Video
簡表
- Audio
- Lossy Compression
MP3
WMA
Vorbis
Opus
AAC
AC-3
DTS
- No Compression
PCM
LPCM
- Lossless Compression
FLAC
ALAC
MLP/Dolby TrueHD
DTS-HD
- Video
MPEG-1
MPEG-2
MPEG-4 (A)SP
H.264/MPEG-4 AVC
H.265/HEVC
VC-1/WMV
Real Video
Theora
Microsoft MPEG4 V2
VP8
VP9
MVC
AV1
- Subtitle
MicroDVD
MPEG-4 Timed Text
MPSub
SAMI
SubRip
SSA (SubStation Alpha)
SubViewer
Universal Subtitle Format
VobSub
XSUB
MJPEG (Motion JPEG)
VP8
Encoder 實做:
Decoder 實做:
VP9
Encoder 實做:
Decoder 實做:
文章:
H264 (AVC)
Encoder 實做:
Decoder 實做:
- OpenH264
by Cisco
H265 (HEVC)
Encoder 實做:
Decoder 實做:
Thor
Theora
Daala
AV1
由 AOMedia (Alliance for Open Media)開發的開放影像編碼格式, AOMedia 的成員包含 Amazon、AMD、ARM、Cisco、Google、Intel、IBM、Microsoft、Mozilla、Netflix、NVIDIA 等等。
Encoder 實做:
- rav1e - the fastest and safest AV1 encoder
基本上是由 Mozilla 的人在開發
用 Rust 撰寫,並且專注於提供比 libaom 更好的效能
Decoder 實做:
硬體支援:
Amphion - CS8142, Decoder, 4k 60fps
Dwango, Encoder, 720p 30fps
文章;
- (2018/01/30) AV1 Beats VP9 and HEVC on Quality, if You’ve Got Time, says Moscow State - Streaming Media Magazine
AV1 目前的壓縮品質比 VP9 和 HEVC 還好,但是執行速度還有待提升
(2018/04/10) AV1 beats x264 and libvpx-vp9 in practical use case