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 "vp9dsp.h"
#include "libavutil/avassert.h"
#include "libavutil/pixdesc.h"
#include "vp9_mc_template.c"

Go to the source code of this file.

Data Structures
struct	VP9Filter
struct	VP9Block
struct	VP9Context

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)
#define	INVALID_MV   0x80008000U
#define	RETURN_DIRECT_MV(mv)
#define	RETURN_MV(mv)
#define	RETURN_SCALE_MV(mv, scale)
#define	SPLAT_CTX(var, val, n)
#define	SET_CTXS(dir, off, n)
#define	STORE_COEF(c, i, v)
#define	MERGE(la, end, step, rd)
#define	MERGE_CTX(step, rd)
#define	DECODE_Y_COEF_LOOP(step, mode_index, v)
#define	SPLAT(la, end, step, cond)
#define	SPLAT_CTX(step)
#define	DECODE_UV_COEF_LOOP(step, v)
#define	memset_bpp(c, i1, v, i2, num)
#define	memset_val(c, val, num)
#define	assign_bpp(c, i1, v, i2)
#define	assign_val(c, i, v)
#define	mc_luma_dir(s, mc, dst, dst_ls, src, src_ls, tref, row, col, mv, px, py, pw, ph, bw, bh, w, h, i)
#define	mc_chroma_dir(s, mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, row, col, mv, px, py, pw, ph, bw, bh, w, h, i)
#define	SCALED   0
#define	FN(x)   x##_8bpp
#define	BYTES_PER_PIXEL   1
#define	FN(x)   x##_16bpp
#define	BYTES_PER_PIXEL   2
#define	scale_mv(n, dim)   (((int64_t)(n) * scale[dim]) >> 14)
#define	mc_luma_dir(s, mc, dst, dst_ls, src, src_ls, tref, row, col, mv, px, py, pw, ph, bw, bh, w, h, i)
#define	mc_chroma_dir(s, mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, row, col, mv, px, py, pw, ph, bw, bh, w, h, i)
#define	SCALED   1
#define	FN(x)   x##_scaled_8bpp
#define	BYTES_PER_PIXEL   1
#define	FN(x)   x##_scaled_16bpp
#define	BYTES_PER_PIXEL   2
#define	SPLAT_ZERO_CTX(v, n)
#define	SPLAT_ZERO_YUV(dir, var, off, n, dir2)

Functions
static void	vp9_unref_frame (AVCodecContext *ctx, VP9Frame *f)
static int	vp9_alloc_frame (AVCodecContext *ctx, VP9Frame *f)
static int	vp9_ref_frame (AVCodecContext *ctx, VP9Frame *dst, VP9Frame *src)
static int	update_size (AVCodecContext *ctx, int w, int h)
static int	update_block_buffers (AVCodecContext *ctx)
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 *ctx)
static int	decode_frame_header (AVCodecContext *ctx, const uint8_t *data, int size, int *ref)
static av_always_inline void	clamp_mv (VP56mv *dst, const VP56mv *src, VP9Context *s)
static void	find_ref_mvs (VP9Context *s, VP56mv *pmv, int ref, int z, int idx, int sb)
static av_always_inline int	read_mv_component (VP9Context *s, int idx, int hp)
static void	fill_mv (VP9Context *s, VP56mv *mv, int mode, int sb)
static av_always_inline void	setctx_2d (uint8_t *ptr, int w, int h, ptrdiff_t stride, int v)
static void	decode_mode (AVCodecContext *ctx)
static av_always_inline int	decode_coeffs_b_generic (VP56RangeCoder *c, int16_t *coef, int n_coeffs, int is_tx32x32, int is8bitsperpixel, int bpp, unsigned(*cnt)[6][3], unsigned(*eob)[6][2], uint8_t(*p)[6][11], int nnz, const int16_t *scan, const int16_t(*nb)[2], const int16_t *band_counts, const int16_t *qmul)
static int	decode_coeffs_b_8bpp (VP9Context *s, int16_t *coef, int n_coeffs, unsigned(*cnt)[6][3], unsigned(*eob)[6][2], uint8_t(*p)[6][11], int nnz, const int16_t *scan, const int16_t(*nb)[2], const int16_t *band_counts, const int16_t *qmul)
static int	decode_coeffs_b32_8bpp (VP9Context *s, int16_t *coef, int n_coeffs, unsigned(*cnt)[6][3], unsigned(*eob)[6][2], uint8_t(*p)[6][11], int nnz, const int16_t *scan, const int16_t(*nb)[2], const int16_t *band_counts, const int16_t *qmul)
static int	decode_coeffs_b_16bpp (VP9Context *s, int16_t *coef, int n_coeffs, unsigned(*cnt)[6][3], unsigned(*eob)[6][2], uint8_t(*p)[6][11], int nnz, const int16_t *scan, const int16_t(*nb)[2], const int16_t *band_counts, const int16_t *qmul)
static int	decode_coeffs_b32_16bpp (VP9Context *s, int16_t *coef, int n_coeffs, unsigned(*cnt)[6][3], unsigned(*eob)[6][2], uint8_t(*p)[6][11], int nnz, const int16_t *scan, const int16_t(*nb)[2], const int16_t *band_counts, const int16_t *qmul)
static av_always_inline int	decode_coeffs (AVCodecContext *ctx, int is8bitsperpixel)
static int	decode_coeffs_8bpp (AVCodecContext *ctx)
static int	decode_coeffs_16bpp (AVCodecContext *ctx)
static av_always_inline int	check_intra_mode (VP9Context *s, int mode, uint8_t **a, uint8_t *dst_edge, ptrdiff_t stride_edge, uint8_t *dst_inner, ptrdiff_t stride_inner, uint8_t *l, int col, int x, int w, int row, int y, enum TxfmMode tx, int p, int ss_h, int ss_v, int bytesperpixel)
static av_always_inline void	intra_recon (AVCodecContext *ctx, ptrdiff_t y_off, ptrdiff_t uv_off, int bytesperpixel)
static void	intra_recon_8bpp (AVCodecContext *ctx, ptrdiff_t y_off, ptrdiff_t uv_off)
static void	intra_recon_16bpp (AVCodecContext *ctx, ptrdiff_t y_off, ptrdiff_t uv_off)
static av_always_inline void	mc_luma_unscaled (VP9Context *s, vp9_mc_func(*mc)[2], uint8_t *dst, ptrdiff_t dst_stride, const uint8_t *ref, ptrdiff_t ref_stride, ThreadFrame *ref_frame, ptrdiff_t y, ptrdiff_t x, const VP56mv *mv, int bw, int bh, int w, int h, int bytesperpixel)
static av_always_inline void	mc_chroma_unscaled (VP9Context *s, vp9_mc_func(*mc)[2], uint8_t *dst_u, uint8_t *dst_v, ptrdiff_t dst_stride, const uint8_t *ref_u, ptrdiff_t src_stride_u, const uint8_t *ref_v, ptrdiff_t src_stride_v, ThreadFrame *ref_frame, ptrdiff_t y, ptrdiff_t x, const VP56mv *mv, int bw, int bh, int w, int h, int bytesperpixel)
static av_always_inline void	mc_luma_scaled (VP9Context *s, vp9_scaled_mc_func smc, vp9_mc_func(*mc)[2], uint8_t *dst, ptrdiff_t dst_stride, const uint8_t *ref, ptrdiff_t ref_stride, ThreadFrame *ref_frame, ptrdiff_t y, ptrdiff_t x, const VP56mv *in_mv, int px, int py, int pw, int ph, int bw, int bh, int w, int h, int bytesperpixel, const uint16_t *scale, const uint8_t *step)
static av_always_inline void	mc_chroma_scaled (VP9Context *s, vp9_scaled_mc_func smc, vp9_mc_func(*mc)[2], uint8_t *dst_u, uint8_t *dst_v, ptrdiff_t dst_stride, const uint8_t *ref_u, ptrdiff_t src_stride_u, const uint8_t *ref_v, ptrdiff_t src_stride_v, ThreadFrame *ref_frame, ptrdiff_t y, ptrdiff_t x, const VP56mv *in_mv, int px, int py, int pw, int ph, int bw, int bh, int w, int h, int bytesperpixel, const uint16_t *scale, const uint8_t *step)
static av_always_inline void	inter_recon (AVCodecContext *ctx, int bytesperpixel)
static void	inter_recon_8bpp (AVCodecContext *ctx)
static void	inter_recon_16bpp (AVCodecContext *ctx)
static av_always_inline void	mask_edges (uint8_t(*mask)[8][4], int ss_h, int ss_v, int row_and_7, int col_and_7, int w, int h, int col_end, int row_end, enum TxfmMode tx, int skip_inter)
static void	decode_b (AVCodecContext *ctx, int row, int col, struct VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl, enum BlockPartition bp)
static void	decode_sb (AVCodecContext *ctx, int row, int col, struct VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl)
static void	decode_sb_mem (AVCodecContext *ctx, int row, int col, struct VP9Filter *lflvl, ptrdiff_t yoff, ptrdiff_t uvoff, enum BlockLevel bl)
static av_always_inline void	filter_plane_cols (VP9Context *s, int col, int ss_h, int ss_v, uint8_t *lvl, uint8_t(*mask)[4], uint8_t *dst, ptrdiff_t ls)
static av_always_inline void	filter_plane_rows (VP9Context *s, int row, int ss_h, int ss_v, uint8_t *lvl, uint8_t(*mask)[4], uint8_t *dst, ptrdiff_t ls)
static void	loopfilter_sb (AVCodecContext *ctx, struct VP9Filter *lflvl, int row, int col, ptrdiff_t yoff, ptrdiff_t uvoff)
static void	set_tile_offset (int *start, int *end, int idx, int log2_n, int n)
static av_always_inline void	adapt_prob (uint8_t *p, unsigned ct0, unsigned ct1, int max_count, int update_factor)
static void	adapt_probs (VP9Context *s)
static void	free_buffers (VP9Context *s)
static av_cold int	vp9_decode_free (AVCodecContext *ctx)
static int	vp9_decode_frame (AVCodecContext *ctx, void *frame, int *got_frame, AVPacket *pkt)
static void	vp9_decode_flush (AVCodecContext *ctx)
static int	init_frames (AVCodecContext *ctx)
static av_cold int	vp9_decode_init (AVCodecContext *ctx)

Variables
static const uint8_t	bwh_tab [2][N_BS_SIZES][2]
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().

#define INVALID_MV   0x80008000U

Referenced by find_ref_mvs().

#define RETURN_DIRECT_MV

(

mv

)

Value:

do { \
        uint32_t m = AV_RN32A(&mv); \
        if (!idx) { \
            AV_WN32A(pmv, m); \
            return; \
        } else if (mem == INVALID_MV) { \
            mem = m; \
        } else if (m != mem) { \
            AV_WN32A(pmv, m); \
            return; \
        } \
    } while (0)

Referenced by find_ref_mvs().

#define RETURN_MV

(

mv

)

Referenced by find_ref_mvs().

#define RETURN_SCALE_MV	(		mv,
			scale
	)

Value:

do { \
        if (scale) { \
            VP56mv mv_temp = { -mv.x, -mv.y }; \
            RETURN_MV(mv_temp); \
        } else { \
            RETURN_MV(mv); \
        } \
    } while (0)

Referenced by find_ref_mvs().

#define SPLAT_CTX	(		var,
			val,
			n
	)

Value:

switch (n) { \
    case 1:  var = val;                         break; \
    case 2:  AV_WN16A(&var, val *     0x0101);  break; \
    case 4:  AV_WN32A(&var, val * 0x01010101);  break; \
    case 8: { \
        uint32_t v32 = val * 0x01010101; \
        AV_WN32A(              &var,     v32); \
        AV_WN32A(&((uint8_t *) &var)[4], v32); \
        break; \
    } \
    case 16: { \
        uint32_t v32 = val * 0x01010101; \
        AV_WN32A(              &var,      v32); \
        AV_WN32A(&((uint8_t *) &var)[4],  v32); \
        AV_WN32A(&((uint8_t *) &var)[8],  v32); \
        AV_WN32A(&((uint8_t *) &var)[12], v32); \
        break; \
    } \
    }

Referenced by decode_coeffs().

#define SET_CTXS	(		dir,
			off,
			n
	)

Value:

do { \
        SPLAT_CTX(s->dir##_skip_ctx[off],      b->skip,          n); \
        SPLAT_CTX(s->dir##_txfm_ctx[off],      b->tx,            n); \
        SPLAT_CTX(s->dir##_partition_ctx[off], dir##_ctx[b->bs], n); \
        if (!s->s.h.keyframe && !s->s.h.intraonly) { \
            SPLAT_CTX(s->dir##_intra_ctx[off], b->intra,   n); \
            SPLAT_CTX(s->dir##_comp_ctx[off],  b->comp,    n); \
            SPLAT_CTX(s->dir##_mode_ctx[off],  b->mode[3], n); \
            if (!b->intra) { \
                SPLAT_CTX(s->dir##_ref_ctx[off], vref, n); \
                if (s->s.h.filtermode == FILTER_SWITCHABLE) { \
                    SPLAT_CTX(s->dir##_filter_ctx[off], filter_id, n); \
                } \
            } \
        } \
    } while (0)

Referenced by decode_mode().

#define STORE_COEF	(		c,
			i,
			v
	)

Value:

do { \
    if (is8bitsperpixel) { \
        c[i] = v; \
    } else { \
        AV_WN32A(&c[i * 2], v); \
    } \
} while (0)

Referenced by decode_coeffs_b_generic().

#define MERGE	(		la,
			end,
			step,
			rd
	)

Value:

for (n = 0; n < end; n += step) \
        la[n] = !!rd(&la[n])

#define MERGE_CTX	(		step,
			rd
	)

Value:

do { \
        MERGE(l, end_y, step, rd); \
        MERGE(a, end_x, step, rd); \
    } while (0)

Referenced by decode_coeffs().

#define DECODE_Y_COEF_LOOP	(		step,
			mode_index,
			v
	)

Value:

for (n = 0, y = 0; y < end_y; y += step) { \
        for (x = 0; x < end_x; x += step, n += step * step) { \
            enum TxfmType txtp = vp9_intra_txfm_type[b->mode[mode_index]]; \
            res = (is8bitsperpixel ? decode_coeffs_b##v##_8bpp : decode_coeffs_b##v##_16bpp) \
                                    (s, s->block + 16 * n * bytesperpixel, 16 * step * step, \
                                     c, e, p, a[x] + l[y], yscans[txtp], \
                                     ynbs[txtp], y_band_counts, qmul[0]); \
            a[x] = l[y] = !!res; \
            total_coeff |= !!res; \
            if (step >= 4) { \
                AV_WN16A(&s->eob[n], res); \
            } else { \
                s->eob[n] = res; \
            } \
        } \
    }

Referenced by decode_coeffs().

#define SPLAT	(		la,
			end,
			step,
			cond
	)

Value:

if (step == 2) { \
        for (n = 1; n < end; n += step) \
            la[n] = la[n - 1]; \
    } else if (step == 4) { \
        if (cond) { \
            for (n = 0; n < end; n += step) \
                AV_WN32A(&la[n], la[n] * 0x01010101); \
        } else { \
            for (n = 0; n < end; n += step) \
                memset(&la[n + 1], la[n], FFMIN(end - n - 1, 3)); \
        } \
    } else /* step == 8 */ { \
        if (cond) { \
            if (HAVE_FAST_64BIT) { \
                for (n = 0; n < end; n += step) \
                    AV_WN64A(&la[n], la[n] * 0x0101010101010101ULL); \
            } else { \
                for (n = 0; n < end; n += step) { \
                    uint32_t v32 = la[n] * 0x01010101; \
                    AV_WN32A(&la[n],     v32); \
                    AV_WN32A(&la[n + 4], v32); \
                } \
            } \
        } else { \
            for (n = 0; n < end; n += step) \
                memset(&la[n + 1], la[n], FFMIN(end - n - 1, 7)); \
        } \
    }

#define SPLAT_CTX

(

step

)

Value:

do { \
        SPLAT(a, end_x, step, end_x == w4); \
        SPLAT(l, end_y, step, end_y == h4); \
    } while (0)

#define DECODE_UV_COEF_LOOP	(		step,
			v
	)

Value:

for (n = 0, y = 0; y < end_y; y += step) { \
        for (x = 0; x < end_x; x += step, n += step * step) { \
            res = (is8bitsperpixel ? decode_coeffs_b##v##_8bpp : decode_coeffs_b##v##_16bpp) \
                                    (s, s->uvblock[pl] + 16 * n * bytesperpixel, \
                                     16 * step * step, c, e, p, a[x] + l[y], \
                                     uvscan, uvnb, uv_band_counts, qmul[1]); \
            a[x] = l[y] = !!res; \
            total_coeff |= !!res; \
            if (step >= 4) { \
                AV_WN16A(&s->uveob[pl][n], res); \
            } else { \
                s->uveob[pl][n] = res; \
            } \
        } \
    }

Referenced by decode_coeffs().

#define memset_bpp	(		c,
			i1,
			v,
			i2,
			num
	)

Value:

do { \
    if (bytesperpixel == 1) { \
        memset(&(c)[(i1)], (v)[(i2)], (num)); \
    } else { \
        int n, val = AV_RN16A(&(v)[(i2) * 2]); \
        for (n = 0; n < (num); n++) { \
            AV_WN16A(&(c)[((i1) + n) * 2], val); \
        } \
    } \
} while (0)

Referenced by check_intra_mode().

#define memset_val	(		c,
			val,
			num
	)

Value:

do { \
    if (bytesperpixel == 1) { \
        memset((c), (val), (num)); \
    } else { \
        int n; \
        for (n = 0; n < (num); n++) { \
            AV_WN16A(&(c)[n * 2], (val)); \
        } \
    } \
} while (0)

Referenced by check_intra_mode().

#define assign_bpp	(		c,
			i1,
			v,
			i2
	)

Value:

do { \
    if (bytesperpixel == 1) { \
        (c)[(i1)] = (v)[(i2)]; \
    } else { \
        AV_COPY16(&(c)[(i1) * 2], &(v)[(i2) * 2]); \
    } \
} while (0)

Referenced by check_intra_mode().

#define assign_val	(		c,
			i,
			v
	)

Value:

do { \
    if (bytesperpixel == 1) { \
        (c)[(i)] = (v); \
    } else { \
        AV_WN16A(&(c)[(i) * 2], (v)); \
    } \
} while (0)

Referenced by check_intra_mode().

#define mc_luma_dir	(		s,
			mc,
			dst,
			dst_ls,
			src,
			src_ls,
			tref,
			row,
			col,
			mv,
			px,
			py,
			pw,
			ph,
			bw,
			bh,
			w,
			h,
			i
	)

Value:

mc_luma_unscaled(s, s->dsp.mc, dst, dst_ls, src, src_ls, tref, row, col, \
                     mv, bw, bh, w, h, bytesperpixel)

Definition at line 2961 of file vp9.c.

Referenced by inter_pred().

#define mc_chroma_dir	(		s,
			mc,
			dstu,
			dstv,
			dst_ls,
			srcu,
			srcu_ls,
			srcv,
			srcv_ls,
			tref,
			row,
			col,
			mv,
			px,
			py,
			pw,
			ph,
			bw,
			bh,
			w,
			h,
			i
	)

Value:

mc_chroma_unscaled(s, s->dsp.mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
                       row, col, mv, bw, bh, w, h, bytesperpixel)

Definition at line 2966 of file vp9.c.

Referenced by inter_pred().

#define SCALED   0

Definition at line 2971 of file vp9.c.

#define FN

(

x

)

x##_8bpp

Definition at line 2977 of file vp9.c.

#define BYTES_PER_PIXEL   1

Definition at line 2978 of file vp9.c.

Referenced by inter_pred().

#define FN

(

x

)

x##_16bpp

Definition at line 2977 of file vp9.c.

#define BYTES_PER_PIXEL   2

Definition at line 2978 of file vp9.c.

#define scale_mv	(		n,
			dim
	)		(((int64_t)(n) * scale[dim]) >> 14)

Referenced by ff_vc1_pred_b_mv(), ff_vc1_pred_b_mv_intfi(), mc_chroma_scaled(), mc_luma_scaled(), and vc1_decode_b_mb_intfr().

#define mc_luma_dir	(		s,
			mc,
			dst,
			dst_ls,
			src,
			src_ls,
			tref,
			row,
			col,
			mv,
			px,
			py,
			pw,
			ph,
			bw,
			bh,
			w,
			h,
			i
	)

Value:

mc_luma_scaled(s, s->dsp.s##mc, s->dsp.mc, dst, dst_ls, src, src_ls, tref, row, col, \
                   mv, px, py, pw, ph, bw, bh, w, h, bytesperpixel, \
                   s->mvscale[b->ref[i]], s->mvstep[b->ref[i]])

Definition at line 2961 of file vp9.c.

#define mc_chroma_dir	(		s,
			mc,
			dstu,
			dstv,
			dst_ls,
			srcu,
			srcu_ls,
			srcv,
			srcv_ls,
			tref,
			row,
			col,
			mv,
			px,
			py,
			pw,
			ph,
			bw,
			bh,
			w,
			h,
			i
	)

Value:

mc_chroma_scaled(s, s->dsp.s##mc, s->dsp.mc, dstu, dstv, dst_ls, srcu, srcu_ls, srcv, srcv_ls, tref, \
                     row, col, mv, px, py, pw, ph, bw, bh, w, h, bytesperpixel, \
                     s->mvscale[b->ref[i]], s->mvstep[b->ref[i]])

Definition at line 2966 of file vp9.c.

#define SCALED   1

Definition at line 2971 of file vp9.c.

#define FN

(

x

)

x##_scaled_8bpp

Definition at line 2977 of file vp9.c.

#define BYTES_PER_PIXEL   1

Definition at line 2978 of file vp9.c.

#define FN

(

x

)

x##_scaled_16bpp

Definition at line 2977 of file vp9.c.

#define BYTES_PER_PIXEL   2

Definition at line 2978 of file vp9.c.

#define SPLAT_ZERO_CTX	(		v,
			n
	)

Value:

switch (n) { \
    case 1:  v = 0;          break; \
    case 2:  AV_ZERO16(&v);  break; \
    case 4:  AV_ZERO32(&v);  break; \
    case 8:  AV_ZERO64(&v);  break; \
    case 16: AV_ZERO128(&v); break; \
    }

#define SPLAT_ZERO_YUV	(		dir,
			var,
			off,
			n,
			dir2
	)

Value:

do { \
        SPLAT_ZERO_CTX(s->dir##_y_##var[off * 2], n * 2); \
        if (s->ss_##dir2) { \
            SPLAT_ZERO_CTX(s->dir##_uv_##var[0][off], n); \
            SPLAT_ZERO_CTX(s->dir##_uv_##var[1][off], n); \
        } else { \
            SPLAT_ZERO_CTX(s->dir##_uv_##var[0][off * 2], n * 2); \
            SPLAT_ZERO_CTX(s->dir##_uv_##var[1][off * 2], n * 2); \
        } \
    } while (0)

Referenced by decode_b().

Function Documentation

static void vp9_unref_frame ( AVCodecContext *  ctx, VP9Frame *  f  )

static

Definition at line 177 of file vp9.c.

Referenced by vp9_alloc_frame(), vp9_decode_flush(), vp9_decode_frame(), vp9_decode_free(), and vp9_ref_frame().

static int vp9_alloc_frame ( AVCodecContext *  ctx, VP9Frame *  f  )

static

Definition at line 186 of file vp9.c.

Referenced by vp9_decode_frame().

static int vp9_ref_frame ( AVCodecContext *  ctx, VP9Frame *  dst, VP9Frame *  src  )

static

Definition at line 219 of file vp9.c.

Referenced by vp9_decode_frame().

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

static

Definition at line 247 of file vp9.c.

Referenced by decode_frame_header().

static int update_block_buffers ( AVCodecContext *  ctx )

static

Definition at line 338 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 381 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 387 of file vp9.c.

Referenced by update_prob().

static int update_prob ( VP56RangeCoder *  c, int  p  )

static

Definition at line 393 of file vp9.c.

Referenced by decode_frame_header().

static int read_colorspace_details ( AVCodecContext *  ctx )

static

Definition at line 451 of file vp9.c.

Referenced by decode_frame_header().

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

static

Definition at line 513 of file vp9.c.

Referenced by vp9_decode_frame().

static av_always_inline void clamp_mv ( VP56mv *  dst, const VP56mv *  src, VP9Context *  s  )

static

Definition at line 1043 of file vp9.c.

Referenced by find_ref_mvs().

static void find_ref_mvs ( VP9Context *  s, VP56mv *  pmv, int  ref, int  z, int  idx, int  sb  )

static

Definition at line 1050 of file vp9.c.

Referenced by fill_mv().

static av_always_inline int read_mv_component ( VP9Context *  s, int  idx, int  hp  )

static

Definition at line 1252 of file vp9.c.

Referenced by fill_mv().

static void fill_mv ( VP9Context *  s, VP56mv *  mv, int  mode, int  sb  )

static

Definition at line 1305 of file vp9.c.

Referenced by decode_mode().

static av_always_inline void setctx_2d ( uint8_t *  ptr, int  w, int  h, ptrdiff_t  stride, int  v  )

static

Definition at line 1378 of file vp9.c.

Referenced by decode_b(), and decode_mode().

static void decode_mode ( AVCodecContext *  ctx )

static

Definition at line 1424 of file vp9.c.

Referenced by decode_b().

static av_always_inline int decode_coeffs_b_generic ( VP56RangeCoder *  c, int16_t *  coef, int  n_coeffs, int  is_tx32x32, int  is8bitsperpixel, int  bpp, unsigned(*)  cnt[6][3], unsigned(*)  eob[6][2], uint8_t(*)  p[6][11], int  nnz, const int16_t *  scan, const int16_t(*)  nb[2], const int16_t *  band_counts, const int16_t *  qmul  )

static

Definition at line 2130 of file vp9.c.

Referenced by decode_coeffs_b32_16bpp(), decode_coeffs_b32_8bpp(), decode_coeffs_b_16bpp(), and decode_coeffs_b_8bpp().

static int decode_coeffs_b_8bpp ( VP9Context *  s, int16_t *  coef, int  n_coeffs, unsigned(*)  cnt[6][3], unsigned(*)  eob[6][2], uint8_t(*)  p[6][11], int  nnz, const int16_t *  scan, const int16_t(*)  nb[2], const int16_t *  band_counts, const int16_t *  qmul  )

static

Definition at line 2253 of file vp9.c.

static int decode_coeffs_b32_8bpp ( VP9Context *  s, int16_t *  coef, int  n_coeffs, unsigned(*)  cnt[6][3], unsigned(*)  eob[6][2], uint8_t(*)  p[6][11], int  nnz, const int16_t *  scan, const int16_t(*)  nb[2], const int16_t *  band_counts, const int16_t *  qmul  )

static

Definition at line 2263 of file vp9.c.

static int decode_coeffs_b_16bpp ( VP9Context *  s, int16_t *  coef, int  n_coeffs, unsigned(*)  cnt[6][3], unsigned(*)  eob[6][2], uint8_t(*)  p[6][11], int  nnz, const int16_t *  scan, const int16_t(*)  nb[2], const int16_t *  band_counts, const int16_t *  qmul  )

static

Definition at line 2273 of file vp9.c.

static int decode_coeffs_b32_16bpp ( VP9Context *  s, int16_t *  coef, int  n_coeffs, unsigned(*)  cnt[6][3], unsigned(*)  eob[6][2], uint8_t(*)  p[6][11], int  nnz, const int16_t *  scan, const int16_t(*)  nb[2], const int16_t *  band_counts, const int16_t *  qmul  )

static

Definition at line 2283 of file vp9.c.

static av_always_inline int decode_coeffs ( AVCodecContext *  ctx, int  is8bitsperpixel  )

static

Definition at line 2293 of file vp9.c.

Referenced by decode_coeffs_16bpp(), and decode_coeffs_8bpp().

static int decode_coeffs_8bpp ( AVCodecContext *  ctx )

static

Definition at line 2460 of file vp9.c.

Referenced by decode_b().

static int decode_coeffs_16bpp ( AVCodecContext *  ctx )

static

Definition at line 2465 of file vp9.c.

Referenced by decode_b().

static av_always_inline int check_intra_mode ( VP9Context *  s, int  mode, uint8_t **  a, uint8_t *  dst_edge, ptrdiff_t  stride_edge, uint8_t *  dst_inner, ptrdiff_t  stride_inner, uint8_t *  l, int  col, int  x, int  w, int  row, int  y, enum TxfmMode  tx, int  p, int  ss_h, int  ss_v, int  bytesperpixel  )

static

Definition at line 2470 of file vp9.c.

Referenced by intra_recon().

static av_always_inline void intra_recon ( AVCodecContext *  ctx, ptrdiff_t  y_off, ptrdiff_t  uv_off, int  bytesperpixel  )

static

Definition at line 2651 of file vp9.c.

Referenced by intra_recon_16bpp(), and intra_recon_8bpp().

static void intra_recon_8bpp ( AVCodecContext *  ctx, ptrdiff_t  y_off, ptrdiff_t  uv_off  )

static

Definition at line 2721 of file vp9.c.

Referenced by decode_b().

static void intra_recon_16bpp ( AVCodecContext *  ctx, ptrdiff_t  y_off, ptrdiff_t  uv_off  )

static

Definition at line 2726 of file vp9.c.

Referenced by decode_b().

static av_always_inline void mc_luma_unscaled ( VP9Context *  s, vp9_mc_func(*)  mc[2], uint8_t *  dst, ptrdiff_t  dst_stride, const uint8_t *  ref, ptrdiff_t  ref_stride, ThreadFrame *  ref_frame, ptrdiff_t  y, ptrdiff_t  x, const VP56mv *  mv, int  bw, int  bh, int  w, int  h, int  bytesperpixel  )

static

Definition at line 2731 of file vp9.c.

Referenced by mc_luma_scaled().

static av_always_inline void mc_chroma_unscaled ( VP9Context *  s, vp9_mc_func(*)  mc[2], uint8_t *  dst_u, uint8_t *  dst_v, ptrdiff_t  dst_stride, const uint8_t *  ref_u, ptrdiff_t  src_stride_u, const uint8_t *  ref_v, ptrdiff_t  src_stride_v, ThreadFrame *  ref_frame, ptrdiff_t  y, ptrdiff_t  x, const VP56mv *  mv, int  bw, int  bh, int  w, int  h, int  bytesperpixel  )

static

Definition at line 2763 of file vp9.c.

Referenced by mc_chroma_scaled().

static av_always_inline void mc_luma_scaled ( VP9Context *  s, vp9_scaled_mc_func  smc, vp9_mc_func(*)  mc[2], uint8_t *  dst, ptrdiff_t  dst_stride, const uint8_t *  ref, ptrdiff_t  ref_stride, ThreadFrame *  ref_frame, ptrdiff_t  y, ptrdiff_t  x, const VP56mv *  in_mv, int  px, int  py, int  pw, int  ph, int  bw, int  bh, int  w, int  h, int  bytesperpixel, const uint16_t *  scale, const uint8_t *  step  )

static

Definition at line 2831 of file vp9.c.

static av_always_inline void mc_chroma_scaled ( VP9Context *  s, vp9_scaled_mc_func  smc, vp9_mc_func(*)  mc[2], uint8_t *  dst_u, uint8_t *  dst_v, ptrdiff_t  dst_stride, const uint8_t *  ref_u, ptrdiff_t  src_stride_u, const uint8_t *  ref_v, ptrdiff_t  src_stride_v, ThreadFrame *  ref_frame, ptrdiff_t  y, ptrdiff_t  x, const VP56mv *  in_mv, int  px, int  py, int  pw, int  ph, int  bw, int  bh, int  w, int  h, int  bytesperpixel, const uint16_t *  scale, const uint8_t *  step  )

static

Definition at line 2885 of file vp9.c.

static av_always_inline void inter_recon ( AVCodecContext *  ctx, int  bytesperpixel  )

static

Definition at line 2986 of file vp9.c.

Referenced by inter_recon_16bpp(), and inter_recon_8bpp().

static void inter_recon_8bpp ( AVCodecContext *  ctx )

static

Definition at line 3052 of file vp9.c.

Referenced by decode_b().

static void inter_recon_16bpp ( AVCodecContext *  ctx )

static

Definition at line 3057 of file vp9.c.

Referenced by decode_b().

static av_always_inline void mask_edges ( uint8_t(*)  mask[8][4], int  ss_h, int  ss_v, int  row_and_7, int  col_and_7, int  w, int  h, int  col_end, int  row_end, enum TxfmMode  tx, int  skip_inter  )

static

Definition at line 3062 of file vp9.c.

Referenced by decode_b().

static void decode_b ( AVCodecContext *  ctx, int  row, int  col, struct VP9Filter *  lflvl, ptrdiff_t  yoff, ptrdiff_t  uvoff, enum BlockLevel  bl, enum BlockPartition  bp  )

static

Definition at line 3184 of file vp9.c.

Referenced by decode_sb(), and decode_sb_mem().

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

static

Definition at line 3384 of file vp9.c.

Referenced by vp9_decode_frame().

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

static

Definition at line 3463 of file vp9.c.

Referenced by vp9_decode_frame().

static av_always_inline void filter_plane_cols ( VP9Context *  s, int  col, int  ss_h, int  ss_v, uint8_t *  lvl, uint8_t(*)  mask[4], uint8_t *  dst, ptrdiff_t  ls  )

static

Definition at line 3512 of file vp9.c.

Referenced by loopfilter_sb().

static av_always_inline void filter_plane_rows ( VP9Context *  s, int  row, int  ss_h, int  ss_v, uint8_t *  lvl, uint8_t(*)  mask[4], uint8_t *  dst, ptrdiff_t  ls  )

static

Definition at line 3587 of file vp9.c.

Referenced by loopfilter_sb().

static void loopfilter_sb ( AVCodecContext *  ctx, struct VP9Filter *  lflvl, int  row, int  col, ptrdiff_t  yoff, ptrdiff_t  uvoff  )

static

Definition at line 3664 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 3690 of file vp9.c.

Referenced by vp9_decode_frame().

static av_always_inline void adapt_prob ( uint8_t *  p, unsigned  ct0, unsigned  ct1, int  max_count, int  update_factor  )

static

Definition at line 3698 of file vp9.c.

Referenced by adapt_probs().

static void adapt_probs ( VP9Context *  s )

static

Definition at line 3716 of file vp9.c.

Referenced by vp9_decode_frame().

static void free_buffers ( VP9Context *  s )

static

Definition at line 3938 of file vp9.c.

Referenced by vp9_decode_free().

static av_cold int vp9_decode_free ( AVCodecContext *  ctx )

static

Definition at line 3945 of file vp9.c.

Referenced by init_frames().

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

static

Definition at line 3971 of file vp9.c.

static void vp9_decode_flush ( AVCodecContext *  ctx )

static

Definition at line 4250 of file vp9.c.

static int init_frames ( AVCodecContext *  ctx )

static

Definition at line 4261 of file vp9.c.

Referenced by vp9_decode_init().

static av_cold int vp9_decode_init ( AVCodecContext *  ctx )

static

Definition at line 4287 of file vp9.c.

Variable Documentation

const uint8_t bwh_tab[2][N_BS_SIZES][2]

static

Initial value:

= {
    {
        { 16, 16 }, { 16, 8 }, { 8, 16 }, { 8, 8 }, { 8, 4 }, { 4, 8 },
        { 4, 4 }, { 4, 2 }, { 2, 4 }, { 2, 2 }, { 2, 1 }, { 1, 2 }, { 1, 1 },
    }, {
        { 8, 8 }, { 8, 4 }, { 4, 8 }, { 4, 4 }, { 4, 2 }, { 2, 4 },
        { 2, 2 }, { 2, 1 }, { 1, 2 }, { 1, 1 }, { 1, 1 }, { 1, 1 }, { 1, 1 },
    }
}

Definition at line 167 of file vp9.c.

Referenced by decode_b(), decode_coeffs(), decode_mode(), inter_pred(), inter_recon(), and intra_recon().

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),
}

Definition at line 4350 of file vp9.c.