From 048bc3fe31502e0fa5ba115cc91611a72c8fec2e Mon Sep 17 00:00:00 2001 From: Andreas Rheinhardt Date: Sat, 14 Dec 2019 01:36:54 +0100 Subject: avformat/matroskadec: Add a workaround for missing WavPack extradata mkvmerge versions 6.2 to 40.0 had a bug that made it not propagate the WavPack extradata (containing the WavPack version) during remuxing from a Matroska file; currently our demuxer would treat every WavPack block encountered as invalid data (unless the WavPack stream is to be discarded (i.e. the streams discard is >= AVDISCARD_ALL)) and try to resync to the next level 1 element. Luckily, the WavPack version is currently not really important; so we fix this problem by assuming a version. David Bryant, the creator of WavPack, recommended using version 0x410 (the most recent version) for this. And this is what this commit does. A FATE-test for this has been added. Reviewed-by: David Bryant Signed-off-by: Andreas Rheinhardt --- tests/fate/matroska.mak | 5 +++++ tests/ref/fate/matroska-wavpack-missing-codecprivate | 9 +++++++++ 2 files changed, 14 insertions(+) create mode 100644 tests/ref/fate/matroska-wavpack-missing-codecprivate (limited to 'tests') diff --git a/tests/fate/matroska.mak b/tests/fate/matroska.mak index b9ed7322fd..93b5bff89a 100644 --- a/tests/fate/matroska.mak +++ b/tests/fate/matroska.mak @@ -17,6 +17,11 @@ fate-matroska-remux: REF = 49a60ef91cf7302ab7276f9373f8a429 FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER VORBIS_PARSER) += fate-matroska-xiph-lacing fate-matroska-xiph-lacing: CMD = framecrc -i $(TARGET_SAMPLES)/mkv/xiph_lacing.mka -c:a copy +# This tests that the Matroska demuxer correctly demuxes WavPack +# without CodecPrivate; it also tests zlib compressed WavPack. +FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER ZLIB) += fate-matroska-wavpack-missing-codecprivate +fate-matroska-wavpack-missing-codecprivate: CMD = framecrc -i $(TARGET_SAMPLES)/mkv/wavpack_missing_codecprivate.mka -c copy + # This tests that the matroska demuxer supports decompressing # zlib compressed tracks (both the CodecPrivate as well as the actual frames). FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER ZLIB) += fate-matroska-zlib-decompression diff --git a/tests/ref/fate/matroska-wavpack-missing-codecprivate b/tests/ref/fate/matroska-wavpack-missing-codecprivate new file mode 100644 index 0000000000..4645a86ff6 --- /dev/null +++ b/tests/ref/fate/matroska-wavpack-missing-codecprivate @@ -0,0 +1,9 @@ +#extradata 0: 2, 0x00240014 +#tb 0: 11337/500000000 +#media_type 0: audio +#codec_id 0: wavpack +#sample_rate 0: 44100 +#channel_layout 0: 3 +#channel_layout_name 0: stereo +0, 0, 0, 22051, 14778, 0x02819286 +0, 22051, 22051, 22052, 14756, 0x21976243 -- cgit v1.2.3