diff options
Diffstat (limited to 'libavfilter/vf_fieldorder.c')
-rw-r--r-- | libavfilter/vf_fieldorder.c | 61 |
1 files changed, 32 insertions, 29 deletions
diff --git a/libavfilter/vf_fieldorder.c b/libavfilter/vf_fieldorder.c index e7745e1690..1ef2ad8ab3 100644 --- a/libavfilter/vf_fieldorder.c +++ b/libavfilter/vf_fieldorder.c @@ -1,20 +1,20 @@ /* * Copyright (c) 2011 Mark Himsley * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -23,11 +23,7 @@ * video field order filter, heavily influenced by vf_pad.c */ -/* #define DEBUG */ - -#include <stdio.h> -#include <string.h> - +#include "libavutil/opt.h" #include "libavutil/imgutils.h" #include "libavutil/internal.h" #include "libavutil/pixdesc.h" @@ -36,34 +32,37 @@ #include "internal.h" #include "video.h" -typedef struct -{ +enum FieldOrder { + ORDER_TFF, + ORDER_BFF, + ORDER_NB, +}; + +typedef struct { + const AVClass *class; + enum FieldOrder order; unsigned int dst_tff; ///< output bff/tff int line_size[4]; ///< bytes of pixel data per line for each plane } FieldOrderContext; +#define OFFSET(x) offsetof(FieldOrderContext, x) +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM + +static const AVOption fieldorder_options[] = { + { "order", "set output field order", OFFSET(order), AV_OPT_TYPE_INT, {.i64=ORDER_TFF}, 0, ORDER_NB-1, FLAGS, "order" }, + { "tff", "set top field first", 0, AV_OPT_TYPE_CONST, {.i64=ORDER_TFF}, .flags=FLAGS, .unit="order" }, + { "bff", "set bottom field first", 0, AV_OPT_TYPE_CONST, {.i64=ORDER_BFF}, .flags=FLAGS, .unit="order" }, + { NULL } +}; + +AVFILTER_DEFINE_CLASS(fieldorder); + static av_cold int init(AVFilterContext *ctx, const char *args) { FieldOrderContext *fieldorder = ctx->priv; - const char *tff = "tff"; - const char *bff = "bff"; - - if (!args) { - fieldorder->dst_tff = 1; - } else if (sscanf(args, "%u", &fieldorder->dst_tff) == 1) { - fieldorder->dst_tff = !!fieldorder->dst_tff; - } else if (!strcmp(tff, args)) { - fieldorder->dst_tff = 1; - } else if (!strcmp(bff, args)) { - fieldorder->dst_tff = 0; - } else { - av_log(ctx, AV_LOG_ERROR, "Invalid argument '%s'.\n", args); - return AVERROR(EINVAL); - } - - av_log(ctx, AV_LOG_VERBOSE, "output field order: %s\n", - fieldorder->dst_tff ? tff : bff); + fieldorder->dst_tff = fieldorder->order == ORDER_TFF; + av_log(ctx, AV_LOG_VERBOSE, "tff:%d\n", fieldorder->dst_tff); return 0; } @@ -197,6 +196,8 @@ static const AVFilterPad avfilter_vf_fieldorder_outputs[] = { { NULL } }; +static const char *const shorthand[] = { "order", NULL }; + AVFilter avfilter_vf_fieldorder = { .name = "fieldorder", .description = NULL_IF_CONFIG_SMALL("Set the field order."), @@ -205,4 +206,6 @@ AVFilter avfilter_vf_fieldorder = { .query_formats = query_formats, .inputs = avfilter_vf_fieldorder_inputs, .outputs = avfilter_vf_fieldorder_outputs, + .priv_class = &fieldorder_class, + .shorthand = shorthand, }; |