Recherche avancée
Médias (2)
-
Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
-
Carte de Schillerkiez
13 mai 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (50)
-
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...)
Sur d’autres sites (7616)
-
How can I fix video processing and 500 Error - (Laravel, FFmpeg)
19 juillet 2019, par San Martín Figueroa PabloI’m setting up a new website with Laravel for uploading videos...
I have read all the possible solutions but none of them help me to solve the issue...This is my issue : When I upload a small file (<10mb) the web works fine, the video get uploaded and the video get converted, the dashboard shows the converted videos---
When I try to upload a large file, the file get uploaded, the video get converted with a green frame on it (really uggly) and the site goes to a 500 server error...
I’m using Laravel Jobs to do the conversion.
My Controller code :
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Storage;
use Symfony\Component\HttpFoundation\Response;
use Carbon;
use Closure;
use App\Jobs\ConvertVideoForPreview;
use FFMpeg\FFProbe;
use FFMpeg\Coordinate\Dimension;
use FFMpeg\Format\Video\X264;
use Pawlox\VideoThumbnail\Facade\VideoThumbnail;
use Pbmedia\LaravelFFMpeg\FFMpegFacade as FFMpeg;
use Illuminate\Contracts\Filesystem\Filesystem;
use App\Video;
class VideoController extends Controller
{
public function createVideo(){
return view('video.createVideo');
}
public function saveVideo(Request $request){
set_time_limit(0);
ini_set('memory_limit', '1024M');
//Validar Formulario
$validatedData = $this -> validate($request, [
'title' => 'required',
'description' => 'required',
'palabras' => 'required',
'video' => 'mimetypes:video/mp4,video/quicktime'
]);
$video = new Video();
$user = \Auth::user();
$video -> user_id = $user->id;
$video -> title = $request -> input('title');
$video -> description = $request -> input('description');
$video -> palabras = $request -> input('palabras');
$video_file = $request -> file('video');
if($video_file){
$video_path = 'original'.'_'.$video_file ->
getClientOriginalName();
Storage::disk('videos')-> put($video_path,
\File::get($video_file));
$videoUrl = storage_path('app/videos/').$video_path;
$storageUrl = storage_path('app/thumbs/');
$fileName = 'thumb'.'_'.time().'.jpg';
$second = 2;
VideoThumbnail::createThumbnail($videoUrl, $storageUrl,
$fileName, $second, $width = 640, $height = 480);
$video -> preview = $fileName;
$video -> video_path = $video_path;
}
$video -> save();
ConvertVideoForPreview::dispatch($video);
return redirect() -> route('home')
-> with (array(
'message' => 'El video se ha enviado con exito'));
}
public function getImage($filename){
$file = Storage::disk('thumbs') -> get($filename);
return new Response($file, 200);
}
public function getVideo($filename){
$file = Storage::disk('converted_videos') ->
get($filename);
return new Response($file, 200);
}
}This is my ConvertVideo Job :
<?php
namespace App\Jobs;
use App\Video;
use Carbon\Carbon;
use FFMpeg;
use FFMpeg\Format\Video\X264;
use Illuminate\Http\Request;
use Illuminate\Bus\Queueable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
class ConvertVideoForPreview implements ShouldQueue
{
use Dispatchable, InteractsWithQueue, Queueable,
SerializesModels;
public $video;
public function __construct(Video $video)
{
$this -> video = $video;
}
public function handle()
{
$converted_name= 'preview'.'-'.$this -> video ->
video_path.'.mp4';
FFMpeg::open('videos/'.$this -> video -> video_path)
-> export()
-> inFormat(new \FFMpeg\Format\Video\X264)
-> save('converted_videos/'.$converted_name);
$this -> video -> update([
'video_preview' => $converted_name,
'processed' => true
]);
}
}One of my goals is to upload large video files (<=4GB), show a uploading process bar and a encoding process bar during the video upload.
I getting this error :
[core:error] [pid 14787:tid 139975366489856] [client
201.188.26.12:51022] Script timed out before returning headers:
index.php,It’s happend when the video es proccesing and the redirect to home dashboard it’s call...
The FFMPEG works :
[2019-07-19 17:20:41] local.INFO: ffprobe executed command successfully
[2019-07-19 17:21:52] local.INFO: ffmpeg executed command successfully
[2019-07-19 17:21:52] local.INFO: ffmpeg running command '/usr/local/bin/ffmpeg' '-y' '-i' '/home/tribus/public_html/storage/app/videos/original_Sequence 01.mov' '-threads' '12' '-vcodec' 'libx264' '-acodec' 'libfaac' '-b:v' '1000k' '-refs' '6' '-coder' '1' '-sc_threshold' '40' '-flags' '+loop' '-me_range' '16' '-subq' '7' '-i_qfactor' '0.71' '-qcomp' '0.6' '-qdiff' '4' '-trellis' '1' '-b:a' '128k' '-pass' '2' '-passlogfile' '/tmp/ffmpeg-passes5d31fbe9010e6ldt9s/pass-5d31fbe90152d' '/home/tribus/public_html/storage/app/converted_videos/preview-original_Sequence 01.mov.mp4'I have tried : Change all the memory and file size in PHP.ini, Nginx, Apache... (Probably I’m missing one)...
Changed timeouts too.
My environment : VPS 4GB 50GB, APACHE 2.4, PHP7.3, MySql MariaDB, WebServer : Apache-Nginx, Laravel 5.8.
Can anyone help me to reach this ?...
This is how the large video looks after converted and show 500 error in the browser :
Error video processed -
ffmpeg generate thumbnails on GPU
22 juin 2018, par Oleksandr KyrpaI try to generate thumbnails with acceleration on GPU, so compile ffmpeg 3.4.1 and run command :
./ffmpeg -i ~/Videos/1080.mp4 -vf "hwupload_cuda,thumbnail_cuda=100,scale_cuda=107:60,hwdownload,format=yuv420p" -vframes 1 -y ~/Videos/thumbs/thumb%03d.jpgBut I get wrong output picture (the color of thumbnail is green) :
Correct image must be black.
How to make first image with correct color ?
log : -loglevel verbose
ffmpeg version N-89707-g89b84cb Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
configuration: --cpu=native --enable-pthreads --extra-version=hd --enable-gnutls --enable-vaapi --enable-vdpau --enable-nonfree --enable-gpl --enable-swscale --enable-libx264 --enable-version3 --enable-nvenc --enable-libnpp --enable-cuda --enable-cuvid --enable-cuda-sdk --enable-filter=scale_cuda --enable-filter=thumbnail_cuda --extra-cflags=-I/usr/local/cuda-8.0/include --extra-ldflags=-L/usr/local/cuda-8.0/lib64
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 11.100 / 7. 11.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
[h264 @ 0x392ed40] Reinit context to 1920x1088, pix_fmt: yuv420p
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/alex/Videos/1080.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2012-05-30T20:01:34.000000Z
Duration: 00:01:14.21, start: 0.000000, bitrate: 5476 kb/s
Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 / 0x31637661), yuv420p(left), 1920x1080 (1920x1088), 5321 kb/s, 29.97 fps, 29.97 tbr, 60k tbn, 59.94 tbc (default)
Metadata:
creation_time : 1970-01-01T00:00:00.000000Z
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 152 kb/s (default)
Metadata:
creation_time : 2012-05-30T20:01:34.000000Z
handler_name : IsoMedia File Produced by Google, 5-11-2011
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[h264 @ 0x3a38280] Reinit context to 1920x1088, pix_fmt: yuv420p
[Parsed_thumbnail_cuda_1 @ 0x4e3d8c0] batch size: 100 frames
[graph 0 input from stream 0:0 @ 0x4e8b640] w:1920 h:1080 pixfmt:yuv420p tb:1/60000 fr:30000/1001 sar:0/1 sws_param:flags=2
[auto_scaler_0 @ 0x4e8ca00] w:iw h:ih flags:'bicubic' interl:0
[format @ 0x4e8b540] auto-inserting filter 'auto_scaler_0' between the filter 'Parsed_format_4' and the filter 'format'
[Parsed_scale_cuda_2 @ 0x4e89380] w:1920 h:1080 -> w:107 h:60
[swscaler @ 0x4ebf0c0] deprecated pixel format used, make sure you did set range correctly
[auto_scaler_0 @ 0x4e8ca00] w:107 h:60 fmt:yuv420p sar:0/1 -> w:107 h:60 fmt:yuvj420p sar:0/1 flags:0x4
Output #0, image2, to '/home/alex/Videos/thumbs/thumb%03d.jpg':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
encoder : Lavf58.3.100
Stream #0:0(und): Video: mjpeg, 1 reference frame, yuvj420p(pc, left), 107x60, q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc (default)
Metadata:
creation_time : 1970-01-01T00:00:00.000000Z
handler_name : VideoHandler
encoder : Lavc58.9.100 mjpeg
Side data:
cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
[Parsed_thumbnail_cuda_1 @ 0x4e3d8c0] frame id #76 (pts_time=2.535867) selected from a set of 100 images
No more output streams to write to, finishing.
frame= 1 fps=0.9 q=3.1 Lsize=N/A time=00:00:02.56 bitrate=N/A speed=2.26x
video:2kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Input file #0 (/home/alex/Videos/1080.mp4):
Input stream #0:0 (video): 115 packets read (134655 bytes); 101 frames decoded;
Input stream #0:1 (audio): 1 packets read (9 bytes);
Total: 116 packets (134664 bytes) demuxed
Output file #0 (/home/alex/Videos/thumbs/thumb%03d.jpg):
Output stream #0:0 (video): 1 frames encoded; 1 packets muxed (1864 bytes);
Total: 1 packets (1864 bytes) muxedUPDATE, working !
Add format=nv12 before hwupload-vf "format=nv12,hwupload_cuda,thumbnail_cuda,scale_cuda=1280:720,hwdownload,format=nv12" -
Encoding images to h264 and rtp output : SDP file without sprop-parameter-sets does not play
14 septembre 2021, par oarfishtl ;dr : I try to encode acquired camera frames to h264, send via RTP
and play this back on another device. SDP file generated by ffmpeg for
a sample video has info which my own SDP file misses. My SDP file
plays in ffplay, but not VLC, while both play ffmpeg's SDP file. I am
suspecting missing sprop-parameter-sets in my SDP file.


Ultimately I want to play this back in VLC.



I am writing code that encodes images to h264 and outputs to an RTP
server (or client ? anyway the part that is listening). I generate an
SDP file for this.


- 

- ffplay plays the stream without problem
- mplayer shows a green box embedded in a larger black box, but I read
somewhere it only supports mpegts over RTP, so not sure
- VLC does not play the SDP file.








Now when instead I use some random video and have ffmpeg output an SDP
file like so


ffmpeg -re -i some.mp4 -an -c:v copy -f rtp -sdp_file
video.sdp "rtp://127.0.0.1:5004"


I can see that the generated SDP file – which plays in both ffplay and
VLC – includes the base64 encoded
sprop-parameter-setsfield, and
removing this causes the stream to not play.

> cat video.sdp
v=0
o=- 0 0 IN IP4 127.0.0.1
s=No Name
c=IN IP4 127.0.0.1
t=0 0
a=tool:libavformat 58.76.100
m=video 5004 RTP/AVP 96
b=AS:1034
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1;
sprop-parameter-sets=Z2QANKzZQDAA7fiMBagICAoAAAMAAgAAAwDwHjBjLA==,aOvjyyLA;
profile-level-id=640034


My own SDP file on the other hand, does not contain this information,
and VLC hangs for 10s and then stops trying with "no data received".


> cat test.sdp
v=0
o=- 0 0 IN IP4 127.0.0.1
s=No Name
c=IN IP4 127.0.0.1
t=0 0
a=tool:libavformat 58.76.100
m=video 44499 RTP/AVP 96
b=AS:2000
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1


So my theory is that my custom code must somehow add this SPS
information to the SDP file. But despite hours of searching, I could
not find a structured way to set the extradata field on the
AVStream's
AVCodecParams. The code I'm using is roughly this (I'm sure there's
unrelated errors in there) :

// variables
std::vector imgbuf;
AVFormatContext *ofmt_ctx = nullptr;
AVCodec *out_codec = nullptr;
AVStream *out_stream = nullptr;
AVCodecContext *out_codec_ctx = nullptr;
SwsContext *swsctx = nullptr;
cv::Mat canvas_;
unsigned int height_;
unsigned int width_;
unsigned int fps_;
AVFrame *frame_ = nullptr;

AVOutputFormat *format = av_guess_format("rtp", nullptr, nullptr);
const auto url = std::string("rtp://127.0.0.1:5001");
avformat_alloc_output_context2(ofmt_ctx, format, format->name, url.c_str());

out_codec = avcodec_find_encoder(AV_CODEC_ID_H264);
stream = avformat_new_stream(ofmt_ctx, out_codec);
out_codec_ctx = avcodec_alloc_context3(out_codec);

// then, for each incoming image:
while (receive_image) {
 static bool first_time = true;
 if (first_time) {
 // discover necessary params such as image dimensions from the first
 // received image
 first_time = false;
 height_ = image.rows;
 width_ = image.cols;

 codec_ctx->codec_tag = 0;
 codec_ctx->bit_rate = 2e6;
 // does nothing, unfortunately
 codec_ctx->thread_count = 1;
 codec_ctx->codec_id = AV_CODEC_ID_H264;
 codec_ctx->codec_type = AVMEDIA_TYPE_VIDEO;
 codec_ctx->width = width_;
 codec_ctx->height = height_;
 codec_ctx->gop_size = 6;
 codec_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
 codec_ctx->framerate = fps_;
 codec_ctx->time_base = av_inv_q(fps_);

 avcodec_parameters_from_context(stream, out_codec_ctx);

 // this stuff is empty: is that the problem?
 stream->codecpar->extradata = codec_ctx->extradata;
 stream->codecpar->extradata_size = codec_ctx->extradata_size;

 AVDictionary *codec_options = nullptr;
 av_dict_set(&codec_options, "profile", "high", 0);
 av_dict_set(&codec_options, "preset", "ultrafast", 0);
 av_dict_set(&codec_options, "tune", "zerolatency", 0);

 // open video encoder
 avcodec_open2(codec_ctx, codec, &codec_options);

 stream->time_base.num = 1;
 stream->time_base.den = fps_;
 avio_open(&(ofmt_ctx->pb), ofmt_ctx->filename, AVIO_FLAG_WRITE);

 /* Write a file for VLC */
 char buf[200000];
 AVFormatContext *ac[] = {ofmt_ctx};
 av_sdp_create(ac, 1, buf, 20000);
 printf("sdp:\n%s\n", buf);
 FILE *fsdp = fopen("test.sdp", "w");
 fprintf(fsdp, "%s", buf);
 fclose(fsdp);

 swsctx = sws_getContext(width_, height_, AV_PIX_FMT_BGR24, width_, height_,
 out_codec_ctx->pix_fmt, SWS_BICUBIC, nullptr,
 nullptr, nullptr);
 }

 if (!frame_) {
 frame_ = av_frame_alloc();

 std::uint8_t *framebuf = new uint8_t[av_image_get_buffer_size(
 codec_ctx->pix_fmt, width_, height_, 1)];
 av_image_fill_arrays(frame_->data, frame_->linesize, framebuf,
 codec_ctx->pix_fmt, width, height, 1);
 frame_->width = width_;
 frame_->height = height_;
 frame_->format = static_cast<int>(codec_ctx->pix_fmt);
 success = avformat_write_header(ofmt_ctx, nullptr);
 }
 if (imgbuf.empty()) {
 imgbuf.resize(height_ * width_ * 3 + 16);
 canvas_ = cv::Mat(height_, width_, CV_8UC3, imgbuf.data(), width_ * 3);
 } else {
 image.copyTo(canvas_);
 }

 const int stride[] = {static_cast<int>(image.step[0])};

 sws_scale(swsctx, &canvas_.data, stride, 0, canvas_.rows, frame_->data,
 frame_->linesize);
 frame_->pts += av_rescale_q(1, out_codec_ctx->time_base, stream->time_base);

 AVPacket pkt = {0};
 avcodec_send_frame(out_codec_ctx, frame_);
 avcodec_receive_packet(out_codec_ctx, &pkt);
 av_interleaved_write_frame(ofmt_ctx, &pkt);
}
</int></int>

Can anyone offer some advice here ?


—


Update


When setting


this->out_codec_ctx->flags |=AV_CODEC_FLAG_GLOBAL_HEADER;


extradata is actually present in the codec context, but I had to move
avcodec_parameters_from_context()afteravcodec_open2(), as the extradata is empty before opening the codec. I now getsprop-parameter-setsin the SDP file, but VLC still does not play it.

Syndiquer tout le site
