ffv1dec.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/crc.h"
#include "libavutil/mem.h"
#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "get_bits.h"
#include "rangecoder.h"
#include "golomb.h"
#include "mathops.h"
#include "ffv1.h"
#include "progressframe.h"
#include "refstruct.h"
#include "thread.h"
#include "ffv1dec_template.c"

Go to the source code of this file.

Macros
#define	TYPE   int16_t
#define	RENAME(name)   name
#define	TYPE   int32_t
#define	RENAME(name)   name ## 32

Functions
static av_flatten int	get_symbol_inline (RangeCoder *c, uint8_t *state, int is_signed)
static av_noinline int	get_symbol (RangeCoder *c, uint8_t *state, int is_signed)
static int	get_vlc_symbol (GetBitContext *gb, VlcState *const state, int bits)
static int	is_input_end (RangeCoder *c, GetBitContext *gb, int ac)
static int	decode_plane (FFV1Context *f, FFV1SliceContext *sc, GetBitContext *gb, uint8_t *src, int w, int h, int stride, int plane_index, int pixel_stride, int ac)
static int	decode_slice_header (const FFV1Context *f, FFV1SliceContext *sc, AVFrame *frame)
static void	slice_set_damaged (FFV1Context *f, FFV1SliceContext *sc)
static int	decode_slice (AVCodecContext *c, void *arg)
static int	read_quant_table (RangeCoder *c, int16_t *quant_table, int scale)
static int	read_quant_tables (RangeCoder *c, int16_t quant_table[MAX_CONTEXT_INPUTS][256])
static int	read_extra_header (FFV1Context *f)
static int	read_header (FFV1Context *f)
static av_cold int	decode_init (AVCodecContext *avctx)
static int	decode_frame (AVCodecContext *avctx, AVFrame *rframe, int *got_frame, AVPacket *avpkt)
static av_cold int	ffv1_decode_close (AVCodecContext *avctx)

Variables
const FFCodec	ff_ffv1_decoder

Detailed Description

FF Video Codec 1 (a lossless codec) decoder

Definition in file ffv1dec.c.

Macro Definition Documentation

TYPE [1/2]

#define TYPE   int16_t

Definition at line 116 of file ffv1dec.c.

RENAME [1/2]

#define RENAME

(

name

)

name

Definition at line 117 of file ffv1dec.c.

TYPE [2/2]

#define TYPE   int32_t

Definition at line 116 of file ffv1dec.c.

RENAME [2/2]

#define RENAME

(

name

)

name ## 32

Definition at line 117 of file ffv1dec.c.

Function Documentation

get_symbol_inline()

static av_flatten int get_symbol_inline ( RangeCoder *  c, uint8_t *  state, int  is_signed  )

inlinestatic

Definition at line 44 of file ffv1dec.c.

Referenced by decode_line(), and get_symbol().

get_symbol()

static av_noinline int get_symbol ( RangeCoder *  c, uint8_t *  state, int  is_signed  )

static

Definition at line 68 of file ffv1dec.c.

Referenced by decode_slice_header(), read_extra_header(), read_header(), and read_quant_table().

get_vlc_symbol()

static int get_vlc_symbol ( GetBitContext *  gb, VlcState *const  state, int  bits  )

inlinestatic

Definition at line 73 of file ffv1dec.c.

Referenced by decode_line().

is_input_end()

static int is_input_end ( RangeCoder *  c, GetBitContext *  gb, int  ac  )

static

Definition at line 98 of file ffv1dec.c.

Referenced by decode_line().

decode_plane()

static int decode_plane ( FFV1Context *  f, FFV1SliceContext *  sc, GetBitContext *  gb, uint8_t *  src, int  w, int  h, int  stride, int  plane_index, int  pixel_stride, int  ac  )

static

Definition at line 120 of file ffv1dec.c.

Referenced by decode_slice().

decode_slice_header()

static int decode_slice_header ( const FFV1Context *  f, FFV1SliceContext *  sc, AVFrame *  frame  )

static

Definition at line 167 of file ffv1dec.c.

Referenced by decode_slice().

slice_set_damaged()

static void slice_set_damaged ( FFV1Context *  f, FFV1SliceContext *  sc  )

static

Definition at line 256 of file ffv1dec.c.

Referenced by decode_frame(), and decode_slice().

decode_slice()

static int decode_slice ( AVCodecContext *  c, void *  arg  )

static

Definition at line 266 of file ffv1dec.c.

Referenced by av1_receive_frame_internal(), decode_frame(), decode_nal_units(), dxtory_decode_v2(), ff_mjpeg_decode_sos(), and mpeg_decode_slice().

read_quant_table()

static int read_quant_table ( RangeCoder *  c, int16_t *  quant_table, int  scale  )

static

Definition at line 366 of file ffv1dec.c.

Referenced by read_quant_tables().

read_quant_tables()

static int read_quant_tables ( RangeCoder *  c, int16_t  quant_table[MAX_CONTEXT_INPUTS][256]  )

static

Definition at line 393 of file ffv1dec.c.

Referenced by read_extra_header(), and read_header().

read_extra_header()

static int read_extra_header ( FFV1Context *  f )

static

Definition at line 411 of file ffv1dec.c.

Referenced by decode_init().

read_header()

static int read_header ( FFV1Context *  f )

static

Definition at line 540 of file ffv1dec.c.

Referenced by decode_frame(), and mjpegb_decode_frame().

decode_init()

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 841 of file ffv1dec.c.

decode_frame()

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

static

Definition at line 858 of file ffv1dec.c.

ffv1_decode_close()

static av_cold int ffv1_decode_close ( AVCodecContext *  avctx )

static

Definition at line 1082 of file ffv1dec.c.

Variable Documentation

ff_ffv1_decoder

const FFCodec ff_ffv1_decoder

Initial value:

= {
    .p.name         = "ffv1",
    CODEC_LONG_NAME("FFmpeg video codec #1"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_FFV1,
    .priv_data_size = sizeof(FFV1Context),
    .init           = decode_init,
    .close          = ffv1_decode_close,
    FF_CODEC_DECODE_CB(decode_frame),
    UPDATE_THREAD_CONTEXT(update_thread_context),
    .p.capabilities = AV_CODEC_CAP_DR1 |
                      AV_CODEC_CAP_FRAME_THREADS | AV_CODEC_CAP_SLICE_THREADS,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP |
                      FF_CODEC_CAP_USES_PROGRESSFRAMES,
}

Definition at line 1092 of file ffv1dec.c.