Questions tagged [codec]

A 'coder-decoder' computer program capable of encoding and/or decoding a digital data stream or signal.

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310 views

AVI Capture in VirtualDub: MP3 Compression

I would like to capture my old VHS tapes to my HDD. I already was successful installing the xvid codec which gives me an acceptable video compression. But somehow I am not able to set audio ...
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0answers
4k views

moov atom not found

I downloaded this video using youtube-dl's HLS downloader. The video was being HLS streamed using AES-128. Even though I could view it perfectly fine when it was being streamed in the browser, VLC ...
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1answer
14k views

how to get vdpau hardware acceleration using ffmpeg?

I am developing a multimedia player using ffmpeg. I am trying hard to get hardware acceleration through ffmpeg using vdpau hardware accelerator. I didn't get any success so far. Below I have mentioned ...
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0answers
607 views

Virtual webcam with MJPEG output

I have an very specific situation maybe someone can help with. The short story/question: Is there a virtual webcam software that can output as a virtual webcam in the motion JPEG (MJPEG) format? ...
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0answers
150 views

Video codec for progressive enhancement

JPEG has a progressive enhancement mode where a full frame can be downloaded quickly at low quality, and then the quality enhanced as the file is continually loaded. (Example image from http://...
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0answers
1k views

Is there a simple explanation of x264 encoding parameters?

So, x264 is still the most popular (free) H.264 encoder out there. But it is also still considered ridiculously cryptic as well. There are tons of switches and options in the encoder that allow you to ...
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0answers
76 views

Converting videos and time accuracy; pitfalls and solutions

I need to compress some videos about laboratory experiments which contain motions of some objects. Since in analysis time intervalls on the video are needed as accurate as the camera captured them, ...
2
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0answers
956 views

Dxtory recording randomly crashing game

Whenever I try to record gameplay with Dxtory (using the h.264 codec) my game will crash after a seemingly random amount of time, although it is usually after at least 30 minutes. Dxtory produces no ...
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0answers
242 views

TitleBox .seq2 animation files

I am using TitleBox for dynamic graphic animations. There are several was to play an animation in this tool, but the "safest" seems to be the internal "animation file" object, which comes with a tools ...
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0answers
101 views

How do I edit source material from DVDs in Final Cut Pro?

I'm currently undergoing a project where I have to edit some material only available from DVDs. Basically I need to export a clip or two from the DVDs, and edit them in FCP for use on the net. The ...
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0answers
279 views

Which container format for ProDVX F150

I need to produce a video that can be played by a ProDVX F150 (a small black box device which plays video from a flash card). It's hard to find real specs for this thing, but webshops say it does: ...
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1answer
19 views

Network Stream reloading in a loop (Nginx/RTMP Streaming Server)

As the generic title suggests, I do not know exactly how to explain my problem, neither do I know what could cause it. Hopefully this ends up to be the right place looking for help, as I do not find ...
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28 views

Is there a slideshow codec?

Is there a video codec that deals well with slideshows? A substantial fraction of videos are slideshows with an audio track. An appropriate video codec would compress to little more than the audio ...
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13 views

RAW Format videos database

there is an online database for raw videos? I wanted to download some videos in RAW Format for a university work and I can't find none. The job I have to do is to encode the RAW video with different ...
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277 views

Best FFmpeg codec for Final Cut import

Is there an ideal FFmpeg codec to use when the video file is designated to be imported into Final Cut Pro X?
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2answers
670 views

Format and codec for a video with 5760×1080

For an art installation I need to project on 3 projectors (1920×1080). My playback setup is: 1 PC with Windows 7, SSD, NVIDIA GeForce GTX 980 and 3 projectors (1920×1080). The video I need to ...
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81 views

Which lossless RGBA codec should I use for share animations sequences between my different video software?

All is in the question. For the moment, I use PNG image sequences which is cool but sometimes I wonder if a better option exists. I heard about HuffYUV but I never tried it because it wasn't easy to ...
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712 views

How to speed up DNxHR HQX capture with ffmpeg?

I'm trying to capture DNxHR HQX to my SSD. I want HQX because I need the 10-bit color for grading (HQX is a 12-bit codec, but HQ and below are all 8-bit). 8-bit HQ recording is no problem; I ...
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147 views

Quicktime PNG codecs turn blue on most recent Premiere Pro CC update

I recently updated my copy of Premiere CC to 2015.4, and many of my downloaded effects overlay videos turned blue. (Attached is a blood spray effect). These were all downloaded from the website ...
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102 views

No -external codec- option in bandicam 3.0.4

I am using Bandicam 3.0.4, and I want to use the Lagarith Lossless codec. I installed it from the official website, and then I used a tutorial on Youtube to select it. According to the tutorial, I ...
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21 views

How do I get Windows Media Player and other tools that depend on system codecs to play this video file?

I have a video file that plays fine in VLC, but only shows 100% black frames in Windows Media Player, and in other applications that depend on system codecs (for example in MATLAB, which is where I ...
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15 views

Save video with the exact quality of the source file

I have never had success in saving file with same quality after editing. Either it was much bigger, or quality was worse (square blocks etc). I thought MediaInfo program would help, i used to check ...
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12 views

How to play/edit AVC1/MP4 in Premiere Pro on Windows XP

Premiere Pro 1.5 has served me well editing the footage from my MiniDV tape camcorder. However now I have a new camera (in my smartphone) and the videos from that won't even play on my editing PC (...
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27 views

FFMPEG -C:V Copy and -C:V Transcode

When I do it like this, -c:v copy -preset ultrafast -cfr 20 -tune zerolatency and it doesn't work I know that this is excpected because the video codec is copied and all the other parameters such as ...
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1answer
48 views

FFmpeg convert G.711 Audio to AAC Audio

Is it possible at all to convert G.711 audio to AAC audio in a stream using ffmpeg? My cam is streaming fine in Chrome (video + audio) but all the other browsers have no audio. I would appreciate any ...
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190 views

Green frame in iMovie export

I exported a movie from iMovie from a theater play of about 1 hour. By chance, I found that one of the frames was completely green: whereas the other frames are mostly black or dark. The settings ...
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17 views

Video not playing in mac

I use a OnePlus 6 mobile for recording videos and so far I have never transferred the video to my Macbook Pro, however, I recently copied all my videos to learn video editing. All videos play ...
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1answer
59 views

Intermediate Codec for Resolve to Adobe Mediaencoder or Premiere Pro

I am editing in Resolve, sometimes I am also just Color Grading in Resolve, so I need an intermediate Codec between Resolve and Adobe Media Encoder or Premiere Pro. The size doesn't matter as much, as ...
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0answers
14 views

Is there a codec good for timelapse? Most of the time an egg is hatching, it is sitting there

I'd like to take a video of an egg hatching, but the space on the camera fills up before the action happens. Luckily, an egg before hatching is boooooring: 99% of the video is a still egg, sitting ...
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108 views

Upscale the key frames while decoding!

I would like to apply some kind of super-resolution (SR) to the keyframes in an H.264 video. The SR process should target the keyframes and upscale them by a factor of 2. For the past few days, I've ...
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22 views

Codec for video surveillance assuming non-changing scenes

Are there video codecs, which automatically and effectively compress static scenes? For example, if we have the same room shown at the same light, this codec should produce zero or very low extra ...
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1answer
432 views

FFMPEG - MAC OS Cannot Capture from Black Magic UltraStudio (Thunderbolt)

I have Black magic UltraStudio Express that captures SDI or HDMI and Connected to MacBook via Thunderbolt when I list devices I get the Audio but not the video : $ ffmpeg -f avfoundation -...
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1answer
90 views

What codec do I need for this video file?

I have a video file from my Hikvision NVR which I cannot play on Windows 10 in either VLC or Windows Media Player - all I get is a black video and the seek bar just whizzes along... I can play this ...
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2answers
895 views

How I can play an Amazon Prime Video movie with Dolby Digital Plus audio using Chrome browser in my PC?

Currently my web browser Chrome (last version 80) cannot play Dolby Digital Plus audio. I know this audio is used in other devices like Apple TV, Roku, or Amazon Fire TV for example. According to ...
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1answer
37 views

Best codes for different video formats

Is there a list somewhere on the internet to give a basic idea of what codecs are best for different video formats, for example, what codecs are best for MP4, MPEG, FLV etc?
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1answer
312 views

Maximum YouTube video stream audio bitrate

I know that YouTube no allows 96kHz audio. But I also worry about second thing the bitrate. How much is possible maximum to get from YouTube stream? I'v only found recommended value of 384kbps, but I ...