| 2022-08-31 v3.5.0 | |
| This release is ABI compatible with the last one, including speedup and memory | |
| optimizations, and new APIs and features. | |
| - New Features | |
| * Support for frame parallel encode for larger number of threads. --fp-mt | |
| flag is available for all build configurations. | |
| * New codec control AV1E_GET_NUM_OPERATING_POINTS | |
| - Speedup and Memory Optimizations | |
| * Speed-up multithreaded encoding for good quality mode for larger number of | |
| threads through frame parallel encoding: | |
| o 30-34% encode time reduction for 1080p, 16 threads, 1x1 tile | |
| configuration (tile_rows x tile_columns) | |
| o 18-28% encode time reduction for 1080p, 16 threads, 2x4 tile | |
| configuration | |
| o 18-20% encode time reduction for 2160p, 32 threads, 2x4 tile | |
| configuration | |
| * 16-20% speed-up for speed=6 to 8 in still-picture encoding mode | |
| * 5-6% heap memory reduction for speed=6 to 10 in real-time encoding mode | |
| * Improvements to the speed for speed=7, 8 in real-time encoding mode | |
| * Improvements to the speed for speed=9, 10 in real-time screen encoding | |
| mode | |
| * Optimizations to improve multi-thread efficiency in real-time encoding | |
| mode | |
| * 10-15% speed up for SVC with temporal layers | |
| * SIMD optimizations: | |
| o Improve av1_quantize_fp_32x32_neon() 1.05x to 1.24x faster | |
| o Add aom_highbd_quantize_b{,_32x32,_64x64}_adaptive_neon() 3.15x to 5.6x | |
| faster than "C" | |
| o Improve av1_quantize_fp_64x64_neon() 1.17x to 1.66x faster | |
| o Add aom_quantize_b_avx2() 1.4x to 1.7x faster than aom_quantize_b_avx() | |
| o Add aom_quantize_b_32x32_avx2() 1.4x to 2.3x faster than | |
| aom_quantize_b_32x32_avx() | |
| o Add aom_quantize_b_64x64_avx2() 2.0x to 2.4x faster than | |
| aom_quantize_b_64x64_ssse3() | |
| o Add aom_highbd_quantize_b_32x32_avx2() 9.0x to 10.5x faster than | |
| aom_highbd_quantize_b_32x32_c() | |
| o Add aom_highbd_quantize_b_64x64_avx2() 7.3x to 9.7x faster than | |
| aom_highbd_quantize_b_64x64_c() | |
| o Improve aom_highbd_quantize_b_avx2() 1.07x to 1.20x faster | |
| o Improve av1_quantize_fp_avx2() 1.13x to 1.49x faster | |
| o Improve av1_quantize_fp_32x32_avx2() 1.07x to 1.54x faster | |
| o Improve av1_quantize_fp_64x64_avx2() 1.03x to 1.25x faster | |
| o Improve av1_quantize_lp_avx2() 1.07x to 1.16x faster | |
| - Bug fixes including but not limited to | |
| * aomedia:3206 Assert that skip_width > 0 for deconvolve function | |
| * aomedia:3278 row_mt enc: Delay top-right sync when intraBC is enabled | |
| * aomedia:3282 blend_a64_*_neon: fix bus error in armv7 | |
| * aomedia:3283 FRAME_PARALLEL: Propagate border size to all cpis | |
| * aomedia:3283 RESIZE_MODE: Fix incorrect strides being used for motion | |
| search | |
| * aomedia:3286 rtc-svc: Fix to dynamic_enable spatial layers | |
| * aomedia:3289 rtc-screen: Fix to skipping inter-mode test in nonrd | |
| * aomedia:3289 rtc-screen: Fix for skip newmv on flat blocks | |
| * aomedia:3299 Fix build failure with CONFIG_TUNE_VMAF=1 | |
| * aomedia:3296 Fix the conflict --enable-tx-size-search=0 with nonrd mode | |
| --enable-tx-size-search will be ignored in non-rd pick mode | |
| * aomedia:3304 Fix off-by-one error of max w/h in validate_config | |
| * aomedia:3306 Do not use pthread_setname_np on GNU/Hurd | |
| * aomedia:3325 row-multithreading produces invalid bitstream in some cases | |
| * chromium:1346938, chromium:1338114 | |
| * compiler_flags.cmake: fix flag detection w/cmake 3.17-3.18.2 | |
| * tools/*.py: update to python3 | |
| * aom_configure.cmake: detect PIE and set CONFIG_PIC | |
| * test/simd_cmp_impl: use explicit types w/CompareSimd* | |
| * rtc: Fix to disable segm for aq-mode=3 | |
| * rtc: Fix to color_sensitivity in variance partition | |
| * rtc-screen: Fix bsize in model rd computation for intra chroma | |
| * Fixes to ensure the correct behavior of the encoder algorithms (like | |
| segmentation, computation of statistics, etc.) | |
| 2022-06-17 v3.4.0 | |
| This release includes compression efficiency and perceptual quality | |
| improvements, speedup and memory optimizations, and some new features. | |
| There are no ABI or API breaking changes in this release. | |
| - New Features | |
| * New --dist-metric flag with "qm-psnr" value to use quantization | |
| matrices in the distortion computation for RD search. The default | |
| value is "psnr". | |
| * New command line option "--auto-intra-tools-off=1" to make | |
| all-intra encoding faster for high bit rate under | |
| "--deltaq-mode=3" mode. | |
| * New rate control library aom_av1_rc for real-time hardware | |
| encoders. Supports CBR for both one spatial layer and SVC. | |
| * New image format AOM_IMG_FMT_NV12 can be used as input to the | |
| encoder. The presence of AOM_IMG_FMT_NV12 can be detected at | |
| compile time by checking if the macro AOM_HAVE_IMG_FMT_NV12 is | |
| defined. | |
| * New codec controls for the encoder: | |
| o AV1E_SET_AUTO_INTRA_TOOLS_OFF. Only in effect if | |
| --deltaq-mode=3. | |
| o AV1E_SET_RTC_EXTERNAL_RC | |
| o AV1E_SET_FP_MT. Only supported if libaom is built with | |
| -DCONFIG_FRAME_PARALLEL_ENCODE=1. | |
| o AV1E_GET_TARGET_SEQ_LEVEL_IDX | |
| * New key-value pairs for the key-value API: | |
| o --auto-intra-tools-off=0 (default) or 1. Only in effect if | |
| --deltaq-mode=3. | |
| o --strict-level-conformance=0 (default) or 1 | |
| o --fp-mt=0 (default) or 1. Only supported if libaom is built | |
| with -DCONFIG_FRAME_PARALLEL_ENCODE=1. | |
| * New aomenc options (not supported by the key-value API): | |
| o --nv12 | |
| - Compression Efficiency Improvements | |
| * Correctly calculate SSE for high bitdepth in skip mode, 0.2% to | |
| 0.6% coding gain. | |
| * RTC at speed 9/10: BD-rate gain of ~4/5% | |
| * RTC screen content coding: many improvements for real-time screen | |
| at speed 10 (quality, speedup, and rate control), up to high | |
| resolutions (1080p). | |
| * RTC-SVC: fixes to make intra-only frames work for spatial layers. | |
| * RTC-SVC: quality improvements for temporal layers. | |
| * AV1 RT: A new passive rate control strategy for screen content, an | |
| average of 7.5% coding gain, with some clips of 20+%. The feature | |
| is turned off by default due to higher bit rate variation. | |
| - Perceptual Quality Improvements | |
| * RTC: Visual quality improvements for high speeds (9/10) | |
| * Improvements in coding quality for all intra mode | |
| - Speedup and Memory Optimizations | |
| * ~10% speedup in good quality mode encoding. | |
| * ~7% heap memory reduction in good quality encoding mode for speed | |
| 5 and 6. | |
| * Ongoing improvements to intra-frame encoding performance on Arm | |
| * Faster encoding speed for "--deltaq-mode=3" mode. | |
| * ~10% speedup for speed 5/6, ~15% speedup for speed 7/8, and | |
| ~10% speedup for speed 9/10 in real time encoding mode | |
| * ~20% heap memory reduction in still-picture encoding mode for | |
| 360p-720p resolutions with multiple threads | |
| * ~13% speedup for speed 6 and ~12% speedup for speed 9 in | |
| still-picture encoding mode. | |
| * Optimizations to improve multi-thread efficiency for still-picture | |
| encoding mode. | |
| - Bug Fixes | |
| * b/204460717: README.md: replace master with main | |
| * b/210677928: libaom disable_order is surprising for | |
| max_reference_frames=3 | |
| * b/222461449: -DCONFIG_TUNE_BUTTERAUGLI=1 broken | |
| * b/227207606: write_greyscale writes incorrect chroma in highbd | |
| mode | |
| * b/229955363: Integer-overflow in linsolve_wiener | |
| * https://crbug.com/aomedia/2032 | |
| * https://crbug.com/aomedia/2397 | |
| * https://crbug.com/aomedia/2563 | |
| * https://crbug.com/aomedia/2815 | |
| * https://crbug.com/aomedia/3009 | |
| * https://crbug.com/aomedia/3018 | |
| * https://crbug.com/aomedia/3045 | |
| * https://crbug.com/aomedia/3101 | |
| * https://crbug.com/aomedia/3130 | |
| * https://crbug.com/aomedia/3173 | |
| * https://crbug.com/aomedia/3184 | |
| * https://crbug.com/aomedia/3187 | |
| * https://crbug.com/aomedia/3190 | |
| * https://crbug.com/aomedia/3195 | |
| * https://crbug.com/aomedia/3197 | |
| * https://crbug.com/aomedia/3201 | |
| * https://crbug.com/aomedia/3202 | |
| * https://crbug.com/aomedia/3204 | |
| * https://crbug.com/aomedia/3205 | |
| * https://crbug.com/aomedia/3207 | |
| * https://crbug.com/aomedia/3208 | |
| * https://crbug.com/aomedia/3209 | |
| * https://crbug.com/aomedia/3213 | |
| * https://crbug.com/aomedia/3214 | |
| * https://crbug.com/aomedia/3219 | |
| * https://crbug.com/aomedia/3222 | |
| * https://crbug.com/aomedia/3223 | |
| * https://crbug.com/aomedia/3225 | |
| * https://crbug.com/aomedia/3226 | |
| * https://crbug.com/aomedia/3228 | |
| * https://crbug.com/aomedia/3232 | |
| * https://crbug.com/aomedia/3236 | |
| * https://crbug.com/aomedia/3237 | |
| * https://crbug.com/aomedia/3238 | |
| * https://crbug.com/aomedia/3240 | |
| * https://crbug.com/aomedia/3243 | |
| * https://crbug.com/aomedia/3244 | |
| * https://crbug.com/aomedia/3246 | |
| * https://crbug.com/aomedia/3248 | |
| * https://crbug.com/aomedia/3250 | |
| * https://crbug.com/aomedia/3251 | |
| * https://crbug.com/aomedia/3252 | |
| * https://crbug.com/aomedia/3255 | |
| * https://crbug.com/aomedia/3257 | |
| * https://crbug.com/aomedia/3259 | |
| * https://crbug.com/aomedia/3260 | |
| * https://crbug.com/aomedia/3267 | |
| * https://crbug.com/aomedia/3268 | |
| * https://crbug.com/aomedia/3269 | |
| * https://crbug.com/aomedia/3276 | |
| * https://crbug.com/aomedia/3278 | |
| * https://crbug.com/chromium/1290068 | |
| * https://crbug.com/chromium/1303237 | |
| * https://crbug.com/chromium/1304990 | |
| * https://crbug.com/chromium/1321141 | |
| * https://crbug.com/chromium/1321388 | |
| * https://crbug.com/oss-fuzz/44846 | |
| * https://crbug.com/oss-fuzz/44856 | |
| * https://crbug.com/oss-fuzz/44862 | |
| * https://crbug.com/oss-fuzz/44904 | |
| * https://crbug.com/oss-fuzz/45056 | |
| 2022-01-28 v3.3.0 | |
| This release includes compression efficiency and perceptual quality | |
| improvements, speedup and memory optimizations, some new features, and | |
| several bug fixes. | |
| - New Features | |
| * AV1 RT: Introducing CDEF search level 5 | |
| * Changed real time speed 4 to behave the same as real time speed 5 | |
| * Add --deltaq-strength | |
| * rtc: Allow scene-change and overshoot detection for svc | |
| * rtc: Intra-only frame for svc | |
| * AV1 RT: Option 2 for codec control AV1E_SET_ENABLE_CDEF to disable | |
| CDEF on non-ref frames | |
| * New codec controls AV1E_SET_LOOPFILTER_CONTROL and | |
| AOME_GET_LOOPFILTER_LEVEL | |
| * Improvements to three pass encoding | |
| - Compression Efficiency Improvements | |
| * Overall compression gains: 0.6% | |
| - Perceptual Quality Improvements | |
| * Improves the perceptual quality of high QP encoding for delta-q mode 4 | |
| * Auto select noise synthesis level for all intra | |
| - Speedup and Memory Optimizations | |
| * Added many SSE2 optimizations. | |
| * Good quality 2-pass encoder speedups: | |
| o Speed 2: 9% | |
| o Speed 3: 12.5% | |
| o Speed 4: 8% | |
| o Speed 5: 3% | |
| o Speed 6: 4% | |
| * Real time mode encoder speedups: | |
| o Speed 5: 2.6% BDRate gain, 4% speedup | |
| o Speed 6: 3.5% BDRate gain, 4% speedup | |
| o Speed 9: 1% BDRate gain, 3% speedup | |
| o Speed 10: 3% BDRate gain, neutral speedup | |
| * All intra encoding speedups (AVIF): | |
| o Single thread - speed 6: 8% | |
| o Single thread - speed 9: 15% | |
| o Multi thread(8) - speed 6: 14% | |
| o Multi thread(8) - speed 9: 34% | |
| - Bug Fixes | |
| * Issue 3163: Segmentation fault when using --enable-keyframe-filtering=2 | |
| * Issue 2436: Integer overflow in av1_warp_affine_c() | |
| * Issue 3226: armv7 build failure due to gcc-11 | |
| * Issue 3195: Bug report on libaom (AddressSanitizer: heap-buffer-overflow) | |
| * Issue 3191: Bug report on libaom (AddressSanitizer: SEGV on unknown | |
| address) | |
| * Issue 3176: Some SSE2/SADx4AvgTest.* tests fail on Windows | |
| * Issue 3175: Some SSE2/SADSkipTest.* tests fail on Windows | |
| 2021-10-13 v3.2.0 | |
| This release includes compression efficiency and perceptual quality | |
| improvements, speedup and memory optimizations, as well as some new | |
| features. | |
| - New Features | |
| * Introduced speeds 7, 8, and 9 for all intra mode. | |
| * Introduced speed 10 for real time mode. | |
| * Introduced an API that allows external partition decisions. | |
| * SVC: added support for compound prediction. | |
| * SVC: added support for fixed SVC modes. | |
| - Compression Efficiency Improvements | |
| * Intra-mode search improvement. | |
| * Improved real time (RT) mode BDrate savings by ~5% (RT speed 5) | |
| and ~12% (RT speed 6). The improvement was measured on the video | |
| conference set. | |
| * Improved real time mode for nonrd path (speed 7, 8, 9): BDrate | |
| gains of ~3-5%. | |
| * Rate control and RD adjustments based on ML research in VP9. | |
| Gains of ~0.5-1.0% for HD. | |
| - Perceptual Quality Improvements | |
| * Added a new mode --deltaq-mode=3 to improve perceptual quality | |
| based on a differential contrast model for still images. | |
| * Added a new mode --deltaq-mode=4 to improve perceptual quality | |
| based on user rated cq_level data set for still images. | |
| * Weighting of some intra mode and partition size choices to better | |
| manage and retain texture. | |
| - Speedup and Memory Optimizations | |
| * Further improved 2-pass good quality encoder speed: | |
| o Speed 2 speedup: 18% | |
| o Speed 3 speedup: 22% | |
| o Speed 4 speedup: 37% | |
| o Speed 5 speedup: 30% | |
| o Speed 6 speedup: 20% | |
| * Optimized the real time encoder (measured on the video conference | |
| set): | |
| o RT speed 5 speedup: 110% | |
| o RT speed 6 speedup: 77% | |
| - Bug Fixes | |
| * Issue 3069: Fix one-pass mode keyframe placement off-by-one error. | |
| * Issue 3156: Fix a bug in av1_quantize_lp AVX2 optimization. | |
| 2021-09-29 v3.1.3 | |
| This release includes several bug fixes. | |
| - Bug fixes: | |
| The following four cmake changes should help the people building | |
| libaom using MSVC. | |
| 1. exports: use CMAKE_SHARED_LIBRARY_PREFIX to determine lib name | |
| https://aomedia-review.googlesource.com/c/aom/+/142342 | |
| 2. aom_install: Install lib dlls to bindir | |
| https://aomedia-review.googlesource.com/c/aom/+/146546 | |
| 3. aom_install: use relpath for install | |
| https://aomedia-review.googlesource.com/c/aom/+/146550 | |
| 4. aom_install: don't exclude msvc from install | |
| https://aomedia-review.googlesource.com/c/aom/+/146547 | |
| aom/aom_encoder.h: remove configure option reference | |
| https://aomedia-review.googlesource.com/c/aom/+/146743 | |
| Issue 3113: Tests for detecting chroma subsampling in | |
| av1_copy_and_extend_frame() do not work when y_width or y_height is | |
| 1 | |
| Issue 3115: image2yuvconfig() should calculate uv_crop_width and | |
| uv_crop_height from y_crop_width and y_crop_height | |
| Issue 3140: rc_overshoot_pct is documented as having a range of | |
| 0-1000, but is range checked against 0-100 | |
| Issue 3147: Build failure on Apple M1 arm64 | |
| 2021-07-20 v3.1.2 | |
| This release includes several bug fixes. | |
| - Bug fixes: | |
| exports.cmake: use APPLE and WIN32 and use def for mingw-w64 | |
| https://aomedia-review.googlesource.com/c/aom/+/139882 | |
| Issue 2993: Incorrect spatial_id when decoding base layer of | |
| multi-layer stream | |
| Issue 3080: Chroma Resampling by Encoder on Y4M Inputs Files Tagged | |
| as C420mpeg2 | |
| Issue 3081: Use of uninitialized value $version_extra in | |
| concatenation (.) or string at aom/build/cmake/version.pl line 88. | |
| 2021-06-08 v3.1.1 | |
| This release includes several bug fixes. | |
| - Bug fixes: | |
| Issue 2965: Cherry-picked the following four commits for the | |
| tune=butteraugli mode. | |
| 1. Add libjxl to pkg_config if enabled: | |
| https://aomedia-review.googlesource.com/c/aom/+/136044 | |
| 2. Declare set_mb_butteraugli_rdmult_scaling static: | |
| https://aomedia-review.googlesource.com/c/aom/+/134506 | |
| 3. Add color range detection in tune=butteraugli mode: | |
| https://aomedia-review.googlesource.com/c/aom/+/135521 | |
| 4. Enable tune=butteraugli in all-intra mode: | |
| https://aomedia-review.googlesource.com/c/aom/+/136082 | |
| Issue 3021: Fix vmaf model initialization error when not set to | |
| tune=vmaf | |
| Issue 3050: Compilation fails with -DCONFIG_TUNE_VMAF=1 | |
| Issue 3054: Consistent crash on near-static screen content, keyframe | |
| related | |
| 2021-05-03 v3.1.0 | |
| This release adds an "all intra" mode to the encoder, which significantly | |
| speeds up the encoding of AVIF still images at speed 6. | |
| - Upgrading: | |
| All intra mode for encoding AVIF still images and AV1 all intra videos: | |
| AOM_USAGE_ALL_INTRA (2) can be passed as the 'usage' argument to | |
| aom_codec_enc_config_default(). | |
| New encoder control IDs added: | |
| - AV1E_SET_ENABLE_DIAGONAL_INTRA: Enable diagonal (D45 to D203) intra | |
| prediction modes (0: false, 1: true (default)). Also available as | |
| "enable-diagonal-intra" for the aom_codec_set_option() function. | |
| New aom_tune_metric enum value: AOM_TUNE_BUTTERAUGLI. The new aomenc option | |
| --tune=butteraugli was added to optimize the encoder's perceptual quality by | |
| optimizing the Butteraugli metric. Install libjxl (JPEG XL) and then pass | |
| -DCONFIG_TUNE_BUTTERAUGLI=1 to the cmake command to enable it. | |
| Addition of support for libvmaf 2.x. | |
| - Enhancements: | |
| Heap memory consumption for encoding AVIF still images is significantly | |
| reduced. | |
| - Bug fixes: | |
| Issue 2601: third_party/libaom fails licensecheck | |
| Issue 2950: Conditional expression for rc->this_key_frame_forced is always | |
| true in find_next_key_frame() | |
| Issue 2988: "make install" installs the aom.h header twice | |
| Issue 2992: Incorrectly printing the temporal_id twice in dump_obu tool | |
| Issue 2998: | |
| Issue 2999: | |
| Issue 3000: | |
| 2021-02-24 v3.0.0 | |
| This release includes compression efficiency improvement, speed improvement | |
| for realtime mode, as well as some new APIs. | |
| - Upgrading: | |
| Support for PSNR calculation based on stream bit-depth. | |
| New encoder control IDs added: | |
| - AV1E_SET_ENABLE_RECT_TX | |
| - AV1E_SET_VBR_CORPUS_COMPLEXITY_LAP | |
| - AV1E_GET_BASELINE_GF_INTERVAL | |
| - AV1E_SET_ENABLE_DNL_DENOISING | |
| New decoder control IDs added: | |
| - AOMD_GET_FWD_KF_PRESENT | |
| - AOMD_GET_FRAME_FLAGS | |
| - AOMD_GET_ALTREF_PRESENT | |
| - AOMD_GET_TILE_INFO | |
| - AOMD_GET_SCREEN_CONTENT_TOOLS_INFO | |
| - AOMD_GET_STILL_PICTURE | |
| - AOMD_GET_SB_SIZE | |
| - AOMD_GET_SHOW_EXISTING_FRAME_FLAG | |
| - AOMD_GET_S_FRAME_INFO | |
| New aom_tune_content enum value: AOM_CONTENT_FILM | |
| New aom_tune_metric enum value: AOM_TUNE_VMAF_NEG_MAX_GAIN | |
| Coefficient and mode update can be turned off via | |
| AV1E_SET_{COEFF/MODE}_COST_UPD_FREQ. | |
| New key & value API added, available with aom_codec_set_option() function. | |
| Scaling API expanded to include 1/4, 3/4 and 1/8. | |
| - Enhancements: | |
| Better multithreading performance with realtime mode. | |
| New speed 9 setting for faster realtime encoding. | |
| Smaller binary size with low bitdepth and realtime only build. | |
| Temporal denoiser and its optimizations on x86 and Neon. | |
| Optimizations for scaling. | |
| Faster encoding with speed settings 2 to 6 for good encoding mode. | |
| Improved documentation throughout the library, with function level | |
| documentation, tree view and support for the dot tool. | |
| - Bug fixes: | |
| Aside from those mentioned in v2.0.1 and v2.0.2, this release includes the | |
| following bug fixes: | |
| Issue 2940: Segfault when encoding with --use-16bit-internal and --limit > 1 | |
| Issue 2941: Decoder mismatch with --rt --bit-depth=10 and --cpu-used=8 | |
| Issue 2895: mingw-w64 i686 gcc fails to build | |
| Issue 2874: Separate ssse3 functions from sse2 file. | |
| 2021-02-09 v2.0.2 | |
| This release includes several bug fixes. | |
| - Bug fixes: | |
| Issue 2643: Modify the assertion in temporal filter intrinsics. | |
| Issue 2648: Fix unit test ThreadTestLarge.EncoderResultTest/49 | |
| assertion failure. | |
| Issue 2869: Add -Wimplicit-function-declaration as C flag only. | |
| Issue 2878: Avoid memset in the av1_filter_intra_predictor module | |
| functions. | |
| Issue 2903: Fix a typo bug in apply_temporal_filter_planewise. | |
| Call av1_setup_frame_size() when dropping a frame in the | |
| encode_frame_to_data_rate() function in av1/encoder/encoder.c. | |
| 2020-11-25 v2.0.1 | |
| This release includes two bug fixes. | |
| - Bug fixes: | |
| Issue 2723: Fix crash in chroma_check() when generating a monochrome | |
| encoded stream in real-time mode. | |
| Issue 2833: Fix crash on some input when reduced still picture header is | |
| used in real-time mode and speed >=7. | |
| 2020-05-07 v2.0.0 "Applejack" | |
| First official release of libaom. | |
| This release includes new real-time mode and SVC support. | |
| - Upgrading: | |
| AOM_SET_POSTPROC, AOM_CODEC_CAP_POSTPROC and AOM_CODEC_USE_POSTPROC are | |
| removed. | |
| AOM_SET_DBG_* is removed. | |
| Multi-resolution encoding is removed. | |
| put_frame and put_slice callbacks are removed. | |
| - Enhancements: | |
| Full-sweep document update for codec controls. | |
| 2018-06-28 v1.0.0 | |
| AOMedia Codec Workgroup Approved version 1.0 | |
| 2016-04-07 v0.1.0 "AOMedia Codec 1" | |
| This release is the first Alliance for Open Media codec. |