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Found-By: Jan Ruge <jan.s.ruge@gmail.com>
Bug-Id: 952
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The current code will ignore the init_get_bits() failure and do an
invalid read from the uninitialized GetBitContext.
Found-By: Jan Ruge <jan.s.ruge@gmail.com>
Bug-Id: 952
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It does not break anything currently, but should not be done anyway.
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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This fixes retrieving a valid profile for many of the FATE conformance samples,
allowing them to be properly decoded by the HWAccel after adding a profile check.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Originally written by Pierre Edouard Lepere <pierre-edouard.lepere@insa-rennes.fr>.
Integrated to Libav by Josh de Kock <josh@itanimul.li>.
Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
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Integrated to libav by Josh de Kock <josh@itanimul.li>.
Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
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Integrated to Libav by Josh de Kock <josh@itanimul.li>.
Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
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Integrated to Libav by Josh de Kock <josh@itanimul.li>.
Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
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Based on patch 250430bf28118cf843df887e8c8b345f1c60c82d
by Mickaël Raulet <mraulet@insa-rennes.fr>, integrated
to Libav by Josh de Kock <josh@itanimul.li>.
Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
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Integration to Libav by Josh de Kock <josh@itanimul.li>.
Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
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These bits are set by exceptions in NEON instructions.
Also print the differing bits when FPSCR is clobbered,
and use bic instead of lsl, for clearing the topmost bits.
Signed-off-by: Martin Storsjö <martin@martin.st>
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Fixes AS error on non NEON builds introduced in 71a04721145. Also
set the fpu directly to vfp in checkasm.S to cause build errors on NEON
builds.
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Each const block needs to be terminated by one endconst
invocation so either call endconst after each, or just
declare plain labels to the later strings.
This fixes errors such as this, on some binutils versions:
checkasm.S:38: Error: Macro `endconst' was already defined
Signed-off-by: Martin Storsjö <martin@martin.st>
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They are internal symbols that should not be exported.
based on a patch by Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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It is an internal swscale symbol and thus should not be exported.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Since we only know whether a NAL unit corresponds to a new field after
parsing the slice header, this requires reorganizing the calls to slice
parsing, per-slice/field/frame init and actual decoding.
In the previous code, the function for slice header decoding also
immediately started a new field/frame as necessary, so any slices
already queued for decoding would no longer be decodable.
After this patch, we first parse the slice header, and if we determine
that a new field needs to be started we decode all the queued slices.
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This function's purpose is not very well defined. Currently it does two
(only marginally related) things: selecting the next output frame and
calling ff_thread_finish_setup() for frame threading. The first of those
more properly belongs under field_start(), while the second can be
called directly from decode_nal_units().
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Also set FF_CODEC_CAP_INIT_THREADSAFE while adding internal capabilities.
Signed-off-by: Martin Storsjö <martin@martin.st>
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Previously they returned the default AVERROR_UNKNOWN.
Signed-off-by: Martin Storsjö <martin@martin.st>
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Signed-off-by: Martin Storsjö <martin@martin.st>
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Signed-off-by: Martin Storsjö <martin@martin.st>
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Signed-off-by: Martin Storsjö <martin@martin.st>
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The input packet is already unref'd by the calling function.
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See 17c99b6158f2c6720af74e81ee727ee50d2e7e96.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
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The stack used by checkasm_checked_call_vfp was a multiple of 4 when the
checked function is called. AAPCS requires a double word (8 byte)
aligned stack public interfaces. Since both calls are public interfaces
the stack is misaligned when the checked is called.
Might fix the SIGBUS error in the armv7-linux-clang-3.7 fate config.
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Fixes "Use of uninitialised value" valgrind warnings in checkasm.
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Fixes a regression in ca2f19b9cc3 with some mov/mp4 files. The files have
several NAL units in the supposed single NAL unit after the size field.
Annex B start code prefixes are used to separate them. The first NAL unit
is correctly parsed but the buffer does not point to the next size field.
Instead semi random data (it seems to be the rbsp_stop_one_bit and the
start code prefix) is then parsed as length and will exceed the
remaining length of the buffer.
Patch based on the code in h264's decode_nal_units() and a similar
patch by Hendrik Leppkes in FFmpeg (a9bb4cf87d1).
Bug-Id: ffmpeg/trac5529
Reported-By: Vittorio Giovara
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Currently, SPS.mb_height is actually what the spec calls
PicHeightInMapUnits, which is half the frame height when interlacing is
allowed. Calling this 'mb_height' is quite confusing, and there are at
least two associated bugs where this field is treated as the actual
frame height - in the h264 parser and in the code computing maximum
reordering buffer size for a given level.
Fix those issues (and avoid possible future ones) by exporting the real
frame height in this field.
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also fixes a deadlock found by Денис Кулаков <kudesnik33ra@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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This comment isn't true, the height can be different from the width
for these functions (which is why the height is passed as a parameter
to them).
Signed-off-by: Martin Storsjö <martin@martin.st>
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Should fix the SIGBUS in the armv7-linux-clang-3.7 fate target.
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GNU as evaluates true as '-1' while Apple's variant and llvm's internal
assembler evaluate it as '1'. The best way to avoid this madness is to
eliminate boolean expressions instead of trying to fix it with
preprocessor directives. Use a direct formula to calculate the
required temporary space on the stack in
ff_put_vp8_{epel,bilin}{4,8,16}_h[246]v[246]_armv6().
Fixes a checkasm segfault in vp8dsp.mc when using llvm's internal
assembler for a non-Apple target.
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Unescaped literal left braces are deprecated and a warning was added in
Perl 5.22.
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Signed-off-by: Martin Storsjö <martin@martin.st>
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When writing a fragmented file, we by default write an index pointing
to all the fragments at the end of the file. This causes constantly
increasing memory usage during the muxing. For live streams, the
index might not be useful at all.
A similar fragment index is written (but at the start of the file) if
the global_sidx flag is set. If ism_lookahead is set, we need to keep
data about the last ism_lookahead+1 fragments.
If no fragment index is to be written, we don't need to store information
about all fragments, avoiding increasing the memory consumption
linearly with the muxing runtime.
This fixes out of memory situations with long live mp4 streams.
Signed-off-by: Martin Storsjö <martin@martin.st>
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The tests are inspired by similar tests for vp9 by
Ronald Bultje.
Signed-off-by: Martin Storsjö <martin@martin.st>
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Signed-off-by: Martin Storsjö <martin@martin.st>
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Index 0 is w=16, 1 is wd=8, 2 is wd=4.
Signed-off-by: Martin Storsjö <martin@martin.st>
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