FFmpeg

Commit Graph

Author	SHA1	Message	Date
Marvin Scholz	81747b5259	avutil: use av_dict_iterate Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
Lynne	710d83bdde	lavu/tx: zero-out imaginary of last coefficient in forward RDFTs We didn't do this, because it's zero anyway, but it prevents users from using uninitialized memory in calculations.	2 years ago
Michael Niedermayer	7792825ad6	avutil/tx: Use unsigned in ff_tx_fft_sr_combine() to avoid undefined behavior Fixes: signed integer overflow: -1284837070 - 982101618 cannot be represented in type 'int' Fixes: 53105/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AC3_FIXED_fuzzer-4848015827664896 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>	2 years ago
Lynne	90c17a05aa	x86/tx_float: fix stray change in 15xM FFT and replace imul->lea Thanks to rorgoroth for bisecting and kurosu for the lea suggestion.	2 years ago
Andreas Rheinhardt	1a7efafd33	avutil/tx: Use proper deallocator May fix the FATE failures on x64 Windows here: https://fate.ffmpeg.org/report.cgi?slot=x86_64-msvc17-windows-native&time=20221125130443 Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
Lynne	a56d7e0ca3	lavu/tx: add DCT-III implementation	2 years ago
Lynne	504b7bec1a	lavu/tx: add DCT-II implementation	2 years ago
Lynne	93c30bd6f0	lavu/tx: clarify stride for RDFT transforms	2 years ago
Lynne	43d285a40f	lavu/tx: fix last coefficient scaling for R2C transforms This was a typo.	2 years ago
Lynne	8547123f3b	lavu/tx: generalize PFA FFTs This commit permits any stacking of FFTs of any size.	2 years ago
Lynne	7f019e7758	lavu/tx: add length decomposition function Rather than using a list of lengths supported, this goes a step beyond and uses all registered codelets to come up with a good decomposition.	2 years ago
Lynne	87bae6b018	lavu/tx: refactor to explicitly track and convert lookup table order Necessary for generalizing PFAs.	2 years ago
Lynne	1c8d77a2bf	lavu/tx: refactor and separate codelet list and prio code	2 years ago
Lynne	958b3760b5	lavu/tx: improve transform tree logging Now prints the actual codelet size used, as well as the number of allowed factors.	2 years ago
Lynne	6ddd10c3e2	lavu/tx: allow codelets to specify a minimum number of matching factors	2 years ago
Lynne	dd77e61182	lavu/tx: add ff_tx_clear_ctx() This function allows implementations to clean up a context after successfully initializing subcontexts.	2 years ago
Lynne	fab97faf02	x86/tx_float: implement striding in fft_15xM	2 years ago
Lynne	92100eee5b	x86/tx_float_init: properly specify the supported factors of 15xM FFTs Only powers of two are currently supported.	2 years ago
Lynne	cc1df4045e	x86/tx_float: add a standalone 15-point AVX2 transform Enables its use everywhere else in the framework.	2 years ago
Lynne	877e575b5d	x86/tx_float: optimize and macro out FFT15	2 years ago
Lynne	fbe4fd992f	lavu/tx: support output stride in naive transforms Allows them to be used in general PFAs.	2 years ago
Lynne	68cabf8750	lavu/tx: add fft_inplace_small transforms This is much faster than the loop.	2 years ago
Lynne	d4e39cae2e	lavu/tx: drop requirement of input == output for in-place transforms No longer necessary.	2 years ago
Lynne	fff3e1d848	lavu/tx: support out-of-place transforms in fft_inplace This makes testing easier, as a unified path can be used for in/out of place transforms.	2 years ago
Lynne	d260796f11	lavu/tx: make C ptwo transforms in+out of place We assume that _all_ in-place transforms can operate out of place, which isn't true, because the C ptwo transforms were always in-place (dst).	2 years ago
Lynne	37008dc402	lavu/tx: add naive_small FFT The same as naive but with precomputed tables. Makes it more useful for odd-factors we don't support yet.	2 years ago
Lynne	e8a9b7b298	lavu/tx: list all odd-length FFT factors as regular codelets Allows them to be picked just like any other transform.	2 years ago
Lynne	45bd4bf79f	lavu/tx: generalize single-factor transforms Not that useful, but it gives us fast small odd-length transforms.	2 years ago
Lynne	79f11e2409	lavu/tx: make prime factor transforms truly in-place They all overwrote in[0] and then used it as a DC.	2 years ago
Haihao Xiang	3dc8bceabe	lavu/pixfmt: Update the description for AV_PIX_FMT_QSV Since D3D11 was introduced for QSV in FFmpeg 5.0, there is an implied API/ABI change for user-supplied frames [1], hence update the description for AV_PIX_FMT_QSV. [1] https://ffmpeg.org/pipermail/ffmpeg-devel/2021-December/290444.html Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>	2 years ago
Zhao Zhili	b7a3f16957	avutil/hwcontext: verify hw_frames_ctx in transfer_data_alloc Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>	2 years ago
Zhao Zhili	2697f23f4e	avutil/hwcontext_mediacodec: add ANativeWindow support Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>	2 years ago
James Almer	84fe53f6e1	avutil/hwcontext_cuda: fix compilation without Vulkan after last commit Signed-off-by: James Almer <jamrial@gmail.com>	2 years ago
James Almer	f4aa5c275f	avutil/hwcontext_cuda: fix mixed declarations and code warning Signed-off-by: James Almer <jamrial@gmail.com>	2 years ago
Andreas Rheinhardt	c124981b79	avutil/cast5: Avoid undefined shift of uint32_t by 32 places Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
James Almer	86157f5a25	avutil/tx: use llrintf() to convert a float into a 64 bit integer Should fix fate failures on Windowx x86 targets, where long is 32 bits. Reviewed-by: Martin Storsjö <martin@martin.st> Signed-off-by: James Almer <jamrial@gmail.com>	2 years ago
James Almer	d5c7970a27	avutil/tx: use a lower log level for the debug messages The amount of lines printed is too high for the verbose level, and the debug level is a better fit for their content. Signed-off-by: James Almer <jamrial@gmail.com>	2 years ago
Marvin Scholz	2508e846a8	avutil/dict: Improve documentation Mostly consistent formatting and consistently ordering of warnings/notes to be next to the description. Additionally group the AV_DICT_* macros. Signed-off-by: Anton Khirnov <anton@khirnov.net>	2 years ago
Marvin Scholz	3101b8afb3	avutil/dict: Use av_dict_iterate in av_dict_get_string Signed-off-by: Anton Khirnov <anton@khirnov.net>	2 years ago
Marvin Scholz	3c2050b749	avutil/dict: Use av_dict_iterate in av_dict_copy Signed-off-by: Anton Khirnov <anton@khirnov.net>	2 years ago
Marvin Scholz	5f7c5a0bd7	avutil/dict: Use av_dict_iterate in av_dict_get Signed-off-by: Anton Khirnov <anton@khirnov.net>	2 years ago
Marvin Scholz	9dad237928	avutil/dict: Add av_dict_iterate This is a more explicit iteration API rather than using the "magic" av_dict_get(d, "", t, AV_DICT_IGNORE_SUFFIX) which is not really trivial to grasp what it does when casually reading through code. Signed-off-by: Anton Khirnov <anton@khirnov.net>	2 years ago
James Darnley	0f252dfa95	avutil/tests/cpu: print the avx512icl flag	2 years ago
James Almer	6228ba141d	avutil/channel_layout: add a 7.1(top) channel layout Signed-off-by: James Almer <jamrial@gmail.com>	2 years ago
James Almer	83e918de71	avutil/channel_layout: add a cube channel layout Signed-off-by: James Almer <jamrial@gmail.com>	2 years ago
Andreas Rheinhardt	f8efd890bf	avutil/tx_template: Move function pointers to const memory This can be achieved by moving the AVOnce out of the structure containing the function pointers; the latter can then be made const. This also has the advantage of eliminating padding in the structure (sizeof(AVOnce) is four here) and allowing the AVOnces to be put into .bss (dependening upon the implementation). Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
Andreas Rheinhardt	188216581b	avutil/tx_template: Avoid code duplication Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
Andreas Rheinhardt	2af5f55b2e	avutil/tx_template: Don't waste space for inexistent factors It is possible to avoid the factors array for the power-of-two tables for which said array is unused by using a different structure for initialization for power-of-two tables than for non-power-of-two-tables. This saves 31516B from .data. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
Andreas Rheinhardt	d7c3e52fbf	avutil/integer: Use '\|' instead of '+' where it is more natural Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago
Andreas Rheinhardt	9a6cdd1ba3	avutil/integer: Fix undefined left shifts of negative numbers Affected the integers FATE-test. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>	2 years ago

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5961 Commits (2a36e44af38c95a95a68aa93345d96f9c5c0bdf5)