Questions tagged [h265]
The h265 tag has no usage guidance.
24
questions
0
votes
0
answers
32
views
How to open MP4 video with mp42 codec (hvcC) in Vegas Pro?
Apparently the video is with no content. Vegas pro detects the file but shows a black footage for 8 hours. Thanks in advance.
General
Complete name : C:\Docs\A09_20220424145630_007....
0
votes
0
answers
8
views
Ways to enhance video experience on video streaming apps
We have a video delivery prototype on Android. A user takes a short video (H264 formatter), sends it to the cloud, and all other users can watch the video on their home.
What are some ways to enhance ...
1
vote
1
answer
58
views
HEVC vs H264 video file size
I am doing some experiments on the file size of recorded videos in HEVC vs the ones recorded in H264 using a simple Android app that I developed. My impression was that videos recorded in HEVC should ...
0
votes
0
answers
15
views
Does a smaller video file streams fasters than a bigger video file?
0
I developed a simple video player app in Android that plays two mp4 videos from a HTTP URL. One is a smaller file (HEVC formatted) and the other one a bigger sized file (H264 formatted). Basically, ...
0
votes
0
answers
17
views
Why H265 CTU size is limited to 64x64 pixels?
According to Wikipedia the largest the CTU the better the encoding. So why not make CTU of 256x256 pixels? Or larger?
1
vote
1
answer
3k
views
Adobe Premiere Pro no H265 export option?
I am using the trial version of Adobe Premier Pro (also tried Elements) and I noticed that there is no option to export as H265. Is there something i should do in order to enable this functionality? ...
1
vote
0
answers
179
views
VLC doesn't play mp4v video converted with VLC to h264/h265
VLC reports the original video as:
Codec: MPEG-4 Video (mp4v)
Video resolution: 8192x8192
Frame rate: 7.549296
I am using the Convert / Save option to convert the video using the following profile:
...
2
votes
1
answer
2k
views
How to preserve colorspace in ffmpeg
I have a x264 video with yuvj420p(pc, smpte170m) color space and i want to convert this video to x265 and reduce its file size. I have used this command ffmpeg -i input.mp4 -vcodec libx265 -crf 20 ...
0
votes
2
answers
1k
views
Does HEVC Support 16-Bit RGB Color Format?
I have some 3D Rendered Frames in 16-bit rgba Color Format.... I don't Wanna Lose Any Data... Because I have to Use those in editing.... But With Thousands of Frames in 4K File Size Matters.... So Why ...
1
vote
0
answers
955
views
Why has grayscale a higher bitrate than YUV with H.265/HEVC?
For compression purposes, I am re‐encoding a grayscale video to the H.265/HEVC codec. Although the input video is more or less perfectly grayscale in aspect, it is provided in the yuv420p pixel format....
2
votes
1
answer
2k
views
ffmpeg/x265: fixed-GOP, IDR only keyframes, repeating headers
I need to transcode a video to another one with the following properties:
GOP size is always fixed at a given value
Only IDR frames are used as key-frames (not I-slices)
SPS/PPS/VPS frames are ...
1
vote
2
answers
3k
views
Recompressing 1080p h264 collection to HEVC - Target Bitrate For Minimal Loss
My understanding is that HEVC (aka h265) can provide roughly the same video quality as h264 in roughly half the space, for 1080p+ footage. I have a large collection that I would like to re-encode to ...
0
votes
0
answers
2k
views
Help decoding video from hardware encoder
I obtained this video from directly reading the memory of a hardware encoder. The encoder supposedly produces a HEVC (H.265) or H.264 video stream, but I can't accurately play or convert the file with ...
4
votes
2
answers
147
views
H.265 disadvantages with video dimensions not multiple of 8
Are there any disadvantages (like worse image quality/more compression artefacts) when encoding a video in H.265 with dimensions that are not a multiple of 16 or 8, but instead a multiple of 4 or 2?
...
3
votes
0
answers
3k
views
Nginx RTMP didn't accept HEVC h265 input format
I'm trying to created live event broadcast on my VPS server , to make the audience able watch my broadcast I use Nginx RTMP that's produce link at this format http://192.168.1.5:8080/hls/live.m3u8 ...
0
votes
0
answers
2k
views
Replacing I-frames in h265 stream
I'm trying to follow this tutorial: https://www.reddit.com/r/brokenanimegifs/wiki/tutorial
Everything works perfectly. On the basis of this tutorial, I even created my own little tool. It just ...
1
vote
1
answer
959
views
libx265 NUMA pool configuration misleading
I have the following scenario: Using libx265 and a dual-socket system (thus 2 NUMA nodes) I want to encode videos using ffmpeg and libx265. libx265 can be configured to use thread-pools which are ...
2
votes
2
answers
13k
views
Handbrake x265 Optimal settings for ripping DVD
I want to rip DVDs(MPEG2) to MKV using Handbrake for viewing on PC, and currently i am not sure about the settings of the x265 encoder.
Can anyone suggest the optimal settings for:
CRF : 19 ? 23 ? 25 ...
0
votes
1
answer
436
views
Is there any way to efficently compress multiangle recordings?
I have a DVD (a concert recording) which uses the multi angle feature for 3 different angles. I just encoded it with Handbrake on 3 separate but identical machines (all of the same model and maker, ...
1
vote
1
answer
3k
views
How to extract frames and saving frame type to filenames with ffmpeg?
I have a research project where I need to apply very, very computationally heavy image filters on a h264 video. Due some restrictions outside my control I have to use proprietary filter that works ...
1
vote
1
answer
4k
views
Re-encode with ffmpeg using libx265 - rawvideo
I have a script that is going through a media library and re-encoding files to HEVC with ffmpeg and using libx265. The default command I use is:
ffmpeg -i "$origFile" -map 0 -c copy -c:v libx265 -...
4
votes
1
answer
663
views
.mkv file not playing in HEVC/H.265 supported player
I wanted to play UHD (4k) videos in my new LeTV (Super3 X55).
So I used youtube-dl to download 4k YouTube videos (which are humongous btw) but for some reason most of them do not play.
The TV's ...
0
votes
1
answer
946
views
Android - Media Encoder HEVC Plays, FFMPEG HEVC Won't
The Problem
I've been fighting with this for days. I'm writing a video application for Android to be used on an Odroid C2. I've been simultaneously developing some scripts that utilize ffmpeg to ...
0
votes
2
answers
1k
views
How h265 settings / presets affects the target device cpu while decoding and how can I tweak them?
h265 is a very powerful but still not widely supported codec, recently I found myself in the need of prepare some h265 videos and have them played on various smartphones.
While a powerful desktop pc ...