Verifying digital signaturesīoth the zip file and the APK contained within are digitally signed. The recording process pulls PCM s16le raw audio at the device’s native sample rate and uses Android’s built-in encoders to produce the compressed output file. With these two permissions, BCR can reliably detect phone calls and record from the call’s audio stream. This stream, along with some others, like VOICE_DOWNLINK and VOICE_UPLINK, cannot be accessed without this system permission. This permission is used to record from the VOICE_CALL audio stream. It also does not require the service to be manually started from an ACTION_BOOT_COMPLETED broadcast receiver and thus is not affected by that broadcast’s delays during initial boot. Due to the way that the telephony service binds to BCR’s InCallService, the service can bring itself in and out of the foreground as needed when a call is in progress and access the audio stream without hitting Android 12+’s background microphone access limitations. This method has a couple additional benefits. This method is much more reliable than using the READ_PHONE_STATE permission and relying on _STATE broadcasts. Once bound, the service will receive callbacks for call change events (eg. This permission allows Android’s telephony service to bind to BCR’s InCallService without BCR being a wearable companion app, a car UI, or the default dialer. This is primarily because of two permissions: This method is more convenient if BCR is baked into the Android firmware image.īCR relies heavily on system app permissions in order to function properly. With this method, the old version exists as a system app and the new version exists as a user-installed update to the system app. apk can also be extracted from the zip and be directly installed. Flashing the new version in Magisk manually also works just as well. If installed via Magisk, the module can be updated right from Magisk Manager’s modules tab.To install future updates, there are a couple methods: If no output directory is selected or if the output directory is no longer accessible, then recordings will be saved to /sdcard/Android/data//files. To verify the digital signature, see the verifying digital signatures section.įor devices rooted with Magisk, simply flash the zip as a Magisk module from within the Magisk app.įor unrooted custom firmware, the files from the system/ folder in the zip will need to be baked into the system image (or otherwise made available on the actual /system volume).Įnable call recording and pick an output directory. Support for direct boot mode (the state before the device is initially unlocked after reboot)ĭownload the latest version from the releases page.Workarounds for devices that don’t support the VOICE_CALL audio source (eg.Workarounds for OEM-specific battery optimization and app killing behavior.Support for old Android versions (support is dropped as soon as maintenance becomes cumbersome).Thus, many potentially useful features will never be implemented, such as: The project will have succeeded at its goal if the only updates it ever needs are for compatibility with new Android versions. Works with call screening on Pixel devices (records the caller, but not the automated system)Īs the name alludes, BCR intends to be a basic as possible.No persistent notification unless a recording is in progress.Supports Android’s Storage Access Framework (can record to SD cards, USB devices, etc.).Records at the device’s native sample rate.M4A/AAC – Lossy, smaller files, default on Android 9.OGG/Opus – Lossy, smallest files, default on Android 10+.Supports compressed output in various formats:.Once enabled, it stays out of the way and automatically records incoming and outgoing calls in the background. BCR is a simple Android call recording app for rooted devices or devices running custom firmware.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |