使用mmaction2的RGB帧提取工具出现错误
LEM0NTE opened this issue · comments
不知道是否有人使用mmaction2的RGB帧提取工具。我下载了k400数据集后，成功解压并按照mmaction2的命名习惯重新命名了文件夹，然后提取RGB帧时却提示没有找到相应的视频文件。
是否有人可以给我提供一些帮助或者指出可能存在的问题（已经检查过视频文件夹，确定目标路径下有相应的.mp4视频文件）
你好！我建议先用基础的ffmpeg指令检查视频文件是否正常，比如：ffmpeg -i path_to_input_video.mp4 '%04d.jpg'，这可以确认问题来自mmaction2还是视频本身。如果视频本身损坏，欢迎回复。
(Translate just in case)
- The question is, failing to extract RGB frames with
mmaction2toolbox. - My suggestion is, first check frame extraction with basic ffmpeg command like
ffmpeg -i path_to_input_video.mp4 '%04d.jpg'to localize the issue -- the problem could come from mmaction2 or the broken video. If indeed some videos are broken, look forward to getting your reply.
您好，我用ffmpeg首先检查了train文件夹下的视频，确实给出了errorlog，例如如图所示
请问这种情况进一步应该怎样处理呢。
感谢您的答复！
看起来可能有少量视频文件损坏了。短期办法：忽略这些损坏的视频，照常使用K400，少量视频缺失不影响结果。长期办法：管理员会检查一下AWS里的这些文件，但需要一段时间。
(Translate just in case)
Short-term solution: keep using K400, ignoring these corrupted videos. Missing small number of videos have negligible effect on results.
Long-term solution: we could check these videos in AWS, but it takes a while.
To @kinetics-cvdf : It seems some K400 videos are corrupted, right? Are they reported elsewhere?
Right, seems like. Probably best is to simply remove them (unless someone has the original uncorrupted versions). Note that this repository will still have a lot more videos than if downloading from youtube.
看起来可能有少量视频文件损坏了。短期办法：忽略这些损坏的视频，照常使用K400，少量视频缺失不影响结果。长期办法：管理员会检查一下AWS里的这些文件，但需要一段时间。
(Translate just in case) Short-term solution: keep using K400, ignoring these corrupted videos. Missing small number of videos have negligible effect on results. Long-term solution: we could check these videos in AWS, but it takes a while.
To @kinetics-cvdf : It seems some K400 videos are corrupted, right? Are they reported elsewhere?
所以这样看来应该是mmaction那边的问题了，毕竟仍然有一部分视频是正常的，但是他们的工具提取到的帧是0个。感谢您的回复，我去那边的库提issue
Great!
@kinetics-cvdf I think this issue can be closed.
Thank you Tengda. Will do so.