[FFmpeg-devel] [PATCH] Added more commandline options for libaom encoder.

James Almer jamrial at gmail.com
Thu Mar 7 03:05:21 EET 2019


On 3/6/2019 9:56 PM, Sam John wrote:
> The following are the newly added options:
> arnr_max_frames, arnr_strength, aq_mode, denoise_noise_level, denoise_block_size,
> rc_undershoot_pct, rc_overshoot_pct, minsection_pct, maxsection_pct, frame_parallel,
> enable_cdef, and enable_global_motion.

We're currently allowing compilation of libavcodec with libaom 1.0.0 as
the oldest version. If any of these options or aom_codec_enc_cfg entries
were added after 1.0.0 was tagged, then you need to wrap the relevant
lines in ctlidstr[] and aom_init() with the related AOM_CTRL_*,
AOM_ENCODER_ABI_VERSION, or whichever preprocessor check.

> ---
>  libavcodec/libaomenc.c | 71 ++++++++++++++++++++++++++++++++++++++++--
>  1 file changed, 68 insertions(+), 3 deletions(-)
> 
> diff --git a/libavcodec/libaomenc.c b/libavcodec/libaomenc.c
> index faec61cacd..687ea5f2c7 100644
> --- a/libavcodec/libaomenc.c
> +++ b/libavcodec/libaomenc.c
> @@ -66,36 +66,57 @@ typedef struct AOMEncoderContext {
>      struct FrameListData *coded_frame_list;
>      int cpu_used;
>      int auto_alt_ref;
> +    int arnr_max_frames;
> +    int arnr_strength;
> +    int aq_mode;
>      int lag_in_frames;
>      int error_resilient;
>      int crf;
>      int static_thresh;
>      int drop_threshold;
> +    int denoise_noise_level;
> +    int denoise_block_size;
>      uint64_t sse[4];
>      int have_sse; /**< true if we have pending sse[] */
>      uint64_t frame_number;
> +    int rc_undershoot_pct;
> +    int rc_overshoot_pct;
> +    int minsection_pct;
> +    int maxsection_pct;
> +    int frame_parallel;
>      int tile_cols, tile_rows;
>      int tile_cols_log2, tile_rows_log2;
>      aom_superblock_size_t superblock_size;
>      int uniform_tiles;
>      int row_mt;
> +    int enable_cdef;
> +    int enable_global_motion;
>  } AOMContext;
>  
>  static const char *const ctlidstr[] = {
>      [AOME_SET_CPUUSED]          = "AOME_SET_CPUUSED",
>      [AOME_SET_CQ_LEVEL]         = "AOME_SET_CQ_LEVEL",
>      [AOME_SET_ENABLEAUTOALTREF] = "AOME_SET_ENABLEAUTOALTREF",
> +    [AOME_SET_ARNR_MAXFRAMES]   = "AOME_SET_ARNR_MAXFRAMES",
> +    [AOME_SET_ARNR_STRENGTH]    = "AOME_SET_ARNR_STRENGTH",
>      [AOME_SET_STATIC_THRESHOLD] = "AOME_SET_STATIC_THRESHOLD",
>      [AV1E_SET_COLOR_RANGE]      = "AV1E_SET_COLOR_RANGE",
>      [AV1E_SET_COLOR_PRIMARIES]  = "AV1E_SET_COLOR_PRIMARIES",
> +    [AV1E_SET_DENOISE_NOISE_LEVEL] = "AV1E_SET_DENOISE_NOISE_LEVEL",
> +    [AV1E_SET_DENOISE_BLOCK_SIZE] = "AV1E_SET_DENOISE_BLOCK_SIZE",
>      [AV1E_SET_MATRIX_COEFFICIENTS] = "AV1E_SET_MATRIX_COEFFICIENTS",
>      [AV1E_SET_TRANSFER_CHARACTERISTICS] = "AV1E_SET_TRANSFER_CHARACTERISTICS",
> +    [AV1E_SET_AQ_MODE]          = "AV1E_SET_AQ_MODE",
> +    [AV1E_SET_FRAME_PARALLEL_DECODING] = "AV1E_SET_FRAME_PARALLEL_DECODING",
>      [AV1E_SET_SUPERBLOCK_SIZE]  = "AV1E_SET_SUPERBLOCK_SIZE",
>      [AV1E_SET_TILE_COLUMNS]     = "AV1E_SET_TILE_COLUMNS",
>      [AV1E_SET_TILE_ROWS]        = "AV1E_SET_TILE_ROWS",
> +    [AV1E_SET_MAX_REFERENCE_FRAMES] = "AV1E_SET_MAX_REFERENCE_FRAMES",
>  #ifdef AOM_CTRL_AV1E_SET_ROW_MT
>      [AV1E_SET_ROW_MT]           = "AV1E_SET_ROW_MT",
>  #endif
> +    [AV1E_SET_ENABLE_CDEF]          = "AV1E_SET_ENABLE_CDEF",
> +    [AV1E_SET_ENABLE_GLOBAL_MOTION] = "AV1E_SET_ENABLE_GLOBAL_MOTION",
>  };
>  
>  static av_cold void log_encoder_error(AVCodecContext *avctx, const char *desc)
> @@ -567,10 +588,14 @@ static av_cold int aom_init(AVCodecContext *avctx,
>  
>      // 0-100 (0 => CBR, 100 => VBR)
>      enccfg.rc_2pass_vbr_bias_pct       = round(avctx->qcompress * 100);
> -    if (avctx->bit_rate)
> +    if (ctx->minsection_pct >= 0)
> +        enccfg.rc_2pass_vbr_minsection_pct = ctx->minsection_pct;
> +    else if (avctx->bit_rate)
>          enccfg.rc_2pass_vbr_minsection_pct =
>              avctx->rc_min_rate * 100LL / avctx->bit_rate;
> -    if (avctx->rc_max_rate)
> +    if (ctx->maxsection_pct >= 0)
> +        enccfg.rc_2pass_vbr_maxsection_pct = ctx->maxsection_pct;
> +    else if (avctx->rc_max_rate)
>          enccfg.rc_2pass_vbr_maxsection_pct =
>              avctx->rc_max_rate * 100LL / avctx->bit_rate;
>  
> @@ -582,6 +607,11 @@ static av_cold int aom_init(AVCodecContext *avctx,
>              avctx->rc_initial_buffer_occupancy * 1000LL / avctx->bit_rate;
>      enccfg.rc_buf_optimal_sz = enccfg.rc_buf_sz * 5 / 6;
>  
> +    if (ctx->rc_undershoot_pct >= 0)
> +        enccfg.rc_undershoot_pct = ctx->rc_undershoot_pct;
> +    if (ctx->rc_overshoot_pct >= 0)
> +        enccfg.rc_overshoot_pct = ctx->rc_overshoot_pct;
> +
>      // _enc_init() will balk if kf_min_dist differs from max w/AOM_KF_AUTO
>      if (avctx->keyint_min >= 0 && avctx->keyint_min == avctx->gop_size)
>          enccfg.kf_min_dist = avctx->keyint_min;
> @@ -643,14 +673,30 @@ static av_cold int aom_init(AVCodecContext *avctx,
>      codecctl_int(avctx, AOME_SET_CPUUSED, ctx->cpu_used);
>      if (ctx->auto_alt_ref >= 0)
>          codecctl_int(avctx, AOME_SET_ENABLEAUTOALTREF, ctx->auto_alt_ref);
> -
> +    if (ctx->arnr_max_frames >= 0)
> +        codecctl_int(avctx, AOME_SET_ARNR_MAXFRAMES,   ctx->arnr_max_frames);
> +    if (ctx->arnr_strength >= 0)
> +        codecctl_int(avctx, AOME_SET_ARNR_STRENGTH,    ctx->arnr_strength);
> +    if (ctx->enable_cdef >= 0)
> +        codecctl_int(avctx, AV1E_SET_ENABLE_CDEF, ctx->enable_cdef);
> +    if (ctx->enable_global_motion >= 0)
> +        codecctl_int(avctx, AV1E_SET_ENABLE_GLOBAL_MOTION, ctx->enable_global_motion);
>      codecctl_int(avctx, AOME_SET_STATIC_THRESHOLD, ctx->static_thresh);
>      if (ctx->crf >= 0)
>          codecctl_int(avctx, AOME_SET_CQ_LEVEL,          ctx->crf);
>  
> +    if (ctx->denoise_noise_level >= 0)
> +        codecctl_int(avctx, AV1E_SET_DENOISE_NOISE_LEVEL, ctx->denoise_noise_level);
> +    if (ctx->denoise_block_size >= 0)
> +        codecctl_int(avctx, AV1E_SET_DENOISE_BLOCK_SIZE, ctx->denoise_block_size);
> +
>      codecctl_int(avctx, AV1E_SET_COLOR_PRIMARIES, avctx->color_primaries);
>      codecctl_int(avctx, AV1E_SET_MATRIX_COEFFICIENTS, avctx->colorspace);
>      codecctl_int(avctx, AV1E_SET_TRANSFER_CHARACTERISTICS, avctx->color_trc);
> +    if (ctx->aq_mode >= 0)
> +        codecctl_int(avctx, AV1E_SET_AQ_MODE, ctx->aq_mode);
> +    if (ctx->frame_parallel >= 0)
> +        codecctl_int(avctx, AV1E_SET_FRAME_PARALLEL_DECODING, ctx->frame_parallel);
>      set_color_range(avctx);
>  
>      codecctl_int(avctx, AV1E_SET_SUPERBLOCK_SIZE, ctx->superblock_size);
> @@ -659,6 +705,9 @@ static av_cold int aom_init(AVCodecContext *avctx,
>          codecctl_int(avctx, AV1E_SET_TILE_ROWS,    ctx->tile_rows_log2);
>      }
>  
> +    if (avctx->refs >= 0) {
> +        codecctl_int(avctx, AV1E_SET_MAX_REFERENCE_FRAMES, avctx->refs);
> +    }
>  #ifdef AOM_CTRL_AV1E_SET_ROW_MT
>      codecctl_int(avctx, AV1E_SET_ROW_MT, ctx->row_mt);
>  #endif
> @@ -988,15 +1037,31 @@ static const AVOption options[] = {
>                           "frames (2-pass only)",                   OFFSET(auto_alt_ref),    AV_OPT_TYPE_INT, {.i64 = -1},      -1,      2,       VE},
>      { "lag-in-frames",   "Number of frames to look ahead at for "
>                           "alternate reference frame selection",    OFFSET(lag_in_frames),   AV_OPT_TYPE_INT, {.i64 = -1},      -1,      INT_MAX, VE},
> +    { "arnr-max-frames", "altref noise reduction max frame count", OFFSET(arnr_max_frames), AV_OPT_TYPE_INT, {.i64 = -1},      -1,      INT_MAX, VE},
> +    { "arnr-strength",   "altref noise reduction filter strength", OFFSET(arnr_strength),   AV_OPT_TYPE_INT, {.i64 = -1},      -1,      6,       VE},
> +    { "aq-mode",         "adaptive quantization mode",             OFFSET(aq_mode),         AV_OPT_TYPE_INT, {.i64 = -1},      -1,      4, VE, "aq_mode"},
> +    { "none",            "Aq not used",         0, AV_OPT_TYPE_CONST, {.i64 = 0}, 0, 0, VE, "aq_mode" },
> +    { "variance",        "Variance based Aq",   0, AV_OPT_TYPE_CONST, {.i64 = 1}, 0, 0, VE, "aq_mode" },
> +    { "complexity",      "Complexity based Aq", 0, AV_OPT_TYPE_CONST, {.i64 = 2}, 0, 0, VE, "aq_mode" },
> +    { "cyclic",          "Cyclic Refresh Aq",   0, AV_OPT_TYPE_CONST, {.i64 = 3}, 0, 0, VE, "aq_mode" },
>      { "error-resilience", "Error resilience configuration", OFFSET(error_resilient), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, VE, "er"},
>      { "default",         "Improve resiliency against losses of whole frames", 0, AV_OPT_TYPE_CONST, {.i64 = AOM_ERROR_RESILIENT_DEFAULT}, 0, 0, VE, "er"},
>      { "crf",              "Select the quality for constant quality mode", offsetof(AOMContext, crf), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 63, VE },
>      { "static-thresh",    "A change threshold on blocks below which they will be skipped by the encoder", OFFSET(static_thresh), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
>      { "drop-threshold",   "Frame drop threshold", offsetof(AOMContext, drop_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, VE },
> +    { "denoise-noise-level", "Amount of noise to be removed", OFFSET(denoise_noise_level), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, VE},
> +    { "denoise-block-size", "Denoise block size ", OFFSET(denoise_block_size), AV_OPT_TYPE_INT, {.i64 = 32 }, 0, INT_MAX, VE},
> +    { "undershoot-pct",   "Datarate undershoot (min) target (%)", OFFSET(rc_undershoot_pct), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 100, VE },
> +    { "overshoot-pct",    "Datarate overshoot (max) target (%)", OFFSET(rc_overshoot_pct), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1000, VE },
> +    { "minsection-pct",   "GOP min bitrate (% of target)", OFFSET(minsection_pct), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 100, VE },
> +    { "maxsection-pct",   "GOP max bitrate (% of target)", OFFSET(maxsection_pct), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 5000, VE },
> +    { "frame-parallel",   "Enable frame parallel decodability features", OFFSET(frame_parallel),  AV_OPT_TYPE_BOOL,{.i64 = -1}, -1, 1, VE},
>      { "tiles",            "Tile columns x rows", OFFSET(tile_cols), AV_OPT_TYPE_IMAGE_SIZE, { .str = NULL }, 0, 0, VE },
>      { "tile-columns",     "Log2 of number of tile columns to use", OFFSET(tile_cols_log2), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 6, VE},
>      { "tile-rows",        "Log2 of number of tile rows to use",    OFFSET(tile_rows_log2), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 6, VE},
>      { "row-mt",           "Enable row based multi-threading",      OFFSET(row_mt),         AV_OPT_TYPE_BOOL, {.i64 = 0},  0, 1, VE},
> +    { "enable-cdef",      "Enable CDEF filtering",                 OFFSET(enable_cdef),    AV_OPT_TYPE_BOOL, {.i64 = 1},  0, 1, VE},
> +    { "enable-global-motion",  "Enable global motion",             OFFSET(enable_global_motion), AV_OPT_TYPE_BOOL, {.i64 = 1},  0, 1, VE},
>      { NULL }
>  };
>  
> 



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