diff options
Diffstat (limited to 'libavfilter/vf_crop.c')
| -rw-r--r-- | libavfilter/vf_crop.c | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/libavfilter/vf_crop.c b/libavfilter/vf_crop.c index cb01bd4..f9039b5 100644 --- a/libavfilter/vf_crop.c +++ b/libavfilter/vf_crop.c @@ -1,20 +1,20 @@ /* * Copyright (c) 2007 Bobby Bingham * - * 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 */ @@ -32,14 +32,16 @@ #include "libavutil/imgutils.h" #include "libavutil/mathematics.h" -static const char *var_names[] = { - "E", - "PHI", - "PI", +static const char * const var_names[] = { "in_w", "iw", ///< width of the input video "in_h", "ih", ///< height of the input video "out_w", "ow", ///< width of the cropped video "out_h", "oh", ///< height of the cropped video + "a", + "sar", + "dar", + "hsub", + "vsub", "x", "y", "n", ///< number of frame @@ -49,13 +51,15 @@ static const char *var_names[] = { }; enum var_name { - VAR_E, - VAR_PHI, - VAR_PI, VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH, + VAR_A, + VAR_SAR, + VAR_DAR, + VAR_HSUB, + VAR_VSUB, VAR_X, VAR_Y, VAR_N, @@ -105,7 +109,7 @@ static int query_formats(AVFilterContext *ctx) PIX_FMT_NONE }; - avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts)); + avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts)); return 0; } @@ -157,11 +161,13 @@ static int config_input(AVFilterLink *link) const char *expr; double res; - crop->var_values[VAR_E] = M_E; - crop->var_values[VAR_PHI] = M_PHI; - crop->var_values[VAR_PI] = M_PI; crop->var_values[VAR_IN_W] = crop->var_values[VAR_IW] = ctx->inputs[0]->w; crop->var_values[VAR_IN_H] = crop->var_values[VAR_IH] = ctx->inputs[0]->h; + crop->var_values[VAR_A] = (float) link->w / link->h; + crop->var_values[VAR_SAR] = link->sample_aspect_ratio.num ? av_q2d(link->sample_aspect_ratio) : 1; + crop->var_values[VAR_DAR] = crop->var_values[VAR_A] * crop->var_values[VAR_SAR]; + crop->var_values[VAR_HSUB] = 1<<pix_desc->log2_chroma_w; + crop->var_values[VAR_VSUB] = 1<<pix_desc->log2_chroma_h; crop->var_values[VAR_X] = NAN; crop->var_values[VAR_Y] = NAN; crop->var_values[VAR_OUT_W] = crop->var_values[VAR_OW] = NAN; @@ -328,7 +334,7 @@ AVFilter avfilter_vf_crop = { .init = init, .uninit = uninit, - .inputs = (AVFilterPad[]) {{ .name = "default", + .inputs = (const AVFilterPad[]) {{ .name = "default", .type = AVMEDIA_TYPE_VIDEO, .start_frame = start_frame, .draw_slice = draw_slice, @@ -336,7 +342,7 @@ AVFilter avfilter_vf_crop = { .get_video_buffer = avfilter_null_get_video_buffer, .config_props = config_input, }, { .name = NULL}}, - .outputs = (AVFilterPad[]) {{ .name = "default", + .outputs = (const AVFilterPad[]) {{ .name = "default", .type = AVMEDIA_TYPE_VIDEO, .config_props = config_output, }, { .name = NULL}}, |
