October 2005 - ffmpeg-user - lists.ffmpeg.org

compile error (FC4)
by faustnijhuis＠xs4all.nl 05 Oct '05

05 Oct '05

Hello all, I try to compile ffmpeg because this is necessary when I want to compile lve (http://lvempeg.sourceforge.net/) (There is an rpm for klvemkdvd but not for lve) But after (in directory ffmpeg-0.4.9-pre1) ./configure make I get the following error: make -C libavcodec all make[1]: Entering directory `/home/faust/downloads/ffmpeg-0.4.9-pre1/libavcodec' gcc -O3 -g -Wall -DHAVE_AV_CONFIG_H -I.. -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE -c -o common.o common.c In file included from avcodec.h:14, from common.c:28: common.h:67: error: array type has incomplete element type common.h:71: error: array type has incomplete element type make[1]: *** [common.o] Error 1 make[1]: Leaving directory `/home/faust/downloads/ffmpeg-0.4.9-pre1/libavcodec' make: *** [lib] Error 2 Faust PS My system is Fedora core 4

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dvb support
by leo＠dicea.unifi.it 04 Oct '05

04 Oct '05

with ffmpeg is possible to give a stream as "dvb://StationName" is possible to have a similar option with ffmpeg, so i can save a trasmission, and possibly stream via ffmpeg ? -- Leonardo Boselli Nucleo Informatico e Telematico del Dipartimento Ingegneria Civile Universita` di Firenze , V. S. Marta 3 - I-50139 Firenze tel +39 0554796431 cell +39 3488605348 fax +39 055495333 http://www.dicea.unifi.it/~leo

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conceiling
by Philippe.deneve＠intec.ugent.be 04 Oct '05

04 Oct '05

Hi all, where can I find more information on the error conceilment techniques used for decoding damaged MPEG-2/4 files? regards, Philippe.

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null video output?
by ski＠mediamatters.org 04 Oct '05

04 Oct '05

Howdy. I have a situation where I want to take a video file, strip the audio out, and then pipe it to another program that does something to the audio. But there is neither a "null" nor "none" vcodec on ffmpeg, and I can't specify the output format as wav or what have you, since I don't have an output file. Is there a way to do this without hacking the source or using a named pipe? Thanks in advance for your help, Brian Szymanski Software and Systems Developer Media Matters for America ski at mediamatters.org cell: 202.243.9007 work: 202.756.4128 home: 202.470.2578 skype: xbrianskix aim: xbrianskix

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MOV to FLV no audio
by dimush＠gmail.com 04 Oct '05

04 Oct '05

Hi Griff, Did you ever figure out the problem with audio not being converted in FLV file? I have a similar sisue with the 3gp -> FLV conversion: ffmpeg -i in.3gp -hq -acodec mp3 -ar 44100 -ab 64 -f flv -s 320x240 -aspect 4:3 -y out.flv The video converts fine, but the audion does not at all: ffmpeg version 0.4.9-pre1, build 4718, Copyright (c) 2000-2004 Fabrice Bellard built on Oct 3 2005 09:37:22, gcc: 2.96 20000731 (Red Hat Linux 7.3 2.96-113) Input #0, mov,mp4,m4a,3gp, from 'converted-dmitriysucks.3gp': Duration: 00:00:05.7, bitrate: 120 kb/s Stream #0.0: Audio: 0x726d6173, 8000 Hz, mono Stream #0.1: Video: h263, 176x144, 15.18 fps Output #0, flv, to 'converted-dmitriyrocks.flv': Stream #0.0: Video: flv (hq), 320x240, 15.18 fps, q=2-31, 200 kb/s Stream mapping: Stream #0.1 -> #0.0 Press [q] to stop encoding frame= 46 q=5.6 Lsize= 134kB time=3.0 bitrate= 361.3kbits/s video:133kB audio:0kB global headers:0kB muxing overhead 0.550213% Thank you, Dmitriy --------------------------------------- Hello: When trying to use ffmpeg to convert a ".mov" file to a ".flv" file, I get no audio on the converted file. I used the Unix command: ffmpeg -i pict005.mov pict005.flv This command produced the following output: ffmpeg version 0.4.9-pre1, build 4752, Copyright (c) 2000-2004 Fabrice Bellard configuration: built on Apr 13 2005 14:37:48, gcc: 3.3.3 20040412 (Red Hat Linux 3.3.3-7) Input #0, mov,mp4,m4a,3gp,3g2, from 'pict005.mov': Duration: 00:01:01.8, start: 0.000000, bitrate: 269 kb/s Stream #0.0: Video: mjpeg, 320x240, 24.00 fps Stream #0.1: Audio: pcm_u8, 7812 Hz, mono, 62 kb/s Output #0, flv, to 'pitc005.flv': Stream #0.0: Video: flv, 320x240, 24.00 fps, q=2-31, 200 kb/s Stream mapping: Stream #0.0 -> #0.0 Press [q] to stop encoding frame= 114 q=0.0 Lsize= 230kB time=4.8 bitrate= 396.4kbits/s video:228kB audio:0kB global headers:0kB muxing overhead 0.786693% I've also tried specifying "-acodec pcm_u8" to ffmpeg, and I've tried first converting to a ".avi" file. The ".avi" file has an audio channel, but it's white noise. The ".mov" file I used is available at http://x27.quik.com/~hamlin/pict005.mov. I can view and hear this file using 'mplayer'. Any suggestions on this problem would be greatly appreciated. Griff

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OS/X 10.4 vhook build error + workaround
by sms＠2BSD.COM 01 Oct '05

01 Oct '05

Hi - If you get this error: make -C vhook all cc -fPIC -O3 -g -Wall -Wno-switch -no-cpp-precomp -pipe -fomit-frame-pointer -force_cpusubtype_ALL -Wno-sign-compare -faltivec -I.. -I'/usr/local/src/ffmpeg' -I'/usr/local/src/ffmpeg'/libavformat -I'/usr/local/src/ffmpeg'/libavcodec -I'/usr/local/src/ffmpeg'/libavutil -DHAVE_AV_CONFIG_H `freetype-config --cflags` -c -o null.o null.c null.c: In function 'Process': null.c:59: warning: pointer targets in passing argument 2 of 'avpicture_fill' differ in signedness cc -Wl,-dynamic,-search_paths_first -dynamiclib -Wl,-single_module,-undefined,dynamic_lookup -flat_namespace -Wl,-install_name,/usr/local/lib/vhook/null.dylib -g -o null.dylib null.o ld: flag: -undefined dynamic_lookup can't be used with MACOSX_DEPLOYMENT_TARGET environment variable set to: 10.1 /usr/bin/libtool: internal link edit command failed make[1]: *** [null.dylib] Error 1 The "fix" for 10.4.x is to do this prior to 'make': setenv MACOSX_DEPLOYMENT_TARGET 10.4 Seems the default in 'ld' is to build for 10.1. I don't have any 10.3 systems around so I don't know if a similar fix is needed there. Cheers, Steven Schultz

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timelapse from jpg to mpeg4
by gavin.jensen＠gmail.com 01 Oct '05

01 Oct '05

I am new to linux and ffmpeg. I am trying to convert a series of photos taken by my webcam into a well compressed mpeg4 movie. Here is what I thought would work but did not. ffmpeg -i photo_%03d.jpg -vcodec msmpeg4 testOutput.avi ffmpeg version 0.4.9-pre1, build 4738, Copyright (c) 2000-2004 Fabrice Bellard configuration: --build i386-linux --enable-gpl --enable-pp --enable-zlib --enable-vorbis --enable-a52 --enable-dts --disable-mmx --disable-debug --prefix=/usr built on Feb 5 2005 01:20:01, gcc: 3.3.5 (Debian 1:3.3.5-6ubuntu1) Input #0, image2, from 'photo_5%03d.jpg': Duration: 00:00:04.0, start: 0.000000, bitrate: N/A Stream #0.0: Video: mjpeg, 640x480, 25.00 fps File 'testOutput.avi' already exists. Overwrite ? [y/N] y Output #0, avi, to 'testOutput.avi': Stream #0.0: Video: msmpeg4, 640x480, 25.00 fps, q=2-31, 200 kb/s Stream mapping: Stream #0.0 -> #0.0 [msmpeg4 @ 0x82d0e1c]colorspace not supported Error while opening codec for stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height Does anyone know what I am doing wrong? Any help would be appreciated. Thanks!! Gavin

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