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Autres articles (37)
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Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...) -
Selection of projects using MediaSPIP
2 mai 2011, parThe examples below are representative elements of MediaSPIP specific uses for specific projects.
MediaSPIP farm @ Infini
The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...) -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users.
Sur d’autres sites (5685)
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Video file not trimming and copying using FFMpeg in C#
15 mai 2019, par chapperzukI am trying to clip a video using C# in Visual Studios with FFMpeg. I run the code below and it doesn’t come back with any errors, except it doesn’t create a new video file.
I’ve looked around here to make sure I’m using the correct code, but after multiple attempts it still won’t copy.
string videoFile = @"C:\Users\dave\Documents\video 1.mp4";
string outputFile = @"C:\Users\dave\Documents\video 2.mp4";
Process process = new Process();
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.FileName = @"C:\Users\dave\Documents\ffmpeg.exe";
process.StartInfo.Arguments = "ffmpeg -i " + videoFile + " -ss 00:30:00 -t 00:00:10 -c copy " + outputFile;
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.Start();I was expecting to get a video cut from the original video, starting at the 30 second mark and lasting 10 seconds, but nothing is created.
I am using the latest FFMpeg from https://ffmpeg.zeranoe.com/builds/
UPDATE If I run the code in command prompt - The file comes out corrupt though
ffmpeg -i "C:\\Users\\dave\\Documents\\video 1.mp4" -ss 00:30:00 -t 00:00:10 -c copy "C:\\Users\\dave\\Documents\\video 2.mp4"
ffmpeg version N-93851-gdcc999819d Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.3.1 (GCC) 20190414
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
libavutil 56. 27.100 / 56. 27.100
libavcodec 58. 52.101 / 58. 52.101
libavformat 58. 27.103 / 58. 27.103
libavdevice 58. 7.100 / 58. 7.100
libavfilter 7. 51.100 / 7. 51.100
libswscale 5. 4.101 / 5. 4.101
libswresample 3. 4.100 / 3. 4.100
libpostproc 55. 4.100 / 55. 4.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\\Users\\dave\\Documents\\video 1.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
creation_time : 2019-01-15T21:57:04.000000Z
title : My Movie
encoder : Lavf56.15.102
description : This video is about My Movie
Duration: 00:06:48.22, start: 0.000000, bitrate: 1283 kb/s
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 1202 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 2997 tbc (default)
Metadata:
creation_time : 2019-01-15T21:57:04.000000Z
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 74 kb/s (default)
Metadata:
creation_time : 2019-01-15T21:57:04.000000Z
handler_name : SoundHandler
Output #0, mp4, to 'C:\\Users\\dave\\Documents\\video 2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
description : This video is about My Movie
title : My Movie
encoder : Lavf58.27.103
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 1202 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 11988 tbc (default)
Metadata:
creation_time : 2019-01-15T21:57:04.000000Z
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 74 kb/s (default)
Metadata:
creation_time : 2019-01-15T21:57:04.000000Z
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=-1.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A speed= 0x
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown -
PHP/FFmpeg can not save video
19 mai 2019, par tour travelThe error is :
[Sun May 19 11:41:03.158185 2019] [php7:error] [pid 32405] [client
85.133.232.4:35172] PHP Fatal error : Uncaught Alchemy\BinaryDriver\Exception\ExecutionFailureException : ffmpeg
failed to execute command ’/usr/bin/ffmpeg’ ’-y’ ’-i’ ’Sample.mp4’
’-async’ ’1’ ’-metadata:s:v:0’ ’start_time=0’ ’-f’ ’webm’ ’-vcodec’
’libvpx’ ’-acodec’ ’libvorbis’ ’-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’ ’-vf’ ’[in]scale=320:240 [out]’ ’export-webm.webm’ in
/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php:100\nStack
trace :\n#0
/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php(72) :
Alchemy\BinaryDriver\ProcessRunner->doExecutionFailure(’’/usr/bin/ffmpe...’)\n#1
/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/AbstractBinary.php(209) :
Alchemy\BinaryDriver\ProcessRunner->run(Object(Symfony\Component\Process\Process),
Object(SplObjectStorage), false)\n#2
/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/AbstractBinary.php(137) :
Alchemy\BinaryDr in
/vendor/php-ffmpeg/php-ffmpeg/src/FFMpeg/Media/AbstractVideo.php on
line 106aWhat I trying to do is, save video :
require '/vendor/autoload.php';
$ffmpeg = FFMpeg\FFMpeg::create();
$ffprobe = FFMpeg\FFProbe::create();
$video = $ffmpeg->open('Sample.mp4');
$video
->filters()
->resize(new FFMpeg\Coordinate\Dimension(320, 240))
->synchronize();
$video
->save(new FFMpeg\Format\Video\X264('aac'), 'export-x264.mp4')What I have done :
I searched and similar topics tell me to set permission to my files and folders, I set user and also set 755 to files and folders but still I have this error and no success, any idea ?
Errorlog :
Fatal error : Uncaught
Alchemy\BinaryDriver\Exception\ExecutionFailureException : ffmpeg
failed to execute command ’/usr/bin/ffmpeg’ ’-y’ ’-i’ ’Sample.mp4’
’-async’ ’1’ ’-metadata:s:v:0’ ’start_time=0’ ’-vcodec’ ’libx264’
’-acodec’ ’aac’ ’-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’ ’-vf’ ’[in]scale=320:240 [out]’ ’-pass’ ’1’ ’-passlogfile’
’/tmp/ffmpeg-passes5ce11d01dc0038yfbl/pass-5ce11d01dc0c7’
’export-x264.mp4’ in
/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php:100
Stack trace : #0
/vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/ProcessRunner.php(72) :
Alchemy\BinaryDriver\ProcessRunner->doExecutionFailure(’’/usr/bin/ffmpe...’)1 /vendor/alchemy/binary-driver/src/Alchemy/BinaryDriver/AbstractBinary.php(209) :
Alchemy\BinaryDriver\ProcessRunner->run(Object(Symfony\Component\Process\Process),
Object(SplObjectStorage), false) #2 /vendor/alchemy/binary-driver in
/vendor/php-ffmpeg/php-ffmpeg/src/FFMpeg/Media/AbstractVideo.php on
line 106 -
What is the best way to check if audio embedded in video is ambisonic ?
20 mai 2019, par GrzegorzWWe are making 360 video player for VR headsets using Unity. We are trying to achieve spatial audio. The easiest case is when video and audio are in separated files, but now we decided to support also videos with embedded audio. I need to know before i load video if audio is ambisonic or not. I’m looking for an easy way to decide if audio is ambisonic in order to separate it from video and convert to .tbe file, which is currently supported by our app.
I was trying to use ffmpeg :
$./ffmpeg.exe -i ~/Videos/video.mp4and got :
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.3.1 (GCC) 20190414
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:/Users/Medion/Videos/video.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.56.101
Duration: 00:11:39.40, start: 0.000000, bitrate: 17290 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 16497 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Side data:
stereo3d: top and bottom
spherical: equirectangular (0.000000/0.000000/0.000000)
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 4.0, fltp, 778 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream #0:2(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 4.0, fltp, 4 kb/s
Metadata:
handler_name : SoundHandler
Stream #0:3(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 2 kb/s
Metadata:
handler_name : SoundHandler
At least one output file must be specifiedbut I don’t see any line that could indicate that audio is ambisonic. I see that there are 4 channels in streams #0:1 and #0:2, but I bet it’s not enough.
I’ve also tried MediaInfo but it’s the same thing :
General
CompleteName : C:\Users\Medion\Videos\video.mp4
Format/String : MPEG-4
Format_Profile : Base Media
CodecID/String : isom (isom/iso2/avc1/mp41)
FileSize/String : 1.41 GiB
Duration/String : 11 min 39 s
OverallBitRate_Mode/String : Variable
OverallBitRate/String : 17.3 Mb/s
Encoded_Application/String : Lavf57.56.101
Video
ID/String : 1
Format/String : AVC
Format/Info : Advanced Video Codec
Format_Profile : High@L5.2
Format_Settings : CABAC / 3 Ref Frames
Format_Settings_CABAC/String : Yes
Format_Settings_RefFrames/String : 3 frames
Format_Settings_GOP : M=3, N=29
CodecID : avc1
CodecID/Info : Advanced Video Coding
Duration/String : 11 min 39 s
BitRate_Mode/String : Variable
BitRate/String : 16.5 Mb/s
BitRate_Maximum/String : 20.0 Mb/s
Width/String : 3 840 pixels
Height/String : 2 160 pixels
DisplayAspectRatio/String : 16:9
FrameRate_Mode/String : Constant
FrameRate/String : 29.970 (30000/1001) FPS
Standard : NTSC
ColorSpace : YUV
ChromaSubsampling/String : 4:2:0
BitDepth/String : 8 bits
ScanType/String : Progressive
Bits-(Pixel*Frame) : 0.066
StreamSize/String : 1.34 GiB (95%)
Language/String : English
Tagged_Date : UTC 2017-06-13 17:37:51
colour_range : Limited
colour_primaries : BT.709
transfer_characteristics : BT.709
matrix_coefficients : BT.709
Codec configuration box : avcC
Audio #1
ID/String : 2
Format/String : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
CodecID : mp4a-40-2
Duration/String : 11 min 39 s
Source_Duration/String : 11 min 39 s
BitRate_Mode/String : Constant
BitRate/String : 779 kb/s
Channel(s)/String : 4 channels
ChannelLayout : C L R Cb
SamplingRate/String : 48.0 kHz
FrameRate/String : 46.875 FPS (1024 SPF)
Compression_Mode/String : Lossy
StreamSize/String : 64.9 MiB (5%)
Source_StreamSize/String : 64.9 MiB (5%)
Default/String : Yes
AlternateGroup/String : 1
Tagged_Date : UTC 2017-06-13 17:37:51
Audio #2
ID/String : 3
Format/String : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
CodecID : mp4a-40-2
Duration/String : 11 min 39 s
Source_Duration/String : 11 min 39 s
BitRate_Mode/String : Variable
BitRate/String : 4 900 b/s
BitRate_Maximum/String : 266 kb/s
Channel(s)/String : 4 channels
ChannelLayout : C L R Cb
SamplingRate/String : 48.0 kHz
FrameRate/String : 46.875 FPS (1024 SPF)
Compression_Mode/String : Lossy
StreamSize/String : 418 KiB (0%)
Source_StreamSize/String : 418 KiB (0%)
Default/String : No
AlternateGroup/String : 1
Tagged_Date : UTC 2017-06-13 17:37:51
Audio #3
ID/String : 4
Format/String : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
CodecID : mp4a-40-2
Duration/String : 11 min 39 s
Source_Duration/String : 11 min 39 s
BitRate_Mode/String : Variable
BitRate/String : 2 275 b/s
BitRate_Maximum/String : 128 kb/s
Channel(s)/String : 2 channels
ChannelLayout : L R
SamplingRate/String : 48.0 kHz
FrameRate/String : 46.875 FPS (1024 SPF)
Compression_Mode/String : Lossy
StreamSize/String : 194 KiB (0%)
Source_StreamSize/String : 194 KiB (0%)
Default/String : No
AlternateGroup/String : 1
Tagged_Date : UTC 2017-06-13 17:37:51I assume that I don’t know what to look for in those outputs.
Thanks in advance.
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