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For more details, the phenomenon you are inquiring about is called Generational Loss.


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The question's not entirely clear, but, yes, each new generation of the rendered file will lose some quality if you use the previous generation as the source, but not if you use the initial H264. To elaborate, let's call your raw capture as Generation 1 or Gen1. Then your H.264 transcode is Gen2. Now, after editing with Gen2, your export is Gen3. Now, if ...


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Most video editors support marks, and importantly "in" and "out" marks. Generally, if you set your in and out marks for each of the 12-18 minute segments you want and render the sequence, what renders out is not the whole hour, but only the frames within the in and out marks. If you do that 5 or 4 times, you'll get the segments you want. There is ...


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I don't recognize this connector, but I can say that your assumption is incorrect. Video+/- isn't "two cables", it's just a way of notating the two wires (like say, signal and ground) needed for a complete circuit. The same is true for the AUX and RS485 circuits.


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I just changed the title to focus on high-speed videography, which is a much, much narrower topic than videography (and cinematography) in general. The basics are these: due to persistence of vision, the eye can be fooled into interpreting a series of still images as if they are continuous motion at around 16 frames per second. There are a variety of ...


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Ok this question should probably be put on hold as it is way too broad for a single answer. If I understand you correctly, you're asking about both the technical and artistic aspects of both photography and videography, topics which people study for years in universities. So if you really want to learn all that stuff, sign up for a course at an university. ...


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In general, it is done with a production switcher/vision mixer. I believe CNN uses the Sony MVS8000. Specifically, it is a DVE or resizer feature that scales and positions the video. The video is played back from another device, likely a video server, under the control of the newsroom computer system. They may also be using whatever software that does the ...


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DAZ3D is a great program for very quickly creating storyboards. It has a relatively short learning curve compared to other 3D applications. And it's FREE. It comes with basic models to start. If you need specific models you can buy them (they are relatively cheap), or use simple geometry objects as place holders which you can generate in the program at no ...


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I'm not sure why you would want to use normalize at all. You should use audio tracks and place the audio you need to adjust on it's own track. Then, using the audio mixer, apply dynamics to the audio tracks. You can then use the compressor within the dynamics filter, which you can use on all your tracks, to get your dynamic range all in line. On the clip ...


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You can use FFmpeg, a free command line tool to do this: ffmpeg -i input.mkv -vf pad=1920:1080:0:140,subtitles=filename.srt -crf 20 -c:a copy out.mkv The subtitles filter accepts ASS styling parameters, such as font size and margins.


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There is a software which can be used for single screens and video walls which is called Sedna presenter. They have widgets which lets you display tweets: http://help.sedna-cloud.com/sedna_Presenter_Manual/help_topics/miscellaneous/widgets.php


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The 4 gig limitation is there cause most memory cards are formatted with FAT32 which can't handle files larger than 4 gig. Refer to Manual page 234, http://gdlp01.c-wss.com/gds/8/0300007348/05/eos5d-mk3-im7-en.pdf The only way to limit the file size, is to limit the recording time. You can always do the math and find out how many minutes to record to hit 2 ...


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I suggest you try out OBS with it's Twitter plugin. https://obsproject.com/forum/threads/transparent-borderless-scalable-auto-updating-tweets.12277/ Complete instructions how to set it up, in the linkage.


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You can calculate the maximum total bit rate that would fill the storage: 30GB ≈ 30,720 MB ≈ 245,760 Mb 10 hours = 600 minutes = 36,000 seconds 245,760 / 36,000 ≈ 6.83 Mb/s You need to encode to a video bit rate less than that maximum to account for the audio and any overhead. Plus, you probably want to leave some space free on the storage. I'd say that ...


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There are charts on their website, but in short, the Black allows for 4k recording, 60 mbps bandwidth, higher frame rates at various resolutions, simply put, it has a larger bottleneck enabling it to capture more data. I would suspect the cameras may be perhaps identical, and are firmware locked down into lower levels for the less expensive versions. ...


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I am fairly certain you are getting the corruption because of the usleep(100000); - This is based on the fact I have achieved similar corruption using one webcam by adding usleep(100000) to my code. My usleep(100000); is substitution for running an opencl kernel, meaning this point I know the problem is that the usleep(100000) affects the video frame ...


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You can use this tool I made to fix the timecode without re-encoding, https://sourceforge.net/projects/vob-timecode-fixer/


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I prefer Mulvya's approach, but another method that "fixes" the problem is to demux and mux the streams: ffmpeg -i in.mp4 -c:v copy -an video.mkv ffmpeg -i in.mp4 -vn -c:a copy audio.mkv ffmpeg -i video.mkv -i audio.mkv -c:v copy -c:a copy in2.mp4 mediafilesegmenter -I -t 9 -s in2.mp4 I can't tell you why it works though.


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Looks like MP4 won't skip the edts boxes when creating MP4s. You should transcode to MPEG-TS and feed that into mediafilesegmenter ffmpeg -i in.mp4 -<transcoding options> -vbsf h264_mp4toannexb out.ts


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yes, After Effects comes bundled with Cinema 4D lite. https://helpx.adobe.com/after-effects/using/c4d.html


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yes, VLC supports that with the EXTVLCOPT custom tag. example: #EXTINF:-1,Abenobashi ED - Anata No Kokoro Ni (In Your Heart) #EXTVLCOPT:sub-file=/p/Documents/mus/lyrics/Abenobashi ED - Anata No Kokoro Ni (In Your Heart).srt #EXTVLCOPT:subsdec-encoding=UTF-8 Abenobashi ED - Anata No Kokoro Ni (In Your Heart).flv Note that the path must be absolute and ...


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Here's a workaround: Create a left aligned text layer - type a zero. Format to the size and colour of your choice. Twirl down this layer, twirl down text, ALT click the stopwatch on the Source text property. In the expression field that opens in the timeline, replace the text with: Math.round(time*1000)+" ms" click out of the text field into a blank area ...


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He used this: He prob. captured all of that with a plugin for After Effects,and just added images and stuff.


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I fix it. I was capture my videos with Camtasia 8. I convert my all video formats avi to mov and problem gone. Hope it help anyone, thanks again.



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