncContext * s )

Definition at line 26 of file mpegvideo_arm.c.

Referenced by ff_dct_common_init().

void MPV_common_init_axp ( MpegEncContext * s )

Definition at line 106 of file mpegvideo_alpha.c.

Referenced by ff_dct_common_init().

void MPV_common_init_bfin ( MpegEncContext * s )

Definition at line 144 of file mpegvideo_bfin.c.

Referenced by ff_dct_common_init().

void MPV_common_init_mlib ( MpegEncContext * s )

Definition at line 452 of file dsputil_mlib.c.

Referenced by ff_dct_common_init().

void MPV_common_init_mmi ( MpegEncContext * s )

Definition at line 83 of file mpegvideo_mmi.c.

Referenced by ff_dct_common_init().

void MPV_common_init_mmx ( MpegEncContext * s )

Definition at line 626 of file mpegvideo_mmx.c.

Referenced by ff_dct_common_init().

void MPV_decode_defaults ( MpegEncContext * s )

sets the given MpegEncContext to defaults for decoding.

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

Definition at line 469 of file mpegvideo.c.

Referenced by ff_cavs_init(), ff_h263_decode_init(), ff_h264_decode_init(), ff_rv34_decode_init(), h261_decode_init(), mpeg_decode_init(), rv10_decode_init(), and svq1_decode_init().

void MPV_decode_mb	(	MpegEncContext *	s,
		DCTELEM	block[12][64]
	)

Definition at line 2068 of file mpegvideo.c.

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

int MPV_encode_end ( AVCodecContext * avctx )

Definition at line 754 of file mpegvideo_enc.c.

int MPV_encode_init ( AVCodecContext * avctx )

Definition at line 239 of file mpegvideo_enc.c.

Referenced by encode_init(), and wmv2_encode_init().

int MPV_encode_picture	(	AVCodecContext *	avctx,
		unsigned char *	buf,
		int	buf_size,
		void *	data
	)

Definition at line 1226 of file mpegvideo_enc.c.

void MPV_frame_end ( MpegEncContext * s )

Definition at line 1047 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), ff_rv34_decode_frame(), field_end(), h261_decode_frame(), MPV_encode_picture(), rv10_decode_frame(), rv10_decode_packet(), slice_end(), svq1_decode_frame(), svq3_decode_frame(), and vc1_decode_frame().

int MPV_frame_start	(	MpegEncContext *	s,
		AVCodecContext *	avctx
	)

generic function for encode/decode called after coding/decoding the header and before a frame is coded/decoded

Definition at line 906 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), ff_h264_frame_start(), h261_decode_frame(), mpeg_field_start(), MPV_encode_picture(), rv10_decode_packet(), rv34_decode_slice(), svq1_decode_frame(), and vc1_decode_frame().

int msmpeg4_decode_ext_header	(	MpegEncContext *	s,
		int	buf_size
	)

Definition at line 1548 of file msmpeg4.c.

Referenced by ff_h263_decode_frame(), and msmpeg4_decode_picture_header().

int msmpeg4_decode_picture_header ( MpegEncContext * s )

Definition at line 1382 of file msmpeg4.c.

Referenced by ff_h263_decode_frame().

void msmpeg4_encode_ext_header ( MpegEncContext * s )

Referenced by encode_thread().

void msmpeg4_encode_mb	(	MpegEncContext *	s,
		DCTELEM	block[6][64],
		int	motion_x,
		int	motion_y
	)

Referenced by encode_mb_internal().

void msmpeg4_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Referenced by encode_picture().

void rv10_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 31 of file rv10enc.c.

Referenced by encode_picture().

void rv20_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 32 of file rv20enc.c.

Referenced by encode_picture().

int rv_decode_dc	(	MpegEncContext *	s,
		int	n
	)

Definition at line 184 of file rv10.c.

Referenced by h263_decode_block().

Variable Documentation

const uint8_t ff_aic_dc_scale_table[32]

Definition at line 248 of file h263data.h.

Referenced by ff_flv_encode_picture_header(), h263_decode_picture_header(), h263_encode_picture_header(), rv10_decode_packet(), and rv20_encode_picture_header().

const uint8_t ff_h263_chroma_qscale_table[32]

Definition at line 262 of file h263data.h.

Referenced by h263_decode_picture_header(), MPV_encode_init(), and rv10_decode_packet().

const uint8_t ff_h263_loop_filter_strength[32]

Definition at line 275 of file h263data.h.

Referenced by h263_h_loop_filter_c(), h263_h_loop_filter_mmx(), h263_v_loop_filter_c(), and h263_v_loop_filter_mmx().

enum PixelFormat ff_hwaccel_pixfmt_list_420[]

Definition at line 115 of file mpegvideo.c.

Referenced by mpeg_get_pixelformat().

const uint8_t ff_mpeg1_dc_scale_table[128]

Definition at line 71 of file mpegvideo.c.

Referenced by common_init(), ff_flv_decode_picture_header(), ff_flv_encode_picture_header(), ff_h261_encode_init(), ff_intel_h263_decode_picture_header(), h263_decode_picture_header(), h263_encode_init(), h263_encode_picture_header(), MPV_common_defaults(), rv10_decode_packet(), and rv20_encode_picture_header().

const uint8_t* const ff_mpeg2_dc_scale_table[4]

Definition at line 103 of file mpegvideo.c.

Referenced by encode_picture(), and ff_mpeg12_common_init().

enum PixelFormat ff_pixfmt_list_420[]

Definition at line 110 of file mpegvideo.c.


Data Structures
struct	Picture
	Picture. More...
struct	MotionEstContext
	Motion estimation context. More...
struct	MpegEncContext
	MpegEncContext. More...
Defines
#define	FRAME_SKIPPED 100
	return value for header parsers if frame is not coded
#define	MPEG_BUF_SIZE (16 * 1024)
#define	QMAT_SHIFT_MMX 16
#define	QMAT_SHIFT 22
#define	MAX_FCODE 7
#define	MAX_MV 2048
#define	MAX_THREADS 16
#define	MAX_PICTURE_COUNT 32
#define	ME_MAP_SIZE 64
#define	ME_MAP_SHIFT 3
#define	ME_MAP_MV_BITS 11
#define	MAX_MB_BYTES (301616*3/8 + 120)
#define	INPLACE_OFFSET 16
#define	SEQ_END_CODE 0x000001b7
#define	SEQ_START_CODE 0x000001b3
#define	GOP_START_CODE 0x000001b8
#define	PICTURE_START_CODE 0x00000100
#define	SLICE_MIN_START_CODE 0x00000101
#define	SLICE_MAX_START_CODE 0x000001af
#define	EXT_START_CODE 0x000001b5
#define	USER_START_CODE 0x000001b2
#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) ((a)&(MB_TYPE_16x16\|MB_TYPE_16x8\|MB_TYPE_8x16\|MB_TYPE_8x8))
#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))))
	does this mb use listX, note does not work if subMBs
#define	HAS_CBP(a) ((a)&MB_TYPE_CBP)
#define	PREV_PICT_TYPES_BUFFER_SIZE 256
#define	MV_DIR_FORWARD 1
#define	MV_DIR_BACKWARD 2
#define	MV_DIRECT 4
	bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)
#define	MV_TYPE_16X16 0
	1 vector for the whole mb
#define	MV_TYPE_8X8 1
	4 vectors (h263, mpeg4 4MV)
#define	MV_TYPE_16X8 2
	2 vectors, one per 16x8 block
#define	MV_TYPE_FIELD 3
	2 vectors, one per field
#define	MV_TYPE_DMV 4
	2 vectors, special mpeg2 Dual Prime Vectors
#define	CANDIDATE_MB_TYPE_INTRA 0x01
#define	CANDIDATE_MB_TYPE_INTER 0x02
#define	CANDIDATE_MB_TYPE_INTER4V 0x04
#define	CANDIDATE_MB_TYPE_SKIPPED 0x08
#define	CANDIDATE_MB_TYPE_DIRECT 0x10
#define	CANDIDATE_MB_TYPE_FORWARD 0x20
#define	CANDIDATE_MB_TYPE_BACKWARD 0x40
#define	CANDIDATE_MB_TYPE_BIDIR 0x80
#define	CANDIDATE_MB_TYPE_INTER_I 0x100
#define	CANDIDATE_MB_TYPE_FORWARD_I 0x200
#define	CANDIDATE_MB_TYPE_BACKWARD_I 0x400
#define	CANDIDATE_MB_TYPE_BIDIR_I 0x800
#define	CANDIDATE_MB_TYPE_DIRECT0 0x1000
#define	QUANT_BIAS_SHIFT 8
#define	UNI_AC_ENC_INDEX(run, level) ((run)*128 + (level))
#define	VP_START 1
	current MB is the first after a resync marker
#define	AC_ERROR 2
#define	DC_ERROR 4
#define	MV_ERROR 8
#define	AC_END 16
#define	DC_END 32
#define	MV_END 64
#define	PICT_TOP_FIELD 1
#define	PICT_BOTTOM_FIELD 2
#define	PICT_FRAME 3
#define	CHROMA_420 1
#define	CHROMA_422 2
#define	CHROMA_444 3
#define	SLICE_OK 0
#define	SLICE_ERROR -1
#define	SLICE_END -2
	end marker found
#define	SLICE_NOEND -3
	no end marker or error found but mb count exceeded
Enumerations
enum	OutputFormat { FMT_MPEG1, FMT_H261, FMT_H263, FMT_MJPEG, FMT_H264 }
Functions
void	MPV_decode_defaults (MpegEncContext *s)
	sets the given MpegEncContext to defaults for decoding.
int	MPV_common_init (MpegEncContext *s)
	init common structure for both encoder and decoder.
void	MPV_common_end (MpegEncContext *s)
void	MPV_decode_mb (MpegEncContext *s, DCTELEM block[12][64])
int	MPV_frame_start (MpegEncContext s, AVCodecContext avctx)
	generic function for encode/decode called after coding/decoding the header and before a frame is coded/decoded
void	MPV_frame_end (MpegEncContext *s)
int	MPV_encode_init (AVCodecContext *avctx)
int	MPV_encode_end (AVCodecContext *avctx)
int	MPV_encode_picture (AVCodecContext avctx, unsigned char buf, int buf_size, void *data)
void	MPV_common_init_mmx (MpegEncContext *s)
void	MPV_common_init_axp (MpegEncContext *s)
void	MPV_common_init_mlib (MpegEncContext *s)
void	MPV_common_init_mmi (MpegEncContext *s)
void	MPV_common_init_arm (MpegEncContext *s)
void	MPV_common_init_altivec (MpegEncContext *s)
void	MPV_common_init_bfin (MpegEncContext *s)
void	ff_clean_intra_table_entries (MpegEncContext *s)
	cleans dc, ac, coded_block for the current non intra MB
void	ff_draw_horiz_band (MpegEncContext *s, int y, int h)
void	ff_mpeg_flush (AVCodecContext *avctx)
void	ff_print_debug_info (MpegEncContext s, AVFrame pict)
	prints debuging info for the given picture.
void	ff_write_quant_matrix (PutBitContext pb, uint16_t matrix)
int	ff_find_unused_picture (MpegEncContext *s, int shared)
void	ff_denoise_dct (MpegEncContext s, DCTELEM block)
void	ff_update_duplicate_context (MpegEncContext dst, MpegEncContext src)
const uint8_t *	ff_find_start_code (const uint8_t p, const uint8_t end, uint32_t *state)
void	ff_set_qscale (MpegEncContext *s, int qscale)
	set qscale and update qscale dependent variables.
void	ff_er_frame_start (MpegEncContext *s)
void	ff_er_frame_end (MpegEncContext *s)
void	ff_er_add_slice (MpegEncContext *s, int startx, int starty, int endx, int endy, int status)
	adds a slice.
int	ff_dct_common_init (MpegEncContext *s)
void	ff_convert_matrix (DSPContext dsp, int(qmat)[64], uint16_t(qmat16)[2][64], const uint16_t quant_matrix, int bias, int qmin, int qmax, int intra)
void	ff_init_block_index (MpegEncContext *s)
void	ff_copy_picture (Picture dst, Picture src)
int	ff_alloc_picture (MpegEncContext s, Picture pic, int shared)
	allocates a Picture The pixels are allocated/set by calling get_buffer() if shared=0
static void	ff_update_block_index (MpegEncContext *s)
static int	get_bits_diff (MpegEncContext *s)
static int	ff_h263_round_chroma (int x)
void	ff_estimate_p_frame_motion (MpegEncContext *s, int mb_x, int mb_y)
void	ff_estimate_b_frame_motion (MpegEncContext *s, int mb_x, int mb_y)
int	ff_get_best_fcode (MpegEncContext s, int16_t(mv_table)[2], int type)
void	ff_fix_long_p_mvs (MpegEncContext *s)
void	ff_fix_long_mvs (MpegEncContext s, uint8_t field_select_table, int field_select, int16_t(*mv_table)[2], int f_code, int type, int truncate)
int	ff_init_me (MpegEncContext *s)
int	ff_pre_estimate_p_frame_motion (MpegEncContext *s, int mb_x, int mb_y)
int	ff_epzs_motion_search (MpegEncContext s, int mx_ptr, int my_ptr, int P[10][2], int src_index, int ref_index, int16_t(last_mv)[2], int ref_mv_scale, int size, int h)
int	ff_get_mb_score (MpegEncContext *s, int mx, int my, int src_index, int ref_index, int size, int h, int add_rate)
void	mpeg1_encode_picture_header (MpegEncContext *s, int picture_number)
void	mpeg1_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
void	ff_mpeg1_encode_init (MpegEncContext *s)
void	ff_mpeg1_encode_slice_header (MpegEncContext *s)
void	ff_mpeg1_clean_buffers (MpegEncContext *s)
int	ff_mpeg1_find_frame_end (ParseContext pc, const uint8_t buf, int buf_size, AVCodecParserContext *s)
	Finds the end of the current frame in the bitstream.
void	ff_h261_loop_filter (MpegEncContext *s)
void	ff_h261_reorder_mb_index (MpegEncContext *s)
void	ff_h261_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
void	ff_h261_encode_picture_header (MpegEncContext *s, int picture_number)
void	ff_h261_encode_init (MpegEncContext *s)
int	ff_h261_get_picture_format (int width, int height)
void	rv10_encode_picture_header (MpegEncContext *s, int picture_number)
int	rv_decode_dc (MpegEncContext *s, int n)
void	rv20_encode_picture_header (MpegEncContext *s, int picture_number)
void	msmpeg4_encode_picture_header (MpegEncContext *s, int picture_number)
void	msmpeg4_encode_ext_header (MpegEncContext *s)
void	msmpeg4_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
int	msmpeg4_decode_picture_header (MpegEncContext *s)
int	msmpeg4_decode_ext_header (MpegEncContext *s, int buf_size)
int	ff_msmpeg4_decode_init (AVCodecContext *avctx)
void	ff_msmpeg4_encode_init (MpegEncContext *s)
int	ff_wmv2_decode_picture_header (MpegEncContext *s)
int	ff_wmv2_decode_secondary_picture_header (MpegEncContext *s)
void	ff_wmv2_add_mb (MpegEncContext s, DCTELEM block[6][64], uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr)
void	ff_mspel_motion (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, uint8_t *ref_picture, op_pixels_func(pix_op)[4], int motion_x, int motion_y, int h)
int	ff_wmv2_encode_picture_header (MpegEncContext *s, int picture_number)
void	ff_wmv2_encode_mb (MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
Variables
enum PixelFormat	ff_pixfmt_list_420 []
enum PixelFormat	ff_hwaccel_pixfmt_list_420 []
const uint8_t	ff_mpeg1_dc_scale_table [128]
const uint8_t *const	ff_mpeg2_dc_scale_table [4]
const uint8_t	ff_aic_dc_scale_table [32]
const uint8_t	ff_h263_chroma_qscale_table [32]
const uint8_t	ff_h263_loop_filter_strength [32]