diff options
Diffstat (limited to 'libavfilter/vf_idet.h')
-rw-r--r-- | libavfilter/vf_idet.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/libavfilter/vf_idet.h b/libavfilter/vf_idet.h new file mode 100644 index 0000000000..47e3d9ce81 --- /dev/null +++ b/libavfilter/vf_idet.h @@ -0,0 +1,80 @@ +/* + * 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 AVFILTER_IDET_H +#define AVFILTER_IDET_H + +#include "libavutil/pixdesc.h" +#include "avfilter.h" + +#define HIST_SIZE 4 + +typedef int (*ff_idet_filter_func)(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w); + +typedef enum { + TFF, + BFF, + PROGRESSIVE, + UNDETERMINED, +} Type; + +typedef enum { + REPEAT_NONE, + REPEAT_TOP, + REPEAT_BOTTOM, +} RepeatedField; + +typedef struct { + const AVClass *class; + float interlace_threshold; + float progressive_threshold; + float repeat_threshold; + float half_life; + uint64_t decay_coefficient; + + Type last_type; + + uint64_t repeats[3]; + uint64_t prestat[4]; + uint64_t poststat[4]; + uint64_t total_repeats[3]; + uint64_t total_prestat[4]; + uint64_t total_poststat[4]; + + uint8_t history[HIST_SIZE]; + + AVFrame *cur; + AVFrame *next; + AVFrame *prev; + ff_idet_filter_func filter_line; + + int interlaced_flag_accuracy; + int analyze_interlaced_flag; + int analyze_interlaced_flag_done; + + const AVPixFmtDescriptor *csp; + int eof; +} IDETContext; + +void ff_idet_init_x86(IDETContext *idet, int for_16b); + +/* main fall-back for left-over */ +int ff_idet_filter_line_c(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w); +int ff_idet_filter_line_c_16bit(const uint16_t *a, const uint16_t *b, const uint16_t *c, int w); + +#endif |