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Update examples

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This commit is contained in:
Jerome Wu
2020-11-03 15:39:01 +08:00
parent a2b20c443c
commit 9f7e9eee76
13 changed files with 57 additions and 111 deletions
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9
examples/node/concatDemuxer.js
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@@ -1,12 +1,13 @@
const fs = require('fs');
const { createFFmpeg } = require('../../src');
const { createFFmpeg, fetchFile } = require('../../src');
const ffmpeg = createFFmpeg({ log: true });
(async () => {
await ffmpeg.load();
await ffmpeg.write('flame.avi', '../../tests/assets/flame.avi');
await ffmpeg.concatDemuxer(['flame.avi', 'flame.avi'], 'flame.mp4');
fs.writeFileSync('flame.mp4', ffmpeg.read('flame.mp4'));
ffmpeg.FS('writeFile', 'flame.avi', await fetchFile('../assets/flame.avi'));
ffmpeg.FS('writeFile', 'concat_list.txt', 'file flame.avi\nfile flame.avi');
await ffmpeg.run('-f', 'concat', '-safe', '0', '-i', 'concat_list.txt', 'flame.mp4');
fs.writeFileSync('flame.mp4', ffmpeg.FS('readFile', 'flame.mp4'));
process.exit(0);
})();

8
examples/node/hstack.js
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@@ -1,12 +1,12 @@
const fs = require('fs');
const { createFFmpeg } = require('../../src');
const { createFFmpeg, fetchFile } = require('../../src');
const ffmpeg = createFFmpeg({ log: true });
(async () => {
await ffmpeg.load();
await ffmpeg.write('flame.avi', '../../tests/assets/flame.avi');
await ffmpeg.run('-i flame.avi -i flame.avi -filter_complex hstack flame.mp4');
fs.writeFileSync('flame.mp4', ffmpeg.read('flame.mp4'));
ffmpeg.FS('writeFile', 'flame.avi', await fetchFile('../assets/flame.avi'));
await ffmpeg.run('-i', 'flame.avi', '-i', 'flame.avi', '-filter_complex', 'hstack', 'flame.mp4');
fs.writeFileSync('flame.mp4', ffmpeg.FS('readFile', 'flame.mp4'));
process.exit(0);
})();

15
examples/node/image2video.js
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@@ -1,21 +1,22 @@
const fs = require('fs');
const { createFFmpeg } = require('../../src');
const { createFFmpeg, fetchFile } = require('../../src');
const ffmpeg = createFFmpeg({ log: true });
(async () => {
await ffmpeg.load();
await ffmpeg.write('audio.ogg', '../../tests/assets/triangle/audio.ogg');
ffmpeg.FS('writeFile', 'audio.ogg', await fetchFile('../assets/triangle/audio.ogg'));
for (let i = 0; i < 60; i += 1) {
const num = `00${i}`.slice(-3);
await ffmpeg.write(`tmp.${num}.png`, `../../tests/assets/triangle/tmp.${num}.png`);
ffmpeg.FS('writeFile', `tmp.${num}.png`, await fetchFile(`../assets/triangle/tmp.${num}.png`));
}
await ffmpeg.run('-framerate 30 -pattern_type glob -i *.png -i audio.ogg -c:a copy -shortest -c:v libx264 -pix_fmt yuv420p out.mp4');
await ffmpeg.remove('audio.ogg');
console.log(ffmpeg.FS('readdir', '/'));
await ffmpeg.run('-framerate', '30', '-pattern_type', 'glob', '-i', '*.png', '-i', 'audio.ogg', '-c:a', 'copy', '-shortest', '-c:v', 'libx264', '-pix_fmt', 'yuv420p', 'out.mp4');
await ffmpeg.FS('unlink', 'audio.ogg');
for (let i = 0; i < 60; i += 1) {
const num = `00${i}`.slice(-3);
await ffmpeg.remove(`tmp.${num}.png`);
await ffmpeg.FS('unlink', `tmp.${num}.png`);
}
fs.writeFileSync('out.mp4', ffmpeg.read('out.mp4'));
fs.writeFileSync('out.mp4', ffmpeg.FS('readFile', 'out.mp4'));
process.exit(0);
})();

10
examples/node/multiple-output.js
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@@ -1,14 +1,14 @@
const fs = require('fs');
const { createFFmpeg } = require('../../src');
const { createFFmpeg, fetchFile } = require('../../src');
const ffmpeg = createFFmpeg({ log: true });
(async () => {
await ffmpeg.load();
await ffmpeg.write('flame.avi', '../../tests/assets/flame.avi');
await ffmpeg.run('-i flame.avi -map 0:v -r 25 out_%06d.bmp');
ffmpeg.ls('/').filter((p) => p.endsWith('.bmp')).forEach((p) => {
fs.writeFileSync(p, ffmpeg.read(p));
ffmpeg.FS('writeFile', 'flame.avi', await fetchFile('../assets/flame.avi'));
await ffmpeg.run('-i', 'flame.avi', '-map', '0:v', '-r', '25', 'out_%06d.bmp');
ffmpeg.FS('readdir', '/').filter((p) => p.endsWith('.bmp')).forEach((p) => {
fs.writeFileSync(p, ffmpeg.FS('readFile', p));
});
process.exit(0);

12
examples/node/run.js
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@@ -1,12 +0,0 @@
const fs = require('fs');
const { createFFmpeg } = require('../../src');
const ffmpeg = createFFmpeg({ log: true });
(async () => {
await ffmpeg.load();
await ffmpeg.write('flame.avi', '../../tests/assets/flame.avi');
await ffmpeg.run('-i flame.avi flame.mp4');
fs.writeFileSync('flame.mp4', ffmpeg.read('flame.mp4'));
process.exit(0);
})();

8
examples/node/transcode.js
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@@ -1,5 +1,5 @@
const fs = require('fs');
const { createFFmpeg } = require('../../src');
const { createFFmpeg, fetchFile } = require('../../src');
const ffmpeg = createFFmpeg({
log: true,
@@ -7,9 +7,9 @@ const ffmpeg = createFFmpeg({
(async () => {
await ffmpeg.load();
await ffmpeg.write('flame.avi', '../../tests/assets/flame.avi');
await ffmpeg.transcode('flame.avi', 'flame.mp4', '-threads 2');
const data = ffmpeg.read('flame.mp4');
ffmpeg.FS('writeFile', 'flame.avi', await fetchFile('../assets/flame.avi'));
await ffmpeg.run('-i', 'flame.avi', 'flame.mp4');
const data = ffmpeg.FS('readFile', 'flame.mp4');
fs.writeFileSync('flame.mp4', Buffer.from(data));
process.exit(0);
})();

8
examples/node/trim.js
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@@ -1,12 +1,12 @@
const fs = require('fs');
const { createFFmpeg } = require('../../src');
const { createFFmpeg, fetchFile } = require('../../src');
const ffmpeg = createFFmpeg({ log: true });
(async () => {
await ffmpeg.load();
await ffmpeg.write('flame.avi', '../../tests/assets/flame.avi');
await ffmpeg.trim('flame.avi', 'flame_trim.avi', 0, 10);
fs.writeFileSync('flame_trim.avi', ffmpeg.read('flame_trim.avi'));
ffmpeg.FS('writeFile', 'flame.avi', await fetchFile('../assets/flame.avi'));
await ffmpeg.run('-i', 'flame.avi', '-ss', '0', '-to', '1', 'flame_trim.avi');
fs.writeFileSync('flame_trim.avi', ffmpeg.FS('readFile', 'flame_trim.avi'));
process.exit(0);
})();