- nvidia.dali.fn.experimental.decoders.video(*inputs, **kwargs)¶
Decodes a video file from a memory buffer (e.g. provided by external source).
- The video streams can be in most of the container file formats. FFmpeg is used to parse video
containers and returns a batch of sequences of frames with shape (F, H, W, C) where F is the number of frames in a sequence and can differ for each sample.
- Supported backends
buffer (TensorList) – Data buffer with a loaded video file.
- Keyword Arguments:
affine (bool, optional, default = True) –
Applies only to the mixed backend type.
- If set to True, each thread in the internal thread pool will be tied to a specific CPU core.
Otherwise, the threads can be reassigned to any CPU core by the operating system.
bytes_per_sample_hint (int or list of int, optional, default = ) –
Output size hint, in bytes per sample.
If specified, the operator’s outputs residing in GPU or page-locked host memory will be preallocated to accommodate a batch of samples of this size.
preserve (bool, optional, default = False) – Prevents the operator from being removed from the graph even if its outputs are not used.
seed (int, optional, default = -1) –
If not provided, it will be populated based on the global seed of the pipeline.