Josh Holmer authored 6 years ago and Thomas Daede committed 6 years ago

`write` may not process the entire buffer, so if using it, it is
recommended to handle the return value (number of bytes written), or
strange runtime errors may occur. Since we are clearing the buffers
immediately after, it seems the desired behavior is to write the entire
buffer, for which `write_all` will guarantee correct behavior.

Josh Holmer authored 6 years ago and Thomas Daede committed 6 years ago

It is more idiomatic in Rust to omit the `return` keyword when possible.
This is a purely stylistic lint and has no effect on performance.

It is currently used for the extended tests.

Fixes #651 and Completes #630.

They are already called by the API.

Luca Barbato authored 6 years ago and Thomas Daede committed 6 years ago

And restrict it to u64 instead of usize.

They take slightly more than 1 minute to execute,
do not twice the normal tests while at it.

Reduces encoder runtime by about 5% at default speed setting

The inputs are generated with dav1d layout.

Address #686

Also, add simple reference tests for u8 prediction.

* Generate downsampled versions of input frames and store them with reference frames

* Add hierarchical ME, where initial ME is done using 4x subsampled 64x64 blocks. MVs are refined using 2x subsampled 32x32 blocks. In the refinement step, search is done around MV found for colocated 64x64 block, and also around MVs found for neighboring 64x64 blocks

Use transform domain distortion during RDO-based mode decision.
- Turn on tx-domain distortion when speed >= 1.
-  For CfL mode, use pixel domain distortion since reconstructed luma pixels are required for CfL mode of chroma channels.

For default speed = 3, there is a regression of 0.35% PSNR bd-rate increase on AWCY.

  PSNR | PSNR Cb | PSNR Cr | PSNR HVS |   SSIM  | MS SSIM | CIEDE 2000
0.3440 |  0.4580   |  0.3700   |   0.2730     | 0.2714 |  0.2616    |     0.5526

Frame reordering should be applied when low_latency is false

OBUs of reordered frames are combined with OBUs of a non-reordered
frame into a single packet. May address #674

As a simple example, call ipred_dc_128.

Support linking asm on macOS; the linker trips over a dependency on
src/tables.c in mc.asm if we include it.

Avoid linking asm with MSVC for now as static library not found.

* Enable coding of compound mode

* Modify inter prediction function to support compound mode

* Call motion estimation function early and store results for use by compound mode

* Add compound as an RDO candidate

* Increase frame coding structure pyramid size

* Make ME search range dependent on frame distance

The nasm provided by the current travis distribution is too old.

Add a generic bound for u8 and u16 and convert `pred_dc`, `pred_dc_128`,
`pred_dc_left`, `pred_dc_top`, `pred_h`, `pred_v` and `pred_paeth`.

Fixes issue #653.