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Tune ffmpeg command to start playback and transcode faster

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Add option for custom flags
This commit is contained in:
knotteye
2020-08-08 23:08:09 -05:00
parent 9eec1241e2
commit c9accda4eb
3 changed files with 24 additions and 4 deletions
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4
src/config.ts
View File

@ -46,7 +46,9 @@ const config: Object = {
transcode: Object.assign({
adapative: false,
variants: 3,
format: 'dash'
format: 'dash',
inputflags: null,
outputflags: null
}, localconfig['transcode']),
chat: {
irc: Object.assign({

15
src/server.ts
View File

@ -41,7 +41,11 @@ function init () {
while(true){
if(session.audioCodec !== 0 && session.videoCodec !== 0){
transCommand(results[0].username, key).then((r) => {
execFile(config['media']['ffmpeg'], r, {maxBuffer: Infinity}, (err, stdout, stderr) => {});
execFile(config['media']['ffmpeg'], r, {maxBuffer: Infinity}, (err, stdout, stderr) => {
console.log(err);
console.log(stdout);
console.log(stderr);
});
});
break;
}
@ -112,7 +116,9 @@ function init () {
}
async function transCommand(user: string, key: string): Promise<string[]>{
let args: string[] = [/*'-loglevel', 'fatal',*/ '-y', '-i', 'rtmp://127.0.0.1:'+config['rtmp']['port']+'/'+config['media']['privateEndpoint']+'/'+key];
let args: string[] = ['-loglevel', 'fatal', '-y'];
if(config['transcode']['inputflags'] !== null && config['transcode']['inputflags'] !== "") args = args.concat(config['transcode']['inputflags'].split(" "));
args = args.concat(['-i', 'rtmp://127.0.0.1:'+config['rtmp']['port']+'/'+config['media']['privateEndpoint']+'/'+key, '-movflags', '+faststart']);
if(config['transcode']['adaptive']===true && config['transcode']['variants'] > 1) {
for(let i=0;i<config['transcode']['variants'];i++){
args = args.concat(['-map', '0:2']);
@ -133,8 +139,11 @@ async function transCommand(user: string, key: string): Promise<string[]>{
else {
args = args.concat(['-c:a', 'aac', '-c:v', 'libx264']);
}
args = args.concat(['-preset', 'veryfast', '-tune', 'zerolatency']);
//if(config['transcode']['format'] === 'dash')
args = args.concat(['-remove_at_exit', '1', '-seg_duration', '1', '-window_size', '30', '-f', 'dash', config['http']['directory']+'/'+config['media']['publicEndpoint']+'/'+user+'/index.mpd']);
args = args.concat(['-remove_at_exit', '1', '-seg_duration', '1', '-window_size', '30']);
if(config['transcode']['outputflags'] !== null && config['transcode']['outputflags'] !== "") args = args.concat(config['transcode']['outputflags'].split(" "));
args = args.concat(['-f', 'dash', config['http']['directory']+'/'+config['media']['publicEndpoint']+'/'+user+'/index.mpd']);
//else if(config['transcode']['format'] === 'hls')
//args = args.concat(['-remove_at_exit', '1', '-hls_time', '1', '-hls_list_size', '30', '-f', 'hls', config['http']['directory']+'/'+config['media']['publicEndpoint']+'/'+user+'/index.m3u8']);
return args;