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RSS Feed for Wolfram Community showing any discussions in tag Import and Export sorted by activePossible Bug: Memory leakage when exporting “.mov” files
https://community.wolfram.com/groups/-/m/t/1595197
I have posted this problem a week ago on [Stack Exchange][1], and it seems like a system dependent bug or something. I have reported this to Wolfram Support but I get no response, so I think maybe I should post the problem here. Below is the description:
I am using Mathematica 11.3 with Windows 10.
When calling `Export` to export a List of Images as a QuickTime movie, the memory used by Mathematica 11.3 increases but it is not released after the evaluation. The code below is a simple example:
$HistoryLength = 0;
frame = Rasterize[Plot[x, {x, 1, 2}], RasterSize -> 1000, ImageSize -> {960, 720}];
frame = Table[frame, {i, 100}];
Export["D:\\example.mov", frame, "FrameRate" -> 100];
After runing this Cell, open Task Manager to check how much memory Mathematica is using. On my PC, it shows that Mathematica is using 769.0MB memory. Then run the Cell below:
Export["D:\\example.mov", frame, "FrameRate" -> 100];
MemoryInUse[]/1024.^2
Now Task Manager shows that Mathematica is using 1055.4MB memory, while Mathematica 11.3 shows that the memory in use in MB is:
> 91.6286
If you run the second Cell for more several times, the number in Task Manager keeps increaing but the number in Mathematica does not change obviously.
This problem is forcing me to restart the kernal everytime i export a lots of images as a QuickTime video.
[1]: https://mathematica.stackexchange.com/questions/189263/memory-leakage-when-exporting-mov-filesTaiyang Zhang2019-01-20T01:02:49ZImport large CDF files?
https://community.wolfram.com/groups/-/m/t/1593295
I'm trying to consolidate 200 files, 32 MB each unzipped which is about 6.5 GB of highly compressed data into one .CDF file.
Would loading this in Mathematica be an issue?T P2019-01-17T04:40:34Z[✓] Plot data imported in TSV format?
https://community.wolfram.com/groups/-/m/t/1594211
I currently have data in this format of an x value and 5 sets of y values that I am importing into mathematica as data sets. I have been trying to find a way to graph data imported to mathematica in this format, but I haven't found any success. The data is in CSV format in a .dat file. Thank you!
![Example photo of data format][1]
[1]: https://community.wolfram.com//c/portal/getImageAttachment?filename=ScreenShot2019-01-17at9.15.47PM.png&userId=1482346Aaron Fultineer2019-01-18T04:24:38Z