* DEALINGS IN THE SOFTWARE.
*/
+#include <float.h>
#include <stdio.h>
#include <string.h>
#include "scale_eval.h"
#include "video.h"
+#include "vf_scale_cuda.h"
+
static const enum AVPixelFormat supported_formats[] = {
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_NV12,
AV_PIX_FMT_P010,
AV_PIX_FMT_P016,
AV_PIX_FMT_YUV444P16,
+ AV_PIX_FMT_0RGB32,
+ AV_PIX_FMT_0BGR32,
};
#define DIV_UP(a, b) ( ((a) + (b) - 1) / (b) )
-#define ALIGN_UP(a, b) (((a) + (b) - 1) & ~((b) - 1))
-#define NUM_BUFFERS 2
#define BLOCKX 32
#define BLOCKY 16
enum {
INTERP_ALGO_DEFAULT,
+ INTERP_ALGO_NEAREST,
INTERP_ALGO_BILINEAR,
INTERP_ALGO_BICUBIC,
+ INTERP_ALGO_LANCZOS,
INTERP_ALGO_COUNT
};
enum AVPixelFormat in_fmt;
enum AVPixelFormat out_fmt;
- struct {
- int width;
- int height;
- } planes_in[3], planes_out[3];
-
AVBufferRef *frames_ctx;
AVFrame *frame;
int interp_algo;
int interp_use_linear;
+ int interp_as_integer;
+
+ float param;
} CUDAScaleContext;
static av_cold int cudascale_init(AVFilterContext *ctx)
AV_PIX_FMT_CUDA, AV_PIX_FMT_NONE,
};
AVFilterFormats *pix_fmts = ff_make_format_list(pixel_formats);
+ if (!pix_fmts)
+ return AVERROR(ENOMEM);
return ff_set_common_formats(ctx, pix_fmts);
}
-static av_cold int init_stage(CUDAScaleContext *s, AVBufferRef *device_ctx)
+static av_cold int init_hwframe_ctx(CUDAScaleContext *s, AVBufferRef *device_ctx, int width, int height)
{
AVBufferRef *out_ref = NULL;
AVHWFramesContext *out_ctx;
- int in_sw, in_sh, out_sw, out_sh;
- int ret, i;
-
- av_pix_fmt_get_chroma_sub_sample(s->in_fmt, &in_sw, &in_sh);
- av_pix_fmt_get_chroma_sub_sample(s->out_fmt, &out_sw, &out_sh);
- if (!s->planes_out[0].width) {
- s->planes_out[0].width = s->planes_in[0].width;
- s->planes_out[0].height = s->planes_in[0].height;
- }
-
- for (i = 1; i < FF_ARRAY_ELEMS(s->planes_in); i++) {
- s->planes_in[i].width = s->planes_in[0].width >> in_sw;
- s->planes_in[i].height = s->planes_in[0].height >> in_sh;
- s->planes_out[i].width = s->planes_out[0].width >> out_sw;
- s->planes_out[i].height = s->planes_out[0].height >> out_sh;
- }
+ int ret;
out_ref = av_hwframe_ctx_alloc(device_ctx);
if (!out_ref)
out_ctx->format = AV_PIX_FMT_CUDA;
out_ctx->sw_format = s->out_fmt;
- out_ctx->width = FFALIGN(s->planes_out[0].width, 32);
- out_ctx->height = FFALIGN(s->planes_out[0].height, 32);
+ out_ctx->width = FFALIGN(width, 32);
+ out_ctx->height = FFALIGN(height, 32);
ret = av_hwframe_ctx_init(out_ref);
if (ret < 0)
if (ret < 0)
goto fail;
- s->frame->width = s->planes_out[0].width;
- s->frame->height = s->planes_out[0].height;
+ s->frame->width = width;
+ s->frame->height = height;
av_buffer_unref(&s->frames_ctx);
s->frames_ctx = out_ref;
return AVERROR(ENOSYS);
}
- if (in_width == out_width && in_height == out_height)
- s->passthrough = 1;
-
s->in_fmt = in_format;
s->out_fmt = out_format;
- s->planes_in[0].width = in_width;
- s->planes_in[0].height = in_height;
- s->planes_out[0].width = out_width;
- s->planes_out[0].height = out_height;
+ if (s->passthrough && in_width == out_width && in_height == out_height && in_format == out_format) {
+ s->frames_ctx = av_buffer_ref(ctx->inputs[0]->hw_frames_ctx);
+ if (!s->frames_ctx)
+ return AVERROR(ENOMEM);
+ } else {
+ s->passthrough = 0;
- ret = init_stage(s, in_frames_ctx->device_ref);
- if (ret < 0)
- return ret;
+ ret = init_hwframe_ctx(s, in_frames_ctx->device_ref, out_width, out_height);
+ if (ret < 0)
+ return ret;
+ }
ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->frames_ctx);
if (!ctx->outputs[0]->hw_frames_ctx)
extern char vf_scale_cuda_bicubic_ptx[];
switch(s->interp_algo) {
+ case INTERP_ALGO_NEAREST:
+ scaler_ptx = vf_scale_cuda_ptx;
+ function_infix = "_Nearest";
+ s->interp_use_linear = 0;
+ s->interp_as_integer = 1;
+ break;
case INTERP_ALGO_BILINEAR:
scaler_ptx = vf_scale_cuda_ptx;
function_infix = "_Bilinear";
s->interp_use_linear = 1;
+ s->interp_as_integer = 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;
+ s->interp_as_integer = 0;
+ break;
+ case INTERP_ALGO_LANCZOS:
+ scaler_ptx = vf_scale_cuda_bicubic_ptx;
+ function_infix = "_Lanczos";
+ s->interp_use_linear = 0;
+ s->interp_as_integer = 0;
break;
default:
av_log(ctx, AV_LOG_ERROR, "Unknown interpolation algorithm\n");
if (ret < 0)
return ret;
- av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d\n",
- inlink->w, inlink->h, outlink->w, outlink->h);
+ av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d%s\n",
+ inlink->w, inlink->h, outlink->w, outlink->h, s->passthrough ? " (passthrough)" : "");
if (inlink->sample_aspect_ratio.num) {
outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h*inlink->w,
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, &src_pitch, &bit_depth };
+ void *args_uchar[] = { &tex, &dst_devptr, &dst_width, &dst_height, &dst_pitch,
+ &src_width, &src_height, &bit_depth, &s->param };
int ret;
CUDA_TEXTURE_DESC tex_desc = {
.filterMode = s->interp_use_linear ?
CU_TR_FILTER_MODE_LINEAR :
CU_TR_FILTER_MODE_POINT,
- .flags = CU_TRSF_READ_AS_INTEGER,
+ .flags = s->interp_as_integer ? CU_TRSF_READ_AS_INTEGER : 0,
};
CUDA_RESOURCE_DESC res_desc = {
.res.pitch2D.numChannels = channels,
.res.pitch2D.width = src_width,
.res.pitch2D.height = src_height,
- .res.pitch2D.pitchInBytes = src_pitch * pixel_size,
+ .res.pitch2D.pitchInBytes = src_pitch,
.res.pitch2D.devPtr = (CUdeviceptr)src_dptr,
};
+ // Handling of channels is done via vector-types in cuda, so their size is implicitly part of the pitch
+ // Same for pixel_size, which is represented via datatypes on the cuda side of things.
+ dst_pitch /= channels * pixel_size;
+
ret = CHECK_CU(cu->cuTexObjectCreate(&tex, &res_desc, &tex_desc, NULL));
if (ret < 0)
goto exit;
out->data[0], out->width, out->height, out->linesize[0],
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,
+ in->data[1], in->width / 2, in->height / 2, in->linesize[1],
+ out->data[1], out->width / 2, out->height / 2, out->linesize[1],
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,
+ in->data[2], in->width / 2, in->height / 2, in->linesize[2],
+ out->data[2], out->width / 2, out->height / 2, out->linesize[2],
1, 8);
break;
case AV_PIX_FMT_YUV444P:
out->data[0], out->width, out->height, out->linesize[0],
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],
+ in->data[1], in->width, in->height, in->linesize[1],
+ out->data[1], out->width, out->height, out->linesize[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],
+ in->data[2], in->width, in->height, in->linesize[2],
+ out->data[2], out->width, out->height, out->linesize[2],
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,
+ in->data[0], in->width, in->height, in->linesize[0],
+ out->data[0], out->width, out->height, out->linesize[0],
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,
+ in->data[1], in->width, in->height, in->linesize[1],
+ out->data[1], out->width, out->height, out->linesize[1],
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,
+ in->data[2], in->width, in->height, in->linesize[2],
+ out->data[2], out->width, out->height, out->linesize[2],
2, 16);
break;
case AV_PIX_FMT_NV12:
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,
+ out->data[1], out->width / 2, out->height / 2, out->linesize[1],
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,
+ in->data[0], in->width, in->height, in->linesize[0],
+ out->data[0], out->width, out->height, out->linesize[0],
2, 10);
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,
+ 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, 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,
+ in->data[0], in->width, in->height, in->linesize[0],
+ out->data[0], out->width, out->height, out->linesize[0],
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,
+ 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, 16);
break;
+ case AV_PIX_FMT_0RGB32:
+ case AV_PIX_FMT_0BGR32:
+ call_resize_kernel(ctx, s->cu_func_uchar4, 4,
+ in->data[0], in->width, in->height, in->linesize[0],
+ out->data[0], out->width, out->height, out->linesize[0],
+ 1, 8);
+ break;
default:
return AVERROR_BUG;
}
static int cudascale_scale(AVFilterContext *ctx, AVFrame *out, AVFrame *in)
{
CUDAScaleContext *s = ctx->priv;
+ AVFilterLink *outlink = ctx->outputs[0];
AVFrame *src = in;
int ret;
av_frame_move_ref(out, s->frame);
av_frame_move_ref(s->frame, s->tmp_frame);
- s->frame->width = s->planes_out[0].width;
- s->frame->height = s->planes_out[0].height;
+ s->frame->width = outlink->w;
+ s->frame->height = outlink->h;
ret = av_frame_copy_props(out, in);
if (ret < 0)
CUcontext dummy;
int ret = 0;
+ if (s->passthrough)
+ return ff_filter_frame(outlink, in);
+
out = av_frame_alloc();
if (!out) {
ret = AVERROR(ENOMEM);
return ret;
}
+static AVFrame *cudascale_get_video_buffer(AVFilterLink *inlink, int w, int h)
+{
+ CUDAScaleContext *s = inlink->dst->priv;
+
+ return s->passthrough ?
+ ff_null_get_video_buffer (inlink, w, h) :
+ ff_default_get_video_buffer(inlink, w, h);
+}
+
#define OFFSET(x) offsetof(CUDAScaleContext, x)
#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
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 },
+ { "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" },
- { "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, "force_oar" },
- { "force_divisible_by", "enforce that the output resolution is divisible by a defined integer when force_original_aspect_ratio is used", OFFSET(force_divisible_by), AV_OPT_TYPE_INT, { .i64 = 1}, 1, 256, FLAGS },
+ { "nearest", "nearest neighbour", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_NEAREST }, 0, 0, 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" },
+ { "lanczos", "lanczos", 0, AV_OPT_TYPE_CONST, { .i64 = INTERP_ALGO_LANCZOS }, 0, 0, FLAGS, "interp_algo" },
+ { "passthrough", "Do not process frames at all if parameters match", OFFSET(passthrough), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
+ { "param", "Algorithm-Specific parameter", OFFSET(param), AV_OPT_TYPE_FLOAT, { .dbl = SCALE_CUDA_PARAM_DEFAULT }, -FLT_MAX, FLT_MAX, FLAGS },
+ { "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" },
+ { "increase", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, 0, 0, FLAGS, "force_oar" },
+ { "force_divisible_by", "enforce that the output resolution is divisible by a defined integer when force_original_aspect_ratio is used", OFFSET(force_divisible_by), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, 256, FLAGS },
{ NULL },
};
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = cudascale_filter_frame,
+ .get_video_buffer = cudascale_get_video_buffer,
},
{ NULL }
};
{ NULL }
};
-AVFilter ff_vf_scale_cuda = {
+const AVFilter ff_vf_scale_cuda = {
.name = "scale_cuda",
.description = NULL_IF_CONFIG_SMALL("GPU accelerated video resizer"),
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