libxavs.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <stdint.h>
#include <float.h>
#include <xavs.h>
#include "avcodec.h"
#include "internal.h"
#include "libavutil/internal.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"

Go to the source code of this file.

Data Structures
struct	XavsContext

Macros
#define	END_OF_STREAM   0x001
#define	XAVS_PART_I8X8   0x002 /* Analyze i8x8 (requires 8x8 transform) */
#define	XAVS_PART_P8X8   0x010 /* Analyze p16x8, p8x16 and p8x8 */
#define	XAVS_PART_B8X8   0x100 /* Analyze b16x8, b*/
#define	OFFSET(x)   offsetof(XavsContext, x)
#define	VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Functions
static void	XAVS_log (void *p, int level, const char *fmt, va_list args)
static int	encode_nals (AVCodecContext *ctx, AVPacket *pkt, xavs_nal_t *nals, int nnal)
static int	XAVS_frame (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
static av_cold int	XAVS_close (AVCodecContext *avctx)
static av_cold int	XAVS_init (AVCodecContext *avctx)

Variables
static const AVOption	options []
static const AVClass	xavs_class
static const AVCodecDefault	xavs_defaults []
AVCodec	ff_libxavs_encoder

Macro Definition Documentation

#define END_OF_STREAM   0x001

Definition at line 35 of file libxavs.c.

Referenced by XAVS_frame().

#define XAVS_PART_I8X8   0x002 /* Analyze i8x8 (requires 8x8 transform) */

Definition at line 37 of file libxavs.c.

#define XAVS_PART_P8X8   0x010 /* Analyze p16x8, p8x16 and p8x8 */

Definition at line 38 of file libxavs.c.

#define XAVS_PART_B8X8   0x100 /* Analyze b16x8, b*/

Definition at line 39 of file libxavs.c.

#define OFFSET

(

x

)

offsetof(XavsContext, x)

Definition at line 392 of file libxavs.c.

#define VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 393 of file libxavs.c.

Function Documentation

static void XAVS_log ( void *  p, int  level, const char *  fmt, va_list  args  )

static

Definition at line 63 of file libxavs.c.

Referenced by XAVS_init().

static int encode_nals ( AVCodecContext *  ctx, AVPacket *  pkt, xavs_nal_t *  nals, int  nnal  )

static

Definition at line 78 of file libxavs.c.

Referenced by XAVS_frame().

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

static

Definition at line 113 of file libxavs.c.

static av_cold int XAVS_close ( AVCodecContext *  avctx )

static

Definition at line 199 of file libxavs.c.

static av_cold int XAVS_init ( AVCodecContext *  avctx )

static

Definition at line 215 of file libxavs.c.

Variable Documentation

const AVOption options[]

static

Initial value:

= {
    { "crf",           "Select the quality for constant quality mode",    OFFSET(crf),           AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE },
    { "qp",            "Constant quantization parameter rate control method",OFFSET(cqp),        AV_OPT_TYPE_INT,    {.i64 = -1 }, -1, INT_MAX, VE },
    { "b-bias",        "Influences how often B-frames are used",          OFFSET(b_bias),        AV_OPT_TYPE_INT,    {.i64 = INT_MIN}, INT_MIN, INT_MAX, VE },
    { "cplxblur",      "Reduce fluctuations in QP (before curve compression)", OFFSET(cplxblur), AV_OPT_TYPE_FLOAT,  {.dbl = -1 }, -1, FLT_MAX, VE},
    { "direct-pred",   "Direct MV prediction mode",                       OFFSET(direct_pred),   AV_OPT_TYPE_INT,    {.i64 = -1 }, -1, INT_MAX, VE, "direct-pred" },
    { "none",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_NONE },     0, 0, VE, "direct-pred" },
    { "spatial",       NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_SPATIAL },  0, 0, VE, "direct-pred" },
    { "temporal",      NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_TEMPORAL }, 0, 0, VE, "direct-pred" },
    { "auto",          NULL,      0,    AV_OPT_TYPE_CONST, { .i64 = XAVS_DIRECT_PRED_AUTO },     0, 0, VE, "direct-pred" },
    { "aud",           "Use access unit delimiters.",                     OFFSET(aud),           AV_OPT_TYPE_INT,    {.i64 = -1 }, -1, 1, VE},
    { "mbtree",        "Use macroblock tree ratecontrol.",                OFFSET(mbtree),        AV_OPT_TYPE_INT,    {.i64 = -1 }, -1, 1, VE},
    { "mixed-refs",    "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 1, VE },
    { "fast-pskip",    NULL,                                              OFFSET(fast_pskip),    AV_OPT_TYPE_INT,    {.i64 = -1 }, -1, 1, VE},
    { NULL },
}

Definition at line 394 of file libxavs.c.

const AVClass xavs_class

static

Initial value:

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

Definition at line 411 of file libxavs.c.

const AVCodecDefault xavs_defaults[]

static

Initial value:

= {
    { "b",                "0" },
    { NULL },
}

Definition at line 418 of file libxavs.c.

AVCodec ff_libxavs_encoder

Initial value:

= {
    .name           = "libxavs",
    .long_name      = NULL_IF_CONFIG_SMALL("libxavs Chinese AVS (Audio Video Standard)"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_CAVS,
    .priv_data_size = sizeof(XavsContext),
    .init           = XAVS_init,
    .encode2        = XAVS_frame,
    .close          = XAVS_close,
    .capabilities   = CODEC_CAP_DELAY | CODEC_CAP_AUTO_THREADS,
    .pix_fmts       = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE },
    .priv_class     = &xavs_class,
    .defaults       = xavs_defaults,
}

Definition at line 423 of file libxavs.c.