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${ noResults }
4 Commits (5ad436fcb91a538343e2798ce29630ad4aa71b3c)
Author | SHA1 | Message | Date |
---|---|---|---|
Muhammad Faiz | fc3a03fcf9 |
avfilter: take_samples: do not directly return frame when samples are skipped
Modifying data pointer when skipping samples may make it unaligned. Workaround for Ticket6349. This should fix the crash of ticket's testcase and a crash/regression with avxsynth (reported by Michael Niedermayer). Also change frame->nb_samples < max to frame->nb_samples <= max. This improves performance. Benchmark: ./ffmpeg -filter_complex "aevalsrc=0:n=1166,firequalizer=fixed=on" -f null null old: 25767 decicycles in take_samples, 1023 runs, 1 skips 25422 decicycles in take_samples, 2047 runs, 1 skips 25181 decicycles in take_samples, 4095 runs, 1 skips 24904 decicycles in take_samples, 8191 runs, 1 skips new: 550 decicycles in take_samples, 1024 runs, 0 skips 548 decicycles in take_samples, 2048 runs, 0 skips 545 decicycles in take_samples, 4096 runs, 0 skips 544 decicycles in take_samples, 8192 runs, 0 skips Reviewed-by: Nicolas George <george@nsup.org> Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Muhammad Faiz <mfcc64@gmail.com> |
8 years ago |
Nicolas George | 383057f8e7 |
lavfi: make ff_framequeue_skip_samples() more useful.
Instead of just updating statistics and leaving the work to the call site, have it actually do the work. Also: skip the samples by updating the frame data pointers instead of moving the samples. More efficient and avoid writing into shared frames. Found-By: Muhammad Faiz <mfcc64@gmail.com> |
8 years ago |
Nicolas George | bec8ea20c8 |
lavfi/framequeue: avoid empty structs.
Fix compilation on MSVC. |
8 years ago |
Nicolas George | 62b11db0a0 |
lavfi: add FFFrameQueue API.
|
8 years ago |