ffv1dec.c File Reference

FF Video Codec 1 (a lossless codec) decoder. More...

#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 "libavutil/refstruct.h"
#include "thread.h"
#include "decode.h"
#include "hwconfig.h"
#include "hwaccel_internal.h"
#include "config_components.h"
#include "ffv1dec_template.c"

Go to the source code of this file.

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

Functions
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 remap_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_current_mul (RangeCoder *rc, uint8_t state[32], int *mul, int mul_count, int64_t i)
static int	decode_remap (FFV1Context *f, FFV1SliceContext *sc)
static int	decode_bayer_frame (FFV1Context *f, FFV1SliceContext *sc, GetBitContext *gb, uint8_t *src, int w, int h, int stride)
static int	decode_slice (AVCodecContext *c, void *arg)
static enum AVPixelFormat	get_pixel_format (FFV1Context *f)
static int	read_header (FFV1Context *f, RangeCoder *c)
static av_cold int	decode_init (AVCodecContext *avctx)
static int	find_next_slice (AVCodecContext *avctx, uint8_t *buf, uint8_t *buf_end, int idx, uint8_t **pos, uint32_t *len)
static int	decode_header (AVCodecContext *avctx, RangeCoder *c, uint8_t *buf, size_t buf_size)
static int	decode_slices (AVCodecContext *avctx, RangeCoder c, AVPacket *avpkt)
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 90 of file ffv1dec.c.

Referenced by cuda_device_derive(), decode_bayer_frame(), decode_line_TMPL(), decode_rgb_frame_TMPL(), encode_bayer_frame(), encode_line_TMPL(), encode_rgb_frame_TMPL(), get_context_TMPL(), horizontal_compose_daub97i_TMPL(), horizontal_compose_dd137i_TMPL(), horizontal_compose_dd97i_TMPL(), horizontal_compose_dirac53i_TMPL(), horizontal_compose_fidelityi_TMPL(), horizontal_compose_haar0i_TMPL(), horizontal_compose_haar1i_TMPL(), horizontal_compose_haari_TMPL(), interleave_TMPL(), load_rgb_frame_TMPL(), predict_TMPL(), spatial_idwt_init_TMPL(), v210_enc_TMPL(), vertical_compose53iL0_TMPL(), vertical_compose_daub97iH0_TMPL(), vertical_compose_daub97iH1_TMPL(), vertical_compose_daub97iL0_TMPL(), vertical_compose_daub97iL1_TMPL(), vertical_compose_dd137iL0_TMPL(), vertical_compose_dd97iH0_TMPL(), vertical_compose_dirac53iH0_TMPL(), vertical_compose_fidelityiH0_TMPL(), vertical_compose_fidelityiL0_TMPL(), and vertical_compose_haar_TMPL().

RENAME [1/2]

#define RENAME

(

name

)

Value:

name

Definition at line 91 of file ffv1dec.c.

Referenced by decode_bayer_frame().

TYPE [2/2]

#define TYPE   int32_t

Definition at line 90 of file ffv1dec.c.

RENAME [2/2]

#define RENAME

(

name

)

Value:

name ## 32

Definition at line 91 of file ffv1dec.c.

Function Documentation

get_vlc_symbol()

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

inlinestatic

Definition at line 48 of file ffv1dec.c.

Referenced by decode_line_TMPL().

is_input_end()

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

static

Definition at line 78 of file ffv1dec.c.

Referenced by decode_line_TMPL().

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 remap_index, int pixel_stride, int ac )

static

Definition at line 100 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 176 of file ffv1dec.c.

Referenced by decode_slice().

slice_set_damaged()

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

static

Definition at line 279 of file ffv1dec.c.

Referenced by decode_slice(), and decode_slices().

decode_current_mul()

static int decode_current_mul ( RangeCoder * rc, uint8_t state[32], int * mul, int mul_count, int64_t i )

static

Definition at line 289 of file ffv1dec.c.

Referenced by decode_remap().

decode_remap()

static int decode_remap ( FFV1Context * f, FFV1SliceContext * sc )

static

Definition at line 300 of file ffv1dec.c.

Referenced by decode_slice().

decode_bayer_frame()

static int decode_bayer_frame ( FFV1Context * f, FFV1SliceContext * sc, GetBitContext * gb, uint8_t * src, int w, int h, int stride )

static

Definition at line 379 of file ffv1dec.c.

Referenced by decode_slice().

decode_slice()

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

static

Definition at line 449 of file ffv1dec.c.

Referenced by av1_receive_frame_internal(), decode_nal_units(), decode_slice(), decode_slice(), decode_slice_data(), decode_slices(), dxtory_decode_v2(), ff_h264_execute_decode_slices(), ff_mjpeg_decode_sos(), mpeg_decode_slice(), and rv60_decode_frame().

get_pixel_format()

static enum AVPixelFormat get_pixel_format ( FFV1Context * f )

static

Definition at line 565 of file ffv1dec.c.

Referenced by read_header().

read_header()

static int read_header ( FFV1Context * f, RangeCoder * c )

static

Definition at line 578 of file ffv1dec.c.

Referenced by decode_header(), and mjpegb_decode_frame().

decode_init()

static av_cold int decode_init ( AVCodecContext * avctx )

static

Definition at line 695 of file ffv1dec.c.

find_next_slice()

static int find_next_slice ( AVCodecContext * avctx, uint8_t * buf, uint8_t * buf_end, int idx, uint8_t ** pos, uint32_t * len )

static

Definition at line 715 of file ffv1dec.c.

Referenced by decode_frame(), and decode_slices().

decode_header()

static int decode_header ( AVCodecContext * avctx, RangeCoder * c, uint8_t * buf, size_t buf_size )

static

Definition at line 747 of file ffv1dec.c.

Referenced by decode_frame().

decode_slices()

static int decode_slices ( AVCodecContext * avctx, RangeCoder c, AVPacket * avpkt )

static

Definition at line 791 of file ffv1dec.c.

Referenced by decode_frame(), and decode_frame().

decode_frame()

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

static

Definition at line 881 of file ffv1dec.c.

ffv1_decode_close()

static av_cold int ffv1_decode_close ( AVCodecContext * avctx )

static

Definition at line 1057 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_SKIP_FRAME_FILL_PARAM |
                      FF_CODEC_CAP_USES_PROGRESSFRAMES,
    .hw_configs     = (const AVCodecHWConfigInternal *const []) {
 
 
 
        NULL
    },
}

Definition at line 1072 of file ffv1dec.c.