dvenc.c File Reference

DV encoder. More...

#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"

Go to the source code of this file.

Data Structures
struct	EncBlockInfo

Macros
#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_init_enc_block (EncBlockInfo *bi, uint8_t *data, ptrdiff_t linesize, DVVideoContext *s, int bias)
static void	dv_guess_qnos (EncBlockInfo *blks, int *qnos)
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 = (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 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

#define VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 756 of file dvenc.c.

#define OFFSET

(

x

)

offsetof(DVVideoContext, x)

Definition at line 757 of file dvenc.c.

Function Documentation

static av_cold int dvvideo_encode_init ( AVCodecContext *  avctx )

static

Definition at line 47 of file dvenc.c.

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

static

Definition at line 137 of file dvenc.c.

Referenced by dv_encode_ac().

static av_always_inline int dv_rl2vlc_size ( int  run, int  l  )

static

Definition at line 143 of file dvenc.c.

Referenced by dv_guess_qnos(), and dv_init_enc_block().

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

static

Definition at line 163 of file dvenc.c.

Referenced by dv_encode_video_segment().

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

static

Definition at line 209 of file dvenc.c.

Referenced by dv_init_enc_block().

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

static

Definition at line 246 of file dvenc.c.

Referenced by dv_encode_video_segment().

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

inlinestatic

Definition at line 353 of file dvenc.c.

Referenced by dv_encode_video_segment().

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

static

Definition at line 425 of file dvenc.c.

Referenced by dvvideo_encode_frame().

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

inlinestatic

Definition at line 565 of file dvenc.c.

Referenced by dv_format_frame().

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 642 of file dvenc.c.

Referenced by dv_format_frame().

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

inlinestatic

Definition at line 654 of file dvenc.c.

Referenced by dv_format_frame().

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

static

Definition at line 674 of file dvenc.c.

Referenced by dvvideo_encode_frame().

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

static

Definition at line 724 of file dvenc.c.

Variable Documentation

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

static

Definition at line 93 of file dvenc.c.

Referenced by dv_encode_video_segment(), and dv_guess_qnos().

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

static

Definition at line 94 of file dvenc.c.

Referenced by dv_guess_qnos(), and dv_init_enc_block().

const int dv_weight_bits = 18

static

Definition at line 224 of file dvenc.c.

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 225 of file dvenc.c.

Referenced by dv_init_enc_block().

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 235 of file dvenc.c.

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 758 of file dvenc.c.

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 763 of file dvenc.c.

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 | AV_CODEC_CAP_INTRA_ONLY,
    .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 770 of file dvenc.c.