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Médias (33)
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Stereo master soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
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#7 Ambience
16 octobre 2011, par
Mis à jour : Juin 2015
Langue : English
Type : Audio
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#6 Teaser Music
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#5 End Title
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#3 The Safest Place
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#4 Emo Creates
15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
Autres articles (55)
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Mise à jour de la version 0.1 vers 0.2
24 juin 2013, parExplications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...) -
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 ;
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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)
Sur d’autres sites (7569)
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Vedanti and Max Sound vs. Google
14 août 2014, par Multimedia Mike — Legal/EthicalVedanti Systems Limited (VSL) and Max Sound Coporation filed a lawsuit against Google recently. Ordinarily, I wouldn’t care about corporate legal battles. However, this one interests me because it’s multimedia-related. I’m curious to know how coding technology patents might hold up in a real court case.
Here’s the most entertaining complaint in the lawsuit :
Despite Google’s well-publicized Code of Conduct — “Don’t be Evil” — which it explains is “about doing the right thing,” “following the law,” and “acting honorably,” Google, in fact, has an established pattern of conduct which is the exact opposite of its claimed piety.
I wonder if this is the first known case in which Google has been sued over its long-obsoleted “Don’t be evil” mantra ?
Researching The Plaintiffs
I think I made a mistake by assuming this lawsuit might have merit. My first order of business was to see what the plaintiff organizations have produced. I have a strong feeling that these might be run of the mill patent trolls.VSL currently has a blank web page. Further, the Wayback Machine only has pages reaching back to 2011. The earliest page lists these claims against a plain black background (I’ve highlighted some of the more boisterous claims and the passages that make it appear that Vedanti doesn’t actually produce anything but is strictly an IP organization) :
The inventions key :
The patent and software reduced any data content, without compressing, up to a 97% total reduction of the data which also produces a lossless result. This physics based invention is often called the Holy Grail.Vedanti Systems Intellectual Property
Our strategic IP portfolio is granted in all of the world’s largest technology development and use countries. A major value indemnification of our licensee products is the early date of invention filing and subsequent Issue. Vedanti IP has an intrinsic 20 year patent protection and valuation in royalties and licensing. The original data transmission art has no prior art against it.Vedanti Systems invented among other firsts, The Slice and Partitioning of Macroblocks within a RGB Tri level region in a frame to select or not, the pixel.
Vedanti Systems invention is used in nearly every wireless chipset and handset in the world
Our original pixel selection system revolutionized wireless handset communications. An example of this system “Slice” and “Macroblock Partitioning” is used throughout Satellite channel expansion, Wireless partitioning, Telecom – Video Conferencing, Surveillance Cameras, and 2010 developing Media applications.
Vedanti Systems is a Semiconductor based software, applications, and IP Continuations Intellectual Property company.
Let’s move onto the other plaintiff, Max Sound. They have a significantly more substantive website. They also have an Android app named Spins HD Audio, which appears to be little more than a music player based on the screenshots.
Max Sound also has a stock ticker symbol : MAXD. Something clicked into place when I looked up their ticker symbol : While worth only a few pennies, it was worth a few more pennies after this lawsuit was announced, which might be one of the motivations behind the lawsuit.
Here’s a trick I learned when I was looking for a new tech job last year : When I first look at a company’s website and am trying to figure out what they really do, I head straight to their jobs/careers page. A lot of corporate websites have way too much blathering corporatese that can be tough to cut through. But when I see what mix of talent and specific skills they are hoping to hire, that gives me a much better portrait of what the company does.
The reason I bring this up is because this tech company doesn’t seem to have jobs/careers page.
The Lawsuit
The core complaint centers around Patent 7974339 : Optimized data transmission system and method. It was filed in July 2004 (or possibly as early as January 2002), issued in July 2011, and assigned (purchased ?) by Vedanti in May 2012. The lawsuit alleges that nearly everything Google has ever produced (or, more accurately, purchased) leverages the patented technology.The patent itself has 5 drawings. If you’ve ever seen a multimedia codec patent, or any whitepaper on a multimedia codec, you’ve seen these graphs before. E.g., “Raw pixels come in here -> some analysis happens here -> more analysis happens over here -> entropy coding -> final bitstream”. The text of a patent document isn’t meant to be particularly useful. I’ve tried to understand this stuff before and it never goes well. Skimming the text, I just see a blur of the words data, transmission, pixel, and matrix.
So I read the complaint to try to figure out what this is all about. To summarize the storyline as narrated by the lawsuit, some inventors were unhappy with the state of video compression in 2001 and endeavored to create something better. So they did, and called it the VSL codec. This codec is so far undocumented on the MultimediaWiki, so it probably has yet to be seen “in the wild”. Good luck finding hard technical data on it now since searches for “VSL codec” are overwhelmed by articles about this lawsuit. Also, the original codec probably wasn’t called VSL because VSL is apparently an IP organization formed much later.
Then, the protagonists of the lawsuit patented the codec. Then, years later, Google wanted to purchase a video codec that they could open source and use to supplant H.264.
The complaint goes on to allege that in 2010, Google specifically contacted VSL to possibly license or acquire this mysterious VSL technology. Google was allegedly allowed to study the technology, eventually decided not to continue discussions, and shipped back the proprietary materials.
Here’s where things get weird. When Google shipped back the materials, they allegedly shipped back a bunch of Post-It notes. The notes are alleged to contain a ton of incriminating evidence. The lawsuit claims that the notes contained such tidbits as :
- Google was concerned that its infringement could be considered “recklessness” (the standard applicable to willful infringement) ;
- Google personnel should “try” to destroy incriminating emails ;
- Google should consider a “design around” because it was facing a “risk of litigation.”
Actually, given Google’s acquisition of On2, I can totally believe that last one (On2’s codecs have famously contained a lot of weirdness which is commonly suspected to be attributable to designing around known patents).
Anyway, a lot of this case seems to hinge on the authenticity of these Post-It notes :
“65. The Post-It notes are unequivocal evidence of Google’s knowledge of the ’339 Patent and infringement by Defendants”
I wish I could find a stock photo of a stack of Post-It notes in an evidence bag.
I’ve worked at big technology companies. Big tech companies these days are very diligent about indoctrinating employees about IP liability issues. The reason this Post-It situation strikes me as odd is because the alleged contents of the notes basically outline everything the corporate lawyers tell you NOT to do.
Analysis
I’m trying to determine what specific algorithms and coding techniques. I guess I was expecting to see a specific claim that, “Our patent outlines this specific coding technique and here is unequivocal proof that Google A) uses the same technique, and B) specifically did so after looking at our patent.” I didn’t find that (well, a bit of part B, c.f., the Post-It note debacle), but maybe that’s not how these patent lawsuits operate. I’ve never kept up before.Maybe it’s just a patent troll. Maybe it’s for the stock bump. I’m expecting to see pump-n-dump stock spam featuring the stock symbol MAXD anytime now.
I’ve never been interested in following a lawsuit case carefully before. I suddenly find myself wondering if I can subscribe to the RSS feed for this case ? Too much to hope for. But I found this item through Pando and maybe they’ll stay on top of it.
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Problems with frame rate on video conversion using ffmpeg with libx264 [migrated]
29 mai 2013, par Lars SchroeterI have problems with transcoding some videos. I ran the most simple ffmpeg command and it takes very long time and the output file is about 10 times bigger. If I provide the frame rate parameter -r it works well (small file, fast transcoding). What is the problem and how can I solve it ? I don't want to set a fixed frame rate because I guess it's better to leave it the same as source, isn't it ?.
Maybe the problem is something else, because I found many examples in web where the -r option isn't used. Also transcoding to a different format or with a different source works well without -r option (I tried with ffmpeg 0.7.15 and also 1.2.1). The videos are provided by the users of my website and automatically converted to be suitable for the web. So I need the most general command for automatic conversion.
In the following ffmpeg output you will find this two suspicious messages :
- Frame rate very high for a muxer not effciciently supporting it. Please consider specifiying a lower framerate, a different muxer or -vsync 2
- MB rate (36000000) > level limit (983040)
The ffmpeg command and output (without -r option) :
ffmpeg -i '/tmp/standort_aquarium.mp4' -vcodec libx264 output.mp4
ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers built on Feb 22 2013 07:18:58 with gcc 4.4.5 configuration : —enable-libdc1394 —prefix=/usr —extra-cflags='-Wall -g ' —cc='ccache cc' —enable-shared —enable-libmp3lame —enable-gpl —enable-libvorbis —enable-pthreads —enable-libfaac —enable-libxvid —enable-postproc —enable-x11grab —enable-libgsm —enable-libtheora —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libx264 —enable-libspeex —enable-nonfree —disable-stripping —enable-avfilter —enable-libdirac —disable-decoder=libdirac —enable-libfreetype —enable-libschroedinger —disable-encoder=libschroedinger —enable-version3 —enable-libopenjpeg —enable-libvpx —enable-librtmp —extra-libs=-lgcrypt —disable-altivec —disable-armv5te —disable-armv6 —disable-vis
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/standort_aquarium.mp4' :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp423gp4isom
creation_time : 2013-04-19 15:04:05
Duration : 00:00:18.24, start : 0.000000, bitrate : 2095 kb/s
Stream #0.0(und) : Video : mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 2001 kb/s, 14.97 fps, 30k tbr, 30k tbn, 30k tbc
Metadata :
creation_time : 2013-04-19 15:04:05
Stream #0.1(und) : Audio : aac, 48000 Hz, mono, s16, 96 kb/s
Metadata :
creation_time : 2013-04-19 15:04:05
File 'output.mp4' already exists. Overwrite ? [y/N] y
[mp4 @ 0x20eed80] Frame rate very high for a muxer not effciciently supporting it.
Please consider specifiying a lower framerate, a different muxer or -vsync 2
[buffer @ 0x20f8820] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param :
[libx264 @ 0x20efde0] Default settings detected, using medium profile
[libx264 @ 0x20efde0] using SAR=1/1
[libx264 @ 0x20efde0] MB rate (36000000) > level limit (983040)
[libx264 @ 0x20efde0] using cpu capabilities : MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
[libx264 @ 0x20efde0] profile High, level 5.1
[libx264 @ 0x20efde0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options : 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=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
Output #0, mp4, to 'output.mp4' :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp423gp4isom
creation_time : 2013-04-19 15:04:05
encoder : Lavf52.111.0
Stream #0.0(und) : Video : libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30k tbn, 30k tbc
Metadata :
creation_time : 2013-04-19 15:04:05
Stream #0.1(und) : Audio : libfaac, 48000 Hz, mono, s16, 64 kb/s
Metadata :
creation_time : 2013-04-19 15:04:05
Stream mapping :
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop, [?] for help
frame=542630 fps=132 q=33.0 Lsize= 77226kB time=00:00:18.08 bitrate=34976.2kbits/s dup=542358 drop=0
video:68604kB audio:143kB global headers:0kB muxing overhead 12.333275%
frame I:2174 Avg QP:18.72 size : 25040
[libx264 @ 0x20efde0] frame P:136846 Avg QP:25.27 size : 56
[libx264 @ 0x20efde0] frame B:403610 Avg QP:32.99 size : 20
[libx264 @ 0x20efde0] consecutive B-frames : 0.8% 0.0% 0.1% 99.1%
[libx264 @ 0x20efde0] mb I I16..4 : 5.5% 83.3% 11.1%
[libx264 @ 0x20efde0] mb P I16..4 : 0.0% 0.0% 0.0% P16..4 : 0.5% 0.0% 0.0% 0.0% 0.0% skip:99.4%
[libx264 @ 0x20efde0] mb B I16..4 : 0.0% 0.0% 0.0% B16..8 : 0.0% 0.0% 0.0% direct : 0.0% skip:100.0% L0:21.2% L1:78.8% BI : 0.0%
[libx264 @ 0x20efde0] 8x8 transform intra:83.1% inter:85.2%
[libx264 @ 0x20efde0] coded y,uvDC,uvAC intra : 91.2% 95.8% 80.7% inter : 0.0% 0.1% 0.0%
[libx264 @ 0x20efde0] i16 v,h,dc,p : 13% 40% 12% 35%
[libx264 @ 0x20efde0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 19% 34% 15% 4% 4% 5% 6% 7% 8%
[libx264 @ 0x20efde0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 20% 38% 6% 4% 6% 6% 8% 6% 6%
[libx264 @ 0x20efde0] i8c dc,h,v,p : 39% 32% 19% 10%
[libx264 @ 0x20efde0] Weighted P-Frames : Y:0.0% UV:0.0%
[libx264 @ 0x20efde0] ref P L0 : 91.5% 5.2% 2.8% 0.4% 0.0%
[libx264 @ 0x20efde0] ref B L0 : 55.7% 43.5% 0.8%
[libx264 @ 0x20efde0] ref B L1 : 97.9% 2.1%
[libx264 @ 0x20efde0] kb/s:31071.04The ffmpeg command and output with the -r 24 option :
ffmpeg -i '/tmp/standort_aquarium.mp4' -r 30000/1001 -vcodec libx264 output.mp4
ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers
built on Feb 22 2013 07:18:58 with gcc 4.4.5
configuration : —enable-libdc1394 —prefix=/usr —extra-cflags='-Wall -g ' —cc='ccache cc' —enable-shared —enable-libmp3lame —enable-gpl —enable-libvorbis —enable-pthreads —enable-libfaac —enable-libxvid —enable-postproc —enable-x11grab —enable-libgsm —enable-libtheora —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libx264 —enable-libspeex —enable-nonfree —disable-stripping —enable-avfilter —enable-libdirac —disable-decoder=libdirac —enable-libfreetype —enable-libschroedinger —disable-encoder=libschroedinger —enable-version3 —enable-libopenjpeg —enable-libvpx —enable-librtmp —extra-libs=-lgcrypt —disable-altivec —disable-armv5te —disable-armv6 —disable-vis
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/standort_aquarium.mp4' :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp423gp4isom
creation_time : 2013-04-19 15:04:05
Duration : 00:00:18.24, start : 0.000000, bitrate : 2095 kb/s
Stream #0.0(und) : Video : mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 2001 kb/s, 14.97 fps, 30k tbr, 30k tbn, 30k tbc
Metadata :
creation_time : 2013-04-19 15:04:05
Stream #0.1(und) : Audio : aac, 48000 Hz, mono, s16, 96 kb/s
Metadata :
creation_time : 2013-04-19 15:04:05
File 'output.mp4' already exists. Overwrite ? [y/N] y
[buffer @ 0x132e820] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param :
[libx264 @ 0x1325de0] Default settings detected, using medium profile
[libx264 @ 0x1325de0] using SAR=1/1
[libx264 @ 0x1325de0] using cpu capabilities : MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
[libx264 @ 0x1325de0] profile High, level 3.0
[libx264 @ 0x1325de0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options : 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=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
Output #0, mp4, to 'output.mp4' :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp423gp4isom
creation_time : 2013-04-19 15:04:05
encoder : Lavf52.111.0
Stream #0.0(und) : Video : libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30k tbn, 29.97 tbc
Metadata :
creation_time : 2013-04-19 15:04:05
Stream #0.1(und) : Audio : libfaac, 48000 Hz, mono, s16, 64 kb/s
Metadata :
creation_time : 2013-04-19 15:04:05
Stream mapping :
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop, [?] for help
frame= 542 fps= 36 q=29.0 Lsize= 2059kB time=00:00:18.01 bitrate= 936.3kbits/s dup=270 drop=0
video:1904kB audio:143kB global headers:0kB muxing overhead 0.609224%
frame I:3 Avg QP:22.39 size : 14773
[libx264 @ 0x1325de0] frame P:514 Avg QP:23.98 size : 3675
[libx264 @ 0x1325de0] frame B:25 Avg QP:27.44 size : 643
[libx264 @ 0x1325de0] consecutive B-frames : 93.7% 0.0% 1.1% 5.2%
[libx264 @ 0x1325de0] mb I I16..4 : 16.4% 78.3% 5.3%
[libx264 @ 0x1325de0] mb P I16..4 : 1.6% 6.3% 0.3% P16..4 : 30.8% 8.6% 3.1% 0.0% 0.0% skip:49.4%
[libx264 @ 0x1325de0] mb B I16..4 : 0.4% 0.7% 0.0% B16..8 : 13.2% 1.6% 0.2% direct : 0.3% skip:83.6% L0:50.0% L1:47.1% BI : 2.9%
[libx264 @ 0x1325de0] 8x8 transform intra:77.1% inter:83.1%
[libx264 @ 0x1325de0] coded y,uvDC,uvAC intra : 62.0% 76.4% 24.4% inter : 17.9% 26.3% 2.3%
[libx264 @ 0x1325de0] i16 v,h,dc,p : 14% 60% 13% 13%
[libx264 @ 0x1325de0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 35% 33% 2% 3% 3% 3% 3% 4%
[libx264 @ 0x1325de0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 40% 12% 4% 7% 7% 7% 5% 4%
[libx264 @ 0x1325de0] i8c dc,h,v,p : 46% 34% 16% 4%
[libx264 @ 0x1325de0] Weighted P-Frames : Y:8.0% UV:4.5%
[libx264 @ 0x1325de0] ref P L0 : 65.6% 16.7% 8.8% 7.9% 0.9%
[libx264 @ 0x1325de0] ref B L0 : 85.9% 13.3% 0.8%
[libx264 @ 0x1325de0] ref B L1 : 88.7% 11.3%
[libx264 @ 0x1325de0] kb/s:862.28The video source is temporarily available under : https://www.dropbox.com/s/4xg147z77u40g87/standort_aquarium.mp4
-
Problems with frame rate on video conversion using ffmpeg with libx264
29 mai 2013, par Lars SchroeterI have problems with transcoding some videos. I ran the most simple ffmpeg command and it takes very long time and the output file is about 10 times bigger. If I provide the frame rate parameter -r it works well (small file, fast transcoding). What is the problem and how can I solve it ? I don't want to set a fixed frame rate because I guess it's better to leave it the same as source, isn't it ?.
Maybe the problem is something else, because I found many examples in web where the -r option isn't used. Also transcoding to a different format or with a different source works well without -r option (I tried with ffmpeg 0.7.15 and also 1.2.1). The videos are provided by the users of my website and automatically converted to be suitable for the web. So I need the most general command for automatic conversion.
In the following ffmpeg output you will find this two suspicious messages :
- Frame rate very high for a muxer not effciciently supporting it. Please consider specifiying a lower framerate, a different muxer or -vsync 2
- MB rate (36000000) > level limit (983040)
The ffmpeg command and output (without -r option) :
ffmpeg -i '/tmp/standort_aquarium.mp4' -vcodec libx264 output.mp4
ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers built on Feb 22 2013 07:18:58 with gcc 4.4.5 configuration : —enable-libdc1394 —prefix=/usr —extra-cflags='-Wall -g ' —cc='ccache cc' —enable-shared —enable-libmp3lame —enable-gpl —enable-libvorbis —enable-pthreads —enable-libfaac —enable-libxvid —enable-postproc —enable-x11grab —enable-libgsm —enable-libtheora —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libx264 —enable-libspeex —enable-nonfree —disable-stripping —enable-avfilter —enable-libdirac —disable-decoder=libdirac —enable-libfreetype —enable-libschroedinger —disable-encoder=libschroedinger —enable-version3 —enable-libopenjpeg —enable-libvpx —enable-librtmp —extra-libs=-lgcrypt —disable-altivec —disable-armv5te —disable-armv6 —disable-vis
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/standort_aquarium.mp4' :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp423gp4isom
creation_time : 2013-04-19 15:04:05
Duration : 00:00:18.24, start : 0.000000, bitrate : 2095 kb/s
Stream #0.0(und) : Video : mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 2001 kb/s, 14.97 fps, 30k tbr, 30k tbn, 30k tbc
Metadata :
creation_time : 2013-04-19 15:04:05
Stream #0.1(und) : Audio : aac, 48000 Hz, mono, s16, 96 kb/s
Metadata :
creation_time : 2013-04-19 15:04:05
File 'output.mp4' already exists. Overwrite ? [y/N] y
[mp4 @ 0x20eed80] Frame rate very high for a muxer not effciciently supporting it.
Please consider specifiying a lower framerate, a different muxer or -vsync 2
[buffer @ 0x20f8820] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param :
[libx264 @ 0x20efde0] Default settings detected, using medium profile
[libx264 @ 0x20efde0] using SAR=1/1
[libx264 @ 0x20efde0] MB rate (36000000) > level limit (983040)
[libx264 @ 0x20efde0] using cpu capabilities : MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
[libx264 @ 0x20efde0] profile High, level 5.1
[libx264 @ 0x20efde0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options : 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=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
Output #0, mp4, to 'output.mp4' :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp423gp4isom
creation_time : 2013-04-19 15:04:05
encoder : Lavf52.111.0
Stream #0.0(und) : Video : libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30k tbn, 30k tbc
Metadata :
creation_time : 2013-04-19 15:04:05
Stream #0.1(und) : Audio : libfaac, 48000 Hz, mono, s16, 64 kb/s
Metadata :
creation_time : 2013-04-19 15:04:05
Stream mapping :
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop, [?] for help
frame=542630 fps=132 q=33.0 Lsize= 77226kB time=00:00:18.08 bitrate=34976.2kbits/s dup=542358 drop=0
video:68604kB audio:143kB global headers:0kB muxing overhead 12.333275%
frame I:2174 Avg QP:18.72 size : 25040
[libx264 @ 0x20efde0] frame P:136846 Avg QP:25.27 size : 56
[libx264 @ 0x20efde0] frame B:403610 Avg QP:32.99 size : 20
[libx264 @ 0x20efde0] consecutive B-frames : 0.8% 0.0% 0.1% 99.1%
[libx264 @ 0x20efde0] mb I I16..4 : 5.5% 83.3% 11.1%
[libx264 @ 0x20efde0] mb P I16..4 : 0.0% 0.0% 0.0% P16..4 : 0.5% 0.0% 0.0% 0.0% 0.0% skip:99.4%
[libx264 @ 0x20efde0] mb B I16..4 : 0.0% 0.0% 0.0% B16..8 : 0.0% 0.0% 0.0% direct : 0.0% skip:100.0% L0:21.2% L1:78.8% BI : 0.0%
[libx264 @ 0x20efde0] 8x8 transform intra:83.1% inter:85.2%
[libx264 @ 0x20efde0] coded y,uvDC,uvAC intra : 91.2% 95.8% 80.7% inter : 0.0% 0.1% 0.0%
[libx264 @ 0x20efde0] i16 v,h,dc,p : 13% 40% 12% 35%
[libx264 @ 0x20efde0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 19% 34% 15% 4% 4% 5% 6% 7% 8%
[libx264 @ 0x20efde0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 20% 38% 6% 4% 6% 6% 8% 6% 6%
[libx264 @ 0x20efde0] i8c dc,h,v,p : 39% 32% 19% 10%
[libx264 @ 0x20efde0] Weighted P-Frames : Y:0.0% UV:0.0%
[libx264 @ 0x20efde0] ref P L0 : 91.5% 5.2% 2.8% 0.4% 0.0%
[libx264 @ 0x20efde0] ref B L0 : 55.7% 43.5% 0.8%
[libx264 @ 0x20efde0] ref B L1 : 97.9% 2.1%
[libx264 @ 0x20efde0] kb/s:31071.04The ffmpeg command and output with the -r 24 option :
ffmpeg -i '/tmp/standort_aquarium.mp4' -r 30000/1001 -vcodec libx264 output.mp4
ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers
built on Feb 22 2013 07:18:58 with gcc 4.4.5
configuration : —enable-libdc1394 —prefix=/usr —extra-cflags='-Wall -g ' —cc='ccache cc' —enable-shared —enable-libmp3lame —enable-gpl —enable-libvorbis —enable-pthreads —enable-libfaac —enable-libxvid —enable-postproc —enable-x11grab —enable-libgsm —enable-libtheora —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libx264 —enable-libspeex —enable-nonfree —disable-stripping —enable-avfilter —enable-libdirac —disable-decoder=libdirac —enable-libfreetype —enable-libschroedinger —disable-encoder=libschroedinger —enable-version3 —enable-libopenjpeg —enable-libvpx —enable-librtmp —extra-libs=-lgcrypt —disable-altivec —disable-armv5te —disable-armv6 —disable-vis
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/tmp/standort_aquarium.mp4' :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp423gp4isom
creation_time : 2013-04-19 15:04:05
Duration : 00:00:18.24, start : 0.000000, bitrate : 2095 kb/s
Stream #0.0(und) : Video : mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3], 2001 kb/s, 14.97 fps, 30k tbr, 30k tbn, 30k tbc
Metadata :
creation_time : 2013-04-19 15:04:05
Stream #0.1(und) : Audio : aac, 48000 Hz, mono, s16, 96 kb/s
Metadata :
creation_time : 2013-04-19 15:04:05
File 'output.mp4' already exists. Overwrite ? [y/N] y
[buffer @ 0x132e820] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param :
[libx264 @ 0x1325de0] Default settings detected, using medium profile
[libx264 @ 0x1325de0] using SAR=1/1
[libx264 @ 0x1325de0] using cpu capabilities : MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
[libx264 @ 0x1325de0] profile High, level 3.0
[libx264 @ 0x1325de0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options : 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=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
Output #0, mp4, to 'output.mp4' :
Metadata :
major_brand : mp42
minor_version : 0
compatible_brands : mp423gp4isom
creation_time : 2013-04-19 15:04:05
encoder : Lavf52.111.0
Stream #0.0(und) : Video : libx264, yuv420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 30k tbn, 29.97 tbc
Metadata :
creation_time : 2013-04-19 15:04:05
Stream #0.1(und) : Audio : libfaac, 48000 Hz, mono, s16, 64 kb/s
Metadata :
creation_time : 2013-04-19 15:04:05
Stream mapping :
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop, [?] for help
frame= 542 fps= 36 q=29.0 Lsize= 2059kB time=00:00:18.01 bitrate= 936.3kbits/s dup=270 drop=0
video:1904kB audio:143kB global headers:0kB muxing overhead 0.609224%
frame I:3 Avg QP:22.39 size : 14773
[libx264 @ 0x1325de0] frame P:514 Avg QP:23.98 size : 3675
[libx264 @ 0x1325de0] frame B:25 Avg QP:27.44 size : 643
[libx264 @ 0x1325de0] consecutive B-frames : 93.7% 0.0% 1.1% 5.2%
[libx264 @ 0x1325de0] mb I I16..4 : 16.4% 78.3% 5.3%
[libx264 @ 0x1325de0] mb P I16..4 : 1.6% 6.3% 0.3% P16..4 : 30.8% 8.6% 3.1% 0.0% 0.0% skip:49.4%
[libx264 @ 0x1325de0] mb B I16..4 : 0.4% 0.7% 0.0% B16..8 : 13.2% 1.6% 0.2% direct : 0.3% skip:83.6% L0:50.0% L1:47.1% BI : 2.9%
[libx264 @ 0x1325de0] 8x8 transform intra:77.1% inter:83.1%
[libx264 @ 0x1325de0] coded y,uvDC,uvAC intra : 62.0% 76.4% 24.4% inter : 17.9% 26.3% 2.3%
[libx264 @ 0x1325de0] i16 v,h,dc,p : 14% 60% 13% 13%
[libx264 @ 0x1325de0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 35% 33% 2% 3% 3% 3% 3% 4%
[libx264 @ 0x1325de0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 40% 12% 4% 7% 7% 7% 5% 4%
[libx264 @ 0x1325de0] i8c dc,h,v,p : 46% 34% 16% 4%
[libx264 @ 0x1325de0] Weighted P-Frames : Y:8.0% UV:4.5%
[libx264 @ 0x1325de0] ref P L0 : 65.6% 16.7% 8.8% 7.9% 0.9%
[libx264 @ 0x1325de0] ref B L0 : 85.9% 13.3% 0.8%
[libx264 @ 0x1325de0] ref B L1 : 88.7% 11.3%
[libx264 @ 0x1325de0] kb/s:862.28The video source is temporarily available under : https://www.dropbox.com/s/4xg147z77u40g87/standort_aquarium.mp4
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