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authorTimo Rothenpieler <timo@rothenpieler.org>2021-06-24 01:53:10 +0200
committerTimo Rothenpieler <timo@rothenpieler.org>2021-06-25 01:44:30 +0200
commit62dc5df941f5e196164c151691e4274195523e95 (patch)
treef077cbcdea587e4246c4aa1ce7331bd1f3cfd000 /libavfilter/vf_scale_cuda.c
parentb0e2e938c31f0dc46d905cb2ea7e904645ca0c19 (diff)
avfilter/scale_cuda: add support for pixel format conversion
Diffstat (limited to 'libavfilter/vf_scale_cuda.c')
-rw-r--r--libavfilter/vf_scale_cuda.c351
1 files changed, 165 insertions, 186 deletions
diff --git a/libavfilter/vf_scale_cuda.c b/libavfilter/vf_scale_cuda.c
index a3da4dc0bc..f3ea01634b 100644
--- a/libavfilter/vf_scale_cuda.c
+++ b/libavfilter/vf_scale_cuda.c
@@ -75,8 +75,11 @@ typedef struct CUDAScaleContext {
AVCUDADeviceContext *hwctx;
- enum AVPixelFormat in_fmt;
- enum AVPixelFormat out_fmt;
+ enum AVPixelFormat in_fmt, out_fmt;
+ const AVPixFmtDescriptor *in_desc, *out_desc;
+ int in_planes, out_planes;
+ int in_plane_depths[4];
+ int in_plane_channels[4];
AVBufferRef *frames_ctx;
AVFrame *frame;
@@ -97,18 +100,10 @@ typedef struct CUDAScaleContext {
CUcontext cu_ctx;
CUmodule cu_module;
- CUfunction cu_func_uchar;
- CUfunction cu_func_uchar2;
- CUfunction cu_func_uchar4;
- CUfunction cu_func_ushort;
- CUfunction cu_func_ushort2;
- CUfunction cu_func_ushort4;
+ CUfunction cu_func;
+ CUfunction cu_func_uv;
CUstream cu_stream;
- CUdeviceptr srcBuffer;
- CUdeviceptr dstBuffer;
- int tex_alignment;
-
int interp_algo;
int interp_use_linear;
int interp_as_integer;
@@ -120,7 +115,6 @@ static av_cold int cudascale_init(AVFilterContext *ctx)
{
CUDAScaleContext *s = ctx->priv;
- s->format = AV_PIX_FMT_NONE;
s->frame = av_frame_alloc();
if (!s->frame)
return AVERROR(ENOMEM);
@@ -210,6 +204,32 @@ static int format_is_supported(enum AVPixelFormat fmt)
return 0;
}
+static av_cold void set_format_info(AVFilterContext *ctx, enum AVPixelFormat in_format, enum AVPixelFormat out_format)
+{
+ CUDAScaleContext *s = ctx->priv;
+ int i, p, d;
+
+ s->in_fmt = in_format;
+ s->out_fmt = out_format;
+
+ s->in_desc = av_pix_fmt_desc_get(s->in_fmt);
+ s->out_desc = av_pix_fmt_desc_get(s->out_fmt);
+ s->in_planes = av_pix_fmt_count_planes(s->in_fmt);
+ s->out_planes = av_pix_fmt_count_planes(s->out_fmt);
+
+ // find maximum step of each component of each plane
+ // For our subset of formats, this should accurately tell us how many channels CUDA needs
+ // i.e. 1 for Y plane, 2 for UV plane of NV12, 4 for single plane of RGB0 formats
+
+ for (i = 0; i < s->in_desc->nb_components; i++) {
+ d = (s->in_desc->comp[i].depth + 7) / 8;
+ p = s->in_desc->comp[i].plane;
+ s->in_plane_channels[p] = FFMAX(s->in_plane_channels[p], s->in_desc->comp[i].step / d);
+
+ s->in_plane_depths[p] = s->in_desc->comp[i].depth;
+ }
+}
+
static av_cold int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height,
int out_width, int out_height)
{
@@ -241,8 +261,7 @@ static av_cold int init_processing_chain(AVFilterContext *ctx, int in_width, int
return AVERROR(ENOSYS);
}
- s->in_fmt = in_format;
- s->out_fmt = out_format;
+ set_format_info(ctx, in_format, out_format);
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);
@@ -254,6 +273,10 @@ static av_cold int init_processing_chain(AVFilterContext *ctx, int in_width, int
ret = init_hwframe_ctx(s, in_frames_ctx->device_ref, out_width, out_height);
if (ret < 0)
return ret;
+
+ if (in_width == out_width && in_height == out_height &&
+ in_format == out_format && s->interp_algo == INTERP_ALGO_DEFAULT)
+ s->interp_algo = INTERP_ALGO_NEAREST;
}
ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->frames_ctx);
@@ -263,19 +286,17 @@ static av_cold int init_processing_chain(AVFilterContext *ctx, int in_width, int
return 0;
}
-static av_cold int cudascale_config_props(AVFilterLink *outlink)
+static av_cold int cudascale_load_functions(AVFilterContext *ctx)
{
- AVFilterContext *ctx = outlink->src;
- AVFilterLink *inlink = outlink->src->inputs[0];
- CUDAScaleContext *s = ctx->priv;
- AVHWFramesContext *frames_ctx = (AVHWFramesContext*)inlink->hw_frames_ctx->data;
- 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;
+ CUDAScaleContext *s = ctx->priv;
+ CUcontext dummy, cuda_ctx = s->hwctx->cuda_ctx;
+ CudaFunctions *cu = s->hwctx->internal->cuda_dl;
+ char buf[128];
int ret;
+ const char *in_fmt_name = av_get_pix_fmt_name(s->in_fmt);
+ const char *out_fmt_name = av_get_pix_fmt_name(s->out_fmt);
+
const char *function_infix = "";
extern const unsigned char ff_vf_scale_cuda_ptx_data[];
@@ -283,23 +304,23 @@ static av_cold int cudascale_config_props(AVFilterLink *outlink)
switch(s->interp_algo) {
case INTERP_ALGO_NEAREST:
- function_infix = "_Nearest";
+ function_infix = "Nearest";
s->interp_use_linear = 0;
s->interp_as_integer = 1;
break;
case INTERP_ALGO_BILINEAR:
- function_infix = "_Bilinear";
+ function_infix = "Bilinear";
s->interp_use_linear = 1;
s->interp_as_integer = 1;
break;
case INTERP_ALGO_DEFAULT:
case INTERP_ALGO_BICUBIC:
- function_infix = "_Bicubic";
+ function_infix = "Bicubic";
s->interp_use_linear = 0;
s->interp_as_integer = 0;
break;
case INTERP_ALGO_LANCZOS:
- function_infix = "_Lanczos";
+ function_infix = "Lanczos";
s->interp_use_linear = 0;
s->interp_as_integer = 0;
break;
@@ -308,50 +329,46 @@ static av_cold int cudascale_config_props(AVFilterLink *outlink)
return AVERROR_BUG;
}
- s->hwctx = device_hwctx;
- s->cu_stream = s->hwctx->stream;
-
ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_ctx));
if (ret < 0)
- goto fail;
+ return ret;
- ret = ff_cuda_load_module(ctx, device_hwctx, &s->cu_module,
+ ret = ff_cuda_load_module(ctx, s->hwctx, &s->cu_module,
ff_vf_scale_cuda_ptx_data, ff_vf_scale_cuda_ptx_len);
if (ret < 0)
goto fail;
- 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;
-
- 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;
-
- snprintf(buf, sizeof(buf), "Subsample%s_uchar4", function_infix);
- CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uchar4, s->cu_module, buf));
- if (ret < 0)
+ snprintf(buf, sizeof(buf), "Subsample_%s_%s_%s", function_infix, in_fmt_name, out_fmt_name);
+ ret = CHECK_CU(cu->cuModuleGetFunction(&s->cu_func, s->cu_module, buf));
+ if (ret < 0) {
+ av_log(ctx, AV_LOG_FATAL, "Unsupported conversion: %s -> %s\n", in_fmt_name, out_fmt_name);
+ ret = AVERROR(ENOSYS);
goto fail;
+ }
- snprintf(buf, sizeof(buf), "Subsample%s_ushort", function_infix);
- CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_ushort, s->cu_module, buf));
+ snprintf(buf, sizeof(buf), "Subsample_%s_%s_%s_uv", function_infix, in_fmt_name, out_fmt_name);
+ ret = CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uv, s->cu_module, buf));
if (ret < 0)
goto fail;
- 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;
+fail:
+ CHECK_CU(cu->cuCtxPopCurrent(&dummy));
- 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;
+ return ret;
+}
+static av_cold int cudascale_config_props(AVFilterLink *outlink)
+{
+ AVFilterContext *ctx = outlink->src;
+ AVFilterLink *inlink = outlink->src->inputs[0];
+ CUDAScaleContext *s = ctx->priv;
+ AVHWFramesContext *frames_ctx = (AVHWFramesContext*)inlink->hw_frames_ctx->data;
+ AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
+ int w, h;
+ int ret;
- CHECK_CU(cu->cuCtxPopCurrent(&dummy));
+ s->hwctx = device_hwctx;
+ s->cu_stream = s->hwctx->stream;
if ((ret = ff_scale_eval_dimensions(s,
s->w_expr, s->h_expr,
@@ -373,9 +390,6 @@ static av_cold int cudascale_config_props(AVFilterLink *outlink)
if (ret < 0)
return ret;
- 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,
outlink->w*inlink->h},
@@ -384,154 +398,118 @@ static av_cold int cudascale_config_props(AVFilterLink *outlink)
outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
}
+ av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d fmt:%s -> w:%d h:%d fmt:%s%s\n",
+ inlink->w, inlink->h, av_get_pix_fmt_name(s->in_fmt),
+ outlink->w, outlink->h, av_get_pix_fmt_name(s->out_fmt),
+ s->passthrough ? " (passthrough)" : "");
+
+ ret = cudascale_load_functions(ctx);
+ if (ret < 0)
+ return ret;
+
return 0;
fail:
return ret;
}
-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 bit_depth)
+static int call_resize_kernel(AVFilterContext *ctx, CUfunction func,
+ CUtexObject src_tex[4], int src_width, int src_height,
+ AVFrame *out_frame, int dst_width, int dst_height, int dst_pitch)
{
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, &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 = s->interp_as_integer ? CU_TRSF_READ_AS_INTEGER : 0,
+ CUdeviceptr dst_devptr[4] = {
+ (CUdeviceptr)out_frame->data[0], (CUdeviceptr)out_frame->data[1],
+ (CUdeviceptr)out_frame->data[2], (CUdeviceptr)out_frame->data[3]
};
- CUDA_RESOURCE_DESC res_desc = {
- .resType = CU_RESOURCE_TYPE_PITCH2D,
- .res.pitch2D.format = pixel_size == 1 ?
- CU_AD_FORMAT_UNSIGNED_INT8 :
- CU_AD_FORMAT_UNSIGNED_INT16,
- .res.pitch2D.numChannels = channels,
- .res.pitch2D.width = src_width,
- .res.pitch2D.height = src_height,
- .res.pitch2D.pitchInBytes = src_pitch,
- .res.pitch2D.devPtr = (CUdeviceptr)src_dptr,
+ void *args_uchar[] = {
+ &src_tex[0], &src_tex[1], &src_tex[2], &src_tex[3],
+ &dst_devptr[0], &dst_devptr[1], &dst_devptr[2], &dst_devptr[3],
+ &dst_width, &dst_height, &dst_pitch,
+ &src_width, &src_height, &s->param
};
- // 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;
-
- ret = CHECK_CU(cu->cuLaunchKernel(func,
- DIV_UP(dst_width, BLOCKX), DIV_UP(dst_height, BLOCKY), 1,
- BLOCKX, BLOCKY, 1, 0, s->cu_stream, args_uchar, NULL));
-
-exit:
- if (tex)
- CHECK_CU(cu->cuTexObjectDestroy(tex));
-
- return ret;
+ return CHECK_CU(cu->cuLaunchKernel(func,
+ DIV_UP(dst_width, BLOCKX), DIV_UP(dst_height, BLOCKY), 1,
+ BLOCKX, BLOCKY, 1, 0, s->cu_stream, args_uchar, NULL));
}
static int scalecuda_resize(AVFilterContext *ctx,
AVFrame *out, AVFrame *in)
{
- AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data;
CUDAScaleContext *s = ctx->priv;
+ CudaFunctions *cu = s->hwctx->internal->cuda_dl;
+ CUcontext dummy, cuda_ctx = s->hwctx->cuda_ctx;
+ int i, ret;
- switch (in_frames_ctx->sw_format) {
- case AV_PIX_FMT_YUV420P:
- 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, 8);
- call_resize_kernel(ctx, s->cu_func_uchar, 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],
- 1, 8);
- call_resize_kernel(ctx, s->cu_func_uchar, 1,
- 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:
- 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, 8);
- call_resize_kernel(ctx, s->cu_func_uchar, 1,
- 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[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],
- 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],
- 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],
- out->data[2], out->width, out->height, out->linesize[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, 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],
- 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],
- 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],
- 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],
- 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],
- 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;
+ CUtexObject tex[4] = { 0, 0, 0, 0 };
+
+ ret = CHECK_CU(cu->cuCtxPushCurrent(cuda_ctx));
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; i < s->in_planes; i++) {
+ CUDA_TEXTURE_DESC tex_desc = {
+ .filterMode = s->interp_use_linear ?
+ CU_TR_FILTER_MODE_LINEAR :
+ CU_TR_FILTER_MODE_POINT,
+ .flags = s->interp_as_integer ? CU_TRSF_READ_AS_INTEGER : 0,
+ };
+
+ CUDA_RESOURCE_DESC res_desc = {
+ .resType = CU_RESOURCE_TYPE_PITCH2D,
+ .res.pitch2D.format = s->in_plane_depths[i] <= 8 ?
+ CU_AD_FORMAT_UNSIGNED_INT8 :
+ CU_AD_FORMAT_UNSIGNED_INT16,
+ .res.pitch2D.numChannels = s->in_plane_channels[i],
+ .res.pitch2D.pitchInBytes = in->linesize[i],
+ .res.pitch2D.devPtr = (CUdeviceptr)in->data[i],
+ };
+
+ if (i == 1 || i == 2) {
+ res_desc.res.pitch2D.width = AV_CEIL_RSHIFT(in->width, s->in_desc->log2_chroma_w);
+ res_desc.res.pitch2D.height = AV_CEIL_RSHIFT(in->height, s->in_desc->log2_chroma_h);
+ } else {
+ res_desc.res.pitch2D.width = in->width;
+ res_desc.res.pitch2D.height = in->height;
+ }
+
+ ret = CHECK_CU(cu->cuTexObjectCreate(&tex[i], &res_desc, &tex_desc, NULL));
+ if (ret < 0)
+ goto exit;
}
- return 0;
+ // scale primary plane(s). Usually Y (and A), or single plane of RGB frames.
+ ret = call_resize_kernel(ctx, s->cu_func,
+ tex, in->width, in->height,
+ out, out->width, out->height, out->linesize[0]);
+ if (ret < 0)
+ goto exit;
+
+ if (s->out_planes > 1) {
+ // scale UV plane. Scale function sets both U and V plane, or singular interleaved plane.
+ ret = call_resize_kernel(ctx, s->cu_func_uv, tex,
+ AV_CEIL_RSHIFT(in->width, s->in_desc->log2_chroma_w),
+ AV_CEIL_RSHIFT(in->height, s->in_desc->log2_chroma_h),
+ out,
+ AV_CEIL_RSHIFT(out->width, s->out_desc->log2_chroma_w),
+ AV_CEIL_RSHIFT(out->height, s->out_desc->log2_chroma_h),
+ out->linesize[1]);
+ if (ret < 0)
+ goto exit;
+ }
+
+exit:
+ for (i = 0; i < s->in_planes; i++)
+ if (tex[i])
+ CHECK_CU(cu->cuTexObjectDestroy(tex[i]));
+
+ CHECK_CU(cu->cuCtxPopCurrent(&dummy));
+
+ return ret;
}
static int cudascale_scale(AVFilterContext *ctx, AVFrame *out, AVFrame *in)
@@ -625,6 +603,7 @@ static const AVOption options[] = {
{ "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" },
+ { "format", "Output video pixel format", OFFSET(format), AV_OPT_TYPE_PIXEL_FMT, { .i64 = AV_PIX_FMT_NONE }, INT_MIN, INT_MAX, .flags=FLAGS },
{ "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" },