✳ CONTAINER HUB
MKV (Matroska) compatibility across creator platforms
open container that can hold multiple audio/subtitle tracks; common in archives and downloaded video.
Updated
192 documented platform x codec combinations. Verdicts: Not documented (192).
Per-platform coverage
- TikTok: VP9 - Not documented, FLAC - Not documented, H264 - Not documented, H265 - Not documented, VP8 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, PCM - Not documented
- Instagram Reels: FLAC - Not documented, H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, PCM - Not documented
- Instagram Feed: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- Instagram Stories: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- YouTube Shorts: VP9 - Not documented, AV1 - Not documented, H264 - Not documented, FLAC - Not documented, H265 - Not documented, VP8 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, PCM - Not documented
- YouTube (long-form): VP9 - Not documented, AV1 - Not documented, H264 - Not documented, FLAC - Not documented, H265 - Not documented, VP8 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, PCM - Not documented
- LinkedIn: FLAC - Not documented, H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, PCM - Not documented
- X (Twitter): H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- Facebook Reels: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- Facebook Feed: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- Pinterest: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- Snapchat: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- Spotify Canvas: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- Threads: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- Snapchat Spotlight: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
- Snapchat Story: H264 - Not documented, H265 - Not documented, VP8 - Not documented, VP9 - Not documented, AV1 - Not documented, PRORES - Not documented, MPEG4 - Not documented, AAC - Not documented, MP3 - Not documented, OPUS - Not documented, FLAC - Not documented, PCM - Not documented
Validity per codec
- VP9: pair common - VP9 inside MKV is common in archives; not all creator platforms decode it server-side.
- FLAC: pair common - FLAC inside MKV is the standard archival pair.
- H264: pair common - H.264 inside MKV is supported by FFmpeg and most desktop players.
- AV1: pair common - AV1 inside MKV is supported; not all creator platforms decode it server-side.
- H265: pair common - HEVC inside MKV is common in archives; not all creator platforms decode it server-side.
- VP8: pair unusual - technically muxable; rare in practice.
- PRORES: pair unusual - FFmpeg can mux ProRes into MKV; rare in practice.
- MPEG4: pair unusual - FFmpeg can mux it; rare in practice.
- AAC: pair common - AAC inside MKV is supported by FFmpeg and most desktop players.
- MP3: pair common - MP3 inside MKV is supported; some downstream players remux to Opus.
- OPUS: pair common - Opus inside MKV is supported and common.
- PCM: pair common - PCM inside MKV is supported and common in archives.