Problem encoding to .flv - produces Zero KB file in one sec ?!

[toki4004]

Hi all. I just installed FF, no errors. Trying to encode .mov into flash video. I select the video, pick my settings, etc., press Encode, and it's done in one sec with a 0KB file. Original .mov file is 20MB 3 min long. Any idea why this is happening?

Thanks!

[toki4004]

I turned off audio, so simplify things a bit, here is what I get when I look at details (blue 'i'):

FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Thu Jan 8 13:05:47 CST 2009
Mac OSX universal build for ffmpegX
libavutil version: 49.0.0
libavcodec version: 51.9.0
libavformat version: 50.4.0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x5597b8]negative ctts, ignoring
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/tatiana/Desktop/IntroToApp.mov':
Duration: 00:03:00.4, start: 0.000000, bitrate: 930 kb/s
Stream #0.0(eng): Audio: aac, 44100 Hz, stereo
Stream #0.1(eng), 30.00 fps(r): Video: h264, yuv420p, 1024x768
Codec type mismatch for mapping #0.0 -> #0.0

[tomlee59]

Try clicking "invert mapping" in the audio tab. That might fix it for you.

Good luck!

[toki4004]

- It now says "Failed"

Encoding started on Thu Jan 8 13:41:52 CST 2009
FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
libavutil version: 49.0.0
libavcodec version: 51.9.0
libavformat version: 50.4.0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x5597b8]negative ctts, ignoring
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/tatiana/Desktop/IntroToApp.mov':
Duration: 00:03:00.4, start: 0.000000, bitrate: 930 kb/s
Stream #0.0(eng): Audio: aac, 44100 Hz, stereo
Stream #0.1(eng), 30.00 fps(r): Video: h264, yuv420p, 1024x768
Output #0, flv, to '/Users/tatiana/Desktop/IntroToApp.mov.ff.avi.flv':
Stream #0.0, 29.97 fps(c): Video: flv, yuv420p, 1024x768, q=2-15, 940 kb/s
Stream #0.1: Audio: mp3, 48000 Hz, stereo, 128 kb/s
Stream mapping:
Stream #0.1 -> #0.0 [sync #0.0]
Stream #0.0 -> #0.1 [sync #0.1]
[mp3 @ 0x54340c]flv doesnt support that sample rate, choose from (44100, 22050, 11025)
Could not write header for output file #0 (incorrect codec parameters ?)
bench: utime=0.013s
/Applications/ffmpegX_0.0.9y/ffmpegX.app//Contents/Resources/flvtool2:2:in `require': no such file to load -- flvtool2 (LoadError)
from /Applications/ffmpegX_0.0.9y/ffmpegX.app//Contents/Resources/flvtool2:2

[tomlee59]

Well, why don't you follow the directive the logfile is giving you (right above your highlighted line)?

[toki4004]

Thanks for the tip (doh! )

But now it produces blank files

I used VisualHub, and that works better...

Thanks for your help!

[tomlee59]

Could you post the logfile for this latest attempt? And how big is the file that is produced? Is it still 0kB?

If it's a more or less normal-sized file, it could be ok, but there might be a playback problem. What player did you use to view it?

And yes, VisualHub is a great tool!

[JoeBoldt]

I am having the same issue. Here is my output:
Encoding started on Fri Jan 23 17:10:04 PST 2009
FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
libavutil version: 49.0.0
libavcodec version: 51.9.0
libavformat version: 50.4.0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x4701fc]negative ctts, ignoring
Seems that stream 1 comes from film source: 2997.00 (2997/1) -> 29.97 (30000/1001)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/joeboldt/Documents/bizqwick/master gardeners/Master Gardener Segments/Eugenia_Psyllid.mov':
Duration: 00:07:57.5, start: 0.000000, bitrate: 2763 kb/s
Stream #0.0(eng): Audio: pcm_s16le, 48000 Hz, stereo, 1536 kb/s
Stream #0.1(eng), 29.97 fps(r): Video: h264, yuv420p, 600x400
Codec type mismatch for mapping #0.0 -> #0.0

It does convert to other formats.

Thanks for any help

[tomlee59]

You didn't say whether you tried the suggestions already offered.

[Case]

Codec type mismatch for mapping #0.0 -> #0.0

Converting to FLV doesn't play nice with 'Invert mapping' in ffmpegX.
Try reversing the streams in QuickTime Pro before converting, so that 'Invert mapping' won't be needed.

[JoeBoldt]

Okay, invert mapping did the trick. Just took me a while to find the check box!

Anyway, it generated the file correctly - thank you very much. Now if I can just get it to play on the web site.

[Case]

Now if I can just get it to play on the web site.

Check out Jeroen Wijering's FLV Player, a Flash file that links to FLV files of your choosing, and presents a player interface on a web page.