Bug 2043895 Comment 3 Edit History

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FWIW, I closed Bug 1676902 as worksforme because that particular test of `video/webm; codecs=vp8` was now fast. But I didn't have my thinking hat on - it was an example from a larger enumeration test of video and audio for fingerprinting - so not all codecs may have improved over the years

and indeed `'video/mp4; codecs="avc1.640028"'` didn't move in the `PoC 1676902` (note you need to remove the blank dimensions size since that's invalid in FF149+)

```
              this PoC                PoC 1676902 webm vp8           PoC 1676902 mp4 avc1.640028
chrome148
    cold:     3.80 ms                 4.799999952316284 ms           5.100000023841858 ms
    uncached: 0.16 ms/call  (N=30)
    cached:   0.11 ms/call  (N=30)
nightly153
    cold:     11.75 ms                10.21100000000024 ms           234.45400000000154 ms
    uncached: 2.81 ms/call  (N=30)    3.3997999999992317 ms rerun    220.85879999998724 ms rerun
    cached:   2.31 ms/call  (N=30)
FF102
    cold:     10.37 ms                 72.41029999999955 ms          220.14689999999973 ms
    uncached: 2.75 ms/call  (N=30)     49.83520000000135 ms rerun    201.61880000000383 ms rerun
    cached:   2.38 ms/call  (N=30)
FF95
    cold:     43.09 ms                 99.30589999999938 ms          268.40469999999914 ms
    uncached: 2.53 ms/call  (N=30)     80.84870000000228 ms rerun    233.44219999999768 ms rerun
    cached:   2.79 ms/call  (N=30)
```

Perhaps we should create a new issue to test all audio/video codecs combos vs chrome for possible perf improvements
FWIW, I closed Bug 1676902 as worksforme because that particular test of `video/webm; codecs=vp8` was now fast. But I didn't have my thinking hat on - it was an example from a larger enumeration test of video and audio for fingerprinting - so not all codecs may have improved over the years

and indeed `'video/mp4; codecs="avc1.640028"'` didn't move in the `PoC 1676902` (note you need to remove the blank dimensions size since that's invalid in FF149+)

```
              this PoC                PoC 1676902 webm vp8           PoC 1676902 mp4 avc1.640028
chrome148
    cold:     3.80 ms                 4.799999952316284 ms           5.100000023841858 ms
    uncached: 0.16 ms/call  (N=30)
    cached:   0.11 ms/call  (N=30)
nightly153
    cold:     11.75 ms                10.21100000000024 ms           234.45400000000154 ms
    uncached: 2.81 ms/call  (N=30)    3.3997999999992317 ms rerun    220.85879999998724 ms rerun
    cached:   2.31 ms/call  (N=30)
FF102
    cold:     10.37 ms                 72.41029999999955 ms          220.14689999999973 ms
    uncached: 2.75 ms/call  (N=30)     49.83520000000135 ms rerun    201.61880000000383 ms rerun
    cached:   2.38 ms/call  (N=30)
FF95
    cold:     43.09 ms                 99.30589999999938 ms          268.40469999999914 ms
    uncached: 2.53 ms/call  (N=30)     80.84870000000228 ms rerun    233.44219999999768 ms rerun
    cached:   2.79 ms/call  (N=30)
```

Perhaps we should create a new issue to test all audio/video codecs combos vs chrome for possible perf improvements - edit: and assign actionable findings to Bug 1884199

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