#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "dv.h"
#include "dv_profile_internal.h"
#include "dv_tablegen.h"
#include "fdctdsp.h"
#include "internal.h"
#include "mathops.h"
#include "me_cmp.h"
#include "pixblockdsp.h"
#include "put_bits.h"

Data Structures
struct	EncBlockInfo

Macros
#define	DV100_SACRIFICE_QUALITY_FOR_SPEED 1

#define	DV100_ENABLE_FINER 1

#define	DV100_MAKE_QLEVEL(qno, cno) ((qno<<2) \| (cno))

#define	DV100_QLEVEL_QNO(qlevel) (qlevel>>2)

#define	DV100_QLEVEL_CNO(qlevel) (qlevel&0x3)

#define	DV100_NUM_QLEVELS 31

#define	VE AV_OPT_FLAG_VIDEO_PARAM \| AV_OPT_FLAG_ENCODING_PARAM

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

Functions
static av_cold int	dvvideo_encode_init (AVCodecContext *avctx)

static av_always_inline int	dv_rl2vlc (int run, int l, int sign, uint32_t *vlc)

static av_always_inline int	dv_rl2vlc_size (int run, int l)

static av_always_inline PutBitContext *	dv_encode_ac (EncBlockInfo bi, PutBitContext pb_pool, PutBitContext *pb_end)

static av_always_inline int	dv_guess_dct_mode (DVVideoContext s, uint8_t data, ptrdiff_t linesize)

static av_always_inline int	dv_set_class_number_sd (DVVideoContext s, int16_t blk, EncBlockInfo bi, const uint8_t zigzag_scan, const int *weight, int bias)

static void	dv_set_class_number_hd (DVVideoContext s, int16_t blk, EncBlockInfo bi, const uint8_t zigzag_scan, const int *weight, int bias)

static av_always_inline int	dv_init_enc_block (EncBlockInfo bi, uint8_t data, int linesize, DVVideoContext *s, int chroma)

static av_always_inline int	dv100_quantize (int level, int qsinv)

static int	dv100_actual_quantize (EncBlockInfo *b, int qlevel)

static void	dv_guess_qnos_hd (EncBlockInfo blks, int qnos)

static void	dv_guess_qnos (EncBlockInfo blks, int qnos)

static void	dv_revise_cnos (uint8_t dif, EncBlockInfo blk, const AVDVProfile *profile)

static int	dv_encode_video_segment (AVCodecContext avctx, void arg)

static int	dv_write_pack (enum dv_pack_type pack_id, DVVideoContext c, uint8_t buf)

static int	dv_write_dif_id (enum dv_section_type t, uint8_t chan_num, uint8_t seq_num, uint8_t dif_num, uint8_t *buf)

static int	dv_write_ssyb_id (uint8_t syb_num, uint8_t fr, uint8_t *buf)

static void	dv_format_frame (DVVideoContext c, uint8_t buf)

static int	dvvideo_encode_frame (AVCodecContext c, AVPacket pkt, const AVFrame frame, int got_packet)

Variables
static const int	vs_total_ac_bits_hd = (68 * 6 + 522) 5

static const int	vs_total_ac_bits = (100 * 4 + 68 * 2) * 5

static const int	mb_area_start [5] = { 1, 6, 21, 43, 64 }

static const int	dv_weight_bits = 18

static const int	dv_weight_88 [64]

static const int	dv_weight_248 [64]

static const uint8_t	dv100_qlevels [DV100_NUM_QLEVELS]

static const int	dv100_min_bias = 0

static const int	dv100_chroma_bias = 0

static const int	dv100_starting_qno = 1

static const int	dv100_qlevel_inc = 4

static const int	dv100_qstep_bits = 16

static const int	dv100_qstep_inv [16]

static const int	dv100_weight_shift = 16

static const int	dv_weight_1080 [2][64]

static const int	dv_weight_720 [2][64]

static const AVOption	dv_options []

static const AVClass	dvvideo_encode_class

AVCodec	ff_dvvideo_encoder

Detailed Description

DV encoder

Definition in file dvenc.c.

Macro Definition Documentation

◆ DV100_SACRIFICE_QUALITY_FOR_SPEED

#define DV100_SACRIFICE_QUALITY_FOR_SPEED 1

Definition at line 251 of file dvenc.c.

◆ DV100_ENABLE_FINER

#define DV100_ENABLE_FINER 1

Definition at line 252 of file dvenc.c.

◆ DV100_MAKE_QLEVEL

#define DV100_MAKE_QLEVEL	(	qno,
		cno
	)	((qno<<2) \| (cno))

Definition at line 255 of file dvenc.c.

◆ DV100_QLEVEL_QNO

#define DV100_QLEVEL_QNO ( qlevel ) (qlevel>>2)

Definition at line 256 of file dvenc.c.

◆ DV100_QLEVEL_CNO

#define DV100_QLEVEL_CNO ( qlevel ) (qlevel&0x3)

Definition at line 257 of file dvenc.c.

◆ DV100_NUM_QLEVELS

#define DV100_NUM_QLEVELS 31

Definition at line 259 of file dvenc.c.

◆ VE

#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 1201 of file dvenc.c.

◆ OFFSET

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

Definition at line 1202 of file dvenc.c.

Function Documentation

◆ dvvideo_encode_init()

static av_cold int dvvideo_encode_init ( AVCodecContext * avctx )

static

Definition at line 47 of file dvenc.c.

◆ dv_rl2vlc()

static av_always_inline int dv_rl2vlc	(	int	run,
		int	l,
		int	sign,
		uint32_t *	vlc
	)

static

Definition at line 135 of file dvenc.c.

Referenced by dv_encode_ac().

◆ dv_rl2vlc_size()

static av_always_inline int dv_rl2vlc_size	(	int	run,
		int	l
	)

static

Definition at line 141 of file dvenc.c.

Referenced by dv100_actual_quantize(), dv_guess_qnos(), and dv_set_class_number_sd().

◆ dv_encode_ac()

static av_always_inline PutBitContext* dv_encode_ac	(	EncBlockInfo *	bi,
		PutBitContext *	pb_pool,
		PutBitContext *	pb_end
	)

static

Definition at line 166 of file dvenc.c.

Referenced by dv_encode_video_segment().

◆ dv_guess_dct_mode()

static av_always_inline int dv_guess_dct_mode	(	DVVideoContext *	s,
		uint8_t *	data,
		ptrdiff_t	linesize
	)

static

Definition at line 212 of file dvenc.c.

Referenced by dv_encode_video_segment(), and dv_init_enc_block().

◆ dv_set_class_number_sd()

static av_always_inline int dv_set_class_number_sd	(	DVVideoContext *	s,
		int16_t *	blk,
		EncBlockInfo *	bi,
		const uint8_t *	zigzag_scan,
		const int *	weight,
		int	bias
	)

static

Definition at line 361 of file dvenc.c.

Referenced by dv_init_enc_block().

◆ dv_set_class_number_hd()

static void dv_set_class_number_hd	(	DVVideoContext *	s,
		int16_t *	blk,
		EncBlockInfo *	bi,
		const uint8_t *	zigzag_scan,
		const int *	weight,
		int	bias
	)

inlinestatic

Definition at line 445 of file dvenc.c.

Referenced by dv_init_enc_block().

◆ dv_init_enc_block()

static av_always_inline int dv_init_enc_block	(	EncBlockInfo *	bi,
		uint8_t *	data,
		int	linesize,
		DVVideoContext *	s,
		int	chroma
	)

static

Definition at line 502 of file dvenc.c.

Referenced by dv_encode_video_segment().

◆ dv100_quantize()

static av_always_inline int dv100_quantize	(	int	level,
		int	qsinv
	)

static

Definition at line 553 of file dvenc.c.

Referenced by dv100_actual_quantize().

◆ dv100_actual_quantize()

static int dv100_actual_quantize	(	EncBlockInfo *	b,
		int	qlevel
	)

static

Definition at line 566 of file dvenc.c.

Referenced by dv_guess_qnos_hd().

◆ dv_guess_qnos_hd()

static void dv_guess_qnos_hd	(	EncBlockInfo *	blks,
		int *	qnos
	)

inlinestatic

Definition at line 604 of file dvenc.c.

Referenced by dv_encode_video_segment().

◆ dv_guess_qnos()

static void dv_guess_qnos	(	EncBlockInfo *	blks,
		int *	qnos
	)

inlinestatic

Definition at line 746 of file dvenc.c.

Referenced by dv_encode_video_segment().

◆ dv_revise_cnos()

static void dv_revise_cnos	(	uint8_t *	dif,
		EncBlockInfo *	blk,
		const AVDVProfile *	profile
	)

inlinestatic

Definition at line 820 of file dvenc.c.

Referenced by dv_encode_video_segment().

◆ dv_encode_video_segment()

static int dv_encode_video_segment	(	AVCodecContext *	avctx,
		void *	arg
	)

static

Definition at line 838 of file dvenc.c.

Referenced by dvvideo_encode_frame().

◆ dv_write_pack()

static int dv_write_pack	(	enum dv_pack_type	pack_id,
		DVVideoContext *	c,
		uint8_t *	buf
	)

inlinestatic

Definition at line 997 of file dvenc.c.

Referenced by dv_format_frame().

◆ dv_write_dif_id()

static int dv_write_dif_id	(	enum dv_section_type	t,
		uint8_t	chan_num,
		uint8_t	seq_num,
		uint8_t	dif_num,
		uint8_t *	buf
	)

inlinestatic

Definition at line 1081 of file dvenc.c.

Referenced by dv_format_frame().

◆ dv_write_ssyb_id()

static int dv_write_ssyb_id	(	uint8_t	syb_num,
		uint8_t	fr,
		uint8_t *	buf
	)

inlinestatic

Definition at line 1097 of file dvenc.c.

Referenced by dv_format_frame().

◆ dv_format_frame()

static void dv_format_frame	(	DVVideoContext *	c,
		uint8_t *	buf
	)

static

Definition at line 1117 of file dvenc.c.

Referenced by dvvideo_encode_frame().

◆ dvvideo_encode_frame()

static int dvvideo_encode_frame	(	AVCodecContext *	c,
		AVPacket *	pkt,
		const AVFrame *	frame,
		int *	got_packet
	)

static

Definition at line 1169 of file dvenc.c.

Variable Documentation

◆ vs_total_ac_bits_hd

const int vs_total_ac_bits_hd = (68 * 6 + 52*2) * 5

static

Definition at line 90 of file dvenc.c.

Referenced by dv_guess_qnos_hd().

◆ vs_total_ac_bits

const int vs_total_ac_bits = (100 * 4 + 68 * 2) * 5

static

Definition at line 91 of file dvenc.c.

Referenced by dv_encode_video_segment(), and dv_guess_qnos().

◆ mb_area_start

const int mb_area_start[5] = { 1, 6, 21, 43, 64 }

static

Definition at line 92 of file dvenc.c.

Referenced by dv_guess_qnos(), and dv_set_class_number_sd().

◆ dv_weight_bits

const int dv_weight_bits = 18

static

Definition at line 227 of file dvenc.c.

Referenced by dv_set_class_number_sd().

◆ dv_weight_88

const int dv_weight_88[64]

static

Initial value:

= {
    131072, 257107, 257107, 242189, 252167, 242189, 235923, 237536,
    237536, 235923, 229376, 231390, 223754, 231390, 229376, 222935,
    224969, 217965, 217965, 224969, 222935, 200636, 218652, 211916,
    212325, 211916, 218652, 200636, 188995, 196781, 205965, 206433,
    206433, 205965, 196781, 188995, 185364, 185364, 200636, 200704,
    200636, 185364, 185364, 174609, 180568, 195068, 195068, 180568,
    174609, 170091, 175557, 189591, 175557, 170091, 165371, 170627,
    170627, 165371, 160727, 153560, 160727, 144651, 144651, 136258,
}

Definition at line 228 of file dvenc.c.

Referenced by dv_init_enc_block().

◆ dv_weight_248

const int dv_weight_248[64]

static

Initial value:

= {
    131072, 262144, 257107, 257107, 242189, 242189, 242189, 242189,
    237536, 237536, 229376, 229376, 200636, 200636, 224973, 224973,
    223754, 223754, 235923, 235923, 229376, 229376, 217965, 217965,
    211916, 211916, 196781, 196781, 185364, 185364, 206433, 206433,
    211916, 211916, 222935, 222935, 200636, 200636, 205964, 205964,
    200704, 200704, 180568, 180568, 175557, 175557, 195068, 195068,
    185364, 185364, 188995, 188995, 174606, 174606, 175557, 175557,
    170627, 170627, 153560, 153560, 165371, 165371, 144651, 144651,
}

Definition at line 238 of file dvenc.c.

Referenced by dv_init_enc_block().

◆ dv100_qlevels

const uint8_t dv100_qlevels[DV100_NUM_QLEVELS]

static

Definition at line 269 of file dvenc.c.

Referenced by dv100_actual_quantize(), and dv_guess_qnos_hd().

◆ dv100_min_bias

const int dv100_min_bias = 0

static

Definition at line 304 of file dvenc.c.

Referenced by dv_init_enc_block().

◆ dv100_chroma_bias

const int dv100_chroma_bias = 0

static

Definition at line 305 of file dvenc.c.

Referenced by dv_init_enc_block().

◆ dv100_starting_qno

const int dv100_starting_qno = 1

static

Definition at line 306 of file dvenc.c.

Referenced by dv_guess_qnos_hd().

◆ dv100_qlevel_inc

const int dv100_qlevel_inc = 4

static

Definition at line 309 of file dvenc.c.

Referenced by dv_guess_qnos_hd().

◆ dv100_qstep_bits

const int dv100_qstep_bits = 16

static

Definition at line 315 of file dvenc.c.

Referenced by dv100_quantize().

◆ dv100_qstep_inv

const int dv100_qstep_inv[16]

static

Initial value:

= {
        65536,  65536,  32768,  21845,  16384,  13107,  10923,  9362,  8192,  4096,  3641,  3277,  2979,  2731,  2341,  1260,
}

Definition at line 316 of file dvenc.c.

Referenced by dv100_actual_quantize().

◆ dv100_weight_shift

const int dv100_weight_shift = 16

static

Definition at line 322 of file dvenc.c.

◆ dv_weight_1080

const int dv_weight_1080[2][64]

static

Initial value:

= {
    { 8192, 65536, 65536, 61681, 61681, 61681, 58254, 58254,
      58254, 58254, 58254, 58254, 55188, 58254, 58254, 55188,
      55188, 55188, 55188, 55188, 55188, 24966, 27594, 26214,
      26214, 26214, 27594, 24966, 23831, 24385, 25575, 25575,
      25575, 25575, 24385, 23831, 23302, 23302, 24966, 24966,
      24966, 23302, 23302, 21845, 22795, 24385, 24385, 22795,
      21845, 21400, 21845, 23831, 21845, 21400, 10382, 10700,
      10700, 10382, 10082, 9620, 10082, 9039, 9039, 8525, },
    { 8192, 65536, 65536, 61681, 61681, 61681, 41943, 41943,
      41943, 41943, 40330, 41943, 40330, 41943, 40330, 40330,
      40330, 38836, 38836, 40330, 40330, 24966, 27594, 26214,
      26214, 26214, 27594, 24966, 23831, 24385, 25575, 25575,
      25575, 25575, 24385, 23831, 11523, 11523, 12483, 12483,
      12483, 11523, 11523, 10923, 11275, 12193, 12193, 11275,
      10923, 5323, 5490, 5924, 5490, 5323, 5165, 5323,
      5323, 5165, 5017, 4788, 5017, 4520, 4520, 4263, }
}

Definition at line 323 of file dvenc.c.

Referenced by dv_init_enc_block().

◆ dv_weight_720

const int dv_weight_720[2][64]

static

Initial value:

= {
    { 8192, 65536, 65536, 61681, 61681, 61681, 58254, 58254,
      58254, 58254, 58254, 58254, 55188, 58254, 58254, 55188,
      55188, 55188, 55188, 55188, 55188, 24966, 27594, 26214,
      26214, 26214, 27594, 24966, 23831, 24385, 25575, 25575,
      25575, 25575, 24385, 23831, 15420, 15420, 16644, 16644,
      16644, 15420, 15420, 10923, 11398, 12193, 12193, 11398,
      10923, 10700, 10923, 11916, 10923, 10700, 5191, 5350,
      5350, 5191, 5041, 4810, 5041, 4520, 4520, 4263, },
    { 8192, 43691, 43691, 40330, 40330, 40330, 29127, 29127,
      29127, 29127, 29127, 29127, 27594, 29127, 29127, 27594,
      27594, 27594, 27594, 27594, 27594, 12483, 13797, 13107,
      13107, 13107, 13797, 12483, 11916, 12193, 12788, 12788,
      12788, 12788, 12193, 11916, 5761, 5761, 6242, 6242,
      6242, 5761, 5761, 5461, 5638, 5461, 6096, 5638,
      5461, 2661, 2745, 2962, 2745, 2661, 2583, 2661,
      2661, 2583, 2509, 2394, 2509, 2260, 2260, 2131, }
}

Definition at line 342 of file dvenc.c.

Referenced by dv_init_enc_block().

◆ dv_options

const AVOption dv_options[]

static

Initial value:

= {
    { "quant_deadzone",        "Quantizer dead zone",    OFFSET(quant_deadzone),       AV_OPT_TYPE_INT, { .i64 = 7 }, 0, 1024, VE },
    { NULL },
}

Definition at line 1203 of file dvenc.c.

◆ dvvideo_encode_class

const AVClass dvvideo_encode_class

static

Initial value:

= {
    .class_name = "dvvideo encoder",
    .item_name  = av_default_item_name,
    .option     = dv_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 1208 of file dvenc.c.

◆ ff_dvvideo_encoder

AVCodec ff_dvvideo_encoder

Initial value:

= {
    .name           = "dvvideo",
    .long_name      = NULL_IF_CONFIG_SMALL("DV (Digital Video)"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_DVVIDEO,
    .priv_data_size = sizeof(DVVideoContext),
    .init           = dvvideo_encode_init,
    .encode2        = dvvideo_encode_frame,
    .capabilities   = AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS,
    .pix_fmts       = (const enum AVPixelFormat[]) {
        AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV422P,
        AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE
    },
    .priv_class     = &dvvideo_encode_class,
}

Definition at line 1215 of file dvenc.c.

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ DV100_SACRIFICE_QUALITY_FOR_SPEED

◆ DV100_ENABLE_FINER

◆ DV100_MAKE_QLEVEL

◆ DV100_QLEVEL_QNO

◆ DV100_QLEVEL_CNO

◆ DV100_NUM_QLEVELS

◆ VE

◆ OFFSET

Function Documentation

◆ dvvideo_encode_init()

◆ dv_rl2vlc()

◆ dv_rl2vlc_size()

◆ dv_encode_ac()

◆ dv_guess_dct_mode()

◆ dv_set_class_number_sd()

◆ dv_set_class_number_hd()

◆ dv_init_enc_block()

◆ dv100_quantize()

◆ dv100_actual_quantize()

◆ dv_guess_qnos_hd()

◆ dv_guess_qnos()

◆ dv_revise_cnos()

◆ dv_encode_video_segment()

◆ dv_write_pack()

◆ dv_write_dif_id()

◆ dv_write_ssyb_id()

◆ dv_format_frame()

◆ dvvideo_encode_frame()

Variable Documentation

◆ vs_total_ac_bits_hd

◆ vs_total_ac_bits

◆ mb_area_start

◆ dv_weight_bits

◆ dv_weight_88

◆ dv_weight_248

◆ dv100_qlevels

◆ dv100_min_bias

◆ dv100_chroma_bias

◆ dv100_starting_qno

◆ dv100_qlevel_inc

◆ dv100_qstep_bits

◆ dv100_qstep_inv

◆ dv100_weight_shift

◆ dv_weight_1080

◆ dv_weight_720

◆ dv_options

◆ dvvideo_encode_class

◆ ff_dvvideo_encoder