This article demonstrates how to integrate HarmonyOS Media Library Kit's Moving Photo capability into a real app, covering selection, import, sandbox storage, data modeling, and playback with MovingPhotoView using the Time Travel Journal app as a case study.
Huawei's HarmonyOS best practice document details full-chain live streaming development: publisher-side audio/video capture with OHAudio, SDR/HDR Vivid video options, Surface-mode encoding, ROI region-of-interest coding, and system-pressure feedback for dynamic bitrate control; viewer-side AVPlayer playback, timestamp-based A/V sync, and memory-leak prevention; plus scenario-specific guidance for e-commerce, entertainment, and outdoor streams.
This article details three core aspects of building cinema-grade long video apps with HarmonyOS AVPlayer: smooth gesture-based brightness and orientation controls, stable playback via audio focus management and seamless foreground/background resume, and full functionality including picture-in-picture and background audio playback.
This tutorial demonstrates how to implement external subtitles (SRT/VTT) in HarmonyOS using AVPlayer's subtitleUpdate event, covering subtitle file loading via addSubtitleFromFd, callback registration, synchronization, and limitations like pre-playback-only subtitle setting.
This guide details how to implement audio and video capture using Camera Kit, AudioCapturer, and OHAudio, as well as playback with AVPlayer in HarmonyOS apps, covering permission setup, device selection, profile configuration, session creation, resource management, and supported formats.
The article details a systematic investigation of intermittent audio playback stutter on iOS 14.5, tracing the issue from AVPlayer playback through Audio Queue recording, analyzing AudioStreamBasicDescription parameters and buffer size inconsistencies, and presenting a code‑level fix that aligns buffer sizes before invoking AudioConverterFillComplexBuffer.
