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author | Michael Niedermayer <michaelni@gmx.at> | 2012-06-08 23:02:54 +0200 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2012-06-08 23:59:09 +0200 |
commit | 7e22514d98ecd56cc4e55dac7c813551e2152b80 (patch) | |
tree | 13c47e1e1215525323177a008d5406a7d61a418a /libavutil/float_dsp.h | |
parent | e016e3c9d7ce1493b952bdd8232f7e03077469a3 (diff) | |
parent | 3b81a18ba30bf18bab78f56744d8f3e1e4060104 (diff) | |
download | ffmpeg-streaming-7e22514d98ecd56cc4e55dac7c813551e2152b80.zip ffmpeg-streaming-7e22514d98ecd56cc4e55dac7c813551e2152b80.tar.gz |
Merge remote-tracking branch 'qatar/master'
* qatar/master:
float_dsp: ppc: add a separate header for Altivec function prototypes
ARM: fix float_dsp breakage from d5a7229
Add a float DSP framework to libavutil
PPC: Move types_altivec.h and util_altivec.h from libavcodec to libavutil
ARM: Move asm.S from libavcodec to libavutil
vc1dsp: mark put/avg_vc1_mspel_mc() always_inline
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil/float_dsp.h')
-rw-r--r-- | libavutil/float_dsp.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libavutil/float_dsp.h b/libavutil/float_dsp.h new file mode 100644 index 0000000..02c4ab7 --- /dev/null +++ b/libavutil/float_dsp.h @@ -0,0 +1,53 @@ +/* + * 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 + */ + +#ifndef AVUTIL_FLOAT_DSP_H +#define AVUTIL_FLOAT_DSP_H + +typedef struct AVFloatDSPContext { + /** + * Calculate the product of two vectors of floats and store the result in + * a vector of floats. + * + * @param dst output vector + * constraints: 32-byte aligned + * @param src0 first input vector + * constraints: 32-byte aligned + * @param src1 second input vector + * constraints: 32-byte aligned + * @param len number of elements in the input + * constraints: multiple of 16 + */ + void (*vector_fmul)(float *dst, const float *src0, const float *src1, + int len); +} AVFloatDSPContext; + +/** + * Initialize a float DSP context. + * + * @param fdsp float DSP context + * @param strict setting to non-zero avoids using functions which may not be IEEE-754 compliant + */ +void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int strict); + + +void ff_float_dsp_init_arm(AVFloatDSPContext *fdsp); +void ff_float_dsp_init_ppc(AVFloatDSPContext *fdsp, int strict); +void ff_float_dsp_init_x86(AVFloatDSPContext *fdsp); + +#endif /* AVUTIL_FLOAT_DSP_H */ |