file_list - the parameters of ops.FileReader

[zhengge]

| - file_list : string
| Path to the file with a list of pairs file label
| (leave empty to traverse the file_root directory to obtain files and labels) (default value: ``)

self.input = ops.FileReader(file_root='images/kitten', file_list='file_list.txt') is wrong.
The 'file_list.txt' is

cat_9.jpg kitten
cat_1.jpg kitten

RuntimeError: [XXXXX/DALI/dali/pipeline/operators/reader/loader/file_loader.h:104] Assert on "Size() > 0" failed: No files found.
Could you give me a example of file_list?
Thanks!

[JanuszL]

Hi,
file_list expects following format:
file_name_N[string] label_M[int]
Please try:
cat_9.jpg 0
cat_1.jpg 0
We will add more sanity check logic to the data loader and extend documentation as well.

[zhengge]

@JanuszL
Thanks.

[austinmw]

Hi @JanuszL , I'm trying to use a file list with subdirectories that represent different videos, for example:

11-EO.mp4_0/11-EO.mp4_0-001.jpg
11-EO.mp4_0/11-EO.mp4_0-002.jpg
11-EO.mp4_0/11-EO.mp4_0-003.jpg
12-EO.mp4_0/12-EO.mp4_0-001.jpg
12-EO.mp4_0/12-EO.mp4_0-002.jpg
12-EO.mp4_0/12-EO.mp4_0-003.jpg

However, it seems the file path that is created ends up cutting off the beginning digits:

File mapping failed: /home/user/project/images/-EO.mp4_0/11-EO.mp4_0-001.jpg

[JanuszL]

@austinmw - I'm sorry but I cannot reproduce your bug. Can you provide a simple, self-contained repro we could run on our side?
Also please check how it works with the latest DALI release as well as the latest nightly build.