src/audio/pipewire/SDL_pipewire.h


Log

Author Commit Date CI Message
Frank Praznik 53091e36 2022-02-02T12:30:34 audio: pipewire: Remove the hard upper bound on rates and buffer sizes Remove the hard upper limit of 8192 samples and instead use the buffer sizes provided by Pipewire to determine the size of the intermediate input buffer and whether double buffering is required for output streams. This allows for higher latency streams to potentially avoid double-buffering in the output case, and we can guarantee that the intermediate input buffer will always be large enough to handle whatever Pipewire may deliver. As the buffer size calculations occur in a callback in the Pipewire processing thread itself, the stream readiness check has been modified to wait on two distinct flags set when the buffers have been configured and when the stream is ready and running.
Frank Praznik 66866249 2022-02-02T11:09:02 audio: pipewire: Condition variable doesn't need to be atomic The condition variable is guarded by a mutex, so no need for it to be atomic.
Sam Lantinga 120c76c8 2022-01-03T09:40:00 Updated copyright for 2022
Frank Praznik 5f9effaa 2021-03-28T17:45:41 audio: pipewire: Block while waiting on stream state info Initializing streams, particularly capture streams, can take many milliseconds, which is a bit much for a busy wait. Use a blocking wait instead.
Frank Praznik 5bb2bbd4 2021-03-28T17:17:00 audio: pipewire: Don't use uninitialized variables in callbacks Some of the SDL_AudioDevice struct members aren't initialized until after returning from the OpenDevice function. Since Pipewire uses it's own processing threads, the callbacks can be entered before all members of SDL_AudioDevice are initialized, such as work_buffer, callbackspec and the processing stream, which creates a race condition. Don't use these members when in the paused state to avoid potentially using uninitialized values and memory.
Frank Praznik 7001b531 2021-02-27T12:53:08 audio: pipewire: Add vim format lines to files and fix indentation Increase indentation spacing from 2 to 4 to comply with style standards.
Frank Praznik 9afd7570 2021-02-20T13:33:12 audio: pipewire: Always buffer source audio The latency of source nodes can change depending on the overall latency of the processing graph. Incoming audio must therefore always be buffered to ensure uninterrupted delivery. The SDL_AudioStream path was removed in the input callback as the only thing it was used for was buffering audio outside of Pipewire's min/max period sizes, and that case is now handled by the omnipresent buffer.
Frank Praznik 2f0b99a7 2021-02-13T11:56:05 audio: Add Pipewire playback/capture sink