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Opencv 3.1 compiled with FFMPEG, but won't open https urls
FFmpeg converting to flv but with 0 file sizeOpenCV Build Error: “Cannot open options file specified with @”ffmpeg & ffprobe & libfdk-aac on Ubuntu 14.10 serverHow to compile ffmpeg with https supportVLC won't play most of my file formatsMP3 encoding problems caused by gstreamer1.0 lamemp3enc not working (for me) in Ubuntu Xenial 16.04Building static ffmpeg libraries on amd64 where libc isn't compiled with -fPICRunning caffe gives error Check failed: error == cudaSuccess (30 vs. 0) unknown errorVideos application doesn't actually show video, just audiobuild opencv with ffmpeg support
I work on a 16.04 system, and have successfully installed opencv 3.1 with FFMPEG flags enabled. I double checked this was actually the case by cv2.getBuildInformation() and I got FFMPEG = YES.
I am trying to open a video that is hostel on a private server by my workplace (I am logged in to the VPN, in case thats a concern) and I can access this video over the browser. But videocapture with cv2 fails.
>>> cap = cv2.VideoCapture("https://xxx.mp4", cv2.CAP_ANY) #dummy url
>>> cap
<VideoCapture 0x7f63300fa4b0>
>>> cap.isOpened()
False
This is always the case for https urls. It seems to be able to work with local videos just fine.
I have tried a bunch of different thing: initially thought it was a gstreamer problem so I checked my plugins, had some gst-bad versions (ref: https://github.com/GStreamer/gst-plugins-ugly), removed those and replaced with good versions, no joy.
Also tried to explicitly tell videoCapture to use cv2.CAP_ANY and cv2.CAP_FFMPEG flags while reading the video, still no luck.
I disabled the Gstreamer flag while compiling opencv, but even with it set to ON, there was no difference in my problem.
I haven't been able to find a solution to this issue and have been looking and trying different things for days now! Any ideas?
video compiling ffmpeg opencv gstreamer
asked Mar 2 '18 at 0:42
stalagmite7stalagmite7
262
add a comment |
I work on a 16.04 system, and have successfully installed opencv 3.1 with FFMPEG flags enabled. I double checked this was actually the case by cv2.getBuildInformation() and I got FFMPEG = YES.
I am trying to open a video that is hostel on a private server by my workplace (I am logged in to the VPN, in case thats a concern) and I can access this video over the browser. But videocapture with cv2 fails.
>>> cap = cv2.VideoCapture("https://xxx.mp4", cv2.CAP_ANY) #dummy url
>>> cap
<VideoCapture 0x7f63300fa4b0>
>>> cap.isOpened()
False
This is always the case for https urls. It seems to be able to work with local videos just fine.
I have tried a bunch of different thing: initially thought it was a gstreamer problem so I checked my plugins, had some gst-bad versions (ref: https://github.com/GStreamer/gst-plugins-ugly), removed those and replaced with good versions, no joy.
Also tried to explicitly tell videoCapture to use cv2.CAP_ANY and cv2.CAP_FFMPEG flags while reading the video, still no luck.
I disabled the Gstreamer flag while compiling opencv, but even with it set to ON, there was no difference in my problem.
I haven't been able to find a solution to this issue and have been looking and trying different things for days now! Any ideas?
video compiling ffmpeg opencv gstreamer
asked Mar 2 '18 at 0:42
stalagmite7stalagmite7
262
Is it documented anywhere that it should work with a URI string? I only see mention of local files or video devices
– steeldriver
Mar 2 '18 at 0:58
Good point. But all my other colleagues at work are able to do this, so I can only assume that it is meant to work. I had been checking against their opencv builds to push mine towards working, which is what led me to the gstreamer and ffmpeg changes, but no luck there either.
– stalagmite7
Mar 2 '18 at 4:35
add a comment |
I work on a 16.04 system, and have successfully installed opencv 3.1 with FFMPEG flags enabled. I double checked this was actually the case by cv2.getBuildInformation() and I got FFMPEG = YES.
I am trying to open a video that is hostel on a private server by my workplace (I am logged in to the VPN, in case thats a concern) and I can access this video over the browser. But videocapture with cv2 fails.
>>> cap = cv2.VideoCapture("https://xxx.mp4", cv2.CAP_ANY) #dummy url
>>> cap
<VideoCapture 0x7f63300fa4b0>
>>> cap.isOpened()
False
This is always the case for https urls. It seems to be able to work with local videos just fine.
I have tried a bunch of different thing: initially thought it was a gstreamer problem so I checked my plugins, had some gst-bad versions (ref: https://github.com/GStreamer/gst-plugins-ugly), removed those and replaced with good versions, no joy.
Also tried to explicitly tell videoCapture to use cv2.CAP_ANY and cv2.CAP_FFMPEG flags while reading the video, still no luck.
I disabled the Gstreamer flag while compiling opencv, but even with it set to ON, there was no difference in my problem.
I haven't been able to find a solution to this issue and have been looking and trying different things for days now! Any ideas?
video compiling ffmpeg opencv gstreamer
asked Mar 2 '18 at 0:42
stalagmite7stalagmite7
262
I work on a 16.04 system, and have successfully installed opencv 3.1 with FFMPEG flags enabled. I double checked this was actually the case by cv2.getBuildInformation() and I got FFMPEG = YES.
I am trying to open a video that is hostel on a private server by my workplace (I am logged in to the VPN, in case thats a concern) and I can access this video over the browser. But videocapture with cv2 fails.
>>> cap = cv2.VideoCapture("https://xxx.mp4", cv2.CAP_ANY) #dummy url
>>> cap
<VideoCapture 0x7f63300fa4b0>
>>> cap.isOpened()
False
This is always the case for https urls. It seems to be able to work with local videos just fine.
I have tried a bunch of different thing: initially thought it was a gstreamer problem so I checked my plugins, had some gst-bad versions (ref: https://github.com/GStreamer/gst-plugins-ugly), removed those and replaced with good versions, no joy.
Also tried to explicitly tell videoCapture to use cv2.CAP_ANY and cv2.CAP_FFMPEG flags while reading the video, still no luck.
I disabled the Gstreamer flag while compiling opencv, but even with it set to ON, there was no difference in my problem.
I haven't been able to find a solution to this issue and have been looking and trying different things for days now! Any ideas?
video compiling ffmpeg opencv gstreamer
video compiling ffmpeg opencv gstreamer
asked Mar 2 '18 at 0:42
stalagmite7stalagmite7
262
asked Mar 2 '18 at 0:42
stalagmite7stalagmite7
262
asked Mar 2 '18 at 0:42
stalagmite7stalagmite7
262
asked Mar 2 '18 at 0:42
stalagmite7stalagmite7
262
asked Mar 2 '18 at 0:42
stalagmite7stalagmite7
262
262
Is it documented anywhere that it should work with a URI string? I only see mention of local files or video devices
– steeldriver
Mar 2 '18 at 0:58
Good point. But all my other colleagues at work are able to do this, so I can only assume that it is meant to work. I had been checking against their opencv builds to push mine towards working, which is what led me to the gstreamer and ffmpeg changes, but no luck there either.
– stalagmite7
Mar 2 '18 at 4:35
add a comment |
Is it documented anywhere that it should work with a URI string? I only see mention of local files or video devices
– steeldriver
Mar 2 '18 at 0:58
Good point. But all my other colleagues at work are able to do this, so I can only assume that it is meant to work. I had been checking against their opencv builds to push mine towards working, which is what led me to the gstreamer and ffmpeg changes, but no luck there either.
– stalagmite7
Mar 2 '18 at 4:35
Is it documented anywhere that it should work with a URI string? I only see mention of local files or video devices
– steeldriver
Mar 2 '18 at 0:58
Is it documented anywhere that it should work with a URI string? I only see mention of local files or video devices
– steeldriver
Mar 2 '18 at 0:58
Good point. But all my other colleagues at work are able to do this, so I can only assume that it is meant to work. I had been checking against their opencv builds to push mine towards working, which is what led me to the gstreamer and ffmpeg changes, but no luck there either.
– stalagmite7
Mar 2 '18 at 4:35
Good point. But all my other colleagues at work are able to do this, so I can only assume that it is meant to work. I had been checking against their opencv builds to push mine towards working, which is what led me to the gstreamer and ffmpeg changes, but no luck there either.
– stalagmite7
Mar 2 '18 at 4:35
add a comment |
2 Answers
2
active
oldest
votes
Eventually, I gave up on trying to install and reinstall opencv3.1, and switched to opencv 3.4.1. With that, and my current (as original question post) configuration for gstreamer and ffmpeg, I only had to create symlinks for libopencv_core.so.2.4 that gstreamer was looking for, and the rest of it worked fine.
Hope this helps someone!
I haven't managed to figure out what exactly was the issue with opencv3.1 (like I mentioned, that is the configuration my other colleagues have, and the functionality works just fine for them) but this is what I ended up doing after spending days on the issue.
answered Mar 2 '18 at 19:31
stalagmite7stalagmite7
262
add a comment |
So using gstreamer you were able to read and show video urls using cv2.VideoCapture() is that right ?
answered 25 mins ago
Purav ZumkhawalaPurav Zumkhawala
1
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Eventually, I gave up on trying to install and reinstall opencv3.1, and switched to opencv 3.4.1. With that, and my current (as original question post) configuration for gstreamer and ffmpeg, I only had to create symlinks for libopencv_core.so.2.4 that gstreamer was looking for, and the rest of it worked fine.
Hope this helps someone!
I haven't managed to figure out what exactly was the issue with opencv3.1 (like I mentioned, that is the configuration my other colleagues have, and the functionality works just fine for them) but this is what I ended up doing after spending days on the issue.
answered Mar 2 '18 at 19:31
stalagmite7stalagmite7
262
add a comment |
Eventually, I gave up on trying to install and reinstall opencv3.1, and switched to opencv 3.4.1. With that, and my current (as original question post) configuration for gstreamer and ffmpeg, I only had to create symlinks for libopencv_core.so.2.4 that gstreamer was looking for, and the rest of it worked fine.
Hope this helps someone!
I haven't managed to figure out what exactly was the issue with opencv3.1 (like I mentioned, that is the configuration my other colleagues have, and the functionality works just fine for them) but this is what I ended up doing after spending days on the issue.
answered Mar 2 '18 at 19:31
stalagmite7stalagmite7
262
add a comment |
Eventually, I gave up on trying to install and reinstall opencv3.1, and switched to opencv 3.4.1. With that, and my current (as original question post) configuration for gstreamer and ffmpeg, I only had to create symlinks for libopencv_core.so.2.4 that gstreamer was looking for, and the rest of it worked fine.
Hope this helps someone!
I haven't managed to figure out what exactly was the issue with opencv3.1 (like I mentioned, that is the configuration my other colleagues have, and the functionality works just fine for them) but this is what I ended up doing after spending days on the issue.
answered Mar 2 '18 at 19:31
stalagmite7stalagmite7
262
Eventually, I gave up on trying to install and reinstall opencv3.1, and switched to opencv 3.4.1. With that, and my current (as original question post) configuration for gstreamer and ffmpeg, I only had to create symlinks for libopencv_core.so.2.4 that gstreamer was looking for, and the rest of it worked fine.
Hope this helps someone!
I haven't managed to figure out what exactly was the issue with opencv3.1 (like I mentioned, that is the configuration my other colleagues have, and the functionality works just fine for them) but this is what I ended up doing after spending days on the issue.
answered Mar 2 '18 at 19:31
stalagmite7stalagmite7
262
answered Mar 2 '18 at 19:31
stalagmite7stalagmite7
262
answered Mar 2 '18 at 19:31
stalagmite7stalagmite7
262
answered Mar 2 '18 at 19:31
stalagmite7stalagmite7
262
262
add a comment |
add a comment |
So using gstreamer you were able to read and show video urls using cv2.VideoCapture() is that right ?
answered 25 mins ago
Purav ZumkhawalaPurav Zumkhawala
1
add a comment |
So using gstreamer you were able to read and show video urls using cv2.VideoCapture() is that right ?
answered 25 mins ago
Purav ZumkhawalaPurav Zumkhawala
1
add a comment |
So using gstreamer you were able to read and show video urls using cv2.VideoCapture() is that right ?
answered 25 mins ago
Purav ZumkhawalaPurav Zumkhawala
1
So using gstreamer you were able to read and show video urls using cv2.VideoCapture() is that right ?
answered 25 mins ago
Purav ZumkhawalaPurav Zumkhawala
1
answered 25 mins ago
Purav ZumkhawalaPurav Zumkhawala
1
answered 25 mins ago
Purav ZumkhawalaPurav Zumkhawala
1
answered 25 mins ago
Purav ZumkhawalaPurav Zumkhawala
1
1
add a comment |
add a comment |
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Is it documented anywhere that it should work with a URI string? I only see mention of local files or video devices
– steeldriver
Mar 2 '18 at 0:58
Good point. But all my other colleagues at work are able to do this, so I can only assume that it is meant to work. I had been checking against their opencv builds to push mine towards working, which is what led me to the gstreamer and ffmpeg changes, but no luck there either.
– stalagmite7
Mar 2 '18 at 4:35