Commit graph

6 commits

Author SHA1 Message Date
Nick Miller
9a2c80c791 SoundPlayer: Handle any input file sample rate
This commit addresses two issues:
1. If you play a 96 KHz Wave file, the slider position is incorrect,
   because it is assumed all files are 44.1 KHz.
2. For high-bitrate files, there are audio dropouts due to not
   buffering enough audio data.

Issue 1 is addressed by scaling the number of played samples by the
ratio between the source and destination sample rates.

Issue 2 is addressed by buffering a certain number of milliseconds
worth of audio data (instead of a fixed number of bytes).
This makes the the buffer size independent of the source sample rate.

Some of the code is redesigned to be simpler. The code that did the
book-keeping of which buffers need to be loaded and which have been
already played has been removed. Instead, we enqueue a new buffer based
on a low watermark of samples remaining in the audio server queue.

Other small fixes include:
1. Disable the stop button when playback is finished.
2. Remove hard-coded instances of 44100.
3. Update the GUI every 50 ms (was 100), which improves visualizations.
2021-06-21 03:13:59 +04:30
Brian Gianforcaro
1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00
Cesar Torres
fd126578d9 SoundPlayer: Add samplerate variable to visualizations
also fix conflict
2021-03-27 10:20:55 +01:00
Cesar Torres
f9e4bff487 SoundPlayer: Reduce sample buffer size and add a sample load event 2021-03-27 10:20:55 +01:00
Andreas Kling
2cd16778b5 AudioServer+LibAudio: Pass audio buffers as Core::AnonymousBuffer
This was the last remaining user of shbufs! :^)
2021-01-17 09:07:32 +01:00
Andreas Kling
dc28c07fa5 Applications: Move to Userland/Applications/ 2021-01-12 12:05:23 +01:00
Renamed from Applications/SoundPlayer/PlaybackManager.cpp (Browse further)