- 23 Feb, 2012 40 commits
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Christophe GISQUET authored
The 32bits targets have been compiled with -mfpmath=sse for proper reference. sbr_sum_square C /32bits: 82c (unrolled)/102c C /64bits: 69c (unrolled)/82c SSE/32bits: 42c SSE/64bits: 31c Use of SSE4.1 dpps to perform the final sum is slower. Not unrolling to perform 8 operations in a loop yields 10 more cycles. Signed-off-by:
Ronald S. Bultje <rsbultje@gmail.com>
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Christophe GISQUET authored
Signed-off-by:
Ronald S. Bultje <rsbultje@gmail.com>
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Ronald S. Bultje authored
Prevents crashers when using the packet if allocation failed. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org
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Derek Buitenhuis authored
Since we are clipping before we shift the values to 16 or 32 bits, we should not shift the min/max clip values to compensate. Fixes 8 and 24 bit lossy decoding. Signed-off-by:
Derek Buitenhuis <derek.buitenhuis@gmail.com> Signed-off-by:
Anton Khirnov <anton@khirnov.net>
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Martin Storsjö authored
This allows opting for a lower MTU than what the AVIOContext indicated, and allows writing into outputs that don't indicate an MTU at all (such as plain files, which is useful for testing). This also allows querying for the MTU via the avoption. Signed-off-by:
Martin Storsjö <martin@martin.st>
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Martin Storsjö authored
This is in preparation for exposing this via an avoption. Signed-off-by:
Martin Storsjö <martin@martin.st>
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Martin Storsjö authored
Signed-off-by:
Martin Storsjö <martin@martin.st>
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Anton Khirnov authored
All video encoders have been converted to encode2(), all new encoders should also use only encode2().
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
We have no decoder, so cannot test if the output is decodable.
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
Libschroedinger is the preferred way to encode dirac video now, it produces better output and has a nicer API.
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
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Diego Biurrun authored
This library does not fit into Libav as a whole and its code is just a maintenance burden. Furthermore it is now available as an external project, which completely obviates any reason to keep it around. URL: http://git.videolan.org/?p=libpostproc.git
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Ronald S. Bultje authored
If the PNG filter is enabled, a PNG-style filter will run over the input buffer, writing into the buffer. Therefore, if no zlib compression was used, ensure that we copy into a temporary buffer, otherwise we overwrite user-provided input data.
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Ronald S. Bultje authored
Fixes crashes for extremely large resizes (several 100-fold). Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org
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Ronald S. Bultje authored
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org
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Ronald S. Bultje authored
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
This is done in preparation for the following patch implementing encode2(). This commit is analogous to 05d69922 for libx264.
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Anton Khirnov authored
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Ronald S. Bultje authored
This prevents crashers and errors further down when reading nodes in the empty tree. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org
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Martin Storsjö authored
Also return a proper error code. Signed-off-by:
Martin Storsjö <martin@martin.st>
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Martin Storsjö authored
According to newer RFCs, this packetization scheme should only be used for interfacing with legacy systems. Implementing this packetization mode properly requires parsing the full H263 bitstream to find macroblock boundaries (and knowing their macroblock and gob numbers and motion vector predictors). This implementation tries to look for GOB headers (which can be inserted by using -ps <small number>), but if the GOBs aren't small enough to fit into the MTU, the packetizer blindly splits packets at any offset and claims it to be a GOB boundary (by using Mode A from the RFC). While not correct, this seems to work with some receivers. Signed-off-by:
Martin Storsjö <martin@martin.st>
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Martin Storsjö authored
This simplifies adding more flags to the macro. Signed-off-by:
Martin Storsjö <martin@martin.st>
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
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Anton Khirnov authored
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Justin Ruggles authored
Channel layouts are specified in the FLAC format description at http://flac.sourceforge.net/format.html fixes Bug 209
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