Introduction

Standard and resolution are both fundamental properties which define a video.
With these two properties, are deducted two other properties: The geometry and the number of FPS.

Standard

The standard is a historic property which continues even today in spite of the technological progress.
We find on internet a plentiful literature on this subject.
To simplify things we shall summarize simply as follows:

Geometry

The geometry corresponds to the ratio Width on Height.

Resolution

Contrary to the photo, we do not express the videos resolution in million pixels but in number of points (pixel) shown by the screen x the number of line.
So, 320x240 corresponds to 320 points of wide by 240 lines

FPS

Corresponds among image which are shown every second. Know that for cinema, 24 images are shown per second and that this figure of 24 images is recognized as corresponding by the maximums of images which the eye would be capable of differentiating:

Matrix of combinations managed by ffDiaporama

The following table indicates all the combinations of geometry, standards and resolutions managed by ffDiaporama.
For every combination, indicates the number of associated FPS:

Name
Geométry PAL
NTSC
Remark
Resolution
FPS
Resolution
FPS
RIM 240
4:3
240x180
24 FPS 240x180
24 FPS
Special format used on Blackberry very small screen
6:9
240x136
240x136
40:17
QVGA
4:3
320x240
25
FPS
320x240
29,97
FPS
Used essentially on Internet and by first generation smartphones and mobiles movie player.
16:9
320x180
320x180
40:17
320x136
320x136
HVGA
4:3
426x320
426x320
Used essentially on Internet and by second generation smartphones and mobiles movie player.
Because this format not respecting the traditional videos geometries, black bands appear to fill the screen which makes 480x320.
16:9
480x270
480x270
40:17
480x204
480x204
VGA
4:3
640x480
640x480
Used essentially on Internet and by some smartphones.
16:9
640x360
640x360
40:17
640x272
640x272
SD-DVD
4:3
720x576
720x480
It is the old televisions format with cathode ray tubes. Note that this format was specifically created for equipments with oval points: It is the anamorphism of the points that determines the geometry. It's why, It is absolutely necessary to ban quite use of this format for other thing than television sets with cathode ray tubes.
16:9
40:17
WVGA
4:3
640x480
640x480
Used essentially on Internet and by new generation smartphones and mobiles movie player. This format tends to become widespread and to replace old  QVGA, HVGA and VGA format used in the years 2000-2010. Because this format not respecting the traditional videos geometries, black bands appear to fill the screen which makes 800x480.
16:9
800x450
800x450
40:17
800x340
800x340
XGA
4:3
1024x768
1024x768
Historically this format was used only by computers (fixed or portable). Henceforth, we meet it more and more on computers tablets (such as iPad).
16:9
1024x576
1024x576
40:17
1024x436
1024x436
720p
4:3
960x720
960x720
23,976
FPS
Today, this format is massively used on Internet in particular by the social sites and video-sharings sites.
We also find it on certain "home cinema" devices.
16:9
1280x720 1280x720
40:17
1280x544
1280x544
1080p
4:3
1440x1080
1440x1080
It is the real "home cinema" format. It is used by the Blue Ray players and the "home cinema" devices.
16:9
1920x1080 1920x1080
40:17
1920x816
1920x816

Note that many other resolutions exists but which are not used by ffDiaporama.

See also


WIKIPEDIA
Display resolution


ffDiaporama 1.0 - July 2011