FFV1
FFV1 copied to clipboard
FFmpeg
The FFV1 lossless video codec specification.
Just some administrative stuff: even if [we don't move](https://github.com/FFmpeg/FFV1/issues/161) to [IETF CELLAR working group](https://github.com/ietf-wg-cellar), it may make more sense to mimic the names of the repositories, i.e. `ffv1-specification` for being...
Hi, Not sure I'm at the right place to ask this question, but I would like to know if there is any implementation of FFV1 available for CUDA. If not,...
In particular, the interesting ones are YCoCg-R[0] and one based on PLHaar[1]. YCoCg-R is well known, but may have not existed when FFV1 was originally written and chose JPEG2000-RCT. PLHaar...
This pull request expands FFV1 to provide lossless compression to additional pixel formats by adding floating-point values support, and permits the lossless encoding and decoding of the following FFmpeg currently...
Using inversion should protect against added zero bytes before and after a CRC protected "block" of bytes. So this would update the spec accordingly for inversion in v4
There's already a dependency on a large part of the previous frame's decoding process for inter frames, and some very simple inter prediction would allow for good compression efficiency gains...
This is not to merge yet, but for discussion and of course if anyone wants to contribute/add to it
Work in progress, I would like to be sure there is an agreement about the path to use before adapting more things (quant_table_set_index_count...) Since this is a new `colorspace_type` value,...
I suggest that in FFV1 version 4 we implement the handling of more than three channels (usually YCbCr or RGB) or four channels (with an additional «alpha»). This would allow...
Today the data used for restoration (e.g. from infrared scanning) are often stored into the alpha channel, which is not a proper solution, as discussed in https://github.com/FFmpeg/FFV1/pull/31. At least proper...