HEVC (High Efficiency Video Coding) is a video compression standard developed jointly by ISO/IEC and ITU-T as a successor to H.264/AVC (Advanced Video Coding). The standard was ratified in April 2013.
Questions tagged [hevc]
365 questions
43
votes
4 answers
H.265/HEVC web browser support
Are there any web browsers out there that can playback the H.265 / MPEG-4 HEVC codec in a html5 video element? On what platform or hardware?
I heard rumours about HEVC support in Edge when hardware decoding is available. With current GPUs and CPUs…
Duvrai
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16
votes
3 answers
Optimally using hevc_videotoolbox and ffmpeg on OSX
I'm using ffmpeg 4.3.1 to convert videos from h264 to h265 and initially I was excited to discover that I can use my Mac's GPU to speed up the conversion with the flag hevc_videotoolbox.
My Mac hardware is the 10th generation Intel i5 with AMD…
Brajesh
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11
votes
1 answer
Get Safari to prefer HEVC in HTML 5 video tag
I'm currently investigating the feasibility of adding HEVC support to videos but am hitting a problem with Safari. Here's the sample source:
9
votes
2 answers
What's the formal way to verify if my device is capable of encoding images in HEIC format?
I'm trying to save an image in the HEIC file format using ImageIO. The code looks something like this:
NSMutableData *imageData = [NSMutableData data];
CGImageDestinationRef destination = CGImageDestinationCreateWithData(
(__bridge…
StatusReport
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8
votes
1 answer
What HEVC codec tag to use with fMP4, hvc1 or hev1?
How does one choose the correct codec tag to use (hvc1 or hev1) when muxing HEVC video into fragmented MP4 for streaming with MPEG-DASH/HLS?
I reckon there's a slight difference in muxing depending on the tag according to ISO/IEC FDIS…
jmsn
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8
votes
1 answer
FFMPEG hevc_nvenc "No NVENC capable devices found" with NVidia GTX950M
I get the error "No NVENC capable devices found" when trying a simple encoding like this, even skipping audio to make sure it's not an audio problem:
ffmpeg.exe -i input.mp4 -c:v hevc_nvenc -an out.mp4
I also tried with more details, like setting…
NaturalBornCamper
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7
votes
3 answers
Determine if iOS device can support HEVC encoding
My problem is I want to use AVVideoCodecHEVC. I know that it's only available in iOS 11, but device's without the A10 chip do not support it.
So, using
if #available(iOS 11.0, *) { let self.codec = AVVideoCodecHEVC }
Will throw Cannot Encode error…
Clayton J.
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7
votes
2 answers
Parsing hevc bitstream
Is there a way to parse an HEVC bitstream file?
I want to be able to create a new bitstream file having selected nal unit packets selected from the original bitstream file.
Edit: I inserted my code. Please find my bitstream file here.
#library for…
zinon
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6
votes
1 answer
MP4 HEVC video not playing with Chrome browser
I'm hosting videos at my Wordpress website, and my users can upload mp4 video files to it.
I know that hosting videos is not recommended for performance, but I'm doing this for beta test for couple of months.
Some mp4 files are not working…
Woogear
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6
votes
2 answers
How do I specify the HEVC codec in the HTML5 video source type attribute?
I'd like to load and play a smaller HEVC-encoded video on web browsers with support for it.
I'm using this code on Safari 11 (macOS 10.13), which has support for the HEVC format.
5
votes
0 answers
SKVideoNode with color blend using SKEffectNode crashes
I need to blend a color to the video as it done with textures in SKSpriteNode. The video has transparency (HEVC), you can download it here. Doc says that a video can be color-blended and I'm writing the correct code, but it crashes.
Quote:
A video…
kelin
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5
votes
0 answers
Translating Handbrake options to a FFMPEG command
I want to convert a bunch of videos from x264 to x265, but I need to do so with ffmpeg in terminal because it's a remote server. These are my Handbrake options (listed items are ticked):
Summary tab
Web optimized
Align A/V Start
Dimensions tab…
Arif
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5
votes
2 answers
Output Video Size Huge Using HEVC Encoder on iOS
I have a project that currently uses the H.264 encoder to record video on iOS. I wanted to try using the new HEVC encoder in iOS 11 to reduce file sizes, but have found that using the HEVC encoder causes file sizes to balloon enormously. Here's a…
jpetrichsr
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5
votes
1 answer
Android MediaCodec HEVC Supported Resolutions
Does anyone know what the supported resolutions are for Android MediaCodec when decoding HEVC?
Through trial and error I've found that the following work:
640x272
720x304
960x400
1280x528
1920x800
2560x1072
And the following…
Jack
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5
votes
1 answer
HEVC (h.265) intra-prediction
I am working on a project in implementing HEVC intra-prediction with MATLAB.
I have read so many articles to write the codes in MATLAB and finally I have done that.
(one of the most useful one was this article:
Intra Coding of the HEVC Standard)
The…
manpmanp
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