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• Converting a video file in arbitrary file format into MPEG4/H.264?

  - by knorv

  I want to convert a large number of video files in various formats into .mp4 files (container MPEG-4, codec H.264). I want to do this on an Ubuntu machine, using only command-line tools and I'm willing to install packages from main, restricted, universe and multiverse. Ideally I'd like to be able to do ... for VIDEO_FILE in *; do some_conversion_program $VIDEO_FILE $VIDEO_FILE.mp4 done ... and have all my video files in .mp4 format with container MPEG-4 and codec H.264. How would you tackle this problem on an Ubuntu machine? What packages do I need to install?

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• Firefox va supporter le H.264 dans sa version mobile après avoir bataillé contre ce codec propriétaire : pragmatisme ou renoncement ?

  Firefox supporte le H.264 après avoir longtemps bataillé contre ce codec propriétaire : pragmatisme ou renoncement ? Le codec H.264 a longtemps fait débat divisant les navigateurs en deux clans. Mozilla s'était rangé dans le camp contre ce codec, refusant catégoriquement d'obtenir une licence propriétaire pour son Firefox. La fondation militait depuis le début pour un web ouvert à 100%. Mais voila que sur le groupe de discussions de ses développeurs, Andreas Gal, Directeur de la recherche de Mozilla, annonce un virage. Du moins en ce qui concerne la future plateforme mobile de la fondation à but non lucratif. [IMG]http://ftp-developpez.com/sarah-mendes/logo_...

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• La beta de Moonlight 4 se rapproche de Silverlight 4, l'implémentation open-source ajoute accélération matérielle et support du H.264

  La beta de Moonlight 4 se rapproche de Silverlight 4 Son implémentation open-source propose désormais accélération matérielle et support du H.264 Moonlight 4 vient de sortir en version beta. L'implémentation open-source de Silverlight propose à présent l'accélération matérielle (pour la prise en charge des vidéos et de la 3D par le GPU) ou le support du codec H.264. Avec cette version de développement, Moonlight intègre plusieurs nouveautés de Silverlight 4, notamment la prise en charge des APIs de Silverlight 3 et 4. Elle permet également de construire et de faire tourner des applications « hors du navigateur ». Néanmoins, cette beta ne propose pas toutes les foncti...

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• Firefox va supporter le H.264 dans sa version mobile après avoir bataillé contre ce codec propriétaires : pragmatisme ou renoncement ?

  Firefox supporte le H.264 après avoir longtemps bataillé contre ce codec propriétaires : pragmatisme ou renoncement ? Le codec H.264 a longtemps fait débat divisant les navigateurs en deux clans. Mozilla s'était rangé dans le camp contre ce codec, refusant catégoriquement d'obtenir une licence propriétaire pour son Firefox. La fondation militait depuis le début pour un web ouvert à 100%. Mais voila que sur le groupe de discussions de ses développeurs, Andreas Gal, Directeur de la recherche de Mozilla, annonce un virage. Du moins en ce qui concerne la future plateforme mobile de la fondation à but non lucratif. [IMG]http://ftp-developpez.com/sarah-mendes/logo...

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• Firefox adopte le H.264 après avoir longtemps bataillé contre ce codec propriétaires : pragmatisme ou renoncement ?

  Firefox adopte le H.264 après avoir longtemps bataillé contre ce codec propriétaires : pragmatisme ou renoncement ? Le codec H.264 a longtemps fait débat divisant les navigateurs en deux clans. Mozilla s'était rangé dans le camp contre ce codec, refusant catégoriquement d'obtenir une licence propriétaire pour son Firefox. La fondation militait depuis le début pour un web ouvert à 100%. Mais voila que sur le groupe de discussions de ses développeurs, Andreas Gal, Directeur de la recherche de Mozilla, annonce un revirement de situation total. Du moins en ce qui concerne la future plateforme mobile de la fondation à but non lucratif. [IMG]http://ftp-developpez....

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• Streaming encoded video in Adobe AIR Application

  - by RIA Developer

  Hi, I am developing a desktop application in Adobe AIR that will be used to stream the user's camera video to a wowza media server. I want to encode the video on the fly, means transmit the H.264 encoded video instead of the default flash player encoded video for quality purpose. Is there any way around for this? Waiting for the help from people around, Rick

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• HLS video segmenting complications. How to create a transport stream with ffmpeg

  - by Agzam

  I have h264 videos, and currently we're using Apple's HTTP Video Streaming tools and mediafilesegmenter to segment these files. What I need to do is to switch to alternative segmenter based on this very popular open-sourced segmenter The problem is that this segmenter does not just take any video, but takes only MPEG-TS videos. So I have to convert my h264 videos to TS first. I can do that with ffmpeg. I'm using this: ffmpeg -i encoded.mp4 -vcodec h264 -i encoded.mp4 -sameq -acodec aac -strict experimental -f mpegts output.ts But this creates fairly larger output. And the reason is that Apple's segmenter keeps the same codec - AVC and the same audio codec - AAC, whereas ffmpeg changes video format to MPEG Video. The question is: can I somehow keep the same AVC video codec and still convert video to a transport stream? So my goal is to keep the same video quality and same video codecs as Apple's medifilesegmenter does. UPD: Okay... it seems that ffmpeg CAN split videos into segments: ffmpeg -i encoded.mp4 -c copy -map 0 -vbsf h264_mp4toannexb -f segment -segment_time 10 -segment_list test.m3u8 -segment_format mpegts segment%d.ts That's still has one problem: it doesn't create http live streaming index file. (-segment_list creates a file with list of segments, but it doesn't look like HLS index). So, you still have to create index file

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• FFMPEG: how to add watermark to video?

  - by DocWiki

  My Platform: Ubuntu 10.10 + FFMPEG 0.5.3(I installed ffmpeg from source) I try to add Watermark to a .MOV video with FFMPEG 0.5.3 imlib2.so (Please note FFMPEG 0.6+ dont support imlib2.so, so I use ffmpeg 0.5.3) Here is my code: ffmpeg -sameq -i example.mov -vhook '/usr/local/lib/vhook/imlib2.so -x 0 -y 0 -i /var/www/files/watermark.png' newexample.mov Here is the output: FFmpeg version 0.5.3, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --enable-avfilter --enable-filter=movie --enable-avfilter-lavf libavutil 49.15. 0 / 49.15. 0 libavcodec 52.20. 1 / 52.20. 1 libavformat 52.31. 0 / 52.31. 0 libavdevice 52. 1. 0 / 52. 1. 0 libavfilter 0. 4. 0 / 0. 4. 0 built on Jul 3 2011 12:05:08, gcc: 4.4.5 Seems stream 1 codec frame rate differs from container frame rate: 59.94 (5994/100) - 29.97 (30000/1001) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'example.mov': Duration: 00:03:14.06, start: 0.000000, bitrate: 3350 kb/s Stream #0.0(eng): Audio: aac, 48000 Hz, stereo, s16 Stream #0.1(eng): Video: h264, yuv420p, 1150x647, 29.97 tbr, 29.97 tbn, 59.94 tbc Output #0, mov, to 'newexample.mov': Stream #0.0(eng): Video: mpeg4, yuv420p, 1150x647, q=2-31, 200 kb/s, 90k tbn, 29.97 tbc Stream #0.1(eng): Audio: 0x0000, 48000 Hz, stereo, s16, 64 kb/s Stream mapping: Stream #0.1 - #0.0 Stream #0.0 - #0.1 Unsupported codec for output stream #0.1 What could be the possible problem? Is that AAC or H264 that is not supported? I installed libavcodec-extra-52, linfaac, libfaad and etc. but the error is the same. Do I have to install following this instruction? HOWTO: Install and use the latest FFmpeg and x264 or there is a simpler solution?

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• video streaming infrastructure advice

  - by Alchemical

  We would like to set-up a live video-chat web site and are looking for basic recomendations for software and hardware set-up. Most streams will be broadcast live from a single person with a web cam, etc., and viewed by typically 1-10 people, although there could be up to 100+ viewers on the high side. Audio and video do not have to be super-high quality, but do need to be "good enough". The main point is to convey the basic info in the video (and audio). If occasionally the frame-rate drops low and then goes back to normal fairly soon, we could live with that. Budget is an issue, so we are in general looking for a lower cost solution that will give us most of what we need in temers of performance and quality. We are looking at Peer1 for co-lo. The rest of our web site will be .Net / Windows platform. We are open to looking at any platform for the best streaming solution, although our technical expertise is currently more on the Windows side.

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• Streaming Flash Video - getting my feet wet

  - by Travis

  I'm working on a project that will involve having a couple thousand short videos online. I haven't done anything with online video before and this is all a bit new to me, so I am looking for some general advice... I would like to use Flowplayer, and I would like to encode the videos as H264s. I am enamoured with Flowplayer's slow motion feature, which if I understand correctly, is only available using a Wowza server. I'm wondering: Is it advisable to use a delivery network of some sort? (Flowplayer seems to have a partnership with HDDN, and recommends them. http://www.hddn.com/) Or would I be better off purchasing Wowza and installing it on our own server? (At first glance, it looks as though signing up with a network like HDDN is much simpler, but perhaps there are problems that come along with this...?) Any tips / warnings of imminent peril would be much appreciated. Thanks in advance.

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• Encoding movie files into h264

  - by Shiki

  Found some topics about archiving into h264, but those were about the generic questions (does it worth it, which codec to use.) I want to use h264 (with CUDA (if possible)). So far I only found Avidemux a usable encoder with x264 but it makes an unwatchable video file after the encoding (using the best profile, all setting maxed out), really blurry. Please write down detailed what to use, where to get it (if its free, doesnt matter), what to set, etc. Thanks in advance. (OS: Windows 7 ulti x64, VGA is VP2 capable with CUDA GTX260 XFX) Of course, if there is an up to date duplicate, just comment with the link and I'll remove the question ASAP.

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• The specified module (mod_h264_streaming) could not be found (Apache2)?

  - by rphello101

  I'm trying to get the mod_h264_streaming to work with my Apache2 server. I downloaded a precompiled version of the mod from here. I read here that all I have to do is extract the file to my modules folder, which I did, and add LoadModule h264_streaming_module modules/mod_h264_streaming.so AddHandler h264-streaming.extensions .mp4 to the httpd.conf, which I also did. However, I get this error when I restart Apache: Syntax error on line 173 of C:/Program Files (x86)/Apache Group/Apache2/conf/httpd.conf: Cannot load C:/Program Files (x86)/Apache Group/Apache2/modules/mod_h264_streaming.so into server: The specified module could not be found. Note the errors or messages above, and press the <ESC> key to exit. 26... Even though the file exists right here: C:\Program Files (x86)\Apache Group\Apache2\modules\mod_h264_streaming.so Can anyone tell me what I'm doing wrong?

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• mix audio with h264 mp4 video with ffmpeg

  - by user2362912

  I have 2 files : Input #0, wav, from '105426_1.wav': Duration: 00:00:09.98, bitrate: 1312 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 41000 Hz, stereo, s16, 1312 kb/s and: Duration: 00:00:41.29, start: 0.000000, bitrate: 1313 kb/s Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1211 kb/s, 24.42 fps, 25 tbr, 90k tbn, 48 tbc Metadata: handler_name : VideoHandler Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 99 kb/s Metadata: handler_name : SoundHandler I want to insert first audio file into video in special place (for example in 10 secunde of video) and mix it with audio stream of video file. I try to /usr/local/bin/ffmpeg -i 105426_1.wav -i 105426.mp4 -map 0:0 -map 1:1 -map 1:0 video_finale.mp4 but result is : Duration: 00:00:41.31, start: 0.046440, bitrate: 755 kb/s Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s Metadata: handler_name : SoundHandler Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s Metadata: handler_name : SoundHandler Stream #0:2(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 588 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc Metadata: handler_name : VideoHandler I need only one audio stream and first stream play not from beginig but from 10 sec

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• How to convert a mpeg4-aac video to mpeg-ts using MEncoder?

  - by Mahendra Liya

  Hello, I know this can be done using FFMpeg and I have done it. The only problem here was that FFMpeg actually tries to "encode" the file while converting to mpeg-ts which I don't want. i.e. I just want to change the container format to mpeg-ts without encoding the media. Is this type of conversion possible with FFMpeg? (I know about "copy" option, but it works with H264-aac and not with mpeg4-aac). Is it possible to change mpeg4-aac to mpeg-ts container format with MEncoder? I wish to know the personal opinion/advice of those who have already worked on such stuff. Thanks in advance.

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• Is there any way to distribute x264 encoding jobs across multiple computers (to increase the encoding speed)?

  - by Breakthrough

  Does anyone know of a current, active solution to encoding x264 videos across many computers (via the network) to increase encoding FPS? Brownie points for cross-platform and open source, but just so you all know, I usually use Windows. Programs that I have heard of, and why I do not believe they are suitable: x264farm: Not actively developed. Good interface, but does not support two-pass encoding, and fails with newer x264 builds. ELDER: Again, not actively developed, but my issue was that it didn't work with new x264 builds, and it was very difficult to configure (read: randomly stopped working). While I don't absolutely need a program which is being actively developed, I would like one that supports two-pass encoding, and works with new(er) x264 builds. Additional information: So far, I've offered (and awarded!) two separate bounties on this question since I first posted it over two years ago, and I still haven't found a solution to this problem. What I'm looking for basically is a simple program to allow me to encode x264 videos using the processing power of multiple computers connected over a LAN. Furthermore, it would be nice if it worked with new(er) x264 builds, and supported two-pass encoding. If at any time someone has an updated answer, or a new solution to this problem, please post it and it will be given some consideration.

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• How do I edit MP4/H264 video files in Sony Vegas Platinum 6?

  - by billpg

  If I try to open an MP4 file made by a Sony Webbie in Sony Vegas Platinum 6, it won't open. (Something made me think they would work together.) The Webbie files are H264. It will happily play MP4/H263. Is there a codec or something I can download?

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• Joining H264 *without* re-encoding

  - by jdmuys

  I have two halves of a single show in two .MP4 files, encoded in H264. I would like to join them without re-encoding. Is this possible? I managed to create a joined video as a Quicktime file (.mov) using Quicktime Pro, but then Quicktime Pro will not convert it back to .MP4 without re-encoding. This may be because looking inside the .mov file, the two H264 videos are in there still separated as individual "objects". I am also struggling with MPEG StreamClip without reaching a real solution. But I may have missed something. Note that I do not have the same issue with MPEG2 files. I can export them to a .MPEG container or a .TS file for example, and then I can join them without re-encoding using MPEG Streamclip. Any suggestion welcome, preferably using Mac software.

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• How to batch convert video files on OSX for AppleTV2 / iPhone4?

  - by Luke404

  I'd like to have a solution to batch convert video files to a format suitable for the AppleTV2, iPad2, iPhone4, while at the same time preserving as much quality as possible; I want a single output file that will play on both devices and also good for consumption by other Mac software (eg. Aperture, iMovie, iTunes). Batch processing is a requirement since I'm gonna convert many many files from different sources (mainly lots of videos captured by compact digital cameras, cell phones, and so on). I'm looking into ffmpeg and MEncoder (both installed via MacPorts), but I can't seem to find a suitable preset for libx264 even if everyone out there is talking about them. A different approach involving different software would be ok too as long as I can script it somehow and run it on a whole directory full of files to be converted.

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• Converting or playing a .264 video file?

  - by Dan

  I recently bought a Chinese brand DVR (to record security cams). The DVR exports the video files with a ".264" extension. This is my first time ever dealing with this video format. Anyhow I've been trying to convert the videos to any other format so it will be easier to watch the videos. The problem is that I could only find one program that can convert and play those files which is Elecard studio something, and even that Elecard studio thing is having trouble with these files, some of them are just making it crash so I can't convert them. I've tried to find some other programs but I couldn't find anything that can actually play those files. How can I play or convert these files to another format?

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• flash h264 mp4 playback pixelation

  - by ndmweb

  Working with converting/playing h264 mp4 videos in flash. I'm converting the video from various source file formats (mostly .mov & .mp4), to h264 mp4 using ffmpeg server side. All seems to be working just fine, except I'm getting a few reports of pixelation of the video when being viewed on windows machines. I've testing just about every browser I can think of on (XP/Vista/7) and could not reproduce. Here's a screenshot: http://i.imgur.com/IK5RV.jpg (sorry for the resolution, was in an email from the client, as I'm unable to reproduce.) Anyone else ever run into this issue? At this point it could be anything in my mind. It seems like an odd bug, and probably a codec issue, or somehow a 32/64-bit issue?

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• Local Live Quicktime Video Broadcast, latency?

  - by Snowwire

  I'm looking into the feasibility of using a local server to distribute live video of a conference to delegates in the same room. They would still hear the live audio coming from the speaker, so only the video would be streamed. I was considering a Darwin Steaming Server (a lot of iPhone users to support) and encoding with H.264. My main concern is latency across the network. Even with everything running locally, would there be lip sync issues between the live audio and the 'live' video stream? It feels like there will be problems given the encoding, broadcasting, decoding to be completed, but I've never done any like this before so thought I would check. Thanks

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• Internet Explorer 9 ne soutiendra que le H.264 : vers un nouveau coup dur pour Flash ?

  Mise à jour du 30/04/10 Internet Explorer 9 ne supportera que le H.264 Vers un nouveau coup dur pour Flash ? Microsoft vient de réitérer son implication dans la future norme du HTML 5. « Le futur du Web c'est le HTML5 », a même écrit hier sur son blog le General Manager d'Internet Explorer, qui explique que « la spécification HTML 5 permet de décrire le support d'une vidéo sans spécifier un format particulier ». Jusqu'ici, rien de très nouveau, même si cette implication pose la question de son articulation avec Silverlight, le concurrent maison de Flash (lire par ailleurs :

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• video streaming infrastructure

  - by alchemical

  We would like to set-up a live video-chat web site and are looking for basic architectural advice and/or a recomendation for a particular framework to use. Here are the basic features of the site: Most streams will be broadcast live from a single person with a web cam, etc., and viewed by typically 1-10 people, although there could be up to 100+ viewers on the high side. Audio and video do not have to be super-high quality, but do need to be "good enough". The main point is to convey the basic info in the video (and audio). If occasionally the frame-rate drops low and then goes back to normal fairly soon, we could live with that. Budget is an issue, so we are in general looking for a lower cost solution that will give us most of what we need in temers of performance and quality. We are looking at Peer1 for co-lo. The rest of our web site will be .Net / Windows platform. We are open to looking at any platform for the best streaming solution, although our technical expertise is currently more on the Windows side.

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• remuxing mpv files from h264 AVI files

  - by crankharder

  I have a bunch of, I think, x264 encoded AVIs that I'd like to convert to m4v so that I can play with Quicktime. Here's how I created them First I dump the vob from DVD with this: $ mplayer -dumpstream -dumpfile new.vob dvd://1 Then I compress it: $ mencoder -oac copy -o new.avi -ovc x264 -x264encopts crf=18 new.vob I tried doing this to convertthem to m4v, but it's blowing up... I tried dumping the h264/acc streams: $ mplayer new.avi -dumpvideo -dumpfile new.h264 $ mplayer new.avi -dumpaudio -dumpfile new.acc And remuxing(?) with MP4Box but I'm getting an error: $ MP4Box -add new.h264#video -add new.aac#audio new.m4v Cannot find H264 start code Error importing new.h264#video: BitStream Not Compliant So not sure what to do now...

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• libav/ffmpeg: avcodec_decode_video2() returns -1 when separating demultiplexing and decoding

  - by unbekannt

  I'm using libav (from a C++ program on Linux and Windows) to decode video streams from a file, which works fine (decoding various formats like H264 and MPEG2) using avformat_open_input(), av_read_frame() and avcodec_decode_video2(). Now I have to separate demultiplexing and decoding. One class will call avformat_open_input() and av_read_frame() and then pass the AVPackets into a queue that is read by another class. There I use avcodec_alloc_context3() to get the AVCodecContext needed for avcodec_decode_video2(). I've tested that with a MPEG2 video stream and it works. Problems arise if I try to decode a H264 stream: avcodec_decode_video2() always returns -1 and outputs "no frame". I understand that additional data (SPS/PPS) is needed to decode this stream, so I've tried to replicate the original AVCodecContext from the demultiplexer in the decoder, but it won't work: Copying the content of the extradata field and setting all other values that differ from the default ones in the decoder: -1 is returned Using the same context (i.e. passing along the pointer) results in a crash I also tried to set CODEC_FLAG2_CHUNKS. avcodec_decode_video2() then always returns packet.size - 3 (??) and frameFinished is never set to 1. In my opinion I have a general problem here that will arise whenever settings from the original CodecContext are needed to decode the AVPackets. I'd be grateful for any hints on how to solve that problem!

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