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  • ffmpeg encoding on QuadCore

    - by Gotys
    I am trying to push my server's CPU cores to the max, but no success. Encoding 2-pass style, set my "-threads" to 128 . When running 2nd pass , the CPU seems to be at 98% usage, but first pass run totally ignores "-threads" option. Using libx264 . Here is my preset: flags=+loop+mv4 cmp=256 partitions=+parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 me_method=hex subq=7 trellis=1 refs=5 bf=3 flags2=+bpyramid+wpred+mixed_refs+dct8x8 coder=1 me_range=16 g=250 keyint_min=25 sc_threshold=40 i_qfactor=0.71 qmin=10 qmax=51 qdiff=4 Is there any reason why the 1st pass is not utilizing my CPUs ? Thank you in advance! This community has always been very kind to me.

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  • ffmpeg encoding on QuadCore

    - by Gotys
    I am trying to push my server's CPU cores to the max, but no success. Encoding 2-pass style, set my "-threads" to 128 . When running 2nd pass , the CPU seems to be at 98% usage, but first pass run totally ignores "-threads" option. Using libx264 . Here is my preset: flags=+loop+mv4 cmp=256 partitions=+parti4x4+parti8x8+partp4x4+partp8x8+partb8x8 me_method=hex subq=7 trellis=1 refs=5 bf=3 flags2=+bpyramid+wpred+mixed_refs+dct8x8 coder=1 me_range=16 g=250 keyint_min=25 sc_threshold=40 i_qfactor=0.71 qmin=10 qmax=51 qdiff=4 Is there any reason why the 1st pass is not utilizing my CPUs ? Thank you in advance! This community has always been very kind to me.

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  • Video encoding is very slow on Amazon EC2 instance

    - by Timka
    We are using Amazon EC2 m1.xlarge instance for video re-encoding and it looks like the actual encoding process takes a very long time. For an average 250mb video file it takes about an hour to encode. Intance: m1.xlarge (Xeon E5645 x 15gb ram) Windows Server 2008 R2 64-bit AviSynth version 2.5 (32bit) + ffms2 plugin (FFmpegSource 1.21) FFmpeg SVN-r13712 libavutil 3213056 libavcodec 3356930 libavformat 3411456 libavdevice 3407872 Number of parallel jobs is 3 Average CPU utilization ~96% Update#1 Source video: mp4/h.264 Parameters for ffmpeg: --enable-memalign-hack --enable-avisynth --enable-libxvid --enable-libx264 + --enable-libgsm --enable-libfaac --enable-libfaad --enable-liba52 + --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-pthreads + --enable-swscale --enable-gpl Video files encoded to mp4/h.264 with the following extra command line options: -threads 0 -coder 0 -bf 0 -refs 1 -level 30 -maxrate 10000000 -bufsize 10000000

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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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  • ffmpeg error while segmenting

    - by Tommy Ng
    I'm using ffmpeg and segmenter on Ubuntu 10.04 to create the transport stream from flv/h264 video files and then segment the ts segments for ipad streaming. Some ts files show an error with segmenter - Output #0, mpegts, to '29': Stream #0.0: Video: 0x0000, yuv420p, 480x360, q=2-31, 90k tbn, 25 tbc Stream #0.1: Audio: 0x0000, 0 channels, s16 [mpegts @ 0x11f4ac0]sample rate not set Could not write mpegts header to first output file my ffmpeg command for creating the ts file - ffmpeg -i 1.flv -f mpegts -acodec libfaac -ar 48000 -ab 64k -s 480x360 -vcodec libx264 -b 192k -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -subq 5 -trellis 1 -refs 1 -coder 0 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -bt 200k -maxrate 192k -bufsize 192k -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 -aspect 480:360 -g 30 -async 2 -y 1.ts my segmenter command - segmenter 1.ts 10 1 1.m3u8 path/to/streams/

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  • creating video from set of images on windows with java language [on hold]

    - by Atif
    I am stuck in making video from set of images, i am using ffmpeg tool on windows platform with java language, for single image it is converting into mp4 but for the set of images it gets failed, i have converted single % to double % with doube quotes but unsuccessful ffmpeg -r 1/5 -i "D:\novoworkspace\MGram\src\biz\novosol\mgram\main\img%%04d.jpg" -c:v libx264 -r 30 -pix_fmt yuv420p D:\novoworkspace\MGram\src\biz\novosol\mgram\main\video.mp4 Above is the exact command i tried from the command line as well from the java language with getRuntime() method. Environment is widows please suggest is it possibe under windows or I have to use some alternative Thanks Atif

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  • Time of splitting and encoding video with ffmpeg increases exponentially

    - by Rnd_d
    I'm trying to split video by subtitles and encode into .mp4(h.264/aac) using ffmpeg, but it takes so much time! First pieces of video are splited and encoded really fast, but for each iteration time increases, and so 40 min video takes all night or more. Small 3 min video takes max 10 mins. cmd for splitting and encoding: ffmpeg -i filename.avi -ss 00:00:0(time of sub start) -t 0:0:3(time of sub duration) -acodec libfaac -vcodec libx264 -bf 0 -f mp4 filename.mp4 ffmpeg version N-34849-g07c7ffc (last, i think) How I can make it faster? Are there, maybe, some magic arguments for ffmpeg or some hacks?

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  • ASP.net FFMPEG video conversion receiving error: "Error number -2 occurred"

    - by Pete
    Hello, I am attempting to integrate FFMPEG into my asp.net website. The process I am trying to complete is to upload a video, check if it is .avi, .mov, or .wmv and then convert this video into an mp4 using x264 so my flash player can play it. I am using an http handler (ashx) file to handle my upload. This is where I am also putting my conversion code. I am not sure if this is the best place to put it, but I wanted to see if i could at least get it working. Additionally, I was able to complete the conversion manually through cmd line. The error -2 comes up when i output the standard error from the process I executed. This is the error i receive: FFmpeg version SVN-r23001, Copyright (c) 2000-2010 the FFmpeg developers built on May 1 2010 06:06:15 with gcc 4.4.2 configuration: --enable-memalign-hack --cross-prefix=i686-mingw32- --cc=ccache-i686-mingw32-gcc --arch=i686 --target-os=mingw32 --enable-runtime-cpudetect --enable-avisynth --enable-gpl --enable-version3 --enable-bzlib --enable-libgsm --enable-libfaad --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libmp3lame --enable-libopenjpeg --enable-libxvid --enable-libschroedinger --enable-libx264 --enable-libopencore_amrwb --enable-libopencore_amrnb libavutil 50.15. 0 / 50.15. 0 libavcodec 52.66. 0 / 52.66. 0 libavformat 52.61. 0 / 52.61. 0 libavdevice 52. 2. 0 / 52. 2. 0 libswscale 0.10. 0 / 0.10. 0 532010_Robotica_720.wmv: Error number -2 occurred here is the code below: <%@ WebHandler Language="VB" Class="upload" %> Imports System Imports System.Web Imports System.IO Imports System.Diagnostics Imports System.Threading Public Class upload : Implements IHttpHandler Public currentTime As System.DateTime Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest currentTime = System.DateTime.Now If (Not context.Request.Files("Filedata") Is Nothing) Then Dim file As HttpPostedFile : file = context.Request.Files("Filedata") Dim targetDirectory As String : targetDirectory = HttpContext.Current.Server.MapPath(context.Request("folder")) Dim targetFilePath As String : targetFilePath = Path.Combine(targetDirectory, currentTime.Month & currentTime.Day & currentTime.Year & "_" & file.FileName) Dim fileNameArray As String() fileNameArray = Split(file.FileName, ".") If (System.IO.File.Exists(targetFilePath)) Then System.IO.File.Delete(targetFilePath) End If file.SaveAs(targetFilePath) Select Case fileNameArray(UBound(fileNameArray)) Case "avi", "mov", "wmv" Dim fileargs As String = fileargs = "-y -i " & currentTime.Month & currentTime.Day & currentTime.Year & "_" & file.FileName & " -ab 96k -vcodec libx264 -vpre normal -level 41 " fileargs += "-crf 25 -bufsize 20000k -maxrate 25000k -g 250 -r 20 -s 900x506 -coder 1 -flags +loop " fileargs += "-cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -subq 7 -me_range 16 -keyint_min 25 " fileargs += "-sc_threshold 40 -i_qfactor 0.71 -rc_eq 'blurCplx^(1-qComp)' -bf 16 -b_strategy 1 -bidir_refine 1 " fileargs += "-refs 6 -deblockalpha 0 -deblockbeta 0 -f mp4 " & currentTime.Month & currentTime.Day & currentTime.Year & "_" & file.FileName & ".mp4" Dim proc As New Diagnostics.Process() proc.StartInfo.FileName "ffmpeg.exe" proc.StartInfo.Arguments = fileargs proc.StartInfo.UseShellExecute = False proc.StartInfo.CreateNoWindow = True proc.StartInfo.RedirectStandardOutput = True proc.StartInfo.RedirectStandardError = True AddHandler proc.OutputDataReceived, AddressOf SaveTextToFile proc.Start() SaveTextToFile2(proc.StandardError.ReadToEnd()) proc.WaitForExit() proc.Close() End Select Catch ex As System.IO.IOException Thread.Sleep(2000) GoTo Conversion Finally context.Response.Write("1") End Try End If End Sub Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable Get Return False End Get End Property Private Shared Sub SaveTextToFile(ByVal sendingProcess As Object, ByVal strData As DataReceivedEventArgs) Dim FullPath As String = "text.txt" Dim Contents As String = "" Dim objReader As StreamWriter objReader = New StreamWriter(FullPath) If Not String.IsNullOrEmpty(strData.Data) Then objReader.Write(Environment.NewLine + strData.Data) End If objReader.Close() End Sub Private Sub SaveTextToFile2(ByVal strData As String) Dim FullPath As String = "texterror.txt" Dim Contents As String = "" Dim objReader As StreamWriter objReader = New StreamWriter(FullPath) objReader.Write(Environment.NewLine + strData) objReader.Close() End Sub End Class

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  • How to compile FFmpeg with x265 support?

    - by Levan
    Today I found out that x265 is already present in ffmpeg so I compiled ffmpeg with this guide Sadly libx265 did not work on ubuntu, however on windows I tried the same thing with zeranoe ffmpeg build and it worked without a problem. So do you think i did something wrong or it is not yet implemented in linux build (using that guide)? The results of the command ffmpeg -codecs | grep -i hevc show: ffmpeg version 2.1.git Copyright (c) 2000-2014 the FFmpeg developers built on Feb 19 2014 19:00:17 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9) configuration: --prefix=/home/levan/ffmpeg_build --extra-cflags=-I/home/levan/ffmpeg_build/include --extra-ldflags=-L/home/levan/ffmpeg_build/lib --bindir=/home/levan/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab libavutil 52. 64.100 / 52. 64.100 libavcodec 55. 52.102 / 55. 52.102 libavformat 55. 33.100 / 55. 33.100 libavdevice 55. 10.100 / 55. 10.100 libavfilter 4. 1.102 / 4. 1.102 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 D.V.L. hevc H.265 / HEVC (High Efficiency Video Coding) Thank you for your time

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  • Recording slow web stream

    - by Budric
    I'm trying to record an mpeg2 video stream from a website that doesn't have the greatest bandwidth. The video often buffers. I want to download the stream and watch it offline. The extract stream format received is: Stream #0.0[0x44]: Audio: mp2, 48000 Hz, stereo, s16, 192 kb/s Stream #0.1[0x45]: Video: mpeg2video (Main), yuv420p, 704x576 [PAR 16:11 DAR 16:9], 15000 kb/s, 27.19 fps, 25 tbr, 90k tbn, 50 tbc I use the following tool to transocde the stream: ffmpeg -i "http://url" -y -vcodec libx264 -b 3000k -acodec copy /tmp/stream.mp4 Unfortunately after a few seconds ffmpeg stops recording with an error [mpegts @ 0x1f0b9c0] PES packet size mismatch [mp2 @ 0x1f14640] incomplete frame Error while decoding stream #0.0 [mpeg2video @ 0x1f16860] ac-tex damaged at 0 26 [mpeg2video @ 0x1f16860] Warning MVs not available I've tried encoding with vlc as well with similar issues. Although vlc doesn't stop encoding, the output video has regions where it hangs. vlc -I dummy "http://url" --network-caching="1000" --sout="#transcode{vcodec=h264,vb=3000,acodec=mp3,ab=192}:std{access=file,mux=mp4,dst=/tmp/stream.mp4}" [mpeg2video @ 0x7f2d4c001e20] ac-tex damaged at 9 33 [mpeg2video @ 0x7f2d4c001e20] Warning MVs not available [mpeg2video @ 0x7f2d4c001e20] concealing 132 DC, 132 AC, 132 MV errors [mpeg2video @ 0x7f2d4c001e20] ac-tex damaged at 16 17 [mpeg2video @ 0x7f2d4c001e20] Warning MVs not available [mpeg2video @ 0x7f2d4c001e20] concealing 836 DC, 836 AC, 836 MV errors libdvbpsi error (PSI decoder): TS discontinuity (received 4, expected 3) for PID 0 I also tried flv transcoding and it shows up with its own set of issues, like output flv file hangs in certain parts. Anyone know what's wrong or how to fix this?

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  • x.265 in ffmpeg

    - by Levan
    Today I found out that x265 is already present in ffmpeg so I compiled ffmpeg with this guide Sadly libx265 did not work on ubuntu, however on windows I tried the same thing with zeranoe ffmpeg build and it worked without a problem. So do you think i did something wrong or it is not yet implemented in linux build (using that guide)? The results of the command ffmpeg -codecs | grep -i hevc show: ffmpeg version 2.1.git Copyright (c) 2000-2014 the FFmpeg developers built on Feb 19 2014 19:00:17 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9) configuration: --prefix=/home/levan/ffmpeg_build --extra-cflags=-I/home/levan/ffmpeg_build/include --extra-ldflags=-L/home/levan/ffmpeg_build/lib --bindir=/home/levan/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab libavutil 52. 64.100 / 52. 64.100 libavcodec 55. 52.102 / 55. 52.102 libavformat 55. 33.100 / 55. 33.100 libavdevice 55. 10.100 / 55. 10.100 libavfilter 4. 1.102 / 4. 1.102 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 D.V.L. hevc H.265 / HEVC (High Efficiency Video Coding) Thank you for your time

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  • MP4 plays on Safari 4 (desktop) but not on Safari Mobile (iphone)

    - by deb
    I'm encoding the video with ffmpeg and displaying it using the HTML 5 video tag. It works fine on Firefox (i'm also providing a ogg version) and Safari 4. However, when I try to open it on the iphone I get a "Cannot Play Movie" error. Here is the ffmpeg command I'm using: ffmpeg -y -i movie.mov -acodec libfaac -ar 44100 -ab 96k -vcodec libx264 -vpre hq -level 41 -crf 20 -bufsize 20000k -maxrate 1500k -g 250 -s 320X200 -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -flags2 +dct8x8+bpyramid -me_method umh -subq 7 -me_range 16 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -rc_eq 'blurCplx^(1-qComp)' -bf 16 -b_strategy 1 -bidir_refine 1 -refs 6 -deblockalpha 0 -deblockbeta 0 movie.mp4 I reduced the maxrate to 1500 because I read that if the bit rate is too high the iphone won't play the video, but still didn't work. I don't know where else to look... any ideas? Thanks in advance

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  • samsung HMX-H100P camcorder and video encoding with mencoder

    - by jskg
    Hi everyone, my background is totally not related to video stuff so pardon my newbie style. I own a samsung HMX-H100P camcorder and I'm trying to encode videos to be uploaded to Youtube and Vimeo. First problem: videos generated by the camera with no processing appear like this: http://www.youtube.com/watch?v=AANbl_DTuzE when I play them with Totem(Linux) or VideoLan. Second problem: When I try to encode the videos produced by the camera using mencoder I get the video at the resolution I chose but those ugly lines and lagging are still present. Here's the command I use: mencoder $inputFile -aspect 16:9 -of lavf -lavfopts format=psp -oac lavc -ovc lavc -lavcopts aglobal=1:vglobal=1:coder=0:vcodec=libx264:acodec=libfaac:vbitrate=4500:abitrate=128 -vf scale=1280:720 -ofps 25000/1001 -o $outputFile Any ideas? Thanks in advance

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  • shell script redirect output

    - by Andy
    I have a shell script to monitor process due to preventing the process closed. If the process is closed, that script will restart it. BTW, when the system starts, the crontab will run the script automatically. How can I get the output of the process which started by the shell script? #!/bin/bash PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin export PATH while : do if [ -z "$(ps -ef | grep -v grep | grep 225.0.6.4)" ]; then date +"%m-%d-%y %T" >> /home/andy/log/stream.log echo "225.0.6.4 - 103 not worked and restart process" >> /home/andy/log/stream.log echo "225.0.6.4 - 103 not worked and restart process" /usr/bin/tzap -a 1 -c /home/andy/channels.conf -o - -r -p "D" | /home/andy/ffmpeg -f mpegts -i pipe:0 -c:v libx264 -preset medium -crf 23 -bufsize 3000K -minrate 1200k -maxrate 1200k -pix_fmt yuv420p -g 50 -s 1024x768 -acodec libmp3lame -b:a 128k -ac 2 -ar 44100 -f mpegts udp://225.0.6.4:50000 & fi sleep 1 done

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  • Optimum encoding standard for flowplayer to play mp4

    - by renjucool
    I'm using flow player 3.1.1 for streaming videos to my browser.The videos are uploaded by the users and they may upload different formats. What will be solution to stream the videos as mp4 , what ever be the format they upload. I'm currently using ffmpeg commands. ffmpeg -i "InputFile.mp4" -sameq -vcodec libx264 -r 35 -acodec libfaac -y "OutputFile.mp4" But video files of more size(say 100mb) are taking a minute more for laoding in to the flowplayer and buffering. I think the problem with my encoding. Welcome your valuable Suggestions!!!

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  • FFmpeg bitrate issue.

    - by user329840
    I'm dealing with a very big issue about bit rate , ffmpeg provide the -b option for the bit rate and for adjustment it provide -minrate and -maxrate, -bufsize but it don't work proper. If i'm giving 256kbps at -b option , when the trans-coding finishes , it provide the 380kbps. How can we achieve the constant bit rate using ffmpeg. If their is +-10Kb it's adjustable. but the video bit rate always exceed by 50-100 kbps. I'm using following command ffmpeg -i "demo.avs" -vcodec libx264 -s 320x240 -aspect 4:3 -r 15 -b 256kb \ -minrate 200kb -maxrate 280kb -bufsize 256kb -acodec libmp3lame -ac 2 \ -ar 22050 -ab 64kb -y "output.mp4" When trans-coding is done, the Media Info show overall bit rate 440kb (it should be 320kb). Is their something wrong in the command. Or i have to use some other parameter? Plz provide your suggestion its very important.

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  • 11.10 suddenly became 2d

    - by Sergey Kravchenya
    After today's update ubuntu became 2d despite the fact that I logged in under "ubuntu" not "ubuntu 2d". Also some other issues appeared (e.g. my shortcuts rolled back, num pad doesn't work, caps lock key don't have any effect on case, when I'm typing in dash - it doubles every letter - 'n' -- 'nn' ) Here is update log: Setting up google-chrome-stable (17.0.963.83-r127885) ... Setting up libavutil51 (4:0.8.1-1~ppa1) ... Setting up libpostproc52 (4:0.8.1-1~ppa1) ... Setting up libswscale2 (4:0.8.1-1~ppa1) ... Setting up libavcodec53 (4:0.8.1-1~ppa1) ... Setting up libavformat53 (4:0.8.1-1~ppa1) ... Setting up libbluray1 (1:0.2.2-1~ppa1) ... Setting up libmp3lame0 (3.99.5+repack1-3~ppa1) ... Setting up libx264-120 (2:0.120.2171+git01f7a33-3~ppa1) ... Setting up libxvidcore4 (2:1.3.2-9~ppa1) ... Setting up thunderbird (11.0+build1-0ubuntu0.11.10.1) ... Installing new version of config file /etc/apport/blacklist.d/thunderbird ... Setting up thunderbird-globalmenu (11.0+build1-0ubuntu0.11.10.1) ... Setting up thunderbird-gnome-support (11.0+build1-0ubuntu0.11.10.1) ... Setting up thunderbird-locale-en (1:11.0+build1-0ubuntu0.11.10.1) ... Setting up thunderbird-locale-en-gb (1:11.0+build1-0ubuntu0.11.10.1) ... Setting up thunderbird-locale-en-us (1:11.0+build1-0ubuntu0.11.10.1) ... Setting up thunderbird-locale-ru (1:11.0+build1-0ubuntu0.11.10.1) ... Setting up ubuntu-tweak (0.6.2-1~oneiric1) ... Setting up xul-ext-calendar-timezones (1.3+build1-0ubuntu0.11.10.1) ... Setting up xul-ext-lightning (1.3+build1-0ubuntu0.11.10.1) ... Setting up xul-ext-gdata-provider (1.3+build1-0ubuntu0.11.10.1) ... What can I do to find what cause of this problem? What additional information should I provide to help you help me?

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  • Splitting an MP4 file

    - by Asaf Chertkoff
    what is the fastest and less resource consuming method for splitting an MP4 file? @Alex: it didn't work, i don't know why. see the out put here: asafche@asafche-laptop:~$ ffmpeg -vcodec copy -ss 0 -t 00:10:00 -i /home/asafche/Videos/myVideos/MAH00124.MP4 /home/asafche/Videos/myVideos/eh.mp4 FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.1, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --extra-version=4:0.5.1-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static 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 libswscale 0. 7. 1 / 0. 7. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Mar 31 2011 18:53:20, gcc: 4.4.3 Seems stream 0 codec frame rate differs from container frame rate: 119.88 (120000/1001) -> 59.94 (60000/1001) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/asafche/Videos/myVideos/MAH00124.MP4': Duration: 00:15:35.96, start: 0.000000, bitrate: 5664 kb/s Stream #0.0(und): Video: h264, yuv420p, 1280x720, 59.94 tbr, 59.94 tbn, 119.88 tbc Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16 Output #0, mp4, to '/home/asafche/Videos/myVideos/eh.mp4': Stream #0.0(und): Video: libx264, yuv420p, 1280x720, q=2-31, 90k tbn, 59.94 tbc Stream #0.1(und): Audio: 0x0000, 48000 Hz, stereo, s16, 64 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Unsupported codec for output stream #0.1 it says something about different frame rate...

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  • linux nooB: Installing ffmpeg + dependencies on aws linux ami (repo issues)

    - by HdN8
    Im installing ffmpeg to run on an amazon linux ami, and have added the rpmforge repo and the dag repo. Here are some guidelines I'm using for reference: TWoZaO and Razuna The rpmforge repo has ffmpeg, but if you try to install it then it will complain that is missing dependencies (for me libSDL-1.2.so.0()(64bit)). Regardless I will install ffmpeg from svn so I can be sure to enable the options I want (namely libx264). It seems strange to me though that SDL is not in rpmforge or dag, and in according to both of my references above, it should be there. I tried to grab it manually from here, but it needs these dependencies, so no-go: error: Failed dependencies: SDL = 1.2.10-8.el5 is needed by SDL-devel-1.2.10-8.el5.x86_64 alsa-lib-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libGL-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libGLU-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libSDL-1.2.so.0()(64bit) is needed by SDL-devel-1.2.10-8.el5.x86_64 libX11-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libXext-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libXrandr-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libXrender-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 libXt-devel is needed by SDL-devel-1.2.10-8.el5.x86_64 Any advice for a linux nooB lost in a mess of repos and dependency errors?

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  • ffmpeg: converting an avi to a reduced, shareable flv/mp4...

    - by meder
    I recently followed a guide and recompiled my ffmpeg so x264 is enabled. I used some generic settings to convert my 700 MB avi file to a mp4 file, the result was a 407MB mp4 file. The original avi file's settings: Codec: DX50 Resolution: 704x304 Frame rate: 23.976023 Stream 1 Codec: mpga Type: Audio Channels: 2 Sample rate: 48000 Hz Bitrate 179 kb/s Command I used: ffmpeg -i input.avi -acodec libfaac -ab 128k -ac 2 -vcodec libx264 -vpre hq -crf 22 -threads 0 output.mp4 The settings of the output file (output.mp4): Codec: avc1 Resolution: 704x304 Display resolution: 704x304 Frame rate: 11.988011 Stream 1 Codec: mp4a Type: Audio Channels: 2 Sample Rate: 48000 Hz Bits per sample: 16 Bitrate: 1536 kb/s The quality of the output mp4 is pretty nice, it seems as if it's pretty much the same as the original source. However, I'm trying to reduce the filesize and I'm not really sure whether I should go with an flv format or keep it mp4. The advantage the flv would have obviously is that it would be playable with a flash player ( I have come across some swf players which take a flash parameter to play an flv file ).. but maybe I could use the video element, as I'm only going to be displaying this video privately so I don't have to worry about supporting legacy browsers such as IE. Can someone recommend some settings to specify in order for the filesize to be around ~100-150MB or so? I don't mind a reduction in quality, nor do I mind resizing it - I was going to do it initially but I wasn't sure what the guidelines were ( if any ) for dealing with resolution.. since this video's is 704x304 would it still be ok if I forced it into one that isn't perfectly fit for the aspect ratio? I have no clue about that part. I realize that I could have probably specified 28 instead of 22 for the CRF, I'm not sure if I should do that as opposed to maybe specifying smaller resolution, which might make it smaller as well?

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  • ffmpeg conversion problem

    - by user33126
    installed ffmpeg and it shows version and all correctly. but even info ffmpeg command itself shows ffmpeg -i Alice_In_Wonderland.mp4 gives messgae like FFmpeg version 0.5, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --extra-cflags=-fPIC --enable-libamr-nb --enable-libamr-wb --enable-libdirac --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-x11grab libavutil 49.15. 0 / 49.15. 0 libavcodec 52.20. 0 / 52.20. 0 libavformat 52.31. 0 / 52.31. 0 libavdevice 52. 1. 0 / 52. 1. 0 libswscale 0. 7. 1 / 0. 7. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Nov 6 2009 19:11:04, gcc: 4.1.2 20080704 (Red Hat 4.1.2-46) Seems stream 1 codec frame rate differs from container frame rate: 49.93 (9986/200) - 49.92 (599/12) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Alice_In_Wonderland.mp4': Duration: 00:01:39.65, start: 0.000000, bitrate: 542 kb/s Stream #0.0(und): Audio: aac, 44100 Hz, stereo, s16 Stream #0.1(und): Video: h264, yuv420p, 480x270, 49.92 tbr, 24.96 tbn, 49.93 tbc At least one output file must be specified Please tell me whats the problem

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  • ffmpeg conversion problem

    - by Elamurugan
    installed ffmpeg and it shows version and all correctly. but even info ffmpeg command itself shows ffmpeg -i Alice_In_Wonderland.mp4 gives messgae like FFmpeg version 0.5, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --extra-cflags=-fPIC --enable-libamr-nb --enable-libamr-wb --enable-libdirac --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-x11grab libavutil 49.15. 0 / 49.15. 0 libavcodec 52.20. 0 / 52.20. 0 libavformat 52.31. 0 / 52.31. 0 libavdevice 52. 1. 0 / 52. 1. 0 libswscale 0. 7. 1 / 0. 7. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Nov 6 2009 19:11:04, gcc: 4.1.2 20080704 (Red Hat 4.1.2-46) Seems stream 1 codec frame rate differs from container frame rate: 49.93 (9986/200) - 49.92 (599/12) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Alice_In_Wonderland.mp4': Duration: 00:01:39.65, start: 0.000000, bitrate: 542 kb/s Stream #0.0(und): Audio: aac, 44100 Hz, stereo, s16 Stream #0.1(und): Video: h264, yuv420p, 480x270, 49.92 tbr, 24.96 tbn, 49.93 tbc At least one output file must be specified Please tell me whats the problem

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  • FFmpeg overlay two videos, one input with transparency

    - by Gian B.
    I am trying to create a karaoke from a CD+G file (converted to AVI using FFmpeg) and add a video as a background of the lyrics. Here's a screenshot of a the output from CD+G conversion, for simplicity let's call this lyrics.avi http://imgur.com/wUwHUhV Now a have this video.mp4 file that I'd like to put behind this lyrics.avi Here's a sample of what I'm trying to achieve http://imgur.com/8GuWXtQ I'm sure most of you are familiar with karaoke. I haven't used FFmpeg much and I'm not really sure if what I want to achieve is possible with FFmpeg. Is it possible to overlay two videos, and add a transparency to one of the videos? In this case the colour black? How can I set the offset time of the lyrics.avi? Here's the command the I've tried so far: ffmpeg -i video.mp4 -i lyrics.avi -filter_complex "nullsrc=size=854x480 [base]; [0:v] setpts=PTS-STARTPTS, scale=854x480 [upperleft]; [1:v] setpts=PTS-STARTPTS, scale=854x200 [bottomleft]; [base][upperleft] overlay=shortest=1 [tmp1]; [tmp1][bottomleft] overlay=shortest=1:y=280" -c:v libx264 -y karaoke.mp4

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  • How can I avoid a few seconds of blank video when using -vcodec copy?

    - by arlomedia
    I'm processing user-uploaded videos on a CentOS web server with ffmpeg. I need to convert each video to a standard size and format, then extract a 30-second sample clip from each video. I want to use the "-vcodec copy" flag in the extraction command to avoid encoding a second time. This command works for my initial conversion: ffmpeg -i uploaded.mov -f mp4 -vcodec libx264 -vpre medium -acodec libfaac -r 15 -b 360k -ab 48k -ar 22050 -s 480x320 formatted.mp4 And this sometimes works for the extraction: ffmpeg -i formatted.mp4 -vcodec copy -acodec copy -ss 0 -t 30 formatted_sample.mp4 However, when I run the extraction command on some videos, the extracted sample clip starts with several seconds of blank video. The audio starts right away but the video doesn't start for 3-6 seconds. To demonstrate the problem, I've uploaded two video clips and run the above commands on them. I created the first clip in Final Cut Express and encoded it with Handbrake before uploading to the web server: 1a) uploaded clip 1b) converted with first command 1c) extracted with second command, missing first six seconds By comparison, this second clip comes from Apple's website and does not show the problem: 2a) uploaded clip 2b) converted with first command 2c) extracted with second command, no problem Can anyone see what's different about the two source clips? And if so, is there anything I can do in my conversion command so that when the extraction command runs, the clip is set up to avoid the missing video? By the way, I initially had the problem with ffmpeg 0.6.1 installed from yum, but I upgraded to the latest git version and the problem remains.

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  • Incorrect durations mp4 file created by ffmpeg (avconv)

    - by Ruslan Sharipov
    Example usage: avconv -i rtmp://maps.lo.ufanet.ru/live/10e227922b473e91f37474fa084107af -vcodec copy -an -sn -map 0 -f segment -segment_format mp4 -segment_time 60 -y %05d.mp4 avconv version 0.8.3-6:0.8.3-1+b1, Copyright (c) 2000-2012 the Libav developers built on Jun 15 2012 13:54:35 with gcc 4.7.0 HandShake: client signature does not match! Metadata: height 480.00 remote_addr: sdp_session {sdp_session,0, {sdp_o,"-","1289703354974145","1289703354974145",inet4, "10.1.12.99"}, "Media Presentation", {inet4,"0.0.0.0"}, {0,0}, [{"control","*"},{"range","npt=0.0 start 30400239.52 timeshift_duration 319250.58 timeshift_size 120000.00 width 640.00 [flv @ 0x1d36a40] Estimating duration from bitrate, this may be inaccurate Input #0, flv, from 'rtmp://maps.lo.ufanet.ru/live/10e227922b473e91f37474fa084107af': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0.0: Video: h264 (Baseline), yuvj420p, 640x480 [PAR 1:1 DAR 4:3], 1k tbr, 1k tbn, 2k tbc Output #0, segment, to '%05d.mp4': Metadata: encoder : Lavf53.21.0 Stream #0.0: Video: libx264, yuvj420p, 640x480 [PAR 1:1 DAR 4:3], q=2-31, 1k tbn, 1k tbc Stream mapping: Stream #0:0 -> #0:0 (copy) Press ctrl-c to stop encoding ^Cframe= 9566 fps= 36 q=-1.0 Lsize= -0kB time=318.25 bitrate= -0.0kbits/s video:30348kB audio:0kB global headers:0kB muxing overhead -100.000071% Received signal 2: terminating. Result: serafim@yard:~/video2$ ls 00000.mp4 00001.mp4 00002.mp4 00003.mp4 00004.mp4 00005.mp4 Now try to play the files in the player, such as VLC. And that's what we get: the first fragment (00000.mp4) played well, no problems, but the second (00001.mp4 and beyond) starts the bug manifests itself, namely the file 00001.mp4 first 60 seconds black screen, but since 61 seconds starts playing the video. Attachments: https://dl.dropbox.com/u/760901/rtmp_and_mp4.zip How to get rid of the delay with black screen at the beginning of the segments? Maybe ffmpeg to pass parameters, or third-party software is able to correct the obtained segments mp4?

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