Programmer's Log @julianhernandezmunoz - Tumblr Blog

Rewrite name and email of author in Git commits

Change the author and committer name and e-mail of multiple commits in Git

Note: This rewrites the Git history!

CURRENT_EMAIL="[email protected]" NEW_EMAIL="[email protected]" NEW_NAME="New Name" git filter-branch -f --commit-filter ' if [ "$GIT_AUTHOR_EMAIL" = "$CURRENT_EMAIL" ]; then export GIT_AUTHOR_NAME="$NEW_NAME"; export GIT_AUTHOR_EMAIL="$NEW_EMAIL"; export GIT_COMMITTER_NAME="$NEW_NAME"; export GIT_COMMITTER_EMAIL="$NEW_EMAIL"; fi; git commit-tree "$@"'

#git

One line browser notepad

Reposting a great tip for when in need of a quick and simple notepad.

One line browser notepad

Just type in the browser URL tab:

data:text/html, <html contenteditable>

#notepad #browser #html5

NSNotification and userInfo in Swift

Getting the code right in Swift to retrieve data from the NSNotification userInfo dictionary was not straightforward, mainly due to compilation errors from type casting the dictionary and its values. The following two key points helped find the correct solution:

userInfo is an optional dictionary, so it requires unwrapping.

The mapped value in the dictionary needs to be type casted to NSValue.

Furthermore, if the mapped value is an enumeration, you can use its fromRaw method to get back the enumeration member. The code snippet below shows an example with AVAudioSessionInterruptionNotification. In this case the userInfo dictionary maps key AVAudioSessionInterruptionTypeKey to a member of AVAudioSessionInterruptionType. After retrieving the int value of the enumeration from the dictionary, you can get the enumeration member and go through a switch statement.

https://gist.github.com/jchernan/de6c30b40fb69d03fb63

Another example of retrieving a value from userInfo can be found here.

#ios #swift #nsnotification

Objective-C wrapper for AAC to PCM audio conversion

Code in GitHub - jchernan/TPAACAudioConverter

This fork of michaeltyson/TPAACAudioConverter modifies the original code to perform AAC to PCM audio data conversion. AAC audio files are smaller and thus faster to download or stream. An application can then use this version of TPAACAudioConverter to convert AAC audio files to PCM audio data. Raw PCM format is more suitable to play in iOS, through OpenAL for example.

This version of TPAACAudioConverter assumes that the AVAudioSession will be set up with a non-mixable category like AVAudioSessionCategoryPlayback. It also requires handling interruptions by registering to AVAudioSessionInterruptionNotification.

Sample usage in Objective-C:

https://gist.github.com/jchernan/6a20bae45f49b8ff9380

Sample usage in Swift:

https://gist.github.com/jchernan/1937b4373464d8dd84ae

#ios #objective-c #swift #openal #github

Trending Blogs

Recently Viewed Blogs

Programmer's Log