[FFmpeg-cvslog] avfilter/scale_cuda: add bicubic interpolation
Timo Rothenpieler
git at videolan.org
Tue Nov 3 21:01:07 EET 2020
ffmpeg | branch: master | Timo Rothenpieler <timo at rothenpieler.org> | Sat Oct 31 20:22:33 2020 +0100| [f1d0f83712470c0fef13b8215cccbdb77ba7f3bf] | committer: Timo Rothenpieler
avfilter/scale_cuda: add bicubic interpolation
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f1d0f83712470c0fef13b8215cccbdb77ba7f3bf
---
compat/cuda/cuda_runtime.h | 68 ++++++++++++--
libavfilter/Makefile | 3 +-
libavfilter/cuda/vector_helpers.cuh | 112 ++++++++++++++++++++++
libavfilter/version.h | 2 +-
libavfilter/vf_scale_cuda.c | 113 ++++++++++++++++-------
libavfilter/vf_scale_cuda_bicubic.cu | 174 +++++++++++++++++++++++++++++++++++
6 files changed, 429 insertions(+), 43 deletions(-)
diff --git a/compat/cuda/cuda_runtime.h b/compat/cuda/cuda_runtime.h
index 92c55ad859..353efcf5f9 100644
--- a/compat/cuda/cuda_runtime.h
+++ b/compat/cuda/cuda_runtime.h
@@ -49,18 +49,23 @@ typedef struct __device_builtin__ __align__(4) ushort2
unsigned short x, y;
} ushort2;
-typedef struct __device_builtin__ uint3
+typedef struct __device_builtin__ __align__(8) float2
{
- unsigned int x, y, z;
-} uint3;
-
-typedef struct uint3 dim3;
+ float x, y;
+} float2;
typedef struct __device_builtin__ __align__(8) int2
{
int x, y;
} int2;
+typedef struct __device_builtin__ uint3
+{
+ unsigned int x, y, z;
+} uint3;
+
+typedef struct uint3 dim3;
+
typedef struct __device_builtin__ __align__(4) uchar4
{
unsigned char x, y, z, w;
@@ -76,6 +81,11 @@ typedef struct __device_builtin__ __align__(16) int4
int x, y, z, w;
} int4;
+typedef struct __device_builtin__ __align__(16) float4
+{
+ float x, y, z, w;
+} float4;
+
// Accessors for special registers
#define GETCOMP(reg, comp) \
asm("mov.u32 %0, %%" #reg "." #comp ";" : "=r"(tmp)); \
@@ -100,24 +110,31 @@ GET(getThreadIdx, tid)
#define threadIdx (getThreadIdx())
// Basic initializers (simple macros rather than inline functions)
+#define make_int2(a, b) ((int2){.x = a, .y = b})
#define make_uchar2(a, b) ((uchar2){.x = a, .y = b})
#define make_ushort2(a, b) ((ushort2){.x = a, .y = b})
+#define make_float2(a, b) ((float2){.x = a, .y = b})
+#define make_int4(a, b, c, d) ((int4){.x = a, .y = b, .z = c, .w = d})
#define make_uchar4(a, b, c, d) ((uchar4){.x = a, .y = b, .z = c, .w = d})
#define make_ushort4(a, b, c, d) ((ushort4){.x = a, .y = b, .z = c, .w = d})
+#define make_float4(a, b, c, d) ((float4){.x = a, .y = b, .z = c, .w = d})
// Conversions from the tex instruction's 4-register output to various types
#define TEX2D(type, ret) static inline __device__ void conv(type* out, unsigned a, unsigned b, unsigned c, unsigned d) {*out = (ret);}
TEX2D(unsigned char, a & 0xFF)
TEX2D(unsigned short, a & 0xFFFF)
+TEX2D(float, a)
TEX2D(uchar2, make_uchar2(a & 0xFF, b & 0xFF))
TEX2D(ushort2, make_ushort2(a & 0xFFFF, b & 0xFFFF))
+TEX2D(float2, make_float2(a, b))
TEX2D(uchar4, make_uchar4(a & 0xFF, b & 0xFF, c & 0xFF, d & 0xFF))
TEX2D(ushort4, make_ushort4(a & 0xFFFF, b & 0xFFFF, c & 0xFFFF, d & 0xFFFF))
+TEX2D(float4, make_float4(a, b, c, d))
// Template calling tex instruction and converting the output to the selected type
-template <class T>
-static inline __device__ T tex2D(cudaTextureObject_t texObject, float x, float y)
+template<typename T>
+inline __device__ T tex2D(cudaTextureObject_t texObject, float x, float y)
{
T ret;
unsigned ret1, ret2, ret3, ret4;
@@ -128,4 +145,41 @@ static inline __device__ T tex2D(cudaTextureObject_t texObject, float x, float y
return ret;
}
+template<>
+inline __device__ float4 tex2D<float4>(cudaTextureObject_t texObject, float x, float y)
+{
+ float4 ret;
+ asm("tex.2d.v4.f32.f32 {%0, %1, %2, %3}, [%4, {%5, %6}];" :
+ "=r"(ret.x), "=r"(ret.y), "=r"(ret.z), "=r"(ret.w) :
+ "l"(texObject), "f"(x), "f"(y));
+ return ret;
+}
+
+template<>
+inline __device__ float tex2D<float>(cudaTextureObject_t texObject, float x, float y)
+{
+ return tex2D<float4>(texObject, x, y).x;
+}
+
+template<>
+inline __device__ float2 tex2D<float2>(cudaTextureObject_t texObject, float x, float y)
+{
+ float4 ret = tex2D<float4>(texObject, x, y);
+ return make_float2(ret.x, ret.y);
+}
+
+// Math helper functions
+static inline __device__ float floorf(float a) { return __builtin_floorf(a); }
+static inline __device__ float floor(float a) { return __builtin_floorf(a); }
+static inline __device__ double floor(double a) { return __builtin_floor(a); }
+static inline __device__ float ceilf(float a) { return __builtin_ceilf(a); }
+static inline __device__ float ceil(float a) { return __builtin_ceilf(a); }
+static inline __device__ double ceil(double a) { return __builtin_ceil(a); }
+static inline __device__ float truncf(float a) { return __builtin_truncf(a); }
+static inline __device__ float trunc(float a) { return __builtin_truncf(a); }
+static inline __device__ double trunc(double a) { return __builtin_trunc(a); }
+static inline __device__ float fabsf(float a) { return __builtin_fabsf(a); }
+static inline __device__ float fabs(float a) { return __builtin_fabsf(a); }
+static inline __device__ double fabs(double a) { return __builtin_fabs(a); }
+
#endif /* COMPAT_CUDA_CUDA_RUNTIME_H */
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 1e60c55f6f..65d03f9191 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -374,7 +374,8 @@ OBJS-$(CONFIG_ROBERTS_OPENCL_FILTER) += vf_convolution_opencl.o opencl.o
OBJS-$(CONFIG_ROTATE_FILTER) += vf_rotate.o
OBJS-$(CONFIG_SAB_FILTER) += vf_sab.o
OBJS-$(CONFIG_SCALE_FILTER) += vf_scale.o scale_eval.o
-OBJS-$(CONFIG_SCALE_CUDA_FILTER) += vf_scale_cuda.o vf_scale_cuda.ptx.o scale_eval.o
+OBJS-$(CONFIG_SCALE_CUDA_FILTER) += vf_scale_cuda.o scale_eval.o \
+ vf_scale_cuda.ptx.o vf_scale_cuda_bicubic.ptx.o
OBJS-$(CONFIG_SCALE_NPP_FILTER) += vf_scale_npp.o scale_eval.o
OBJS-$(CONFIG_SCALE_QSV_FILTER) += vf_scale_qsv.o
OBJS-$(CONFIG_SCALE_VAAPI_FILTER) += vf_scale_vaapi.o scale_eval.o vaapi_vpp.o
diff --git a/libavfilter/cuda/vector_helpers.cuh b/libavfilter/cuda/vector_helpers.cuh
new file mode 100644
index 0000000000..67332ef030
--- /dev/null
+++ b/libavfilter/cuda/vector_helpers.cuh
@@ -0,0 +1,112 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef AVFILTER_CUDA_VECTORHELPERS_H
+#define AVFILTER_CUDA_VECTORHELPERS_H
+
+typedef unsigned char uchar;
+typedef unsigned short ushort;
+
+template<typename T> struct vector_helper { };
+template<> struct vector_helper<uchar> { typedef float ftype; typedef int itype; };
+template<> struct vector_helper<uchar2> { typedef float2 ftype; typedef int2 itype; };
+template<> struct vector_helper<uchar4> { typedef float4 ftype; typedef int4 itype; };
+template<> struct vector_helper<ushort> { typedef float ftype; typedef int itype; };
+template<> struct vector_helper<ushort2> { typedef float2 ftype; typedef int2 itype; };
+template<> struct vector_helper<ushort4> { typedef float4 ftype; typedef int4 itype; };
+template<> struct vector_helper<int> { typedef float ftype; typedef int itype; };
+template<> struct vector_helper<int2> { typedef float2 ftype; typedef int2 itype; };
+template<> struct vector_helper<int4> { typedef float4 ftype; typedef int4 itype; };
+
+#define floatT typename vector_helper<T>::ftype
+#define intT typename vector_helper<T>::itype
+
+template<typename T, typename V> inline __device__ V to_floatN(const T &a) { return (V)a; }
+template<typename T, typename V> inline __device__ T from_floatN(const V &a) { return (T)a; }
+
+#define OPERATORS2(T) \
+ template<typename V> inline __device__ T operator+(const T &a, const V &b) { return make_ ## T (a.x + b.x, a.y + b.y); } \
+ template<typename V> inline __device__ T operator-(const T &a, const V &b) { return make_ ## T (a.x - b.x, a.y - b.y); } \
+ template<typename V> inline __device__ T operator*(const T &a, V b) { return make_ ## T (a.x * b, a.y * b); } \
+ template<typename V> inline __device__ T operator/(const T &a, V b) { return make_ ## T (a.x / b, a.y / b); } \
+ template<typename V> inline __device__ T operator>>(const T &a, V b) { return make_ ## T (a.x >> b, a.y >> b); } \
+ template<typename V> inline __device__ T operator<<(const T &a, V b) { return make_ ## T (a.x << b, a.y << b); } \
+ template<typename V> inline __device__ T &operator+=(T &a, const V &b) { a.x += b.x; a.y += b.y; return a; } \
+ template<typename V> inline __device__ void vec_set(T &a, const V &b) { a.x = b.x; a.y = b.y; } \
+ template<typename V> inline __device__ void vec_set_scalar(T &a, V b) { a.x = b; a.y = b; } \
+ template<> inline __device__ float2 to_floatN<T, float2>(const T &a) { return make_float2(a.x, a.y); } \
+ template<> inline __device__ T from_floatN<T, float2>(const float2 &a) { return make_ ## T(a.x, a.y); }
+#define OPERATORS4(T) \
+ template<typename V> inline __device__ T operator+(const T &a, const V &b) { return make_ ## T (a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w); } \
+ template<typename V> inline __device__ T operator-(const T &a, const V &b) { return make_ ## T (a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w); } \
+ template<typename V> inline __device__ T operator*(const T &a, V b) { return make_ ## T (a.x * b, a.y * b, a.z * b, a.w * b); } \
+ template<typename V> inline __device__ T operator/(const T &a, V b) { return make_ ## T (a.x / b, a.y / b, a.z / b, a.w / b); } \
+ template<typename V> inline __device__ T operator>>(const T &a, V b) { return make_ ## T (a.x >> b, a.y >> b, a.z >> b, a.w >> b); } \
+ template<typename V> inline __device__ T operator<<(const T &a, V b) { return make_ ## T (a.x << b, a.y << b, a.z << b, a.w << b); } \
+ template<typename V> inline __device__ T &operator+=(T &a, const V &b) { a.x += b.x; a.y += b.y; a.z += b.z; a.w += b.w; return a; } \
+ template<typename V> inline __device__ void vec_set(T &a, const V &b) { a.x = b.x; a.y = b.y; a.z = b.z; a.w = b.w; } \
+ template<typename V> inline __device__ void vec_set_scalar(T &a, V b) { a.x = b; a.y = b; a.z = b; a.w = b; } \
+ template<> inline __device__ float4 to_floatN<T, float4>(const T &a) { return make_float4(a.x, a.y, a.z, a.w); } \
+ template<> inline __device__ T from_floatN<T, float4>(const float4 &a) { return make_ ## T(a.x, a.y, a.z, a.w); }
+
+OPERATORS2(int2)
+OPERATORS2(uchar2)
+OPERATORS2(ushort2)
+OPERATORS2(float2)
+OPERATORS4(int4)
+OPERATORS4(uchar4)
+OPERATORS4(ushort4)
+OPERATORS4(float4)
+
+template<typename V> inline __device__ void vec_set(int &a, V b) { a = b; }
+template<typename V> inline __device__ void vec_set(float &a, V b) { a = b; }
+template<typename V> inline __device__ void vec_set(uchar &a, V b) { a = b; }
+template<typename V> inline __device__ void vec_set(ushort &a, V b) { a = b; }
+template<typename V> inline __device__ void vec_set_scalar(int &a, V b) { a = b; }
+template<typename V> inline __device__ void vec_set_scalar(float &a, V b) { a = b; }
+template<typename V> inline __device__ void vec_set_scalar(uchar &a, V b) { a = b; }
+template<typename V> inline __device__ void vec_set_scalar(ushort &a, V b) { a = b; }
+
+template<typename T>
+inline __device__ T lerp_scalar(T v0, T v1, float t) {
+ return t*v1 + (1.0f - t)*v0;
+}
+
+template<>
+inline __device__ float2 lerp_scalar<float2>(float2 v0, float2 v1, float t) {
+ return make_float2(
+ lerp_scalar(v0.x, v1.x, t),
+ lerp_scalar(v0.y, v1.y, t)
+ );
+}
+
+template<>
+inline __device__ float4 lerp_scalar<float4>(float4 v0, float4 v1, float t) {
+ return make_float4(
+ lerp_scalar(v0.x, v1.x, t),
+ lerp_scalar(v0.y, v1.y, t),
+ lerp_scalar(v0.z, v1.z, t),
+ lerp_scalar(v0.w, v1.w, t)
+ );
+}
+
+#endif
diff --git a/libavfilter/version.h b/libavfilter/version.h
index b8ba489da7..2db35f85af 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -31,7 +31,7 @@
#define LIBAVFILTER_VERSION_MAJOR 7
#define LIBAVFILTER_VERSION_MINOR 88
-#define LIBAVFILTER_VERSION_MICRO 100
+#define LIBAVFILTER_VERSION_MICRO 101
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
diff --git a/libavfilter/vf_scale_cuda.c b/libavfilter/vf_scale_cuda.c
index 9d59ed4863..b287bd8c12 100644
--- a/libavfilter/vf_scale_cuda.c
+++ b/libavfilter/vf_scale_cuda.c
@@ -55,6 +55,15 @@ static const enum AVPixelFormat supported_formats[] = {
#define CHECK_CU(x) FF_CUDA_CHECK_DL(ctx, s->hwctx->internal->cuda_dl, x)
+enum {
+ INTERP_ALGO_DEFAULT,
+
+ INTERP_ALGO_BILINEAR,
+ INTERP_ALGO_BICUBIC,
+
+ INTERP_ALGO_COUNT
+};
+
typedef struct CUDAScaleContext {
const AVClass *class;
@@ -98,6 +107,9 @@ typedef struct CUDAScaleContext {
CUdeviceptr srcBuffer;
CUdeviceptr dstBuffer;
int tex_alignment;
+
+ int interp_algo;
+ int interp_use_linear;
} CUDAScaleContext;
static av_cold int cudascale_init(AVFilterContext *ctx)
@@ -269,10 +281,32 @@ static av_cold int cudascale_config_props(AVFilterLink *outlink)
AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
CUcontext dummy, cuda_ctx = device_hwctx->cuda_ctx;
CudaFunctions *cu = device_hwctx->internal->cuda_dl;
+ char buf[64];
int w, h;
int ret;
+ char *scaler_ptx;
+ const char *function_infix = "";
+
extern char vf_scale_cuda_ptx[];
+ extern char vf_scale_cuda_bicubic_ptx[];
+
+ switch(s->interp_algo) {
+ case INTERP_ALGO_BILINEAR:
+ scaler_ptx = vf_scale_cuda_ptx;
+ function_infix = "_Bilinear";
+ s->interp_use_linear = 1;
+ break;
+ case INTERP_ALGO_DEFAULT:
+ case INTERP_ALGO_BICUBIC:
+ scaler_ptx = vf_scale_cuda_bicubic_ptx;
+ function_infix = "_Bicubic";
+ s->interp_use_linear = 0;
+ break;
+ default:
+ av_log(ctx, AV_LOG_ERROR, "Unknown interpolation algorithm\n");
+ return AVERROR_BUG;
+ }
s->hwctx = device_hwctx;
s->cu_stream = s->hwctx->stream;
@@ -281,31 +315,37 @@ static av_cold int cudascale_config_props(AVFilterLink *outlink)
if (ret < 0)
goto fail;
- ret = CHECK_CU(cu->cuModuleLoadData(&s->cu_module, vf_scale_cuda_ptx));
+ ret = CHECK_CU(cu->cuModuleLoadData(&s->cu_module, scaler_ptx));
if (ret < 0)
goto fail;
- CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar, s->cu_module, "Subsample_Bilinear_uchar"));
+ snprintf(buf, sizeof(buf), "Subsample%s_uchar", function_infix);
+ CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar, s->cu_module, buf));
if (ret < 0)
goto fail;
- CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar2, s->cu_module, "Subsample_Bilinear_uchar2"));
+ snprintf(buf, sizeof(buf), "Subsample%s_uchar2", function_infix);
+ CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar2, s->cu_module, buf));
if (ret < 0)
goto fail;
- CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar4, s->cu_module, "Subsample_Bilinear_uchar4"));
+ snprintf(buf, sizeof(buf), "Subsample%s_uchar4", function_infix);
+ CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar4, s->cu_module, buf));
if (ret < 0)
goto fail;
- CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort, s->cu_module, "Subsample_Bilinear_ushort"));
+ snprintf(buf, sizeof(buf), "Subsample%s_ushort", function_infix);
+ CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort, s->cu_module, buf));
if (ret < 0)
goto fail;
- CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort2, s->cu_module, "Subsample_Bilinear_ushort2"));
+ snprintf(buf, sizeof(buf), "Subsample%s_ushort2", function_infix);
+ CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort2, s->cu_module, buf));
if (ret < 0)
goto fail;
- CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort4, s->cu_module, "Subsample_Bilinear_ushort4"));
+ snprintf(buf, sizeof(buf), "Subsample%s_ushort4", function_infix);
+ CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort4, s->cu_module, buf));
if (ret < 0)
goto fail;
@@ -352,17 +392,19 @@ fail:
static int call_resize_kernel(AVFilterContext *ctx, CUfunction func, int channels,
uint8_t *src_dptr, int src_width, int src_height, int src_pitch,
uint8_t *dst_dptr, int dst_width, int dst_height, int dst_pitch,
- int pixel_size)
+ int pixel_size, int bit_depth)
{
CUDAScaleContext *s = ctx->priv;
CudaFunctions *cu = s->hwctx->internal->cuda_dl;
CUdeviceptr dst_devptr = (CUdeviceptr)dst_dptr;
CUtexObject tex = 0;
- void *args_uchar[] = { &tex, &dst_devptr, &dst_width, &dst_height, &dst_pitch, &src_width, &src_height };
+ void *args_uchar[] = { &tex, &dst_devptr, &dst_width, &dst_height, &dst_pitch, &src_width, &src_height, &src_pitch, &bit_depth };
int ret;
CUDA_TEXTURE_DESC tex_desc = {
- .filterMode = CU_TR_FILTER_MODE_LINEAR,
+ .filterMode = s->interp_use_linear ?
+ CU_TR_FILTER_MODE_LINEAR :
+ CU_TR_FILTER_MODE_POINT,
.flags = CU_TRSF_READ_AS_INTEGER,
};
@@ -404,73 +446,73 @@ static int scalecuda_resize(AVFilterContext *ctx,
call_resize_kernel(ctx, s->cu_func_uchar, 1,
in->data[0], in->width, in->height, in->linesize[0],
out->data[0], out->width, out->height, out->linesize[0],
- 1);
+ 1, 8);
call_resize_kernel(ctx, s->cu_func_uchar, 1,
- in->data[1], in->width/2, in->height/2, in->linesize[0]/2,
- out->data[1], out->width/2, out->height/2, out->linesize[0]/2,
- 1);
+ in->data[1], in->width / 2, in->height / 2, in->linesize[0] / 2,
+ out->data[1], out->width / 2, out->height / 2, out->linesize[0] / 2,
+ 1, 8);
call_resize_kernel(ctx, s->cu_func_uchar, 1,
- in->data[2], in->width/2, in->height/2, in->linesize[0]/2,
- out->data[2], out->width/2, out->height/2, out->linesize[0]/2,
- 1);
+ in->data[2], in->width / 2, in->height / 2, in->linesize[0] / 2,
+ out->data[2], out->width / 2, out->height / 2, out->linesize[0] / 2,
+ 1, 8);
break;
case AV_PIX_FMT_YUV444P:
call_resize_kernel(ctx, s->cu_func_uchar, 1,
in->data[0], in->width, in->height, in->linesize[0],
out->data[0], out->width, out->height, out->linesize[0],
- 1);
+ 1, 8);
call_resize_kernel(ctx, s->cu_func_uchar, 1,
in->data[1], in->width, in->height, in->linesize[0],
out->data[1], out->width, out->height, out->linesize[0],
- 1);
+ 1, 8);
call_resize_kernel(ctx, s->cu_func_uchar, 1,
in->data[2], in->width, in->height, in->linesize[0],
out->data[2], out->width, out->height, out->linesize[0],
- 1);
+ 1, 8);
break;
case AV_PIX_FMT_YUV444P16:
call_resize_kernel(ctx, s->cu_func_ushort, 1,
in->data[0], in->width, in->height, in->linesize[0] / 2,
out->data[0], out->width, out->height, out->linesize[0] / 2,
- 2);
+ 2, 16);
call_resize_kernel(ctx, s->cu_func_ushort, 1,
in->data[1], in->width, in->height, in->linesize[1] / 2,
out->data[1], out->width, out->height, out->linesize[1] / 2,
- 2);
+ 2, 16);
call_resize_kernel(ctx, s->cu_func_ushort, 1,
in->data[2], in->width, in->height, in->linesize[2] / 2,
out->data[2], out->width, out->height, out->linesize[2] / 2,
- 2);
+ 2, 16);
break;
case AV_PIX_FMT_NV12:
call_resize_kernel(ctx, s->cu_func_uchar, 1,
in->data[0], in->width, in->height, in->linesize[0],
out->data[0], out->width, out->height, out->linesize[0],
- 1);
+ 1, 8);
call_resize_kernel(ctx, s->cu_func_uchar2, 2,
- in->data[1], in->width/2, in->height/2, in->linesize[1],
- out->data[1], out->width/2, out->height/2, out->linesize[1]/2,
- 1);
+ in->data[1], in->width / 2, in->height / 2, in->linesize[1],
+ out->data[1], out->width / 2, out->height / 2, out->linesize[1] / 2,
+ 1, 8);
break;
case AV_PIX_FMT_P010LE:
call_resize_kernel(ctx, s->cu_func_ushort, 1,
- in->data[0], in->width, in->height, in->linesize[0]/2,
- out->data[0], out->width, out->height, out->linesize[0]/2,
- 2);
+ in->data[0], in->width, in->height, in->linesize[0] / 2,
+ out->data[0], out->width, out->height, out->linesize[0] / 2,
+ 2, 10);
call_resize_kernel(ctx, s->cu_func_ushort2, 2,
- in->data[1], in->width / 2, in->height / 2, in->linesize[1]/2,
+ in->data[1], in->width / 2, in->height / 2, in->linesize[1] / 2,
out->data[1], out->width / 2, out->height / 2, out->linesize[1] / 4,
- 2);
+ 2, 10);
break;
case AV_PIX_FMT_P016LE:
call_resize_kernel(ctx, s->cu_func_ushort, 1,
in->data[0], in->width, in->height, in->linesize[0] / 2,
out->data[0], out->width, out->height, out->linesize[0] / 2,
- 2);
+ 2, 16);
call_resize_kernel(ctx, s->cu_func_ushort2, 2,
in->data[1], in->width / 2, in->height / 2, in->linesize[1] / 2,
out->data[1], out->width / 2, out->height / 2, out->linesize[1] / 4,
- 2);
+ 2, 16);
break;
default:
return AVERROR_BUG;
@@ -552,6 +594,9 @@ fail:
static const AVOption options[] = {
{ "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS },
{ "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS },
+ { "interp_algo", "Interpolation algorithm used for resizing", OFFSET(interp_algo), AV_OPT_TYPE_INT, { .i64 = INTERP_ALGO_DEFAULT }, 0, INTERP_ALGO_COUNT - 1, FLAGS, "interp_algo" },
+ { "bilinear", "bilinear", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_BILINEAR }, 0, 0, FLAGS, "interp_algo" },
+ { "bicubic", "bicubic", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_BICUBIC }, 0, 0, FLAGS, "interp_algo" },
{ "force_original_aspect_ratio", "decrease or increase w/h if necessary to keep the original AR", OFFSET(force_original_aspect_ratio), AV_OPT_TYPE_INT, { .i64 = 0}, 0, 2, FLAGS, "force_oar" },
{ "disable", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, 0, 0, FLAGS, "force_oar" },
{ "decrease", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, 0, 0, FLAGS, "force_oar" },
diff --git a/libavfilter/vf_scale_cuda_bicubic.cu b/libavfilter/vf_scale_cuda_bicubic.cu
new file mode 100644
index 0000000000..8a27927e60
--- /dev/null
+++ b/libavfilter/vf_scale_cuda_bicubic.cu
@@ -0,0 +1,174 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "cuda/vector_helpers.cuh"
+
+__device__ inline float4 bicubic_coeffs(float x)
+{
+ const float A = -0.75f;
+
+ float4 res;
+ res.x = ((A * (x + 1) - 5 * A) * (x + 1) + 8 * A) * (x + 1) - 4 * A;
+ res.y = ((A + 2) * x - (A + 3)) * x * x + 1;
+ res.z = ((A + 2) * (1 - x) - (A + 3)) * (1 - x) * (1 - x) + 1;
+ res.w = 1.0f - res.x - res.y - res.z;
+
+ return res;
+}
+
+__device__ inline void bicubic_fast_coeffs(float x, float *h0, float *h1, float *s)
+{
+ float4 coeffs = bicubic_coeffs(x);
+
+ float g0 = coeffs.x + coeffs.y;
+ float g1 = coeffs.z + coeffs.w;
+
+ *h0 = coeffs.y / g0 - 0.5f;
+ *h1 = coeffs.w / g1 + 1.5f;
+ *s = g0 / (g0 + g1);
+}
+
+template<typename V>
+__device__ inline V bicubic_filter(float4 coeffs, V c0, V c1, V c2, V c3)
+{
+ V res = c0 * coeffs.x;
+ res += c1 * coeffs.y;
+ res += c2 * coeffs.z;
+ res += c3 * coeffs.w;
+
+ return res;
+}
+
+template<typename T>
+__device__ inline void Subsample_Bicubic(cudaTextureObject_t src_tex,
+ T *dst,
+ int dst_width, int dst_height, int dst_pitch,
+ int src_width, int src_height,
+ int bit_depth)
+{
+ int xo = blockIdx.x * blockDim.x + threadIdx.x;
+ int yo = blockIdx.y * blockDim.y + threadIdx.y;
+
+ if (yo < dst_height && xo < dst_width)
+ {
+ float hscale = (float)src_width / (float)dst_width;
+ float vscale = (float)src_height / (float)dst_height;
+ float xi = (xo + 0.5f) * hscale - 0.5f;
+ float yi = (yo + 0.5f) * vscale - 0.5f;
+ float px = floor(xi);
+ float py = floor(yi);
+ float fx = xi - px;
+ float fy = yi - py;
+
+ float factor = bit_depth > 8 ? 0xFFFF : 0xFF;
+
+ float4 coeffsX = bicubic_coeffs(fx);
+ float4 coeffsY = bicubic_coeffs(fy);
+
+#define PIX(x, y) tex2D<floatT>(src_tex, (x), (y))
+
+ dst[yo * dst_pitch + xo] = from_floatN<T, floatT>(
+ bicubic_filter<floatT>(coeffsY,
+ bicubic_filter<floatT>(coeffsX, PIX(px - 1, py - 1), PIX(px, py - 1), PIX(px + 1, py - 1), PIX(px + 2, py - 1)),
+ bicubic_filter<floatT>(coeffsX, PIX(px - 1, py ), PIX(px, py ), PIX(px + 1, py ), PIX(px + 2, py )),
+ bicubic_filter<floatT>(coeffsX, PIX(px - 1, py + 1), PIX(px, py + 1), PIX(px + 1, py + 1), PIX(px + 2, py + 1)),
+ bicubic_filter<floatT>(coeffsX, PIX(px - 1, py + 2), PIX(px, py + 2), PIX(px + 1, py + 2), PIX(px + 2, py + 2))
+ ) * factor
+ );
+
+#undef PIX
+ }
+}
+
+/* This does not yield correct results. Most likely because of low internal precision in tex2D linear interpolation */
+template<typename T>
+__device__ inline void Subsample_FastBicubic(cudaTextureObject_t src_tex,
+ T *dst,
+ int dst_width, int dst_height, int dst_pitch,
+ int src_width, int src_height,
+ int bit_depth)
+{
+ int xo = blockIdx.x * blockDim.x + threadIdx.x;
+ int yo = blockIdx.y * blockDim.y + threadIdx.y;
+
+ if (yo < dst_height && xo < dst_width)
+ {
+ float hscale = (float)src_width / (float)dst_width;
+ float vscale = (float)src_height / (float)dst_height;
+ float xi = (xo + 0.5f) * hscale - 0.5f;
+ float yi = (yo + 0.5f) * vscale - 0.5f;
+ float px = floor(xi);
+ float py = floor(yi);
+ float fx = xi - px;
+ float fy = yi - py;
+
+ float factor = bit_depth > 8 ? 0xFFFF : 0xFF;
+
+ float h0x, h1x, sx;
+ float h0y, h1y, sy;
+ bicubic_fast_coeffs(fx, &h0x, &h1x, &sx);
+ bicubic_fast_coeffs(fy, &h0y, &h1y, &sy);
+
+#define PIX(x, y) tex2D<floatT>(src_tex, (x), (y))
+
+ floatT pix[4] = {
+ PIX(px + h0x, py + h0y),
+ PIX(px + h1x, py + h0y),
+ PIX(px + h0x, py + h1y),
+ PIX(px + h1x, py + h1y)
+ };
+
+#undef PIX
+
+ dst[yo * dst_pitch + xo] = from_floatN<T, floatT>(
+ lerp_scalar(
+ lerp_scalar(pix[3], pix[2], sx),
+ lerp_scalar(pix[1], pix[0], sx),
+ sy) * factor
+ );
+ }
+}
+
+extern "C" {
+
+#define BICUBIC_KERNEL(T) \
+ __global__ void Subsample_Bicubic_ ## T(cudaTextureObject_t src_tex, \
+ T *dst, \
+ int dst_width, int dst_height, int dst_pitch, \
+ int src_width, int src_height, \
+ int bit_depth) \
+ { \
+ Subsample_Bicubic<T>(src_tex, dst, \
+ dst_width, dst_height, dst_pitch, \
+ src_width, src_height, \
+ bit_depth); \
+ }
+
+BICUBIC_KERNEL(uchar)
+BICUBIC_KERNEL(uchar2)
+BICUBIC_KERNEL(uchar4)
+
+BICUBIC_KERNEL(ushort)
+BICUBIC_KERNEL(ushort2)
+BICUBIC_KERNEL(ushort4)
+
+}
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