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magicyuv.c File Reference
#include <stdlib.h>
#include <string.h>
#include "libavutil/pixdesc.h"
#include "libavutil/qsort.h"
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
#include "huffyuvdsp.h"
#include "internal.h"
#include "lossless_videodsp.h"
#include "thread.h"

Go to the source code of this file.

Data Structures

struct  Slice
 
struct  HuffEntry
 
struct  MagicYUVContext
 

Enumerations

enum  Prediction {
  LEFT = 1, GRADIENT, MEDIAN, LEFT = 1,
  GRADIENT, MEDIAN
}
 

Functions

static int huff_cmp_len (const void *a, const void *b)
 
static int huff_cmp_len10 (const void *a, const void *b)
 
static int huff_cmp_len12 (const void *a, const void *b)
 
static int huff_build10 (VLC *vlc, uint8_t *len)
 
static int huff_build12 (VLC *vlc, uint8_t *len)
 
static int huff_build (VLC *vlc, uint8_t *len)
 
static void magicyuv_median_pred16 (uint16_t *dst, const uint16_t *src1, const uint16_t *diff, intptr_t w, int *left, int *left_top, int max)
 
static int magy_decode_slice10 (AVCodecContext *avctx, void *tdata, int j, int threadnr)
 
static int magy_decode_slice (AVCodecContext *avctx, void *tdata, int j, int threadnr)
 
static int build_huffman (AVCodecContext *avctx, GetBitContext *gbit, int max)
 
static int magy_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 
static av_cold int magy_decode_init (AVCodecContext *avctx)
 
static av_cold int magy_decode_end (AVCodecContext *avctx)
 

Variables

AVCodec ff_magicyuv_decoder
 

Enumeration Type Documentation

enum Prediction
Enumerator
LEFT 
GRADIENT 
MEDIAN 
LEFT 
GRADIENT 
MEDIAN 

Definition at line 41 of file magicyuv.c.

Function Documentation

static int huff_cmp_len ( const void *  a,
const void *  b 
)
static

Definition at line 77 of file magicyuv.c.

Referenced by huff_build().

static int huff_cmp_len10 ( const void *  a,
const void *  b 
)
static

Definition at line 83 of file magicyuv.c.

Referenced by huff_build10().

static int huff_cmp_len12 ( const void *  a,
const void *  b 
)
static

Definition at line 89 of file magicyuv.c.

Referenced by huff_build12().

static int huff_build10 ( VLC *  vlc,
uint8_t *  len 
)
static

Definition at line 95 of file magicyuv.c.

Referenced by magy_decode_frame().

static int huff_build12 ( VLC *  vlc,
uint8_t *  len 
)
static

Definition at line 127 of file magicyuv.c.

Referenced by magy_decode_frame().

static int huff_build ( VLC *  vlc,
uint8_t *  len 
)
static

Definition at line 159 of file magicyuv.c.

Referenced by magy_decode_frame().

static void magicyuv_median_pred16 ( uint16_t *  dst,
const uint16_t *  src1,
const uint16_t *  diff,
intptr_t  w,
int *  left,
int *  left_top,
int  max 
)
static

Definition at line 191 of file magicyuv.c.

Referenced by magy_decode_slice10().

static int magy_decode_slice10 ( AVCodecContext *  avctx,
void *  tdata,
int  j,
int  threadnr 
)
static

Definition at line 212 of file magicyuv.c.

Referenced by magy_decode_frame().

static int magy_decode_slice ( AVCodecContext *  avctx,
void *  tdata,
int  j,
int  threadnr 
)
static

Definition at line 342 of file magicyuv.c.

Referenced by magy_decode_frame().

static int build_huffman ( AVCodecContext *  avctx,
GetBitContext *  gbit,
int  max 
)
static

Definition at line 472 of file magicyuv.c.

Referenced by magy_decode_frame().

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

Definition at line 512 of file magicyuv.c.

static av_cold int magy_decode_init ( AVCodecContext *  avctx)
static

Definition at line 763 of file magicyuv.c.

static av_cold int magy_decode_end ( AVCodecContext *  avctx)
static

Definition at line 770 of file magicyuv.c.

Variable Documentation

AVCodec ff_magicyuv_decoder
Initial value:
= {
.name = "magicyuv",
.long_name = NULL_IF_CONFIG_SMALL("MagicYUV video"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_MAGICYUV,
.priv_data_size = sizeof(MagicYUVContext),
.init = magy_decode_init,
.init_thread_copy = ONLY_IF_THREADS_ENABLED(magy_init_thread_copy),
.close = magy_decode_end,
.decode = magy_decode_frame,
.capabilities = AV_CODEC_CAP_DR1 |
AV_CODEC_CAP_FRAME_THREADS |
AV_CODEC_CAP_SLICE_THREADS,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
}
init_thread_copy
static int init_thread_copy(AVCodecContext *avctx)
Definition: tta.c:392
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
AV_CODEC_ID_MAGICYUV
Definition: avcodec.h:432
FF_CODEC_CAP_INIT_THREADSAFE
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: internal.h:40
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
AV_CODEC_CAP_FRAME_THREADS
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:1015
ONLY_IF_THREADS_ENABLED
#define ONLY_IF_THREADS_ENABLED(x)
Define a function with only the non-default version specified.
Definition: internal.h:225
AV_CODEC_CAP_SLICE_THREADS
#define AV_CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
Definition: avcodec.h:1019
magy_decode_init
static av_cold int magy_decode_init(AVCodecContext *avctx)
Definition: magicyuv.c:763
magy_decode_frame
static int magy_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: magicyuv.c:512
magy_decode_end
static av_cold int magy_decode_end(AVCodecContext *avctx)
Definition: magicyuv.c:770
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:959

Definition at line 784 of file magicyuv.c.

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