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0

That looks like a zip of a DVD. Extract the contents and save them to a DVD, or make a .iso image, VLC can play .isos


2

You must first set the zoom factor, as by default it is set to 1.0. I was able to do so like this: ffmpeg -loop 1 -i image_1.jpg -vf "zoompan=z='if(lte(zoom,1.0),1.5,max(1.001,zoom-0.0015))':d=125" -c:v libx264 -t 5 -s "800x450" zoomout.mp4 Which will start zoomed in at 1.5 and zoom out 0.0015 every iteration. Note the value 1.001 was used (any value ...


1

Install Dropbox in both of them. In the Android equipment enable the option that automatically uploads pictures/videos whenever is on wifi.


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There are many apps that will synchronise files on a schedule or trigger (for example sync when connected to this wifi ssid and when charging). You will need to provide a way for your phone to talk to your desktop. I can see that ssh or CIFS would do fine.


1

LPChip is right 100%. Personally. I think 1 high end card that is a better option. It will last longer, and higher end cards now normally support 4 outputs, not just 3. When you have 2 cards, if 1 fails in a year or 2, good luck finding that same card again. Cost, why spend 150 for 2 weak cards, when you can have 1 decent card for 50 more bucks. So to ...


3

Method 1: Fixed size scale with padding: ffmpeg -i inputfile.mov -filter_complex 'scale=578:462, pad=720:576:71:57' outputfile.mp4 This assumes SD PAL size input and output. This simply uses a fixed size pad. Method 2: Percentage scaling with overlay on top of black generated by filter: ffmpeg -y -i inputfile.mov -f lavfi -i color=c=black:s=1920x1080 ...


0

I found a video explaining how to put a border over a video in iMovie. Here's how you can do it: Use Gimp (or another tool) to create an image with black borders around it. Make sure that this image is larger than the size of the video you want to put a border around. Open iMovie and import both the clip and the border image. Open iMovie > Preferences and ...


2

I have not personally tested the following suggestions. You should be able to add the m prefix before the URL, which would allow you to view the video without flash. Example: m.facebook.com The following Firefox extension might also do the job, I have not tested this. Video Without Flash Extension


2

A bit hacky, but: for f in *.avi; do echo "Testing $f" ffmpeg -i "$f" 2>&1 | awk '/Duration/ { split($2,a,":"); exit a[1]*3600+a[2]*60+a[3] < 30 ? 3 : O }' [[ $? -eq 3 ]] && rm -i -- "$f" done This assumes you have ffmpeg installed. rm will ask you before removing a file, but you can remove the -i if you're sure it does what you ...


1

The problem arises due to 64bit png. Use this to solve the problem in method 1: convert -size 1280x720 xc:transparent -background transparent -channel RGBA -fill '#0FF8' -draw 'polygon 200, 600, 200, 20, 600, 50, 600, 50' -fill '#0008' -draw 'polygon 200, 660, 200, 40, 660, 70, 660, 70' -fill '#fFF8' -draw 'polygon 200, 500, 200, 00, 500, 30, 500, 30' ...


0

That's quite easy: Use ffmpeg: ffmpeg -i yourfile.avi -c:v copy -c:a mp3 yournewfile.avi will e.g. create a new file, where the video track is simply copied, while the audio track is converted to MP3. ffmpeg -i yourfile.avi -vn -c:a mp3 yournewfile.mp3 will extract the audio track only in MP3 format. EDIT A possible workflow for replacing the ...


0

Seems like ffmpeg can't very well handle overlay of blurred semi-transparent primitives of different color. Workaround I've come up with: Create several videos. One for each color you need. Overlay them over background video sequentialy. To illustrate this let's create image with 3 overlayed triangles of different color. And an image with solid red ...


0

I had a similar problem with VLC not playing 4k videos on my pc (fx8350, 2x970 sli!). Simple fix was to turn off sharpen and now it works perfect. I was messing with codec settings, D3D and buffers and all that kind of stuff for ages and nothing was working.. I didn't think something like the sharpen option in effects and filters would have such an ...


1

I do not know what parameters the TV needs to have to do this (I only have one to try with), but you might be able to improve the detail in dark areas and contrast. Specifically for an Asus GTX 660 Ti and Sony Bravia KDL-32W5500, there is a setting in the NVIDIA control panel under "Display"->"Adjust desktop colour settings": "Dynamic range". Set it to ...


6

I’d like to know, in today’s digital world, we usually save our video as computer formats in hard disks. Assume that we regularly keep moving/copying the video files to new drives to avoid failing drives as well as doing backup to the video files. And assume no loss of the files because of failing hardware during the time. Could the video also ...


1

What is likely happening, as you can make out the faint display, is that the backlight of the monitor is failing. That may be a florescent tube or LED. Try connecting only that monitor to your system and cycle a few times between power saving and on. If the behavior persists then it is very likely a hardware problem. I am assuming it is a flat-screen ...


0

A Video card does affect video playback... but, your issues were probably more down to CPU and drive I/O. If you had a 10Gb file, I am guessing it was most likely 4k or uncompressed 1080P (or compressed/high bit rate). A Celeron is typically a low end processor, and with low end processors come low end 5400 RPM (or god help you, 4800 RPM) hard drives, ...


1

Are the files really getting their size changed? Make sure you are comparing their sizes with the same program, that the program does not round file sizes to different units, and that you are seeing actual file size, and not "Size on disk", which accounts for compression, sector alignment, etc., and could be different on different disks. If they are ...


0

-acodec copy implies that you maintain the audio codec. Also, if your PS3 cannot keep up with the video codec, I would recommend converting everything. The loss of quality in the conversion is usually negligible for video playback. Try this: ffmpeg -i in.mkv -c:v libx264 -c:a libvo_aacenc -b:v 35M -b:a 224k out.mp4 NOTE this values are quite high to ...


1

That basically means you need AUX input for both monitors, as HDMI for a PC is not normally audio carrying. You can of course test this if your PC connected via HDMI works with audio although I very much doubt this. You basically need a headphone AUX cable to headphone AUX cable as below: However it depends on what outputs you have on your PC, if you ...


0

I posted a longish answer on: How to create an uncompressed AVI from a series of 1000's of PNG images using FFMPEG vcodec libx264rgb with -preset ultrafast -qp 0, or utvideo.


2

slhck is correct if we're talking about complex video codecs with motion vectors (edit: actually, any kind of intra or inter prediction). You could modify a h.264 stream by re-encoding only the macroblocks in the area you want to replace with your logo. Logo in I frames, skip blocks in P and B frames. But any time the camera panned, there would be nearby ...


0

If you're putting a video on the web, you can use HTML5's video loop attribute: http://www.w3schools.com/tags/att_video_loop.asp e.g. http://cordes.ca/Working/clip.html, which loops a short x264-encoded slo-mo clip from the musical Working. See also Convert video to apng/png? AFAICT, there are no video container formats (e.g. mp4, mkv, avi, nut, ogm) ...


1

apng / mng never gained much support. ffmpeg can decode animated png, but can only create animated gif and webp. (No other ffmpeg output formats support a loop flag in the container, as far as I can tell, not even nut, mkv, or ogg.) webp is the current animation-supporting image format that's trying to gain traction. With google behind it, there's a good ...


0

Try 64bit Linux. Or maybe just an amd64 kernel and a 64bit static mplayer binary to test things out without reinstalling. On x86 / x86-64, code running in 64bit mode is significantly more efficient, because backwards compat with ancient x86 calling conventions isn't needed. And more importantly for multimedia, twice as many normal and SSE (xmm) registers. ...


0

Yes, mpeg transport streams can simply be concatenated as you do it. Reference: https://trac.ffmpeg.org/wiki/Concatenate


1

So I ended up making my own answer too long. TL;DR summary: use libx264 or libx264rgb with -preset ultrafast -qp 0. It's nearly as fast as ffvhuff, with much lower bitrate, and decodes faster. huffyuv is much more widely supported outside of ffmpeg, but doesn't support as many pixel formats as ffvhuff. So that's another reason to use h.264, assuming your ...


1

The solution was simply to update to a newer build of ffmpeg. With the latest git build as of 13/01/2015, this was no longer an issue. Using an alternative aac encoder also worked, but updating to a newer build is probably the better solution overall.


0

Yes, you can. We do it all the time. Note that you will need power separately or you will need to use one pair on the CAT for power and one pair for video. Length of cable will matter but quality CAT cable up to about 100'should be no issue. The adapters you want look like these: http://www.amazon.com/Pairs-Passive-Video-Power-Transceiver/dp/B0063XSLB8 ...


0

This seems to be Samsung's 4K / UltraHD demo video files -- one 4K / UHD movie split into four files. Others Most UHD / 4K video producers uses "standard" approach. They're encode video in 4096x2304 (FullUHD / Full4K?) or 3840x2160 (UHDReady / 4KReady?) resolution in a standard multimedia container like .mp4 or .mkv. You only need a one file and a standard ...


0

I just needed to do this myself. Your unanswered question helped. Here's what I did: vlc c:\file1.avi file2.avi --sout "#gather:std{access=file,dst=newFile.avi}" --sout-keep The example on the VLC wiki page you linked is mux-ing .ps into .ts. I dropped the mux altogether as it wasn't needed in my case. Then pointed it to a destination (dst=) ...


0

You can usually fix this by creating a new copy of the video without re-encoding: ffmpeg -i input -c:v copy -c:a copy output Then try generating your thumbnails from the new video.


1

No, ffmpeg can't do that, as the second to nth video file will start at completely random positions within the bytestream. You have to concatenate the video. Theoretically, if your videos were just raw H.264 bitstreams, then it might be possible to seek to the first frame and then decode it, but any regular command line tool like ffmpeg will fail to read ...


0

Little-known trick. You can insert bookmarks into the video, then use them as triggers to fire animation events. How: After inserting the video, while it's selected, move the "scrub" bar to the position where you want the animation to occur. Then on the ribbon, Playback tab, click Add Bookmark. A little yellow dot appears below the video. That's your ...


1

Use this: ffmpeg -y -i in.mkv -filter_complex "extractplanes=y+u+v[y][u][v]; \ [y]histeq=strength=0.3:intensity=1[lumaeq]; \ [lumaeq][u][v]mergeplanes=0x001020:yuv420p[out]" -map "[out]" out.mkv The extractplanes filter needs to extract each channel (y+u+v[y][u][v]), which can later be combined with mergeplanes. Note that I stated format of ...


0

The RTP: missed 1 packets message is a clue that you have some data missing from your stream. Try to add -rtsp_transport tcp before -y option to use TCP instead of UDP.


0

Disable the AMD graphic card. Run Premiere Pro from that config. Enable AMD card again.


1

If your camera is ONVIF (Open Network Video Interface Forum) compatible, then the open source ONVIF Device Manager might help: ONVIF Device Manager is a Network Video Client (NVC) to manage Network Video Transmitters (NVT), Network Video Storage (NVS) and Network Video Analytics (NVA) devices. Implements Discovery, Device, Media, Imaging, Analytics, ...


2

If the output looks too blocky or pixelated, that's due to a too low bitrate. I see you set 500 kBit/s, but that's much too low for achieving reasonable quality with video at 720p or above. The VP8 encoding guide lists a few options you have when using the libvpx encoder. I agree with you that using a constant rate factor is the correct approach to ...


1

This is a software named Synthesia that combines with screen recording software. Make songs with MIDI format and use Synthesia to read it, then you will get the results in the picture you attached. You can grab Synthesia at http://www.synthesiagame.com/ (Official Site)


0

You might want to use a faster lossless codec that will take more temporary space, like ffvhuff or something, if you have fast disks. Otherwise, use -preset ultrafast with -crf 0. (same as -qp 0, enables lossless mode.) x264 slow only compresses a tiny better than superfast in lossless mode, BTW. Maybe if you had animation with some bit-identical blocks ...


3

ffmpeg -i log.ogv -i 2.m4v -i 1.mp4 -filter_complex \ "[0:v]setpts=PTS-STARTPTS[v0]; \ [1:v]scale=-2:1080,pad=1920:ih:(ow-iw)/2:0,setsar=1/1,setpts=PTS-STARTPTS[v1]; \ [2:v]setpts=PTS-STARTPTS[v2]; \ [v0][0:a][v1][1:a][v2][2:a]concat=n=3:v=1:a=1[v][a]" \ -map "[v]" -map "[a]" output.mp4 setpts – Reset timestamp for concat. scale – Upscale the smaller ...


0

With “Play To” (basically DLNA streaming), the renderer (your TV) does all the heavy lifting. So yes, this feature depends on the renderer being able to decode and display the file being streamed. There are DLNA servers like PS3 Media Server that convert container formats and even transcode videos on the fly. However, this requires tremendous amounts of ...


1

When converting 4:2:2 footage like proRes to 4:2:0 codecs like x264 you have to explicitly tell it to change the pixel format. Add this to your command line: -pix_fmt yuv420p. But first update your ffmpeg like slhk said.


0

This really depends on the type of encoding. If you capture the video in RAW format, then yes: more images require more storage in a linear fashion. If you encode the captured images directly into some compressed format, then it all depends on how that codec works. In regard to file sizes, that is determined by bitrate × duration. So the frame rate is not ...


0

You can find the actual resolution of your video by going to the Tools -> Codec Information window. Now, to get the most untampered experience, I would uncheck the "Always Fit Window" option to play the video at its native resolution, regardless of the video window size. Now, this option is checked by default because it doesn't provide a very nice user ...


1

FWIW, I had the same problem when trying to play some .mp4 files stored on my Windows 7 PC to my LG Smart TV today. I renamed them to .avi & they then played just fine. I then renamed them back to .mp4 & they now also play just fine.



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