Updated: libvpx-utils/-doc/-devel/9 1.15 - WebM VP8/VP9 Video Graphics Codec SDK

[Cygwin libvpx Maintainer]

Google WebM VP8/VP9 video graphics codecs encoders and decoders
library reference implementation.

For more information see the project home page:

	https://github.com/webmproject/libvpx/

The following packages have been upgraded in the Cygwin distribution:

- libvpx-utils		1.15
- libvpx-doc		1.15
- libvpx-devel		1.15
- libvpx9		1.15

For changes since the last Cygwin release, see below or
/usr/share/doc/libvpx/CHANGELOG after installation:

	https://github.com/webmproject/libvpx/releases/tag/v1.15.0


2024-10-22	1.15	Wigeon Duck

This release includes new codec control for key frame filtering, more
Neon optimizations, improvements to RTC encoding and bug fixes.

- Upgrading:
  This release is ABI compatible with the previous release.

  Temporal filtering improvement that can be turned on with the new
  codec control VP9E_SET_KEY_FRAME_FILTERING, which gives 1+% BD-rate
  saving with minimal encoder time increase.

  libwebm is upgraded to libwebm-1.0.0.31-10-g3b63004

- Enhancement:
  Neon optimization speed up
    1-3% speed up across speed 5 to 10 for RTC
    3% speed up for speed 0 and 1 for VoD in standard bitdepth
    3% and 7% speed up for speed 0 and 1 respectively for VoD in high bitdepth
  Scene detection is allowed for all RTC speeds (>=5)
  Support profile guided optimizations

  Delta quantization parameters for UV channels for vp8 is supported in
  RTC rate control library

  Rate control parameters are reset and maximum QP is enforced on scene
  changes in SVC when there is no inter-layer prediction

- Bug fixes:
  Fix to Uninitialized scalar variable in `vp9_rd_pick_inter_mode_sb()`
  Fix to Integer-overflow in `resize_multistep`
  Fix to Heap-buffer-overflow in `vpx_sad64x64_avx2`
  Fix to Crash in `vpx_sad8x8_sse2`
  Fix to Assertion in `write_modes`
  Support profile guided optimizations
  Fix to Integer-overflow in `encode_frame_to_data_rate`
  Fix to Integer-overflow in `vp9_svc_check_reset_layer_rc_flag`
  Fix to core dump error from /usr/bin/tools/tiny_ssim --help
  Fix to use-of-uninitialized-value in `vp9_setup_tpl_stats`
  Fix to Undefined-shift in `vp9_cyclic_refresh_setup`
  Fix to redundant `&& __GNUC__` preproc check
  Fix to valgrind warning in EncodeAPI.OssFuzz69906
  Fix to Index-out-of-bounds in `vp8_rd_pick_inter_mode`
  Fix to Integer-overflow in `vp8_pick_frame_size`
  Fix to Use-of-uninitialized-value in `vpx_codec_peek_stream_info`
  Fix to log clutters with the message "Warning: Desired height too large"
  Fix to Integer-overflow in `vp9_svc_adjust_avg_frame_qindex`

  Fix to integer overflows caused by huge target bitrate, frame rate, or
  g_timebase numerator or denominator

  Fix to missing license headers
  Fix to build failure for Android Armv7
  Fix to integer overflows in image helpers
  Fix to Integer-overflow in `vp9_calc_iframe_target_size_one_pass_cbr`
  Fix to Heap-buffer-overflow in `vp9_pick_inter_mode`
  Fix to Segv in `vp9_multi_thread_tile_init`
  Fix to Use-of-uninitialized-value in `vp9_row_mt_sync_mem_dealloc`
  Fix to Crash in `mbloop_filter_vertical_edge_c`
  Fix to Check failed in CheckUnwind
  Fix to Heap-buffer-overflow in `write_modes_b` and `vpx_write`
  Fix to Possible signed integer overflow found in `vpx_codec_encode`
  Fix to build conflicts between Abseil and libaom/libvpx in Win ARM64 builds
  Fix to build failures on aarch64
  Fix to Data race in libvpx ARM NEON
  Fix to Heap-buffer-overflow in `scale_plane_1_to_2_phase_0`
  Fix to integer overflow in `encode_mb_row`
  Fix to Floating-point-exception in `vp8_pick_frame_size`
  Fix to Heap-buffer-overflow in `vp9_enc_setup_mi`
  Fix to build failure with --target=arm64-win64-vs17
  Fix to heap-buffer-overflow write in `vpx_img_read()`
  Fix to C vs armv8-linux-gcc encode mismatches for `y4m_360p_10bit_input`
  Fix to Null-dereference READ in `ml_predict_var_rd_partitioning`
  Fix to Heap-buffer-overflow in `vpx_scaled_2d_ssse3`
  Fix to Crash in `convolve_horiz`
  Fix to Ill in `vpx_scaled_2d_ssse3`
  Fix to Global-buffer-overflow in `cost_coeffs`