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Thanks to Martin Storsjö <martin@martin.st> for fixing and testing the
arm32 and aarch64 changes.
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This is possible now that the offsets are already applied
when creating the VLC.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Most of the VLCs used here have a max_depth of two;
some have a max_depth of one. Therefore one can just use two
and avoid the runtime check for whether one should
perform another round of LUT lookup in case the first read
did not read a complete codeword.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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It increases the size of one VLC from two to three bits, thereby
requiring four more VLCEntries (16 bytes .bss), but it allows to
inline the number of bits used when reading them.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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The ff_dca_vlc_transition_mode VLCs don't use an offset at all,
so just use ordinary VLCs for them.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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It is not needed on x64, because the AV_COPY* and AV_ZERO*
macros never use MMX on x64.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Only used by decoders (encoders have ff_encode_alloc_frame()).
Also clean up the other headers a bit while removing now redundant
internal.h inclusions.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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A decoder's input packet need not be writable, so we must not modify
the data.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Signed-off-by: James Almer <jamrial@gmail.com>
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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Said table is 64 bytes long and exported so that it can be used both
in libavcodec and libavformat. This commit stops doing so and instead
duplicates it for shared builds, because the overhead of exporting the
symbol is bigger than 64 bytes. It consists of the length of the name of
the symbol (2x24 bytes), two entries in .dynsym (2x24 bytes), two
entries for symbol version (2x2 bytes), one hash value in the exporting
library (4 bytes) in addition to one entry in the importing library's
.got and .rela.dyn (8 + 24 bytes).
(The above numbers are for a Linux/GNU/Elf system; the numbers for other
platforms may be different.)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Also include channel_layout.h directly wherever used.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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Silences pointless error message when decoding DTS-in-WAV stream with
excessive frame size stored in header.
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avpriv_dca_parse_core_frame_header()
This prevents potential ABI issues with GetBitContext.
Reviewed-by: foo86 <foobaz86@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
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Use proper get_bits.h functions instead of directly accessing index.
Signed-off-by: James Almer <jamrial@gmail.com>
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Avoid using bitstream reader in a non-standard way by directly accessing
index. Use bit shifting/masking operations instead.
Signed-off-by: James Almer <jamrial@gmail.com>
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Signed-off-by: James Almer <jamrial@gmail.com>
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These values will be used by the parser. Prefix them with DCA_
appropriately.
Signed-off-by: James Almer <jamrial@gmail.com>
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Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
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Most DTS-in-WAV streams trigger this, making debug output hard to read.
Signed-off-by: James Almer <jamrial@gmail.com>
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Signed-off-by: James Almer <jamrial@gmail.com>
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This didn't actually check if sync word was found and always errored out
with "-err_detect explode" option enabled.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Signed-off-by: James Almer <jamrial@gmail.com>
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The first X96 channel set can have more channels than core, causing X96
decoding to be skipped. Clear the number of decoded X96 channels to zero
in this rudimentary case.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Similar to AV_ZERO128, AV_COPY128 can use MMX instructions in x86
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AV_ZERO64/128 can use MMX on x86.
Reviewed-By: James Almer <jamrial@gmail.com>
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Fixes compilation with TRACE enabled
Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
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