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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FFMPEG - Non-monotonous DTS

When I use FFMPEG to convert a video from MP4 to M3U8, using the following command, ffmpeg -i op.mp4 -b:v 128k -flags -global_header -map 0:0 -map 0:1 -f segment -segment_time 4 -segment_list_size 0 ...
1
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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 ...
2
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0answers
36 views

Cutting multi-bitrate MP4 files for Helix Server with FFmpeg

We are using Helix Server in order to distribute Video On Demand (with multi-bitrate) Content among our audience. This means that there is one MP4 file that contains multiple video streams and one ...
0
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1answer
1k views

How to merge MP4 files with different frame rates and different audio sample rates

I have four MP4 files called "file_1", "file_2", "file_3" and "file_4" and I wish to merge them into one file in the following order: file_1, file_2, file_3 and file_4. file_1 has the following ...
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32 views

“windows media player cannot play the file” mp4

We have an .mp4 video hosted on a web site. I can play back the video from the production version of the web site, but not the test version of the site. The production web site has the .mp4 MIME ...
0
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0answers
16 views

ffmpeg conversion commandline needed

I want to ask for help on converting a mpg videofile recorded from TV to a mp4 format my SAT Receiver can play, (mp4). Below are the format infos of source and target output by ffmpeg -i: All done on ...
1
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1answer
2k views

How do I merge a folder of PNG images to a mp4 movie using avconv?

I have a folder containing many time stamped PNG images which I'd like to merge to a short movie. The contents of that directory looks like this: └── images ├── img_20130421_115547.png ├── ...
4
votes
3answers
587 views

How can I remove multiple segments from a video using FFmpeg?

I am trying to delete a few sections of a video using FFmpeg. For example, imagine if you recorded a show on television and wanted to cut out the commercials. This is simple with a GUI video-editor; ...
5
votes
1answer
3k views

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
votes
1answer
24 views

How to determine 'Output bit depth' of the libx264 library in ffmpeg?

According to the x264 Encoding Guide, the crf scale depends on whether x264 is 8-bit or 10-bit. Supposedly x264 --help shows the Output bit depth. But on Windows ffmpeg -h full doesn't say anything ...
4
votes
4answers
8k views

Join mp4 files in linux

I want to join two mp4 files to create a single one. The video streams are encoded in h264 and the audio in aac. I can not re-encode the videos to another format due to computational reasons. Also, I ...
0
votes
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 ...
3
votes
3answers
16k 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, ...
0
votes
0answers
18 views

Put bitrate atom into MP4 container

When iTunes encodes audio with the iTunes Plus setting, it shows 256 kbps as the bitrate, but actually these are VBR files. For files that were not encoded with iTunes, what tool can modify the tags ...
4
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2answers
5k 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 ...
3
votes
2answers
1k views

Compiling x264 with mp4 support

I need x264 for my project. I have one at /opt/local/bin/x264, but when I execute the following command: x264 --qpfile cuepoints.qp --output output.mp4 input.mp4 it says: x264 [error]: not ...
13
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4answers
8k 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 ...
0
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0answers
51 views

Microsoft Expression Encoder 4 Screen Capture in Visual Basic

How can I get Microsoft Expression Encoder 4 in Visual Basic to record the screen in wmv or mp4 video?. I've tried with Microsoft.Expression.Encoder.ScreenCapture.ScreenCaptureJob, but the record in ...
1
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0answers
38 views

Combine/concatenate multiple MP4 files, making each file into a chapter

I am looking to use handbrake to combine 43 short mp4 files into one larger file. However, I want to ensure that the start of each file is recognized as a chapter. I'd be using vlc to play the file.
2
votes
3answers
464 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 ...
0
votes
1answer
79 views

Read/Write albumart cover type in mp4/m4a with AtomicParsley or any other CLI tool?

Is it possible (and how) to read and/or write the cover type of the artwork embedded in mp4/m4a audio with AP? MP4 audio supports 'Front Cover' and 'Back Cover' types, and I can read/set those values ...
1
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1answer
46 views

Is there a way to soft embed subtitles into an mp4 file without re-encoding?

I am trying to add an srt file(s) to mp4 files. Is there a way to do it without re-encoding the file. What I have tried: Added subtitles with the handbrake-cli. While this technically worked, it ...
28
votes
8answers
111k views

How can I merge two mp4 files without losing quality?

I have two high-quality mp4 files, which are of two parts of the same show. I want to merge them together into 1 file, and I usually use VirtualDub to merge my files... But it doesn't seem to support ...
11
votes
6answers
27k views

How can I merge or concatenate two or more MP4 files creating another MP4 file? [duplicate]

How can I concatenate or merge 2 or more MP4 files, in a final output MP4 file also? I have tried in the DOS window to use the COPY command (I have read it somewhere) but it doesn't function well.
1
vote
1answer
719 views

ffmpeg: Could not find codec parameters for stream 0 (Video: h264) unspecified size

I try to convert a video from .raw to .mp4. For this reason I did download, build and install both x264 and ffmpeg. However, command: ffmpeg -f h264 -i output.raw -vcodec copy output.mp4 fails with ...
0
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0answers
81 views

Adding audio to MP4 in Premier Pro and then exporting the new MP4 file

How do I add an audio clip to an MP4 file in Premier Pro and then export the new MP4 file?
9
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1answer
33k views

Handbrake settings to convert MKV to MP4 while retaining the original quality

I have a ton of MKV files I need to convert to MP4 and my chosen software is Handbrake. I'm stuck on which settings would be best for the conversion. I want to retain full quality. Do I just convert ...
0
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0answers
43 views

Achieve mp4(x264) compression of Debut Video Capture in Sony Vegas

I am using Debut Video Capture software to record my screen (948x534px in mp4 h264 encoder with Ratefactor of 28) and afterwards I edit those clips and render then in Sony Vegas. My problem is that ...
15
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3answers
12k 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 ...
0
votes
1answer
520 views

How to merge an image into an audio file?

I am trying to merge a thumbnail-size (104x80) image into an audio file (M4A). I want it to be played in JW Player, but it doesn't seem to support thumbnails. I have tried it in VLC Player, but the ...
5
votes
2answers
3k 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 ...
7
votes
1answer
266 views

How to convert .avi video that has 1 static image in the video (with sound) to mp4 video with ffmpeg to least possible size?

I've an .avi video (divx) that's at 25fps and it has mp3 audio at 64kbit/s. This video has just one image throughout the entire video. I'm trying to convert this video to mp4 but to make it as small ...
4
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5answers
1k views

Extract audio aac from mp4

Is there a command line tool for Windows to extract audio aac from mp4 ?
1
vote
1answer
159 views

Shouldn't we always use Web Optimized for Handbrake?

I use Handbrake sometimes to compress video files, and notice that the "Web Optimized" option is not chosen by default, and cannot be set to the default in Options either. But I tried both Web ...
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0answers
21 views

Seekbar not working in Chrome

I have uploaded a video to my Windows Storage and noticed, that the seekbar (of the default Chrome's html5 player) is not working. Url of that video is: ...
3
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2answers
3k views

Convert mp4 video to a format xbox 360 can play

Here is a video file my Xbox 360 refuses to play: $ MP4Box -info video.mp4 * Movie Info * Timescale 90000 - Duration 02:18:33.365 Fragmented File no - 2 track(s) File Brand ...
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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?
0
votes
1answer
601 views

Use ffmpeg copy codec to combine *.ts files into a single mp4

I've got a bunch of ts segments described by a single index.m3u8 file: index.m3u8 segment1_0_av.ts segment2_0_av.ts segment3_0_av.ts segment4_0_av.ts segment5_0_av.ts I know they ...
0
votes
0answers
67 views

DVD Rips not plying AC3 5.1 Audio in iTunes

So I have been trying for months now to get iTunes to play my dvd rips with the AC3 track. I have 2 audio tracks on all my files, just like how you would download a movie from the iTunes store. One ...
5
votes
1answer
1k views

How do I add MP3, MP4 and H.264 support to Chromium on Windows?

Google Chrome on Windows comes with support for the above media formats, however, Chromium does not. I want to add support for my own personal use, how can I do this? I know that on Ubuntu this is ...
2
votes
2answers
1k views

How to extract an audio track from an MP4 video file on Windows?

Having an MP4 video file I'd like to get just the audio track of it. What makes my question different from the others is that I don't want to convert it (like to MP3 or anything) - I'd prefer to keep ...
3
votes
1answer
5k 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. ...
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votes
2answers
93 views

Convert Blu-ray movie to DVD quality [closed]

I have a 30GB .mp4 file (personal full HD movie) which I want to convert to a DVD quality (4.7GB) movie. What is the best way/tool to do that?
0
votes
1answer
306 views

how to save m3u8 stream

I want to save a m3u-stream. The content of the m3u8 files looks like this: #EXTM3U #EXT-X-ALLOW-CACHE:NO #EXT-X-VERSION:3 #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=756617,CODECS="avc1.77.31, ...
0
votes
1answer
60 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 ...
3
votes
3answers
14k 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
votes
2answers
111 views

Remove beginning and end from multiple MP4 files in bulk

I have several 100 videos that I need to remove the first 20 seconds and the last 30 seconds of. Obviously not practical to do this one at a time. Can I automate this somehow, maybe in an OS X ...
8
votes
2answers
40k 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 ...
2
votes
1answer
1k views

How to convert an MKV to MP4 with Subtitles

I have an MKV with subtitles. I want to convert it to MP4, but HandBrake does support encoding subtitles from anything other than a DVD. Is there a way to do what I want? I'll take anything on ...
4
votes
1answer
616 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 ...