Unified file conversion in FFmpegAddonAdapter to use decodeAudioToFmt for all formats, updated FFmpeg interface and service to support new conversion method, and added adapter name checks in GetRecord and DownloadFileRecordStream for optimized conversion flow. Updated native addon binaries to support these changes.
Updated the FFmpeg adapter interfaces and implementations so that PCM conversion methods now return an object containing the conversion result and sample rate, instead of a Buffer. Adjusted audio processing logic to accommodate this change and improved error logging. Updated native ffmpeg addon binaries.
Introduced FFmpeg Node.js native addon binaries for multiple platforms (darwin-arm64, linux-arm64, linux-x64, win-x64) and added TypeScript type definitions for the addon interface, including video info extraction, duration detection, audio conversion, and PCM decoding.
