Questions tagged [h.264]
Also known as MPEG-4/AVC, an advanced video encoding standard, widely used in Blu-ray and streaming video.
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Converting H265 to H264 causes artifacts in dark areas
I'm not sure if this is the right place to ask this, but I'll try anyways. I'm trying to convert a lot of HEVC (H265) videos to AVC (H264) and I'm getting all these nasty artifacts in dark areas. Does ...
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MP4 video working on desktop, not on mobile
I embedded a video in the following URL: https://www.speurtochten.nl/over-ons/ I made it with Premiere Pro CC, exported it as H.264.
The code I use in WordPress: [video src="https://speurtochten.nl/...
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ffmpeg encoding options to maximise Windows 7 compatibility?
I'd like to encode a few short (e.g. 30 seconds-ish) video clips with a goal of maximising their out-of-the-box compatibility with Windows 7.
Specifically, what ffmpeg encoding parameters should I ...
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How can I import h.264 encoded MOV files into windows movie maker?
I have a couple of digital camcorders that output .MOV files encoded in h.264 video/AAC audio. They won't load into Windows Movie Maker or Windows Media Player - I guess I need to install some codecs. ...
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Why is the first frame timestamp 0.066667 and not 0?
I have a stream of TGA files created on disk and I programmaticaly build a h264 video using the x264vfw codec. Options CRT 23, medium preset, Fast Decode, keyint 30 (video is 60 fps), no cut scenes, ...
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What application and codec can I use to encode raw HD video from Fraps?
I have large (4 GB each) HD video files (.avi) recorded using Fraps.
What application and codec (freeware) can I use to encode these videos and make them smaller?
I'd like my videos to be watchable ...
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Converting or playing a .264 video file?
I recently bought a Chinese brand DVR (to record security cams). The DVR exports the video files with a ".264" extension. This is my first time ever dealing with this video format.
Anyhow I've been ...
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In which format to store home made videos
TL;DR: my home videos are taking up too much space and are impractical to backup on Dropbox. Which format do you advice to convert them to?
Long version:
One year ago I bought a new compact camera (...
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FFMPEG HLS - Create playlist only or predict segment times before encoding
I'm using ffmpeg to create a video transcoding on demand system that serves the media through the HLS format.
Right now I can transcode the video and serve them as they are encoded, but I can't use ...
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How to change audio track order on a .ts video
When watching a .ts file, by default, video players like ᴠʟᴄ or Windows media use the first audio channel as the the default audio channel.
In my case, I want to switch the default channel to my ...
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ffmpeg stops streaming after 900 seconds from Axis Camera to FLV RTMP
Audio and video works for 900 seconds and then, ffmpeg stops with:
video:1889kB audio:1825kB global headers:0kB muxing overhead 2.162866%
I stream from an AXIS IP camera through ffmpeg over nginx.
...
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Can ffmpeg losslessly downgrade H.264 level from 4.1 to 4?
I have some .mkv files with h.264 video streams. When I performed the original encoding I limited the decoder level to 4.1 for compatibility with a Samsung SmartTV. Now I'm having issues with a ...
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Why a MP4 H.264 video looks fuzzy on Google Chrome but sharp on Firefox?
This is the file I am trying to open directly into Chrome (It happens on websites but it seems the problem is with the rendering engine)
http://wikisend.com/download/914020/pipe-handbreak.mp4
It ...
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Decrypt or decode ultraviolet videos [closed]
I was on Vudu because I have some Ultraviolet movies in my collection and I saw you could download them from their site for offline usage.
The files on the computer from that download are an h264-...
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Reduce h264 mp4 video size without recoding (like dvdshrink used to do this for DVDs)
I have a large bunch of MP4 files which I need to reduce in size to roughly half. I can recode them all of course, but I remember having used dvdshrink quite some time ago which had an option to ...
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Does Windows 7 Windows Media Player support H.264 mp4 files with variable frame rate?
I think the title says it all.
I have a .flv file I am transcoding to h.264 mp4 file. The source uses a variable framerate.
Transcoding the file to an .mp4 file with constant framerate generates a ...
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How to smooth out jaggy lines with AviSynth?
I have a quite crappy quality video in 480p, I then transcode it with AviSynth and MeGUI. I use a few scripts to enhance the quality, as well as upscaling the video to 720p. As you can see in the ...
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What is the FFmpeg parameters for encode video which looks like the specifications?
Is there anyway to encode video by these specifications? (Main & level 3.1 & ReFrames: 3 frames & Chroma subsampling: 4:2:0 , ... )
FFmpeg:
Stream #0:0: Video: h264 (Main), yuv420p(...
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Sony Vegas: Will re-rendering a video with identical video encoding reduce quality?
I have edited and exported a video in Sony Vegas Pro 13 using the preset 1920x1080-30p video template (mp4, AVC, 16 Mbps). However, I need to reedit the audio of the video, and would like to know if ...
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How can I create a graphic representation of frames in an encoded video?
ffprobe is great but I couldn't get it to show a 1-liner info of each frame, let alone a graphic representation.
Is there some software that can either take the json output of ffprobe and show it ...
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Video cut with missing frames in FFmpeg
I have tried every possible command to cut a portion (1-3 mins) of an H.264 mp4 video but it comes out good & bad. My video is 29.97 FPS, 1080p, ~80 minutes, ~3.5 GB, and at ~6200 KB/s bitrate. ...
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ffmpeg-transcoded H.264 video does not play in Chrome
I am trying to transcode videos using ffmpeg. Following is the sample command.
ffmpeg.exe -i 534.mp4 -vcodec libx264 -level 3.1 -b:v 396k -ar 48000 -ab 32k -s 100x100 -force_key_frames expr:gte(t,...
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Unable to extract h264 video from MKV
I'm asking this here because I was unable to find a better StackExchange site for it. Correct me if I'm wrong.
The problem I'm facing is with a particular MKV file. It has a video stream (h264) that ...
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How to play .h264 file from IP Camera?
My security camera https://www.aliexpress.com/item/High-Quality-HD-720P-Wireless-IP-Camera-Wifi-Night-Vision-Camera-IP-Network-Camera-CCTV-WIFI/32270499536.html?spm=2114.13010608.0.0.0ptGKR stores ...
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How can I use Avidemux to recompress H264 videos with similar quality?
I have a bunch of videos taken with my phone, and they're pretty massive given their length (eg. a 3 min video at 1920×1080 is over 400MB).
I presume this is because the phone favours battery life ...
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Firefox doesn't support H.264 on Windows 7
Something is not right with my Firefox and Windows 7 combo because reportedly, it should work, but Youtube's test page says otherwise:
The problem I'm having is on certain videos Youtube gives me ...
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Capture and view PAL-B raw video and stereo ALSA sound from EasyCAP STK1160 with ffmpeg and encode to x264
I would like to digitalize old VHS casettes with EasyCAP STK1160 under linux. The composite video input is /dev/video1, and hw:2,0 is for its the USB ALSA composite two-channel audio.
For capturing ...
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Media Encoder - H.264 with CRF setting?
I have recently started using Adobe After Effects and use Adobe Media Encoder to render my H.264 videos (with Quicktime installed).
I am familiar with ffmpeg and have always been using CRF based ...
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optimise FFMPEG live stream THUMBNAIL
After testing many possibilities, I have a perfect command line for creating thumbnails from a live stream:
ffmpeg -i rtmp://srvIp/h264.stream -r 1 -an -updatefirst 1 -y thumbnail.jpg
It refreshes a ...
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Cannot play MPEG-TS from webcam using ExoPlayer on Android or Quicktime on Mac
I'm trying to use FFmpeg to stream my webcam to an Android device based on the HttpLiveStreaming(HLS). In order to play the MPEG-TS on Android, I use ExoPlayer.
FFmpeg streaming command: ffmpeg -f ...
CommunityBot
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FFmpeg/avidemux: fix packed B-frames
I'm transcoding some of my old mpeg4 videos (in avi containers) to h.264 with FFmpeg. Basically
ffmpeg -i input.avi -c:v libx264 [x264 settings] -c:a libfdk_aac [aac settings] output.mp4
When doing ...
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Does using preset=placebo or veryslow option also decrease decode time?
When using h.264 I use preset=placebo option. It increases encoding efficiency, but I don't know I feel like it is also increasing decoding time. Is it right or it doesn't affect decoding time at all?
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ffmpeg: packaging H264@MPEGTS into Smooth Streaming
I have a (quite large) set of files that is all H264 in an MPEG TS container. Due to time constraints I need to repackage this content into smooth streaming without transcoding it (transcoding would ...
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avconv: Converting from .ts to H264, with high quality screenshots
I am using avconv to convert MPEG Transport Streams to H264. My main goal is to capture high-quality screenshots from the source video files.
The TS files are interlaced, so I am first converting to ...
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Cutting and merging camera's H264 video results in corrupt file
I am not sure is the problem with the specific video or incorrect commands. I have tested with the latest ffmpeg 4/4/2016 build and older v2.8.6.
The Sample.avi is recorded by a PTZ camera.
To cut and ...
CommunityBot
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Shadowplay vs. NVenc?
I would like to understand the difference bitween NVidia Shadowplay and NVenc. Both allow you to encode videos in h.264 on the fly, but I understood that the first one use a h.264 dedicated chip ...
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What parameters should I be looking at to reduce the size of a .MOV file?
My Canon 60D creates .MOV files when recording video and I've found out that the .MOV container has an H264 video stream and a PCM audio stream.
I've used ffmpeg and GSpot to look at some of my ...
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VLC shows distorted video when seeking
I have Fedora 23 installed with VLC 2.2.2-0.1.fc23. When I open any H.264 video in VLC, when seeking it does not seem to synchronize to I-Frame. The video is distorted for a few seconds.
It works ...
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Analyzing h264 100GB video stream
I have a big file, an h264 stream video of a CCTV.
I analyze this file with ffprobe and the result is this:
[h264 @ 0000000002d24480] no frame!
[h264 @ 0000000002d24480] non-existing PPS 0 referenced ...
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Efficient re-encoding of MPEG-2 cartoon animation
I have some cartoon animation stored in MPEG-2 video that I would like to convert to MPEG-4/h264.
The MPEG-2 video compression is rather bad, with both "small" JPEG artefacts around details in the ...
CommunityBot
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H.264 multi-pass encoding with FFmpeg
I would like to encode a video in H.264 with multi-pass. I tried :
ffmpeg -y -ss 00:00:12.0 -i "c:\vid\example.mkv" -vframes 420 -vcodec libx264 -preset veryslow -refs 8 -b:v 1200k -an -...
CommunityBot
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MS Expression Studio Fails to Detect MP4 Video
I have imported a H.264 MP4 video file into Microsoft Expression Encoder 4, however when I convert the video to the IIS Smooth Streaming VC-1 format, it only has audio with a green screen. How do I ...
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create AVC_Intra from uncompressed in best quality
I have some 720p uncompressed YUV video and I need to transcode this video into an AVC-Intra using the best possible quality.
The best possible Quality is needed, because the video probably will be ...
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mix audio with h264 mp4 video with ffmpeg
I have 2 files :
Input #0, wav, from '105426_1.wav':
Duration: 00:00:09.98, bitrate: 1312 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 41000 Hz, stereo, s16, 1312 kb/s
and:
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HLS video segmenting complications. How to create a transport stream with ffmpeg
I have h264 videos, and currently we're using Apple's HTTP Video Streaming tools and mediafilesegmenter to segment these files.
What I need to do is to switch to alternative segmenter based on this ...
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Does h.264 levels affect the quality of the output?
According to Wikipedia, the example for high resolution of level 4.0 is 2048x1024@30fps. But the resolution of the video ready to encode is 1280x960, which is about level 3.2. Is it better to set the ...
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Keeping the original bitrate while encoding to H.264
Is there any ways to use the original bitrate of the input file? The purpose I do this is because I don't know whether keeping the original bitrate while encoding will shorten the conversion time. If ...
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Unable to trim piped video stream with FFmpeg
Trying to trim a video file that gets piped from the standard input, it only works when the start duration is greater than 2.0s for some videos (fails for ones captured from an Android phone to be ...
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FFMPEG / x264: can I use pass 1 from one encoding session as pass 2 for another?
Question:
Is it legal to use a "pass 1" encoding of a source video at one resolution/bitrate as the input to a "pass 2" encoding of the same source at a different resolution/bitrate? I tried it and ...
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Which audio codec is preferable to use for mp4 video?
I use standart codec for encoding and i don't like the quality of audio even if there is larger audio bitrate.
ffmpeg -y -i input.avi -i watermark.png -filter_complex \"scale=-2:'min(360,ih)',overlay=...
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