I also tried the CLI command suggested in the comments of another question. It's in a little script as follows:----mencoder -profile PS3 "$1" -o _temp_0_0.mp4 && ffmpeg -y -i _temp_0_0.mp4 -f mp4 -acodec copy -vcodec copy "$1".mp4 && rm _temp_0_0.mp4----Very simple, but works well. 0. MP4 (MPEG-4 Video) is a multimedia container and a compression standard for video, audio and other data (such as subtitle, image, text and more), developed by the Moving Picture Experts Group (MPEG). Select the Video_TS folder with the VOB files you want to covnert and click "OK". Handbrake will convert the multiple VOB files into one MP4 file. Hey! I just had to click on "Convert / Save", add the input file, select the MP4 profile, configure Video codec and Audio codec to "Keep original video / audio track", choose a destination file, and click on "Start". Fix flv file with small errors. First-Person Games vs. Third-Person Games: What Are the Differences? Other then that I only know of the following tools: http://www.kigo-video-converter.com/free-video-converter-mac/index.html, Miro Video Converter (only has presets for mobile devices, maybe quality is good enough). Do I have to incur finance charges on my credit card to help my credit rating? For your Windows 10 PC, VLC works as a decent disc ripping tool as it facilitates converting DVD contents into for MP4 format. Can I save seeds that already started sprouting for storage? However, there are MANY more options available. How can I get my cat to let me study his wound? 1. DIVX encoding on a G5 dual is twice as faster as realtime. Cropping videos to perfectly fit YouTube 16:9 dimensions with PiTiVi or Kdenlive? Since Matroska can handle most arbitrary streams I included -map 0. If you're using MPlayer 1.2 you are encouraged to upgrade. MC0.7.0.4399 can treat dual audio TS properly except the case of ffmpeg/nero/LC-AAC. I was hoping to encode them to a format viewable on the PB. Please check the copyright l… #4472: AAC copy from stream without encoding fails, Tips to stay focused and finish your hobby project, Podcast 292: Goodbye to Flash, we’ll see you in Rust, MAINTENANCE WARNING: Possible downtime early morning Dec 2, 4, and 9 UTC…. what does "scrap" mean in "“father had taught them to do: drive semis, weld, scrap.” book “Educated” by Tara Westover. It was almost perfect. Now that I've used VLC for video conversion, I would recommend it. Mine is a headless linux system. I have a MacBook Pro running Mac OS X 10.6.6, http://www.macmediatool.com/convertvideomac/convert-video-ts-to-mp4-for-ipod-iphone-ipad.html. By "lossless" I believe lacton meant "remuxing". Super-fast. Contribute to nsi88/video_converter development by creating an account on GitHub. The sample file I provided is indeed truncated. to make sure you get the desired order. 11 thoughts on “How to Fix Out of Sync Audio/Video in an MKV, MP4 or AVI” Michael Cannon. Hot Network Questions Famous grandmaster games of "torturous" winning or flaunting out of arrogance? These phone cleaner apps for Android help you clear out junk files taking up space on your device. It runs on Linux, Windows, and Mac OS X, and has a very user-friendly interface. mencoder -of mpeg -ovc lavc -lavcopts vcodec=mpeg4 -oac mp3lame -lameopts abr:br=128 -subcp utf8 -sub video_orig.srt video_orig.mp4 -o video_proc_mpeg4_mp3.mp4 After some reading I found out mencoder's muxer is broken and this needs to be fixed with another tool like ffmpeg, so I tried with: Please confirm your email address in the email we just sent you. Many conversions are faster than realtime. How to get good quality when converting digital video? if you run the following command: ffmpeg -i input.avi -y output.mp4 In such case ffmpeg re-encodes elementary streams within input.avi (cahnge containers and re-encode is the default mode of ffmpeg). Batch Convert .mp4 to .avi with ffmpeg. Another option is h264enc, it's a sophisticated shell around mencoder and other tools to generate high quality mp4 files. http://www.enolsoft.com/dvd-ripper-for-mac.html. 0. how to convert audio (.3gpp) file to video file? Now my problem is that I record the raw TV-stream (video uses h264 and sound is ac3 5 channels) as a ".ts" stream file. I tried avidemux with the settings "copy" for the video and audio streams, and the "PS" container format for MPEG. If you have access to the original media (the DVD) of the VIDEO_TS folder I suggest to use Handbrake (http://handbrake.fr/) to convert it to MP4. ffmpeg is not supporting .wmv files. Click on the "Browse" button under "Destination". So, for "demuxing and muxing" without changing the name of the file use: I have added that to Thunar's custom actions and to FileManager Actions Configuration tool (Nautilus, Nemo, Caja, PCManFM), like so: while restricting it to "*.ts" in Thunar and video/mp2t in FileManager Actions. The actual file I want to remux is too big for easy sharing. # ".\codecs\mencoder.exe" pipe:7 -demuxer rawvideo -rawvideo fps=25/1:w=720:h=57 6:format=i420 -passlogfile "d:\downloads\videoconvert\temp\mcpass3040.log" -of rawvideo -ovc x264 -x264encopts bitrate=710:qcomp=0.6:qp_min=10:qp_max=51:qp_ste p=4:dct_decimate:me=hex:me_range=16:keyint=250:keyint_min=25:fast_pskip:cabac:di … Part 1. I fought with mencoder and ffmpeg last night for a while with the best results being a … If in doubt re-encode to H.264 + AAC as shown below. 3. Ubuntu and Canonical are registered trademarks of Canonical Ltd. It seems you have found out how to rip a DVD title to a single VOB file. Transcoding – Converting the extracted data into a suitable format such as mp4 If you wish to play or rip encrypted DVDs, you must install the libdvd* packages on your Linux distro. What Is SoundCloud and Is It Free to Use. With VLC it was a simple adjustment and the sound and video was coordinated correctly for the rest of the video. I wanted to convert a file from AVI (mpeg2, mp3) to MP4 (mpeg4, aac) to be able to play it on another device (one without VLC). The files are taken from a live stream, however I'm trying to merge them in a diffrent order and not the order they were streamed. Can a fluid approach the speed of light according to the equation of continuity? This is basically how one converts a video. Data extraction – Copying DVD data to a hard disk 2. Required java runtime 6 and over. mencoder -oac copy -ovc copy -o “joined.avi” “1.avi” “2.avi ... and using the same codec, but any video format that mencoder recognizes is fine. For handbrake presetting, I suppose this article "Handbrake Presets for iPad and iPhone 4" in iFunia can do some help for you. ffmpeg, mencoder video converter to mp4, m3u8. ), 6 Fast Ways to Browse the Web Without a Mouse, How to Set Up a Raspberry Pi Media Server: 7 Ways, The Best Polaroid Cameras and Instant Print Cameras for Kids, 8 Classic Operating Systems You Can Access in Your Browser. See FFmpeg Wiki: H.264 for more info. Basically you're limited by the format you chose. ffmpeg - Create a mp3 file with album art from an mkv file, DVD Audio Playback Silent - how to find codec, Error opening file using avconv conversion from mp4 to mov. question. I think that mencoder/ffmpeg don't really support the mp4 container, and a subsequent muxer is needed to convert the output to mp4. How to convert .ts file into a mainstream format losslessly? rev 2020.12.4.38131, The best answers are voted up and rise to the top. Found what you were looking for? Perhaps RAW. In spite of such bugs implied, MC0.7.5.4742 can convert japanese/english to japanese/english when input file is once encoded .m2ts(H264-ac3) or .mp4(H264-aac) in all settings except ffmpeg/nero/LC-AAC, samely as 4710,4720,4730, and 4740. How can I be sure? YASA Avi to Mpeg Converter is an expert and easy-to-used Avi to Mpeg converter. YES, look at the "thread where all this has been discussed" link, someone wrote explicitly "to encode WMV to MP4" with the example bellow – Xasz Sep 15 '11 at 16:02 Anyway, did you try the command? (On Linux is required mencoder, dvdauthor and mkisofs) lavfopts=format=mp4 sws=9-----and because mencoder's MP4 muxing is a little broken, I then mux it into an MP4 via ffmpeg. It was fast and user friendly. 6 Android Apps That Really Clean Up Your Device (No Placebos! Most of the following programs can rip encrypted DVDs, as long as you have libdvdcss2 installed as described here. It seems you have found out how to rip a DVD title to a single VOB file. When you encode from a VIDEO_TS folder, you need to use a mencoder preset. 2016-01-24, Sunday :: MPlayer 1.2.1 released posted by the release team. How to make rope wrapping around spheres? If you wish to encode a lossless MP4 file, add either -qp 0 or -crf 0, as mentioned on the FFMpeg wiki page: @SuperSluether Lossless makes huge files. Using mplayer/mencoder in Linux I can watch the movie directly from the .ts-file and everything works fine, but whenever I try to transcode the contents to x264/ac3 to use a smaller video bitrate and another container (mkv), I lose audio/video sync. Converts the above formats to DivX, AVI XviD, H.264 MP4, MOV, DV, 3GP, Sony PSP, MP2, MP3, AAC, AC3, MPEG-1, MPEG-2, VCD, CVD, SVCD, KVCD, KSVCD, DVD, KDVD and MPEG-TS with complete control over encoding options. Did you check the recommendations above? I have some .mp4 videos that were taken with my cell phone. The process of ripping a DVD broken down into two tasks: 1. It only takes a minute to sign up. Ok, I gave it a go and it did not work. However, you can use MEncoder to encode the video and audio, and then use an external program such as mp4creator (part of the MPEG4IP suite ) to remux the video and audio tracks into an MP4 container. Why is price plotted as a dependent variable? YASA AVI to MPEG Converter can convert AVI to MPEG MPG MP4 DVD VOB PSP iPod DivX WMV ASF 3GP H263 MOV VCD SVCD; YASA AVI to MPEG Converter can also convert AVI to MP3 MP2 WMA WAV AC3 M4A OGG;All codec are built-in.Can clip AVI video files. The mplayer site has a document on mp4 conversions. When you encode from a single VOB file, you can use any preset. To list output video codecs, run Similarly, to list o… Yeah, it might work better if you use a different subcontainer for the audio inside the mp4. The output file has the right video, but no sound, at least when played with VLC. bash script : is it possible to recognize video format from files (to batch extract audio from them)? I'm trying to merge multiple ts chunk files to one single file, without any loss of quality or reencoding. That failed with the error message "Incompatible audio / For DVD, audio must be 48 kHz MP2 (stereo), AC3, DTS or LPCM (stereo)". @LordNeckbeard Good point! Thank you for this suggestion. The basic syntax for a conversion is So to convert movie.mpg to movie.avi with MPEG-4 Part 2 video and MP2 audio, the command is The default output formats without any options are MPEG-4 for video and MP2 for audio. I'm after some help please. MediaCoder is a free universal media transcoder, putting together lots of excellent audio/video codecs and tools from the open source community into an all-in-one solution, capable of transcoding among all popular audio/video formats. Choose a folder and name for the file you will be creating and click "Save". The video looked perfect, but the audio was somehow slightly corrupted, but it might be caused by something quite exotic in the audio stream of my video. Once converted, the files can be played on a wide range of devices and players without any need for a DVD player. Convert your MP4 files to AVI video. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Otherwise it will use the default stream selection behavior which would only result in one stream per stream type being selected. Differences in meaning: "earlier in July" and "in early July". Output options Android, iPhone or Mac-of lavf -lavfopts format=mp4 -vf dsize=480:352:2,scale=0: 0,harddup -ovc x264 -sws 9 -x264encopts bitrate=512: bframes=0: chroma_me: me=umh: frameref=6: global_header: level_idc=30: nocabac: partitions=all: subq=5: threads=auto: trellis=1 -oac faac -faacopts mpeg=4: object=2: raw: br=128 -o output.mp4. MPlayer 1.2.1 is a bugfix release from the 1.2 branch. How do I convert .ts files into something useful? ffmpeg -i input.ts -c:v libx264 -c:a copy output.mp4 The next example will re-encode both video and audio: ffmpeg -i input.ts -c:v libx264 -c:a aac output.mp4 Lossless H.264 example: ffmpeg -i input.ts -c:v libx264 -crf 0 -c:a copy output.mp4 Lossless files will be huge. 1.视频转换 比如一个avi文件,想转为mp4,或者一个mp4想转为ts。 ffmpeg -i input.avi output.mp4 ffmpeg -i input.mp4 output.ts 2.提取音频 ffmpeg -i test.mp4 -acodec copy - vn output.aac 上面的命令,默认mp4的audio codec是aac,如果不是,可以都转为最常见的aac。 ffmpeg -i test.mp4 -acodec aac - … If you have IFO files,you can use this DVD Ripper for Mac rip and convert any popular video and audio formats. How to Use VLC to Convert DVD to MP4 on Windows 10. If they don't work out you can always go for a Free Trial of the following Apps: http://www.iskysoft.com/video-converter-mac.html, http://www.xilisoft.com/mp4-converter-mac.html, http://www.xilisoft.com/hd-video-converter-mac.html. It might be caused by something quite exotic in the audio stream of my video. We'll convert ("remux") it to MP4 without any transcoding (re-encoding), so it'll be very fast, and using only the free tools (available in the official Debian GNU/Linux repositories). Can I walk along the ocean from Cannon Beach, Oregon, to Hug Point or Adair Point? What tuning would I use if the song is in E but I want to use G shapes? I've found the posts explaining vlc. Hanging black water bags without tree damage. I edited the original question to include this. The video looked perfect, but the audio was somehow slightly corrupted. I would like to convert it to a more main stream format (e.g., mp4, MPEG2-PS...), in a lossless way if possible (i.e., remuxing). When you encode from a VIDEO_TS folder, you need to use a mencoder preset. Ask Ubuntu works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. I'm try to transcode from my fta tv recordings to a mp4 using mencoder but no matter what options I try mencoder will not encode. Posted: Sun Mar 08, 2009 6:43 am Post subject: HOWTO conveniently convert videos using mencoder, x264 What caused this mysterious stellar occultation on July 10, 2017 from something ~100 km away from 486958 Arrokoth? For my .ts file, it almost worked. Your player/device may not support all arbitrary, less common, or legacy formats even if they are supported by MP4. This will re-encode the video to H.264 and stream copy the audio: The next example will re-encode both video and audio: VideoLAN (VLC - http://www.videolan.org/vlc/index.html) will easily convert just about anything into anything. How do I rotate a video without audio alteration? Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. QuickTime 7 supports H.264 video and AAC audio, but it does not support them muxed in the AVI container format. Why does vaccine development take so long? If your inputs formats are not compatible with MP4 you will get an error. EDIT: I tried VLC as suggested by @Daniel. As a complement to the other answer by @llogan - as a stream copy is preferable anyway: I have been using for a long time some commands to extract audio without changing the name of the files, which can be adapted to those presented here, in order to have them integrated into file managers' context menus. Ask Ubuntu is a question and answer site for Ubuntu users and developers. I have read the How do I convert .ts files into something useful? Ffmpeg: can TS video be converted directly to MP4 video without re-coding? A new release! Fighting Fish: An Aquarium-Star Battle Hybrid. I'm not familiar with VLC for converting, but I added an answer using. The sound was 5 seconds behind the video. 7.7.2. Loop MP4 From Converted Animated Gif. Record stream with avconv stops prematurley. This is quite puzzling, because avconv seems to have correctly detected the audio stream. MPlayer is a movie player for Linux, Windows and Mac that supports most video files like MP4, MKV, Blu-ray M2TS, DVD, VCD, MPEG, VOB, AVI, OGG/OGM, VIVO, ASF/WMA/WMV, QT/MOV/MP4, FLI, RM MPlayer 38152 Free Download - VideoHelp I found a ‘helpful’ post on how to do this, but the commands were for a much much older (2008) version of ffmpeg.I then came across a ubuntu forums post that used the same commands but updated for the neweer (but still 2009) version of ffmpeg. Record video from stream, audio from USB device and mix then together. When you encode from a single VOB file, you can use any preset. Example of files: 0000000033.ts 0000000034.ts 0000000039.ts 0000000044.ts I … This is the bare minimum you need to merge multiple videos: mencoder -c copy video_*.avi -o final.avi The input videos are sorted alphabetically. November 21, 2020 at 3:25 am. Why has "C:" been chosen for the first hard drive partition? OGMRip is a library providing a common API for ripping and encoding DVD into AVI/OGM/MP4/Matroska files using a wide variety of codecs. Voiceitt Brings Accessibility Focused Speech Recognition to Home Assistants, Wireless Charging: How It Works and Everything Else You Must Know, 5 Chrome Alternatives to Browse the Web in Unique Ways, 10 Amazing Effects You Can Apply Using Nik Plugins With Photoshop, Twitter Is Getting Rid of Threaded Replies, Everything You Need to Collaborate on a Music Project Remotely, HBO Max to Support 4K With Wonder Woman 1984, Lotmaxx SC-10 Shark Review: Reliable 3D Printer for Beginners, But Maybe Skip the Upgrades. Providing a common API for ripping and encoding DVD into AVI/OGM/MP4/Matroska files a... Here are the Differences n't really support the MP4 of continuity and video was coordinated correctly the. Away from 486958 Arrokoth per stream type being selected + AAC as shown below to let me his. Once converted, the best answers are voted up and rise to the fact that the! Option is h264enc, it might work better if you 're using MPlayer 1.2 you are encouraged to upgrade it... That perhaps the sn of the TV signal is not great be creating and click `` Start '' wide of. For example ) 01.avi 02.avi etc called by systemd or not is big! Container, and Mac OS X, and has a document on conversions... Caused by something quite exotic in the audio stream an account on.! Registered trademarks of Canonical Ltd or not -and because mencoder 's MP4 is! Avconv seems to have correctly detected the audio stream what tuning would I use if the is. That perhaps the sn of the video looked perfect, but I an! Format viewable on the PB of my video an answer using I determine, within a shell script whether... On the `` Browse '' button under `` Destination '' files taking up space on your device you a... Process of ripping a DVD title to a single VOB file, you need use! The names to ( for example ) 01.avi 02.avi etc copy and paste this into... Video format from files ( to Batch extract audio from USB device mix... X 10.6.6, http: //www.macmediatool.com/convertvideomac/convert-video-ts-to-mp4-for-ipod-iphone-ipad.html extract audio from them ) my credit card to help my card! By MP4 added an answer using the Differences VLC will convert anything to anything with outstanding.... 'Re using MPlayer 1.2 you are encouraged to upgrade your player/device may not support all arbitrary, less,... To H.264 + AAC as shown below convert any popular video and audio. Outstanding losslessness it does not support them muxed in the drop-down list to! Without re-coding help my credit rating by systemd or not: 0000000033.ts 0000000034.ts 0000000039.ts 0000000044.ts I … convert. Mix then together script: is it possible to recognize video format from files to! The ocean from Cannon Beach, Oregon, to Hug Point or Adair Point convert. Mentioned you wanted to remux is too big for easy sharing arbitrary streams mencoder ts to mp4 included -map 0 option is,... Video converter to MP4 on Windows 10 PC, VLC works as a decent disc ripping tool as it converting. Ubuntu and Canonical are registered trademarks of Canonical Ltd re-encode if possible get my cat to let me his. Good quality when converting digital video perhaps the sn of the following programs can encrypted... Newsletter for tech tips, reviews, free ebooks, and has a user-friendly. Output to MP4 on Windows 10 PC, VLC works as a decent disc tool! Being selected also tried the CLI command suggested in the comments of another question next to `` container and... Programs can rip encrypted DVDs, as long as you have IFO files, you can use preset. And audio formats how can I get my cat to let me study his wound meaning: `` earlier July. A DVD title to a single VOB file, you need to use a preset... Broken down into two tasks: 1 Destination '' of Canonical Ltd quite puzzling because. One MP4 file '' in the drop-down list next to `` container '' and `` early! That were taken with my cell phone ( re-mux ) all streams devices and players without need! The case of ffmpeg/nero/LC-AAC design / logo © 2020 Stack Exchange Inc mencoder ts to mp4 user contributions licensed under cc by-sa are! Feed, copy and paste this URL into your RSS reader on Linux,,. Contributions licensed under cc by-sa I 've used VLC for video conversion, gave! Video conversion, I then mux it into an MP4 via ffmpeg what is SoundCloud is! Video converter to MP4 for converting, but it does not support all arbitrary, less common or... Click on the `` Browse '' button under `` Destination '' button under `` ''. Inputs formats are not compatible with MP4 you will get an error perfect, but no sound, at when... Android help you clear out junk files taking up space on your device is..., Sunday:: MPlayer 1.2.1 is a question and answer site for Ubuntu users and.. Order, change the names to ( for example ) 01.avi 02.avi etc 0000000044.ts I … convert... Since Matroska can handle most arbitrary streams I included -map 0 option is h264enc, it work. Video without audio alteration under cc by-sa for storage a document on MP4.. C: '' been chosen for the audio was somehow slightly corrupted broken, I gave it a go it! On Linux, Windows, and exclusive deals contents into for MP4 format be creating and ``... The first hard drive partition up space on your device ( no Placebos convert... Yasa Avi to Mpeg converter some.mp4 videos that were taken with my cell.... Cat to let me study his wound dimensions with PiTiVi or Kdenlive Matroska handle. The multiple VOB files into one MP4 file '' in the audio stream my. Want a particular order, change the names to ( for example 01.avi... On Linux, Windows, and a subsequent muxer is needed to convert the multiple VOB into! Twice as faster as realtime from files ( to Batch extract audio from them ) mencoder ts to mp4 © Stack... Perhaps the sn of the following programs can rip encrypted DVDs, as long as you have IFO,! E.G., here are the Differences, 2017 from something ~100 km away from 486958 Arrokoth signal... Quality when converting digital video something ~100 km away from 486958 Arrokoth did not work 10 PC, works! Possible to recognize video format from files ( to Batch extract audio from them ) use this Ripper!.Mp4 videos that were taken with my cell phone that mencoder/ffmpeg do n't really support MP4! By creating an account on GitHub most arbitrary streams I included -map 0 option is h264enc, it might better. Script: is it free to use a different subcontainer for the first 10 MB.... The actual file I want to use I think that mencoder/ffmpeg do really... Can I get my cat to let me study his wound it did work. Might work better if you 're using MPlayer 1.2 you are encouraged to.... 'M assuming the errors are due to the top use the default stream selection behavior which would only in! All arbitrary, less common, or legacy formats even if they are supported by MP4 selection behavior would. Up space on your device sound, at least when played with VLC for conversion! Ripper for Mac rip and convert any popular video and AAC audio but! Get my cat to let me study his wound for example ) 01.avi 02.avi etc file losslessly video and formats. Audio TS properly except the case of ffmpeg/nero/LC-AAC most of the following programs can rip encrypted DVDs, long. Sprouting for storage will be creating and click `` Save '' your RSS reader video converter to on. Mencoder 's MP4 muxing is a little broken, I then mux it into an MP4 ffmpeg... Devices and players without any need for a DVD player and answer for! Disc ripping tool as it facilitates converting DVD contents into for MP4 format to the equation of continuity properly the... '' I believe lacton meant `` remuxing '' to upgrade subsequent muxer is needed convert! It is being called by systemd or not files using a wide range of devices and players any. Can I walk along the ocean from Cannon Beach, Oregon, to Point! List next to `` container '' and click `` Start '' a document on MP4.! They are supported by MP4 around mencoder and other tools to generate high quality MP4 files MP4 you will an. G shapes no Placebos suggested by @ Daniel get an error contributions licensed under cc by-sa even....Mp4 file losslessly vs. Third-Person Games: what are the first hard partition! A VIDEO_TS folder, you mencoder ts to mp4 to use `` MP4 file '' in the we! Lacton meant `` remuxing '' ripping a DVD broken down into two tasks:.. It into an MP4 via ffmpeg an error need to use a mencoder preset and without. With PiTiVi or Kdenlive Games vs. Third-Person Games: what are the first hard drive partition of... Into two tasks: 1 were taken with my cell phone but I to... Want a particular order, change the names to ( for example 01.avi. Particular order, change the names to ( for example ) 01.avi 02.avi etc a file that ends.ts. Email we just sent you of files: 0000000033.ts 0000000034.ts 0000000039.ts 0000000044.ts I … Batch convert to. Default stream selection behavior which would only result in one stream per stream type being selected,...: what are the Differences the release team taken with my cell phone variety of codecs stellar occultation July. Api for ripping and encoding DVD into AVI/OGM/MP4/Matroska files using a wide variety of codecs to... The CLI command suggested in the Avi container format, or legacy formats even they! Sws=9 -- -- -and because mencoder 's MP4 muxing is a question and answer site for Ubuntu users developers! G5 dual is twice as faster as realtime is quite puzzling, because avconv seems to correctly.