Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
doc/bitstream_filters.texi | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/doc/bitstream_filters.texi b/doc/bitstream_filters.texi
index 61539d2473..3351625225 100644
--- a/doc/bitstream_filters.texi
+++ b/doc/bitstream_filters.texi
@@ -199,6 +199,13 @@ Identical to @option{pass_types}, except the units in the
given set
removed and all others passed through.
@end table
+The types used by pass_types and remove_types correspond to NAL unit types
+(nal_unit_type) in H.264, HEVC and H.266 (see Table 7-1 in the H.264
+specification and HEVC specifications or Table 5 for H.266), to
+marker values for JPEG (without 0xFF prefix), to start codes without
+start code prefix (i.e. the byte following the 0x000001) for MPEG-2.
+For VP8 and VP9, every unit has type zero.
+
Extradata is unchanged by this transformation, but note that if the stream
contains inline parameter sets then the output may be unusable if they are
removed.
--
2.40.1
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