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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /media/ffvpx/libavcodec/avfft.c | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | media/ffvpx/libavcodec/avfft.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/avfft.c b/media/ffvpx/libavcodec/avfft.c new file mode 100644 index 0000000000..2200f37708 --- /dev/null +++ b/media/ffvpx/libavcodec/avfft.c @@ -0,0 +1,145 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/attributes.h" +#include "libavutil/mem.h" +#include "avfft.h" +#include "fft.h" +#include "rdft.h" +#include "dct.h" + +/* FFT */ + +FFTContext *av_fft_init(int nbits, int inverse) +{ + FFTContext *s = av_mallocz(sizeof(*s)); + + if (s && ff_fft_init(s, nbits, inverse)) + av_freep(&s); + + return s; +} + +void av_fft_permute(FFTContext *s, FFTComplex *z) +{ + s->fft_permute(s, z); +} + +void av_fft_calc(FFTContext *s, FFTComplex *z) +{ + s->fft_calc(s, z); +} + +av_cold void av_fft_end(FFTContext *s) +{ + if (s) { + ff_fft_end(s); + av_free(s); + } +} + +#if CONFIG_MDCT + +FFTContext *av_mdct_init(int nbits, int inverse, double scale) +{ + FFTContext *s = av_malloc(sizeof(*s)); + + if (s && ff_mdct_init(s, nbits, inverse, scale)) + av_freep(&s); + + return s; +} + +void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input) +{ + s->imdct_calc(s, output, input); +} + +void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input) +{ + s->imdct_half(s, output, input); +} + +void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input) +{ + s->mdct_calc(s, output, input); +} + +av_cold void av_mdct_end(FFTContext *s) +{ + if (s) { + ff_mdct_end(s); + av_free(s); + } +} + +#endif /* CONFIG_MDCT */ + +#if CONFIG_RDFT + +RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans) +{ + RDFTContext *s = av_malloc(sizeof(*s)); + + if (s && ff_rdft_init(s, nbits, trans)) + av_freep(&s); + + return s; +} + +void av_rdft_calc(RDFTContext *s, FFTSample *data) +{ + s->rdft_calc(s, data); +} + +av_cold void av_rdft_end(RDFTContext *s) +{ + if (s) { + ff_rdft_end(s); + av_free(s); + } +} + +#endif /* CONFIG_RDFT */ + +#if CONFIG_DCT + +DCTContext *av_dct_init(int nbits, enum DCTTransformType inverse) +{ + DCTContext *s = av_malloc(sizeof(*s)); + + if (s && ff_dct_init(s, nbits, inverse)) + av_freep(&s); + + return s; +} + +void av_dct_calc(DCTContext *s, FFTSample *data) +{ + s->dct_calc(s, data); +} + +av_cold void av_dct_end(DCTContext *s) +{ + if (s) { + ff_dct_end(s); + av_free(s); + } +} + +#endif /* CONFIG_DCT */ |