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Changelog

All notable changes to the daily-python SDK will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.10.1] - 2024-06-24

Fixed

  • Fixed an issue that would cause speaker/microphone completion callbacks to not be called if no other participant was in the call.

[0.10.0] - 2024-06-20

Added

  • Added dial-out event dialout-answered.

Other

  • Added new example demos/audio/async_wav_audio_send.py that shows how to use asyncio with completion callbacks.

[0.9.1] - 2024-05-29

Fixed

  • Fixed an issue where VideoFrame.timestamp_us was always 0.

[0.9.0] - 2024-05-28

Fixed

  • Fixed a potential crash caused by audio/video renderers.

  • Fixed an issue with audio/video renderers that was preventing renderers to be removed when participants leave.

Performance

  • CPU and memory performance improvements.

[0.8.0] - 2024-05-23

Added

  • Added dialin-ready event.

  • Added dial-out events dialout-connected, dialout-stopped, dialout-error and dialout-warning.

Changed

  • CallClient.stop_dialout() now takes the participant ID of the dial-out session we want to stop.

[0.7.4] - 2024-04-16

Fixed

  • Fixed a crash caused by the following completion callbacks: CallClient.update_inputs(), CallClient.update_publishing(), CallClient.update_subscriptions(), CallClient.update_subscription_profiles(). The signature of the functions was wrongly documented as only a single error argument is passed.

  • Fixed issue when calling CallClient.update_publishing() immediately after CallClient.update_inputs().

[0.7.3] - 2024-04-09

Fixed

  • Fixed an issue that could cause video and audio renderers not to work if they were registered after the media track was already being received.

[0.7.2] - 2024-03-22

Fixed

  • Fixed missing milliseconds in client logs timestamps.

[0.7.1] - 2024-03-08

Fixed

  • Fixed an issue that could cause join to fail if recording/transcription/live stream was started from the REST API.

[0.7.0] - 2024-02-29

Added

  • Added initial support for low-level Voice Activity Detection (VAD).
vad = Daily.create_native_vad(1000, 16000, 1)
confidence = vad.analyze_frames(audio_frames)

  • Added includeRawResponse field to TranscriptionSettings. If true, all incoming TranscriptionMessage will include a new rawResponse field with Deepgram's raw data.

  • Added new CallClient.release() function to allow freeing resources even in the event of EventHandler circular dependencies. It is common to have the following code:

class MyClient(EventHandler):

  def __init__(self):
    self.call_client=CallClient(event_handler=self)

  ...

If MyClient is a single application there shouldn't be any issues with freeing resources when the application ends. However, if we have an application that wants to create and release multiple CallClient instances the previous approach won't work with Python's garbage collection since there's a circular dependency. To solve this, we can now do:

class MyClient(EventHandler):

  def __init__(self):
    self.call_client=CallClient(event_handler=self)

  def leave(self):
    self.call_client.leave()
    self.call_client.release()

  ...

The new CallClient.release() function also blocks until all previous asynchronous operations have completed, so it's another convenient way to know, for example, when CallClient.leave() finishes.

Changed

  • ⚠️ Breaking change ⚠️: Completion callbacks now receive only the necessary arguments. For example, before CallClient.leave(completion=...) completion callback would receive (None, Error | None) arguments when it should only receive (Error | None).

    This is the list of functions with completion callbacks that have been affected: CallClient.leave(), CallClient.update_remote_participants(), CallClient.eject_remote_participants(), CallClient.update_permissions(), CallClient.start_recording(), CallClient.stop_recording(), CallClient.update_recording(), CallClient.start_transcription(), CallClient.stop_transcription(), CallClient.start_dialout(), CallClient.stop_dialout(), CallClient.send_app_message(), CallClient.send_prebuilt_chat_message().

    If you use any of the completion callbacks from one of the functions listed above, you simply need to remove the first argument from your callable.

Other

  • Updated demos to use the new CallClient.release() function.

[0.6.4] - 2024-02-28

Fixed

  • Fixed an issue that would not allow join to succeed if a React Native client was already in the room.

[0.6.3] - 2024-02-22

Added

  • Add support for audio-only recording layout preset.

[0.6.2] - 2024-02-14

Fixed

  • Virtual microphones now always send audio (silence) if the user doesn't provide audio frames.

  • Fix deadlock when registering completion callbacks inside callbacks.

  • Enable Opus FEC to improve audio with network packet loss.

  • Fixed multiple issues which could cause a deadlock during network reconnection.

  • Ensure that CallClient.update_inputs() continues to be usable while the network is down.

  • Fixed a crash which could occur if the network connection drops soon after joining.

Other

  • Simplied demos by using client_settings parameter in CallClient.join() instead of a separate CallClient.update_inputs() call.

  • Updated pyaudio demo to only use non-blocking virtual devices.

[0.6.1] - 2024-01-22

Fixed

  • Disable Opus DTX (discontinuous transmission). This improves audio quality and fixes issues on recordings.

[0.6.0] - 2024-01-18

Added

  • Added punctuate and endpointing fields to TranscriptionSettings.

  • Added dialout support with CallClient.start_dialout() and CallClient.stop_dialout().

  • Added completion callbacks to VirtualMicrophone.write_frames() and VirtualSpeaker.read_frames(). This change makes virtual devices completely asynchronous if they are created with non_blocking set to True.

Changed

  • Renamed session_id field to participantId in TranscriptionMessage.

Removed

  • Removed is_final, user_id and user_name fields from TranscriptionMessage.

Fixed

  • Room deletion messages from the server are now properly handled.

  • CallClient.send_app_message(None) now properly triggers a ValueError exception.

  • If an invalid participant ID is passed to CallClient.send_app_message() it will now trigger a ValueError exception.

  • Fixed an issue that would cause audio crackling and popping when using non-blocking devices.

  • Fixed support for different audio sample rates and number of channels, other than 16000 and 1 channel.

  • Don't quote the participant ID when passing the string to video/audio renderer callbacks.

  • Fixed a potential crash on shutdown when using a virtual camera device.

  • Emit transcription-started event if transcription is already started when joining the room.

Other

  • Added GStreamer media player demo.

[0.5.4] - 2023-12-08

Fixed

  • Fixed another issue that could cause CallClient.join() to fail if another Daily web client was also joining at the same time.

[0.5.3] - 2023-12-08

Fixed

  • Fixed an issue that could cause CallClient.join() to fail if another Daily web client was also joining at the same time.

[0.5.2] - 2023-12-05

Fixed

  • Disabled echo cancellation, noise suppression and auto gain control by default to match the previous library behavior.

[0.5.1] - 2023-11-30

Fixed

  • Fixed a crash when passing audio frames to VirtualMicrophone.write_frames() that require padding (i.e. non-multiple of 10ms worth of audio frames).

[0.5.0] - 2023-11-30

Added

  • Support for non-blocking virtual audio devices. This allows integration with hardware devices (e.g. via PyAudio).

  • Echo cancellation, noise suppression and auto gain control can now be enabled for virtual microphones via custom constraints.

  • It is now possible to pass additional Deepgram settings to start_transcription() using the new extra field.

Changed

  • Transcription defaults have been removed in favor of Deepgram's defaults. This allows to simply specify {"model": "nova-2"}.

  • Transcription redact can now also be a list of strings as supported by Deepgram (e.g. ["pci"]).

Fixed

  • Fixed an issue on user leave (manual or by the server) that would prevent the user to rejoin.

Other

  • New demos to show how to integrate with PyAudio, how to send images and other improvements in existing demos.

[0.4.0] - 2023-11-09

Added

  • Added support for capturing individual participant audio tracks.

  • Added support for ejecting participants.

  • Support python >= 3.7 and, on Linux, glibc >= 2.28.

Changed

  • Transcription defaults have been removed in favor of Deepgram's defaults. This allows to simply specify {"model": "nova-2"}.

  • Transcription redact can now also be a list of strings as supported by Deepgram (e.g. ["pci"]).

Fixed

  • Fixed a deadlock that would not allow receiving multiple simultaneous video renderers.

  • Fixed a deadlock when a screen share was stopped.

  • Fixed an issue where setting the user name could not be reflected automatically when requesting participants list.

  • Fixed an issue that could cause joins/reconnects to not complete successfully.

  • Fixed a sporadic crash that could occur when handling media streams.

Performance

  • Improved general video renderer performance.

  • Improved media subscriptions stability and performance.

Other

  • Added Qt demo (similar to the existing Gtk demo).

  • Qt and Gtk demos can now save the selected participant audio into a WAV file and can also render screen share.

[0.3.1] - 2023-10-25

Fixed

  • Fixed an issue that could cause daily-python clients to join a session in a different region.

  • Fixed a dead-lock that could occur when a CallClient is destroyed.

[0.3.0] - 2023-10-23

Added

  • Support for sending chat messages to Daily Prebuilt (CallClient.send_prebuilt_chat_message()).

  • Added Python type hints (helpful for editor completions).

  • Support for Python 3.8.

Changed

  • EventHandler.on_transcription_stopped can now tell if transcription was stopped by a user or because of an error occurred.

Removed

  • Removed detect_language from TranscriptionSettings.

Fixed

  • Improved response time of CallClient getter functions.

  • Improved low-latency performace of virtual audio devices.

  • Fixed potential crash after CallClient.leave().

  • Improved internal safeness of participant video renderers.

  • Fixed a VirtualMicrophoneDevice memory leak.

  • Properly trigger a transcription error event if transcription can't start.

Other

  • Demos have been updated to show more real live code.

[0.2.0] - 2023-10-03

Added

  • Support for start/stop recordings.

  • Support for start/stop transcriptions and receive transcriptions messages.

Changed

  • VirtualSpeakerDevice.read_frames() has been improved and doesn't require the user to add sleeps. Therefore, it is now possible to read, for example, 10 seconds of audio in a single call. Since the timings are now controlled internally, this minimizes any potential audio issues.

    The following old code:

SAMPLE_RATE = 16000
READ_INTERVAL = 0.01
FRAMES_TO_READ = int(SAMPLE_RATE * READ_INTERVAL)
SECONDS_TO_READ = 10.0

for _ in range (int(SECONDS_TO_READ / READ_INTERVAL)):
  buffer = speaker.read_frames(FRAMES_TO_READ)
  time.sleep(READ_INTERVAL)

can be replaced with:

SECONDS_TO_READ = 10
FRAMES_TO_READ = SAMPLE_RATE * SECONDS_TO_READ
buffer = speaker.read_frames(FRAMES_TO_READ)

Fixed

  • Fixed an issue that was causing sporadic audio gaps on macOS and in certain OS task scheduling scenarios.

  • Network re-connections have been improved.

[0.1.1] - 2023-09-27

Fixed

  • Fixed an issue where virtual devices could cause other Python threads to be blocked.