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Le plugin : Podcasts.
14 juillet 2010, parLe problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
Types de fichiers supportés dans les flux
Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...) -
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 (...) -
XMP PHP
13 mai 2011, parDixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)
Sur d’autres sites (7714)
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How to stream to the stream name come in response from Youtube livestream api
7 décembre 2018, par Anirudha GuptaI am calling this API https://developers.google.com/youtube/v3/live/docs/liveStreams/insert ? to get stream name from Livestream API
{
"kind": "youtube#liveStream",
"etag": "\"etag"",
"id": "-ABa1o",
"snippet": {
"publishedAt": "2018-12-07T05:41:12.000Z",
"channelId": "UC-
"title": "Hello World",
"description": "Snippet description of testing",
"isDefaultStream": false
},
"cdn": {
"format": "360p",
"ingestionType": "rtmp",
"ingestionInfo": {
"streamName": "9qq0-ct85-ctub-",
"ingestionAddress": "rtmp://a.rtmp.youtube.com/live2",
"backupIngestionAddress": "rtmp://b.rtmp.youtube.com/live2?backup=1"
},
"resolution": "360p",
"frameRate": "30fps"
},
"status": {
"streamStatus": "ready",
"healthStatus": {
"status": "noData"
}
},
"contentDetails": {
"closedCaptionsIngestionUrl": "http://upload.youtube.com/closedcaption?cid=9qq0-ct85-ctub-",
"isReusable": true
}
}I see a response like this, When I use OBS to stream to this RMTP URL it doesn’t have the title I set in the stream as you can see come in response. I am getting stream name but not sure if I do it correctly.
If I call the path as
rtmp://a.rtmp.youtube.com/live2/steamnamefromurl/mykey
it’s work but not have the title I set by call API. Anyone please check the page and help what I am going wrong. What I am looking for is get the title and description set for stream, or verified that I am doing it correctly. -
ffmpeg : unable to merge valid mp4 and mp3 together
3 décembre 2018, par yarekI try to merge 2 files
1 mp4 video + 1 mp3 files (both are ok and are playable inside chrome or firefox)mediainfo yarek.mp4
General
Complete name : yarek.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 86.7 KiB
Duration : 5 s 263 ms
mediainfo yarek.mp3
General
Complete name : yarek.mp3
Format : MPEG Audio
File size : 83.9 KiB
Overall bit rate mode : Variable
Writing library : Lavf57.56.101I run :
ffmpeg -i yarek.mp4 -i yarek.mp3 output.mp4Gives me that error :
buffer @ 0x55656c11b0e0] Unable to parse option value "-1" as pixel format
Last message repeated 1 times
[buffer @ 0x55656c11b0e0] Error setting option pix_fmt to value -1.
[graph 0 input from stream 0:0 @ 0x55656c11aa40] Error applying options to the filter.Same problem when I try to extract a JPEG form the mp4 (the mp4 is valid and can be opened within VLC or inside Chrome or Firefow)
/var/www/html/record# ffmpeg -y -i "yarek.mp4" -ss "1" -vframes 1 -q:v 2 output.jpg
ffmpeg version 3.2.12-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d221642ee0] Missing key frame while reordering index according to edit list
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55d221642ee0] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 640x480, 128 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'yarek.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.56.101
comment : {"t": "v", "c": "h264", "s": 1543853355450975, "u": 1543853355472477}
Duration: 00:00:22.73, bitrate: 130 kb/s
Stream #0:0(und): Video: h264 (avc1 / 0x31637661), none, 640x480, 128 kb/s, 14.69 fps, 15 tbr, 90k tbn, 180k tbc (default)
Metadata:
handler_name : VideoHandler
[buffer @ 0x55d221663420] Unable to parse option value "-1" as pixel format
Last message repeated 1 times
[buffer @ 0x55d221663420] Error setting option pix_fmt to value -1.
[graph 0 input from stream 0:0 @ 0x55d221642d60] Error applying options to the filter.
Error opening filters! -
trying to convert mp3 to wav
7 décembre 2018, par Aakash aggarwalI am trying to convert mp3 file to wav format using pyaudio but getting an error
My codefrom pydub import AudioSegment
sound = AudioSegment.from_mp3("v1.mp3")
sound.export("a.wav", format="wav")and I am getting error in line 2 as follow
CouldntDecodeError : Decoding failed. ffmpeg returned error code : 1
Output from ffmpeg/avlib :
b"ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers\n built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1 16.04.10) 20160609\n configuration : —prefix=/usr —extra-version=0ubuntu0.16.04.1 —build-suffix=-ffmpeg —toolchain=hardened —libdir=/usr/lib/x86_64-linux-gnu —incdir=/usr/include/x86_64-linux-gnu —cc=cc —cxx=g++ —enable-gpl —enable-shared —disable-stripping —disable-decoder=libopenjpeg —disable-decoder=libschroedinger —enable-avresample —enable-avisynth —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libcdio —enable-libflite —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable-libmodplug —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-librtmp —enable-libschroedinger —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx265 —enable-libxvid —enable-libzvbi —enable-openal —enable-opengl —enable-x11grab —enable-libdc1394 —enable-libiec61883 —enable-libzmq —enable-frei0r —enable-libx264 —enable-libopencv\n libavutil 54. 31.100 / 54. 31.100\n libavcodec 56. 60.100 / 56. 60.100\n libavformat 56. 40.101 / 56. 40.101\n libavdevice 56. 4.100 / 56. 4.100\n libavfilter 5. 40.101 / 5. 40.101\n libavresample 2. 1. 0 / 2. 1. 0\n libswscale 3. 1.101 / 3. 1.101\n libswresample 1. 2.101 / 1. 2.101\n libpostproc 53. 3.100 / 53. 3.100\n[mp3 @ 0x2446020] Header missing\n Last message repeated 1045 times\n[mp3 @ 0x243d060] decoding for stream 0 failed\n[mp3 @ 0x243d060] Could not find codec parameters for stream 0 (Audio : mp3, 0 channels, s16p) : unspecified frame size\nConsider increasing the value for the ’analyzeduration’ and ’probesize’ options\nv1.mp3 : could not find codec parameters\nInput #0, mp3, from ’v1.mp3’ :\n Duration : N/A, start : 0.000000, bitrate : N/A\n Stream #0:0 : Audio : mp3, 0 channels, s16p\n[abuffer @ 0x2449660] Value inf for parameter ’time_base’ out of range [0 - 2.14748e+09]\n Last message repeated 3 times\n[abuffer @ 0x2449660] Error setting option time_base to value 1/0.\n[graph 0 input from stream 0:0 @ 0x2449540] Error applying options to the filter.\nError opening filters !\n"
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