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Merge "Multiframe quality enhancement postprocessing"

This commit is contained in:
Deb Mukherjee 2012-01-09 10:23:24 -08:00 коммит произвёл Gerrit Code Review
Родитель 16a02e341c 87aa846b47
Коммит 28aa08748e
7 изменённых файлов: 234 добавлений и 11 удалений
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2
examples/postproc.txt
Просмотреть файл

@ -58,7 +58,7 @@ if(frame_cnt%30 == 1) {
if(vpx_codec_control(&codec, VP8_SET_POSTPROC, &pp))
die_codec(&codec, "Failed to turn off postproc");
} else if(frame_cnt%30 == 16) {
vp8_postproc_cfg_t pp = {VP8_DEBLOCK | VP8_DEMACROBLOCK, 4, 0};
vp8_postproc_cfg_t pp = {VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE, 4, 0};
if(vpx_codec_control(&codec, VP8_SET_POSTPROC, &pp))
die_codec(&codec, "Failed to turn on postproc");

227
vp8/common/postproc.c
Просмотреть файл

@ -12,9 +12,12 @@
#include "vpx_config.h"
#include "vpx_scale/yv12config.h"
#include "postproc.h"
#include "common.h"
#include "recon.h"
#include "vpx_scale/yv12extend.h"
#include "vpx_scale/vpxscale.h"
#include "systemdependent.h"
#include "../encoder/variance.h"
#include <math.h>
#include <stdlib.h>
@ -121,7 +124,6 @@ const short vp8_rv[] =
0, 9, 5, 5, 11, 10, 13, 9, 10, 13,
};
extern void vp8_blit_text(const char *msg, unsigned char *address, const int pitch);
extern void vp8_blit_line(int x0, int x1, int y0, int y1, unsigned char *image, const int pitch);
/***********************************************************************************************************
@ -323,11 +325,11 @@ static void vp8_deblock_and_de_macro_block(YV12_BUFFER_CONFIG *source,
}
void vp8_deblock(YV12_BUFFER_CONFIG *source,
YV12_BUFFER_CONFIG *post,
int q,
int low_var_thresh,
int flag,
vp8_postproc_rtcd_vtable_t *rtcd)
YV12_BUFFER_CONFIG *post,
int q,
int low_var_thresh,
int flag,
vp8_postproc_rtcd_vtable_t *rtcd)
{
double level = 6.0e-05 * q * q * q - .0067 * q * q + .306 * q + .0065;
int ppl = (int)(level + .5);
@ -671,6 +673,210 @@ static void constrain_line (int x0, int *x1, int y0, int *y1, int width, int hei
}
}
static void multiframe_quality_enhance_block
(
int blksize, /* Currently only values supported are 16, 8, 4 */
int qcurr,
int qprev,
unsigned char *y,
unsigned char *u,
unsigned char *v,
int y_stride,
int uv_stride,
unsigned char *yd,
unsigned char *ud,
unsigned char *vd,
int yd_stride,
int uvd_stride
)
{
static const unsigned char VP8_ZEROS[16]=
{
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
};
int blksizeby2 = blksize >> 1;
int blksizesq = blksize * blksize;
int i, j;
unsigned char *yp;
unsigned char *ydp;
unsigned char *up;
unsigned char *udp;
unsigned char *vp;
unsigned char *vdp;
unsigned int act, sse, sad, thr;
if (blksize == 16)
{
act = vp8_variance_var16x16(y, y_stride, VP8_ZEROS, 0, &sse);
sad = vp8_variance_sad16x16(y, y_stride, yd, yd_stride, 0);
}
else if (blksize == 8)
{
act = vp8_variance_var8x8(y, y_stride, VP8_ZEROS, 0, &sse);
sad = vp8_variance_sad8x8(y, y_stride, yd, yd_stride, 0);
}
else
{
act = vp8_variance_var4x4(y, y_stride, VP8_ZEROS, 0, &sse);
sad = vp8_variance_sad4x4(y, y_stride, yd, yd_stride, 0);
}
thr = 6 * blksizesq + (act >> 3);
if (thr > 12 * blksizesq) thr = 12 * blksizesq;
// These thresholds should be adapted later based on qcurr and qprev
if (sad < thr)
{
static const int precision = 4;
static const int roundoff = (1 << (precision - 1));
int ifactor = (sad << precision) / thr;
// TODO: SIMD optimize this section
if (ifactor)
{
int icfactor = (1 << precision) - ifactor;
for (yp = y, ydp = yd, i = 0; i < blksize; ++i, yp += y_stride, ydp += yd_stride)
{
for (j = 0; j < blksize; ++j)
ydp[j] = (int)((yp[j] * ifactor + ydp[j] * icfactor + roundoff) >> precision);
}
for (up = u, udp = ud, i = 0; i < blksizeby2; ++i, up += uv_stride, udp += uvd_stride)
{
for (j = 0; j < blksizeby2; ++j)
udp[j] = (int)((up[j] * ifactor + udp[j] * icfactor + roundoff) >> precision);
}
for (vp = v, vdp = vd, i = 0; i < blksizeby2; ++i, vp += uv_stride, vdp += uvd_stride)
{
for (j = 0; j < blksizeby2; ++j)
vdp[j] = (int)((vp[j] * ifactor + vdp[j] * icfactor + roundoff) >> precision);
}
}
}
else
{
if (blksize == 16)
{
vp8_recon_copy16x16(y, y_stride, yd, yd_stride);
vp8_recon_copy8x8(u, uv_stride, ud, uvd_stride);
vp8_recon_copy8x8(v, uv_stride, vd, uvd_stride);
}
else if (blksize == 8)
{
vp8_recon_copy8x8(y, y_stride, yd, yd_stride);
for (up = u, udp = ud, i = 0; i < blksizeby2; ++i, up += uv_stride, udp += uvd_stride)
vpx_memcpy(udp, up, blksizeby2);
for (vp = v, vdp = vd, i = 0; i < blksizeby2; ++i, vp += uv_stride, vdp += uvd_stride)
vpx_memcpy(vdp, vp, blksizeby2);
}
else
{
for (yp = y, ydp = yd, i = 0; i < blksize; ++i, yp += y_stride, ydp += yd_stride)
vpx_memcpy(ydp, yp, blksize);
for (up = u, udp = ud, i = 0; i < blksizeby2; ++i, up += uv_stride, udp += uvd_stride)
vpx_memcpy(udp, up, blksizeby2);
for (vp = v, vdp = vd, i = 0; i < blksizeby2; ++i, vp += uv_stride, vdp += uvd_stride)
vpx_memcpy(vdp, vp, blksizeby2);
}
}
}
void vp8_multiframe_quality_enhance
(
VP8_COMMON *cm
)
{
YV12_BUFFER_CONFIG *show = cm->frame_to_show;
YV12_BUFFER_CONFIG *dest = &cm->post_proc_buffer;
FRAME_TYPE frame_type = cm->frame_type;
/* Point at base of Mb MODE_INFO list has motion vectors etc */
const MODE_INFO *mode_info_context = cm->mi;
int qcurr = cm->base_qindex;
int qprev = cm->postproc_state.last_base_qindex;
int mb_row;
int mb_col;
unsigned char *y_ptr, *u_ptr, *v_ptr;
unsigned char *yd_ptr, *ud_ptr, *vd_ptr;
/* Set up the buffer pointers */
y_ptr = show->y_buffer;
u_ptr = show->u_buffer;
v_ptr = show->v_buffer;
yd_ptr = dest->y_buffer;
ud_ptr = dest->u_buffer;
vd_ptr = dest->v_buffer;
/* postprocess each macro block */
for (mb_row = 0; mb_row < cm->mb_rows; mb_row++)
{
for (mb_col = 0; mb_col < cm->mb_cols; mb_col++)
{
/* if motion is high there will likely be no benefit */
if (((frame_type == INTER_FRAME &&
abs(mode_info_context->mbmi.mv.as_mv.row) <= 10 &&
abs(mode_info_context->mbmi.mv.as_mv.col) <= 10) ||
(frame_type == KEY_FRAME)) &&
mode_info_context->mbmi.mode != B_PRED)
{
multiframe_quality_enhance_block(16,
qcurr,
qprev,
y_ptr,
u_ptr,
v_ptr,
show->y_stride,
show->uv_stride,
yd_ptr,
ud_ptr,
vd_ptr,
dest->y_stride,
dest->uv_stride);
}
else if (mode_info_context->mbmi.mode == B_PRED)
{
int i, j;
for (i=0; i<2; ++i)
for (j=0; j<2; ++j)
multiframe_quality_enhance_block(8,
qcurr,
qprev,
y_ptr + 8*(i*show->y_stride+j),
u_ptr + 4*(i*show->uv_stride+j),
v_ptr + 4*(i*show->uv_stride+j),
show->y_stride,
show->uv_stride,
yd_ptr + 8*(i*dest->y_stride+j),
ud_ptr + 4*(i*dest->uv_stride+j),
vd_ptr + 4*(i*dest->uv_stride+j),
dest->y_stride,
dest->uv_stride);
}
else
{
vp8_recon_copy16x16(y_ptr, show->y_stride, yd_ptr, dest->y_stride);
vp8_recon_copy8x8(u_ptr, show->uv_stride, ud_ptr, dest->uv_stride);
vp8_recon_copy8x8(v_ptr, show->uv_stride, vd_ptr, dest->uv_stride);
}
y_ptr += 16;
u_ptr += 8;
v_ptr += 8;
yd_ptr += 16;
ud_ptr += 8;
vd_ptr += 8;
mode_info_context++; /* step to next MB */
}
y_ptr += show->y_stride * 16 - 16 * cm->mb_cols;
u_ptr += show->uv_stride * 8 - 8 * cm->mb_cols;
v_ptr += show->uv_stride * 8 - 8 * cm->mb_cols;
yd_ptr += dest->y_stride * 16 - 16 * cm->mb_cols;
ud_ptr += dest->uv_stride * 8 - 8 * cm->mb_cols;
vd_ptr += dest->uv_stride * 8 - 8 * cm->mb_cols;
mode_info_context++; /* Skip border mb */
}
}
#if CONFIG_RUNTIME_CPU_DETECT
#define RTCD_VTABLE(oci) (&(oci)->rtcd.postproc)
@ -699,8 +905,8 @@ int vp8_post_proc_frame(VP8_COMMON *oci, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t
dest->y_width = oci->Width;
dest->y_height = oci->Height;
dest->uv_height = dest->y_height / 2;
oci->postproc_state.last_base_qindex = oci->base_qindex;
return 0;
}
#if ARCH_X86||ARCH_X86_64
@ -717,6 +923,12 @@ int vp8_post_proc_frame(VP8_COMMON *oci, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t
vp8_deblock(oci->frame_to_show, &oci->post_proc_buffer,
q, 1, 0, RTCD_VTABLE(oci));
}
else if ((flags & VP8D_MFQE) &&
oci->current_video_frame >= 2 &&
oci->base_qindex - oci->postproc_state.last_base_qindex >= 10)
{
vp8_multiframe_quality_enhance(oci);
}
else
{
vp8_yv12_copy_frame_ptr(oci->frame_to_show, &oci->post_proc_buffer);
@ -1105,5 +1317,6 @@ int vp8_post_proc_frame(VP8_COMMON *oci, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t
dest->y_width = oci->Width;
dest->y_height = oci->Height;
dest->uv_height = dest->y_height / 2;
oci->postproc_state.last_base_qindex = oci->base_qindex;
return 0;
}

1
vp8/common/postproc.h
Просмотреть файл

@ -104,6 +104,7 @@ struct postproc_state
int last_q;
int last_noise;
char noise[3072];
int last_base_qindex;
DECLARE_ALIGNED(16, char, blackclamp[16]);
DECLARE_ALIGNED(16, char, whiteclamp[16]);
DECLARE_ALIGNED(16, char, bothclamp[16]);

3
vp8/common/ppflags.h
Просмотреть файл

@ -23,7 +23,8 @@ enum
VP8D_DEBUG_TXT_RATE_INFO = 1<<6,
VP8D_DEBUG_DRAW_MV = 1<<7,
VP8D_DEBUG_CLR_BLK_MODES = 1<<8,
VP8D_DEBUG_CLR_FRM_REF_BLKS = 1<<9
VP8D_DEBUG_CLR_FRM_REF_BLKS = 1<<9,
VP8D_MFQE = 1<<10
};
typedef struct

2
vp8/vp8_dx_iface.c
Просмотреть файл

@ -412,7 +412,7 @@ static vpx_codec_err_t vp8_decode(vpx_codec_alg_priv_t *ctx,
&& (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC))
{
ctx->postproc_cfg.post_proc_flag =
VP8_DEBLOCK | VP8_DEMACROBLOCK;
VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE;
ctx->postproc_cfg.deblocking_level = 4;
ctx->postproc_cfg.noise_level = 0;
}

1
vpx/vp8.h
Просмотреть файл

@ -63,6 +63,7 @@ enum vp8_postproc_level
VP8_DEBUG_TXT_MBLK_MODES = 1<<4, /**< print macro block modes over each macro block */
VP8_DEBUG_TXT_DC_DIFF = 1<<5, /**< print dc diff for each macro block */
VP8_DEBUG_TXT_RATE_INFO = 1<<6, /**< print video rate info (encoder only) */
VP8_MFQE = 1<<10,
};
/*!\brief post process flags

9
vpxdec.c
Просмотреть файл

@ -124,11 +124,13 @@ static const arg_def_t pp_disp_b_modes = ARG_DEF(NULL, "pp-dbg-b-modes", 1,
"Display only selected block modes");
static const arg_def_t pp_disp_mvs = ARG_DEF(NULL, "pp-dbg-mvs", 1,
"Draw only selected motion vectors");
static const arg_def_t mfqe = ARG_DEF(NULL, "mfqe", 0,
"Enable multiframe quality enhancement");
static const arg_def_t *vp8_pp_args[] =
{
&addnoise_level, &deblock, &demacroblock_level, &pp_debug_info,
&pp_disp_ref_frame, &pp_disp_mb_modes, &pp_disp_b_modes, &pp_disp_mvs,
&pp_disp_ref_frame, &pp_disp_mb_modes, &pp_disp_b_modes, &pp_disp_mvs, &mfqe,
NULL
};
#endif
@ -803,6 +805,11 @@ int main(int argc, const char **argv_)
postproc = 1;
vp8_pp_cfg.post_proc_flag |= VP8_DEBLOCK;
}
else if (arg_match(&arg, &mfqe, argi))
{
postproc = 1;
vp8_pp_cfg.post_proc_flag |= VP8_MFQE;
}
else if (arg_match(&arg, &pp_debug_info, argi))
{
unsigned int level = arg_parse_uint(&arg);