cannot open video_path stream
dingli-dean opened this issue · comments
cannot open video_path stream:/home/liding/project/temporal_action_detection/mmaction2/data/thumos14/videos/val/video_validation_0000033.mp4 cannot open video_path stream:/home/liding/project/temporal_action_detection/mmaction2/data/thumos14/videos/val/video_validation_0000592.mp4 cannot open video_path stream:/home/liding/project/temporal_action_detection/mmaction2/data/thumos14/videos/val/video_validation_0000230.mp4 cannot open video_path stream:/home/liding/project/temporal_action_detection/mmaction2/data/thumos14/videos/val/video_validation_0000395.mp4 cannot open video_path stream:/home/liding/project/temporal_action_detection/mmaction2/data/thumos14/videos/val/video_validation_0000238.mp4
Thanks for your great work. When running denseflow, I came across a bug like this, which results in error of openning video stream. Could you help me out?
Thanks again.
Does the file exist? What's the result of
ls -al /home/liding/project/temporal_action_detection/mmaction2/data/thumos14/videos/val/video_validation_0000033.mp4
and
ffprobe -i /home/liding/project/temporal_action_detection/mmaction2/data/thumos14/videos/val/video_validation_0000033.mp4?
I meet the same problem when using docker.
ls -al xxx shows:
-rwxrwxrwx 1 root root 389991 Feb 10 16:31 ../../../../data/kinetics400/videos_train/balloon_blowing/maymQ_gxL7w_000102_000112.mp4
and ffprobe -i xxx shows:
ffprobe version 3.4.8-0ubuntu0.2 Copyright (c) 2007-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../../../../data/kinetics400/videos_train/balloon_blowing/maymQ_gxL7w_000102_000112.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.41.100
Duration: 00:00:06.96, start: 0.000000, bitrate: 448 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 454x256, 315 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
The video looks normal from the output of ffprobe. Could you pls attach this video for debugging purpose?
hello, same problem when reading video. No matter build from your setup repo or from https://hub.docker.com/r/congee524/mmaction2
The video looks normal from the output of ffprobe. Could you pls attach this video for debugging purpose?
I guess the most suspicious reason is the data itself. So pls attach the problematic video, otherwise it is impossible to debug :)
@innerlee it is a very normal video, like demo.mp4 in mmaction2/demo/demo.mp4
I reproduce the problem in the docker image provided by https://hub.docker.com/r/congee524/mmaction2.
It is very strange like the pic below so I wonder is it the problem with opencv. Thx
Let me check
I am having the same issue. The video seems normal from ffprobe. And can be used for other tasks such as extracting frames and audios.
I solved this issue by recompiling and installing opencv
@protossw512 hi, what do you mean by recompiling and installing opencv ? I tried with zzopencv.sh but still have the issue, can you tell me in more detail, thx!
Please post the full compilation log of denseflow. It might used the wrong opencv lib
@pandababyer You probably want to check which opencv you are using if you have multiple installations on your system.
The log looks correct
Problem solved. Recompiling and installing opencv with ffmpeg supported, the original setup shell may install opencv without ffmpeg because there are some dependencies uninstalled ,thx :)
Great to hear that. Compilation are always troublesome. If I got some time later on, I will make the installation compilation free :D
hello @innerlee , one more question: when I use the denseflow to extract rgb and flow frames, the rgb number is one more than x_flow and y_flow frames. It is very strange that using the extract_optical_flow shell from https://github.com/yjxiong/temporal-segment-networks.git get the result that rgb frame equal to flow frame number. Looking forward to your reply, thanks!
n rgb frames have (n-1) flows. The decision is because we support any steps (even negative) between to frames. Say if you set step=-2, then you get (n-2) flows.
Thanks for your quick reply and this is the same as I understand ! What I am not understand is why the original repo get the numbers equal :( Besides, the word in mmaction2 readme document below also let me misunderstanding that the rgb equal to flow
mismatch of frame counts
This is because using difference tools, such as ffmpeg/opencv, you might get different nubmer of total frame counts.
@pandababyer How did you recompile & install it with FFmpeg supported? zzopencv.sh indeed has -DWITH_FFMPEG=ON \ and I supposed that the other dependencies which you say might not be installed are covered here?
Moreover, I can see from cv2.getBuildInformation() that FFmpeg is activated.
But it's not working for me so could you please show me what else did you do? Thanks!
I made a dockerfile here https://github.com/open-mmlab/denseflow/tree/master/docker
@rlleshi hello, -DWITH_FFMPEG=ON is an input option. please check your install log if the ffmpeg support is really on like this :
In my previous installation, it always show ffmpeg is off. There are some dependencies like libfreetype6-dev , libfontconfig1-dev , freetype-dev and so on I install by apt-get but I am not sure which is really matters :(
I have same problem, and I find the reason is that the opencv verion provided in zzopencv.sh is too low(4.3.0), so downloading opencv 4.5.2 and recompiling opencv 4.5.2 and denseflow can solve this problem.
I have same problem, and I find the reason is that the opencv verion provided in zzopencv.sh is too low(4.3.0), so downloading opencv 4.5.2 and recompiling opencv 4.5.2 and denseflow can solve this problem.
Hi bimver,
I have tried to recompile opencv 4.5.2, but it doesn't work.
Hi everyone,
I have compiled opencv 4.5.2/4.3 many times, but I always encounter the below problem. So, how can I solve it? If you have any ideas, please tell me. Thanks:)
install libtiff?