add ffmpeg

ffmpeg/README.md

@@ -0,0 +1,27 @@
+---
+title: ffmpeg
+homepage: https://ffmpeg.org/
+tagline: |
+  FFmpeg: A complete, cross-platform solution to record, convert and stream audio and video.
+---
+
+## Updating `ffmpeg`
+
+```bash
+webi ffmpeg@stable
+```
+
+Disclaimer: ffmpeg does not provide official binaries, so
+<https://github.com/eugeneware/ffmpeg-static> is used.
+
+## Cheat Sheet
+
+> FFmpeg is useful for converting between various audio, video, and image
+> formats.
+
+Many simple conversions can be auto-detected by file extension and the options
+that produce the most similar quality by default.
+
+```bash
+ffmpeg -i input.m4a output.mp3
+```

ffmpeg/install.ps1

@@ -1 +1,51 @@
+#!/usr/bin/env pwsh
 
+##################
+# Install ffmpeg #
+##################
+
+# Every package should define these variables
+$pkg_cmd_name = "ffmpeg"
+
+$pkg_dst_cmd = "$Env:USERPROFILE\.local\bin\ffmpeg.exe"
+$pkg_dst = "$pkg_dst_cmd"
+
+$pkg_src_cmd = "$Env:USERPROFILE\.local\opt\ffmpeg-v$Env:WEBI_VERSION\bin\ffmpeg.exe"
+$pkg_src_bin = "$Env:USERPROFILE\.local\opt\ffmpeg-v$Env:WEBI_VERSION\bin"
+$pkg_src_dir = "$Env:USERPROFILE\.local\opt\ffmpeg-v$Env:WEBI_VERSION"
+$pkg_src = "$pkg_src_cmd"
+
+$pkg_download = "$Env:USERPROFILE\Downloads\$Env:WEBI_PKG_FILE"
+
+# Fetch archive
+IF (!(Test-Path -Path "$Env:USERPROFILE\Downloads\$Env:WEBI_PKG_FILE"))
+{
+    # TODO: arch detection
+    echo "Downloading ffmpeg from $Env:WEBI_PKG_URL to $pkg_download"
+    & curl.exe -A "$Env:WEBI_UA" -fsSL "$Env:WEBI_PKG_URL" -o "$pkg_download.part"
+    Move-Item -Path "$pkg_download.part" -Destination "$pkg_download" -Force
+}
+
+IF (!(Test-Path -Path "$pkg_src_cmd"))
+{
+    echo "Installing ffmpeg"
+
+    # TODO: create package-specific temp directory
+    # Enter tmp
+    pushd .local\tmp
+
+        # Remove any leftover tmp cruft
+        Remove-Item -Path ".\win32-*" -Recurse -ErrorAction Ignore
+
+        # Settle unpacked archive into place
+        echo "Install Location: $pkg_src_cmd"
+        New-Item "$pkg_src_bin" -ItemType Directory -Force
+        Move-Item -Path "$pkg_download" -Destination "$pkg_src_cmd" -Force
+
+    # Exit tmp
+    popd
+}
+
+echo "Copying into '$pkg_dst_cmd' from '$pkg_src_cmd'"
+Remove-Item -Path "$pkg_dst_cmd" -Recurse -ErrorAction Ignore
+Copy-Item -Path "$pkg_src" -Destination "$pkg_dst" -Recurse

ffmpeg/install.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+{
+    set -e
+    set -u
+
+    ##################
+    # Install ffmpeg #
+    ##################
+
+    # Every package should define these 6 variables
+    pkg_cmd_name="ffmpeg"
+
+    pkg_dst_cmd="$HOME/.local/bin/ffmpeg"
+    pkg_dst="$pkg_dst_cmd"
+
+    pkg_src_cmd="$HOME/.local/opt/ffmpeg-v$WEBI_VERSION/bin/ffmpeg"
+    pkg_src_dir="$HOME/.local/opt/ffmpeg-v$WEBI_VERSION"
+    pkg_src="$pkg_src_cmd"
+
+    # pkg_install must be defined by every package
+    pkg_install() {
+        # ~/.local/opt/ffmpeg-v4.3.1/bin
+        mkdir -p "$(dirname $pkg_src_cmd)"
+
+        # mv ./linux-x86 ~/.local/opt/ffmpeg-v4.3.1/bin/ffmpeg
+        mv ./*-* "$pkg_src_cmd"
+    }
+
+    # pkg_get_current_version is recommended, but (soon) not required
+    pkg_get_current_version() {
+        # 'ffmpeg -version' has output in this format:
+        #       ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
+        #       built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
+        #       ...
+        # This trims it down to just the version number:
+        #       4.3.1
+        echo $(ffmpeg -version 2>/dev/null | head -n 1 | cut -d ' ' -f 3)
+    }
+
+}

ffmpeg/releases.js

@@ -0,0 +1,40 @@
+'use strict';
+
+var path = require('path');
+
+var github = require('../_common/github.js');
+var owner = 'eugeneware';
+var repo = 'ffmpeg-static';
+
+module.exports = function (request) {
+  return github(request, owner, repo).then(function (all) {
+    all.releases = all.releases
+      .filter(function (rel) {
+        // remove README and LICENSE
+        return !['.README', '.LICENSE'].includes(path.extname(rel.name));
+      })
+      .map(function (rel) {
+        rel.version = rel.version.replace(/^b/, '');
+
+        if (/win32/.test(rel.name)) {
+          rel.os = 'windows';
+          rel.ext = 'exe';
+        }
+        if (/ia32/.test(rel.name)) {
+          rel.arch = '386';
+        } else if (/x64/.test(rel.name)) {
+          rel.arch = 'amd64';
+        }
+
+        return rel;
+      });
+    return all;
+  });
+};
+
+if (module === require.main) {
+  module.exports(require('@root/request')).then(function (all) {
+    all = require('../_webi/normalize.js')(all);
+    console.info(JSON.stringify(all));
+  });
+}