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train slowonly_omnisource_pretrained_r101_8x8x1_20e_ava_rgb on AVA2.1

See original GitHub issue

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Describe the bug

I processed the AVA using the processing script of the dataset, and as a result, no relevant pictures were found during the training process. After my inspection, I found that the frame rate of most of the videos in the data set is not 30FPS, but the data is processed according to 30FPS, resulting in less than 27000 pictures generated per video, so no relevant pictures will be found. How to solve this problem please?

Traceback (most recent call last): File “/data1/Hatcher/model/Action_Recognition/mmaction2/tools/train.py”, line 224, in <module> main() File “/data1/Hatcher/model/Action_Recognition/mmaction2/tools/train.py”, line 212, in main center_index: 16801,FPS:30 train_model( File “/data1/Hatcher/model/Action_Recognition/mmaction2/mmaction/apis/train.py”, line 232, in train_model timestamp:1460,timestamp_start:900,fps:30 start:16769,end:16833,center_index:16801 runner.run(data_loaders, cfg.workflow, cfg.total_epochs, **runner_kwargs) File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/mmcv/runner/epoch_based_runner.py”, line 127, in run i:0,frame_idx:16768 epoch_runner(data_loaders[i], **kwargs) File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/mmcv/runner/epoch_based_runner.py”, line 47, in train for i, data_batch in enumerate(self.data_loader): File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/torch/utils/data/dataloader.py”, line 517, in next data = self._next_data() File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/torch/utils/data/dataloader.py”, line 1199, in _next_data return self._process_data(data) File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/torch/utils/data/dataloader.py”, line 1225, in _process_data data.reraise() File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/torch/_utils.py”, line 429, in reraise raise self.exc_type(msg) FileNotFoundError: Caught FileNotFoundError in DataLoader worker process 0. Original Traceback (most recent call last): File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/torch/utils/data/_utils/worker.py”, line 202, in _worker_loop data = fetcher.fetch(index) File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py”, line 44, in fetch data = [self.dataset[idx] for idx in possibly_batched_index] File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py”, line 44, in <listcomp> data = [self.dataset[idx] for idx in possibly_batched_index] File “/data1/Hatcher/model/Action_Recognition/mmaction2/mmaction/datasets/base.py”, line 289, in getitem return self.prepare_train_frames(idx) File “/data1/Hatcher/model/Action_Recognition/mmaction2/mmaction/datasets/ava_dataset.py”, line 312, in prepare_train_frames return self.pipeline(results) File “/data1/Hatcher/model/Action_Recognition/mmaction2/mmaction/datasets/pipelines/compose.py”, line 50, in call data = t(data) File “/data1/Hatcher/model/Action_Recognition/mmaction2/mmaction/datasets/pipelines/loading.py”, line 1307, in call img_bytes = self.file_client.get(filepath) File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/mmcv/fileio/file_client.py”, line 992, in get return self.client.get(filepath) File “/data1/Hatcher/anaconda3/envs/open-mmlab3/lib/python3.8/site-packages/mmcv/fileio/file_client.py”, line 517, in get with open(filepath, ‘rb’) as f: FileNotFoundError: [Errno 2] No such file or directory: ‘/data1/Hatcher/model/Action_Recognition/mmaction2/data/ava/rawframes/7g37N3eoQ9s/img_24539.jpg’

Reproduction

What command or script did you run? python tools/train.py configs/detection/ava/slowonly_omnisource_pretrained_r101_8x8x1_20e_ava_rgb.py

A placeholder for the command.

python tools/train.py configs/detection/ava/slowonly_omnisource_pretrained_r101_8x8x1_20e_ava_rgb.py 2. Did you make any modifications on the code or config? Did you understand what you have modified? 3. no 4. What dataset did you use? AVA 2.1 Environment

Please run PYTHONPATH=${PWD}:$PYTHONPATH python mmaction/utils/collect_env.py to collect necessary environment information and paste it here.
You may add addition that may be helpful for locating the problem, such as
- How you installed PyTorch [e.g., pip, conda, source]
- Other environment variables that may be related (such as $PATH, $LD_LIBRARY_PATH, $PYTHONPATH, etc.)

Error traceback

If applicable, paste the error traceback here.

A placeholder for traceback.

Bug fix

If you have already identified the reason, you can provide the information here. If you are willing to create a PR to fix it, please also leave a comment here and that would be much appreciated!