allow settings ffmpegpath

index.js

@@ -33,6 +33,9 @@ module.exports = async (config = {}) => {
     fps: requestedFps,
     defaults: defaultsIn = {},
     audioFilePath: audioFilePathIn,
+
+    ffmpegPath = 'ffmpeg',
+    ffprobePath = 'ffprobe',
   } = config;
 
   const isGif = outPath.toLowerCase().endsWith('.gif');
@@ -130,7 +133,7 @@ module.exports = async (config = {}) => {
 
       if (type === 'video') {
         const { cutFrom: cutFromIn, cutTo: cutToIn, path } = layer;
-        const fileInfo = await readFileInfo(path);
+        const fileInfo = await readFileInfo(ffprobePath, path);
         const { duration: fileDuration, width: widthIn, height: heightIn, framerateStr, rotation } = fileInfo;
         let cutFrom;
         let cutTo;
@@ -299,7 +302,7 @@ module.exports = async (config = {}) => {
       ...outputArgs,
     ];
     if (verbose) console.log('ffmpeg', args.join(' '));
-    return execa('ffmpeg', args, { encoding: null, buffer: false, stdin: 'pipe', stdout: process.stdout, stderr: process.stderr });
+    return execa(ffmpegPath, args, { encoding: null, buffer: false, stdin: 'pipe', stdout: process.stdout, stderr: process.stderr });
   }
 
   let outProcess;
@@ -326,7 +329,7 @@ module.exports = async (config = {}) => {
     const getTransitionFromClip = () => clips[transitionFromClipId];
     const getTransitionToClip = () => clips[getTransitionToClipId()];
 
-    const getSource = (clip, clipIndex) => createFrameSource({ clip, clipIndex, width, height, channels, verbose, enableFfmpegLog, framerateStr });
+    const getSource = (clip, clipIndex) => createFrameSource({ clip, clipIndex, width, height, channels, verbose, ffmpegPath, enableFfmpegLog, framerateStr });
 
     const getTransitionToSource = async () => (getTransitionToClip() && getSource(getTransitionToClip(), getTransitionToClipId()));
     frameSource1 = await getSource(getTransitionFromClip(), transitionFromClipId);

sources/frameSource.js

@@ -6,7 +6,7 @@ const createVideoFrameSource = require('./videoFrameSource');
 const { createGlFrameSource } = require('./glFrameSource');
 
 
-async function createFrameSource({ clip, clipIndex, width, height, channels, verbose, enableFfmpegLog, framerateStr }) {
+async function createFrameSource({ clip, clipIndex, width, height, channels, verbose, ffmpegPath, enableFfmpegLog, framerateStr }) {
   const { layers, duration } = clip;
 
   const frameSources = await pMap(layers, async (layer, layerIndex) => {
@@ -29,7 +29,7 @@ async function createFrameSource({ clip, clipIndex, width, height, channels, ver
 
     const createFrameSourceFunc = frameSourceFuncs[type];
 
-    return createFrameSourceFunc({ width, height, duration, channels, verbose, enableFfmpegLog, framerateStr, params });
+    return createFrameSourceFunc({ ffmpegPath, width, height, duration, channels, verbose, enableFfmpegLog, framerateStr, params });
   }, { concurrency: 1 });
 
   async function readNextFrame(...args) {

sources/videoFrameSource.js

@@ -42,7 +42,7 @@ module.exports = async ({ width, height, channels, framerateStr, verbose, enable
   ];
   if (verbose) console.log(args.join(' '));
 
-  const ps = execa('ffmpeg', args, { encoding: null, buffer: false, stdin: 'ignore', stdout: 'pipe', stderr: process.stderr });
+  const ps = execa(ffmpegPath, args, { encoding: null, buffer: false, stdin: 'ignore', stdout: 'pipe', stderr: process.stderr });
 
   const stream = ps.stdout;
 

util.js

@@ -10,8 +10,8 @@ function parseFps(fps) {
   return undefined;
 }
 
-async function readFileInfo(p) {
-  const { stdout } = await execa('ffprobe', [
+async function readFileInfo(ffprobePath, p) {
+  const { stdout } = await execa(ffprobePath, [
     '-select_streams', 'v:0', '-show_entries', 'stream', '-of', 'json', p,
   ]);
   const json = JSON.parse(stdout);