qtfaststart | Quicktime atom positioning in Python | Code Editor library
kandi X-RAY | qtfaststart Summary
kandi X-RAY | qtfaststart Summary
Quicktime atom positioning in Python for fast streaming
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Top functions reviewed by kandi - BETA
- Process the input file
- Patch the given atom with the given offset
- Find atoms in a datastream
- Read atoms from a datastream
- Returns the index of the top level atoms in a datastream
- Check if a moov atom is compressed
- Ensures that the given index is valid
- Read Atom from the datastream
- Read the size and type of Atom
- Get chunks from stream
- Write a moov object
qtfaststart Key Features
qtfaststart Examples and Code Snippets
Community Discussions
Trending Discussions on qtfaststart
QUESTION
So I've built a picture and video partial upload system that seemed to work fine UNTIL we either tried to compress a video or the user tries to play a video. I discovered that writing a video's bytes was not so simple as appending bytes... I'm now (slightly) familiar with concepts such as atoms (free, mov, mdat, uuid, etc) and would like to know why and how a video, which is just a collection of bytes appended to a new file, doesn't recognize that the atoms are still present even though all the bytes are being written.
Anyway here is some source code:
Server Side we have a partial upload object:
...ANSWER
Answered 2020-Jan-30 at 16:22So I found the problem which was an error in the code. When bytes have their from and to values, you don't need to account for the last byte being written, you just continue off the same number. So the following was correct:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install qtfaststart
You can use qtfaststart like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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