From 9f02e033875185409c861846f209b04a3be339d2 Mon Sep 17 00:00:00 2001 From: Mark Thompson Date: Thu, 17 Mar 2022 14:41:52 +0800 Subject: vaapi_encode_h265: Query encoding block sizes and features Signed-off-by: Fei Wang --- libavcodec/vaapi_encode_h265.c | 114 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 108 insertions(+), 6 deletions(-) (limited to 'libavcodec') diff --git a/libavcodec/vaapi_encode_h265.c b/libavcodec/vaapi_encode_h265.c index 5b19381c5a..456307d570 100644 --- a/libavcodec/vaapi_encode_h265.c +++ b/libavcodec/vaapi_encode_h265.c @@ -56,6 +56,9 @@ typedef struct VAAPIEncodeH265Context { VAAPIEncodeContext common; // Encoder features. + uint32_t va_features; + // Block size info. + uint32_t va_bs; uint32_t ctu_size; uint32_t min_cb_size; @@ -427,9 +430,9 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx) vps->vps_max_latency_increase_plus1[i]; } - // These have to come from the capabilities of the encoder. We have no - // way to query them, so just hardcode parameters which work on the Intel - // driver. + // These values come from the capabilities of the first encoder + // implementation in the i965 driver on Intel Skylake. They may + // fail badly with other platforms or drivers. // CTB size from 8x8 to 32x32. sps->log2_min_luma_coding_block_size_minus3 = 0; sps->log2_diff_max_min_luma_coding_block_size = 2; @@ -447,6 +450,42 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx) sps->pcm_enabled_flag = 0; +// update sps setting according to queried result +#if VA_CHECK_VERSION(1, 13, 0) + if (priv->va_features) { + VAConfigAttribValEncHEVCFeatures features = { .value = priv->va_features }; + + // Enable feature if get queried result is VA_FEATURE_SUPPORTED | VA_FEATURE_REQUIRED + sps->amp_enabled_flag = + !!features.bits.amp; + sps->sample_adaptive_offset_enabled_flag = + !!features.bits.sao; + sps->sps_temporal_mvp_enabled_flag = + !!features.bits.temporal_mvp; + sps->pcm_enabled_flag = + !!features.bits.pcm; + } + + if (priv->va_bs) { + VAConfigAttribValEncHEVCBlockSizes bs = { .value = priv->va_bs }; + sps->log2_min_luma_coding_block_size_minus3 = + ff_ctz(priv->min_cb_size) - 3; + sps->log2_diff_max_min_luma_coding_block_size = + ff_ctz(priv->ctu_size) - ff_ctz(priv->min_cb_size); + + sps->log2_min_luma_transform_block_size_minus2 = + bs.bits.log2_min_luma_transform_block_size_minus2; + sps->log2_diff_max_min_luma_transform_block_size = + bs.bits.log2_max_luma_transform_block_size_minus2 - + bs.bits.log2_min_luma_transform_block_size_minus2; + + sps->max_transform_hierarchy_depth_inter = + bs.bits.max_max_transform_hierarchy_depth_inter; + sps->max_transform_hierarchy_depth_intra = + bs.bits.max_max_transform_hierarchy_depth_intra; + } +#endif + // STRPSs should ideally be here rather than defined individually in // each slice, but the structure isn't completely fixed so for now // don't bother. @@ -539,6 +578,23 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx) pps->cu_qp_delta_enabled_flag = (ctx->va_rc_mode != VA_RC_CQP); pps->diff_cu_qp_delta_depth = 0; +// update pps setting according to queried result +#if VA_CHECK_VERSION(1, 13, 0) + if (priv->va_features) { + VAConfigAttribValEncHEVCFeatures features = { .value = priv->va_features }; + if (ctx->va_rc_mode != VA_RC_CQP) + pps->cu_qp_delta_enabled_flag = + !!features.bits.cu_qp_delta; + + pps->transform_skip_enabled_flag = + !!features.bits.transform_skip; + // set diff_cu_qp_delta_depth as its max value if cu_qp_delta enabled. Otherwise + // 0 will make cu_qp_delta invalid. + if (pps->cu_qp_delta_enabled_flag) + pps->diff_cu_qp_delta_depth = sps->log2_diff_max_min_luma_coding_block_size; + } +#endif + if (ctx->tile_rows && ctx->tile_cols) { int uniform_spacing; @@ -640,8 +696,8 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx) .coded_buf = VA_INVALID_ID, - .collocated_ref_pic_index = 0xff, - + .collocated_ref_pic_index = sps->sps_temporal_mvp_enabled_flag ? + 0 : 0xff, .last_picture = 0, .pic_init_qp = pps->init_qp_minus26 + 26, @@ -674,6 +730,8 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx) .entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag, .loop_filter_across_tiles_enabled_flag = pps->loop_filter_across_tiles_enabled_flag, + .pps_loop_filter_across_slices_enabled_flag = + pps->pps_loop_filter_across_slices_enabled_flag, .scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag | pps->pps_scaling_list_data_present_flag), .screen_content_flag = 0, @@ -1001,10 +1059,13 @@ static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx, sh->num_long_term_sps = 0; sh->num_long_term_pics = 0; + // when this flag is not present, it is inerred to 1. + sh->collocated_from_l0_flag = 1; sh->slice_temporal_mvp_enabled_flag = sps->sps_temporal_mvp_enabled_flag; if (sh->slice_temporal_mvp_enabled_flag) { - sh->collocated_from_l0_flag = sh->slice_type == HEVC_SLICE_B; + if (sh->slice_type == HEVC_SLICE_B) + sh->collocated_from_l0_flag = 1; sh->collocated_ref_idx = 0; } @@ -1105,6 +1166,47 @@ static av_cold int vaapi_encode_h265_get_encoder_caps(AVCodecContext *avctx) VAAPIEncodeContext *ctx = avctx->priv_data; VAAPIEncodeH265Context *priv = avctx->priv_data; +#if VA_CHECK_VERSION(1, 13, 0) + { + VAConfigAttribValEncHEVCBlockSizes block_size; + VAConfigAttrib attr; + VAStatus vas; + + attr.type = VAConfigAttribEncHEVCFeatures; + vas = vaGetConfigAttributes(ctx->hwctx->display, ctx->va_profile, + ctx->va_entrypoint, &attr, 1); + if (vas != VA_STATUS_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to query encoder " + "features, using guessed defaults.\n"); + return AVERROR_EXTERNAL; + } else if (attr.value == VA_ATTRIB_NOT_SUPPORTED) { + av_log(avctx, AV_LOG_WARNING, "Driver does not advertise " + "encoder features, using guessed defaults.\n"); + } else { + priv->va_features = attr.value; + } + + attr.type = VAConfigAttribEncHEVCBlockSizes; + vas = vaGetConfigAttributes(ctx->hwctx->display, ctx->va_profile, + ctx->va_entrypoint, &attr, 1); + if (vas != VA_STATUS_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to query encoder " + "block size, using guessed defaults.\n"); + return AVERROR_EXTERNAL; + } else if (attr.value == VA_ATTRIB_NOT_SUPPORTED) { + av_log(avctx, AV_LOG_WARNING, "Driver does not advertise " + "encoder block size, using guessed defaults.\n"); + } else { + priv->va_bs = block_size.value = attr.value; + + priv->ctu_size = + 1 << block_size.bits.log2_max_coding_tree_block_size_minus3 + 3; + priv->min_cb_size = + 1 << block_size.bits.log2_min_luma_coding_block_size_minus3 + 3; + } + } +#endif + if (!priv->ctu_size) { priv->ctu_size = 32; priv->min_cb_size = 16; -- cgit v1.2.3