seek

问题 I don't have strong Python & programming background, and currently I am stuck on plotting data/values which I acquired from csv stream. Currently, this is what I have to just print the values streamed from .csv (real-time data from sensor), which I acquired from here: def follow(thefile): thefile.seek(0,2) #file handling on the data stream while True: line = thefile.readline() if not line: time.sleep(0.1) continue yield line logfile = open("C:/Users/ra/Desktop/mon23.csv","r") loglines =

问题 Is it possible to create a stream that reads from a specific position of file in node.js? I know that I could use a more traditional fs.open / seek / read API, but in that case I need to somehow wrap them in a stream for underlying layers of my application. 回答1: fs.createReadStream() has an option you can pass it to specify the start position for the stream. let f = fs.createReadStream("myfile.txt", {start: 1000}); You could also open a normal file descriptor with fs.open() , then fs.read()

问题 I have an application with a VideoView in it, I set a video to play in the VideoView. At some point while the video is playing it will get paused. Then after it is paused for some time it will begin to play the video again, but seek forward to the point that the video would be at if it had not been paused. So for instance Video starts playing Video paused at 6 seconds video stays paused for 10 seconds Video starts playing again <--- at this point I want the video to start playing at the 16

问题 I am looking for a memory stream implementation in Java. The implementation should be roughly modeled after the .NET memory stream implementation. Basically I would like to have a class MemoryStream which has to factory methods: class MemoryStream { MemoryInput createInput(); MemoryOutput createOutput(); } class MemoryInput extends InputStream { long position(); void seek(long pos); } class MemoryOutput extends OutputStream { long position(); void seek(long pos); } So once I have an instance

问题 I am looking for a memory stream implementation in Java. The implementation should be roughly modeled after the .NET memory stream implementation. Basically I would like to have a class MemoryStream which has to factory methods: class MemoryStream { MemoryInput createInput(); MemoryOutput createOutput(); } class MemoryInput extends InputStream { long position(); void seek(long pos); } class MemoryOutput extends OutputStream { long position(); void seek(long pos); } So once I have an instance

问题 I'm trying to obtain playback video streams from some Axis and Hikvision cameras, using Onvif. I'm doing this in a C# application, and the resulted stream is played in VLC. Using the FindRecordings/GetRecordingSearchResult calls and then GetReplayUri I can obtain the playback stream (RTSP/H264), but here I have this problem: this behaves like a live stream - I can only use play and pause. I cannot use the time cursor to seek, cannot play in reverse. So I find this unusable for a playback

问题 Say I have a hashmap with String type as key and ArrayList type as value, example {"value1"=["one","three","five"], "value2"=["two","four","six"]} where "value1" and "value2" are keys. I want to write the above hashmap data in following format. (so that I can read the csv file in excel) value1,value2 one,two three,four five,six My idea was to write the first key and its values as follows value1 one three five Then I was thinking of using the seek method in RandomAccessFile class to back to

来源： https://stackoverflow.com/questions/29376498/read-specific-bytes-of-file-in-python

来源： https://stackoverflow.com/questions/54589084/avplayer-seek-not-accurate-even-with-tolerancebefore-kcmtimezero

来源： https://stackoverflow.com/questions/54589084/avplayer-seek-not-accurate-even-with-tolerancebefore-kcmtimezero