❓ How can I convert FLV to MP4? First you need to add file for conversion: drag and drop your FLV file or click the 'Choose File' button. Then click the 'Convert' button. When FLV to MP4 conversion is completed, you can download your MP4 file. How to Convert FLV to MP4? Click the “Choose Files” button to select your FLV files. Click the “Convert to MP4” button to start the conversion. When the status change to “Done” click the “Download MP4” button.
Name | FLV | MP4 |
Full name | FLV - Flash Video | MP4 - MPEG-4 Part 14 |
File extension | .flv, .f4v, .f4p, .f4a, .f4b | .mp4, .m4a, .m4p, .m4b, .m4r, .m4v |
MIME type | video/x-flv | video/mp4 |
Developed by | Adobe Systems | International Organization for Standardization |
Type of format | Media container | Media container |
Description | Flash Video is a container file format used to deliver video over the Internet using Adobe Flash Player version 6 and newer. Flash Video content may also be embedded within SWF files. Flash Video used to be the de facto standard for web-based streaming video. Notable users of it include Hulu, VEVO, Yahoo! Video, metacafe, Reuters.com, and many other news providers. | MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet. |
Technical details | There are two different video file formats known as Flash Video: FLV and F4V. The audio and video data within FLV files are encoded in the same manner as they are within SWF files. The F4V file format is based on the ISO base media file format and is starting with Flash Player 9 update 3. Both formats are supported in Adobe Flash Player and developed by Adobe Systems. | Most kinds of data can be embedded in MPEG-4 Part 14 files through private streams. A separate hint track is used to include streaming information in the file. The registered codecs for MPEG-4 Part 12-based files are published on the website of MP4 Registration authority (mp4ra.org). |
File conversion | FLV conversion | MP4 conversion |
Associated programs | Adobe Flash Player | Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player |
Wiki | https://en.wikipedia.org/wiki/Flash_Video | https://en.wikipedia.org/wiki/MPEG-4_Part_14 |
![Flv To Mp4 Linux Flv To Mp4 Linux](https://www.top-password.com/images/flv-to-mp4.jpg)
⭐ AnyConv เป็นตัวแปลง FLV เป็น MP4 ระดับห้าดาว ⭐ แปลงไฟล์ flv เป็น mp4 ออนไลน์ในไม่กี่วินาที ไม่มีการติดตั้งซอฟต์แวร์ที่จำเป็น ง่ายรวดเร็วและปลอดภัย การ. To convert a FLV already containing a video in H264 and an audio in AAC in MP4: ffmpeg -i file.flv -acodec copy -vcodec copy -y video.mp4 MP4Box -raw 1 video.mp4 -out video.h264 MP4Box -raw 2 video.mp4 -out audio.aac MP4Box -add video.h264 -add audio.aac file.mp4 rm -f video.mp4.
If I don’t make a mistake, Safari currently need MP4 (H.264/AAC) video encoded for the HTML5
<video>
element.So I tried to convert a video to this format with
ffmpeg
. However when I enter the shell command ffmpeg -i video.flv video.mp4
, the returned error is : Best desktop video editor.Seems stream 0 codec frame rate
differs from container frame rate:
2000.00 (2000/1) -> 29.92 (359/12) Input #0, flv, from ‘video.flv’:
Duration: 00:05:01.20, start:
0.000000, bitrate: 66 kb/s
Stream #0.0: Video: h264, yuv420p, 320×240 [PAR 1:1 DAR 4:3], 66 kb/s,
29.92 tbr, 1k tbn, 2k tbc
Stream #0.1: Audio: aac, 22050 Hz, stereo, s16 Output #0, mp4, to
‘video.mp4’:
Stream #0.0: Video: mpeg4, yuv420p, 320×240 [PAR 1:1 DAR 4:3],
q=2-31, 200 kb/s, 90k tbn, 29.92 tbc
Stream #0.1: Audio: 0x0000, 22050 Hz, stereo, s16, 64 kb/s Stream
mapping: Stream #0.0 -> #0.0
Stream #0.1 -> #0.1 Unsupported codec
for output stream #0.1
differs from container frame rate:
2000.00 (2000/1) -> 29.92 (359/12) Input #0, flv, from ‘video.flv’:
Duration: 00:05:01.20, start:
0.000000, bitrate: 66 kb/s
Stream #0.0: Video: h264, yuv420p, 320×240 [PAR 1:1 DAR 4:3], 66 kb/s,
29.92 tbr, 1k tbn, 2k tbc
Stream #0.1: Audio: aac, 22050 Hz, stereo, s16 Output #0, mp4, to
‘video.mp4’:
Stream #0.0: Video: mpeg4, yuv420p, 320×240 [PAR 1:1 DAR 4:3],
q=2-31, 200 kb/s, 90k tbn, 29.92 tbc
Stream #0.1: Audio: 0x0000, 22050 Hz, stereo, s16, 64 kb/s Stream
mapping: Stream #0.0 -> #0.0
Stream #0.1 -> #0.1 Unsupported codec
for output stream #0.1
An AAC codec is required but I’m quite newbie with ubuntu and I dont really now how to fix this problem. I’m using Ubuntu 9.10 Karmik Koala (for amd64).
Thank you very much. ?
Mkv To Mp4 Linux
Answers:
http://handbrake.fr is a nice high level tool with a lot of useful presets for mp4 for iPod, PS3, … with both GUI and CLI interfaces for Linux, Windows and Mac OS X.
It comes with its own dependencies as a single statically linked fat binary so you have all the x264 / aac codecs included. Image to video converter.
To list all the available presets:
Answers:
Software patents led Debian/Ubuntu to disable the H.264 and AAC encoders in ffmpeg. See /usr/share/doc/ffmpeg/README.Debian.gz.
So go install x264, mplayer/mencoder, and Nero’s AAC encoder. (Or, if you want to use all Free software, and don’t care so much about audio quality, then sudo aptitude install faac.)
I don’t remember if the medibuntu package of mencoder includes x264 vid encoding, since I build my own from git x264 and svn mplayer sources. (x264 is very actively developed, with significant quality and speed improvements frequently added.)
http://git.videolan.org/?p=x264.git;a=summary
http://git.videolan.org/?p=x264.git;a=summary
x264 is also packaged, but you should check that it’s up to date enough to include weightp with recent bugfixes, and even more recent speed improvements…
Or if you’re already willing to convert from .flv, instead of going from the high-quality source the flv was made from, then probably whatever recent version of x264 you can find will be fine.
Answers:
You’re trying to convert a (rather rare) .flv file that (already) contains H.264 video and AAC audio.
Formatting your console’s output as FFmpeg brings out these details.
The original flv is converted to an .mp4 file with H.264 video and AAC audio (just like the original .flv):
Because the audio and video data in the .flv are already in the format/codecs you need for the .mp4, you can just copy everything to the new .mp4 container. This process will be massively faster than decoding and reencoding everything:
or more simply:
The real error you’re getting is:
Unsupported codec for output stream #0.1
Which means FFmpeg can’t convert audio (stream #0.1) to AAC.
You can skip the error by:
- copying the audio data since it’s already AAC encoded (use the copy command above)
or you can solve the error by:
- using a FFmpeg build with AAC decode/encode support. FFmpeg currently supports 4 AAC libraries (see FFmpeg and AAC Encoding Guide).
For more details you should also read Converting FLV to MP4 With FFmpeg The Ultimate Guide
Answers:
You need to recompile ffmpeg (from source) so that it supports x264. If you follow the instructions in this page, then you will be able to peform any kind of conversion you want.
![Converter Converter](https://images.wondershare.com/videoconverter/flv/select-mp4-format-for-flv-to-mp4-conversion-2.jpg)
Answers:
You can also try adding the Motumedia PPA to your apt sources and update your ffmpeg packages.
Answers:
You need to compile ffmpeg with an AAC encoder. You can find one at AudioCoding.
Answers:
Had this problem recently with converting nasty WMV into Final Cut Pro X for editing. Flow player can do it but it leaves a water mark, so I fiddled a bit with ffmpeg till I got something going.
First install ffmpeg – I used
Obviously you need brew installed first, google that bit.
brew install ffmpeg
Obviously you need brew installed first, google that bit.
Next I wrote a simple command line script with the following content – you can substitute the $1 for an input / output file or just create a shell script file…
vi convert.sh
Paste.
vi convert.sh
Paste.
Converter Flv To Mp4
echo 'Pass one'
ffmpeg -y -i '$1' -c:v libx264 -preset medium -b:v 1555k -pass 1 -c:a libfaac -b:a 256k -f mp4 /dev/null &&
echo 'Pass two'
ffmpeg -i '$1' -c:v libx264 -preset medium -b:v 1555k -pass 2 -c:a libfaac -b:a 256k '$1.mp4'
Then to convert your video…
sh convert.sh myvideofile.wmv
If all went well you should see a new file called myvideofile.wmv.mp4.
sh convert.sh myvideofile.wmv
If all went well you should see a new file called myvideofile.wmv.mp4.
Flv To Mp4 Linux
Hope that works for you.
Flv File To Mp4 Online
Tags: video