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author | wm4 <wm4@nowhere> | 2014-11-03 20:00:34 +0100 |
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committer | wm4 <wm4@nowhere> | 2014-11-03 20:20:28 +0100 |
commit | 4e87ac823108a670a1a0c5f67ab9bcd6980bac33 (patch) | |
tree | 4e71fa69834ce2e7886f3870abc3b8766d1605c3 /TOOLS/lib/Parse/Matroska/Definitions.pm | |
parent | 93e1db0bff5fc48dffeb2dc94801436bdb459cd3 (diff) | |
download | mpv-4e87ac823108a670a1a0c5f67ab9bcd6980bac33.tar.bz2 mpv-4e87ac823108a670a1a0c5f67ab9bcd6980bac33.tar.xz |
demux_mkv: implement audio skipping/trimming
This mechanism was introduced for Opus, and allows correct skipping of
"preroll" data, as well as discarding trailing audio if the file's
length isn't a multiple of the audio frame size.
Not sure how to handle seeking. I don't understand the purpose of the
SeekPreRoll element.
This was tested with correctness_trimming_nobeeps.opus, remuxed to mka
with mkvmerge v7.2.0. It seems to be correct, although the reported file
duration is incorrect (maybe a mkvmerge issue).
Diffstat (limited to 'TOOLS/lib/Parse/Matroska/Definitions.pm')
-rw-r--r-- | TOOLS/lib/Parse/Matroska/Definitions.pm | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/TOOLS/lib/Parse/Matroska/Definitions.pm b/TOOLS/lib/Parse/Matroska/Definitions.pm index 081fe5bb97..b320e1f6c8 100644 --- a/TOOLS/lib/Parse/Matroska/Definitions.pm +++ b/TOOLS/lib/Parse/Matroska/Definitions.pm @@ -232,6 +232,7 @@ sub define_matroska { elem('Block', 'a1', 'binary'), elem('BlockDuration', '9b', 'uint'), elem('ReferenceBlock*', 'fb', 'sint'), + elem('DiscardPadding', '75A2', 'sint'), }), elem('SimpleBlock*', 'a3', 'binary'), }), @@ -256,6 +257,8 @@ sub define_matroska { elem('CodecPrivate', '63a2', 'binary'), elem('CodecName', '258688', 'str'), elem('CodecDecodeAll', 'aa', 'uint'), + elem('CodecDelay', '56AA', 'uint'), + elem('SeekPreRoll', '56BB', 'uint'), elem('Video', 'e0', { elem('FlagInterlaced', '9a', 'uint'), elem('PixelWidth', 'b0', 'uint'), |