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31 votes
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How to encode Apple ProRes on Windows or Linux?

As of December 2018, Adobe Creative Cloud aps, such as Premier, After Effects and Adobe Media Encoder give you the ability to encode in ProRes without any post-hoc conversion. If you don't use Adobe ...
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18 votes
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Is there a video type for vector animation?

There was one, but it fell in to disuse and isn't used very often anymore, largely because of the lack of mobile support, but also due to security issues it created. It was called Flash.
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11 votes

Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly

The usual solution for this situation: -fflags +genpts It should eliminate the warning, but there's no guarantee your sync issues will be solved.
8 votes

Is there a video type for vector animation?

The University of Bath released a paper demonstrating a vector-based video codec a couple of years ago, with a press release asking "is the pixel about to die?". Strangely since then the pixel hasn't ...
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8 votes
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ffmpeg: how to convert to DNxHR in Windows 10?

There's a single decoder/encoder which reads/converts to both DNxHD and DNxHR. You have to set the correct profile switch. Available options are dnxhd E..V.... dnxhr_444 ...
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7 votes

Can H264 achieve "equivalence" with ProRes 422?

Has anyone done or seen any tests comparing Apple ProRes 422 with high-bitrate H.264? No, but I can tell you that x264 can get as close to lossless as you want (or even mathematically lossless, with -...
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7 votes

Is there a video type for vector animation?

SVG supports animation using JavaScript and the animate element. That means using a browser or embeddable renderer like WebKit to render it, though. Older games often used their own vector animation ...
6 votes

How can encode video with images like these (overlay a video over a fixed image) with ffmpeg?

To overlay a half-sized version of a video in the center of an image, use ffmpeg -loop 1 -i image -i video -filter_complex "[1]scale=iw/2:-1[ovrl]; [0][ovrl]overlay=(main_w-overlay_w)...
  • 31.3k
6 votes
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Understanding containers and codecs

MPEG-4 is not a container specification. It's a suite of specifications. Parts 12 and 14 define containers (MP4). Part 2 defines a video codec, whose encoder implementations are DivX and Xvid. Part 10 ...
  • 31.3k
4 votes

How to encode Apple ProRes on Windows or Linux?

I've tried a bunch of front ends for ffmpeg and finally settled on Tencoder. Widows only. It has a preset for ProRes and is very easy to customize so you can crete setting for often used formats or ...
  • 141
4 votes

Video codec for simple animation?

I read up a bit and made some experiments with lossless codecs, getting decent results. I'd be interested in comments on this, especially if there are lossless or lossy alternatives that I overlooked. ...
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4 votes
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Streamable Container for HEVC (H.265)

MPEG -TS. See here: All MPEG-2 TS operations from GPAC (client and MP42TS) are supported on HEVC. MP42TS can be used to generate TS files usable for DASH or for injection in modulation ...
  • 31.3k
4 votes
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Do a sort of HEAC - High Efficiency Audio Codec exists?

I think HE-AAC fits that bill. High-Efficiency Advanced Audio Coding (HE-AAC) is an audio coding format for lossy data compression of digital audio defined as an MPEG-4 Audio profile in ISO/IEC ...
  • 31.3k
4 votes
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.mkv file not playing in HEVC/H.265 supported player

Both files that don't play feature Opus as the audio codec. As per this site, Opus is not one of the supported audio codecs. Transcode the audio: ffmpeg -i in.mkv -c:v copy out.mkv
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4 votes
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What does codec stand for?

One of the earliest articles in the IEEE database that uses the term, defines it as "coders and decoders." However, newer material does not seem to be consistent. One of the Wikipedia page's sources (...
4 votes
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Is MP4 a valid or common container for ProRes?

No, officially, ProRes is not a registered codec for the ISOBMFF family, of which MP4 is a member.
  • 31.3k
4 votes
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How can I find out which chroma subsampling (if any) is used in a video file?

Mediainfo is a free, open source, cross-platform solution, available in 37 languages. https://en.m.wikipedia.org/wiki/MediaInfo When run from the command line it outputs chrome subsampling info by ...
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4 votes

How can I find out which chroma subsampling (if any) is used in a video file?

Using the ffprobe command (part of FFmpeg, also a command line tool) ffprobe -show_entries stream=pix_fmt <VIDEO FILE> The output will look like this: ... [STREAM] pix_fmt=yuv420p [/STREAM] [...
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3 votes

How to encode Apple ProRes on Windows or Linux?

This is the command line I have used to encode ProRes 4444. If you do not include -bits_per_mb you will get low res results in Windows 10. Many posts do not mention this little aspect. ffmpeg -y -f ...
3 votes

How to encode Apple ProRes on Windows or Linux?

On Windows, I recommend FootageStudio 4K. It is a commercial converter (not cheap) that supports many professional formats, including ProRes.
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3 votes

Is there a video type for vector animation?

Here is some research about this topic: Resolution Independent 2D Cartoon Video Conversion https://www.researchgate.net/publication/305390110_Resolution_Independent_2D_Cartoon_Video_Conversion Video ...
3 votes

VLC Alternative for fine review media with possibly frames control and detailed codec informations

I haven't used VLC as my primary player since 2007. I switched over initially to KMPlayer and then Potplayer. Potplayer allows fairly flexible splitter and codec assignment for decoding. It also ...
  • 31.3k
3 votes
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Predict file size of a Huffyuv codec video stream

The answer is No. Besides the frame dimensions, there's the matter of content complexity. Without scanning the video and doing a first-pass as it were, it's not possible to predict the output size. A ...
  • 31.3k
3 votes

ffmpeg bgr vs rgb and other similiar pixel formats

While I always guessed that the big / little endian was more a matter of patents rather than performance, Nope little endian was developed as a performance optimization whern moving to multi byte ...
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3 votes
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ffmpeg bgr vs rgb and other similiar pixel formats

The order of the components in RGB32 seems to do with endianness: PIX_FMT_RGB32 is handled in an endian-specific manner. An RGBA color is put together as: (A << 24) | (R << 16) | (G &...
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3 votes

ffv1 realtime capture throws out a lot of frame dropped messages!

I get the same result with your commands, however if I skip the pixel format conversion and use the input pixel format 'bgr0', then except for an initial frame drop, I get no further drops. Note that ...
  • 31.3k
3 votes

Reduce render file size in After Effects

You need to change the encoding settings. By default, AE uses the AVI animation codec, which is very good at retaining quality but creates incredibly large files. Using an intermediary codec like ...
3 votes
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Video format can't be played or converted

Use this ffmpeg* command: ffmpeg -i "20151105-175532.dad" -c:v copy "20151105-175532.mp4" *get 32-bit static build.
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