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Médias (1)
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DJ Dolores - Oslodum 2004 (includes (cc) sample of “Oslodum” by Gilberto Gil)
15 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
Autres articles (77)
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Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
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
Sur d’autres sites (5988)
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Out of memory on ffmpeg when converting to H265
18 août 2017, par LionI’ve a bunch of video files, mostly H264. To save storage, I wrote a batch script, that converts all of them to H265 using ffmpeg. Problem : Some files cause ffmpeg to use ALL my memory (24 GB). Then it crashes (cause it try to allocate even more RAM), which stops the converting process.
I think that these files are corrupt in some kind. Because with other files, it works well with low memory consumption. Now I want to reject those broken ones, so that unattended converting is possible.
How is it possible to detect such corruption ? Can ffmpeg do this, or is a third party tool required ?
My ffmpeg call
set crf=20
set codec=265
ffmpeg -hide_banner -i "!fullSourcePath!" -c:v libx%codec% -crf %crf% "%targetPath%\!targetFileName!"mkvalidator can’t help
mkvalidator says that a corrupt file is valid :
mkvalidator.exe "V:\Filme\_LegacyFormat\22 Jump Street.mkv"
........................................................................................................................
WRN0D0: There are 5306 bytes of void data..
mkvalidator 0.5.0: the file appears to be valid
file created with libebml v1.3.0 + libmatroska v1.4.1 / mkvmerge v6.9.1 ('Blue Panther') 64bit built on Apr 18 2014 18:23:38eac3to331 can’t help, too
I found the tool eac3to331, which has a
checkflag. But it gave me no errors, although the tested file seems corrupt (cause my PC to crash after several minutes running ffmpeg)eac3to.exe -check "V:\Filme\_LegacyFormat\22 Jump Street.mkv"
MKV, 1 video track, 2 audio tracks, 1 subtitle track, 1:51:57, 24p /1.001
1: h264/AVC, English, 1920x808 24p /1.001 (240:101)
2: DTS, German, 5.1 channels, 1509kbps, 48kHz
3: DTS, English, 5.1 channels, 1509kbps, 48kHz
4: Subtitle (SRT), German
v01 Extracting video track number 1...
a02 Extracting audio track number 2...
a03 Extracting audio track number 3...
s04 Extracting subtitle track number 4...
Video track 1 contains 161039 frames.
eac3to processing took 1 minute, 26 seconds.
Done. -
Converting mp4 audio & video for HTML5
10 janvier 2020, par CrayzzitSo I have two files.
frag_bunny.mp4andraw.mp4(you can download them in a tar on my Google drive). Thefrag_bunny.mp4works perfectly when I use it with the MediaSource’s JavaScript API. But it’s not the case withraw.mp4, why is that ?Here’s the
mediainfooffrag_bunny.mp4:General
Complete name : frag_bunny.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/avc1/iso5)
File size : 5.27 MiB
Duration : 1 min 0 s
Overall bit rate : 734 kb/s
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L3
Format settings : 2 Ref Frames
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Format settings, GOP : M=1, N=64
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 min 0 s
Bit rate : 613 kb/s
Width : 640 pixels
Height : 360 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 23.976 (23976/1000) FPS
Minimum frame rate : 7.317 FPS
Maximum frame rate : 24.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.111
Stream size : 4.39 MiB (83%)
Language : English
Color range : Limited
Color primaries : BT.601 NTSC
Transfer characteristics : BT.709
Matrix coefficients : BT.601
Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : mp4a-40-2
Duration : 1 min 0 s
Bit rate mode : Constant
Bit rate : 64.0 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 22.05 kHz
Frame rate : 21.533 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 478 KiB (9%)
Language : English
Other #1
ID : 3
Type : Hint
Format : RTP
Codec ID : rtp
Duration : 1 min 0 s
Language : English
Other #2
ID : 4
Type : Hint
Format : RTP
Codec ID : rtp
Duration : 1 min 0 s
Language : EnglishAnd same for
raw.mp4:General
Complete name : raw.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/iso2/avc1/mp41)
File size : 16.9 MiB
Duration : 3 min 32 s
Overall bit rate : 668 kb/s
Writing application : Lavf57.83.100
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 3 min 32 s
Bit rate : 532 kb/s
Width : 640 pixels
Height : 360 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.092
Stream size : 13.4 MiB (80%)
Writing library : x264 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=6 / lookahead_threads=1 / 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=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : mp4a-40-2
Duration : 3 min 32 s
Bit rate mode : Constant
Bit rate : 132 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 3.30 MiB (20%)
Default : Yes
Alternate group : 1 -
How do I skip audio 1 and transcode audio 2 to aac with ffmpg ? [closed]
25 septembre 2024, par CA OpaI have videos with 2 audio tracks. Track 1 is ac3 foreign and track 2 is flac English. I only want to transcode the English track 2. When I use ffmpg to map track 2 and transcode to aac the result is vorbis.


Here is my code :


"ffmpeg.exe" -i "U:\infile.mkv" -map 0:v:0 -c:v:0 copy -map 0:a:1 -c:a:1 aac -ac:a:1 2 -b:a:1 192000 -map 0:s:0 -c:s copy "U:\Outfile.mkv"


This is what happens :


Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709/unknown/unknown, progressive), 1278x720 [SAR 1:1 DAR 71:40], 23.98 fps, 23.98 tbr, 1k tbn (default)
 Stream #0:1(rus): Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s (default)
 Metadata:
 title : Многоголосый закадровый, студия "Селена Интернешнл"
 Stream #0:2(eng): Audio: flac, 48000 Hz, stereo, s16
 Stream #0:3(eng): Subtitle: subrip (srt)
[out#0/matroska @ 000001b979895440] Codec AVOption b:a:1 (set bitrate (in bits/s)) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some decoder which was not actually used for any stream.
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
 Stream #0:2 -> #0:1 (flac (native) -> vorbis (libvorbis))
 Stream #0:3 -> #0:2 (copy)
Press [q] to stop, [?] for help
Output #0, matroska, to 'U:\Outfile.mkv':
 Metadata:
 encoder : Lavf61.5.101
 Chapters:
 Chapter #0:0: start 0.000000, end 180.000000
 Metadata:
 title : On a Cold Night...
 Stream #0:0(eng): Video: h264 (High) (H264 / 0x34363248), yuv420p(tv, bt709/unknown/unknown, progressive), 1278x720 [SAR 1:1 DAR 71:40], q=2-31, 23.98 fps, 23.98 tbr, 1k tbn (default)
 Stream #0:1(eng): Audio: vorbis (oV[0][0] / 0x566F), 48000 Hz, stereo, fltp
 Metadata:
 encoder : Lavc61.11.100 libvorbis
 Stream #0:2(eng): Subtitle: subrip
[out#0/matroska @ 000001b979895440] video:174005KiB audio:1635KiB subtitle:1KiB other streams:0KiB global headers:4KiB muxing overhead: 0.059971%


If I transcode both audio tracks it succeeds.


"ffmpeg.exe" -i "infile.mkv" -map 0:v:0 -c:v:0 copy -map 0:a:0 -c:a:0 aac -ac:a:0 2 -b:a:0 192000 -map 0:a:1 -c:a:1 aac -ac:a:1 2 -b:a:1 192000 -map 0:s:0 -c:s copy "Outfile.mkv"


If I just transcoding track 1 it works. Why does it fail when I only map audio track 2 ?


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