Matroska (mkv) : Sub Station Alpha (SSA), Advanced Sub Station Alpha (ASS), SRT
MP4 : Timed Text
Supported Video Codecs
Extension Codec
asf
wmv
Video VC-1 Advanced Profile (except for WMVA), VC-1 Simple and
Main Profiles
Audio WMA Standard (except for WMA v1/WMA Speech)
avi Video Xvid (GMC is not supported), H.264/AVC, Motion Jpeg, MPEG-4
Audio MPEG-1 Layer I, II, MPEG-1 Layer III (MP3), Dolby Digital,
LPCM, ADPCM
mp4
m4v
mov
Video H.264/AVC, MPEG-4, HEVC, AV1, VVC
Audio Dolby Digital, Dolby Digital Plus, AAC, MPEG-1 Layer III (MP3),
Dolby AC-4
3gp
3g2
Video H.264/AVC, MPEG-4
Audio AAC, AMR-NB, AMR-WB
mkv Video MPEG-2, MPEG-4, H.264/AVC, VP8, VP9, HEVC, AV1
Audio Dolby Digital, Dolby Digital Plus, AAC, PCM, MPEG-1 Layer I, II,
MPEG-1 Layer III (MP3)
ts
trp
tp
mts
Video H.264/AVC, MPEG-2, HEVC
Audio MPEG-1 Layer I, II, MPEG-1 Layer III (MP3), Dolby Digital, Dolby
Digital Plus, AAC, PCM, Dolby AC-4