FFMPEG
Sunday 27 February 2005 @ 2:22 pm

This tutorial is about transcoding video fom one codec into another using FFMPEG. I got deeper into FFMPEG when I wanted to transcode into FLV (Flash Video) and it works very well. I developed the Riva FLV Encoder, a GUI for FFMPEG.

Update 26.10.2006: This tutorial is a little outdated as there were many changes in FFMPEG like the switch from CVS to Subversion and the workflow to compile FFMPEG under Windows has become more difficult. For the new tweaks check this tutorial.

  1. Download MinGW ” MSYS current releases (Window Exe Binaries MSYS-1.0.10.exe & MinGW-3.1.0-1.exe)
      Install MinGW
      Install MSYS
      HINT: During the Postinstall be sure to set the right path to MinGW with a “/” instead of a Windows-”". If you did it wrong anyway re-install MSYS to the same directory and do the postinstall right (I missed it a few times)
  2. Download and compile Lame
      Extract Lame to your MSYS home-directory
      Open MSYS and change to your lame-directory (cd ../lame-XXX)
      Enter the following commands:

      ./configure //(takes a few minutes)
      make //(lame is being comiled; takes a few minutes, too)
      make install
      After installing you will recognize that there are new directories and files in MSYS/local which we will use while compiling ffmpeg with mp3-support
  3. Download Subversion Client like Tortoise SVN (http://http://tortoisesvn.tigris.org/) and install it
      Check out the sourcecode from svn://svn.mplayerhq.hu/ffmpeg
    • Compile FFMPEG
        Change the directory in MSYS to your ffmpeg-directory (cd ../ffmpeg)
        Enter the command:

        ./configure --enable-memalign-hack --enable-mingw32 --enable-mp3lame --extra-cflags=-I/local/include --extra-ldflags=-L/local/lib
        HINT: you can paste into MSYS by pressing your center mouse-button
      1. “–enabled-memalign-hack” is a Windows hack. Without this option ffmpeg always crashs with the message “removing common factors from framerate” when encoding AVIs.
      2. “–enable-mingw32″. I see no difference without it but we compile with MinGW and it would not do a harm when ffmpeg knows this
      3. “–enable-mp3lame”: Enable transcoding audio with the open-source mp3-lame-codec
      4. “–extra-cflags=-I/local/include –extra-ldflags=-L/local/lib”: The cflags- and ldflags-parameter sets the right path to your lame-installation which you did in step 3.d.
        Enter command: make (ffmpeg is being compiled; takes a few minutes)
        With “make install” you could now copy the ffmpeg.exe to c:Program Filesffmpeg. But there is no need to.
    • Use FFMPEG
        Copy your compiled ffmpeg.exe from your MSYS directory to the directory where you like to transcode with ffmpeg
        Open the Dos-Shell and change to the directory where you copied the ffmpeg.exe
        Copy a test.mpg into your directory and enter the following command:

        ffmpeg -i test.mpg -ab 56 -ar 22050 -b 500 -r 15 -s 320x240 test.flv
        Your first FLV should be encoded now
    • Render Images from a Video
        Enter command:

        ffmpeg -an -y -t 0:0:0.001 -i test.flv -f image2 test%d.jpg
      • HINT: With -t you set the length of images to be extracted. Above we entered 1 millisecond the extract one image. If you miss this parameter all images of the video will be extracted

    ZLib Support (e.g. for TSCC and Quicktime codecs). This should be compiled into FFMPEG. It is not an explicit compile in the configure statement. Do the following steps and after configure you should see that zlib is “on”.
    Download and compile ZLib
    Extract the files to your mysys directory
    Change the directory in MSYS to that directory
    Enter command ./confugure, make and make install.
    AC3 Support
    Add “–enable-a52 –enable-gpl” to your configure command

    3GP Support
    If you want to enable 3GP support you have to add the AMR audio codec. Download the TS26.104
    REL-5 V5.1.0 26104-5??.zip here. Extract the codec into libavcodec/amr_float and add “–enable-amr_nb” to your configure command

    XVID Support (thanks to garvin.thornten at datel.co.uk)
    Download and install the codec from www.xlib.org (see xvidcore-xxxx/doc/install). Add “–enable-xvid –enable-gpl” to your configure command. When compiling with xvid codec in MinGW or cygwin you will get a “mkstemp” error when compiling “xvidff.c”. To fix this edit “libavcodec/xvidff.c” and add the following after the #includes. This will probably be fixed in a future ffmpeg release: ´

    /* Added for windows compile ----------------- */
    #include
     
    int xvid_ff_2pass(void *ref, int opt, void *p1, void *p2); void xvid_correct_framerate(AVCodecContext *avctx);
     
    int mkstemp(char* template)
    {
    char temppath[512];
    if(GetTempPath(512,temppath)!=0)
    {
    if(GetTempFileName(temppath,"fil",0,template)!=0)
    {
    FILE *pFile;
    pFile=fopen(template,"w+");
    if(pFile!=NULL)
    return (int)pFile;
    }
    }
    return -1;
    }
    /* ------------------------------------------- */

    Link about qscale
    removed “-f singlejpeg” as its identical to “-f mjpeg”

    - Posted in Uncategorized by Sönke  




    180 Responses to 'FFMPEG'

    1. Evert - March 8th, 2005 at 4:38 am

      Audio doesn’t seem to work with ffmpeg. I tried it on a linux machine, but I did it with lame, so it shouldn’t be any problem.

      Any ideas?

    2. Sönke - March 8th, 2005 at 7:40 am

      No idea. There should be no problems. Post your problem more detailed in the ffmpeg-mailinglist.

      Cheers,
      Sönke

    3. xie bo - March 15th, 2005 at 1:30 pm

      About 10.XVID Support (thanks to garvin.thornten at datel.co.uk)

      Which file should I add ur codes? xvidff.c?
      Thanks!

    4. xie bo - March 15th, 2005 at 2:30 pm

      And how about faac and faad2 enable for ffmpeg? Looking forward to it … :)

    5. Sönke - March 15th, 2005 at 3:38 pm

      The file is xvidff.c as mentioned there.
      faac and faad2 have to be enabled while configuring:
      –enable-faac
      –enable-faad
      I am not sure if extra libraries have to be installed/compiled for this. maybe you can give it a try and report.

      Cheers,
      Sönke

    6. RockAttack - March 23rd, 2005 at 2:25 am

      zlib-support is also required for many Quicktime files b/c they can have their headers compressed with Zlib. I suggest to compile *always* with zlib support

    7. Lee - March 28th, 2005 at 1:12 am

      Sönke,
      Thanks so much for your information. I found this with Google. Between your wisdom and other snippets I’ve found on the web, I have a compiled FFmpeg that I’m very happy with.

      I must say, your code addition to get –enable-xvid was a lifesaver. As far as I can tell, you are the only one on the web who has published this important info. May I ask how you learned how to do it? I’m starving for more info on FFmpeg. The code worked great once I included the full path to the windows.h include. For some reason msys couldn’t find it.

      Also, you need the extra libraries if you –enable-faac and –enable-faad.

    8. Sönke - March 28th, 2005 at 12:11 pm

      Hi,
      thanks for the kind feedback but the xvid hack wasn’t me. Look at the thanks to in the xvid part. He emailed me the code to add it to my tutorial.
      Also thanks to RockAttack. I changed the ZLib part.

    9. ahomanga - April 30th, 2005 at 7:50 am

      berrygood

    10. ちるちる - May 16th, 2005 at 8:42 am

      FFmpegでswfへ変換

      Import&Exportにswfが使えるんなんて、FFmpegって結構使えるのね。 こういうことは、学校で教えてください。つか、FLVエンコーダーもあるのかよ。 FFmepg(マルチメディア変換)の使い方 Sonke R…

    11. ADAM - May 31st, 2005 at 1:26 am

      works great - however is there a way to put the metadata into the flv at the same time as encoding? .. so it can be used with nice swf players?

    12. Sönke - May 31st, 2005 at 12:18 pm

      FFMPEG does not support metadata. You can use FLVTool2 to inject metadata into FLVs. The Riva FLV Encoder uses both tools and supports FLV 1.1

    13. Vu - May 31st, 2005 at 7:24 pm

      Thanks for a nice website. I had problems while compiling ffmpeg, but thanks to your website, many things were cleared up.

      Also, have you successfully compiled and run ffmpeg with the additional option -–enable-shared in the command line? The compiler complains that ld.exe cannot find -lmp3lame when -–enable-shared is added. If you have resolved this problem, please add the instruction to your ffmpeg guide as well.

      Thanks.

    14. Sönke - June 1st, 2005 at 7:21 am

      Hi, I haven’t tried –enable-shared yet and don’t have a solution for your problem.

    15. John Giotta - June 30th, 2005 at 6:41 pm

      FFMPEG has the ability to grab video from a live source.
      Has anyone successfully done this on a windows environment?

    16. Sönke - June 30th, 2005 at 6:45 pm

      From what I know this works only on linux machines. This was discussed in the FFMPEG mailing list.

    17. John Giotta - June 30th, 2005 at 8:47 pm

      If that’s true, then I’m back to square one.

      Know of any command line capture software?

    18. Sönke - July 1st, 2005 at 7:37 am

      I have tried a few but I don’t remember there names, sorry.

    19. RockAttack - August 21st, 2005 at 10:21 pm

      Anybody here that has build / compile instructions on howto build FAAD2 with MinGW32? I really want to build a ffmpeg version that supports as much codecs and fileformats possible, all using freely available opensource tools. To make things a bit more user-friendly I want to try and get it all working under Mingw32. Only FAAD2 is not working under Mingw32 right now. Any help / info is welcome.

    20. sean - October 16th, 2005 at 7:27 pm

      Great stuff. I too would like to build a “mega ffmpeg” on linux to handle as many video input files as possible. A turorial on this..step by step…would be great in terms of the libs necessary and the order of installs, etc.

      thanks!

    21. ritz - November 7th, 2005 at 12:57 pm

      Hi. I am trying to do the following: take an flv (audio only) file recorded with the Flash Communications Server MX and convert it to MP3 format on a

      Windows XP Pro machine. I found your site and followed your excellent instructions at http://soenkerohde.com/tutorials/ffmpeg/
      I was able to get everything to compile (although for others trying I should mention that there was one small problem not documented. When compiling LAME it

      could not find some files in C:\msys\1.0\home\Admin1\lame-3.96.1\libmp3lame. The solution was to edit line 13 of one of the header files and then LAME

      compiled fine). So after everything, I put some flv files record from the flashcom sample app into a directory called c:\video, navigated there in DOS and

      tried to run:

      ffmpeg -i a.flv m.mp3
      and got the following error:

      ffmpeg version CVS, build 3277056, Copyright (c) 2000-2004 Fabrice Bellard
      configuration: –enable-memalign-hack –enable-mingw32 –enable-mp3lame –extra-cflags=-I/local/include –extra-ldflags=-L/local/lib
      built on Nov 6 2005 21:04:20, gcc: 3.4.2 (mingw-special)
      [flv @ 006C5D14]Unsupported audio codec (5)
      Input #0, flv, from ‘a.flv’:
      Duration: N/A, bitrate: N/A
      Stream #0.0: Audio: 0×0005, 8000 Hz, mono
      Output #0, mp3, to ‘a.mp3′:
      Stream #0.0: Audio: mp3, 8000 Hz, mono, 64 kb/s
      Stream mapping:
      Stream #0.0 -> #0.0
      Unsupported codec (id=0) for input stream #0.0
      I tried a lot of other ffmpeg parameters but could not get anything to work. Do you have any ideas how to make this work? I know it can be done because I

      have seen other sites doing this. Thanks very much for any help - you seem to be the resident guru on this topic!

      Also, I should mention that I found some other suggestions such as using:

      ffmpeg -i $input_dir$movie -hq -acodec mp3 -ar $22050 -ab 56 -f flv -s 320×240 -aspect 4:3 -y $output_dir$filename.flv

      which supposedly is based off your own software! However when I try:
      ffmpeg -i a.flv -hq -acodec mp3 -ar $22050 -ab 56 -f flv -s 320×240 -aspect 4:3 -y a.mp3

      this I get:

      ffmpeg version CVS, build 3277056, Copyright (c) 2000-2004 Fabrice Bellard
      configuration: –enable-memalign-hack –enable-mingw32 –enable-mp3lame –extra-cflags=-I/local/include –extra-ldflags=-L/local/lib
      built on Nov 6 2005 21:04:20, gcc: 3.4.2 (mingw-special)
      [flv @ 006C5D14]Unsupported audio codec (5)
      Input #0, flv, from ‘a.flv’:
      Duration: N/A, bitrate: N/A
      Stream #0.0: Audio: 0×0005, 8000 Hz, mono
      c:\ffmpeg\ffmpeg.exe: unrecognized option ‘-hq’

      which I don’t understand at all! If I take out the -hq I will get this error:

      $ ffmpeg -i a.flv -acodec mp3 -ar $22050 -ab 56 -f flv -s 320×240 -aspect 4:3 -y a.mp3
      ffmpeg version CVS, build 3277056, Copyright (c) 2000-2004 Fabrice Bellard
      configuration: –enable-memalign-hack –enable-mingw32 –enable-mp3lame –extra-cflags=-I/local/include –extra-ldflags=-L/local/lib
      built on Nov 6 2005 21:04:20, gcc: 3.4.2 (mingw-special)
      [flv @ 006C5D14]Unsupported audio codec (5)
      Input #0, flv, from ‘a.flv’:
      Duration: N/A, bitrate: N/A
      Stream #0.0: Audio: 0×0005, 8000 Hz, mono
      Output #0, flv, to ‘a.mp3′:
      Stream #0.0: Audio: mp3, 2050 Hz, mono, 56 kb/s
      Stream mapping:
      Stream #0.0 -> #0.0
      Error while opening codec for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height

      Of course I tried Riva but I get the following error:
      Encoding has failed
      This can be caused by a not supported combination of parameters or by a not supported video codec
      and the log file says:

      ffmpeg version 0.4.9-pre1, build 4751, Copyright (c) 2000-2004 Fabrice Bellard
      configuration: –enable-memalign-hack –enable-mp3lame –enable-mingw32 –extra-cflags=-I/local/include –extra-ldflags=-L/local/lib –enable-amr_nb
      built on Mar 29 2005 07:26:02, gcc: 3.2.3 (mingw special 20030504-1)
      [flv @ 0040F954]Unsupported audio codec (5)
      Input #0, flv, from ‘C:\video\a.flv’:
      Duration: N/A, bitrate: N/A
      Stream #0.0: Audio: 0×0005, 8000 Hz, mono
      Output #0, flv, to ‘C:\video\a.flv’:
      Stream #0.0: Audio: mp3, 22050 Hz, mono, 56 kb/s
      Stream mapping:
      Stream #0.0 -> #0.0
      Unsupported codec (id=0) for input stream #0.0

      which I don’t understand either. Could you offer any suggestions? Thanks very much for any help.

    22. Sönke - November 7th, 2005 at 6:51 pm

      Hi,
      sorry no idea but I would try to ask the ffmpeg-mailinglist.

    23. Phil - November 12th, 2005 at 9:44 pm

      Your website is absolutely been a savior. It’s held the solutions to many of the problems that were encountered while compiling ffmpeg.

      lame failed to compile with the following changes listed below.

      the compiler does not have lame/mpglib in its list for include files. simple fix: edit libmp3lame/mpglib_interface.c line 13 to #include “../mpglib/interface.h”

      May I suggest that you take this wonderful page and start a compressive wiki page to help people with their attempts to compile and use ffmpeg I’d be willing to help as well.

    24. Jeremy - November 14th, 2005 at 7:20 am

      To get –enable-shared to work, I had to copy libxvidcore.a and libmp3lame.a to the MinGW\lib folder .. for some reason it wasn’t accepting the
      –extra-ldflags=-L/local/lib

      *shrugs* once I copied them the enable-shared option worked.

      -jeremy

    25. video - December 1st, 2005 at 2:50 pm

      How can I conver a flv file to 3gp format file?

    26. firefox - December 1st, 2005 at 2:57 pm

      I found the way myself.
      ./configure –enable-memalign-hack –enable-amr_nb

    27. Zakwer - December 3rd, 2005 at 10:40 pm

      http://www.xlib.org is down.
      I wonder if xvidcore-1.1.0-beta2.zip from http://www.xvid.org/downloads.html can be used instead… I will give it a try

    28. Zakwer - December 4th, 2005 at 2:25 am

      I have just compiled it with all the options you mention, using your excellent instructions.

      A couple of hints:

      I jumped into an error about lrintf, similar to this : http://permalink.gmane.org/gmane.comp.video.ffmpeg.devel/23188

      I fixed it (I think) the same way: replace
      static always_inline long int lrintf(float x)
      with
      static inline long int lrintf(float x)
      in file libavutil/common.h.
      (Maybe it wouldn´t have been necessary if I had done the next change before…)

      Also, lame 3.96a was giving me trouble, I tried several older versions but finally achieved it with lame-3.97beta2, which I download form sourceforge. http://lame.sourceforge.net/ is outdated, use http://sourceforge.net/projects/lame and get it from to the Files section

      Good luck!

    29. firefox - December 6th, 2005 at 4:46 am

      I can’t add –enable-mp3lame to build the ffmpeg.Why?Should I download a lame and build?What I should do?

    30. Sönke - December 6th, 2005 at 1:27 pm

      Yes, please check part 2. of my tutorial.

    31. Joxean943 - December 8th, 2005 at 12:49 am

      Thanks for your great site!
      I need to build ffmpeg with AC3 encoding capabilities. I know i need to add ‘-enable-a52bin -extra-libs=”-la52″‘ to the line of configure. I’d installed A52DEC but I don’t know why, it’s not enough. Do you know what I must do now?
      Cheers

    32. Sönke - December 8th, 2005 at 12:56 am

      You are welome but sorry, I dont know what you exactly have to do to include AC3

    33. uno - December 8th, 2005 at 6:12 pm

      Great tutorial! very appriciated! Now one question :-) Lets say i put a swf containing a flv-player on site A 10mbit host and some flv files on a site B 100mbit host. i tell the flv-player at site A to play the flv’s at site B. Now some user goes watching the clip on my site, does he download the flv from site B or does the swf download the flv and broadcast it via site A?

    34. uno - December 8th, 2005 at 7:32 pm

      Hi again. i have one more question. My movies encode succesfully with ffmpeg in linux but when i watch them with some flv player on my site, the “progressbar”-thing isnt “scrollable” until the whole movie is downloaded, i guess its because there’s no cue points added in the movie with ffmpeg. is this fixable with flvtool2? if so, whats the commando? i like your riva encoder though i must do this in linux since its takes forever to download the movie from my server and then reupload it. any help appriciated.

    35. abstract - December 9th, 2005 at 3:25 pm

      Hi ! thanx for the tut!

      i did everything mentioned, but when i want to do the make command for the ffmpeg.exe, i get a bunch of parse errors like this:
      avcodec.h:1987: warning: data definition has no type or storage class
      avcodec.h:1988: parse error before “flv_decoder”
      avcodec.h:1988: warning: type defaults to `int’ in declaration of `flv_decoder’
      avcodec.h:1988: warning: data definition has no type or storage class
      avcodec.h:1989: parse error before “rv10_decoder”
      avcodec.h:1989: warning: type defaults to `int’ in declaration of `rv10_decoder’
      avcodec.h:1989: warning: data definition has no type or storage class
      avcodec.h:1990: parse error before “rv20_decoder”

      Anyone an idea?

    36. Sönke - December 9th, 2005 at 3:31 pm

      Hi,
      @32: There is no broadcast but simply a download when you don’t use a special server like the Flash Media Server.
      @33: it’s not because of the cuepoints but because of the missing metadata. you can inject the missing metadata with flvtool2: http://inlet-media.de
      @34: sorry, no idea. I would ask the ffmpeg-mailinglist …

    37. abstract - December 9th, 2005 at 3:44 pm

      Ähmm it starts like this:
      make[1]: Entering directory `/c/msys/1.0/home/ffmpeg/libavcodec’
      gcc -O3 -g -Wall -Wno-switch -I/local/include -DHAVE_AV_CONFIG_H -I.. -I’/../c/ msys/1.0/home/ffmpeg’/libavutil -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GN U_SOURCE -c -o bitstream.o bitstream.c
      In file included from bitstream.c:28:
      avcodec.h:14:20: avutil.h: No such file or directory
      In file included from bitstream.c:28:
      avcodec.h:436: parse error before “int16_t”
      avcodec.h:436: warning: no semicolon at end of struct or union
      avcodec.h:437: warning: type defaults to `int’ in declaration of `AVPanScan’
      avcodec.h:437: warning: data definition has no type or storage class
      avcodec.h:672: parse error before “uint8_t”

      do i have to put the specified files to the same folder ?

    38. Sönke - December 16th, 2005 at 3:00 pm

      Do you try the latest version from CVS?
      I would ask the FFMPEG list for such questions …

      Cheers,
      Sönke

    39. that_guy - January 10th, 2006 at 11:49 am

      Hi,

      Just wondering if you had any info on compiling ffmpeg for Windows Mobile. I’ve asked at the ffmpeg mailing list and at corecodec.com (tcpmp uses ffmpeg) but have not received any replies. I’ve tried a number of things (wince toolchains, configure options) but nothing has worked. Any help would be very much appreciated.

      P.S. Great guide for compiling for Win32. It saved my butt.

    40. Sönke - January 10th, 2006 at 1:38 pm

      Sorry, no idea. but good luck!

    41. gugcula - January 18th, 2006 at 11:43 am

      Hi, i’m just follow your instruction and
      after compiling and installing of ffmpeg.
      The error message popup was shown and it say that
      “This application has failed to stard because libmp3lame-0.dll was not found.Re-installing the application may fix this problem”

      Anyone an idea?

    42. Blakieto - January 19th, 2006 at 7:10 am

      Thanks for the great tutorial. I followed the instructions for everything except xvid, and it all worked fine. Now I can create flv’s with video AND audio. NICE!

      Do you, or anyone reading this, have any links to or examples of the command line to make ffmpeg generate a 3gp with both video and audio?

      I have 15 second video clip that I’ve broken into a series of jpegs and a single .wav file. I can now, thanks to this site, encode that as a flv with both the video and audio, but I’m not able to figure out the right set of command line parameters to encode it as a 3gp. I have an earlier version of ffmpeg (precompiled from the Gallery2 source forge project) that I am able to generate an mp4 with, and by simply changing the extension to .3gp the file plays on my Samsung cellphone, but it does not have audio.

      Any advice, links or examples anyone?

    43. Blakieto - January 19th, 2006 at 7:15 am

      Hey gugcula:

      I had the same problem. Simply look in your msys’s local\bin and the libmp3lame-0.dll file is there. Copy that into the same directory as your ffmpeg.exe and you are good to go.

      On my setup, that directory is C:\msys\1.0\local\bin

    44. gugcula - January 20th, 2006 at 10:47 am

      After compiling and copying lib are completed, i’m trying
      to convert but it always display these message

      C:\Program Files\FFmpeg>ffmpeg.exe -y -i legendheroes_ot_psp_101805.mpg sample.flv
      Input #0, mpeg, from ‘legendheroes_ot_psp_101805.mpg’:
      Duration: 00:01:06.7, bitrate: 1528 kb/s
      Stream #0.0: Video: mpeg1video, 320×240, 29.97 fps, 1350 kb/s
      Stream #0.1: Audio: mp2, 48000 Hz, stereo, 128 kb/s
      Output #0, flv, to ’sample.flv’:
      Stream #0.0: Video: flv, 320×240, 29.97 fps, q=2-31, 200 kb/s
      Stream #0.1: Audio: mp3, 48000 Hz, stereo, 64 kb/s
      Stream mapping:
      Stream #0.0 -> #0.0
      Stream #0.1 -> #0.1
      Fatal error: mp3 data is not padded!

      Could you guys offer any solutions?

    45. Sönke - January 20th, 2006 at 11:09 am

      hi gugcula,
      sorry no idea. I would ask in the ffmpeg-mailinglist.

    46. gugcula - January 20th, 2006 at 7:21 pm

      ok i’ll go there thank you for provide this good tutorial

    47. chandra - January 21st, 2006 at 8:13 am

      Hi,
      i want to do video processing using opencv and VC++
      i don’t now how to install ffmpeg for windows and how to use ffmpeg with opencv and vc++ to do video processing could please anyone give me the stepwise procedure to do this.

    48. Hans - February 11th, 2006 at 7:42 pm

      I want to use ffmpeg to convert from 3GP to FLV. Unfortunatly the video-stream is not converted correctly. The video of the resulting FLV runs almost twice as fast, as in the origianl 3GP. I a,lso notice this in ffmpeg’s output:

      …Input
      Stream #0.0: Video: h263, 176×144, 11.51 fps
      …Output
      Stream #0.0: Video: flv, 176×144, 20.00 fps, q=2-31, 200 kb/s

      I use the following command:
      ffmpeg -i 77493_1139671907306.3pg -y -ar 22050 test.flv

      Does anyone have an idea about this? The option -r does not fix my problem.
      I use ffmpeg version 0.4.9-pre1, build 4718

      Thnaks alot and kind regards, hans

    49. Hans - February 11th, 2006 at 7:45 pm

      Ah, sorry. I need to add, that this tutorial helped me alot getting ffmpeg started ;)

    50. Sönke - February 11th, 2006 at 7:54 pm

      Hi Hans,
      i don’t know where the problem is. I would ask the ffmpeg-mailinglist.

    51. Hans - February 12th, 2006 at 11:42 am

      Hi Sönke,

      thanks for your quick answer. I should have checked out the latest version from the CVS-Repository in first place. After a little bit of struggeling with the make-process I compiled it and everything is running fine now.

      Kind regards, Hans

    52. Odders - February 16th, 2006 at 2:52 am

      Hi Sonke,

      Just wanted to thanks for the great info.

    53. aeropriest - February 16th, 2006 at 4:39 pm

      Thank you so much for great tutorial here. I have been trying to compile ffmpeg with AAC on windows. I followed everything as you explained but somehow ffmpeg failed to find the ffmpeg libraries. I am able to compile AAC and xvid sepertly and set the path. I used follwing configure command

      ./configure –enable-shared –disable-static –enable-memalign-hack –enable-
      faac –extra-cflags=-I/C/mplayer/msys/faac/include –extra-ldflags=-L/c/mplayer
      /msys/faac/libfaac/Debug

      but got the following build error

      make -C libavutil all
      make[1]: Entering directory `/ffmpeg/libavutil’
      gcc -shared -Wl,-soname,avutil.dll.49 -Wl,–output-def,avutil.def,–out-implib,libavutil.dll.a -o avutil.dll mathematics.o integer.o rational.o intfloat_readwrite.o -lm -lfaac -lz
      c:\mplayer\MinGW\bin\..\lib\gcc\mingw32\3.4.2\..\..\..\..\mingw32\bin\ld.exe: cannot find -lfaac
      collect2: ld returned 1 exit status
      make[1]: *** [avutil.dll] Error 1
      make[1]: Leaving directory `/ffmpeg/libavutil’
      make: *** [lib] Error 2

      I am sure you can help me here. Thanks in advance

    54. aeropriest - February 17th, 2006 at 6:45 am

      I could solve the problem by copying libfacc.dll into Mingw32 include directory i.e. MinGW/lib/gcc/mingw32/3.4.2 and use the following config to build ffmpeg with xvid and aac

      ./configure –enable-shared –disable-static –enable-memalign-hack –enable-
      xvid –enable-gpl –extra-cflags=-I/C/mplayer/msys/xvidcore/src –extra-ldflags
      =-L/C/mplayer/msys/xvidcore/build/win32/bin –enable-faac –extra-cflags=-I/C/
      mplayer/msys/faac/include –extra-ldflags=-L/c/mplayer/msys/faac/libfaac/Debug

      now i get following errors

      Cannot export .idata$4: symbol not found
      Cannot export .idata$5: symbol not found
      Cannot export .idata$6: symbol not found
      Cannot export .text: symbol not found
      Cannot export xvidcore_NULL_THUNK_DATA: symbol not found
      Creating library file: libavcodec.dll.a
      faac.o(.text+0×3f): In function `Faac_encode_init’:
      C:/mplayer/msys/ffmpeg/libavcodec/faac.c:42: undefined reference to `faacEncOpen@16′
      faac.o(.text+0×4c):C:/mplayer/msys/ffmpeg/libavcodec/faac.c:47: undefined reference to `faacEncGetCurrentConfiguration@4′
      faac.o(.text+0xdb):C:/mplayer/msys/ffmpeg/libavcodec/faac.c:88: undefined reference to `faacEncSetConfiguration@8′
      faac.o(.text+0×134):C:/mplayer/msys/ffmpeg/libavcodec/faac.c:80: undefined reference to `faacEncGetDecoderSpecificInfo@12′
      faac.o(.text+0×181):C:/mplayer/msys/ffmpeg/libavcodec/faac.c:50: undefined reference to `faacEncClose@4′
      faac.o(.text+0×1f5): In function `Faac_encode_frame’:
      C:/mplayer/msys/ffmpeg/libavcodec/faac.c:102: undefined reference to `faacEncEncode@20′
      faac.o(.text+0×224): In function `Faac_encode_close’:
      C:/mplayer/msys/ffmpeg/libavcodec/faac.c:119: undefined reference to `faacEncClose@4′
      collect2: ld returned 1 exit status
      make[1]: *** [avcodec.dll] Error 1

      I compiled faac using visual studio 7

    55. lasse - February 18th, 2006 at 8:42 pm

      hi, really good stuff both this and the riva gui!
      i do have problems with my ffmpeg install, as the sound comes out all distorted and uhm buzzy. ive installed amr_nb and lame. riva converts the file just fine though. ever noticed anything like this?

    56. stevewu - February 20th, 2006 at 2:42 pm

      thanks for your information on –enable-xvid.
      It is really helpful. there is nobody provided such information on internet exept here.
      I share some my experience on –enable-xvid here:
      First, I changed in ffmpeg configure:
      1, point to right xvidcore library directory:
      –enable-xvid) xvid=”yes”
      extralibs=”$extralibs -L/usr/local/lib -lxvidcore”
      2. if test “$?” != “0″ ; then
      rm config.h
      mv -f $TMPH config.h
      else
      echo “config.h is unchanged”
      fi
      because it can not mv to config.h.
      3. here is my configure command line:
      ./configure –disable-static –enable-shared –enable-memalign-hack –enable-
      xvid –enable-gpl –enable-mingw32 –extra-cflags=-I/local/include –extra-ldfl
      ags=-L/local/lib
      4.
      make change in xvidff.c and xvid_rc.c
      pointing xvid.h to right position.
      On my pc this is the case, different from PC to PC:
      #include “../../../../local/include/xvid.h”
      5.
      add the scripts mentioned above in xvidff.c
      6,make

    57. lasse - February 23rd, 2006 at 1:44 pm

      just found out why i got distorted buzz instead of the correct audio. turns out i needed to compile with amr_nb-fixed as well.

    58. Tvpeople - March 6th, 2006 at 11:13 pm

      There’s a space between “windows” and “.h” in your code.
      Just found that out cuz cp & paste didn’t work
      #include

    59. Sönke - March 7th, 2006 at 11:55 am

      Thanks for the hint but this is a problem of the blogsoftware I am using. I have to upgrade to a newer version but had no time yet.

    60. AaronYue - March 12th, 2006 at 8:30 am

      Does ffmpeg can convert the file with extends “.wmv”, what is the command line.

    61. Sönke - March 12th, 2006 at 11:23 am

      yes, but only wmv7/8.
      http://ffmpeg.sourceforge.net/ffmpeg-doc.html#SEC19

    62. msonsuz - March 13th, 2006 at 12:36 am

      For people who want to install faad2 on msys
      Download faad2 using cvs
      After downloading ./bootstrap then ./configure and finally make

    63. Kani - March 16th, 2006 at 6:19 pm

      Thanks Man! :) this is was so simple and powerful for me… got things get started….

      i get can not find video graber device?
      any idea about what i am missing?

      thanks
      Kani

    64. Sönke - March 16th, 2006 at 6:24 pm

      from what i know grabbing does not work under windows. to be sure i would ask in the ffmpeg mailinglist.

    65. Kani - March 17th, 2006 at 5:46 pm

      that’s fine!
      now i am able to covert the videos but there is no audio in my output flv, what i am missing? :(
      i have followed everything you said above…
      upto 6 …

      i didn’t do anything after 6
      ZLib Support (e.g. for TSCC and Quicktime codecs).

      please help me.

    66. Sönke - March 17th, 2006 at 6:03 pm

      Which command did you use.
      I would recommend asking this in the ffmpeg mailinglist.

    67. Andrea - March 22nd, 2006 at 11:29 am

      Great guide, I fololow it in all steps but when i digit make for compile ffmpeg I obtain
      this stack with 2 error at the end? can i resolve it? how? thanks
      $ make
      make -C libavutil all
      make[1]: Entering directory `/c/ffmpeg/libavutil’
      make[1]: Nothing to be done for `all’.
      make[1]: Leaving directory `/c/ffmpeg/libavutil’
      make -C libavcodec all
      make[1]: Entering directory `/c/ffmpeg/libavcodec’
      gcc -O3 -g -Wall -Wno-switch -I/local/include -Wdeclaration-after-statement -DHAVE_AV_CONFIG_H -I.. -I/c/ffmpeg/libavutil -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -c -o mpegvideo.o mpegvideo.c
      In file included from c:/ffmpeg/libavutil/avutil.h:24,
      from avcodec.h:14,
      from mpegvideo.c:28:
      c:/ffmpeg/libavutil/common.h:596: warning: static declaration of ‘lrintf’ follows non-static declaration
      mpegvideo.c: In function `MPV_encode_picture’:
      c:/ffmpeg/libavutil/common.h:596: sorry, unimplemented: inlining failed in call to ‘lrintf’: redefined extern inline functions are not considered for inlining
      mpegvideo.c:2554: sorry, unimplemented: called from here
      make[1]: *** [mpegvideo.o] Error 1
      make[1]: Leaving directory `/c/ffmpeg/libavcodec’
      make: *** [lib] Error 2

    68. Sönke - March 22nd, 2006 at 11:35 am

      Did you use the latest CVS version?
      I would recommend asking this in the ffmpeg mailinglist.

    69. Andrea - March 22nd, 2006 at 1:09 pm

      i use the WinCVS 2.0.2.4 build 4 and for download ffmpeg i use the string that you have posted

    70. Derek - March 24th, 2006 at 5:22 am

      i have installed ffmpeg and lame in Linux, and enabled mp3lame using ./configure –enable-mp3lame, but i still got a message like “Unsupported codec for output stream #0.0″ when i trying to transfer a .wmv file or .wav file to mp3. any idea?

      the whole messages are:

      [root@xl2 ffmpeg-0.4.9-pre1]# ffmpeg -i input/kids.wav -acodec mp3 zz.mp3
      ffmpeg version 0.4.9-pre1, build 4718, Copyright (c) 2000-2004 Fabrice Bellard
      built on Mar 22 2006 13:19:59, gcc: 3.2.2 20030222 (Red Hat Linux 3.2.2-5)
      Input #0, wav, from ‘input/kids.wav’:
      Duration: 00:01:26.6, bitrate: 88 kb/s
      Stream #0.0: Audio: pcm_u8, 11025 Hz, mono, 88 kb/s
      Output #0, mp2, to ‘zz.mp3′:
      Stream #0.0: Audio: 0×0000, 11025 Hz, mono, 64 kb/s
      Stream mapping:
      Stream #0.0 -> #0.0
      Unsupported codec for output stream #0.0

    71. Derek - March 24th, 2006 at 5:26 am

      lame is woking fine in my Linux and i can transfer a .wav file to .mp3 useing command lame kids.wav test.mp3.

      and in /usr/local/lib/ directory, i can see :

      libmp3lame.la
      libmp3lame.so -> libmp3lame.so.0.0.0
      libmp3lame.so.0 -> libmp3lame.so.0.0.0
      libmp3lame.so.0.0.0

      please help me.

    72. Andrew - March 25th, 2006 at 6:34 am

      Derek, do you receieve any linking errors when you compile with the lame lib files? - my only concern is, is that its not actually linking into the ffmpeg executable, - have you tried to convert from wave to mp3 using just the lame binary? and if so does it work

    73. edward - March 30th, 2006 at 7:33 pm

      I have no idea about these,
      I just follow the ZLib support then make again.

      C:/msys/1.0/home/Administrator/ffmpeg/qt-faststart.c:152: undefined reference to `fseeko64′
      C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ccg5baaa.o(.text+0×516):C:/msys/1.0/home/Administrator/ffmpeg/qt-faststart.c:164: undefined reference to `fseeko64′
      C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ccg5baaa.o(.text+0×51e):C:/msys/1.0/home/Administrator/ffmpeg/qt-faststart.c:16

    74. Ken - April 1st, 2006 at 1:05 am

      an alternative is
      int mkstemp(char* template)
      {
      mkstemps(template,0);
      }

      then add the library libiberty ( -liberty )

      gcc -I../libvo -I../../libvo -fno-PIC -O4 -march=pentium3 -mtune=pentium3 -p
      ipe -ffast-math -fomit-frame-pointer -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
      -I. -Ig:/MinGW/include/freetype2 -Ig:/MinGW/include -I./libavutil -
      I./libavcodec -o mplayer.exe mplayer.o m_property.o mp_msg.o asxparser.o code
      c-cfg.o cpudetect.o edl.o find_sub.o m_config.o m_option.o m_struct.o parser-cf
      g.o playtree.o playtreeparser.o spudec.o sub_cc.o subreader.o vobsub.o unrarli
      b.o mixer.o parser-mpcmd.o subopt-helper.o osdep/mplayer-rc.o libvo/libvo.a li
      bao2/libao2.a vidix/libvidix.a libmpcodecs/libmpcodecs.a loader/libloader.a l
      oader/dshow/libDS_Filter.a loader/dmo/libDMO_Filter.a libaf/libaf.a libmpdemux/
      libmpdemux.a input/libinput.a postproc/libswscale.a osdep/libosdep.a -Llibmpdvd
      kit2 -lmpdvdkit libavcodec/libavcodec.a libavformat/libavformat.a libavutil/l
      ibavutil.a libavcodec/libpostproc/libpostproc.a -ltheora -lmp3lame -lxvi
      dcore -lpng -lz -static -lz -ljpeg -lx264 -Lg:/MinGW/lib -lfreetype /m
      ingw/share/live//liveMedia/libliveMedia.a /mingw/share/live//groupsock/libgroup
      sock.a /mingw/share/live//UsageEnvironment/libUsageEnvironment.a /mingw/share/l
      ive//BasicUsageEnvironment/libBasicUsageEnvironment.a -lstdc++ -lws2_32 -lgdi
      32 -lgdi32 -lwinmm -ladvapi32 -lole32 -lungif libfaad2/libfaad2.a mp3li
      b/libMP3.a liba52/liba52.a libmpeg2/libmpeg2.a tremor/libvorbisidec.a -static
      -lopengl32 -lgdi32 -lws2_32 -static -liconv -lm -liberty

    75. Ken - April 1st, 2006 at 1:07 am

      sorry

      int mkstemp(char* template)
      {
      return mkstemps(template,0);
      }

    76. ryuken - April 6th, 2006 at 2:34 pm

      How can I use FFMPEG libs to create jpg files from a video file?

      I have write some code to get a frame from video, but I do not know how to convert this frame to a jpeg file. I have tryed to convert FFMPEG AVFrame to a GD gdImage, and then save this GD gdImage to a jpeg file(ffmpeg-php use this kind of method), but the jpeg file I generated is incorrect.

      Can you help me? thanks a lot.

    77. Sönke - April 6th, 2006 at 3:49 pm

      you can extract the first image with
      ffmpeg -an -y -t 0:0:0.001 -i test.flv -f image2 test%d.jpg
      without -t 0:0:0.001 all frames are extraced.

    78. swansun - April 11th, 2006 at 8:05 pm

      i have installed ffmpeg into my linux system.

      and i am able to covert the videos,

      but there is no audio in my output flv, what i am missing?

      what’s wrong ?

      here are my commands , but both can’t create the flv file with audio . can u help me ? :(
      thank you!

      ffmpeg -i test.mpg -ab 56 -ar 22050 -b 500 -r 15 -s 320×240 test.flv

      ffmpeg -i test.mpg test.flv

    79. swansun - April 11th, 2006 at 8:22 pm

      i have enabled AC5 in config command line already

    80. Keynes - April 12th, 2006 at 2:50 am

      ffmpeg -i amc.avi amc.flv

      But amc.flv there is no audio in it, I don’t know why… who can tell me, thanks!!!!!

      liukai-1982.5.11@vip.citiz.net

      Thanks!!!

    81. - April 12th, 2006 at 3:55 am

      在学校的时English没有好好学,现在看不懂洋鬼子的文章,哪个好心看的懂中文的人加加我教小弟一下..
      QQ:925483

    82. swansun - April 12th, 2006 at 4:42 am

      Keynes , i get the same thing with you .
      there is no audio in my flv file .
      i’m using redhat linux , and found that the soundcard can’t be initialized correctly .

      is that the reason ?? not sure …

      can somebody tell me ? thanks !

    83. Sönke - April 12th, 2006 at 9:17 am

      Hi,
      if you have problems with ffmpeg-commands I recommend asking the ffmpeg-mailinglist.

    84. Phani - May 3rd, 2006 at 1:06 pm

      I want convert JPEG,GIF,WBMP files formats to various resolutions of JPEG formats. Can u suggest me how I can do in java?

    85. Sönke - May 3rd, 2006 at 1:27 pm

      No idea, sorry

    86. xiaosheng - May 18th, 2006 at 10:00 am

      Keynes , i get the same thing with you .
      there is no audio in my flv file .
      i’m using redhat linux , and found that the soundcard can’t be initialized correctly

    87. Sönke - May 18th, 2006 at 10:02 am

      again, this is a tutorial for compiling ffmpeg under windows. for such specific questions i recommend the ffmpeg-mailinglist.

    88. chuanying - May 24th, 2006 at 9:44 am

      how to convert avi(yuv422p mjpeg) to avi(simple profile no b frames)

    89. chuanying - May 25th, 2006 at 5:50 am

      how to compile ffmpeg.c under mingw studio developer?
      please tell me how to setup lib or h?thx.

    90. Paul Berry - June 2nd, 2006 at 3:38 pm

      Hi guys — is it possible to download a copy of FFMPEG that is already compiled to have LAME enabled? It would be awesome, not sure if its possible, sorry i’m very new to this

      Thanks!!
      Paul

    91. Paul Berry - June 2nd, 2006 at 8:49 pm

      Ok so also — CODE:
      cvs -z9 -d:pserver:anonymous@mplayerhq.hu:/cvsroot/ffmpeg co ffmpeg

      This part returns to me that the server is actively refusing the connection. it seems that that server is down, is there an alternative out there?

    92. jinquan - June 9th, 2006 at 3:27 pm

      First off, thanks for sharing this. This step-by-step is awesome.

      I got
      MinGW-3.1.0-1
      MSYS-1.0.10
      lame-3.97
      FFMPEG - got it from TortoiseSVN and input the link on ffmpeg(svn://svn.mplayerhq.hu/ffmpeg/trunk)(i can’t get it from step 3)

      Following the steps, but got stuck when try to “make” ffmpeg with following error

      mp3lameaudio.c:27:23: lame/lame.h: No such file or directory
      mp3lameaudio.c:31: parse error before “lame_global_flags”
      mp3lameaudio.c:31: warning: no semicolon at end of struct or union
      mp3lameaudio.c:35: parse error before ‘}’ token
      mp3lameaudio.c:35: warning: type defaults to `int’ in declaration of `Mp3AudioContext’
      mp3lameaudio.c:35: warning: data definition has no type or storage class
      mp3lameaudio.c: In function `MP3lame_encode_init’:
      mp3lameaudio.c:39: `s’ undeclared (first use in this function)
      mp3lameaudio.c:39: (Each undeclared identifier is reported only once
      mp3lameaudio.c:39: for each function it appears in.)
      mp3lameaudio.c:46: warning: implicit declaration of function `lame_init’
      mp3lameaudio.c:48: warning: implicit declaration of function `lame_set_in_samplerate’
      mp3lameaudio.c:49: warning: implicit declaration of function `lame_set_out_samplerate’
      mp3lameaudio.c:50: warning: implicit declaration of function `lame_set_num_channels’
      mp3lameaudio.c:52: warning: implicit declaration of function `lame_set_quality’
      mp3lameaudio.c:54: warning: implicit declaration of function `lame_set_mode’
      mp3lameaudio.c:54: `JOINT_STEREO’ undeclared (first use in this function)
      mp3lameaudio.c:55: warning: implicit declaration of function `lame_set_brate’
      mp3lameaudio.c:58: warning: implicit declaration of function `lame_set_VBR’
      mp3lameaudio.c:58: `vbr_default’ undeclared (first use in this function)
      mp3lameaudio.c:59: warning: implicit declaration of function `lame_set_VBR_q’
      mp3lameaudio.c:61: warning: implicit declaration of function `lame_set_bWriteVbrTag’
      mp3lameaudio.c:62: warning: implicit declaration of function `lame_init_params’
      mp3lameaudio.c:65: warning: implicit declaration of function `lame_get_framesize’
      mp3lameaudio.c:73: warning: implicit declaration of function `lame_close’
      mp3lameaudio.c: In function `MP3lame_encode_frame’:
      mp3lameaudio.c:139: `s’ undeclared (first use in this function)
      mp3lameaudio.c:147: warning: implicit declaration of function `lame_encode_buffer_interleaved’
      mp3lameaudio.c:155: warning: implicit declaration of function `lame_encode_buffer’
      mp3lameaudio.c:165: warning: implicit declaration of function `lame_encode_flush’
      mp3lameaudio.c: In function `MP3lame_encode_close’:
      mp3lameaudio.c:201: `s’ undeclared (first use in this function)
      make[1]: *** [mp3lameaudio.o] Error 1
      make[1]: Leaving directory `/home/ffmpeg/libavcodec’
      make: *** [lib] Error 2

      Anyone has an idea?

    93. Mike - June 11th, 2006 at 5:00 pm

      My files are being converted …. but they output with a 0kb file size… none of the videos work.. but they do output to that 0kb file size.. What could be the problem?

    94. Daveren - June 12th, 2006 at 5:26 am

      Also I’m not really familiar with MSYS and MinGW. Using them can I compile ffmpeg so that I can used it on Debian?

      Thanks for your help!

      Daveren

    95. Daveren - June 12th, 2006 at 5:55 am

      This seems to be the best place for information on ffmpeg. Thanks Sonke!

      I’m using Debian and I’m installing all my packages using apt-get. But I can’t figure out where the ffmpeg directory has been created. So I’m having a hard time trying to figure out how to configure ffmpeg to work with lame. Does anybody have any idea how to do this.

      Thanks in advance for any help that anybody can provide!

      Daveren

    96. nick - June 17th, 2006 at 7:43 pm

      I have some problem:
      ffmpeg -i xxx.3gp -ss 00:00:05 -t 00:00:01 -s 100×100 -r 1 -f jpeg image%d.jpg
      I got
      Unknown input or output format: jpeg

      Anyone has an idea?

    97. Sönke - June 18th, 2006 at 8:41 am

      I am not sure but try “-f mjpeg”

    98. nick - June 18th, 2006 at 9:34 am

      Thnx, it works :)

    99. 我不是小白 - July 9th, 2006 at 4:02 am

      [FLASH]Flash视频播放…

      看了土豆的视频播放,了解了一下基于Flash的视频解决方案。大致就是把各种格式的视频上传到服务器后进行转化成flv文件,然后用Flash播放。
      查了一下目前转换格式的方案,如下:
      客户端…

    100. zwei1121 - July 15th, 2006 at 7:19 am

      Flash 视频(FLV)编码,转换,录制,播放方案一网打尽…

      Flash 视频(FLV)编码,转换,录制,播放方案一网打尽…

    101. 如来 - July 21st, 2006 at 10:42 am

      Flash 视频(FLV)编码,转换,录制,播放方案一网打尽…

      Collected links to Flash Video Encoding Tools …

    102. IT快餐——–发现,分享,关注互联网 » 7-31 - July 31st, 2006 at 5:18 am

      […] http://www.xvid.org/downloads.html http://soenkerohde.com/tutorials/ffmpeg/ […]

    103. suilam - August 31st, 2006 at 7:24 am

      Flash 视频(FLV)编码,转换,录制,播放方案一网打尽…

      Flash 视频(FLV)编码,转换,录制,播放方案一网打尽…

    104. Jeyaseelan - October 11th, 2006 at 2:01 pm

      Hi,
      This surely helped me lot for working in command line to create thumnail from video files

    105. Sruthi - October 12th, 2006 at 12:53 pm

      Hi dudes,

      We need to convert video files into flash files.for this we are using ffmpeg.Can anyone suggest me how can we use ffmpeg in asp and in windows enviornment.we used riva encoder it woirked fine but we need to embed in our server so that whenever user uploads it will automatically will convert into .flv files.can anyone please guide me.

    106. niying - October 14th, 2006 at 8:03 am

      How to disable the version of the output filename?
      as:avcodec-51.17.0.dll->avcodec.dll
      In the last version it output three the same file but except the version, it must out put them? Can i only output one usefull file? THX!

    107. Meteo - October 26th, 2006 at 7:05 pm

      Luogo interessante, buon disegno, lo gradisco, signore! =)

    108. Jeff - November 1st, 2006 at 5:15 am

      Is there any way you guys could put together an “idiots guide to installing ffmpeg on windows”??
      This tutorial is all giberish to me :)

    109. Sönke - November 1st, 2006 at 3:12 pm

      Sorry but this is free information which I produced in my freetime.
      If you look for commercial consulting drop me a mail.

    110. Ferran - November 6th, 2006 at 11:29 am

      Hello! Thanks for this post I think it is very useful!
      I have a problem converting a video to FLV. The audio is not included in flv file. Below you can find the FFMPEG output:
      command: ffmpeg -i test.mpg -ab 56 -ar 22050 -b 500 -r 15 -s 320×240 test.flv

      FFmpeg version SVN-r6891, Copyright (c) 2000-2006 Fabrice Bellard, et al.
      configuration: –enable-shared –disable-static –enable-memalign-hack –enable-amr_wb –enable-amr_nb
      libavutil version: 49.0.2
      libavcodec version: 51.24.0
      libavformat version: 51.6.0
      built on Nov 6 2006 10:56:33, gcc: 3.4.5 (mingw special)
      Input #0, mpeg, from ‘test.mpg’:
      Duration: 00:00:01.8, start: 0.000000, bitrate: 1802 kb/s
      Stream #0.0[0×1e0]: Video: mpeg1video, yuv420p, 352×288, 104857 kb/s, 25.00 fps(r)
      Stream #0.1[0×1c0]: Audio: mp2, 44100 Hz, stereo, 64 kb/s
      Output #0, flv, to ‘test.flv’:
      Stream #0.0: Video: flv, yuv420p, 320×240, q=2-31, 0 kb/s, 15.00 fps(c)
      Stream mapping:
      Stream #0.0 -> #0.0 frame= 77 q=31.0 Lsize= 79kB time=5.1 bitrate= 126.4kbits/s video:78kB audio:0kB global headers:0kB muxing overhead 1.752008%

      I think AMR audio codec is properly enabled because it appears when I run “ffmpeg -formats”.

      Thanks for your help.

    111. Ferran - November 6th, 2006 at 12:06 pm

      Sorry for previous question. I solved the problem. I had not mp3 lame enabled.

    112. Simon - November 10th, 2006 at 1:25 pm

      How come when i try to execute ./configure the console says “./configure exec: bash: not found”

    113. Sönke - November 10th, 2006 at 2:21 pm

      Check the tutorial I linked at the beginning of my tutorial (Update …)

    114. YannX - November 22nd, 2006 at 10:19 am

      About Riva FLV Encoder 2.0, I’ve found a bug about ffmpeg not detecting ac3 audio format when trying to convert an mpeg to FLV vidéo.

      I’ve tried with an other ffmpeg.exe but it doesn’t accept the -hq ans the quality is really poor !!!

      Any idear ?

      Thanks in advance

    115. Sönke - November 22nd, 2006 at 8:00 pm

      -hq is not supported in the latest ffmpeg-builds.
      I am afraid this could only work if the Riva FLV Encoder get an update because -hq is set by default.

    116. YannX - November 23rd, 2006 at 10:20 am

      Thanks a lot Sönke for your quick answer !

      Yes , I’ve seen that Riva FLV Encoder put the -hq in the command line.
      For testing, I’ve remove the -hq in the file “encode.bat” generate, and then it works but the quality is really poor !!
      So I’m asking me how to keep a good quality without the -hq option …

      Thanks again.

    117. Sönke - November 23rd, 2006 at 7:55 pm

      Hi YannX,

      sorry, but I have no idea and I would recommend your ask in the ffmpeg mailing list.

    118. michael galon - December 1st, 2006 at 11:25 am

      Hi,

      Please help me. When i convert my movie file(wmv,mpg etc) to flv, it doesnt have a sound/audio. I already install LAME, mencoder. I follow this line:

      ffmpeg -i test.mpg -ab 56 -ar 22050 -b 500 -r 15 -s 320×240 test.flv

      Thanks,

      mike

    119. Sönke - December 1st, 2006 at 6:55 pm

      Please ask in the ffmpeg mailinglist.

    120. michael galon - December 1st, 2006 at 10:06 pm

      Hi,

      ok thanks, But just for an info. I think avi, wmv wont be properly converted since it is made from windows. I try to install a ffmpeg to windows and generated .flv works fine. I already triend install a LAME and MPlayer to my CENTOS box but still no sounds. Thanks anyways.

      mke

    121. Zaid Crowe - December 2nd, 2006 at 7:45 pm

      Hey Guys,
      When i got to ./configure ffmpeg from MSYS im returned the following error:

      No compatible shell script interpreter found
      The configure script requires a POSIX compatible shell such as bash or ksh
      This bash version (2.04.0.(1)-release)is broken on your platform.
      Upgrade to a later version if available.

      Im not evern sure where to start with this…anyone help :???

    122. Zaid Crowe - December 3rd, 2006 at 2:41 am

      Well…firstly thansk for a great tute…I got this working, at least locally.

      Im trying to run this from a web server now, sending the command line option using PHP.

      For some reason, its seems to work (the videos encoded!) But my browser out puts:
      CGI Error
      The specified CGI application misbehaved by not returning a complete set of HTTP headers.

      I cant work this out at alll…any help?

    123. Sönke - December 3rd, 2006 at 10:36 am

      Hi,

      I did not try it but this looks promising: http://lists.mplayerhq.hu/pipermail/ffmpeg-user/2006-October/004773.html

    124. Dominique Vergin - December 4th, 2006 at 3:11 pm

      Hi,
      thanks for this great tutorial…
      Well, i needed some days to compile ffmpeg and all the needed libraries on my Windows-Machine (cause im not familar with MSYS & MINGW).
      But now i’ve made my first stable build today (from SVN revision 7218) including avisynth-support and lame-mp3 encoding.

      Feel free to download my build here: http://vergin.org/files/FFInstall.exe

      greetings,
      Dominique ;)

    125. dosibule - December 6th, 2006 at 4:04 am

      nice job !

    126. krig - December 7th, 2006 at 9:24 pm

      LAME installed successfully, but when I try to configure ffmpeg I get error =(

      krig@KRIG-LAPTOP /ffmpeg_svn
      $ ./configure –enable-memalign-hack –enable-mingw32 –enable-mp3lame –extra-
      cflags=-I/local/include –extra-ldflags=-L/local/lib
      No compatible shell script interpreter found.
      This configure script requires a POSIX compatible shell
      such as bash or ksh.
      This bash version (2.04.0(1)-release) is broken on your platform.
      Upgrade to a later version if available.

    127. Dominique Vergin - December 8th, 2006 at 1:05 pm

      @krig: you have to use a bash > 2.04 for MSYS.
      this one works fine: bash-3.1-MSYS-1.0.11-snapshot.tar.bz2

    128. noom » Blog Archive » FFMPEG - December 16th, 2006 at 10:47 am

      […] FFMPEG Sunday 27 February 2005 @ 2:22pm […]

    129. vinayak - December 23rd, 2006 at 8:17 am

      I tried with given command but did not found audio with
      flv converted file.Can anybody help me?

    130. Paul - January 2nd, 2007 at 4:43 pm

      Please help me!!!I have successfully compiled ffmpeg, but how can I add ,ffmpeg support(ffmpeg-php) extension to my PHP 5.1.6. I am working under Windows XP. I compiled and built ffmpeg under Msys+MingW.Please help me!!!

    131. Sönke Rohde - January 2nd, 2007 at 5:46 pm

      Hi Paul,

      sorry but this is no support forum. please use the ffmpeg mailinglists for this purpose.

    132. Krishna - February 1st, 2007 at 9:17 am

      hi I am using ffmpeg in debian I stuck in a problem regarding conversion of 3gp, mov and avi. plzz tell me the proper command for linux.

    133. Sönke - February 1st, 2007 at 9:29 am

      as I am not a linux user it would make sense to ask in the ffmpeg mailinglist

    134. zubin - February 12th, 2007 at 6:41 am

      great one and the code worked too.I made thumbnails and also converted movie to .flv format

    135. ZRong and Orphen’s Blog - 正文 - 两个免费转换视频的软件,实现服务器端Video2FLV - RIA,Flash,FCS,FMS,Office,Flash Media Server,ASP.net - February 25th, 2007 at 3:59 am

      […] FFMPEG tutorial(英文) […]

    136. jonbarton.net - FFMpeg Executables in a Zip - March 7th, 2007 at 6:25 am

      […] weblink Posted on Wednesday, March 7th, 2007 at 1:58 am In Uncategorized | Comments RSS […]

    137. Andrea - March 8th, 2007 at 5:22 pm

      Hi,
      I’m trying to use ffmpeg launching it from java. Though I’m able to use it from the command line, I receive the following error from Java

      Executing c:\ffmpeg.exe -i c:\test.mov -b 40k -r 10 -s qcif -target pal-vcd c:\test.3gp
      ERROR>FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al.
      ERROR> configuration: –enable-memalign-hack –extra-cflags=-I/local/include –extra-ldflags=-L/local/lib
      ExitValue: 1
      ERROR> libavutil version: 49.3.0
      ERROR> libavcodec version: 51.38.0
      ERROR> libavformat version: 51.10.0
      ERROR> built on Mar 6 2007 12:40:35, gcc: 3.2.3 (mingw special 20030504-1)
      ERROR>c:\ffmpeg.exe: unrecognized option ‘-i c:\test.mov’

      Please help me!!

    138. Sönke - March 8th, 2007 at 6:59 pm

      sorry but this is no support forum. please use the ffmpeg mailinglists for this purpose.

    139. Kreez - April 7th, 2007 at 9:42 pm

      Hi Soenke,

      Great Work !! The info that u’ve published is helping me a lot.
      I am a newbie to video encoding - audio encoding stuff .
      I know that u’ve mentioned it a cpl of times earlier as a response that this isn’t a support forum but pls can u just write in the command to generate an flv output from two or more video[mpg ..] files using ffmpeg.

      I want to concatenate two video files and write an flv output.

      Any help would be greatly appreciated.

      Thanks in Advance.

      Kreez.

    140. Sönke - April 10th, 2007 at 4:03 pm

      I do not know the exact command and recommend searching the ffmpeg maillinglist archive. I remember that this usecase was mentioned a few times.

    141. How to convert video files to Flash video - April 12th, 2007 at 11:15 am

      […] All three use the excellent ffmpeg tool, which is available for all major operating systems. Sönke Rohde wrote a nice tutorial on how to use it to convert videos to flash video files. Although that particular tutorial is for Windows users, it is still relevant for Mac and Linux. […]

    142. Wie man Videos in Flash Videos konvertiert -