Working versino after a small refactor
This commit is contained in:
Kuba Orlik
parent
eaec1a7f86
commit
3deb39fabb
1
.gitignore
vendored
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1
.gitignore
vendored
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/.log/
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13
audio_props.mjs
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audio_props.mjs
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const audio_props = {
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"stream.handler_name.markup": "SoundHandler",
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"stream.type": "audio",
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"codec.sample_fmt": (metadata) => {
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const type = metadata.data.Format_Settings_Sign == "Signed" ? "s" : "u";
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const bit_depth = metadata.data.BitDepth;
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return `${type}${bit_depth}`;
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},
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"codec.channels": (metadata) => metadata.data.Channels,
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"codec.sample_rate": (metadata) => metadata.data.SamplingRate,
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};
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export default audio_props;
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104
kdenlive.mjs
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104
kdenlive.mjs
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#!/usr/bin/zx --quiet
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import { formatDuration } from "./util.mjs";
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import Producer from "./producer.mjs";
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export default async function kdenliveProject(
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source_files,
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project_settings, // const project_settings = { fps: 30 };
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clips
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) {
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const producers = await Promise.all(source_files.map(Producer.fromFile));
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return `<?xml version='1.0' encoding='utf-8'?>
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<mlt LC_NUMERIC="C" producer="main_bin" version="7.0.0" root="/home/kuba/Downloads">
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<profile frame_rate_num="${
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project_settings.fps
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}" sample_aspect_num="1" display_aspect_den="9" colorspace="601" progressive="1" description="1920x1080 29.90fps" display_aspect_num="16" frame_rate_den="1" width="1920" height="1080" sample_aspect_den="1"/>
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${(
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await Promise.all(
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producers.map((producer) => producer.toXML(project_settings))
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)
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).join("\n")}
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<playlist id="main_bin">
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<property name="kdenlive:docproperties.activeTrack">2</property>
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<property name="kdenlive:docproperties.audioChannels">2</property>
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<property name="kdenlive:docproperties.audioTarget">1</property>
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<property name="kdenlive:docproperties.disablepreview">0</property>
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<property name="kdenlive:docproperties.documentid">1633881496938</property>
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<property name="kdenlive:docproperties.groups">[
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]
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</property>
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<property name="kdenlive:docproperties.kdenliveversion">21.08.1</property>
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<property name="kdenlive:docproperties.version">1.02</property>
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<property name="kdenlive:expandedFolders"/>
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<property name="kdenlive:documentnotes"/>
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<property name="xml_retain">1</property>
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${producers
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.map(
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(producer, index) =>
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`<entry producer="producer${index}" in="00:00:00.000" out="${producer.getDuration()}"/>`
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)
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.join("\n")}
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</playlist>
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<producer id="black_track" in="00:00:00.000" out="00:08:20.000">
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<property name="length">2147483647</property>
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<property name="eof">continue</property>
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<property name="resource">black</property>
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<property name="aspect_ratio">1</property>
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<property name="mlt_service">color</property>
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<property name="mlt_image_format">rgb24a</property>
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<property name="set.test_audio">0</property>
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</producer>
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<playlist id="playlist0">
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<property name="kdenlive:audio_track">1</property>
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</playlist>
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<playlist id="playlist1">
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<property name="kdenlive:audio_track">1</property>
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</playlist>
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<tractor id="tractor0" in="00:00:00.000">
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<property name="kdenlive:audio_track">1</property>
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<property name="kdenlive:timeline_active">1</property>
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<track hide="video" producer="playlist0"/>
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<track hide="video" producer="playlist1"/>
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</tractor>
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<playlist id="playlist2">
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<property name="kdenlive:audio_track">1</property>
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</playlist>
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<playlist id="playlist3">
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<property name="kdenlive:audio_track">1</property>
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</playlist>
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<tractor id="tractor1" in="00:00:00.000">
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<property name="kdenlive:audio_track">1</property>
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<track hide="video" producer="playlist2"/>
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<track hide="video" producer="playlist3"/>
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</tractor>
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<playlist id="playlist4"/>
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<playlist id="playlist5"/>
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<tractor id="tractor2" in="00:00:00.000">
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<track hide="audio" producer="playlist4"/>
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<track hide="audio" producer="playlist5"/>
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</tractor>
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<playlist id="playlist6"/>
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<playlist id="playlist7"/>
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<tractor id="tractor3" in="00:00:00.000">
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<track hide="audio" producer="playlist6"/>
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<track hide="audio" producer="playlist7"/>
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</tractor>
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<tractor id="tractor4" in="00:00:00.000" out="00:08:20.000">
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<track producer="black_track"/>
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<track producer="tractor0"/>
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<track producer="tractor1"/>
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<track producer="tractor2"/>
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<track producer="tractor3"/>
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</tractor>
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</mlt>
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`;
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}
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const project_content = await kdenliveProject(
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["/home/kuba/Videos/5min.mp4", "/home/kuba/Videos/5min.wav"],
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{
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fps: 30,
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}
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);
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await $`echo ${project_content} > project-generated.kdenlive`;
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112
producer.mjs
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112
producer.mjs
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import {
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getStream,
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indexOf,
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renderAllProps,
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getStreamIndex,
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formatDuration,
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} from "./util.mjs";
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import { makeIDGen } from "./util.mjs";
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import video_props from "./video_props.mjs";
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import audio_props from "./audio_props.mjs";
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const makeId = makeIDGen(1);
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const producerIndexGen = makeIDGen(0);
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export default class Producer {
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constructor(metadata) {
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this.metadata = metadata;
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this.index = producerIndexGen.next().value;
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}
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static prop_types = {
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length: (metadata, project_settings) => {
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const duration = getStream(metadata.track, "General").Duration;
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return `${duration * project_settings.fps}`;
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},
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eof: "pause",
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resource: (metadata) => metadata["@ref"],
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audio_index: (metadata) => getStreamIndex(metadata.track, "Audio"),
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video_index: (metadata) => getStreamIndex(metadata.track, "Video"),
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mute_on_pause: "0",
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mlt_service: "avformat-novalidate",
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seekable: "1",
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aspect_ratio: "1",
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"kdenlive:clipname": "",
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"kdenlive:folderid": "-1",
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"kdenlive:audio_max0": "208",
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"kdenlive:id": () => makeId.next().value,
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"kdenlive:file_size": async (metadata) =>
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(
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await $`du --bytes ${metadata["@ref"]} | awk '{print $1}'`
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).stdout.replace("\n", ""),
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"kdenlive:file_hash": async (metadata) =>
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(
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await $`head -c 1000000 ${metadata["@ref"]} && tail -c 1000000 ${metadata["@ref"]}`.pipe(
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$`md5sum | awk '{print $1}'`
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)
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).stdout.replace("\n", ""),
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"meta.media.nb_streams": (metadata) => metadata.track.length - 1,
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$$$video: async (metadata, project_settings) => {
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const video_index = indexOf(metadata.track, (e) => e["@type"] == "Video");
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if (video_index == -1) {
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return null;
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}
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return {
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$replace: await renderAllProps(
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video_props,
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{
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index: video_index,
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path: metadata["@ref"],
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data: metadata.track[video_index],
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},
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project_settings,
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`meta.media.${getStreamIndex(metadata.track, "Video")}.`
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),
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};
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},
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$$$audio: async (metadata, project_settings) => {
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const audio_index = indexOf(metadata.track, (e) => e["@type"] == "Audio");
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if (audio_index == -1) {
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return null;
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}
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return {
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$replace: await renderAllProps(
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audio_props,
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{
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index: audio_index,
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path: metadata["@ref"],
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data: metadata.track[audio_index],
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},
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project_settings,
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`meta.media.${getStreamIndex(metadata.track, "Audio")}.`
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),
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};
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},
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};
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static async fromFile(file_path) {
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const metadata = JSON.parse(
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(await $`mediainfo --Output=JSON ${file_path}`).stdout
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).media;
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return new Producer(metadata);
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}
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getDuration() {
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return formatDuration(
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parseFloat(getStream(this.metadata.track, "General").Duration)
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);
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}
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async toXML(project_settings) {
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return `<producer id="producer${
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this.index
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}" in="00:00:00.000" out="${this.getDuration()}">
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${await renderAllProps(
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Producer.prop_types,
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this.metadata,
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project_settings
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)}
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</producer>
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`;
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}
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}
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84
util.mjs
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84
util.mjs
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export function indexOf(array, predicate) {
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for (let i in array) {
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if (predicate(array[i])) {
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return i;
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}
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}
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return -1;
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}
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export async function renderProperty(
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name,
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fn,
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metadata,
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project_settings,
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prefix = ""
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) {
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let value;
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if (typeof fn === "string") {
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value = fn;
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} else {
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value = await fn(metadata, project_settings);
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}
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console.log(name, value);
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if (value === null) {
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return "";
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} else if (value && value.$replace) {
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return value.$replace;
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} else {
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return `<property name="${prefix}${name}">${value}</property>`;
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}
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}
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export async function renderAllProps(
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props,
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metadata,
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project_settings,
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prefix = ""
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) {
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return (
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await Promise.all(
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Object.entries(props).map(([name, fn]) =>
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renderProperty(name, fn, metadata, project_settings, prefix)
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)
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)
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).join("\n");
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}
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export function getStream(tracks, type) {
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return tracks.find((track) => track["@type"] == type);
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}
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const HOUR = 60 * 60;
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const MINUTE = 60;
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export function formatDuration(float_s) {
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const hours = Math.floor(float_s / HOUR);
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float_s = float_s - hours * HOUR;
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const minutes = Math.floor(float_s / MINUTE);
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const seconds = float_s - minutes * MINUTE;
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return `${twoDigits(hours)}:${twoDigits(minutes)}:${twoDigits(seconds, 5)}`;
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}
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export function twoDigits(number, decimal = 0) {
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let [int, dec] = number.toFixed(decimal).split(".");
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dec = dec || "";
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if (dec == "") {
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return int.padStart(2, "0");
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} else {
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return int.padStart(2, "0") + "." + dec;
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}
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}
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export function getStreamIndex(trackarray, type) {
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const array_index = indexOf(trackarray, (e) => e["@type"] == type);
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return array_index == -1 ? -1 : trackarray[array_index].StreamOrder || 0;
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}
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export function* makeIDGen(first = 1) {
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let i = first;
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while (true) {
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yield i;
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i++;
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}
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}
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12
video_props.mjs
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12
video_props.mjs
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const video_props = {
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"stream.type": "video",
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"stream.frame_rate": (metadata) => metadata.data.FrameRate,
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"stream.sample_aspect_ratio": "1",
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"codec.width": (metadata) => metadata.data.Width,
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"codec.height": (metadata) => metadata.data.Height,
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"codec.rotate": "0",
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"codec.frame_rate": (metadata) => metadata.data.FrameRate,
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"stream.handler_name.markup": "VideoHandle",
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};
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export default video_props
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