improve add_project_versioning_to_ffmpeg and remove HEADLESS

Jenkinsfile

@@ -13,7 +13,9 @@ def withDockerCreds(body) {
 
 pipeline {
     agent none
-    environment { DEBUG = "1" }
+    environment {
+        DEBUG = "1"
+    }
     options { buildDiscarder logRotator(numToKeepStr: '4') }
     stages {
         stage('build docker image') {
@@ -36,14 +38,16 @@ pipeline {
         stage('build ffmpeg on darwin') {
             matrix {
                 axes {
-                    axis { name 'OPT_LTO'; values 'OPT=0 LTO=OFF', 'OPT=3 LTO=ON' }
-                    axis { name 'STATIC'; values 'ON', 'OFF' }
+                    axis { 
+                        name 'COMP_OPTS'; 
+                        values 'OPT=0 LTO=OFF STATIC=OFF', 'OPT=2 LTO=OFF STATIC=ON', 'OPT=3 LTO=ON STATIC=ON PGO=ON'
+                    }
                 }
                 stages {
                     stage('build on darwin ') {
                         agent { label "darwin" }
                         steps {
-                            sh "${OPT_LTO} ./scripts/build.sh"
+                            sh "${COMP_OPTS} ./scripts/build.sh"
                             archiveArtifacts allowEmptyArchive: true, artifacts: 'gitignore/package/*.tar.xz', defaultExcludes: false
                         }
                     }
@@ -55,15 +59,17 @@ pipeline {
                 axes {
                     axis { name 'ARCH'; values 'armv8-a', 'x86-64-v3' }
                     axis { name 'DISTRO'; values 'ubuntu', 'fedora', 'debian', 'archlinux' }
-                    axis { name 'OPT_LTO'; values 'OPT=0 LTO=OFF', 'OPT=3 LTO=ON' }
-                    axis { name 'STATIC'; values 'ON', 'OFF' }
+                    axis { 
+                        name 'COMP_OPTS'; 
+                        values 'OPT=0 LTO=OFF STATIC=OFF', 'OPT=2 LTO=OFF STATIC=ON', 'OPT=3 LTO=ON STATIC=ON PGO=ON'
+                    }
                 }
                 stages {
                     stage('build ffmpeg on linux using docker') {
                         agent { label "linux && ${ARCH}" }
                         steps {
                             withDockerCreds {
-                                sh "${OPT_LTO} ./scripts/build_with_docker.sh ${DISTRO}"
+                                sh "${COMP_OPTS} ./scripts/build_with_docker.sh ${DISTRO}"
                                 archiveArtifacts allowEmptyArchive: true, artifacts: 'gitignore/package/*.tar.xz', defaultExcludes: false
                             }
                         }

README.md

@@ -1,5 +1,6 @@
 
-A collection of scripts for building ffmpeg and encoding content with the built ffmpeg
+# ffmpeg-builder
+A collection of scripts for building `ffmpeg` and encoding content with the built `ffmpeg`.
 
 Tested on:
 - linux x86_64/aarch64 on:
@@ -9,39 +10,156 @@ Tested on:
   - archlinux
 - darwin aarch64
 
-```bash
-~~~ Usable Commands ~~~
+With these scripts you can:
+1. install required dependencies using `./scripts/install_deps.sh`
+2. build ffmpeg with the desired configuration using `./scripts/build.sh`
+3. encode a file using libsvtav1_psy and libopus using `./scripts/encode.sh`
+4. estimate the film grain of a given file using `./scripts/efg.sh`
 
-print_cmds: 
-	print usable commands
-do_build: 
-	build a specific project
-build: 
-	build ffmpeg with desired configuration
-docker_build_image: 
-	build docker image with required dependencies pre-installed
-docker_save_image: 
-	save docker image into tar.zst
-docker_load_image: 
-	load docker image from tar.zst
-docker_run_image: 
-	run docker image with given flags
-build_with_docker: 
-	run docker image with given flags
-docker_build_multiarch_image: 
-	build multiarch docker image
-efg: 
-	estimate the film grain of a given file
-encode: 
-	encode a file using libsvtav1_psy and libopus
-print_pkg_mgr: 
-	print out evaluated package manager commands and required packages
-install_deps: 
-	install required dependencies
-package: 
-	package ffmpeg build
-gen_readme: 
-	generate project README.md
+# Building
+This project supports multiple ways to build.
+
+## Configuration
+Configuration is done through environment variables.
+By default, this project will build a static `ffmpeg` binary in `./gitignore/sysroot/bin/ffmpeg`.
+The default enabled libraries included in the `ffmpeg` build are:
+- libsvtav1_psy
+- libopus
+- libdav1d
+- libaom
+- librav1e
+- libvmaf
+- libx264
+- libx265
+- libwebp
+- libvpx
+- libass
+- libvorbis
+- libmp3lame
+
+The user-overridable compile options are:
+- `ENABLE`: configure what ffmpeg enables (default: libsvtav1_psy libopus libdav1d libaom librav1e libvmaf libx264 libx265 libwebp libvpx libass libvorbis libmp3lame)
+- `PREFIX`: prefix to install to, default is local install in ./gitignore/sysroot (default: local)
+- `STATIC`: static or shared build (default: ON)
+- `LTO`: enable link time optimization (default: ON)
+- `CLEAN`: clean build directories before building (default: ON)
+- `PGO`: enable profile guided optimization (default: OFF)
+- `ARCH`: architecture type (x86-64-v{1,2,3,4}, armv8-a, etc) (default: native)
+- `OPT`: optimization level (0-3) (default: 3)
+
+Examples:
+- only build libsvtav1_psy and libopus: `ENABLE='libsvtav1_psy libopus' ./scripts/build.sh`
+- build shared libraries in custom path: `PREFIX=/usr/local STATIC=OFF ./scripts/build.sh` 
+- build without LTO at O1: `LTO=OFF OPT=1 ./scripts/build.sh`
+
+### Native build
+Make sure to install required dependencies using `./scripts/install_deps.sh`. Then build ffmpeg with the desired configuration using `./scripts/build.sh`.
+
+### Docker build
+1. choose a given distro from: `ubuntu fedora debian archlinux`.
+2. build a docker image with the required dependencies pre-installed using `./scripts/docker_build_image.sh` `<distro>`.
+3. run a docker image with the given arguments using `./scripts/docker_run_image.sh` `<distro>` `./scripts/build.sh`
+
+Docker builds support the same configuration options as native builds. For example to build `ffmpeg` on ubuntu with only `libdav1d` enabled:
+```bash
+./scripts/docker_build_image.sh ubuntu
+ENABLE='libdav1d' ./scripts/docker_run_image.sh ubuntu ./scripts/build.sh
 ```
 
+# Encoding scripts
+The encoding scripts are designed to be installed to system paths for re-use via symbolic links back to this repo using the `-I` flag.
+
+## Encoding with svtav1-psy and opus
+```bash
+encode -i input [options] output
+	[-P NUM] set preset (default: 3)
+	[-C NUM] set CRF (default: 25)
+	[-g NUM] set film grain for encode
+	[-p] print the command instead of executing it (default: false)
+	[-c] use cropdetect (default: false)
+	[-d] enable dolby vision (default: false)
+	[-v] print relevant version info
+	[-s] use same container as input, default is convert to mkv
+
+	[output] if unset, defaults to ${PWD}/av1-input-file-name.mkv
+
+	[-u] update script (git pull ffmpeg-builder)
+	[-I] system install at /usr/local/bin/encode
+	[-U] uninstall from /usr/local/bin/encode
+```
+- Uses svtav1-psy for the video encoder.
+- Uses libopus for the audio encoder.
+- Skips re-encoding av1/opus streams.
+- Only maps audio streams that match the video stream language if the video stream has a defined language.
+- Only maps english subtitle streams.
+- Adds track statistics to the output mkv file and embeds the encoder versions to the output metadata. For example:
+```
+ENCODE : aa4d7e6
+FFMPEG : 8.0
+LIBOPUS : 1.5.2
+LIBSVTAV1_PSY : 3.0.2-B
+SVTAV1_PARAMS : film-grain=8:film-grain-denoise=1:tune=0:...
+VIDEO_PARAMS : -crf 25 -preset 3 -g 240
+```
+
+Example usage:
+- standard usage: `encode -i input.mkv output.mkv`
+- print out what will be executed without starting encoding: `encode -i input.mkv -p`
+- encode with film-grain synthesis value of 20 with denoising: `encode -g 20 -i input.mkv` 
+
+## Estimate film-grain
+```bash
+efg -i input [options]
+	[-P NUM] set preset (default: 10)
+	[-l NUM] low value (default: 0)
+	[-s NUM] step value (default: 1)
+	[-h NUM] high value (default: 30)
+	[-p] plot bitrates using gnuplot
+
+	[-I] system install at /usr/local/bin/efg
+	[-U] uninstall from /usr/local/bin/efg
+```
+- Provides a way to estimate the ideal film-grain amount by encoding from low-high given values and the step amount.
+- Observing the point of diminishing returns, one can make an informed decision for a given film-grain value to choose.
+
+Example usage:
+- `efg -i input.mkv -p`
+```
+  10000 +------------------------------------------------------------------------------------------------------------------------------------------+
+        |      **G*            +                      +                       +                      +                      +                      |
+        |          **                                    /Volumes/External/ffmpeg-builder/gitignore/tmp/efg-matrix-reloaded.mkv/plot.dat ***G*** |
+        |            *G**                                                                                                                          |
+        |                **G                                                                                                                       |
+   9000 |-+                 **                                                                                                                   +-|
+        |                     *G**                                                                                                                 |
+        |                         **G                                                                                                              |
+        |                            **                                                                                                            |
+        |                              *G*                                                                                                         |
+   8000 |-+                               **                                                                                                     +-|
+        |                                   *G**                                                                                                   |
+        |                                       **G                                                                                                |
+        |                                          **                                                                                              |
+        |                                            *G**                                                                                          |
+   7000 |-+                                              **G*                                                                                    +-|
+        |                                                    **                                                                                    |
+        |                                                      *G*                                                                                 |
+        |                                                         **G**                                                                            |
+   6000 |-+                                                            **G*                                                                      +-|
+        |                                                                  **                                                                      |
+        |                                                                    *G*                                                                   |
+        |                                                                       **G**                                                              |
+        |                                                                            **G*                                                          |
+   5000 |-+                                                                              **G**                                                   +-|
+        |                                                                                     **G****G*                                            |
+        |                                                                                              **G**                                       |
+        |                                                                                                   **G****G*                              |
+        |                                                                                                            **G****G*                     |
+   4000 |-+                                                                                                                   **G****G****G*     +-|
+        |                                                                                                                                   **G****|
+        |                                                                                                                                          |
+        |                                                                                                                                          |
+        |                      +                      +                       +                      +                      +                      |
+   3000 +------------------------------------------------------------------------------------------------------------------------------------------+
+        0                      5                      10                      15                     20                     25                     30
+```
 

lib/0-utils.sh

@@ -0,0 +1,419 @@
+#!/usr/bin/env bash
+
+# shellcheck disable=SC2034
+
+# ANSI colors
+RED='\e[0;31m'
+CYAN='\e[0;36m'
+GREEN='\e[0;32m'
+YELLOW='\e[0;33m'
+NC='\e[0m'
+
+# echo wrappers
+echo_wrapper() {
+    local args
+    if [[ $1 == '-n' ]]; then
+        args=("$1")
+        shift
+    fi
+    # COLOR is override for using ${color}
+    # shellcheck disable=SC2153
+    if [[ ${COLOR} == 'OFF' ]]; then
+        color=''
+        endColor=''
+    else
+        endColor="${NC}"
+    fi
+
+    echo -e "${args[@]}" "${color}${word:-''}${endColor}" "$@"
+}
+echo_fail() { color="${RED}" word="FAIL" echo_wrapper "$@"; }
+echo_info() { color="${CYAN}" word="INFO" echo_wrapper "$@"; }
+echo_pass() { color="${GREEN}" word="PASS" echo_wrapper "$@"; }
+echo_warn() { color="${YELLOW}" word="WARN" echo_wrapper "$@"; }
+echo_exit() {
+    echo_fail "$@"
+    exit 1
+}
+void() { echo "$@" >/dev/null; }
+
+echo_if_fail() {
+    local cmd=("$@")
+    local logName="${LOGNAME:-${RANDOM}}-"
+    local out="${TMP_DIR}/${logName}stdout"
+    local err="${TMP_DIR}/${logName}stderr"
+
+    # set trace to the cmdEvalTrace and open file descriptor
+    local cmdEvalTrace="${TMP_DIR}/${logName}cmdEvalTrace"
+    exec 5>"${cmdEvalTrace}"
+    export BASH_XTRACEFD=5
+
+    set -x
+    "${cmd[@]}" >"${out}" 2>"${err}"
+    local retval=$?
+
+    # unset and close file descriptor
+    set +x
+    exec 5>&-
+
+    # parse out relevant part of the trace
+    local cmdEvalLines=()
+    while IFS= read -r line; do
+        line="${line/${PS4}/}"
+        test "${line}" == 'set +x' && continue
+        test "${line}" == '' && continue
+        cmdEvalLines+=("${line}")
+    done <"${cmdEvalTrace}"
+
+    if ! test ${retval} -eq 0; then
+        echo
+        echo_fail "command failed with ${retval}:"
+        printf "%s\n" "${cmdEvalLines[@]}"
+        echo_warn "command stdout:"
+        tail -n 32 "${out}"
+        echo_warn "command stderr:"
+        tail -n 32 "${err}"
+        echo
+    fi
+    if [[ -z ${LOGNAME} ]]; then
+        rm "${out}" "${err}" "${cmdEvalTrace}"
+    fi
+    return ${retval}
+}
+
+is_root_owned() {
+    local path=$1
+    local uid
+
+    if stat --version >/dev/null 2>&1; then
+        # GNU coreutils (Linux)
+        uid=$(stat -c '%u' "$path")
+    else
+        # BSD/macOS
+        uid=$(stat -f '%u' "$path")
+    fi
+
+    test "$uid" -eq 0
+}
+
+dump_arr() {
+    local arrayNames=("$@")
+    for arrayName in "${arrayNames[@]}"; do
+        declare -n array="${arrayName}"
+        arrayExpanded=("${array[@]}")
+
+        # skip showing single element arrays by default
+        if [[ ! ${#arrayExpanded[@]} -gt 1 ]]; then
+            if [[ ${SHOW_SINGLE} == true ]]; then
+                echo_info "${arrayName}='${arrayExpanded[*]}'"
+            else
+                continue
+            fi
+        fi
+
+        echo
+        # don't care that the variable has "ARR"
+        echo_info "${arrayName//"_ARR"/}"
+        printf "\t%s\n" "${arrayExpanded[@]}"
+    done
+}
+
+has_cmd() {
+    local cmds=("$@")
+    local rv=0
+    for cmd in "${cmds[@]}"; do
+        command -v "${cmd}" >/dev/null 2>&1 || rv=1
+    done
+
+    return ${rv}
+}
+
+missing_cmd() {
+    local cmds=("$@")
+    local rv=1
+    for cmd in "${cmds[@]}"; do
+        if ! has_cmd "${cmd}"; then
+            echo_warn "missing ${cmd}"
+            rv=0
+        fi
+    done
+
+    return ${rv}
+}
+
+bash_dirname() {
+    local tmp=${1:-.}
+
+    [[ $tmp != *[!/]* ]] && {
+        printf '/\n'
+        return
+    }
+
+    tmp=${tmp%%"${tmp##*[!/]}"}
+
+    [[ $tmp != */* ]] && {
+        printf '.\n'
+        return
+    }
+
+    tmp=${tmp%/*}
+    tmp=${tmp%%"${tmp##*[!/]}"}
+
+    printf '%s\n' "${tmp:-/}"
+}
+
+bash_basename() {
+    local tmp
+    path="$1"
+    suffix="${2:-''}"
+
+    tmp=${path%"${path##*[!/]}"}
+    tmp=${tmp##*/}
+    tmp=${tmp%"${suffix/"$tmp"/}"}
+
+    printf '%s\n' "${tmp:-/}"
+}
+
+bash_realpath() {
+    local file=$1
+    local dir
+
+    # If the file is already absolute
+    [[ $file == /* ]] && {
+        printf '%s\n' "$file"
+        return
+    }
+
+    # Otherwise: split into directory + basename
+    dir="$(bash_dirname "${file}")"
+    file="$(bash_basename "${file}")"
+
+    # If no directory component, use current directory
+    if [[ $dir == "$file" ]]; then
+        dir="$PWD"
+    else
+        # Save current dir, move into target dir, capture $PWD, then return
+        local oldpwd="$PWD"
+        cd "$dir" || return 1
+        dir="$PWD"
+        cd "$oldpwd" || return 1
+    fi
+
+    printf '%s/%s\n' "$dir" "$file"
+}
+
+line_contains() {
+    local line="$1"
+    local substr="$2"
+    if [[ $line == *"${substr}"* ]]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+line_starts_with() {
+    local line="$1"
+    local substr="$2"
+    if [[ $line == "${substr}"* ]]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+is_linux() {
+    line_contains "${OSTYPE}" 'linux'
+}
+
+is_darwin() {
+    line_contains "$(print_os)" darwin
+}
+
+is_windows() {
+    line_contains "$(print_os)" windows
+}
+
+is_android() {
+    line_contains "$(print_os)" android
+}
+
+print_os() {
+    # cached response
+    if [[ -n ${FB_OS} ]]; then
+        echo "${FB_OS}"
+        return 0
+    fi
+
+    unset FB_OS
+    if [[ -f /etc/os-release ]]; then
+        source /etc/os-release
+        FB_OS="${ID}"
+        if [[ ${VERSION_ID} != '' ]]; then
+            FB_OS+="-${VERSION_ID}"
+        fi
+        if line_starts_with "${FB_OS}" 'arch'; then
+            FB_OS='archlinux'
+        fi
+    else
+        FB_OS="$(uname -o)"
+    fi
+
+    # lowercase
+    FB_OS="${FB_OS,,}"
+
+    # special treatment for windows
+    if line_contains "${FB_OS}" 'windows' || line_contains "${FB_OS}" 'msys'; then
+        FB_OS='windows'
+    fi
+
+    echo "${FB_OS}"
+}
+
+is_positive_integer() {
+    local input="$1"
+    if [[ ${input} != ?(-)+([[:digit:]]) || ${input} -lt 0 ]]; then
+        echo_fail "${input} is not a positive integer"
+        return 1
+    fi
+    return 0
+}
+
+print_line_indent() {
+    local line="$1"
+    if [[ ${line} =~ ^( +) ]]; then
+        echo -n "${BASH_REMATCH[1]}"
+    fi
+}
+
+replace_line() {
+    local file="$1"
+    local search="$2"
+    local newLine="$3"
+    local newFile="${TMP_DIR}/$(bash_basename "${file}")"
+
+    test -f "${newFile}" && rm "${newFile}"
+    while IFS= read -r line; do
+        if line_contains "${line}" "${search}"; then
+            print_line_indent "${line}" >>"${newFile}"
+            echo -en "${newLine}" >>"${newFile}"
+            continue
+        fi
+        echo "${line}" >>"${newFile}"
+    done <"${file}"
+
+    cp "${newFile}" "${file}"
+}
+
+remove_line() {
+    local file="$1"
+    local search="$2"
+    replace_line "${file}" "${search}" ''
+}
+
+bash_sort() {
+    local arr=("$@")
+    local n=${#arr[@]}
+    local i j val1 val2
+
+    # Bubble sort, numeric comparison
+    for ((i = 0; i < n; i++)); do
+        for ((j = 0; j < n - i - 1; j++)); do
+            read -r val1 _ <<<"${arr[j]}"
+            read -r val2 _ <<<"${arr[j + 1]}"
+            if (("${val1}" > "${val2}")); then
+                local tmp=${arr[j]}
+                arr[j]=${arr[j + 1]}
+                arr[j + 1]=$tmp
+            fi
+        done
+    done
+
+    printf '%s\n' "${arr[@]}"
+}
+
+_start_spinner() {
+    local spinChars=(
+        "-"
+        '\'
+        "|"
+        "/"
+    )
+
+    sleep 1
+
+    while true; do
+        for ((ind = 0; ind < "${#spinChars[@]}"; ind++)); do
+            echo -ne "${spinChars[${ind}]}" '\b\b'
+            sleep .25
+        done
+    done
+}
+
+spinner() {
+    local action="$1"
+    local spinPidFile="${TMP_DIR}/.spinner-pid"
+    case "${action}" in
+    start)
+        test -f "${spinPidFile}" && rm "${spinPidFile}"
+
+        _start_spinner &
+        echo $! >"${spinPidFile}"
+        ;;
+    stop)
+        test -f "${spinPidFile}" && kill "$(<"${spinPidFile}")"
+        echo -ne ' \n'
+        ;;
+    esac
+}
+
+get_pkgconfig_version() {
+    local pkg="$1"
+    pkg-config --modversion "${pkg}"
+}
+
+using_cmake_4() {
+    local cmakeVersion
+    IFS=$' \t' read -r _ _ cmakeVersion <<<"$(command cmake --version)"
+    line_starts_with "${cmakeVersion}" 4
+}
+
+recreate_dir() {
+    local dirs=("$@")
+    for dir in "${dirs[@]}"; do
+        test -d "${dir}" && rm -rf "${dir}"
+        mkdir -p "${dir}" || return 1
+    done
+}
+
+ensure_dir() {
+    local dirs=("$@")
+    for dir in "${dirs[@]}"; do
+        test -d "${dir}" || mkdir -p "${dir}" || return 1
+    done
+}
+
+get_remote_head() {
+    local url="$1"
+    local remoteHEAD=''
+    IFS=$' \t' read -r remoteHEAD _ <<< \
+        "$(git ls-remote "${url}" HEAD)"
+    echo "${remoteHEAD}"
+}
+
+fb_max() {
+    local a="$1"
+    local b="$2"
+    test "${a}" -gt "${b}" &&
+        echo "${a}" ||
+        echo "${b}"
+}
+
+print_padded() {
+    local str="$1"
+    local padding="$2"
+    echo -n "${str}"
+    for ((i = 0; i < padding - ${#str}; i++)); do
+        echo -n ' '
+    done
+}

lib/compile_opts.sh

@@ -3,21 +3,33 @@
 # variables used externally
 # shellcheck disable=SC2034
 
-# default compile options
+# compile option descriptions
+unset FB_COMP_OPTS_DESC
+declare -Ag FB_COMP_OPTS_DESC
 
-# clean build directories before building
-DEFAULT_CLEAN=true
-# enable link time optimization
+# default compile options
+FB_COMP_OPTS_DESC['CLEAN']='clean build directories before building'
+DEFAULT_CLEAN=ON
+
+FB_COMP_OPTS_DESC['LTO']='enable link time optimization'
 DEFAULT_LTO=ON
-# optimization level (0-3)
+
+FB_COMP_OPTS_DESC['PGO']='enable profile guided optimization'
+DEFAULT_PGO=OFF
+
+FB_COMP_OPTS_DESC['OPT']='optimization level (0-3)'
 DEFAULT_OPT=3
-# static or shared build
+
+FB_COMP_OPTS_DESC['STATIC']='static or shared build'
 DEFAULT_STATIC=ON
-# architecture type (x86-64-v{1,2,3,4}, armv8-a, etc)
+
+FB_COMP_OPTS_DESC['ARCH']='architecture type (x86-64-v{1,2,3,4}, armv8-a, etc)'
 DEFAULT_ARCH=native
-# prefix to install to, default is local install
+
+FB_COMP_OPTS_DESC['PREFIX']='prefix to install to, default is local install in ./gitignore/sysroot'
 DEFAULT_PREFIX='local'
-# configure what ffmpeg enables
+
+FB_COMP_OPTS_DESC['ENABLE']='configure what ffmpeg enables'
 DEFAULT_ENABLE="\
 libsvtav1_psy \
 libopus \
@@ -28,13 +40,14 @@ libvmaf \
 libx264 \
 libx265 \
 libwebp \
-libmp3lame \
+libvpx \
+libass \
+libvorbis \
+libmp3lame\
 "
 
 # user-overridable compile option variable names
-FB_COMP_OPTS=(
-	CLEAN LTO OPT STATIC ARCH PREFIX ENABLE
-)
+FB_COMP_OPTS=("${!FB_COMP_OPTS_DESC[@]}")
 
 # sets FB_COMP_OPTS to allow for user-overriding
 check_compile_opts_override() {

lib/docker.sh

@@ -11,8 +11,7 @@ DOCKER_WORKDIR='/workdir'
 set_docker_run_flags() {
     local cargo_git="${IGN_DIR}/cargo/git"
     local cargo_registry="${IGN_DIR}/cargo/registry"
-	test -d "${cargo_git}" || mkdir -p "${cargo_git}"
-	test -d "${cargo_registry}" || mkdir -p "${cargo_registry}"
+    ensure_dir "${cargo_git}" "${cargo_registry}"
     DOCKER_RUN_FLAGS=(
         --rm
         -v "${cargo_git}:/root/.cargo/git"
@@ -20,6 +19,7 @@ set_docker_run_flags() {
         -v "${REPO_DIR}:${REPO_DIR}"
         -w "${REPO_DIR}"
         -e "DEBUG=${DEBUG}"
+        -t
     )
     for opt in "${FB_COMP_OPTS[@]}"; do
         declare -n defOptVal="DEFAULT_${opt}"
@@ -43,10 +43,10 @@ get_docker_image_tag() {
     local image="$1"
     local tag=''
     case "${image}" in
-	ubuntu) tag='ubuntu:24.04@sha256:9cbed754112939e914291337b5e554b07ad7c392491dba6daf25eef1332a22e8' ;;
-	debian) tag='debian:13@sha256:833c135acfe9521d7a0035a296076f98c182c542a2b6b5a0fd7063d355d696be' ;;
-	fedora) tag='fedora:42@sha256:6af051ad0a294182c3a957961df6203d91f643880aa41c2ffe3d1302e7505890' ;;
-	archlinux) tag='ogarcia/archlinux:latest@sha256:b93f426b23cd0ea0e1befd7d58a26eaf3e6eda3c154c0e8dd75145d11c21304c' ;;
+    ubuntu) tag='ubuntu:24.04@sha256:c35e29c9450151419d9448b0fd75374fec4fff364a27f176fb458d472dfc9e54' ;;
+    debian) tag='debian:13@sha256:0d01188e8dd0ac63bf155900fad49279131a876a1ea7fac917c62e87ccb2732d' ;;
+    fedora) tag='fedora:42@sha256:b3d16134560afa00d7cc2a9e4967eb5b954512805f3fe27d8e70bbed078e22ea' ;;
+    archlinux) tag='ogarcia/archlinux:latest@sha256:1d70273180e43b1f51b41514bdaa73c61f647891a53a9c301100d5c4807bf628' ;;
     esac
     echo "${tag}"
 }
@@ -100,7 +100,7 @@ docker_login() {
 }
 
 FB_FUNC_NAMES+=('docker_build_image')
-FB_FUNC_DESCS['docker_build_image']='build docker image with required dependencies pre-installed'
+FB_FUNC_DESCS['docker_build_image']='build a docker image with the required dependencies pre-installed'
 FB_FUNC_COMPLETION['docker_build_image']="${VALID_DOCKER_IMAGES[*]}"
 docker_build_image() {
     local image="$1"
@@ -111,7 +111,7 @@ docker_build_image() {
     echo_info "sourcing package manager for ${image}"
     local dockerDistro="$(get_docker_image_tag "${image}")"
     # specific file for evaluated package manager info
-	distroPkgMgr="${DOCKER_DIR}/$(bash_basename "${image}")-pkg_mgr"
+    local distroPkgMgr="${DOCKER_DIR}/$(bash_basename "${image}")-pkg_mgr"
     # get package manager info
     docker run \
         "${DOCKER_RUN_FLAGS[@]}" \
@@ -122,25 +122,14 @@ docker_build_image() {
     # shellcheck disable=SC1090
     source "${distroPkgMgr}"
 
-	dockerfile="${DOCKER_DIR}/Dockerfile_$(bash_basename "${image}")"
+    local dockerfile="${DOCKER_DIR}/Dockerfile_$(bash_basename "${image}")"
+    local embedPath='/Dockerfile'
     {
         echo "FROM ${dockerDistro}"
         echo 'SHELL ["/bin/bash", "-c"]'
         echo 'RUN ln -sf /bin/bash /bin/sh'
         echo 'ENV DEBIAN_FRONTEND=noninteractive'
-		# arch is rolling release, so highly likely
-		# an updated is required between pkg changes
-		if line_contains "${dockerDistro}" 'arch'; then
-			local archRuns=''
-			archRuns+="${pkg_mgr_update}"
-			archRuns+=" && ${pkg_mgr_upgrade}"
-			archRuns+=" && ${pkg_install} ${req_pkgs[*]}"
-			echo "RUN ${archRuns}"
-		else
-			echo "RUN ${pkg_mgr_update}"
-			echo "RUN ${pkg_mgr_upgrade}"
-			printf "RUN ${pkg_install} %s\n" "${req_pkgs[@]}"
-		fi
+        echo "RUN ${pkg_mgr_update} && ${pkg_mgr_upgrade} && ${pkg_install} ${req_pkgs[*]}"
 
         # ENV for pipx/rust
         echo 'ENV PIPX_HOME=/root/.local'
@@ -169,7 +158,7 @@ docker_build_image() {
         echo "RUN pipx install virtualenv"
         # rust
         local rustupVersion='1.28.2'
-		local rustcVersion='1.88.0'
+        local rustcVersion='1.90.0'
         local rustupTarball="rustup-${rustupVersion}.tar.gz"
         local rustupTarballPath="${DOCKER_DIR}/${rustupTarball}"
         if [[ ! -f ${rustupTarballPath} ]]; then
@@ -177,19 +166,40 @@ docker_build_image() {
         fi
 
         echo "ADD ${rustupTarball} /tmp/"
-		local cargoInst="\
-		cd /tmp/rustup-${rustupVersion} \
-		&& bash rustup-init.sh -y --default-toolchain=${rustcVersion}"
-		echo "RUN ${cargoInst}"
+        echo "RUN cd /tmp/rustup-${rustupVersion} && bash rustup-init.sh -y --default-toolchain=${rustcVersion}"
         # install cargo-binstall
         echo "RUN curl -L --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/cargo-bins/cargo-binstall/main/install-from-binstall-release.sh | bash"
         # install cargo-c
         echo "RUN cargo-binstall -y cargo-c"
 
+        # final mods for PS1
+        echo
+        echo 'USER root'
+        echo "RUN echo \"PS1='id=\\\$(id -u)@${image}:\w\\$ '\" >> /etc/bash.bashrc"
+        echo 'USER 65534:65534'
+        echo
+
+        # embed dockerfile into docker image itself
+        # shellcheck disable=SC2094
+        echo "COPY $(bash_basename "${dockerfile}") ${embedPath}"
+
         echo "WORKDIR ${DOCKER_WORKDIR}"
 
     } >"${dockerfile}"
 
+    # docker buildx is too aggressive with invalidating
+    # build layer caches. Instead of relying on docker
+    # to check for when to rebuild, compare the to-build
+    # dockerfile with the embedded dockerfile
+    local oldDockerfile="${dockerfile}.old"
+    docker_run_image "${image}" cp "${embedPath}" "${oldDockerfile}"
+    if diff "${dockerfile}" "${oldDockerfile}"; then
+        echo_pass "no dockerfile changes detected, skipping rebuild"
+        return 0
+    else
+        echo_warn "dockerfile changes detected, proceeding with build"
+    fi
+
     image_tag="$(set_distro_image_tag "${image}")"
     docker buildx build \
         --platform "${PLATFORM}" \
@@ -207,9 +217,6 @@ docker_build_image() {
             -f "${dockerfile}" \
             "${DOCKER_DIR}" || return 1
     fi
-
-	# FIXME uncomment
-	# docker system prune -f
 }
 
 FB_FUNC_NAMES+=('docker_save_image')
@@ -237,13 +244,12 @@ docker_load_image() {
     echo_info "loading docker image for ${image_tag}"
     local archive="${DOCKER_DIR}/$(docker_image_archive_name "${image_tag}")"
     test -f "$archive" || return 1
-	zstdcat -T0 "$archive" |
-		docker load || return 1
+    zstdcat -T0 "$archive" | docker load || return 1
     docker system prune -f
 }
 
 FB_FUNC_NAMES+=('docker_run_image')
-FB_FUNC_DESCS['docker_run_image']='run docker image with given flags'
+FB_FUNC_DESCS['docker_run_image']='run a docker image with the given arguments'
 FB_FUNC_COMPLETION['docker_run_image']="${VALID_DOCKER_IMAGES[*]}"
 docker_run_image() {
     local image="$1"
@@ -259,7 +265,7 @@ docker_run_image() {
         runCmd+=("${cmd[@]}")
     fi
 
-	image_tag="$(set_distro_image_tag "${image}")"
+    local image_tag="$(set_distro_image_tag "${image}")"
 
     # if a docker registry is defined, pull from it
     if [[ ${DOCKER_REGISTRY} != '' ]]; then
@@ -269,16 +275,16 @@ docker_run_image() {
         docker tag "${DOCKER_REGISTRY}/${image_tag}" "${image_tag}"
     fi
 
-	echo_info "running ffmpeg build with ${image_tag}"
+    echo_info "running docker image ${image_tag}"
     docker run \
         "${DOCKER_RUN_FLAGS[@]}" \
         -u "$(id -u):$(id -g)" \
         "${image_tag}" \
-		"${runCmd[@]}" || return 1
+        "${runCmd[@]}"
 
-	docker system prune -f
-
-	return 0
+    local rv=$?
+    docker image prune -f
+    return ${rv}
 }
 
 FB_FUNC_NAMES+=('build_with_docker')

lib/efg.sh

@@ -2,6 +2,7 @@
 
 efg_usage() {
     echo "efg -i input [options]"
+    echo -e "\t[-P NUM] set preset (default: ${PRESET})"
     echo -e "\t[-l NUM] low value (default: ${LOW})"
     echo -e "\t[-s NUM] step value (default: ${STEP})"
     echo -e "\t[-h NUM] high value (default: ${HIGH})"
@@ -12,10 +13,11 @@ efg_usage() {
 }
 
 set_efg_opts() {
-	local opts='pl:s:h:i:IU'
+    local opts='P:pl:s:h:i:IU'
     local numOpts=${#opts}
     # default values
     unset INPUT
+    PRESET=10
     LOW=0
     STEP=1
     HIGH=30
@@ -25,23 +27,30 @@ set_efg_opts() {
     local minOpt=1
     # using all
     local maxOpt=${numOpts}
-	test $# -lt ${minOpt} && echo_fail "not enough arguments" && efg_usage && return 1
-	test $# -gt ${maxOpt} && echo_fail "too many arguments" && efg_usage && return 1
+    test $# -lt ${minOpt} && efg_usage && return 1
+    test $# -gt ${maxOpt} && efg_usage && return 1
     local OPTARG OPTIND
     while getopts "${opts}" flag; do
         case "${flag}" in
+        P)
+            if ! is_positive_integer "${OPTARG}"; then
+                efg_usage
+                return 1
+            fi
+            PRESET="${OPTARG}"
+            ;;
         I)
             echo_warn "attempting install"
             sudo ln -sf "${SCRIPT_DIR}/efg.sh" \
                 "${EFG_INSTALL_PATH}" || return 1
             echo_pass "succesfull install"
-			exit 0
+            return ${FUNC_EXIT_SUCCESS}
             ;;
         U)
             echo_warn "attempting uninstall"
             sudo rm "${EFG_INSTALL_PATH}" || return 1
             echo_pass "succesfull uninstall"
-			exit 0
+            return ${FUNC_EXIT_SUCCESS}
             ;;
         i)
             if [[ $# -lt 2 ]]; then
@@ -126,8 +135,7 @@ efg_segment() {
     local segmentBitrates=()
 
     # clean workspace
-	test -d "${EFG_DIR}" && rm -rf "${EFG_DIR}"
-	mkdir -p "${EFG_DIR}"
+    recreate_dir "${EFG_DIR}" || return 1
 
     # split up video into segments based on start times
     for ((time = 0; time < duration; time += timeBetweenSegments)); do
@@ -170,20 +178,26 @@ efg_segment() {
 }
 
 efg_encode() {
-	echo -n >"${GRAIN_LOG}"
+    local grainLogWIP="${GRAIN_LOG}.wip"
+    echo -n >"${grainLogWIP}"
     for vid in "${EFG_DIR}/"*.mkv; do
-		echo "file: ${vid}" >>"${GRAIN_LOG}"
+        echo "file: ${vid}" >>"${grainLogWIP}"
         for ((grain = LOW; grain <= HIGH; grain += STEP)); do
             local file="$(bash_basename "${vid}")"
             local out="${EFG_DIR}/grain-${grain}-${file}"
             echo_info "encoding ${file} with grain ${grain}"
-			echo_if_fail encode -P 10 -g ${grain} -i "${vid}" "${out}"
-			echo -e "\tgrain: ${grain}, bitrate: $(get_avg_bitrate "${out}")" >>"${GRAIN_LOG}"
-			rm "${out}"
+            echo_if_fail encode -P "${PRESET}" -g ${grain} -i "${vid}" "${out}" || return 1
+            echo -e "\tgrain: ${grain}, bitrate: $(get_avg_bitrate "${out}")" >>"${grainLogWIP}"
+            rm "${out}" || return 1
         done
+        # remove segment once complete
+        rm "${vid}" || return 1
     done
 
-	less "${GRAIN_LOG}"
+    # atomic move of grain log
+    mv "${grainLogWIP}" "${GRAIN_LOG}" || return 1
+
+    echo "$(<"${GRAIN_LOG}")"
 }
 
 efg_plot() {
@@ -245,8 +259,14 @@ efg() {
     # encode N highest-bitrate segments
     ENCODE_SEGMENTS=5
 
-	set_efg_opts "$@" || return 1
-	test -d "${EFG_DIR}" || mkdir "${EFG_DIR}"
+    set_efg_opts "$@"
+    local ret=$?
+    if [[ ${ret} -eq ${FUNC_EXIT_SUCCESS} ]]; then
+        return 0
+    elif [[ ${ret} -ne 0 ]]; then
+        return ${ret}
+    fi
+    ensure_dir "${EFG_DIR}"
 
     GRAIN_LOG="${EFG_DIR}/${LOW}-${STEP}-${HIGH}-grains.txt"
 

lib/encode.sh

@@ -1,24 +1,25 @@
 #!/usr/bin/env bash
 
-unmap_streams() {
+# sets unmapStreams
+set_unmap_streams() {
     local file="$1"
     local unmapFilter='bin_data|jpeg|png'
-	local unmap=()
     local streamsStr
+    unmapStreams=()
     streamsStr="$(get_num_streams "${file}")" || return 1
     mapfile -t streams <<<"${streamsStr}" || return 1
     for stream in "${streams[@]}"; do
         if [[ "$(get_stream_codec "${file}" "${stream}")" =~ ${unmapFilter} ]]; then
-			unmap+=("-map" "-0:${stream}")
+            unmapStreams+=("-map" "-0:${stream}")
         fi
     done
-	echo "${unmap[@]}"
 }
 
+# sets audioParams
 set_audio_params() {
     local file="$1"
-	local audioParams=()
     local videoLang
+    audioParams=()
     videoLang="$(get_stream_lang "${file}" 'v:0')" || return 1
     for stream in $(get_num_streams "${file}" 'a'); do
         local numChannels codec lang
@@ -37,28 +38,40 @@ set_audio_params() {
             )
         elif [[ ${codec} == 'opus' ]]; then
             audioParams+=(
-				"-c:${stream}"
+                "-c:${OUTPUT_INDEX}"
                 "copy"
             )
+            OUTPUT_INDEX=$((OUTPUT_INDEX + 1))
         else
             audioParams+=(
-				"-filter:${stream}"
+                "-filter:${OUTPUT_INDEX}"
                 "aformat=channel_layouts=7.1|5.1|stereo|mono"
-				"-c:${stream}"
+                "-c:${OUTPUT_INDEX}"
                 "libopus"
-				"-b:${stream}"
+                "-b:${OUTPUT_INDEX}"
                 "${channelBitrate}k"
             )
+            OUTPUT_INDEX=$((OUTPUT_INDEX + 1))
         fi
     done
-	echo "${audioParams[@]}"
 }
 
+# sets subtitleParams
 set_subtitle_params() {
     local file="$1"
     local convertCodec='eia_608'
     local keepLang='eng'
-	local subtitleParams=()
+
+    local defaultTextCodec
+    if [[ ${SAME_CONTAINER} == false && ${FILE_EXT} == 'mkv' ]]; then
+        defaultTextCodec='srt'
+        convertCodec+='|mov_text'
+    else
+        defaultTextCodec='mov_text'
+        convertCodec+='|srt'
+    fi
+
+    subtitleParams=()
     for stream in $(get_num_streams "${file}" 's'); do
         local codec lang
         codec="$(get_stream_codec "${file}" "${stream}")" || return 1
@@ -68,11 +81,11 @@ set_subtitle_params() {
                 '-map'
                 "-0:${stream}"
             )
-		elif [[ ${codec} == "${convertCodec}" ]]; then
-			subtitleParams+=("-c:${stream}" "srt")
+        elif [[ ${codec} =~ ${convertCodec} ]]; then
+            subtitleParams+=("-c:${OUTPUT_INDEX}" "${defaultTextCodec}")
+            OUTPUT_INDEX=$((OUTPUT_INDEX + 1))
         fi
     done
-	echo "${subtitleParams[@]}"
 }
 
 get_encode_versions() {
@@ -86,11 +99,11 @@ get_encode_versions() {
     # shellcheck disable=SC2155
     local output="$(ffmpeg -version 2>&1)"
     while read -r line; do
-		if line_contains "${line}" 'ffmpeg='; then
+        if line_starts_with "${line}" 'ffmpeg='; then
             ffmpegVersion="${line}"
-		elif line_contains "${line}" 'libsvtav1_psy=' || line_contains "${line}" 'libsvtav1='; then
+        elif line_starts_with "${line}" 'libsvtav1'; then
             videoEncVersion="${line}"
-		elif line_contains "${line}" 'libopus='; then
+        elif line_starts_with "${line}" 'libopus='; then
             audioEncVersion="${line}"
         fi
     done <<<"${output}"
@@ -139,10 +152,10 @@ encode_usage() {
     echo -e "\t[-p] print the command instead of executing it (default: ${PRINT_OUT})"
     echo -e "\t[-c] use cropdetect (default: ${CROP})"
     echo -e "\t[-d] enable dolby vision (default: ${DV_TOGGLE})"
-	echo -e "\t[-v] Print relevant version info"
-	echo -e "\t[-s] use same container as input, default is mkv"
-	echo -e "\n\t[output] if unset, defaults to ${HOME}/"
-	echo -e "\n\t[-u] update script (git pull at ${REPO_DIR})"
+    echo -e "\t[-v] print relevant version info"
+    echo -e "\t[-s] use same container as input, default is convert to mkv"
+    echo -e "\n\t[output] if unset, defaults to \${PWD}/av1-input-file-name.mkv"
+    echo -e "\n\t[-u] update script (git pull ffmpeg-builder)"
     echo -e "\t[-I] system install at ${ENCODE_INSTALL_PATH}"
     echo -e "\t[-U] uninstall from ${ENCODE_INSTALL_PATH}"
     return 0
@@ -163,37 +176,37 @@ set_encode_opts() {
     PRINT_OUT=false
     DV_TOGGLE=false
     ENCODE_INSTALL_PATH='/usr/local/bin/encode'
-	local sameContainer="false"
+    SAME_CONTAINER="false"
     # only using -I/U
     local minOpt=1
     # using all + output name
     local maxOpt=$((numOpts + 1))
-	test $# -lt ${minOpt} && echo_fail "not enough arguments" && encode_usage && return 1
-	test $# -gt ${maxOpt} && echo_fail "too many arguments" && encode_usage && return 1
+    test $# -lt ${minOpt} && encode_usage && return 1
+    test $# -gt ${maxOpt} && encode_usage && return 1
     local optsUsed=0
     local OPTARG OPTIND
     while getopts "${opts}" flag; do
         case "${flag}" in
         u)
-			encode_update
-			exit $?
+            encode_update || return 1
+            return ${FUNC_EXIT_SUCCESS}
             ;;
         I)
             echo_warn "attempting install"
             sudo ln -sf "${SCRIPT_DIR}/encode.sh" \
                 "${ENCODE_INSTALL_PATH}" || return 1
             echo_pass "succesfull install"
-			exit 0
+            return ${FUNC_EXIT_SUCCESS}
             ;;
         U)
             echo_warn "attempting uninstall"
             sudo rm "${ENCODE_INSTALL_PATH}" || return 1
             echo_pass "succesfull uninstall"
-			exit 0
+            return ${FUNC_EXIT_SUCCESS}
             ;;
         v)
-			get_encode_versions print
-			exit $?
+            get_encode_versions print || return 1
+            return ${FUNC_EXIT_SUCCESS}
             ;;
         i)
             if [[ $# -lt 2 ]]; then
@@ -217,7 +230,7 @@ set_encode_opts() {
             optsUsed=$((optsUsed + 1))
             ;;
         s)
-			sameContainer=true
+            SAME_CONTAINER=true
             optsUsed=$((optsUsed + 1))
             ;;
         g)
@@ -225,7 +238,7 @@ set_encode_opts() {
                 encode_usage
                 return 1
             fi
-			GRAIN="film-grain=${OPTARG}:film-grain-denoise=1:adaptive-film-grain=1:"
+            GRAIN="film-grain=${OPTARG}:film-grain-denoise=1:"
             optsUsed=$((optsUsed + 2))
             ;;
         P)
@@ -240,7 +253,7 @@ set_encode_opts() {
             if ! is_positive_integer "${OPTARG}" || test ${OPTARG} -gt 63; then
                 echo_fail "${OPTARG} is not a valid CRF value (0-63)"
                 encode_usage
-				exit 1
+                return 1
             fi
             CRF="${OPTARG}"
             OPTS_USED=$((OPTS_USED + 2))
@@ -258,11 +271,11 @@ set_encode_opts() {
         OUTPUT="${*: -1}"
     else
         local basename="$(bash_basename "${INPUT}")"
-		OUTPUT="${HOME}/av1-${basename}"
+        OUTPUT="${PWD}/av1-${basename}"
     fi
 
     # use same container for output
-	if [[ $sameContainer == "true" ]]; then
+    if [[ $SAME_CONTAINER == "true" ]]; then
         local fileFormat
         fileFormat="$(get_file_format "${INPUT}")" || return 1
         FILE_EXT=''
@@ -299,6 +312,9 @@ set_encode_opts() {
 gen_encode_script() {
     local genScript="${TMP_DIR}/$(bash_basename "${OUTPUT}").sh"
 
+    # global output index number to increment
+    OUTPUT_INDEX=0
+
     # single string params
     local params=(
         INPUT
@@ -323,11 +339,13 @@ gen_encode_script() {
         "spy-rd=1"
         "psy-rd=1"
         "sharpness=3"
-		"enable-overlays=1"
+        "enable-overlays=0"
+        "hbd-mds=1"
         "scd=1"
         "fast-decode=1"
         "enable-variance-boost=1"
         "enable-qm=1"
+        "chroma-qm-min-10"
         "qm-min=4"
         "qm-max=15"
     )
@@ -337,7 +355,7 @@ gen_encode_script() {
 
     # arrays
     local arrays=(
-		unmap
+        unmapStreams
         audioParams
         videoParams
         metadata
@@ -348,28 +366,42 @@ gen_encode_script() {
         "-crf" '${CRF}' "-preset" '${PRESET}' "-g" "240"
     )
     local ffmpegParams=(
+        '-hide_banner'
         '-i' '${INPUT}'
-		'-y' '-map' '0'
+        '-y'
+        '-map' '0'
         '-c:s' 'copy'
     )
 
+    # set video params
+    local inputVideoCodec="$(get_stream_codec "${INPUT}" 'v:0')"
+    if [[ ${inputVideoCodec} == 'av1' ]]; then
+        ffmpegParams+=(
+            "-c:v:${OUTPUT_INDEX}" 'copy'
+        )
+    else
+        ffmpegParams+=(
+            '-pix_fmt' 'yuv420p10le'
+            "-c:v:${OUTPUT_INDEX}" 'libsvtav1' '${videoParams[@]}'
+            '-svtav1-params' '${svtAv1Params}'
+        )
+    fi
+    OUTPUT_INDEX=$((OUTPUT_INDEX + 1))
+
     # these values may be empty
     local unmapStr audioParamsStr subtitleParamsStr
-	unmapStr="$(unmap_streams "${INPUT}")" || return 1
-	audioParamsStr="$(set_audio_params "${INPUT}")" || return 1
-	subtitleParamsStr="$(set_subtitle_params "${INPUT}")" || return 1
+    set_unmap_streams "${INPUT}" || return 1
+    set_audio_params "${INPUT}" || return 1
+    set_subtitle_params "${INPUT}" || return 1
 
-	unmap=(${unmapStr})
-	if [[ ${unmap[*]} != '' ]]; then
-		ffmpegParams+=('${unmap[@]}')
+    if [[ ${unmapStreams[*]} != '' ]]; then
+        ffmpegParams+=('${unmapStreams[@]}')
     fi
 
-	audioParams=(${audioParamsStr})
     if [[ ${audioParams[*]} != '' ]]; then
         ffmpegParams+=('${audioParams[@]}')
     fi
 
-	subtitleParams=(${subtitleParamsStr})
     if [[ ${subtitleParams[*]} != '' ]]; then
         ffmpegParams+=('${subtitleParams[@]}')
     fi
@@ -378,19 +410,6 @@ gen_encode_script() {
         ffmpegParams+=('-vf' '${crop}')
     fi
 
-	local inputVideoCodec="$(get_stream_codec "${INPUT}" 'v:0')"
-	if [[ ${inputVideoCodec} == 'av1' ]]; then
-		ffmpegParams+=(
-			'-c:v' 'copy'
-		)
-	else
-		ffmpegParams+=(
-			'-pix_fmt' 'yuv420p10le'
-			'-c:v' 'libsvtav1' '${videoParams[@]}'
-			'-svtav1-params' '${svtAv1Params}'
-		)
-	fi
-
     get_encode_versions || return 1
     local metadata=(
         '-metadata' '${encodeVersion}'
@@ -430,7 +449,7 @@ gen_encode_script() {
         echo 'ffmpeg "${ffmpegParams[@]}" -dolbyvision 0 "${OUTPUT}" || exit 1'
 
         # track-stats and clear title
-		if [[ ${FILE_EXT} == 'mkv' ]]; then
+        if [[ ${FILE_EXT} == 'mkv' ]] && has_cmd mkvpropedit; then
             {
                 echo
                 echo 'mkvpropedit "${OUTPUT}" --add-track-statistics-tags'
@@ -454,6 +473,12 @@ FB_FUNC_NAMES+=('encode')
 # shellcheck disable=SC2034
 FB_FUNC_DESCS['encode']='encode a file using libsvtav1_psy and libopus'
 encode() {
-	set_encode_opts "$@" || return 1
+    set_encode_opts "$@"
+    local ret=$?
+    if [[ ${ret} -eq ${FUNC_EXIT_SUCCESS} ]]; then
+        return 0
+    elif [[ ${ret} -ne 0 ]]; then
+        return ${ret}
+    fi
     gen_encode_script || return 1
 }

lib/ffmpeg.sh

@@ -126,3 +126,44 @@ get_stream_lang() {
         -of default=noprint_wrappers=1:nokey=1 \
         "${file}"
 }
+
+gen_video() {
+    local outFile="$1"
+    local addFlags=()
+    shift
+
+    local vf="format=yuv420p10le"
+    for arg in "$@"; do
+        case "${arg}" in
+        '1080p') resolution='1920x1080' ;;
+        '2160p') resolution='3840x2160' ;;
+        'grain=yes') vf+=",noise=alls=15:allf=t+u" ;;
+        'hdr=yes')
+            local colorPrimaries='bt2020'
+            local colorTrc='smpte2084'
+            local colorspace='bt2020nc'
+            vf+=",setparams=color_primaries=${colorPrimaries}:color_trc=${colorTrc}:colorspace=${colorspace}"
+            addFlags+=(
+                -color_primaries "${colorPrimaries}"
+                -color_trc "${colorTrc}"
+                -colorspace "${colorspace}"
+                -metadata:s:v:0 "mastering_display_metadata=G(13250,34500)B(7500,3000)R(34000,16000)WP(15635,16450)L(10000000,1)"
+                -metadata:s:v:0 "content_light_level=1000,400"
+            )
+            ;;
+        *) echo_fail "bad arg ${arg}" && return 1 ;;
+        esac
+    done
+
+    echo_if_fail ffmpeg -y \
+        -hide_banner \
+        -f lavfi \
+        -i "testsrc2=size=${resolution}:rate=24:duration=5" \
+        -vf "${vf}" \
+        -c:v ffv1 \
+        -level 3 \
+        -g 1 \
+        -color_range tv \
+        "${addFlags[@]}" \
+        "${outFile}"
+}

lib/install_deps.sh

@@ -4,7 +4,11 @@
 determine_pkg_mgr() {
     # sudo used externally
     # shellcheck disable=SC2034
-	test "$(id -u)" -eq 0 && SUDO='' || SUDO='sudo '
+    if is_windows || test "$(id -u)" -eq 0; then
+        SUDO=''
+    else
+        SUDO='sudo '
+    fi
 
     # pkg-mgr update-cmd upgrade-cmd install-cmd check-cmd
     # shellcheck disable=SC2016
@@ -14,7 +18,6 @@ brew:brew update:brew upgrade:brew install:brew list --formula ${pkg}
 apt-get:${SUDO}apt-get update:${SUDO}apt-get upgrade -y:${SUDO}apt-get install -y:dpkg -l ${pkg}
 pacman:${SUDO}pacman -Syy:${SUDO}pacman -Syu --noconfirm:${SUDO}pacman -S --noconfirm --needed:pacman -Qi ${pkg}
 dnf:${SUDO}dnf check-update || true:${SUDO}dnf upgrade --refresh -y:${SUDO}dnf install -y:dnf list -q --installed ${pkg}
-winget:winget update:true:${SUDO}winget install:winget list ${pkg}
 '
     local supported_pkg_mgr=()
     unset pkg_mgr pkg_mgr_update pkg_mgr_upgrade pkg_install pkg_check
@@ -53,34 +56,35 @@ print_req_pkgs() {
     local brew_pkgs=(
         "${common_pkgs[@]}" pkgconf
         mkvtoolnix pipx uutils-coreutils
+        llvm lld
     )
     local common_linux_pkgs=(
         "${common_pkgs[@]}" clang valgrind
-		curl bc lshw xxd pkgconf sudo
+        curl bc lshw xxd pkgconf sudo llvm
     )
     # shellcheck disable=SC2034
     local apt_get_pkgs=(
-		"${common_linux_pkgs[@]}" build-essential
-		git-core libass-dev libfreetype6-dev
-		libsdl2-dev libva-dev libvdpau-dev
-		libvorbis-dev libxcb1-dev pipx
-		libxcb-shm0-dev libxcb-xfixes0-dev
-		zlib1g-dev libssl-dev ninja-build
-		gobjc++ mawk libnuma-dev libc6-dev
-		mediainfo mkvtoolnix libgtest-dev
+        "${common_linux_pkgs[@]}" pipx
+        build-essential libssl-dev gobjc++
+        mawk libc6-dev mediainfo ninja-build
+        mkvtoolnix libgtest-dev lld
+        libfontconfig-dev libglib2.0-dev
     )
     # shellcheck disable=SC2034
     local pacman_pkgs=(
         "${common_linux_pkgs[@]}" base-devel
-		python-pipx ninja numactl
+        python-pipx ninja lld mkvtoolnix-cli
+        glib2-devel
     )
     # shellcheck disable=SC2034
     local dnf_pkgs=(
         "${common_linux_pkgs[@]}" openssl-devel
         pipx ninja-build fontconfig-devel wget2
-		cpuinfo-devel glibc-static glibc-devel
-		libstdc++-static libstdc++-devel patch
-		numactl-devel
+        glibc-static glibc-devel patch
+        libstdc++-static libstdc++-devel
+        llvm-cmake-utils llvm-devel
+        llvm-static compiler-rt lld
+        mkvtoolnix glib2-static
     )
     # shellcheck disable=SC2034
     local pkg_pkgs=(
@@ -89,9 +93,38 @@ print_req_pkgs() {
         doxygen jq ccache gawk rust
         git gnuplot bison rsync ragel
         zip unzip gperf build-essential
-		binutils ninja
+        binutils ninja ndk-multilib-native-static
+        libandroid-posix-semaphore
+        libandroid-posix-semaphore-static
+        libandroid-shmem
+        libandroid-shmem-static
+    )
+    # shellcheck disable=SC2034
+    local msys_ucrt_pkgs=(
+        mingw-w64-ucrt-x86_64-toolchain
+        mingw-w64-ucrt-x86_64-autotools
+        mingw-w64-ucrt-x86_64-clang
+        mingw-w64-ucrt-x86_64-clang-libs
+        mingw-w64-ucrt-x86_64-cmake
+        mingw-w64-ucrt-x86_64-compiler-rt
+        mingw-w64-ucrt-x86_64-doxygen
+        mingw-w64-ucrt-x86_64-gcc-libs
+        mingw-w64-ucrt-x86_64-gperf
+        mingw-w64-ucrt-x86_64-itstool
+        mingw-w64-ucrt-x86_64-meson
+        mingw-w64-ucrt-x86_64-bc
+        mingw-w64-ucrt-x86_64-nasm
+        mingw-w64-ucrt-x86_64-yasm
+        mingw-w64-ucrt-x86_64-ccache
+        mingw-w64-ucrt-x86_64-rustup
+        mingw-w64-ucrt-x86_64-cargo-c
+        mingw-w64-ucrt-x86_64-perl
+        mingw-w64-ucrt-x86_64-perl-modules
     )
 
+    if is_windows; then
+        local pkg_mgr='msys_ucrt'
+    fi
     local req_pkgs_env_name="${pkg_mgr/-/_}_pkgs"
     declare -n req_pkgs="${req_pkgs_env_name}"
     local sorted_req_pkgs=($(printf '%s\n' "${req_pkgs[@]}" | sort -u))
@@ -131,6 +164,7 @@ check_for_req_pkgs() {
 
     echo_pass "packages from ${pkg_mgr} installed"
     has_cmd pipx || echo_if_fail python3 -m pip install --user pipx || return 1
+    has_cmd pipx || echo_if_fail python3 -m pipx ensurepath && source ~/.bashrc || return 1
     echo_if_fail pipx install virtualenv || return 1
     echo_if_fail pipx ensurepath || return 1
     has_cmd meson || echo_if_fail pipx install meson || return 1
@@ -151,7 +185,7 @@ check_for_req_pkgs() {
         fi
     fi
 
-	echo_if_fail cargo install cargo-c || return 1
+    has_cmd cargo-cbuild || echo_if_fail cargo install cargo-c || return 1
     echo_pass "cargo-c is installed"
     echo_pass "all required packages installed"
 

lib/package.sh

@@ -1,8 +1,8 @@
 #!/usr/bin/env bash
 
 check_for_package_cfg() {
-	local requiredCfg='ON:ON:3'
-	local currentCfg="${STATIC}:${LTO}:${OPT}"
+    local requiredCfg='ON:ON:ON:3'
+    local currentCfg="${STATIC}:${LTO}:${PGO}:${OPT}"
     if [[ ${currentCfg} == "${requiredCfg}" ]]; then
         return 0
     else
@@ -14,12 +14,10 @@ FB_FUNC_NAMES+=('package')
 FB_FUNC_DESCS['package']='package ffmpeg build'
 package() {
     local pkgDir="${IGN_DIR}/package"
-	test -d "${pkgDir}" && rm -rf "${pkgDir}"
+    recreate_dir "${pkgDir}" || return 1
     check_for_package_cfg || return 0
 
     echo_info "packaging"
-	mkdir "${pkgDir}" || return 1
-
     set_compile_opts || return 1
     cp "${PREFIX}/bin/ff"* "${pkgDir}/"
 

lib/pgo.sh

@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+
+PGO_DIR="${IGN_DIR}/pgo"
+PGO_PROFDATA="${PGO_DIR}/prof.profdata"
+gen_profdata() {
+    recreate_dir "${PGO_DIR}" || return 1
+    cd "${PGO_DIR}" || return 1
+    setup_pgo_clips || return 1
+    for vid in *.mkv; do
+        local args=()
+        # add precalculated grain amount based off of filename
+        line_contains "${vid}" 'grain' && args+=(-g 16)
+        # make fhd preset 2
+        line_contains "${vid}" 'fhd' && args+=(-P 2)
+
+        echo_info "encoding pgo vid: ${vid}"
+        LLVM_PROFILE_FILE="${PGO_DIR}/default_%p.profraw" \
+            echo_if_fail encode -i "${vid}" "${args[@]}" "encoded-${vid}" || return 1
+    done
+
+    # merge profraw into profdata
+    local mergeCmd=()
+    # darwin needs special invoke
+    if is_darwin; then
+        mergeCmd+=(xcrun)
+    fi
+
+    mergeCmd+=(
+        llvm-profdata
+        merge
+        "--output=${PGO_PROFDATA}"
+    )
+    "${mergeCmd[@]}" default*.profraw || return 1
+
+    return 0
+}
+
+setup_pgo_clips() {
+    local clips=(
+        "fhd-grainy.mkv 1080p,grain=yes"
+        "uhd.mkv 2160p"
+        "uhd-hdr.mkv 2160p,hdr=yes"
+    )
+    for clip in "${clips[@]}"; do
+        local genVid genVidArgs pgoFile genVidArgsArr
+        IFS=' ' read -r genVid genVidArgs <<<"${clip}"
+        # pgo path is separate
+        pgoFile="${PGO_DIR}/${genVid}"
+        genVid="${TMP_DIR}/${genVid}"
+        # create array of args split with ,
+        genVidArgsArr=(${genVidArgs//,/ })
+        # create generated vid without any profiling if needed
+        test -f "${genVid}" ||
+            LLVM_PROFILE_FILE='/dev/null' gen_video "${genVid}" "${genVidArgsArr[@]}" || return 1
+        # and move to the pgo directory
+        test -f "${pgoFile}" ||
+            cp "${genVid}" "${pgoFile}" || return 1
+
+    done
+}

lib/readme.sh

@@ -1,22 +1,148 @@
 #!/usr/bin/env bash
 
+make_bullet_points() {
+    for arg in "$@"; do
+        echo "- ${arg}"
+    done
+}
+
+gen_function_info() {
+    local funcName="$1"
+    echo "${FB_FUNC_DESCS[${funcName}]} using \`./scripts/${funcName}.sh\`"
+}
+
+gen_compile_opts_info() {
+    for opt in "${FB_COMP_OPTS[@]}"; do
+        declare -n defOptVal="DEFAULT_${opt}"
+        echo "- \`${opt}\`: ${FB_COMP_OPTS_DESC[${opt}]} (default: ${defOptVal})"
+    done
+}
+
 FB_FUNC_NAMES+=('gen_readme')
 FB_FUNC_DESCS['gen_readme']='generate project README.md'
 gen_readme() {
     local readme="${REPO_DIR}/README.md"
 
     echo "
-A collection of scripts for building ffmpeg and encoding content with the built ffmpeg
+# ffmpeg-builder
+A collection of scripts for building \`ffmpeg\` and encoding content with the built \`ffmpeg\`.
 
 Tested on:
 - linux x86_64/aarch64 on:
 $(printf '  - %s\n' "${VALID_DOCKER_IMAGES[@]}")
 - darwin aarch64
 
+With these scripts you can:
+1. $(gen_function_info install_deps)
+2. $(gen_function_info build)
+3. $(gen_function_info encode)
+4. $(gen_function_info efg)
+
+# Building
+This project supports multiple ways to build.
+
+## Configuration
+Configuration is done through environment variables.
+By default, this project will build a static \`ffmpeg\` binary in \`./gitignore/sysroot/bin/ffmpeg\`.
+The default enabled libraries included in the \`ffmpeg\` build are:
+$(make_bullet_points ${DEFAULT_ENABLE})
+
+The user-overridable compile options are:
+$(gen_compile_opts_info)
+
+Examples:
+- only build libsvtav1_psy and libopus: \`ENABLE='libsvtav1_psy libopus' ./scripts/build.sh\`
+- build shared libraries in custom path: \`PREFIX=/usr/local STATIC=OFF ./scripts/build.sh\` 
+- build without LTO at O1: \`LTO=OFF OPT=1 ./scripts/build.sh\`
+
+### Native build
+Make sure to $(gen_function_info install_deps). Then $(gen_function_info build).
+
+### Docker build
+1. choose a given distro from: \`${VALID_DOCKER_IMAGES[*]}\`.
+2. $(gen_function_info docker_build_image) \`<distro>\`.
+3. $(gen_function_info docker_run_image) \`<distro>\` \`./scripts/build.sh\`
+
+Docker builds support the same configuration options as native builds. For example to build \`ffmpeg\` on ubuntu with only \`libdav1d\` enabled:
 \`\`\`bash
-$(COLOR=OFF print_cmds)
+./scripts/docker_build_image.sh ubuntu
+ENABLE='libdav1d' ./scripts/docker_run_image.sh ubuntu ./scripts/build.sh
 \`\`\`
 
+# Encoding scripts
+The encoding scripts are designed to be installed to system paths for re-use via symbolic links back to this repo using the \`-I\` flag.
+
+## Encoding with svtav1-psy and opus
+\`\`\`bash
+$(encode)
+\`\`\`
+- Uses svtav1-psy for the video encoder.
+- Uses libopus for the audio encoder.
+- Skips re-encoding av1/opus streams.
+- Only maps audio streams that match the video stream language if the video stream has a defined language.
+- Only maps english subtitle streams.
+- Adds track statistics to the output mkv file and embeds the encoder versions to the output metadata. For example:
+\`\`\`
+ENCODE : aa4d7e6
+FFMPEG : 8.0
+LIBOPUS : 1.5.2
+LIBSVTAV1_PSY : 3.0.2-B
+SVTAV1_PARAMS : film-grain=8:film-grain-denoise=1:tune=0:...
+VIDEO_PARAMS : -crf 25 -preset 3 -g 240
+\`\`\`
+
+Example usage:
+- standard usage: \`encode -i input.mkv output.mkv\`
+- print out what will be executed without starting encoding: \`encode -i input.mkv -p\`
+- encode with film-grain synthesis value of 20 with denoising: \`encode -g 20 -i input.mkv\` 
+
+## Estimate film-grain
+\`\`\`bash
+$(efg)
+\`\`\`
+- Provides a way to estimate the ideal film-grain amount by encoding from low-high given values and the step amount.
+- Observing the point of diminishing returns, one can make an informed decision for a given film-grain value to choose.
+
+Example usage:
+- \`efg -i input.mkv -p\`
+\`\`\`
+  10000 +------------------------------------------------------------------------------------------------------------------------------------------+
+        |      **G*            +                      +                       +                      +                      +                      |
+        |          **                                    "/Volumes/External/ffmpeg-builder/gitignore/tmp/efg-matrix-reloaded.mkv/plot.dat" ***G*** |
+        |            *G**                                                                                                                          |
+        |                **G                                                                                                                       |
+   9000 |-+                 **                                                                                                                   +-|
+        |                     *G**                                                                                                                 |
+        |                         **G                                                                                                              |
+        |                            **                                                                                                            |
+        |                              *G*                                                                                                         |
+   8000 |-+                               **                                                                                                     +-|
+        |                                   *G**                                                                                                   |
+        |                                       **G                                                                                                |
+        |                                          **                                                                                              |
+        |                                            *G**                                                                                          |
+   7000 |-+                                              **G*                                                                                    +-|
+        |                                                    **                                                                                    |
+        |                                                      *G*                                                                                 |
+        |                                                         **G**                                                                            |
+   6000 |-+                                                            **G*                                                                      +-|
+        |                                                                  **                                                                      |
+        |                                                                    *G*                                                                   |
+        |                                                                       **G**                                                              |
+        |                                                                            **G*                                                          |
+   5000 |-+                                                                              **G**                                                   +-|
+        |                                                                                     **G****G*                                            |
+        |                                                                                              **G**                                       |
+        |                                                                                                   **G****G*                              |
+        |                                                                                                            **G****G*                     |
+   4000 |-+                                                                                                                   **G****G****G*     +-|
+        |                                                                                                                                   **G****|
+        |                                                                                                                                          |
+        |                                                                                                                                          |
+        |                      +                      +                       +                      +                      +                      |
+   3000 +------------------------------------------------------------------------------------------------------------------------------------------+
+        0                      5                      10                      15                     20                     25                     30
+\`\`\`
 " >"${readme}"
 
 }

lib/utils.sh

@@ -1,338 +0,0 @@
-#!/usr/bin/env bash
-
-# shellcheck disable=SC2034
-
-# ANSI colors
-RED='\e[0;31m'
-CYAN='\e[0;36m'
-GREEN='\e[0;32m'
-YELLOW='\e[0;33m'
-NC='\e[0m'
-
-# echo wrappers
-echo_wrapper() {
-	local args
-	if [[ $1 == '-n' ]]; then
-		args=("$1")
-		shift
-	fi
-	# COLOR is override for using ${color}
-	# shellcheck disable=SC2153
-	if [[ ${COLOR} == 'OFF' ]]; then
-		color=''
-		endColor=''
-	else
-		endColor="${NC}"
-	fi
-
-	echo -e "${args[@]}" "${color}${word:-''}${endColor}" "$@"
-}
-echo_fail() { color="${RED}" word="FAIL" echo_wrapper "$@"; }
-echo_info() { color="${CYAN}" word="INFO" echo_wrapper "$@"; }
-echo_pass() { color="${GREEN}" word="PASS" echo_wrapper "$@"; }
-echo_warn() { color="${YELLOW}" word="WARN" echo_wrapper "$@"; }
-echo_exit() {
-	echo_fail "$@"
-	exit 1
-}
-void() { echo "$@" >/dev/null; }
-
-echo_if_fail() {
-	local cmd=("$@")
-	local logName="${LOGNAME:-${RANDOM}}-"
-	local out="${TMP_DIR}/${logName}stdout"
-	local err="${TMP_DIR}/${logName}stderr"
-
-	# set trace to the cmdEvalTrace and open file descriptor
-	local cmdEvalTrace="${TMP_DIR}/${logName}cmdEvalTrace"
-	exec 5>"${cmdEvalTrace}"
-	export BASH_XTRACEFD=5
-
-	set -x
-	"${cmd[@]}" >"${out}" 2>"${err}"
-	local retval=$?
-
-	# unset and close file descriptor
-	set +x
-	exec 5>&-
-
-	# parse out relevant part of the trace
-	local cmdEvalLines=()
-	cmd=()
-	while IFS= read -r line; do
-		cmdEvalLines+=("${line}")
-	done <"${cmdEvalTrace}"
-	local cmdEvalLineNum=${#cmdEvalLines[@]}
-	for ((i = 1; i < cmdEvalLineNum - 2; i++)); do
-		local trimmedCmd="${cmdEvalLines[${i}]}"
-		trimmedCmd="${trimmedCmd/+ /}"
-		cmd+=("${trimmedCmd}")
-	done
-
-	if ! test ${retval} -eq 0; then
-		echo
-		echo_fail "command failed:"
-		printf "%s\n" "${cmd[@]}"
-		echo_warn "command output:"
-		tail -n 20 "${out}"
-		tail -n 20 "${err}"
-		echo
-	fi
-	if [[ -z ${LOGNAME} ]]; then
-		rm "${out}" "${err}" "${cmdEvalTrace}"
-	fi
-	return ${retval}
-}
-
-is_root_owned() {
-	local path=$1
-	local uid
-
-	if stat --version >/dev/null 2>&1; then
-		# GNU coreutils (Linux)
-		uid=$(stat -c '%u' "$path")
-	else
-		# BSD/macOS
-		uid=$(stat -f '%u' "$path")
-	fi
-
-	test "$uid" -eq 0
-}
-
-dump_arr() {
-	arr_name="$1"
-	declare -n arr
-	arr="${arr_name}"
-	arr_exp=("${arr[@]}")
-	test "${#arr_exp}" -gt 0 || return 0
-	echo
-	echo_info "${arr_name}"
-	printf "\t%s\n" "${arr_exp[@]}"
-}
-
-has_cmd() {
-	local cmds=("$@")
-	local rv=0
-	for cmd in "${cmds[@]}"; do
-		command -v "${cmd}" >/dev/null 2>&1 || rv=1
-	done
-
-	return ${rv}
-}
-
-missing_cmd() {
-	local cmds=("$@")
-	local rv=1
-	for cmd in "${cmds[@]}"; do
-		if ! has_cmd "${cmd}"; then
-			echo_warn "missing ${cmd}"
-			rv=0
-		fi
-	done
-
-	return ${rv}
-}
-
-bash_dirname() {
-	local tmp=${1:-.}
-
-	[[ $tmp != *[!/]* ]] && {
-		printf '/\n'
-		return
-	}
-
-	tmp=${tmp%%"${tmp##*[!/]}"}
-
-	[[ $tmp != */* ]] && {
-		printf '.\n'
-		return
-	}
-
-	tmp=${tmp%/*}
-	tmp=${tmp%%"${tmp##*[!/]}"}
-
-	printf '%s\n' "${tmp:-/}"
-}
-
-bash_basename() {
-	local tmp
-	path="$1"
-	suffix="${2:-''}"
-
-	tmp=${path%"${path##*[!/]}"}
-	tmp=${tmp##*/}
-	tmp=${tmp%"${suffix/"$tmp"/}"}
-
-	printf '%s\n' "${tmp:-/}"
-}
-
-bash_realpath() {
-	local file=$1
-	local dir
-
-	# If the file is already absolute
-	[[ $file == /* ]] && {
-		printf '%s\n' "$file"
-		return
-	}
-
-	# Otherwise: split into directory + basename
-	dir="$(bash_dirname "${file}")"
-	file="$(bash_basename "${file}")"
-
-	# If no directory component, use current directory
-	if [[ $dir == "$file" ]]; then
-		dir="$PWD"
-	else
-		# Save current dir, move into target dir, capture $PWD, then return
-		local oldpwd="$PWD"
-		cd "$dir" || return 1
-		dir="$PWD"
-		cd "$oldpwd" || return 1
-	fi
-
-	printf '%s/%s\n' "$dir" "$file"
-}
-
-line_contains() {
-	local line="$1"
-	local substr="$2"
-	if [[ $line == *"${substr}"* ]]; then
-		return 0
-	else
-		return 1
-	fi
-}
-
-line_starts_with() {
-	local line="$1"
-	local substr="$2"
-	if [[ $line == "${substr}"* ]]; then
-		return 0
-	else
-		return 1
-	fi
-}
-
-is_darwin() {
-	line_contains "$(print_os)" darwin
-}
-
-is_windows() {
-	line_contains "$(print_os)" windows
-}
-
-is_android() {
-	line_contains "$(print_os)" android
-}
-
-print_os() {
-	# cached response
-	if [[ -n ${FB_OS} ]]; then
-		echo "${FB_OS}"
-		return 0
-	fi
-
-	unset FB_OS
-	if [[ -f /etc/os-release ]]; then
-		source /etc/os-release
-		FB_OS="${ID}"
-		if [[ ${VERSION_ID} != '' ]]; then
-			FB_OS+="-${VERSION_ID}"
-		fi
-		if line_starts_with "${FB_OS}" 'arch'; then
-			FB_OS='archlinux'
-		fi
-	else
-		FB_OS="$(uname -o)"
-	fi
-
-	# lowercase
-	FB_OS="${FB_OS,,}"
-
-	# special treatment for windows
-	if line_contains "${FB_OS}" 'windows' || line_contains "${FB_OS}" 'msys'; then
-		FB_OS='windows'
-	fi
-
-	echo "${FB_OS}"
-}
-
-is_positive_integer() {
-	local input="$1"
-	if [[ ${input} != ?(-)+([[:digit:]]) || ${input} -lt 0 ]]; then
-		echo_fail "${input} is not a positive integer"
-		return 1
-	fi
-	return 0
-}
-
-replace_line() {
-	local file="$1"
-	local search="$2"
-	local newLine="$3"
-	local newFile="${TMP_DIR}/$(bash_basename "${file}")"
-
-	test -f "${newFile}" && rm "${newFile}"
-	while read -r line; do
-		if line_contains "${line}" "${search}"; then
-			echo -en "${newLine}" >>"${newFile}"
-			continue
-		fi
-		echo "${line}" >>"${newFile}"
-	done <"${file}"
-
-	cp "${newFile}" "${file}"
-}
-
-remove_line() {
-	local file="$1"
-	local search="$2"
-	replace_line "${file}" "${search}" ''
-}
-
-bash_sort() {
-	local arr=("$@")
-	local n=${#arr[@]}
-	local i j val1 val2
-
-	# Bubble sort, numeric comparison
-	for ((i = 0; i < n; i++)); do
-		for ((j = 0; j < n - i - 1; j++)); do
-			read -r val1 _ <<<"${arr[j]}"
-			read -r val2 _ <<<"${arr[j + 1]}"
-			if (("${val1}" > "${val2}")); then
-				local tmp=${arr[j]}
-				arr[j]=${arr[j + 1]}
-				arr[j + 1]=$tmp
-			fi
-		done
-	done
-
-	printf '%s\n' "${arr[@]}"
-}
-
-spinner() {
-	if [[ $1 == 'reset' ]]; then
-		echo -ne ' \n'
-		return 0
-	fi
-
-	local spinChars=(
-		"-"
-		'\'
-		"|"
-		"/"
-	)
-	while true; do
-		for ((ind = 0; ind < "${#spinChars[@]}"; ind++)); do
-			echo -ne "${spinChars[${ind}]}" '\b\b'
-			sleep .25
-		done
-	done
-}
-
-get_pkgconfig_version() {
-	local pkg="$1"
-	pkg-config --modversion "${pkg}"
-}

main.sh

@@ -15,6 +15,11 @@ DOCKER_DIR="${IGN_DIR}/docker"
 PATCHES_DIR="${REPO_DIR}/patches"
 export REPO_DIR IGN_DIR TMP_DIR DL_DIR BUILD_DIR CCACHE_DIR DOCKER_DIR PATCHES_DIR
 
+# some functions need a way to signal early
+# returns instead of failures, so if a function
+# returns ${FUNC_EXIT_SUCCESS}, stop processing
+test -v FUNC_EXIT_SUCCESS || readonly FUNC_EXIT_SUCCESS=9
+
 # make paths if needed
 IGN_DIRS=(
     "${TMP_DIR}"
@@ -69,18 +74,18 @@ FB_FUNC_NAMES+=('print_cmds')
 FB_FUNC_DESCS['print_cmds']='print usable commands'
 print_cmds() {
     echo -e "~~~ Usable Commands ~~~\n"
-	for funcname in "${FB_FUNC_NAMES[@]}"; do
-		color="${CYAN}" word="${funcname}:" echo_wrapper "\n\t${FB_FUNC_DESCS[${funcname}]}"
+    for funcName in "${FB_FUNC_NAMES[@]}"; do
+        color="${CYAN}" word="${funcName}:" echo_wrapper "\n\t${FB_FUNC_DESCS[${funcName}]}"
         if [[ $FB_RUNNING_AS_SCRIPT -eq 0 ]]; then
-			(cd "$SCRIPT_DIR" && ln -sf entry.sh "${funcname}.sh")
+            (cd "$SCRIPT_DIR" && ln -sf entry.sh "${funcName}.sh")
         fi
     done
     echo -e "\n"
 }
 
 set_completions() {
-	for funcname in "${FB_FUNC_NAMES[@]}"; do
-		complete -W "${FB_FUNC_COMPLETION[${funcname}]}" "${funcname}"
+    for funcName in "${FB_FUNC_NAMES[@]}"; do
+        complete -W "${FB_FUNC_COMPLETION[${funcName}]}" "${funcName}"
     done
 }
 
@@ -88,7 +93,11 @@ src_scripts || return 1
 determine_pkg_mgr || return 1
 check_compile_opts_override || return 1
 
-if [[ $FB_RUNNING_AS_SCRIPT -eq 0 ]]; then
+# set local prefix since some functions need it
+# as opposed to user-defined PREFIX
+LOCAL_PREFIX="${IGN_DIR}/$(print_os)_sysroot"
+
+if [[ ${FB_RUNNING_AS_SCRIPT} -eq 0 ]]; then
     print_cmds || return 1
 fi
 set_completions || return 1

patches/libmp3lame/fix_lame_init_old_symbol.patch

@@ -0,0 +1,11 @@
+# https://sourceforge.net/p/lame/mailman/message/36081038/
+diff --git a/include/libmp3lame.sym b/include/libmp3lame.sym
+index ff7d318..fd120f5 100644
+--- a/include/libmp3lame.sym
++++ b/include/libmp3lame.sym
+@@ -1,5 +1,4 @@
+ lame_init
+-lame_init_old
+ lame_set_num_samples
+ lame_get_num_samples
+ lame_set_in_samplerate

patches/libvorbis/add-lm-to-pc.patch

@@ -0,0 +1,24 @@
+diff --git a/vorbis.pc.in b/vorbis.pc.in
+index f5ca77d..50cad9e 100644
+--- a/vorbis.pc.in
++++ b/vorbis.pc.in
+@@ -10,6 +10,6 @@ Description: vorbis is the primary Ogg Vorbis library
+ Version: @VERSION@
+ Requires.private: ogg
+ Conflicts:
+-Libs: -L${libdir} -lvorbis 
+-Libs.private: @VORBIS_LIBS@
++Libs: -L${libdir} -lvorbis
++Libs.private: @VORBIS_LIBS@ -lm
+ Cflags: -I${includedir}
+diff --git a/vorbisenc.pc.in b/vorbisenc.pc.in
+index a412b7a..4222daf 100644
+--- a/vorbisenc.pc.in
++++ b/vorbisenc.pc.in
+@@ -10,5 +10,5 @@ Description: vorbisenc is a library that provides a convenient API for setting u
+ Version: @VERSION@
+ Requires.private: vorbis
+ Conflicts:
+-Libs: -L${libdir} -lvorbisenc
++Libs: -L${libdir} -lvorbisenc -lm
+ Cflags: -I${includedir}

patches/libvpx/ignore-unknown-configure-options.patch

@@ -0,0 +1,13 @@
+diff --git a/build/make/configure.sh b/build/make/configure.sh
+index cc5bf6c..c229965 100644
+--- a/build/make/configure.sh
++++ b/build/make/configure.sh
+@@ -16,8 +16,6 @@
+ die_unknown(){
+   echo "Unknown option \"$1\"."
+   echo "See $0 --help for available options."
+-  clean_temp_files
+-  exit 1
+ }
+ 
+ die() {

shfmt-watcher.sh

@@ -6,10 +6,10 @@ inotifywait -m -r \
     -e close_write \
     -e moved_to \
     --format '%w%f' \
-	"$base/lib" \
-	"$base/scripts" \
-	"$base/main.sh" | while read -r file; do
+    "${base}/lib" \
+    "${base}/scripts" \
+    "${base}/main.sh" | while read -r file; do
     if [[ -f $file && $file =~ .sh ]]; then
-		shfmt --write --simplify "$file"
+        shfmt --indent 4 --write --simplify "${file}"
     fi
 done