diff options
Diffstat (limited to 'libavfilter/vf_yadif.c')
-rw-r--r-- | libavfilter/vf_yadif.c | 198 |
1 files changed, 98 insertions, 100 deletions
diff --git a/libavfilter/vf_yadif.c b/libavfilter/vf_yadif.c index 37e9887421..08df9479fc 100644 --- a/libavfilter/vf_yadif.c +++ b/libavfilter/vf_yadif.c @@ -1,26 +1,26 @@ /* - * Copyright (C) 2006-2010 Michael Niedermayer <michaelni@gmx.at> + * Copyright (C) 2006-2011 Michael Niedermayer <michaelni@gmx.at> * 2010 James Darnley <james.darnley@gmail.com> * - * This file is part of Libav. - * - * Libav is free software; you can redistribute it and/or modify + * FFmpeg 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, + * 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 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., + * with FFmpeg; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ +#include "libavutil/avassert.h" #include "libavutil/cpu.h" #include "libavutil/common.h" +#include "libavutil/opt.h" #include "libavutil/pixdesc.h" #include "avfilter.h" #include "formats.h" @@ -32,14 +32,17 @@ #include <assert.h> #define CHECK(j)\ - { int score = FFABS(cur[mrefs + off_left + (j)] - cur[prefs + off_left - (j)])\ + { int score = FFABS(cur[mrefs - 1 + (j)] - cur[prefs - 1 - (j)])\ + FFABS(cur[mrefs +(j)] - cur[prefs -(j)])\ - + FFABS(cur[mrefs + off_right + (j)] - cur[prefs + off_right - (j)]);\ + + FFABS(cur[mrefs + 1 + (j)] - cur[prefs + 1 - (j)]);\ if (score < spatial_score) {\ spatial_score= score;\ spatial_pred= (cur[mrefs +(j)] + cur[prefs -(j)])>>1;\ -#define FILTER(start, end) \ +/* The is_not_edge argument here controls when the code will enter a branch + * which reads up to and including x-3 and x+3. */ + +#define FILTER(start, end, is_not_edge) \ for (x = start; x < end; x++) { \ int c = cur[mrefs]; \ int d = (prev2[0] + next2[0])>>1; \ @@ -49,12 +52,10 @@ int temporal_diff2 =(FFABS(next[mrefs] - c) + FFABS(next[prefs] - e) )>>1; \ int diff = FFMAX3(temporal_diff0 >> 1, temporal_diff1, temporal_diff2); \ int spatial_pred = (c+e) >> 1; \ - int off_right = (x < w - 1) ? 1 : -1;\ - int off_left = x ? -1 : 1;\ - int spatial_score = FFABS(cur[mrefs + off_left] - cur[prefs + off_left]) + FFABS(c-e) \ - + FFABS(cur[mrefs + off_right] - cur[prefs + off_right]) - 1; \ \ - if (x > 2 && x < w - 3) {\ + if (is_not_edge) {\ + int spatial_score = FFABS(cur[mrefs - 1] - cur[prefs - 1]) + FFABS(c-e) \ + + FFABS(cur[mrefs + 1] - cur[prefs + 1]) - 1; \ CHECK(-1) CHECK(-2) }} }} \ CHECK( 1) CHECK( 2) }} }} \ }\ @@ -95,12 +96,15 @@ static void filter_line_c(void *dst1, uint8_t *prev2 = parity ? prev : cur ; uint8_t *next2 = parity ? cur : next; - FILTER(0, w) + /* The function is called with the pointers already pointing to data[3] and + * with 6 subtracted from the width. This allows the FILTER macro to be + * called so that it processes all the pixels normally. A constant value of + * true for is_not_edge lets the compiler ignore the if statement. */ + FILTER(0, w, 1) } static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1, - int w, int prefs, int mrefs, int parity, int mode, - int l_edge) + int w, int prefs, int mrefs, int parity, int mode) { uint8_t *dst = dst1; uint8_t *prev = prev1; @@ -110,7 +114,9 @@ static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1, uint8_t *prev2 = parity ? prev : cur ; uint8_t *next2 = parity ? cur : next; - FILTER(0, l_edge) + /* Only edge pixels need to be processed here. A constant value of false + * for is_not_edge should let the compiler ignore the whole branch. */ + FILTER(0, 3, 0) dst = (uint8_t*)dst1 + w - 3; prev = (uint8_t*)prev1 + w - 3; @@ -119,7 +125,7 @@ static void filter_edges(void *dst1, void *prev1, void *cur1, void *next1, prev2 = (uint8_t*)(parity ? prev : cur); next2 = (uint8_t*)(parity ? cur : next); - FILTER(w - 3, w) + FILTER(w - 3, w, 0) } @@ -138,12 +144,11 @@ static void filter_line_c_16bit(void *dst1, mrefs /= 2; prefs /= 2; - FILTER(0, w) + FILTER(0, w, 1) } static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1, - int w, int prefs, int mrefs, int parity, int mode, - int l_edge) + int w, int prefs, int mrefs, int parity, int mode) { uint16_t *dst = dst1; uint16_t *prev = prev1; @@ -153,7 +158,7 @@ static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1, uint16_t *prev2 = parity ? prev : cur ; uint16_t *next2 = parity ? cur : next; - FILTER(0, l_edge) + FILTER(0, 3, 0) dst = (uint16_t*)dst1 + w - 3; prev = (uint16_t*)prev1 + w - 3; @@ -162,7 +167,7 @@ static void filter_edges_16bit(void *dst1, void *prev1, void *cur1, void *next1, prev2 = (uint16_t*)(parity ? prev : cur); next2 = (uint16_t*)(parity ? cur : next); - FILTER(w - 3, w) + FILTER(w - 3, w, 0) } static void filter(AVFilterContext *ctx, AVFrame *dstpic, @@ -176,7 +181,7 @@ static void filter(AVFilterContext *ctx, AVFrame *dstpic, int h = dstpic->height; int refs = yadif->cur->linesize[i]; int df = (yadif->csp->comp[i].depth_minus1 + 8) / 8; - int l_edge, l_edge_pix; + int pix_3 = 3 * df; if (i == 1 || i == 2) { /* Why is this not part of the per-plane description thing? */ @@ -187,8 +192,6 @@ static void filter(AVFilterContext *ctx, AVFrame *dstpic, /* filtering reads 3 pixels to the left/right; to avoid invalid reads, * we need to call the c variant which avoids this for border pixels */ - l_edge = yadif->req_align; - l_edge_pix = l_edge / df; for (y = 0; y < h; y++) { if ((y ^ parity) & 1) { @@ -197,22 +200,15 @@ static void filter(AVFilterContext *ctx, AVFrame *dstpic, uint8_t *next = &yadif->next->data[i][y * refs]; uint8_t *dst = &dstpic->data[i][y * dstpic->linesize[i]]; int mode = y == 1 || y + 2 == h ? 2 : yadif->mode; - if (yadif->req_align) { - yadif->filter_line(dst + l_edge, prev + l_edge, cur + l_edge, - next + l_edge, w - l_edge_pix - 3, - y + 1 < h ? refs : -refs, - y ? -refs : refs, - parity ^ tff, mode); - yadif->filter_edges(dst, prev, cur, next, w, - y + 1 < h ? refs : -refs, - y ? -refs : refs, - parity ^ tff, mode, l_edge_pix); - } else { - yadif->filter_line(dst, prev, cur, next + l_edge, w, - y + 1 < h ? refs : -refs, - y ? -refs : refs, - parity ^ tff, mode); - } + yadif->filter_line(dst + pix_3, prev + pix_3, cur + pix_3, + next + pix_3, w - 6, + y + 1 < h ? refs : -refs, + y ? -refs : refs, + parity ^ tff, mode); + yadif->filter_edges(dst, prev, cur, next, w, + y + 1 < h ? refs : -refs, + y ? -refs : refs, + parity ^ tff, mode); } else { memcpy(&dstpic->data[i][y * dstpic->linesize[i]], &yadif->cur->data[i][y * refs], w * df); @@ -223,24 +219,6 @@ static void filter(AVFilterContext *ctx, AVFrame *dstpic, emms_c(); } -static AVFrame *get_video_buffer(AVFilterLink *link, int w, int h) -{ - AVFrame *frame; - int width = FFALIGN(w, 32); - int height = FFALIGN(h + 2, 32); - int i; - - frame = ff_default_get_video_buffer(link, width, height); - - frame->width = w; - frame->height = h; - - for (i = 0; i < 3; i++) - frame->data[i] += frame->linesize[i]; - - return frame; -} - static int return_frame(AVFilterContext *ctx, int is_second) { YADIFContext *yadif = ctx->priv; @@ -286,6 +264,8 @@ static int filter_frame(AVFilterLink *link, AVFrame *frame) AVFilterContext *ctx = link->dst; YADIFContext *yadif = ctx->priv; + av_assert0(frame); + if (yadif->frame_pending) return_frame(ctx, 1); @@ -298,7 +278,7 @@ static int filter_frame(AVFilterLink *link, AVFrame *frame) if (!yadif->cur) return 0; - if (yadif->auto_enable && !yadif->cur->interlaced_frame) { + if (yadif->deint && !yadif->cur->interlaced_frame) { yadif->out = av_frame_clone(yadif->cur); if (!yadif->out) return AVERROR(ENOMEM); @@ -344,7 +324,7 @@ static int request_frame(AVFilterLink *link) ret = ff_request_frame(link->src->inputs[0]); - if (ret == AVERROR_EOF && yadif->next) { + if (ret == AVERROR_EOF && yadif->cur) { AVFrame *next = av_frame_clone(yadif->next); if (!next) @@ -362,41 +342,40 @@ static int request_frame(AVFilterLink *link) return 0; } -static int poll_frame(AVFilterLink *link) -{ - YADIFContext *yadif = link->src->priv; - int ret, val; +#define OFFSET(x) offsetof(YADIFContext, x) +#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM - if (yadif->frame_pending) - return 1; +#define CONST(name, help, val, unit) { name, help, 0, AV_OPT_TYPE_CONST, {.i64=val}, INT_MIN, INT_MAX, FLAGS, unit } - val = ff_poll_frame(link->src->inputs[0]); - if (val <= 0) - return val; +static const AVOption yadif_options[] = { + { "mode", "specify the interlacing mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=YADIF_MODE_SEND_FRAME}, 0, 3, FLAGS, "mode"}, + CONST("send_frame", "send one frame for each frame", YADIF_MODE_SEND_FRAME, "mode"), + CONST("send_field", "send one frame for each field", YADIF_MODE_SEND_FIELD, "mode"), + CONST("send_frame_nospatial", "send one frame for each frame, but skip spatial interlacing check", YADIF_MODE_SEND_FRAME_NOSPATIAL, "mode"), + CONST("send_field_nospatial", "send one frame for each field, but skip spatial interlacing check", YADIF_MODE_SEND_FIELD_NOSPATIAL, "mode"), - //FIXME change API to not requre this red tape - if (val == 1 && !yadif->next) { - if ((ret = ff_request_frame(link->src->inputs[0])) < 0) - return ret; - val = ff_poll_frame(link->src->inputs[0]); - if (val <= 0) - return val; - } - assert(yadif->next || !val); + { "parity", "specify the assumed picture field parity", OFFSET(parity), AV_OPT_TYPE_INT, {.i64=YADIF_PARITY_AUTO}, -1, 1, FLAGS, "parity" }, + CONST("tff", "assume top field first", YADIF_PARITY_TFF, "parity"), + CONST("bff", "assume bottom field first", YADIF_PARITY_BFF, "parity"), + CONST("auto", "auto detect parity", YADIF_PARITY_AUTO, "parity"), - if (yadif->auto_enable && yadif->next && !yadif->next->interlaced_frame) - return val; + { "deint", "specify which frames to deinterlace", OFFSET(deint), AV_OPT_TYPE_INT, {.i64=YADIF_DEINT_ALL}, 0, 1, FLAGS, "deint" }, + CONST("all", "deinterlace all frames", YADIF_DEINT_ALL, "deint"), + CONST("interlaced", "only deinterlace frames marked as interlaced", YADIF_DEINT_INTERLACED, "deint"), - return val * ((yadif->mode&1)+1); -} + {NULL}, +}; + +AVFILTER_DEFINE_CLASS(yadif); static av_cold void uninit(AVFilterContext *ctx) { YADIFContext *yadif = ctx->priv; - if (yadif->prev) av_frame_free(&yadif->prev); - if (yadif->cur ) av_frame_free(&yadif->cur ); - if (yadif->next) av_frame_free(&yadif->next); + av_frame_free(&yadif->prev); + av_frame_free(&yadif->cur ); + av_frame_free(&yadif->next); + av_opt_free(yadif); } static int query_formats(AVFilterContext *ctx) @@ -414,13 +393,24 @@ static int query_formats(AVFilterContext *ctx) AV_NE( AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_GRAY16LE ), AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUVJ440P, + AV_NE( AV_PIX_FMT_YUV420P9BE, AV_PIX_FMT_YUV420P9LE ), + AV_NE( AV_PIX_FMT_YUV422P9BE, AV_PIX_FMT_YUV422P9LE ), + AV_NE( AV_PIX_FMT_YUV444P9BE, AV_PIX_FMT_YUV444P9LE ), AV_NE( AV_PIX_FMT_YUV420P10BE, AV_PIX_FMT_YUV420P10LE ), AV_NE( AV_PIX_FMT_YUV422P10BE, AV_PIX_FMT_YUV422P10LE ), AV_NE( AV_PIX_FMT_YUV444P10BE, AV_PIX_FMT_YUV444P10LE ), + AV_NE( AV_PIX_FMT_YUV420P12BE, AV_PIX_FMT_YUV420P12LE ), + AV_NE( AV_PIX_FMT_YUV422P12BE, AV_PIX_FMT_YUV422P12LE ), + AV_NE( AV_PIX_FMT_YUV444P12BE, AV_PIX_FMT_YUV444P12LE ), + AV_NE( AV_PIX_FMT_YUV420P14BE, AV_PIX_FMT_YUV420P14LE ), + AV_NE( AV_PIX_FMT_YUV422P14BE, AV_PIX_FMT_YUV422P14LE ), + AV_NE( AV_PIX_FMT_YUV444P14BE, AV_PIX_FMT_YUV444P14LE ), AV_NE( AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_YUV420P16LE ), AV_NE( AV_PIX_FMT_YUV422P16BE, AV_PIX_FMT_YUV422P16LE ), AV_NE( AV_PIX_FMT_YUV444P16BE, AV_PIX_FMT_YUV444P16LE ), AV_PIX_FMT_YUVA420P, + AV_PIX_FMT_YUVA422P, + AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE }; @@ -432,23 +422,24 @@ static int query_formats(AVFilterContext *ctx) static av_cold int init(AVFilterContext *ctx, const char *args) { YADIFContext *yadif = ctx->priv; + static const char *shorthand[] = { "mode", "parity", "deint", NULL }; + int ret; - yadif->mode = 0; - yadif->parity = -1; - yadif->auto_enable = 0; + yadif->class = &yadif_class; + av_opt_set_defaults(yadif); - if (args) - sscanf(args, "%d:%d:%d", - &yadif->mode, &yadif->parity, &yadif->auto_enable); + if ((ret = av_opt_set_from_string(yadif, args, shorthand, "=", ":")) < 0) + return ret; - av_log(ctx, AV_LOG_VERBOSE, "mode:%d parity:%d auto_enable:%d\n", - yadif->mode, yadif->parity, yadif->auto_enable); + av_log(ctx, AV_LOG_VERBOSE, "mode:%d parity:%d deint:%d\n", + yadif->mode, yadif->parity, yadif->deint); return 0; } static int config_props(AVFilterLink *link) { + AVFilterContext *ctx = link->src; YADIFContext *s = link->src->priv; link->time_base.num = link->src->inputs[0]->time_base.num; @@ -456,6 +447,14 @@ static int config_props(AVFilterLink *link) link->w = link->src->inputs[0]->w; link->h = link->src->inputs[0]->h; + if(s->mode&1) + link->frame_rate = av_mul_q(link->src->inputs[0]->frame_rate, (AVRational){2,1}); + + if (link->w < 3 || link->h < 3) { + av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or lines is not supported\n"); + return AVERROR(EINVAL); + } + s->csp = av_pix_fmt_desc_get(link->format); if (s->csp->comp[0].depth_minus1 / 8 == 1) { s->filter_line = filter_line_c_16bit; @@ -475,7 +474,6 @@ static const AVFilterPad avfilter_vf_yadif_inputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, - .get_video_buffer = get_video_buffer, .filter_frame = filter_frame, }, { NULL } @@ -485,7 +483,6 @@ static const AVFilterPad avfilter_vf_yadif_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, - .poll_frame = poll_frame, .request_frame = request_frame, .config_props = config_props, }, @@ -494,7 +491,7 @@ static const AVFilterPad avfilter_vf_yadif_outputs[] = { AVFilter avfilter_vf_yadif = { .name = "yadif", - .description = NULL_IF_CONFIG_SMALL("Deinterlace the input image"), + .description = NULL_IF_CONFIG_SMALL("Deinterlace the input image."), .priv_size = sizeof(YADIFContext), .init = init, @@ -502,6 +499,7 @@ AVFilter avfilter_vf_yadif = { .query_formats = query_formats, .inputs = avfilter_vf_yadif_inputs, - .outputs = avfilter_vf_yadif_outputs, + + .priv_class = &yadif_class, }; 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