static int cudascale_filter_frame(AVFilterLink *link, AVFrame *in)
{
AVFilterContext *ctx = link->dst;
CUDAScaleContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
AVHWFramesContext *frames_ctx = (AVHWFramesContext*)s->frames_ctx->data;
AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
AVFrame *out = NULL;
CUresult err;
CUcontext dummy;
int ret = 0;
out = av_frame_alloc();
if (!out) {
ret = AVERROR(ENOMEM);
goto fail;
}
err = cuCtxPushCurrent(device_hwctx->cuda_ctx);
if (err != CUDA_SUCCESS) {
ret = AVERROR_UNKNOWN;
goto fail;
}
ret = cudascale_scale(ctx, out, in);
cuCtxPopCurrent(&dummy);
if (ret < 0)
goto fail;
av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
(int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
(int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
INT_MAX);
av_frame_free(&in);
return ff_filter_frame(outlink, out);
fail:
av_frame_free(&in);
av_frame_free(&out);
return ret;
}
static int cudascale_filter_frame(AVFilterLink *link, AVFrame *in)
{
AVFilterContext *ctx = link->dst;
CUDAScaleContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
CudaFunctions *cu = s->hwctx->internal->cuda_dl;
AVFrame *out = NULL;
CUcontext dummy;
int ret = 0;
out = av_frame_alloc();
if (!out) {
ret = AVERROR(ENOMEM);
goto fail;
}
ret = CHECK_CU(cu->cuCtxPushCurrent(s->hwctx->cuda_ctx));
if (ret < 0)
goto fail;
ret = cudascale_scale(ctx, out, in);
CHECK_CU(cu->cuCtxPopCurrent(&dummy));
if (ret < 0)
goto fail;
av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
(int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
(int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
INT_MAX);
av_frame_free(&in);
return ff_filter_frame(outlink, out);
fail:
av_frame_free(&in);
av_frame_free(&out);
return ret;
}