ESP Player

[中文]

esp_player is an embedded multimedia playback component from Espressif. A single instance chains demuxing, decoding, and rendering, supporting local files, HTTP(S) streams, HLS, and containerless external frame input. It targets resource-constrained IoT and multimedia applications.

Key Features

  • Multiple input sources: local files (file:///), HTTP/HTTPS streams, HLS (.m3u8 auto-detection), and external frame modes (fill:///, block:///)

  • Common container formats: WAV, MP4, M4A, TS, OGG, AVI, FLV, CAF; raw ES stream files (.mp3, .aac, .flac, .amr without container headers)

  • Audio decode formats: AAC, MP3, Vorbis, Opus, FLAC, AMR-NB/WB, G.711 A-law/μ-law, ALAC, ADPCM, SBC, LC3

  • Video decode formats: H.264, MJPEG

  • A/V synchronization: four modes—system clock, audio master clock, video master clock, and freerun (no sync)

  • Playback control: play, pause, resume, stop, seek (milliseconds), and playback speed

  • Audio/video track selection: independent audio/video enable, with track enumeration and selection for multi-track containers

  • Network buffering: startup pre-buffering and runtime re-buffering based on queue watermarks

  • Event notification: synchronous callbacks or asynchronous event queue, covering playback state, buffering, errors, and track information

  • Custom decoders: register proprietary GMF audio/video decode elements via factory callbacks, coexisting with built-in decoders

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