mpegvideo_enc.c File Reference

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

#include <stdint.h>
#include "libavutil/internal.h"
#include "libavutil/intmath.h"
#include "libavutil/mathematics.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "libavutil/timer.h"
#include "avcodec.h"
#include "dct.h"
#include "idctdsp.h"
#include "mpeg12.h"
#include "mpegvideo.h"
#include "mpegvideodata.h"
#include "h261.h"
#include "h263.h"
#include "h263data.h"
#include "mjpegenc_common.h"
#include "mathops.h"
#include "mpegutils.h"
#include "mjpegenc.h"
#include "msmpeg4.h"
#include "pixblockdsp.h"
#include "qpeldsp.h"
#include "faandct.h"
#include "thread.h"
#include "aandcttab.h"
#include "flv.h"
#include "mpeg4video.h"
#include "internal.h"
#include "bytestream.h"
#include "wmv2.h"
#include "rv10.h"
#include <limits.h>
#include "sp5x.h"

Go to the source code of this file.

Macros
#define	QUANT_BIAS_SHIFT   8
#define	QMAT_SHIFT_MMX   16
#define	QMAT_SHIFT   21
#define	COPY(a)   dst->a= src->a
#define	MERGE(field)   dst->field += src->field; src->field=0
#define	OFFSET(x)   offsetof(MpegEncContext, x)
#define	VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Functions
static int	encode_picture (MpegEncContext *s, int picture_number)
static int	dct_quantize_refine (MpegEncContext *s, int16_t *block, int16_t *weight, int16_t *orig, int n, int qscale)
static int	sse_mb (MpegEncContext *s)
static void	denoise_dct_c (MpegEncContext *s, int16_t *block)
static int	dct_quantize_trellis_c (MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
void	ff_convert_matrix (MpegEncContext *s, 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)
void	ff_init_qscale_tab (MpegEncContext *s)
	init s->current_picture.qscale_table from s->lambda_table More...
static void	update_duplicate_context_after_me (MpegEncContext *dst, MpegEncContext *src)
static void	mpv_encode_defaults (MpegEncContext *s)
	Set the given MpegEncContext to defaults for encoding. More...
av_cold int	ff_dct_encode_init (MpegEncContext *s)
av_cold int	ff_mpv_encode_init (AVCodecContext *avctx)
av_cold int	ff_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	alloc_picture (MpegEncContext *s, Picture *pic, int shared)
static int	load_input_picture (MpegEncContext *s, const AVFrame *pic_arg)
static int	skip_check (MpegEncContext *s, Picture *p, Picture *ref)
static int	encode_frame (AVCodecContext *c, AVFrame *frame)
static int	estimate_best_b_count (MpegEncContext *s)
static int	select_input_picture (MpegEncContext *s)
static void	frame_end (MpegEncContext *s)
static void	update_noise_reduction (MpegEncContext *s)
static int	frame_start (MpegEncContext *s)
int	ff_mpv_encode_picture (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic_arg, int *got_packet)
static void	dct_single_coeff_elimination (MpegEncContext *s, int n, int threshold)
static void	clip_coeffs (MpegEncContext *s, int16_t *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_width, 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 void	write_mb_info (MpegEncContext *s)
static void	update_mb_info (MpegEncContext *s, int startcode)
int	ff_mpv_reallocate_putbitbuffer (MpegEncContext *s, size_t threshold, size_t size_increase)
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)
static void	build_basis (uint8_t *perm)
void	ff_block_permute (int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
	Permute an 8x8 block according to permutation. More...
int	ff_dct_quantize_c (MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)

Variables
static uint8_t	default_mv_penalty [MAX_FCODE+1][MAX_DMV *2+1]
static uint8_t	default_fcode_tab [MAX_MV *2+1]
const AVOption	ff_mpv_generic_options []
static int16_t	basis [64][64]
static const AVOption	h263_options []
static const AVClass	h263_class
AVCodec	ff_h263_encoder
static const AVOption	h263p_options []
static const AVClass	h263p_class
AVCodec	ff_h263p_encoder
static const AVClass	msmpeg4v2_class
AVCodec	ff_msmpeg4v2_encoder
static const AVClass	msmpeg4v3_class
AVCodec	ff_msmpeg4v3_encoder
static const AVClass	wmv1_class
AVCodec	ff_wmv1_encoder

Detailed Description

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

Definition in file mpegvideo_enc.c.

Macro Definition Documentation

#define QUANT_BIAS_SHIFT   8

Definition at line 70 of file mpegvideo_enc.c.

Referenced by ff_convert_matrix(), ff_dct_quantize_c(), and ff_mpv_encode_init().

#define QMAT_SHIFT_MMX   16

Definition at line 72 of file mpegvideo_enc.c.

Referenced by ff_convert_matrix().

#define QMAT_SHIFT   21

Definition at line 73 of file mpegvideo_enc.c.

Referenced by dct_quantize_trellis_c(), ff_convert_matrix(), and ff_dct_quantize_c().

#define COPY

(

a

)

dst->a= src->a

Referenced by update_duplicate_context_after_me().

#define MERGE

(

field

)

dst->field += src->field; src->field=0

Definition at line 3587 of file mpegvideo_enc.c.

Referenced by merge_context_after_encode(), and merge_context_after_me().

#define OFFSET

(

x

)

offsetof(MpegEncContext, x)

Definition at line 4804 of file mpegvideo_enc.c.

#define VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 4805 of file mpegvideo_enc.c.

Function Documentation

static int encode_picture ( MpegEncContext *  s, int  picture_number  )

static

Definition at line 3677 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_picture().

static int dct_quantize_refine ( MpegEncContext *  s, int16_t *  block, int16_t *  weight, int16_t *  orig, int  n, int  qscale  )

static

Definition at line 4307 of file mpegvideo_enc.c.

Referenced by encode_mb_internal().

static int sse_mb ( MpegEncContext *  s )

static

Definition at line 2745 of file mpegvideo_enc.c.

Referenced by encode_mb_hq().

static void denoise_dct_c ( MpegEncContext *  s, int16_t *  block  )

static

Definition at line 3952 of file mpegvideo_enc.c.

Referenced by ff_dct_encode_init().

static int dct_quantize_trellis_c ( MpegEncContext *  s, int16_t *  block, int  n, int  qscale, int *  overflow  )

static

Definition at line 3976 of file mpegvideo_enc.c.

Referenced by ff_dct_encode_init().

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

Definition at line 89 of file mpegvideo_enc.c.

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

static void update_qscale ( MpegEncContext *  s )

inlinestatic

Definition at line 173 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 201 of file mpegvideo_enc.c.

Referenced by mpeg1_encode_sequence_header(), and mpeg4_encode_vol_header().

void ff_init_qscale_tab

(

MpegEncContext *

s

)

init s->current_picture.qscale_table from s->lambda_table

Definition at line 217 of file mpegvideo_enc.c.

Referenced by estimate_qp(), and ff_clean_h263_qscales().

static void update_duplicate_context_after_me ( MpegEncContext *  dst, MpegEncContext *  src  )

static

Definition at line 230 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void mpv_encode_defaults ( MpegEncContext *  s )

static

Set the given MpegEncContext to defaults for encoding.

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

Definition at line 253 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_init().

av_cold int ff_dct_encode_init

(

MpegEncContext *

s

)

Definition at line 268 of file mpegvideo_enc.c.

Referenced by dnxhd_encode_init(), and ff_mpv_encode_init().

av_cold int ff_mpv_encode_init

(

AVCodecContext *

avctx

)

Definition at line 286 of file mpegvideo_enc.c.

Referenced by encode_init(), and wmv2_encode_init().

av_cold int ff_mpv_encode_end

(

AVCodecContext *

avctx

)

Definition at line 1120 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_init(), and mpeg12_class().

static int get_sae ( uint8_t *  src, int  ref, int  stride  )

static

Definition at line 1158 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 1172 of file mpegvideo_enc.c.

Referenced by select_input_picture().

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

static

Definition at line 1195 of file mpegvideo_enc.c.

Referenced by load_input_picture(), and select_input_picture().

static int load_input_picture ( MpegEncContext *  s, const AVFrame *  pic_arg  )

static

Definition at line 1203 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_picture().

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

static

Definition at line 1354 of file mpegvideo_enc.c.

Referenced by select_input_picture().

static int encode_frame ( AVCodecContext *  c, AVFrame *  frame  )

static

Definition at line 1395 of file mpegvideo_enc.c.

Referenced by estimate_best_b_count().

static int estimate_best_b_count ( MpegEncContext *  s )

static

Definition at line 1410 of file mpegvideo_enc.c.

Referenced by select_input_picture().

static int select_input_picture ( MpegEncContext *  s )

static

Definition at line 1527 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_picture().

static void frame_end ( MpegEncContext *  s )

static

Definition at line 1701 of file mpegvideo_enc.c.

Referenced by bethsoftvid_decode_frame(), bfi_decode_frame(), decode_bmv_frame(), decode_dds1(), decode_dsw1(), decode_tdlt(), decode_tsw1(), decode_wdlt(), ff_h263_decode_frame(), ff_mpv_encode_picture(), get_duration(), gif_read_packet(), and write_subframes().

static void update_noise_reduction ( MpegEncContext *  s )

static

Definition at line 1751 of file mpegvideo_enc.c.

Referenced by frame_start().

static int frame_start ( MpegEncContext *  s )

static

Definition at line 1772 of file mpegvideo_enc.c.

Referenced by av_timecode_init(), decode_dds1(), decode_dsw1(), decode_tsw1(), ff_mpv_encode_picture(), get_duration(), and gif_read_packet().

int ff_mpv_encode_picture	(	AVCodecContext *	avctx,
		AVPacket *	pkt,
		const AVFrame *	pic_arg,
		int *	got_packet
	)

Definition at line 1844 of file mpegvideo_enc.c.

Referenced by amv_encode_picture(), and mpeg12_class().

static void dct_single_coeff_elimination ( MpegEncContext *  s, int  n, int  threshold  )

inlinestatic

Definition at line 2105 of file mpegvideo_enc.c.

Referenced by encode_mb_internal().

static void clip_coeffs ( MpegEncContext *  s, int16_t *  block, int  last_index  )

inlinestatic

Definition at line 2161 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 2195 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_width, int  mb_block_count  )

static

Definition at line 2219 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 2599 of file mpegvideo_enc.c.

Referenced by encode_mb_hq(), and encode_thread().

static void copy_context_before_encode ( MpegEncContext *  d, MpegEncContext *  s, int  type  )

inlinestatic

Definition at line 2606 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  )

inlinestatic

Definition at line 2634 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  )

inlinestatic

Definition at line 2673 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 2724 of file mpegvideo_enc.c.

Referenced by block_sse(), encode_thread(), ff_libwebp_get_frame(), ff_showcqt_init_x86(), ff_vp9dsp_init_16bpp_x86(), ff_vp9dsp_init_x86(), main(), run_psnr(), sse_16width_msa(), sse_4width_msa(), sse_8width_msa(), and sse_mb().

static int pre_estimate_motion_thread ( AVCodecContext *  c, void *  arg  )

static

Definition at line 2768 of file mpegvideo_enc.c.

Referenced by encode_picture().

static int estimate_motion_thread ( AVCodecContext *  c, void *  arg  )

static

Definition at line 2787 of file mpegvideo_enc.c.

Referenced by encode_picture().

static int mb_var_thread ( AVCodecContext *  c, void *  arg  )

static

Definition at line 2814 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void write_slice_end ( MpegEncContext *  s )

static

Definition at line 2839 of file mpegvideo_enc.c.

Referenced by encode_thread().

static void write_mb_info ( MpegEncContext *  s )

static

Definition at line 2857 of file mpegvideo_enc.c.

Referenced by update_mb_info().

static void update_mb_info ( MpegEncContext *  s, int  startcode  )

static

Definition at line 2877 of file mpegvideo_enc.c.

Referenced by encode_thread().

int ff_mpv_reallocate_putbitbuffer	(	MpegEncContext *	s,
		size_t	threshold,
		size_t	size_increase
	)

Definition at line 2900 of file mpegvideo_enc.c.

Referenced by encode_thread(), and ff_mjpeg_encode_stuffing().

static int encode_thread ( AVCodecContext *  c, void *  arg  )

static

Definition at line 2936 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void merge_context_after_me ( MpegEncContext *  dst, MpegEncContext *  src  )

static

Definition at line 3588 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void merge_context_after_encode ( MpegEncContext *  dst, MpegEncContext *  src  )

static

Definition at line 3594 of file mpegvideo_enc.c.

Referenced by encode_picture().

static int estimate_qp ( MpegEncContext *  s, int  dry_run  )

static

Definition at line 3626 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void set_frame_distances ( MpegEncContext *  s )

static

Definition at line 3663 of file mpegvideo_enc.c.

Referenced by encode_picture().

static void build_basis ( uint8_t *  perm )

static

Definition at line 4288 of file mpegvideo_enc.c.

Referenced by dct_quantize_refine().

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

Permute an 8x8 block according to permutation.

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 4698 of file mpegvideo_enc.c.

Referenced by dnxhd_10bit_dct_quantize(), and ff_dct_quantize_c().

int ff_dct_quantize_c	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale,
		int *	overflow
	)

Definition at line 4723 of file mpegvideo_enc.c.

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

Variable Documentation

uint8_t default_mv_penalty[MAX_FCODE+1][MAX_DMV *2+1]

static

Definition at line 81 of file mpegvideo_enc.c.

Referenced by mpv_encode_defaults().

uint8_t default_fcode_tab[MAX_MV *2+1]

static

Definition at line 82 of file mpegvideo_enc.c.

Referenced by mpv_encode_defaults().

const AVOption ff_mpv_generic_options[]

Initial value:

= {
    FF_MPV_COMMON_OPTS
    { NULL },
}

Definition at line 84 of file mpegvideo_enc.c.

int16_t basis[64][64]

static

Definition at line 4286 of file mpegvideo_enc.c.

Referenced by add_8x8basis_TMPL(), and try_8x8basis_TMPL().

const AVOption h263_options[]

static

Initial value:

= {
    { "obmc",         "use overlapped block motion compensation.", OFFSET(obmc), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
    { "mb_info",      "emit macroblock info for RFC 2190 packetization, the parameter value is the maximum payload size", OFFSET(mb_info), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
    FF_MPV_COMMON_OPTS
    { NULL },
}

Definition at line 4806 of file mpegvideo_enc.c.

const AVClass h263_class

static

Initial value:

= {
    .class_name = "H.263 encoder",
    .item_name  = av_default_item_name,
    .option     = h263_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 4813 of file mpegvideo_enc.c.

AVCodec ff_h263_encoder

Initial value:

= {
    .name           = "h263",
    .long_name      = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_H263,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_mpv_encode_init,
    .encode2        = ff_mpv_encode_picture,
    .close          = ff_mpv_encode_end,
    .pix_fmts= (const enum AVPixelFormat[]){AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE},
    .priv_class     = &h263_class,
}

Definition at line 4820 of file mpegvideo_enc.c.

const AVOption h263p_options[]

static

Initial value:

= {
    { "umv",        "Use unlimited motion vectors.",    OFFSET(umvplus),       AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
    { "aiv",        "Use alternative inter VLC.",       OFFSET(alt_inter_vlc), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
    { "obmc",       "use overlapped block motion compensation.", OFFSET(obmc), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
    { "structured_slices", "Write slice start position at every GOB header instead of just GOB number.", OFFSET(h263_slice_structured), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE},
    FF_MPV_COMMON_OPTS
    { NULL },
}

Definition at line 4833 of file mpegvideo_enc.c.

const AVClass h263p_class

static

Initial value:

= {
    .class_name = "H.263p encoder",
    .item_name  = av_default_item_name,
    .option     = h263p_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 4841 of file mpegvideo_enc.c.

AVCodec ff_h263p_encoder

Initial value:

= {
    .name           = "h263p",
    .long_name      = NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_H263P,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_mpv_encode_init,
    .encode2        = ff_mpv_encode_picture,
    .close          = ff_mpv_encode_end,
    .capabilities   = AV_CODEC_CAP_SLICE_THREADS,
    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
    .priv_class     = &h263p_class,
}

Definition at line 4848 of file mpegvideo_enc.c.

const AVClass msmpeg4v2_class

static

Initial value:

= {
    .class_name = "msmpeg4v2 encoder",
    .item_name  = av_default_item_name,
    .option     = ff_mpv_generic_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 4862 of file mpegvideo_enc.c.

AVCodec ff_msmpeg4v2_encoder

Initial value:

= {
    .name           = "msmpeg4v2",
    .long_name      = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_MSMPEG4V2,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_mpv_encode_init,
    .encode2        = ff_mpv_encode_picture,
    .close          = ff_mpv_encode_end,
    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
    .priv_class     = &msmpeg4v2_class,
}

Definition at line 4869 of file mpegvideo_enc.c.

const AVClass msmpeg4v3_class

static

Initial value:

= {
    .class_name = "msmpeg4v3 encoder",
    .item_name  = av_default_item_name,
    .option     = ff_mpv_generic_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 4882 of file mpegvideo_enc.c.

AVCodec ff_msmpeg4v3_encoder

Initial value:

= {
    .name           = "msmpeg4",
    .long_name      = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_MSMPEG4V3,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_mpv_encode_init,
    .encode2        = ff_mpv_encode_picture,
    .close          = ff_mpv_encode_end,
    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
    .priv_class     = &msmpeg4v3_class,
}

Definition at line 4889 of file mpegvideo_enc.c.

const AVClass wmv1_class

static

Initial value:

= {
    .class_name = "wmv1 encoder",
    .item_name  = av_default_item_name,
    .option     = ff_mpv_generic_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 4902 of file mpegvideo_enc.c.

AVCodec ff_wmv1_encoder

Initial value:

= {
    .name           = "wmv1",
    .long_name      = NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_WMV1,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_mpv_encode_init,
    .encode2        = ff_mpv_encode_picture,
    .close          = ff_mpv_encode_end,
    .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
    .priv_class     = &wmv1_class,
}

Definition at line 4909 of file mpegvideo_enc.c.