nuv.c File Reference

#include <stddef.h>
#include <limits.h>
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/lzo.h"
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"
#include "jpegquanttables.h"
#include "rtjpeg.h"

Go to the source code of this file.

Data Structures
struct	NuvContext

Functions
static void	copy_frame (AVFrame *f, const uint8_t *src, int width, int height)
	copy frame data from buffer to AVFrame, handling stride. More...
static int	get_quant (AVCodecContext *avctx, NuvContext *c, const uint8_t *buf, int size)
	extract quantization tables from codec data into our context More...
static void	get_quant_quality (NuvContext *c, int quality)
	set quantization tables from a quality value More...
static int	codec_reinit (AVCodecContext *avctx, int width, int height, int quality)
static int	decode_frame (AVCodecContext *avctx, AVFrame *picture, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)

Variables
const FFCodec	ff_nuv_decoder

Function Documentation

copy_frame()

static void copy_frame ( AVFrame *  f, const uint8_t *  src, int  width, int  height  )

static

copy frame data from buffer to AVFrame, handling stride.

Parameters

f	destination AVFrame
src	source buffer, does not use any line-stride
width	width of the video frame
height	height of the video frame

Definition at line 53 of file nuv.c.

Referenced by decode_frame().

get_quant()

static int get_quant ( AVCodecContext *  avctx, NuvContext *  c, const uint8_t *  buf, int  size  )

static

extract quantization tables from codec data into our context

Definition at line 66 of file nuv.c.

Referenced by decode_frame(), and decode_init().

get_quant_quality()

static void get_quant_quality ( NuvContext *  c, int  quality  )

static

set quantization tables from a quality value

Definition at line 84 of file nuv.c.

Referenced by codec_reinit().

codec_reinit()

static int codec_reinit ( AVCodecContext *  avctx, int  width, int  height, int  quality  )

static

Definition at line 94 of file nuv.c.

Referenced by decode_frame(), and decode_init().

decode_frame()

static int decode_frame ( AVCodecContext *  avctx, AVFrame *  picture, int *  got_frame, AVPacket *  avpkt  )

static

Definition at line 131 of file nuv.c.

decode_init()

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 306 of file nuv.c.

decode_end()

static av_cold int decode_end ( AVCodecContext *  avctx )

static

Definition at line 334 of file nuv.c.

Variable Documentation

ff_nuv_decoder

const FFCodec ff_nuv_decoder

Initial value:

= {
    .p.name         = "nuv",
    CODEC_LONG_NAME("NuppelVideo/RTJPEG"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_NUV,
    .priv_data_size = sizeof(NuvContext),
    .init           = decode_init,
    .close          = decode_end,
    FF_CODEC_DECODE_CB(decode_frame),
    .p.capabilities = AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
}

Definition at line 344 of file nuv.c.