Questions tagged [h.264]
Also known as MPEG-4/AVC, an advanced video encoding standard, widely used in Blu-ray and streaming video.
297
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MP4Box h264 merge video files
I combine video with mp4box. Merge video corrupted.The first video correctly but others are corrupt. Sound properly, the video is corrupted. I know very little english :) Sorry...
MP4Box merge code:
...
32
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5
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Using FFmpeg to locate moov atom
I have a library of videos, all of which should have been adjusted for web-streaming by putting the moov atom ahead of the rest of the video. This allows playback to begin before the client has ...
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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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3
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v4l2 issues with webcam encoded to H.264
I am trying to send a H.264 webcam video feed over wifi to another computer using gstreamer. I am using this tutorial as a guide. I am using a Creative Live! Cam Connect HD as my webcam. The website ...
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how to reduce h264 annex B NAL unit sizes to avoid IP fragmentation?
I'm trying to stream a video over to a terminal using RTP. The video is coded in h.246. I'm using ffmpeg to extract the byte stream according to h.264 annex B :
ffmpeg -i test.h264 -vcodec copy -vbsf ...
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1
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avconv (ffmpeg) on Raspberry Pi often corrupts extracted video still images
I'm using avconv on a Raspberry Pi to try to fetch a still image from an IP camera with an RTSP stream of H.264 video:
$ avconv -v verbose -i $url -fflags discardcorrupt -t 00:00:01 -r 0.1 -an -vsync ...
2
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Proper encoding for long videos from online meetings?
I'm taking responsibility for maintaining a collection of recordings from online meetings, and I'm at a loss to determine which encodings I should use for them. The videos are coming from GoToMeeting, ...
61
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Convert AVI (Xvid) to MP4 (H.264) keeping the same quality
I want to compress an AVI file to MP4 using an h.264 codec. I could not get the same quality. How can I compress it?
Original Video:
Original Video Screen:
FFmpeg console output (ffmpeg -i input....
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1
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How to resolve iTunes crashing with m4v file and QuickTime?
Every time I open an m4v file, iTunes crashes. This is the error it shows:
Firma con problemas:
Nombre del evento de problema: APPCRASH
Nombre de la aplicación: iTunes.exe
Versión de la ...
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1
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The specified module (mod_h264_streaming) could not be found (Apache2)?
I'm trying to get the mod_h264_streaming to work with my Apache2 server. I downloaded a precompiled version of the mod from here. I read here that all I have to do is extract the file to my modules ...
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How Video4Linux and ALSA work with Codecs
My understanding is that a codec is both a decoder and a specification for decoding. So some group writes a codec which explains how to decode from their format back into the raw bitstream, and they ...
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How to apply audio track to a mute h264/mp4-video losslessly?
I have a MP4/h.264-video with no sound. With ffmpeg or similar, how can I apply an audio track to that MP4-file without degrading the quality of the video (i.e. without recoding the video-track)?
I'd ...
3
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1
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How can I convert a video to h264, using pass-through if available?
On my Windows 7 computer, I have several videos that need converting to an iOS-friendly format. I'd like to do this as efficiently as possible.
I have several kinds of videos:
MKVs containing (h|x)...
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.MP4 video (h.264 format) is not playing in iPhone when I host the video in Amazon EC2 instance
I have converted my source.flv video into target.mp4 (h.264 format) by using following command:
ffmpeg -i source.flv -r 25 -b:a 128k -strict -2 -c:v libx264 -preset slow -s 320x240 -b:v 768k -ar ...
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JM H264 Reference Software quality drop
I've just started messing around with the latest JM 18.4 tool for a bit but after I encode a sample yuv file the video comes out poor.(Everything is on default, I did a clean compile just to make sure ...
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How to create thumbnail image from .flv video by using ffmpeg ?
I am using following command to create thumbnail image from flv video , image is created but with error (image doesn't open)
ffmpeg -ss 00:00:10 -i output.mp4 -f image2 -s 150x150 -vframes 1 -c:v ...
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What are the differences between H.264 Profiles?
I was rendering a video in After Effects CS5 and when I was formatting it I chose the H.264 codec and in that format, it had a profile with Baseline, Main and High.
So I did a little test – rendering ...
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0
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Failed to convert a wmv file to mp4 with ffmpeg
i need a help with this command
FFMPEG COMMAND:
ffmpeg -y -i /input.wmv -vcodec libx264 -acodec libfaac -ac 2 -bufsize 20M -sameq -f mp4 /output.mp4
Output:
ffmpeg version 1.0 Copyright (c) 2000-...
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H.264 profiles support of latest Flash Player (v11.6)
Does anyone know what profiles of H.264 videos latest Flash Player(currently 11.6) supports?
Half an hour googling only gives an article from Adobe exactly about my question, which is old, and a page ...
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Using hardware encoders with third party apps?
I have the Avermedia Live Gamer HD (C985) PCIe Hardware Encoder that I used for video gameplay stream.
If I used the new XSplit 1.1, in CODEC settings, I can choose Avermedia Encoder. If I use the ...
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2
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How to batch convert video files on OSX for AppleTV2 / iPhone4?
I'd like to have a solution to batch convert video files to a format suitable for the AppleTV2, iPad2, iPhone4, while at the same time preserving as much quality as possible; I want a single output ...
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Extracting VLC IP Camera stream to raw H264 data
I'm new with streaming from VLC to a file, but I've been searching around the internet for what I'm trying to do and haven't found any relevant information. I'm currently developing a camera ...
3
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2
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Determining Framerate of H.264 stream
I have encoded a video from Lagarith to H.264 using x264, and I might have inadvertently forgotten to write down it's framerate.
The video stream itself isn't in any container (just a h264 file), so ...
3
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3
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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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3
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How can I re-encode H.264 video with minimal quality loss?
I have a lot of MPEG-TS files (.TS container but H.264 video) and playback is fine except that when you skip forward/backward or fast forward it's very sluggish and gets pixelated, etc.
I've been ...
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2
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How can I convert and repair MPEG-TS (DVB-S captures) for better playback?
I have a lot of MPEG-TS video files (H.264 video with AC3 or MP3 in a .TS container) captured from a DVB-S capture card.
When I play these videos it's much slower to seek in the video (ie. skip 30 ...
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2
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How should I encode a fully working H.264 video for Flash player?
I did some homework:
It seems that I should use a command like ffmpeg -i input.mp4 -vcodec libx264 -g 1 -r 25 output.mp4 but this did not work: the output.mp4 can not jump to other seekpoints (...
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VLC (Server) re-stream Security Camera Feed
I purchased a Swann Home Security DVR system and was hoping for some help on how to duplicate the streaming video on my server.
In order to get their web view (streaming video in the browser) to work,...
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1
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What bunch of ffmpeg scripts do I need to get HTML5-compatible "Video for everybody"?
What list of commands should I do in ffmpeg/mencoder/some_other_CLI_app to get a video in all the right formats to use Video for Everybody?
i.e. Is there a subtlety that prevents there being a ...
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1
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How would "The SD x264 TV Releasing Standards 2012" translate into mencoder options?
I've read the file "The SD x264 TV Releasing Standards 2012" (link), which is what a lot of "pirate" groups have agreed upon in terms of encoding options.
The relevant parts are Audio, Framerate, ...
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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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2
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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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1080p to 720p converter that converts very fast [closed]
Any ideas about a good 1080p to 720p converter that is able to convert a video of 90 minutes in less than several hours? (maybe like in 2, 3 or 4 hours ;-)
The compression of a file is H.264/MPEG-4 ...
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.vob to h.264 MP4 Files - Worth The Effort?
When I was doing the converting to digital format a while back I chose .VOB due to no quality loss. However recently I have been informed of this h.264 compression method.
Time is not an issue here, ...
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3
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Convert from MOV to MP4 Container format
I have a digital camera that records nice 1080p H.264 format but unfortunately it uses the MOV container format. Basically I have nothing but the camera and VLC that play this format natively.
Is ...
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Aspect ratio of video sliced with FFmpeg unintentionally changes
I am trying to extract a small part from a larger video without changing the codecs, resolution or something else. Therefore, I use FFmpeg with the following settings.
ffmpeg -vcodec copy -acodec ...
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1
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Is there software to convert a DVD in to h.264 but keep the menus?
I am under the assumption that between a MPEG-2 file and a h.264 file of the same quality, the h.264 file will be smaller; if this assumption is wrong please correct me.
I love extra features on DVD'...
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AMD Opteron 248 H264
Would an AMD Opteron 248 CPU machine handle slightly faster than real time H264 encoding, using something like Sorenson Squeeze 8?
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H.264 encoder with clearer options for specifying minimum & maximum video bitrate?
I almost never get stuck with things like this and kinda figure things out myself... but I'm at a complete loss here.
I've used Handbrake, X-Media Recode, and lots of other encoders and they're ...
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What tools should I use to edit H.264 MP4 GoPro videos?
I have recorded videos using a GoPro, which produces MP4 files containing H.264 encoded videos.
I would like to do some simple editing tasks on these videos without losing quality:-
Cut various ...
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1
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Time of splitting and encoding video with ffmpeg increases exponentially
I'm trying to split a video by subtitles and encode into .mp4(h.264/aac) using ffmpeg, but it takes so much time! First pieces of video are splited and encoded really fast, but for each iteration time ...
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Small pieces of video split by ffmpeg are not playing or playing with artifacts
I'm trying to cut a video file into small parts (0.5-5s) and encode these parts to h.264/aac with ffmpeg. I'm using this command:
ffmpeg -i 1.avi -ss 00:05:00 -t 00:00:01,50 -vcodec libx264 -threads ...
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1
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How to find out whether my PC can play HD videos?
There is a lot of literature on the net on playing HD videos but nothing which explains comprehensively, hence my question.
I have a PC with the following configuration
2GB RAM running 32 bit ...
5
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0
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Stream video with FFMPEG, "Output file does not contain any stream"
I would like to stream an H.264 encoded elementary stream wrapped in RTP headers to a port using FFMPEG.
I have tried the following command lines to no avail...
ffmpeg -i 1080p_1.h264 -f rtp -vcodec ...
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Best H.264 encoding settings to target low-bandwidth audience
We are building a video streaming website targeting audiences with 56kbps internet connection. We've chosen the H.264 codec to prepare the videos, now there are some challenges:
1) Should we use VBR (...
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4
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Can a GPU be used to Encode h264?
I am wondering if I get a better graphics card could it speed up h264 encoding on my machine using handbrake?
If so how can I tell what graphics card will support this?
I am aware that the GPU can ...
5
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1
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Best Handbrake settings for encoding TV shows
Been using Handbrake since it's the fastest and easiest program for me to understand as I'm not a real A/V guy and I'm getting some under par results from it when it comes to TV shows.
I see episodes ...
2
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1
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FFmpeg/X264: Split video mid-GOP without reencoding entire stream
I've got an H264 video (Stored in an MP4 file). Each GOP is approx 10s long. I want to trim the first couple of seconds off the video, which means I need to split the first GOP. Is there a way to do ...
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1
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How to merge AAC audio stream and H.264 video, with increasing delay on audio?
I have an H.264 video stream and an AAC audio stream that are to be multiplexed into an MKV file. I've got this going mostly fine using mkvmerge on Linux, however for each set of streams I find that ...
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1
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How to extract image from single-frame h264 mkv file?
ffmpeg -i IMG_9353.JPG -pix_fmt yuv420p -y qqq.y4m
x264 qqq.y4m --preset placebo --tune stillimage --crf 33 -o qqq.mkv
How to extract the picture now? qqq.mkv is non-empty, size depends on "crf" ...