Recherche avancée
Autres articles (112)
-
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 ;
-
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 -
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 (13348)
-
Metadata in mp3 not working when piping from ffmpeg with album art
10 février 2019, par CromonIn my program I am piping a webm from a stream to ffmpeg and then pipe the output to a http request. Part of the process is adding metadata for the mp3. This has so far worked great. However after adding an image as album art it has started to act unexpected.
First this is the command line I am using inside the program :
val parameters = listOf("ffmpeg",
"-i", "-",
"-i", albumImage.absolutePath,
"-map", "0",
"-map", "1",
"-c:v", "copy",
"-f", "mp3",
"-id3v2_version", "4",
"-metadata", "title=${info.title}",
"-metadata", "album=YouTube",
"-metadata", "artist=${info.author}",
"-metadata:s:v", "title=Album Cover",
"-metadata:s:v", "comment=Cover (front)",
"-"
)It creates a valid mp3 file and I can find both the metadata and the image in the mp3 file, however when playing it none of them are displayed in VLC or anywhere else. To test various configurations I have converted it to the command line.
In a first try I have saved the video and the image and stopped using pipes altogether, which results in this :
ffmpeg -i video.webm -i image.jpeg -map 0 -map 1 -c:v copy -f mp3 -id3v2_version 4 -metadata title="Tiësto & KSHMR feat. Vassy - Secrets (Official Music Video)" -metadata album="YouTube" -metadata artist="Spinnin' Records" -metadata:s:v title="Album Cover" -metadata:s:v comment="Cover (front)" output3.mp3In this case all metadata including the album art is displayed in VLC.
I then recreated the same thing as in my program, piping both video input and audio output, looking like this :
ffmpeg -i - -i image.jpeg -map 0 -map 1 -c:v copy -f mp3 -id3v2_version 4 -metadata title="Tiësto & KSHMR feat. Vassy - Secrets (Official Music Video)" -metadata album="YouTube" -metadata artist="Spinnin' Records" -metadata:s:v title="Album Cover" -metadata:s:v comment="Cover (front)" - < video.webm > output3.mp3This file is the same as my programs output. Neither title nor album nor album image are displayed (however it can play the file)
To test a few more options I have hardcoded the output file but pipe the input file like this :
ffmpeg -i - -i image.jpeg -map 0 -map 1 -c:v copy -f mp3 -id3v2_version 4 -metadata title="Tiësto & KSHMR feat. Vassy - Secrets (Official Music Video)" -metadata album="YouTube" -metadata artist="Spinnin’ Records" -metadata:s:v title="Album Cover" -metadata:s:v comment="Cover (front)" output3.mp3 < video.webm
Now the metadata is working again. When hardcoding the input video and piping the output, its again gone.
So to sum up : When piping the output of ffmpeg the metadata in the file is not properly working. Interestingly the stderr output of ffmpeg looks quite similar
Hardcoded output3.mp3 :
ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
Input #0, matroska,webm, from 'pipe:':
Metadata:
encoder : google/video-file
Duration: 00:03:39.58, start: -0.007000, bitrate: N/A
Stream #0:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
Input #1, image2, from 'image.jpeg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 1466 kb/s
Stream #1:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 320x180, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (opus (native) -> mp3 (libmp3lame))
Stream #1:0 -> #0:1 (copy)
Output #0, mp3, to 'output3.mp3':
Metadata:
TPE1 : Spinnin' Records
TIT2 : Tiësto & KSHMR feat. Vassy - Secrets (Official Music Video)
TALB : YouTube
TSSE : Lavf57.83.100
Stream #0:0(eng): Audio: mp3 (libmp3lame), 48000 Hz, stereo, fltp (default)
Metadata:
encoder : Lavc57.107.100 libmp3lame
Stream #0:1: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 320x180, q=2-31, 25 tbr, 25 tbn, 25 tbc
Metadata:
title : Album Cover
comment : Cover (front)With pipe output :
ffmpeg version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2000-2018 the FFmpeg developers
Input #0, matroska,webm, from 'pipe:':
Metadata:
encoder : google/video-file
Duration: 00:03:39.58, start: -0.007000, bitrate: N/A
Stream #0:0(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
Input #1, image2, from 'image.jpeg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 1466 kb/s
Stream #1:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 320x180, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (opus (native) -> mp3 (libmp3lame))
Stream #1:0 -> #0:1 (copy)
Output #0, mp3, to 'pipe:':
Metadata:
TPE1 : Spinnin' Records
TIT2 : Tiësto & KSHMR feat. Vassy - Secrets (Official Music Video)
TALB : YouTube
TSSE : Lavf57.83.100
Stream #0:0(eng): Audio: mp3 (libmp3lame), 48000 Hz, stereo, fltp (default)
Metadata:
encoder : Lavc57.107.100 libmp3lame
Stream #0:1: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 320x180, q=2-31, 25 tbr, 25 tbn, 25 tbc
Metadata:
title : Album Cover
comment : Cover (front) -
lavc/vaapi_encode_av1 : Fix encode fail since 9db68ed0
13 septembre 2024, par Fei Wang -
lavc/vaapi_hevc : Set correct rps type for scc
16 février 2023, par Linjie Fu
Syndiquer tout le site
