Also known as MPEG-4/AVC, an advanced video encoding standard, widely used in Blu-ray and streaming video.

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572 views

Speed up video with FFmpeg with low I-frame distance

I got a video with 60 fps and h264 encoded (.mp4), audio layer is removed. Now I want to speed up the video 4x faster with FFmpeg, but I would like to have a very low I-frame distance to be able to ...
1
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0answers
134 views

H.264 Pro Recorder Files not closed properly

I have several files that were recorded using a BlackMagic Design H.264 Pro Recorder. It would appear that somewhere in the process, the recorder did not close out the file properly when the ...
0
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1answer
324 views

Running qtfaststart in a folder containing multiple .mp4's

I have a library of videos, all of which need to be adjusted for web-streaming by putting the moov atom ahead of the rest of the video with qtfaststart. This allows playback to begin before the client ...
0
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1answer
371 views

Record webcam automated with unknown duration

I need to record (not stream) from my webcam, convert it to H.264 and store it in a mp4-container. With VLC media player I can do this manually with the Open Capture Device menu where I just have to ...
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0answers
607 views

How can I repair a damaged H.264 video stream from a security camera?

I have a security camera file in H.264 format. It cannot be converted due to error messages stating the file is damaged. Is there any way to repair this single 12 MB file so it can be converted to a ...
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1answer
1k views

How to check is h264 mp4 file is correct?

I writing applcation which split live stream from web camera to multiple h264 mp4 files. Now I have some problems like missing keyframes and maybe another. Are there any tools to check my output ...
2
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3answers
2k views

YouTube consistently messes up my video's quality

I'm having trouble encoding a video for YouTube. The content isn't very "compression-friendly" (it's Battlefield 4 gameplay footage), but I'm 100% positive the results could be better. Some links: ...
4
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0answers
2k views

ffmpeg minimal requirements configuration for encoding and decoding h264 files

I'm trying to compile ffmpeg with minimal requirements in order to encode/decode with h264. So far my command line configuration is : ./configure --disable-yasm --disable-everything ...
3
votes
1answer
1k views

How do I make h.264 work on YouTube on Firefox on Windows 7 64 bit?

Various news articles state that Firefox supports h.264 on Windows since version 20. As of this writing the version is 24, yet Firefox still can't play most YouTube videos. I did the HTML5 opt-in and ...
3
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1answer
2k views

Will 128MB video card be enough for Windows 7 Aero with two 720p monitors connected? [closed]

I'm going to buy a replacement AGP video card for parents' decade old Athlon XP 3200+ computer. It has Radeon 9000 with 64MB now. This videocard is crippled under Windows 7 (no WDDM driver) and it ...
3
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1answer
1k views

Why doesn't this video play on iOS?

I'm having trouble getting my mp4 video to play on any iOS device. I'm testing on an iPhone with iOS 6 and an iPad running iOS 7. When I upload the video to my server and enter the URL directly on the ...
0
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1answer
509 views

Is this possible to do H264 CCTV DVR + FreeNAS + FTP?

Can I use the storage inside H264 CCTV DVR as my NAS (network-attached storage) and use Filezilla to access the files remotely?
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1answer
2k views

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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0answers
330 views

video encoder with GPU acc on OS X [closed]

I googled, it seems opencl/cuda is not available in ffmpeg and handbrake. So, is there one tool can convert a video to h.264 or vp8 by GPU acc on OS X(linux can be accepted also)? Thanks.
1
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1answer
707 views

Cut an H264 video on non-key frames

I would like to extract a scene of a video (audio codec: AAC, video codec: H264). The problem is that the scene doesn't begin on a I key-frame. The software, I have tried (Avidemux, Handbrake or VLC) ...
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1answer
3k views

Google Chrome browser. mp4 h264 goes black sporadically when move on timeline (jump to different frame)

Specs: Windows 7 Professional 64 bit Xeon E31270 3.40 GHz CPU 16 GB of RAM Chrome Version 27.0.1453.116 m NVIDIA Quadro 2000 1GB Total available graphics memory 8938 MB Dedicated graphics memory 1024 ...
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2answers
2k views

H264 decompression/decomposition into JPG - quality issues

I'm trying to decode a 1920x1080 30fps h264 stream. Individual frames look outstanding in VLC media player (pausing the playback), but when I decode using avconv (ffmpeg has been deprecated and ...
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1answer
2k views

ffmpeg video with watermark and subtitle at same time

Hi I want to add watermark png image to video with hardcode substitle .srt file at same time what changes i should do the to following line ffmpeg -i input.mkv -threads 0 -c:v libx264 -crf 28 -preset ...
4
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1answer
565 views

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: ...
2
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0answers
2k views

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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1answer
1k views

How do I check if a h264 video contains b-frames?

I'm using ffprobe right now but I don't if it supports showing whether the video contains b-frames and what could be the syntax. Can I do this with ffprobe and so, how, or is there any other free ...
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1answer
1k views

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: ...
12
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2answers
12k 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 ...
3
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2answers
2k views

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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2answers
2k views

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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0answers
1k views

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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1answer
3k 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 ...
2
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1answer
228 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, ...
21
votes
2answers
71k views

Convert AVI to MP4 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 ...
0
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1answer
1k views

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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1answer
786 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 ...
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2answers
1k 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 ...
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3answers
1k 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 ...
3
votes
1answer
2k views

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 ...
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2answers
1k views

.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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1answer
380 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 ...
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1answer
3k views

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 ...
20
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1answer
47k 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 ...
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0answers
1k 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) ...
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1answer
199 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 ...
3
votes
1answer
202 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 ...
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2answers
3k 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 ...
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1answer
2k 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 ...
2
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2answers
2k 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 ...
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3answers
16k 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 ...
13
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3answers
33k 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 ...
2
votes
2answers
9k 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 ...
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2answers
1k views

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 ...
4
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1answer
3k 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 ...
10
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1answer
4k 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 ...