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The pirate bay depuis la Belgique
1er avril 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Image
Autres articles (50)
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Mise à jour de la version 0.1 vers 0.2
24 juin 2013, parExplications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...) -
Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)
Sur d’autres sites (9194)
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How add Data Stream into MXF(using mpeg2video) file with FFmpeg and C/C++
26 mars 2019, par Helmuth SchmitzI’m a little bit stuck here trying create a MXF file
with data stream on it. I have several MXF video files that contain
this standard**1 Video Stream:
Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 50000 kb/s, 29.9
16 audio streams
Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
1 Data Stream:
Data: none**This data stream, contain personal data inside video file. I can
open this stream and data is really there. Is all ok. But, when i try
to create a file exactly like this, everytime i call "avformat_write_header"
it returns an error.If i do comment the creation of this data streams the video file is succeffully
created.If i change to "mpegts" with this data stream, the video file is also succeffully
created.But, i can’t use mpets and i need this data stream.
I know that is possible MXF with data stream cause i have this originals files
that have this combination.So, i know that i missing something in my code.
This is the way i create this Data Stream :
void CFFmpegVideoWriter::addDataStream(EOutputStream *ost, AVFormatContext *oc, AVCodec **codec, enum AVCodecID codec_id)
{
AVCodecParameters *par;
ost->stream = avformat_new_stream(oc, NULL);
if (ost->stream == NULL)
{
fprintf(stderr, "OOooohhh man: avformat_new_stream() failed.\n");
return;
}
par = ost->stream->codecpar;
ost->stream->index = 17;
par->codec_id = AV_CODEC_ID_NONE;
par->codec_type = AVMEDIA_TYPE_DATA;
ost->stream->codec->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
}the file openning is this :
CFFMpegVideoWriter::CFFMpegVideoWriter(QString outputfilename) : QThread()
{
av_register_all();
avcodec_register_all();
isOpen = false;
shouldClose = false;
frameIndex = 0;
#ifdef __linux__
QByteArray bFilename = outputfilename.toUtf8();
#else
QByteArray bFilename = outputfilename.toLatin1();
#endif
const char* filename = bFilename.data();
codecContext = NULL;
//encontra o formato desejado...
outputFormat = av_guess_format("mp2v", filename, nullptr);
if (!outputFormat)
{
qDebug("Could not find suitable output format\n");
return;
}
//encontra o codec...
codec = avcodec_find_encoder(outputFormat->video_codec);
if (!codec)
{
qDebug( "Codec not found\n");
return;
}
//aloca o contexto do codec...
codecContext = avcodec_alloc_context3(codec);
codecContext->field_order = AV_FIELD_TT;
codecContext->profile = FF_PROFILE_MPEG2_422;
//aloca o contexto do formato...
formatContext = avformat_alloc_context();
formatContext->oformat = outputFormat;
//aloca o contexto da midia de saida...
avformat_alloc_output_context2(&formatContext, NULL, NULL, filename);
if (!formatContext)
{
qDebug("Erro");
return;
}
videoStream.tmp_frame = NULL;
videoStream.swr_ctx = NULL;
//adiciona a stream de video...
if (outputFormat->video_codec != AV_CODEC_ID_NONE)
{
addVideoStream(&videoStream, formatContext, &video_codec, outputFormat->video_codec);
}
//adiciona as 16 streams de audio...
if (outputFormat->audio_codec != AV_CODEC_ID_NONE)
{
for (int i = 0; i < 16; i++)
{
addAudioStream(&audioStream[i], formatContext, &audio_codec, outputFormat->audio_codec);
}
}
addDataStream(&datastream, formatContext, &video_codec, outputFormat->video_codec);
videoStream.sws_ctx = NULL;
for (int i = 0; i < 16; i++)
{
audioStream[i].sws_ctx = NULL;
}
opt = NULL;
//carreca o codec de video para stream de video...
initVideoCodec(formatContext, video_codec, &videoStream, opt);
//carrega o codec de audio para stream de audio...s
for (int i = 0; i < 16; i++)
{
initAudioCodec(formatContext, audio_codec, &audioStream[i], opt);
}
av_dump_format(formatContext, 0, filename, 1);
//abrea o arquivo de saida..
if (!(outputFormat->flags & AVFMT_NOFILE))
{
ret = avio_open(&formatContext->pb, filename, AVIO_FLAG_WRITE);
if (ret < 0)
{
qDebug("Could not open'%s", filename);
return;
}
}
//escreve o cabecalho do arquivo...
ret = avformat_write_header(formatContext, &opt);
if (ret < 0)
{
qDebug("Error occurred when opening output file");
return;
}
isOpen = true;
QThread::start();
}The code always fails at "avformat_write_header" call.
But if i remove "datastream" or change it to mpegts everything runs fine.
Any ideia of what am i doing wrong here ?
Thanks for reading this.
Helmuth
-
Error : spawn process ffmpeg ChildProcessError
10 juin 2019, par KarnonI wanted to make a program like OBS simply.
My ideal code behavior is to create a child process in Node.js and execute FFMPEG commands to send a webcam stream to yourtube live RTMP server. However, the actual behavior is caused by an error in the child-process-promise module used in node.js.
I’ve checked several questions, but I don’t have enough experience to understand them, and I hope there’s a clear solution.
I guess it was because I couldn’t find the command address of FFMPEG in the Node environment. Or is calling from the socket environment a problem ?
I checked that the FFMPEG command works in a Windows prompt environment.
※ Note : FFMPEG environment variables are registered.
Environment :
Window10,node.js,ffmpegThe code took advantage of a simple WebSocket example.
When I first investigated, I thought that the only way to do this was to use "fluent-effmpeg."
I tried "fluent-ffmpeg" but I couldn’t get my laptop webcam up and running in Windows environments as a parameter for the "fluent-ffmppeg" command.
I’ve also thought about using WebRTC, but I think it’s not for personal use because it’s a P2P connection. (I also saw how to connect a peer connection to a WebRTC server like Janus, but I didn’t have enough references to understand it.)
Below is the code of the problem.
const SocketIO = require("socket.io");
const ffmpeg = require("fluent-ffmpeg");
const spawn = require("child-process-promise").spawn;
module.exports = server => {
const io = SocketIO(server, { path: "/socket.io" });
io.on("connection", socket => {
const req = socket.request;
const ip = req.headers["x-forwarded-for"] || req.connection.remoteAddress;
console.log("새로운 클라이언트 접속!", ip, socket.id, req.ip);
socket.on("disconnect", () => {
console.log("클라이언트 접속해제", ip, socket.id);
clearInterval(socket.interval);
});
socket.on("error", error => {
console.error(error);
});
socket.on("reply", data => {
console.log(data);
ffmpeg_command();
});
});
function ffmpeg_command() {
let arg = [
"-f",
"lavfi",
"-i",
"anullsrc=r=16000:cl=mono",
"-f",
"dshow",
"-ac",
"2",
"-i",
"video='HP Truevision HD'",
"-s",
"1280x720",
"-r",
"10",
"-vcodec",
"libx264",
"-pix_fmt",
"yuv420p",
"-preset",
"ultrafast",
"-r",
"25",
"-g",
"20",
"-b:v",
"2500k",
"-codec:a",
"libmp3lame",
"-ar",
"44100",
"-threads",
"6",
"-b:a",
"11025",
"-bufsize",
"512k",
"-f",
"flv",
"rtmp://a.rtmp.youtube.com/live2/8dfu-69k0-dxyw-896q"
];
spawn("ffmpeg", arg).catch(e => {
console.log(e);
});
}
};Here’s the error : The expected result is that your webcam is working and YouTube live streaming is successful.
{ ChildProcessError: `ffmpeg -f lavfi -i anullsrc=r=16000:cl=mono -f dshow -ac 2 -i video='HP Truevision HD' -s 1280x720 -r 10 -vcodec libx264 -pix_fmt yuv420p -preset ultrafast -r 25 -g 20 -b:v 2500k -codec:a libmp3lame -ar 44100 -threads 6 -b:a 11025 -bufsize 512k -f flv rtmp://a.rtmp.youtube.com/live2/8dfu-69k0-dxyw-896q` failed with code 1
at ChildProcess.<anonymous> (C:\Users\Tricky\Desktop\Work\ESC\ESC_temp\node_modules\child-process-promise\lib\index.js:132:23)
at ChildProcess.emit (events.js:182:13)
at ChildProcess.cp.emit (C:\Users\Tricky\Desktop\Work\ESC\ESC_temp\node_modules\child-process-promise\node_modules\cross-spawn\lib\enoent.js:40:29)
at maybeClose (internal/child_process.js:962:16)
at Socket.stream.socket.on (internal/child_process.js:381:11)
at Socket.emit (events.js:182:13)
at Pipe._handle.close (net.js:606:12)
name: 'ChildProcessError',
code: 1,
childProcess:
ChildProcess {
_events: { error: [Function], close: [Function] },
_eventsCount: 2,
_maxListeners: undefined,
_closesNeeded: 3,
_closesGot: 3,
connected: false,
signalCode: null,
exitCode: 1,
killed: false,
spawnfile: 'ffmpeg',
_handle: null,
spawnargs:
[ 'ffmpeg',
'-f',
'lavfi',
'-i',
'anullsrc=r=16000:cl=mono',
'-f',
'dshow',
'-ac',
'2',
'-i',
'video=\'HP Truevision HD\'',
'-s',
'1280x720',
'-r',
'10',
'-vcodec',
'libx264',
'-pix_fmt',
'yuv420p',
'-preset',
'ultrafast',
'-r',
'25',
'-g',
'20',
'-b:v',
'2500k',
'-codec:a',
'libmp3lame',
'-ar',
'44100',
'-threads',
'6',
'-b:a',
'11025',
'-bufsize',
'512k',
'-f',
'flv',
'rtmp://a.rtmp.youtube.com/live2/8dfu-69k0-dxyw-896q' ],
pid: 18928,
stdin:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: false,
_events: [Object],
_eventsCount: 1,
_maxListeners: undefined,
_writableState: [WritableState],
writable: false,
allowHalfOpen: false,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
[Symbol(asyncId)]: 132,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(timeout)]: null,
[Symbol(kBytesRead)]: 0,
[Symbol(kBytesWritten)]: 0 },
stdout:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: false,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_writableState: [WritableState],
writable: false,
allowHalfOpen: false,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
write: [Function: writeAfterFIN],
[Symbol(asyncId)]: 133,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(timeout)]: null,
[Symbol(kBytesRead)]: 0,
[Symbol(kBytesWritten)]: 0 },
stderr:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: false,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_writableState: [WritableState],
writable: false,
allowHalfOpen: false,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
write: [Function: writeAfterFIN],
[Symbol(asyncId)]: 134,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(timeout)]: null,
[Symbol(kBytesRead)]: 1615,
[Symbol(kBytesWritten)]: 0 },
stdio: [ [Socket], [Socket], [Socket] ],
emit: [Function] },
stdout: undefined,
stderr: undefined }
</anonymous> -
Node.js Error : spawn process ffmpeg ChildProcessError
12 juin 2019, par KarnonI wanted to make a program like OBS simply.
My ideal code behavior is to create a child process in Node.js and execute FFMPEG commands to send a webcam stream to yourtube live RTMP server. However, the actual behavior is caused by an error in the child-process-promise module used in node.js.
I’ve checked several questions, but I don’t have enough experience to understand them, and I hope there’s a clear solution.
I guess it was because I couldn’t find the command address of FFMPEG in the Node environment. Or is calling from the socket environment a problem ?
I checked that the FFMPEG command works in a Windows prompt environment.
※ Note : FFMPEG environment variables are registered.
Environment :
Window10,node.js,ffmpegThe code took advantage of a simple WebSocket example.
When I first investigated, I thought that the only way to do this was to use "fluent-effmpeg."
I tried "fluent-ffmpeg" but I couldn’t get my laptop webcam up and running in Windows environments as a parameter for the "fluent-ffmppeg" command.
I’ve also thought about using WebRTC, but I think it’s not for personal use because it’s a P2P connection. (I also saw how to connect a peer connection to a WebRTC server like Janus, but I didn’t have enough references to understand it.)
Below is the code of the problem.
const SocketIO = require("socket.io");
const ffmpeg = require("fluent-ffmpeg");
const spawn = require("child-process-promise").spawn;
module.exports = server => {
const io = SocketIO(server, { path: "/socket.io" });
io.on("connection", socket => {
const req = socket.request;
const ip = req.headers["x-forwarded-for"] || req.connection.remoteAddress;
console.log("새로운 클라이언트 접속!", ip, socket.id, req.ip);
socket.on("disconnect", () => {
console.log("클라이언트 접속해제", ip, socket.id);
clearInterval(socket.interval);
});
socket.on("error", error => {
console.error(error);
});
socket.on("reply", data => {
console.log(data);
ffmpeg_command();
});
});
function ffmpeg_command() {
let arg = [
"-f",
"lavfi",
"-i",
"anullsrc=r=16000:cl=mono",
"-f",
"dshow",
"-ac",
"2",
"-i",
"video='HP Truevision HD'",
"-s",
"1280x720",
"-r",
"10",
"-vcodec",
"libx264",
"-pix_fmt",
"yuv420p",
"-preset",
"ultrafast",
"-r",
"25",
"-g",
"20",
"-b:v",
"2500k",
"-codec:a",
"libmp3lame",
"-ar",
"44100",
"-threads",
"6",
"-b:a",
"11025",
"-bufsize",
"512k",
"-f",
"flv",
"rtmp://a.rtmp.youtube.com/live2/8dfu-69k0-dxyw-896q"
];
spawn("ffmpeg", arg).catch(e => {
console.log(e);
});
}
};Here’s the error : The expected result is that your webcam is working and YouTube live streaming is successful.
{ ChildProcessError: `ffmpeg -f lavfi -i anullsrc=r=16000:cl=mono -f dshow -ac 2 -i video='HP Truevision HD' -s 1280x720 -r 10 -vcodec libx264 -pix_fmt yuv420p -preset ultrafast -r 25 -g 20 -b:v 2500k -codec:a libmp3lame -ar 44100 -threads 6 -b:a 11025 -bufsize 512k -f flv rtmp://a.rtmp.youtube.com/live2/8dfu-69k0-dxyw-896q` failed with code 1
at ChildProcess.<anonymous> (C:\Users\Tricky\Desktop\Work\ESC\ESC_temp\node_modules\child-process-promise\lib\index.js:132:23)
at ChildProcess.emit (events.js:182:13)
at ChildProcess.cp.emit (C:\Users\Tricky\Desktop\Work\ESC\ESC_temp\node_modules\child-process-promise\node_modules\cross-spawn\lib\enoent.js:40:29)
at maybeClose (internal/child_process.js:962:16)
at Socket.stream.socket.on (internal/child_process.js:381:11)
at Socket.emit (events.js:182:13)
at Pipe._handle.close (net.js:606:12)
name: 'ChildProcessError',
code: 1,
childProcess:
ChildProcess {
_events: { error: [Function], close: [Function] },
_eventsCount: 2,
_maxListeners: undefined,
_closesNeeded: 3,
_closesGot: 3,
connected: false,
signalCode: null,
exitCode: 1,
killed: false,
spawnfile: 'ffmpeg',
_handle: null,
spawnargs:
[ 'ffmpeg',
'-f',
'lavfi',
'-i',
'anullsrc=r=16000:cl=mono',
'-f',
'dshow',
'-ac',
'2',
'-i',
'video=\'HP Truevision HD\'',
'-s',
'1280x720',
'-r',
'10',
'-vcodec',
'libx264',
'-pix_fmt',
'yuv420p',
'-preset',
'ultrafast',
'-r',
'25',
'-g',
'20',
'-b:v',
'2500k',
'-codec:a',
'libmp3lame',
'-ar',
'44100',
'-threads',
'6',
'-b:a',
'11025',
'-bufsize',
'512k',
'-f',
'flv',
'rtmp://a.rtmp.youtube.com/live2/8dfu-69k0-dxyw-896q' ],
pid: 18928,
stdin:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: false,
_events: [Object],
_eventsCount: 1,
_maxListeners: undefined,
_writableState: [WritableState],
writable: false,
allowHalfOpen: false,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
[Symbol(asyncId)]: 132,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(timeout)]: null,
[Symbol(kBytesRead)]: 0,
[Symbol(kBytesWritten)]: 0 },
stdout:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: false,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_writableState: [WritableState],
writable: false,
allowHalfOpen: false,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
write: [Function: writeAfterFIN],
[Symbol(asyncId)]: 133,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(timeout)]: null,
[Symbol(kBytesRead)]: 0,
[Symbol(kBytesWritten)]: 0 },
stderr:
Socket {
connecting: false,
_hadError: false,
_handle: null,
_parent: null,
_host: null,
_readableState: [ReadableState],
readable: false,
_events: [Object],
_eventsCount: 2,
_maxListeners: undefined,
_writableState: [WritableState],
writable: false,
allowHalfOpen: false,
_sockname: null,
_pendingData: null,
_pendingEncoding: '',
server: null,
_server: null,
write: [Function: writeAfterFIN],
[Symbol(asyncId)]: 134,
[Symbol(lastWriteQueueSize)]: 0,
[Symbol(timeout)]: null,
[Symbol(kBytesRead)]: 1615,
[Symbol(kBytesWritten)]: 0 },
stdio: [ [Socket], [Socket], [Socket] ],
emit: [Function] },
stdout: undefined,
stderr: undefined }
</anonymous>
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