MKV, AVI, XVID, DIVX, etc...
Lyanae
-
gej62 -
gej62 -
Hello,
So, I wanted to know basically what all these formats correspond to, which one offers the best quality?
I’m a bit lost in all of this... What’s the difference between xvid and divx apart from the position of the x ^^'?
Thanks in advance :)
Configuration: Windows 7 / Firefox 3.6.13
So, I wanted to know basically what all these formats correspond to, which one offers the best quality?
I’m a bit lost in all of this... What’s the difference between xvid and divx apart from the position of the x ^^'?
Thanks in advance :)
Configuration: Windows 7 / Firefox 3.6.13
2 réponses
Hello
A video file consists of three distinct elements, to put it simply.
You have the Container (AVI, MP4, MPG, WMV, MKV, or others; let's say it's the extension) which is basically the box or envelope containing the video streams (the image) and audio streams (the sound).
Read this (it might be a bit technical with references to pages in English): https://www.howtogeek.com/677776/what-is-an-avi-file/
The image and sound are streams (data) encoded using a Codec, which is a process capable of encrypting or decrypting an analog or digital signal.
Among the video codecs, we have x264 (which is often confused, even by me, with the standard, here H264/AVC), DivX, XviD, MPEG-2, and others.
For audio codecs, we find: MP3, AAC, Dolby Digital (AC3), etc.
In a file, there is generally only one video stream, but there can be several audio sources or multiple subtitles, among other things.
Then regarding your question about DivX and XviD, I refer you to this two-part article:
- http://www.planetenumerique.com/guides-dossiers/Le-DivX-demystifie-Partie-1.html
- http://www.planetenumerique.com/guides-dossiers/Le-DivX-demystifie-Partie-2.html
But you're absolutely right, XviD comes from reversing the letters in DivX ;)
In terms of quality, this criterion is subjective, but we can consider that the codecs used in HD videos respond best to that. See this paragraph from the Blu-ray article: https://en.wikipedia.org/wiki/Blu-ray#Technology_and_compatibility
Be careful, to have "quality," the files must contain a lot of information, so they will inevitably be larger in size (we say weight).
Therefore, when creating a file, compromises must be made between what you can do and what you want to do depending on the devices where you will read the files. On a computer, it's possible to read almost anything; that's not the case everywhere.
Finally, for a little or a lot of reading, click on the links to learn more:
- http://wiki.univ-paris5.fr/wiki/Video_num%C3%A9rique
- a glossary for example: http://forum.telecharger.01net.com/forum/high-tech/LOGICIELS/Video/glossaire-video-definitions-sujet_261895_1.htm
- Wikipedia (MPEG 1 and 2 and especially MPEG 4): https://en.wikipedia.org/wiki/Moving_Picture_Experts_Group
I hope I have shed some light on the rather obscure world of video, which, I concede, is not easy to grasp.
Best regards
--
A video file consists of three distinct elements, to put it simply.
You have the Container (AVI, MP4, MPG, WMV, MKV, or others; let's say it's the extension) which is basically the box or envelope containing the video streams (the image) and audio streams (the sound).
Read this (it might be a bit technical with references to pages in English): https://www.howtogeek.com/677776/what-is-an-avi-file/
The image and sound are streams (data) encoded using a Codec, which is a process capable of encrypting or decrypting an analog or digital signal.
Among the video codecs, we have x264 (which is often confused, even by me, with the standard, here H264/AVC), DivX, XviD, MPEG-2, and others.
For audio codecs, we find: MP3, AAC, Dolby Digital (AC3), etc.
In a file, there is generally only one video stream, but there can be several audio sources or multiple subtitles, among other things.
Then regarding your question about DivX and XviD, I refer you to this two-part article:
- http://www.planetenumerique.com/guides-dossiers/Le-DivX-demystifie-Partie-1.html
- http://www.planetenumerique.com/guides-dossiers/Le-DivX-demystifie-Partie-2.html
But you're absolutely right, XviD comes from reversing the letters in DivX ;)
In terms of quality, this criterion is subjective, but we can consider that the codecs used in HD videos respond best to that. See this paragraph from the Blu-ray article: https://en.wikipedia.org/wiki/Blu-ray#Technology_and_compatibility
Be careful, to have "quality," the files must contain a lot of information, so they will inevitably be larger in size (we say weight).
Therefore, when creating a file, compromises must be made between what you can do and what you want to do depending on the devices where you will read the files. On a computer, it's possible to read almost anything; that's not the case everywhere.
Finally, for a little or a lot of reading, click on the links to learn more:
- http://wiki.univ-paris5.fr/wiki/Video_num%C3%A9rique
- a glossary for example: http://forum.telecharger.01net.com/forum/high-tech/LOGICIELS/Video/glossaire-video-definitions-sujet_261895_1.htm
- Wikipedia (MPEG 1 and 2 and especially MPEG 4): https://en.wikipedia.org/wiki/Moving_Picture_Experts_Group
I hope I have shed some light on the rather obscure world of video, which, I concede, is not easy to grasp.
Best regards
--
Long live Bobo! Advocate for Bobo's return to the site!!! ~ Little fish will grow big ~
To keep it simple, download "Format Factory" for conversion to multiple formats (everything is preset, just choose), (check the "good quality large size" box).
For something a bit more complicated, download "Free Video Converter," where you can
also choose from a multitude of formats, but you can fine-tune your conversions by increasing the "bitrates" for better quality. You can
choose your video format based on your needs, for example: for "HD" =
1920x1080 = over 2 million pixels or 1280x720, still "HD" but just under 1 million pixels. You can choose the frame rate per second, for example, = 30 frames per second to avoid choppy images if you lower the "bitrates" too much. Experiment – that's how you learn.
To put on a "USB" drive, Mp4 and the format accepted by FullHD TVs.
For MKV, you'll need to format the drive in "NTFS." (note that MKV files are very large, several "GB" for 1.5-hour movies ranging from 4 to 8 GB approximately...!
Format Factory and Free Video Converter are free.
For something a bit more complicated, download "Free Video Converter," where you can
also choose from a multitude of formats, but you can fine-tune your conversions by increasing the "bitrates" for better quality. You can
choose your video format based on your needs, for example: for "HD" =
1920x1080 = over 2 million pixels or 1280x720, still "HD" but just under 1 million pixels. You can choose the frame rate per second, for example, = 30 frames per second to avoid choppy images if you lower the "bitrates" too much. Experiment – that's how you learn.
To put on a "USB" drive, Mp4 and the format accepted by FullHD TVs.
For MKV, you'll need to format the drive in "NTFS." (note that MKV files are very large, several "GB" for 1.5-hour movies ranging from 4 to 8 GB approximately...!
Format Factory and Free Video Converter are free.
Hello
many movies on the internet are encoded in 700 MB, some are well encoded while others
leave much to be desired. It is important to consider that other variables come
into play, such as the duration and genre of the film; we won't encode an animated film
the same way we would encode a Matrix. With the advent of external hard drives, and especially the profiles that make
parameter settings easier, we can achieve great results. When it comes to software, everyone has their preference
for choosing between DivX and Xvid; it all depends on what you’re using it for. MKV is the container for HD
with support for subtitles, multiple audio tracks, and chapter creation; it is the container of interactivity. I won’t talk about x264 and its functions. Finally, it's not just about encoding
but you also need the device that displays on the screen (unless the USB is built into the TV).
For a 7GB HD TNT film of 1h54 (Spiderman 2) in 720p after encoding, it's 1.85GB
for example
Ziggourat, Bernassou, kudos for your information and looking forward to more
Lyanae, my respects.
many movies on the internet are encoded in 700 MB, some are well encoded while others
leave much to be desired. It is important to consider that other variables come
into play, such as the duration and genre of the film; we won't encode an animated film
the same way we would encode a Matrix. With the advent of external hard drives, and especially the profiles that make
parameter settings easier, we can achieve great results. When it comes to software, everyone has their preference
for choosing between DivX and Xvid; it all depends on what you’re using it for. MKV is the container for HD
with support for subtitles, multiple audio tracks, and chapter creation; it is the container of interactivity. I won’t talk about x264 and its functions. Finally, it's not just about encoding
but you also need the device that displays on the screen (unless the USB is built into the TV).
For a 7GB HD TNT film of 1h54 (Spiderman 2) in 720p after encoding, it's 1.85GB
for example
Ziggourat, Bernassou, kudos for your information and looking forward to more
Lyanae, my respects.
- codecs: https://en.wikipedia.org/wiki/Comparison_of_video_codecs
- container formats: https://en.wikipedia.org/wiki/Comparison_of_container_formats
Good luck ;)