MP4 specifically refers to the MPEG-4 part 14. A standard audio and video container that is part of the MPEG-4 specification developed by ISO / IEC.

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Accurately cut video files from command line

I'm having trouble finding a cli application that can take a video file (avi, mkv, and mp4 preferably) and cut out very short clips (2-6 seconds) with precision time accuracy. I've tried ffmpeg, ...
0
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1answer
4k views

Change bitrate of MP4 file

I have to change the bitrate of MP4 files on Mac OS X. What's the best tool to do this conversion? Am I able to do it with QuickTime?
5
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2answers
7k views

FFmpeg drops frames when encoding a png image sequence into an x264 mp4 video

I'm trying to encode an image-sequence (frame0001.png, frame0002.png, ... , frame0160.png) into an x264 video using the following command: ffmpeg -i frame%04d.png -sameq -r 24 out.mp4 After ...
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vote
1answer
725 views

Merging h264/MP4 files with mp4box results in seeking and sync issues

I've a problem while merging two h.264/MP4 files with the same parameters except length. I'm merging by mp4box -cat .... After that, video players behave strangely: If I drag time slider closer to ...
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2answers
2k views

Extracting A Clip From An MP4 File In Linux on Kubuntu 11.10

I'm running KUbuntu 11.10 Linux. I would like to extract a clip from an MP4 file. I tried this command: myCLIPrompt:~/Downloads/temp/clips$ mencoder -ss 00:43:13 -endpos 00:02:12 -oac copy -ovc ...
3
votes
3answers
24k views

How to split a mp4 video into jpg pictures? [duplicate]

I have a video(with 4 min) in mp4 format(probably MPEG-4) that I need to convert into a lot of pictures(jpg's). I would need to take a lot of Print Screen and paste on MS Paint to manually do that, ...
3
votes
3answers
16k views

Batch Convert .mkv to .mp4

I want to batch convert all .mkv files in a folder into .mp4 with VLC. It should use the original video-/audio stream and if possible the .ass subtitle of the .mkv. It's not really a conversion, it's ...
0
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0answers
19 views

Convert ISO to MP4 with ffmpeg cli on linux [duplicate]

Possible Duplicate: how do I convert .iso to .mp4 without mounting with ffmpeg I have numerous iso and I would like to convert them to mp4 using ffmpeg (only the main video and not menus ...
0
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2answers
718 views

How to encode a fully working h264 video for flash player?

How to encode a fully working h264 video for flash player? I did some homework: It seems that I should use command like "ffmpeg -i input.mp4 -vcodec libx264 -g 1 -r 25 output.mp4" but no luck: the ...
0
votes
1answer
11k views

How play 3D movies on PC (Windows)

I have a 3D mp4 video file. When I open it with KMplayer/POT player, They display two instances of the film side-by-side. How can I watch it like a normal 2D video?
0
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1answer
938 views

How to view the filter graph used by Windows Media Player

i have a video that i cannot render in Graph Edit: GSpot cannot render: and AVISynth's DirectShowSource cannot open: And yet Windows Media Player (12) can play it fine. How can i figure out ...
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2answers
8k views

Conversion from WMV to MP4 file fails with FFmpeg

When converting a WMV file to an MP4 file, it says [mp4 @ 0x989c160] track 1: could not find tag, codec not currently supported in container and Could not write header for output ...
0
votes
1answer
732 views

MP4 re-ecoding to guarantee concatenation without re-encoding

I have 2 mp4 videos that fail to concatenate when using: MP4Box -add 1.mp4 -cat 2.mp4 out.mp4 Is there a way to re-encode 2.mp4 so that the concat call will create a valid output? Possibly with ...
0
votes
1answer
170 views

Suggest format for video compression [closed]

I've a high-quality movie of 720*304 dimension with a size of 1.45 GB, and duration of 2:20 Hrs. I need to compress it to near about 700-750 MB with about 90% Picture quality and 70% sound quality. ...
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2answers
2k views

ffmpeg: Pipe input error

I'm facing an issue while working with ffmpeg when input and output are pipes. Though Output pipe is working fine, piping the input is causing some error. I tried to convert mp4 video to flv using ...
0
votes
1answer
242 views

How do I get Wirecast to properly interface with Red5?

This is something I tried about a year ago, but now I'm seeing that the issue may not be resolved. But it's been a year, surely there must be a way to get Wirecast to work with Red5? As far as I can ...
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3answers
21k views

How to open and repair an m4v or mp4 video file?

Yesterday I was filming a scene with my phone but suddenly the application crashed and when I try to open the m4v generated it says that is corrupted. I have downloaded the video files (around 36MB) ...
0
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2answers
247 views

1080 HD video display - Windows 7

I am running Windows 7 in my Dell Studio 1555 Laptop. I have ATI Mobility Radeon HD 4570 graphics card inside. When I try to watch a video, I can see only some disturbed texture (dark pink grains ...
5
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2answers
4k views

How to convert 50 episodes from DVD into 50 .mp4 with HandBrake, easily?

I loaded a DVD with 50 episodes in it (chose VIDEO_TS from the program), now when i open it in HandBrake, it shows 50 "titles" in there. i choose 320x240 output format and start converting. Then i ...
10
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2answers
56k views

How do I create a DVD from an MP4 file using Windows DVD Maker?

I'm trying to create a DVD from an MP4 file using Windows DVD Maker (on Windows 7) but when doing so I get the error that the file type is not supported and cannot be imported. What is the easiest way ...
3
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2answers
1k views

How to play MP4 file with AAC 5.1 through S/PDIF

I have a laptop with Windows 7 x64 and a Sound Blaster X-Fi Surround 5.1 Pro. I connect the HDMI output of the notebook to my LCD-TV and the external soundcard to my home-theater receiver through an ...
0
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1answer
74 views

Can this DVD Player Play Modern File Formats? [closed]

I'm trying to get a TV with a Sony DVP-S560D CD/DVD Player going. They would like play some videos from the internet on it. Will the Sony DVP-S560D play MP4 files, AVI files, video CDs or do these ...
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3answers
1k views

Converting a .FLV into a .AVI / .MP4 [duplicate]

Possible Duplicate: How do you convert FLV file format to a format that Picasa recognizes (e.g. AVI, MPEG, WMV)? Well i've been looking around google for hours trying to find a way on how ...
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3answers
14k 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 ...
2
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1answer
305 views

Can I transcode a video if I have an application that can play it?

My condo complex was burglarized last week and I've been tasked with retrieving the video from our security system to provide to law enforcement. The system is an older DVR (DiViS DVR - warning: PDF ...
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1answer
424 views

Lower mp4 file size

I have couple of (over 100) mp4 video files, which are approximately 15 MB each. I think they are unnecessarily high quality videos, I want to lower the sizes of each, by reducing the quality. I know ...
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1answer
2k views

How can I rotate MOV and mp4 files in Windows Live Photo Gallery?

I am using Windows Live Photo Gallery on Windows 7 to manage my photos and video clips from camera/phone. If I import photos/videos from camera, it is smart enough to rotate as necessary, but I have ...
0
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1answer
2k views

Sound out of sync after merging multiple mp4 files with Avidemux

I am trying to join (merge) two or more .mp4 files together, without re-encoding. Here is what I did: Started Avidemux 2.5.5. With File->Open, selected Input1.mp4. I received this message - "H.264 ...
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1answer
2k views

FFMPEG converting from m4v to mp4 does not stop processing

I'm using ffmpeg to convert various types of video files into mp4s. The command I use works for most video files I've encountered, however when it encounters an m4v it never stops processing the ...
0
votes
1answer
2k views

Error using ffmpeg to convert mkv to avi on Windows 7

I am using ffmpeg on a Windows 7 machine. I am trying to convert mkv files to either mp4 or avi. Here is the command I used: ffmpeg -i "C:\Path\To\Input.mkv" "C:\Path\To\Output.avi" Here is the ...
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votes
2answers
1k views

A .mp4 converter with command line support?

I would like to find an application that I can use to convert any video format in .mpv4 or .ogg from the command line. I don't mind it cost money as long it worth it. Which one would you recommend? ...
1
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1answer
132 views

import videos again or convert from WMV into MP4?

A few years ago, I imported all the home movie content from my collection of miniDV camcorder tapes into Windows using Windows Movie Maker. These files are in WMV format. And now that I have Macs as ...
4
votes
1answer
756 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 ...
17
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5answers
12k views

FFMPEG convert flv to mp4 without losing quality

Currently I'm converting .flv flash files to .webm and .mp4 files to be used with an HTML5 video player. _ I use this ffmpeg command for WEBM: ffmpeg -i filename.flv -vcodec libvpx -acodec libvorbis ...
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0answers
422 views

Getting Windows Media Center to recognize chapter marks in .mp4 files

I started to convert my DVD collection to .mp4 and despite the fact that Handbrake is adding chapter marks in the .mp4 files, WMC doesn't recognize them and skips forward in the same manner as ...
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0answers
833 views

Decent profile for transcoding to webm and mp4 files with ffmpeg [duplicate]

Possible Duplicate: What bunch of ffmpeg scripts do I need to run “Video for everybody”? I am in the process of converting large, high quality, mxf container files (using mpeg-1 ...
2
votes
1answer
716 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 ...
0
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1answer
8k views

MP4 and FLV formats, which one is smaller for the same video? [closed]

Is an MP4 file for a video smaller or larger than that of a FLV format?
4
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1answer
4k views

How do I convert the format of an audio track inside an MP4 video?

I have an MP4 File with an AVC video track and an MP3 (not AAC) audio track. Video: MPEG4 Video (H264) 1920x1080 [Video] Audio: MPEG Audio 44100Hz stereo 192kbps [Audio] While some video players ...
3
votes
1answer
6k views

how do I convert .iso to .mp4 without mounting with ffmpeg

The problem is - I want to convert .iso with dvd to .mp4 (h264/ac3), but I cannot mount it via mount -o loop, because I'm on a virtual machine that doesn't allow to do that. Googling doesn't help. ...
0
votes
3answers
96 views

Burning videos to a DVD takes 20 to 25 minutes

I wish to take 800MB MP4 files and put them onto DVDs so the footage will be playable in a DVD player connected to a TV. All the burning software I have tried takes 20 to 25 minutes to render / burn. ...
2
votes
3answers
4k views

Why Handbrake compressing a video from a DVD can become 300MB, 1GB, or 2GB when the original should be only 600MB?

Handbrake can convert a DVD clip which is about 30 minutes to a 300MB .mkv file. For experiment, I tried also 1GB file size and 2GB, and they both came out as 1GB or 2GB. But I estimate that the ...
3
votes
1answer
2k views

change mp4 `ftyp` from `isom` to `mp42`

Will I be able to change the ftyp of an mp4 file? I have two mp4 files and placed it unto media info to see what is the difference. The other mp4 plays on my sansa fuze device while the other does ...
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1answer
1k views

Media file repair tool

I have an incomplete MP4 file. It contains audio only, in AAC. Is there any tool that would fix the file so I can play the partial file?
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1answer
3k views

Repairing MP4 files?

I have some .mp4 files. Recently they don't work anymore. No matter which players and codec packs I use, the files show as corrupt, damaged, can't render etc. I've also tried using MediaInfo to ...
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vote
1answer
3k views

embed srt into mp4/m4v

i have an converted .mp4 video file (or .m4v) + an .srt file. Is there a way for me to embed this .srt file into that mp4 file without running a complete convertion?
0
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2answers
3k views

Why does my mp4 (h.264) need mp4box all the time?

Whenever I convert a video into mp4 with h.264 codec, it doesn't play immediately on Windows or iPad. It plays fine when I convert the video with mp4box. I use the following command to convert. ...
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vote
3answers
9k views

Is there an MP7 player or some means of converting it?

I just got a video from a friend and he sent it in the file format of "mp7". Does anyone know an MP7 player for Linux, Mac or PC or means of converting it to an MP4, preferably?
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2answers
1k views

Tag MP4 Video Files

I'm looking for a command-line tool to automatically fetch and tag my MP4 files using data from thetvdb.com. A Google search didn't turn up anything useful.
17
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1answer
31k views

Converting FLV to MP4 Using FFMPEG and Preserving the Quality

Im trying to use ffmpeg to convert my flv files to mp4 to play them on iOS devices but the converted video has a much worse quality than the original one. Here is the command i use: ffmpeg -i ...