From 2e1704059ae8625beda2ffde847ad22c5ba416dc Mon Sep 17 00:00:00 2001 From: Kieran Kunhya Date: Tue, 11 Nov 2014 18:43:42 +0000 Subject: vf_interlace: Add SIMD for lowpass filter Signed-off-by: Luca Barbato --- libavfilter/interlace.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 libavfilter/interlace.h (limited to 'libavfilter/interlace.h') diff --git a/libavfilter/interlace.h b/libavfilter/interlace.h new file mode 100644 index 0000000000..2d470508f4 --- /dev/null +++ b/libavfilter/interlace.h @@ -0,0 +1,59 @@ +/* + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Libav 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with Libav; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +/** + * @file + * progressive to interlaced content filter, inspired by heavy debugging of + * tinterlace filter. + */ + +#ifndef AVFILTER_INTERLACE_H +#define AVFILTER_INTERLACE_H + +#include "libavutil/common.h" +#include "libavutil/imgutils.h" +#include "libavutil/opt.h" + +#include "avfilter.h" +#include "formats.h" +#include "internal.h" +#include "video.h" + +enum ScanMode { + MODE_TFF = 0, + MODE_BFF = 1, +}; + +enum FieldType { + FIELD_UPPER = 0, + FIELD_LOWER = 1, +}; + +typedef struct InterlaceContext { + const AVClass *class; + enum ScanMode scan; // top or bottom field first scanning + int lowpass; // enable or disable low pass filterning + AVFrame *cur, *next; // the two frames from which the new one is obtained + int got_output; // signal an output frame is reday to request_frame() + void (*lowpass_line)(uint8_t *dstp, ptrdiff_t linesize, const uint8_t *srcp, + const uint8_t *srcp_above, const uint8_t *srcp_below); +} InterlaceContext; + +void ff_interlace_init_x86(InterlaceContext *interlace); + +#endif /* AVFILTER_INTERLACE_H */ -- cgit v1.2.3