mpegvideo_enc.c File Reference

Detailed Description

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

Function Documentation

static int encode_picture	(	MpegEncContext *	s,
		int	picture_number
	)			`[static]`

Definition at line 2712 of file mpegvideo_enc.c.

Referenced by MPV_encode_picture().

static int dct_quantize_refine	(	MpegEncContext *	s,
		DCTELEM *	block,
		int16_t *	weight,
		DCTELEM *	orig,
		int	n,
		int	qscale
	)			`[static]`

Definition at line 3261 of file mpegvideo_enc.c.

Referenced by encode_mb_internal().

static int sse_mb ( MpegEncContext * s ) [static]

Definition at line 1883 of file mpegvideo_enc.c.

Referenced by encode_mb_hq().

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 69 of file mpegvideo_enc.c.

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

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

Definition at line 143 of file mpegvideo_enc.c.

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

void ff_write_quant_matrix	(	PutBitContext *	pb,
		uint16_t *	matrix
	)

Definition at line 150 of file mpegvideo_enc.c.

Referenced by mpeg1_encode_sequence_header(), and mpeg4_encode_vol_header().

static void copy_picture_attributes	(	MpegEncContext *	s,
		AVFrame *	dst,
		AVFrame *	src
	)			`[static]`

Definition at line 162 of file mpegvideo_enc.c.

Referenced by load_input_picture(), and select_input_picture().

static void update_duplicate_context_after_me	(	MpegEncContext *	dst,
		MpegEncContext *	src
	)			`[static]`

Definition at line 201 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void MPV_encode_defaults ( MpegEncContext * s ) [static]

sets the given MpegEncContext to defaults for encoding.

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

Definition at line 222 of file mpegvideo_enc.c.

Referenced by MPV_encode_init().

int MPV_encode_init ( AVCodecContext * avctx )

Definition at line 234 of file mpegvideo_enc.c.

Referenced by encode_init(), and wmv2_encode_init().

int MPV_encode_end ( AVCodecContext * avctx )

Definition at line 731 of file mpegvideo_enc.c.

Referenced by wmv2_encode_end().

static int get_sae	(	uint8_t *	src,
		int	ref,
		int	stride
	)			`[static]`

Definition at line 746 of file mpegvideo_enc.c.

Referenced by get_intra_count().

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

Definition at line 759 of file mpegvideo_enc.c.

Referenced by select_input_picture().

static int load_input_picture	(	MpegEncContext *	s,
		AVFrame *	pic_arg
	)			`[static]`

Definition at line 780 of file mpegvideo_enc.c.

Referenced by MPV_encode_picture().

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

Definition at line 886 of file mpegvideo_enc.c.

Referenced by select_input_picture().

static int estimate_best_b_count ( MpegEncContext * s ) [static]

Definition at line 919 of file mpegvideo_enc.c.

Referenced by select_input_picture().

static void select_input_picture ( MpegEncContext * s ) [static]

Definition at line 1028 of file mpegvideo_enc.c.

Referenced by MPV_encode_picture().

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

Definition at line 1196 of file mpegvideo_enc.c.

static void dct_single_coeff_elimination	(	MpegEncContext *	s,
		int	n,
		int	threshold
	)			`[inline, static]`

Definition at line 1345 of file mpegvideo_enc.c.

Referenced by encode_mb_internal().

static void clip_coeffs	(	MpegEncContext *	s,
		DCTELEM *	block,
		int	last_index
	)			`[inline, static]`

Definition at line 1394 of file mpegvideo_enc.c.

Referenced by encode_mb_internal().

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

Definition at line 1425 of file mpegvideo_enc.c.

Referenced by 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_count
	)			`[static]`

Definition at line 1448 of file mpegvideo_enc.c.

Referenced by encode_mb().

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

Definition at line 1742 of file mpegvideo_enc.c.

static void copy_context_before_encode	(	MpegEncContext *	d,
		MpegEncContext *	s,
		int	type
	)			`[inline, static]`

Definition at line 1748 of file mpegvideo_enc.c.

Referenced by encode_mb_hq(), and encode_thread().

static void copy_context_after_encode	(	MpegEncContext *	d,
		MpegEncContext *	s,
		int	type
	)			`[inline, static]`

Definition at line 1774 of file mpegvideo_enc.c.

Referenced by encode_mb_hq(), and encode_thread().

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

Definition at line 1811 of file mpegvideo_enc.c.

Referenced by encode_thread().

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

Definition at line 1862 of file mpegvideo_enc.c.

Referenced by block_sse(), MythMainWindow::customEvent(), encode_thread(), and sse_mb().

static int pre_estimate_motion_thread	(	AVCodecContext *	c,
		void *	arg
	)			`[static]`

Definition at line 1906 of file mpegvideo_enc.c.

Referenced by encode_picture().

static int estimate_motion_thread	(	AVCodecContext *	c,
		void *	arg
	)			`[static]`

Definition at line 1925 of file mpegvideo_enc.c.

Referenced by encode_picture().

static int mb_var_thread	(	AVCodecContext *	c,
		void *	arg
	)			`[static]`

Definition at line 1952 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void write_slice_end ( MpegEncContext * s ) [static]

Definition at line 1976 of file mpegvideo_enc.c.

Referenced by encode_thread().

static int encode_thread	(	AVCodecContext *	c,
		void *	arg
	)			`[static]`

Definition at line 1994 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void merge_context_after_me	(	MpegEncContext *	dst,
		MpegEncContext *	src
	)			`[static]`

Definition at line 2624 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void merge_context_after_encode	(	MpegEncContext *	dst,
		MpegEncContext *	src
	)			`[static]`

Definition at line 2630 of file mpegvideo_enc.c.

Referenced by encode_picture().

static int estimate_qp	(	MpegEncContext *	s,
		int	dry_run
	)			`[static]`

Definition at line 2662 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void set_frame_distances ( MpegEncContext * s ) [static]

Definition at line 2698 of file mpegvideo_enc.c.

Referenced by encode_picture().

void denoise_dct_c	(	MpegEncContext *	s,
		DCTELEM *	block
	)

Definition at line 2927 of file mpegvideo_enc.c.

Referenced by MPV_encode_init().

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

Definition at line 2951 of file mpegvideo_enc.c.

Referenced by MPV_encode_init().

static void build_basis ( uint8_t * perm ) [static]

Definition at line 3242 of file mpegvideo_enc.c.

Referenced by dct_quantize_refine().

int dct_quantize_c	(	MpegEncContext *	s,
		DCTELEM *	block,
		int	n,
		int	qscale,
		int *	overflow
	)

Definition at line 3637 of file mpegvideo_enc.c.

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

Variable Documentation

const uint16_t aanscales[64] [static]

Initial value:

 {
    
    16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
    22725, 31521, 29692, 26722, 22725, 17855, 12299,  6270,
    21407, 29692, 27969, 25172, 21407, 16819, 11585,  5906,
    19266, 26722, 25172, 22654, 19266, 15137, 10426,  5315,
    16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
    12873, 17855, 16819, 15137, 12873, 10114,  6967,  3552,
    8867 , 12299, 11585, 10426,  8867,  6967,  4799,  2446,
    4520 ,  6270,  5906,  5315,  4520,  3552,  2446,  1247
}

Definition at line 52 of file mpegvideo_enc.c.

uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV *2+1] [static]

Definition at line 64 of file mpegvideo_enc.c.

Referenced by MPV_encode_defaults().

uint8_t default_fcode_tab[MAX_MV *2+1] [static]

Definition at line 65 of file mpegvideo_enc.c.

Referenced by MPV_encode_defaults().

enum PixelFormat ff_yuv420p_list[2] = {PIX_FMT_YUV420P, -1}

Definition at line 67 of file mpegvideo_enc.c.

int16_t basis[64][64] [static]

Definition at line 3240 of file mpegvideo_enc.c.

Referenced by add_8x8basis(), and try_8x8basis().

AVCodec h263_encoder

Initial value:

 {
    "h263",
    CODEC_TYPE_VIDEO,
    CODEC_ID_H263,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 3717 of file mpegvideo_enc.c.

AVCodec h263p_encoder

Initial value:

 {
    "h263p",
    CODEC_TYPE_VIDEO,
    CODEC_ID_H263P,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 3728 of file mpegvideo_enc.c.

AVCodec flv_encoder

Initial value:

 {
    "flv",
    CODEC_TYPE_VIDEO,
    CODEC_ID_FLV1,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 3739 of file mpegvideo_enc.c.

AVCodec rv10_encoder

Initial value:

 {
    "rv10",
    CODEC_TYPE_VIDEO,
    CODEC_ID_RV10,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 3750 of file mpegvideo_enc.c.

AVCodec rv20_encoder

Initial value:

 {
    "rv20",
    CODEC_TYPE_VIDEO,
    CODEC_ID_RV20,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 3761 of file mpegvideo_enc.c.

AVCodec mpeg4_encoder

Initial value:

 {
    "mpeg4",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MPEG4,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
    .capabilities= CODEC_CAP_DELAY,
}

Definition at line 3772 of file mpegvideo_enc.c.

AVCodec msmpeg4v1_encoder

Initial value:

 {
    "msmpeg4v1",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MSMPEG4V1,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 3784 of file mpegvideo_enc.c.

AVCodec msmpeg4v2_encoder

Initial value:

 {
    "msmpeg4v2",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MSMPEG4V2,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 3795 of file mpegvideo_enc.c.

AVCodec msmpeg4v3_encoder

Initial value:

 {
    "msmpeg4",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MSMPEG4V3,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 3806 of file mpegvideo_enc.c.

AVCodec wmv1_encoder

Initial value:

 {
    "wmv1",
    CODEC_TYPE_VIDEO,
    CODEC_ID_WMV1,
    sizeof(MpegEncContext),
    MPV_encode_init,
    MPV_encode_picture,
    MPV_encode_end,
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
}

Definition at line 3817 of file mpegvideo_enc.c.


Functions
static int	encode_picture (MpegEncContext *s, int picture_number)
static int	dct_quantize_refine (MpegEncContext s, DCTELEM block, int16_t weight, DCTELEM orig, int n, int qscale)
static int	sse_mb (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)
static void	update_qscale (MpegEncContext *s)
void	ff_write_quant_matrix (PutBitContext pb, uint16_t matrix)
static void	copy_picture_attributes (MpegEncContext s, AVFrame dst, AVFrame *src)
static void	update_duplicate_context_after_me (MpegEncContext dst, MpegEncContext src)
static void	MPV_encode_defaults (MpegEncContext *s)
	sets the given MpegEncContext to defaults for encoding.
int	MPV_encode_init (AVCodecContext *avctx)
int	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	load_input_picture (MpegEncContext s, AVFrame pic_arg)
static int	skip_check (MpegEncContext s, Picture p, Picture *ref)
static int	estimate_best_b_count (MpegEncContext *s)
static void	select_input_picture (MpegEncContext *s)
int	MPV_encode_picture (AVCodecContext avctx, unsigned char buf, int buf_size, void *data)
static void	dct_single_coeff_elimination (MpegEncContext *s, int n, int threshold)
static void	clip_coeffs (MpegEncContext s, DCTELEM 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_count)
static av_always_inline void	encode_mb (MpegEncContext *s, int motion_x, int motion_y)
static void	copy_context_before_encode (MpegEncContext d, MpegEncContext s, int type)
static void	copy_context_after_encode (MpegEncContext d, MpegEncContext s, int type)
static void	encode_mb_hq (MpegEncContext s, MpegEncContext backup, MpegEncContext best, int type, 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 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)
void	denoise_dct_c (MpegEncContext s, DCTELEM block)
int	dct_quantize_trellis_c (MpegEncContext s, DCTELEM block, int n, int qscale, int *overflow)
static void	build_basis (uint8_t *perm)
int	dct_quantize_c (MpegEncContext s, DCTELEM block, int n, int qscale, int *overflow)
Variables
static const uint16_t	aanscales [64]
static uint8_t	default_mv_penalty [MAX_FCODE+1][MAX_MV *2+1]
static uint8_t	default_fcode_tab [MAX_MV *2+1]
enum PixelFormat	ff_yuv420p_list [2] = {PIX_FMT_YUV420P, -1}
static int16_t	basis [64][64]
AVCodec	h263_encoder
AVCodec	h263p_encoder
AVCodec	flv_encoder
AVCodec	rv10_encoder
AVCodec	rv20_encoder
AVCodec	mpeg4_encoder
AVCodec	msmpeg4v1_encoder
AVCodec	msmpeg4v2_encoder
AVCodec	msmpeg4v3_encoder
AVCodec	wmv1_encoder

mpegvideo_enc.c File Reference

Detailed Description

Functions

Variables

Function Documentation

Variable Documentation