Text animation format Code Golf

Python 3, 57 bytes

lambda s:eval(s.upper().translate({70:'+[',87:']*'})[1:])

Turns a string like

f1w0f2w10

into a expression like

[1]*0+[2]*10

that it evaluated as code. This is done by turning the string uppercase, turning each f into +[ and each w into ]*, and removing the initial +. Thanks to Dennis for saving 7 bytes in Python 3 by using translate with a dictionary.

V, 25 bytes

Óá¨ä«©á¨ä«©/²a±, 
D@"hD

Try it online!

Here is a hexdump of the answer, which is encoded in latin1:

0000000: d3e1 a8e4 aba9 e1a8 e4ab a92f b261 b12c  .........../.a.,
0000010: 2016 1b0a 4440 2268 44                    ...D@"hD

Explanation:

<C-v> is byte 0x16 and <esc> is byte 0x1B. Since they are both unprintable, I am using this notation to refer to them.

Óá¨ä«©á¨ä«©/²a±, <C-v><esc>

This is a compressed regex, that basically transforms the input into V code. Here's what the buffer looks like after running this regex:

3a10, <esc>3a11, <esc>3a10, <esc>3a12, <esc>

Here's how that works:

3           "3 times:
 a    <esc> "Append the following text:
  10,       " '10, '

Running this in V (or its parent, vim) would create:

10, 10, 10, 

And then a similar command repeats for each element of the input.

---

So, after running this regex, we've got valid V code that will create the desired output. Thankfully, V can easily self-interpret, as long as the code is in a buffer. So, we run the following:

D      "Delete this line into the unnamed register
 @"    "Run the text in the unnamed register as V code

This is exactly what we want, but now the output has a trailing ,. So:

h      "Move one character to the left. Now we are on the second to last character
 D     "Delete until the end of the current line

Pyth, 18 bytes

r_McvM:z"\d+"1 2 9

Try it online. Test suite.