* Initial plan
* Fix crash when adjusting volume via button while audio device is disabled
When both input and output are disabled, UpdateDeviceState() sets dev_ to
nullptr. Pressing a volume button calls SetOutputVolume() which previously
called esp_codec_dev_set_out_vol(dev_, volume) without null-checking dev_,
causing a crash via ESP_ERROR_CHECK.
Fix: Add null guard for dev_ and mutex lock for thread safety. The volume
is still saved via AudioCodec::SetOutputVolume() and will be applied when
the device is reopened by UpdateDeviceState().
Agent-Logs-Url: https://github.com/78/xiaozhi-esp32/sessions/945c653a-ed16-49af-aefe-5cfb473402c6
Co-authored-by: 78 <4488133+78@users.noreply.github.com>
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: 78 <4488133+78@users.noreply.github.com>
* refactor: Remove hardcoded loop delay for GIF playback in LcdDisplay class
* chore: Update esp-ml307 and uart-eth-modem component versions in idf_component.yml
- Bump esp-ml307 version from ~3.6.3 to ~3.6.4
- Update uart-eth-modem version from ~0.3.1 to ~0.3.2
* feat: Add PrintPmLocks method to SystemInfo class
- Introduced PrintPmLocks method to display power management locks using esp_pm_dump_locks.
- Updated system_info.h to declare the new method.
* refactor: Streamline audio codec initialization and enablement
- Removed redundant channel enable checks from AudioCodec::Start.
- Added channel enablement in CreateDuplexChannels for various audio codecs.
- Implemented EnableInput and EnableOutput methods in NoAudioCodec for better control over input/output states.
* refactor: Delay audio success sound playback until after activation completion
- Moved the success sound playback to a scheduled task to ensure it occurs after the activation process is complete.
- This change improves the responsiveness of the application during activation events.
* refactor: Update camera integration from EspVideo to Esp32Camera
- Replaced EspVideo with Esp32Camera for improved camera configuration and initialization.
- Streamlined camera setup by utilizing a new configuration structure for better clarity and maintainability.
- Updated README.md to remove outdated camera sensor configuration instructions.
* refactor: Update audio demuxing process in AudioService
- Replaced the existing demuxer instance with a local unique pointer in the PlaySound method for better memory management.
- Moved the OnDemuxerFinished callback setup into the PlaySound method to ensure it is correctly associated with the new demuxer instance.
- Removed the member variable demuxer_ from AudioService to streamline the class structure.
