rv10.c File Reference

#include <inttypes.h>
#include "libavutil/imgutils.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "error_resilience.h"
#include "h263.h"
#include "h263data.h"
#include "internal.h"
#include "mpeg_er.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpeg4video.h"
#include "mpegvideodata.h"
#include "rv10.h"

Go to the source code of this file.

Data Structures
struct	RVDecContext

Macros
#define	RV_GET_MAJOR_VER(x)   ((x) >> 28)
#define	RV_GET_MINOR_VER(x)   (((x) >> 20) & 0xFF)
#define	RV_GET_MICRO_VER(x)   (((x) >> 12) & 0xFF)
#define	MAX_VLC_ENTRIES   1023
#define	DC_VLC_BITS   9
#define	ERROR_SKIP_FRAME   -123

Functions
int	ff_rv_decode_dc (MpegEncContext *s, int n)
static int	rv10_decode_picture_header (MpegEncContext *s)
static int	rv20_decode_picture_header (RVDecContext *rv, int whole_size)
static av_cold void	rv10_build_vlc (VLC *vlc, const uint16_t len_count[15], const uint8_t sym_rl[][2], int sym_rl_elems)
static av_cold void	rv10_init_static (void)
static av_cold int	rv10_decode_init (AVCodecContext *avctx)
static av_cold int	rv10_decode_end (AVCodecContext *avctx)
static int	rv10_decode_packet (AVCodecContext *avctx, const uint8_t *buf, int buf_size, int buf_size2, int whole_size)
static int	get_slice_offset (AVCodecContext *avctx, const uint8_t *buf, int n)
static int	rv10_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)

Variables
static const uint8_t	rv_sym_run_len [][2]
static const uint16_t	rv_lum_len_count [15]
static const uint16_t	rv_chrom_len_count [15]
static VLC	rv_dc_lum
static VLC	rv_dc_chrom
const AVCodec	ff_rv10_decoder
const AVCodec	ff_rv20_decoder

Detailed Description

RV10/RV20 decoder

Definition in file rv10.c.

Macro Definition Documentation

RV_GET_MAJOR_VER

#define RV_GET_MAJOR_VER

(

x

)

((x) >> 28)

Definition at line 45 of file rv10.c.

RV_GET_MINOR_VER

#define RV_GET_MINOR_VER

(

x

)

(((x) >> 20) & 0xFF)

Definition at line 46 of file rv10.c.

RV_GET_MICRO_VER

#define RV_GET_MICRO_VER

(

x

)

(((x) >> 12) & 0xFF)

Definition at line 47 of file rv10.c.

MAX_VLC_ENTRIES

#define MAX_VLC_ENTRIES   1023

Definition at line 49 of file rv10.c.

DC_VLC_BITS

#define DC_VLC_BITS   9

Definition at line 50 of file rv10.c.

ERROR_SKIP_FRAME

#define ERROR_SKIP_FRAME   -123

Function Documentation

ff_rv_decode_dc()

int ff_rv_decode_dc	(	MpegEncContext *	s,
		int	n
	)

Definition at line 81 of file rv10.c.

Referenced by h263_decode_block().

rv10_decode_picture_header()

static int rv10_decode_picture_header ( MpegEncContext *  s )

static

Definition at line 98 of file rv10.c.

Referenced by rv10_decode_packet().

rv20_decode_picture_header()

static int rv20_decode_picture_header ( RVDecContext *  rv, int  whole_size  )

static

Definition at line 157 of file rv10.c.

Referenced by rv10_decode_packet().

rv10_build_vlc()

static av_cold void rv10_build_vlc ( VLC *  vlc, const uint16_t  len_count[15], const uint8_t  sym_rl[][2], int  sym_rl_elems  )

static

Definition at line 319 of file rv10.c.

Referenced by rv10_init_static().

rv10_init_static()

static av_cold void rv10_init_static ( void  )

static

Definition at line 340 of file rv10.c.

Referenced by rv10_decode_init().

rv10_decode_init()

static av_cold int rv10_decode_init ( AVCodecContext *  avctx )

static

Definition at line 366 of file rv10.c.

rv10_decode_end()

static av_cold int rv10_decode_end ( AVCodecContext *  avctx )

static

Definition at line 434 of file rv10.c.

rv10_decode_packet()

static int rv10_decode_packet ( AVCodecContext *  avctx, const uint8_t *  buf, int  buf_size, int  buf_size2, int  whole_size  )

static

Definition at line 442 of file rv10.c.

Referenced by rv10_decode_frame().

get_slice_offset()

static int get_slice_offset ( AVCodecContext *  avctx, const uint8_t *  buf, int  n  )

static

Definition at line 587 of file rv10.c.

Referenced by rv10_decode_frame().

rv10_decode_frame()

static int rv10_decode_frame ( AVCodecContext *  avctx, void *  data, int *  got_frame, AVPacket *  avpkt  )

static

Definition at line 595 of file rv10.c.

Variable Documentation

rv_sym_run_len

const uint8_t rv_sym_run_len[][2]

static

Initial value:

= {
    {   0,   0 }, {   1,   0 }, { 255,   0 }, {   3,   1 }, { 254,  1 },
    {   7,   3 }, { 252,   3 }, {  15,   7 }, { 248,   7 }, {  31, 15 },
    { 240,  15 }, {  63,  31 }, { 224,  31 }, { 127,  63 }, { 192, 63 },
    { 255, 127 }, { 128, 127 }, { 127, 255 }, { 128, 255 },
}

Definition at line 62 of file rv10.c.

Referenced by rv10_init_static().

rv_lum_len_count

const uint16_t rv_lum_len_count[15]

static

Initial value:

= {
    1,  0,  2,  4,  8, 16, 32,  0, 64,  0, 128,  0, 256,  0, 512,
}

Definition at line 71 of file rv10.c.

Referenced by rv10_init_static().

rv_chrom_len_count

const uint16_t rv_chrom_len_count[15]

static

Initial value:

= {
    1,  2,  4,  0,  8,  0, 16,  0, 32,  0,  64,  0, 128,  0, 256,
}

Definition at line 75 of file rv10.c.

Referenced by rv10_init_static().

rv_dc_lum

VLC rv_dc_lum

static

Definition at line 79 of file rv10.c.

Referenced by ff_rv_decode_dc(), and rv10_init_static().

rv_dc_chrom

VLC rv_dc_chrom

static

Definition at line 79 of file rv10.c.

Referenced by ff_rv_decode_dc(), and rv10_init_static().

ff_rv10_decoder

const AVCodec ff_rv10_decoder

Initial value:

= {
    .name           = "rv10",
    .long_name      = NULL_IF_CONFIG_SMALL("RealVideo 1.0"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_RV10,
    .priv_data_size = sizeof(RVDecContext),
    .init           = rv10_decode_init,
    .close          = rv10_decode_end,
    .decode         = rv10_decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
    .max_lowres     = 3,
    .pix_fmts       = (const enum AVPixelFormat[]) {
        AV_PIX_FMT_YUV420P,
        AV_PIX_FMT_NONE
    },
}

Definition at line 684 of file rv10.c.

ff_rv20_decoder

const AVCodec ff_rv20_decoder

Initial value:

= {
    .name           = "rv20",
    .long_name      = NULL_IF_CONFIG_SMALL("RealVideo 2.0"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_RV20,
    .priv_data_size = sizeof(RVDecContext),
    .init           = rv10_decode_init,
    .close          = rv10_decode_end,
    .decode         = rv10_decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY,
    .flush          = ff_mpeg_flush,
    .max_lowres     = 3,
    .pix_fmts       = (const enum AVPixelFormat[]) {
        AV_PIX_FMT_YUV420P,
        AV_PIX_FMT_NONE
    },
}

Definition at line 701 of file rv10.c.