network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 1 year, 5 months |
| seen | 14 hours ago | |
| stats | profile views | 5 |
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May 18 |
comment |
ffmpeg: how to losslessly encode many jpg images to a video? The hashes were included only to show you that the frames are the same as the individual images, so therefore achieving your requirement of storing "each individual jpg frames as-is (without recompression)". |
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May 17 |
revised |
ffmpeg: how to losslessly encode many jpg images to a video? add links |
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May 17 |
answered | ffmpeg: how to losslessly encode many jpg images to a video? |
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Apr 6 |
comment |
avconv screen recording to FLV, audio drifts out of sync Unfortunately the PPA does not offer the latest builds. |
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Mar 26 |
comment |
Proper way to wear Grado headphones? I have some old Alessandro-Grados (but with the "soft" earpads) and I lessen the "clampyness" of the metal headband by gently pulling drivers away from each other, or push them together to tighten. |
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Mar 15 |
comment |
Is it possible to encode video using the same codec and container but different parameters for different scenes? No need to use two-passes. See the FFmpeg and x264 Encoding Guide; specifically the section on using a constant rate factor (CRF) for examples and more information. All you need to do is pick your crf value which controls your quality, and your encoding preset which controls your encoding speed/compression efficiency. |
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Mar 13 |
answered | How to convert video for viewing on Sony Ericsson C702? |
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Mar 12 |
comment |
How to convert video for viewing on Sony Ericsson C702? Devices are often picky, so it's always trial and error. Try: ffmpeg -i input -vf scale=320:-1 -c:v mpeg4 -b:v 400k -c:a aac -strict experimental -b:a 32k -ar 16000 -ac 1 output.mp4 You didn't include the complete console output as requested so I can not give you a better AAC encoder suggestion, and the native FFmpeg AAC encoder is poor at low bitrates. |
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Mar 12 |
comment |
How to convert video for viewing on Sony Ericsson C702? Do you have a video that does work with this phone? Providing details on the video using ffmpeg will provide useful info. Include the complete output of ffmpeg -i input. |
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Mar 12 |
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Good Intermediate Format for Combining Videos Please show some details on an example png file. The complete output of ffmpeg -i input.png will suffice. |
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Mar 6 |
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How to get FFMPEG to join non-sequential image files? (skip by 3s) Did you actually test this command? I don't think -pattern_type glob works with %04d.png and will probably result in Could not open file : %04d.png. |
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Mar 2 |
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avconv screen recording to FLV, audio drifts out of syncavconv is buggy. Have you tried a recent static build of ffmpeg? The actual, unscripted command and the complete console output from ffmpeg would be useful if it also does not work as expected. |
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Feb 24 |
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OGV Format plays properly on my computer but transcoding drops (duplicate?) frames Unless I'm missing something this is probably a bug or lack of ogg feature support in ffmpeg and/or a bug in recordmydesktop (that ffmpeg hasn't made a special case for). A bug report may be the best option here. Make sure to use the latest ffmpeg version you can, show your ffmpeg command and complete console output, provide sync_test1.ogv, and try to show the problem using only native encoders (no lib* such as libx264) if possible. |
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Feb 24 |
comment |
OGV Format plays properly on my computer but transcoding drops (duplicate?) frames Adding -r 15 is the same as omitting it because ffmpeg will inherit the input frame rate by default, and the resulting output files, with or without -r 15 are exactly the same with ffmpeg from git head (version N-50285-gad89952). If it is working for you using an older ffmpeg version this could be a regression and should be reported to the FFmpeg bug tracker. |
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Feb 20 |
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OGV Format plays properly on my computer but transcoding drops (duplicate?) frames The original file is Theora video and Vorbis audio in ogv container. Amir T is not re-encoding to this format, as far as I know, but when he attempts to re-encode the original with either ffmpeg or YouTube the sync problem manifests. |
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Feb 19 |
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OGV Format plays properly on my computer but transcoding drops (duplicate?) frames Can you provide a sample input file that the problem can be reproduced with? |
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Feb 17 |
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OGV Format plays properly on my computer but transcoding drops (duplicate?) frames Does the issue still occur if you use a recent static build of ffmpeg? This will rule out any potential bugs that you may be encountering that have already been fixed with a newer version of ffmpeg. No need to install or anything. Just download, extract the archive, and then execute the included ffmpeg binary. |
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Jan 22 |
comment |
Where I find tips for sound in videos? Buy a separate mic. You can connect it to your main camera so you don't have to sync it manually later. Avoid the camera mic if possible. Make your own "dead cat" to cut wind noise. |
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Jan 17 |
comment |
Cheap solution to shoot during several hours at night? ZoneMinder would be worth a try. |
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Jan 17 |
awarded | Necromancer |
