record internal audio android

the element.Remember to release Maudiotrack and Maudiorecorder at the end of the play. Implemented by the stop and release methods.3.IOS realizes Voice changerBecause I did not touch the iOS before so I met a lot of problems, fortunately, finally solved.iOS audio processing is more troublesome than Android, the core API used is audioqueue, it must be understood before using the principle, and

output, no matter whether the headset is inserted or not; when the headset is inserted, only the SPEAKER is disabled. Astray: 1. it is a waste of time to look at the Android upper-Layer Code for a long time in various types. If you use tinymix to view the normal switching of the audio channel, it means that there is no problem with all the above kernel, the problem also lies in the kernel and hardware. C

issue is resolved by setting Hp_ctl_gpio to invalid_gpioin the resource. Bonus: Principle headphones There has always been audio output, no matter the insertion is not plugged into the headset, the headset is inserted only when the SPEAKER is forbidden. Strayed Astray:1. Mistakenly think to go to see the Android Upper code in each kind of search for a long time, it is a waste, if you use tinymix to view th

Long time not updated blog, from the company resigned years ago, this six months, has been to do some outsourcing app to feed themselves! is also to achieve their own years ago set goals! But also think that can not always do outsourcing it, so decided to do some of their own feel interesting app, hang to the App Store and App Store, as long as there are 1-2k or 1-2w active users, they are satisfied!Recently thinking to make a voice feed system, difficult, in fact, is in the

()Method. You can use the START () method to Resume playback in the paused area.Play a fileThe following describes how to play a file:1. Create a mediaplayer instance with new;2. Call the setdatasource () method. This method has a string type parameter. This string type parameter contains the path of the file to be played-local file system or URL;3. Call the prepare () method first, and then start () method.JavaCode: Copy to clipboardJava code Mediaplayer MP =NewMediaplayer (); MP. setdat

;MMASTERVOLUMESW = 1.0;Mmastervolume = 1.0;Mhardwarestatus =audio_hw_idle;}The Ro.audio.flinger_standbytime_ms property provides an interface for the user to adjust the standby time, which is fixed in earlier versions. The next step is to initialize several important internal variables, unlike constructors, where the values given are valid.From this point on, Audioflinger is a "meaningful" entity, because someone has used it. Next, other processes can

= Audio_mode_normal;MMASTERVOLUMESW = 1.0;Mmastervolume = 1.0;Mhardwarestatus =audio_hw_idle;}The Ro.audio.flinger_standbytime_ms property provides an interface for the user to adjust the standby time, which is fixed in earlier versions. The next step is to initialize several important internal variables, unlike constructors, where the values given are valid.From this point on, Audioflinger is a "meaningful" entity, because someone has used it. Next,

Android audio and video goes deep into 21 FFmpeg video cutting, androidffmpeg Video cutting I accidentally found that the code of the last video compression can run the FFmpeg video cutting command, but it cannot be used to merge videos, because you cannot read txt files that record the paths of several videos. Here I will talk about the video cutting process, no

high , and SPEAKERis not disabled. The schematic does not have a separate headphone to enable the pin. set hp_ctl_gpio to invalid_gpioin the resource. Problem solved. Bonus: Principle headphones There has always been audio output, no matter the insertion is not plugged into the headset, while inserting the headset SPEAKER is forbidden. Strayed Astray:1. Mistakenly think to see the Android upper layer code

1.1 AudioflingerIn the above frame diagram, we can see that Audioflinger (hereinafter referred to as AF) is the core and difficulty of the entire audio system. As an audio hub in an Android system, it is also a system service that restarts (providing access to the upper layer) to the boot (to manage audio devices throu