This feature has been added since Bitrate Viewer Version 2.0 - zoom a marked area within the viewer window several times downto a single sample depth view. To start a zoom just LeftClick and drag an area of your needs (see right-hand screenshot). Small tick marks as you can see on the screenshot are not displayed in the standard non-zoomed view except you move the mouse pointer within a small band at the top of the view. The tick marks are placed at every 5% of the views width of which every 25% is somewhat bigger than the others. Thus may allow you a more precise placement of your zoom. Notice if this is your first zoom you want to apply on a view you will see a zoom indicator bar below the bottom of the viewer window. A red blinking bull-eye will show you the percentage of the view currently covered.
To adjust your selection of the zoomable area hold Shift-RightMouseButton down and drag the area to your size as you want it. Hold Ctrl-RightMouseButton down within the marked zoomable area you move the area along the viewer window. Note that the percentage value displayed centered to the zoomable area is based on the width of the viewer window in pixels.
Now when you're done with you selection of a zoomable area use a RightClick into this area just marked and displayed and the tool will enter the zoom. Several things will happen now: The most important thing of course is, that the view is zoomed to your selection and now shows the amount of bitrate samples that lie between start and end of your selection.
Note: If you want to exit your current selection, LeftClick once anywhere into the viewer window to cancel the selection.
The zoom indicator below the viewer window shows an orange colored fixed bull-eye which indicated the width in percent of the amount of bitrate samples currently displayed vs. its total amount.
An additional zoom flag is displayed right-hand beneath the total time value on the right hand side of the GUI. It indicates that the view is shown with an active zoom and optional the depth number of zooming is appended. You can switch between standard and extended display of the zoom flag with RightClick.
In the headline of the viewer window you'll see a status on its right
side containing the amount of bitrate samples currently displayed
vs. its total amount, the duration in hh:mm:ss:mil of the zoom
covered and the percentage of the bitrate samples (current vs.
total). The latter may differ and is mostly less than the percentage
displayed when you've selected the zoomable are before. The pixel
values of the viewer window needn't match accurately to the amount
of bitrate samples. Some specialities occur for the frame analysis
method: The headline will show the frame number your mouse tracked
cursor is currently pointing to and the term samples here is identical
to frames. Note that the frame number starts with the value 1.
For the other analysis methods the current sample number is displayed in the headline. Sample numbers also start with the value 1.
Note that when your zoomed area does not cover the minimum and/or maximum bitrate values with their markers, an arrow of the same color as the missing non-displayed marker is displayed indicating the direction to the true position of the missing item.
If the missing minimum and maximum bitrate values both lie on the same direction out of the view the longer arrow indicates that its position is farther outward than the other one. As you can see on the screenshot beneath these arrows are working like hyperlinks. Once you LeftClick on either one the zoomed view will be moved around the minimum or maximum bitrate position you've selected and if possible the selected item will be centered within the viewer window. The scale of the moved zoom view will remain the same across minimum and maximum bitrate jumps. By the way the zoom depth value of the zoom flag (right hand to the total time value display) won't change because the scale of the view is the same after re-positioning.
Beneath zooming around the minimum or maximum bitrate marker you have two more possibilities to move to another position and zoom with the same scale as the current zoom is displayed (so the depth value of the zoom flag also doesn't change):
The remaining zoom manipulations will all change the scale of the resulting zoom display and so the amount of bitrates on the viewer window will be different to the previous zoomed display. So here we have: