1. 09 Nov, 2017 1 commit
  2. 08 Nov, 2017 5 commits
    • Arild Fuldseth (arilfuld)'s avatar
      FRAME_SIZE: Never exceed maximum frame dimensions. · b638074c
      Arild Fuldseth (arilfuld) authored
      Encoder:
      Use oxcf->width/heigth instead of cm->width/height in sequence header.
      aom_internal_error() if cm->width/height is larger than max values.
      
      Decoder:
      aom_internal_error() if cm->width/height is larger than max values.
      
      Change-Id: I8d8b415efe82d961dbe34377f4da79379cb111a8
      b638074c
    • Zoe Liu's avatar
      Remove ONE_SIDED_COMPOUND experimental flag · c01dddb7
      Zoe Liu authored
      Always assume ONE_SIDED_COMPOUND is true as it has been adopted
      officially. Further, this patch also fixes the cmake setup for
      the experiment of EXT_COMP_REFS, as when EXT_COMP_REFS is on, it
      shall always have ONE_SIDED_COMPOUND on (but that was not the case
      without this patch).
      
      We leave EXT_COMP_REFS for the time being, even though it is also
      adopted, since by keeping this flag, it may allow its turning off to
      tune the encoder speed. The experiment of EXT_COMP_REFS should be
      removed eventually at the closing of the bitstream.
      
      Change-Id: I0644318e522f5b48d5bba4e4391104a24d43cdc3
      c01dddb7
    • Yaowu Xu's avatar
      Revert "Turn on the max_tile experiment" · 81d458b2
      Yaowu Xu authored
      This reverts commit ab8bb8b8.
      
      The reverted breaks many nightly run tests, reverting this temporarily
      to allow nightly tests to detect other failures. Once the issues are
      fixed, we can reenable the change in the reverted commit.
      
      BUG=aomedia:1012
      BUG=aomedia:1013
      BUG=aomedia:1014
      
      Change-Id: I2503fe78e47c7a08bb6cfdfff2c295cec0b6497d
      81d458b2
    • Linfeng Zhang's avatar
      Remove temporary coeff_is_byte_flag in txb code · b6957c29
      Linfeng Zhang authored
      Change-Id: I8b3e028b3c17660b390ce9c65b3d31aabc83efd9
      b6957c29
    • Sebastien Alaiwan's avatar
      Cleanup unreachable statement · fcebd49e
      Sebastien Alaiwan authored
      Change-Id: I48f45d47123c3eeea0684a5652bffec499408095
      fcebd49e
  3. 07 Nov, 2017 8 commits
    • Hui Su's avatar
      intrabc: control reference areas · 64463e74
      Hui Su authored
      Change-Id: I853a0e4b5fc7e7b5c1745b401214ef71b65aad60
      64463e74
    • Rupert Swarbrick's avatar
      Move loop restoration reset into a helper function · 76405206
      Rupert Swarbrick authored
      This seems a little cleaner than having the loop open coded in four
      places.
      
      Change-Id: I2ce7be2745ba3575f618d9e261ab767d10f551f7
      76405206
    • Rupert Swarbrick's avatar
      Remove duplicated code for reading/writing sequence header · b394bfec
      Rupert Swarbrick authored
      Teach read_sequence_header_obu and write_sequence_header_obu to just
      call read_sequence_header and write_sequence_header, respectively.
      
      Change-Id: Iff27b5cfbccab0ebaf2e28d72df3d6606964936f
      b394bfec
    • Rupert Swarbrick's avatar
      Fix widths in OBU reading code · 4cbf05c5
      Rupert Swarbrick authored
      It was mixing uint32_t and size_t, which isn't correct on a 64-bit
      system and causes compilation warnings.
      
      Change-Id: I3677c02cb366d60175e762ec4249d2445ee729de
      4cbf05c5
    • Rupert Swarbrick's avatar
      Use correct RestorationInfo when encoding tilesize · 4596deb2
      Rupert Swarbrick authored
      Also, factor out some long constants to avoid line wrapping.
      
      BUG=aomedia:1009
      
      Change-Id: I7850c27d22ef8b927c3554f1083bc7bdf2c7c6b3
      4596deb2
    • Hui Su's avatar
      intrabc: add assertions for DV subpel · 1e6bf6ba
      Hui Su authored
      DV and ref DV should not have subpel values.
      
      Change-Id: I7c47c442936f1d6bda36314812c44498ba6195a6
      1e6bf6ba
    • Linfeng Zhang's avatar
      Add levels array in av1_optimize_txb() · 1015a347
      Linfeng Zhang authored
      av1_txb_init_levels() has prefix 'av1' because it will be optimized
      and not static later.
      
      Change-Id: I988da817335f122522a76c4412207c3a6fdd6b71
      1015a347
    • Rupert Swarbrick's avatar
      striped-loop-restoration: Respect tile experiments · 921b334f
      Rupert Swarbrick authored
      As of patch https://aomedia-review.googlesource.com/c/aom/+/28821 ,
      loop-restoration units cannot cross tile borders. But the context
      around each processing unit was still allowed to cross tile borders.
      This is fine in the usual case - but, when loop filtering across tiles
      is switched off, we're supposed to be able to decode each tile completely
      independently (each tile column, if dependent-horztiles is on).
      
      Roughly, the change we need to make is:
      When loop filtering across tiles is switched off, we treat each tile
      as if it were a full frame, and extend the CDEF output for that tile
      to form a 3-pixel border around the tile. We only use deblocked
      above/below pixels for processing unit boundaries which lie inside
      a tile.
      
      In terms of the code, this is implemented in two parts. This only
      applies when the loop_filter_across_tiles_flag is false; otherwise,
      we keep the old behaviour.
      
      * For processing units at the top edge of a tile, fill the above context
        with copies of the topmost line of CDEF output *from the same tile*,
        rather than using deblocked pixels from the tile above.
        The below context of processing units at the bottom edge of a tile
        is treated analogously.
      
      * When setting up the boundary for a processing stripe at the left edge
        of a tile, fill the stripe's left boundary with copies of the
        leftmost column of CDEF output from the same tile. Again, processing
        stripes at the right edge of a tile are treated analogously.
      
        Similarly to the above/below boundaries, we store the overwritten
        pixels into a pair of left/right context buffers, and restore them
        to their original values once we've dealt with that processing stripe.
      
      Change-Id: I53a0932793c1c56dc037683c6a4353a3f5dc4539
      921b334f
  4. 06 Nov, 2017 4 commits
    • Yushin Cho's avatar
      [segment] Remove coding of seg->abs_delta · d728c216
      Yushin Cho authored
      Remove the option of raw data or delta when coding the
      segment data, then only use delta coding.
      
      Raw data coding of segment data has been nowhere used but
      the option of "raw or delta codig of seg_data" has been coded to a bitstream.
      
      Change-Id: Iaf8f21692452d0c9a127b958812c6151d3c5db05
      d728c216
    • Sebastien Alaiwan's avatar
      Accept all global motion model settings · 8d88b297
      Sebastien Alaiwan authored
      When needed, fallback regular interp filter at reconstruction stage.
      
      Such bitstreams are valid.
      However, as we don't expect aomenc to generate them,
      print a helper warning.
      
      Change-Id: I7e818cf607d7d6f71df4ca7878d8976fb88c3282
      8d88b297
    • Rupert Swarbrick's avatar
      Fix mismatch with striped loop restoration+superres · 8ce049e6
      Rupert Swarbrick authored
      When upscaling a frame, we extend frame borders to stop the upscale to
      save boundary lines convolving with uninitialised data off the edges,
      which was causing encode/decode mismatches. With this patch, we only
      do the extension when there's going to be an upscale (otherwise
      there's no need), which should give a small coding gain when not
      upscaling.
      
      More importantly, it forces us to extend in the decode path whether or
      not we are using loop restoration, which matches what the encoder does
      and fixes a mismatch.
      
      Change-Id: Ie5a0791b0cbedbf254f9080f3cbf668318673f2f
      8ce049e6
    • Dominic Symes's avatar
      Turn on the max_tile experiment · ab8bb8b8
      Dominic Symes authored
      max_tile was provisionally adopted at the working group meeting 2017-Oct-10
      
      This patch also enables support for 64x64 and 128x128 superblock size for max tile
      (rather than assuming 128). There is also one fix for max_tile in combination of
      loop restoration where the width/height was in the wrong units for max-tile specific code.
      
      Change-Id: Icb862a2738fea5fc6215819396e1afa4eb86e461
      ab8bb8b8
  5. 05 Nov, 2017 1 commit
  6. 04 Nov, 2017 3 commits
    • Yue Chen's avatar
      Remove NCOBMC_ADAPT_WEIGHT from AV1 · 80daf0c4
      Yue Chen authored
      Development of this experiment will be deferred to AV2.
      
      Change-Id: I3c4615a21b59508500bed8aab0a5c54413b4f284
      80daf0c4
    • Jingning Han's avatar
      Separate ref frame mvs control from prev_frame_mvs · e17ebe92
      Jingning Han authored
      The control of using reference frame motion vector is a separate
      factor from the existence of previous frame motion vectors. This
      commit decouples these two, such that the encoder can control the
      use of reference motion vector. When it is used, one can further
      identify if the previous frame exists or not, then to decide if
      need to force use_prev_frame_mvs to be zero.
      
      This solves the issue where the previous frame mvs is set to be
      0 and it accidentally shuts off the access to all other existing
      referece frames mvs in the mfmv system. It brings back the coding
      performance gains to normal.
      
      Change-Id: I2531f73e55582a9bb5b3e0ff47e361a199ec8082
      e17ebe92
    • Debargha Mukherjee's avatar
      Simplify tx_mode frame level bit · 923b73d8
      Debargha Mukherjee authored
      Adds a new experiment to simplify the tx_mode symbol.
      
      The existing frame level tx_mode information is converted to a single bit
      to select between largest tx_size for a prediction unit or specified
      at the block level. The less useful modes: ALLOW_8X8, ALLOW_16X16,
      etc. are removed.
      
      Change-Id: Ib9358e17b0158a167eb4edef79f36ff113aa56e1
      923b73d8
  7. 03 Nov, 2017 5 commits
    • Yunqing Wang's avatar
      Allow to disable the probability update · 0e141b56
      Yunqing Wang authored
      Added the function of allowing to disable the probability update while
      needed. This would be needed while encoding in multiple tiles, and
      enabling/disabling probability update can be set separately for every
      individual tile.
      
      Change-Id: Ic3c64e6cebac89c483d48b874761bd2e902d81e6
      0e141b56
    • David Barker's avatar
      Fix bug introduced by commit 01563088 · b44deca9
      David Barker authored
      When fixing one bug in av1_decode_tg_tiles_and_wrapup, I seem to have
      introduced another bug. This was due to checking the wrong condition
      on whether to update the frame context at the end of the frame.
      
      BUG=aomedia:1001
      
      Change-Id: I929a710e2de31a89cc7899fb1605ca7edf968a87
      b44deca9
    • Yue Chen's avatar
      Disable filter_intra mode in <8x8 tx blocks · 95e13e23
      Yue Chen authored
      0.159% gain on lowres 60 frames, compared to 0.236% gain if we don't
      restrict it in small tx blocks.
      (--disable-ext-partition --disable-ext-partition-types
       --disable-convolve-round --disable-ext-comp-refs)
      
      Change-Id: I1d1c5474ca27de9dec992ea30a9883afd7a56474
      95e13e23
    • Sebastien Alaiwan's avatar
      Remove VAR_REFS experiment · 4be6cb32
      Sebastien Alaiwan authored
      This experiment has been abandonned.
      
      Change-Id: Ieabc6f365651e2d116a4505a3cc202add94d1386
      4be6cb32
    • Rupert Swarbrick's avatar
      Allow horzonly superres and striped loop restoration · 76c7800e
      Rupert Swarbrick authored
      We do this by upscaling the deblocked output as we save it into the
      RestorationStripeBoundaries line buffers. (See save_boundary_lines in
      restoration.c for the details)
      
      The upscaling is done by calling av1_convolve_horiz_rs, which reads
      off the edge of the frame and, of course, across tile boundaries. This
      means we need to extend the frame borders before saving boundary
      lines (hence the changes to decodeframe.c and encoder.c)
      
      Change-Id: Ia096846898b20afe4737433d772f7277d4f71724
      76c7800e
  8. 02 Nov, 2017 9 commits
    • Dake He's avatar
      [level map] cleanup and remove assertions · bd47bfaa
      Dake He authored
      Removed assertions were not properly set up and may cause decoding failure when USE_CASUAL_CTX is enabled. This CL does not change bitstream.
      
      Change-Id: Ib9193cbda32f342335a79aca39e9cc49204a0ec9
      bd47bfaa
    • Rupert Swarbrick's avatar
      Get rid of RestorationInfo::procunit_height and width · cb493d82
      Rupert Swarbrick authored
      These are just RESTORATION_PROC_UNIT_SIZE shifted right by the
      vertical or horizontal subsampling for this plane and it's easier not
      to have to pass them around.
      
      Change-Id: I86441d6cd86bb146f3e5dcdf2c89e34dd9fed0e1
      cb493d82
    • Sebastien Alaiwan's avatar
      Simplify flow of control (decoder) · 238a6d63
      Sebastien Alaiwan authored
      Avoid switch fallthrough (and associated gcc/clang warnings),
      reduce scopes and add consts.
      
      Change-Id: I28d910d9d39ee8fe2c5618364af602af5be5c186
      238a6d63
    • Sebastien Alaiwan's avatar
      Remove experimental flag of EXT_TX · 3bac9928
      Sebastien Alaiwan authored
      This experiment has been adopted, we can simplify the code
      by dropping the associated preprocessor conditionals.
      
      Change-Id: I02ed47186bbc32400ee9bfadda17659d859c0ef7
      3bac9928
    • Pavel Frolov's avatar
      Fix delta_qindex and delta_lflevel signaling · 1dbe92d6
      Pavel Frolov authored
      BUG=aomedia:992
      
      Change-Id: Ifcaedaf312f056fcc29e6a8e020aac0ddc52affd
      1dbe92d6
    • Debargha Mukherjee's avatar
      Add an expt to remove allow high precision mv flag · b214775d
      Debargha Mukherjee authored
      Change-Id: I3873acafcd9539da96f67328cdb8faf7798be90f
      b214775d
    • David Barker's avatar
      OBU: Fix a few bugs · 01563088
      David Barker authored
      * The function av1_decode_tg_tiles_and_wrapup performs some per-frame
        initialization; some of this was mistakenly being performed
        once per tile group instead, leading to strange behaviour
        (eg, forgetting loop-restoration coefficients, forgetting
        the boundary information for all but the last tile group, etc.)
      
        Fix this by pulling all of the initialization code into its
        own function and calling it only if the initialize_flag is set.
      
      * While fixing the above, I realized that the 'context_updated'
        flag in av1_decode_tg_tile_and_wrapup was not behaving as intended:
        The idea is that, when using frame parallel mode, we save the
        frame context early so that the next frame can start decoding.
        Then we don't need to store the frame context at the end of
        the frame, since we already dealt with it at the start of the frame.
      
        However, this 'context_updated' flag was local to one tile group,
        ie. it got reset to 0 once we started decoding the second tile group.
        So we'd end up storing the frame context again at the end of the frame
        if there was >1 tile group.
      
        This didn't break anything, but it is a bit weird. So, to match
        the original intent, we ditch the 'context_updated' flag and
        directly check if we're in frame parallel mode when necessary.
      
      * Fix a bug where we read one byte too much from a tile group
        OBU when the extended OBU header was used.
      
      BUG=aomedia:892
      
      Change-Id: Ifbe561de0de35525d809e23915ac5263273e8de7
      01563088
    • Rupert Swarbrick's avatar
      Refactor border treatment in loop restoration · 5b401364
      Rupert Swarbrick authored
      Previously we were calling aom_extend_frame_borders to generate
      extended pixels for use in loop-restoration. This generates quite a
      large border, when we only need 3 pixels.
      
      In addition, we were also calling extend_frame, which does the same
      thing but with a smaller border, once (in the decoder) or multiple
      times (in the encoder) per plane.
      
      This patch tidies all of this up so that we only call extend_frame
      once per plane, with the largest border size we need (3px).
      
      It also adds two new #defines. RESTORATION_BORDER is the 3 pixel
      border needed to do filtering for a processing
      unit. RESTORATION_CTX_VERT is the number of rows saved for each stripe
      when doing striped loop restoration.
      
      Change-Id: I2c3ffcc19808f79db195f76d857e2f23da5d8a84
      5b401364
    • Dake He's avatar
      [level map] simplified context derivation · 03a32926
      Dake He authored
      This CL simplifies context derivation for nz and base level flags in
      level map.
      1. Reduce SIG_COEF_CONTEXTS from 58 to 42.
      2. NZ and base level flags share the same context offsets derived from a
      template of size 5 (down from 7).
      
      In limited runs, compression performance seems neutral if not better.
      Encoding time for a key frame on a local linux machine is reduced by about 25% or more.
      
      Change-Id: Ibd93b21c839154bc5ae26b993f9e66537cbf5942
      03a32926
  9. 01 Nov, 2017 4 commits