libaom v3.10.0 release

libaom v3.10.0 release candidate 2

libaom v3.10.0 release candidate 1

libaom v3.8.3 release

libaom v3.8.3 release candidate 2

libaom v3.9.1 release

libaom v3.8.3 release candidate 1

libaom v3.9.1 release candidate 2

libaom v3.9.1 release candidate 1

2024-04-09 v3.9.0

  This release includes new codec interfaces, compression efficiency and
  perceptual improvements, speedup for RTC for both video and screen content,
  and many bug fixes. This release is ABI compatible with the previous release.

  - New Features
    * New codec control
      * AV1E_SET_SVC_FRAME_DROP_MODE is added to configure the SVC encoder to
        only drop spatial layers or the whole superframe.
    * Active Map is fixed and tested for RTC.
    * CONFIG_QUANT_MATRIX is added to disable quantization matrices when aom
      decoder is disabled with CONFIG_AV1_DECODER. Reduces ~10% binary size when
      both are disabled.
    * libwebm is updated to libwebm-1.0.0.31-1-gaffd7f4.
  - Compression Efficiency Improvements
    * RTC encoding improvements
      * 1-2% BD-rate gain for screen content with temporal layers; 5% BD-rate
        gain on scrolling content.
  - Perceptual Quality Improvements
    * For RTC screen content
      * Reduced color artifacts for RTC screen content
      * Visual quality improved for scene changes for SVC with quality layers.
      * Removed visual artifacts for speed 11
  - Speedups:
    * RTC Speed 11: aggressive speedup setting added for video mode,
      resolutions <= VGA: ~30% faster than speed 10.
    * 5-9% speed up for high bit-depth encoding with good mode on Arm, half of
      which comes from SVE/SVE2 optimizations.
  - Other improvements
    * Further improvements to global motion estimation.
    * Documented minimum required SIMD support: SSE4.1 on x86, Neon on Arm.
    * Remove unneeded SIMD functions, saving >100 KiB from binary size.
    * Cleaned up and improved pattern_search.
    * Added end-to-end c vs SIMD bit-exactness test.
    * Added config flag to calc psnr using libvmaf peak: use a slightly
      different peak value for PSNR (1020 and 2040 for 10- and 12-bit)
  - Bug Fixes
    * Fuzzing bug fixes
      * b/329485898 Null-dereference WRITE in av1_cdef_frame_mt
      * b/329810149 Null-dereference WRITE in av1_cdef_copy_sb8_16
      * b/329813868 Ill in av1_cdef_frame_mt
      * chromium:327882824 Null-dereference WRITE in av1_cdef_init_fb_row
      * b/330014723 Null-dereference WRITE in
        cdef_copy_rect8_16bit_to_16bit_avx2
      * b/310455204 Null-dereference WRITE in prepare_enc_workers
      * b/314858909 Heap-buffer-overflow in aom_variance64x64_avx2
      * oss-fuzz:67132 av1_dec_fuzzer: ASSERT: (pbi->tile_count_minus_1 + 1) <=
        (pbi->output_frame_width_in_tiles_minus_1 + 1)
      * oss-fuzz:67058 av1_dec_fuzzer: ASSERT: i == 0 || tile_w == *w
      * oss-fuzz:67161 av1_dec_fuzzer: ASSERT: i == 0 || tile_h == *h
      * oss-fuzz:67059 av1_dec_fuzzer: Crash in mem_get_varsize
      * oss-fuzz:67162 av1_dec_fuzzer: Use-of-uninitialized-value in
        od_ec_decode_bool_q15
      * oss-fuzz:67184 av1_dec_fuzzer: Heap-buffer-overflow in od_ec_dec_init
      * oss-fuzz:67216 av1_dec_fuzzer: Heap-buffer-overflow in
        od_ec_dec_normalize
      * oss-fuzz:67055 av1_dec_fuzzer: Heap-buffer-overflow in
        get_ls_tile_buffers
    * libaom library
      * aomedia:3510 Large value of duration could cause encoder overflow
      * chromium:328105513 Fix build conflicts between Abseil and libaom/libvpx
        in Win ARM64 builds
      * aomedia:3544 AV1/SharpnessTestLarge.SharpnessPSNRTest failures after
        59c592bb8
      * aomedia:3531 Exception encountered with PSNR calculation
      * aomedia:3541 Can not compile correctly by CYGWIN
      * chromium:41482688 heap-buffer-overflow write in vpx_img_read()
        (tools_common.c) with VPX_IMG_FMT_NV12
      * aomedia:3521 Assertion failures on Arm in CNNTest.* in
        av1_cnn_convolve_no_maxpool_padding_valid_2x2_neon and
        av1_cnn_convolve_no_maxpool_padding_valid_5x5_neon
      * aomedia:3486 C vs NEON mismatch in AV1 encoder
      * aomedia:3536 Over write in highbd_dr_prediction_z3_upsample1_neon()
      * aomedia:3276 Significant progress on ensuring all allocations are
        checked
      * aomedia:3491 heap-buffer-overflow encoding frames of size 256x256,
        512x512 in good quality usage mode using 4 threads
      * aomedia:3322 PSNR number discrepancy
      * aomedia:3493 Cmake generates garbage symbols for libaom_srcs.gni
      * aomedia:3478 GCC 12.2.0 emits a -Wstringop-overflow warning on
        aom/av1/encoder/motion_search_facade.c
      * aomedia:3484 C vs NEON mismatch in AV1 encoder for high-bitdepth case

libaom v3.9.0 release candidate 1

Release v3.8.2

2024-03-08 v3.8.2
  This release includes several bug fixes. This release is ABI
  compatible with the last release. See
  https://aomedia.googlesource.com/aom/+log/v3.8.1..v3.8.2 for all the
  commits in this release.

  - Bug Fixes
    * aomedia:3523: SIGFPE in av1_twopass_postencode_update()
      pass2_strategy.c:4261.
    * aomedia:3535, b/317646516: Over reads in aom_convolve_copy_neon().
    * aomedia:3543: invalid feature modifier when compiling
      aom_dsp/arm/aom_convolve8_neon_i8mm.c on Debian 10 with arm64
      architecture.
    * aomedia:3545: Failed to parse configurations due to inconsistent
      elements between two arrays "av1_ctrl_args" and "av1_arg_ctrl_map"
      in aomenc.c.
    * oss-fuzz:66474, b/319140742: Integer-overflow in search_wiener.
    * Zero initialize an array in cdef search.

Bug: aomedia:3547

libaom v3.8.2 release candidate 1

Bug: aomedia:3547

libaom 3.8.1 release

2024-01-17 v3.8.1
  This release includes several bug fixes. This release is ABI
  compatible with the last release. See
  https://aomedia.googlesource.com/aom/+log/v3.8.0..v3.8.1 for all the
  commits in this release.

  - Bug Fixes
    * aomedia:3520: get_cubic_kernel_dbl: Assertion `0 <= x && x < 1'
      failed.
    * aomedia:3526: alloc_compressor_data() is called during every
      aom_codec_control() call on the encoder.
    * aomedia:3527: aom/av1/encoder/mcomp.c:1810: av1_full_pixel_search:
      Assertion `ms_params->ms_buffers.ref->width ==
      ms_params->ms_buffers.src->width' failed.
    * aomedia:3534: libaom encoder crashed by AOM_USAGE_ALL_INTRA and
      AOM_EFLAG_NO_REF_LAST flags.
    * b/310455204: Recreate workers if necessary.
    * b/310548198: Update frame size in actual encoding.
    * b/314858909: Do not use adaptive error estimate.
    * Fix a hang of cmake on arm64 macOS with cmake 3.27.0 or later.

libaom v3.7.2 release

2024-01-18 v3.7.2
  This release includes three bug fixes. This release is ABI compatible
  with the last release. See
  https://aomedia.googlesource.com/aom/+log/v3.7.1..v3.7.2 for all the
  commits in this release.

  - Bug Fixes
    * aomedia:3520: get_cubic_kernel_dbl: Assertion `0 <= x && x < 1'
      failed.
    * aomedia:3526: alloc_compressor_data() is called during every
      aom_codec_control() call on the encoder. Note that this partially
      reverts the fix for bug aomedia:3349.
    * b/310457427 and b/310766628: Only use rec_sse in CBR mode.
    * Fix a hang of cmake on arm64 macOS with cmake 3.27.0 or later.

libaom 3.8.1 release candidate 1

Bug: aomedia:3540

libaom 3.7.2 release candidate 1

Bug: aomedia:3539

Release v3.8.0 Jelly Bee

2023-11-30 v3.8.0
  This release includes new codec interfaces, compression efficiency and
  perceptual improvements, speedup and memory optimizations and many bug
  fixes. This release is ABI compatible with the last release.

  - New Features
    * New codec controls:
      * AV1E_SET_MAX_CONSEC_FRAME_DROP_CBR: Set the maximum number of
        consecutive frame drops allowed for the frame dropper in 1 pass
        CBR mode.
    * Run-time CPU feature detection for all Arm platforms:
      CRC, DotProd, I8MM and SVE CPU feature presence is detected at run
      time and code paths making use of these features are selected
      dynamically. These code paths provide meaningful performance gains
      for standard bitdepth RTC and VoD encoding: up to 10% and 20%
      respectively, over the Armv8.0-A baseline build.
    * RTC: Frame-dropper support added to the rate control library.
    * RTC Rate control improvements for low bitrate and for SVC.

  - Compression Efficiency Improvements
    * Improved accuracy of cost estimation for loop restoration and
      global motion.
    * Improved selection of loop restoration unit size - full search up
      to (non-realtime) speed 2, retuned static selection at higher
      speeds.
    * RTC Screen content mode: 3-5% bdrate gains across speeds 7 - 10.
    * Good-quality mode: 0.2 - 0.5% bdrate gains across speeds 1 - 4.

  - Perceptual Quality Improvements
    * RTC Screen: Improved visual quality for scrolling.
    * RTC: Improved color quality for both screen and video mode.

  - Speedup and Memory Optimizations
    * Good-quality, single-thread encoder speedups:
      o 15% improvement for speed 5.
      o 12% improvement for speed 6.
    * Arm standard bitdepth VoD (--good):
      o 8% speedup for speeds 0 and 1.
      o 20% speedup for speed 2.
      o 27% speedup for speed 3.
      o 30% speedup for speed 4.
      o 38% speedup for speeds 5 and 6.
    * Arm high bitdepth VoD (--good):
      o 206% speedup for speeds 0 and 1.
      o 180% speedup for speed 2.
      o 51% speedup for speeds 3 and 4.
      o 68% speedup for speed 5.
      o 72% speedup for speed 6.
    * RTC Screen content: 2-6% speedup across speeds 7-10.
    * RTC: 2-3% speedup for temporal layers.
    * RTC: Speedups to reference scaling in nonrd pickmode.
    * Good-quality mode: Simplified global motion estimation, saving
      ~1200 lines of code and 1KB of tables while improving quality.

  - Bug Fixes
    * Fixes to improve libaom stability in case of memory allocation
      failures.
    * Fixes to SIMD functions (x86 AVX2/SSE2 and ARM Neon).
    * b/310457427, b/310766628: Bug fixes to only use rec_sse in CBR
      mode.

libaom 3.8.0 release candidate 1

Bug: aomedia:3515

libaom 3.7.1

2023-11-17 v3.7.1
  This release includes several bug fixes. This release is ABI
  compatible with the last release. See
  https://aomedia.googlesource.com/aom/+log/v3.7.0..v3.7.1 for all the
  commits in this release.

  - Bug Fixes
    * aomedia:3349: heap overflow when increasing resolution
    * aomedia:3478: GCC 12.2.0 emits a -Wstringop-overflow warning on
      aom/av1/encoder/motion_search_facade.c
    * aomedia:3489: Detect encoder and image high bit depth mismatch
    * aomedia:3491: heap-buffer-overflow on frame size change
    * b/303023614:  Segfault at encoding time for high bit depth images

Bug: aomedia:3513