Streams in the following container formats can be played directly by ExoPlayer. The contained audio and video sample formats must also be supported (see the [sample formats](supported-formats.html#sample-formats) section for details). | Container format | Supported | Comments | |------------------|:------------:|:---------------------| | MP4 | YES || | M4A | YES || | FMP4 | YES || | WebM| YES || | Matroska| YES || | MP3 | YES | Some streams only seekable using constant bitrate seeking** | | Ogg | YES | Containing Vorbis, Opus and FLAC | | WAV | YES || | MPEG-TS | YES || | MPEG-PS | YES || | FLV | YES | Not seekable* | | ADTS (AAC) | YES | Only seekable using constant bitrate seeking** | | FLAC | YES | Using the [FLAC extension][] or the FLAC extractor in the [core library][]*** | | AMR | YES | Only seekable using constant bitrate seeking** | | JPEG motion photo | YES | Only the MP4 content is extracted | \* Seeking is unsupported because the container does not provide metadata (e.g., a sample index) to allow a media player to perform a seek in an efficient way. If seeking is required, we suggest using a more appropriate container format. \*\* These extractors have `FLAG_ENABLE_CONSTANT_BITRATE_SEEKING` flags for enabling approximate seeking using a constant bitrate assumption. This functionality is not enabled by default. The simplest way to enable this functionality for all extractors that support it is to use `DefaultExtractorsFactory.setConstantBitrateSeekingEnabled`, as described [here](customization.html#enabling-constant-bitrate-seeking). \*\*\* The [FLAC extension][] extractor outputs raw audio, which can be handled by the framework on all API levels. The [core library][] FLAC extractor outputs FLAC audio frames and so relies on having a FLAC decoder (e.g., a `MediaCodec` decoder that handles FLAC (required from API level 27), or the [FFmpeg extension][] with FLAC enabled). The `DefaultExtractorsFactory` uses the extension extractor if the application was built with the [FLAC extension][]. Otherwise, it uses the [core library][] extractor. [FLAC extension]: {{ site.release_v2 }}/extensions/flac [core library]: {{ site.release_v2 }}/library/core [FFmpeg extension]: {{ site.release_v2 }}/extensions/ffmpeg