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-rw-r--r--doc/FILEFORMAT11
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/FILEFORMAT b/doc/FILEFORMAT
index 1f8fcdd2..4f550871 100644
--- a/doc/FILEFORMAT
+++ b/doc/FILEFORMAT
@@ -13,6 +13,12 @@ They don't have a private header.
<description>
<recording time>
+The service reference contains the Service-ID of the recorded service. With
+that ID, you can find the PMT and the elementary streams.
+
+As a backup method, just find the first available PMT and use that.
+
+Strings are always UTF-8 encoded.
== .ap FILES ==
@@ -44,3 +50,8 @@ implicit 'in' point at zero.
If the there is no final 'out' point, the end-of-file is an implicit
'out'-point.
+Note that the PTS values are zero-based and continouus. If you want absolute
+PTS values, you can either:
+ - use the .ap file, find discontinuities, and interpolate between the APs
+ - or just use the first PTS value as an offset, and work around PTS
+ wraparounds. (simple method)