#!/bin/sh ## Copyright (c) 2026, Alliance for Open Media. All rights reserved. ## ## This source code is subject to the terms of the BSD 2 Clause License and ## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License ## was not distributed with this source code in the LICENSE file, you can ## obtain it at www.aomedia.org/license/software. If the Alliance for Open ## Media Patent License 1.0 was not distributed with this source code in the ## PATENTS file, you can obtain it at www.aomedia.org/license/patent. ## ## This file tests the libaom low-complexity decode mode using simple_encoder ## and simple_decoder example. The decoder outputs the instruction counts that ## can be used for decoder speed monitoring. ##
. $(dirname $0)/tools_common.sh
# Environment check: $infile is required.
low_complexity_test_verify_environment() { if [ ! "$(av1_encode_available)" = "yes" ] || \
[ ! "$(av1_decode_available)" = "yes" ]; then echo"Encoder and decoder needs to be available."
return 1 fi
local infile="${LIBAOM_TEST_DATA_PATH}/SDR_Sports_6mug_608p_30fps_90f.yuv" if [ ! -e "${infile}" ]; then echo"Libaom test data must exist in LIBAOM_TEST_DATA_PATH."
return 1 fi
command -v perf >/dev/null 2>&1 if [ $? -ne 0 ]; then echo"Perf does not exist. Please install it."
return 1 fi
}
# Runs libaom low-complexity decode mode test
low_complexity_test() {
local img_width=608
local img_height=1080
# Encode in low-complexity decode mode
local encoder="${LIBAOM_BIN_PATH}/low_complexity_mode_encoder${AOM_TEST_EXE_SUFFIX}"
local input_file="${LIBAOM_TEST_DATA_PATH}/SDR_Sports_6mug_608p_30fps_90f.yuv"
local ivf_file="${AOM_TEST_OUTPUT_DIR}/low_complexity_mode_encoder.bin"
if [ ! -x "${encoder}" ]; then
elog "${encoder} does not exist or is not executable."
return 1 fi
echo"The LC mode encoder is started."
local enc_cmd="$(echo "${AOM_TEST_PREFIX}" "${encoder}" av1 "${img_width}" \ "${img_height}""${input_file}""${ivf_file}"15090"\ "${devnull})" echo"$enc_cmd" eval"$enc_cmd" || return 1
# Use simple_decoder to decode the generated bitstream and collect the # instruction counts.
local decoder="${LIBAOM_BIN_PATH}/simple_decoder${AOM_TEST_EXE_SUFFIX}"
local perfstat_file="${AOM_TEST_OUTPUT_DIR}/perfstat.txt"
local perf_prefix="perf stat --no-big-num -e instructions:u -o ${perfstat_file}"
local output_file="${AOM_TEST_OUTPUT_DIR}/low_complexity_mode_encoder.out"
if [ ! -x "${decoder}" ]; then
elog "${decoder} does not exist or is not executable."
return 1 fi
# Get perf user instruction count from perf output
local instruction_count="$(awk '/instructions:u/ {print $1}' \ "${perfstat_file}")" echo ${instruction_count}
}
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