December 2008 - ffmpeg-user - lists.ffmpeg.org

WMA 9 voice codec
by reshmagude2003＠yahoo.co.in 29 Dec '08

29 Dec '08

Hello, Is WMA 9 voice audio codec supported by ffmpeg? If so, could someone point out the libraries that need to be installed in order for ffmpeg to work with WMA 9 audios? Thanks!

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how to solve invalid backstep
by sviluppo＠audiias.com 28 Dec '08

28 Dec '08

Hi guys , I have some videos , that I try to encode to another format , and I always have invalid backstep error in the shell . ffmpeg -i 72.mpg -pass 1 -s 448x336 -b 350k -cmp 3 -subcmp 3 -flags aic+cbp+mv0+mv4+trell -maxrate 2500k -bufsize 3000k -mbd 2 -g 300 -acodec libmp3lame -ab 80k -ar 44100 -ac 1 -y ../output1.flv FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2008 Fabrice Bellard, et al. configuration: --prefix=/usr --enable-shared --enable-libmp3lame --enable-gpl --enable-libfaad --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-libgsm --enable-libx264 --enable-liba52 --enable-libtheora --enable-vhook --enable-mmx --enable-libogg --enable-swscaler --enable-pp libavutil version: 49.5.0 libavcodec version: 51.45.0 libavformat version: 51.14.0 built on Sep 23 2008 04:59:36, gcc: 4.2.3 (Ubuntu 4.2.3-2ubuntu7) invalid new backstep 540 Input #0, mpeg, from '72.mpg': Duration: 00:01:47.0, start: 0.500000, bitrate: 2588 kb/s Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576, 9000 kb/s, 25.00 fps(r) Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, 192 kb/s Output #0, flv, to '../output1.flv': Stream #0.0: Video: flv (hq), yuv420p, 448x336, q=2-31, pass 1, 350 kb/s, 25.00 fps(c) Stream #0.1: Audio: libmp3lame, 44100 Hz, mono, 80 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Press [q] to stop encoding invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 5400 size= 60kB time=1.3 bitrate= 376.1kbits/s invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 5400 size= 100kB time=3.4 bitrate= 238.3kbits/s invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 5130 size= 5515kB time=100.6 bitrate= 449.0kbits/s invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 5407 size= 5548kB time=102.9 bitrate= 441.7kbits/s invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 5400 size= 5605kB time=104.9 bitrate= 437.9kbits/s invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 invalid new backstep 540 frame= 2677 fps= 64 q=2.7 Lsize= 5666kB time=107.1 bitrate= 433.4kbits/s video:4513kB audio:1046kB global headers:0kB muxing overhead 1.910008% How i can solve this problems? Best regards Pierpaolo

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Split into two
by pradhanparas＠gmail.com 28 Dec '08

28 Dec '08

Hi, I have a 1:10:05 long mpg file. I want to cut into two file. The following command is working: ffmpeg -vcodec copy -ss 00:00:00 -t 00:32:52 -i stage2.mpg part1.mpg But this is not working $ ffmpeg -vcodec copy -ss 00:32:00 -t 01:10:05 -i stage2.mpg part2.mpg The error I am getting is -- Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Press [q] to stop encoding error, non monotone timestamps 3600 >= 3600 av_interleaved_write_frame(): Error while opening file --- How to do the rest after the first part is done. Help Thanks Paras.

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Can't get pcm_s16be format
by rodolfo.medina＠gmail.com 28 Dec '08

28 Dec '08

Hi. I want my ouput in pcm_s16be audio format, but don't manage to. When I do: $ ffmpeg -i input.mpg -acodec pcm_s16be output.mpg , always the error message occurs: [mpeg @ 0x93d0a60]buffer underflow i=1 bufi=3010 size=3072e=2013.9kbits/s [mpeg @ 0x93d0a60]packet too large, ignoring buffer limits to mux it . How can I get pcm_s16be? Thanks for any help Rodolfo

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bitrate is too low in 2pass wmv2 encoding
by hsanson＠gmail.com 28 Dec '08

28 Dec '08

I am playing with 2 pass encoding of wmv2 codec but I get a "bitrate is too low" error during the second pass. ### First pass has no problems ffmpeg -i AKB48.avi -s 640x480 -deinterlace -g 250 -async 50 -an -vcodec wmv2 -b 1900k -pass 1 -passlogfile out.log -f asf -y /dev/null FFmpeg version SVN-r16263, Copyright (c) 2000-2008 Fabrice Bellard, et al. configuration: --enable-gpl --enable-libx264 --enable-libamr-wb --enable-libamr-nb --enable-nonfree --enable-libfaac --enable-libfaad --enable-libtheora --enable-libvorbis --enable-encoder=g726 --enable-swscale --enable-encoder=ljpeg --enable-encoder=mjpeg --enable-libmp3lame --prefix=/usr --enable-pthreads --enable-libdirac libavutil 49.12. 0 / 49.12. 0 libavcodec 52. 8. 0 / 52. 8. 0 libavformat 52.23. 1 / 52.23. 1 libavdevice 52. 1. 0 / 52. 1. 0 libswscale 0. 6. 1 / 0. 6. 1 built on Dec 22 2008 15:28:11, gcc: 4.3.2 Input #0, avi, from 'AKB48.avi': Duration: 00:00:30.03, start: 0.000000, bitrate: 30348 kb/s Stream #0.0: Video: dvvideo, yuv411p, 720x480, 29.97 tb(r) Stream #0.1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Output #0, asf, to '/dev/null': Stream #0.0: Video: wmv2, yuv420p, 640x480, q=2-31, pass 1, 1900 kb/s, 29.97 tb(c) Stream mapping: Stream #0.0 -> #0.0 Press [q] to stop encoding frame= 900 fps=103 q=2.8 Lsize= 0kB time=30.03 bitrate= 0.0kbits/s video:6989kB audio:0kB global headers:0kB muxing overhead -99.999986% ### Second pass has error ffmpeg -i AKB48.avi -s 640x480 -deinterlace -g 250 -async 50 -an -vcodec wmv2 -b 1900k -pass 2 -passlogfile out.log -f asf -y AKB48.wmv FFmpeg version SVN-r16263, Copyright (c) 2000-2008 Fabrice Bellard, et al. configuration: --enable-gpl --enable-libx264 --enable-libamr-wb --enable-libamr-nb --enable-nonfree --enable-libfaac --enable-libfaad --enable-libtheora --enable-libvorbis --enable-encoder=g726 --enable-swscale --enable-encoder=ljpeg --enable-encoder=mjpeg --enable-libmp3lame --prefix=/usr --enable-pthreads --enable-libdirac libavutil 49.12. 0 / 49.12. 0 libavcodec 52. 8. 0 / 52. 8. 0 libavformat 52.23. 1 / 52.23. 1 libavdevice 52. 1. 0 / 52. 1. 0 libswscale 0. 6. 1 / 0. 6. 1 built on Dec 22 2008 15:28:11, gcc: 4.3.2 Input #0, avi, from 'AKB48.avi': Duration: 00:00:30.03, start: 0.000000, bitrate: 30348 kb/s Stream #0.0: Video: dvvideo, yuv411p, 720x480, 29.97 tb(r) Stream #0.1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Output #0, asf, to 'AKB48.wmv': Stream #0.0: Video: wmv2, yuv420p, 640x480, q=2-31, pass 2, 1900 kb/s, 29.97 tb(c) Stream mapping: Stream #0.0 -> #0.0 [wmv2 @ 0xa1b0200]requested bitrate is too low Error while opening codec for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height Is it possible to do two pass encoding with wmv2 encoder?? regards, Horacio

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unknown file type `raw`
by ryanlists＠gmail.com 27 Dec '08

27 Dec '08

I am trying to use ffmpeg with a simple dvd-slideshow example, but am getting this error: [dvd-slideshow] No audio files passed. Using 0:0:20.020 silence. [dvd-slideshow] Working on track 1 audio file 0 [dvd-slideshow] silence [dvd-slideshow] Creating silence audio file for 0:0:20.020 [dvd-slideshow] This audio plays in slideshow from 0:0:0.000 to 0:0:20.020 [dvd-slideshow] ############### [dvd-slideshow] Concatenating all audio files... [dvd-slideshow] Creating ac3 audio... FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al. configuration: --enable-gpl --enable-pp --enable-swscaler --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libogg --enable-libgsm --enable-dc1394 --disable-debug --enable-shared --prefix=/usr libavutil version: 1d.49.3.0 libavcodec version: 1d.51.38.0 libavformat version: 1d.51.10.0 built on Jul 23 2008 22:38:24, gcc: 4.2.3 (Ubuntu 4.2.3-2ubuntu7) Input #0, wav, from 'output_directory/dvd-slideshow_temp_27214/audio1.wav': Duration: 00:00:20.0, start: 0.000000, bitrate: 1536 kb/s Stream #0.0: Audio: pcm_s16le, 48000 Hz, stereo, 1536 kb/s Output #0, ac3, to 'output_directory/dvd-slideshow_temp_27214/audio1.ac3': Stream #0.0: Audio: ac3, 48000 Hz, 5:1, 0 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 [dvd-slideshow] ERROR during ffmpeg execution! [dvd-slideshow] see output_directory/dvd-slideshow.log for details [dvd-slideshow] cleanup... I am not trying to add audio yet. Here is my version information: ryan at ryan-duo-laptop:~/Pictures$ ffmpeg --version FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al. configuration: --enable-gpl --enable-pp --enable-swscaler --enable-pthreads --enable-libvorbis --enable-libtheora --enable-libogg --enable-libgsm --enable-dc1394 --disable-debug --enable-shared --prefix=/usr libavutil version: 1d.49.3.0 libavcodec version: 1d.51.38.0 libavformat version: 1d.51.10.0 built on Jul 23 2008 22:38:24, gcc: 4.2.3 (Ubuntu 4.2.3-2ubuntu7) ffmpeg: missing argument for option '--version' I am running Ubuntu 8.04. What do I do to diagnose and fix this? Thanks, Ryan

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Recommended FFmpeg encoding for Windows Media Player and MacOs
by jm＠poure.com 27 Dec '08

27 Dec '08

Found the answer: http://ffmpeg.mplayerhq.hu/compat.html Discard my last message.

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Recommended FFmpeg encoding for Windows Media Player and MacOs
by jm＠poure.com 27 Dec '08

27 Dec '08

Dear Friends, What would be the perfect command lines to encode to formats directly readable in MacOs and Windows Media Player without additional codecs? This is for adding to Kdenlive rendering format. Any input is appreciated, as I haven't run Windows for ages and thus have no way to proof or test. Kind regards, Jean-Michel

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How to encode into DIRAC with VORBIS sound?
by jm＠poure.com 27 Dec '08

27 Dec '08

ffmpeg -i capture054.m2t -acodec vorbis -ab 128k -ar 44100 -vcodec libdirac -qscale 70 untitled.ogg does not work. FFmpeg is compiled with all needed DIRAC libraries. Any idea? Kind regards, Jean-Michel

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Con(cat)enate two mpg files
by rodolfo.medina＠gmail.com 27 Dec '08

27 Dec '08

Hi all. I do: $ ffmpeg -i minpian.wav -i minpian.m2v -target dvd -acodec pcm_s16be -b 8000k -s 720x576 -ab 1536k -ac 2 -r 25 minpian.mpg $ cat minpian.mpg movie.vob > total-movie.mpg , but when I play total-movie.mpg with Mplayer a noise is heard as soon as the second part begins. (The noise at once disappears hitting an arrow key on the keyboard.) Here's the ouput of `ffmpeg -i movie.vob': Input #0, mpeg, from 'movie.vob': Duration: N/A, start: 556.163678, bitrate: N/A Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], 8000 kb/s, 25.00 tb(r) Stream #0.1[0xa0]: Audio: pcm_s16be, 48000 Hz, stereo, s16, 1536 kb/s , and here's the output of 'ffmpeg -i minpian.mpg': Input #0, mpeg, from 'minpian.mpg': Duration: 00:00:10.00, start: 0.500000, bitrate: 1838 kb/s Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], 9000 kb/s, 25.00 tb(r) Stream #0.1[0xa0]: Audio: pcm_s16be, 48000 Hz, stereo, s16, 1536 kb/s Please help. Thanks Rodolfo

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