update ffmpeg

zhangmeng

2020-01-19 6f9d46539bce25828e3229db6cd9c0dbae1f3e11

 csrc/thirdparty/ffmpeg/include/libavutil/hwcontext_cuda.h

@@ -41,6 +41,7 @@
 */
typedef struct AVCUDADeviceContext {
    CUcontext cuda_ctx;
    CUstream stream;
    AVCUDADeviceContextInternal *internal;
} AVCUDADeviceContext;