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| author | Ralph Giles <giles@mozilla.com> | 2014-12-20 12:37:48 -0800 |
|---|---|---|
| committer | Ralph Giles <giles@mozilla.com> | 2014-12-20 12:37:48 -0800 |
| commit | 5b712da9c2faa51ebf3336161138b2d2fa54a47d (patch) | |
| tree | 916353afacb0c6345a074e48beaa9302eb88eff6 /include | |
| parent | 7424bb0a247c0692327001addb036f6e2313e970 (diff) | |
| download | opus-5b712da9c2faa51ebf3336161138b2d2fa54a47d.tar.gz | |
Document the motivation for the 120 ms repacketizer limit.
See the mailing list discussion at
http://lists.xiph.org/pipermail/opus/2014-December/002802.html
Diffstat (limited to 'include')
| -rw-r--r-- | include/opus.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/opus.h b/include/opus.h index 93a53a2f..b0bdf6f2 100644 --- a/include/opus.h +++ b/include/opus.h @@ -616,7 +616,10 @@ OPUS_EXPORT void opus_pcm_soft_clip(float *pcm, int frame_size, int channels, fl * merged. Splitting valid Opus packets is always guaranteed to succeed, * whereas merging valid packets only succeeds if all frames have the same * mode, bandwidth, and frame size, and when the total duration of the merged - * packet is no more than 120 ms. + * packet is no more than 120 ms. The 120 ms limit comes from the + * specification and limits decoder memory requirements at a point where + * framing overhead becomes negligible. + * * The repacketizer currently only operates on elementary Opus * streams. It will not manipualte multistream packets successfully, except in * the degenerate case where they consist of data from a single stream. |