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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (47)
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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 -
Contribute to translation
13 avril 2011You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
MediaSPIP is currently available in French and English (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (7602)
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Mp4 Video File not playing after downloading using Content Disposition php but it plays when it streams directly from the server
1er juin 2021, par Razor RasshI'm trying to combine a video and audio file using the FFMPEG and it worked successfully for me. The FFMPEG successfully created the MP4 file in the target destination folder. When I'm trying to download the Video file from the destination folder using Content-Disposition in Php. The server successfully downloads the Video file from the exact target folder.


The problem is that when I'm trying to play the video using VLC or any other player, nothing happened. The VLC player just launched and do nothing. I checked the downloaded file size with the video file located on the server and found that they both are the same size.


The code I used for creating Video file and content disposition is,



 $downloadFolderPath = "/var/www/html/temp/{$downloadFolderName}";
 $result = mkdir($downloadFolderPath, 0777); 
 $downloadFileName = "$downloadFolderPath/$filename";
 //echo $downloadFileName;
 $command = $ffmpeglocation." -i $audio_link -i $link -c:v copy -c:a aac -preset fast -crf 20 $downloadFileName 2>&1";
 shell_exec($command);

 $file=fopen($downloadFileName,'r');
 header("Content-Type:video/mp4");
 
 header("Content-Disposition: attachment; filename=$filename");
 
 header('Content-Description: File Transfer');
 header('Content-Type: application/octet-stream');
 
 header('Content-Disposition: attachment; filename="'.basename($downloadFileName).'"');
 header('Expires: 0');
 header('Cache-Control: must-revalidate');
 header('Pragma: public'); 
 header('Content-Length: ' . filesize($downloadFileName)); 
 flush(); // Flush system output buffer
 readfile($downloadFileName); 
 die();


The above code did its purpose by properly downloading the video file hosted on the server. But after downloading, the video file is not playing. I tried to access the file directly through the URL of the file in the browser and it plays fluently in the browser.


Help me out. Sorry for the bad english.


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ffmpeg conversion : Twitter rejects video with "Not valid video"
12 février 2020, par DeadlyBaconI have an app that uploads via twitter api chunked upload, and it finally works with photos.
However, I am trying to get it to work with videos.
Uploading didnt work out-of-the-box even though the video format is mp4. The twitter guidelines for uploads are these
With that in mind, I have this ffmpeg command so far :
ffmpeg -i in.mp4 -vf \"scale=1280:720\" -b:v 5000K -minrate 5000K -maxrate 5000K -b:a 128K -r 30 -f mp4 -vcodec libx264 -profile:v high -pix_fmt yuv420p -strict -2 -ac 2 -acodec aac out.mp4I still get "Not valid video", and I don’t know why.
Here’s my mediainfo output for out.mp4 :
General
Count : 328
Count of stream of this kind : 1
Kind of stream : General
Kind of stream : General
Stream identifier : 0
Count of video streams : 1
Count of audio streams : 1
Video_Format_List : AVC
Video_Format_WithHint_List : AVC
Codecs Video : AVC
Video_Language_List : English
Audio_Format_List : AAC
Audio_Format_WithHint_List : AAC
Audio codecs : AAC LC
Audio_Language_List : English
Complete name : video-5e4405cd4348a5e4405cd434d2.mp4
File name : video-5e4405cd4348a5e4405cd434d2
File extension : mp4
Format : MPEG-4
Format : MPEG-4
Format/Extensions usually used : mov mp4 m4v m4a m4b m4p 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
Commercial name : MPEG-4
Format profile : Base Media
Internet media type : video/mp4
Codec ID : isom
Codec ID : isom (isom/iso2/avc1/mp41)
Codec ID/Url : http://www.apple.com/quicktime/download/standalone.html
CodecID_Compatible : isom/iso2/avc1/mp41
Codec : MPEG-4
Codec : MPEG-4
Codec/Extensions usually used : mov mp4 m4v m4a m4b m4p 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
File size : 52664272
File size : 50.2 MiB
File size : 50 MiB
File size : 50 MiB
File size : 50.2 MiB
File size : 50.22 MiB
Duration : 79744
Duration : 1 min 19 s
Duration : 1 min 19 s 744 ms
Duration : 1 min 19 s
Duration : 00:01:19.744
Duration : 00:01:19:20
Duration : 00:01:19.744 (00:01:19:20)
Overall bit rate : 5283334
Overall bit rate : 5 283 kb/s
Frame rate : 30.000
Frame rate : 30.000 FPS
Frame count : 2390
Stream size : 88780
Stream size : 86.7 KiB (0%)
Stream size : 87 KiB
Stream size : 87 KiB
Stream size : 86.7 KiB
Stream size : 86.70 KiB
Stream size : 86.7 KiB (0%)
Proportion of this stream : 0.00169
HeaderSize : 40
DataSize : 52575500
FooterSize : 88732
IsStreamable : No
File last modification date : UTC 2020-02-12 14:05:37
File last modification date (local) : 2020-02-12 15:05:37
Writing application : Lavf57.83.100
Writing application : Lavf57.83.100
Video
Count : 342
Count of stream of this kind : 1
Kind of stream : Video
Kind of stream : Video
Stream identifier : 0
StreamOrder : 0
ID : 1
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format/Url : http://developers.videolan.org/x264.html
Commercial name : AVC
Format profile : High@L3.1
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, CABAC : Yes
Format settings, ReFrames : 4
Format settings, ReFrames : 4 frames
Internet media type : video/H264
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Codec : AVC
Codec : AVC
Codec/Family : AVC
Codec/Info : Advanced Video Codec
Codec/Url : http://developers.videolan.org/x264.html
Codec/CC : avc1
Codec profile : High@L3.1
Codec settings : CABAC / 4 Ref Frames
Codec settings, CABAC : Yes
Codec_Settings_RefFrames : 4
Duration : 79667
Duration : 1 min 19 s
Duration : 1 min 19 s 667 ms
Duration : 1 min 19 s
Duration : 00:01:19.667
Duration : 00:01:19:20
Duration : 00:01:19.667 (00:01:19:20)
Bit rate : 5000000
Bit rate : 5 000 kb/s
Width : 1280
Width : 1 280 pixels
Height : 720
Height : 720 pixels
Sampled_Width : 1280
Sampled_Height : 720
Pixel aspect ratio : 1.000
Display aspect ratio : 1.778
Display aspect ratio : 16:9
Rotation : 0.000
Frame rate mode : CFR
Frame rate mode : Constant
FrameRate_Mode_Original : VFR
Frame rate : 30.000
Frame rate : 30.000 FPS
Frame count : 2390
Resolution : 8
Resolution : 8 bits
Colorimetry : 4:2:0
Color space : YUV
Chroma subsampling : 4:2:0
Chroma subsampling : 4:2:0
Bit depth : 8
Bit depth : 8 bits
Scan type : Progressive
Scan type : Progressive
Interlacement : PPF
Interlacement : Progressive
Bits/(Pixel*Frame) : 0.181
Stream size : 51297022
Stream size : 48.9 MiB (97%)
Stream size : 49 MiB
Stream size : 49 MiB
Stream size : 48.9 MiB
Stream size : 48.92 MiB
Stream size : 48.9 MiB (97%)
Proportion of this stream : 0.97404
Writing library : x264 - core 152 r2854 e9a5903
Writing library : x264 core 152 r2854 e9a5903
Encoded_Library_Name : x264
Encoded_Library_Version : core 152 r2854 e9a5903
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=abr / mbtree=1 / bitrate=5000 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Language : en
Language : English
Language : English
Language : en
Language : eng
Language : en
Audio
Count : 275
Count of stream of this kind : 1
Kind of stream : Audio
Kind of stream : Audio
Stream identifier : 0
StreamOrder : 1
ID : 2
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Commercial name : AAC
Format profile : LC
Format settings, SBR : No (Explicit)
Format settings, SBR : No (Explicit)
Codec ID : mp4a-40-2
Codec : AAC LC
Codec : AAC LC
Codec/Family : AAC
Codec/CC : 40
Duration : 79744
Duration : 1 min 19 s
Duration : 1 min 19 s 744 ms
Duration : 1 min 19 s
Duration : 00:01:19.744
Duration : 00:01:19:25
Duration : 00:01:19.744 (00:01:19:25)
Bit rate mode : CBR
Bit rate mode : Constant
Bit rate : 128257
Bit rate : 128 kb/s
Channel(s) : 2
Channel(s) : 2 channels
Channel positions : Front: L R
Channel positions : 2/0/0
ChannelLayout : L R
Samples per frame : 1024
Sampling rate : 48000
Sampling rate : 48.0 kHz
Samples count : 3827712
Frame rate : 46.875
Frame rate : 46.875 FPS (1024 SPF)
Frame count : 3738
Compression mode : Lossy
Compression mode : Lossy
Stream size : 1278470
Stream size : 1.22 MiB (2%)
Stream size : 1 MiB
Stream size : 1.2 MiB
Stream size : 1.22 MiB
Stream size : 1.219 MiB
Stream size : 1.22 MiB (2%)
Proportion of this stream : 0.02428
Language : en
Language : English
Language : English
Language : en
Language : eng
Language : en
Default : Yes
Default : Yes
Alternate group : 1
Alternate group : 1Edit : Guess Ill add my PHP code too (This is chopped in a sensible manner because the actual file is very large) :
// Set up Codebird
\Codebird\Codebird::setConsumerKey($consumer_key, $consumer_secret); // static, see README
$cb = \Codebird\Codebird::getInstance();
$cb->setToken($token, $token_secret);
$cb->setTimeout(60 * 1000); // 60 second request timeout
$video = new Video($path);
// Convert to the parameter required by twitter.
$converted = $video->convert();
$path = realpath('videos/' . $converted);
$file = fopen($path, 'rb');
$size = fstat($file)['size'];
$mime_type = mime_content_type($path);
$media = $cb->media_upload([
'command' => 'INIT',
'media_type' => $mime_type,
'media_category' => 'tweet_video',
'total_bytes' => $size,
]);
$success = $media->httpstatus >= 200 && $media->httpstatus < 300; # 2xx
if (!$success) {
throw new TwitterException("Failed to INIT upload for $path...");
}
// APPEND chunks to upload.
$mediaId = $media->media_id_string;
$segmentId = 0;
while (!feof($file)) {
echo "chunk #$segmentId....";
$chunk = fread($file, 512 * 1024); // caps out at 512 MB
echo "chunk size: ". strlen($chunk);
$media = $cb->media_upload([
'command' => 'APPEND',
'media_id' => $mediaId,
'segment_index' => $segmentId,
'media' => $chunk,
]);
$success = $media->httpstatus >= 200 && $media->httpstatus < 300; # 2xx
if (!$success) {
throw new TwitterException("Failed to APPEND to upload for $path, chunk $segmentId...");
}
$segmentId++;
}
// Close file and FINALIZE upload.
fclose($file);
echo "FINALIZING id $mediaId...";
$media = $cb->media_upload([
'command' => 'FINALIZE',
'media_id' => $mediaId,
]);
$success = $media->httpstatus >= 200 && $media->httpstatus < 300; # 2xx
if (!$success) {
var_dump($media);
throw new TwitterException("Failed to FINALIZE upload for $path...");
}
return $mediaId;Video is my ffmpeg class, which I’ll paste below, and $path is a URL leading to a perfectly valid mp4 video.
Video.php :
<?php
class VideoConversionException extends \Exception {}
class Video {
public $name;
public $converted;
public function __construct($name) {
self::clear();
$this->name = $name;
}
public function convert() {
$tmpVideo = 'video-' . uniqid() . uniqid() . '.mp4';
$videoPath = 'videos/' . $tmpVideo;
//$ffmpeg = "ffmpeg -i https://tvcanarias.acfipress.com/BC_190907_gc_teror.mp4 -vf "scale=1280:720" -b:v 5000K -b:a 128K -r 30 -f mp4 -vcodec libx264 -acodec aac output_video.mp4";
$ffmpeg = "ffmpeg -i {$this->name} -vf \"scale=1280:720\" -b:v 5000K -minrate 5000K -maxrate 5000K -b:a 128K -r 30 -f mp4 -vcodec libx264 -profile:v high -pix_fmt yuv420p -strict -2 -ac 2 -acodec aac $videoPath";
//$ffmpeg = "ffmpeg -i {$this->name} -pix_fmt yuv420p -vcodec libx264 -vf scale=640:-1 -acodec aac -vb 1024k -minrate 1024k -maxrate 1024k -bufsize 1024k -ar 44100 -ac 2 -strict experimental -r 30 $videoPath";
$output = [];
exec($ffmpeg, $output, $status);
if ($status != 0) {
//die("Couldnt run ffmpeg. (Error code: #$status)");
throw new VideoConversionException("Couldn't run ffmpeg. (Error code: #$status)");
}
$this->converted = $tmpVideo;
return $tmpVideo;
}
public function shredConverted() {
// delete video.
@unlink("videos/{$this->$converted}");
}
public static function clear() {
// We can't really shred videos right away as they might be still uploading.
// Therefore, every time this library is used, we will just delete videos older
// than, say, an hour.
$files = scandir('videos');
$curtime = time();
foreach ($files as $file) {
if ($file == '.gitignore' || $file == '.' || $file == '..') {
continue;
}
$mtime = filemtime("videos/$file");
$diff = $curtime - $mtime;
$overAnHour = $diff > (60 * 60);
if ($overAnHour) {
@unlink("videos/$file");
}
}
}
} -
How to fix grainy recoding with ffmpeg mp4 x264 ?
21 mars 2020, par teenserieI recorded the audio and video stream from a streaming with ffmpeg. when I go to re-encode the file using libx264, the video in the movements looks bad and grainy as in the image.
Where did I go wrong ?
this is the code I used
ffmpeg -i input.mp4 -c:v libx264 -c:a aac output.mp4and these are mediainfo of original file
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isom
creation_time : 2020-03-19T22:43:32.000000Z
Duration: 00:39:51.99, start: 0.000000, bitrate: 1300 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x1080 [SAR 3:2 DAR 16:9], Closed Captions, 1268 kb/s, 59.94 fps, 59.94 tbr, 90k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(spa): Audio: aac (HE-AACv2) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 22 kb/s (default)
Metadata:
handler_name : SoundHandlermediainfo of the file recoded
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.29.100
Duration: 00:39:51.99, start: 0.000000, bitrate: 7924 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], Closed Captions, 7892 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 119.88 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(spa): Audio: aac (HE-AACv2) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 22 kb/s (default)
Metadata:
handler_name : SoundHandlerHow can I recode the file without loss of quality ? (sorry for my poor english)
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