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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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: ...
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32 votes
5 answers
44k views

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 ...
Jamie Taylor's user avatar
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6 votes
2 answers
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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 (...
jeroen's user avatar
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2 votes
3 answers
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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 ...
mashrur's user avatar
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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 ...
Nicolas Emiliani's user avatar
1 vote
1 answer
4k views

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 ...
Weston Ruter's user avatar
2 votes
1 answer
242 views

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, ...
bwerks's user avatar
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61 votes
1 answer
189k views

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 answer
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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 ...
AbrahamSustaita's user avatar
1 vote
1 answer
1k views

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 ...
rphello101's user avatar
3 votes
2 answers
3k views

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 ...
pnongrata's user avatar
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4 votes
3 answers
3k views

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 ...
poplitea's user avatar
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3 votes
1 answer
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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)...
Redandwhite's user avatar
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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 ...
Shishir Mudliyar's user avatar
1 vote
1 answer
473 views

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 ...
Pete's user avatar
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1 answer
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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 ...
Shishir Mudliyar's user avatar
98 votes
1 answer
255k views

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 ...
James's user avatar
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2 votes
0 answers
3k views

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-...
Olaf Erlandsen's user avatar
1 vote
1 answer
237 views

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 ...
k2_8191's user avatar
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3 votes
1 answer
246 views

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 ...
Joyal's user avatar
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1 vote
2 answers
4k views

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 ...
Luke404's user avatar
  • 545
2 votes
2 answers
4k views

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 ...
PRacicot's user avatar
  • 103
3 votes
2 answers
4k views

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 ...
user avatar
3 votes
3 answers
20k views

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 ...
iLemming's user avatar
  • 667
20 votes
3 answers
64k views

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 ...
SofaKng's user avatar
  • 1,225
3 votes
2 answers
13k views

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 ...
SofaKng's user avatar
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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 (...
cache's user avatar
  • 103
7 votes
1 answer
6k views

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,...
Aaron's user avatar
  • 71
14 votes
1 answer
12k views

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 ...
John Baber-Lucero's user avatar
2 votes
1 answer
2k views

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, ...
Manu's user avatar
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1 vote
2 answers
398 views

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 ...
Dmitriy's user avatar
  • 691
12 votes
2 answers
16k views

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 ...
Ward - Trying Codidact's user avatar
-2 votes
3 answers
18k views

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 ...
Einsteins Grandson's user avatar
0 votes
1 answer
5k views

.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, ...
sealz's user avatar
  • 2,304
35 votes
3 answers
42k views

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 ...
Jeremy Edwards's user avatar
1 vote
1 answer
1k views

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 ...
JJD's user avatar
  • 199
1 vote
1 answer
5k views

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'...
Scott Chamberlain's user avatar
0 votes
0 answers
105 views

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?
Anthony Agius's user avatar
2 votes
0 answers
403 views

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 ...
Cyber-Logic's user avatar
4 votes
1 answer
3k views

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 ...
WW.'s user avatar
  • 156
2 votes
1 answer
501 views

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 ...
Rnd_d's user avatar
  • 133
1 vote
1 answer
2k views

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 ...
Rnd_d's user avatar
  • 133
1 vote
1 answer
27k views

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 ...
Anindya's user avatar
  • 11
5 votes
0 answers
8k views

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 ...
Steve Mead's user avatar
1 vote
0 answers
686 views

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 (...
Harry.B's user avatar
  • 111
15 votes
4 answers
51k views

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 ...
peter's user avatar
  • 705
5 votes
1 answer
10k views

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 ...
jonathanwash's user avatar
2 votes
1 answer
2k views

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 ...
Alex's user avatar
  • 21
1 vote
1 answer
1k views

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 ...
Chris Phillips's user avatar
1 vote
1 answer
2k views

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" ...
Vi.'s user avatar
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