@vbarbarosh/ffmpeg-helpers - npm Package Compare versions

Comparing version 0.2.0 to 0.2.1

package.json

 {
     "name": "@vbarbarosh/ffmpeg-helpers",
-    "version": "0.2.0",
+    "version": "0.2.1",
     "author": "Vladimir Barbarosh <[e-mail]>",
@@ -5,0 +5,0 @@ "description": "A set of helpers for building arguments for ffmpeg binary.",

README.md

 A set of helpers for building arguments for ffmpeg binary.
 
+* `ffprobe({input})`
+* `ffmpeg_trim_crop_resize({input, output, trim, crop, resize})`
+* `shell_ffmpeg_progress(args, {progress_fn})`
+
+### demos/ffprobe.js
+
 ```javascript
-// demos/ffprobe.js
 const input = fs_path_resolve(__dirname, '../var/BCG 1 Hour Countdown (LED Frame Counter 180,000 Frames - 50 FPS) Remix BBC Arabic Countdown [ZSOdXPoMuu8].webm');
@@ -10,7 +15,113 @@ const probe = await shell_json(ffprobe({input}));
 
+```json
+{
+    "streams": [
+        {
+            "index": 0,
+            "codec_name": "vp9",
+            "codec_long_name": "Google VP9",
+            "profile": "Profile 0",
+            "codec_type": "video",
+            "codec_tag_string": "[0][0][0][0]",
+            "codec_tag": "0x0000",
+            "width": 1920,
+            "height": 1080,
+            "coded_width": 1920,
+            "coded_height": 1080,
+            "closed_captions": 0,
+            "has_b_frames": 0,
+            "sample_aspect_ratio": "1:1",
+            "display_aspect_ratio": "16:9",
+            "pix_fmt": "yuv420p",
+            "level": -99,
+            "color_range": "tv",
+            "color_space": "bt709",
+            "color_transfer": "bt709",
+            "color_primaries": "bt709",
+            "refs": 1,
+            "r_frame_rate": "50/1",
+            "avg_frame_rate": "50/1",
+            "time_base": "1/1000",
+            "start_pts": 0,
+            "start_time": "0.000000",
+            "disposition": {
+                "default": 1,
+                "dub": 0,
+                "original": 0,
+                "comment": 0,
+                "lyrics": 0,
+                "karaoke": 0,
+                "forced": 0,
+                "hearing_impaired": 0,
+                "visual_impaired": 0,
+                "clean_effects": 0,
+                "attached_pic": 0,
+                "timed_thumbnails": 0
+            },
+            "tags": {
+                "language": "eng",
+                "DURATION": "01:00:20.000000000"
+            }
+        },
+        {
+            "index": 1,
+            "codec_name": "opus",
+            "codec_long_name": "Opus (Opus Interactive Audio Codec)",
+            "codec_type": "audio",
+            "codec_tag_string": "[0][0][0][0]",
+            "codec_tag": "0x0000",
+            "sample_fmt": "fltp",
+            "sample_rate": "48000",
+            "channels": 2,
+            "channel_layout": "stereo",
+            "bits_per_sample": 0,
+            "r_frame_rate": "0/0",
+            "avg_frame_rate": "0/0",
+            "time_base": "1/1000",
+            "start_pts": -7,
+            "start_time": "-0.007000",
+            "disposition": {
+                "default": 1,
+                "dub": 0,
+                "original": 0,
+                "comment": 0,
+                "lyrics": 0,
+                "karaoke": 0,
+                "forced": 0,
+                "hearing_impaired": 0,
+                "visual_impaired": 0,
+                "clean_effects": 0,
+                "attached_pic": 0,
+                "timed_thumbnails": 0
+            },
+            "tags": {
+                "language": "eng",
+                "DURATION": "01:00:20.021000000"
+            }
+        }
+    ],
+    "format": {
+        "filename": "/ffmpeg-helpers/var/BCG 1 Hour Countdown (LED Frame Counter 180,000 Frames - 50 FPS) Remix BBC Arabic Countdown [ZSOdXPoMuu8].webm",
+        "nb_streams": 2,
+        "nb_programs": 0,
+        "format_name": "matroska,webm",
+        "format_long_name": "Matroska / WebM",
+        "start_time": "-0.007000",
+        "duration": "3620.021000",
+        "size": "270373143",
+        "bit_rate": "597506",
+        "probe_score": 100,
+        "tags": {
+            "ENCODER": "Lavf58.76.100"
+        }
+    }
+}
+```
+
+### demos/ffmpeg_trim.js
+
 ```javascript
-// demos/ffmpeg_trim.js
 const input = fs_path_resolve(__dirname, '../var/BCG 1 Hour Countdown (LED Frame Counter 180,000 Frames - 50 FPS) Remix BBC Arabic Countdown [ZSOdXPoMuu8].webm');
 const probe = await shell_json(ffprobe({input}));
-await shell(ffmpeg_trim_crop_resize({probe, input, output: 'a.mkv', trim: [
+await shell(ffmpeg_trim_crop_resize({probe, input, output: 'a.mp4', trim: [
     {start: 5, end: 10},
@@ -23,4 +134,40 @@ {start: 65, end: 70},
 
+### demos/shell_ffmpeg_progress.js
+
+```javascript
+const input = fs_path_resolve(__dirname, '../var/BCG 1 Hour Countdown (LED Frame Counter 180,000 Frames - 50 FPS) Remix BBC Arabic Countdown [ZSOdXPoMuu8].webm');
+const probe = await shell_json(ffprobe({input}));
+const trim = [{start: 5, end: 10}, {start: 65, end: 70}, {start: 125, end: 130}];
+const expected_duration_us = trim.length ? 1000000*trim.reduce((a,v) => a + v.end - v.start, 0) : 1000000*probe.format.duration;
+await shell_ffmpeg_progress(ffmpeg_trim_crop_resize({probe, input, output: 'a.mp4', trim}).concat('-y'), {
+    progress_fn: function (v) {
+        console.log(`${v.out_time_us} of ${expected_duration_us} ${(v.out_time_us/expected_duration_us*100).toFixed(2)}% ${v.fps}fps`);
+    },
+});
+console.log('done');
+```
+
+```text
+213333 of 15000000 1.42% 0.00fps
+2048000 of 15000000 13.65% 0.00fps
+3562667 of 15000000 23.75% 146.90fps
+4928000 of 15000000 32.85% 151.93fps
+4928000 of 15000000 32.85% 116.52fps
+4928000 of 15000000 32.85% 94.49fps
+4928000 of 15000000 32.85% 79.45fps
+6528000 of 15000000 43.52% 86.59fps
+8064000 of 15000000 53.76% 94.95fps
+9642667 of 15000000 64.28% 101.43fps
+9920000 of 15000000 66.13% 97.02fps
+9920000 of 15000000 66.13% 88.44fps
+9920000 of 15000000 66.13% 81.24fps
[phone] of 15000000 72.68% 80.28fps
[phone] of 15000000 83.20% 85.78fps
[phone] of 15000000 94.01% 90.56fps
[phone] of 15000000 99.98% 91.67fps
+done
+```
+
 ## References
 
 https://www.youtube.com/watch?v=ZSOdXPoMuu8

src/shell_ffmpeg_progress.js

@@ -5,5 +5,5 @@ const child_process = require('child_process');
 
-async function shell_ffmpeg_progress(args, progress_fn)
+async function shell_ffmpeg_progress(args, {progress_fn, ...options})
 {
-    const proc = child_process.spawn(args[0], ['-v', 'error', '-progress', '-', ...args.slice(1)], {stdio: ['pipe', 'pipe', 'pipe']});
+    const proc = child_process.spawn(args[0], ['-v', 'error', '-progress', '-', ...args.slice(1)], {...options, stdio: ['pipe', 'pipe', 'pipe']});
 
@@ -10,0 +10,0 @@ let end_stdout = function () {};

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32979

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