Ignite

module
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Published: Apr 17, 2024 License: BSD-2-Clause

README

Supported

  • y4m pipes
  • Frame tested support for 4:4:4, 4:2:2, 4:2:0. Probably 4:0:0 as well, untested.
  • Frame tested support for 8, 10, 12 bit depth. Probably 14 and 16 as well, untested.
  • VMAF tools
  • IVF reader
  • Frameserver
  • TODO: make list per encoder and decoder.

Bitdepth / subsampling Frame support matrix

Depth/Sampling 4:0:0 4:2:0 4:2:2 4:4:4
8-bit
10-bit ⚠️ ⚠️
12-bit ⚠️ ⚠️ ⚠️
14-bit
16-bit

Legend:

✅ = supported, tested regularly

⚠️ = supported, tested sparsely/manually

❔ = probably supported, not tested

❌ = unsupported

Formats supported

Format Decoder Encoder Notes
YUV4MPEG2 Supports most bitdepth and chroma subsampling. Library limited, not format limited.
Decoding via S.O.N.G/Ignite
H.264 Supports 8-bit and 10-bit; 4:0:0, 4:2:0, 4:2:2, 4:4:4 chroma subsampling.
Encoding via x264 into .h264 bitstream.
H.265
VP9
AV1 Supports 8-bit, 10-bit and 12-bit; 4:0:0, 4:2:0, 4:2:2, 4:4:4 chroma subsampling.
Decoding via dav1d from .ivf bitstream
Encoding via libaom-av1 into .ivf bitstream.

Additionally, a safe command-line call to ffmpeg can be made to decode into compatible YUV4MPEG2 via the integrated ffmpeg decoder.

TODO

  • No SAR/PAR handling.
  • No color primary / transfer / matrix coefficients handling.

Build tags

Several Golang build tags exist to change which features are included in the project.

disable_library_[library]

This tag disables support for the specified library dependencies.

Current implemented [library]: libdav1d, libaom, libx264, libvmaf.

Directories

Path Synopsis
cli
y4m
ivfreader
Package ivfreader implements IVF media container reader
Package ivfreader implements IVF media container reader

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