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Macros | Functions | Variables
vp9.c File Reference
#include "avcodec.h"
#include "get_bits.h"
#include "internal.h"
#include "profiles.h"
#include "thread.h"
#include "videodsp.h"
#include "vp56.h"
#include "vp9.h"
#include "vp9data.h"
#include "vp9dec.h"
#include "libavutil/avassert.h"
#include "libavutil/pixdesc.h"

Go to the source code of this file.

Macros

#define VP9_SYNCCODE   0x498342
 
#define HWACCEL_MAX   (CONFIG_VP9_DXVA2_HWACCEL + CONFIG_VP9_D3D11VA_HWACCEL + CONFIG_VP9_VAAPI_HWACCEL)
 
#define assign(var, type, n)   var = (type) p; p += s->sb_cols * (n) * sizeof(*var)
 

Functions

static void vp9_frame_unref (AVCodecContext *avctx, VP9Frame *f)
 
static int vp9_frame_alloc (AVCodecContext *avctx, VP9Frame *f)
 
static int vp9_frame_ref (AVCodecContext *avctx, VP9Frame *dst, VP9Frame *src)
 
static int update_size (AVCodecContext *avctx, int w, int h)
 
static int update_block_buffers (AVCodecContext *avctx)
 
static av_always_inline int get_sbits_inv (GetBitContext *gb, int n)
 
static av_always_inline int inv_recenter_nonneg (int v, int m)
 
static int update_prob (VP56RangeCoder *c, int p)
 
static int read_colorspace_details (AVCodecContext *avctx)
 
static int decode_frame_header (AVCodecContext *avctx, const uint8_t *data, int size, int *ref)
 
static void decode_sb (AVCodecContext *avctx, int row, int col, VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl)
 
static void decode_sb_mem (AVCodecContext *avctx, int row, int col, VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl)
 
static void set_tile_offset (int *start, int *end, int idx, int log2_n, int n)
 
static void free_buffers (VP9Context *s)
 
static av_cold int vp9_decode_free (AVCodecContext *avctx)
 
static int vp9_decode_frame (AVCodecContext *avctx, void *frame, int *got_frame, AVPacket *pkt)
 
static void vp9_decode_flush (AVCodecContext *avctx)
 
static int init_frames (AVCodecContext *avctx)
 
static av_cold int vp9_decode_init (AVCodecContext *avctx)
 

Variables

AVCodec ff_vp9_decoder
 

Macro Definition Documentation

#define VP9_SYNCCODE   0x498342

Definition at line 37 of file vp9.c.

Referenced by decode_frame_header().

#define HWACCEL_MAX   (CONFIG_VP9_DXVA2_HWACCEL + CONFIG_VP9_D3D11VA_HWACCEL + CONFIG_VP9_VAAPI_HWACCEL)

Referenced by update_size().

#define assign (   var,
  type,
  n 
)    var = (type) p; p += s->sb_cols * (n) * sizeof(*var)

Referenced by update_size().

Function Documentation

static void vp9_frame_unref ( AVCodecContext *  avctx,
VP9Frame *  f 
)
static

Definition at line 39 of file vp9.c.

Referenced by vp9_decode_flush(), vp9_decode_frame(), vp9_decode_free(), vp9_frame_alloc(), and vp9_frame_ref().

static int vp9_frame_alloc ( AVCodecContext *  avctx,
VP9Frame *  f 
)
static

Definition at line 48 of file vp9.c.

Referenced by vp9_decode_frame().

static int vp9_frame_ref ( AVCodecContext *  avctx,
VP9Frame *  dst,
VP9Frame *  src 
)
static

Definition at line 84 of file vp9.c.

Referenced by vp9_decode_frame().

static int update_size ( AVCodecContext *  avctx,
int  w,
int  h 
)
static

Definition at line 114 of file vp9.c.

Referenced by decode_frame_header().

static int update_block_buffers ( AVCodecContext *  avctx)
static

Definition at line 213 of file vp9.c.

Referenced by vp9_decode_frame().

static av_always_inline int get_sbits_inv ( GetBitContext *  gb,
int  n 
)
static

Definition at line 256 of file vp9.c.

Referenced by decode_frame_header().

static av_always_inline int inv_recenter_nonneg ( int  v,
int  m 
)
static

Definition at line 262 of file vp9.c.

Referenced by update_prob().

static int update_prob ( VP56RangeCoder *  c,
int  p 
)
static

Definition at line 272 of file vp9.c.

Referenced by decode_frame_header().

static int read_colorspace_details ( AVCodecContext *  avctx)
static

Definition at line 330 of file vp9.c.

Referenced by decode_frame_header().

static int decode_frame_header ( AVCodecContext *  avctx,
const uint8_t *  data,
int  size,
int *  ref 
)
static

Definition at line 392 of file vp9.c.

Referenced by vp9_decode_frame().

static void decode_sb ( AVCodecContext *  avctx,
int  row,
int  col,
VP9Filter *  lflvl,
ptrdiff_t  yoff,
ptrdiff_t  uvoff,
enum BlockLevel  bl 
)
static

Definition at line 931 of file vp9.c.

Referenced by vp9_decode_frame().

static void decode_sb_mem ( AVCodecContext *  avctx,
int  row,
int  col,
VP9Filter *  lflvl,
ptrdiff_t  yoff,
ptrdiff_t  uvoff,
enum BlockLevel  bl 
)
static

Definition at line 1010 of file vp9.c.

Referenced by vp9_decode_frame().

static void set_tile_offset ( int *  start,
int *  end,
int  idx,
int  log2_n,
int  n 
)
static

Definition at line 1059 of file vp9.c.

Referenced by vp9_decode_frame().

static void free_buffers ( VP9Context *  s)
static

Definition at line 1067 of file vp9.c.

Referenced by vp9_decode_free().

static av_cold int vp9_decode_free ( AVCodecContext *  avctx)
static

Definition at line 1074 of file vp9.c.

Referenced by init_frames().

static int vp9_decode_frame ( AVCodecContext *  avctx,
void *  frame,
int *  got_frame,
AVPacket *  pkt 
)
static

Definition at line 1100 of file vp9.c.

static void vp9_decode_flush ( AVCodecContext *  avctx)
static

Definition at line 1385 of file vp9.c.

static int init_frames ( AVCodecContext *  avctx)
static

Definition at line 1396 of file vp9.c.

Referenced by vp9_decode_init().

static av_cold int vp9_decode_init ( AVCodecContext *  avctx)
static

Definition at line 1422 of file vp9.c.

Variable Documentation

AVCodec ff_vp9_decoder
Initial value:
= {
.name = "vp9",
.long_name = NULL_IF_CONFIG_SMALL("Google VP9"),
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_VP9,
.priv_data_size = sizeof(VP9Context),
.init = vp9_decode_init,
.close = vp9_decode_free,
.decode = vp9_decode_frame,
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
.flush = vp9_decode_flush,
.init_thread_copy = ONLY_IF_THREADS_ENABLED(vp9_decode_init_thread_copy),
.update_thread_context = ONLY_IF_THREADS_ENABLED(vp9_decode_update_thread_context),
.profiles = NULL_IF_CONFIG_SMALL(ff_vp9_profiles),
}
AV_CODEC_ID_VP9
Definition: avcodec.h:388
vp9_decode_flush
static void vp9_decode_flush(AVCodecContext *avctx)
Definition: vp9.c:1385
flush
static void flush(AVCodecContext *avctx)
Definition: aacdec_template.c:500
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
vp9_decode_init
static av_cold int vp9_decode_init(AVCodecContext *avctx)
Definition: vp9.c:1422
vp9_decode_free
static av_cold int vp9_decode_free(AVCodecContext *avctx)
Definition: vp9.c:1074
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:179
AV_CODEC_CAP_FRAME_THREADS
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:1057
ONLY_IF_THREADS_ENABLED
#define ONLY_IF_THREADS_ENABLED(x)
Define a function with only the non-default version specified.
Definition: internal.h:218
vp9_decode_frame
static int vp9_decode_frame(AVCodecContext *avctx, void *frame, int *got_frame, AVPacket *pkt)
Definition: vp9.c:1100
decode
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
Definition: ffmpeg.c:2257
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
ff_vp9_profiles
const AVProfile ff_vp9_profiles[]
Definition: profiles.c:135
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:994

Definition at line 1485 of file vp9.c.

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