Exoplayer can't play some MP4 video, issue same as 5162

[xiaoxixi615]

We really need to see the MP4 or at least the whole moov box. You can attach it here or send it to [email protected] with subject line "Issue #5162".

Originally posted by @andrewlewis in #5162 (comment)

I got the similar issue when playing a .mkv file, exoplayer selected the MP4Extractor, but couldn't play the file. I found that in AtomParsers.java, when invoking the following snippet, the "fixedSampleSize" and
"sampleCount" both were 0, and I dumped the profile, and attached it. It can be played on PC normally.
Please help to take a look, thanks.

public StszSampleSizeBox(Atom.LeafAtom stszAtom) {
  data = stszAtom.data;
  data.setPosition(Atom.FULL_HEADER_SIZE);
  fixedSampleSize = data.readUnsignedIntToInt();
  sampleCount = data.readUnsignedIntToInt();
}

[xiaoxixi615]

@andrewlewis
I have shared the video file via google drive, as it has a large size(1.4G).
sony.txt

seems the stsz sample_count invalid, please have a look ,thanks
[stsz] size=12+8
sample_size = 0
sample_count = 0

[andrewlewis]

@xiaoxixi615 It looks like the file is a fragmented MP4 (not MKV) and it appears to play fine in the demo app on the dev branch (including the fix to remove assertions in #5162). Could you clarify what's actionable for us here? Or can this be closed?

[xiaoxixi615]

Thanks for your quick reply, the video can now be played with exoplayer, Please help to close this issue.