Libav
Data Structures | Functions | Variables
dvdec.c File Reference

DV decoder. More...

#include "libavutil/internal.h"
#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "idctdsp.h"
#include "internal.h"
#include "get_bits.h"
#include "put_bits.h"
#include "simple_idct.h"
#include "dvdata.h"
#include "dv.h"

Go to the source code of this file.

Data Structures

struct  BlockInfo
 

Functions

static av_cold int dvvideo_decode_init (AVCodecContext *avctx)
 
static void dv_decode_ac (GetBitContext *gb, BlockInfo *mb, int16_t *block)
 
static void bit_copy (PutBitContext *pb, GetBitContext *gb)
 
static int dv_decode_video_segment (AVCodecContext *avctx, void *arg)
 
static int dvvideo_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 

Variables

static const int dv_iweight_bits = 14
 
AVCodec ff_dvvideo_decoder
 

Detailed Description

DV decoder.

Definition in file dvdec.c.

Function Documentation

§ dvvideo_decode_init()

static av_cold int dvvideo_decode_init ( AVCodecContext avctx)
static

Definition at line 62 of file dvdec.c.

§ dv_decode_ac()

static void dv_decode_ac ( GetBitContext gb,
BlockInfo mb,
int16_t *  block 
)
static

Definition at line 82 of file dvdec.c.

Referenced by dv_decode_video_segment().

§ bit_copy()

static void bit_copy ( PutBitContext pb,
GetBitContext gb 
)
inlinestatic

Definition at line 140 of file dvdec.c.

Referenced by dv_decode_video_segment().

§ dv_decode_video_segment()

static int dv_decode_video_segment ( AVCodecContext avctx,
void arg 
)
static

Definition at line 153 of file dvdec.c.

Referenced by dvvideo_decode_frame().

§ dvvideo_decode_frame()

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

Definition at line 335 of file dvdec.c.

Variable Documentation

§ dv_iweight_bits

const int dv_iweight_bits = 14
static

Definition at line 60 of file dvdec.c.

Referenced by dv_decode_ac().

§ ff_dvvideo_decoder

AVCodec ff_dvvideo_decoder
Initial value:
= {
.name = "dvvideo",
.long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"),
.priv_data_size = sizeof(DVVideoContext),
}
static int decode(MimicContext *ctx, int quality, int num_coeffs, int is_iframe)
Definition: mimic.c:275
static av_cold int dvvideo_decode_init(AVCodecContext *avctx)
Definition: dvdec.c:62
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:684
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:145
static int dvvideo_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: dvdec.c:335
#define CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
Definition: avcodec.h:759
static av_cold int init(AVCodecParserContext *s)
Definition: h264_parser.c:499

Definition at line 398 of file dvdec.c.