diff options
Diffstat (limited to 'media/libvpx/vpx/internal/vpx_psnr.h')
| -rw-r--r-- | media/libvpx/vpx/internal/vpx_psnr.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/media/libvpx/vpx/internal/vpx_psnr.h b/media/libvpx/vpx/internal/vpx_psnr.h new file mode 100644 index 000000000..07d81bb8d --- /dev/null +++ b/media/libvpx/vpx/internal/vpx_psnr.h @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2014 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef VPX_INTERNAL_VPX_PSNR_H_ +#define VPX_INTERNAL_VPX_PSNR_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +// TODO(dkovalev) change vpx_sse_to_psnr signature: double -> int64_t + +/*!\brief Converts SSE to PSNR + * + * Converts sum of squared errros (SSE) to peak signal-to-noise ratio (PNSR). + * + * \param[in] samples Number of samples + * \param[in] peak Max sample value + * \param[in] sse Sum of squared errors + */ +double vpx_sse_to_psnr(double samples, double peak, double sse); + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // VPX_INTERNAL_VPX_PSNR_H_ |