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2ff687c17f
When a Matroska Block is only stored in compressed form, the size of
the uncompressed block is not explicitly coded and therefore not known
before decompressing it. Therefore the demuxer uses a guess for the
uncompressed size: The first guess is three times the compressed size
and if this is not enough, it is repeatedly incremented by a factor of
three. But when this happens with lzo, the decompression is neither
resumed nor started again. Instead when av_lzo1x_decode indicates that x
bytes of input data could not be decoded, because the output buffer is
already full, the first (not the last) x bytes of the input buffer are
resent for decoding in the next try; they overwrite already decoded
data.
This commit fixes this by instead restarting the decompression anew,
just with a bigger buffer.
This seems to be a regression since 935ec5a1.
A FATE-test for this has been added.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
40 lines
2.5 KiB
Makefile
40 lines
2.5 KiB
Makefile
FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER ZLIB) += fate-matroska-prores-zlib
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fate-matroska-prores-zlib: CMD = framecrc -i $(TARGET_SAMPLES)/mkv/prores_zlib.mkv -c:v copy
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# This tests that the matroska demuxer correctly adds the icpf header atom
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# upon demuxing; it also tests bz2 decompression and unknown-length cluster.
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FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER BZLIB) += fate-matroska-prores-header-insertion-bz2
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fate-matroska-prores-header-insertion-bz2: CMD = framecrc -i $(TARGET_SAMPLES)/mkv/prores_bz2.mkv -map 0 -c copy
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# This tests that the matroska demuxer supports modifying the colorspace
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# properties in remuxing (-c:v copy)
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# It also tests automatic insertion of the vp9_superframe bitstream filter
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FATE_MATROSKA-$(call DEMMUX, MATROSKA, MATROSKA) += fate-matroska-remux
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fate-matroska-remux: CMD = md5pipe -i $(TARGET_SAMPLES)/vp9-test-vectors/vp90-2-2pass-akiyo.webm -color_trc 4 -c:v copy -fflags +bitexact -strict -2 -f matroska
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fate-matroska-remux: CMP = oneline
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fate-matroska-remux: REF = e5457e5fa606d564a54914bd12f426c8
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FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER VORBIS_PARSER) += fate-matroska-xiph-lacing
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fate-matroska-xiph-lacing: CMD = framecrc -i $(TARGET_SAMPLES)/mkv/xiph_lacing.mka -c:a copy
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# This tests that the matroska demuxer supports decompressing
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# zlib compressed tracks (both the CodecPrivate as well as the actual frames).
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FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER ZLIB) += fate-matroska-zlib-decompression
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fate-matroska-zlib-decompression: CMD = framecrc -i $(TARGET_SAMPLES)/mkv/subtitle_zlib.mks -c:s copy
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# This tests that the matroska demuxer can decompress lzo compressed tracks.
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FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER LZO) += fate-matroska-lzo-decompression
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fate-matroska-lzo-decompression: CMD = framecrc -i $(TARGET_SAMPLES)/mkv/lzo.mka -c copy
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# This tests that the matroska demuxer correctly propagates
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# the channel layout contained in vorbis comments in the CodecPrivate
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# of flac tracks. It also tests header removal compression.
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FATE_MATROSKA-$(call ALLYES, MATROSKA_DEMUXER FLAC_PARSER) += fate-matroska-flac-channel-mapping
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fate-matroska-flac-channel-mapping: CMD = framecrc -i $(TARGET_SAMPLES)/mkv/flac_channel_layouts.mka -map 0 -c:a copy
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FATE_MATROSKA_FFPROBE-$(call ALLYES, MATROSKA_DEMUXER) += fate-matroska-spherical-mono
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fate-matroska-spherical-mono: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_entries stream_side_data_list -select_streams v -v 0 $(TARGET_SAMPLES)/mkv/spherical.mkv
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FATE_SAMPLES_AVCONV += $(FATE_MATROSKA-yes)
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FATE_SAMPLES_FFPROBE += $(FATE_MATROSKA_FFPROBE-yes)
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