mirror of https://git.ffmpeg.org/ffmpeg.git
avfilter/vf_v360: rewrite storing of remap positions and interpolations
In preparation of SIMD assembly.
This commit is contained in:
Paul B Mahol
parent
3424600e0b
commit
28dfa1e371
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@ -117,7 +117,8 @@ typedef struct V360Context {
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int inplanewidth[4], inplaneheight[4];
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int nb_planes;
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void *remap[4];
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uint16_t *u[4], *v[4];
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float *ker[4];
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int (*remap_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
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} V360Context;
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@ -249,11 +250,6 @@ static int query_formats(AVFilterContext *ctx)
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return ff_set_common_formats(ctx, fmts_list);
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}
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typedef struct XYRemap1 {
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uint16_t u;
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uint16_t v;
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} XYRemap1;
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/**
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* Generate no-interpolation remapping function with a given pixel depth.
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*
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@ -275,7 +271,6 @@ static int remap1_##bits##bit_slice(AVFilterContext *ctx, void *arg, int jobnr,
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const int out_linesize = out->linesize[plane] / div; \
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const uint##bits##_t *src = (const uint##bits##_t *)in->data[plane]; \
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uint##bits##_t *dst = (uint##bits##_t *)out->data[plane]; \
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const XYRemap1 *remap = s->remap[plane]; \
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const int width = s->planewidth[plane]; \
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const int height = s->planeheight[plane]; \
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\
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@ -283,12 +278,11 @@ static int remap1_##bits##bit_slice(AVFilterContext *ctx, void *arg, int jobnr,
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const int slice_end = (height * (jobnr + 1)) / nb_jobs; \
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\
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for (y = slice_start; y < slice_end; y++) { \
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const uint16_t *u = s->u[plane] + y * width; \
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const uint16_t *v = s->v[plane] + y * width; \
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uint##bits##_t *d = dst + y * out_linesize; \
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for (x = 0; x < width; x++) { \
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const XYRemap1 *r = &remap[y * width + x]; \
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\
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*d++ = src[r->v * in_linesize + r->u]; \
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} \
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for (x = 0; x < width; x++) \
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*d++ = src[v[x] * in_linesize + u[x]]; \
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} \
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} \
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\
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@ -298,27 +292,21 @@ static int remap1_##bits##bit_slice(AVFilterContext *ctx, void *arg, int jobnr,
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DEFINE_REMAP1( 8, 1)
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DEFINE_REMAP1(16, 2)
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typedef struct XYRemap2 {
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uint16_t u[2][2];
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uint16_t v[2][2];
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float ker[2][2];
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} XYRemap2;
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typedef struct XYRemap4 {
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typedef struct XYRemap {
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uint16_t u[4][4];
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uint16_t v[4][4];
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float ker[4][4];
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} XYRemap4;
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} XYRemap;
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/**
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* Generate remapping function with a given window size and pixel depth.
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*
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* @param window_size size of interpolation window
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* @param ws size of interpolation window
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* @param bits number of bits per pixel
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* @param div number of bytes per pixel
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*/
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#define DEFINE_REMAP(window_size, bits, div) \
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static int remap##window_size##_##bits##bit_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
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#define DEFINE_REMAP(ws, bits, div) \
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static int remap##ws##_##bits##bit_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
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{ \
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ThreadData *td = (ThreadData*)arg; \
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const V360Context *s = ctx->priv; \
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@ -332,7 +320,6 @@ static int remap##window_size##_##bits##bit_slice(AVFilterContext *ctx, void *ar
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const int out_linesize = out->linesize[plane] / div; \
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const uint##bits##_t *src = (const uint##bits##_t *)in->data[plane]; \
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uint##bits##_t *dst = (uint##bits##_t *)out->data[plane]; \
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const XYRemap##window_size *remap = s->remap[plane]; \
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const int width = s->planewidth[plane]; \
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const int height = s->planeheight[plane]; \
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\
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@ -341,13 +328,18 @@ static int remap##window_size##_##bits##bit_slice(AVFilterContext *ctx, void *ar
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\
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for (y = slice_start; y < slice_end; y++) { \
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uint##bits##_t *d = dst + y * out_linesize; \
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const uint16_t *u = s->u[plane] + y * width * ws * ws; \
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const uint16_t *v = s->v[plane] + y * width * ws * ws; \
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const float *ker = s->ker[plane] + y * width * ws * ws; \
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for (x = 0; x < width; x++) { \
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const XYRemap##window_size *r = &remap[y * width + x]; \
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const uint16_t *uu = u + x * ws * ws; \
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const uint16_t *vv = v + x * ws * ws; \
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const float *kker = ker + x * ws * ws; \
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float tmp = 0.f; \
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\
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for (i = 0; i < window_size; i++) { \
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for (j = 0; j < window_size; j++) { \
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tmp += r->ker[i][j] * src[r->v[i][j] * in_linesize + r->u[i][j]]; \
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for (i = 0; i < ws; i++) { \
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for (j = 0; j < ws; j++) { \
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tmp += kker[i * ws + j] * src[vv[i * ws + j] * in_linesize + uu[i * ws + j]]; \
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} \
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} \
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\
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@ -369,18 +361,19 @@ DEFINE_REMAP(4, 16, 2)
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*
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* @param du horizontal relative coordinate
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* @param dv vertical relative coordinate
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* @param shift shift for remap array
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* @param r_tmp calculated 4x4 window
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* @param r_void remap data
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* @param u u remap data
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* @param v v remap data
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* @param ker ker remap data
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*/
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static void nearest_kernel(float du, float dv, int shift, const XYRemap4 *r_tmp, void *r_void)
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static void nearest_kernel(float du, float dv, const XYRemap *r_tmp,
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uint16_t *u, uint16_t *v, float *ker)
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{
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XYRemap1 *r = (XYRemap1*)r_void + shift;
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const int i = roundf(dv) + 1;
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const int j = roundf(du) + 1;
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r->u = r_tmp->u[i][j];
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r->v = r_tmp->v[i][j];
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u[0] = r_tmp->u[i][j];
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v[0] = r_tmp->v[i][j];
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}
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/**
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@ -388,26 +381,27 @@ static void nearest_kernel(float du, float dv, int shift, const XYRemap4 *r_tmp,
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*
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* @param du horizontal relative coordinate
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* @param dv vertical relative coordinate
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* @param shift shift for remap array
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* @param r_tmp calculated 4x4 window
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* @param r_void remap data
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* @param u u remap data
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* @param v v remap data
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* @param ker ker remap data
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*/
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static void bilinear_kernel(float du, float dv, int shift, const XYRemap4 *r_tmp, void *r_void)
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static void bilinear_kernel(float du, float dv, const XYRemap *r_tmp,
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uint16_t *u, uint16_t *v, float *ker)
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{
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XYRemap2 *r = (XYRemap2*)r_void + shift;
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int i, j;
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for (i = 0; i < 2; i++) {
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for (j = 0; j < 2; j++) {
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r->u[i][j] = r_tmp->u[i + 1][j + 1];
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r->v[i][j] = r_tmp->v[i + 1][j + 1];
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u[i * 2 + j] = r_tmp->u[i + 1][j + 1];
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v[i * 2 + j] = r_tmp->v[i + 1][j + 1];
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}
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}
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r->ker[0][0] = (1.f - du) * (1.f - dv);
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r->ker[0][1] = du * (1.f - dv);
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r->ker[1][0] = (1.f - du) * dv;
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r->ker[1][1] = du * dv;
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ker[0] = (1.f - du) * (1.f - dv);
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ker[1] = du * (1.f - dv);
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ker[2] = (1.f - du) * dv;
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ker[3] = du * dv;
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}
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/**
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@ -432,13 +426,14 @@ static inline void calculate_bicubic_coeffs(float t, float *coeffs)
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*
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* @param du horizontal relative coordinate
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* @param dv vertical relative coordinate
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* @param shift shift for remap array
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* @param r_tmp calculated 4x4 window
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* @param r_void remap data
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* @param u u remap data
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* @param v v remap data
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* @param ker ker remap data
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*/
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static void bicubic_kernel(float du, float dv, int shift, const XYRemap4 *r_tmp, void *r_void)
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static void bicubic_kernel(float du, float dv, const XYRemap *r_tmp,
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uint16_t *u, uint16_t *v, float *ker)
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{
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XYRemap4 *r = (XYRemap4*)r_void + shift;
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int i, j;
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float du_coeffs[4];
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float dv_coeffs[4];
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@ -448,9 +443,9 @@ static void bicubic_kernel(float du, float dv, int shift, const XYRemap4 *r_tmp,
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 4; j++) {
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r->u[i][j] = r_tmp->u[i][j];
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r->v[i][j] = r_tmp->v[i][j];
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r->ker[i][j] = du_coeffs[j] * dv_coeffs[i];
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u[i * 4 + j] = r_tmp->u[i][j];
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v[i * 4 + j] = r_tmp->v[i][j];
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ker[i * 4 + j] = du_coeffs[j] * dv_coeffs[i];
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}
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}
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}
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@ -486,13 +481,14 @@ static inline void calculate_lanczos_coeffs(float t, float *coeffs)
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*
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* @param du horizontal relative coordinate
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* @param dv vertical relative coordinate
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* @param shift shift for remap array
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* @param r_tmp calculated 4x4 window
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* @param r_void remap data
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* @param u u remap data
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* @param v v remap data
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* @param ker ker remap data
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*/
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static void lanczos_kernel(float du, float dv, int shift, const XYRemap4 *r_tmp, void *r_void)
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static void lanczos_kernel(float du, float dv, const XYRemap *r_tmp,
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uint16_t *u, uint16_t *v, float *ker)
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{
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XYRemap4 *r = (XYRemap4*)r_void + shift;
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int i, j;
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float du_coeffs[4];
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float dv_coeffs[4];
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@ -502,9 +498,9 @@ static void lanczos_kernel(float du, float dv, int shift, const XYRemap4 *r_tmp,
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 4; j++) {
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r->u[i][j] = r_tmp->u[i][j];
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r->v[i][j] = r_tmp->v[i][j];
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r->ker[i][j] = du_coeffs[j] * dv_coeffs[i];
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u[i * 4 + j] = r_tmp->u[i][j];
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v[i * 4 + j] = r_tmp->v[i][j];
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ker[i * 4 + j] = du_coeffs[j] * dv_coeffs[i];
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}
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}
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}
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@ -1975,8 +1971,9 @@ static int config_output(AVFilterLink *outlink)
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V360Context *s = ctx->priv;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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const int depth = desc->comp[0].depth;
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float remap_data_size = 0.f;
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int sizeof_remap;
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int sizeof_uv;
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int sizeof_ker;
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int elements;
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int err;
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int p, h, w;
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float hf, wf;
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@ -1987,29 +1984,38 @@ static int config_output(AVFilterLink *outlink)
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void (*out_transform)(const V360Context *s,
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int i, int j, int width, int height,
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float *vec);
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void (*calculate_kernel)(float du, float dv, int shift, const XYRemap4 *r_tmp, void *r);
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void (*calculate_kernel)(float du, float dv, const XYRemap *r_tmp,
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uint16_t *u, uint16_t *v, float *ker);
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float rot_mat[3][3];
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switch (s->interp) {
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case NEAREST:
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calculate_kernel = nearest_kernel;
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s->remap_slice = depth <= 8 ? remap1_8bit_slice : remap1_16bit_slice;
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sizeof_remap = sizeof(XYRemap1);
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elements = 1;
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sizeof_uv = sizeof(uint16_t) * elements;
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sizeof_ker = 0;
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break;
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case BILINEAR:
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calculate_kernel = bilinear_kernel;
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s->remap_slice = depth <= 8 ? remap2_8bit_slice : remap2_16bit_slice;
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sizeof_remap = sizeof(XYRemap2);
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elements = 2 * 2;
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sizeof_uv = sizeof(uint16_t) * elements;
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sizeof_ker = sizeof(float) * elements;
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break;
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case BICUBIC:
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calculate_kernel = bicubic_kernel;
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s->remap_slice = depth <= 8 ? remap4_8bit_slice : remap4_16bit_slice;
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sizeof_remap = sizeof(XYRemap4);
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elements = 4 * 4;
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sizeof_uv = sizeof(uint16_t) * elements;
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sizeof_ker = sizeof(float) * elements;
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break;
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case LANCZOS:
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calculate_kernel = lanczos_kernel;
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s->remap_slice = depth <= 8 ? remap4_8bit_slice : remap4_16bit_slice;
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sizeof_remap = sizeof(XYRemap4);
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elements = 4 * 4;
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sizeof_uv = sizeof(uint16_t) * elements;
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sizeof_ker = sizeof(float) * elements;
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break;
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}
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@ -2147,16 +2153,14 @@ static int config_output(AVFilterLink *outlink)
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s->nb_planes = av_pix_fmt_count_planes(inlink->format);
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for (p = 0; p < s->nb_planes; p++) {
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remap_data_size += (float)s->planewidth[p] * s->planeheight[p] * sizeof_remap;
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}
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for (p = 0; p < s->nb_planes; p++) {
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s->remap[p] = av_calloc(s->planewidth[p] * s->planeheight[p], sizeof_remap);
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if (!s->remap[p]) {
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av_log(ctx, AV_LOG_ERROR,
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"Not enough memory to allocate remap data. Need at least %.3f GiB.\n",
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remap_data_size / (1024 * 1024 * 1024));
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s->u[p] = av_calloc(s->planewidth[p] * s->planeheight[p], sizeof_uv);
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s->v[p] = av_calloc(s->planewidth[p] * s->planeheight[p], sizeof_uv);
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if (!s->u[p] || !s->v[p])
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return AVERROR(ENOMEM);
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if (sizeof_ker) {
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s->ker[p] = av_calloc(s->planewidth[p] * s->planeheight[p], sizeof_ker);
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if (!s->ker[p])
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return AVERROR(ENOMEM);
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}
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}
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@ -2169,19 +2173,22 @@ static int config_output(AVFilterLink *outlink)
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const int height = s->planeheight[p];
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const int in_width = s->inplanewidth[p];
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const int in_height = s->inplaneheight[p];
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void *r = s->remap[p];
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float du, dv;
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float vec[3];
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XYRemap4 r_tmp;
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XYRemap r_tmp;
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int i, j;
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for (i = 0; i < width; i++) {
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for (j = 0; j < height; j++) {
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uint16_t *u = s->u[p] + (j * width + i) * elements;
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uint16_t *v = s->v[p] + (j * width + i) * elements;
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float *ker = s->ker[p] + (j * width + i) * elements;
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out_transform(s, i, j, width, height, vec);
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rotate(rot_mat, vec);
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mirror(mirror_modifier, vec);
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in_transform(s, vec, in_width, in_height, r_tmp.u, r_tmp.v, &du, &dv);
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calculate_kernel(du, dv, j * width + i, &r_tmp, r);
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calculate_kernel(du, dv, &r_tmp, u, v, ker);
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}
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}
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}
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@ -2218,8 +2225,11 @@ static av_cold void uninit(AVFilterContext *ctx)
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V360Context *s = ctx->priv;
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int p;
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for (p = 0; p < s->nb_planes; p++)
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av_freep(&s->remap[p]);
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for (p = 0; p < s->nb_planes; p++) {
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av_freep(&s->u[p]);
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av_freep(&s->v[p]);
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av_freep(&s->ker[p]);
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}
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}
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static const AVFilterPad inputs[] = {
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