From b1f1de084416768e8b4ba76b338029b974e518a2 Mon Sep 17 00:00:00 2001 From: Timo Rothenpieler Date: Mon, 22 Nov 2021 22:42:09 +0100 Subject: avutil/hwcontext_cuda: add option to use primary device context --- libavutil/hwcontext_cuda.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'libavutil/hwcontext_cuda.c') diff --git a/libavutil/hwcontext_cuda.c b/libavutil/hwcontext_cuda.c index 48f7ecbdd3..ed7eeecb8b 100644 --- a/libavutil/hwcontext_cuda.c +++ b/libavutil/hwcontext_cuda.c @@ -376,6 +376,22 @@ static int cuda_context_init(AVHWDeviceContext *device_ctx, int flags) { return 0; } +static int cuda_flags_from_opts(AVHWDeviceContext *device_ctx, + AVDictionary *opts, int *flags) +{ + AVDictionaryEntry *primary_ctx_opt = av_dict_get(opts, "primary_ctx", NULL, 0); + + if (primary_ctx_opt && strtol(primary_ctx_opt->value, NULL, 10)) { + av_log(device_ctx, AV_LOG_VERBOSE, "Using CUDA primary device context\n"); + *flags |= AV_CUDA_USE_PRIMARY_CONTEXT; + } else if (primary_ctx_opt) { + av_log(device_ctx, AV_LOG_VERBOSE, "Disabling use of CUDA primary device context\n"); + *flags &= ~AV_CUDA_USE_PRIMARY_CONTEXT; + } + + return 0; +} + static int cuda_device_create(AVHWDeviceContext *device_ctx, const char *device, AVDictionary *opts, int flags) @@ -384,6 +400,10 @@ static int cuda_device_create(AVHWDeviceContext *device_ctx, CudaFunctions *cu; int ret, device_idx = 0; + ret = cuda_flags_from_opts(device_ctx, opts, &flags); + if (ret < 0) + return ret; + if (device) device_idx = strtol(device, NULL, 0); @@ -419,6 +439,10 @@ static int cuda_device_derive(AVHWDeviceContext *device_ctx, const char *src_uuid = NULL; int ret, i, device_count; + ret = cuda_flags_from_opts(device_ctx, opts, &flags); + if (ret < 0) + return ret; + #if CONFIG_VULKAN VkPhysicalDeviceIDProperties vk_idp = { .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES, -- cgit v1.2.3