#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "libavutil/lfg.h"
#include "elbg.h"
#include "internal.h"
#include "libavutil/avassert.h"
#include "libavutil/opt.h"

Data Structures
struct	mb_info

struct	strip_info

struct	CinepakEncContext

Macros
#define	CVID_HEADER_SIZE 10

#define	STRIP_HEADER_SIZE 12

#define	CHUNK_HEADER_SIZE 4

#define	MB_SIZE 4

#define	MB_AREA (MB_SIZE*MB_SIZE)

#define	VECTOR_MAX 6

#define	CODEBOOK_MAX 256

#define	MAX_STRIPS 32

#define	MIN_STRIPS 1

#define	OFFSET(x) offsetof(CinepakEncContext, x)

#define	VE AV_OPT_FLAG_VIDEO_PARAM \| AV_OPT_FLAG_ENCODING_PARAM

#define	CERTAIN(x) ((x)!=ENC_UNCERTAIN)

#define	SMALLEST_CODEBOOK 1

Enumerations
enum	CinepakMode { MODE_V1_ONLY = 0, MODE_V1_V4, MODE_MC, MODE_COUNT }

enum	mb_encoding { ENC_V1, ENC_V4, ENC_SKIP, ENC_UNCERTAIN }

Functions
static av_cold int	cinepak_encode_init (AVCodecContext *avctx)

static int64_t	calculate_mode_score (CinepakEncContext s, int h, strip_info info, int report, int training_set_v1_shrunk, int training_set_v4_shrunk)

static int	write_chunk_header (unsigned char *buf, int chunk_type, int chunk_size)

static int	encode_codebook (CinepakEncContext s, int codebook, int size, int chunk_type_yuv, int chunk_type_gray, unsigned char *buf)

static void	get_sub_picture (CinepakEncContext s, int x, int y, AVPicture in, AVPicture *out)

static void	decode_v1_vector (CinepakEncContext s, AVPicture sub_pict, int v1_vector, strip_info *info)

static void	decode_v4_vector (CinepakEncContext s, AVPicture sub_pict, int v4_vector, strip_info info)

static void	copy_mb (CinepakEncContext s, AVPicture a, AVPicture *b)

static int	encode_mode (CinepakEncContext s, int h, AVPicture scratch_pict, AVPicture last_pict, strip_info info, unsigned char *buf)

static int	compute_mb_distortion (CinepakEncContext s, AVPicture a, AVPicture *b)

static int	quantize (CinepakEncContext s, int h, AVPicture pict, int v1mode, strip_info *info, mb_encoding encoding)

static void	calculate_skip_errors (CinepakEncContext s, int h, AVPicture last_pict, AVPicture pict, strip_info info)

static void	write_strip_header (CinepakEncContext s, int y, int h, int keyframe, unsigned char buf, int strip_size)

static int	rd_strip (CinepakEncContext s, int y, int h, int keyframe, AVPicture last_pict, AVPicture pict, AVPicture scratch_pict, unsigned char buf, int64_t best_score)

static int	write_cvid_header (CinepakEncContext s, unsigned char buf, int num_strips, int data_size, int isakeyframe)

static int	rd_frame (CinepakEncContext s, const AVFrame frame, int isakeyframe, unsigned char *buf, int buf_size)

static int	cinepak_encode_frame (AVCodecContext avctx, AVPacket pkt, const AVFrame frame, int got_packet)

static av_cold int	cinepak_encode_end (AVCodecContext *avctx)

Variables
static const AVOption	options []

static const AVClass	cinepak_class

AVCodec	ff_cinepak_encoder

Macro Definition Documentation

#define CVID_HEADER_SIZE 10

Definition at line 82 of file cinepakenc.c.

Referenced by cinepak_encode_init(), rd_frame(), and write_cvid_header().

#define STRIP_HEADER_SIZE 12

Definition at line 83 of file cinepakenc.c.

Referenced by cinepak_encode_init(), rd_strip(), and write_strip_header().

#define CHUNK_HEADER_SIZE 4

Definition at line 84 of file cinepakenc.c.

Referenced by calculate_mode_score(), cinepak_encode_init(), encode_mode(), and write_chunk_header().

#define MB_SIZE 4

Definition at line 86 of file cinepakenc.c.

Referenced by calculate_skip_errors(), compute_mb_distortion(), copy_mb(), decode_frame(), encode_blocks(), encode_frame(), encode_init(), encode_mode(), ff_snow_common_init_after_header(), ff_snow_pred_block(), get_4block_rd(), get_dc(), iterative_me(), predict_slice_buffered(), quantize(), and rd_frame().

#define MB_AREA (MB_SIZE*MB_SIZE)

Definition at line 87 of file cinepakenc.c.

Referenced by calculate_mode_score(), cinepak_encode_init(), encode_mode(), quantize(), and rd_strip().

#define VECTOR_MAX 6

Definition at line 89 of file cinepakenc.c.

Referenced by cinepak_encode_init().

#define CODEBOOK_MAX 256

Definition at line 90 of file cinepakenc.c.

Referenced by cinepak_encode_init(), and rd_strip().

#define MAX_STRIPS 32

Definition at line 92 of file cinepakenc.c.

#define MIN_STRIPS 1

Definition at line 93 of file cinepakenc.c.

#define OFFSET ( x ) offsetof(CinepakEncContext, x)

Definition at line 168 of file cinepakenc.c.

#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 169 of file cinepakenc.c.

#define CERTAIN ( x ) ((x)!=ENC_UNCERTAIN)

Definition at line 784 of file cinepakenc.c.

Referenced by quantize().

#define SMALLEST_CODEBOOK 1

Referenced by rd_strip().

Enumeration Type Documentation

enum CinepakMode

Enumerator:

MODE_V1_ONLY
MODE_V1_V4
MODE_MC
MODE_COUNT

Definition at line 103 of file cinepakenc.c.

enum mb_encoding

Enumerator:

ENC_V1
ENC_V4
ENC_SKIP
ENC_UNCERTAIN

Definition at line 111 of file cinepakenc.c.

Function Documentation

static av_cold int cinepak_encode_init ( AVCodecContext * avctx )

static

Definition at line 186 of file cinepakenc.c.

static int64_t calculate_mode_score	(	CinepakEncContext *	s,
		int	h,
		strip_info *	info,
		int	report,
		int *	training_set_v1_shrunk,
		int *	training_set_v4_shrunk
	)

static

Definition at line 314 of file cinepakenc.c.

Referenced by rd_strip().

static int write_chunk_header	(	unsigned char *	buf,
		int	chunk_type,
		int	chunk_size
	)

static

Definition at line 475 of file cinepakenc.c.

Referenced by encode_codebook(), and encode_mode().

static int encode_codebook	(	CinepakEncContext *	s,
		int *	codebook,
		int	size,
		int	chunk_type_yuv,
		int	chunk_type_gray,
		unsigned char *	buf
	)

static

Definition at line 482 of file cinepakenc.c.

Referenced by encode_mode().

static void get_sub_picture	(	CinepakEncContext *	s,
		int	x,
		int	y,
		AVPicture *	in,
		AVPicture *	out
	)

static

Definition at line 528 of file cinepakenc.c.

Referenced by calculate_skip_errors(), encode_mode(), quantize(), and rd_frame().

static void decode_v1_vector	(	CinepakEncContext *	s,
		AVPicture *	sub_pict,
		int	v1_vector,
		strip_info *	info
	)

static

Definition at line 543 of file cinepakenc.c.

Referenced by encode_mode(), and quantize().

static void decode_v4_vector	(	CinepakEncContext *	s,
		AVPicture *	sub_pict,
		int *	v4_vector,
		strip_info *	info
	)

static

Definition at line 581 of file cinepakenc.c.

Referenced by encode_mode(), and quantize().

static void copy_mb	(	CinepakEncContext *	s,
		AVPicture *	a,
		AVPicture *	b
	)

static

Definition at line 600 of file cinepakenc.c.

Referenced by encode_mode(), and mjpeg_decode_scan().

static int encode_mode	(	CinepakEncContext *	s,
		int	h,
		AVPicture *	scratch_pict,
		AVPicture *	last_pict,
		strip_info *	info,
		unsigned char *	buf
	)

static

Definition at line 620 of file cinepakenc.c.

Referenced by rd_strip().

static int compute_mb_distortion	(	CinepakEncContext *	s,
		AVPicture *	a,
		AVPicture *	b
	)

static

Definition at line 758 of file cinepakenc.c.

Referenced by calculate_skip_errors(), and quantize().

static int quantize	(	CinepakEncContext *	s,
		int	h,
		AVPicture *	pict,
		int	v1mode,
		strip_info *	info,
		mb_encoding	encoding
	)

static

Definition at line 785 of file cinepakenc.c.

Referenced by rd_strip().

static void calculate_skip_errors	(	CinepakEncContext *	s,
		int	h,
		AVPicture *	last_pict,
		AVPicture *	pict,
		strip_info *	info
	)

static

Definition at line 905 of file cinepakenc.c.

Referenced by rd_strip().

static void write_strip_header	(	CinepakEncContext *	s,
		int	y,
		int	h,
		int	keyframe,
		unsigned char *	buf,
		int	strip_size
	)

static

Definition at line 920 of file cinepakenc.c.

Referenced by rd_strip().

static int rd_strip	(	CinepakEncContext *	s,
		int	y,
		int	h,
		int	keyframe,
		AVPicture *	last_pict,
		AVPicture *	pict,
		AVPicture *	scratch_pict,
		unsigned char *	buf,
		int64_t *	best_score
	)

static

Definition at line 938 of file cinepakenc.c.

Referenced by rd_frame().

static int write_cvid_header	(	CinepakEncContext *	s,
		unsigned char *	buf,
		int	num_strips,
		int	data_size,
		int	isakeyframe
	)

static

Definition at line 1110 of file cinepakenc.c.

Referenced by rd_frame().

static int rd_frame	(	CinepakEncContext *	s,
		const AVFrame *	frame,
		int	isakeyframe,
		unsigned char *	buf,
		int	buf_size
	)

static

Definition at line 1121 of file cinepakenc.c.

Referenced by cinepak_encode_frame().

static int cinepak_encode_frame	(	AVCodecContext *	avctx,
		AVPacket *	pkt,
		const AVFrame *	frame,
		int *	got_packet
	)

static

Definition at line 1268 of file cinepakenc.c.

static av_cold int cinepak_encode_end ( AVCodecContext * avctx )

static

Definition at line 1294 of file cinepakenc.c.

Variable Documentation

const AVOption options[]

static

Initial value:

= {
    { "max_extra_cb_iterations", "Max extra codebook recalculation passes, more is better and slower", OFFSET(max_extra_cb_iterations), AV_OPT_TYPE_INT, { .i64 = 2 }, 0, INT_MAX, VE },
    { "skip_empty_cb", "Avoid wasting bytes, ignore vintage MacOS decoder", OFFSET(skip_empty_cb), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
    { "max_strips", "Limit strips/frame, vintage compatible is 1..3, otherwise the more the better", OFFSET(max_max_strips), AV_OPT_TYPE_INT, { .i64 = 3 }, MIN_STRIPS, MAX_STRIPS, VE },
    { "min_strips", "Enforce min strips/frame, more is worse and faster, must be <= max_strips", OFFSET(min_min_strips), AV_OPT_TYPE_INT, { .i64 = MIN_STRIPS }, MIN_STRIPS, MAX_STRIPS, VE },
    { "strip_number_adaptivity", "How fast the strip number adapts, more is slightly better, much slower", OFFSET(strip_number_delta_range), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, MAX_STRIPS-MIN_STRIPS, VE },
    { NULL },
}

Definition at line 170 of file cinepakenc.c.

const AVClass cinepak_class

static

Initial value:

= {
    .class_name = "cinepak",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 179 of file cinepakenc.c.

AVCodec ff_cinepak_encoder

Initial value:

= {
    .name           = "cinepak",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_CINEPAK,
    .priv_data_size = sizeof(CinepakEncContext),
    .init           = cinepak_encode_init,
    .encode2        = cinepak_encode_frame,
    .close          = cinepak_encode_end,
    .pix_fmts       = (const enum AVPixelFormat[]){AV_PIX_FMT_RGB24, AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE},
    .long_name      = NULL_IF_CONFIG_SMALL("Cinepak / CVID"),
    .priv_class     = &cinepak_class,
}

Definition at line 1324 of file cinepakenc.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation