- 14 Oct, 2015 7 commits
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Hendrik Leppkes authored
* commit '34ed5c2e': avformat: Do not use AVFMT_RAWPICTURE Removal from ffmpeg.c not merged because some parts of avdevice still use it Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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Hendrik Leppkes authored
* commit '16b0c929': avconv: Add loop option. Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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Hendrik Leppkes authored
* commit '11c5f438': dict: Change return type of av_dict_copy() Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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Hendrik Leppkes authored
* commit 'c1aac39e': build: add Solaris symbol versioning Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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Hendrik Leppkes authored
* commit 'b9ece15a': nullenc: Use the wrapped avframe pseudo-encoder Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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Hendrik Leppkes authored
* commit 'd00a8fd4': yuv4mpeg: Use the wrapped avframe pseudo-encoder Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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Hendrik Leppkes authored
* commit '00332e0a': wrapped_avframe: Initial implementation Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
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- 13 Oct, 2015 33 commits
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Ganesh Ajjanagadde authored
Partially fixes Ticket 4727. -duration is not a safe expression, since duration can be INT_MIN. One might ask how it can become INT_MIN. Although it is true that line 2574 is no longer reached with INT_MIN due to commit 053e80f6 (which fixed another integer overflow issue), mov_update_dts_shift is called on line 3549 as well, right after a read of untrusted data. One can do the fix locally there, but that function is already a huge mess. Changing mov_update_dts_shift is likely better. This changes duration to INT_MIN + 1 in such cases. This should not make any practical difference since such streams are anyway fuzzer files. Tested with FATE. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
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Ganesh Ajjanagadde authored
FFABS(INT_MIN) is not safe. Alternative of using FFNABS is not as readable. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
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James Almer authored
Reviewed-by: Henrik Gramner <henrik@gramner.com> Signed-off-by: James Almer <jamrial@gmail.com>
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Christophe Gisquet authored
This is the same test as for the 8bit case.
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Christophe Gisquet authored
This avoid going through constants.c while still sharing them with proresdsp.asm Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Michael Niedermayer authored
changing the context state and restoring it is not safe if another thread writes data into the fifo Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Pedro Arthur authored
When scaling only a slice of a frame the output was written always in the first lines leaving the rest of the frame black.
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Nedeljko Babic authored
This patch fixes build of AAC encoder optimized for mips that was broken due to some changes in generic code that were not propagated to the optimized code. Also, some functions in the optimized code are basically duplicate of functions from generic code. Since they do not bring enough improvement to the optimized code to justify their existence, they are removed (which improves maintainability of the optimized code). Optimizations disabled in 97437bd1 are enabled again. Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Ronald S. Bultje authored
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Ronald S. Bultje authored
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Ronald S. Bultje authored
These aren't quite as helpful as the ones in 8bpp, since over there, we can use pmulhrsw, but here the coefficients have too many bits to be able to take advantage of pmulhrsw. However, we can still skip cols for which all coefs are 0, and instead just zero the input data for the row itx. This helps a few % on overall decoding speed.
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Ronald S. Bultje authored
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Ronald S. Bultje authored
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Ronald S. Bultje authored
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Ronald S. Bultje authored
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Ronald S. Bultje authored
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Ronald S. Bultje authored
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Ronald S. Bultje authored
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Ronald S. Bultje authored
The trouble with this function is that intermediates overflow 31+sign bits, so I've added some helpers (that will also be used in 10/12bpp 8x8, 16x16 and 32x32) to make that easier, basically emulating a half- assed pmaddqd using 2xpmaddwd. It's currently sse2-only, if anyone sees potential in adding ssse3, I'd love to hear it.
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Ronald S. Bultje authored
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Ronald S. Bultje authored
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Ronald S. Bultje authored
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Christophe Gisquet authored
In particular for 10 and 12 bits. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Michael Niedermayer authored
This makes it easier to see where a failure happens Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Christophe Gisquet authored
On 12 frames of a 444p 12 bits DNxHR sequence, _put function: C: 78902 decicycles in idct, 262071 runs, 73 skips avx: 32478 decicycles in idct, 262045 runs, 99 skips Difference between the 2: stddev: 0.39 PSNR:104.47 MAXDIFF: 2 This is unavoidable and due to the scale factors used in the x86 version, which cannot match the C ones. In addition, the trick of adding an initial bias to the input of a pass can overflow, as the input coefficients are already 15bits, which is the maximum this function can handle. Overall, however, the omse on 12 bits samples goes from 0.16916 to 0.16883. Reducing rowshift by 1 improves to 0.0908, but causes overflows. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Luca Barbato authored
There are no formats supporting it anymore and it is deprecated. Update the documentation accordingly.
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Christophe Gisquet authored
Modeled from the prores version. Clips to [0;1023] and is bitexact. Bitexactness requires to add offsets in different places compared to prores or C, and makes the function approximately 2% slower. For 16 frames of a DNxHD 4:2:2 10bits test sequence: C: 60861 decicycles in idct, 1048205 runs, 371 skips sse2: 27567 decicycles in idct, 1048216 runs, 360 skips avx: 26272 decicycles in idct, 1048171 runs, 405 skips The add version is not implemented, so the corresponding dsp function is set to NULL to make it clear in a code executing it. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Christophe Gisquet authored
When the input of a pass has 15 or 16 bits of precision (in particular the column pass), the addition of a bias to W4 may lead to overflows in the input to pmaddwd. This requires postponing the adding of the bias to after the first butterfly. To do so, the fact that m15, unused although zeroed, is exploited. In case the pass is safe, an address can be directly used, and the number of xmm regs can be decreased. Otherwise, the 32bits bias is loaded into it. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Alexandra Hájková authored
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Ganesh Ajjanagadde authored
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Ganesh Ajjanagadde authored
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Ganesh Ajjanagadde authored
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Christophe Gisquet authored
It was useful to (accidentally?) spot an overflow in the column pass of the x86 simple_idct10 implementation. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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